Alcon Phaco machine Series 20000 Legacy Service manual

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SERVICE MANUAL

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ALCON SURGICAL a division of Alcon Laboratories, Inc.

15800 Alton Parkway Irvine, California 92618-3818 U.S.A. Telephone: 949/753-1393

800/832-7827

FAX: 949/753-6614

906-2000-501 F, ASSEMBLY

906-2000-001 F, TEXT ONLY

* Reg. U.S. Pat. & TM Off.

2002, 1999, 1998, 1997, 1994 Alcon Laboratories, Inc.

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IMPORTANT NOTICE

Equipment improvement is an on-going process and, as such, changes may be made to the equipment after this manual is printed. Accordingly, Alcon Surgical makes no warranties, expressed or implied, that the information contained in this service manual is complete or accurate. It is understood that if this manual is used to perform service on the equipment by other than trained personnel, the user assumes all risks in the use of this manual.

CAUTION

Federal law restricts this device to sale by or on the order of a physician.

Pay close attention to warnings and cautions in this manual. Warnings are written to protect individuals from bodily injury. Cautions are written to protect the instrument from damage.

UNIVERSAL PRECAUTIONS:

Universal precautions shall be observed by all people who come in contact with the instrument and/or accessories to help prevent their exposure to blood-borne pathogens and/or other potentially infectious materials. In any circumstance, wherein the exact status of blood or body fluids/tissues encountered are unknown, it shall be uniformly considered potentially infectious and handled accordingly. This is in accordance with OSHA guidelines.

Comments or corrections concerning this manual should be addressed to:

Alcon Surgical Technical Services Group PO BOX 19587 Irvine, CA, USA 92623-9587

All rights reserved. No part of this manual may be reproduced, transmitted, or stored in a retrieval system, in any form or by any means; photocopying, electronic, mechanical, recording, or otherwise; without prior written permission from Alcon Surgical.

*Registered in the U.S. Patent and Trademark Office. **MACKOOL is a trademark of Richard J. Mackool, M.D.,

ii 906-2000-501

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SERVICE MANUAL

SERIES 20000

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906-2000-501

MANUAL REVISION RECORD

DATE REVISION REVISED PAGE NUMBERS

08/94 A Initial release

11/94 B Change of binder

12/97 C ECN 33181 - i, iii

7/98 D ECN 34142- Removed Service Test Procedure from Section Four. All pages,

except engineering drawings in Sections Six & Seven, changed to update trademarks and area codes.

11/99 E ECN 99200934

General update and edit to cover all configurations of the STTL:

Section One - updated with information from latest Operator's Manual; Section Two - added Steerable I/A, and updated remaining theory and block diagrams; Section Three - added disassembly procedures for various LCD's and new handpiece

connector panel; Section Five - updated supplies, tools, and spares tables, expanded tables for fault, warning, and advisory messages, updated troubleshooting table, added system configuration table;

Sections Six and Seven - updated all drawings and parts lists; Section Eight - added service information for the VideOverlay Parameters System.

05/2002 F ECN 20022436

General update and edit to cover all configurations of the STTL:

Section One - updated with information from latest Operator's Manual. Section Two - added NeoSonix™* information and new phaco block diagram. Section Three - added notes for upgraded systems. Section Four - removed this section (Service Test Procedure) and renumbered

subsequent sections. Section Five - renumbered to Section Four, updated supplies, tools, and spares tables, added POST codes for new CPU, updated system configuration table. Sections Six and Seven - renumbered to Sections Five and Six, updated all drawings and parts lists, added drawings for new configurations. Section Eight - renumbered to Section Seven.

906-2000-501 iii

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SECTION ONE - GENERAL INFORMATION

About This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Reference Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Receiving Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Unpacking and Setting Up the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Cautery, Diathermy, Coagulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Electronic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Cassette Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Other Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Audible Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Modes and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Irrigation (Irr) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Hydrosonics™* (Hydro) Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

AdvanTec Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Ultrasound (U/S) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Irrigation/Aspiration (I/A) Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

Vitrectomy (Vit) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

Coagulation (Coag) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

Custom Mode (for software versions 3.01 and below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Custom Mode (for software versions 3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

Test Mode (for software versions 3.01 and below). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37

Test Mode (for software versions 3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38

Footswitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40

Handpiece and Tip Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Irrigation Handpiece and Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Ultraflow™* I/A Handpieces and Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Reusable I/A Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45

Ultrasonic Handpiece In U/S Bimodal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45

Ultrasonic Handpieces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45

Hydrosonics™* Handpiece and Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46

ATIOP Handpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47

Coagulation Handpieces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47

Steerable I/A Handpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48

Steerable I/A Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48

Consumable Pak Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49

Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51

System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52

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SECTION TWO - THEORY OF OPERATION

System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Common Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Subsystem Kernel Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

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TABLE OF CONTENTS

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Host System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

CPU PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Multifunction PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Footswitch Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

IV Pole PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Video PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Front Panel Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Front Panel Controller PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Display PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Remote Control PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Fluidics Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Fluidics Controller PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Transducer PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Cassette Type PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Fluidics Backplane PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Anterior Pneumatic Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Anterior Vit Drive PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Anterior Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Phaco Subsystem (software V3.01 and below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Phaco Controller PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

U/S Driver PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Cautery PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Phaco Subsystem (software V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

NeoSonix™* Controller PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Cautery PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

Steerable I/A System (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32

SECTION THREE - PARTS LOCATION AND DISASSEMBLY

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Skins Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

STTL Disassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

SECTION FOUR - MAINTENANCE AND TROUBLESHOOTING

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Recommended Supplies (Table 4-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Recommended Tools (Table 4-2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Recommended Spares (Table 4-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

System Configurations (Table 4-4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Legacy System Fault Messages (Table 4-5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Legacy System Warning Messages (Table 4-6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Legacy System Advisory Messages (Table 4-7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Troubleshooting (Table 4-8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Maintenance Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

1 Replacing CPU PCB Lithium Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

2 Installing or Upgrading System Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

3 Cleaning the Touch Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

4 Cautery Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

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Power On Self-Test (Post) Error Codes for CPU PCB's PN 200-1592-001 and

200-1845-001 (Table 4-9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Power On Self-Test (Post) Error Codes for CPU PCB PN 200-2290-001 (Table 4-10) . . . . . . . . . . . . . 4-26

SECTION FIVE - SCHEMATICS

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

SECTION SIX - PARTS LISTS AND DRAWINGS

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

SECTION SEVEN - ADDITIONAL INFORMATION

VideOverlay Parameters System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

LIST OF ILLUSTRATIONS

TITLE PAGE #

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Figure 1-1 The Series 20000™* Legacy®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Figure 1-2 STTL Packing Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Figure 1-3 Icons used with the STTL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Figure 1-4 Coagulation Power Through 75 Ohm Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Figure 1-5 Coagulation Power vs. Load Impedance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Figure 1-6 Front Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Figure 1-7 Cassette Housing and Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Figure 1-8 Series 20000™* Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Figure 1-9 Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Figure 1-10 Remote Control Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Figure 1-11 Modes and Submodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Figure 1-12 Irrigation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Figure 1-13 Footswitch Functions - Hydrosonics™*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Figure 1-14 AdvanTec Visco Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Figure 1-15 Footswitch Functions - AdvanTec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

Figure 1-16 Footswitch Functions - U/S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Figure 1-17 Footswitch Functions - I/A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

Figure 1-18 Footswitch Functions - Vitrectomy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

Figure 1-19 Footswitch Functions - Coag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

Figure 1-20 Priming is in Progress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

Figure 1-21 Custom: Program (V3.01 and below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Figure 1-22 Special I/V Pole Setup (V3.01 and below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

Figure 1-23 Special Functions: Aspiration (V3.01 and below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

Figure 1-24 Custom: Sound (V3.01 and below). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

Figure 1-25 Custom: Footswitch (V3.01 and below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Figure 1-26 Custom Mode (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

Figure 1-27 Custom: Program (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30

Figure 1-28 Metrics Screen (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30

Figure 1-29 Special IV Pole Setup (V3.12 and above). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

Figure 1-30 Special Functions: Aspiration (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

Figure 1-31 Special Functions: Occlusion (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

Figure 1-32 Custom: Sound (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

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LIST OF ILLUSTRATIONS

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Figure 1-33 Custom: Footswitch (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

Figure 1-34 Custom: Footswitch:Procedure (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36

Figure 1-35 Accurus

Figure 1-36 Footpedal Travel By Mode of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41

Figure 1-37 Irrigation Handpiece and Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Figure 1-38 Ultraflow™* Handpiece and .3mm Tips (Handpiece Shown with Straight Tip). . . . . . . 1-44

Figure 1-39 Ultraflow™* O-Ring Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44

Figure 1-40 Ultraflow™* SP Handpiece (Handpiece Shown with .3 mm 45˚ Tip). . . . . . . . . . . . . . . 1-44

Figure 1-41 Reusable I/A Tips And Threaded Tip Adaptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45

Figure 1-42 Ultrasonic Handpiece (375-40) with Infusion Sleeve and Bubble Suppression Insert. . . 1-45

Figure 1-43 Hydrosonics™* Handpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46

Figure 1-44 NeoSonix™* Handpiece. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46

Figure 1-45 ATIOP Handpiece. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47

Figure 1-46 4 Inch Nadler Coaptation, 0.4 mm Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47

Figure 1-47 Disposable Bipolar Brush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47

Figure 1-48 Coagulation Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47

Figure 1-49 Steerable I/A Handpiece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48

Figure 1-50 Steerable I/A Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48

Figure 1-54 Handpiece Tip Styles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49

/Legacy® Footswitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40

Figure 2-1 Subsystem Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Figure 2-2 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Figure 2-3 CPU-Subsystem Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Figure 2-4 Subsystem Kernal Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Figure 2-5 Host Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Figure 2-6 Fluidics Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Figure 2-7 Stepper Motor Control Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Figure 2-8 Vit Air Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Figure 2-9 Steerable I/A Control Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

Figure FO-1 Multifunction PCB Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35

Figure FO-2 Footswitch Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36

Figure FO-3 IV Pole Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

Figure FO-4 Video PCB Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38

Figure FO-5 Front Panel Subsystem Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39

Figure FO-6 Fluidics Subsystem Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40

Figure FO-7 Phaco Subsytem Block Diagram (V3.01 and below) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

Figure FO-8 Phaco Subsytem Block Diagram (V3.12 and above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42

Figure 3-1 STTL Skins Location Diagram (Front View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Figure 3-2 STTL Skins Location Diagram (Rear View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-3 Exploded View of the STTL Front Panel Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Figure 3-4 Removal of Backlights from LCD PN 088-032 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-5 Location of LCD Backlights on LCD PN 200-1836-001 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-6 Location of LCD Backlights on LCD PN 200-1721-001 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-7 Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Figure 3-8 Series 20000™* Footswitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Figure 3-9 STTL Parts Location (Front View). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Figure 3-10 STTL Parts Location (Rear View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Figure 3-11 STTL PCB Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

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Figure 4-1 24 mm Custom Wrench Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Figure 4-2 Lithium Battery on CPU PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Figure 4-3 Disk Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Figure 7-1Rear Panel - Videoverlay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Figure 7-2RCA to SVHS Adaptor Cables Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Figure 7-3Standard Interconnect (Using RCA To SVHS Adaptor Cables). . . . . . . . . . . . . . . . . . . . 7-3

Figure 7-4Super VHS High-Resolution Setup (Using Customer-Supplied SVHS Video Cables). . . 7-5

Figure 7-5VideOverlay Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

LIST OF TABLES

TITLE PAGE #

Table 1-1 Series 20000™* Legacy® Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Table 1-2 Audible Tones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Table 1-3 Footpedal Travel in Enhanced Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

Table 1-4 Various Memory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

Table 1-5 Acceptable Pre-Occlusion/Occlusion Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

Table 1-6 Footpedal Travel in Enhanced Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36

Table 1-7 Operation by Mode and Footpedal Position for Software Versions 3.01 and Below . . . . 1-42

Table 1-8 Operation by Mode and Footpedal Position for Software Versions 3.12 and Above. . . . 1-43

LEGACY

Table 2-1 U/S Driver PCB Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Table 2-2 U/S Enable Logic (Low=0, High=1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Table 2-3 NeoSonix™* Controller PCB Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Table 2-4 U/S Enabling Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Table 3-1 Skins Removal Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 4-1 Recommended Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Table 4-2 Recommended Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Table 4-3 Recommended Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Table 4-4 System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Table 4-5 Legacy

System Fault Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Table 4-6 Legacy® System Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Table 4-7 Legacy® System Advisory Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Table 4-8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Table 4-9 Power On Self-Test (Post) Error Codes for CPU PCB's PN 200-1592-001 and

200-1845-001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Table 4-10 Power On Self-Test (Post) Error Codes for CPU PCB PN 200-2290-001 . . . . . . . . . . . . 4-26

Table 7-1 VideOverlay Display Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

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SECTION ONE

GENERAL INFORMATION

Alcon Surgical’s SERIES 20000™* LEGACY

(STTL) is a sophisticated ophthalmic surgical instrument manufactured to be durable, reliable, safe and easy to operate. This state-of-the-art instrument has been developed to be user friendly; it combines hardware that is easy to install and maintain along with computer software that increases the effectivity of the user.

ABOUT THIS MANUAL...

This manual covers all configurations of the Legacy

and is divided into eight sections as follows:

Section One-General Information

This section gives a general description of the STTL features and components. Also included is an unpacking and installation procedure.

Section Two-Theory of Operation

This section gives a detailed description of how the STTL operates starting at the system level and working down to the PCB (Printed Circuit Board) level. Detailed block diagrams are provided at the end of this section.

Section Three-Parts Location and Disassembly

This section contains parts location diagrams along with field level disassembly procedures.

Section Four-Maintenance & Troubleshooting

This section contains system maintenace procedures and troubleshooting information.

Figure 1-1 The Series 20000™* Legacy

Section Five-Schematics

This section contains the system interconnect diagram, PCB assembly drawings, and schematic diagrams.

Section Six-Parts Lists and Drawings

This section contains parts lists, engineering documentation for each major assembly, and cable drawings.

Section Seven-Additional Information

This section contains information on accessories or optional equipment that may require service.

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REFERENCE DOCUMENTS

Although this manual provides the necessary information for maintaining optimum performance of the STTL, it does not contain all of the operating procedures or functional descriptions contained in the Operator's Manual. In addition, the Warnings and Cautions in the Operator's Manual also apply for this Service Manual. The Operator's Manual supplements information provided in this manual and should be available on-site with the system.

If you have any questions or require additional information, please contact your local Service Representative or the Technical Services Department at:

ALCON SURGICAL 15800 Alton Parkway Irvine, CA 92618 (949) 753-1393 (800) 832-7827

If you are located outside the United States, please contact your local authorized Alcon Surgical distributor.

CAUTION

Federal Law restricts this device to sale by or on the order of a physician.

RECEIVING INSPECTION

The system was inspected mechanically and electrically prior to shipment. If the shipping container appears damaged, ask that the carrier’s agent be present when the system is unpacked. The system should be inspected for external damage (i.e. scratches, dents, or broken parts). If damage is discovered or if the system fails any of the functional tests notify the carrier and an Alcon Surgical representative. Retain the shipping container and packing material for the carrier’s inspection. As necessary, file a claim with the carrier or, if insured separately, with the insurance company.

UNPACKING AND SETTING UP THE SYSTEM

1 Cut and remove the binding straps.

2 Remove the outer sleeve and rails from the shipping

carton (see Figure 1-2 for packing configuration).

3 Remove the accessory box, foam inserts, and

footswitch. Inspect for signs of damage.

4 Carefully tip the shipping carton so as to place the

system in an upright position .

END USER LICENSE AGREEMENT: This product contains software licensed from Microsoft Corporation.

5 Roll the system out of the container, remove the

antistatic cover, and inspect the system for signs of shipping damage.

6 Unwrap the footswitch and plug it into the

appropriate connector on the rear panel.

7 Release the tray arm and pull it out of the storage

position. Remove the instrument tray and remote control from the accessory box. Open the remote control back cover and install the batteries.

8 Snap the instrument tray into position on the tray

arm. Place the remote control in the recessed area of the instrument tray.

9 Release the 115 VAC power cord from the Rear

Panel and plug into a functioning 115 VAC receptacle but do not turn on the AC Power Switch or the Stand-by Switch until instructed to do so.

10 Perform the STTL Service Test Procedure.

1-2 906-2000-501

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Figure 1-2 STTL Packing Configuration

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SERIES 20000

TABLE 1-1. SERIES 20000™* LEGACY® PERFORMANCE SPECIFICATIONS

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LEGACY

ELECTRICAL

The system will auto-select between the following voltage: 100 Vac nominal ( 88-110 Vac), 47-63 Hz, single ø 120 Vac nominal (102-132 Vac), 47-63 Hz, single ø 220 Vac nominal (176-242 Vac), 47-63 Hz, single ø 240 Vac nominal (204-270 Vac), 47-63 Hz, single ø

Maximum power ........................................ ≤ 523 Watts

LEAKAGE CURRENT

< 100 µA @120 VAC, per NFPA99 < 500 µA @264 VAC, per IEC-60601-1, Edition 2 (includes power cord)

(includes power cord)

VOLTAGE NO-LOAD

+5V ............................................................. +5.10 ± .05

+12V ......................................................... +12.00 ± .12

+15V ......................................................... +15.00 ± .15

-15V ........................................................... -15.00 ± .15

+24V ......................................................... +24.00 ± .24

+85V ......................................................... +85.00 ± .85

VOLTAGE UNDER LOAD

+5V ............................................................. +5.10 ± .10

+12V ......................................................... +12.00 ± .20

+15V ......................................................... +15.00 ± .15

-15V ........................................................... -15.00 ± .20

+24V ......................................................... +24.00 ± .24

+85V ......................................................... +85.00 ± .85

IV POLE

Bottle height at retraction ............................. .2 cm ± 1

Bottle height when fully raised (without IV

pole extension) ............................................ 78 cm ± 1

Bottle height at power-up (default) .............. 65 cm ± 1

IV Pole Speed........................................ 10 ± 2 cm/sec

VACUUM ACCURACY

ACTUAL VACUUM DISPLAYED VACUUM

0 mmHg.................................................... 0 ± 2 mmHg

50 mmHg ............................................. 50 ± 2.5 mmHg

200 mmHg.......................................... 200 ± 10 mmHg

400 mmHg.......................................... 400 ± 20 mmHg

500 mmHg.......................................... 500 ± 25 mmHg

VACUUM OCCLUSION

VACUUM SETTING OCCLUSION RANGE

5 mmHg @ 5 cc/min................................. 0-10 mmHg

22 mmHg @ 25 cc/min............................. 7-27 mmHg

48 mmHg @ 25 cc/min........................... 43-53 mmHg

66 mmHg @ 25 cc/min........................... 61-71 mmHg

102 mmHg @ 25 cc/min....................... 92-112 mmHg

400 mmHg @ 25 cc/min..................... 385-415 mmHg

RESIDUAL VACUUM

With irrigation line occluded at the white HP connection and waiting 3 seconds after the footswitch is released. VACUUM METER READING

46 mmHg .......................................... 5 mmHg vacuum

400 mmHg...................................... 15 mmHg vacuum

DIMENSIONS

Height .............................................55 inches (138 cm)

Width ................................................20 inches (51 cm)

Depth................................................23 inches (57 cm)

WEIGHT

Unpacked ...................................... 200 pounds (90 kg)

Packed......................................... 275 pounds (125 kg)

ENVIRONMENTAL LIMITATIONS

Altitude

Operating............................8,000 feet (2438 meters)

Non-Operating............... 40,000 feet (12,191 meters)

Temperature

Operating...................... 10°C to 35°C (50°F to 95°F)

Non-Operating.......... -40°C to 75°C (-40°F to 167°F)

Humidity

Operating...................10% to 95% w/o condensation

Non-Operating........... 10% to 95% w/o condensation

ANTERIOR VIT PUMP

Pressure @ 10 CPM ...................... ≥30 psi (pressure)

Vacuum @ 10 CPM.................. ≥450 mmHg (vacuum)

Cut Rate .............................................. 10 to 400 CPM

ULTRASONIC HANDPIECE STROKE

U/S 375-40 ......................... 3.0 to 4.0 mils (maximum)

Hydrosonic.............................................. 1.0 to 1.6mils

NeoSonix™* .............................................. ± 2 degrees

COAGULATION

Frequency............................................... 300-400 KHz

Power @ 100% power using a

75 ohm non-inductive load ...................... 20 ± .5 watts

VIDEO

• 640 x 480 pixel VGA

• 256 Color Active Matrix LCD Screen

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LEGACY

Coagulation (Coag)

Custom

Hydrosonics (Hydro) (V3.01 and below)

Advantec (V3.12 and above)

Type B equipment, providing a particular degree of protection, i.e., basic insulation. (Phaco/Fragmentation) Protection class I.

Type BF equipment, providing both the attributes of basic insulation and "floated" isolation. (Bipolar Coagulation)

Dangerous Voltage

CAUTION: Consult accompanying documents.

Equipotential ground connection.

Irrigation/Aspiration (I/A)

Alternating current.

Stand-by state for a part of equipment.

ON (POWER)

OFF (POWER)

Footswitch.

Irrigation (Irr)

Ultrasonic (U/S)

Vitrectomy (Vit)

Figure 1-3 ICONS USED WITH THE STTL - Icons identifying modes, functions, etc., that are used with the

STTL are identified in this chart.

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CAUTERY, DIATHERMY, COAGULATION

In the past, some of Alcon Surgical’s products have referred to the feature “Cautery.” The STTL uses the word “Coagulation” in place of Cautery, based on the following definitions:

• Cautery - cutting and burning method associated with two hot wires passing a current between them; cutting away skin; halting bleeding.

• Diathermy - introducing an electric field into a body part to produce heat.

• Coagulation - an isolated bipolar current supplied to conductors (e.g. forceps). Current passes between these electrodes, halting bleeding. (Abbreviated “Coag” in some of the text of this operator’s manual.)

ELECTRONIC SYSTEM

The STTL is a multi microprocessor-controlled system with associated memory and input/output (I/O) circuitry. The system communicates via the Front Panel. An automatic self-test is initiated each time the system is turned on. This test performs a variety of checks including the following:

• Tests the Central Processing Unit (CPU)

• Tests the RAM and ROM memory, and the I/O circuits

• Initializes the system

• Defaults to: IRR: Footswitch mode (V3.01 and below) Advantec: Visco mode (V3.12 and above)

When the system successfully completes the self-test, it automatically goes into the default mode. If the system fails the self-test, an error message is displayed. Voice confirmation verifies all mode selections.

POWER

THROUGH

75 OHM

LOAD

(WATTS)

00 10 20 30 40 50 60 70 80 90 100

% DISPLAYED VOLTAGE

Figure 1-4 COAGULATION POWER THROUGH 75

OHM LOAD

NOTE: Unloaded output voltage is roughly 145V

peak to peak.

100% VOLTAGE

POWER (WATTS)

75% VOLTAGE

50% VOLTAGE

25% VOLTAGE

SYSTEM DESIGN

Front Panel

The front control panel (see Figure 2-1) has a flat, non-glare surface located on the front of the main chassis. It contains a graphics display, a touch screen, up and down arrows, mode buttons, bottle height, U/S time displays, and a Test button.

The buttons are located both on the sides and on the bottom of the screen. There are two basic push-type buttons on the front panel: (1) Those that control up and down arrows: press and hold until the adjustment is complete and (2) Those that are momentary buttons: a single push-and-release activates the function. The momentary buttons and the up/down arrows emit an audible signal to indicate key activation.

Standby Power Switch - This is a two-position, rocker-type switch used to turn secondary power (part of equipment) ON and OFF. It is located to the right of the speaker on the front of the machine. This

switch is used to turn the system ON/OFF between surgeries.

10 100 1000

LOAD (LOG OHMS)

Figure 1-5 COAGULATION POWER VS. LOAD

IMPEDANCE

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9. GRAPHICS DISPLAY AND TOUCH SCREEN

8. REMOTE CONTROL SENSOR

7. BOTTLE HEIGHT DISPLAY AND ADJUSTMENT ARROWS

3. PARAMETER ADJUSTMENT ARROWS

6. U/S TIME DISPLAY

AND RESET BUTTON

LEGACY

Not Tuned

U/S Power

Vac Level

Phaco

AdvanTec

DR. ALCON

StdCas

mmHg

Pulse

U/S

BiModal

A.P. 0%P.E. L.

375-40 kHz

Actual

Burst

Vit

I/A

Panel

Surgeon

Asp Rate

cc/min

Max Limit

Pulse Rate

pps

Max Limit

Memory

Coag

Custom

3. PARAMETER ADJUSTMENT ARROWS

Not Primed

Vent Rmt Bat LoReflux Occlusion

U/S: Pulse

Max Limit

Irr

5. TEST BUTTON

Priming/Tuning/Charging Status

Status Window

Actual Display Bar and Actual Value

Primary Parameter #1

Primary Parameter #2

Cassette Status and Cassette Type

Not Primed

Vent Rmt Bat LoReflux Occlusion

Not Tuned

U/S: Pulse

U/S Power

Max Limit

Vac Level

Max Limit

StdCas

Doctor Name and Memory Selected

DR. ALCON

375-40 kHz

Actual

mmHg

Actual

0 0

2. PRIMARY MODE SELECTION BUTTONS

1. STANDBY POWER SWITCH

4. SPEAKER

Handpiece ID and Handpiece Icon

Footswitch Status

A.P. 0%P.E.L.

cc/min

pps

Panel

Surgeon

Asp Rate

Max Limit

Pulse Rate

Max Limit

Control Keys

Secondary Parameter #1

Secondary Parameter #2

Submode Keys

Phaco

Pulse

BiModal

Burst

Memory

Memory Key

Touch Keys/Icons

Mode Keys

AdvanTec

Irr

U/S

I/A

Vit

Coag

Custom

Figure 1-6 FRONT CONTROL PANEL (Display for software versions 3.12 and above shown)

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2. Primary Mode Selection Buttons - These seven push-buttons allow selection of operating modes. They are single-condition (press to turn on) and also allow the operator to scroll through the sub modes. (Access to modes is also available by pressing the associated symbol on the touch screen, or on the remote control, or by activating the heel switch on the footswitch if programmed.)

• IRR - Used to select one of three Irrigation

submodes (footswitch, free flow, and continuous irrigation). Irrigation: Footswitch is the default submode.

• HYDRO (V3.01 and below) - Used to activate

the HydroSonics™* mode which allows the surgeon to use the Auto HydroSonics™* handpiece.

• AdvanTec (V3.12 and above) – Used to activate

the NeoSonix™* or 375/40 handpiece to perform a phacoemulsification procedure. There are four submodes within the mode: Visco, Phaco, Pulse, and Burst. Phaco is the default submode.

• U/S - Used to activate the 375/40 handpiece

while performing phacoemulsification procedures. There are four submodes of the U/S mode: Phaco, Pulse, BiModal, and Burst. US: Phaco is the default submode.

• I/A - Used to activate the Irrigation/Aspiration

system. There are three submodes of the I/A mode: Min, Max, and CapVac. I/A Max is the default submode.

• VIT - Used to activate the Vitrectomy mode,

which operates the ATIOP handpiece. There are two sub modes: ATIOP and I/A Cutter. VIT: ATIOP is the default submode.

• COAG - Used to activate the Coagulation mode

which uses bipolar coagulation to drive the Alcon brush and forceps.

• CUSTOM - Used to program the following

operational settings: program, sound, voice, language, footswitch and remote.

Parameter Adjustment Arrows - Used to adjust

3. primary and secondary parameters.

Speaker - Emits audible tones from below the movable display screen.

Test Button - Used to access various functions such as Priming, Tuning, Charging, Fill, and Clean. The TEST key is not available when in the Custom and Coag modes.

U/S Time Display and Reset Button - Records the

6. cumulative amount of time U/S power is applied during surgery. Time is given in minutes, to one decimal place, to a maximum of 30 minutes. U/S power elapsed time is retained until the Reset button is pressed, a new U/S or NeoSonix™* handpiece is plugged in, or until the system is turned off. The U/S Time Reset Button resets U/S Time (displayed in the U/S Time Display) and Average U/S Power (displayed in the Status window) to zero.

Bottle Height Display and Adjustment Arrows -

7. Display the height of the irrigation bottle in the display window; bottle height is measured from the drip chamber to the level of the patient's eye.

Below the display are up and down arrows which raise and lower the irrigation bottle, allowing irrigation pressure to be adjusted. Adjustments can also be made from the left and right dual pivot switches on the footswitch, as well as from the remote control. The irrigation pole is positioned at 65 cm±1 at power up.

NOTE: Bottle height is measured from the center of drip chamber to the patient's eye level. The patient's eye level is normally set to be even with the center of the cassette mechanism. In those cases where the patient's eye level is required to be different from that of the cassette mechanism, a patient eye level adjustment must be registered in the Custom mode.

Remote Control Sensor - Receives remote control

8. inputs. It is located at the top left of the unit above the bottle height display; no operator interface is required.

Graphics Display and Touch Screen - This display screen serves as the operator's control center. The system operating status is displayed here, and its touch screen is used to input operator commands (see Figure 2-2).

Mode Keys, Touch Keys/Icons, Submode Keys Displays the active mode and submode (if applicable). When activated, continuous irrigation flashes above the Irr key/icon. To select mode/ submode, press the desired icon.

Primary Parameters - Displays up to two primary parameters for a selected mode (along with the graphical representation of the data), including maximum limits. When primary parameters are not displayed this area is used for user prompts, user

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display, and user data input. Maximum limits can be adjusted for each parameter by using the up/down arrows.

Secondary Parameters - Displays up to four additional parameters for a selected mode, along with the maximum limit value. Maximum limits can be adjusted for each parameter by using the up/down arrows.

Actual Display Bar and Actual Value - Linear values in selected modes, controlled with the footpedal, are represented here with a sliding bar display and numeric readout.

Status Window - Alerts the operator to the system's normal operating status:

• Modes and Submodes (if applicable) - Blue background/white text displayed during normal operation unless other information needs to be presented.

• General Messages - Text may be displayed to signify that a normal operation, or step in a sequence, is being carried out. For example, the routine steps in the priming/tuning sequence (e.g., “Vacuum Check”).

• Faults - Displayed on a red background to signify the most critical of conditions. The system shuts down and remains inoperable until the fault is corrected.

• Errors - These are displayed on a yellow background to signify a condition which must be given attention, such as “Vacuum Reading Error” or other hardware failures. Errors must be acknowledged by the user by pressing a Continue key. Operation of the machine may continue in the presence of and/or after the acknowledgment of specific error conditions.

• Advisories - These are displayed on a green background to signify a specific condition which requires operator intervention, such as “Please insert cassette.”

• Handpiece Identification - These are displayed to signify the type of U/S handpiece installed, such as a "375-40."

• Kelman

Steerable I/A Identification - This will display Steerable I/A if the Steerable I/A system is installed and selected.

Each word illuminates in the text window in a specific color:

• Vent - Appears in fuchsia when the venting system opens and the footpedal goes from position 2 to position 1.

• Reflux - Appears in red when the footswitch reflux function is operational.

• Occlusion - Appears in black when the aspiration line becomes occluded, the system has reached the preset vacuum limit, and the pump stops.

• Cassette Type - Indicates active cassette ("Std

Cas, Max Vac

, Attache") in white on black, as

long as a valid cassette is inserted.

• Bottle Height Offset – Numerical value in centimeters which takes into account the offset due to presence of I.V. pole extender and patient eye level located above or below tray level.

• Rmt Bat Lo - Appears in white on black when remote control battery is low.

• A.P. % - Average U/S Power is calculated from the average U/S power that was applied over time, based on instantaneous power levels. The average power accounts for varying levels of stroke as well as the off time between the power pulses for the Visco, Pulse, and Burst submodes. Average U/S Power is reset simultaneously with the U/S Time display.

Priming/Tuning/Charging - “Not Primed” is backlit in red when the system turns on. Upon successful completion of priming, “Primed” is backlit in green. “Not Tuned” is backlit in red when the system is turned on. Upon successful completion of tuning, “Tuned” is backlit in green (in AdvanTec and U/S modes). If the Steerable I/A option is installed and selected, "Not Charged" is backlit in red when the system is turned on. Upon successful charging of the Steerable I/A system, "Charged" is backlit in green.

