Apparatus and methods for positioning prostheses for...

A - Human Necessities – 61 – F

Patent

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A61F 2/06 (2006.01) A61F 11/00 (2006.01)

Patent

CA 2568731

Apparatus for delivering stents to body lumens include a flexible catheter shaft, an expandable member, a tubular prosthesis selectively movable in an axial direction over the expandable member, and a stop member disposed on the catheter shaft near the distal end of the catheter shaft for stopping the prosthesis at a deployment position on the expandable member. A variety of different stop members are provided according to various embodiments, such as stop members disposed outside the expandable member, stop members disposed inside the expandable member, movable stop members, and the like. Methods of delivering stents are also provided.

L'invention concerne un dispositif permettant de distribuer des écarteurs dans des lumens organiques, comprenant une tige de cathéter flexible, un élément extensible, une prothèse tubulaire pouvant être déplacée de manière sélective dans une direction axiale sur l'élément extensible et un élément de butée disposé sur la tige de cathéter, à proximité de l'extrémité distale de la tige de cathéter pour arrêter la prothèse en une position de déploiement sur l'élément extensible. Il est prévu une variété de différents éléments d'arrêt selon divers modes de réalisation, tels que des éléments de butée disposé en dehors de l'élément extensible, des éléments de butée disposés dans l'élément extensible, des éléments de butée mobiles et similaires. L'invention concerne également des procédés de distribution d'écarteurs.

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