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Method and device for treating and enlarging body lumens

  • US 5,342,348 A
  • Filed: 12/04/1992
  • Issued: 08/30/1994
  • Est. Priority Date: 12/04/1992
  • Status: Expired due to Term
First Claim
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1. An endovascular stent comprising:

  • a tubular structure having an initial diameter, said structure being composed of a first material expandable from the initial diameter to an enlarged diameter;

    a delivery matrix including at least one filament which is interlaced with the tubular structure and expandable therewith from said initial diameter to said enlarged diameter; and

    a bioactive substance releasably contained within the filament of the delivery matrix, wherein the filament is composed of a second material which is porous and/or which will degrade over time in a vascular environment to release the bioactive substance.

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