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Expandable stent delivery system with outer sheath

  • US 10,278,838 B2
  • Filed: 04/28/2014
  • Issued: 05/07/2019
  • Est. Priority Date: 01/15/2008
  • Status: Active Grant
First Claim
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1. A stent delivery catheter having an outer surface, the stent delivery catheter comprising:

  • a tube having a proximal end, a distal end, and a length measured from the proximal end to the distal end;

    a sheath extending along a majority of the length of the tube, the sheath defined by a continuous circumferential wall at a distal end thereof;

    the tube extending through a lumen of the sheath and longitudinally moveable relative thereto;

    an expansion member secured to the tube;

    a stent positioned around and in direct contact with the expansion member in an unexpanded configuration; and

    a control assembly for actuating expansion of the expansion member;

    wherein;

    the distal end of the sheath abuts a proximal end of the stent forming a continuous surface, the continuous surface forming a part of the outer surface of the stent delivery catheter, wherein the continuous surface is at a radially outermost extent of the stent delivery catheter during advancement of the stent delivery catheter through a body lumen, wherein an inner diameter of the distal end of the sheath is less than an outer diameter of the stent in the unexpanded configuration.

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