Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1993-04-09
1994-08-30
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 139
Patent
active
053424034
ABSTRACT:
A defibrillator/monitor architecture is disclosed with a defibrillator-only mode of operation to provide for shocking a patient notwithstanding failure of the monitor subsystem. The defibrillator/monitor subsystem is partitioned into a defibrillator subsystem and a monitor subsystem. The defibrillator subsystem includes the patient charging circuits and other components necessary to carry out basic defibrillation. The monitor subsystem includes an ECG front-end, CRT display, data recorder and other features. In normal operation, the defibrillator subsystem relies on periodic ECG data ready interrupts from the monitor subsystem for system timing. In the event that the ECG interrupts do not arrive within a predetermined time limit, the monitor subsystem is presumed dead and the defibrillator subsystem switches to defibrillator-only mode of operation, in which system timing is provided by a local standby timer.
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patent: 3805795 (1974-04-01), Denniston et al.
patent: 4432375 (1984-02-01), Angel et al.
patent: 4614192 (1986-09-01), Imran et al.
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patent: 4974600 (1990-12-01), Reyes
Bledsoe J. Daren
Burkhalter Art
Cyrus Judith
Jordan Dan
Kootstra Steve
Hewlett-Packard Corporation
Kamm William E.
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