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Pacemaker for detecting and terminating a tachycardia

  • US 4,880,005 A
  • Filed: 05/23/1988
  • Issued: 11/14/1989
  • Est. Priority Date: 08/12/1985
  • Status: Expired due to Term
First Claim
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1. An antitachycardia pacemaker, comprising:

  • means for detecting electrical cardiac events occurring in at least one chamber of the heart;

    means for detecting said events which exceed a selected tachycardia rate;

    means for determining the relative rate stability of the events which exceed said tachycardia rate;

    means responsive to said event detecting means and said stability determining means for detecting a pace-terminable tachycardia when at least a first selected number of said events exceed said tachycardia rate and a second selected number of said events have a defined rate stability; and

    means responsive to said pace terminable tachycardia detecting means for pacing the heart to terminate the tachycardia.

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