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Frequency Shifting Multi Mode Ultrasonic Dissector

  • US 20110213397A1
  • Filed: 02/26/2010
  • Published: 09/01/2011
  • Est. Priority Date: 02/26/2010
  • Status: Active Grant
First Claim
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1. An ultrasonic surgical system, comprising:

  • a variable frequency oscillator configured to generate an oscillator output signal having a frequency determined according to an oscillator control signal;

    a variable gain amplifier operably coupled to the oscillator and configured to amplify the oscillator output signal by an amount determined according to an amplifier control signal to generate a driving signal;

    a controller operably coupled to the oscillator and the amplifier, and configured to provide an oscillator control signal and an amplifier control signal in response to user input;

    a user interface operably coupled to the controller and adapted to convey user input thereto;

    an actuator operably coupled to the controller and adapted to convey an actuation signal thereto; and

    an ultrasonic instrument operably coupled to the amplifier, including a transducer adapted to convert the driving signal into ultrasonic energy for application to tissue.

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