Using an implantable antitachycardia defibrillator circuit

Details Using an implantable antitachycardia defibrillator circuit Using an implantable antitachycardia defibrillator circuit

1987-07-16

1988-11-29

Jaworski, Francis

Surgery

Truss

Pad

128419D, A61N 100

Patent

active

047873892

ABSTRACT:
A cardiac stimulation apparatus is provided which includes an implantable cardiac pacer 10 having an antitachycardia circuit 12 and an implantable defibrillator circuit 58. The patient's electrical heart rate is sensed and if the heart rate exceeds a predetermined threshold, the antitachycardia circuit 12 is activated. If the antitachycardia circuit 12 fails to lower the heart rate to below a selected rate, the defibrillator circuit 58 is activated. A coded pulse train is transmitted between the pacer 10 and the defibrillator circuit 58 for isolating the pacer 10 from the defibrillator circuit 58 during operation of the defibrillator circuit 58.

REFERENCES:
patent: 3857398 (1974-12-01), Rubin
patent: 4475551 (1984-10-01), Langer et al.
patent: 4641656 (1987-02-01), Smits
patent: 4693253 (1987-09-01), Adams
Winkle, "The Implantable Defibrillator in Ventricular Arrhythmias", Hospital Practice, pp. 149-165 (Mar. 1983).

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