Dual-mode probe combined with ultrasonic imaging and optical coherence tomography imaging

Abstract

The invention provides a dual-mode probe combined with ultrasonic imaging and optical coherence tomography imaging, which comprises a dual-mode imaging core module, wherein the dual-mode imaging coremodule comprises a base and an imaging component, the imaging component comprises a light guide element and a focusing element, a ligh beam transition component and a ultrasonic transducer, the ultrasonic transducer, the light guide element and the focusing element are respectively fixed on a base, the light beam transition component is a independent element which is fixedly arranged on the base or a light beam transition surface arranged on the base or on the back side surface of the ultrasonic transducer, the light beam emerging surfaces of the light guide element and focusing element face towards the light beam transition component; light is emitted from the light guide element and the focusing element and passes through the light beam transition component, a ultrasonic beam is emittedfrom the ultrasonic transducer, and the direction of the light emerging is the same as or opposite to the direction of the ultrasonic beam emerging. According to the technical scheme, the base is utilized to fix the ultrasonic and optical elements, the stability and reliability of working are guaranteed, and the ultrasound and OCT images of diseased tissues can be collected at one time.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a dual-mode probe combined with ultrasonic imaging and optical coherence tomography. Background technique [0002] At present, ultrasonic imaging technology and OCT (optical coherence tomography) technology are relatively mature in the field of medical endoscopic imaging, and are widely used in clinical disease diagnosis and surgical assistance. In endoscopic imaging technology, the probe is the core component of the endoscopic imaging system, which directly determines the image quality. Ultrasound has better penetrability to biological tissues, and can reach tens of millimeters to several centimeters, and the imaging depth is much greater than that of OCT. However, because OCT uses near-infrared light as a detection method, its frequency is much higher than that of ultrasonic waves. Therefore, the resolution of OCT images (a few microns to a dozen microns) is more than ...

AI Technical Summary

Problems solved by technology

However, because OCT uses near-infrared light as a detection method, its frequency is much higher than that of ultrasonic waves. Therefore, the resolution of OCT images (a few microns to a dozen microns) is more than 10 times that of ultrasonic images. The disadvantage is that the imaging depth of OCT is only ( One to two millimeters), so the imaging depth of the two is very different

In recent years, although universities and research institutions have been developing dual-mode imaging probes that combine ultrasound and OCT, due to technical difficulties, complex processes, complex assembly, and differences in imaging depth, the stability and reliability of the work are still improving. Therefore, there is no such dual-mode probe available in clinical practice at present.

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