Composite tubular prostheses

Details Composite tubular prostheses Composite tubular prostheses

A - Human Necessities

61

F

A61F 2/82 (2006.01) A61F 2/86 (2006.01)

Patent

CA 2429619

A tubular implantable prosthesis is formed of porous expanded polytetrafluoroethylene. The tubular prosthesis includes a substantially continuous ePTFE tubular first body and perimetrically non-continuous second tubular body. A circumferentially deformable support structure is interposed between the inner and outer tubular bodies. The second tubular body is formed of a plurality of elongate PTFE strips. The strips are secured to the first body and arranged longitudinally in a non-overlapping relationship. The prosthesis provides for both axial and radial compliance.

L'invention concerne une prosthèse tubulaire implantable formée de polytétrafluoroéthylène expansé poreux. Ladite prosthèse tubulaire comprend un premier corps tubulaire en polytétrafluoroéthylène sensiblement continu, et un second corps tubulaire non continu en périphérie. Une structure de support circulairement déformable est interposée entre les corps tubulaires intérieur et extérieur. Le second corps tubulaire est formé d'une pluralité de bandes de polytétrafluoroéthylène allongées. Ces bandes sont fixées au premier corps et agencées longitudinalement selon une relation de non chevauchement. La prothèse possède à la fois une compliance axiale et radiale.

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