LIFEPAK
®
20
LIFEPAK 20e
Defibrillator/Monitor with
1
Service Manual
ADAPTIV™ Biphasic Technology
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LIFEPAK 20/20e Defibrillator/Monitor Table of Contents
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Preface Safety Device
Description
Performance
Inspection
Procedure
Battery
Maintenance
Instrument
Calibration
Replacement
Procedures
Troubleshooting Preventive
Index
Modes of
Operation
Maintenance
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LIFEPAK 20/20e Defibrillator/Monitor Section Contents
(Conti
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Preface
This service manual describes how to maintain, test, troubleshoot, and repair the
LIFEPAK 20 defibrillator/monitor or LIFEPAK 20e defibrillator/monitor (device).
Note: Except where specified, the information in this manual pertains to both
the LIFEPAK 20 and 20e defibrillator/monitor.
Separate publications, the LIFEPAK 20 Defibrillator/Monitor Operating
Instructions (MIN 3200750) and LIFEPAK 20e Defibrillator/Monitor Operating
Instructions (MIN 3205878), are used 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 the name of a button,
menu, menu item, screen message, or screen overlay appears in all
caps, for example,
This section covers the following topics:
ANALYZE button and SETUP menu.
Trademarks
Using Adobe Reader
Navigating Through the Manual
Viewing the PIP Checklist
Service Personnel Qualifications
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LIFEPAK 20/20e Defibrillator/Monitor Section Contents
Preface (continued) Contacting Medtronic
Responsibility for Information
Device Tracking
Service Information
Warranty Information
Configuration Information
Glossary
Acronyms
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Trademarks
1-5
LIFEPAK, FAST-PATCH, and QUIK-COMBO are registered trademarks of
Medtronic Emergency Response Systems, Inc.
CODE SUMMARY, REDI-PAK, PARTSLINE, Shock Advisory System, and
ADAPTIV are trademarks of Medtronic Emergency Response Systems, Inc.
Medtronic is a registered trademark of Medtronic, Inc.
Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
Tektronix is a registered trademark of Tektronix Incorporated.
QED 6 is a trademark and Fluke is a registered trademark of Fluke Biomedical
Corporation.
Masimo, SET, and LNOP are registered trademarks of Masimo Corporation.
© 2002-2007 Medtronic Emergency Response Systems, Inc. All rights reserved.
MIN 3202007-001 / CAT. 26500-002703
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Using Adobe Reader
Accessing Adobe
Reader Help
Using Bookmarks
Using Page View
1-6
This service manual opens in Adobe® Reader, which is included on this
documentation CD. For additional assistance using the Adobe Reader program,
access
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 or hide the bookmarks column, click the
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To jump to a bookmark topic, click the desired topic.
Note: A plus sign to the left of a bookmark topic indicates additional topics exist
Click the PAGES tab located to the far left of the screen to view miniature images
of each page in the document. Scroll through the pages and click an image to
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ADOBE READER HELP in the HELP menu.
BOOKMARKS tab located to the
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Navigating Through the Manual
Blue text indicates a hyperlink. Click a link to jump to that topic. Click
in the navigation bar at the bottom of each page to return to your previous
location. The pointer changes to a pointing finger when positioned over a link.
A navigation bar at the bottom of each page also provides helpful links. The
navigation bar includes:
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1-7
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Viewing the PIP Checklist
The LIFEPAK 20/20e Defibrillator/Monitor Performance Inspection
Procedure Checklist is also included on this CD-ROM:
You can view this document by opening the file in Adobe Reader or by clicking
the appropriate links provided in this service manual.
1-8
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Service Personnel Qualifications
Service technicians must be properly qualified and thoroughly familiar with the
operation of the device. 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
1-9
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Contacting Medtronic
1-10
Medtronic Emergency Response Systems
11811 Willows Road Northeast
Redmond, WA 98052-2003 USA
Telephone: 1.425.867.4000
Toll Free (USA only): 1.800.442.1142
Fax: 1.425.867.4121
Internet: www.medtronic-ers.com
www.medtronic.com
Medtronic Europe S.A.
Medtronic Emergency Response Systems
Rte du Molliau 31
Case postale 84
1131 Tolochenaz
Switzerland
Telephone: 41.21.802.7000
Fax: 41.21.802.7900
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Responsibility for Information
This service manual describes the methods required to maintain, test, and repair
the device. It does not address the operation of the device. Qualified service
personnel must consult the appropriate operating instructions and this 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 has access to the information in this service manual,
including any warnings and cautions used throughout the manual.
1-11
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Device Tracking
1-12
!USA
The U.S. Food and Drug Administration requires defibrillator manufacturers and
distributors to track the location of their devices. If your device has been sold,
donated, lost, stolen, exported, or destroyed, or if it was not obtained directly
from Medtronic, please notify the device-tracking coordinator at 1.800.426.4448.
Refer to your operating instructions for more information concerning device
tracking.
Device Tracking:
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Service Information
1-13
Before attempting to clean or repair any assembly in the device, the service
technician should be familiar with the information provided in the Preventive
Maintenance section of this manual.
A qualified service technician should inspect any device that has been
dropped, damaged, or abused to verify that the device is operating within
performance standards listed in the Performance Inspection Procedure (PIP),
and that the leakage current values are acceptable.
