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Barriers for polymer-coated implantable medical devices and methods for making the same

  • US 6,953,560 B1
  • Filed: 10/03/2003
  • Issued: 10/11/2005
  • Est. Priority Date: 09/28/2000
  • Status: Expired due to Fees
First Claim
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1. An implantable medical device comprising:

  • a substrate;

    a polymeric coating including a therapeutic agent supported by the substrate, wherein the polymeric coating includes a mixture of poly(butyl methacrylate) and poly(ethylene co-vinyl acetate) and the therapeutic agent includes rapamycin; and

    a barrier layer over at least a portion of the polymeric coating, wherein the barrier reduces the rate of release of rapamycin.

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