Optical detection device and working method for tissue of living body

Abstract

An optical test device for the tissue of living body is composed of light emitter unit, optical fiber probe, optical spectrum analyzing and data processing unit, emitting optical fibers, receiving optical fibers, and optical switch. Its detecting method is also disclosed.

Description

technical field [0001] The invention relates to a device for detecting living tissue and a working method thereof. The results obtained after detection can be used by medical personnel to perform optical detection of tumors in living tissues and the like. Background technique [0002] The non-invasive detection of the human body, especially the tissue in the human tissue, is of great significance in clinical medicine, especially the non-destructive and rapid diagnosis of various tumors, which is of great significance for early diagnosis and improving the survival rate of cancer patients. [0003] Doctors' diagnosis of cancer is mostly based on experience and examination of biopsies, which has a certain degree of subjectivity and blindness, resulting in early-stage lesions being easily missed or misdiagnosed. [0004] Laser medicine is an emerging discipline of modern medicine. It integrates high and new technologies in the fields of laser, spectroscopy, fiber optics, optica...

AI Technical Summary

Problems solved by technology

The disadvantage of this technical solution is that this solution only considers the scattering characteristics of light on tissue cells, and does not consider the light absorption characteristics of chromophores in tissue bodies, which leads to low reliability of its measurement results and easily leads to missed or misdiagnosed

The disadvantage of this solution is that it mainly obtains the characteristics of the tissue by detecting the transmission spectrum, which is similar to X-ray breast detection. This method needs to compress the breast tissue to a certain extent before the detection can start, which brings certain pain to the patient. , and cannot detect and diagnose in vivo tissues

The disadvantage of this system is: when the computer in the system is working, it uses the light received by the monitor system to analyze the physical characteristics of the measured surface layer, and at the same time, the change of the light intensity is used as the feedback signal of the light source, and the light source is controlled by the controller. Output stability, this kind of feedback control is more complicated, and the electrical signal control often has a serious feedback lag, resulting in unstable output of the light source, which in turn leads to a large detection error of the system

In addition, the system cannot compare the light intensity of each wavelength output by the light source with the light intensity of the diffuse reflection light from the tissue surface, resulting in a large deviation in the diffuse reflection spectrum obtained by the computer that can be used to analyze the physical properties of biological tissues, and even cannot be used. diffuse reflectance spectrum, so the reliability of the system is not high

[0011] The disadvantage of the above prior art is that it can only optically detect the living tissue of a single depth, but the actual situation is that the living tissue of the disease has a certain horizontal area and longitudinal depth, and the living tissue of a single depth can only be detected by optical detection. Optical detection clearly cannot accurately detect the status of neoplastic lesions in living tissue

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