Intravascular device and method using it

A - Human Necessities – 61 – F

Patent

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A61F 2/02 (2006.01) A61F 2/01 (2006.01)

Patent

CA 2381767

An intravascular device (34) for minimally invasive deployment within a vessel includes a closed loop (4) of flexible material configured to assume a first state in which the closed loop is folded on itself and straightened to allow delivery through a minimally invasive delivery system. When deployed, the loop (4) assumes a second substantially ring-shaped state to become lodged against an inner wall (46) of the vessel. The loop (4) is preferably formed from a shape memory alloy preset to the second state and temporarily deformed to assume said first state during deployment.

L'invention concerne un dispositif intravasculaire permettant un déploiement effractif minimum dans un vaisseau. Ce dispositif comprend une boucle fermée fabriquée à partir d'une matière souple conçue pour adopter un premier état dans lequel la boucle fermée est repliée sur elle-même et redressée pour permettre l'administration au moyen d'un système d'administration à encombrement minimum. Lorsqu'elle est déployée, la boucle adopte un second état sensiblement en forme d'anneau de manière à venir se loger contre la paroi interne du vaisseau. De préférence, la boucle est fabriquée à partir d'un alliage à mémoire de forme préalablement ajusté dans le second état et provisoirement déformé de manière à adopter le premier état pendant son déploiement.

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