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Pacemaker with improved dynamic rate responsiveness

  • US 4,972,834 A
  • Filed: 09/30/1988
  • Issued: 11/27/1990
  • Est. Priority Date: 09/30/1988
  • Status: Expired due to Term
First Claim
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1. A rate adaptive pacemaker system for pacing a patient, said system comprising a pacemaker having generator means for generating pacing pulses at a controlled pacing rate, any said pacing rate having a corresponding pacing interval, means for monitoring at least one patient variable correlative of desired heart rate, and rate control means for controlling said generator means to generate said pacing pulses at a rate which is a function of said at least one monitored variable, characterized by said rate control means comprising adjust means for automatically adjusting said function to correlate said pacing rate and said patient variable at at least one pacing rate in accordance with patient history.

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