Artificial anus controller for enterostomy

Abstract

The invention provides an artificial anus controller for enterostomy, and relates to the technical field of auxiliary medical instruments. The artificial anus controller comprises a flow guide pipe, a plugging piece and a driving assembly used for driving the plugging piece to deform in the radial direction of the flow guide pipe; the plugging piece comprises a plurality of supporting pieces fixedly arranged on the inner side wall of the flow guide pipe, the supporting pieces are evenly arranged in the radial direction of the flow guide pipe, the supporting pieces are made of bidirectional shape memory polymers and have an initial shape and a temporary shape; in the initial shape, the supporting pieces are attached to one another to form a sealed state so as to plug a flow channel; and in the temporary shape, the supporting pieces are separated from one another to form an open state so as to open the flow channel. The supporting pieces made of the bidirectional shape memory polymers are adopted for simulating the function of the sphincter of the human body, the plugging efficiency and the plugging effect of stoma are guaranteed, defecation can be effectively controlled, and liquid dung can be effectively prevented from leaking.

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 ring-shaped muscle distributed in the lumen wall of some hollow organs in the human body. It is commonly found in the digestive tract and urinary system, and plays a vital role in controlling the normal flow of the contents of hollow organs. Weakness or loss of sphincter function caused by various reasons can lead to serious adverse clinical consequences, such as reflux esophagitis caused by weakened lower esophageal cardia sphincter, bile reflux gastritis caused by pyloric sphincter relaxation, urinary incontinence caused by urethral sphincter injury , Anal sphincter damage causes human anal function failure leading to fecal incontinence. Although the above-mentioned diseases are not fatal, they cause both physical and mental pain to the patients, and also bring a g...

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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