Cassette Status and Cassette Type - Icon appears when cassette insertion is not detected. Upon insertion icon disappears and cassette type is displayed in the Status Window.

Doctor Name and Memory Selected - Current doctor’s memory & memory number selected. Selection made by pressing the Memory Key.

Handpiece ID and Handpiece Icon - The handpiece ID is displayed in the Status Window to identify the type of U/S handpiece installed. Its icon appears when a handpiece is not connected, not connected properly, or there is a handpiece identification error (in AdvanTec and U/S modes).

Footswitch Indicator - Displays the footpedal position (backlit numbers from zero to three) in different colors; also indicates when the reflux and other footswitch functions are activated.

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Control Keys - Indicates the type of control of Aspiration Flow Rate, Vacuum Limits, U/S Burst Width and Off Time, and U/S Power Level. The surgeon can toggle between linear control of parameters via the footswitch (Surgeon, SrgAsp, SrgVac, Linear or Fixed) and the presets of the front panel (Panel).

Memory Key - Used to recall preprogrammed settings. When the memory key (or heel switch of the

Accurus

/Legacy® footswitch, if installed and

programmed to do so) is pressed, a memory menu temporarily appears over the secondary parameters window. Four programmed memory selections, plus a default setting selection, are available. The currently selected doctor name and memory number is displayed at the top of the screen.

Cassette Housing

The cassette housing is located on the upper left side of the system (see Figure 1-7). Two factors contribute to fast and easy installation of the cassette: the cassette housing contains all the connections required for the disposable fluidics Cassette Pak set, and the cassette was designed with an auto-load feature.

Connector Panel

The Connector Panel is located to the right of the cassette housing (see Figure 1-7). The following connections are provided:

• Two self-locking “smart” electrical connections on systems with software V3.01 and below. On V3.12 and above the lower connection is capped off. The connector is active and can be used as a troubleshooting tool under service supervision. To gain access to the connector pry the cap away using a small screwdriver.

• One pneumatic male luer connector for the Steerable I/A system (if installed).

• Two receptacles for bipolar coagulation handpieces to accommodate dual safety banana-type connectors (Coag)

• One female luer lock pneumatic connection for the ATIOP (Vit) and the HydroSonics™* (V3.01 and lower) handpieces.

Additionally, there is one unlabeled connector for future expansion. Colors and symbols near the connectors facilitate handpiece identification.

Rear Panel

The rear panel (see Figure 1-8) contains various connectors and outlets used for interconnections and power input. A floppy disk drive, located on the connector panel, allows the system to be upgraded.

Power Supply Panel - located on the bottom right of

1. the instrument.

• AC power input - connects to electrical outlet in

the wall.

• Main power switch - connects AC power to

power supply. This switch is used for overnight storage of the system.

• Fuse box - holds two fuses. Refer to label on

back of system to identify size and type.

Rear Connector Panel - located near middle of the

2. instrument.

• Floppy Disk Slot.

• Parallel - 25-pin D connector port.

• Serial 1 and 2 - 9-pin D connector ports.

• PH1 and 2.

Footswitch Connector - For connecting either the

Series 20000™*, Accurus®/Legacy®, or ATFSLegacy® footswitch to the unit.

Footswitch bracket - Used to hold the footswitch when not in use. Located on the rear panel, to the left of the cord wrap.

Cord Wrap - Used to store both the footswitch cord and the power supply cord. Located on the far right

HUB ROLLER

LATCHING

MECHANISM

CASSETTE

HOUSING

U/S

Str I/A

Coag

Vit

CONNECTOR PANEL

STEERABLE I/A CONNECTOR IS OPTIONAL

of the rear panel, directly above the power supply.

Figure 1-7 CASSETTE HOUSING AND

CONNECTOR PANEL

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Other Features

Tiltable, Rotatable Front Panel - Allows easy maneuverability during setup and surgery.

Tray Assembly - Provides a movable instrument tray

7A.

within the sterile field. There is a curved metal rod on the tray arm for a sterile bag pouch. The tray is capable of accommodating a variety of positions in the operating room environment: right, left, front and rear of the surgeon as well as the front of the bed.

Autoclavable Instrument Tray - Fits over the tray

7B.

assembly. It is slotted in order to hold six handpieces and the remote control.

Handles (2) - One handle is located on the front and

8. another is located on the back of the unit. Handles should always be used to move the unit. For greater safety and control, the unit should be pulled, not pushed.

AUTOCLAVABLE INSTRUMENT TRAY (7B)

9. Storage Drawer - Located on the right side of the unit, it can be used to store handpieces and accessories.

Locking Wheel Mechanism - Locks are located on

10. the two front wheels only. The wheels should always be locked when the unit is in use, and unlocked when being moved.

IV Pole - The bottle of irrigating fluid is hung from

11. the hook on top of this pole. Used to raise and lower the bottle height.

Fan Filter - Located underneath unit, the fan filter

12. removes particles from incoming air used for cooling components.

Equipotential Ground Connector - For Service

13. personnel use.

TILTABLE, ROTATABLE FRONT PANEL (6)

I/V POLE (11)

TRAY ASSEMBLY (7A)

STORAGE DRAWER (9)

FOOTSWITCH BRACKET (4)

LOCKING WHEEL MECHANISM (10)

FAN FILTER (12)

Figure 1-8 SERIES 20000™* REAR VIEW

EQUIPOTENTIAL GROUND CONNECTOR (13)

REAR HANDLE (8)

REAR CONNECTOR PANEL (2)

CORD WRAP (5)

POWER SUPPLY PANEL (1)

FOOTSWITCH CONNECTOR (3)

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Page 20

Audible Tones

Ten different and clearly distinguishable audible frequencies, in conjunction with multiple tones, are produced by the STTL.

TONE TYPE

VACUUM TONE CONTINUOUS WHEN ASPIRATION ACTIVE COAGULATION CONTINUOUS WHEN COAGULATION ACTIVE

REFLUX CONTINUOUS WHEN REFLUX ACTIVE

ASPIRATION OCCLUSION INTERMITTENT SINGLE BEEP WHEN OCCLUDE DURING ASPIRATION ONLY

U/S OCCLUSION INTERMITTENT DOUBLE BEEP WHEN OCCLUDE DURING U/S

FTSW. IRRIGATION TONE INTERMITTENT

FRONT PANEL SWITCH ACTIVATION INTERMITTENT

CONTINUOUS IRRIGATION ONE BEEP FOR ACTIVATION, TWO FOR DEACTIVATION

FAULT BELL CHIME

CASSETTE NOT DETECTED SHORT WHISTLE

Table 1-2 AUDIBLE TONES

SERIES 20000

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LEGACY

REMOTE CONTROL

The Series 20000™* remote control (see Figure 1-9) is wireless and can, therefore, be used in one of three ways: It can be laid into the articulated arm and tray assembly and operated through the sterile drape supplied in the disposable pak. This offers the Scrub Nurse or assistant access to the controls from the sterile field. A sterile, sealed pouch (available in the remote control aseptic transfer packaging) can also be utilized to maintain the sterile field if the remote is used in a hand-held manner. The circulator could also operate the remote in a nonsterile manner. Programmability and custom user

setup features are functions which are not accessible from the remote control.

The error message, “RMT BAT LO” is displayed in the text window on the front panel when the remote batteries are low. (The battery compartment on the back holds four AA batteries; to replace batteries, loosen the captive screw on the compartment door with a standard screwdriver.)

The controls on the remote control have been arranged to approximate the respective controls on the console’s front panel. The Test button has a raised area around it; this differentiates it from the other buttons in order to ensure that the test function is not accidentally actuated. All controls are backlit by heat actuation; i.e., illumination in low ambient light is activated when the sensor detects heat from the hand.

On systems with software V3.01 and below: There are three inactive keys for future expansion: one marked SCROLL, one marked ENTER, and one undesignated.

On systems with software V3.12 and above: The Forward and Reverse buttons functionality can be customized using the Custom Footswitch screen.

The remote control can be configured to operate on one of four channels (A, B, C, or D). This feature allows four remote controls to independently control four systems operating in the same room or area. Remote controls are factory preset to channel A. To change channels, access the switch located in the battery compartment (see Figure 1-10). For proper remote operation, the system must be set to the same channel as the remote. Once the correct channel is selected on the system, no other steps are needed to save it into memory.

To ensure proper operation when two or more remote controls are being used in the same room or area, adjust each system including remote control to separate channels.

NOTE: Label the remote controls and the units, if necessary.

CAUTION

Do not sterilize the remote control as it will damage the unit.

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IR Transmitter

Photo Sensor



SURGICAL

Secondary Parameter Adjustment Keys

Custom (Program / Exit / Stop)

Memory

Bottle Height Adjustment Arrows

TTLE HEIG

Forward

Primary Parameter Adjustment Keys

Primary Mode Keys

Toggle between secondary parameters in AdvanTec Mode

Reverse

Heat Sensor (hand proximity sensor)

Test

Control Mode (Surgeon / Panel / SrgAsp / SrgVac)

Figure 1-9 REMOTE CONTROL (Remote Control for software versions 3.12 and above shown)

O N

1 2

Figure 1-10 REMOTE CONTROL SWITCHES

O N

Channel A

Channel B

O N

Channel C

Channel D

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MODES AND FUNCTIONS

The STTL has seven basic operational modes or functions, some with submodes (see Figure 1.11). Each allows for the appropriate adjustment of the power, aspiration, and vacuum settings. These settings can be put into one of 96 (V3.01 and below) or 384 (V3.12 and above) memory programs and, consequently, be available for future use without having to re-program the instrument.

The operating modes are selectable from the unit’s front panel controls or from the remote control unit. The functions within an operating mode are controlled by the operating position of the footpedal. Mode changes will result in voice confirmation. (The user has the ability to turn this feature off via the Custom menus.) An audible beeper-tone is generated to indicate a change in the operating mode and to alert the operator of certain conditions such as an occluded line. Additionally, a varied pitch tone is generated to audibly indicate vacuum levels; the pitch increases as the vacuum level increases. The volume of the audible variable-pitch tone is adjustable via the Custom menus.

the front panel settings are controlling the system the word Panel is illuminated; if the footswitch is controlling the system the word Surgeon, Srg Asp, or Srg Vac is illuminated.

Coagulation during test states, except for tuning, is available in Panel control modality.

When a mode button is pressed, the symbol becomes animated and the selected sub mode is highlighted. The titles of the selected mode and submode are displayed in the text window.

The following sections provide an overview of each mode and, where applicable, the differences between operating in the various control modes.

Irrigation (Irr) Mode

Irrigation operates on a gravity-feed principle from the IV bottle, through the cassette irrigation valve to handpiece. The irrigation valve is normally closed when cassette is inserted. Bottle height is measured from the patient's eye to mid-drip chamber.

The operating mode/function is displayed in the mode display window. The primary modes of operation are Irrigation (IRR), Advantec (V3.12 and above) HydroSonics™* (V3.01 and below), Ultrasonics (U/S), Irrigation/Aspiration (I/A), Vitrectomy (Vit), and Coagulation (Coag). Preset (default) operating parameters for the selected mode are programmed into the system, or new operating parameters can be set by using the front panel or remote.

Depending on the operating mode, the system can be set up to automatically operate at the preset limits displayed on the front panel displays, or to provide linear control of one of the operating parameters from the footswitch. The controlling factor is determined by the control mode switches (Panel/Surgeon/Srg Asp/Srg Vac). In general, if

Legacy

Modes and Submodes

Irr CustomCoagVit

Irrigation

• FootSw

• FreeFlow

• Cont Irr

Figure 1-11 MODES AND SUBMODES

(V3.12 and above)



Ultrasonic and NeoSoniX®

• Visco

• Phaco

• Pulse

• Burst

Hydro

(V3.01 and above) 

Ultrasonic

• Phaco

• Pulse

• BiModal

• Burst

Irrigation and Aspiration

• Min

• Max

• Cap Vac

Irrigation pressure is increased or decreased by raising or lowering the irrigation bottle. Default height is 65 cm above the tray; maximum bottle height of 78 cm (above the tray) of BSS

results in maximum irrigation pressure. When an IV Pole Extension is installed, the maximum bottle height is 110 cm above the tray. In the event of power loss, bottle position is maintained; however, if the unit is turned off using the Standby switch, the IV Pole is automatically retracted to its storage position.

The Irrigation mode is automatically entered when the system is initially turned on, when self-test has been successfully completed, or when the IRR mode button is pressed (if the machine has been operating in another mode). At any time the Irrigation mode is re-entered the system will default to Irrigation: Footswitch.

I/AU/SAdvanTec

Vitrectomy

• I/A Cut

• ATIOP

Coagulation See Custom

mode later in this section of the manual.

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In the Irrigation mode, Panel and Surgeon functions are not available; therefore, they are not illuminated. Irrigation mode has three sub modes:

• Irrigation: Footswitch - entered when system is turned on (default) or by pressing the IRR mode button when operating in another mode. The mode display window reads Irrigation: FootSwitch. Irrigation is provided in footpedal positions 1, 2, and 3.

• Irrigation: Free Flow - entered by pressing Free Flow icon or irrigation button. The mode display window reads Irrigation: FreeFlow. Free flow irrigation continues until the IRR button is pressed twice to change to Irrigation: Footswitch or until another mode is selected (except when continuous irrigation option is turned on).

• Continuous Irrigation - Continuous Irrigation is available as a floating sub mode for U/S, I/A, and Vit modes to allow for continuous irrigation of the eye during surgery. It maintains irrigation of the anterior chamber independent of footpedal position (i.e., even in position 0). It is described as a floating mode as it can start from Irrigation and go to any allowable mode. Exiting from U/S, I/A, or Vit modes shuts Continuous Irrigation off allowing leak-free exchange of irrigation and aspiration lines to handpieces.

2. When enabled, toggling the footswitch's right horizontal switch in footpedal position 0 opens and closes the irrigation valve to provide continuous irrigation in a similar manner.

Continuous Irrigation is not available in Test, HydroSonics™*, or Coagulation modes.

Providing Access to the Continuous Irrigation Footswitch Feature The Continuous Irrigation Footswitch feature is normally disabled. To access this feature, the user must enter the Custom menu and select the Footswitch menu. The Enable and Disable switches for Continuous Irrigation will be found on the left side of the screen. Continuous Irrigation can be accessed in any of the Custom detent modes. For convenience, this feature can be programmed into a doctor’s memory. This provides only the ability for Continuous Irrigation Footswitch feature to be enabled.

Actual Use of Continuous Irrigation Continuous irrigation cannot turn on automatically even though the Custom Continuous Irrigation Footswitch switch is enabled. It must be invoked by either depressing the Continuous Irrigation sub mode from the front panel or by the footswitch's right horizontal switch.

Continuous Irrigation is activated by one of two methods for U/S, I/A, and Vit modes:

1. Transferring from Continuous Irrigation to another mode. If the system is in Irrigation: Continuous, irrigation will be carried over to the next mode selected unless the new mode does not support it.

Not Primed

Irrigation: FootSwitch

FootSw

Figure 1-12 IRRIGATION MODE (software V3.12

FreeFlow

AdvanTec

Irr U/S I/A Vit Coag Custom

shown)

StdCas

DR. ALCON

Cont Irr

A.P. 0%

Def

Memory

Entering and exiting the Custom mode or the Pop-up memory menu will not affect the status of Continuous Irrigation. The footswitch can toggle the irrigation switch on and off in the Custom mode, though. Changing memories will not affect status of Continuous Irrigation. If a particular memory setting is not footswitch programmed, switching the Continuous Irrigation on and off can only be done via the front panel.

An audio beep confirmation is heard each time the Continuous Irrigation valve is opened, and two beeps when the valve is closed. The front panel also displays activation of Continuous Irrigation above the Irrigation mode symbol.

When exiting from U/S, I/A, or Vit modes the system automatically shuts off Continuous Irrigation regardless of how it was turned on. This allows leak-free exchange of the irrigation and aspiration lines to the handpieces. It can also be shut off by the footswitch's right horizontal switch. Before switching handpieces, it is advised to tap the right horizontal switch or change modes after exiting the eye to prevent excess BSS® sterile irrigating solution from flowing out of the handpieces.

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AdvanT

ec: V

isco

A.P

. 0%

NeoSoniX

Surgeon

MaxVacac

Lin Flow

AdvanTecec

DR.

ALCON

Def

™*

LEGACY

HydroSonics™* (Hydro) Mode (software V3.01 and below)

Because this mode has only one function, pressing the Hydro button puts the unit into the HydroSonics™* mode immediately. The mode display window reads U/S: Hydro. The HydroSonics™* mode allows use of the auto HydroSonics™* handpiece, which allows the surgeon to perform hydrodissection and soften the cataract prior to phaco-emulsification. No aspiration is provided in the HydroSonics™* mode.

Injection Rate and U/S Power are the primary parameters displayed in the HydroSonics™* mode. Pulse Rate is the secondary parameter. It is displayed in the window located in the lower right hand portion of the front panel and is controlled with the arrows to the right of this window. Following are the allowable injection rates (pulses/min.) in the HydroSonics™* mode: 60, 70, 80, 90 and 100.

NOTE: When in HydroSonics™* mode the left Reflux pedal provides pulsed injection only, with no U/S.

• If

Panel Control is selected, pulsed fixed ultrasonic power is delivered in footpedal position 2 at the preset or operator set power level maximum limit. The ultrasonic power maximum limit is initialized to 80% at power up. In footpedal position 3 fixed ultrasonic power and pulsed injection are provided. The injection rate is initialized to 60 pulses/min. at power up.

AdvanTec Mode (software V3.12 and above)

AdvanTec Mode supports the NeoSonix™*, the 375/40, and the Mackool** 375/40 U/S handpieces. When the AdvanTec function is operational, irrigation, aspiration, and ultrasonics are provided by the handpiece. In addition to these, the NeoSonix™* handpiece provides mechanical oscillations. The user has the ability to adjust the aspiration rate, vacuum levels, U/S power and NeoSonix™* parameters, Amplitude and Threshold (if applicable) above or below the preset levels at any time during the surgical procedure via the respective adjustment buttons or the remote control. The

NeoSonix™* parameters become active when the NeoSonix™* handpiece is attached, otherwise they are

grayed out.

Not Primed

AdvanT

Max Limit

120

Max Limit

Irr

Not Tuned

ec: V

isco

U/S Power

Vac Level

Visco

AdvanT

MaxV

Phaco

DR. ALCON

DR.

U/S

ALCON

mmHg

Pulse

Def

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. 0%

NeoSoniX

Actual

I/A

Burst

Vit

Amplitude

NeoSoniX

Threshold

Coag

Asp Rate

Max Limit

Memory

Custom

Panel

Surgeon Lin Flow

cc/mincc/min

• If

Surgeon Control is selected, ultrasonic power varies from 0% at the top of footpedal position 2, to the full preset or operator set power level maximum limit at the bottom of footpedal position 3. The ultrasonic power maximum limit is initialized to 80% at power up. Pulsed injection is added to variable ultrasonic power in footpedal position 3. The injection rate is initialized to 60 pulses/min. at power up.

OFF (position 0)

Figure 1-13 FOOTSWITCH FUNCTIONS -

HydroSonics™*

IRRIGATION (position 1)

PULSED U/S (position 2)

PULSED U/S & PULSED INJECTION (position 3)

Figure 1-14 ADVANTEC VISCO MODE

There are four selectable submodes within AdvanTec mode: Visco, Phaco, Pulse, and Burst; each reached by pressing the appropriate area on the display screen or remote control.

NOTE: If a NeoSonix™*, Mackool**, or 375/40 U/S handpiece is not connected, or is not connected properly, a U/S handpiece symbol blinks in the text window.

U/S power or NeoSonix™* amplitude are increased or decreased via the front panel in increments of 5% from minimum of 0% to a maximum of 100%. Ultrasonic power is controlled by one of two methods: Panel control or Surgeon control.

All AdvanTec submodes provide irrigation in footpedal position 1.

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IRR / ASP / Ultrasonics (position 3; U/S power <NeoSoniX threshold)

IRR / ASP / Ultrasonics/NeoSoniX (position 3; U/S power ≥NeoSoniX threshold)

IRR / Aspiration (position 2)

OFF (position 0)

Irrigation (position 1)

IRR / ASP / Ultrasonics (position 3; NeoSoniX threshold >U/S power limit or NeoSonix amplitude = 0)

IRR / Aspiration (position 2)

OFF (position 0)

Irrigation (position 1)

IRR / ASP / NeoSoniX (position 3; NeoSoniX threshold = 0, U/S power = 0)

IRR / Aspiration (position 2)

OFF (position 0)

Irrigation (position 1)

™*

LEGACY

If the Lin Flow button is not highlighted, footpedal position 2 provides irrigation and fixed aspiration according to the flow rate selected. When Lin Flow button is highlighted, the console will announce "Linear Flow." When the button is pressed again (Lin Flow not highlighted), the console will announce "Fixed Flow." If Lin Flow is highlighted, footpedal position 2 provides irrigation and aspiration proportional to the displacement of footpedal throughout position 2. It starts at 0 cc/min at the top of the position 2 and reaches maximum value as set on the screen at the bottom of position 2.

Footpedal position 3 provides irrigation, fixed aspiration flow rate as set on the main screen or on the Custom/ Special Functions/Aspiration screen if defined and different from the flow rate set on the main screen.

• If U/S Panel Control (including linear or fixed flow in footpedal position 2) is selected, ultrasound power will be constant throughout the footpedal position 3 and equal to the power setting as set on the screen. To increase or decrease power, the arrow buttons are activated. The default maximum U/S power level setting is 60% except for AdvanTec Visco submode where it is 0%.

• If U/S Surgeon Control (including linear or fixed flow in footpedal position 2) is selected, the ultrasound power display indicates the maximum power available. To increase ultrasonic power the surgeon must further depress the footpedal into position 3. Power starts at 0% and increases until power reaches the displayed maximum setting. To change the maximum available power, activate the up or down arrow which will raise or lower the maximum power available. The default maximum U/S power level setting is 60%, except for AdvanTec Visco submode where it is 0%.

NeoSonix™* oscillations are activated when the ultrasound power reaches or exceeds the NeoSonix™* threshold displayed on the screen. At that point oscillations are activated according to the NeoSonix™* amplitude displayed on the screen. There is no proportional Surgeon control of the NeoSonix™* amplitude. In footpedal position 1-2 the amplitude maximum value is displayed. In footpedal position 3 the actual value of the amplitude is displayed, that is, 0% is displayed while the ultrasound power is less than the NeoSonix™* threshold, and the maximum amplitude value is displayed when the ultrasound power is equal to or exceeds the threshold.

Figure 1-15 FOOTSWITCH FUNCTIONS - AdvanTec

AdvanTec Visco The AdvanTec Visco submode is automatically entered when system power is initially turned ON and the self test is successfully passed, or when the AdvanTec button is pressed, “AdvanTec: Visco” is displayed, and the NeoSonix™* or 375/40 U/S handpiece is activated.

This submode is designed to simplify creation of working space in the anterior chamber filled with a viscoelastic material prior to engaging ultrasound. Viscoelastic material can occlude the aspiration port and/or reduce wound leakage. Either of the events, and especially a combination of both, can lead to rapid and significant increase of temperature in the anterior chamber, especially at the incision site when ultrasound is activated. To minimize the possibility of thermal injury to eye tissues it is therefore recommended to partially aspirate viscoelastic material from the anterior chamber.

The AdvanTec Visco submode contains default values of 120 mm Hg vacuum limit, and 0% of ultrasound power and NeoSonix™* amplitude. If a user finds it helpful to add a small amount of ultrasound or NeoSonix™* action to facilitate partial removal of viscoelastic, the ultrasound and/or NeoSonix™* will be available pulsed at 8 pulses per second, 25% time on, 75% time off. Maximum ultrasound power is limited to 50% in this submode.

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LEGACY

U/S Power Level and Vac Level are the primary parameters displayed; Aspiration Flow Rate is the secondary parameter displayed. If NeoSonix™* handpiece is connected, NeoSonix™* parameters, Amplitude, and Threshold are displayed as an additional secondary parameters pair.

AdvanTec Phaco Press the AdvanTec button, then select Phaco submode. AdvanTec: Phaco is displayed. This submode provides continuous ultrasound and NeoSonix™* oscillations, if applicable.

U/S Power Level and Vac Level are the primary parameters displayed, Aspiration Flow Rate is the secondary parameter displayed. If NeoSonix™* handpiece is connected, NeoSonix™* parameters, Amplitude, and Threshold are displayed as an additional pair of secondary parameters.

AdvanTec Pulse Press the AdvanTec button, then select Pulse submode. AdvanTec: Pulse is displayed. When operating in this mode, U/S power and NeoSonix™* oscillations are turned on and off in a 50% duty cycle (50% on time, 50% off time) with a frequency determined by the pulse rate setting.

U/S Power Level and Vac Level are the primary parameters displayed, Aspiration Flow Rate and Pulse Rate are the secondary parameters displayed. If NeoSonix™* handpiece is connected, NeoSonix™* parameters, Amplitude, and Threshold are displayed as an additional secondary parameters pair.

AdvanTec Burst Press the AdvanTec button, then select AdvanTec Burst submode on the screen. AdvanTec Burst is displayed. The AdvanTec Burst function allows bursts of ultrasound and/or NeoSonix™* oscillations, of preset or operator set duration, to occur either singly, or with a linearlycontrolled frequency.

AdvanTec Burst differs from other AdvanTec submodes in that the U/S power is fixed at the preset or operator set limit, throughout footpedal position 3. This is true for both Panel and Surgeon control in AdvanTec Burst.

• AdvanTec Burst Panel Control provides a single burst of ultrasonic power and/or NeoSonix™* oscillations upon entrance to footpedal position 3.

NeoSonix™* oscillations will be delivered if the NeoSonix™* handpiece is used and the ultrasound

power setting is equal to or exceeds the threshold.

- The duration of this burst is determined by the

preset or operator set limit.

- When a single burst is complete, the user must

lift the footpedal and re-enter position 3 to get each additional burst.

• AdvanTec Burst Surgeon Control provides repeated bursts of ultrasonic power and/or NeoSonix™* oscillations in footpedal position 3.

- The duration of each burst is determined by the

preset or operator set limit.

- The time between each burst, during which no U/S

power or NeoSonix™* oscillations are applied, varies linearly from the 2.5 second maximum at the top of footpedal position 3, to the 0 second (continuous) minimum at the bottom of position 3.

U/S Power Level and Vac Level are the primary parameters displayed, Aspiration Flow Rate and Burst Width are the secondary parameters displayed. If a NeoSonix™* handpiece is connected, then NeoSonix™* parameters, Amplitude, and Threshold are displayed as an additional secondary parameters pair.

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™*

LEGACY

Ultrasound (U/S) Mode

There are four selectable sub-modes within U/S Mode: Phaco, Pulse, BiModal, and Burst; each reached by pressing the appropriate area on the display screen or remote control.

NOTE: The NeoSonix™* handpiece is for systems with software V3.12 and above only. It will not be recognized on systems with lower versions of software.

This mode is designed to use either the 375/40 ultrasonic or NeoSonix™* handpieces. Only ultrasound vibrations will be produced by the NeoSonix™* handpiece in this mode, so operation of the NeoSonix™* handpiece is largely identical to that of the 375/40 ultrasonic handpiece. Therefore, all statements made regarding operation of the 375/40 U/S handpiece in the U/S mode are also applicable to the operation of the NeoSonix™* handpiece in the U/S mode.

NOTE: If a 375/40 U/S, Mackool**, or NeoSonix™* handpiece is not connected, or is not connected properly, a U/S handpiece symbol blinks in the text window.

OFF (position 0)

IRRIGATION (position 1)

or down arrow which will raise or lower the maximum power available. The default maximum U/S power level setting is 60%.

U/S Phaco This is the default function within the U/S Mode. When the U/S button is pressed, “U/S:Phaco” is displayed and the 375/40 U/S handpiece is activated. When the U/S function is operational, irrigation, aspiration, and ultrasonics are provided by the 375/40 U/S handpiece. The user has the ability to adjust the aspiration rate, vacuum levels, and U/S power above or below the preset levels at any time during the surgical procedure via the respective adjustment buttons or the remote control.

• U/S Phaco Panel Control provides irrigation

(footpedal position 1), irrigation/aspiration (footpedal position 2), and irrigation/aspiration/fixed ultrasonics simultaneously (footpedal position 3).

•

U/S Phaco Surgeon Control allows the user to linearly control the ultrasonic power via the footpedal in position 3 from 0% power up to whatever has been set as the maximum ultrasonic power on the console.

U/S Power Level and Vac Level are the primary parameters displayed; Aspiration Flow Rate is the secondary parameter displayed.

IRR/ASPIRATION (position 2)

IRR/ASP/ULTRASONICS (position 3)

Figure 1-16 FOOTSWITCH FUNCTIONS - U/S

U/S power is increased or decreased via the front panel in increments of 5% to a maximum of 100%. Ultrasonic power is controlled by one of two methods: either Panel control or Surgeon control.

• If Panel Control is selected, the power setting is displayed on the ultrasonic power display. To increase or decrease power, the arrow buttons are activated. Ultrasonic power is initialized to 60% at power up. The selected power is fully activated in footpedal position 3.

• If

Surgeon Control (including Srg Asp and Srg Vac) is selected, the ultrasonic power display indicates the maximum power available. To increase ultrasonic power the surgeon must further depress the footpedal into position 3. Power starts at 0% and increases until power reaches the displayed maximum setting. To change the maximum available power, activate the up

U/S Pulse Press the U/S button, then select Pulse mode. U/S: Pulse is displayed. When operating in this function, U/S power is turned on and off on a 50% duty cycle, with a freequency determined by the pulse rate setting.

• U/S Pulse Panel Control provides irrigation in footpedal position 1, irrigation and aspiration in footpedal position 2, and simultaneous irrigation, aspiration, and fixed pulsed ultrasonics in footpedal position 3. The aspiration rate, vacuum limit, U/S power, and pulse rate are all preset at default values, but can be increased or decreased before or during the procedure via the up and down arrows adjacent to their respective windows on the front panel or remote control.

•

U/S Pulse Surgeon Control performs the same as Panel control plus it provides pulsed U/S power linearly via the footswitch from 0% up to the maximum preset or operator set limit.

U/S Power and Vac Level are the primary parameters displayed; Aspiration Flow Rate and Pulse Rate are the secondary parameters displayed.

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™*

LEGACY

U/S BiModal Press the U/S button, then select U/S BiModal mode on the screen. U/S: BiModal is displayed. The U/S BiModal function allows linear control of aspiration rate or vacuum limit in footpedal position 2, plus linear control of U/S power in position 3.

•

U/S BiModal SrgAsp Control provides irrigation in footpedal position 1, irrigation and linearly controlled aspiration in footpedal position 2, and simultaneous irrigation, fixed aspiration, and linearly controlled U/S power in footpedal position 3.

- In footpedal position 2, the aspiration rate starts at 1 cc/min at the top of the position, and reaches the full preset or operator set flow rate at the end of position 2.

- In footpedal position 3, the full aspiration flow rate is maintained, while U/S power varies from 0% at the top, to the maximum preset or operator set limit at the bottom of the position.

U/S BiModal SrgVac Control is functionally identical

• to U/S BiModal SrgAsp control mode, except that:

- The duration of this burst is determined by the preset or operator set limit.

- When a single burst is complete, the user must lift the footpedal and reenter position 3 in order to get each additional burst.

U/S Burst Surgeon Control provides irrigation

• (footpedal position 1), irrigation/aspiration (footpedal position 2), and repeated bursts of ultrasonic power (footpedal position 3).

- The duration of each burst is determined by the preset or operator set limit.

- The time between each burst, during which no U/S power is applied, varies linearly from the 2.5 second maximum at the top of footpedal position 3, to the 0 second (continuous U/S) minimum at the bottom of position 3.

U/S Power and Vac Level are the primary parameters displayed; Aspiration Flow Rate and Burst Width are the secondary parameters displayed.

- In footpedal position 2, the vacuum limit is varied linearly from 1 mmHg at the top of the position to the preset or operator set limit at the bottom of position 2.

- The aspiration flow rate is fixed, at the preset or operator set limit, in both footpedal position 2 and 3.

