Endoprosthesis delivery system with stent holder

Details Endoprosthesis delivery system with stent holder Endoprosthesis delivery system with stent holder

A - Human Necessities

61

F

A61F 2/84 (2006.01)

Patent

CA 2654703

A device, such as a catheter, for intraluminally delivering a distensible stent (28) includes a first elongate tubular member (12) having a proximal end (16) and a distal end (18); a band (24) circumf erentially disposed over at least a circumferential portion of the first tubular member (12) at the proximal end (16), the band (24) having at least one projection (26) for releasably engaging a portion of a radially distensible stent (28); and a second elongate tubular member (14) slidably disposed over the first tubular member (12) and the band (24). Desirably, the at least one projection (26) is a low-profile, lobate-shaped projection. The band may include two opposed projections, where the two opposed projections may be circumf erentially disposed at about 180- from one and the other. Desirably, the band includes a metal, for example, stainless steel.

La présente invention concerne un dispositif, tel qu'un cathéter, permettant d'acheminer de façon intraluminale une endoprothèse flexible qui comprend un premier membre tubulaire allongé à extrémité proximale et à extrémité distale ; une bande placée sur au moins une portion de la circonférence du premier membre tubulaire au niveau de l'extrémité proximale, la bande ayant au moins une projection pour entrer de manière détachable dans une portion de prothèse flexible dans le sens radial ; ainsi qu'un second membre tubulaire allongé placé par glissement sur le premier membre tubulaire et sur la bande. Il est souhaitable que la projection au moins une, soit de configuration plate et de forme lobée. La bande pourra comprendre deux projections opposées, qui peuvent être disposées sur la circonférence à 180° l'une de l'autre. Il est souhaitable que la bande comprenne une portion métallique, par exemple de l'acier inoxydable.

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