The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 1994
Filed:
Nov. 30, 1993
Applicant:
Inventors:
Joan S Lockard, Bellevue, WA (US);
Larry L DuCharme, Seattle, WA (US);
William C Congdon, Jr, Woodinville, WA (US);
Douglas F Kalk, Seattle, WA (US);
Assignee:
University of Washington, Seattle, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; A61B / ;
U.S. Cl.
CPC ...
128732 ; 128731 ; 128733 ;
Abstract
A method and apparatus for accurately determining the onset or occurrence of an epileptic seizure is disclosed. The system includes an electroencephalograph (EEG) and an electromyograph (EMG) which provide signals to a signal processor. The signal processor operates to generate a digitized envelope waveform of the EEG waveform and the EMG waveform. If the waveforms all have an amplitude within a predetermined threshold, for a predetermined time interval, a CPU provides a signal to an output display indicative of a epileptic seizure.