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Heparin delivery method

  • US 6,605,114 B1
  • Filed: 10/29/1999
  • Issued: 08/12/2003
  • Est. Priority Date: 04/24/1997
  • Status: Expired due to Term
First Claim
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1. A method of using an implantable support structure to transfer heparin to a specific site within a patient'"'"'s vasculature, comprising the steps of:

  • providing an implantable support structure, wherein said support structure is configured such that upon implantation in a blood vessel, such support structure has surfaces that face the vessel walls, surfaces that face the blood flow, and an upstream edge and a downstream edge;

    depositing a coating exclusively on said edges that adheres thereto and that includes functional groups that attract heparin and to which heparin bonds;

    implanting said support structure in said patient'"'"'s vasculature; and

    exposing said implanted support structure to heparinized blood so as to attract heparin thereto.

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