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Assessment of electrode coupling for tissue ablation

  • US 9,254,163 B2
  • Filed: 08/24/2012
  • Issued: 02/09/2016
  • Est. Priority Date: 12/06/2005
  • Status: Active Grant
First Claim
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1. A medical system comprising:

  • an electrical power system configured to provide electrical power at multiple frequencies to an electrode of a catheter;

    an electrical parameter measurement module configured to measure electrical parameters at each of said multiple frequencies;

    an assessment module configured to;

    identify one frequency of said multiple frequencies where a first measurement of a first electrical parameter of said electrical parameters is at a predetermined value; and

    assess a coupling between the electrode and a tissue based on a subsequent measured change of said first electrical parameter at said one frequency relative to said predetermined value.

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