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Surgical instruments

  • US 20090036913A1
  • Filed: 07/31/2007
  • Published: 02/05/2009
  • Est. Priority Date: 07/31/2007
  • Status: Active Grant
First Claim
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1. A surgical device comprising:

  • a transducer to receive an electrical signal from a generator and to provide vibrations;

    an end effector coupled to the transducer and extending from the transducer along the longitudinal axis; and

    a control circuit to modify a current amplitude of the electrical signal in response to a change in a vibration frequency of the end effector.

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