Hospira GemStar Operating manual

For use with the following list numbers:
13086-04 13087-04 13088-04
Technical Service Manual
®
Advanced Ambulatory Infusion System
430-10786-002 (Rev. 01/07)

430-10786-002 Hospira GemStar®
©Hospira, Inc.
This document and the subject matter disclosed herein are proprietary information.
Hospira retains all the exclusive rights of dissemination, reproduction, manufacture, and sale.
Any party using this document accepts it in confidence, and agrees not to duplicate it in whole
or in part nor disclose it to others without the written consent of Hospira.

Technical Service Manual i 430-10786-002
Change History
Part Number Description of Change
430-10786-001
(Rev. 05/06) Original issue
430-10786-002
(Rev. 01/07) Second issue

CHANGE HISTORY
430-10786-001 (Rev. 05/06) ii Hospira GemStar®
This page intentionally left blank.

Technical Service Manual iii 430-10786-002
Contents
Section 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 CONVENTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.3 ACRONYMS AND ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . 1-3
1.4 USER QUALIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.5 ARTIFACTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.6 ELECTROMAGNETIC COMPATIBILITY . . . . . . . . . . . . . . . . . . . 1-5
1.7 INSTRUMENT INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . 1-5
1.7.1 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.7.2 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.7.3 SELF TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.8 OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.8.1 THERAPIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.8.2 SAFETY FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.8.3 POWER SOURCES . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.8.4 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Section 2
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Section 3
SYSTEM OPERATING MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Section 4
THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 ELECTRO-MECHANICAL SYSTEMS . . . . . . . . . . . . . . . . . . . . . 4-1
4.1.1 CPU SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1.1.1 CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1.1.2 MEMORY . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.1.1.3 FPGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.1.2 CPU SUPERVISORY FUNCTIONS . . . . . . . . . . . . . . . . . . . 4-4
4.1.2.1 SUPPLY MONITORING . . . . . . . . . . . . . . . . . . . . 4-4
4.1.2.2 POWER-ON RESET . . . . . . . . . . . . . . . . . . . . . . 4-5
4.1.2.3 MEMORY AND TIME RETENTION . . . . . . . . . . . . . . . 4-5
4.1.2.4 WATCHDOG FUNCTION . . . . . . . . . . . . . . . . . . . 4-5
4.1.2.5 CPU ERROR CHECKING/WATCHDOG CIRCUITRY . . . . . . . 4-5
4.1.2.6 WDT PIC/BEEPER PIC/BEEPER DRIVER. . . . . . . . . . . . . 4-6
4.1.3 DISPLAY MODULE/BACKLIGHT . . . . . . . . . . . . . . . . . . . 4-6
4.1.4 KEYPAD/LEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.1.5 BOLUS SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.1.6 TIME-OF-DAY CLOCK . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.1.7 POWER INPUT SENSING/SELECTION CIRCUITRY . . . . . . . . . . . 4-7
4.1.8 INTERNAL POWER SUPPLIES. . . . . . . . . . . . . . . . . . . . . 4-9
4.1.9 ON/OFF CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.1.9.1 POWER ON . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.1.9.2 POWER OFF. . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.1.10 MOTOR DRIVE CIRCUITS . . . . . . . . . . . . . . . . . . . . . 4-10
4.1.10.1 SPEED CONTROL . . . . . . . . . . . . . . . . . . . . . . 4-12
4.1.10.2 POWER CONSERVATION . . . . . . . . . . . . . . . . . . 4-12

