A combined stereoscopic scanning optical and acoustic endoscopic imaging device and method thereof

Abstract

The invention relates to a combined type solid angle scanning photo / acoustic endoscopic imaging device. The device comprises a sleeve as well as a stepping motor, a rotating shaft, a photoelectric slip ring, an optical fiber coupler, a focusing lens, an oil cavity, a detecting platform, an optical cable and an electric cable which are uniformly arranged in the sleeve, wherein the oil cavity is internally provided with an ultrasonic transducer, a reflector and a reflector driver; from the near end to the far end of the device, the photoelectric slip ring, the optical fiber coupler, the focusing lens and the oil cavity are sequentially arranged on the rotating shaft; the oil cavity is internally provided with the ultrasonic transducer, the reflector and the reflector driver which are sequentially arranged, and the reflector is mounted on the reflector driver. The invention also relates to an imaging method of the device. The scanning efficiency and scanning accuracy of the device are high, the range of single scan is large and the device belongs to the technical field of endoscopes.

Description

technical field [0001] The invention relates to the technical field of endoscopes, in particular to a combined stereoscopic scanning optical and acoustic endoscopic imaging device and method thereof. Background technique [0002] The combination of multiple imaging methods can learn from each other and make up for the shortcomings of a single imaging mode. Different imaging modes use their own advantages to image different targets, and different imaging modes image the same target, which can obtain richer and higher-quality internal defect information or histopathological information of the object. [0003] The commonly used endoscopes are mainly optical and ultrasonic. Taking living organisms as an example, optical endoscopes can only image the surface of the internal cavity of the subject, such as the detection of the digestive tract, and cannot perform early detection of lesions originating from deep layers. Ultrasonic endoscopes receive echo signals from various layers...

AI Technical Summary

Problems solved by technology

[0007] Most of the photoacoustic and ultrasonic scanning imaging methods in the prior art are a single circular scan, and one scan can only obtain one layer of cross-section of the detected lumen, and the scanning efficiency is low; in order to obtain multi-layer cross-sections of the lumen, The endoscopic probe must be manually pushed and pulled. In addition to the low scanning speed, it also seriously affects the scanning accuracy and makes it difficult to achieve accurate imaging.

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