Distally narrowed vascular grafts

Details Distally narrowed vascular grafts Distally narrowed vascular grafts

A - Human Necessities

61

F

A61F 2/06 (2006.01) A61B 17/11 (2006.01) A61B 19/00 (2006.01) A61F 9/01 (2006.01)

Patent

CA 2419055

Graft (10) has a first end (20) adapted for insertion into a blood receiving vessel site and a second end (30) adapted for attachment to an artery site. Graft (10) is preferably made of a material having a generally uniform thickness, and graft (10) defines a lumen (11) having the same shape as the external surface of the graft (10). In graft (10), distal end (20) defines oriface (21) and proximal end (30) defines oriface (31). The portion of the lumen (11) defined by section (23), also referred to as a ''stepped'' or a ''taper'' section, has a generally gradually decreasing diameter from a longitudinal point adjacent section (40).

L'invention concerne des greffes vasculaires et des procédés permettant d'implanter lesdites greffes vasculaires. Dans un aspect, l'invention concerne des greffes vasculaires qui présentent une extrémité distale rétrécie. Dans un autre aspect, l'invention concerne des greffes vasculaires munies de ballonnets destinés à être fixés à un vaisseau sanguin ciblé. Dans un autre aspect, l'invention concerne des connecteurs permettant de réaliser des connexions de greffe bout à bout. L'invention concerne également des procédés permettant d'implanter des greffes vasculaires et consistant à insérer l'extrémité distale d'une greffe dans le vaisseau cible afin de la disposer en aval du site d'incision ainsi que des méthodes consistant à raccourcir une greffe en enlevant une partie médiale et en connectant bout à bout les parties de greffe obtenues.

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