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Human blood vessel detection system based on laser photoacoustic spectrometry

A technology of photoacoustic spectroscopy and detection system, which is applied in the direction of using spectral diagnosis, catheter, diagnostic recording/measurement, etc., to achieve the effect of reducing volume and cost

Active Publication Date: 2019-03-22
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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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.

Method used

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  • Human blood vessel detection system 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 system based on laser photoacoustic spectroscopy proposed by the present invention is mainly composed of a main controller 21, a scanning head 1, a three-dimensional electric platform 22 and auxiliary components;

[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 ultrasonic cable 14; wherein the Raman receiving component is composed of a dichromatic film 42, a fiber coup...

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Abstract

The invention discloses a human blood vessel detection system based on laser photoacoustic spectrometry. The system is mainly composed of a main controller, a scanning head portion, a three-dimensional electric platform and an assistant part. The system has the advantages that laser photoacoustic and laser Raman multiplex a light source and part of light path, so that size and cost of the system are reduced; blood flow photoacoustic echo in blood vessels is taken as a spatial analysis standard, and time domain resolution photoacoustic echo signal analysis is adopted, so that blood flow penetrating a main axis path at a same moment, vascular inside tissue and photoacoustic echo signal corresponding to each layering substance of vascular wall can be analyzed out, and detection of photoacoustic to outside morphology and inside tissue form distribution of blood vessel at the same time can be realized; photoacoustic combined with laser Raman can realize molecular ingredient detection of each layering substance of the vascular wall.

Description

technical field [0001] The invention relates to a human blood vessel detection system, in particular to a detection system 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. However, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/02A61B5/00
CPCA61B5/0075A61B5/0095A61B5/02
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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