Medtronic LIFEPAK 20 Service Manual

®

LIFEPAK

1

ADAPTIV



20

Defibrillator/Monitor with

Biphasic Technology

Service Manual

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LIFEPAK 20 Defibrillator/Monitor Table of Contents

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Preface

Modes of
Operation

Preventive
Maintenance

Safety

Performance
Inspection

Battery
Maintenance

Device
Description

Instrument
Calibration

Replacement
Procedures

Operating
Instructions

Troubleshooting

Index

Title Page

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LIFEPAK 20 Defibrillator/Monitor Section Contents

Preface

This service manual describes how to maintain, test, troubleshoot, and repair the
LIFEPAK 20 defibrillator/monitor. A separate publication, the LIFEPAK 20

Defibrillator/Monitor Operating Instructions, is for use by physicians,

clinicians, and emergency care providers. The operating instructions provide
step-by-step instructions as well as operator-level testing and maintenance.

Note: Hyperlinks appear in blue text. Text that indicates a control, buttons,

message, or screen overlay appears as small caps. For example,

ADVISORY

This section covers the following topics:

control and

EVENT

button.

Trademarks

Using Bookmarks

Using Thumbnails

Navigating Through the Manual

Topic Navigation

Accessing Acrobat Help

Viewing Other Medtronic Documents

Service Personnel Qualifications

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface
(Continued)

Contacting Medtronic

Responsibility for Information

Device Tracking

Service Information

Warranty Information

Configuration Information

Glossary

Acronyms

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Trademarks

1-5

PHYSIO-CONTROL, LIFEPAK, and FAST-PATCH are registered trademarks of
Medtronic Physio-Contol Corp.
QUIK-COMBO, CODE SUMMARY, REDI-PAK, PARTSLINE, Shock Advisory
System, and ADAPTIV are trademarks of Medtronic Physio-Control Corp.
Medtronic is a registered trademark of Medtronic, Inc.
MICROSOFT and WINDOWS are registered trademarks of Microsoft
Corporation in the US and/or other countries.
Pentium is a registered trademark of Intel Corporation.
Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
Tektronix is a registered trademark of Tektronix Incorporated.
BIO-TEK is a registered trademark of Bio-Tek Instruments, Inc.
QED is a trademark of Bio-Tek Instruments, Inc.
ACCUSPLIT is a registered trademark of Accusplit Corporation.
Masimo is a registered trademark of Masimo Corporation.

©September 2002 Medtronic Physio-Control Corp. All rights reserved.

PN 3202007-000

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Preface

Using Bookmarks

1-6

Bookmarks appear in a column on the left side of the screen. They enable you to
easily navigate to main sections of the manual, similar to a table of contents.

To view the bookmarks column:

■

Select the

■

Click the

BOOKMARKS

SHOW/HIDE NAVIGATION PANE

tab located to the far left of the screen.

button on the tool bar.

To close the bookmarks column:

■

Click the

SHOW/HIDE NAVIGATION PANE

button on the tool bar..

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Preface

Using Bookmarks
(Continued)

1-7

To move to a topic using bookmarks:

1. Display the bookmarks column.

2. Click the desired bookmark caption.

Note: A plus sign to the left of the bookmark caption indicates subordinate
bookmarks are available under that caption. Click the plus sign to reveal the
subordinate bookmarks. Click the plus sign a second time to hide the
subordinate bookmarks.

3. Click the bookmark text or double-click the page icon to the left of the
bookmark name to jump to the desired topic.

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Preface

Using Thumbnails

A thumbnail is a miniature view of each page in the document. You can use
thumbnails to jump quickly to a page.

To jump to a page by using its thumbnail:

1. Click the
Thumbnail images appear in the overview area of a window.

2. Click a thumbnail to move to the page it represents.

SHOW/HIDE NAVIGATION PANE

button to display thumbnail images.

1-8

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Preface

Navigating Through the
Manual

To jump from topic to topic:

■

Click on any highlighted text or link to jump to that topic. The pointer

changes to a pointing finger when positioned over a link.

To jump from page to page:

■

Click located in the page footer to jump to the

Table of Contents

table of contents.

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Click located in the page footer to jump to the

Section Contents

section contents for the section you are currently viewing.

■

Click located in the page footer to jump to the index.

