Human tissue blood oxygen saturation degree absolute amount detection device and method

Abstract

The invention provides a human tissue blood oxygen saturation degree absolute amount detection device which comprises a power module, an acquisition control module, a light source driving module, a detection mechanism and an amplification / filtration module, wherein the power module is electrically connected with the acquisition control module; the acquisition control module is electrically conducted with the light source driving module and comprises a light source selection counter, a synchronous trigger, a multi-way switch A / D (Analog / Digital) converter and a data processor; the light source driving module is connected with and drives the detection mechanism, and the detection mechanism is electrically conducted with the acquisition control module through the amplification / filtration module. By means of the structure or the combination of constructions thereof, the detection device is implemented, and thus the favorable effects of blood oxygen saturation degree absolute amount detection, noninvasive measurement, real time, portability, low cost, rapidness in use and measurement accuracy are achieved.

Description

Technical field [0001] The invention relates to a medical instrument, in particular to a device and a method for detecting the absolute amount of human tissue blood oxygen saturation. Background technique [0002] Measuring the concentration of blood oxygen saturation in local tissues of the human body and observing its changes over time will help to understand the absolute concentration of blood oxygen saturation in local tissues of patients with diseases and patients during surgery, and provide a basis for doctors’ diagnosis . [0003] The present invention is based on the modified Lambert-Beer law and uses a non-destructive, safe and stable near-infrared detection method for human tissues with high scattering to monitor changes in blood oxygen saturation. The measurement of the absolute value of the blood oxygen saturation of brain tissue provides effective clinical evidence for doctors in clinical anesthesia surgery and critical patient monitoring applications. It is of great ...

AI Technical Summary

Problems solved by technology

Closely related to the present invention is the patent ZL 200310113534.7 that uses near-infrared spectroscopy to detect oxygen in human tissue. The relative measurement of blood oxygen saturation changes under oxygen stimulation cannot be measured in absolute quantities, so it cannot reflect the difference between patients and normal people, or the difference between lesion areas and normal areas

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