Atrial defibrillator having both specific and sensitive R wave d

Details Atrial defibrillator having both specific and sensitive R wave d Atrial defibrillator having both specific and sensitive R wave d

1995-04-18

1996-10-08

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

128705, A61N 139

Patent

active

055627099

ABSTRACT:
An implantable atrial defibrillator includes at least one lead for sensing electrical activity of a heart, a synchronizing stage for providing a synchronizing signal upon detection of an R wave, a timer for timing time intervals between immediately successive R waves, and a cardiovertor for cardioverting the heart when a cardiac interval is greater than a determined minimum time interval and in timed relation to a synchronizing signal. The defibrillator further includes first and second R wave detection channels, the first R wave detection channel providing the synchronizing stage with specific R wave detection, and the second R wave detection channel providing the timer with sensitive R wave detection.

REFERENCES:
patent: 5044366 (1991-09-01), Alt
patent: 5279291 (1994-01-01), Adams et al.
patent: 5330504 (1994-07-01), Somerville et al.
patent: 5350404 (1994-09-01), Adams et al.
patent: 5458621 (1995-10-01), White et al.

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