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Protective coating for a stent with intermediate radiopaque coating

  • US 6,174,329 B1
  • Filed: 08/22/1996
  • Issued: 01/16/2001
  • Est. Priority Date: 08/22/1996
  • Status: Expired due to Term
First Claim
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1. A stent for implanting in a body lumen, comprising:

  • an elongated tubular body being a substantially radiolucent first metal;

    a radiopaque layer of a second metal different from the first metal covering at least a portion of the elongated tubular body; and

    a protective layer covering the elongated tubular body and radiopaque layer, the protective layer having a thickness effective to reduce the likelihood of galvanic corrosion between the elongated tubular body and the radiopaque layer and to protect the layers from mishandling;

    wherein the protective layer includes a polymeric or a ceramic material.

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