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Catheter control system having a pulley

  • US 5,741,320 A
  • Filed: 05/02/1995
  • Issued: 04/21/1998
  • Est. Priority Date: 05/02/1995
  • Status: Expired due to Term
First Claim
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1. A catheter having a deflectable distal tip, the catheter comprising:

  • a resilient body member having a distal end and a proximal end;

    a manipulation handle attached to the proximal end of the body member having first and second elements movable in relation to each other;

    a pulley bracket mounted in the handle and movable in relation to the first and second elements;

    a pulley rotatably mounted to the pulley bracket;

    a pulley cable engaged with the pulley having first and second ends, the first end of the cable affixed to the first element and the second end of the cable affixed to the second element;

    a deflection control line mounted in the body member and connected at a proximal end to the pulley bracket and extending into and attached at the distal end of the body member; and

    whereby movement of the first and second elements in relation to each other results in movement of one end of the pulley cable to cause the pulley bracket to move the control line in the distal end of the body member causing deflection of the distal end of the body member with greater mechanical advantage.

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