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RECONSTRAINABLE STENT DELIVERY SYSTEM

  • US 20120310321A1
  • Filed: 06/12/2012
  • Published: 12/06/2012
  • Est. Priority Date: 10/05/2009
  • Status: Abandoned Application
First Claim
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1. A delivery system for a self-expanding stent, said system comprises:

  • an inner member located coaxially with an outer member, said inner member and said outer member including a distal and proximal end;

    a pusher positioned at a proximal end of said inner member and coupled to said inner member;

    a slider located coaxially with said inner member and positioned within and contacting an inner diameter of said stent;

    a housing assembled on the pusher; and

    a spring element positioned within said housing,wherein before deployment of the stent, the stent is constrained within an inner diameter of said outer member,wherein after partial deployment of the stent, the stent can be reconstrained by the outer sheath and the housing moving in the proximal direction for compressing the spring element to maintain the inner member under tension, andwherein during deployment of the stent said slider can rotate about and move longitudinally along said inner member allowing said stent to move distally or rotate within said outer member as said outer member is retracted to deploy said stent.

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