Prosthetic sphincter having a diametric occlusion geometry

Details Prosthetic sphincter having a diametric occlusion geometry Prosthetic sphincter having a diametric occlusion geometry

1984-10-02

1986-04-29

Coven, Edward M.

Surgery

Truss

Perineal

128DIG25, 128325, A61B 1900

Patent

active

045849900

ABSTRACT:
An elastofluidic sphincter comprising a prosthetic device for surgical implantation around a patient's lumen, such as the urethra. The sphincter includes an occlusion cuff which is positioned to surround and engage the patient's lumen for occluding or relaxing the lumen to achieve coaptation for the treatment of incontinence. The occlusion cuff includes hollow, expandable patient activated and physician controlled chambers arranged to generate diametric occlusive pressures for efficiently occluding the lumen with precise and minimal pressure, so as to minimize the interruption of circulatory blood flow. Expansion of the patient and physician chambers is independently and selectively controlled by the patient and physician, respectively, whereby to precisely and continously adjust the occlusive pressures applied from the occlusion cuff to the lumen. The sphincter includes a pressure relief ring which may be manually operated, while in situ, to cause the patient activated chamber to shrink, whereby to reduce the occlusive pressures being applied to the lumen for maximizing the movement of material and circulatory blood flow therethrough.

REFERENCES:
patent: 2756753 (1956-07-01), Means
patent: 3730186 (1973-05-01), Edmunds et al.
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patent: 4222377 (1980-09-01), Burton
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patent: 4399809 (1983-08-01), Baro et al.
patent: 4419985 (1983-12-01), Trick
patent: 4428365 (1984-01-01), Hakky

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