User Manual
Ver 2.2
revision date
：
06-2022
Product name
：
Fingertip Pulse Oximeter
K1
This Fingertip Pulse Oximeter is a kind of innovated medical device with non-invasive
features for artery SPO2 and PR detection. Being portable, it is able to measure SPO2 and PR
values quickly and precisely.
General Description
Haemoglobin Saturation is the percentage between the capacity of Oxyhemoglobin (HbO2)
that compounded with oxygen and that of all combinativable haemoglobin (Hb) in blood. In
other words, it is the saturation of Oxyhemoglobin in blood. It is a very important physiological
parameter for Respiratory and Circulation Systems. Many respiratory diseases could reduce
haemoglobin saturation in human blood. Moreover, factors such as Automatic Organic
Regulation Malfunction caused by anaesthesia, trauma resulted from major operation and
some medical examination can also cause problems in oxygen supply, which might reduce
human haemoglobin saturation. As a result, such symptoms as megrim, vomiting and asthenia
might appear to patients. Hence, it is very important to know hemoglobin saturation of patient
timely in clinical medical aspects.
The Fingertip pulse oximeter features in small volume, low power consumption, convenient
operation and
portability. It is only necessary for patient to put one finger into fingertip
photoelectric sensor for diagnosis, and the display screen will directly show measured value of
hemoglobin saturation. It has been proved in clinical experiments that it possesses rather high
precision and repeatability.
Measurement principle
The principle of the oximeter is as follows: An experience formula of data process is
established by exerting Lambert Beer Law according to Spectrum Absorption Characteristics
of Reductive hemoglobin and oxyhemoglobin ( HbO2) in glow and near-infrared zones.
Operation principle of the instrument is to combine Photoelectric Oxyhemoglobin Inspection
Technology with Capacity Pulse Scanning and Recording Technology, so that two lights with
different wavelength (660nm glow and 905nm near infrared light) can be focused onto human
nail through perspective clamp finger-type sensor. Then measured signal can be obtained by a
photosensitive element, information acquired through which will be shown on two groups of
LEDs through process in electronic circuits and microprocessor.
Diagram of Operation Principle
1. Infrared-ray receiving tube
2. Infrared-ray transmitting tube
Precautions for use
1.
Do not use the pulse oximeter together with MRI or CT equipment.
2.
Explosion hazard: Do not use the pulse oximeter in an explosive atmosphere.
3.
The pulse oximeter is intended only as an adjunct in patient assessment. Doctors should
make diagnosis in conjunction with clinical manifestation and symptoms.
4.
Check the pulse oximeter sensor application site frequently to make sure that the
circulation and skin integrality of patient are under good condition.
5.
Do not stretch the adhesive tape while applying the pulse oximeter sensor. This may
cause inaccurate reading or skin blisters.
6.
Please read the manual carefully before your operation.
7.
The pulse oximeter has no SpO2 alarm, it is not for continuous monitoring.
8.
Prolonged use or the patient’s condition may require changing the sensor site periodically.
Change sensor site and check skin integrality, circulatory status, and correct alignment at
least every 2 hours.
9.
Inaccurate measurements may be caused by autoclaving, ethylene oxide sterilizing, or
immersing the sensors in liquid.
10. Significant levels of dysfunctional hemoglobins (such as carboxyl- hemoglobin or
methemoglobin) may cause inaccurate reading.
11. Intravascular dyes such as indocyanine green or methylene blue may cause inaccurate
reading.
12. SpO2 measurements may be adversely affected in the presence of high ambient light.
Please shield the sensor area (with a surgical towel or direct sunlight, for example) if it is
necessary.
13. Unexpected action may cause inaccurate reading.
14. Medical signal with high frequency or interference caused by defibrillator may lead to
inaccurate reading.
15. Venous pulsations may cause inaccurate reading.
16. It may cause inaccurate reading when the positions of sensor and blood pressure cuff are
on the same arterial catheter or intravascular line.
17. Hypotension, severe vasoconstriction, severe anemia, or hypothermia may cause
inaccurate reading.
18. It may cause inaccurate reading by giving use of cardiotonic to patient after his cardiac
arrest or when he is in quiver.
19. Bright nail or painted nail may cause inaccurate SpO2 reading.
Follow local ordinances and recycling instructions regarding to disposal or recycling of the
device and device components.
Scope of application / Intended use
The fingertip pulse oximeter can be used to measure human haemoglobin saturation and heart
rate through finger , it can be used in hospitals, families, schools and medical centers.
contraindication
：
not found
note
：
1.The image in the instruction may have slight differences with the actual
instruments
。
2.Technical parameters and appearance change, without prior notice
。
Product include
：
main machine and SPO2 sensor
。
Features
OLED display
Product adopts double color OLED display
，
can show the six different display
mode
Low-power consumption, continuously work for more than six hours with one
rechargeable lithium battery
Battery power indicator
In the absence of signals, the product will be in after 8 seconds to power-off
automatically
Small in volume, light in weight, and convenient to carry
Operation Instructions
1. Plug one finger into rubber hole of the Oximeter (it is best to plug the finger thoroughly)
before releasing the clamp with the nail upwards.
2. Press button on the front panel;
3. Don’t tremble your finger when the Oximeter is working. Your body is not recommended on
moving status.
4. Press the button on the front panel, if we want change display direction;
5 .Read relevant datum from display screen.
6. Please charge batteries in time when OLED indicates the batteries are in low power.
When plugging your finger into the Oximeter, your nail surface must be upward.
Declaration: Please use the medical alcohol to clean the rubber before each test and clean the
tested finger with alcohol before and after the test. (The rubber inside of the Oximeter adopts
medical rubber, which has no toxin, no harm, and brings no side effect such as allergy to the
our skin ).
Hang rope installation
1, Put the rope thin end through the hole.