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STENT DEPLOYMENT SYSTEM INCLUDING MULTIPLE STENT-ENGAGING ELEMENTS

  • US 20170290691A1
  • Filed: 04/12/2016
  • Published: 10/12/2017
  • Est. Priority Date: 04/12/2016
  • Status: Abandoned Application
First Claim
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1. A method of delivering a self-expanding stent at a treatment site using a stent delivery system, the method comprising:

  • advancing the stent delivery system proximate to the treatment site, the stent delivery system comprising;

    an elongate outer member defining an outer member lumen;

    a pusher assembly in the outer member lumen, the pusher assembly comprising a plurality of stent-engaging elements, the plurality of stent-engaging elements comprising a distal stent-engaging element, at least one intermediate stent-engaging element, and a proximal stent-engaging element, the plurality of stent-engaging elements being positioned coaxially relative to each other, each of the plurality of stent-engaging elements being configured to move independently relative to the other stent-engaging elements; and

    the self-expanding stent radially between the elongate outer member and the pusher assembly in a radially compressed configuration;

    advancing the plurality of stent-engaging elements until the plurality of stent engaging elements are positioned at a distal portion of the outer lumen, wherein advancing the plurality of stent-engaging elements comprises;

    distally driving each of the at least one intermediate stent-engaging elements and the proximal stent-engaging element, while not distally driving any of the plurality of stent-engaging elements distal to the stent-engaging element being driven.

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