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Stent deployment catheter with collapsible sheath

  • US 5,534,007 A
  • Filed: 05/18/1995
  • Issued: 07/09/1996
  • Est. Priority Date: 05/18/1995
  • Status: Expired due to Term
First Claim
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1. A stent delivery system comprising:

  • a catheter with a distal end and a proximal end;

    a stent concentrically arranged around the catheter near the distal end;

    a proximal outer sheath covering a portion of the catheter, wherein at least a portion of the distal end of the catheter is left exposed by the proximal outer sheath;

    a retractable distal sheath surrounding at least a portion of the stent;

    a pull back means having a distal end connected to the retractable distal sheath for retraction of the retractable distal sheath, anda collapsible sheath concentrically arranged around the catheter, attached to the proximal outer sheath and located between the retractable distal sheath and the proximal outer sheath;

    whereby when the pull back means is retracted proximally the distal sheath is retracted, causing the collapsible sheath to collapse and freeing the stent for delivery.

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