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Measuring method of blood oxygen saturation
Jun 25, 2018

Measuring method of blood oxygen saturation

Multiple clinical diseases will cause the lack of oxygen supply, which will directly affect the normal metabolism of cells, serious can also threaten human life, so the real-time monitoring of arterial blood oxygen concentration is very important in clinical rescue. The traditional method of measuring blood oxygen saturation is to carry out the human blood sampling first, and then use the Blood Gas analyzer for electrochemical analysis to measure the blood oxygen partial pressure PO2 to calculate the oxygen saturation of hemorrhage.

This method is cumbersome and cannot be monitored continuously. The current method of measurement is to use a finger-type photoelectric sensor, measurement, simply put the sensor on the human finger, using the fingers as a transparent container of hemoglobin, using wavelength 660 nm red and 940 nm of near-infrared light as the injection light, measured through the tissue bed light conduction intensity, To calculate the hemoglobin concentration and blood oxygen saturation, the instrument can show the blood oxygen saturation of human body, and provide a continuous noninvasive blood oxygen measuring instrument for clinic.

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