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Heartbeat monitoring process and device

  • US 4,250,888 A
  • Filed: 11/28/1978
  • Issued: 02/17/1981
  • Est. Priority Date: 12/14/1977
  • Status: Expired due to Term
First Claim
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1. The method of electronic long-time monitoring of heart performance involving EKG lead electrodes applied to the skin of a patient, which method comprises digitizing the EKG signal delivered by the electrodes, and simultaneously evaluating the EKG signal on the basis of each of a plurality of different parameters, temporarily storing all evaluation signals for a plurality of heartbeats in the form of histograms, each of which histograms is unique to a different parameter evaluation, whereby for each histogram a threshold value is stored representing a normal performance of the heart in terms of the applicable parameter, continuously comparatively monitoring each newly developed evaluation signal against the applicable threshold value for the occurrence of an anomaly histogram in respect of the applicable parameter, and permanently storing the anomaly histogram as well as the corresponding-parameter histograms for a predetermined number of preceding and following heartbeat cycles.

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