INSTRUCTION MANUAL
Fingertip Pulse Oximeter model MD300C23
GENERAL DESCRIPTION
Oxygen Saturation is a percentage of Oxyhemoglobin (HbO2) capacity, compounded with oxygen, by all combinative
hemoglobin (Hb) capacity in blood. In other words, it is consistency of Oxyhemoglobin in blood. It is a very important
parameter for the Respiratory circulation System.
Many respiratory diseases can result in oxygen saturation being lowered in human blood. Additionally, the following
factors can reduce oxygen saturation: Automatic regulation of organ dysfunction caused by Anesthesia, Intensive Posto-
perative Trauma, injuries caused by some medical examinations.
That situation might result in light-headedness, asthenia, and vomiting. Therefore, it is very important to know the oxy-
gen saturation of a patient so that doctors can fi nd problems in a timely manner.
The fi ngertip pulse Oximeter features small size, low power consumption, convenient operation and portability.
It is only necessary for a patient to put one of his fi ngers into the fi ngertip photoelectric sensor for diagnosis, and
a display screen will show oxygen saturation.
PARTS LIST
Complete set (fi g. 1):
Main Unit – 1 pcs.,
Instruction Manual with Warranty Card – 1 pcs.,
Hang Lace – 1 pcs.,
batteries – 2 pcs.
MEASUREMENT PRINCIPLE
Principle of the Oximeter is as follows: A mathematical formula is established making use of Lambert Beer Law
according to Spectrum Absorption Characteristics of Reductive hemoglobin (RHb) and Oxyhemoglobin (HbO2) in
glow and near-infrared zones.
Operation principle of the instrument is Photoelectric Oxyhemoglobin Inspection Technology is adopted in accor-
dance with Capacity Pulse Scanning and Recording Technology, so that two beams of diff erent wavelength of lights
(660nm glow and 940nm near infrared light) can be focused onto a human nail tip through a clamping fi nger-type
sensor.
A measured signal obtained by a photosensitive element, will be shown on OLED
display through process in electronic circuits and microprocessor.
Diagram of Operation Principle
1. 1.Red and Infrared-ray Receipt Tube.
2. 1.Red and Infrared-ray Emission Tube. (fi g.2)
INTENDED USE
The Fingertip Pulse Oximeter is a handheld non-invasive device intended for spot-checking of oxygen saturation
of arterial hemoglobin (SpO2) and Pulse Rate of adult, adolescent and child patients in hospitals, hospital-type
facilities and homecare.
PRECAUTIONS FOR USE
1. Before use, carefully read the manual.
2. Operation of the pulse oximeter may be aff ected by the use of an electrosurgical unit (ESU).
3. The pulse oximeter 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.
4. Do not use the pulse oximeter in an MRI or CT environment.
5. Do not use the pulse oximeter in situations where alarms are required. The device has no alarms. It is not for
continuous monitoring.
6. Do not use the pulse oximeter in an explosive atmosphere.
7. The pulse oximeter is intended only as an adjunct in patient assessment. It must be used in conjunction with
other methods of assessing clinical signs and symptoms.
8. In order to ensure correct sensor alignment and skin integrity, the maximum application time at a single site for
our device should be less than half an hour.
9. Do not sterilize the device using autoclaving, ethylene oxide sterilizing, or immersing the device in liquid. The
device is not intended for sterilization.
10. Follow local ordinances and recycling instructions regarding disposal or recycling of the device and device com-
ponents, including batteries.
11. This equipment complies with IEC 60601-1-2:2014 for electromagnetic compatibility for medical electrical equ-
ipment and/or systems. 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.
12. Portable and mobile RF communications equipment can aff ect medical electrical equipment. The portable and
mobile RF communications equipment should be used no closer than 30cm (12 inches) to any part of the device,
including cables specifi ed by the manufacturer. Otherwise, degradation of the performance of this equipment
could result.
