Fault detection circuit for permanently implanted cardioverter

Details Fault detection circuit for permanently implanted cardioverter Fault detection circuit for permanently implanted cardioverter

1977-05-27

1979-08-21

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

041649460

ABSTRACT:
Disclosed is a permanently implantable cardioverter, or defibrillator including built-in interrogation and testing circuitry. Implanted fault detection circuits react to malfunctions in the implanted fibrillation detection circuitry, and ensure that inappropriate defibrillation pulses are not delivered to the wearer. Also disclosed is an implantable externally actuatable interrogation and test circuit which interrogates the sensing circuitry for faults, and which delivers a realistic defibrillation pulse to an implanted test load. An external device for monitoring the operation of the implanted defibrillator is also disclosed.

REFERENCES:
patent: 3138151 (1964-06-01), Chapman et al.
patent: 3612041 (1971-10-01), Ragsdale
patent: 3703900 (1972-11-01), Holznagel
patent: 3886932 (1975-06-01), Suessmilch
patent: 3952750 (1976-04-01), Mirowski et al.
Stratbucker et al., "Rocky Mountain Engineering Society", 1965, pp. 57-61.
Schuder et al., "Transactions of the American Society for Artificial Internal Organs", vol. XVI, 1970, pp. 207-212.

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