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Drug-eluting stent cover and method of use

  • US 7,416,558 B2
  • Filed: 08/01/2006
  • Issued: 08/26/2008
  • Est. Priority Date: 12/30/2002
  • Status: Expired due to Fees
First Claim
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1. A stent system for delivery of a therapeutic agent in a body lumen, comprising:

  • a stent configured to contact the wall of the body lumen to maintain the patency of the lumen; and

    a stent cover, the stent cover defining a delivery sheath fabricated from a mesh and placed over the stent, wherein the mesh has a random configuration, wherein the delivery sheath contains at least one therapeutic agent in sufficient quantities for the release thereof at the treatment site, at least a portion of the mesh being configured to neck down in response to a radial outward directed force due to radial expansion of the stent, wherein the therapeutic agent loading range is about 30 to 60 percent by weight.

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