Time-resolved measurement system and method for reconstructing optical parameters of turbid medium

An optical parameter, time-resolved technology, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems with little research

Inactive Publication Date: 2011-12-14
TIANJIN UNIV
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  • Application Information

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Problems solved by technology

At present, foreign researchers have done a lot of basic research work in this area, but domestic research in this area is very little

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  • Time-resolved measurement system and method for reconstructing optical parameters of turbid medium
  • Time-resolved measurement system and method for reconstructing optical parameters of turbid medium
  • Time-resolved measurement system and method for reconstructing optical parameters of turbid medium

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Embodiment Construction

[0068] Technical scheme of the present invention is as follows:

[0069] A time-resolved measurement system and method for reconstructing optical parameters of a turbid medium, that is, a system and method for measuring optical parameters of a turbid medium based on time-correlated single photon counting.

[0070] A device for measuring optical parameters of a turbid medium based on time-correlated single photon counting technology, including a light source system, a detection system, a computer and a data acquisition system. The light source system includes: three or more semiconductor picosecond pulse lasers, which can provide laser light sources with three or more wavelengths; one more optical switch is used to selectively switch the semiconductor lasers ; Variable attenuator, used to properly attenuate the laser light generated by the selected laser. The laser light emitted by the variable attenuator enters the turbid medium through the incident fiber to be scattered or a...

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Abstract

The invention belongs to the field of optical parameter measurement, and in particular relates to a time-resolved measurement system and method for reconstructing optical parameters of a turbid medium. In order to realize fast, real-time, and non-invasive in vivo measurement of tissue optical parameters at different wavelengths, the technical solution adopted in the present invention is: the laser light emitted by the variable attenuator enters the turbid medium through the incident optical fiber to be scattered or absorbed, and then the laser light emitted by the detection optical fiber Receive the reflected or transmitted laser light from the surface of the medium; the laser light measured by the detection fiber is sent to the PMT detector with cooling function, and the electronic pulse output by the PMT detector is input into the time-correlated single-photon counting module TCSPC, and the time-correlated single-photon counting module TCSPC A time-expansion curve exiting the tissue is obtained and input to a computer for processing. The invention is mainly used for measuring the optical parameters of tissue bodies under different wavelengths.

Description

technical field [0001] The invention belongs to the field of optical parameter measurement in tissue optics research, in particular to a time-resolved measurement system and method for reconstructing optical parameters of turbid media. technical background [0002] With the development of society and the continuous improvement of people's economy and living standards, the requirements for non-destructiveness, comfort and reliability of medical diagnosis and treatment are also getting higher and higher. At present, almost all science and technology will revolve around the development of human beings and human beings, seeking their own meaningful growth points and development aspects, while the key research objects of life sciences are directed at some major issues of higher living organisms and the human body itself. Looking at modern medical technology, biomedical measurement is either based on the detection of biological signals such as body temperature and electrocardiogra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00
Inventor 高峰李娇张丽敏赵会娟
Owner TIANJIN UNIV
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