CONTENTS
430-10786-002 iv Hospira GemStar®
4.1.10.3 MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.1.10.4 TACHOMETER . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.1.10.5 REDUNDANT MOTOR CONTROL. . . . . . . . . . . . . . . 4-13
4.1.11 MOTOR TACHOMETER POWER CONSERVATION . . . . . . . . . . 4-14
4.1.12 OUTPUT SHAFT ENCODER . . . . . . . . . . . . . . . . . . . . . 4-14
4.1.13 AIR-IN-LINE SENSING. . . . . . . . . . . . . . . . . . . . . . . . 4-15
4.1.14 PROXIMAL PRESSURE MEASUREMENT . . . . . . . . . . . . . . . 4-15
4.1.15 DISTAL PRESSURE MEASUREMENT . . . . . . . . . . . . . . . . . 4-16
4.1.16 RS-232 INTERFACE SYSTEM . . . . . . . . . . . . . . . . . . . . . 4-16
4.2 CASSETTE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.2.1 BODY AND TOP . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
4.2.2 DIAPHRAGM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
4.2.3 FLOW STOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Section 5
MAINTENANCE AND SERVICE TESTS . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 ROUTINE MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1.1 CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1.1.1 SANITIZING . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.1.1.2 CLEANING THE CASSETTE POCKET
AND TUBING CHANNEL . . . . . . . . . . . . . . . . . . . 5-3
5.1.2 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.1.2.1 MATERIALS REQUIRED . . . . . . . . . . . . . . . . . . . 5-4
5.1.2.2 LATCH MECHANISM INSPECTION . . . . . . . . . . . . . . 5-5
5.1.2.3 AIR SENSOR INSPECTION . . . . . . . . . . . . . . . . . . 5-6
5.1.2.4 PLUNGER AND PRESSURE SENSOR INSPECTION . . . . . . . 5-7
5.1.2.5 TOP CAP INSPECTION . . . . . . . . . . . . . . . . . . . . 5-8
5.1.2.6 BOTTOM CAP INSPECTION . . . . . . . . . . . . . . . . . 5-9
5.1.2.7 BEZEL, GRIP, AND KEYPAD INSPECTION . . . . . . . . . . . 5-10
5.1.2.8 BATTERY DOOR AND COMPARTMENT INSPECTION . . . . . 5-11
5.1.2.9 POWER-ON TEST. . . . . . . . . . . . . . . . . . . . . . . 5-14
5.1.2.10 RECHARGEABLE BATTERY PACK. . . . . . . . . . . . . . . 5-15
5.1.2.11 DOCKING STATION . . . . . . . . . . . . . . . . . . . . . 5-16
5.1.2.12 AC ADAPTOR . . . . . . . . . . . . . . . . . . . . . . . . 5-18
5.1.2.13 REMOTE BOLUS CORD AND SWITCH . . . . . . . . . . . . 5-19
5.2 OPERATION TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.2.1 EQUIPMENT REQUIRED . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.2.2 TEST SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.2.3 POWER TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
5.2.4 KEYPAD TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
5.2.5 DISPLAY TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
5.2.6 LED TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
5.2.7 VOLUME ACCURACY TEST . . . . . . . . . . . . . . . . . . . . . 5-22
5.2.8 DISTAL OCCLUSION TEST. . . . . . . . . . . . . . . . . . . . . . 5-22
5.2.9 PROXIMAL OCCLUSION TEST . . . . . . . . . . . . . . . . . . . . 5-22
5.2.10 AIR-IN-LINE TEST . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.2.11 PRINTING THE TEST RESULTS. . . . . . . . . . . . . . . . . . . . 5-23
5.2.12 RESTORING FOR USE . . . . . . . . . . . . . . . . . . . . . . . . 5-24
5.3 PERIODIC MAINTENANCE INSPECTION. . . . . . . . . . . . . . . . . . 5-24

FIGURES
Technical Service Manual v 430-10786-002
Section 6
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 TECHNICAL ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.2 TROUBLESHOOTING REFERENCES. . . . . . . . . . . . . . . . . . . . . 6-1
6.2.1 TROUBLESHOOTING TOOLS . . . . . . . . . . . . . . . . . . . . . 6-2
6.2.2 ALERT/ALARM MESSAGE INDEX . . . . . . . . . . . . . . . . . . . 6-2
6.2.3 PRINTING DEVICE HISTORY . . . . . . . . . . . . . . . . . . . . . 6-4
6.3 SERVICE ALARM CODES . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6.3.1 SERVICE ALARM CODES - QUICK REFERENCE . . . . . . . . . . . . 6-4
6.3.2 SERVICE ALARM CODES - DETAILS . . . . . . . . . . . . . . . . . 6-8
6.4 OPERATIONAL ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . 6-37
Section 7
REPLACEABLE PARTS AND REPAIRS . . . . . . . . . . . . . . . . . . . . . . . 7-1
Section 8
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Section 9
DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

