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Medical device with morphology discrimination

  • US 5,240,009 A
  • Filed: 03/25/1991
  • Issued: 08/31/1993
  • Est. Priority Date: 03/25/1991
  • Status: Expired due to Term
First Claim
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1. A medical device for monitoring waveform complexes of intracardiac electrograms, which comprises:

  • electrode means adapted to be coupled to a patient'"'"'s heart;

    sensing means having an input coupled to said electrode means for sensing analog intracardiac electrograms;

    analog to digital converter means for converting the analog intracardiac electrogram to digital form;

    means for examining the intracardiac electrogram, said examining means comprising means for determining, with respect to a waveform peak of said digitized intracardiac electrogram, its amplitude, width and polarity, to provide identification criteria;

    means for storing said identification criteria;

    means for averaging a plurality of waveform complexes to provide a standard complex and means for periodically operating said averaging means when a predetermined number of waveform complexes have occurred.

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