Instructions for Use
Instructions for Use
Onyx® II Model 9550 Finger Pulse Oximeter
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Indications for Use
The NONIN® Onyx® II Model 9550 Finger Pulse Oximeter is a small, lightweight, portable device indicated for use in
measuring and displaying functional oxygen saturation of arterial hemoglobin (%SpO2) and pulse rate of patients who are well
or poorly perfused. It is intended for spot-checking of adult and pediatric patients on fingers (other than the thumb) between
0.3 - 1.0 inch (0.8 – 2.5 cm) thick.
Caution: Federal law (USA) restricts this device to sale by or on the order of a licensed practitioner.
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Contraindications
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Do not use the device in an MRI environment, in an explosive atmosphere, or on infant or neonatal patients.
This device is not defibrillation proof per IEC 60601-1:1990 clause 17h.
Warnings
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This device is intended only as an adjunct in patient assessment. It must be used in conjunction with other methods of
assessing clinical signs and symptoms.
The device must be able to measure the pulse properly to obtain an accurate SpO2 measurement. Verify that nothing is
hindering the pulse measurement before relying on the SpO2 measurement.
Operation of this device below the minimum amplitude of 0.3% modulation may cause inaccurate results.
General operation of the device may be affected by the use of an electrosurgical unit (ESU).
The use of accessories other than those specified in these instructions may result in increased electromagnetic emission
and/or decreased immunity of this device.
This device should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the
device should be observed carefully to verify normal operation.
Cautions
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This device is designed to determine the percentage of arterial oxygen saturation of functional hemoglobin. Significant
levels of dysfunctional hemoglobin may affect measurement accuracy.
This device has no audible alarms and is intended only for spot-checking.
Inspect the sensor application site at least every 6 to 8 hours to ensure correct sensor alignment and skin integrity. Patient
sensitivity to sensors may vary due to medical status or skin condition.
Fluctuating or very bright light, moisture, blood pressure cuffs, infusion lines, venous pulsations, insufficient pulse signals,
anemia, arterial catheters, nail polish, and/or artificial nails may degrade the device’s performance.
The device may not work when circulation is reduced. Warm or rub the finger, or re-position the device.
This device’s display will go blank after 30 seconds of no readings or poor readings.
In some circumstances, the device may interpret motion as good pulse quality. Minimize patient motion as much as
possible.
Cardiogreen and other intravascular dyes may affect the accuracy of the SpO2 measurement.
Do not autoclave or immerse this device in liquid or use caustic or abrasive cleaning agents.
A flexible circuit connects the two halves. Do not twist or pull the flexible circuit or overextend the device’s spring.
Do not hang the lanyard from the device’s flexible circuit/strain relief.
A functional tester cannot be used to assess the accuracy of a pulse oximeter monitor or sensor.
This equipment complies with IEC 60601-1-2:2001 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, it is possible that high levels of such interference due to close
proximity or strength of a source might disrupt the performance of this device. Medical electrical equipment needs special
precautions regarding EMC, and all equipment must be installed and put into service according to the EMC information
specified in this manual.
Portable and mobile RF communications equipment can affect medical electrical equipment.
Batteries may leak or explode if used or disposed of improperly. Remove batteries if the device will be stored for more
than 30 days. Do not use different types of batteries at the same time. Do not mix fully charged and partially charged
batteries at the same time. These actions may cause the batteries to leak.
Follow local, state and national governing ordinances and recycling instructions regarding disposal or recycling of the
device and device components, including batteries.
In compliance with the European Directive on Waste Electrical and Electronic Equipment (WEEE) 2002/96/EC, do not
dispose of this product as unsorted municipal waste. This device contains WEEE materials; please contact your distributor
regarding take-back or recycling of the device. If you are unsure how to reach your distributor, please call NONIN® for
your distributor’s contact information.
Symbols
Symbol
Definition of Symbol
Consult Instructions for Use
Caution!
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0123
CE Marking indicating conformance to EC Directive No. 93/42/EEC concerning medical devices
Type BF Applied Part (patient isolation from electrical shock)
Not for Continuous Monitoring (no alarm for SpO2)
SN
Serial Number
Battery Orientation
C
SSIFIE
LA
UL
D
C
11
US
UL Mark for Canada and the United States with respect to electric shock, fire, and mechanical
hazards only in accordance with UL 60601-1 and CAN/CSA C22.2 No. 601.1.
Lot Number
Non-ionizing electromagnetic radiation. Equipment includes RF transmitters. Interference may
occur in the vicinity of equipment marked with this symbol.
