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Feed-back control type artificial sphincter ani system

A feedback control and sphincter technology, applied in colostomy, medical science, prosthesis, etc., can solve problems such as difficult to accurately test pressure values, problems with system working life, and frequent operations of patients, so as to improve the quality of life and simplify The effect of the operation process and elimination of the possibility of infection

Inactive Publication Date: 2006-11-15
SHANGHAI JIAO TONG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

The device controls the clamping pressure by manually operating the one-way valve, so it cannot quantitatively control the clamping pressure
In addition, permanent magnets and reed relays are used to measure pressure changes, and there are problems such as difficult to accurately test the pressure value and quantitatively set the pressure threshold in the intestinal tract.
The patent designs the internal device to be completely "built-in" to eliminate the possibility of infection through the skin, but the "in vivo device" is powered by a button-type lithium battery, so there is a problem with the working life of the system, and the patient will still suffer from frequent operations bitter

Method used

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Embodiment Construction

[0016] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] The system composition of the present invention includes an in vivo part and an in vitro part. The internal part is composed of a wireless communication module, an artificial anal sphincter and an artificial anal sphincter controller, and is powered by an internal energy module. figure 1 It is a structural block diagram of the system body part of the present invention, such as figure 1 As shown, the wireless communication module consists of a tiny wireless transceiver and an antenna. The artificial anal sphincter is composed of a silicone pad, a pressure sensing pouch, a miniature pressure sensor, a clamp pouch, a clamp pressure sensor, and a fluid storage pouch. The artificial anal sphincter controller is composed of a micro pressure sensor conditioning circuit, a clamp pressure sensor conditioning circuit, a micro hydraulic pump, a ...

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Abstract

A feedback controlled artificial sphincter system for anus is composed of an internal unit consisting of wireless communication module, the artificial sphincter which comprises pressure sensing bag, miniature pressure sensor, clamping bag, clamping pressure sensor and liquid bag, the artificial sphincter controller which comprises the regulating circuits for said sensors, miniature hydraulic pump and its driver, and single-chip microprocessor, and the power module, and an external unit consisting of wireless transmitting coil on skin, harmonic oscillator, wireless communication module, and single-chip microprocessor system.

Description

technical field [0001] The invention relates to a feedback-controlled anal artificial sphincter system, which is a novel medical device for treating anal incontinence, and belongs to the technical fields of micro-electromechanical systems and biomedical engineering. Background technique [0002] The normal defecation process is mainly controlled by the following three aspects: (1) the anal sphincter and its maintenance pressure, which can generate appropriate pressure to prevent the flow of feces from the rectum during the non-defecation period; (2) the rectum and its ability to store stool, The rectum has the function of dilating and storing feces; (3) rectum and its sensory function: when feces are stored in the rectum to a certain extent, there will be a sense of defecation, and after the sense of defecation is transmitted to the brain, defecation behavior will occur. Once there are problems in the above three aspects, the phenomenon of defecation incontinence will occur,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/48A61F5/44A61F5/445
Inventor 颜国正刘华王文兴丁国清颜德田姜萍萍
Owner SHANGHAI JIAO TONG UNIV
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