Stent delivery system having stent securement apparatus

A - Human Necessities – 61 – F

Patent

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A61F 2/04 (2006.01) A61F 2/06 (2006.01) A61M 25/10 (2006.01)

Patent

CA 2263492

A system/assembly for delivery and deployment of an inflation expandable stent within a vessel, comprising a catheter having proximal and distal ends; a scent, inflation expandable from a delivery diameter to a deployment diameter, such that the delivery diameter is reduced from the deployment diameter for conforming the stent to the catheter, such that the stent, in its delivery diameter, is coaxially mounted on the catheter near the catheter distal end; an expandable inflation means coaxially mounted on the catheter axially within the stent, for expansion of the stent from the delivery diameter to the deployment diameter upon application of fluid deployment pressure to the inflation means; and a securement component coaxially mounted on the catheter, axially within the expandable inflation means, the securement component designed and adapted to provide a securement pressure to the stent in the delivery diameter to maintain the stent in position on the catheter during delivery to the deployment site.

Système/ensemble permettant d'acheminer et de déployer un stent dilatable par gonflage dans un vaisseau, qui comporte un cathéter ayant des extrémités distale et proximale; un stent dilatable par gonflage d'un diamètre d'acheminement à un diamètre de déploiement, le diamètre d'acheminement étant réduit par rapport au diamètre de déploiement afin de faire correspondre le stent au cathéter et le stent, à son diamètre d'acheminement, étant monté coaxialement sur le cathéter près de l'extrémité distale dudit cathéter; un dispositif dilatable par gonflage monté coaxialement sur le cathéter et axialement dans le stent, en vue de la dilatation dudit stent de son diamètre d'acheminement à son diamètre de déploiement sous l'effet de l'application d'une pression de fluide de déploiement au dispositif dilatable; et un élément d'arrimage monté coaxialement sur le cathéter et axialement à l'intérieur du dispositif dilatable par gonflage, ledit élément d'arrimage étant conçu et adapté pour fournir une pression d'arrimage au stent à son diamètre d'acheminement afin de maintenir ledit stent en position sur le cathéter pendant l'acheminement jusqu'au site de déploiement.

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