Method and apparatus for implanting an endoluminal...

A - Human Necessities – 61 – M

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Details

A61M 25/10 (2006.01) A61F 2/84 (2006.01)

Patent

CA 2721570

Balloon catheters (1), and medical devices including balloon catheters, are provided that comprise a balloon assembly (5) disposed at the distal end of an elongated tubular member (6). The balloon (5), when in the inflated state, includes a body fluid lumen (30) that extends longitudinally through the balloon (5) and is open at the proximal end of the balloon and the distal end of the balloon. In some aspects, the outer surface (45) of the balloon is contiguous from the proximal end to the distal end of the balloon when the balloon is inflated. In other aspects, an endoluminal prosthesis (20), for example, a stent that can optionally include a prosthetic valve, surrounds the balloon assembly (5) and is adjacent to the outer surface (40) of the balloon (5). The balloon assembly (5) is configured to permit a fluid to pass from the first end of the balloon to the second end of the balloon when the balloon is in an inflated state. In some embodiments, the body fluid lumen (30) includes a body fluid lumen valve (36) movable between a first position and a second position. The body fluid lumen valve occludes the body fluid lumen (30) to a greater extent in the first position than in the second position.

Selon l'invention, des cathéters à ballonnet (1) et des dispositifs médicaux comprenant ceux-ci comportent un ensemble ballonnet (5) disposé à l'extrémité distale d'un élément tubulaire allongé (6). Le ballonnet (5), à l'état gonflé, comprend une lumière (30) de liquides organiques qui s'étend dans le sens de la longueur à travers le ballonnet (5) et qui est ouverte au niveau de l'extrémité proximale et de l'extrémité distale du ballonnet. Selon certains aspects, la surface externe (45) du ballonnet est contiguë depuis l'extrémité proximale à l'extrémité distale du ballonnet, lorsque celui-ci est gonflé. Selon d'autres aspects, une prothèse endoluminale (20), par exemple, un stent qui peut facultativement comprendre une valve prothétique (20), entoure l'ensemble ballonnet (5) et est adjacent à la surface externe (40) du ballonnet (5). L'ensemble ballonnet (5) est conçu pour permettre au liquide de passer de la première extrémité à la seconde extrémité du ballonnet, lorsque le ballonnet est à l'état gonflé. Dans certains modes de réalisation, la lumière (30) de liquides organiques comprend une valve (36) de lumière de liquides organiques mobile entre une première et une seconde position. La valve de la lumière de liquides organiques occlut davantage la lumière (30) de liquides organiques en première position qu'en seconde position.

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