Open-close control system for artificial anal sphincter prosthesis

Abstract

The invention discloses an open-close control system for an artificial anal sphincter prosthesis in the field of prostheses. The open-close control system comprises a sphincter prothesis, a plurality of pressure sensors arranged at the contact parts of the sphincter prothesis and an organ, a pressure signal processing module and a microcontroller, wherein the pressure sensors perceive occlusion pressure of the sphincter prothesis on the organ, the occlusion pressure is converted into electrical signals and then transmitted to the microcontroller through the pressure signal processing module; the microcontroller carries out open-close control calculation, and sends out opening or closing instruction on the sphincter prothesis, so that the open-close action control on the sphincter prothesis is realized. The open-close control system can realize accuracy control of the open and close of the sphincter prothesis.

Description

technical field [0001] The invention relates to a control system in the field of prosthesis, in particular to an opening and closing control system for an artificial anal sphincter prosthesis. Background technique [0002] Fecal incontinence is a clinically common disease. According to statistics, the incidence rate of adults is as high as 2%, and the incidence rate of people over 65 years old can reach 7%. underestimated. Fecal incontinence refers to the loss of the anal sphincter's ability to control the excretion of feces and gas. It is easy to cause a variety of complications, which not only brings great pain to patients, but also brings many difficulties to nursing work. With the aging trend of the population With the development, fecal incontinence has become one of the clinical diseases that urgently need to be solved. [0003] Severe fecal incontinence is caused by the loss of function of the anal sphincter or the removal of the anal sphincter. The surgical treatme...

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Problems solved by technology

[0004] After searching the literature of the prior art, it is found that: U.S. Patent No. US7011622B2 and US8172745A1 disclose a kind of Artificial Anal Sphincter (artificial anal sphincter for the treatment of fecal incontinence), which is composed of Pressure Regulating Ballon (pressure regulating ball), Control Pump (Control pump) and Cuff (clamp pouch) are composed of three parts. The control pump is the key component of this artificial anal sphincter. Its working principle is to manually squeeze to make it work. The disadvantages of this artificial anal sphincter are: The patient must manually squeeze the control pump to drain the liquid in the clamp bag to the reservoir bag, and the control pump is implanted in the scrotum (male) or labia (female), which affects the life of the patient

[0005] Chinese Patent Publication No. CN102871773A, publication date 2013-01-16, discloses an "electromagnetically controlled artificial anal sphincter device based on rectal sensing function", which consists of an electromagnetically controlled actuator, two splint transmission mechanisms and arc The arc-shaped closing mechanism is composed of an electromagnetic actuator paired with a transmission mechanism, so that the arc-shaped closing mechanism tightens and clamps the intestinal tract. However, the disadvantage of this mechanism is that the prosthesis is not precisely controlled to open and close, and the effective control of stool is different from that of the transmission mechanism. The safety of the blood supply needs to be verified

[0006] In summary, although the artificial anal sphincter system is an effective solution for the treatment of severe fecal incontinence, the manual control of the artificial anal sphincter prosthesis structure in the opening and closing control of the artificial anal sphincter has adverse effects on patients; Close control is rough

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