13. This equipment is not intended for use during patient transport outside the healthcare facility.
14. The patient is an intended operator. All functions of the device can be safely used.
15. It may be unsafe to:
– use accessories, detachable parts and materials not described in the instructions for use
– interconnect this equipment with other equipment not described in the instructions for use
– disassemble, repair or modify the equipment
16. The material that contact with the patient’s skin has passed the ISO10993-5 Tests for invitro cytotoxicity and
ISO10993-10 Tests for irritation and delayed-type hypersensitivity.
17. Use of this equipment adjacent to or stacked with other equipment should be avoided because it could result
in improper operation. If such use is necessary, this equipment and the other equipment should be observed to
verify that they are operating normally.
18. The use of accessories, transducers and cables other than those specifi ed or provided by the manufacturer of
this equipment could result in increased electromagnetic emissions or decreased electromagnetic immunity of
this equipment and result in improper operation.
19. When the signal is not stable, the reading may be inaccurate. Please do not refer to the measurement.
20. The material of the device has no nature latex.
21. The pulse oximeter equipment is calibrated to display functional oxygen saturation.
22. The waveform we provide is normalized.
Rx only: „Caution: Federal law (USA) restricts this device to sale by or on the order of a licensed practitioner.”
BATTERY INSTALLATION
1. Shift the bottom panel and then open it (fi g.3a).
2. Put the two AAA batteries into battery cassette
in correct polarities (fi g. 3b).
3. Close the bottom panel (fi g. 3c).
WARNING!
Replace batteries when low power indncator “
” is lit or if after pressing Power button there is no indica-
tion on display.
Please remove the battery if the Oximeter will not be used for a long time.
Do not use re-chargable batteries.
HOW TO USE
WARNING!
Do not tremble the hand with oximeter during measuremrnt
1. Open the clamp (fi g. 4)
2. Plug one of fi ngers into rubber hole of the oximeter (it is best to plug the fi nger
thoroughly) before releasing the clamp.
3. Press the button once on front panel.
DISPLAY MODES.
After turning on the oximeter, each time you press the power switch, the oximeter will switch to another display mode,
there are 6 display modes shown as follows:
1
SpO
2%
PR
bpm
95
84
2
SpO
2%
PR
bpm
97
74
3
SpO
2%
PR
bpm
98
77
4
SpO
2%
PR
bpm
98
77
5
SpO
2%
PR
bpm
97
77
6
SpO
2%
PR
bpm
97
74
4. Read correspondent data from display screen:
SpO
2%
PR
bpm
97
74
Low power indicator
Pulse Wave
SpO
2%
PR
bpm
95
84
PR signal
intensity Bar
graph
PR
SpO
2
BRIGHTNESS ADJUSTMENT
When you press the power switch for a long time (more than one second), the brightness of the oximeter will
be changed by degrees, there are 10 levels on brightness; the default level is level four.
HANG LACE INSTALLATION
1. Thread thinner end of the hang lace through the hanging hole (fi g. 5).
2. Thread thicker and of the lace through the threaded end before pulling it tightly.
MAINTENANCE AND STORAGE
Replace the batteries timely when indncator “
” is lit.
Clean surface of the fi ngertip oximeter before it is used in diagnosis for patients
Remove the batteries inside the battery cassette if the Oximeter will not be operated for a long time.
It is best to preserve the product in a place where ambient temperatures -20-55r and humidity is <93%.
It is recommended that the product should be kept in a dry environment anytime. A wet ambient might aff ect its
lifetime and even might damage the product.
Please follow the law of the local govern ment to deal with used battery.
SPECIFICATION
Model
MD300C23
Display
OLED display
SpO
2
measurement
range
accuracy
70% - 100%
±2%
Pulse Rate
measurement
range
accuracy
30 - 250 bpm
30 - 99 bpm - ±2 bpm;
100 - 250 bpm - ±2%
Measurement wavelengths
red
infrared
660 nm
905 nm
Power source
2 x 1,5V AAA (LR03)
Battery set operating period
> 30 hrs.
Max. power consumption
0.075 W
Applicable fi nger circumference
20-75 mm
Fig. 5
Fig. 4
Fig. 2
1
2
Fig. 1
Fig. 3a
Fig. 3b
Fig. 3c
ENG
