Stent device and stent supplying system

A - Human Necessities – 61 – F

Patent

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Details

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

Patent

CA 2160022

A stent device which can be loaded on any balloon catheter and which permits an arbitrary stent to be employed in combination with an arbitrary catheter. That is, the present invention is directed to a stent device having a stent fitted on the outer peripheral surface of a radially dilatable and contractible tubular cartridge. The stent device is mounted on a balloon-forming portion of a balloon catheter designed for extending the outside diameter of the catheter from a contracted state to a dilated state. The balloon-forming portion is dilated in the vessel for dilating the stent along with the tubular cartridge. The balloon-forming portion and the tubular cartridge are then contracted for detaching the stent from the balloon catheter for supplying the stent within the vessel.

La présente invention concerne un dispositif pour extenseur qui peut se monter sur tout type de cathéter à ballon et qui permet d'utiliser conjointement n'importe quel type d'extenseur et n'importe quel type de cathéter. En l'occurrence, l'invention est un dispositif pour extenseur par lequel l'extenseur est monté sur la surface externe de la circonférence d'une cartouche tubulaire radialement expansible et contractable. Ledit dispositif pour extenseur se monte sur la partie formant ballon d'un cathéter à ballon permettant de dilater le diamètre externe du cathéter pour le faire passer de l'état contracté à l'état expansé, l'extenseur pouvant ainsi être dégagé du cathéter à ballon et placé à l'intérieur du vaisseau sanguin. La procédure consiste d'abord en une dilatation de la partie formant ballon dans le vaisseau sanguin, ce qui provoque l'expansion simultanée de l'extenseur et de la cartouche tubulaire, puis en une contraction de la partie formant ballon et de la cartouche tubulaire.

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