Stent and method for manufacturing the stent

A - Human Necessities – 61 – F

Patent

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A61F 2/06 (2006.01)

Patent

CA 2578104

A stent (1) includes a stent body having a circumference and struts disposed helically about the circumference. Each of the struts has a strut length and a ratio of a number of the struts around the circumference to the strut length is greater than 800 per inch, in particular, over 1000 per inch. A method for manufacturing a helical stent includes the steps of providing a stent body with struts disposed about the circumference thereof in turns and with bridges (6) connecting the struts in adjacent turns. The stent body is expanded and, thereafter, some of the bridges, in particular, sacrificial bridges, are removed.

L'invention concerne une endoprothèse (1) qui comprend un corps d'endoprothèse sur la circonférence duquel sont disposées des entretoises de manière hélicoïdale. Chaque entretoise possède une longueur, le rapport entre le nombre d'entretoises autour de la circonférence et la longueur de l'entretoise est supérieur à 800 par pouce, particulièrement, supérieur à 1000 par pouce. Par ailleurs, l'invention concerne un procédé de fabrication d'une endoprothèse hélicoïdale, qui consiste à mettre au point un corps d'endoprothèse pourvu d'entretoises circonférentielles sur plusieurs tours, et de relier les entretoises des tours adjacents par des ponts (6). Après déploiement du corps d'endoprothèse, certains ponts, principalement les ponts sacrificiels, sont supprimés.

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