Apparatus for stimulating the heart with protected pacer

Details Apparatus for stimulating the heart with protected pacer Apparatus for stimulating the heart with protected pacer

1986-05-14

1989-05-09

Kamm, William E.

Surgery

Truss

Pad

128419PG, A61N 136

Patent

active

048279366

ABSTRACT:
A combination two-channel defibrillator and programmable pacing stimulator for assesses lethal ventricular tachyarrhythmias and determine defibrillation thresholds during implantable defibrillator procedures. A pair of switching transistors are provided to protect the pacing circuit when a defibrillation shock is delivered. These switching transistors provide symmetric voltage protection and prevent the defibrillation energy from being shunted back to the patient through the pacing leads.

REFERENCES:
patent: 3236239 (1966-02-01), Berkovits
patent: 3345990 (1967-10-01), Berkovits
patent: 3857398 (1974-12-01), Dubin
patent: 4375817 (1983-03-01), Engle et al.
patent: 4523595 (1985-06-01), Zibell

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