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Controlling movement of distal portion of medical device

  • US 7,780,648 B2
  • Filed: 12/05/2008
  • Issued: 08/24/2010
  • Est. Priority Date: 12/28/2007
  • Status: Active Grant
First Claim
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1. A medical device capable of omni-directional control, comprising:

  • an elongated member including a deflectable portion at a distal end portion of the elongated member; and

    a control portion disposed on the elongated member, the control portion including an elastic element and a flexible element, angular movement of a first portion of the control portion with respect to a second portion of the control portion adapted to amplify deflection of the deflectable portion of the elongated member, the elastic element of the control portion defining a plurality of lumens extending between a proximal end portion and a distal end portion of the elastic element, each lumen of the plurality of lumens configured to receive a pull wire; and

    a plurality of pull wires, each pull wire of the plurality of pull wires corresponding to a respective lumen of the plurality of lumens of the elastic element, each pull wire having an outer diameter less than an inner diameter of its respective lumen.

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