Apparatus and methods for delivery of intraluminal prostheses

A - Human Necessities – 61 – F

Patent

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A61F 2/06 (2006.01)

Patent

CA 2397978

An apparatus and method for intraluminal delivery and deployment of an expandable prosthesis at a site within a body canal is provided. The apparatus comprises an elongated sleeve and an outer shaft disposed within the elongated sleeve and movable relative to the sleeve. A securing member is disposed on a distal area of the outer shaft. The expandable prosthesis is housed within a distal area of the elongated sleeve, and a distal area of the prosthesis is secured to the outer shaft by the securing member. The stent is deployed by displacing the sleeve in a proximal direction relative to the outer shaft to expose the stent and by releasing the stent from the securing member. If necessary, the stent can be repositioned prior to releasing the stent from the securing member.

L'invention concerne un appareil et une méthode destinée à l'insertion intraluminale et au déploiement d'une prothèse extensible au niveau d'un site se trouvant à l'intérieur d'un canal du corps. Cet appareil comprend une gaine allongée ainsi qu'un arbre externe disposé à l'intérieur de cette gaine allongée et mobile par rapport à ladite gaine. Un élément de fixation est disposé sur une zone distale de l'arbre externe. Cette prothèse extensible est logée dans une zone distale de la gaine allongée, une zone distale de la prothèse étant fixée à l'arbre externe par l'élément de fixation. Un stent est déployé par déplacement de la gaine dans un sens proximal par rapport à l'arbre externe, d'où son exposition, et par libération du stent de l'élément de fixation. Si nécessaire, ce stent peut être replacé avant sa libération de l'élément de fixation.

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