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Transducer/Waveguide Engagement Mechanisms for Ultrasonic Surgical Instruments

  • US 20130085419A1
  • Filed: 09/29/2011
  • Published: 04/04/2013
  • Est. Priority Date: 09/29/2011
  • Status: Abandoned Application
First Claim
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1. An ultrasonic surgical instrument, comprising:

  • a transducer assembly configured to supply ultrasonic energy, the transducer assembly including a distal engagement member;

    a waveguide defining a longitudinal axis and having a proximal engagement member configured to threadingly engage the distal engagement member of the transducer assembly, the waveguide configured to transmit the ultrasonic energy therealong from the proximal engagement member to a distal end thereof for treating tissue; and

    a torque member coupled to the transducer assembly and disposed about the longitudinal axis, the torque member selectively rotatable about the longitudinal axis and relative to the waveguide to threadingly engage the transducer assembly and the waveguide, the torque member including a plurality of fingers pivotably coupled thereto and movable between a closed position, wherein the fingers are disposed in close proximity to one another and relative to the longitudinal axis, and a open position, wherein each finger extends radially-outwardly from the longitudinal axis in substantially perpendicular orientation relative to the longitudinal axis to define a moment arm configured to facilitate threading engagement of the transducer assembly and the waveguide.

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