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Stents and methods for preparing stents from wires having hydrogel coating layers thereon

  • US 7,442,205 B2
  • Filed: 07/13/2005
  • Issued: 10/28/2008
  • Est. Priority Date: 11/27/2000
  • Status: Expired due to Fees
First Claim
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1. A radially expandable stent comprising a wire having a hydrogel coating layer thereon, wherein the stent is preparable by a method comprising:

  • providing a metal wire;

    applying to the wire a solution that includes a solvent and a water soluble polymer in the solvent;

    evaporating the solvent to provide a polymeric coating on the wire;

    crosslinking the polymeric coating to provide a hydrogel coating layer on the wire; and

    fabricating the coated wire into a cylindrical, radially expandable stent body, wherein the hydrogel coating layer is swollen with an aqueous fluid prior to fabricating the coated wire into a stent.

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