Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Method of manufacturing prosthetic device
Patent
1997-11-04
2000-06-27
Isabella, David J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Method of manufacturing prosthetic device
623 132, 623 149, 600 36, A61F 206
Patent
active
060801980
ABSTRACT:
An implantable microporous ePTFE tubular vascular graft exhibits long-term patency, superior radial tensile strength, reduction in tear propagation, and increases in suture retention strength and crush resistance. The graft includes an ePTFE tubular structure having a preselected microporous structure. The tubular structure is wrapped externally with a PTFE yarn in a helical fashion. The helical wrap of yarn is bonded to the exterior surface of the tubular structure by application of heat or heat in combination with force to form a composite structure which substantially maintains the porosity of the underlying tubular structure while increasing the suture retention strength, radial tensile strength, crush resistance, and tear propagation resistance.
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Dormier Edward J.
Lentz David J.
Popadiuk Nick
Schmitt Peter
Zdrahala Richard J.
Isabella David J.
Meadox Medicals Inc.
Nguyen Tram A.
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