The metabolic process of the human body is the biological oxidation process, and the oxygen needed by the metabolism is entered into the human blood through the respiratory system, and the hemoglobin in the red blood cells of the blood, combined with the oxygenated hemoglobin, and then transported to the various parts of the human body to the tissue cells, that is, the blood oxygen concentration in the blood. Hypoxia is the root cause of many diseases, which directly threatens people's life when it is serious. The real-time monitoring of portable finger clamp oximeter is very necessary in clinical and personal health management, so as to evaluate the state of blood oxygen saturation in time, detect hypoxemia and disease outcome status very early, and effectively prevent or reduce the accidents caused by hypoxia.
Measurement principle
In two different wavelengths of light emitting diode red and infrared light through the fingers, by the side of the photosensitive sensor detects light signal transmission, and according to the red light and infrared light of oxyhemoglobin and reduction of hemoglobin absorption rate of different features, detection circuit to get pulsating artery blood flow caused by light absorption of the change of the waveform,Then the blood oxygen saturation and pulse rate are calculated.
Blood oxygen monitoring is very necessary. The blood oxygen concentration of adults is greater than or equal to 95%, and patients need to be monitored every 4 hours during home isolation.