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Ablation system, methods, and controllers

  • US 9,561,070 B2
  • Filed: 03/11/2014
  • Issued: 02/07/2017
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A multi-electrode ablation system, the control system comprising:

  • a power supply configured to be coupled to a plurality of electrodes for delivering power to the electrodes; and

    a controller operable to;

    compare a measured temperature at each electrode to a desired temperature to thereby define a temperature difference for each electrode;

    determine, based on said temperature difference, a desired power for each electrode;

    compare the desired power of a first electrode of the electrodes to an actual power delivered to said first electrode to define a power difference; and

    adjust the actual power delivered by the power supply to said first electrode for a first time period based on said power difference;

    determine, based on the desired power for each electrode, a desired energy to be dissipated by each electrode; and

    determine, for the remaining electrodes of the plurality of electrodes other than said first electrode, based on the actual power delivered to said first electrode and the desired energy to be dissipated by each respective remaining electrode, a respective second time period during which power is delivered by the power supply to the remaining electrodes, the respective second time period being no greater than the first time period.

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