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METHOD AND APPARATUS FOR VERIFYING A DETERMINED CARDIAC EVENT IN A MEDICAL DEVICE BASED ON DETECTED VARIATION IN HEMODYNAMIC STATUS

  • US 20070239053A1
  • Filed: 04/28/2006
  • Published: 10/11/2007
  • Est. Priority Date: 03/31/2006
  • Status: Active Grant
First Claim
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1. A medical device, comprising:

  • a plurality of sensors sensing cardiac signals;

    a physiologic sensor sensing physiologic signals to generate a plurality of variation index samples corresponding to the sensed signals; and

    a microprocessor detecting a cardiac event in response to the sensed cardiac signals, computing a variation index trend associated with a predetermined number of variation index samples of the plurality of variation index samples, determining whether the sensed cardiac signals are associated with noise in response to the computed variation index, and confirming the determined cardiac event in response to the sensed cardiac signals not being associated with noise.

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