Indicates separate collection for electrical and electronic equipment (WEEE).
EC
REP
IPX2
Authorized Representative in the European Community
Protected against vertically falling water drops when enclosure is tilted up to 15 degrees, per
IEC 60529.
Installing Batteries
Two 1.5 volt AAA-size batteries power the Onyx® II for about 2,500 spot checks or 21 hours of operation. NONIN®
recommends using alkaline batteries (included with each new Onyx II). When batteries are low, the numeric displays flash
once per second. Remove batteries if the device will be stored for more than 30 days. Replace low batteries as soon as
possible, using the instructions below.
Note: Rechargeable batteries may be used; however, they require more frequent replacement.
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1. Hold the Onyx® II as shown at left, pressing upward and then pulling outward slightly with the thumb to release the
device’s battery tray.
2. Remove the battery tray and the old batteries, disposing of the batteries properly.
3. Insert two new 1.5 volt AAA-size batteries. Follow the polarity markings (+ and -) as illustrated. Proper positioning of the
batteries is essential for operation.
4. Carefully guide the battery tray back onto the Onyx® II, pressing downward and pushing inward slightly to re-secure the
battery tray. Do not force it into place; it fits only when properly positioned.
5. Insert your finger into the device to verify operation.
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Perfusion Indicator
Activating the Onyx® II and Verifying Operation
The Onyx® II contains numeric LEDs that display oxygen saturation and pulse rate. A tricolor LED display provides a visual
indication of the pulse signal quality, while blinking at the corresponding pulse rate. This display changes colors to alert you
to changes in pulse quality that may affect the readings: green indicates a good pulse signal, yellow indicates a marginal pulse
signal, and red indicates an inadequate pulse signal.
Activate the Onyx® II by inserting the patient’s finger into the unit. The Onyx® II detects the inserted finger and automatically
illuminates the displays. Correct positioning of the light emitter and photodetector on the finger is critical for accurate
measurements. All emitted light must pass through the fingertip.
While on the finger, do not press the Onyx® II against any surface and do not squeeze or hold it together. The internal spring
provides the correct pressure; additional pressure may cause inaccurate readings.
1. Insert the patient’s finger, nail side up, into the Onyx® II until the fingertip touches the built-in stop guide.
2. Make sure the finger is lying flat (not on its side) and is centered within the device. For best results, keep the Onyx® II at
the patient’s heart or chest level.
3. If the device does not turn on, remove the finger and wait a few seconds before reinserting it.
When a finger is inserted, the Onyx® II performs a brief startup sequence. Verify that all LEDs illuminate during the startup
sequence. If any LED is not lit, do not use the Onyx® II; contact NONIN® Customer Support for repair or replacement. After
the startup sequence, the Onyx® II begins sensing the pulse (indicated by the blinking pulse quality display). Allow the device
to stabilize, observing about 4 seconds of continuous green-colored pulse quality before relying on the displayed values. It is
common for the displayed values to fluctuate slightly over a period of several seconds. If the pulse quality display blinks yellow
or red, try another finger.
A minus sign (-) appears in the left-most digit of the %SpO2 display when the Onyx® II senses that the finger has been
removed. The last measured SpO2 and pulse rate values freeze for 10 seconds, and then “OFF” will appear in the display
while the device turns off. The device will automatically shut off (to conserve battery life) approximately 10 seconds after the
finger is removed, or after a 2-minute period of inadequate pulse signals.
Using the Lanyard and Carrying Case
A lanyard and carrying case are provided for convenience. The Onyx® II will function with or without the lanyard.
• If lanyard use is desired, thread the lanyard as shown below.
Onyx® II Care, Maintenance, and Cleaning
The advanced digital circuitry within the Onyx® II requires no calibration or periodic maintenance other than battery
replacement. Field repair of the Onyx® II circuitry is not possible. Do not attempt to open the Onyx® II case or repair the
electronics. Opening the case will damage the Onyx® II and void the warranty. Do not open the Onyx® II more than 90°, and
do not twist or pull on the device when cleaning.
Cleaning the Inner Surfaces of the Onyx® II
1. Wipe the surfaces with a soft cloth dampened with a mild detergent or isopropyl alcohol solution. If low-level disinfection
is required, a cloth dampened with 10% bleach / 90% water solution may also be used. Do not use undiluted bleach or
any cleaning solution other than those recommended here, as permanent damage could result.
