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Balloon dilation probe

  • US 4,917,088 A
  • Filed: 01/30/1989
  • Issued: 04/17/1990
  • Est. Priority Date: 05/02/1985
  • Status: Expired due to Term
First Claim
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1. A balloon coronary angioplasty probe comprising:

  • an elongate, flexible, tubular proximal segment having a proximal end and a distal end;

    an elongate distal segment including a support wire having a smaller diameter than the outer diameter of the distal end of the proximal segment, the support wire being connected to the proximal segment and extending distally beyond the distal end of the proximal segment, the support wire being shorter and more flexible than the proximal segment;

    a balloon supported on the probe about the support wire with the support wire extending through the balloon, the distal end of the balloon being attached to the distal segment of the probe;

    the tubular proximal segment defining a lumen for communicating the proximal end of the probe with the interior of the balloon to enable inflation and deflation of the balloon;

    a sleeve extending about the support wire, the sleeve being connected at its distal end to the proximal end of the balloon and at its proximal end to the distal end of the proximal segment;

    said sleeve communicating the interior of the balloon with the lumen of the proximal tubular segment;

    the proximal segment being sufficiently torsionally rigid so that when the probe is in a configuration corresponding to that of a human aortic arch and with the distal segment at least in part in a coronary artery, the probe is capable of transmitting controllably from its proximal to its distal end rotation applied at the proximal end.

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