EEG d-c voltage shift as a means for detecting the onset of a neurological event
US6061593A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1998 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Apr 24, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37211
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.