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Stent delivery under direct visualization

  • US 8,858,609 B2
  • Filed: 02/06/2009
  • Issued: 10/14/2014
  • Est. Priority Date: 02/07/2008
  • Status: Active Grant
First Claim
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1. A method of deploying a stent under direct visualization, comprising:

  • intravascularly advancing a reconfigurable hood structure having a distal end in a low-profile configuration into proximity to a vessel opening;

    reconfiguring the hood structure into a deployed configuration which defines an open area bounded at least in part by the hood structure and by a membrane extending across the hood structure distal end, wherein the open area is in fluid communication with an environment external to the hood structure via an aperture in the membrane;

    positioning the open area over the vessel opening;

    purging blood from the open area by introducing a clearing fluid through the open area of the hood structure and into the environment;

    positioning a stent through the open area into proximity to a lesion along the vessel while visualizing the stent through the clearing fluid; and

    expanding the stent to contact the lesion along the vessel.

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