Programmable defibrillator

Details Programmable defibrillator Programmable defibrillator

1990-01-11

1991-05-14

Kamm, William E.

Surgery

Truss

Pad

A61N 139

Patent

active

050146971

ABSTRACT:
The subject invention integrates a two-channel defibrillator with a programmable stimulator to provide a means for assessing lethal ventricular tachyarrhythmias and determining defibrillation thresholds during implantable defibrillator procedures. The subject apparatus includes a number of features to aid doctors as well as improve patient care at substantially decreased patient risk. These features include an automatic charging circuit, as well as dual channel high voltage capacitor circuits to reduce the time in which a rescue shock can be delivered to a patient after an initial test defibrillation shock. Parameter storage is provided to allow the unit to be preprogrammed prior to the initiation of an electrophysiologic procedure. A microprocessor controlled display system provides the physician with information parameters regarding defibrillation shocks. This displayed information includes the energy delivered and the resistance in the patient. In addition, the apparatus also displays information regarding energy which is expected to be delivered based on the entered parameters.

REFERENCES:
patent: 3236239 (1966-02-01), Berkovits
patent: 3805795 (1974-04-01), Denniston et al.
patent: 4637397 (1987-01-01), Jones et al.
patent: 4693253 (1987-09-01), Adams
Winkle et al, "American Heart Journal", vol. 108, No. 5, Nov., 1984, pp. 1335-1346.

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