Respironics 920M PLUS User manual

Operator’s Manual
Handheld Pulse Oximeter
920M
TM PLUS
1
English/Español

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The information in this manual has been carefully checked and is believed to
be accurate. In the interest of ongoing product development, Respironics
reserves the right to make changes and improvements to this manual and the
products it describes at any time, without notice or obligation.
CAUTION: Federal law (USA) restricts this device to sale by or on
the order of a physician.
CAUTION: Read this entire manual carefully before using the 920M
PLUS Pulse Oximeter.
Respironics Georgia, Inc.
175 Chastain Meadows Court
Kennesaw, Georgia 30144
USA
[phone]
[phone] (USA and Canada)
Fax [phone] (USA and Canada)
www.respironics.com
References to “Respironics” in this manual shall imply Respironics, Inc. Respironics and
920M are registered trademarks of Respironics, Inc.
Finger Phantom, Flexi-Form, and FlexiWrap are registered trademarks or trademarks of
Nonin Medical, Inc.
Windows is a registered trademark of Microsoft, Inc.
© 2002 Respironics, Inc.

Guide to Symbols
Front Panel Symbols
Percent Oxygen Saturation
Pulse Rate
Pulse Quality (tricolor LED)
Low Battery
Front Panel Switches
On/Standby
Advance
Other Symbols
ATTENTION: See Instructions for Use
Not for Continuous Monitoring
(No Alarm for SpO2)
Type BF Applied Part
(Patient isolation from electrical shock)
UL Mark for Canada and the United States
with respect to electric shock, fire, and
mechanical hazards only in accordance with
UL 2601-1 and CAN/CSA C22.1 No. 601.1
Serial Number
(located under the battery cover)
C
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A
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CUL
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Table of Contents
Precautions for Use ...................................................1
Indications for Use ................................................... 3
General Description ................................................. 4
Basic Operation ....................................................... 6
Installing and Using the Batteries ............................ 6
Important Notes about Battery Use ........................ 7
Recharging Batteries (NiMH Battery Pack Only) .. 7
Connecting the Sensor ............................................... 8
Power On/Standby .................................................... 9
Power On Self-Test .................................................... 9
Monitoring ................................................................. 10
Cleaning the 920M PLUS Pulse Oximeter ........... 10
Detailed Operation ................................................. 11
Switches and Functions ........................................... 11
Displays and Indicators ........................................... 15
Communications .....................................................17
Serial Output ............................................................. 17
Memory ...................................................................... 17
Specifications .......................................................... 19
Service and Support ............................................... 20
Warranty ..................................................................21
Accessories ............................................................. 22
Troubleshooting Guide .......................................... 24

