Finger lock type artificial anal sphincter prosthesis

Abstract

The invention discloses a finger lock type artificial anal sphincter prosthesis in the field of prostheses. The artificial anal sphincter prosthesis comprises a plurality of vertical knuckle mechanisms and a winding-unwinding execution mechanism, wherein each knuckle mechanism is of an annular structure and comprises a plurality of knuckle parts rotationally connected in sequence; the winding-unwinding execution mechanism comprises a drive rope, two winding wheels and a micro-motor; the drive rope penetrates the knuckle parts of the knuckle mechanism in sequence, one end of the drive rope is fixed to the knuckle part at the tail end, and the other end of the drive rope penetrates round holes formed in the winding wheels and is fixed to the winding wheels; the two winding wheels are connected with the micro-motor; the drive rope is wound and unwound through the winding wheels, and the knuckle parts are driven to be radially shrunk or extended, so that the overall inner diameter of the knuckle mechanism can be changed. The artificial anal sphincter prosthesis is easy to miniaturize, light in weight, convenient to implant and high in success rate of prosthesis implantation.

Description

technical field [0001] The invention relates to a device in the field of prostheses, in particular to a finger buckle type 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] The artificial anal sphincter prosthesis can effectively control defecation, help patients regain control over their own defecation, eliminate the psychological shadow caus...

AI Technical Summary

Problems solved by technology

[0004] Found through literature search to prior art: U.S. Patent No.: US7011622B2 and US8172745A1, disclose a kind of Artificial Anal Sphincter (for the treatment of fecal incontinence artificial anal sphincter), this technology is by 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. Disadvantages are: 1. The pressure regulation of the liquid capsule is easy to penetrate with the tissue fluid in the human body, resulting in the gradual increase of the liquid capsule. There was a patient in the United States who was hospitalized due to the increase of the pressure regulating ball fluid storage bag. 2. The patient must manually squeeze the control pump to drain the liquid in the clamp pouch to the fluid storage pouch, and the control pump is implanted into the scrotum (male) or labia (female). impact on life

[0005] Chinese patent document number CN102871773, open date 2013-01-16, records an electromagnetically controlled artificial anal sphincter device based on rectal sensing function. This technology consists of an electromagnetically controlled actuator, two splint transmission mechanisms and arc closure Mechanism structure, through the electromagnetic actuator pair through the transmission mechanism, let the arc-shaped closing mechanism tighten and clamp the intestinal tract, but the disadvantages of this mechanism are: 1. The shape of the actuator is triangular, not an implantable prosthesis 2. When the arc actuator is closed, due to the existence of two arc-shaped mechanisms, there must be a small circular space in the clamping state, which is not necessary. It must be able to completely clamp the intestinal tract, and whether it can effectively control bowel movements remains to be verified

[0006] In summary, although the artificial anal sphincter system is an effective solution for the treatment of severe fecal incontinence, the water bladder prosthesis cannot effectively solve the problem of interstitial fluid penetration in the human body; the electromagnetically controlled artificial anal sphincter device with rectal sensing function is ingeniously designed , but in terms of structural shape and structural design, it is difficult to apply clinically

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