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Dual chamber pacing system and method with continual adjustment of the AV escape interval so as to maintain optimized ventricular pacing for treating cardiomyopathy

  • US 5,626,620 A
  • Filed: 02/21/1995
  • Issued: 05/06/1997
  • Est. Priority Date: 02/21/1995
  • Status: Expired due to Term
First Claim
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1. A dual chamber pacemaker, having atrial sense means for sensing atrial signals from a patient, ventricular sense means for sensing ventricular signals from a patient, ventricular pace means for generating and delivering ventricular pace pulses to said patient'"'"'s right ventricle, and sync control means for controlling said ventricular pace means to generate and deliver a ventricular pace pulse at a controlled AV escape interval following a sensed atrial signal, said sync control means having AVesc means for setting said AV escape interval, said AVesc means comprising:

  • fusion means for detecting occurrence of fusion beats, rate means for determining a rate of occurrence of fusion beats over a plurality of pacemaker cycles, and adjustment means for adjusting said AV escape interval as a function of said determined rate.

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