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Cardiac event detection over varying time scale

  • US 20090216141A1
  • Filed: 02/10/2009
  • Published: 08/27/2009
  • Est. Priority Date: 11/26/2003
  • Status: Active Grant
First Claim
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1. A device for tracking the cardiovascular condition of a human patient the system including:

  • at least two implanted electrodes that are positioned within the human patient to sense the electrical signal from the patient'"'"'s heart, the electrical signal consisting of a multiplicity of beats;

    a memory;

    a processor configured to(a) compute from the electrical signal a heart signal parameter'"'"'s average value over a time period for each of a multiplicity of heart rate ranges, thereby generating a multiplicity of average values, wherein the time period is at least 24 hours;

    (b) store the multiplicity of average values in the memory according to both time period and heart rate,(c) repeat (a) and (b) for a multiplicity of time periods, thereby generating, for each heart rate range, a time series of average values of the parameter.

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