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Multi-electrode mapping system

  • US 8,401,625 B2
  • Filed: 07/19/2011
  • Issued: 03/19/2013
  • Est. Priority Date: 04/23/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • inserting a catheter into a heart cavity, the catheter comprising a first electrode;

    positioning a second electrode in a stable location relative to the heart, the location being outside of the heart cavity and located at a distance from the heart cavity;

    for multiple different catheter positions in the heart cavity, measuring the unipolar signals by measuring a potential between the first electrode located in the heart cavity and the second electrode located outside the heart cavity;

    generating bipolar information based on three or more of the unipolar signal measurements; and

    displaying an electro-anatomical map of at least a portion of the heart, the electro-anatomical map including at least some of the bipolar information.

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