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Steerable dilatation catheter

  • US 5,449,343 A
  • Filed: 08/11/1988
  • Issued: 09/12/1995
  • Est. Priority Date: 07/30/1985
  • Status: Expired due to Term
First Claim
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1. A steerable dilatation catheter comprising:

  • a) an elongated, torquable member including;

    an elongated, tubular member formed of high-strength material having proximal and distal ends and an inner lumen extending therein;

    an elongated flexible guide element having proximal and distal ends, and being secured its proximal end to the distal end of the elongated tubular member;

    b) an inflatable balloon having proximal and distal ends with the proximal and distal ends secured to the elongated torquable member to prevent relative rotational movement between the proximal and distal ends of the balloon and an interior in fluid communication with the inner lumen extending within the elongated tubular member, with a distal portion of the elongated flexible guide element extending out the distal end of the balloon;

    c) an elongated flexible member having a proximal end and a distal end including a distal tip and being disposed about the distal portion of the guide element which extends out the distal end of the balloon; and

    d) torque means on the proximal end of the torquable member to axially rotate the torquable member.

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