TABLES
430-10786-002 vi Hospira GemStar®
Figures
Figure 1-1. Illustration of the Infuser . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Figure 4-1. Hospira GemStar Block Diagram . . . . . . . . . . . . . . . . . . . . 4-2
Figure 4-2. Board Connector References. . . . . . . . . . . . . . . . . . . . . . . 4-3
Figure 4-3. Power Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Figure 4-4. Motor Control Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Figure 4-5. Detail of Motor Circuit . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Figure 5-1. Cassette Pocket and Tubing Channel . . . . . . . . . . . . . . . . . . . 5-3
Figure 5-2. Cassette Retention and Ejection . . . . . . . . . . . . . . . . . . . . . 5-5
Figure 5-3. Air Sensor Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Figure 5-4. Plunger and Pressure Sensor Inspection . . . . . . . . . . . . . . . . . 5-7
Figure 5-5. Top Cap Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Figure 5-6. Bottom Cap Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Figure 5-7. Bezel, Grip, and Keypad Inspection . . . . . . . . . . . . . . . . . . . 5-10
Figure 5-8. Battery Door Engagement . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Figure 5-9. Battery Door Inspection. . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Figure 5-10. Battery Compartment Inspection. . . . . . . . . . . . . . . . . . . . . 5-13
Figure 5-11. Power-On Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Figure 5-12. Rechargeable Battery Pack . . . . . . . . . . . . . . . . . . . . . . . 5-15
Figure 5-13. Docking Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Figure 5-14. AC Adaptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Figure 5-15. Remote Bolus Cord and Switch . . . . . . . . . . . . . . . . . . . . . 5-19
Figure 5-16. Sample Test Result Printout . . . . . . . . . . . . . . . . . . . . . . . 5-23
Figure 9-1. Hospira GemStar PWA . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Tables
Table 1-1. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Table 1-2. Configuration List Numbers. . . . . . . . . . . . . . . . . . . . . . . 1-7
Table 1-3. Safety Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Table 5-1. Cleaning Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Table 6-1. Troubleshooting Tools . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Table 6-2. Alert/Alarm Message Index . . . . . . . . . . . . . . . . . . . . . . . 6-2
Table 6-3. Service Alarm Codes - Quick Reference. . . . . . . . . . . . . . . . . . 6-4
Table 6-4. Service Alarm Codes - Details . . . . . . . . . . . . . . . . . . . . . . 6-8
Table 6-5. Operational Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37
Table A-1. Guidance and Manufacturer’s Declaration - Electromagnetic Emissions . . . A-1
Table A-2. Guidance and Manufacturer’s Declaration - Electromagnetic Immunity . . . A-2
Table A-3. Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
for Life-Supporting Equipment and Systems . . . . . . . . . . . . . . . A-3
Table A-4. Recommended Separation Distances Between Portable and Mobile RF
Communications Equipment and the Infuser . . . . . . . . . . . . . . . A-5

Technical Service Manual 1 - 1 430-10786-002
Section 1
INTRODUCTION
The Hospira GemStar®is a single-channel infuser designed for use in home care
and hospital settings.
The infuser kit contains the following components:
- Hospira GemStar infuser
- Two AA disposable batteries
- System Operating Manual
1.1
SCOPE
This manual is organized into the following sections:
❏Section 1 Introduction
❏Section 2 Warranty
❏Section 3 System Operating Manual
❏Section 4 Theory of Operation
❏Section 5 Maintenance and Service Tests
❏Section 6 Troubleshooting
❏Section 7 Replaceable Parts and Repairs
❏Section 8 Specifications
❏Section 9 Drawings
❏Appendix
❏Index
❏Technical Service Bulletins
If a problem in device operation cannot be resolved using the information in this manual,
contact Hospira (see Section 6.1).
Specific instructions for operating the device are contained in the Hospira GemStar®
System Operating Manual. Provision is made for the inclusion of the system operating
manual in Section 3 of this manual.
Note: The terms “infuser” and “device” are used interchangeably throughout
the manual.
Note: Figures are rendered as graphic representations to approximate actual product.
Therefore, figures may not exactly reflect the product.

SECTION 1 INTRODUCTION
430-10786-002 1 - 2 Hospira GemStar®
1.2
CONVENTIONS
The conventions listed in Table 1-1 are used throughout this manual.
Throughout this manual, warnings, cautions, and notes are used to emphasize important
information as follows:
CAUTION: A CAUTION usually appears in front of a procedure or statement.
It contains information that could prevent hardware failure, irreversible damage
to equipment, or loss of data.
Note: A note highlights information that helps explain a concept or procedure.
Table 1-1. Conventions
Convention Use Example
Italic Reference to a section, figure,
table, or publication
(see Section 6.1)
[ALL CAPS] Keys Press [YES/ENTER] to continue.
ALL CAPS Display messages The infuser displays END OF INFUSION.
Bold Emphasis CAUTION: Use proper ESD grounding
techniques when handling components.
WARNING: A WARNING CONTAINS SPECIAL SAFETY EMPHASIS AND MUST
BE OBSERVED AT ALL TIMES. FAILURE TO OBSERVE A WARNING
MAY RESULT IN PATIENT INJURY AND BE LIFE-THREATENING.

