Optimized flex link for expandable stent

Details Optimized flex link for expandable stent Optimized flex link for expandable stent

A - Human Necessities

61

F

A61F 2/06 (2006.01)

Patent

CA 2579598

This invention relates generally to an expandable intraluminal medical device for use within a body passageway or duct, and more particularly to an optimized stent having flexible links (614) that minimize foreshortening during stent deployment. In one embodiment of the present invention the intraluminal prosthetic device includes a first hoop section, a second hoop section, and one or more flex members attached between the first and the second hoop section. Each flex member comprises two generally longitudinally extending curved segments (621 B) connected by a circumferentially undulating segment (619 B).

L'invention concerne généralement un dispositif médical intraluminal expansible à utiliser dans un passage ou un conduit du corps, et plus particulièrement un stent optimisé doté de liaisons souples (614) qui réduisent au minimum l'effet de raccourcissement pendant le déploiement du stent. Dans un mode de réalisation, le dispositif prothétique intraluminal comporte une première partie en arceau, une seconde partie arceau et un ou plusieurs éléments souples fixés entre la première et la deuxième partie en arceau. Chaque élément souple comporte deux segments courbés (621 B) s'étendant généralement dans le sens longitudinal reliés par un segment ondulé (619 B) sur sa circonférence.

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