2 Overview
The pulse oxygen saturation is the percentage of HbO
2
in the total Hb in the blood, so-called the O
2
concentration in the blood. It is an important bio-parameter for the respiration. A number of diseases
relating to respiratory system may cause the decrease of SpO
2
in the blood, furthermore, some other
causes such as the malfunction of human body's self-adjustment, damages during surgery, and the
injuries caused by some medical checkup would also lead to the difficulty of oxygen supply in
human body, and the corresponding symptoms would appear as a consequence, such as vertigo,
impotence, vomit etc. Serious symptoms might bring danger to human's life. Therefore, prompt
information of patients' SpO
2
is of great help for the doctor to discover the potential danger, and is of
great importance in the clinical medical field.
The Pulse Oximeter features in small volume, low power consumption, convenient operation and
being portable. It is only necessary for patients to put one of his fingers into a probe for diagnosis,
and a display screen will directly show the measured value of pulse oxygen saturation with the high
veracity and repetition.
2.1 Features
A. Operation of the product is simple and convenient.
B. The product is small in volume, light in weight and convenient in carrying.
C. Low power consumption
2.2 Major applications and scope of application
The Pulse Oximeter can be used in measuring the pulse oxygen saturation and pulse rate through
finger. The product is suitable for being used in family, hospital, oxygen bar, community healthcare,
physical care in sports (It can be used before or after doing sports, and it is not recommended to use
the device during the process of having sport) and etc.
The problem of overrating would emerge when the patient is suffering from toxicities
which caused by carbon monoxide, the device is not recommended to be used under this
circumstance.
2.3 Environment requirements
Storage Environment
a) Temperature :-40℃~+60℃
b) Relative humidity :5%~95%
c) Atmospheric pressure :500hPa~1060hPa
Operating Environment
a) Temperature:10℃~40℃
b) Relative Humidity :30%~75%
c) Atmospheric pressure:700hPa~1060hPa
3 Principle
Principle of the Oximeter is as follows: An experience formula of data process is established taking
use of Lambert Beer Law according to Spectrum Absorption Characteristics of Reductive
CMS-50D Plus
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