1.3 ACRONYMS AND ABBREVIATIONS
Technical Service Manual 1 - 3 430-10786-002
1.3
ACRONYMS AND ABBREVIATIONS
Acronyms and abbreviations used in this manual are as follows.
AAmpere
AC Alternating current
A/D Analog-to-digital
ADC Analog-to-digital converter
CPU Central processing unit
CRC Cyclic redundancy check
DC Direct current
DMM Digital multimeter
ECG Electrocardiogram
EEG Electroencephalogram
EEPROM Electrically erasable programmable read-only memory
EL Electroluminescent
EMC Electromagnetic compatibility
EMG Electromyogram
EMI Electromagnetic interference
ESD Electrostatic discharge
ETO Ethylene oxide
FET Field effect transistor
FPGA Field programmable gate array
hr hour
Hz Hertz
IC Integrated circuit
IO Input/output
IV Intravenous
kHz Kilohertz
LCD Liquid crystal display
LED Light emitting diode
mA Milliampere
mcg Microgram
mg Milligram
MHz Megahertz
mL Milliliter
ms Millisecond
mV Millivolt
PFI Power fail input

SECTION 1 INTRODUCTION
430-10786-002 1 - 4 Hospira GemStar®
PIC Programmable integrated circuit
PWA Printed wiring assembly
PWM Pulse width modulator
RAM Random access memory
ROM Read-only memory
RPM Revolutions per minute
TPN Total parenteral nutrition
UART Universal asynchronous receiver/transmitter
VVolts
VAC Volts alternating current
VCC Collector voltage supply
VDC Volts direct current
VPWR Primary power source
Vrms Volts root mean squared
VTBI Volume to be infused
µAMicroampere
µsMicrosecond
1.4
USER QUALIFICATION
The infuser is intended for use at the direction or under the supervision of licensed
physicians or certified healthcare professionals who are trained in the use of the infuser
and the administration of parenteral fluids or drugs. Training should emphasize
preventing related IV complications, including appropriate precautions to prevent
accidental infusion of air.
1.5
ARTIFACTS
Non-hazardous, low level electrical potentials are commonly observed when fluids are
administered using infusion devices. These potentials are well within accepted safety
standards, but may create artifacts on voltage-sensing equipment such as ECG, EMG,
and EEG machines. These artifacts vary at a rate that is associated with the infusion rate.
If the monitoring machine is not operating correctly or has loose or defective connections
to its sensing electrodes, these artifacts may be accentuated so as to simulate actual
physiological signals. To determine if the abnormality in the monitoring equipment
is caused by the infuser instead of some other source in the environment, set the device
so that it is temporarily not delivering fluid. Disappearance of the abnormality indicates
that it was probably caused by the electronic noise generated by the infuser. Proper setup
and maintenance of the monitoring equipment should eliminate the artifact. Refer to the
appropriate monitoring system documentation for setup and maintenance instructions.

1.6 ELECTROMAGNETIC COMPATIBILITY
Technical Service Manual 1 - 5 430-10786-002
1.6
ELECTROMAGNETIC COMPATIBILITY
The Hospira GemStar is compliant with IEC/EN 60601-1-2 (2001), and has been tested
and found to comply with electromagnetic compatibility (EMC) limits for the Medical Device
Directive 93/42/EEC (EN 55011 Class B and EN 60601-1-2:2001). These limits are
designed to provide reasonable protection against harmful interference in a typical medical
installation (see the system operating manual).
CAUTION: Portable and mobile RF communications equipment, such as cellular
telephones, two-way radios, Bluetooth®devices, and microwave ovens in close
proximity to the infuser may affect or degrade performance of the device. Operation
of the infuser under such conditions should be avoided.
There is a shared responsibility between manufacturers, customers, and users to assure
that medical equipment and systems are designed and operated as intended. Medical
electrical equipment requires special precautions regarding electromagnetic compatibility.
The electromagnetic environment should be managed to permit the infuser to perform as
intended without disturbing other equipment. The infuser should not be used adjacent to
or stacked with other equipment. If the device must be used adjacent to or stacked with
other equipment, monitor the equipment to assure there is no electromagnetic
interference, and verify normal infuser operation.
1.7
INSTRUMENT INSTALLATION
PROCEDURE
CAUTION: Infuser damage may occur unless proper care is exercised during
unpacking and installation.
The instrument installation procedure consists of unpacking, inspection, and self test.
1.7.1
UNPACKING
Inspect the shipping container as detailed in Section 1.7.2. Use care when unpacking the
infuser. Retain the packing slip and save all packing material in the event it is necessary
to return the infuser to the factory. Verify the shipping container contains a copy of the
system operating manual.
1.7.2
INSPECTION
Inspect the shipping container for damage. Should any damage be found, contact the
delivering carrier immediately.
CAUTION: Inspect the infuser for evidence of damage. Do not use the device if it
appears to be damaged. Should damage be found, contact Hospira.
Inspect the infuser periodically for signs of defects. Also inspect the infuser after repair
or during cleaning. Replace any damaged or defective external parts.