U/S Power and Vac Level are the primary parameters displayed; Aspiration Flow rate is the secondary parameter displayed.

U/S Burst Press the U/S button, then select U/S Burst mode on the screen. U/S: Burst is displayed. The U/S Burst function allows bursts of U/S power, of preset or operator set duration, to occur either singly, or with a linearly controlled frequency.

U/S Burst differs from other U/S submodes in that U/S power is fixed, at the preset or operator set limit, throughout footpedal position 3. This is true for both Panel and Surgeon control in U/S Burst.

• U/S Burst Panel Control provides irrigation (footpedal position 1), irrigation/aspiration (footpedal position 2), and a single burst of ultrasonic power upon entrance to footpedal position 3.

Irrigation/Aspiration (I/A) Mode

There are three selectable sub modes within the Irrigation/Aspiration mode: Minimum (I/A Min), Maximum (I/A Max), and Capsule Vacuum (Cap Vac). Each of the selectable functions is reached by pressing the appropriate button. The I/A mode provides gravity-feed irrigation and/or simultaneous peristaltic aspiration. In any of the sub modes under Panel Control, the operator can adjust the preset aspiration and vacuum limits using the adjustment control buttons on the control panel.

OFF (position 0)

IRRIGATION (position 1)

IRR/ASPIRATION (position 2)

IRR/ASPIRATION (position 3)

Figure 1-17 FOOTSWITCH FUNCTIONS - I/A

I/A Max Press the I/A button then select I/A Max on the screen or the remote. I/A: Max is displayed. I/A Max provides irrigation (footpedal position 1) and simultaneous irrigation and aspiration (footpedal positions 2 and 3). The preset vacuum level for I/A Max is 500+ mmHg

(unlimited), and the adjustable range is 0 to 500+mmHg (unlimited).

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™*

LEGACY

• I/A Max Panel Control - I/A Max Panel provides irrigation in footpedal position 1 and simultaneous irrigation and aspiration in footpedal positions 2 and

•

I/A Max Surgeon Control

- Surgeon (Surg) Asp - identical to Panel control except footpedal positions 2 and 3 allow linear control of aspiration flow rate with fixed vacuum limits.

- Surgeon (Surg) Vac - identical to Panel control except footpedal positions 2 and 3 allow linear control of vacuum limits with fixed aspiration flow rate.

Asp Rate and Vac Level are the primary parameters displayed.

I/A Min Press the I/A button then select I/A Min on the screen or the remote. I/A: Min is displayed.

• I/A Min Panel Control - for a low preset vacuum limit of 66 mmHg, and an adjustable range of 0 to 500+ mmHg. The levels manually set by the operator can be easily increased or decreased before or during operation. I/A Min provides irrigation in footpedal position 1 and simultaneous irrigation and aspiration in footpedal positions 2 and 3.

•

I/A Min Surgeon Control

- Surgeon (Surg) Asp - identical to Panel Control

except footpedal positions 2 and 3 allow linear

control of aspiration flow rate with fixed vacuum limits.

- Surgeon (Surg) Vac - identical to Panel Control

except footpedal positions 2 and 3 allow linear

control of vacuum limits with fixed aspiration flow rate.

Cap Vac Press the I/A button, then select the CapVac mode on the screen or the remote control. I/A CapVac is displayed. CapVac provides irrigation and low aspiration rate and vacuum limit, allowing the surgeon to polish the surface of the posterior capsule following the emulsification and removal of the cataractous tissue. The preset vacuum limit is 5mmHg.

Asp Rate and Vac Level are the primary parameters. Only Panel Control is enabled in the CapVac function.

Kelman® Steerable I/A System Option The Kelman® Steerable I/A system consists of a flexible, steerable irrigation/aspiration tip with an accompanying handpiece and drive mechanism. The Steerable I/A system is used in I/A mode to remove cortical material via aspiration while maintaining chamber pressure with irrigation.

The system is used with the infusion sleeve provided in the Legacy® pak. This system provides aspiration and irrigation and the ability to easily, smoothly, and continually adjust the tip in the eye from a straight position to a fully bent position. The ability to steer the tip provides the Surgeon with greater access to all cortical material in the eye. The operator has the ability to steer the tip via the footswitch, and the distal end of the tip will remain in that position until changed by the operator via the footswitch.

The Kelman® Steerable I/A system is an option and must be installed in the Legacy® console. The Steerable I/A system is limited to altitudes up to 6,000 feet (1,828 meters). Once installed, the system must be selected in the Custom mode (see Custom Mode). All functions of the Irrigation/Aspiration (I/A) mode are available when the Steerable I/A system is installed and selected.

Asp Rate and Vac Level are the primary parameters displayed.

between straight and fully bent by pressing the right and left vertical switches on the footswitch. The left vertical switch increases the bend of the tip, while the right vertical switch reduces the bend.

906-2000-501 1-21

The Kelman® Steerable I/A tip is adjusted to any position

Page 30

SERIES 20000

™*

LEGACY

Vitrectomy (Vit) Mode

There are two selectable sub modes within the Vitrectomy (Vit) mode: ATIOP and I/A Cutter. Each is reached by pressing the appropriate mode on the screen, and each utilizes the pneumatically operated ATIOP handpiece. The cutting rate for both sub modes is adjustable from 0 to 400 cuts per minute.

ATIOP This is the default for the VIT mode. Press the VIT mode on the screen or the remote and Vit: ATIOP is displayed.

•

ATIOP Panel - Irrigation is provided in footpedal position 1; irrigation and guillotine-motion cutting in position 2; and irrigation, cutting, and aspiration in position 3. The operator can adjust the preset aspiration and vacuum limits using the adjustment control buttons on the control panel or on the remote control.

•

ATIOP Surgeon

- Surgeon (Surg) Asp - identical to Panel Control

except footpedal positions 3 allows linear control of aspiration flow rate with fixed vacuum limits.

- Surgeon (Surg) Vac - identical to Panel Control

except footpedal positions 3 allows linear control of vacuum limits with fixed aspiration flow rate.

Asp Rate and Vac Level are the primary parameters displayed. Cutting rate is the secondary parameter.

I/A Cutter Press VIT mode. Select the I/A Cutter mode on the screen or remote and “Vit: I/A Cutter” is displayed.

• I/A Cutter Panel - Irrigation is provided in footpedal position 1; irrigation and aspiration in position 2; and irrigation, aspiration, and cutting in position 3.

•

I/A Cutter Surgeon

- Surgeon (Surg) Asp - identical to Panel Control except footpedal positions 2 and 3 allow linear control of aspiration flow rate with fixed vacuum limits.

- Surgeon (Surg) Vac - identical to Panel Control except footpedal positions 2 and 3 allow linear control of vacuum limits with fixed aspiration flow rate.

Asp Rate and Vac Level are the primary parameters displayed. Cutting rate is the secondary parameter.

ATIOP

OFF (position 0)

IRRIGATION (position 1)

IRR/CUTTING (position 2)

IRR/ASP/CUTTING (position 3)

I/A CUTTER

OFF (position 0)

IRRIGATION (position 1)

IRR/ASPIRATION (position 2)

IRR/ASP/CUTTING (position 3)

Figure 1-18 FOOTSWITCH FUNCTIONS - VITRECTOMY

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Panel

DR.

ALCON

Def

Not Primed

Not

uned

375-40 KHz

™*

LEGACY

Coagulation (Coag) Mode

Press the COAG button on the front panel to initiate the Coagulation mode. Coagulation is displayed, and in footpedal position 2 an audible tone is initialized. As in all other modes, settings in COAG are retained in memory so that when

re-entering the Coagulation Mode,

the previous settings are displayed.

The displayed parameter is the percentage of the maximum available coagulation voltage. The default percentage is 30%; variation from this default level is accomplished by the up and down arrows. The Coagulation mode provides approximately 340 Khz frequency bipolar coagulation to drive Alcon brush and forceps up to the preset limit upon activation of the Footswitch. Voltage level setting on the front panel ranges from 10% to 100%.

Coagulation is controlled by either Panel or Surgeon control.

• COAG - Panel Control - provides bipolar coagulation at the preset limit upon activation of the Footpedal in positions 2 and 3.

•

COAG - Surgeon Control - The applied voltage is varied linearly from 10% to the preset limit. Voltage variation begins at Footpedal position 2 and ends at the completion of travel in footpedal position 3.

Coagulation During Priming Panel controlled coagulation is active in the Test mode on any screen during Priming and Cleaning of the system. It is not active during U/S or HydroSonics

™*

handpiece tuning. Coagulation during Test mode is only available with Panel control. The percentage of the maximum Coagulation voltage will be displayed on the sidebar of the screen and may be increased or decreased by adjusting the corresponding arrow keys. These new values will be retained when Coagulation Panel mode is selected again.

If you normally use surgeon controlled Coagulation, you should store both the panel controlled and the surgeon controlled Coagulation screens in the Custom mode.

Not Primed

Not

Tuned

StdCas

Priming is in progress

FILL

Prime

Irr

FILL

Phaco

AdvanTec

DR.

Pulse

U/S

ALCON

TUNETUNE

Bimodal

I/A

Def

375-40 KHz

CLEAN

STOP

Burst

Vit

Panel

Coag Volt

30 %

Max Limit

Coagulation disabled

during tuning

Coag

Custom

WARNING!

Do not use the coagulation function on patients with pacemakers. If electrosurgery is used on patients with implanted cardiac pacemakers or pacemaker electrodes, be aware that irreparable damage to the pacemaker and its function may occur and lead to ventricular fibrillation.

CAUTION

The STTL is not protected against the effects of defibrillator discharge.

Figure 1-19 FOOTSWITCH FUNCTIONS - COAG

OFF (position 0)

STANDBY (position 1)

POWER (position 2)

POWER (position 3)

Figure 1-20 PRIMING IS IN PROGRESS

(software V3.12 shown)

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Program

FITZGERALD

Custom: Program

Def

CUSTOM MODE for software versions 3.01 and below

SERIES 20000

™*

LEGACY

The Custom menu consists of six modes and four special functions which provide the user with the ability to modify system settings and to access system programmability. The modes are:

• Program: new surgeon entry, programming of operational preferences.

• Sound: audio levels for coagulation, vacuum level, U/S occlusion, and aspiration occlusion.

• Voice: audio level as well as ON and OFF selection.

• Language: English (other languages may be available in the future).

• Footswitch: Footswitch control of continuous irrigation, footswitch vertical control (IV pole or Steerable I/A), detent position, and stiffness.

• Remote: channel A/B/C/D select.

The special function modes are IV Pole, Aspiration, Patient Eye Level (PEL), and Disk.

• IV Pole sets the height of the irrigation bottle in each of the sub modes.

• Aspiration sets the aspiration flow rate in footpedal position 3 in each of the U/S submodes.

• PEL provides an offset to the IV Pole display to accommodate low patient eye levels and/or the use of the IV pole extender.

• Disk allows backup and restoration of doctor memories, using 3.5" disks.

To return to the Mode screen, press the Exit button.

Custom - Program Mode Program is the default mode after pressing the Custom key. This mode allows system operational parameters to be programmed, stored, and retrieved. Previously saved parameters are saved under a doctor name & memory number. The up and down arrows scroll the doctor list up and down a page at a time. There are four pages of six names each for a total of 24 doctor names. Each name has four memory settings (Store memory) associated with it.

For the purposes of this section, doctor’s memory will refer to the doctor’s name, and the memory setting will refer to the doctor’s memory number. Each of these definitions is used interchangeably. Memory settings are located in a pop-up screen in the main screen.

• Add a Doctor

1. Press Custom.

2. Press Add in Edit Doctor Box.

3. Type Doctor name on the displayed keyboard (field is limited to 18 characters). When required, the Backspace key deletes a single character to the left of the cursor. The Cancel key returns to the Program mode without saving.

4. Press Store. The doctor’s name is now the selected or active name for the Program screen (right side of screen).

5. Press Exit to return to Main Menu screen and to customize the program.

• Erase a Doctor

Custom: Program

Edit Doctor

Add

Store Memory

1234

Special Functions

IV Pole Asp P.E.L. Disk

Program

Sound

Erase

Voice

FITZGERALD

ANDERSON

FITZGERALD

FRANKLIN MARTINEZ NGUYEN SCHMIDT

Lang



FootSw Remote Exit

Def

Figure 1-21 CUSTOM: PROGRAM (V3.01 and below)

1-24 906-2000-501

1. Press Custom.

2. Select Doctor to be erased from the right side of the screen.

3. Press Exit.

4. Enter Custom mode again.

5. Press Erase in Edit Doctor box.

6. Press Yes to confirm.

7. Press Exit to return to Main menu.

Page 33

SERIES 20000

Irr Footsw

cm.

Special Functions: IV Pole

Exit

Special Functions: Special Functions: AspirationAspiration

Select Desired Mode and Use + and – Keys to Adjust Aspiration Rate Values.

Footsw Position 3

–

Mode

U/S PhacoU/S Phaco

 U/S Pulse  U/S BiModal 

U/S Burst

Aspiration Rate

cc/mincc/min



cc/mincc/min



cc/mincc/min



cc/mincc/min

™*

LEGACY

CUSTOM MODE for software versions 3.01 and below

• Doctor Programming

1. Press Custom.

2. Select Doctor.

3. Press Exit to return to the Main Menu screen.

4. Press each mode that programming is desired for and enter specific parameters, using the up and down arrows.

NOTE: Saving Surgeon Controls into Memory - The memory functions will save each control screen separately. The last screen saved will be the first one displayed in memory for each mode; thus, if the doctor prefers Surg Asp in l/A Max, program the Surg Asp screen last, before you save in Memory 1. When Memory 1 is pulled up, Surg Asp will be the first control mode displayed in l/A Max.

5. After all mode parameters have been set, press Custom.

6. Press IV Pole button in the Special Functions box to customize bottle height for individual modes. The following screen will be displayed:

7. Select the sub mode to be set in the IV Pole sub menu.

8. Adjust the setting by pressing the + or - boxes on the screen or any of the up and down arrows (except those for the IV bottle height) on the front panel.

9. Repeat steps 5 and 6 for each mode/sub mode desired.

10. Press Exit to return to the Program screen.

NOTE: A blank value for bottle height means “unprogrammed.” The pole will not move to a new height when entering the given mode; it remains at

the previous set height (default 65 cm). If the IV pole cannot reach the programmed height setting, the bottle height display will blink.

11. Press Aspiration button in the Special Function box (to customize Aspiration flow rate(s) in the U/S modes). This allows the surgeon to use two different aspiration flow rates for foot positions 2 and 3. The following screen will be displayed:

NOTE: Flow rate in position 3 will not be displayed on front panel until footpedal is in position 3.

12. Select the sub mode to be set in the Aspiration sub menu.

13. Adjust the setting by pressing the + or - boxes on the screen or any of the up and down arrows (except those for the IV bottle height) on the front panel.

14. Repeat steps 12 and 13 for each mode/sub mode desired.

15. Press Exit to return to the Program screen.

16. Press one of the four Store Memory buttons to store all of the above settings. These settings will be used by the unit until the programming is changed.

17. Press Yes or No to confirm memory storage.

NOTE: Each doctor has the option of four programmed memory settings available through Store Memory.

18. Press Exit to return to the Main Menu screen.

NOTE: A blank value for cc/min means “un-programmed”; ASP in position 3 will be the same as in position 2.

Special Functions: IV Pole

Mode Bottle Height

Irr Footsw

Irr Freeflow I/A Min I/A Max I/A Cap Vac U/S Burst

Figure 1-22 SPECIAL IV POLE SETUP



(V3.01 and below)

cm.

cm. cm. cm. cm. cm.



906-2000-501 1-25

Mode Bottle Height

U/S Phaco U/S Pulse U/S BiModal Vit ATIOP Hydro

–

Vit I/A Cutter

cm. cm. cm. cm. cm. cm.

Exit

Figure 1-23 SPECIAL FUNCTIONS: ASPIRATION

(V3.01 and below)

Page 34

CUSTOM MODE for software versions 3.01 and below

SERIES 20000

™*

LEGACY

• Access Pre-Programmed Memory Settings

1. Press Custom.

2. Select the programmed doctor’s name.

3. Press Exit.

4. Press Memory button on the right side of the Main Menu screen.

5. Select desired programmed memory setting (1, 2, 3, or 4). If no memory settings are selected, the default setting will appear.

• Reprogram Memories Memories should not be reprogrammed during a case.

Program and Custom sub modes changes should be made in each memory setting individually to prevent accidental erasure.

1. Enter Custom screen and select the desired preprogrammed doctor’s name to copy

from.

2. Exit to select the exact Memory Setting (1, 2, 3, or 4) to copy

from in the pop-up Memory screen.

3. Re-enter Custom mode (copy from doctor’s name and memory number should be displayed at the top of the screen in light blue).

4. Make the appropriate changes to the program and custom sub modes.

5. Enter the Custom mode.

6. Select the same Memory setting to store to.

7. Confirm by pressing Yes.

• Copy Memories Memories can be copied from one doctor to another.

This procedure will assume the destination Doctor’s name (copy to) has been stored in memory.

1. Enter Custom screen and select the desired preprogrammed doctor’s name to copy

from.

2. Exit to select the exact Memory Setting (1, 2, 3, or 4) to copy

from in the pop-up Memory screen.

3. Re-enter Custom mode (copy from doctor’s name and memory number should be displayed at the top of the screen in light blue).

4. Select Doctor to copy

to (the copy to doctor’s name will now be highlighted in green, as well as the memory settings and the exit key).

5. Select Memory Setting (1, 2, 3, or 4) to store

6. Confirm by depressing Yes.

7. New Doctor’s Name and Memory Number should be displayed in the upper right hand column with the updated information. Exiting the Custom mode will bring up the newly stored program.

to.

• Saving and Restoring Doctor Memories The system allows the user to back up all memories

onto a formatted 3.5” disk, inserted into the slot found on the Rear Connector Panel. Once backed up either a single Doctor, or all Doctor Memories, may be restored.

NOTE: Restoring all Doctors at once erases and overwrites any Doctor Memories residing on the system.

1. Enter the Custom Mode screen and press the “Disk” button in the Special Functions box.

2. Insert a formatted 3.5” disk into the floppy drive slot, located on the Rear Connector Panel.

To back up all Doctor Memories press the “All”

3. button in the Backup Doctors To Diskette box. Press the “Yes” button in the confirmation window in the upper left region of the screen.

To restore a single Doctor’s Memory (all

4. memories belonging to selected Doctor name) press the “List Doctors On Diskette” button in the upper right area of the screen. Press the desired Doctor name button in the list to select a Doctor. Press the “Selected” button in the Restore Doctors From Diskette box, then press the “Yes” button in the confirmation window.

To restore all Doctor Memories press the “All”

5. button in the Restore Doctors From Diskette box, then press the “Yes” button in the confirmation window.

• Setting a Patient Eye Level Adjustment The system supports a Patient Eye Level offset

adjustment which allows the user to perform surgery on eyes that are positioned below the cassette. This offset value is a system-wide value, and is recovered each time the user turns on system power. When a non-zero offset value is in effect, the letters "PEL" will be displayed in the text window of all operating mode screens.

NOTE: The Patient Eye Level setting is global. If changed, it will affect previously stored values for IV bottle height.

1. Enter the Custom Mode screen and press the "P.E.L." button in the Special Functions box.

2. Adjust the setting by pressing the + or – boxes on the screen or any of the up and down arrows (except those for the IV bottle height) on the front panel.

1-26 906-2000-501

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SERIES 20000

Sound

Custom: Sound

™*

LEGACY

CUSTOM MODE for software versions 3.01 and below

• For using the IV Pole Extender.

1. Enter the Custom Mode screen and press the "P.E.L." button in the Special Functions box.

2. Adjust the setting to -32 cm by pressing the + or – boxes on the screen or any of the up and down arrows (except those for the IV bottle height) on the front panel.

3. For further information, such as how to combine this with patient eye level variations, refer to the DFU that was supplied with the IV Pole Extender.

NOTE: A blank value for the Patient Eye Level means "unprogrammed."

Custom - Sound Mode In this mode the Sound key highlights and Custom: Sound appears in the title area.

Custom Sound mode provides control over sound tone generation. The individual volume selection, and in some cases On/Off control, is provided. Controls are activated via touch keys. The volume of aspiration occlusion, U/S occlusion, Vacuum, and Coagulation tones are controlled individually. The + and – keys provide linear control over tone values, as reflected by the corresponding volume meters. The On/Off controls toggle the tone generation status for Aspiration Occlusion and Vacuum tones; U/S Occlusion and Coagulation tones cannot be turned off completely.

Custom - Voice Mode In this mode, the Voice menu key is highlighted and Custom: Voice is displayed in the title area.

The Custom Voice mode provides control of the system voice output. A toggle On/Off control and a linear volume control are provided. Controls are activated by the touch keys. Arrow keys will scroll volume level.

Custom - Language Mode In this mode, the Lang menu key will be highlighted and Custom: Language will be displayed in the title area (for future expansion).

The Custom Language mode will allow selection of the system language. System Voice will prompt the user, and screen text will provide the selected language. The selection will be a multiple choice toggle activated via the touch keys.

Custom - Footswitch Mode In this mode the FootSw menu key is highlighted and Custom: Footswitch is displayed in the title area.

The Series 20000

™*

and Accurus®/Legacy® footswitches offer programmable footpedal detent placement. The Custom Footswitch mode allows the footpedal travel between detents to be moved by selecting the Normal, I/A, or Phaco keys. The footpedal is defaulted to Normal. (Note: programmable detents are not available when using the ATFS-Legacy® footswitch.) Footpedal detent stiffness can be selected as Hard, Medium, and Soft (default is Medium). The percent of footpedal travel in each enhanced mode is listed in the table below:

Table 1-3 FOOTPEDAL TRAVEL IN ENHANCED

MODES (V3.01 and below)

Footpedal Travel Normal I/A Phaco Between Detents

Custom: Sound

1 to 2 16% 16% 13%

0 to 1 5% 5% 5%

–

Audio Level

–

Audio Level

2 to 3 35% 50% 25%

Asp Occlusion

OFF

Vacuum

OFF

3 to base 44% 29% 57%

–

U/S Occlusion

Audio Level

–

Audio Level

Coagulation

Continuous irrigation is available in all three custom footswitch detent modes; it defaults to DISABLE. The function allows the right side pedal to toggle the irrigation valve ON and OFF.

Program

Sound

Voice

Lang

Figure 1-24 CUSTOM: SOUND (V3.01 and below)

906-2000-501 1-27

FootSw

Remote Exit

Page 36

FootSw

CUSTOM MODE for software versions 3.01 and below

SERIES 20000

™*

LEGACY

Custom: Footswitch

Footswitch

Vertical Control

 

I/V Pole

 

Steer I/A

 

None

Program

Cont. Irr.

   

Enable

 

Disable

Sound Remote Exit

Voice

Detent Range

Lang

   

Normal

 

I/A

 

Phaco

FootSw

Stiffness

   

Hard

 

Medium

 

Soft

Figure 1-25 CUSTOM: FOOTSWITCH

(V3.01 and below)

Footswitch control of certain functions, using the left and right vertical buttons, may be selected or disabled. If "None" is selected, the vertical buttons have no effect. Selecting "IV Pole" allows the user to increase or decrease the IV Pole height, using the right and left vertical buttons, respectively. If the Steerable I/A hardware is present on the system, the "Steerable I/A" button appears on the Custom Footswitch screen. If selected, this allows the Steerable I/A handpiece tip to increasingly bend, using the right vertical button, or straighten, using the left.

These footpedal adjustments may be stored into memory: Detent Position, Detent Stiffness, and Continuous Irrigation. The three variables, however, are only available once per doctor’s memory (i.e., Phaco - soft, Continuous Irrigation-On could be saved in Dr Alcon 1; and I/A medium, Continuous Irrigation-Off saved in Dr Alcon 2). You

cannot save more than one set of variables in one memory. The set of variables saved will be global for that entire memory selection.

Custom - Remote Mode In this mode, the Remote menu key is highlighted and Custom: Remote is displayed in the title area.

The Custom Remote mode allows the selection of four remote receive codes: A, B, C, & D. This selection must correspond to the channel selection on the remote control. The channel is a toggle selection activated via the touch screen. No additional steps are needed once the remote channel is set.

The remote control must be switched to the appropriate channel. Switch is located near the battery compartment (see Figure 1-10). "A" channel is the default channel. If the proper channel is not programmed on the front panel, the remote control will not function and all changes will have to be made via the front panel.

1-28 906-2000-501

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SERIES 20000

™*

LEGACY

CUSTOM MODE for software versions 3.12 and above

The Custom menu consists of six Modes and six Special Functions which provide the user with the ability to modify system settings and to access system programmability. The modes are:

• Program: Programming new surgeon entry and operational preferences, and access to Special Functions.

Sound: audio levels for coagulation, vacuum level,

• U/S occlusion and pre-occlusion, U/S Tone, and aspiration occlusion and pre-occlusion.

Voice: audio level as well as ON and OFF selection.

• Language: English (other languages may be available

• as options).

Footswitch: Footswitch control of switching between

• memories, modes and/or submodes, continuous irrigation, footswitch vertical control (IV pole or Steerable I/A), detent position, and stiffness.

Remote: channel A/B/C/D select.

•

Modes and Submodes

The Custom/Program/Special Functions features are IV Pole, Aspiration, Occlusion, Disk, Metrics, and Patient Eye Level (PEL).

•

IV Pole sets the height of the irrigation bottle in each of the sub modes.

Aspiration sets the aspiration flow rate in footpedal

• position 3 in each of the AdvanTec and U/S submodes.

Occlusion screen defines U/S power and

• NeoSonix™* amplitude automatic reduction as vacuum reaches pre-occlusion or occlusion values. Pre-occlusion value is equal to approximately 90% of the occlusion (vacuum limit) value. This power reduction takes effect only in those submodes where continuous ultrasound can be used: AdvanTec Phaco, U/S Phaco and U/S BiModal.

Disk allows backup and restoration of doctor

• memories, using 3.5" disks.

Legacy

Edit

Doctor

• Add

• Erase

Tones for:

• Aspiration Occlusion

• U/S Occlusion

• Aspiration Pre-Occlusion

• U/S Pre-Occlusion

• U/S Power

• Vacuum

• Coagulation

Store

Memory

• 1

• 2

• 3

• 4

• All

Custom Mode

VoiceSoundProgram

Control of:

• On/Off

• Volume

Special

Functions

• IV Pole

• Aspiration

• Occlusion

• Disk

• Metrics

• P.E.L.

Language:

• English

• Français

• Español

• Deutsch

• Italiano

• Português

• Japanese

Programming of:

• Right Heel and Remote

•

Vertical Control

• Continuous Irrigation

• Detent Range

• Stiffness

RemoteFootswLang

Select:

• Channel A

• Channel B

• Channel C

• Channel D

Figure 1-26 CUSTOM MODE (V3.12 and above)

906-2000-501 1-29

Page 38

CUSTOM MODE for software versions 3.12 and above

Def

Custom: Program

Program

Special Functions: Metrics

SERIES 20000

™*

LEGACY

Custom: Program

Edit Doctor

Add

Store Memory

Special Functions

IV Pole Occl

Disk

Program

Asp

Metrics

Sound Remote Exit

Erase

P.E.L.

V O I

FITZGERALD

ANDERSON

FITZGERALD

Lang

FRANKLIN MARTINEZ

NGUYEN

SCHMIDT

FootSwVoice

All

Def

Figure 1-27 CUSTOM: PROGRAM (V3.12 and above)

• Metrics provides data related to the usage of ultrasound and NeoSonix™* oscillations during one surgical procedure. All the values are computed from the moment the tuning is completed or when the Reset button is pressed, whichever occurs later. The first line in the Metrics screen provides average U/S power in footpedal position 3. This value is identical to that of the A.P. (average power) value displayed on the main surgical screen. The second and third lines in the Metrics screen provide average U/S power and time. For continuous ultrasound there is no difference between the average U/S power (second line) and average U/S power in footpedal position 3 (first line). For ultrasound used in pulse or burst mode, average U/S power is greater than the average U/S power in footpedal position 3, because average U/S power in the latter case is averaged over the time including pauses between pulses or bursts of ultrasound. Value in the first line is a better representation of potential for temperature increase at the incision, while average U/S power in conjunction with the U/S time give a better representation of total energy delivered to the eye. The fourth and fifth lines provide U/S power and time measured during the first mode only. Typically, the first mode is used for the first phase of the phacoemulsification procedure, for example “Sculpting” of the popular Divide-AndConquer surgical technique. For that reason ultrasound used in AdvanTec Visco submode is never counted toward the first mode. The first mode is defined as any U/S submode or any AdvanTec submode with the exception of the Visco submode. Switching to a new mode, submode, or memory signals the end of the first mode.

Special Functions: Metrics

A.P. Footswitch Position 3 U/S Average Power U/S Time U/S Average Power AdvanTec Phaco U/S Time AdvanTec Phaco

Average Amplitude NeoSoniX Time Equivalent U/S Power Equivalent U/S Time

Ultrasound

NeoSoniX

14.8%

4.3 min (4 min 19 sec)

0.4 min (0 min 23 sec)

4.3 min (4 min 19 sec)

0.0 min (0 min 1 sec)

25.7%

32.1%

40.0%

0.1%

Exit

Figure 1-28 METRICS SCREEN (V3.12 and above)

The Metrics screen may also contain the following information, if applicable. NeoSonix™* average amplitude, NeoSonix™* time, Equivalent U/S Time and Equivalent U/S Power. The last two values are calculated from the previous two values by taking into account differences between U/S frequency (approximately 38,000 Hz) and NeoSonix™* frequency of oscillations (approximately 100 Hz). Equivalent U/S values are usually very small, reflecting the fact that very little energy is transferred by mechanical oscillations of NeoSonix™*.

•

PEL provides an offset to the IV Pole display to accommodate patient eye levels different from that of the tray, and/or the use of the IV pole extender.

To return to the Mode screen, press the Exit button.

Custom - Program Mode

Program is the default mode after pressing the Custom key. This mode allows system operational parameters to be programmed, stored, and retrieved. Previously saved parameters are saved under a doctor name & memory number. The up and down arrows scroll the doctor list up and down a page at a time. There are 16 pages of 6 names each for a total of 96 doctor names. Each name has four memory settings (Store memory) associated with it.

For purposes of this section, doctor’s memory will refer to the doctor’s name, and the memory setting will refer to the doctor’s memory number. Each of these definitions is used interchangeably. Memory settings are located in a main screen pop-up.

1-30 906-2000-501

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SERIES 20000

™*

LEGACY

CUSTOM MODE for software versions 3.12 and above

Some attributes will be saved for each individual memory, for example Occlusion Power Management located under Special Functions/Occlusion. For such attributes, the respective screen will state “Setting applied per memory.” Other attributes, like any footswitch related controls, will be saved once for each doctor. Such attributes will remain identical regardless of memory. A respective setup screen will contain the statement “Settings apply to all memories of selected doctor.” The table below summarizes various settings:

• Add a Doctor

1. Press Custom.

2. Press Add in Edit Doctor Box.

3. Type Doctor name on the displayed keyboard (field

is limited to 18 characters). When required, the Backspace key deletes a single character to the left of the cursor. The Cancel key returns to the Program mode without saving.

4. Press Store. The doctor’s name is now the selected or

active name for the Program screen (right side of screen).

5. Press Exit to return to Main Menu screen and to

customize the program.

• Erase a Doctor

1. Press Custom.

2. Select Doctor to be erased from the right side of the

screen.

3. Press Exit.

4. Enter Custom mode again.

5. Press Erase in Edit Doctor box.

6. Press Yes to confirm.

7. Press Exit to return to Main menu.

• Doctor Programming

1. Press Custom.

2. Select Doctor.

3. Press Exit to return to the Main Menu screen.

4. Press each mode that programming is desired for and enter specific parameters, using the up and down arrows.

Note: Saving Surgeon Controls into Memory Memory functions save each control screen separately. The last screen saved is the first one displayed in memory for each mode; thus, if the doctor prefers Surg Asp in I/A Max, program the Surg Asp screen last, before saving in Memory 1. When Memory 1 is pulled up, Surg Asp is the first control mode displayed in I/A Max.

