Implantable heart defibrillator

Details Implantable heart defibrillator Implantable heart defibrillator

1995-03-17

1997-09-02

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 139

Patent

active

056626878

ABSTRACT:
An implantable heart defibrillator includes a pulse generator controlled by a control unit for emitting defibrillation pulses. The pulse generator is controllable to emit a number of low-energy defibrillation pulses, having a lower pulse amplitude and a shorter pulse duration than a conventional defibrillation pulse, with the total energy in the number of low-energy defibrillation pulses being less than the energy in a conventional defibrillation pulse. Each pulse in the number of low-energy defibrillation pulses, however, contains enough energy to depolarize heart cells oriented favorably in relation to the direction of the electrical field of the low-energy defibrillation pulse.

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patent: 4996984 (1991-03-01), Sweeney
patent: 5235978 (1993-08-01), Hirschberg et al.
patent: 5385576 (1995-01-01), Noren et al.
"Implantable Cardioverters and Defibrillators," Troup, Current Problems in Cardiology, O'Rourke, Ed., vol. XIV, No. 12, Dec. 1989.

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