SECTION 1 INTRODUCTION
430-10786-002 1 - 6 Hospira GemStar®
1.7.3
SELF TEST
CAUTION: Do not place the infuser in service if the self test fails.
At power-on, the infuser immediately enters an initialization mode and performs
the following self tests:
The initialization mode completes in approximately 30 seconds. During this time the
infuser displays a message that the self tests are being performed. If any test fails,
the infuser alarms.
Note: The device does not infuse during the initialization mode.
After successful completion of the initialization mode, if there is not a current program
in the infuser, the device enters programming mode so the user can enter a new program.
If a program is already in the infuser, the user may choose between the following options:
- Use the current program. The infuser enters stop mode after the program is reviewed.
- Enter a new program. The infuser enters programming mode, then enters stop mode
after the program is reviewed.
Note: If the infuser has been powered off for less than five minutes, a program
review is not required.
1.8
OVERVIEW
The following sections describe therapy options, differences between therapies,
safety features, power sources, and basic operation of the infuser.
See Figure 1-1 for an illustration of the infuser.
-RAMtest
- ROM checksum calculation
- Motor control test
- Stuck key test
- PIC watchdog test
- CONFIG register test
- Battery voltage test
- Power loss completion test
- CRC verifications on all RAM areas
protected by CRCs
- CRC on calibration data stored
in the EEPROM
- Calibration data verification

1.8 OVERVIEW
Technical Service Manual 1 - 7 430-10786-002
1.8.1
THERAPIES
The Hospira GemStar offers the following types of therapy:
The availability of these programs may vary, depending upon the configuration
of the infuser in use.
The infuser is shipped from the factory with one of the configurations described
in Table 1-2. The infuser configuration is easily identified by the end cap color.
- Pain Management
- Total Parenteral Nutrition (TPN)
- Intermittent
-WeightDosed
-Continuous
- mL/hr Only
- Variable Time
Table 1-2. Configuration List Numbers
Therapies
13086
Gray
13087
Blue
13088
Yellow
Pain Management 
TPN 
Intermittent 
Weight Dosed 
Continuous 
mL/hr Only 
Variable Time 

SECTION 1 INTRODUCTION
430-10786-002 1 - 8 Hospira GemStar®
1.8.2
SAFETY FEATURES
Table 1-3 describes the special safety features of the Hospira GemStar.
1.8.3
POWER SOURCES
The infuser can be powered by two internal AA disposable batteries, an external
rechargeable battery pack, AC mains adaptor, or docking station. External supply voltage
must not exceed 3.3 VDC.
Install two fresh, disposable AA batteries for backup power when using an external power
source. The infuser will continue to operate on backup power if the external power
source fails.
CAUTION: To assure proper operation when using internal batteries, always
replace both batteries with fresh, disposable AA batteries when a change is required.
Use of rechargeable batteries in the battery compartment is not recommended.
CAUTION: Always connect to a grounded AC outlet when using the AC adaptor.
Use only an AC adaptor specifically labeled for use with the Hospira GemStar to
charge the battery pack. During charging, if the battery pack becomes hot to the
touch, immediately disconnect from AC power and contact Hospira Technical
Support Operations.
CAUTION: Do not touch exposed connectors on the bottom of the infuser. Exposed
connectors are susceptible to electrostatic discharge (ESD) damage.
Table 1-3. Safety Features
Safety Feature Description
Proximal occlusion detection Strain gauge
Distal occlusion detection Strain gauge
Settings: low, medium, and high sensitivity
Air-in-Line detection Ultrasonic settings: 0.5 mL, 2 mL, and Off
Motor monitoring circuit Redundant and independent monitoring systems
Motor parameter monitoring Motor encoder and camshaft flag monitored
by optical sensor
Self tests Initialization and self test at power-on
Continuous self tests during operation