5. After all mode parameters have been set, press Custom.

6. Press IV Pole button in the Special Functions box to customize bottle height for individual modes. The screen in Figure 1-29 will be displayed.

7. Select the sub mode to be set in the IV Pole sub menu.

8. Adjust the setting by pressing the + or - boxes on the screen or any of the up and down arrows (except those for the IV bottle height) on the front panel.

9. Repeat steps 5 and 6 for each mode/sub mode desired.

10. Press Exit to return to the Program screen.

NOTE: A blank value for bottle height means “unprogrammed.” The pole will not move to a new height when entering the given mode; it remains at the previous set height (default 65 cm). If the IV pole cannot reach the programmed height setting, the bottle height display will blink.

Table 1-4. VARIOUS MEMORY SETTINGS (V3.12 and above)

Per Memory Per Doctor Per Unit

Attributes Occlusion power All footswitch Language.

management. attributes. Remote Control Channel. IV Pole. All sounds. PEL. Aspiration in FP 3.

How to Save Press "Store" and Automatically saved without confirmation by

appropriate memory. exiting the respective screen after

appropriate adjustment.

906-2000-501 1-31

Page 40

CUSTOM MODE for software versions 3.12 and above

Special Functions: IV Pole

Irr Footsw

Special Functions:

Aspiration

U/S Phaco

cc/min

Special Functions: Occlusion

Exit

Short Pulse

Half Power

SERIES 20000

™*

LEGACY

Special Functions: IV Pole

Mode Bottle Height

Irr Footsw

Irr Freeflow cm I/A Min I/A Max I/A CapVac Vit ATIOP Vit I/A Cutter

cm cm

cm cm cm

Settings applied per memory.

–

Mode AdvanTec Visco

AdvanTec Phaco AdvanTec Pulse AdvanTec Burst U/S Phaco

U/S Pulse U/S BiModal U/S Burst

Bottle Height

cm cm cm

cm cm cm cm cm

Exit

Figure 1-29 SPECIAL IV POLE SETUP

(V3.12 and above)

11. Press Aspiration button in the Special Function box to customize Aspiration flow rate(s) in the U/S modes (see Figure 1-28). This allows the surgeon to use two different aspiration flow rates for foot positions 2 and 3.

NOTE: Flow rate in position 3 will not be displayed on front panel until footpedal is in position 3.

12. Select the sub mode to be set in the Aspiration sub menu.

13. Adjust the setting by pressing the + or - boxes on the screen or any of the up and down arrows (except those for the IV bottle height) on the front panel.

14. Repeat steps 12 and 13 for each mode/sub mode desired.

15. Press Exit to return to the Program screen.

Special Functions:

Aspiration

Special Functions: Occlusion

U/S at

‘Pre-Occlusion’

Full Power

Half Power

Quarter Power

Pulse

Short Pulse

Power Off

U/S at

‘Occlusion’ Full Power

Half Power

Quarter Power

Pulse

Short Pulse

Power Off

Settings applied per memory.

Exit

Figure 1-31 SPECIAL FUNCTIONS: OCCLUSION

(V3.12 and above)

16. Press the Occlusion button in the Special Functions box to customize the power level during low flow conditions (see Figure 1-31). There are two columns describing application of ultrasound power during pre-occlusion (left column) and occlusion (right column). Pre-occlusion is defined as an event when vacuum is approaching the vacuum limit and the pump has slowed down. This happens when the actual vacuum is approximately equal to 90% of the set vacuum level. Occlusion is defined as an event when the pump has reached the vacuum limit and the pump has stopped.

For either event, pre-occlusion or occlusion, ultrasound power can be reduced to one-half or onequarter of the commanded power, or switched to pulsed application at the commanded power with either 50% on-time pulse (50% duty cycle) or 25% on-time short pulse (25% duty cycle). It is also possible to turn ultrasound off for either event.

Footswitch Position 3

Rate

Mode

AdvanTec Visco AdvanTec Phaco

AdvanTec Pulse

AdvanTec Burst

Rate

cc/min cc/min

cc/min

–

Mode

U/S Phaco

U/S Pulse

U/S BiModal

U/S Burst

cc/min

Select Desired Mode and Use + and –

Keys to Adjust Aspiration Rate Values.

Settings applied per memory.

Exit

Figure 1-30 SPECIAL FUNCTIONS: ASPIRATION

(V3.12 and above)

1-32 906-2000-501

NeoSonix™* amplitude is not affected by the Occlusion Power Management, but NeoSonix™* oscillations will be switched to Pulse or Short Pulse so that oscillations will be active only when ultrasound is active. Switching ultrasound off as part of the Occlusion Power Management will also turn off NeoSonix™* oscillations. The only combinations allowed are those that do not increase amount of ultrasound power at occlusion as compared to preocclusion (see Table 1-5).

Occlusion Power Management applies only to AdvanTec Phaco, U/S Phaco, and U/S BiModal submodes.

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SERIES 20000

Table 1-5. ACCEPTABLE PRE-OCCLUSION/OCCLUSION COMBINATIONS (V3.12 and above)

™*

LEGACY

CUSTOM MODE for software versions 3.12 and above

Occlusion Pre-Occlusion Full Half Quarter Pulse Full OK OK OK OK OK OK Half X OKOKOKOKOK Quarter XXOKXOKOK Pulse X OKOKOKOKOK Short Pulse XXOKXOKOK Off XXXXXOK

Short Pulse

Off

17. Press one of the four Store Memory buttons to store all of the above settings. These settings will be used by the unit until the programming is changed.

18. Press Yes or No to confirm memory storage. NOTE: Each doctor has the option of four

programmed memory settings available through Store Memory.

19. Press Exit to return to the Main Menu screen. NOTE: A blank value for cc/min means

“un-programmed”; Asp in position 3 will be the same as in position 2.

• Access Pre-Programmed Memory Settings (can be done

at any time)

1. Press Custom.

2. Select the programmed doctor’s name.

3. Press Exit.

4. Press Memory button on the right side of the Main Menu screen.

5. Select desired programmed memory setting (1, 2, 3, or 4). If no memory settings are selected, the default setting will appear.

• Reprogram Memories

Memories should not be reprogrammed during a case. Program and Custom sub modes changes should be made in each memory setting individually to prevent accidental erasure.

1. Enter Custom screen and select the desired preprogrammed doctor’s name to copy

from.

2. Exit to select the exact Memory Setting (1, 2, 3, or 4) to copy

from in the pop-up Memory screen.

3. Re-enter Custom mode (copy from doctor’s name and memory number should be displayed at the top of the screen in light blue).

4. Make the appropriate changes to the program and custom sub modes.

5. Enter the Custom mode.

6. Select the same Memory setting to store to.

7. Confirm by pressing Yes.

• Copy Memories

Memories can be copied from one doctor to another. This procedure will assume the destination Doctor’s name (copy to) has been stored in memory.

1. Enter Custom screen and select the desired preprogrammed doctor’s name to copy

from.

2. Exit to select the exact Memory Setting (1, 2, 3, or 4) to copy

from in the pop-up Memory screen.

3. Re-enter Custom mode (copy from doctor’s name and memory number should be displayed at the top of the screen in light blue).

4. Select Doctor to copy

to (the copy to doctor’s name will now be highlighted in green, as well as the memory settings and the exit key).

5. Select Memory Setting (1, 2, 3, or 4) to store

to.

6. Confirm by depressing Yes.

7. New Doctor’s Name and Memory Number should be displayed in the upper right hand column with the updated information. Exiting the Custom mode will bring up the newly stored program.

• Copy Doctors

This function allows to copy all memories from one doctor to all respective memories of another doctor in one step. This procedure will assume the destination Doctor’s name (copy to) has been stored in memory.

1. Enter Custom screen and select the desired preprogrammed doctor’s name to copy from.

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LEGACY

2. Exit the Custom screen.

3. Re-enter Custom mode (copy from doctor’s name should be displayed at the top of the screen in light blue).

4. Select Doctor to copy to (the copy to doctor’s name will now be highlighted ingreen, as well as the memory settings and the exit key).

5. Select "All" to copy all memories from the former doctor to the respective memories of the latter doctor.

6. Confirm by pressing Yes.

7. New Doctor’s Name should be displayed in the upper right hand column with the updated information. Exiting the Custom mode will bring up the newly stored program.

• Saving and Restoring Doctor Memories

The system allows the user to back up all memories onto a formatted 3.5” disk, inserted into the floppy drive slot found on the Rear Connector Panel. Once backed up either a single Doctor, or all Doctor Memories, may be restored.

NOTE: Restoring all Doctors at once erases and overwrites any Doctor Memories residing on the system.

1. Enter the Custom Mode screen and press the “Disk” button in the Special Functions box.

2. Insert a formatted 3.5” disk into the floppy drive slot, located on the Rear Connector Panel.

To back up all Doctor Memories press the “All”

3. button in the Backup Doctors To Diskette box. Press the “Yes” button in the confirmation window in the upper left region of the screen.

To restore a single Doctor’s Memory (all memories

4. belonging to selected Doctor name) press the “List Doctors On Diskette” button in the upper right area of the screen. Press the desired Doctor name button in the list to select a Doctor. Press the “Selected” button in the Restore Doctors From Diskette box, then press the “Yes” button in the confirmation window.

To restore all Doctor Memories press the “All”

5. button in the Restore Doctors From Diskette box, then press the “Yes” button in the confirmation window.

Software version 3.12 will accept doctor memories backed up by older versions, namely 2.4x, 2.5x, and 3.0x. The following changes occur as a result of the conversion:

1. All Hydrosonics™* settings will be discarded since version 3.1x or above does not support that mode.

2. Parameters contained in the U/S Phaco, U/S Pulse and U/S Burst will be copied into AdvanTec Phaco, AdvanTec Pulse, and AdvanTec Burst respectively. AdvanTec amplitude and threshold will be set to default values.

3. All footswitch attributes and all sounds contained in 1st memory will be copied into all memories of that doctor. All footswitch attributes and all sounds contained in 2nd, 3rd, and 4th memories will be discarded.

NOTE: Please use a blank diskette, or one that

was previously used as a Legacy

backup diskette, when backing up Doctor Memories. It is recommended that you properly label the diskette by including the version number of the software installed on your system (e.g. V2.52). Do not attempt to restore the Doctor Memories to a system having an older software version.

• Setting IV Pole Offset and a Patient Eye Level Adjustment The system supports an IV Pole offset which is used to account for presence of IV pole extender. Patient Eye Level offset adjustment allows the user to perform surgery on eyes that are positioned at a level different from that of the tray. This offset value is a global systemwide value, and is recovered each time the user turns on system power. The text window of all operating mode screens will display numerical value in centimeters of the IV pole extender length and added relative bottle height due to patient's eye located below the tray level.

NOTE: The IV Pole offset and Patient Eye Level settings are global. If changed, they will affect IV bottle height.

1. Enter the Custom Mode screen and press the "P.E.L." button in the Special Functions box.

2. If the IV pole extender is present on the system, enter its length in the IV pole section of the menu. If the patient’s eye is located at a level different from that of the tray, enter the relative height in the P.E.L. section of the screen. If the eye is located below tray level, enter negative value; if the eye is located above tray level, enter positive value. Adjust the settings by pressing the + or – boxes on the screen or any of the up/down arrows (except those for the IV bottle height) on the front panel.

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Custom: Sound

Asp Pre-Occlusion

OFF

Custom: Footswitch

Footsw

None

Disable

None

Normal

Medium

™*

LEGACY

CUSTOM MODE for software versions 3.12 and above

Custom - Sound Mode In this mode the Sound key highlights and Custom: Sound appears in the title area.

Custom Sound mode provides control over sound tone generation. ON/OFF controls are provided for Asp Occlusion, Asp Pre-Occlusion, U/S Pre-Occlusion, Vacuum, and U/S Power. Controls are activated via touch keys. The volume of aspiration occlusion, U/S occlusion, U/S, vacuum, and coagulation tones are controlled by the Audio Level. The + and – keys provide linear control over tone values, as reflected by the corresponding volume meter. For safety reasons U/S occlusion and coagulation tones default to ON only and cannot be completely turned off.

Vacuum tone is continuous and its pitch rises as vacuum increases. Sudden increase in vacuum tone pitch (vacuum increase) while commanded aspiration flow rate is constant usually indicates that the tip is occluded and that the flow through the system is considerably reduced. As vacuum continues rising and approaching maximum allowed value (vacuum limit), pre-occlusion tone will sound, if enabled. This will indicate that the vacuum is at approximately 90% of the vacuum limit and that the pump has slowed down. For ABS tips, the vacuum level often does not increase to the vacuum limit, especially in high vacuum settings (>200 mmHg); therefore, if a user desires an audible indicator of maximum vacuum, the pre-occlusion sound can be activated.

applied (footpedal position 2). U/S pre-occlusion and occlusion sounds can only be enabled when either U/S or NeoSonix™* is applied (footpedal position 3). U/S power sound can be enabled to obtain audible indication that either U/S or NeoSonix™* are applied.

Custom - Voice Mode

In this mode, the Voice menu key is highlighted and Custom: Voice is displayed in the title area.

Custom - Language Mode

In this mode, the Lang menu key will be highlighted and Custom: Language will be displayed in the title area.

Custom - Footswitch Mode

In this mode the FootSw menu key is highlighted and Custom: Footswitch is displayed in the title area.

Custom: Footswitch

The defaults for pre-occlusion sounds, both Asp and U/S, are OFF. Occlusion sounds indicate the vacuum limit is reached and that the pump is stopped. Aspiration occlusion and pre-occlusion sounds can only be enabled when no ultrasound or NeoSonix™* oscillations are

Settings apply to all memories of selected doctor.

Program

Figure 1-32 CUSTOM: SOUND (V3.12 and above)

System Sounds

Asp Pre-Occlusion

Asp Occlusion

U/S Pre-Occlusion

U/S Occlusion

Sound

Custom: Sound

U/S Power

Vacuum

Coagulation

V O I

Voice

Lang

–

Audio Level

FootSw

Level

On / Off

Remote

OFF

Exit

Continuous

Irrigation

Enable

Disable

Lang

Detent Range

I/A

Phaco

Stiffness

HardNormal

Medium

Soft

RemoteVoice

ExitFootsw

…

Footswitch

Sound

Vertical Control

I/V Pole

Steer I/A

None

Right Heel & Remote

None

Memory

Mode

SubMode

Procedure

Settings apply to all memories of selected doctor.

Program

Figure 1-33 CUSTOM: FOOTSWITCH

(V3.12 and above)

The Accurus®/Legacy® footswitch has a heel switch which can be programmed to navigate through subsequent memories, modes, submodes or custom sequence of the above procedure. Pressing the heel switch for less than 0.5 sec but longer than 0.1 sec will advance the unit to the next setting. Pressing on the

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CUSTOM MODE for software versions 3.12 and above

Custom: Procedure

U/S

U/S BiModal 3

SERIES 20000

™*

LEGACY

switch for longer than 0.5 sec will advance the unit to the previous setting. The following selections are possible:

NONE – Heel switch is disabled (default condition).

MEMORY – Allows advance sequentially through memories 1-2-3-4-1-. . . or reverse action (e.g., switching from memory 1 to 4).

MODE – Allows advance sequentially through modes Irr-AdvanTec-U/S-I/A-Vit-Coag-Irr-. . . or reverse action (e.g., switching from AdvanTec to Irr).

SUBMODE – Allows advance sequentially through submodes within one mode, such as AdvanTec Visco – AdvanTec Phaco – AdvanTec Pulse – AdvanTec Burst – AdvanTec Visco -. . . or reverse action (e.g., switching from AdvanTec Phaco to AdvanTec Visco).

PROCEDURE – Allows advance through customized sequence of submodes. The sequence can be programmed using Procedure editing screen accessed by touching the “...” button located immediately to the right of the Procedure button. After a mode, submode and memory are pressed and highlighted. Pressing the “+” (add) button will add the combination to the last free line of the right column containing procedure sequence. Up to eight steps in the procedure are allowed. To delete a step, highlight it by pressing and press the “–“ (delete) button. To move a step up or down, highlight it and use membrane keys located to the right of the screen (upper set of keys only). Programming the heel switch determines functionality of the Forward and Reverse buttons in the bottom row of Remote control buttons.

Once the procedure is programmed, the two buttons of the Remote control will advance or reverse the procedure sequence, even if the heel switch is not enabled to operate Procedure.

Custom: Procedure

Mode

Irr

AdvanTec

U/S

I/A

Vit

Coag

Settings apply to all memories of selected doctor.

Phaco

Pulse

BiModal

Burst

MemorySubmode

Memory 1

Memory 2

Memory 3

Memory 4

Defaults

Procedure

AdvanTec Visco 1

–

AdvanTec Phaco 1

AdvanTec Burst 2

U/S BiModal 3

Irr Cont 1 I/A Max 1

I/A CapVac 1

I/A Max 2

Exit

Figure 1-34 CUSTOM: FOOTSWITCH: PROCEDURE

(V3.12 and above)

The Series 20000

™*

and Accurus®/Legacy® footswitches offer programmable footpedal detent placement. The Custom Footswitch mode allows the footpedal travel between detents to be moved by selecting the Normal, I/ A, or Phaco keys. The footpedal is defaulted to Normal. (Note that programmable detents are not available when using the ATFS-Legacy® footswitch.) Footpedal detent stiffness can be selected as Hard, Medium, and Soft (default is Medium). The percent of footpedal travel in each enhanced mode is listed in the table below:

Table 1-6. FOOTPEDAL TRAVEL IN ENHANCED MODES (V3.12 and above)

Footpedal Travel Between Detents Normal I/A Phaco

0 to 1 5% 5% 5%

1 to 2 16% 16% 13%

2 to 3 35% 50% 25%

3 to base 44% 29% 57%

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Continuous irrigation is available in all three custom footswitch detent modes; it defaults to DISABLE. This allows the right side pedal to toggle the irrigation valve ON and OFF.

Footswitch control of certain functions, using the left and right vertical buttons, may be selected or disabled. If "None" is selected, the vertical buttons have no effect. Selecting "I/V Pole" allows the user to increase or decrease the IV Pole height, using the right and left vertical buttons, respectively. If the Kelman® Steerable I/ A hardware is present on the system, the "Steerable I/A" button appears on the Custom Footswitch screen. If selected, this allows the Steerable I/A handpiece tip to increasingly bend, using the right vertical button, or straighten, using the left.

These footpedal adjustments may be stored once per doctor: Detent Position, Detent Stiffness, and Continuous Irrigation. The three adjustments are only available once per doctor’s memory (i.e., Phaco, Soft, Continuous Irrigation-On could be saved in Dr. Alcon; and I/A Medium, Continuous Irrigation-Off saved in Dr. Johnson). More than one set of variables per doctor cannot be saved. The set of variables saved will be the same for all memories, modes, and submodes of the particular doctor.

Custom - Remote Mode

In this mode, the Remote menu key is highlighted and Custom: Remote is displayed in the title area.

The remote control must be switched to the appropriate channel. The switch is located near the battery compartment. "A" channel is the default channel. If the proper channel is not programmed on the front panel, the remote control will not function and all changes will have to be made via the front panel.

TEST MODE for Software Versions 3.01 and Below

The Test mode can be entered via IRR, Hydro, U/S, I/A, and Vit. The Test key can be activated via the front panel or the remote. Test key is disabled in Coag and Custom modes. Continuous irrigation is not accessible in this mode.

When the Test key is pressed from any mode (other than Coag and Custom), the Test base screen is displayed. The next Test key depression initiates the priming sequence (except in I/A mode), whereas another Test key depression in succession would bypass priming and take the system directly to vacuum check. A vent check is performed after completion of vacuum check.

Coagulation is available in the Test mode during priming and cleaning of the system. It is not accessible during any active U/S or HydroSonics™* handpiece tuning. Coagulation control during Test mode is only available in Panel control. Coagulation voltage will be displayed on the sidebar of the screen and may be increased or decreased by adjusting the corresponding arrow keys. These new values will be retained in Panel control when Coagulation Panel mode is selected again.

• Prime Key Processing - Initiates the priming sequence where fluid is flushed through the system to remove air. Priming is followed by vacuum and venting checks. Upon successful completion of both vacuum (≥400 mmHg) and vent (≤5 mmHg) checks the system will display “Priming Complete.” Prime key is faded out in I/A mode.

If either vacuum or vent checks are incomplete the system will display “Check fittings-Reprime,” with an appropriate code (i.e., 1., 2., 3.). In Irrigation mode, if code 1 or 2 is encountered, the system will attempt to reprime once.

• Tune Key Processing - If system is already primed, then tuning is performed in Hydro and U/S modes only. Tune key will be faded out if this function is not available for the selected mode (i.e., Irr, I/A, and Vit modes ), or if system is “Not Primed” in Hydro, U/S modes, or if the handpiece is not inserted.

• Charge Key Processing (if Steerable I/A system is installed, and it is selected) - If the system is already primed, then charging of the Steerable I/A system is performed automatically in U/S and I/A modes. The system will test the Steerable I/A system and will verify the presence of a Steerable I/A handpiece.

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• Clean Key Processing - Will clear any remaining fluid from system between cases and prior to turning off the machine.

• Stop Key Processing - Stop key returns user to the sub modes. The Stop key can be pressed at any time to stop priming or cleaning. If unit is already primed, the system will remain primed when the Stop key is depressed.

Test Key

• Test Key in IRR Mode - Priming, Vacuum check, and Vent check sequence are performed during the IRR menu, as described in Test key processing on prior page.

• Test Key in Hydro Mode - Priming of the

HydroSonics

™*

handpiece with a series of injection pulses is performed, followed by tuning of the handpiece. After successful completion of tuning, the Tune status indicator on the front panel changes from red to green.

• Test Key in U/S Mode - Priming, vacuum check, and vent check are performed in the U/S mode as described in Test key processing on prior page. Upon successful completion of vacuum and vent checks, the system automatically proceeds to tuning of the U/S handpiece. If the tuning check is successful, “Tuning Complete” appears and the Tune status indicator changes from red to green.

Upon successful completion of tuning, if the Steerable I/A option is installed and selected, the system will automatically proceed to charging the Steerable I/A handpiece. If charging of the Steerable I/A handpiece is successful, the “Charging Complete” message is displayed and the Charge status indicator changes from red to green.

A flow test is also performed after tuning to check for handpiece flow. An advisory is given if there are any occlusions.

TEST MODE for Software Versions 3.12 and Above

The Test mode can be entered via IRR, AdvanTec, U/S, I/A, and Vit. The Test key can be activated via the front panel or the remote. Test key is disabled in Coag and Custom modes. Continuous irrigation is not accessible in this mode.

When the Test key is pressed from any mode (other than Coag and Custom), the Test screen is displayed (See Figure 1-20). The next Test key depression initiates the priming sequence, whereas another Test key depression in succession would bypass priming and take the system directly to vacuum check. A vent check is performed after completion of vacuum check.

Coagulation is available in the Test mode during priming and cleaning of the system. It is not accessible during U/S or NeoSonix™* handpiece tuning/flow check sequence. Coagulation control during Test mode is only available in Panel control. Coagulation voltage will be displayed on the sidebar of the screen and may be increased or decreased by adjusting the corresponding arrow keys. These new values will be retained in Panel control when Coagulation Panel mode is selected again.

• Prime Key Processing - Initiates the priming sequence - where fluid is flushed through the system to remove air. Priming is followed by vacuum and venting checks. Upon successful completion of both vacuum (≥400 mmHg) and vent (≤5 mmHg) checks the system will display “Priming Complete.”

If either vacuum or vent checks are incomplete the system will display “Check fittings-Reprime,” with an appropriate code (i.e., 1., 2., 3.). If code 2 or 3 is encountered, the system will attempt to reprime once. See Troubleshooting section for additional information.

• Test Key in I/A Mode - If the Test key is pressed, the system performs charging as described in Charge Key Processing on the prior page. If the charge is successful, “Charge Complete” is displayed and the Charge status indicator changes from red to green.

• Test Key in Vit Mode - Priming, Vacuum check, and Vent check are performed in the Vit mode as described in Test key processing above.

• Test Key in Coag Mode - Test key is not allowed in

Pressing Test key again will activate Fill where both irrigation and reflux valves will be opened to achieve the most efficient air removal from the tubing lines and handpiece. Streaming irrigation solution can also be used to fill a test chamber or a beaker as needed. Fill will automatically stop after 30 seconds and it can be terminated earlier by pressing the Fill button or the Test key. The latter action will also initiate tuning/flow check sequence.

this mode.

• Test Key in Custom Mode - Test key is not allowed in this mode.

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• Tune Key Processing - After the system is primed, tuning can be performed. Tune key will be faded out if system is “Not Primed” or if the handpiece is not inserted. After successful completion of tuning, which takes approximately half a second, the system will automatically proceed to flow check. If the tuning and flow check are successful, “Tuning complete” appears and the Tune status indicator changes from red to green. If tuning or flow check is unsuccessful, see Troubleshooting section for additional information.

• Charge Key Processing (if Kelman

Steerable I/A

system is installed, and it is selected) - If the system is already primed, then charging of the Steerable I/A system is performed automatically following successful tune/flow check sequence. The system will test the Steerable I/A system and will verify the presence of a Steerable I/A handpiece. If charging of the Steerable I/A handpiece is successful, the"Charging Complete" message is displayed and the Charge status indicator changes from red to green.

• Clean Key Processing - Will clear any remaining fluid from system between cases and prior to turning off the machine.

• Stop Key Processing - Stop key returns user to the sub modes. The Stop key can be pressed at any time to stop priming, flow check, or cleaning. If unit is already primed, the system will remain primed when the Stop key is depressed.

WARNING!

Inadvertent actuation of TEST MODE while a handpiece is in the eye can create a hazardous condition that may result in patient injury.

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LEGACY

FOOTSWITCH

Functions within the operating modes of the unit are controlled by the operation of the footswitch (see Figure 1-35). Legacy® compatible footswitches all have one footpedal (treadle), and four momentary on/off switches (right and left horizontal, right and left vertical). In addition, both the Series 20000™* and Accurus

Legacy® footswitch types allow software control of

detents, and the Accurus

/Legacy® footswitch has a heel

switch.

Programmability of detents, if available for particular footswitch, is accessed only through the front panel. See Custom Mode: Footswitch. (It cannot be programmed using the remote control.)

Figure 1-36 and Tables 1-7 and 1-8 summarize footswitch operation for the various modes:

Footpedal (linear control) - The footpedal controls system functions and provides linear control of certain parameters. Its four possible operating positions are: 0 (standby), 1 (footswitch symbol on front panel displays yellow), 2 (footswitch symbol on front panel displays green), and 3 (footswitch symbol on front panel displays fuschia). The footpedal operating position is displayed in the display window.

Tension Adjustment Control - Controls the amount of spring tension on both the downstroke and return of the footpedal–turn clockwise to tighten, counterclockwise to loosen.

Left Horizontal Switch (reflux) - The left horizontal switch of the footswitch provides reflux. The reflux function is available in any mode except Coag or Custom, but the footpedal must be in position 0. Reflux pressure is a function of the irrigation bottle height. When this switch is depressed, the rectangle to the left of the Footswitch Position indicator on the front panel illuminates magenta. An outflow of gravity-fed irrigation solution is introduced into the aspiration line; this allows the surgeon to disengage any material that may become stuck in an aspiration port without having to manually squeeze the reflux squeeze bulb.

Right Horizontal Switch (continuous irrigation) - The right horizontal switch of the footswitch toggles continuous irrigation on and off (see the Irrigation Mode, Continuous Irrigation submode for further explanation).

Left Vertical Button ( IV pole down or steerable I/A) Use of the left vertical button is dictated by the settings indicated/made in the Custom: Footswitch front panel screen. If set to “None,” this button is ineffectual. If set to “IV Pole,” the left vertical button moves the IV pole down. If steerable I/A is available on the system, and “Steer I/A” is selected, pressing the button will bend the steerable I/A tip.

Tension Adjustment Knob

Left Horizontal/Vertical Switch

Figure 1-35 ACCURUS®/LEGACY® FOOTSWITCH

Footpedal

Right Horizontal/Vertical Switch

Heel Switch (not present on Series 20000™* footswitch)

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Right Vertical Button ( IV pole up or steerable I/A) -Use of the right vertical button is dictated by the settings indicated/made in the Custom: Footswitch front panel screen. If set to ‘None,” this button is ineffectual. If set to “IV Pole,” the right vertical button moves the IV pole up. If steerable I/A is available on the system, and “Steer I/A” is selected, pressing the button will straighten the steerable I/A tip.

Heel Switch - This feature is only available for the

Accurus®/Legacy® footswitch.

• Software V2.42 through V3.01: The heel switch

performs the function of the front panel or remote Memory key. The first press of the heel switch activates the memory menu; subsequent, closely spaced presses toggle between memories in an upward (1-2-3-4-Default-1) direction.

• Software V3.12 and above:

- If the heel switch is pressed for a duration shorter than 0.1 second, there is no action.

- Between 0.1 and 0.5 second the system advances to the next setting as programmed under the Customer/Footswitch/Heel menu.

- Longer than 0.5 second, the system goes back to the previous setting.

I/A

ANTERIOR VITRECTOMY/

ATIOP

ANTERIOR VITRECTOMY/

I/A CUTTER

COAGULATION

HYDROSONICS

(V3.01 and below)

®

OFF (position 0)

IRRIGATION (position 1)

IRR/ASPIRATION (position 2)

IRR/ASPIRATION (position 3)

OFF (position 0)

IRRIGATION (position 1)

IRR/CUTTING (position 2)

IRR/ASP/CUTTING (position 3)

OFF (position 0)

IRRIGATION (position 1)

IRR/ASPIRATION (position 2)

IRR/ASP/CUTTING (position 3)

OFF (position 0)

STANDBY (position 1)

POWER (position 2)

POWER (position 3)

OFF

(position 0)

IRRIGATION

(position 1)

PULSED U/S

(position 2)

PULSED U/S / PULSED INJECTION

(position 3)

PHACOEMULSIFICATION

AdvanTec

(V3.12 and above)

AdvanTec

(V3.12 and above)

AdvanTec

(V3.12 and above)

OFF (position 0)

IRRIGATION (position 1)

IRR/ASPIRATION (position 2)

IRR/ASP/ULTRASONICS (position 3)

OFF (position 0)

Irrigation (position 1)

IRR / Aspiration (position 2)

IRR / ASP / Ultrasonics (position 3; U/S power <NeoSoniX threshold)

IRR / ASP / Ultrasonics/NeoSoniX (position 3; U/S power ≥NeoSoniX threshold)

OFF (position 0)

Irrigation (position 1)

IRR / Aspiration (position 2)

IRR / ASP / Ultrasonics (position 3; NeoSoniX threshold >U/S power limit or NeoSonix amplitude = 0)

OFF (position 0)

Irrigation (position 1)

IRR / Aspiration (position 2)

IRR / ASP / NeoSoniX (position 3; NeoSoniX threshold = 0, U/S power = 0)

Figure 1-36 FOOTPEDAL TRAVEL BY MODE OF OPERATION

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Table 1-7 OPERATION BY MODE AND FOOTPEDAL POSITION FOR SOFTWARE VERSIONS 3.01 AND

BELOW

MODE 0 1 2 3 REFLUX

IRR: FOOTSWITCH STANDBY IRRIGATION IRRIGATION IRRIGATION YES NO

IRR: FREE FLOW IRRIGATION IRRIGATION IRRIGATION IRRIGATION NO NO

IRR: CONTINUOUS IRRIGATION IRRIGATION IRRIGATION IRRIGATION NO NO

HYDRO PANEL STANDBY IRRIGATION PULSED PULSED ULTRASONICS/ PULSED NO

HYDRO SURGEON STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ PULSED NO

U/S PHACO PANEL OR STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

U/S PULSE PANEL ASPIRATION ASPIRATION/

U/S PHACO SURGEON OR STANDBY IRRIGATION IRRIGATION/ IRRIGATION/

U/S PULSE SURGEON ASPIRATION ASPIRATION/ YES YES

U/S BIMODAL STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

SRGASP VARIABLE ASPIRATION FIXED ASPIRATION/

U/S BIMODAL STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

SRGVAC FIXED ASPIRATION/ FIXED ASPIRATION/

U/S BURST STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

PANEL ASPIRATION ASPIRATION/

U/S BURST STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

SURGEON ASPIRATION ASPIRATION/

IA/MIN PANEL OR STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

l/A MAX PANEL ASPIRATION ASPIRATION

I/A MIN SRGASP STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

OR VARIABLE ASPIRATION/ VARIABLE ASPIRATION/

I/A MAX SRGASP FIXED VACUUM LIMIT FIXED VACUUM LIMIT

I/A MIN SRGVAC STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

OR VARIABLE VACUUM LIMIT/ VARIABLE VACUUM LIMIT/

I/A MAX SRGVAC FIXED ASPIRATION FIXED ASPIRATION

I/A CAP VAC STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

(PANEL ONLY) ASPIRATION ASPIRATION

VIT ATIOP PANEL STANDBY IRRIGATION IRRIGATION/CUTTING IRRIGATION/CUTTING/ YES YES

VIT ATIOP SRG/ASP STANDBY IRRIGATION IRRIGATION/CUTTING IRRIGATION/CUTTING/ YES YES

VIT ATIOP SRG/VAC STANDBY IRRIGATION IRRIGATION/CUTTING IRRIGATION/CUTTING/ YES YES

VIT I/A CUTTER STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

PANEL ASPIRATION ASPIRATION/CUTTING

VIT I/A CUTTER STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

SRGASP ASPIRATION VARIABLE ASPIRATION/

VIT I/A CUTTER STANDBY IRRIGATION IRRIGATION/ IRRIGATION/ YES YES

SRGVAC ASPIRATION VARIABLE VACUUM/

COAG PANEL STANDBY STANDBY COAGULATION COAGULATION N/A NO

COAG SURGEON STANDBY STANDBY VARIABLE COAGULATION VARIABLE COAGULATION N/A NO

TEST N/A N/A COAGULATION COAGULATION N/A NO

CUSTOM PROGRAM STANDBY IRRIGATION IRRIGATION IRRIGATION N/A YES

ULTRASONICS PULSED INJECTION INJECTION

VARIABLE PULSED VARIABLE PULSED INJECTION

ULTRASONICS ULTRASONICS/

VARIABLE VACUUM LIMIT FIXED VACUUM LIMIT

(EXCEPT WHEN TUNING) (EXCEPT WHEN TUNING)

PULSED INJECTION

FIXED ULTRASONICS

VARIABLE ULTRASONICS

SINGLE BURST OF

ULTRASONICS

VARIABLE DUTY CYCLE

BURST ULTRASONICS

ASPIRATION

VARIABLE ASPIRATION/

FIXED VACUUM

VARIABLE VACUUM/

FIXED ASPIRATION

FIXED VACUUM/CUTTING

FIXED ASPIRATION/CUTTING

CONT IRR

OPERATION AT FOOTPEDAL POSITION FTSW

Venting occurs when the footpedal transitions from position 2 to position 1.

