Self-stable patency capsule of alimentary canal

Abstract

The invention discloses a self-stable patency capsule of the alimentary canal. The self-stable patency capsule comprises a capsule body, and an enteric-coated shell and an elastic part made of a degradable material, wherein the elastic part is at least arranged at one end of the capsule body; the capsule body and the elastic part are wrapped by the enteric-coated shell, so that the elastic part is in a compressed state; after the enteric-coated shell reaches the small intestine and is dissolved, the elastic part is restored to the original length to increase the length of the entire capsule so as to prevent turning; and the elastic part is preferably a spring. The spring is released in the small intestine, so that the overall length of the capsule is increased, and stable movement towards the same direction in the small intestine can be realized, a self-stable capsule endoscope is also provided with a spring which can be used for increasing the length in the small intestine; both the size and the eight of the self-stable capsule endoscope are similar to those of the patency capsule; and thus, a movement process in the alimentary canal is actually preview of examination of the self-stable capsule endoscope, so that the feasibility for examination of the self-stable capsule endoscope can be accurately evaluated.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a digestive tract self-stabilizing capsule. Background technique [0002] Since 2001, when capsule endoscopy was approved by the U.S. Food and Drug Administration for the examination of small intestinal diseases, capsule endoscopy has been favored by doctors and patients for its simple, convenient, painless, non-invasive, and safe operation. Currently, capsule endoscopy is mainly used in the diagnosis of unexplained gastrointestinal bleeding, Crohn's disease, and small bowel tumors. [0003] However, capsule retention due to small bowel tumors or strictures is a common complication of capsule endoscopy. Because the capsule endoscope is not degradable, if it is retained in the body, it must be taken out, otherwise serious consequences will result. The small intestine is different from the stomach and colon. Due to its special anatomical location and structure, once capsu...

AI Technical Summary

Problems solved by technology

The above two capsules are similar in size to ordinary capsule endoscopes, but their movement in the small intestine is unpredictable, and the capsules are prone to rollover, because this degradable capsule cannot simulate the self-stabilization (not easy to roll over) of the capsule endoscope in the small intestine Therefore, the feasibility of self-stabilizing capsule endoscopy cannot be accurately evaluated

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