A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/06 (2006.01) A61L 27/16 (2006.01) A61L 27/50 (2006.01) A61L 27/56 (2006.01)
Patent
CA 2243951
An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
La présente invention concerne un greffon vasculaire tubulaire en ePTFE (polytétrafluor-éthylène expansé) microporeux implantable. Ce greffon fait preuve de perméabilité durable, de résistance supérieure à la traction radiale et de résistance à l'élongation de l'orifice de suture. Ce greffon est constitué d'un premier tube en ePTFE et d'un second tube en ePTFE disposé sur la circonférence du premier tube. Le premier tube en ePTFE fait preuve d'une porosité suffisante pour favoriser la croissance et la cicatrisation tissulaire par endothélialisation cellulaire. Le second tube en ePTFE fait preuve d'une résistance radiale accrue supérieure à la résistance à la traction radiale du premier tube.
Dormier Edward J.
Henderson Jamie
Lentz David J.
Zdrahala Richard J.
Meadox Medicals Inc.
Piasetzki Nenniger Kvas Llp
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