1.8 OVERVIEW
Technical Service Manual 1 - 9 430-10786-002
1.8.4
OPERATION
The infuser is microprocessor-based and is programmed using a 23-key keypad on
the front of the device (see Figure 1-1). The 16-character-by-4-line backlight display
indicates the status of the infuser.
The infuser has up to seven therapies available, depending on its configuration. Delivery
rates and bolus dosage amounts are programmed in one of three units of measure:
milliliters (mL), milligrams (mg), or micrograms (mcg). A loading dose is programmable for
immediate delivery or delayed delivery. Bolus doses can be programmed to begin delivery
on-demand.
To program the infuser, the operator selects the following:
- Therapy type
- Delivery type: volume delivery (mL) or mass delivery (mg or mcg)
- Concentration (only if mass delivery is selected)
- Delivery rate
- Loading dose, if desired
- Bolus dose, if desired
- Total amount to be delivered: volume to be infused (VTBI)
If mass delivery is selected, the infuser automatically converts mg or mcg to the closest
number of tenths-of-mL. The amount of fluid delivered is shown on the display.
When a bolus is programmed, a minimum lockout time between boluses must also
be programmed. In addition to the lockout time, the operator can also program the
maximum total volume that can be delivered in a selected period.
The infuser contains a time-of-day clock and event history storage capability. The program
settings, significant events that take place while a protocol is running, and the associated
time and date, can be reviewed on the display. The event history can be printed to a
compatible printer or downloaded as an ASCII text file to a computer with the use of the
Hospira GemStar serial printer cable.
For specific instructions regarding infuser operation and optional system components,
refer to the system operating manual.

SECTION 1 INTRODUCTION
430-10786-002 1 - 10 Hospira GemStar®
Figure 1-1. Illustration of the Infuser
FRONT VIEW
PO WER
123
56
89
0
4
7
BAC K- UP
CHANGE
OPTIONS
YES
EN TER
STA RT
STO P
PURG E NO
HELP
ON/OFF
3 VDC BOLUS
TOP CAP
CASSETTE EJECT
BUTTON
BEZEL DISPLAY WINDOW
BEZEL ASSEMBLY
KEYPAD
BOTTOM CAP
BOTTOM VIEW
TOP VIEW
GRIP
BOLUS (BUTTON)
TOP CAP
BOTTOM CAP
CONNECTOR LABEL
AC POWER CONNECTOR
DATAPORT CONNECTOR
BOLUS CONNECTOR
BATTERY DOOR RECESS
BATTERY DOOR
BATTERY PACK CONNECTOR
04K02001
R
Hospira

Technical Service Manual 2 - 1 430-10786-002
Section 2
WARRANTY
Subject to the terms and conditions herein, Hospira, Inc., herein referred to as Hospira,
warrants that the product shall conform to Hospira's standard specifications and be free
from defects in material and workmanship under normal use and service for a period
of one year after purchase. Hospira makes no other warranties, express or implied,
as to merchantability, fitness for a particular purpose, or any other matter.
Purchaser's exclusive remedy shall be, at Hospira's option, the repair or replacement
of the product. In no event shall Hospira's liability arising out of any cause whatsoever
(whether such cause be based in contract, negligence, strict liability, other tort,
or otherwise) exceed the price of such product, and in no event shall Hospira be liable for
incidental, consequential, or special damages or losses or for lost business, revenues,
or profits. Warranty product returned to Hospira must be properly packaged and sent
freight prepaid.
The foregoing warranty shall be void in the event the product has been misused, damaged,
altered, or used other than in accordance with product manuals so as, in Hospira's
judgment, to affect its stability or reliability, or in the event the serial or lot number has
been altered, effaced, or removed.
The foregoing warranty shall also be void in the event any person, including the Purchaser,
performs or attempts to perform any major repair or other service on the product without
having been trained by an authorized representative of Hospira and using Hospira
documentation and approved spare parts. For purposes of the preceding sentence,
“major repair or other service” means any repair or service other than the replacement
of accessory items such as batteries, flow detectors, detachable AC power cords,
and patient pendants.
In providing any parts for repair or service of the product, Hospira shall have no
responsibility or liability for the actions or inactions of the person performing such repair
or service, regardless of whether such person has been trained to perform such repair
or service. It is understood and acknowledged that any person other than a Hospira
representative performing repair or service is not an authorized agent of Hospira.

SECTION 2 WARRANTY
430-10786-002 2 - 2 Hospira GemStar®
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