Information acquisition device

Abstract

The invention relates to the technical field of information acquisition, in particular to an information acquisition device. In the information acquisition device provided by the invention, laser emitted by a laser source is transmitted to a self-focusing coupling optical fiber through a first discrete end optical fiber, a self-focusing laser beam output by the self-focusing coupling optical fiberis focused on the surface of a sample to be detected through a transparent ultrasonic probe to generate a photoacoustic signal, and the transparent ultrasonic probe receives the photoacoustic signal;a rare earth-containing piezoelectric element is excited by the laser to generate fluorescence, the fluorescence irradiates the sample to be detected to generate an optical signal, and the optical signal is transmitted to the micro CCD image sensor via the transparent ultrasonic probe through the self-focusing coupling optical fiber and the second discrete end optical fiber; the transparent probecan also transmit and receive ultrasonic signals by itself. The device can collect an optical signal, a photoacoustic signal and an ultrasonic signal of a to-be-detected sample, the condition in theto-be-detected sample can be observed after the three signals are analyzed, processed and imaged, imaging results of the three signals are compared with one another, advantages and disadvantages are complementary, and the detection accuracy can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of information collection, in particular to an information collection device. Background technique [0002] With the rapid development of the economy and the rapid improvement of people's living standards, the threat of vascular diseases has become increasingly prominent, and its incidence has been increasing year by year. Traditional blood vessel detection methods include magnetic resonance angiography, CT angiography, etc. Although these methods can display the external shape and internal contour of the blood vessel well, they cannot show the detailed structure of the blood vessel wall and the lumen of the blood vessel. Intravascular ultrasound imaging Using a micro-ultrasound transducer to detect the size of the lumen and the structure of the vessel wall through internal imaging of the vessel, it can display the anatomical structure of the cross-section of the vessel in real time, and plays an irreplaceab...

AI Technical Summary

Problems solved by technology

Traditional blood vessel detection methods include magnetic resonance angiography, CT angiography, etc. Although these methods can display the external shape and internal contour of the blood vessel well, they cannot show the detailed structure of the vessel wall and the vessel lumen. Intravascular ultrasound imaging Using a micro-ultrasound transducer to detect the size of the lumen and the structure of the vessel wall through internal imaging of the vessel, it can display the anatomical structure of the cross-section of the vessel in real time, and plays an irreplaceable role in the detection of various vascular diseases

[0003] As far as the current technology is concerned, the images obtained by simply collecting ultrasound signals and using ultrasound imaging may have artifacts, which cannot completely and accurately reflect the structure of blood vessels.

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