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Temporary stenting catheter with one-piece expandable segment

  • US 5,456,667 A
  • Filed: 05/20/1993
  • Issued: 10/10/1995
  • Est. Priority Date: 05/20/1993
  • Status: Expired due to Term
First Claim
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1. An intravascular catheter for maintaining the patency of an arterial vasculature for an extended period, the catheter comprising:

  • a) a catheter body having a proximal end and a distal end, said catheter body also having a first inner lumen and a second inner lumen extending therethrough from a proximal guidewire port to a distal guidewire port which is adapted to receive a guidewire therein;

    b) an expandable region having a proximal end and a distal end, said expandable region formed from said distal end of said catheter body in a one-piece configuration, said distal end of said expandable region having a passageway for the passage of said guidewire therethrough;

    c) a flexible tubular guide element extending through said expandable region and having an interior in communication with said second inner lumen of said catheter body and adapted to receive said guidewire therein; and

    d) a control wire disposed within said first inner lumen of said catheter body having a distal end attached to said distal end of said expandable region and having means on said proximal end of said catheter body to move said control wire axially for adjusting the axial distance between said proximal and distal ends of said expandable region thereby adjusting the radial dimension of said expandable region; and

    e) said expandable region comprises a continuation of the catheter body having voids formed therein.

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