Prosthesis having a sleeve valve

Details Prosthesis having a sleeve valve Prosthesis having a sleeve valve

A - Human Necessities

61

F

A61F 2/04 (2006.01)

Patent

CA 2596149

Disclosed is a pressure sensitive prosthesis (10) that includes a tubular member (11) having a passageway extending therethrough and a sleeve (13) attached about one end of the tubular member, The sleeve functions as a one- way valve to permit fluid flowing through the sleeve lumen in a first, distal direction and under a first pressure, while collapsing in response to fluid flowing in a second direction when the pressure thereof exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert out of the tubular stent frame to permit belching or vomiting (fluid or materials under a third, higher pressure) .

La présente invention concerne une prothèse sensible à la pression (10) comprenant un élément tubulaire (11) à travers lequel s~étend un passage et un manchon (13) fixé autour d~une extrémité de l~élément tubulaire. Le manchon fonctionne comme une valve anti-reflux qui permet à un liquide de s~écouler à travers la lumière du manchon dans une première direction distale et sous une première pression, tout en s'affaissant lorsque le liquide circule dans une seconde direction lorsque la pression de ce dernier dépasse celle de la première direction ou pression. Un aspect de l~invention comprend une prothèse oesophagienne anti-reflux extensible dans laquelle le manchon est conçu pour s~inverser à travers le cadre du tuteur tubulaire afin de permettre l~éructation ou le vomissement (de liquides ou de matières sous une troisième pression plus élevée).

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