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Table 1-8 OPERATION BY MODE AND FOOTPEDAL POSITION FOR SOFTWARE VERSIONS 3.12 AND

ABOVE

MODE SUBMODE CONTROL FLOW 1 2 3 REFLUX

OPERATION AT FOOTPEDAL POSITION

CONT IRR

AdvanTec Visco Panel Linear Irr Irr/ Lin Asp

Fixed Irr Irr/ Fixed Asp Yes Yes

Surgeon Linear Irr Irr/ Lin Asp

Fixed Irr Irr/ Fixed Asp Yes Yes

Phaco Panel Linear Irr Irr/ Lin Asp

Fixed Irr Irr/ Fixed Asp Yes Yes

Surgeon Linear Irr Irr/ Lin Asp

Fixed Irr Irr/ Fixed Asp Yes Yes

Pulse Panel Linear Irr Irr/ Lin Asp

Fixed Irr Irr/ Fixed Asp Yes Yes

Surgeon Linear Irr Irr/ Lin Asp

Fixed Irr Irr/ Fixed Asp Yes Yes

Burst Panel Linear Irr Irr/ Lin Asp

Fixed Irr Irr/ Fixed Asp Yes Yes

I/A/ Short Pulsed Fixed U/S and/or NeoSonix™*

I/A/ Short Pulsed Linear U/S and/or NeoSonix™*

I/A/ Continuous Fixed U/S and/or NeoSonix™*

I/A/ Continuous Linear U/S and/or NeoSonix™*

I/A/ Pulsed Fixed U/S and/or

I/A/ Pulsed Linear U/S and/or

I/A/ Single U/S and/or

NeoSonix™*

Burst

Yes Yes

Surgeon Linear Irr Irr/ Lin Asp I/A/ Fixed U/S and/or NeoSonix™* Bursts Yes Yes

Fixed Irr Irr/ Fixed Asp with Reducing Off-Time Yes Yes

U/S Phaco Panel Fixed Irr Irr/ Fixed Asp I/A/ Continuous Fixed U/S Yes Yes

Surgeon Fixed Irr Irr/ Fixed Asp I/A/ Continuous Linear U/S Yes Yes

Pulse Panel Fixed Irr Irr/ Fixed Asp I/A/ Pulsed Fixed U/S Yes Yes

Surgeon Fixed Irr Irr/ Fixed Asp Yes Yes

BiModal Panel Surg Asp Irr Irr/ Lin Asp I/A/ Continuous Fixed U/S Yes Yes

Surg Vac Irr Irr/ Fixed Asp,

Lin Vac

I/A/ Continuous Fixed U/S

Yes Yes

Surgeon Surg Asp Irr Irr/ Lin Asp I/A/ Continuous Linear U/S Yes Yes

Surg Vac Irr Irr/ Fixed Asp,

Lin Vac

I/A/ Continuous Linear U/S

Yes Yes

Burst Panel Fixed Irr Irr/ Fixed Asp I/A/ Single U/S Burst Yes Yes

Surgeon Fixed Irr Irr/ Fixed Asp

I/A/ Fixed U/S Bursts with Reducing Off-Time

Yes Yes

I/A Min, Max Panel Irr Irr/ Fixed Aspiration Rate Yes Yes

SurgAsp Irr Irr/ Linear Aspiration Rate Yes Yes

SurgVac Irr Irr/ Fixed Aspiration Rate / Linear Vacuum Limit Yes Yes

CapVac Panel Irr Irr/ Fixed Aspiration Rate Yes Yes

Vit ATIOP Panel Irr Irr/ Cutting Irr/ Cutting/ Fixed Asp/ Fix Vac Yes Yes

SurgAsp Irr Irr/ Cutting Irr/ Cutting/ Lin Asp/ Fix Vac Yes Yes

SurgVac Irr Irr/ Cutting Irr/ Cutting/ Fixed Asp/ Lin Vac Yes Yes

I/A Cutter Panel Irr Irr/ Fixed Asp Irr/ Fix Asp/ Fixed Vac/ Cutting Yes Yes

SurgAsp Irr Irr/ Fixed Asp Irr/ Lin Asp/ Fixed Vac/ Cutting Yes Yes

SurgVac Irr Irr/ Fixed Asp Irr/ Fix Asp/ Lin Vac/ Cutting Yes Yes

Coag Panel -- Fixed Coagulation No No

Surgeon -- Lin Coagulation No No

Test -- Coagulation No No

Custom Irrigation No Yes

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HANDPIECE AND TIP DESCRIPTIONS

Different handpieces and tips are required for each mode and function. Following is a general description of the various handpieces and tips required to perform I/A and Phaco procedures.

Irrigation Handpiece and Tips

The Irrigation handpiece supplies irrigation only and is usually the first handpiece used by the surgeon after the incision is made. The handpiece and tip deliver irrigating solution into the anterior chamber to maintain chamber pressure. The handpiece (see Figure 1-25) has a hollow handle, one end of which is connected to the irrigation tubing. The other end, depending upon its intended use, is connected to one of the following tips:

• Irrigating Cystotome - used to perform the anterior capsulotomy.

• Kratz Irrigating Scraping Tip - a roughened irrigation tip used to polish the posterior capsule.

• Cyclodialysis Cannula - used to prolapse a soft lens nucleus into the anterior chamber.

Ultraflow™* SP (single-piece): The Ultraflow™* SP consists of a single-piece handpiece and I/A tip with a built-in metal infusion sleeve. Various tip configurations are available.

O RINGS

Straight Tip

 Curved Tip  45° Tip  90° Tip 

120° Tip

Figure 1-38 ULTRAFLOW™* HANDPIECE AND .3mm

TIPS (handpiece shown with straight tip)

Figure 1-37 IRRIGATION HANDPIECE AND TIPS

Ultraflow™* I/A Handpieces and Tips

The Ultraflow™* handpiece is used in I/A mode to remove cortical material via aspiration while maintaining chamber pressure by irrigation. Two styles of

Ultraflow™* I/A handpieces are available:

Ultraflow™* IT (interchangeable tips):

The Ultraflow™* IT consists of a handpiece body and five interchangeable tips. These tips do not require an adapter or infusion sleeve as they contain a built-in metal infusion sleeve. If silicone infusion sleeves are preferred, an Ultraflow™* IT handpiece body and STTL threaded tip adapter can be used with reusable I/A tips.

O RING EXTRACTOR

LARGE O RINGS

SMALL O RINGS

Figure 1-39 ULTRAFLOW™* O-RING TOOL

Figure 1-40 ULTRAFLOW™* SP HANDPIECE

(handpiece shown with .3 mm 45˚ tip)

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Reusable I/A Tips

The I/A tips below can be used with reusable I/A handpieces and threaded tip adapters (Note the band markings on the tips that identify tip aperture):

• Ultraflow™* I/A handpiece with threaded tip adapter attached onto handpiece.

• Ultraflow™* S/P I/A threaded handpiece.

0.2 mm Irrigation/Aspiration Tip

0.3 mm Irrigation/Aspiration Tip

0.5 mm Irrigation/Aspiration Tip

0.7 mm Irrigation/Aspiration Tip

LARGE O-RING SMALL O-RING

Ultrasonic Handpiece in U/S BiModal Mode

The Ultrasonic BiModal mode allows the operator to control both U/S power and aspiration in Surgeon Aspiration Control, or both U/S power and vacuum limit in Surgeon Vacuum Control. Only TurboSonics® U/S tips are to be used in this mode.

WARNING!

I/A tips are not to be used in any STTL U/S mode.

Ultrasonic Handpieces

The Ultrasonic handpieces integrate irrigation, aspiration and ultrasonics. The three functions of the U/S mode enable the surgeon to simultaneously maintain or inflate the anterior chamber, emulsify the cataractous lens, and aspirate the lens material from the eye.

375-40 Ultrasonic Handpiece

Figure 1-41 REUSABLE I/A TIPS AND THREADED

TIP ADAPTOR

WARNING!

Exceeding the recommended level of 100 mmHg with a 0.5 mm or 0.7 mm I/A tip may cause anterior chamber shallowing and/or incarceration or tearing of the posterior capsule.

This handpiece is colored silver and is used for ultrasonic applications on the STTL with the standard Series

20000™* TurboSonics® tips or the TurboSonics

MicroTip series tips.

Mackool** 375-40 Ultrasonic Handpiece

This handpiece is colored gold and is used for ultrasonic applications on the STTL with the Series 20000™* TurboSonics® Mackool** tips.

The U/S handpieces require no disassembly other than the removal of the disposable tubing, the ultrasonic tip, and the infusion sleeve with bubble suppression insert.

BUBBLE SUPPRESSION INSERTINFUSION SLEEVE

NOT LESS THAN

1.0mm (.039 in.)

PORTHOLE

SLEEVE

Figure 1-42 ULTRASONIC HANDPIECE (375-40)

WITH INFUSION SLEEVE AND BUBBLE SUPPRESSION INSERT

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WARNINGS!

Do not operate ultrasonic, ATIOP, HydroSonics™* , or NeoSonix™* handpieces unless the tip is immersed in BSS® sterile irrigating solution or distilled water or is in surgical use. Irreparable damage will result immediately if run dry. Do not test the handpiece unless the tip is immersed in sterile, distilled water or unless there is a test chamber attached and filled with irrigating solution.

Use of the ultrasonic, NeoSonix™* or HydroSonics™* handpiece in the absence of irrigation flow and/or in the presence of reduced or lost aspiration flow can cause excessive heating and potential damage to the cornea and other tissues.

Ensure that test chamber is filled with BSS sterile irrigating solution before tuning handpiece. Tuning handpiece dry will result in premature tip failure and breakage.

Use of an ultrasonic handpiece other than the 375-40, the Mackool** 375-40, or the NeoSonix™* is not permitted, and may result in patient injury, including potential shock hazard to patient and/or operator.

The U/S tips supplied in the Series 20000™*

Turbosonics® PEA pak are only to be used on

the 375-40 U/S or NeoSonix™* handpiece. The U/S tips supplied in the Series 20000™*

Mackool** Turbosonics® PEA pak are only to be

used on the Mackool** 375-40 ultrasonic handpiece. They cannot be used with a

NeoSonix™* handpiece.

WARNING!

The HydroSonics™* tip is extremely delicate; use care when handling.

AUTO INJECTOR

HANDPIECE

CAP

CONNECTOR

Figure 1-43 HYDROSONICS™* HANDPIECE

NeoSonix™* Handpiece

NeoSonix™* handpieces serve the same purpose as the U/S handpieces and integrate all functions of ultrasonic handpieces and in addition provide mechanical oscillations. This handpiece is colored silver and is used for ultrasonic applications on the STTL with the 1.1 mm

Series 20000™* TurboSonics® tips or the TurboSonics

0.9 mm MicroTip series tips, including Flared and/or ABS tips. The NeoSonix™* handpieces require no disassembly other than the removal of the disposable tubing, the ultrasonic tip, and the infusion sleeve with bubble suppression insert .

HydroSonics™* Handpiece and Tip (V3.01 and below)

The HydroSonics™* handpiece combines ultrasonic tip advancement with automatic injection of BSS® sterile

irrigating solution for hydrodissection and softening of

cataractous lens before emulsification. The handpiece accommodates a specially designed 29-gauge

ltra

HydroSonics™* tip and includes a luer connector for attachment of the autoinjector. The 29-gauge ultrasonic tip,

Figure 1-44 NeoSonix™* HANDPIECE

a specially designed single-purpose tip wrench, a test chamber, and a six-foot length of tubing with luer-fitted syringe are supplied in the HydroSonics™* Accessory Pak.

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ATIOP Handpiece

The ATIOP handpiece (Advanced Technology Irrigating Ocutome™* Probe) is a sterile,

disposable, vitreous cutter intended for single use only. The probe is designed with a pre-attached irrigation sleeve to allow irrigation, aspiration, and cutting. The variable port opening on the probe is close to the tip allowing it to cut a variety of different tissues as well as cut closer to the tissue. The handpiece is completely preassembled and requires no lubrication or cleaning prior to surgery.

Port Opening Adjustments:

• The port size can be varied by rotating the adjustment barrel while holding the white probe body stationary.

• The port is closed when the screw is completely tightened clockwise.

• The port is opened to its maximum size of 1.00 mm by turning the adjustment screw counter-clockwise.

• The probe’s port size is adjustable between 0.00 mm and 1.00 mm.

Coagulation Handpieces

Reusable Bipolar Coagulation Forceps are lightweight and ergonomically designed to reduce hand fatigue as well as to provide precise control and safety. The forceps are available in high-conductive non-stick alloy, titanium, or disposable configurations. They are also available with a wide variety of tip styles.

Figure 1-46 4 INCH NADLER COAPTATION, 0.4 mm

TIP

Disposable Bipolar Coagulation Brushes are available in a wide variety of configurations: straight, curved, 20-gauge, 23-gauge, tapered and widestroke. All disposable bipolar accessories are available both with and without cords. Also available are reusable and disposable bipolar cords.

CAUTION

The port always remains in an open position in footpedal position 0 or 1.

WHITE LUER (IRRIGATION)

OCUTOME

PORT

ADJUSTMENT

BARREL

Figure 1-45 ATIOP HANDPIECE

BLUE LUER

(ASPIRATION)

CLEAR LUER

(TO MACHINE)

Figure 1-47 DISPOSABLE BIPOLAR BRUSH

Coagulation Cords are available in disposable and reusable configurations.

®

Figure 1-48 COAGULATION CORD

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Steerable I/A Handpiece

Irrigation, aspiration, and pneumatic actuation tubing are connected to the Steerable I/A handpiece. The Steerable I/A handpiece is designed to steer the Steerable I/A tip from a straight position to a fully bent position. The steering mechanism is controlled by the vertical switches on the Legacy

footswitch, and actuated through tubing

connected to the Steerable I/A handpiece.

The Steerable I/A handpiece is reusable and can be autoclaved per the instructions in the sterilization section of this manual.

WARNING!

Use only blue or purple TurboSonics® infusion sleeves with the Steerable I/A handpiece and tip.

Steerable I/A Tip

The Legacy

Steerable I/A tip is intended for a maximum of 10 reuses, and can be deflected continually from a straight position to a fully bent position. A 0.3 mm aspiration hole is located approximately 60 degrees from the axis of the tip. The Legacy® Steerable I/A tip is packaged non-sterile in a tip holder. Follow the sterilization procedure in the Operator's Manual for sterilization of the tip prior to using the first time and prior to each use. In between each case the cleaning procedure must be followed, and the tip should be stored in the Steerable I/A tip holder.

WARNING!

Extreme care must be used when handling the steerable I/A tip as the tip is fragile. Do not actuate the tip manually. Actuate only while on the handpiece as a system.

The steerable tip is designed to be used only with the steerable handpiece. It will not operate with other I/A handpieces.

Figure 1-49 STEERABLE I/A HANDPIECE

Handle tip by hub (shown)

Tip

Holder

Figure 1-50 STEERABLE I/A TIP

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CONSUMABLE PAK CONFIGURATIONS

Consumable items used with the STTL during surgery are designed to be used once and then discarded unless labeled otherwise. The family of STTL paks are referred to as Series 20000™* TurboSonics® and consist of various combinations of cassettes, Ultrasonic (U/S) tips, infusion sleeves and other components. All STTL paks contain Directions for Use (DFU). It is important to read and understand them prior to use.

The U/S tips are hollow and made of medical grade titanium alloy. They are attached to the 375/40 handpiece and deliver ultrasound energy to the cataract assisting in its removal and aspiration. Depending on the needs and

Standard Series U/S Tips

technique preferred by the surgeon, various styles of tips and tip bevels are available. Various tip styles are color coded. Refer to the pak DFU for details on color coding.

The infusion sleeves are attached to the handpiece and provide irrigation to the anterior chamber during surgery. The infusion sleeves must be matched to the specific U/S tip type. Infusion sleeves used in the ultrasound portion of the procedure contain a BSI (bubble suppression insert).

A description of the U/S tips styles and cassettes is as follows:

Standard Series U/S Tips

This is the original 1.1 mm tip.

MicroTip Series U/S Tips

The MicroTip series tips are designed to allow entry through a smaller incision. They have an outside diameter of 0.9 mm.

Kelman™* High Efficiency Tips

Epsilon™* TurboSonics

Mackool** Series U/S Tips

Aspiration Bypass System (ABS

Tips

Mackool** Series U/S Tips

The Mackool** tips are designed to allow entry through a tighter incision. They come with an inner polymer sleeve designed to improve thermal performance of the system.

ABS

Series U/S Tips

The ABS® tips contain a small hole in the distal portion of the tip's wall. This helps to maintain flow through the system even during occlusion of the tip's main port.

polymer tubing

Mackool** Round

)

ABS™* Round

Mackool** Kelman™*

bypass hole

ABS™* Kelman™*

ABS™* Flared ABS™* Regnier

Figure 1-51 HANDPIECE TIP STYLES

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Infusion Sleeves

Infusion sleeves provide a fluid path for infusion of

or BSS Plus® into the eye when used with the 375/

BSS 40 series U/S, NeoSonix™*, or I/A handpieces (Ultraflow™* and Steerable I/A).

1.1 mm Infusion Sleeves The 1.1 mm infusion sleeves are designed to work with

1.1 mm phacoemulsification tips, for example with 1.1 mm ABS and 1.1 mm Flared tips. The 1.1 mm infusion sleeves are colored blue.

0.9 mm Infusion Sleeves The 0.9 mm infusion sleeves are designed to work with

0.9 mm phacoemulsification tips, for example with 0.9 mm ABS and 0.9 mm Flared tips. The 0.9 mm infusion sleeves are colored purple.

High Infusion Sleeves High Infusion Sleeves have a larger shaft diameter than traditional infusion sleeves. The larger shaft diameter of the high infusion sleeves is compatible with the larger incision (3.4 mm recommended), allowing for single incision surgery for a wider variety of IOL implants. Reduced resistance to the irrigation flow resulting from this larger shaft diameter creates a more stable anterior chamber. High Infusion Sleeves are available in semitransparent purple, to be used with 0.9 mm MicroTips, and semi-transparent blue, to be used with 1.1 mm standard tips.

Standard Series Cassette

This is the original Series 20000™* cassette. The aspiration line has a blue stripe. The standard cassette is packaged with various U/S tips.

MaxVac® Series Cassette

The MaxVac® cassette is designed to allow use of higher vacuum settings than those with the standard cassette. The aspiration line has a red stripe. The MaxVac

cassette is packaged with various U/S tips. The Microtip U/S tip and MaxVac® cassette pak combination is referred to as Microtip MVS™*.

NOTE ON PACKAGE LABELING: Be sure to read all package label material printed on the consumable paks prior to their use.

WARNING!

Use 0.9 Microtip style tips with purple Microtip style infusion sleeves. Use 1.1 mm Standard Series tips with blue standard infusion sleeves. Each configuration of consumable components requires adjustment of machine settings. Mismatch of consumable components and use of settings not specially adjusted for a particular combination of consumable components may create a patient hazard.

Series 20000™* I/A Family of Paks

When performing extracapsular extractions, one of the Series 20000™* I/A family of paks is used. This pak does not include an ultrasonic tip. It contains:

• Infusion Sleeve: This single piece fits over the I/A tip and provides irrigation into the eye and protection to surrounding tissues. I/A tips are separate catalog items and are not included in this pak.

• Standard Tip Wrench: A wrench is required to securely fasten the I/A tip to the handpiece assembly, and also to remove the tip when the procedure is completed.

• Test Chamber: The test chamber is a small elastomeric cap that fits over the tip to facilitate a functional check of the instrument prior to surgery.

• Cassette: This single assembly consists of irrigation (clear) and aspiration (striped) manifolds, and a drainage bag (maximum capacity of 500 cc). Inserting the cassette into the console establishes fluidics system connections, allowing quick and easy surgical setup.

• Tray Support Cover: The tray support cover is a sterile bag that slips around the tray support and extender before the plastic instrument tray is clipped down into place. It forms a pouch with the tray arm to provide storage of tubing during surgery.

• Directions for Use (DFU): Instructions for removal and setup of pak contents.

Series 20000™* TurboSonics

When performing a phacoemulsification procedure, one of the Series 20000™* TurboSonics® PEA family of paks with ultrasonic tip is used. This pak contains all the items listed in the I/A Pak above plus the following:

• Ultrasonic Tip and Tip Wrench/Assembly: The emulsifying tip attaches to the ultrasonic handpiece. Securely tighten the tip with the all-in-one tip wrench/ assembly. Several tip designs are available (see Figure 1-38).

PEA Family of Paks

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• Infusion Sleeve/BSI: This sleeve, with bubble suppression insert, is provided for the TurboSonics handpiece. It fits over the ultrasonic tip and provides irrigation into the eye while protecting the surrounding tissue.

• Test Chamber: An additional test chamber is supplied to test the U/S handpiece prior to surgery.

HydroSonics™* Autoinjector Accessory Pak (V3.01 and below)

The Series 20000™* HydroSonics™* Autoinjector Accessory Pak is for use with the HydroSonics™* handpiece to facilitate hydrodissection and softening of the cataract prior to phacoemulsification. It contains:

• HydroSonics™* Tip: The 29-gauge HydroSonics™* tip attaches to the HydroSonics™* handpiece. It should be securely tightened with the tip wrench.

• Tip Wrench: A wrench is required to securely fasten the HydroSonics™* tip to the handpiece assembly and also to remove the tip when the procedure is over. Insert tip into the rounded hole side of the tip wrench for proper tightening.

Do not use paks that have exceeded the expiration date.

Sterile disposable medical devices should not be reused! (Accreditation Manual for Hospitals,

1982.) These components have been designed for one time use only; do not reuse.

The equipment used in conjunction with the Alcon Surgical Series 20000™* disposables constitutes a complete surgical system. Use of disposables other than Alcon Surgical Series 20000™* disposables may affect system performance and create potential hazards, and if it is determined to have contributed to the malfunction of the equipment under contract, could result in the voidance of the contract and/ or invoicing at prevailing hourly rates.

In all cases, the instrument setup instructions contained in the Operator's Manual should be thoroughly understood prior to using any of the

Series 20000™* cassette pak configurations.

WARNINGS!

• Six-foot Length of Tubing with Luer Fittings: One end attaches to the injector body, the other end attaches to the Vit port.

• Vented Test Chamber: Required to test HydroSonics™* handpiece prior to surgery.

• 10 cc Syringe: This is a priming aid.

Remote Control Aseptic Transfer (CAT) Packaging

If the cordless remote control is to be used in a hand-held fashion, the CAT is utilized:

• Pouch: Used to hold the remote control and ensure that sterile field is maintained.

• Cardboard Sleeve: Used to guide the remote control into the sterile pouch.

ERROR PROCESSING

The STTL system divides error processing into three categories: Faults, Errors, and Advisories:

• Faults are the most critical problems. When a fault exists, a message and the fault code are displayed on the screen (red background with a white stop sign). The machine prohibits ultrasound, coagulation, and fluidic operations until the fault is corrected.

•

Errors are messages generated by the system in order to report a specific problem. When an error exists a message and error code are displayed on the screen (yellow background in text window), and they remain in the window until the operator acknowledges the condition by pressing the Continue key.

•

Advisories indicate that operator action may be required. When an advisory exists a message is displayed on the screen (green or blue background in text window).

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QUICK SYSTEM SETUP AND PROGRAMMING FOR V3.01 AND BELOW

Standard Priming Sequence

1 Ensure system is in IRR-FTSW mode. 2 Insert cassette. 3 Fluff out top part of draining bag. 4 Uncoil tubing. 5 Spike and hang BSS bottle. 6 Fill drip chamber 1/2 to 3/4 full. 7 Connect blue and white luer fittings together. 8 Press Test button two times (first time for test screen,

second time to begin priming). System will take approximately 90 seconds to prime and test both

vacuum and venting. 9 Plug handpiece into system. 10 Screw the phaco tip and irrigation sleeve onto the

phaco handpiece. 11 Connect the blue and white luer fittings to the phaco

handpiece. 12 Fill the test chamber, then slide it over tip and sleeve

of handpiece. 13 Place handpiece on instrument tray. 14 Select U/S mode. 15 Press the Test button and then press the Tune icon on

the screen. The system will take approximately 25

seconds to tune the handpiece and then perform a

flow test to verify there is no obstruction in the phaco

handpieces irrigation and aspiration lines. If no

problems were encountered the system will display a

green primed and green tune message on top left of

display screen.

Alternate Priming Sequence

1 Ensure system is in IRR-FTSW mode. 2 Insert cassette. 3 Fluff out top part of draining bag. 4 Uncoil tubing. 5 Spike and hang BSS bottle. 6 Fill drip chamber 1/2 to 3/4 full. 7 Connect blue and white luer to the phaco handpiece. 8 Plug handpiece into system.

9 Screw the phaco tip and irrigation sleeve onto the

phaco handpiece.

10 Fill the test chamber, then slide it over tip and sleeve

of handpiece. 11 Place handpiece on instrument tray. 12 Select U/S mode. 13 Press the test button and then press the Prime icon on

the screen. The system will take approximately 2

minutes to prime the cassette, test vacuum and

venting, tune the phaco handpiece, and then perform

a flow test to verify there is no obstruction in the

phaco handpieces irrigation and aspiration lines. If no

problems were encountered the system will display a

green primed and green tune message on top left of

display screen.

STTL Memory Programming/Changes

Most problems related to memory loss can be resolved by educating the operator about how to program the memories, with an emphasis on making changes to an existing memory. By advising the operator to follow the steps below many complaints can be avoided.

1 Press the [Custom] icon. 2 Select the Doctor’s name whose settings need

changing. 3 Press the [Exit] icon. 4 Press the [Memory] icon and select the memory

number to be changed (this is where many operators

error). 5 To change the operating mode settings, select the

operating mode(s) then make the setting change(s). 6 Press the [Custom] icon. 7 To change the custom modes, select the custom

mode(s) then make the setting change(s). 8 After changing the settings, make certain that the

system is in the Custom:Program mode screen. 9 Press the memory number [Store Memory] for the

memory that was changed. 10 Verify that the doctor's name and memory number

whose settings were changed is displayed in the blue

box located in the upper right of the display. 11 Press the [Yes] icon to the question “Confirm Store

Memory?”

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SECTION TWO

THEORY OF OPERA TION

The theory of operation includes a system overview and PCB (Printed Circuit Board) level theory. The PCB theory is accompanied by detailed block diagrams located at the end of this chapter on foldout pages (11" x 17"). The figure number for these block diagrams is referenced as a foldout (example: Figure FO-1). In some cases, the theory goes into more detail than shown on the block diagrams. When this occurs, refer to the schematic diagrams located in Section Six. Schematics supersede block diagrams in cases of an inconsistency.

SYSTEM OVERVIEW

The STTL uses a modular design where each major function is divided into a separate subsystem which is controlled by the Host System. These subsystems consist of the following: Front Panel, Fluidics (includes Anterior Pneumatics module), and Phaco. Assemblies



outside these subsystems include the Remote Control, I/V Pole, Footswitch, and the Power Supply. Figure 2-1 illustrates the subsystem locations. Refer to System Interconnect drawing 200-0002-801, located in Section Six-Schematics, for subsystem/module interconnections.

Figure 2-2 is an overall block diagram of the STTL. The Host System is the system master and is controlled by real-time, event driven, preemptive, and finite state system software which is resident in program memory located on the CPU PCB. Inter-module connections are made through the System Backplane PCB which also distributes all Power Supply voltages to the system. The Multifunction PCB acts as the interface between the subsystems and the Host. The Video PCB provides display data direct to the Liquid Crystal Display (LCD).

The Fluidics, Phaco, and Front Panel

subsystems contain their own

microcontrollers (80C196) and

system software that acquire

real-time data critcal to system operation. Each subsystem is a slave to the Host and communicates to the CPU via the Universal Asynchronous Receiver/



-

Transmitter (UART)

located on the Multifunction PCB.

PHACO SUBSYSTEM

SUPPLY



HOST SYSTEM

REAR VIEW



ANTERIOR PNEUMATIC

I/V POLE PCB &



MOTOR



MODULE

FRONT VIEW

Figure 2-1 Subsystem Locations

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

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FLOPPY

DRIVE

STANDBY

SWITCH

POWER

SUPPLY

+5 V

+12 V

+13.75 V

+15 V

-15 V +24 V +85 V

FAN

FOOTSWITCH

FSUP/SPRING

HOST SYSTEM

(SYSTEM BACKPLANE)

CPU 

PCB

SWITCHES:

SIDE,

TILT-SAFE,

FAIL

OPTICAL

ENCODER

DETENT

MOTOR

MULTI-

FUNCTION

PCB

UART

I/V

POLE

PCB

OPT

SWTCH

VIDEO

PCB

1 2

PWR

VIDEO PIXEL DATA

TX/RX

PWR

TX/RX

PHACO

+85 V

PWR

TX/RX

CONTROL

STEERABLE I/A

CONTROL PCB

(Optional Feature)

When LCD PN 088-031 is used, the Inverter is located on the Front Panel Control PCB. When LCD PN 200-1836-001 or 200-1721-001 is used, the Inverter is located on a separate PCB.

