Anastomotic device and methods for placement

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/04 (2006.01) A61B 17/11 (2006.01) A61B 17/00 (2006.01) A61B 17/064 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2383608

Anastomotic methods and devices for placing a target vessel in fluid communication with a target vessel. A conduit (10) includes an attachment portion (12) adapted to be secured to a target vessel in fluid communication with the lumen of the vessel. The target vessel wall is sandwiched between first and second components (14, 16) of the attachment portion (12) to provide both a secure and sealed connection. One component (14) is placed in the vessel lumen against the interior surface of the wall and has an outlet that directs blood into the target vessel. This component (14) is elongated, e.g., elliptical or rectangular, such that a minimum amount of material is present at the outlet. This results in the outlet having a diameter that substantially maintains much of the cross-sectional area of the native target vessel. The attachment portion does not significantly occlude the target vessel lumen, is secured to the vessel wall in non-penetrating fashion.

L'invention concerne des dispositifs et des procédés d'anastomose destinés à mettre en communication fluidique un vaisseau cible avec un autre vaisseau cible. Un conduit (10) comprend une partie (12) de fixation conçue pour être assujettie à un vaisseau cible en communication fluidique avec la lumière du vaisseau. Le vaisseau cible est pris en sandwich entre un premier et un second composant (14, 16) de la partie (12) de fixation, de manière à assurer une connexion sûre et étanche. L'un des composants (14), placé dans la lumière du vaisseau contre la surface intérieure de la paroi, comporte un orifice de sortie qui permet de diriger le sang vers l'intérieur du vaisseau cible. Ce composant (14) est de forme allongée, notamment elliptique ou rectangulaire, de manière qu'une quantité minimale de matière soit présente au niveau de l'orifice de sortie. Par conséquent, l'orifice de sortie a un diamètre maintenant sensiblement une partie non négligeable de la section transversale du vaisseau cible natif. La partie de fixation, qui n'obture pas la lumière du vaisseau cible de manière trop importante, est assujettie à la paroi du vaisseau de manière non pénétrante.

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