Reinforced vascular graft and method of making same
First Claim
Patent Images
1. A flexible, monolithic, polymer tube, comprising:
- a microporous expanded polytetrafluoroethylene tubular member having a microstructure of nodes interconnected by fibrils and having an inner wall diameter and an outer wall diameter, andat least one microporous expanded polytetrafluoroethylene external rib member projecting outwardly from the outer wall diameter, the at least one expanded polytetrafluoroethylene external rib member being integral with the microporous expanded polytetrafluoroethylene tubular member, said microporous expanded polytetrafluoroethylene tubular member and said at least one expanded polytetrafluoroethylene external rib member having substantially equal porosities.
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Abstract
A microporous reinforced expanded PTFE vascular graft in which the reinforcing structure is substantially identical in porosity to the body of the graft. The graft is characterized by a microporous expanded PTFE tubular graft wall and integral and monolithic expanded PTFE rib structures with a porosity or density substantially identical to that of the tubular graft wall.
365 Citations
18 Claims
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1. A flexible, monolithic, polymer tube, comprising:
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a microporous expanded polytetrafluoroethylene tubular member having a microstructure of nodes interconnected by fibrils and having an inner wall diameter and an outer wall diameter, and at least one microporous expanded polytetrafluoroethylene external rib member projecting outwardly from the outer wall diameter, the at least one expanded polytetrafluoroethylene external rib member being integral with the microporous expanded polytetrafluoroethylene tubular member, said microporous expanded polytetrafluoroethylene tubular member and said at least one expanded polytetrafluoroethylene external rib member having substantially equal porosities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tubular vascular graft, comprising:
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a microporous tubular member having an inner wall surface and an outer wall surface and made of a biocompatible implantable microporous material, and at least one rib member being an integral part of, monolithic with and projecting outwardly along a longitudinal axis of the outer wall surface of the microporous tubular member, whereby microporous tubular member and the at least one rib member are made of the same biocompatible implantable microporous material and have substantially equal porosities. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification