Vascular prostheses composed of polytetrafluoroethylene

Details Vascular prostheses composed of polytetrafluoroethylene Vascular prostheses composed of polytetrafluoroethylene

A - Human Necessities

61

L

3/121, 18/795

A61L 27/16 (2006.01) A61F 2/06 (2006.01) B29C 47/00 (2006.01)

Patent

CA 1081403

ABSTRACT OF THE DISCLOSURE A vascular prosthesis comprising a tubing of porous polytetrafluoroethylene, the polytetrafluoroethylene tubing having a fibrous structure of notes and fibers connecting the nodes together and having a composite structure in which the fibrous structure at the inside surface of the tubing is finer than the fibrous structure at the outside surface of the tubing. - 1 -

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