Praeternaturalis anus control device for enterostomy

Abstract

The invention relates to a praeternaturalis anus control device for enterostomy. The device is provided with a sleeve (1) arranged on the intestinal stomas and is characterized in that a first oval ball bag (6) and a second oval ball bag (7) are arranged in the sleeve (1) from top to bottom in a staggered mode, a first transmission pipeline (2) and a second transmission pipeline (3) which are mutually communicated are oppositely arranged on the pipe wall of the sleeve (1), the first oval ball bag (6) is communicated with the first transmission pipeline (2), and the second oval ball bag (7) is communicated with the second transmission pipeline (3); the long axis of the first oval circular ball bag (6) and the long axis of the second oval circular ball bag (6) are respectively perpendicular to the axis of the sleeve, and the long axes of the two oval ball bags are larger than the radius of the sleeve (1) and smaller than the diameter of the sleeve (1); the vertical distance between the centers of the two oval ball bags is smaller than the sum of the minor semi-axes of the two oval ball bags and larger than 1/2 of the sum of the minor semi-axes of the two oval ball bags.

Description

technical field [0001] The invention relates to a prosthesis providing an opening for a tubular structure of a human body, in particular to a control device for an artificial anus. Background technique [0002] Abdominal perineal combined radical rectal cancer surgery (Miles surgery) for rectal cancer is the first choice for most low rectal cancers and is an important part of colorectal cancer surgery. The proportion of rectal cancer in people (<30 years old) is constantly increasing. According to statistics, the incidence of rectal cancer in my country is 25-35 per 100,000 people, and 30% of them have to resect the anus because the tumor is too low. According to the chairman of the Chinese Ostomy Association Professor Yu Dehong estimates that there are about 100,000 new permanent enterostomy patients in my country each year, and the cumulative number of enterostomy patients reaches 1 million, and there will be an increasing trend in the future. [0003] In order to solve ...

AI Technical Summary

Problems solved by technology

The above-mentioned artificial anus can realize defecation control by inflating and deflating the annular fetal sac, but if the inner diameter of the annular fetal sac is to be used for defecation, the inner diameter of the annular fetal sac cannot be zero, so the annular fetal sac is filled with In the state of air, it cannot be completely sealed

In order to solve the above-mentioned problems, the solution described in the above-mentioned patent application makes the inner circle of the annular tire sac into a multi-petal shape, and uses the petal-shaped structure formed after inflation to seal, but due to consideration of the smoothness of defecation, the described It is also difficult to ensure that the inner circle of the annular fetal sac is completely sealed by the valve-shaped structure, that is, the inner wall of the intestinal tube cannot be completely fitted (see the attached description of the above-mentioned patent application). image 3 or 4), so its leakage problem is still foreseeable

The utility model patent schemes with publication numbers CN2358919Y and CN2510034Y disclosed after the above-mentioned patent application are also similar to the scheme of the invention patent application with publication number CN1116083A, therefore, their leakage problem is still unavoidable

In addition, the solution of lateral force control defecation described in the above-mentioned patent application, because the lateral force generated by it is relatively acting on the intestinal tract, so if there is a large hard block in the intestinal tract that cannot be discharged when the lateral force acts during closure , it will affect the fit of the intestinal wall and leak

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