Stent-graft attachment

Details Stent-graft attachment Stent-graft attachment

A - Human Necessities

61

F

A61F 2/06 (2006.01)

Patent

CA 2507841

The present invention provides an apparatus and method for attachment between intersecting stent members and a covering or graft. The attachment fixes the covering relative to selected intersections of the stent members and prevents the covering from wrinkling, crimping, or sliding during radial expansion of the stent. In a preferred embodiment, the attachment comprises a continuous filament passing through the stent covering and looping around stend members between selected intersections and knotted around the intersecting stent members at selected intersections.

Cette invention concerne un appareil et un procédé permettant de fixer des éléments d'endoprothèse qui se coupent à un revêtement ou greffon. La fixation permet de fixer le revêtement par rapport aux intersections choisies des éléments d'endoprothèse et d'empêcher le revêtement de se plisser, d'onduler ou de glisser pendant l'expansion radiale de l'endoprothèse. Dans un mode de réalisation préféré de cette invention, la fixation comprend un filament continu qui traverse le revêtement de l'endoprothèse, forme une boucle autour des éléments d'endoprothèse entre les intersections choisies et se noue autour des éléments d'endoprothèse qui se coupent au niveau des intersections choisies.

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