Systems and methods for supporting or occluding a...

A - Human Necessities – 61 – B

Patent

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A61B 17/12 (2006.01)

Patent

CA 2736251

Implantable devices for placement at a cavity or opening such as an aneurysm are disclosed. The implantable devices, in a deployed condi-tion, have a generally inverted U-shaped profile with a curved or angled frame-work support structure sized and configured for placement in proximity to tis-sue surrounding the opening and anchoring legs extending proximally from the framework structure sized and configured to contact the wall of a neighboring lumen at opposed locations. Occlusive and semi-occlusive membranes may be associated with the framework support structure and deployed over the open-ing to provide exclusion of the opening and flow diversion. Proximal anchor-ing segments providing additional lumen wall surface area contact for the im-plantable device following deployment may be incorporated.

La présente invention concerne des dispositifs implantables pour placement au niveau dune cavité ou dune ouverture telle quun anévrisme. Les dispositifs implantables, dans un état déployé, ont un profil généralement en forme de U inversé avec une structure de support à cadre courbé ou coudé, dimensionné et configuré pour placement à proximité du tissu entourant les pattes douverture et dancrage sétendant de manière proximale depuis la structure de cadre dimensionnées et configurées pour entrer en contact avec la paroi dune lumière voisine à des emplacements opposés. Des membranes occlusives et semi-occlusives peuvent être associées à la structure de support de cadre et déployées sur louverture pour produire lexclusion de louverture et la dérivation de la circulation. Des segments dancrage proximaux produisant un contact additionnel avec la surface de paroi de lumière pour le dispositif implantable après déploiement peuvent être incorporés.

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