Low profile, durable, reinforced eptfe composite graft

Details Low profile, durable, reinforced eptfe composite graft Low profile, durable, reinforced eptfe composite graft

A - Human Necessities

61

F

A61F 2/06 (2006.01)

Patent

CA 2601216

A composite graft (10) having a first seamless tubular layer (22) including biocompatible first polymeric material and having a luminal surface and an exterior surface; a biocompatible reinforcing member (24) arranged in a pattern to define a second tubular layer (20), the second tubular layer (20) being disposed over the exterior surface of the first tubular layer (22); and a third seamless tubular layer (18) including biocompatible second polymeric material and having a luminal surface and an exterior surface. The luminal surface of the third tubular layer (18) is securably disposed over the second tubular layer (20) and over the first tubular layer (22). The tubular layers (18, 20, 22) define a wall of the graft (10) having a wall thickness of less than 0.1 mm. Desirably, the graft wall thickness is less than 0.05 mm.

L~invention concerne un greffon composite (10) ayant une première couche tubulaire sans couture (22) englobant un premier matériau polymérique biocompatible et ayant une surface luminaire et une surface extérieure ; un élément de renfort biocompatible (24) disposé dans un motif pour définir une seconde couche tubulaire (20), la seconde couche tubulaire (20) recouvrant la surface extérieure de la première couche tubulaire (22) ; et une troisième couche tubulaire sans couture (18) englobant un second matériau polymérique biocompatible et ayant une surface luminaire et une surface extérieure. La surface luminaire de la troisième couche tubulaire (18) est fixée solidement au-dessus de la seconde couche tubulaire (20) et au-dessus de la première couche tubulaire (22). Les couches tubulaires (18, 20, 22) définissent une paroi du greffon (10) ayant une épaisseur inférieure à 0,1 mm. De préférence, l~épaisseur de paroi du greffon est inférieure à 0,05 mm.

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