An artificial anus controller for enterostomy

Abstract

The invention provides an artificial anus controller for enterostomy, which relates to the technical field of auxiliary medical devices, and includes a guide tube, a blocking member and a controller for driving the blocking member to deform along the radial direction of the guide tube. A drive assembly; the blocking member includes a plurality of support members fixed on the inner side wall of the guide tube, the plurality of support members are evenly arranged along the radial direction of the guide tube, and the support members are composed of bidirectional support members. The support is made of shape memory polymer, and the support has an initial shape and a temporary shape. Under the initial shape, a plurality of the support is attached to each other to form a sealing state to block the flow channel, and in the temporary shape Next, a plurality of the support members are separated from each other to form an open state to open the flow channel. The invention adopts the support made of the bidirectional shape memory polymer to simulate the function of the human sphincter, ensures the blocking efficiency and blocking effect of the stoma, and can effectively control defecation and prevent the leakage of fecal water.

Description

technical field [0001] The invention relates to the technical field of auxiliary medical devices, in particular to an artificial anus controller for enterostomy. Background technique [0002] The sphincter is a kind of annular muscle distributed in the lumen wall of some hollow organs in the human body, commonly found in the digestive tract and urinary system, and plays a vital role in controlling the normal flow of the contents of the hollow organs. The weakening or loss of sphincter function caused by various reasons can cause serious adverse clinical consequences, such as reflux esophagitis caused by weakened lower esophageal sphincter function, bile reflux gastritis caused by relaxation of pyloric sphincter, and urinary incontinence caused by urethral sphincter injury. , Anal sphincter injury causes human anal function failure and fecal incontinence. Although the above-mentioned diseases are not fatal, they cause both physical and mental suffering to the patients, and a...

AI Technical Summary

Problems solved by technology

[0004] At present, artificial bionic anal devices can be roughly divided into two categories: one is to use a sealing device to seal the stoma of the artificial anus, and the sealing device needs to be removed entirely or partly, such as the stoma bag for large stools, during defecation , the operation is both troublesome and unsanitary. The other is to simulate the anal sphincter, and apply lateral force to make the stoma of the artificial anus or the artificial anus shrink and seal it. or artificial anal opening

Based on the different methods of lateral force application, the devices for simulating the anal sphincter are also divided into two categories: one is to use the clamping device to directly act on the elastic outer wall of the intestinal tube to make it close or open, but it is easy to cause the intestinal tube to be closed due to lack of The other type is to connect the intestinal tube with the capsule tube, and inflate or fill the capsule tube with water to control the blockage or opening of the capsule tube. The sealing effect is generally difficult to meet the requirements. Great inconvenience, but also bring serious psychological problems to patients

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