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Position limitation protection type ani sphincter prosthesis

A technology for anal sphincter and position-limiting protection, applied in the fields of prosthesis, muscle, medical science, etc., can solve problems such as damage to internal organs, achieve light weight, simple device structure, and improve the success rate of transplantation

Inactive Publication Date: 2016-11-23
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems in the prior art that the material is all metal, and there is no limit protection device, it is easy to cause damage to internal organs, etc., and proposes a limit protection type anal sphincter prosthesis

Method used

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  • Position limitation protection type ani sphincter prosthesis
  • Position limitation protection type ani sphincter prosthesis
  • Position limitation protection type ani sphincter prosthesis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, this embodiment includes: an upper fixed ring 11 sleeved on the upper ring sleeve 1, a movable middle ring 12 and a lower fixed ring 13 sleeved at both ends of the middle ring sleeve 8, wherein: the upper ring sleeve 1 and the middle ring sleeve The barrel 8 is axially connected, and a reduction box 4 connected with a motor is provided between the middle ring sleeve 8 and the upper ring sleeve 1. The reduction gear train 10 is connected, the upper cover plate 2 of the reduction box is provided with a Hall element 15, and the ring gear sleeve 3 and the opposite end of the upper cover plate 2 of the reduction box are provided with two magnets 16 matched with the Hall element 15 at intervals.

[0024] The motor is arranged in the motor sleeve 7, and the motor sleeve 7 is arranged in the middle ring sleeve 8, and the semicircular gaps of the two overlap. The lower end of the motor sleeve 7 protrudes from the lower end of the middle ring sleeve 8 ...

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PUM

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Abstract

A position limitation protection type ani sphincter prosthesis comprises an upper fixed ring arranged on an upper ring sleeve in a sleeving mode, a movable middle ring arranged on a middle ring sleeve in a sleeving mode and a lower fixed ring arranged on a motor sleeve in a sleeving mode, wherein the upper fixed ring, the movable middle ring and the lower fixed ring are sequentially connected, the upper ring sleeve is axially connected with the middle ring sleeve, a reduction gearbox connected with a motor is arranged between the middle ring sleeve and the upper ring sleeve, the movable middle ring is connected with a reduction gear train in the reduction gearbox through an inner gear ring arranged on a gear ring sleeve in a sleeving mode, a Hall element is arranged on an upper cover plate of the reduction gearbox, and two magnets matched with the Hall element are arranged at the opposite ends of the gear ring sleeve and the upper cover plate of the reduction gearbox in a spaced mode. It can be effectively avoided that intestines are damaged due to the too large swing amplitude of a swing arm of the middle ring, a mechanical is stuck due to the overturning of the motor, and the motor is burnt down due to the too large current; the opening and closing amplitude of the prosthesis can be adjusted by a mechanism according to the feeling of human intestines; the whole device is simple in structure, small in size, light in weight and beneficial for increasing the transplanting success rate.

Description

technical field [0001] The invention relates to a technology in the field of medical devices, in particular to a position-limiting and protective anal sphincter prosthesis. Background technique [0002] Fecal incontinence is a common clinical disease, which refers to the loss of control of the anal sphincter to the excretion of feces and gas. Because of the loss of anal sphincter function, patients cannot sense the accumulation of feces in the intestine and cannot control bowel movements. [0003] The artificial anal sphincter prosthesis simulates the physiological function of the normal external anal sphincter and can control defecation, thereby treating fecal incontinence. Contents of the invention [0004] Aiming at the problems in the prior art that the material is all metal, and there is no limit protection device, it is easy to cause damage to internal organs, etc., and proposes a limit protection type anal sphincter prosthesis. [0005] The present invention is ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/08A61F2/48
CPCA61F2/08A61F2/48A61F2/482
Inventor 颜国正鲁姗姜萍萍吴浩靳文天周泽润王志武刘大生
Owner SHANGHAI JIAO TONG UNIV
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