INVERTER PCB

TOUCH SCREEN

FRONT PANEL

CONTROL

PCB

COLOR

LED

LAYER

AND 

SWITCHES

LCD

80C196

BACKLIGHTS

REMOTE

DISPLAY

INVERTER

PCB

FLUIDICS SUBSYSTEM

FRONT PANEL SUBSYSTEM

(FLUIDICS BACKPLANE)

FLUIDICS

CONTROL

PCB

80C196

XDCR

PCB

PHACO SUBSYSTEM

(PHACO BACKPLANE)

U/S DRIVER PCB

PCB

80C196

CAUTERY PCB

FAN

PLUNGER SWITCHES

SOLENOIDS

ASP MTR

CASS. SWITCHES

ANTERIOR

PNEUMATIC ASSY

HANDPIECE

CONNECTOR

PANEL

VIT

U/S 1

U/S 2 U/S 3 (older systems)

COAG

STR I/A

MTR

Figure 2-2 System Block Diagram (non-AdvanTec system shown)

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POWER SUPPLY

The Power Supply used in the STTL is a vendor supplied product. Refer to Table 1-1 for technical specifications and operating parameters.

COMMON INTERFACE SIGNALS

Figure 2-3 shows the common interface signals between the master CPU and the subsystems. Power is distributed from the Power Supply through the System Backplane to the various subsystems with +85 V unique to the Phaco Subsystem. RXD and TXD are the serial communication lines from the Host to the subsystems. PEDALUP, TEST*, RESET*, and DISABLE are “hard” system control signals which override normal subsystem operation as follows:

PEDALUP - This is a surgeon controlled safety interlock feature that enables the surgeon to hardware disable all crucial patient contact functions when activated. When the STTL footswitch pedal is in the

“up” position, contact is made with a switch in the footswitch resulting in the PEDALUP signal being sent to all subsystems. When the subsystems receive this signal the various devices controlled by a particular subsystem (i.e. handpieces, peristaltic pump stepper motor) are disabled.

TEST* - This signal overrides the PEDALUP signal and is used in the TEST functions to prime, tune, and purge the system.

RESET* - Forces the subsystem control processors into reset.

DISABLE - Disables the patient contact devices controlled by a subsystem.

These signals and how they control each subsystem are discussed in further detail in each subsystem theory of operation.

HOST SYSTEM

SYSTEM BACKPLANE PCB

CPU PCB



Figure 2-3. CPU-Subsystem Interface

FUNCTION

MULTI-

PCB

UART

+85 V

(PHACO ONLY)

+24 V

-15 V

+15 V

+13.75 V

+12 V

+5 V RXD TXD

PEDALUP

TEST*

RESET*

DISABLE

 FRONT PANEL,

FLUIDICS, PHACO,

or STEERABLE I/A

SUBSYSTEM

BACKPLANE PCB

CONTROL

PCB

80C196

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SUBSYSTEM KERNEL DESIGN

The purpose of the STTL Subsystem Kernel design is to allow common hardware and one common bootstrap loader program for all subsystems. The term "kernel" refers to the specific components common to each subsystem controller PCB. Figure 2-4 illustrates the subsystem kernel design used by the Fluidics, Phaco, and Front Panel subsystems. It consists of five main components as follows: 1) Intel 80C196 Control Processor, 2) Revision and Type Detect circuit, 3) PSD301, 4) 32K x 8 Flash EEPROM, and 5) 8K x 8 Static RAM.

80C196 CONTROL PROCESSOR

The 80C196 controls each subsystem and communications with the Host System.

REVISION/TYPE DETECT CIRCUIT

This circuit uses a resistor divider network to set a voltage level associated with the particular revision of all PCBs contained within the subsystem. The voltage is detected by the 80C196 which reports subsystem type and revision level to the Host. The circuit consists of an 8-to-1 analog multiplexer, an Op Amp buffer, and protection diode.

PSD301 PROGRAMMABLE SYSTEM DEVICE

The PSD301 Programmable System Device contains 32K x 8 of EPROM which stores the bootstrap loader program. The bootstrap loader space is 8K bytes in size and located from 2000H to 3FFFH in the subsystem memory map.

SERIES 20000

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LEGACY

Although each subsystem bootstrap loader program is identical, each subsystem requires its own PSD301 programmed for that subsystems specific I/O requirements.

FLASH EEPROM

The Flash EEPROM holds the downloaded operational code used by the subsystem during operation. The 12 V program/erase voltage to the EEPROM is controlled by the LP2951. The LP2951 is a switch controlled by the 80C196 to safely select the EEPROM for program/erase, regulate the program/erase voltage, and supply feedback to the processor if there is a program/erase voltage error.

STATIC RAM

All subsystems require a varying amount of static RAM in order to operate. The subsystem kernel provides 8K bytes of static RAM with an available expansion space of 8K bytes for a total of 16K bytes. The bootstrap loader program maintains and verifies 8K bytes of static RAM before indicating to the Host that the subsystem is ready for download.

BOOTSTRAP LOADER PROGRAM

The bootstrap loader program verifies software integrity of all installed operational programs within the subsystem, reports software and PCB revision levels to the master CPU, and handles downloading of subsystem operational software to the Flash EEPROM.

FLUIDICS, FRONT PANEL, OR PHACO CONTROLLER PCB

ADDRESS BUS (0-15)

PROGRAMMABLE

READY

DATA BUS (0-7)

CONTROL

PROGRAM/ERASE

STATUS

SYSTEM

DEVICE PSD301

PCB REVISION 

AND 

TYPE DETECT

CIRCUIT

80C196

CONTROL

PROCESSOR

STATUS

P1 (0-2)

Figure 2-4 Subsystem Kernal Block Diagram

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12 V

LP2951

SWITCH

32K x 8 FLASH

EEPROM

8K x 8

STATIC RAM

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HOST SYSTEM

The Host System is the control center of the STTL and consists of the CPU PCB, Multifunction PCB, and the Video PCB (see Figure 2-5). These PCBs are connected directly to the System Backplane PCB and communicate

with each other via the ISA (Industry Standard Architecture) bus. The Host System controls the three subsystems (Front Panel, Fluidics, and Phaco) and has the capability of controlling up to eight subsystems. It operates similarly to any personal computer with the Video and Multifunction PCBs handling the special input/output (I/O) requirements of the system.

SYSTEM BACKPLANE

CPU 

PCB*

128K

SRAM

4MB

FLASH

EPROM

FLOPPY

DRIVE

ISA BUS

VIDEO

PCB

FLAT PANEL CNTLR

POWER

SUPPLY

UART

MULTI-

FUNCTION

PCB

STAND-BY

SWITCH

FRONT

PANEL

SUBSYSTEM

FLUIDICS

SUBSYSTEM

PHACO

SUBSYSTEM

SPKR

IV POLE ASSY

FTSW

* The AdvanTec CPU (software V3.12 and higher) does not have a SRAM or Flash EPROM, it uses one 8 MB Compact Flash card.

Figure 2-5 Host Subsystem

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CPU PCB

The CPU PCB is built around a microprocessor operating on a DOS platform. The floppy drive is connected directly to the CPU PCB and is used to upgrade system software. System software is downloaded to 1 MB of Flash EPROM which acts as a system “hard drive”. This EPROM is electrically erasable which enables the system to install software upgrades via the floppy drive instead of replacing the EPROMs. The CPU PCB also contains 128K of battery-backed SRAM to store position saved set-ups (doctor’s settings).

NOTE: The AdvanTec CPU (software V3.12 and higher) does not have a SRAM or Flash EPROM, it uses one 8 MB Compact Flash card.

Upon power-up, the CPU performs the Power On Self-Test (POST) common to all DOS based systems. After the CPU successfully performs the initial boot cycle, the system software is executed and the system will boot-up in the default mode (IRR:Footswitch mode). If an error occurs during the initial boot cycle, a POST error code will be displayed on the Multifunction PCB (discussed further in the Multifunction PCB theory).

MULTIFUNCTION PCB

The Multifunction PCB is an IBM-AT compatible plug-in board that provides the interface between the CPU PCB and the various subsystems. All intelligence on the Multifunction PCB is controlled by the CPU PCB via the ISA bus. In a DOS environment there is a block of addresses reserved for certain I/O (Input/Output) operations. The Multifunction PCB is inserted in this address space. These operations are accessed by system I/O READ (IOR*) and I/O WRITE (IOW*) cycles. Figure FO-1 located at the end of this section is a block diagram of the Multifunction PCB.

PAGED ADDRESSING

The Multifunction PCB uses a paged address scheme and pages two distinct groups of devices, those that are paged externally and those that are paged internally or have an external address bus of five or more bits.

The externally paged devices are accessed by writing to the base address of the PCB which is a latch. The latch receives buffered data (BD0-7) from the ISA bus via a bus transceiver. Latched data (LD0-7) is decoded and gated with IOR* & IOW* on two decoders for chip selects of all paged devices. The value written may be read back for verification by performing a read at the same base address. The latch does this by transferring direction of the LD0-7 bus back out onto the BD0-7 bus. The IOR* cycle reverses the direction of the buffer, thereby placing the data on the ISA bus.

The internally paged devices are those that have address buses of more than 4 bits. The address lines of these devices are driven by LD0-7. An example is the octal UART which has an address bus of six bits that addresses its internal registers. After latching the address bus, a read or write to that register is accomplished.

POWER ON SELF-TEST (POST)

It is common to all DOS based computers to perform tests during the boot cycle. Should a test fail, a failure code is displayed by the POST Code Display LEDs. If the failure is catastrophic, then the system will halt. After the boot cycle is complete, system software can clear the displays, or write system diagnostic codes to them.

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SERIAL COMMUNICATIONS INTERFACE

A Universal Asynchronous Receiver/Transmitter (UART ) is a device which converts parallel information to an asynchronous serial format, and serial information to a parallel format. The Octal UART has four groups of two UARTs which control serial communications to the various subsystems (8 maximum). The outputs (TX) are TTL level transmit/receive and are converted to differential RS422 by Line Drivers. Incoming RS422 signals (RX) are converted to TTL level by Line Receivers. The RS422 lines are terminated by a resistor between + and -, and each is pulled up and down respectively to prevent oscillations when there is no connection to those channels. Channels seven and eight may be switched away from the internal system and directed to two optically isolated RS232 ports.

Each group of UARTs has a fully programmable interrupt designated to it. All four interrupts (INT0-4) are wire-ORed together to drive the system’s IRQ10 line (interrupt request). Signal IRQINH enters logic circuitry that makes IRQ10 an edge trigger for multiple interrupts. As the interrupts are processed, the IRQINH line is toggled. If an interrupt occurs while the current one is processing, the rising edge of IRQ10 is regenerated indicating there are more interrupts pending.

Support circuitry for the UART includes a 4-bit counter used as a divider for the system bus oscillator. The division of 14.31818 MHz by four yields a 3.58 MHz clock for driving the UART. This frequency results in easily programmable baud rates for the device.

WATCHDOG TIMER

The watchdog timer is a Dallas DS1286 real-time clock/ calendar with an internal 10 year lithium cell. It provides timekeeping functions for the system, and a shutdown safety interrupt should the CPU lock-up.

SYSTEM CONTROL

The system control register is responsible for a number of features including remotely disabling the power supply. This is accomplished by RSHDN (remote shutdown bit) closing the remote shutdown relay which is in series with the remote standby switch (front panel switch) creating a logical OR condition. If either is open, the supply is ON. Both have to close however to turn the supply to standby. When power comes up for the first time, the relay is held in the closed state, meaning that the switch must be open. When the system software

comes up, then the relay may be opened, keeping the supply enabled. If the remote switch is sensed, then software can execute a power-down sequence prior to closing the relay and sending the supply into shutdown.

SYSTEM STATUS

System Status Registers report the status of various system devices and control signals to the Host.

VOICE CONTROL

Voice Control and Voice Status registers control and report on the Speech Synthesizer and Voice Memories. The Voice Memories are Flash EPROMs which enables the system to download different languages (when available).

The Speech Synthesizer contains up to 111 voice packets of information, addressed by BD0-6. When a request for a particular voice response is received, the Speech Synthesizer accesses the appropriate response from the Voice Memories and creates an analog VOICE signal. The VOICE signal is then sent to a preamp, then out to the speaker. The voice status register is monitored by the CPU for completion of the packet.

VOLUME

Volume control is accomplished by a 2 channel, 8-bit multiplying DAC. It controls external volume and voice volume by way of attenuation. The control input to the DAC is from the BD0-7 bus where 0xff is full scale Vout = Vref (Vref= audio input) and 0x00 is full attenuation of the input audio signal. The outputs are buffered and then input into the inverting summer that combines all audio signals into a single channel for amplification by the audio amplifier. Full scale inputs to the DAC are in the area of 400mV RMS.

TONE

The various tones created by the system are supplied by a Yamaha FM Music Synthesizer. The Synthesizer receives a request for a particular tone and sends the requested signal to a DAC. The DAC is a Serial D-A Converter designed to handshake with the Synthesizer. The buffered output of the DAC is modulated on

VCC or approximately 2.5 V. The AC component is low-pass filtered at 21KHz, buffered and then capacitively coupled to the inverting summer of the preamp section. Volume for tone is controlled by internal volume registers for each of its 9 channels.

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RESET REGISTER

The Reset Register is an eight bit register programmable for each subsystem channel. It powers up in the tri-stated mode with all of its outputs tied to digital ground by 1K resistors. This holds all subsystems in RESET until the register is programmed and enabled by the UNLOCK command.

DISABLE REGISTER

The Disable Register is an eight bit register with its outputs pulled hi by 1K resistors so that during power-on, all RESET lines are logic hi. The UNLOCK command enables the Disable Registers outputs after the device is programmed.

UNLOCK is a vital system function that controls the status of the entire system during power-on. It also prevents watchdog interrupts from occurring prematurely. UNLOCK is essentially a flip-flop that gets reset by the ISA bus RESET signal. This signal is initiated by the CPU as power is applied to the system. The LOCK output of the flip-flop controls the enable of many programmable registers and holds some peripherals, including all subsystems, in RESET.

REVISION CONTROL

Revision control is accomplished by 12-bit Analog-toDigital reads of voltage dividers created with a revision resistor pulled up by a 10K resistor to VREF. Each divider is fed through one channel of a multiplexer (MUX) whose output is sent to a 12-bit Analog-toDigital Converter (ADC).

NOTE: S2* is the IV Pole revision resistor signal (IV_REV) from the IV Pole PCB.

FOOTSWITCH INTERFACE

Figure FO-2 shows the interface between the

footswitch and the system.

STTL As shown on the block diagram, the footswitch interface is located on the Multifunction PCB.

Footswitch control voltages are provided by 8-bit digital-to-analog converter with an internal 2.56 reference voltage. The output of the DAC controls two different things. If a programmable detent footswitch (Series 20000 is the detent control voltage. If a standard Line Master or ATFS type footswitch is present, it becomes the Pedal-UP setpoint voltage. The sequence for determining the function of the DAC is to first read the footswitch revision resistor. After determining what footswitch and revision is plugged into the system, a footswitch status bit needs to be set that selects Series 20000™*/Accurus® or ATFS/LineMaster type footswitches.

LINEMASTER OR ATFS FOOTSWITCH INTERFACE

If an ATFS is present, the DAC performs the PEDALUP signal indirectly. A setpoint is programmed to the non-inverting input of a comparitor. The footswitch voltage is fed into the inverting input of the comparitor and so long as it is the greater voltage, the comparitor drives its output to AGND (analog ground). Once the footswitch voltage becomes less than the setpoint, the comparitor releases its output which is pulled up to +5VA and the diode portion of the Optical Isolator turns on. The output transistor of the opto-isolator also turns on effectively bringing ATFSUP* to a logic low. The final result is PEDALUP being broadcast to all subsystems.

™*

or Accurus® footswitch) is present, it

The footswitch voltage is also input to an Analog-toDigital Converter. The digital equivalent of this voltage is then read and decoded by the system to determine footswitch position.

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STTL/ACCURUS® FOOTSWITCH INTERFACE

If a STTL

footswitch is present, the DAC voltage programs the motor current of the detent motor on the footswitch. The motor used in the Series 20000

™*

footswitch has a winding of 110Ω, and +24 V applied to one terminal. The other terminal is connected to a transistor on the Multifunction PCB which controls the amount of current (proportional to torque) on the motor. This is accomplished by turning on the transistor and controlling the voltage on the emitter resistor RP1 thereby controlling the collector current.

Footswitch position is determined by counting the digital pulses created by the optical encoder on the footswitch. The optical encoder outputs, FS_CHA & FS_CHB, are decoded and counted by a Decoder/Counter then sent to the CPU to determine the appropriate response.

SERIES 20000

The Series 20000

™*

FOOTSWITCH

™*

footswitch consists of 4 basic functional elements; position encoder, position feedback, functional switches, and revision control. The combination of these elements ensure system control and provide for IEC/TUV approval, including waterproof criteria based therein.

Positional Encoder

The treadle is the control surface of the footswitch. It is attached to a quadrature optical encoder through a 5:1 transmission. The optical encoder requires +5V power and ground, and transmits two digital pulse trains (FS_CHA & FS_CHB). The digital signals are 90 degrees out of phase to represent rotation and direction, depending upon the phase relationship. The encoder signals are decoded/counted on the Multifunction PCB as discussed in the Footswitch Interface. By design, the footswitch generates 550 counts in the decoder/counter chip with full depression of the treadle.

Positional Feedback

Tactile feedback is available to the user by means of a detent generating motor (+24V, SOL-). A DC motor is attached to the end of the treadle shaft opposite the encoder through a 99:1 transmission. The transmission amplifies the small amount of torque generated by the motor into something noticeable at the end of the treadle. System software will program the motor torque relative to the footswitch position using the programmable current source (SOL-) on the Multifunction PCB.

Functional Switches

The functional switches include right and left vertical and horizontal, treadle up, spring fail, and tilt-safe switches (LV, RV, LH, RH, FS_UP, L_HEEL, R_HEEL). The treadle up switch is electronic using a transistor in open-collector and saturated states to perform the switching. A properly initialized system will reset the footswitch decoder/counter when a treadle up condition is sensed. All other switches, except for spring fail and tilt-safe, are input to the footswitch status register on the Multifunction PCB. The spring fail switch opens the return path for treadle up sensing in the event of a spring failure. The result is a footswitch always being sensed in the UP position. The tilt-safe switch disrupts the switch return path to the footswitch, resulting in a “no footswitch present” condition in the system.

Revision Control

A resistor to ground in the footswitch provides half of a resistor divider whose resulting voltage is sent to a precision ADC on the Multifunction PCB for revision detection by the system software.

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IV POLE PCB

The IV Pole PCB is located on the IV Pole Assembly and provides system control of IV Pole movement. Refer to FO-3 for a block diagram of the IV Pole PCB and its interface with the Multifunction PCB. The following signal descriptions detail how the IV Pole is controlled and monitored by the system, and the associated circuitry used to support these functions.

ENABLE (EN*)

A low level signal from Multifunction PCB enables motor operation.

DIRECTION (UP*/DN)

A low level signal from Multifunction PCB indicates upward pole travel. A high level signal indicates downward pole travel.

BRAKE RELEASE (BRKREL*)

A low level signal from Multifunction PCB disengages the IV pole brake solenoid. To start motion of the IV pole, the system first disengages the brake then waits approximately 10 ms before providing the enable signal. This is done to ensure that the motor never drives into a braked IV pole.

The mechanical brake, normally in the on position, is used to prevent pole motion under load and while power to system is off. A FET driver drives the solenoid brake release.

As an additional braking mechanism, the brake release signal is connected to the BRK line on the Motor Controller. Upon activation of this signal, the N-channel FETs are all turned on. This effectively shorts the stator windings of the motor and provides a means of dynamic braking. It also ensures that in the event of a single fault failure of the motor enable logic, the motor will not be activated.

OPTO CHANNEL OUTPUTS (CH_A & CH_B)

These signals provide relative position measurement as well as direction of travel. These two lines originate from the commutation signals HSNSR1 & HSNSR3 from the Hall-Effect Sensors on the Brushless DC Motor. Each of these lines will toggle once for each revolution of motor travel. The ratio of pole movement to motor rotation is .50 ±.005 in:1 revolution. The actual counting of these pulses is done by a Decoder/Counter on the Multifunction PCB.

SENSOR OUTPUT (S1*)

This signal provides feedback to the system for absolute (home) positioning. The opto channel outputs explained above only provide a measurement of displacement relative to a predefined “Home” position. Subsequent to any system reset, the absolute position of the IV pole is lost and the CPU must synchronize its displacement counter to a known position. S1 provides an active low signal to the Multifunction PCB when the pole reaches a position of 78 cm.

A lower limit sensor is installed but not sensed by the system at this time. In the event a calibration procedure is required, the sensor will provide a lower limit to indicate pole travel below the allowed minimum of 2 cm.

Two Sensors are located at fixed points on the stationary vertical structure. When the (moving) vertical structure of the IV pole passes by an opto-interrupter, a flag on the vertical structure interrupts the light beam between the interrupter’s LED and photo-transistor, causing the photo-transistor to turn off. This signal is inverted and sensed by the system as an indicator of absolute pole position.

CURRENT LIMIT (I_LIM*)

This output indicates a motor over-current condition. The motor current will be limited to 1 AMP peak.

BRUSHLESS DC MOTOR

The Brushless DC Motor has rare earth permanent magnets in its rotor which are propelled by a rotating magnetic field. The rotating field is set up by commutation of three stator windings (3 delta connected phases) that are energized sequentially as the permanent magnet passes into the region of its field. Correct timing of stator energizing is achieved by means of Hall effect switches built into the motor that sense the rotor position. The output of the Hall devices (HSNSR1-HSNSR3) is used to turn on the FET Drivers which energize the motor windings.

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MOTOR CONTROL

Commutation, speed and current limiting functions are provided by the Motor Controller. The Motor Controller has three inputs from three Hall effect commutation switches, and six outputs that drive the FET Drivers. The two device control lines (EN and F/R) are pulled high to prevent motion of the IV pole during power up (assuming that the driving “enable” line is in tri-state during power up). All control interface to and from this device is optically isolated to prevent the introduction of ground loops. The opto isolators have a turn on and turn off time of approximately 3 microseconds which will not introduce any significant system delays.

OVER-CURRENT PROTECTION

The over-current protection is implemented internally to the Motor Controller. The Motor Controller performs current limiting on a cycle by cycle basis. That is, each over-current situation is treated as a separate event. Each event disables the outputs until the next internal clock cycle (set to 44 kHz). This mode of current limiting protects the output transistors from continual cycling and thus extreme heating.

FET DRIVERS

Power MOSFET transistors are used to drive the motor windings. Due to the FET’s low on resistance and the cycle by cycle current limiting, no heat sinking is required. Since the motor drive voltage (24 V) is greater than the gate-source voltage rating of the FET’s (20 V), a voltage divider network is provided to limit the gate-source voltage to approximately 12 V.

REVISION RESISTOR

A revision resistor (REV) whose value is readable by the Multifunction PCB is provided to indicate to the system the IV Pole PCB revision level.

VIDEO PCB

The Video PCB provides a 640 x 480 pixel resolution and 256 colors to the active matrix color Liquid Crystal Display (LCD). It is controlled by the CPU PCB through the ISA bus and provides visual feedback for Host System voltages for +24V, +15 V, -15 V, +5 V, and +12 V. Figure FO-4 is a block diagram of the Video PCB.

FLAT PANEL CONTROLLER

The Video PCB is designed around the 82C457 Flat Panel Controller. The 82C457 is compatible with IBM’s VGA (Video Graphic Array) with additional capabilities to drive flat panel displays. It directly interfaces to the ISA bus through Data and Address Buffers.

The Flat Panel Controller employs an extension register set to control its additional capabilities. These registers are initialized by the on-board BIOS and provide control of the flat-panel interface, timing, and vertical compensation.

VIDEO BIOS

The Video BIOS EPROM supports the extended features of the Flat Panel Controller. During power up, the CPU accesses the BIOS EPROM and uses this information to enable the flat panel mode and disable the CRT mode.

VIDEO MEMORY

Two Dynamic RAM (DRAM) ICs provide 256K bytes of video memory. The video memory is arranged as four planes of 64K bytes each and is controlled by the Flat Panel Controller. The Controller retrieves data from the memory then sends it to the Flat Panel Color Palette via the VID0-7 bus.

FLAT PANEL COLOR PALETTE

The 82C411 Flat Panel Color Palette receives video pixel data from the Flat Panel Controller via the VID0-7 bus. The Color Palette reduces this data to the 256 colors required by the color LCD. The reduced color data (AR0-5, AG0-5, and AB0-5) is sent back to the Controller upon request.

The Flat Panel Controller sends 14 bits of information to the Front Panel Drivers which send it through the System Backplane and the Front Panel Controller directly to the color LCD. No further operation is performed on this data.

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FRONT PANEL SUBSYSTEM

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LEGACY

When LCD PN 088-031 is used, the Inverter 

is located on the Front Panel Control PCB.



When LCD PN 200-1836-001 or 200-1721-001 is 

used, the Inverter is located on a separate PCB.

FRONT PANEL

CONTROL

PCB

VIDEO PIXEL DATA

TX/RX

INVERTER

The Front Panel Subsystem (FPSS) provides the man-machine interface for the STTL. The FPSS is responsible for the following functions:

• Monitoring the touch screen and reporting the X/Y coordinate at point of touch.

• Monitoring the hard keys and reporting key codes.

• Displaying the IV pole and U/S time information.

INVERTER PCB

TOUCH SCREEN

AND 

SWITCHES

COLOR

LED

LAYER

LCD

BACKLIGHT

REMOTE

DISPLAY

PCB

FRONT PANEL CONTROLLER PCB

The Front Panel Controller PCB controls the FPSS and communicates with the Host system. The major components on this PCB are specified by the Subsystem Kernel Design discussed in the System Overview section of this manual. Additional components on this PCB are used to interface with the rest of the FPSS.

• Monitoring remote control serial bit stream and reporting remote key codes.

• Maintaining communication with the host.

Refer to Figure FO-5 at the end of this section for a detailed block diagram of the FPSS.

TOUCH SCREEN INTERFACE

The Touch Screen consists of a two thin sheets of plastic (X and Y screens), each with a special coating of transparent resistive material on one side. The sheets are sandwiched together with the resistive coating in between, but restrained from touching each other by a matrix of small clear spacers.

In order to read the coordinate of a point of touch, the X screen is biased (VCC at +X, GND at -X) and the Y screen is floated to become a pickup contact at any position over the entire screen. When the screens are touched, a voltage divider is created to raise the potential of the floating screen to some voltage. This voltage is sent through a low pass filter to the internal A/D converter which yields the X coordinate (XCH). In order to read the Y coordinate (YCH), the operation repeats itself with the Y screen biased and the X screen floated.

The task of biasing/floating the X/Y screens is controlled by software through the I/O IC. The software accomplishes this task by alternatively turning a pair of P-MOSFET and N-MOSFET transistors on and off at appropriate times. These devices are logic level controlled.

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HARD KEY INTERFACE

The hard keys (elastomer buttons on the front panel) are arranged in a 4 row by 5 column matrix. The task of scanning the hard keys is performed by software through the I/O IC. At a rate (multiples of 10 msec) defined by the Host, the hard keys are scanned. Scanning is performed by setting all column lines high and then scrolling a logic zero through the columns. After every scroll the signals at ROW0, ROW1, ROW2, and ROW3 are read and stored away.

Upon one complete scan, software analyzes the stored row data (5 x 4=20 bits). If all bits are high then the hard keys are untouched and the task exits. In order to detect a valid touch, only one out of 20 bits is allowed to be low. When a valid key is detected, its associated key code is stored.

The hard keys are scanned again in 10 msec. If the same key is found to be depressed, its code value is placed into a transmit buffer in the proper format to be transmitted to the host.

COMMUNICATION

The communication between the FPSS and the Host is done through a UART. A Driver/Receiver performs the signal level translation.

VOLTAGE FEEDBACK

Visual feedback for voltages used by the FPSS is found on the Front Panel PCB. The LEDs (green) mounted on the PCB indicate the following voltages are present:

• +15 V

• -15 V

• +12 V

• CPU OK (blinks on/off)

• +24V

DISPLAY PCB

The Display PCB contains the U/S Time Meter and IV Pole position LED displays, and the Infrared Detect/ Decode Interface for the remote control.

HARD KEY BACKLIGHTING

Backlighting of the hard keys on the Front Panel is accomplished with an illumination panel containing one LED per hard key. These LEDs are located on the illumination panel and are Pulse Width Modulated (PWM) in order to obtain maximum brightness.

+12 V CONTROL TO LCD

The +12V_EN* signal from the Video PCB controls +12 V delivered to the LCD. When +12V_EN* is high, the +12V Control is off and +12 V is not enabled. When +12V_EN* is low, the +12V Control is on and +12 V is delivered to the LCD.

+5 V CONTROL TO LCD

The +5V_EN* signal from the Video PCB controls +5 V delivered to the LCD. When +5V_EN* is low, +5 V is delivered to the LCD.

I/V POLE AND U/S TIME LED DISPLAY

The U/S and IV pole data are transmitted in ASCII format by the Host. Upon receiving a display command, the FPSS verifies the data packet, performs the ASCII to seven segment conversion and then displays the data.

All 8-Segment LEDs on the Display PCB are time multiplexed on common data lines. The segment data is sent through PORT-A of the 82C55 I/O on the Front Panel Controller PCB. This data is then fed into a High-Current Driver and sent to the Display PCB via cable W-131. The segment data is then presented to the LEDs through current limiting resistors. Each LED display has 8 data line inputs and one common terminal which allows the display to be enabled or blanked.

Since the LEDs share common data lines, only one LED can be enabled at a given time. This is accomplished by scrolling a logic 1 through a Shift Register by DCLK and DDATA lines. The Shift Register outputs are then fed into a High-Current Driver in order to enable or disable any given LED.

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REMOTE CONTROL RECEIVER

The hardware for the infrared detecting signals from the remote control is centered around Infrared Detector U1 located on the Display PCB. This device receives the infrared rays through its photo-diode and performs all the necessary amplification, filtering, and pulse detecting internally. It outputs a TTL compatible signal representing the envelop of the infrared signal (IR).

The output IR is connected to the HSI port on the 80C196 Control Processor located on the Front Panel Controller PCB. HSI.0 is programmed to record events on the rising and falling edge. This enables the 80C196 to measure the low and high pulse durations.

In order to receive a valid command from the Remote Control, the following conditions must be met:

• Valid Low pulse durations

• Valid High Pulse Durations

• Valid Start bit

• Valid Data bit complements

• Valid Packet Checksum

• Valid Address

When a valid command is received, its code value is placed in a transmit buffer to be transmitted to the Host.

REMOTE CONTROL PCB

The Remote Control performs the following functions:

• Monitors the remote control key board and transmits any valid key entry.

• Upon usage, monitors the ambient light and turns on the backlight LED if ambient light intensity is below 5 ±3 lux.

• Upon usage, monitors the battery and transmits its status with every packet.

The following theory of operation groups the Remote Control into functional objects.

KEYBOARD

The keys are arranged in a 4 row by 6 column matrix. The matrix is designed on a membrane switch layer which interfaces to the Remote PCB via 10 pin connector J1. The task of scanning the keyboard is performed by software. The CPU scans the keyboard at a rate of 10 Hz. Scanning is performed by setting all the column lines to high and then scrolling a logic zero through the columns. After every scroll, the signals at ROW0, ROW1, ROW2, and ROW3 are read and stored.

REMOTE CONTROL

The remote control transmits packets of information to the Display PCB through an infrared link and is operational under the following circumstances:

• In tray and anywhere tray arm extends.

• Independent of screen tilt and position.

• Anywhere in a 15' x 20' operating room.

• With drape over remote and system.

In all cases, the remote infrared beam must have a path to the front panel sensor either directly or through reflection (i.e. wall, floor, sealing) .

Upon one complete scan, software analyzes the stored row data (6 x 4=24 bits). If all the bits are high, the keyboard is untouched. In order to detect a valid entry, only one out of 24 bits is allowed to be low. When a valid entry is detected, its associated key code is stored.

The keyboard is scanned again in 35 msec. If the same key is found to be depressed, its code value is transmitted to the host. At this point the CPU enters a loop 100 msec in duration. After each loop iteration, the keyboard is scanned again. If the same key is still depressed, a repeat message is transmitted to the host. The loop execution continues until either the key is released, a new key is depressed, or an illegal entry is detected.

