Angioplasty apparatus facilitating rapid exchanges

  • US 5,451,233 A
  • Filed: 03/09/1994
  • Issued: 09/19/1995
  • Est. Priority Date: 04/15/1986
  • Status: Expired due to Term
First Claim
Patent Images

1. An elongated intravascular assembly for performing a procedure at a location within a human patient'"'"'s coronary artery including a guidewire and a catheter which is adapted for rapid exchange over the guidewire without the utilization of an exchange wire or an extension wire, the assembly comprising:

  • a) an elongated catheter with a catheter shaft which has proximal and distal ends, which is configured for percutaneous introduction into and advancement within the patient'"'"'s vasculature, which is sufficiently long to be advanced through the patient'"'"'s femoral artery and into the patient'"'"'s coronary artery and which has,a distal shaft section which is configured for advancement within the patient'"'"'s coronary artery,a distal guidewire opening in the distal end of the catheter shaft,a proximal guidewire opening spaced a relatively short distance proximally from the distal guidewire opening and a relatively long distance from the proximal end of the catheter shaft,an inner lumen which extends between the distal guidewire opening and the proximal guidewire opening and which is configured to slidably receive a guidewire therein, anda proximal shaft section much longer than the distal shaft section;

    b) means on the distal shaft section to perform an intravascular procedure which is spaced closer to the distal guidewire opening than the proximal guidewire opening; and

    c) a guidewire which is longer than the catheter to extend out of the distal end of the catheter into the patient'"'"'s coronary artery beyond the location therein where the procedure is to be performed and which is slidably disposed within the inner lumen extending between the distal guidewire opening and the proximal guidewire opening.

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