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Rapid exchange catheter

  • US 5,667,521 A
  • Filed: 01/19/1996
  • Issued: 09/16/1997
  • Est. Priority Date: 11/12/1992
  • Status: Expired due to Fees
First Claim
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1. A catheter balloon and distal tip comprising:

  • a one piece tubular member having a proximal and distal end, the tubular member comprising a balloon, a distal end of reduced diameter and a distal tip of expanded diameter;

    the balloon is formed in the proximal end of the tubular member, the balloon having a proximal end and a distal end;

    a core wire extending longitudinally through the balloon;

    the balloon defining an inflation lumen;

    the tubular member decreasing in diameter at the distal end of the balloon to form the distal end of reduced diameter, such that the tubular member makes contact with the core wire, the distal end of reduced diameter having a proximal end and a distal end, the balloon inflation lumen ending proximal to the proximal end of the distal end of reduced diameter;

    the tubular member having the distal tip of expanded diameter distal to the distal end of reduced diameter, the distal tip is formed from the tubular member, the distal tip having a proximal end and a distal end, the distal end of the distal end of reduced diameter being contiguous with the proximal end of the distal tip, the distal tip defining a guidewire lumen; and

    a skive being cut in the proximal end of the distal tip to form a proximal port for the guidewire lumen, the guidewire lumen being sized to receive a guidewire.

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