PHOTOCELL

To extend battery life, the backlight LEDs are turned on only when needed. Since the remote control may be used in an extremely dark operating room, a photocell is utilized to detect the presence or absence of light. Each time the CPU is powered up, it reads the output from the Photocell. If absence of light is detected (DARK* signal low) the backlight LEDs are turned on by the CPU.

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POWER UP METHOD

Since the battery life is of concern, power is not provided to the CPU and various other circuitry unless needed. Power (VB) is only provided to the pyroelectric circuitry and keyboard circuitry. Each time a key is depressed or hand motion is detected, the retriggerable timer is pulsed. The timer is turned on for 3.5 seconds sending power (VB) through a MOSFET driver whose output is VCC which is used to power-up the CPU U5.

The Power Control Switch contains two timers, one for the pyroelectric sensor and one for the keyboard. The two timers are connected in parallel so an output from either powers-up the CPU.

POWER DOWN METHOD

Once the CPU is powered up either through key depression or motion detection, the CPU enters an idle mode waiting for key entry. If no key is pressed 3.5 second after the last entry, the timer times out and as a result turns power off to the CPU.

BACK LIGHT

Back lighting the keys and icons is accomplished by LED's - one LED is used per key and two per icon. LEDs are turned on through the CPU by software. This output is fed into the Power Control Switch in order to provide the current (1 ma) for the LEDs.

COMMUNICATION

Packets are transmitted via infrared link with the system. Packet contents (data bits) are shifted serially through the CPU by software. The data bits are then modulated by 40 KHz square wave by a Counter. The carrier (modulated data) is the current amplified through a MOSFET driver, then fed into leds DS1-DS4. The LEDs transmit data at 950 nm wavelength to the infrared detector on the Display PCB.

PYROELECTRIC SENSOR

The pyroelectric sensor is a device that responds to the change in temperature (infrared light) caused by the human body. The object of the pyroelectric sensor is to detect the hand motion near the remote control and turn the power on to the CPU.

The pyroelectric sensor output is fed into the Amplifier Comparator which generates a negative going pulse for large positive or negative going signals that exceed the established threshold levels. This negative pulse is then fed into a timer in the Power Control Switch.

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TX/RX

FLUIDICS SUBSYSTEM

(FLUIDICS BACKPLANE)

FLUIDICS

CONTROL

PCB

XDCR

PCB

PLUNGER SWITCHES

SOLENOIDS

ASP

MTR

CASS. SWITCHES



PNEUMATIC ASSY



HANDPIECE

CONNECTOR

PANEL

VIT LUER

SERIES 20000

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LEGACY

The Fluidics subsystem controls and monitors the irrigation and aspiration modes used in the STTL. Figure 2-6 illustrates the fluidics flow from the IV bottle, through the cassette and handpiece, to the drainage bag.

®

BSS

CASSETTE

COMPLIANCE

CHAMBER

ASP PUMP

The fluidics subsystem is comprised of 7 major assemblies; the Fluidics Controller PCB, Cassette Type PCB, Transducer PCB, Backplane PCB, Anterior Pneumatics module, Solenoids, and the Peristaltic Pump Stepper Motor. Figure FO-6 at the end of this section is a detailed block diagram of the Fluidics Subsystem.

IRR

HANDPIECE

LIQ

VENT

(Reflux)

FILTER

MT1

XDCR

(Flow Thru)

BAG

AIR

VENT

(Prime only)

Figure 2-6 Fluidics Flow Diagram

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FLUIDICS CONTROLLER PCB

The Fluidics Controller PCB controls the Fluidics module and communicates with the system master. It monitors the vacuum voltage signals from the Transducer PCB; and controls the irrigation, reflux, & air vent solenoids, peristaltic pump motor, and anterior vit drivers.

FUNCTIONAL BLOCKS

The major components of the Fluidics Controller PCB are specified by the subsystem kernel design. These include the following ICs: 80C196KC Control Processor, PSD301 Programmable System Device, ADG508A Analog Multiplexer, 6264LP-10 8K x 8 Static Ram, 28F256 32K x 8 FLASH EEPROM, and the LP2951 Voltage Regulator. See the Subsystem Kernel Design theory in the System Overview for specific information on these components. The remaining components are discussed below.

SERIAL COMMUNICATION DRIVERS

The Serial Communication Drivers provide translation from single ended TTL level information to RS422 differential level information for a more reliable transfer of serial information. The RS422 differential signals from the Multifunction PCB are received by the Serial Communication Drivers, converted to TTL level information, and sent to the serial ports of the Control Processor.

82C55A I/O DEVICE

The Intel 82C55A IC is a programmable input/output (I/ O) device which provides I/O control for the peristaltic pump stepper motor, status LED’s, Vit compressor & feedback signals, and irrigation, reflux, & air vent solenoid feedback signals. The 82C55A is enabled at pin 7 by select signal EXPIO* from the Programmable System Device, and reset by the system reset signal RST at pin 39.

STEPPER MOTOR CONTROL LOGIC AND DRIVERS

The motor driver control logic uses logic gates and control signals DISABLE3, PEDAL_UP, TEST, & PUMP_EN to determine when the stepper motor driver FETs receive the driving signals PHASE A,B,C, & D. The control logic for the stepper motor is implemented as follows:

• The DISABLE3 signal high disables the driving FETs.

• The PEDAL_UP signal high disables the driving FETs.

• The TEST signal low overrides the PEDAL_UP signal.

• The PUMP_EN signal low disables the FETs to force 80C196 control over the driving FETs.

The stepper motor drivers control the phase voltage lines to the peristaltic pump stepper motor. Low on resistance FETs (Q1, Q2, Q5, and Q6) are used as the motor drivers to provide a constant current drive with fast switching times and very low losses. Each FET is driven by an output of Control Logic NAND Gates. The PHASE A, B, C, & D input signals are software controlled and are generated by the PSD301. The stepper motor, which rotates a fixed amount each time it is pulsed, is driven in the full step, 2 phase excitation mode. The stepper motor control waveform is shown in Figure 2-7.

STEP FREQUENCY

1234123

PHASE A

PHASE B

PHASE C

RESET LOGIC

The Reset Logic is comprised of a series of open

PHASE D

collector buffers and a power up delay circuit. The Reset Logic inverts the reset signal required for the peripheral I/O device. The RESET3* low signal from the Host is

Figure 2-7 Stepper Motor Control Waveform

received by the Reset Logic then buffered and inverted to create RST* and RST. These two signals are then distributed to other devices on the PCB.

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SOLENOID CONTROL LOGIC AND FET DRIVERS

The Solenoid Control Logic uses logic gates and control signals (DISABLE & CPU_RDY) to determine when the Solenoid FET Drivers receive driving signals REFLUX, IRRIG, and AIR_VENT.

The solenoid drivers control the voltage lines to the Irrigation, Reflux, and Air Vent solenoids. Low on resistance FETs are used as the solenoid drivers to provide fast switching times and very low losses. The Irrigation and Reflux solenoids are driven with a pulse width modulation signal during the on-to-off and off-to-on transition. This allows a smooth, controlled operation of the solenoids. The Air Vent solenoid is driven with a pulse width modulation signal 500 milliseconds after being fully energized. This technique utilizes the high holding force of the solenoid while dissipating much less energy.

SOLENOID FEEDBACK

The Irrigation Valve and the Reflux Valve have an optical switch on the mechanism to indicate physical information on the state of the valve where LOW equates to closed and HIGH equates to open. Power to the Irrigation (IRR_SW_P) and Reflux (RFX_SW_P) optical switches is provided from the Fluidics Controller PCB. This power is used to illuminate the LED within the switch. The switch return signals, IRRIG_SW & RFX_SW, are monitored at the 82C55A I/O IC.

The Air Vent Valve driver current is monitored to indicate excitation of a feedback device where LOW equates to closed and HIGH equates to open. An Optical Switch is tied to the output of the Air Vent FET Driver and provides feedback which is monitored at the 82C55A I/O IC.

VIT_A, B, & C signals are controlled by the Control Processor high speed output and the VIT_E signal is controlled by the 82C55A I/O IC. These signals are sent to the Anterior Vit Drive PCB when the ENABLE1 signal is high.

VIT DRIVER FEEDBACK

The excitation current from the HEXFET Drivers on the Anterior Vit Drive PCB is monitored by the 82C55A I/O IC on the Fluidics Controller PCB. A low feedback signal (VLV_A_FB, VLV_B_FB, or VLV_C_FB) equates to valve closed and a high output equates to valve open.

SYSTEM CONTROL SIGNALS

The Host system maintains ultimate control over the Fluidics subsystem through the following system control signals; DISABLE3, PEDAL_UP, TEST*, and RESET3*.

• DISABLE3 signal high disables the Stepper Motor FETS Drivers, Vit Driver Buffers, and Solenoid FETS Drivers.

• PEDAL_UP signal high disables the Stepper Motor FETS Drivers and Vit Driver Buffers.

• TEST* signal low overrides the PEDAL_UP signal .

• RESET3* low forces the Control Processor into reset, which in-turn forces all controlled devices to become disabled.

VOLTAGE FEEDBACK

The Fluidics Controller PCB supplies two types of voltage feedback. The first type is voltage feedback signals to the controller for subsystem status information and master CPU reporting. The second is visual indication LEDs for all used voltages indicated as follows: +5 V, CPU OK (blinks on/off), +15 V, -15 V, and +24 V.

VIT DRIVER BUFFER

The Vit Driver Buffer provides TTL level drive signals to the HEXFET Drivers located on the Anterior Vit Drive PCB. Three of these signals, VIT_A, VIT_B, and VIT_C are sequenced by software in a manner to provide pneumatic vacuum and pressure valve control to the handpiece. The VIT_E signal is controlled for compressor on/off.

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TRANSDUCER PCB

The Transducer PCB provides the Fluidics Controller PCB with real time pressure/vacuum information. The pressure/vacuum transducers, MT1A and MT1B, are located just before the air vent valve as shown in Figure 2-6. The outputs from MT1A and MT1A, which are redundant to ensure reliability of the system, represent the chamber pressure/vacuum.

Since the full-scale output from the transducers is in the millivolt range, and the full-scale signal required by the Fluidics Controller PCB is 0 to 5 V, each transducer output is amplified by a gain of 100. The amplified signals, VAC_X_A and VAC_X_B, contain vacuum information proportional to the voltage of the signal where the voltage scale is 0.0048 volts/mmHg. This information is sent to the Fluidics Controller PCB where they must track each other within 12% in order for the Fluidics Subsystem software to accept the vacuum readings. On the Fluidics Controller PCB, the vacuum signals are voltage clamped and low pass filtered to protect the Control Processor A/D inputs from ESD or miswiring of the connector.

Test points are provided for checking the following signals:

TP1 = 15VRTN TP2 = VAC_X_B TP3 = VAC_X_A

CASSETTE TYPE PCB

The Cassette Type PCB is used to determine if a cassette is inserted in the instrument and the type of cassette inserted. The Fluidics Controller PCB uses this information to control the peristaltic pump.

Two optical switches are provided to detect up to three different types of cassettes. Power to the optical switches is provided from the Fluidics Controller PCB, and is used to illuminate the LED within the switch. The switch return signals, CST_S1 and CST_S2, are monitored by by the Fluidics Controller PCB.

FLUIDICS BACKPLANE PCB

The Fluidics Backplane PCB provides a common point for the module interconnects. The Fluidics Controller PCB and the Transducer PCB are mounted directly to the Backplane PCB via PCB connectors. The Cassette Type PCB and the Anterior Vit Driver PCB are satellite assemblies connected to the backplane through cables. All pneumatic components are connected to this backplane.

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ANTERIOR PNEUMATIC MODULE

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The Anterior Pneumatic Module is comprised of the Anterior Vit Drive PCB and the Anterior Compressor. This module supplies the vacuum and pressure used to drive the pneumatic handpieces. Figure 2-8 illustrates the air flow from compressor to handpiece.

ANTERIOR VIT DRIVE PCB

The Anterior Vit Drive PCB contains pneumatic valves K1, K2, and K3, which are sequenced by the Fluidics Controller PCB for proper operation of the handpieces. K1 and K2 are two-way valves, and are used to control the open/close of the pressure/vacuum path. K3 is a three-way valve, and is used to direct the air pulses toward the Vit handpiece or vent the VIT handpiece to the air muffler.

Each valve is supplied with +24 V through connector J1 pins 5 and 9. The valves are driven open or closed by HEXFET power MOSFETS Q1 through Q3, which in-turn are controlled by the Fluidics Controller PCB signals VIT_A, VIT_B, and VIT_C (see Figure FO-6). For example: VIT_A signal high would result in HEXFET Q1 driving valve K1 open thus sending air pressure towards valve K3.

ANTERIOR COMPRESSOR

The Anterior Compressor provides 635 mmHg vacuum and 40 PSI pressure simultaneously. The compressor is controlled by the Fluidics Controller PCB via signal VIT_E. VIT_E high drives HEXFET Q4 which in-turn enables the compressor.

ANTERIOR VIT DRIVE PCB

VACUUM

Figure 2-8 Vit Air Flow Diagram

COMPRESSOR

TO HANDPIECE

TO AIR

PRESSURE

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PHACO SUBSYSTEM (software V3.01 and below)

(PHACO BACKPLANE)

PHACO

TX/RX

CONTROL

PCB

U/S DRIVER PCB

HANDPIECE

CONNECTOR

PANEL

U/S 1

U/S 2 U/S 3

+85 V

CAUTERY PCB

The Phaco subsystem consists of 6 assemblies: Phaco Controller PCB, U/S Driver PCB, Backplane PCB, Cautery PCB, Cable Connector panel, and Cable W-107. See Figure FO-7 at the end of this section for a detailed block diagram of the Phaco Subsystem.

The Phaco Controller PCB assembly contains the circuitry which controls the U/S Driver PCB as well as the Cautery PCB. It is the central point of all communication within the Phaco Module. Two way communication with the Host is achieved by an RS422 serial communication link. This is accomplished with an RS422 converter I.C. through the TRANSMIT (TX+, TX-), and the RECEIVE (RX+, RX-) signals. All system level commands and data are transferred through this interface. The only other communication to the Host is done with the following system control signals; FPUP (PEDAL_UP), TEST*, DISABLE, and RESET.

Once a command is received from the Host, the Phaco Controller performs the appropriate action by communication to either the U/S Driver PCB or the Cautery PCB.

The U/S Driver PCB performs all electrical processes necessary to drive a variety of ultrasonic handpieces. Two interdependent control loops, voltage and frequency, are used to control the stroke of the ultrasonic handpiece. The voltage control loop monitors and maintains the appropriate handpiece drive voltage. The frequency control loop maintains continuous tuning of the handpiece to compensate for handpiece loading and drift. These control loops are only partially realized within the U/S Driver PCB. The U/S Driver PCB contains the circuitry to create the sinusoidal drive

COAG

voltage and frequency with analog feedback to the Phaco Controller to close the loop. The Phaco Controller digitizes and processes this feedback to provide a continuous tracking digital control loop. The U/S Driver PCB also contains various circuitry to detect fault conditions, disable power output and communicate the fault to the Phaco Controller. The Phaco Controller then communicates this fault to the Host.

The Cautery PCB generates sinusoidal electrical signals at varying power levels necessary to drive a variety of electrosurgical cautery probes. Also, the Cautery PCB contains the safety circuitry to detect a fault condition within the PCB and communicate this fault to the Phaco Controller which in turn disables the Cautery PCB and communicates the fault condition to the host. All power adjustments and control functions are communicated to the Cautery PCB by the Phaco Controller. The Backplane PCB provides the intra-module communication link as well as channeling all d.c. power to the subsystem. It has a single ground plane which is common to all supplies. The backplane is completely passive, i.e. no semiconductors reside on the backplane. However, there is a provision for a choke (currently not used). This choke may ultimately be used to smooth current transients on the 85V supply. The Backplane also makes power available to the cooling fan for the U/S Driver PCB.

All electrical power and communication signals to and from the Host pass through cable W-107. This cable contains shielded twisted pairs of wires for the power supply lines to minimize noise generation and increase noise immunity. The signal lines are also shielded within a secondary layer. The 85V supply is routed along side

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the main harness and is separately connected. This was done to maintain a commonality of the main harness cable for use with the other system modules.

All electrical output for U/S and cautery handpieces is conducted through cable assembly W-105. There are three separate yet functionally identical U/S output ports. The cable supports both the low and high voltage signals necessary for the ultrasonic “smart” connector. The high voltage signals are physically separated from the low voltage signals with their own jacketed and shielded cable. Due to the sensitivity of the cable capacitance to handpiece/driver performance, the shield is not grounded. However, redundant chassis grounding is maintained to the panel connector through the connector case as well as an internal pin connection to a chassis grounding lug. For the purpose of maintaining necessary creapage distance (IEC601 requirement) of the high and low voltage signals, the three ports are separately connected on the U/S Driver PCB (see Table 2-1 for connections).

Table 2-1 U/S Driver PCB Connections

FUNCTION U/S DRIVER

CONNECTOR

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PHACO CONTROLLER PCB

SUBSYSTEM KERNEL

The subsystem “kernel” consists of circuitry which is common to all subsystem CPU designs (see Subsystem Kernel Design ). The kernel circuitry for the Phaco Module resides on the Phaco Controller PCB.

BUFFERED ADDRESS, DATA, OFFBOARD ENABLE, AND CONTROL

The Phaco Controller has the capability to access four separate PCBs. Presently, two PCBs are accessed: the U/ S Driver and the Cautery PCBs. Within each PCB, the Phaco Controller can read or write data to 16 different devices. One of four active low BOARD ENABLE lines (BDEN1*-BDEN4*) is selected. These enable lines are buffered by U19 and sent through the backplane to the appropriate PCB. Once the PCB is selected, then the particular device to be communicated with on that PCB is selected via four BUFFERED ADDRESS lines (BA0-3). These address lines are buffered by U15 and sent to the appropriate PCB. All intra-module data is transferred via the 8-bit BUFFERED DATA bus (BD0-

7). This bus is buffered by U14 and is sent to the appropriate PCB.

Top Port High Voltage U/S Port A J6

Top Port Low Voltage U/S Port A J3 Center Port High Voltage U/S Port B J5 Center Port Low Voltage U/S Port B J2 Bottom Port High Voltage U/S Port C* J4 Bottom Port Low Voltage U/S Port C* J1

* Optional on later systems.

Synchronization of reading, writing and address selection is accomplished by the BUFFERED READ (BRD*), BUFFERED WRITE (BWR*) and the BUFFERED ADDRESS LATCH ENABLE (BALE*) lines. These lines are all active low and are buffered by U13.

BUFFERED CAUTERY CONTROL AND STATUS READ

Control of the Cautery PCB is accomplished in an identical fashion to the Series Ten Thousand

. This is done with the active low signals: POWER UP (PU*), POWER DOWN (PD*) and ENABLE (ENABLE*). These control lines are buffered and sent to the Cautery PCB via the Backplane PCB.

The 80C196 Control Processor reads the existing state of the above lines as well as the Frequency Gate (FRQGATE*) and the STATUS lines. The STATUS line is generated on the Cautery PCB. This active low signal is a fault indication from the IEC601 compliance check circuitry on the Cautery PCB.

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ONBOARD FREQUENCY COUNTER

The Phaco Controller has the ability to measure the applied handpiece signal frequency. To accomplish this, the controller uses the Frequency (FRQ) signal in accordance with the FRQGATE* signal to create the Gated Frequency (GFRQ) signal. The FRQ signal is a square wave of the exact handpiece frequency and is generated on the U/S Driver PCB. The Phaco Controller then measures frequency by counting the number of gated pulses (GFRQ signal) that exist over a known period of time. This length of time is controlled by the FRQGATE* signal.

The ability of the Phaco Controller to measure the handpiece signal frequency allows for automatic calibration of the voltage control oscillator on the U/S Driver PCB.

RESET GENERATOR

Reset generation is performed by the Reset Generator which is used as both a watchdog timer and a buffer for an external reset. The device will generate a reset if the processor gets “locked up” resulting in the loss of the Address Latch Enable signal. The External Reset (XRST*) signal is generated from the host during power up for synchronization of Host/Subsystem communication.

PCB REVISION READING

The Phaco Controller has the ability to read the revision of each of the PCBs within the Phaco subsystem. It does this by reading the value of a resistance that resides on each of the PCBs. The value of this resistance is related to the assembly revision.

POWER SUPPLY MONITORING

The Phaco Controller has the ability to confirm the presence or absence of +15V, -15V and +12V power supplies. This is done through the opto-isolators that detect the presence of each supply and provide a status signal (+15VOK, -15VOK, +12VOK) which is read by Control Processor. Status of these supplies are sent back to the Host upon request.

U/S DRIVER PCB

HANDPIECE CONNECTOR, INPUT ISOLATION & RESISTOR/CODE

Prior to tuning a handpiece, the system must know which type of handpiece is present and its voltage calibration. The Phaco subsystem reads each of the handpiece ports any time the footswitch is in the “up” position. The “up” position is determined by the FOOTPEDAL UP (FPUP) signal which is generated by a micro-switch within the footswitch.

Each ultrasonic handpiece has low level logic and analog signals embedded in the handpiece connector for the purpose of handpiece recognition and calibration. Recognition of the handpiece is determined by the value of a resistor inside the handpiece connector. The resistor is connected between the Buffered 10 V Reference (B10VREF) and the Calibration Resistance (CALR) lines. The Phaco Controller has within its memory certain predetermined handpiece parameters such as nominal handpiece voltage and tuning frequency range. These parameters are handpiece type dependent.

In addition, each handpiece has a certain calibration necessary for proper stroke at full power. This calibration is accomplished by a three bit code present within the handpiece connector. This three bit code is made available by the PROG0, PROG1, PROG2 and PGND signals. These signals provide the percentage variation of nominal handpiece voltage as necessary for calibrated stroke.

The low level handpiece input signals are isolated through a relay for protection from the high handpiece voltage. These handpiece signals are isolated at any time the footpedal is depressed. This means that a handpiece disconnected from the console when the footpedal is down will not be detected until the footpedal is returned to the “up” position.

The reading of the handpiece resistance is done by measuring the voltage across the resistance. The signals are buffered, then one of the three signals is selected through an analog multiplexer and finally scaled by a scale amplifier. The scaled resistor voltage is measured by the Phaco Controller on ANALOG CHANNEL 3 (ACH3). The digital signals (PROG0- 2) are read through an Octal Buffer.

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DUAL DIGITAL TO ANALOG CONVERTER

The tuning process determines the correct operational frequency and control set point for operation of the handpiece. The frequency is set by two analog control lines, COARSE and FINE. These analog signals are generated by a Dual DAC , that receives information to create these signals from the Phaco Controller.

The frequency is initially set by the COARSE signal. During realtime operation, all frequency adjustments for load or heating compensation are done by the FINE signal. The FINE signal, available at testpoint TP6, is where control loop servoing takes place. Although the signal is dynamic in nature, it should be a d.c. level from 2 to 5 volts.

VOLTAGE CONTROLLED OSCILLATOR AND SCALE AMP

The FINE and COARSE signals are applied to a Voltage Controller Oscillator that is configured as a voltage-tofrequency converter where the frequency of the generated sinusoidal signal is proportional to each of these signals. The function generator creates a sinusoidal voltage with an amplitude of approximately 1.5 Vrms at a frequency with a minimum span of 25 to 65 kHz. This voltage is then passed through a Scale Amplifier with a gain of two to create an offset sinusoidal signal of approximately 3 Vrms. The purpose of the offset will be discussed later.

MULTIPLYING DIGITAL TO ANALOG CONVERTER

All handpiece voltage adjustments occur through a 12 bit Multiplying DAC. The DAC takes the voltage (3 Vrms) and multiplies it by the ratio n/4096. The variable n is the 12 bit data written to the Multiplying DAC from the data bus. Thus, the voltage presented to the input of the power amp varies from 0 to a maximum of approximately 3 Vrms.

ANALOG SWITCH AND ZERO CROSSING DETECTOR

Ultrasound power is enabled by an Analog Switch that is controlled by the ZEN signal which is created by the Zero Crossing Detector circuit formed.

The purpose of the zero crossing detector is to synchronize ultrasound power enable to the instant at which the sinusoidal handpiece voltage crosses zero volts. This synchronization prevents the large current transients which can occur when power is enabled at the sinusoidal peak.

Also at this point, the square wave is buffered to create the FREQUENCY (FRQ) signal used in frequency measurements done by the Phaco Controller.

ULTRASOUND ENABLE LOGIC, RELAY SELECT AND RELAY DRIVERS

The ultrasound enable logic is created by U16 and U18. The ultrasound enable signal present at TP5 is a logical function of the following signals: TEST*, FPUP, USEN, and DISABLE. Table 2-2 summarizes the logic of ultrasound enabling.

In addition to the enable logic, ultrasound power is enabled only in a “no ground fault” condition.

The USEN and RELAY ENABLES signals are created by an 8 bit latch. These signals are generated by the Phaco subsystem software to select the U/S port and enable U/S power. The relay signals are buffered prior to activating each of the relays.

Table 2-2 U/S Enable Logic (low=0, high=1)

ELBASID NESU PUPF *TSET

00000 00010 00100 00110 01001 01011 01101 01110 10000 10010 10100 10110

11000 11010 11100

11110

TUPTUO

)5PT(

ENABLE DECODE LOGIC AND DATA BUFFER

The Enable Decode Logic and Data Buffer buffers the data bus as it enters/leaves the U/S Driver PCB and creates a latched data bus for use by the dual DAC and multiplying DAC.

Signals BRD*, BWR*, BA0-3, and BDEN1* from the Phaco Controller are decoded to create the various device select signals; DAC0A*, DAC0B*, MDAC*, CSREG*, MUX1* and MUX2*. These signals respectively select DAC A of the Dual DAC, DAC B of the Dual DAC, Multiplying DAC, and Chip Select Relay Gate.

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In addition to the above, the FAULT RESET (FRST) signal is generated for resetting either a ground fault or a compliance fault.

POWER AMPLIFIER

The power amplifier can provide approximately 45 watts of power over a frequency range of 25 to 65 kHz (23 Vrms into 12 ohms). The amplifier consists of a voltage gain stage which are two transistors operated in a class A darlington configuration. The second stage is the power gain stage where two transistors are operated in a class B emitter follower configuration. Feedback is provided for the overall power amplifier which sets both the dc bias (VBIAS) and ac voltage gain. In addition, there is feedback primarily for temperature compensation of the class A stage introduced by a resistor. The dc bi a s r anges from 42 to 46 Vdc and the voltage gain ranges from 13.3 to

16.6 V/V.

An R/C network of provides an output delay which holds the first transistor off during power supply turn on. This delay protects the transistor from high current transients which can occur during this transient period.

VOLTAGE SELECT RELAY, STEP UP TRANSFORMER & OUTPUT SELECT RELAY

The step-up transformer has a two tap primary (17:1 and 12:1 turns ratio) to raise the ac power amplifier output voltage from 23 Vrms to a maximum of approximately 340 to 390 Vrms applied to the handpiece from the high voltage tap. The transformer is designed to provide a high degree of electrical isolation with a minimum of stray capacitance. This minimizes handpiece leakage current in the event of a ground fault condition. The primary tap is selected by a relay. Presently only the 375/60 handpiece uses the low voltage tap.

Following the transformer are two relays which steer the high voltage (USA, USB) signals to the appropriate U/S port (one of three). These relays are selected and driven by the Relay Enables.

HANDPIECE VOLTAGE AND CURRENT FEEDBACK

As previously stated, the Phaco subsystem utilizes two interdependent control loops for maintaining real time tuning of the handpiece. The information necessary for these control loops is contained within the handpiece voltage and current.

The feedback voltage is measured at the primary of the transformer and is related to the actual handpiece voltage by the turns ratio of the transformer. This primary voltage is scaled to appropriate levels by a scaling amplifier. The scaled ac handpiece voltage is then passed to an rms/dc converter, which converts the rms value of the ac voltage to an equivalent dc level. Thus, a 1 volt rms ac voltage produces a 1 volt dc output. The output of the rms/dc converter is available at TP2.

Handpiece current is detected by a .75 ohm resistor at the primary of the transformer. This primary transformer current is related to the actual handpiece current by the transformer turns ratio. The voltage across the R6 is scaled by U27 operated in a differential mode to provide the input to the rms/dc converter U28. The output of the rms/dc converter is available at TP4.

ANALOG SYSTEM FEEDBACK

The Phaco module has the ability to read various analog signals to provide the means of auto-calibration as well as real time diagnostics. These signals are present at multiplexer MUX2, which is selected by the MUX2* signal. These signals include: Ten Volt Reference (10VREF), COARSE, FINE, Power Amp Voltage Bias (VBIAS), and Scaled 85V Supply (+85V). These voltages are scaled from a maximum of 10 V down to a maximum of 4.8 V by a Scale Amplifier.

At system power up, the Phaco module software performs a power up test of the module. At this point it measures the 10VREF, VBIAS and +85V signals for appropriate levels. It also checks the functionality of the Dual DAC by measuring the COARSE and FINE voltages.

HANDPIECE RESISTANCE

Multiplexer MUX1 is selected by the MUX1 signal, and is used for selection of the handpiece resistance to be measured. The value of handpiece resistance is determined by the voltage divider created by the handpiece resistance with resistors on the U/S Driver PCB. This voltage is then scaled by 48% by a Scale Amplifier.

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GROUND FAULT DETECTION AND IEC601 COMPLIANCE CHECK

The ground fault circuitry detects the condition of a broken earth ground connection between the handpiece and earth (chassis) ground. A ground fault can only exist if the SHIELD and GND connections are both broken. If this occurs then a voltage across the stray capacitance between the now floating handpiece shell and earth ground is measured. This voltage (GFAULT) is indicated at the return side of the transformer. GFAULT is scaled down by an R/C network for input protection to the Ground Fault Detector. This scaled sinusoidal voltage is compared to a 5 Vdc reference voltage created by 10VREF and a resistor network.

At any time the peak value of the scaled GFAULT voltage exceeds 5V, a ground fault is initiated. This signal is latched and immediately disables the ultrasound power. The GFAULT needs to exceed approximately

38.5 Vrms for a fault to occur. This disabling is entirely under hardware control. If a true fault exists then it cannot be overridden by software. However, if a transient fault exists then the latched fault can be reset by software with the FRST signal.

SERIES 20000

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LEGACY

CAUTERY PCB

The Cautery PCB is manufactured by a German company and uses different terminology on some components than the rest of the PCBs in the STTL. This terminology was retained in the following theory to enable the user to cross reference to the provided schematic. Definitions of the terminology used on the Cautery PCB are as follows:

MP = Measuring Point TP = Tune Potentiometer IC = The “U” designator used for integrated

circuits (IC) on all other PCBs.

T = Transistor

INPUT BUFFER

Originating from the Phaco Controller via the Phaco Backplane, cautery control signal inputs PULSE_UP (PU), PULSE_DOWN (PD) and CAUTERY_ ENABLE (CAUTEN*) enter at edge connector J1. These signals are buffered and pulled-up to provide the on-board cautery controls.

UP/DOWN COUNTER

The buffered PU & PD signals are combined with NAND gates to control the Up/Down Counters as follows:

A single count increment/decrement occurs for each HI pulse from either PU or PD signal. Both signals at logic

PU PD IC3&4 LO LO HOLD COUNT HI LO STEP UP LO HI STEP DOWN HI HI RESET

HI reset the counters to zero. The Counters output 4 bits each (1 byte) of binary data to the Digital-to-Analog Converter.

DIGITAL-TO-ANALOG CONVERTER (DAC)

The Up/Down Counter bits are input to a DAC for conversion to a corresponding analog voltage from 0 Vdc to +5 Vdc based on VREF. With an input count range of 0-255, this translates to 19.6 mV/count. The resulting voltage at MP1 controls the PWM duty cycle to regulate cautery power.

