Cerebral blood oxygen detection system and method

Abstract

The invention belongs to the field of cerebral blood oxygen detection, and provides a cerebral blood oxygen detection system. The cerebral blood oxygen detection system comprises an acquisition module and a data processing module, wherein the acquisition module comprises N groups of light sources and M groups of detectors, the N groups of the light sources and the M groups of the detectors are arranged on the same side of a to-be-detected sample, and the N groups of the light sources emit at least three kinds of near-infrared light with different wavelengths into the to-be-detected sample; at least two groups of the detectors in the M groups of the detectors respectively receive near-infrared light signals which are not absorbed by the to-be-detected sample; and the data processing module is used for processing the near-infrared light signals according to the corrected Lambert-Beer law to obtain cerebral blood oxygen information of the to-be-detected sample. The system solves the technical problems that in the prior art, when the cerebral blood oxygen information is detected, the light sources and the detectors are arranged on two sides of the to-be-detected sample respectively, an optical density signal needs to penetrate through the tissue of the to-be-detected sample, the optical path is long, interference of other chromophores except oxygen-containing hemoglobin and deoxidized hemoglobin in the calculation process is large, and the calculation result error is larger.

Description

technical field [0001] This application belongs to the detection field, and in particular relates to a cerebral blood oxygen detection system and method Background technique [0002] The brain is the central nervous organ of the human body, which plays a pivotal role in all physiological activities of the human body. The measurement of blood oxygen content in the brain is an important indicator of brain cognition. [0003] The current cerebral blood oxygen detection method in the prior art, for example: the Chinese invention patent whose publication number is CN108186028A, the application date is June 22, 2018, and the subject name is non-contact cerebral blood oxygen detection system is based on the improved Lang Berber's law is used as a theoretical basis, and a detector and two light sources emit near-infrared light of different wavelengths for detection. However, when using this prior art to detect cerebral blood oxygen, there will be the following defects: one, the de...

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Problems solved by technology

[0005] The embodiment of the present application provides a cerebral blood oxygen detection system and method, which can solve the problem that when detecting cerebral blood oxygen information in the prior art, the light source and detector are respectively arranged on both sides of the sample to be detected, and the optical density signal needs to pass through the brain. Tissue, the optical path is long, and the calculation process is greatly interfered by other chromophores except oxygenated hemoglobin and deoxygenated hemoglobin, and the technical problem of greater error in calculation results

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