Precautions for Use 1
Precautions for Use
Contraindications
•Do not use the 920M PLUS in an MRI environment.
•Do not use the 920M PLUS in situations where alarms are required. The
device has no alarms.
Warnings
•Explosion hazard: Do not use the 920M PLUS in an explosive atmosphere.
•The 920M PLUS is intended only as an adjunct in patient assessment. It
must be used in conjunction with other methods of assessing clinical signs
and symptoms.
•Use only Respironics compatible sensors, which are manufactured to meet
the accuracy specifications for Respironics pulse oximeters. Using other
manufacturers’ sensors may cause improper pulse oximeter performance.
•As with all medical equipment, carefully route patient cabling to reduce the
possibility of patient entanglement or strangulation.
•Check the pulse oximeter sensor application site frequently to determine the
positioning of the sensor and the circulation and skin sensitivity of the
patient. Each patient's sensitivity to Respironics sensors may vary
depending on medical status or skin condition.
•Do not use adhesive tape strips if the patient exhibits an allergic reaction.
•Do not stretch the adhesive tape while applying the pulse oximeter sensor.
This may cause inaccurate readings or skin blisters.
•General operation of the 920M PLUS might be affected by the use of an
electrosurgical unit (ESU).
•Do not use a damaged sensor.
Cautions
•Federal law (USA) restricts this device to sale by or on the order of a
physician.
•Before use, carefully read the package insert provided with the sensors.
•The 920M PLUS is intended for spot-checking or monitoring by an
attending healthcare professional. Because the 920M PLUS has no SpO2
alarms, international labeling requirements (EN 865) dictate it be labeled
not for continuous monitoring, as indicated by the symbol.
•The 920M PLUS Pulse Oximeter is not an apnea monitor.
•Verify that all visible indicators illuminate during the startup (initialization)
sequence. If any indicator is not lit, do not use the 920M PLUS. Contact
Respironics Customer Support for repair or replacement.
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2Precautions for Use
•The 920M PLUS Pulse Oximeter must be able to measure the pulse
properly to obtain an accurate SpO2measurement. Verify that nothing is
hindering the pulse measurement before relying on the SpO2measurement.
•Some nail polish colors (particularly dark shades) or artificial nails may
reduce light transmission and affect SpO2accuracy. Remove any nail polish
or artificial nails before using the 920M PLUS.
•The 920M PLUS may not work on all patients. If you are unable to achieve
stable readings, discontinue use.
•The 920M PLUS may misinterpret motion as good pulse quality. Minimize
patient motion as much as possible.
•The 920M PLUS Pulse Oximeter is designed to determine the percentage
of arterial oxygen saturation of functional hemoglobin. Significant levels of
dysfunctional hemoglobin may affect the accuracy of the measurement.
•Cardiogreen and other intravascular dyes, depending on the concentration,
may affect the accuracy of the SpO2measurement.
•Ear Clip sensors are not recommended for pediatric or neonatal use; their
accuracy of these sensors has not been established.
•Do not immerse the 920M PLUS or Respironics sensors in liquid.
•Do not use caustic or abrasive cleaning agents on the device or sensors.
•The 920M PLUS Pulse Oximeter is a precision electronic instrument and
must be repaired by trained Respironics-designated personnel only.
•Do not use different types of batteries at the same time, and do not mix
fully charged and partially charged batteries at the same time.
•Do not remove any covers (except the battery cover) when replacing
batteries. There are no user-serviceable parts inside other than the
replaceable batteries.
•Follow local ordinances and recycling instructions regarding disposal or
recycling of the device and device components, including batteries.
•Batteries may leak or explode if used or disposed of improperly.
•Remove the batteries to avoid the risk of leakage if the 920M PLUS is going
to be stored for more than one month.
•This equipment complies with International Standard EN 60601-1-2:1993
for electromagnetic compatibility for medical electrical equipment and/or
systems. This standard is designed to provide reasonable protection against
harmful interference in a typical medical installation. However, because of
the proliferation of radio-frequency transmitting equipment and other
sources of electrical noise in healthcare and other environments (for
example cellular phones, mobile two-way radios, electrical appliances), it is
possible that high levels of such interference due to close proximity or
strength of a source may result in disruption of performance of this device.
Cautions
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Indications for Use 3
Indications for Use
The Respironics®920M™ PLUS Handheld Pulse Oximeter is indicated for
measuring and displaying functional oxygen saturation of arterial hemoglobin
(SpO2) and pulse rate for adult, pediatric, and neonatal patients in hospital,
ambulatory, home, and EMS (emergency medical service) environments. The
920M PLUS is intended for spot-checking and/or continuous monitoring
when attended by a trained healthcare professional.
Figure 1. The Model 920M PLUS Pulse Oximeter.
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920M PLUS
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4General Description
General Description
The 920M PLUS is a digital handheld pulse oximeter that displays numerical
values for blood oxygen saturation and pulse rate (Figure 2).
The 920M PLUS operates for approximately 100 hours continuously
between alkaline battery replacements, or for 45 hours with the Rechargeable
NiMH (Nickel Metal Hydride) Battery Pack (optional). The 920M PLUS
requires no routine calibration or maintenance other than replacement of
alkaline batteries or recharging the optional battery pack using the Model
920MPC Charger Stand. (Refer to the Model 920MPC Operator’s Manual.)
Figure 2. 920M PLUS displays, indicators, and switches.
Oxygen saturation and pulse rate values are displayed by light-emitting diode
(LED) digital displays. On each detected pulse, the pulse quality LED blinks.
Patient pulse quality signals are graded as good, marginal, or inadequate and
are indicated as such by the pulse quality indicator blinking green, yellow, or
red, respectively. This simple method gives the user a pulse-by-pulse visual
indication of waveform signal quality without requiring the user to perform
complex waveform analysis.
The 920M PLUS features pulse oximeter sensors for a wide range of patient
monitoring. Each sensor is designed for a specific site application and specific
patient size and weight range. Refer to specific sensor instructional inserts for
more detailed information about sensor use.
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920M PLUS
SpO2Display
(Percent
Oxygen
Saturation)
On / Standy
Switch
Pulse Quality
Indicator
(Tricolor)
Pulse Rate
Display
Pulse Oximeter
Sensor Connector
Advance
Switch
Low Battery
Indicator
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