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Process method for attaching radio opaque markers to shape memory stent

  • US 7,243,408 B2
  • Filed: 02/09/2004
  • Issued: 07/17/2007
  • Est. Priority Date: 02/09/2004
  • Status: Expired due to Fees
First Claim
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1. A process comprising the steps of:

  • a) providing a precursor for an implantable medical device, at least a portion of the precursor made of a shape memory material, the shape memory material having a receptacle for receiving a marker therein, the shape memory material having an austenitic and a martensitic phase, the receptacle having a first shape when there is no marker therein and the shape memory material is in the martensitic phase;

    b) enlarging the receptacle while the shape memory material is in the martensitic phase;

    c) subsequently inserting a marker in the receptacle while the shape memory material is in the martensitic phase, the receptacle having a second shape after the marker is inserted into the receptacle, the second shape the same as the first shape; and

    thereafterd) transforming the precursor to the austenitic phase.

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