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Nonthrombogenic articles and method of preparation

  • US 4,349,467 A
  • Filed: 09/17/1979
  • Issued: 09/14/1982
  • Est. Priority Date: 01/31/1977
  • Status: Expired due to Term
First Claim
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1. In a method for reducing the thrombogenicity of a solid polymeric resin, which comprises absorbing a quaternary ammonium salt on the surface of the resin and then contacting the surface with the absorbed salt, with a solution of heparin, the improvement which comprises;

  • employing as said solution one containing a concentration of heparin within the range of from about 5 percent by weight to saturation.

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