Preemptive cardioversion therapy in an implantable cardioverter

Details Preemptive cardioversion therapy in an implantable cardioverter Preemptive cardioversion therapy in an implantable cardioverter

1993-09-16

1995-06-20

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 139

Patent

active

054257492

ABSTRACT:
A method for use with an implantable cardioverter defibrillator apparatus of the type having a microprocessor-based control circuit, a charging circuit communicatively connected to the control circuit, a small charge storage capacitor, a large charge storage capacitor, switches, and charge output terminals, of delivering a preemptory shock to a patient, comprising the steps of a.) receiving physiological information pertaining to the onset of a deleterious cardiac event; b.) charging the small charge storage capacitor in the implantable cardioverter defibrillator apparatus immediately after step (a); c.) reviewing the information to confirm the onset of a cardiac event; and d.) delivering a preemptory charge from the small charge storage capacitor to the patient if the onset of a cardiac event is confirmed. An apparatus for practicing the above method is also discussed.

REFERENCES:
patent: 4375817 (1983-03-01), Engle et al.
patent: 5014697 (1991-05-01), Pless et al.
patent: 5063928 (1991-11-01), Grevis et al.
patent: 5201321 (1993-04-01), Fulton
Kroll et al., Slope Filtered Pointwise Correlation Dimension Algorithm and Its Evaluation With Prefibrilation Heart Rate, Journal of Electrocardiology vol. 24, Supplement, pp. 97-101.

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