Method and apparatus for analyzing cardiac activity for implanta

Details Method and apparatus for analyzing cardiac activity for implanta Method and apparatus for analyzing cardiac activity for implanta

1992-12-22

1994-07-05

Kamm, William E.

Surgery

Truss

Pad

607 14, A61B 50464

Patent

active

053258568

ABSTRACT:
The difference between the divergences between the determined PR and RR intervals (dPR-dRR) is measured, cycle by cycle, and compared to two selected thresholds S1 and S2. If the difference exceeds threshold S1, a signal corresponding to a ventricular tachycardia is triggered. If the difference is below threshold S2, a signal corresponding to a supraventricular tachycardia related signal is triggered. The trigger signals may be used to control the therapeutic treatment of an implantable tachycardia treatment device accordingly.

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R. A. Dufault et al., Comouters in Cardiology "Dual Lead Fibrillation Detection For Implantable Defibrillators Via LMS Algorithm", Oct. 7, 1986, Boston US, pp. 163-166.
K. B. Otte et al., "Physiologische Elektrostimulation des Herzens Stand und Entwicklungsaussichten" Medizintechnik, Sep. 1984, pp. 84-91.
Von Kurt-Bernd Otte et al., "Physiologische Elektrostimulation des Herzens Stand Und Entwicklungsaussichten", 4550 Medizintechnik, 24 (1984) Sep., No. 3, Berlin, DD., p. 91.

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