Apparatus and method for nondestructive optical constant imaging of dermatosis tissue of human body

A technology of optical constants and human skin, which is used in measurement devices, material analysis by optical means, medical science, etc., can solve the problems of difficulty in judging the degree of diseased tissue, high clinical misdiagnosis rate and missed diagnosis rate, and achieve real-time non-destructive testing. Optical constant spectrum, high degree of automation, stable work effect

Inactive Publication Date: 2008-12-03
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

However, the shortcomings of this technology are also very obvious, because it uses diffuse light intensity for imaging, and light intensity is a relative value, and there is no definite intensity value for reference between disea...

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  • Apparatus and method for nondestructive optical constant imaging of dermatosis tissue of human body
  • Apparatus and method for nondestructive optical constant imaging of dermatosis tissue of human body
  • Apparatus and method for nondestructive optical constant imaging of dermatosis tissue of human body

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] see figure 1 , introduce the structural composition and working principle of the device for non-destructive optical constant imaging of human skin lesion tissue by using linear array CCD to detect diffuse reflected light after obliquely incident light on the tissue surface:

[0038] The device comprises a tungsten-halogen lamp 1, an incident optical fiber probe 8, a linear array CCD 9 receiving diffusely reflected light, a grating spectrometer 2 sequentially connected through an optical fiber, an amplification filter circuit 3, an analog-to-digital conversion circuit 4, a computer 5 and a computer controlled by the computer 5. , A three-dimensional mobile workbench 6 with a clamping rod 7 moving in three directions.

[0039] Among them, it is used to measu...

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Abstract

The invention relates to a device for carrying out the nondestructive optical constant imaging of a human body cutis pathologic tissue and a method thereof. The device comprises a tungsten halogen lamp, an incident fiber optic probe, a line array CCD for receiving diffused reflection light, and a grating spectrograph, an amplification filter circuit, an A/D conversion circuit, a computer and a computer-controlled three-dimensional traveling table which are connected in turn through an optical fiber. The invention uses the line array CCD optical measurement device detecting the obliquely incident diffused reflection light to detect the human body cutis tissue, uses a Monte Carlo statistical method limited by characteristic parameters to conversely compute the values of the absorption coefficient and the reduction scattering coefficient at each two-dimensional space coordinates of the detected cutis tissue, then uses the grating spectrograph to carry out spectrum, and respectively images through the absorption coefficient and the reduction scattering coefficient and simultaneously detects the detected human body pathologic tissue and a healthful tissue around the pathologic tissue. Then the optical constants of the pathologic tissue and the healthful tissue are compared to see difference or the optical constant of the pathologic tissue is compared with a healthful human body tissue sample, thereby carrying out the diagnosis and identification of diseases.

Description

technical field [0001] The present invention relates to a device and method for diagnosing the lesion degree of human skin tissue, to be precise, it relates to a method of non-destructive optical constant imaging of human skin lesion tissue, and then by comparing the optical properties of healthy tissue, to diagnose and quantitatively judge human skin tissue The device and method for detecting lesion degree can also be used to determine the dose of skin tissue laser physiotherapy or laser surgery through the obtained optical constants including absorption coefficient and reduced scattering coefficient, which belong to the field of biomedical imaging technology. Background technique [0002] The interaction between near-infrared light (wavelength 600nm ~ 1000nm) and biological tissue is mainly characterized by weak absorption and strong scattering. After the light in this band is irradiated on the surface of biological tissue, it will penetrate to a certain depth and then be ...

Claims

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Application Information

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IPC IPC(8): A61B5/00G01N21/35G01N21/49G01N21/3563G01N21/359
Inventor 孙萍
Owner BEIJING NORMAL UNIVERSITY
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