EEG d-c voltage shift as a means for detecting the onset of a ne

Details EEG d-c voltage shift as a means for detecting the onset of a ne EEG d-c voltage shift as a means for detecting the onset of a ne

1998-04-24

2000-05-09

Kamm, William E.

Surgery

Diagnostic testing

Detecting brain electric signal

A61D 50476

Patent

active

060615931

ABSTRACT:
Disclosed herein is a multiple electrode, closed-loop system for the treatment of certain neurological disorders such as epilepsy, migraine headaches and Parkinson's disease. Specifically, the present invention combines a multi-electrode array with sophisticated signal processing techniques to achieve reliable detection of the onset of a neurological event (such as an epileptic seizure or migraine headache) typically originating from a focus of limited spatial extent within the brain. It is highly desirable to detect an epileptic seizure at least 5 seconds before the onset of clinical symptoms. Since there is often a d-c shift in the EEG voltage more than 5 seconds before the seizure, disclosed herein is a means for utilizing the d-c shift of the EEG for early detection of the seizure.

REFERENCES:
patent: 4566464 (1986-01-01), Piccone et al.
patent: 5299569 (1994-04-01), Wernicke et al.
patent: 5743860 (1998-04-01), Hively et al.

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