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Noncylindrical drug eluting stent for treating vascular bifurcations

  • US 7,344,556 B2
  • Filed: 05/09/2003
  • Issued: 03/18/2008
  • Est. Priority Date: 05/30/2000
  • Status: Expired due to Fees
First Claim
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1. A method of treating a vascular bifurcation of a main coronary vessel into a first and a second branch vessels, comprising the steps of:

  • providing a delivery catheter having a stent thereon, the stent having an upstream end and a downstream end with at least one marker on the downstream end, and being self expandable to a configuration having a single central lumen in which the upstream end has a smaller dimension than the downstream end;

    positioning the catheter such that the stent is at a treatment site within the main coronary vessel with the downstream end adjacent the vascular bifurcation;

    deploying the stent in the main coronary vessel such that the stent self expands to a configuration in which the upstream end of the stent has a smaller dimension than the downstream end of the stent, and in which the downstream end communicates with both the first and the second branch vessels, wherein said deploying comprises moving a releasable restraint having a plurality of expansion limiting bands with respect to said stent; and

    eluting a drug from the stent at the treatment site.

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