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Index

Back

document, returning to each screen in the reverse order visited.

1-9

■

Click located in the page footer or press the

Next Page

your keyboard to jump to the next page of the manual.

■

Click located in the page footer or press the

Previous Page

on your keyboard to jump to the previous page of the manual.

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Topic Navigation

Accessing Acrobat Help

1-10

On many pages in the manual, a second line of navigation options appears
directly above the page footer. This second line provides jumps between pages
with multiple topics that are closely related.

For additional assistance using the Acrobat Reader program that came with this
package, access

READER HELP

in the Help menu.

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Preface

Viewing Other
Medtronic Documents

1-11

The following additional online documents are included on this CD-ROM:

■

LIFEPAK 20 Defibrillator/Monitor Operating Instructions

■

LIFEPAK 20 Defibrillator/Monitor Performance Inspection Procedure
Checklist

You may view these documents by opening the file in Acrobat Reader or by
clicking a link to the appropriate document. Click on a document’s table of
contents, section contents, index, or bookmarks to jump to a specific area within
each document.

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Service Personnel
Qualifications

1-12

Service personnel must be properly qualified and thoroughly familiar with the
operation of the LIFEPAK 20 defibrillator/monitor. They must meet at least one of
the following requirements (or the equivalent):

■

Associate of Applied Science, with an emphasis in biomedical electronics

■

Certificate of Technical Training, with an emphasis in biomedical electronics

■

Equivalent biomedical electronics experience

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Contacting Medtronic

1-13

Medtronic Physio-Control

11811 Willows Road Northeast
Post Office Box 97006
Redmond, WA 98073-9706 USA
Telephone: [phone]
Toll Free (USA only): 1.800.442.1142
Fax: [phone]

Internet: www.physiocontrol.com

www.medtronic.com

Medtronic Europe S.A.

Medtronic Physio-Control
Rte. du Molliau 31
Case postale 84
1131 Tolochenaz
Switzerland
Telephone: [phone]
Fax: [phone]

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Responsibility for
Information

1-14

This service manual describes the methods required to maintain, test, and repair
the LIFEPAK 20 defibrillator/monitor. This manual does not cover operation of
the LIFEPAK 20 defibrillator/monitor. Qualified service personnel must consult
both the LIFEPAK 20 Defibrillator/Monitor Operating Instructions and the
LIFEPAK 20 Defibrillator/Monitor Service Manual to obtain a complete
understanding of the use and maintenance of the device.

It is the responsibility of our customers to ensure that the appropriate person(s)
within their organization have access to the information in this manual, including
any warnings and cautions used throughout the LIFEPAK 20 Defibrillator/Monitor
Service Manual.

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

!USA

Device Tracking

1-15

The U.S. Food and Drug Administration requires defibrillator manufacturers and
distributors to track the location of their defibrillators. The address to which this
particular device was shipped is now listed as the current tracking location. If the
device is located somewhere other than the shipping address or the device has
been sold, donated, lost, stolen, exported, or destroyed, or if the device was not
obtained directly from Medtronic, please call the device tracking coordinator at

1.800.426.4448 to update this vital tracking information.

General information related to device tracking:

It is important to maintain accurate records of defibrillator location within your
facility or system. Maintenance of such records eases the process of locating
defibrillators should it be necessary to modify them. Defibrillators should be
tracked by both the manufacturer’s part number and serial number. Internal
asset or tracking numbers may also be useful in maintaining adequate control of
defibrillators.

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Service Information

1-16

Before attempting to clean or repair any assembly in this device, service
personnel should be familiar with the information provided in the Preventive

Maintenance section of this manual.

Service personnel should inspect any defibrillator that has been dropped,
damaged, or abused to verify that the device is operating within the performance
standards listed in the Performance Inspection Procedure (PIP), and that the
leakage current values are acceptable.

Replacement procedures for the LIFEPAK 20 defibrillator/monitor are limited to

those items accessible at the subassembly level. Replacements and
adjustments must be made by service personnel qualified by appropriate
training and experience. Replacements at the subassembly level simplify repair
and servicing procedures, and help ensure correct device operation and
calibration.

To obtain Medtronic service and maintenance for your LIFEPAK 20 defibrillator/
monitor, contact your local service or sales representative. In the USA, call
Medtronic Technical Services at 1.800.442.1142. Outside the USA, contact your
local Medtronic representative.