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FEEDBACK BUFFER

Non-inverting Op-Amp buffers the DAC output voltage to provide feedback signal CAUTERY_POWER (CAUT_PWR). This voltage is monitored by the 80C196 Control Processor on the Phaco Controller to verify PU & PD control response. On the Phaco Controller schematic, the CAUT_PWR signal is designated as ACH5.

AMPLIFIER/FILTER

Two stages of the Compliance Comparator multiply the DAC voltage times 4, and low-pass filter the output to smooth DAC voltage changes. An output offset of +2.5V (VREF/2) applied to the Compliance Comparator centers the PWM input voltage above ground.

PULSE WIDTH MODULATOR (PWM)

The PWM functions as a switching controller for the DC Power Regulator. The PWM oscillates at about 20KHz with a variable Duty Cycle (pulse width) determined by the amplified DAC input voltage.

PWM Functional Sequence:

1) EN* goes LOW at Pin 10 to enable PWM.

DIGITAL MULTIVIBRATOR

The Digital Multivibrator oscillates at 300-400 KHz (per TP2 setting) and functions as the Cautery frequency source. A 50% duty cycle is maintained which is enabled by EN set high when the CAUTEN* control signal goes low. The frequency setting (340KHz nom) is determined by tuning or “peaking” the Cautery output with a potentiometer.

POWER FET

The oscillator signal is buffered to drive the Power FET. When the Power FET is ON (MP4 = high), current from the DC Power Regulator flows through the primary of the Transformer. A feedback current at MP6 is divided and filtered to provide a SENSE voltage to the PWM for compensation under varied loads.

OUTPUT TRANSFORMER

Voltage pulses from the Power FET across the primary of the Transformer are coupled to the secondary (times

2) to deliver the Cautery output voltage. The electrical properties of the transformer and tuned circuit result in a sinusoidal waveform. An output power of 20 Watts (nominal) requires about 110 Vpp calculated as follows:

2) DAC input at Pin 1 sets Duty Cycle.

3) Output square wave at Pin 14 controls DC Pwr Reg.

4) Feedback at Pin 1 via TP1 offsets DAC to set GAIN.

DC POWER REGULATOR/FILTER

The DC Power Regulator functions as a DC-to-DC converter to regulate +85V to a lower voltage. Pass Transistor T1 is switched by the PWM via T2 to deliver pulses of +85V to filter L1 & C13 for smoothing to an average DC level. An increased DAC voltage causes a larger Duty Cycle (pulse width) to increase the DC voltage. The filtered voltage at MP2 is adjusted by TP1 which controls the closed-loop gain.

COMPLIANCE COMPARATOR

The Compliance Comparator (required by IEC-601) is a safety circuit to disable cautery power in case of a DC Power Regulator failure. The regulated DC voltage at MP2 is monitored and compared to a +7.5 V reference. If MP2 exceeds +70V, the PWM is disabled.

Assumptions:

Standard Load = 75Ω, P = 20 Watts

P = IV, I = V/R Therefore: P = (V/R)V = V2/R

P = V2/R Where: P is Cautery Power V is RMS Output Voltage R is Standard Load

Calculate V:

V2 = PR: V = √(PR) = √(20x75) = 38.73 Vrms

Convert V to P-P:

Vpp = Vrms x 2√2 = 38.73 x 2.828 = 109.5 Vpp

By opening a relay, regulated DC voltage is removed from the output Transformer, the LED turns ON, and the STATUS signal goes HIGH to inform the Phaco Controller PCB.

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PHACO SUBSYSTEM (software V3.12 and above)



(PHACO BACKPLANE)

®

TX/RX

NeoSoniX

CONTROLLER

PCB

SERIES 20000

HANDPIECE

CONNECTOR

PANEL

U/S 1

U/S 2

™*

LEGACY

ST10F168

Central Processor

The Phaco Subsystem for systems upgraded to run software version 3.12 and above consists of 5 assemblies: NeoSonix™* Controller PCB, Backplane PCB, Cautery PCB, Cable Connector panel, and Cable W-107. See Figure FO-8 at the end of this section for a detailed block diagram of the Phaco Subsystem.

The NeoSonix™* Controller PCB assembly contains the circuitry which controls the Phaco Subsystem. It is the central point of all communication within the Phaco Module. Two way communication with the Host is achieved by an RS422 serial communication link. This is accomplished with an RS422 converter I.C. through the TRANSMIT (TX+, TX-), and the RECEIVE (RX+, RX) signals. All system level commands and data are transferred through this interface. The only other communication to the Host is done with the following system control signals: FPUP (PEDAL_UP), TEST*, DISABLE, and RESET.

Once a command is received from the Host, the NeoSonix™* Controller performs the appropriate action by communication to the appropriate part of the subsystem.

The NeoSonix™* Controller PCB performs all electrical processes necessary to drive a variety of ultrasonic handpieces. Two interdependent control loops, power and frequency, are used to control the stroke of the ultrasonic handpiece. The power control loop monitors and maintains the appropriate handpiece drive power. The frequency control loop maintains continuous tuning of the handpiece to compensate for handpiece loading and drift. These control loops are completely contained on the NeoSonix™* Controller PCB which contains the

CAUTERY PCB

COAG

circuitry to create the sinusoidal drive voltage and frequency with analog feedback to close the loop. The NeoSonix™* Controller digitizes and processes this feedback to provide a continuous tracking digital control loop. It also contains various circuitry to detect fault conditions, disable power output, and communicate the fault to the Host.

The Cautery PCB generates sinusoidal electrical signals at varying power levels necessary to drive a variety of electrosurgical cautery probes. Also, the Cautery PCB contains the safety circuitry to detect a fault condition within the PCB and communicate this fault to the NeoSonix™* Controller which in turn disables the Cautery PCB and communicates the fault condition to the host. All power adjustments and control functions are communicated to the Cautery PCB by the NeoSonix™* Controller. The Backplane PCB provides the intra-module communication link as well as channeling all dc power to the subsystem. It has a single ground plane that is common to all supplies. The backplane is completely passive, i.e. no semiconductors reside on the backplane. The Backplane also makes power available to the cooling fan for the NeoSonix™* Controller PCB.

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All electrical output for U/S and cautery handpieces is conducted through cable assembly W-105. Functionally, the NeoSonix™* Controller has only one ultrasound output port. The second output port is wired directly to the first port and it is provided as a backup. The cable supports both the low and high voltage signals necessary for the ultrasonic “smart” connector. The high voltage signals are physically separated from the low voltage signals with their own jacketed and shielded cable. Due to the sensitivity of the cable capacitance to handpiece/ driver performance, the shield is not grounded. However, redundant chassis grounding is maintained to the panel connector through the connector case as well as an internal pin connection to a chassis grounding lug. For the purpose of maintaining necessary creapage distance (IEC601 requirement) of the high and low voltage signals, the three ports are separately connected on the NeoSonix™* Controller PCB (see Table 2-3 for connections).

Table 2-3 NeoSonix™* ControllerPCB Connections

FUNCTION

Top Port High Voltage U/S Port A Top Port Low Voltage U/S Port A Bottom Port High Voltage U/S Port B

Bottom Center Port Low Voltage U/S Port B

NeoSonix™*

CONTROLLER

CONNECTOR

J13

J14

RESET GENERATOR

Reset generation is performed by the Reset Generator which is used as a buffer for an external reset. The External Reset (XRST*) signal is generated from the host during power up for synchronization of Host/ Subsystem communication.

POWER SUPPLY MONITORING

The NeoSonix™* Controller has the ability to measure the +15V, -15V and +12V, +24V, +85V power supplies. This is done through mapping the desired voltage to

0.4V. The 10-bit ADC inside the processor then digitizes the desired voltage. The status of these supplies is sent back to the Host upon request.

U/S DRIVER CIRCUIT

The U/S Driver Circuit is contained on the NeoSonix™* Controller PCB and is composed of the circuit descriptions that follow.

HANDPIECE CONNECTOR, INPUT ISOLATION & RESISTOR/CODE

Prior to tuning a handpiece, the system must know which type of handpiece is present and its voltage calibration. The Phaco subsystem reads each of the handpiece ports any time the footswitch is in the “up” position. The “up” position is determined by the FOOTPEDAL UP (FPUP) signal that is generated by a micro-switch within the footswitch.

NEOSONIX™* CONTROLLER PCB

SUBSYSTEM KERNEL

BUFFERED CAUTERY CONTROL AND STATUS READ

Control of the Cautery PCB is accomplished in an identical fashion to the Series Ten Thousand™*. This is done with the active low signals: POWER UP (PU*), POWER DOWN (PD*) and ENABLE (ENABLE*). These control lines are buffered and sent to the Cautery PCB via the Backplane PCB. The ST10F168 Control Processor reads the existing state of the above lines as well as the Frequency Gate (FRQGATE*) and the STATUS lines. The STATUS line is generated on the Cautery PCB. This active low signal is a fault indication from the IEC601 compliance check circuitry on the Cautery PCB.

Each ultrasonic handpiece (U/S375, Turbosonic, and Mackool) has low level logic and analog signals embedded in the handpiece connector for the purpose of handpiece recognition and calibration. Recognition of the handpiece is determined by the value of a resistor inside the handpiece connector. The resistor is connected between the Buffered 5 V Reference and the Calibration Resistance (CALR) lines. The NeoSonix™* Controller has within its memory certain predetermined handpiece parameters such as nominal handpiece voltage and tuning frequency range. These parameters are handpiece type dependent.

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The handpiece resistance is read by measuring the voltage across the resistance. The signals are buffered and scaled by a scale amplifier. The scaled resistor voltage is measured by the NeoSonix™* Controller on ANALOG CHANNEL 4 (ACH4). The digital signals (PROG0- 2) are read through port P2 bits 0,1 and 2.

Each NeoSonix™* handpiece has an EEPROM device installed in its connector. All data such as ID, ultrasound calibration, and motor calibration are digitally stored in the device.

NCO (NUMERICALLY CONTROLLED OSCILATOR)

The tuning process determines the correct operational frequency and control set point for operation of the handpiece. The NCO generates the desired drive frequency. This device is capable of generating frequencies within 0.009 Hz accuracy. Therefore, coarse and fine frequency controls are no longer required as in the previous Phaco subsystem.

CURRENT DAC (DIGITAL TO ANALOG CONVERTER)

Handpiece voltage adjustment occurs through an 8-bit Serial Current DAC. The DAC sets the output voltage of the adjustable DC-DC converter. The ST10F168 contains a SPI (Serial Peripheral Interface) which enables the software to communicate with all SPI devices

ULTRASOUND ENABLE LOGIC

The ultrasound enable logic is created by the ST10F168. This signal, which is present at TP19, is also an input to PLD (U23). The PLD outputs RSWITCH and LSWITCH are the low-level drive signals for the power amplifier. RSWITCH and LSWITCH are enabled through a logical function of the following signals: TEST*, FPUP, and DISABLE. Table 2-4 summarizes the logic of ultrasound enabling. In addition to the enable logic, ultrasound power is enabled only in a “no ground fault” condition.

Table 2-4 U/S Enabling Logic

DISABLED GFAULT FPUP TEST* LSWITCH RSWITCH

0XXX0 0 0XXX0 0 0XXX0 0 0XXX0 0 0XXX0 0 0XXX0 0 0XXX0 0 0XXX0 0 11XX0 0 1X1X0 0 1XX00 0 1 0 0 1 ENABLED ENABLED

SWITCHING POWER AMPLIFIER

The switching power amplifier can provide up to 35 watts of power over a frequency range of 30 to 45 kHz. The amplifier consists of an Adjustable DC-DC Converter, center-tap transformer, and two power MOSFET’s. The Adjustable DC-DC Converter converts the +24V supply voltage to 0 through 20VDC. The adjustment is achieved through Current DAC U14. Output of the DC-DC converter is fed to center tap of the power transformer T1. The remaining two inputs of the power transformer are alternatively pulled to ground by the power MOSFET’s Q1 and Q2.

HANDPIECE VOLTAGE AND CURRENT FEEDBACK

Handpiece voltage feedback is measured on the secondary of the power transformer T1 and is related to the actual handpiece voltage by the turns ratio of current transformer T2. This voltage is scaled to appropriate levels by a scaling amplifier. The scaled ac handpiece voltage is then passed to a rms/dc converter, which converts the rms value of the ac voltage to an equivalent dc level.

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Handpiece current feedback is measured on the secondary of the power transformer T1 and is related to the actual handpiece current by the turns ratio of the current transformer T3. This current is scaled to appropriate levels by a scaling amplifier. The scaled ac handpiece current is then passed to a rms/dc converter, which converts the rms value of the ac voltage to an equivalent dc level.

GROUND FAULT DETECTION AND IEC601 COMPLIANCE CHECK

The ground fault circuitry detects the condition of a broken earth ground connection between the handpiece and earth (chassis) ground. A ground fault can only exist if the SHIELD and GND connections are both broken. If this occurs then a voltage across the stray capacitance between the now floating handpiece shell and earth ground is measured. This voltage (GFAULT) is indicated at the return side of the transformer. GFAULT is scaled down by an R/C network for input protection to the Ground Fault Detector. This scaled sinusoidal voltage is compared to a 5 vdc reference voltage created by 10VREF and a resistor network.

If the peak value of the scaled GFAULT voltage ever exceeds 5V, a ground fault is initiated. This signal is latched and immediately disables the ultrasound power. The GFAULT needs to exceed approximately 38.5 Vrms for a fault to occur. This disabling is entirely under hardware control. If a true fault exists then it cannot be overridden by software. However, if a transient fault exists then the latched fault can be reset by software with the FRST signal.

CAUTERY PCB

The Cautery PCB for systems using software version

3.12 or above is the same as the PCB used for V3.01 and below. Refer to Cautery PCB description in Phaco Subsystem theory for V3.01 and below.

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STEERABLE I/A SYSTEM (OPTION)

SERIES 20000

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LEGACY

The Steerable I/A system consists of a flexible, steerable irrigation/aspiration tip with an accompanying handpiece and drive mechanism. The Steerable I/A System is used in I/A mode to remove cortical material via aspiration while maintaining chamber pressure with irrigation.

The system provides aspiration and irrigation and the ability to continually adjust the tip in the eye from a straight position to a fully bent position. The ability to steer the tip provides the operator with greater access to all cortical material in the eye. The operator has the ability to steer the tip via the footswitch. The distal end of the tip will remain in the selected position until changed by the operator via the footswitch.

The Steerable I/A System is an option that is installed in the STTL console. Once installed the Steerable I/A is selected in the Custom mode by pressing the Custom key. All functions of the Irrigation/Aspiration (I/A) mode are available when the Steerable I/A System is installed and selected.

FUNCTIONAL DESCRIPTION

The Steerable I/A PCB provides control of the Steerable I/A Drive Mechanism system which is a separately enclosed module (see Figure 2-9). The module is controlled by the Legacy console through the backplane connector J20. The Steerable I/A PCB is designed around the Atmel AT90S8515 microcontroller. The AT90S8515 CPU is operating at an oscillator rate of 8MHz, resulting in an execution state time of 250nS.

The Steerable I/A PCB provides the following control and monitor functions:

• Atmel AT90S8515 Microcontroller

• Serial Communication Drivers

• Solenoid Control/Feedback and Status LED’s

• Serial 12-bit 8-Channel Analog to Digital Converter

• Air Tank Pressure Transducer

• Handpiece Pressure Transducer

• System Control Signals

• Power Inputs, Fuses and Filters

• In-system Programmable

Atmel AT90S8515 Microcontroller

The AT90S8515 programmable microcontroller has four 8-bit bi-directional I/O ports (PA-PD). These ports have three data memory address locations allocated for Data Register, Data Direction Register and Port Input Pins. Interrupt Configuration

The AT90S8515 microcontroller has twelve different interrupt sources available for use. Generally the lower the address the higher is the priority level.

Watchdog Timer

The microcontroller’s internal watchdog timer is used by the Steerable I/A system. The Watchdog reset interval can be adjusted from 16 to 2048 ms by software changes on the Watchdog Timer prescaler.

Serial Communication Drivers

The serial communication drivers provide translation from single ended TTL level information to RS422 differential level information for a more reliable transfer of data.

Solenoid Control/Feedback and Status LED’s:

Port C on the microcontroller is used to control circuitry for the Steerable I/A pump, solenoids, and CPU status LED’s.

Serial 12-bit 8-channels Analog to Digital Converter

The microcontroller Port B pins are used to interface with a 12-bit 8-channel Serial Analog to Digital Converter in order to monitor the handpiece and air accumulator pressures and reference voltage. In addition it also monitors the solenoid feedback and 24V status.

Air Tank Pressure Transducer

The air tank pressure signal is monitored by the microcontroller through the Serial ADC. The pressure reading sets at 1V = 10 PSI or .01 PSI per mV. The transducer reference voltage REF1.2 (1.20V) is continually monitor by the microcontroller through the Serial ADC.

Handpiece Pressure Transducer

The handpiece pressure signal is monitored by the microcontroller through the Serial ADC. The pressure reading sets at 1V = 10 PSI or .01 PSI per mV. The transducer reference voltage REF1.2 (1.20V) is continually monitor by the microcontroller through the Serial ADC.

System Control Signals

The Host maintains control over the Steerable I/A Drive Mechanism through the Test* and Reset5* system control signals.

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LEGACY

Power/Feedback/Voltage Status

The Steerable I/A PCB receives voltages from the system for +5V, +15V, -15V and +24V. The Steerable I/ A PCB generates a status signal for each of these voltages which is monitored by the system. In addition an opto-coupler provides voltage status for -15_OK (OK= 0). There are also +5V and CPU status LED’s on the secondary side of the Steerable I/A PCB:

• +5V Status LED, CR5 (Green LED on indicates

+5V is OK)

• CPU Status LED, CR2 (Blinking Green LED

indicates the CPU running)

RS 232/242

MICRO-

CONTROLLER

FROM BACKPLANE

Fuses and Power Filters

The Steerable I/A Control PCB provides resetable polyswitch fuse (RF1) protection for +24V. The fuses are rated at 1A with a strip current at 2.2 A. Power capacitors are located near J1 and decoupling capacitors are used at each integrated circuit.

TEST* RESET5*

TO MOTOR

SOLENOID

DRIVERS

TO SOLENOID MANIFOLD

STATUS SIGNALS

VOLTAGE

REFERENCE

AND

STATUS

SENS_TN SENS_HP

AIR TANK

TRANSDUCER

Figure 2-9 Steerable I/A Control Block Diagram

HANDPIECE

TRANSDUCER

8 CHANNEL

SERIAL

ADC

HNDPC2_FB

VENT2_FB

SOLENOID/

MOTOR

STATUS

906-2000-501 2-33

Page 94

SERIES 20000

™*

LEGACY

THIS PAGE INTENTIONALLY BLANK

2-34 906-2000-501

Page 95

SERIES 20000™* LEGACY



ISA

BUS

REMOTE SWITCH STATUS

VARIOUS PCB

REVISION

SIGNALS

BUS

ISA

SD0

SD7

OSC

IOW* IOR*

RESET

SA0

SA16 LA17

LA23

R_SHTDN*

S2*

(IV_REV)

FS_REV SPAREREV VID_REV

BUS_REV MFB_REV

REV

MEMW*

MEMR*

MULTIFUNCTION PCB

SD0-7

LD0-5

BUFFER

ADC

TEST POINTS

TP1

BA0-23

SD0-7

REVISION CONTROL

MUX

BD0-7

TP2

WATCH-

DOG

TIMER

VOICE CONTROL

BD0-7

POST CODE DISPLAY

BD0-7

DECODERS

VOICE

CONTROL

REG.

VOICE

STATUS

REG.

DECODER

BD0-6

SD0-7

LATCH



CONTROL

SIGNALS

BUFFER

SYNTHESIZER

BLANK

SPEECH

BUS

XCVR

LD0-7

COUNTER

RSTAT1*

S1* LOCK* ILIMIT*

BFAULT*

INTB*

FANFAIL*

SRST1*

R_SHTDN*

FA0-20

FD0-7

3.58MHz

SYSTEM STATUS

REG.

LD0-7

SYSTEM STATUS

BUFFER

FA18-20

VOICE

MEM.

FLASH

EPROM

-12V

PROGRAM

VOLTAGE

DECODERS

SERIAL COMMUNICATIONS INTERFACE

OCTAL

DECODER

FLASH

VOICE

UART

BD0-7

-15V

ULOCK*

CHIP SELECTS

INT0-3

FLIP-FLOP

UNLOCK

TX1-8

RX1-8

MUSIC

SYNTH.

DAC

VINA VINB

LINE

DRIVERS

LINE

RECEIVERS

SYSTEM CONTROL

SYSTEM

CONTROL

REG.

TONE & VOLUME CONTROL

DAC

TONE

DISABLE &

OUTA OUTB

LOCK

BD0-7

INT0-3

IRQINH BLANK RSHDN

OP

AMPS

LOCK

BD0-7

SYSTEM

RESET

LOCK

TX1-8 RX1-8

INTERRUPT

VOLUME

DISABLE

LOGIC

Relay

RESET

REG.

TX2+ TX2RX2+ RX2-

TX3+ TX3RX3+ RX3-

TX4+ TX4RX4+ RX4-

IRQ10

SPKR+

SPKR-

RESET2* RESET3* RESET4*

SHUTDOWN

DISABLE2* DISABLE3* DISABLE4*

SERIAL COMMUNICATION TO SUBSYSTEMS

ISA

BUS

TO POWER

SUPPLY

TO SPEAKER

SYSTEM

CONTROL SIGNALS

TO SUBSYSTEMS

Figure FO-1. Multifunction PCB Block Diagram

906-2000-501 2-35

Page 96

SERIES 20000™* LEGACY



OPTICAL

ENCODER

™*

SIDE

SWITCHES

FSUP/

SPRING FAIL

SWITCHES



DETENT

MOTOR

SERIES 20000 FOOTSWITCH

TILT-SAFE

(Hg) SWITCH

LV RV LH

RH L_HEEL R_HEEL

FS_UP

FS_CHB

FS_CHA

+24V

SOL-

REAR

PANEL

J1 P15



P12

W-111

BACKPLANE

J15

SYSTEM

+24V

P3J9

MULTIFUNCTION PCB

LV RV LH

RH L_HEEL R_HEEL

FS_UP

FS_CHB

FS_CHA

BD0-7

SOL-

+ +

DAC



RP1

OPTICAL

ISOLATOR

FTSW

CONTROL

REG.

OPTICAL

ISOLATOR

FS_UP

ATFSUP*

FSRST*

TGS/ATF*

REFLUX

CHB

CHA

ADC

CONTROL

LOGIC

DECODER/

COUNTER

UP*

FTSW

STATUS

REG.

BUFFER

BD0-7

PEDALUP

TEST*

SYSTEM

CONTROL

SIGNALS

Figure FO-2. Footswitch Interface Block Diagram

906-2000-501 2-36

Page 97

SERIES 20000™* LEGACY

MULTIFUNCTION PCB

DECODER/

COUNTER

CNTRST*

BUFFER

IV POLE

STATUS 

REG

BD0-7

IV POLE

CONTROL

REG

CNTRST*

BRKREL*

SEE MULTIFUNCTION PCB BLOCK DIAGRAM (Sheet 1)

EN*

UP*/DN

I_LIM*

IV_CHA IV_CHB

S1*

SYSTEM

BACK

PLANE

J11 P11

PCB

W-102

IV POLE PCB

OPTICAL

EN*

ISOLATORS

UP*/DN

I_LIM*

CH_A

CH_B

BRKREL*

IV_REV

OPTICAL

ISOLATOR

DS2

FAULT

LED

OPTICAL

ISOLATOR

S1* S1_IN

REV

DS1

+24V

MOTOR

CONTROLLER

F/R

ISOLATORS

FET

DRIVER

DS3 +5V

BRK

+24V

OPTICAL

FET

DRIVER

FET

DRIVER

FET

DRIVER

MOSFETS

+24V

PHA

PHB

PHC

HSNSR1 HSNSR2 HSNSR3

SNSR_PWR

SNSR_RTN

BRKREL_0

P3 J7 P7

BRUSHLESS

HALL-EFFECT

SENSOR 1

DC MOTOR

SENSORS

BRAKE

Figure FO-3. IV Pole Interface Block Diagram

906-2000-501 2-37

Page 98



VIDEO PCB

SERIES 20000™* LEGACY

ISA

BUS

MULTI-

FUNCTION

PCB

SD7

SD0

SA19

SA0

OSC

RESET2*

SD0-7

SA0-15

DATA

BUFFER

ADDRESS

BUFFER

CLOCK

GENERATOR

CLK0 CLK1 CLK2

FRONT PANEL POWER DELAY

CIRCUITRY

VIDEO

BIOS

EPROM

AD0-15

SA16-19

TEST POINTS TP1

TP2

+5VRTN CLK0

BUFFER

FLAT

PANEL

CONTROLLER

DS1

+24V

VID0-7

AR0-5 AG0-5 AB0-5

ADDRESS

DATA

DATA_EN*

VOLTAGE OK LEDs

DS2 +15V

DS4 +5V

DS5

+12V

DS3

-15V

FLAT

PANEL

COLOR

PALETTE

VIDEO

MEMORY

DRAM

FRONT

PANEL

DRIVERS

R0 R1 R2 G0 G1 G2

PCLK

B0 B1 B2

HSYNC

VSYNC

+12V_EN*

+5V_EN*

VID_REV

REV

SYSTEM

BACKPLANE

PCB

MULTI-

FUNCTION

PCB

J10J7

J17

P10

P17

W-129

W-125

FRONT PANEL

SUBSYSTEM

(SEE FPSS

THEORY FOR

DETAILS)

Figure FO-4. Video PCB Block Diagram

906-2000-501 2-38

Page 99

SYSTEM CONTROL

AND COMMUNICATIONS

FROM MULTIFUNTION PCB

LCD POWER ENABLE

FROM VIDEO PCB

VIDEO DATA FROM

VIDEO PCB

FRONT PANEL CONTROLLER PCB

DISABLE2 PEDALUP TEST

RESET2*

TX+ TXRX+ RX-

+12V_EN* +5V_EN*

RESET

GENERATOR

DVR/RCVR

J5P5

R0 R1 R2 G0 G1 G2

PCLK

B0 B1

B2 HSYNC VSYNC

VOLTAGE INDICATOR LEDs

-15V

+15V

CPU OK

(BLINKING)

+12V

+24V

SUBSYSTEM

KERNAL

+12V

+5V

+12V CNTRL

+5V CNTRL

TEST POINTS

TP1

TP4

EMOV*

SERIES 20000™* LEGACY

ROW1 ROW2 ROW3 ROW4

82C55

I/O

DRIVER

TCH SCRN

INTERFACE

DRIVER

MUX

COL1 COL2 COL3 COL4 COL5

PWM +12V

DDATA

DCLK

RST*

LEDREV

LCD12V

LCD5V

PCLK

HSYNC

VSYNC

ILLUMINATION

J1 P1

Y+

Y-

X+

X-

J7 P7

J3 P3

SA SB SC SD SE SF SG DP

J4 P4

R0 R1 R2 G0 G1 G2

B0 B1 B2

J1 P1

W-131

CN1

W-126

J8 P8

TP2

TP3

+5V

RESET2*

TP5

RST*

+12V

When LCD PN 088-031 is used, the Inverter 

is located on the Front Panel Control PCB.

INVERTER

W-128

CN2

CN3

ELASTOMER

KEYS

LED

LAYER

TOUCH

SCREEN

DISPLAY PCB

LEDs

DRIVER

SHIFT

REV

COLOR

LCD

BACK-

LIGHT

INFRARED

LEDs

LED DVR

IR

DETECTOR

BACK- LIGHT

LEDs

When LCD PN 200-1836-001 or 200-1721-001 is used,  the Inverter is located on a separate PCB.

J8 CN8

CN1

+12V

FRONT PANEL

CONTROLLER

PCB

W-720

REMOTE CONTROL

A/B

SEL

CPU

87C751

(W/EPROM)

MEMBRANE

KEYS

PCB

CN2

CN3

INVERTER

PHOTOCELL

AMP

CMPR

PWR

CONTROL

Vcc

ON/OFF

SWITCH

BATTERY

ON/OFF

PYROELECTRIC

AMP

CMPR

SENSOR

LCD

BACK-

TOP

LIGHT

BOTTOM

Figure FO-5. Front Panel Subsystem Block Diagram

906-2000-501 2-39

Page 100

SERIES 20000™* LEGACY

CASSETTE TYPE

PCB

SW1

SW2

TRANSDUCER PCB

MT1

+10 V  REF

HOST SYSTEM

VIT_E VIT_A VIT_B VIT_C

VLV_A_FB VLV_B_FB

VLV_C_FB VLV_E_FB

RFX_SW IRRIG_SW RF_SOLEN

IR_SOLEN

AV_SOLEN

STEP_A STEP_B STEP_C STEP_D

P3 J3

FLUIDICS

BACK-

PLANE

PCB

J1 P1

J5 P5

W-108

W-110

ANTERIOR PNEUMATIC MODULE

ANTERIOR VIT DRIVE PCB

P1 J1

PERISTALTIC

PUMP

STEPPER

MOTOR

HEXFET DRIVERS

ISOLATORS

PLUNGER SWITCHES

REFLUX SOLENOID

IRRIGATION SOLENOID

AIR VENT SOLENOID

VALVES

ANTERIOR

COMPRESSOR

FLUIDICS

J3 P3

BACK-

P5 J5J1 P1

PLANE

W-110

PCB

CST_S1 CST_S1_P

CST_S2_P CST_S2

+5 V +5 V

SUBSYSTEM

KERNAL

R24

P4 J4

AMP

P1 J1

W-108

VAC_X_A

VAC_X_B

TXD +3

TXD -3 RXD +3 RXD -3

DISABLE3

PEDAL UP TEST*

RESET3*

DIODE

CLAMP

SERIAL COMM.

DRIVERS

RESET

LOGIC

RST RST*

FLUIDIC CONTROLLER PCB

AD0 - AD15

REFLUX AIR_VENT

CPU_RDY*

DISABLE

IRRIG

SOLENOID

CONTROL

LOGIC

82C55A

I/O

MOTOR DRIVER

CONTROL

LOGIC

ENABLE 1

PHASE A, B, C, D,

VOLTAGE INDICATOR LEDs

CPU OK

(BLINKING)

VIT DRIVER BUFFER

OPTICAL

AVENT_FB

PUMP_EN

SWITCH

SOLENOID

FET

DRIVERS

ENABLE 1

STEPPER MOTOR

FET DRIVERS

+5 V +15 V

-15 V +24 V

Figure FO-6. Fluidics Subsystem Block Diagram

906-2000-501 2-40

Alcon Phaco machine Series 20000 Legacy Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

IMPORTANT NOTICE

MANUAL REVISION RECORD

TABLE OF CONTENTS

LIST OF ILLUSTRATIONS

LIST OF TABLES

Section One-General Information

REFERENCE DOCUMENTS

RECEIVING INSPECTION

UNPACKING AND SETTING UP THE SYSTEM

CAUTERY, DIATHERMY, COAGULATION

ELECTRONIC SYSTEM

SYSTEM DESIGN

REMOTE CONTROL

MODES AND FUNCTIONS

Irrigation

FOOTSWITCH

HANDPIECE AND TIP DESCRIPTIONS

CONSUMABLE PAK CONFIGURATIONS

QUICK SYSTEM SETUP AND PROGRAMMING FOR V3.01 AND BELOW

SYSTEM OVERVIEW

POWER SUPPLY

COMMON INTERFACE SIGNALS

SUBSYSTEM KERNEL DESIGN

HOST SYSTEM

CPU PCB

MULTIFUNCTION PCB

FOOTSWITCH INTERFACE

IV POLE PCB

VIDEO PCB

FRONT PANEL SUBSYSTEM

FRONT PANEL CONTROLLER PCB

DISPLAY PCB

REMOTE CONTROL

FLUIDICS SUBSYSTEM

FLUIDICS CONTROLLER PCB

TRANSDUCER PCB

CASSETTE TYPE PCB

FLUIDICS BACKPLANE PCB

ANTERIOR PNEUMATIC MODULE

ANTERIOR VIT DRIVE PCB

ANTERIOR COMPRESSOR

PHACO CONTROLLER PCB

U/S DRIVER PCB

CAUTERY PCB

CAUTERY PCB