Method and apparatus for the estimation of anesthetic depth using wavelet analysis of the electroencephalogram

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United States of America Patent

PATENT NO 8798735
SERIAL NO

12584083

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Abstract

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A method and apparatus to monitor the neurologic state of a patient undergoing general anesthesia is provided. Previous automated systems to monitor the neurologic state of a patient undergoing general anesthesia involve a significant time delay between the patient's true hypnotic state and the computed indices. The present invention reduces this time delay by using a different analysis technique applied to spontaneous EEG. A wavelet decomposition and statistical analysis of the observed EEG is conducted and compared to reference data to provide a numerical indicator. In addition, this indicator is more consistent with the patient's loss of consciousness indicated by the loss of count event than previous systems.

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Patent Owner(s)

Patent OwnerAddress
BIONOVA TECHNOLOGIES INC4453 WEST 12TH AVENUE VANCOUVER BC V6R 2R3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahmadi, Hossain Cyrus Vancouver, CA 2 119
Bibian, Stéphane Vancouver, CA 37 373
Dumont, Guy Albert Vancouver, CA 4 198
Huzmezan, Mihai Vancouver, CA 10 286
Macleod, Bernard Ansell Vancouver, CA 3 150
Puil, Ernest Vancouver, CA 6 150
Ries, Craig Robert Vancouver, CA 4 198
Zikov, Tatjana Shaker Heights, US 45 704

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