Controllable artificial sphincter

By designing a ring-shaped component and a plunger for implantation at the stoma, and using permanent magnets and pressure sensors for monitoring, the problems of slippage, malfunction, and compression in existing sphincter devices have been solved, enabling controllable opening and closing of the sphincter, improving patients' quality of life and reducing risks.

CN224292051UActive Publication Date: 2026-05-29徐惠明
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Patent Information

Application Number
CN202520675610.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-05-29
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing artificial sphincter devices have problems in clinical applications, such as slippage, mechanical failure, tissue compression leading to decreased compliance and malfunction of opening and closing, and inability to be fixed, resulting in uncontrolled excretion in postoperative patients.

Method used

It employs an implantable annular component and an insertable or removable plunger, utilizing a permanent magnet to attract ferromagnetic metal plates to achieve the closure and opening of the sphincter. Combined with pressure sensor monitoring and an alarm to alert the user, it ensures safety and controllability.

Benefits of technology

It enables controllable opening and closing of the sphincter, improves the quality of life of postoperative patients, reduces safety risks, and is simple and inexpensive to operate.

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Abstract

The utility model discloses an artificial sphincter capable of controlling opening and closing relates to postoperative auxiliary instrument. This artificial sphincter capable of controlling opening and closing, including implanting annular part of stoma and the plunger body that can be inserted or taken out from annular part. When plunger body inserts the annular part of implanting stoma, can realize the closure of stoma. After plunger body pulls out, can realize the opening of stoma, make the excretion activity of postoperative user change from uncontrolled to controllable state. In addition, still can set up pressure sensor in plunger body, can monitor the pressure change inside large intestine, and prompt patient defecation signal. Set up pressure sensor at the magnetic attraction part of plunger body to monitor the pressure of the mutual attraction of magnetic attraction part and annular part to large intestine wall, to prevent the pressure from being too big, lead to the influence to large intestine blood circulation. The utility model discloses simple operation has solved the problem that postoperative patient who loses sphincter function excretion is not controlled, has improved the life quality of postoperative patient.
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Citation Information

Patent Citations

  • Magnetic-ring artificial sphincter and manufacture and application method thereof

    CN102488571A

  • Coupling assembly for an implantable sphincter assist device

    CN113329700B