2. Dry with a soft cloth, or allow to air dry.
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Caution
Do not use caustic or abrasive cleaning agents.
3. Ensure that all surfaces are completely dry.
Testing Summary
SpO2 accuracy and low perfusion testing was conducted by NONIN® Medical, Incorporated as described below.
SpO2 Accuracy Testing
SpO2 accuracy testing is conducted during induced hypoxia studies on healthy, non-smoking, light-to-dark-skinned subjects in an independent research
laboratory. The measured arterial hemoglobin saturation value (SpO2) of the sensors is compared to arterial hemoglobin oxygen (SaO2) value,
determined from blood samples with a laboratory co-oximeter. The accuracy of the sensors is in comparison to the co-oximeter samples measured over
the SpO2 range of 70-100%. Accuracy data is calculated using the root-mean-squared (Arms value) for all subjects, per ISO 9919:2005, Standard
Specification for Pulse Oximeters for Accuracy.
Low Perfusion Testing
This test uses an SpO2 Simulator to provide a simulated pulse rate, with adjustable amplitude settings of various SpO2 levels. The module must maintain
accuracy in accordance with ISO 9919:2005 for pulse rate and SpO2 at the lowest obtainable pulse amplitude (0.3% modulation).
Specifications
Oxygen Saturation Display Range:
0% to 100% SpO2
Pulse Rate Display Range:
18 to 321 beats per minute (bpm)
Oxygen Saturation Declared Accuracy Range: (Arms*):
70% to 100% SpO2 ±2 digits
Low Perfusion Oxygen Saturation Declared Accuracy Range
(Arms*):
70-100% SpO2 ±2 digits
Pulse Rate Declared Accuracy Range (Arms*):
20-250 BPM ±3 digits
Low Perfusion Pulse Rate Declared Accuracy Range (Arms*):
40-240 ±3 digits
Measurement Wavelengths and Output Power**:
Red:
Infrared:
660 nanometers @ 0.8 mw maximum average
910 nanometers @ 1.2 mw maximum average
Temperature (Operating):
+32° to +104°F / 0° to +40°C
Temperature (Storage/Transportation):
Humidity (Operating):
Humidity (Storage/Transportation):
Altitude (Operating):
(Hyperbaric Pressure):
Battery Life (Continuous):
Battery Life (Storage):
Classifications per IEC 60601-1 / CSA 601.1/ UL 60601-1:
Degree of Protection:
-22° to +122°F / -30° to +50°C
10% to 90% non-condensing
10% to 95% non-condensing
Up to 40,000 feet / 12,192 meters
Up to 4 atmospheres
Approximately 2,500 spot checks based on ~21 hours of operation using two
AAA-size alkaline batteries, calculated at 30 seconds per spot check.
4 years, minimum
Type BF-Applied Part
Enclosure Degree of Ingress Protection:
IPX2
Mode of Operation:
Continuous
This product complies with ISO 10993-1.
*± 1 Arms represents approximately 68% of measurements.
**This information is especially useful for clinicians performing photodynamic therapy.
Warranty
NONIN® MEDICAL, INCORPORATED, (NONIN®) warrants to the purchaser, for a period of two years from the date of purchase, each Onyx® exclusive
of the batteries, spring, carrying case, lanyard, and lanyard lock. NONIN® shall repair or replace any Onyx® found to be defective in accordance with this
warranty, free of charge, for which NONIN® has been notified by the purchaser by serial number that there is a defect, provided notification occurs within
the applicable warranty period. This warranty shall be the sole and exclusive remedy by the purchaser hereunder for any Onyx® delivered to the purchaser
which is found to be defective in any manner whether such remedies be in contract, tort or by law. This warranty excludes cost of delivery to and from
NONIN®. All repaired units shall be received by the purchaser at NONIN®’s place of business. NONIN® reserves the right to charge a fee for a warranty
repair request on any Onyx® found to be within specifications. Onyx® is a precision electronic instrument and must be repaired by trained NONIN®
personnel only. Any sign or evidence of opening the Onyx®, field service by non-NONIN® personnel, tampering, or any kind of misuse of the Onyx®, shall
void the warranty. All non-warranty work shall be done at NONIN®’s standard rates and charges in effect at the time of delivery to NONIN®.
Manufacturer’s Declaration
Refer to the following tables for specific information regarding this device’s compliance to IEC 60601-1-2.
Table 1: Electromagnetic Emissions
Emissions Test
Compliance
Electromagnetic Environment—Guidance
This device is intended for use in the electromagnetic environment specified below.
