Methods and systems for seizure analysis
AssigneeBrain Sentinel, Inc.
InventorsDamon P. Cardenas, Jose E. Cavazos, Isa Conradsen, Michael R. Girouard, Jonathan J. Halford, Luke E. Whitmire
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Abstract
Methods and apparatuses for detecting and characterizing seizures are described. In some embodiments, the methods and apparatuses include collecting an electrical signal from one or more electrodes disposed on the head or scalp of a patient and processing the electrical signal to determine the dynamics of a seizure event.
Claims31
A system for determining the dynamics of seizures, the system comprising:
- one or more processor units capable of receiving an electrical signal, the electrical signal being collected from one or more electrodes disposed on the head or scalp of a patient, the one or more processor units including;
- a first analysis module configured to analyze said electrical signal in a first frequency band within a range from about 32 Hz to about 512 Hz to provide a first output signal;
- a second analysis module configured to analyze said electrical signal in a second frequency band within a range from about 2 Hz to about 16 Hz to provide a second output signal;
- and
- a time-point extraction module configured to compare at least one of the first output signal or said second output signal to at least one threshold value and to determine a starting point of at least one seizure event phase based on meeting the at least one threshold value.
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A system for monitoring a patient for seizure activity, the system comprising:
- one or more sensor units, at least one of the one or more sensor units including one or more electrodes, the one or more electrodes configured to be disposed on the head or scalp of a patient;
- a processor unit capable of receiving an electrical signal collected from said one or more electrodes, the processor unit configured to analyze the received electrical signal for detection of seizure events based on muscle-related electrical activity, the processor unit including;
- a first analysis module configured to analyze the received electrical signal within a first frequency band to provide a first output signal, the first frequency band associated with tonic-clonic seizure activation of muscle;
- and
- a second analysis module configured to analyze the received signal within a second frequency band to provide a second output signal, the second frequency band associated with clonic phase seizure activation of muscle to provide a second output signal.
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A method of analyzing the dynamics of a seizure, the method comprising:
- collecting a signal from one or more electrodes positioned on the head or scalp of a patient;
- filtering the collected signal to provide a first frequency band associated with muscle-related electrical activity elevated during a patient seizure;
- filtering the collected signal to provide a second frequency band associated with muscle-related electrical activity elevated during a clonic-phase of a patient seizure;
- processing the signal in one or more of said first frequency band and said second frequency band to determine a starting point and an ending point of a seizure or seizure-related event;
- and
- using the starting point and an ending point of said seizure or seizure-related event to determine the dynamics of said seizure or seizure-related event.
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Dependencies are inferred from the claim text.