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Medical system for mapping cardiac tissue

  • US 10,085,659 B2
  • Filed: 10/02/2015
  • Issued: 10/02/2018
  • Est. Priority Date: 10/03/2014
  • Status: Active Grant
First Claim
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1. A system for mapping the electrical activity of the heart, the system comprising:

  • a catheter shaft, wherein a plurality of electrodes is coupled thereto, and wherein the plurality of electrodes includes a first electrode and a second electrode;

    a processor coupled to the first electrode and the second electrode, the processor configured to;

    collect a first signal from the first electrode over a time period;

    generate a first time-frequency distribution corresponding to the first signal, wherein the first time-frequency distribution includes a first dominant frequency value representation occurring at one or more first base frequencies; and

    apply a filter to at least one of the first signal and a derivative of the first signal to determine whether the first dominant frequency value representation includes a single first dominant frequency value at a first base frequency or more than one first dominant frequency values at more than one base frequencies; and

    generate a visual display of at least one of the filtered first signal and the filtered derivative of the first signal indicating whether the first dominant frequency value representation includes a single first dominant frequency value at a first base frequency or more than one first dominant frequency values at more than one base frequencies.

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