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Neurometric assessment of intraoperative anesthetic

United States Patent

5,775,330
July 7, 1998
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
The present invention is a method and apparatus for collecting EEG data, reducing the EEG data into coefficients, and correlating those coefficients with a depth of unconsciousness or anesthetic depth, and which obtains a bounded first derivative of anesthetic depth to indicate trends. The present invention provides a developed artificial neural network based method capable of continuously analyzing EEG data to discriminate between awake and anesthetized states in an individual and continuously monitoring anesthetic depth trends in real-time. The present invention enables an anesthesiologist to respond immediately to changes in anesthetic depth of the patient during surgery and to administer the correct amount of anesthetic.
Kangas; Lars J. (West Richland, WA), Keller; Paul E. (Richland., WA)
Battelle Memorial Institute (Richland, WA)
08/ 681,196
July 22, 1996
This invention was made with Government support under Contract DE-AC06 76RL0 1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.