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Modification of polymer stents with radiation

  • US 7,794,776 B1
  • Filed: 06/29/2006
  • Issued: 09/14/2010
  • Est. Priority Date: 06/29/2006
  • Status: Expired due to Fees
First Claim
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1. A method of modifying a stent comprising:

  • selecting a desired drug release rate or a degradation rate for a polymer on a stent surface; and

    exposing the stent to a dose of radiation capable of modifying the molecular weight of the polymer on the stent, wherein the dose modifies the molecular weight of the polymer to obtain the selected drug release rate or degradation rate,wherein the polymer comprises a polyester amide coating having a drug mixed or dispersed within the coating.

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