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Apparatus and method for placement and implantation of a stent

  • US 5,192,297 A
  • Filed: 12/31/1991
  • Issued: 03/09/1993
  • Est. Priority Date: 12/31/1991
  • Status: Expired due to Term
First Claim
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1. Apparatus for placement and implantation of a stent, the apparatus comprising in combination:

  • a catheter having proximal and distal ends,an elongate cylindrical outer sheath enclosing a distal portion of the catheter,a balloon on the catheter being adapted for inflation and deflation in site,a radially self-expandable stent of generally cylindrical configuration carried coaxially on the catheter in a distal position with respect to the balloon and enclosed within the sheath, andmeans for distally ejecting the stent from the sheath, whereby the stent may be positioned at a selected implant site by placement of the distal end of the catheter and ejected out of the sheath in a distal direction to position it at the selected site followed by insertion of the balloon coaxially in the stent and expansion thereof to implant the stent at the selected site.

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