Replacement procedures for the device are limited to those items accessible at
the subassembly level. Replacements and adjustments must be made by
qualified service personnel. 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 device, contact your local
service or sales representative. In the USA, call Medtronic Emergency Technical
Service at 1.800.442.1142. Outside the USA, contact your local Medtronic
representative.
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Warranty Information
Masimo® Use
Agreement
1-14
Refer to the warranty statement included in the Maintaining the Equipment
section in the operating instructions.
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 20/20e Defibrillator/Monitor Preface
Configuration Information
This service manual covers existing devices and options through the following
revisions:
■ LIFEPAK 20/20e defibrillator/monitor basic device with ECG
■ Pacing option
■ SpO2 option
1-15
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LIFEPAK 20/20e Defibrillator/Monitor Preface
(Conti
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Glossary
1-16
The following are definitions of terms used throughout this service manual.
■ ADAPTIV™ biphasic technology — Property of the shock waveform
generated by the device. 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).
■ Automated external defibrillator (AED) — The device 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, refer to the Shock Advisory System section in the operating
instructions.
■ CODE SUMMARY™ report — A summary report that consists of a
preamble, an event/vital signs log, and waveforms associated with certain
events. Refer to the Data Management section in the operating instructions
for a sample CODE SUMMARY report.
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(Conti
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Glossary (continued)
1-17
■ Continuous patient surveillance system (CPSS) — A feature that monitors
the patient ECG in
CPSS is active when the
selected after pressing the
LEADS or PADDLES for a potentially shockable rhythm.
AED MODE indicator is on or the VF/VT ALARM is
ALARMS button (manual mode). The CPSS
operates in conjunction with the Shock Advisory System (SAS). For more
information about CPSS and SAS, refer to the Shock Advisory System
section in the operating instructions.
■ 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
personnel in the operation of the device.
■ 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 20/20e Defibrillator/Monitor Preface
Glossary (continued)
1-18
■ Shock Advisory System (SAS) — A computerized ECG analysis system
used to detect a shockable rhythm. For more information about CPSS and
SAS, refer to the Shock Advisory System section in the operating
instructions.
■ SpO2 — A noninvasive pulse oximeter that checks the saturation of oxygen
in arterial blood.
■ Test plug — An accessory used to connect the test load to the patient
connector on the device.
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Acronyms
1-19
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
Ah Ampere hour
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
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LIFEPAK 20/20e Defibrillator/Monitor Preface
Acronyms (continued)
1-20
.Acronyms
Term Description
ECG Electrocardiogram
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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LIFEPAK 20/20e Defibrillator/Monitor Preface
Acronyms (continued)
1-21
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
VF Ventricular fibrillation
VT Ventricular tachycardia
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LIFEPAK 20/20e Defibrillator/Monitor Section Contents
22
Safety
This section describes the general safety conventions, terms, and symbols used
in this service manual or on the device. 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 20/20e Defibrillator/Monitor Safety
Terms
2-2
The following terms are used in this service manual or on the various
configurations of the device. 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 20/20e Defibrillator/Monitor Safety
General Warnings and Cautions
The following are general warnings and cautions. Keep these warnings and
cautions in mind when working with the device. More specific warnings and
cautions appear throughout this service manual and the 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 the patient. Place
the device in a location where it cannot harm the patient should it fall from
its shelf or other mount.
2-3
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 20/20e Defibrillator/Monitor Safety
General Warnings and Cautions (continued)
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.
2-4
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LIFEPAK 20/20e Defibrillator/Monitor Safety
Symbols
2-5
The following list includes symbols that may be used in this service manual or on
various configurations of the device 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
CAT.
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Catalog number used for placing orders
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LIFEPAK 20/20e Defibrillator/Monitor Safety
Symbols (continued)
YYYY
2-6
Date of manufacture
DC voltage
Defibrillation protected, type BF patient connection
Defibrillation-proof type CF terminal
Do not dispose of this product in the unsorted municipal
waste stream. Dispose of this product according to local
regulations. See http://recycling.medtronic.com for
instructions on the proper disposal of this product.
Equipotential connector
Event marker
!USA
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For USA audiences only
Fragile/breakable, handle with care
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LIFEPAK 20/20e Defibrillator/Monitor Safety
Symbols (continued)
2-7
Fuse
Greater than
Heart rate
HOME SCREEN button
Indoor use only
J
Joules
Less than
Device to device cable
YYWW
LOT
MIN
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Lot number (batch code)
Manufacturer’s item number
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LIFEPAK 20/20e Defibrillator/Monitor Safety
Symbols (continued)
0123
2-8
Mark of conformity according to the European Medical
Device Directive 93/42/EEC
Negative terminal
Off (power: disconnection from the ac mains)
On (power: connection to the ac mains)
Pace arrow, internal pacing
Pace arrow, noninvasive pacing
Positive terminal
Power on/off
Protect from water
R-wave sense marker
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LIFEPAK 20/20e Defibrillator/Monitor Safety
Symbols (continued)
REF
(x)
2-9
Recognized component mark for Canada and the United
States
Recycle this item
Reorder number
Safety ground. Protective earth connection
SHOCK button
Shock count (x) on screen
Single use only
Static-sensitive device (SSD)
Switch off
Switch on
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