Ambulatory electroencephalography system

Details Ambulatory electroencephalography system Ambulatory electroencephalography system

1991-04-24

1993-06-29

Cohen, Lee S.

Surgery

Truss

Pad

A61B 50476

Patent

active

052225038

ABSTRACT:
An ambulatory electroencephalography (EEG) system includes a self-powered recording apparatus adapted to be worn by a patient. The recording apparatus includes an A/D converter and a digital memory capable of storing digital data representing analog waveform signals derived from a large number of electrodes secured to the patient. Recording of digital waveform data is governed by a controller, which upon the occurrence of a neurologically significant event (such as actuation of a switch by the patient or detection of EEG waveforms indicating a seizure state) causes the storage of waveform data over an interval immediately preceding the event and immediately following the event.

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Lettich et al., "A simplified circuit for stimulus artifact suppression", Electroencephalography and Clinical Neurophysiology, vol. 39, No. 1, pp. 85-87, Jul. 1975.
"Ambulatory EEG Monitoring", John Ebersole, Raven Press, 1989, Chapters 1 and 2.
"Clinical Usefulness of Ambulatory EEG", John S. Ebersole, Samuel L. Bridgers, Marshall J. Keilson, American Academy of Neurology 1990 Annual Meeting Seminar 267.
"Ambulatory Outpatient EEG Monitoring" (A1-A2), John R. Ives, Donald L. Schomer, American Academy of Neurology Annual Course #450 (Apr.-May 1990).

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