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Warranty Information

Masimo Use
Agreement

1-17

Refer to the warranty statement included in the LIFEPAK 20 Defibrillator/

Monitor Operating Instructions – Maintaining the Equipment.

No Implied License — Possession or purchase of this device does not convey
any express or implied license to use the device with replacement parts that
would, alone, or in combination with this device, fall within the scope of one or
more of the patents relating to this device.

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Configuration
Information

1-18

This service manual covers existing LIFEPAK 20 defibrillator/monitor devices
and options through the following revisions:

■

LIFEPAK 20 defibrillator/monitor basic device with ECG

■

Pacing Option

■

SpO2 Option

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Preface

Glossary

The following are definitions of terms used throughout this service manual.

■

Automated External Defibrillator (AED) — The LIFEPAK 20
defibrillator/monitor uses an ECG analysis Shock Advisory System (SAS) to
advise the device operator if it detects a shockable or nonshockable rhythm.
For more information about CPSS and SAS, see the operating instructions

– Shock Advisory System.

■

Biphasic — Property of the shock waveform generated by the LIFEPAK 20
defibrillator/monitor. The biphasic waveform is characterized by a positive
current phase followed by a reverse current phase of shorter duration and
decreased magnitude. The waveform pulse characteristic is biphasic
truncated exponential (BTE).

■

CODE SUMMARY™ Report — A summary report that includes the ECG
segments associated with key events such as analysis or shock. See the

operating instructions – Data Management for a sample CODE

SUMMARY Report.

1-19

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Glossary (Continued)

■

Continuous Patient Surveillance System (CPSS) — A feature that monitors
the patient ECG in
CPSS is active when the AED Mode indicator is illuminated or the

ALARM

is selected after pressing the

LEADS

PADDLES

or

for a potentially shockable rhythm.

VF/VT

ALARMS

control (manual mode). The
CPSS operates in conjunction with the Shock Advisory System™ (SAS). For
more information about CPSS and SAS, refer to the operating instructions

– Shock Advisory System.

■

Event Log Summary — A report summarizing important events for a
particular patient record; part of the CODE SUMMARY Report.

■

FAST-PATCH disposable defibrillation/ECG electrodes — An electrode
system that allows delivery of defibrillation therapy to the patient.

■

QUIK-COMBO™ pacing/defibrillation/ECG electrodes — An electrode
system that allows delivery of pacing and defibrillation therapy to the patient.

■

QUIK-COMBO patient simulator — A combination lead tester/patient cardiac
rhythm simulator. The simulator is designed for use in training clinical

1-20

personnel in the operation of the LIFEPAK 20 defibrillator/monitor.

■

REDI-PAK™ preconnect system — A variant of the QUIK-COMBO pacing/
defibrillation/ECG electrodes system. The system allows QUIK-COMBO
pacing/defibrillation/ECG electrode cable connection without removing the
electrodes from their air-tight sealed pouch until needed.

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LIFEPAK 20 Defibrillator/Monitor Preface

Preface

Glossary (Continued)

■

Shock Advisory System™ (SAS) — A computerized ECG analysis system
for use in the detection of a shockable rhythm. For more information about
CPSS and SAS, see the operating instructions – Shock Advisory

System.

■

SpO2 — A noninvasive pulse oximeter that checks the saturation of oxygen
in arterial blood.

■

Test Load — A device that provides an external defibrillation test load for the
defibrillator/monitor. The test load connects to the patient connector on the
device.

1-21

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Preface

Acronyms

1-22

The following is a list of acronyms and abbreviations used in this manual.