The customer and/or user of this device should ensure that it is used in such an environment.
RF Emissions
CISPR 11
Group 1
This device uses RF energy only for its internal function. Therefore, its RF emissions are
very low and are not likely to cause any interference in nearby electronic equipment.
RF Emissions
CISPR 11
Class B
Harmonic Emissions
IEC 61000-3-3
N/A
This device is suitable for use in all establishments, including domestic and those directly
connected to the public low-voltage power supply network that supplies buildings used for
domestic purposes.
Voltage Fluctuations/Flicker Emissions
IEC 61000-3-3
N/A
Table 2: Electromagnetic Immunity
Immunity Test
IEC 60601 Test Level
Compliance
Level
Electromagnetic
Environment—Guidance
This device is intended for use in the electromagnetic environment specified below.
The customer and/or user of this device should ensure that it is used in such an environment.
Electrostatic Discharge (ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, concrete, or ceramic tile. If
floors are covered with synthetic material, relative
humidity should be at least 30%.
Electrical Fast Transient/Burst
IEC 61000-4-4
±2 kV for power supply lines
±1 kV for input/output lines
N/A
Mains power quality should be that of a typical
commercial or hospital environment.
Surge
IEC 61000-4-5
±1 kV differential mode
±2 kV common mode
N/A
Mains power quality should be that of a typical
commercial or hospital environment.
Voltage dips, short interruptions,
and voltage variations on power
supply input lines
IEC 61000-4-11
±5% UT (>95% dip in UT) for 0.5 cycle
±40% UT (60% dip in UT) for 5 cycles
±70% UT (30% dip in UT) for 25 cycles
<5% UT (>95% dip in UT) for 5 sec.
N/A
Mains power quality should be that of a typical
commercial or hospital environment.
Power Frequency
(50/60 Hz) Magnetic Field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical
commercial or hospital environment.
NOTE: UT is the AC mains voltage before application of the test level.
Table 3: Guidance and Manufacturer’s Declaration—Electromagnetic Immunity
Immunity Test
IEC 60601 Test Level Compliance
Level
Electromagnetic Environment—Guidance
This device is intended for use in the electromagnetic environment specified below.
The customer and/or user of this device should ensure that it is used in such an environment.
Portable and mobile RF communications equipment should be used no closer to any part of the device, including cables, than the recommended
separation distance calculated from the equation applicable to the frequency of the transmitter.
Recommended Separation Distance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
N/A
d = 1.17 P
[3] V/m
d = 1.17 P
80 MHz to 800 MHz
800 MHz to 2.5 GHz
d = 3.50 P
[2] V/m
where P is the maximum output power rating of the transmitter in watts (W) according to
the transmitter manufacturer and d is the recommended separation distance in meters
(m).
Field strengths from fixed RF transmitters, as determined by an electromagnetic site
surveya, should be less than the compliance level in each frequency range.b
Interference may occur in the vicinity of equipment marked with the following symbol:
a. Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur
radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in
which the device is used exceeds the applicable RF compliance level above, the device should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the device.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [3] V/m.
NOTES:
• At 80 MHz and 800 MHz, the higher frequency range applies.
• These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and
people.
Table 4: Recommended Separation Distances
The following table details the recommended separation distances between portable and mobile RF communications equipment and this device.
This device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. Users of this device can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communication equipment (transmitters)
and the device as recommended below, according to maximum output power of the communications equipment.
Separation Distance According to Frequency of Transmitter
Rated Maximum Output Power of Transmitter
W
150 kHz to 80 MHz
d = 1.17 P
80 MHz to 800 MHz
800 MHz to 2.5 GHz
d = 1.17 P
d = 3.50 P
0.01
0.12
0.12
0.35
0.1
0.37
0.37
1.11
1
1.2
1.2
3.5
10
3.7
3.7
11.1
100
12
12
35
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using
the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to
the transmitter manufacturer.
NOTES:
• At 80 MHz and 800 MHz, the higher frequency range applies.
• These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and
people.
NONIN® Medical, Inc.
13700 1st Avenue North
Plymouth, MN 55441-5443 USA
+1 (763) 553-9968
800-356-8874 (US and Canada)
Fax +1 (763) 553-7807
E-mail: mail@nonin.com
www.nonin.com
EC
REP
Authorized EC Representative:
MPS, Medical Product Service
GmbH
Borngasse 20
D-35619 Braunfels, Germany
©2008
5104-001-04
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