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Classification of supraventricular and ventricular cardiac rhythms using cross channel timing algorithm

  • US 6,449,503 B1
  • Filed: 07/14/1999
  • Issued: 09/10/2002
  • Est. Priority Date: 07/14/1999
  • Status: Expired due to Term
First Claim
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1. A method, comprising:

  • sensing a first cardiac signal and a second cardiac signal, wherein the first cardiac signal has a voltage;

    detecting a first cardiac complex of a cardiac cycle in the first cardiac signal;

    detecting a second cardiac complex of the cardiac cycle in the second cardiac signal, wherein the second cardiac complex includes a predetermined alignment feature;

    defining a datum at a specified interval from the predetermined alignment feature of the second cardiac complex;

    selecting two or more morphological features along the first cardiac complex;

    obtaining two or more predefined measurement intervals from the datum, the two or more predefined measurement intervals being measured between the datum and the respective two or more morphological features; and

    measuring a voltage value of the first cardiac signal for the first cardiac complex at each of the two or more predefined measurement intervals from the datum.

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