Bifurcated stent with flexible side portion

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/90 (2006.01)

Patent

CA 2304553

A bifurcated stent for maintaining the patency of body lumens such as coronary arteries comprising a main stent portion and a smaller diameter side stent portion having an end secured to the length of the main stent portion. The side stent portion is preferably flexible so as to be readily insertable into a side branch of a body lumen. For delivery, the bifurcated stent is mounted on a first and second catheter with the first catheter extending through the length of the main stent portion and the second catheter extending through a part of the main stent portion and then through the side stent portion. Preferably, the end of the side stent portion is secured to the main stent portion with multiple sutures around the perimeter of the end of the side stent portion. The invention also comprises the method of implanting the bifurcated stent.

L'invention porte sur une prothèse endovasculaire à deux branches permettant de maintenir la perméabilité des lumières corporelles telles que les artères coronaires et comportant une prothèse principale et une prothèse de plus petit diamètre dont une extrémité se raccorde sur la longueur de la prothèse principale et qui est de préférence flexible pour pouvoir s'introduire facilement dans une branche latérale de la lumière corporelle. Pour la mise en place, on monte la prothèse endovasculaire à deux branches sur un premier et un second cathéter, le premier traversant en longueur la prothèse principale et le second traversant partiellement la prothèse principale puis la prothèse latérale. L'extrémité de la prothèse endovasculaire latérale est de préférence fixée à la prothèse principale par de multiples sutures entourant l'extrémité de la prothèse latérale. L'invention porte également sur un procédé d'implantation de la prothèse endovasculaire à deux branches.

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