Implantable N-phasic defibrillator output bridge circuit

Details Implantable N-phasic defibrillator output bridge circuit Implantable N-phasic defibrillator output bridge circuit

1993-03-12

1995-03-14

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 139

Patent

active

RE0348791

ABSTRACT:
An output bridge circuit comprising four independently controlled transistors connected between first and second electrode terminals and a defibrillation capacitor. Two of the four transistors are driven by push-pull driver circuits and connected between the capacitor and the first and second electrode terminals. The remaining two transistors are connected between the first and second electrode terminals and ground terminals. By triggering one of the transistors connected to the push-pull driver circuits and one of the transistors connected between the electrode terminals and the ground terminal, a mono-phasic, multi-phasic, or sequential defibrillation pulse can be generated by activating the appropriate transistors.

REFERENCES:
patent: 4504773 (1985-03-01), Suzuki et al.
patent: 4693253 (1987-09-01), Adams
patent: 4840177 (1989-06-01), Charbonnier et al.
patent: 4850357 (1989-07-01), Bach, Jr.

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