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Dual chamber pacemaker with adjustable blanking and V-A extension

  • US 4,967,746 A
  • Filed: 10/23/1989
  • Issued: 11/06/1990
  • Est. Priority Date: 10/23/1989
  • Status: Expired due to Term
First Claim
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1. A dual chamber cardiac pacemaker comprisingmeans for detecting a maximum ventricular heart rate,means for detecting an atrial event during a relative atrial refractory period, andmeans responsive to the heart rate detecting means and to the atrial event detecting means for extending a ventricular-atrial delay period.

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