Balloon catheter and stent deploying catheter system

Details Balloon catheter and stent deploying catheter system Balloon catheter and stent deploying catheter system

A - Human Necessities

61

M

A61M 25/10 (2006.01) A61F 2/06 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2365369

A balloon catheter with a balloon having first and second tapered sections adjacent the distal and proximal ends of the working length of the balloon, respectively, and third and fourth tapered sections adjacent the first and second tapered section, respectively. The first and second tapered sections taper at a first angle to a smaller outer diameter than the inflated outer diameter of the working length inflated within a deployment range of the balloon, and the third and fourth tapered sections taper at a second angle larger than the first angle. The balloon has expandable retention sections proximal and the distal to the working length of the balloon for inhibiting migration of a stent mounted on the balloon.

L'invention concerne un cathéter à ballonnet présentant un ballonnet ayant des première et seconde parties coniques adjacentes aux extrémités distale et proximale de la longueur de travail du ballonnet, respectivement, ainsi que des troisième et quatrième parties coniques adjacentes à la première et à la seconde parties coniques, respectivement. Les première et seconde parties coniques sont coniques à un premier angle par rapport à un diamètre extérieur plus petit que le diamètre extérieur gonflé de la longueur de travail gonflée dans une plage de déploiement du ballonnet, et les troisième et quatrième parties coniques sont coniques à un second angle supérieur au premier angle. Le ballonnet présente des parties de retenue extensibles proximale et distale par rapport à la longueur de travail du ballonnet, destinées à empêcher le déplacement d'une endoprothèse montée sur le ballonnet.

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