Controllable reciprocating ultrasonic scanning capsule endoscope

Abstract

The invention discloses a controllable reciprocating ultrasonic scanning capsule endoscope. While the device achieves capsule optical scanning, an ASIC circuit module and a reciprocating scanning driving module are used for achieving ultrasonic sensor array high resolution and large range reciprocating scanning imaging, real-time detection data transmission is achieved by means of the wireless transmission module, and therefore repeated real-time diagnosis with no foreign matter inside a digestive tract can be performed, and the diagnosis accuracy is improved. In addition, the MEMS microprocessing technology and the integrated circuit technology are combined, the diagnosis effect for the digestive tract diseases can be improved, the medical cost for digestive tract disease diagnosis can belowered by lowering the disposable medical instrument cost, and finally, high performance, micromation and low-cost manufacturing of ultrasonic capsules can be achieved.

Description

technical field [0001] The invention relates to the technical field of capsule endoscopy, in particular to a controllable reciprocating ultrasonic scanning capsule endoscope. Background technique [0002] Capsule endoscopy is currently an important method for the diagnosis of gastrointestinal diseases. It can complete the inspection of gastrointestinal diseases without invasiveness, pain and complications, and realize low-invasive and non-invasive diagnosis. Most of the existing oral capsule endoscopes on the market use optical imaging sensors. The working principle is that the patient swallows a capsule. After the medical capsule enters the body, it will move in the digestive tract with the gastrointestinal peristalsis. The image sensor collects the image of the surface layer of the digestive tract and stores it. Afterwards, the image is transmitted to the receiving device outside the body in the form of a digital signal by means of wireless transmission, and the image is r...

AI Technical Summary

Problems solved by technology

Capsule endoscopes with separate transceivers for ultrasonic probes are emitted by external sensors and received in capsules inside the body, realizing the capsule positioning function, but cannot realize ultrasonic imaging inside the digestive tract; while capsule endoscopes with a single planar micro piezoelectric array element for transmitting and receiving can be Realize 360° rotating scanning of the capsule wall, but the imaging effect of the planar structure of a single array element is poor, and it cannot realize repeated scanning in a large range

[0004] Aiming at the problem that the existing capsule endoscope cannot check the submucosal tissue lesions, this patent proposes a MEMS ultrasonic capsule endoscope device by utilizing the characteristics of good directionality, strong penetrating ability, and high safety of ultrasonic waves and the advantages of capsule endoscopy. , on the basis of the existing optical capsule endoscope, a dynamic scanning MEMS ultrasonic transceiver integrated array is embedded, which can not only directly observe the lesion morphology of the mucosal surface through the endoscope, but also perform controllable reciprocating ultrasonic scanning to obtain the The tissue characteristics of each section of the wall, thereby expanding the diagnostic range of capsule endoscopy and improving the diagnostic ability of endoscopy

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