Patent ID: 8249712
Filing Date: 2012-08-21
Classification: A61B,A61N

Abstract:
1. An implantable device for detecting a patient's increased susceptibility to neurological events and triggering an action when a state of increased susceptibility is detected, the device comprising: a buffer configured to store a time of a therapy event each time a therapy is delivered to the patient; and a central processing unit configured to select an event time window and including a therapy density analyzer, the therapy density analyzer further comprising: a therapy event identifier configured to identify a selected therapy event that occurred in the event time window; an interval counter configured to measure time elapsed from the time of a therapy event that is a predetermined number of therapy events prior to the selected therapy event to the time of the selected event; and a density evaluator configured to compare the time elapsed from the time of the therapy event that is the predetermined number of therapy events prior to the selected therapy event to the time of the selected event to a predetermined time interval, and if elapsed time is less than the predetermined time interval, to provide a signal that is configured to initiate one or more actions to respond to the neurological events, wherein the therapy event identifier is configured to identify another selected therapy event that occurred in the event time window if the elapsed time is not less than the predetermined time interval for the selected therapy event and if not all therapy events in the event time window have been previously selected.