Term Description

AAMI Association for the Advancement of Medical Instrumentation
ADC Analog-to-Digital Conversion
AED Automated External Defibrillator
AHA American Heart Association
ANSI American National Standards Institute
BTE Biphasic Truncated Exponential
BF Electrically isolated, external body connection
BPM Beats Per Minute
CF Electrically isolated, direct cardiac connection
CPR Cardiopulmonary Resuscitation
CPU Central Processing Unit
CPSS Continuous Patient Surveillance System
DUART Dual Universal Asynchronous Receiver/Transmitter
DMM Digital Multimeter
ECG Electrocardiogram

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Acronyms (Continued)

1-23

.Acronyms

Term Description

EMS Emergency Medical Service
ESD Electrostatic Discharge
ESU Electrosurgical Unit
HR Heart Rate
IEC International Electrical Commission
LCD Liquid Crystal Display
LED Light Emitting Diode
NHAAP National Heart Attack Alert Program
NSR Normal Sinus Rhythm
OEM Original Equipment Manufacturer
RR Respiration Rate
PC Personal Computer
DSP Digital Signal Processor
PCB Printed Circuit Board
PIP Performance Inspection Procedure
PPM Pulses Per Minute

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Acronyms (Continued)

1-24

Term Description

RISC Reduced Instruction Set Computer

RTC/NVRAM Real-Time Clock/Non-Volatile Random-Access Memory

SAS Shock Advisory System

SSD Static-Sensitive Device

TCP Test and Calibration Procedure

UUT Unit Under Test

VF Ventricular Fibrillation

VT Ventricular Tachycardia

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22

Safety

This section describes the general safety conventions, terms, and symbols used
in this service manual or on the LIFEPAK 20 defibrillator/monitor. This
information is intended to alert service personnel to recommended precautions
in the care, use, and handling of this medical device.

Terms

General Warnings and Cautions

Symbols

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LIFEPAK 20 Defibrillator/Monitor Safety

Safety

Ter m s

2-2

The following terms are used in this service manual or on the various
configurations of the LIFEPAK 20 defibrillator/monitor. Familiarize yourself with
their definitions and significance.

Danger: Immediate hazards that will result in serious personal injury or death.

Warning: Hazards or unsafe practices that could result in serious personal

injury or death.

Caution: Hazards or unsafe practices that could result in device or property

damage.

Note: Points of particular interest for more efficient or convenient device

operation; additional information or explanation concerning the
subject under discussion.

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LIFEPAK 20 Defibrillator/Monitor Safety

Safety

General Warnings and
Cautions

2-3

The following are general warnings and cautions. Keep these warnings and
cautions in mind when working with the LIFEPAK 20 defibrillator/monitor. More
specific warnings and cautions appear throughout this service manual and the
LIFEPAK 20 defibrillator/monitor Operating Instructions.

WARNINGS!

Possible fire or explosion. Do not service this device in the presence of

flammable gases, anesthetics, or oxygen sources.

Shock or fire hazard. Do not immerse any portion of this device in water or

other fluids. Avoid spilling any fluids on the device or accessories. If the
device is ever immersed in water or other fluids, remove the batteries and
disconnect ac power until the device can be serviced.

Patient hazard. Do not mount the device directly above patient. Place the

device in a location where it cannot harm the patient should it fall from its
shelf or other mount.

Shock or fire hazard. Equipment or accessories improperly interconnected

to each other can be a source of ignition or cause a shock. Make sure that
all equipment is interconnected safely.

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LIFEPAK 20 Defibrillator/Monitor Safety

Safety

General Warnings and
Cautions (Continued)

2-4

WARNING!

Shock hazard. Servicing of this device must be performed by properly

trained individuals. This device may retain potentially lethal charges
accessible inside the device at any time – even when off. Follow
procedures carefully for discharging the A13 Energy Storage Capacitor.

CAUTION!

Possible equipment damage. This device may be damaged by mechanical

or physical abuse such as immersion in water or dropping. If the device
has been abused, remove it from use and contact qualified service
personnel.

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LIFEPAK 20 Defibrillator/Monitor Safety

Safety

Symbols

2-5

The following list includes symbols that may be used in this service
manual or on various configurations of the LIFEPAK 20 defibrillator/monitor
and accessories. Some symbols may not be relevant to your device or used in
every country.

[signal] Input

[signal] Output

ac voltage

Alarm off

Alarm on

Attention, consult accompanying documents

Biphasic defibrillator shock

Canadian Standards Association certification for Canada
and the United States

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LIFEPAK 20 Defibrillator/Monitor Safety

Safety

Symbols (Continued)

YYYY

!USA

2-6

Date of manufacture

DC voltage

Defibrillation protected, type BF patient connection

Defibrillation-proof type CF terminal

Equipotential connector

Event marker

For USA audiences only

Fragile/Breakable
Handle with care

Fuse

Greater than

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