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A human blood vessel detection system based on laser photoacoustic spectroscopy

A technology of photoacoustic spectroscopy and detection system, 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: 2021-04-09
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
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  • 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.

Method used

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  • A human blood vessel detection system based on laser photoacoustic spectroscopy

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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 spectroscopy, which is mainly composed of a main controller, a scanning head, a three-dimensional electric platform and auxiliary components. The beneficial effect of the present invention is that laser photoacoustic and laser Raman multiplex the light source and part of the optical path, reducing the volume and cost of the system; taking the blood flow photoacoustic echo in the blood vessel as the spatial analysis benchmark, and adopting time-domain resolution photoacoustic The echo signal analysis can analyze the photoacoustic echo signals corresponding to the blood flow passing through the main axis path, the internal tissue of the blood vessel, and the layered substances of the blood vessel wall at the same time, and can realize the photoacoustic analysis of the external shape and internal tissue of the blood vessel. Simultaneous detection of morphological distribution; photoacoustics combined with laser Raman can realize the detection of molecular components of each layered substance in the blood vessel 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 Patents(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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