Double-section type artificial anal sphincter device with constant-force clamping function

Abstract

The invention relates to a double-section type artificial anal sphincter device with constant force clamping. The device comprises an upper fixing part (6), a middle fixing part (7), a lower fixing part (8) and a plurality of constant-force mechanisms, wherein the upper fixing part (6) and the lower fixing part (8) are arranged on the same side of the middle fixing part (7) at intervals; the upper fixing part (6) is arranged above the lower fixing part (8); the upper part of the upper fixing piece (6) is riveted with the upper part of the middle fixing piece (7), and the lower part of the lower fixing piece (8) is riveted with the lower part of the middle fixing piece (7); the plurality of constant-force mechanisms are respectively positioned on the inner walls of the upper fixing piece (6), the middle fixing piece (7) and the lower fixing piece (8); and a clamping cavity for clamping the intestinal tract and is adjustable in size is formed among the plurality of constant force mechanisms. Compared with the prior art, the double-section type artificial anal sphincter device has the advantage that by applying the radial constant force, the situation of intestinal tract avascular necrosis caused by non-uniform and overlarge load applied to the intestinal tract by the artificial anal sphincter is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a double-moderated artificial anal sphincter device with constant force clamping. Background technique [0002] Anal incontinence (Fecal Incontinence, FI) is a common symptom clinically. The reason for anal incontinence is that the sphincter muscle of FI patients cannot control the discharge of feces and gas, so that the excrement flows out automatically through the anus. Conditions such as pelvic floor dysfunction, rectal cancer, trauma, maternal childbirth, and congenital anomalies can all cause anal incontinence. [0003] At present, the incidence of colorectal cancer in my country is changing from low to high. According to the statistical literature estimates in 2012, the incidence of colorectal cancer in my country has reached 172,000, surpassing that of the United States. However, postoperative colorectal cancer will lead to anal incontinence, so the patients with a...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a dual restraint artificial anal sphincter device with constant force clamping, which avoids the artificial anal sphincter exerting uneven and excessive load on the intestinal tract through the application of radial constant force. In the case of intestinal ischemia and necrosis, the problem of excrement leakage during the clamping process is solved through double restraint, which reduces the probability of intestinal tissue necrosis and infection, and improves the clamping stability and safety of the artificial sphincter in the body

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