Device for providing full protection to a stent

Details Device for providing full protection to a stent Device for providing full protection to a stent

A - Human Necessities

61

F

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

Patent

CA 2482241

A catheter (10) comprises a catheter shaft (18), at least a portion of which defines a medical device receiving region (22), and at least one sleeve (12, 14). The at least one sleeve comprises a tubular member (50, 51) constructed and arranged to transition between an extended state and a retracted state. The tubular member has a first portion being engaged to a portion of the catheter shaft adjacent to the medical device receiving region. In the extended state a second portion is constructed and arranged to at least partially overlay the medical device receiving region. In the retraced state the second portion is removed from about the medical device receiving region. At least one of the first portion and the second portion of the tubular member are at least partially constructed from a shape memory material.

Selon l'invention, un cathéter (10) comprend une tige de cathéter (18), au moins une partie de laquelle définit une région de réception de dispositif médical (22) et au moins un manchon (12, 14). Le ou les manchons comprennent un élément tubulaire (50, 51) construit et placé de manière à assurer la transition entre un état déployé et un état rétracté. L'élément tubulaire présente une première partie en contact avec une partie de la tige de cathéter adjacente à la région de réception de dispositif médical. Dans l'état déployé, une seconde partie est construite et placée afin d'au moins en partie recouvrir la région de réception de dispositif médical. Dans l'état rétracté, la seconde partie est retirée par rapport à la région de réception de dispositif médical. La première partie et/ou la seconde partie de l'élément tubulaire sont au moins en partie construites à partir d'un matériau à mémoire de forme.

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