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Coated vascular prosthesis and methods of manufacture and use

  • US 20030149471A1
  • Filed: 02/05/2003
  • Published: 08/07/2003
  • Est. Priority Date: 02/05/2002
  • Status: Abandoned Application
First Claim
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1. A method for making a vascular prosthesis comprising the steps of:

  • providing a crimped substrate, the substrate comprising a woven or knitted polymer fabric, the substrate having a first surface and a second surface opposite the first surface, the second surface being a blood interface surface;

    coating the first surface with a first solution, the first solution comprising a first polymer and a particulate in a first solvent;

    allowing the first solution to dry, thereby forming a first coat on the substrate;

    coating the first coat with a second solution, the second solution comprising a second polymer in a second solvent; and

    immersing the coated substrate in a third solvent to precipitate the second polymer from solution, thereby forming a porous second coat.

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