Stent crimping tool and method of use

A - Human Necessities – 61 – B

Patent

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A61B 19/00 (2006.01) A61F 2/06 (2006.01)

Patent

CA 2253165

A stent crimping tool for firmly and uniformly crimping a stent onto a catheter. The stent crimping tool is constructed from a base having two vertically extending spaced apart supports and a coiled tension spring affixed at one end to a shaft and at the opposite end to one of the vertical supports. When a stent is loaded onto the balloon portion of a catheter, and the stent-catheter assembly is inserted into an axial space within the coiled spring, the user can rotate the shaft to twist the coiled spring thereby constricting it, and in turn the constriction of the coiled spring uniformly crimps the stent onto the balloon catheter.

Dispositif d'insertion d'un stent destiné à implanter de façon ferme et uniforme un stent au moyen d'un cathéter. Le dispositif d'insertion d'un stent est composé d'une base ayant deux supports espacés extensibles verticalement et d'un ressort de tension enroulé fixé, à une extrémité, à une tige et, à l'autre extrémité, à l'un des supports verticaux. Lorsqu'un stent est installé sur la partie ballonnet d'un cathéter et que l'ensemble stent-cathéter est introduit dans un espace axial à l'intérieur du ressort enroulé, l'utilisateur peut faire pivoter la tige de manière à tordre le ressort enroulé et, ainsi, à le comprimer; la constriction du ressort enroulé permet en retour d'insérer de façon uniforme le stent au moyen du cathéter à ballonnet.

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