Human body blood vessel detecting method based on laser photoacoustic spectrometry

A technology of photoacoustic spectroscopy and detection methods, applied in the direction of using spectral diagnosis, catheters, cardiac catheters, etc., to achieve the effect of reducing volume and cost

Active Publication Date: 2019-02-22
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photoacoustic imaging technology can realize the detection of blood vessel distribution, that is, the detection of external shape, but it is a difficult problem to be solved to detect the external shape of blood vessels and the distribution of internal tissue morphology at the same time.

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  • Human body blood vessel detecting method based on laser photoacoustic spectrometry

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Embodiment Construction

[0031] The specific embodiment of the present invention is as figure 1 shown.

[0032] The human blood vessel detection method based on laser photoacoustic spectroscopy proposed by the present invention is realized on a human blood vessel detection system based on laser photoacoustic spectroscopy. The system mainly consists of a main controller 21, a scanning head 1, and a three-dimensional electric platform 22 and accessories;

[0033] Among them, the auxiliary components include a fiber optic Raman spectrometer 41, a cascade amplifier 17, a detector circuit 18, a laser controller 19, a signal acquisition card 20, a three-way motor controller 23 and a three-way stepping motor 37;

[0034] The scanning head 1 contains a Raman receiving component, a photoacoustic detection head 10, a perforated mirror 12, a laser 2, a laser beam expander 7, a proportional beam splitter 31, a photoelectric detector 5, an ultrasonic probe 13, and a laser cable 6 , detector cable 8 and ultrasoni...

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Abstract

The invention discloses a human body blood vessel detecting method based on laser photoacoustic spectrometry. The method includes the steps of system initial positioning, single-point testing, time domain distinguishing photoacoustic positioning and analyzing, photoacoustic single-point blood vessel measuring, profile atheromatous plaque component analyzing and photoacoustic three-dimensional blood vessel reestablishing. The method has the advantages that a light source and part of light path are reused in laser photoacoustic and laser Raman, the size and cost of a system are reduced, photoacoustic echo signals corresponding to blood flow, blood vessel inner tissue and blood vessel wall layered substances passing through a main axis route at the same moment can be analyzed through time domain distinguishing photoacoustic echo signal analysis with the blood flow photoacoustic echoes in blood vessels as the space analysis standard, the external morphology of the blood vessels and the form distribution of the inner tissue can be detected at the same time through photoacoustic, and all the blood vessel wall layered substance molecular components can be detected through the combinationof photoacoustic and laser Raman.

Description

technical field [0001] The invention relates to a human blood vessel detection method, in particular to a blood vessel detection method based on the combination of laser photoacoustics and laser Raman, which is suitable for detection of three-dimensional structures and molecular components inside and outside human arteries and veins, and belongs to the field of photoelectric detection. Background technique [0002] Angiography is an auxiliary inspection technique used to monitor the health of blood vessels. It is widely used in the diagnosis and treatment of various clinical diseases. It helps doctors to detect the disease in time, control the progress of the disease, and effectively improve the survival of patients. Rate. Angiography is an interventional detection method. It needs to inject a contrast agent into the blood vessels of the subject. Because X-rays cannot penetrate the contrast agent, angiography can accurately reflect the location and degree of vascular lesions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/02A61B5/00
CPCA61B5/0075A61B5/0095A61B5/02007
Inventor 万雄王泓鹏袁汝俊何强
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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