Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-11-08
1998-07-07
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 139
Patent
active
057761655
ABSTRACT:
An active implanted medical device of the implantable defibrillatory cardioverter type. This device comprises an atrial electrode (40), a ventricular electrode (50), at least one electrode external to the heart (70, 80) and a pulse generator (60). The pulse generator comprises a means for delivering a shock energy pulse for defibrillation or cardioversion, and means for switching the electrode configuration, that determines between which electrodes the defibrillation or cardioversion shock energy pulse is to be applied. The switching means operates in response to the determined delivery of a cardioversion shock pulse energy, by disconnecting the atrial electrode from the means for delivering the shock energy pulse for defibrillation or cardioversion, and, if the configuration of electrodes determined by the switching means foresees the commutation of the atrial electrodes a return electrode, then to substitute for the atrial electrode at least one of electrodes external to the heart.
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Florin et al., "The Induction of Atrial Fibrillation with Low energy Defibrillator Shocks is Related to Lead and Pulse Width," Supplement To Circulation vol. 92 No. 8, Oct. 15,1995, Abstracts from the 68th Scientific Sessions Anaheim Convention Center, Arahein CA Nov. 13-16, 1995 p. 143, Abstract No. 667.
ELA Medical S.A.
Kamm William E.
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