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Rotating transducer mount for ultrasonic surgical instruments

DC
  • US 8,461,744 B2
  • Filed: 07/15/2009
  • Issued: 06/11/2013
  • Est. Priority Date: 07/15/2009
  • Status: Active Grant
First Claim
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1. A surgical instrument comprising:

  • a housing;

    a generator supported by said housing, said generator to generate an ultrasonic drive signal;

    an electrical contact assembly in electrical communication with said generator;

    an acoustic assembly comprising first and second piezoelectric elements, said acoustic assembly rotatable with respect to said generator and said electrical contact assembly, wherein said electrical contact assembly is in electrical communication with said first and second piezoelectric elements, wherein said acoustic assembly comprises a first electrode supported for continuous rotational contact with said electrical contact assembly; and

    a waveguide operably connected to said acoustic assembly, said waveguide rotatable with respect to said housing and said generator.

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