Method of preparing a vascular graft prosthesis

Details Method of preparing a vascular graft prosthesis Method of preparing a vascular graft prosthesis

1985-04-26

1987-03-03

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With subsequent cutting, grooving, breaking, or comminuting

264119, 264127, 264154, 2642356, 264291, B29C 5522

Patent

active

046474161

ABSTRACT:
A ribbed, porous tube suitable for use as a vascular graft prosthesis is prepared by scoring a stretched or unstretched tube of PTFE, stretching the tube at 200.degree.-320.degree. C. to develop the desired porosity, and heat setting the scored, stretched tube at 327.degree.-450.degree. C. while restraining the tube from axial shrinkage.

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