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Systems and methods for controlling power in an electrosurgical probe

  • US 6,123,702 A
  • Filed: 09/10/1998
  • Issued: 09/26/2000
  • Est. Priority Date: 09/10/1998
  • Status: Expired due to Fees
First Claim
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1. An apparatus for coagulating tissue, comprising:

  • a support element;

    at least one operative element on the support element; and

    a control system, operably connected to the operative element, and adapted to measure impedance and determine whether the operative element is in contact with tissue and whether tissue in proximity to the operative element is viable tissue or non-viable tissue, at least one of the determinations being based on an impedance versus frequency profile.

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