Parallel near-infrared photoelectric sensing device and system and method for detecting organs and tissue of animals

Abstract

Provided are a parallel near-infrared photoelectric sensing device and a system and method for detecting organs and tissue of animals. The parallel near-infrared photoelectric sensing device and the system and method for detecting the organs and the tissue of the animals can be applied to detection on the degree of blood oxygen saturation and concentration and variable quantity of the concentration of photoactive substances of skin, lymph, external genitals, prostate glands, brains, mammary glands, urinary bladders and other organs and tissue needing multiple depth levels or having physiological shifting. The parallel near-infrared photoelectric sensing device is characterized by comprising a sensing component distributing surface, a light source signal emitter array and an optical signal receiver array are arranged on the sensing component distributing surface, the light source signal emitter array comprises an emitter unit composed of at least two light source signal emitters, the optical signal receiver array comprises a receiver unit composed of at least two optical signal receivers, and the emitter unit and the receiver unit are arranged on the sensing component distributing surface in parallel or in a staggered mode.

Description

technical field [0001] The invention relates to a photoelectric sensing technology based on near infrared spectroscopy (Near Infrared Spectroscopy, NIRS), in particular to a parallel near infrared photoelectric sensing device and an animal organ tissue detection system and method. The parallel near-infrared photoelectric sensing device can be applied to the detection of the concentration of photosensitive substances or their variation in organ tissues and blood oxygen saturation. The example of the present invention adopts a plurality of near-infrared light emitters and a plurality of near-infrared light signal receivers, by adjusting the different distances between each light emitter and receiver, to detect organs and tissues of different depths or levels; using three or Near-infrared light sources of more than three different wavelengths irradiate the target organ tissue, and calculate the concentration value of the photosensitive substance or its variation by selecting the ...

AI Technical Summary

Problems solved by technology

Clinically, during the transformation process of fullness and emptiness, the tip of the bladder gradually moves up and down on the inner side of the pubic bone with the increase or decrease of urine, and this physiological displacement phenomenon brings problems in detection technology. The displacement of the target organ tissue is relatively sensitive, and the information obtained from the detection may contain false information including physiological displacement; 2) The detected organ tissue moves out of the detection range of the photoelectric sensor during the displacement process

[0041] Chinese patent application 201220137655.X uses two optical transmitters with different wavelengths and different positions and two optical signal receivers with different distances to detect the blood oxygen saturation of animal organs and tissues, but does not give how to use this Sensor setup and calculations for multiple geometries

[0043] In summary, the current problems of NIRS technology in clinical application are as follows: 1) For the detection of animal organs and tissues, due to the similar optical properties of target organ tissues and surrounding tissues or photosensitive substances at different detection depth levels, so Detected data cannot be proven to be indicative of pure target organ tissue properties

2) During the detection process, the physiological shift of the target organ tissue affects the detection of its photosensitive substance concentration, and this physiological shift is often regarded as a part of the change in the photosensitive substance concentration, which in turn affects the detection results

4) The Beer-Lambert law is challenged in the actual clinical application mainly based on scattering, and in the improved law, since the scattering factor G is an unknown constant, the direct calculation of the absolute value of the target photosensitive substance concentration in formula (8) is in It is difficult in practical application

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