Truncated pulse defibrillator with flash tube switch

Details Truncated pulse defibrillator with flash tube switch Truncated pulse defibrillator with flash tube switch

1994-12-29

1996-07-02

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 5, A61N 139

Patent

active

055317693

ABSTRACT:
A defibrillator utilizes at least one flash tube for switching electrical energy from an energy source to a heart patient. The flash tube has a high impedance state in which the patient is isolated from the energy. In response to a triggering pulse, the flash tube enters a low impedance state in which energy is delivered to the patient. An additional switching element in the defibrillator operates to interrupt energy delivery through the flash tube so that a truncated defibrillation pulse having a desired energy level is produced.

REFERENCES:
patent: 3723887 (1973-03-01), Panico
patent: 3773050 (1973-11-01), Panico
patent: 3886950 (1975-06-01), Ukkestad et al.
patent: 4850357 (1989-07-01), Bach, Jr.
patent: 5222492 (1993-06-01), Morgan et al.
"The Objectives and Uses of AAMI Standards and Recommended Practices--Cardiac Defibrillator Devices," Association for the Advancement of Medical Instrumentation, 1989, 23 pp.

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