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Method and circuit for detecting cardiac rhythm abnormalities by analyzing time differences between unipolar signals from a lead with a multi-electrode tip

  • US 20030100923A1
  • Filed: 11/27/2001
  • Published: 05/29/2003
  • Est. Priority Date: 11/27/2001
  • Status: Active Grant
First Claim
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1. A method for detecting cardiac rhythm abnormality, comprising the steps of:

  • providing a plurality of electrodes at a tip of a cardiac lead, which are electrically separated from each other;

    placing said tip of said cardiac lead in contact with cardiac tissue so that all of said electrodes are simultaneously in substantially fixed contact with said cardiac tissue;

    obtaining individual unipolar electrical signals from said cardiac tissue respectively via said electrodes, said unipolar signals exhibiting a time relationship relative to each other; and

    analyzing said time relationship to obtain an analysis result and generating a signal indicating a cardiac rhythm abnormality dependent on said analysis result.

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