Patent ID: 7979130
Filing Date: 2011-07-12
Classification: A61B,A61N,G06K,G16H

Abstract:
1. A system for detecting a neurological event, comprising: an electrode adapted to sense an EEG signal from a brain of a patient; and an implantable medical device (IMD) coupled to the electrode and adapted to receive the sensed EEG signal, the IMD comprising a housing, a memory, and a processor, the memory being programmed with executable instructions for causing the processor to: sample the sensed EEG signal at a sample rate to form a stream of sampled data values; calculate an event monitoring parameter based on the stream of sampled data values; identify an onset of a neurological event when the event monitoring parameter exceeds an onset threshold; initiate warm-up of stimulation circuitry when the event monitoring parameter has exceeded the onset threshold for a period of time equal to an onset duration less a warm-up period, the onset duration being a predefined period of time such that a neurological event is detected if the event monitoring parameter exceeds the onset threshold for the onset duration; and after initiating warm-up of the stimulation circuitry, terminate the warm-up by resetting the stimulation circuitry if the event monitoring parameter decreases below the onset threshold before detection of the neurological event.