Seizure detector, brain dysfunction monitor and method

摘要

The present invention relates to a brain dysfunction and seizure detector monitor and system, and a method of detecting brain dysfunction and/or seizure of a subject. The various embodiments of the system of the present invention were developed for the brain activity and preferably EEG monitoring of a single patient or multiple patients. Preferably, the system or monitor of the present invention also includes one or more seizure detection algorithms. The analysis method is specifically optimized to amplify abnormal brain activity and minimize normal background activity. This analysis yields a seizure index whose value is directly related to the current presence of ictal activity in the signal. In addition, a seizure probability index based on historical values of the aforementioned seizure index, is derived for diagnostic purposes. The seizure probability index quantifies the probability that the patient has exhibited abnormal brain activity since the beginning of the recording. The real-time seizure index, and the historical seizure probability index, can be used in the context of an emergency and/or clinical situation to assess the status and well being of a patient's brain, or can be used to automatically administer treatment to stop the seizure before clinical signs appear.

主权项

1. A device for detecting seizures or brain dysfunction comprising:
at least two surface EEG electrodes for detecting brain wave activity, each electrode having a signal; and a patient module adapted to be positioned external to the patient comprising at least one electronic component, the at least one electronic component capable of inputting the signals from the at least two EEG electrodes for detecting brain wave activity, identifying ictal effects from the signals, selectively amplifying ictal effects from the signals, automatically identifying seizures or other brain dysfunction based on the amplified ictal effects, and outputting a calculated signal related to the identified seizures or other brain dysfunction.