Metallic implantable grafts and method of making same

Details Metallic implantable grafts and method of making same Metallic implantable grafts and method of making same

A - Human Necessities

61

F

A61F 2/04 (2006.01) A61F 2/02 (2006.01)

Patent

CA 2525094

Implantable medical grafts fabricated of metallic or pseudometallic films of biocompatible materials having a plurality of microperforations passing through the film in a pattern that imparts fabric-like qualities to the graft or permits the geometric deformation of the graft. The implantable graft is preferably fabricated by vacuum deposition of metallic and/or pseudometallic materials into their single or multi-layered structures with the plurality of microperforations either being formed during deposition or after deposition by selective removal of sections of the deposited film. The implantable medical grafts are suitable for use as endoluminal or surgical grafts and may be used as vascular grafts, stent-grafts, skin grafts, shunts, bone grafts, surgical patches, non-vascular conduits, valvular leaflets, filters, occlusion membranes, artificial sphincters, tendons and ligaments.

L'invention concerne des greffons médicaux implantables, fabriqués à partir de films de matériaux métalliques ou pseudo-métalliques biocompatibles percés d'une pluralité de microperforations présentant une configuration qui confère au greffon des qualités similaires à celles d'un tissu ou permet d'imprimer au greffon une déformation géométrique. Le greffon implantable est fabriqué, de préférence, par déposition sous vide de matériaux métalliques et/ou pseudo-métalliques dans leurs structures monocouches ou multicouches, ladite pluralité de microperforations étant formée soit au cours de la déposition soit après la déposition, par retrait sélectif de sections du film déposé. Les greffons médicaux implantables de l'invention conviennent comme greffons endoluminaux ou chirurgicaux et peuvent être utilisés comme greffons vasculaires, greffons-tuteurs, greffons cutanés, shunts, greffons osseux, pièces chirurgicales, conduits non vasculaires, feuillets valvulaires, filtres, membranes d'occlusion, sphincters artificiels, tendons ou ligaments.

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