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System and Method for Improved Start-Up of Self-Oscillating Electro-Mechanical Surgical Devices

  • US 20110241786A1
  • Filed: 03/30/2010
  • Published: 10/06/2011
  • Est. Priority Date: 03/30/2010
  • Status: Active Grant
First Claim
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1. An oscillating circuit for determining a resonant frequency of an electro-mechanical oscillating device and for driving the electro-mechanical oscillating device at the determined resonant frequency, the oscillating circuit comprising:

  • a driving circuit configured to receive at least one reference signal and further configured to provide a driving signal related to the at least one reference signal to the electro-mechanical oscillating device; and

    a start-up, impetus injection circuit operably coupled to the electro-mechanical oscillating device, wherein the start-up, impetus injection circuit is configured to selectively provide a start-up excitation signal to the electro-mechanical oscillation device, and wherein the start-up, impetus injection circuit is activated upon start-up of the oscillating circuit to drive the electro-mechanical oscillation device,wherein the driving circuit determines a resonant frequency by measuring a parameter related to the resonant frequency of the electro-mechanical oscillating device.

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