Method and apparatus for classification of seizure type and severity using electromyography
First Claim
Patent Images
1. A method of triggering a seizure detection alarm, the method comprising:
- providing a portable EMG detection unit including one or more EMG electrodes and including a portable EMG detection unit processor;
collecting an EMG signal using said portable EMG detection unit, the portable EMG detection unit configured for executing a first seizure detection routine and a second seizure detection routine;
executing said first seizure detection routine using said portable EMG detection unit to generate a first output response, said first seizure detection routine configured to be responsive to tonic-phase seizure activity based on detection of a threshold amplitude level of said EMG signal;
executing said second seizure detection routine using said portable EMG detection unit to generate a second output response, said second seizure detection routine configured to respond selectively to clonic-phase seizure activity based on detection of qualified transient elevations in said EMG signal, said transient elevations being qualified based on a duration of elevation;
communicating said first output response and said second output response to said portable EMG detection unit processor;
using said portable EMG detection unit processor for categorizing whether one or more detected events are associated with different types of seizure activity based on whether said one or more detected events are associated with said first output response, said second output response, or a combination of said first output response and said second output response;
selecting an alarm transmission protocol included among a group of selectable alarm transmission protocols based on said categorizing of said one or more detected events;
wherein said alarm transmission protocols include sending one or more warning messages or one or more emergency messages, to one or more caregivers;
said one or more warning messages being configured to inform at least one of said one or more caregivers that a seizure may have occurred;
said one or more emergency messages being configured to instruct at least one of said one or more caregivers to check on the health status of said patient; and
executing said alarm transmission protocol.
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Abstract
A method and apparatus for monitoring a patient for seizure activity including collecting and processing EMG signal data and categorizing the detected data to execute risk stratification. A transmission protocol that is tailored for detected events may be selected and executed.
90 Citations
11 Claims
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1. A method of triggering a seizure detection alarm, the method comprising:
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providing a portable EMG detection unit including one or more EMG electrodes and including a portable EMG detection unit processor; collecting an EMG signal using said portable EMG detection unit, the portable EMG detection unit configured for executing a first seizure detection routine and a second seizure detection routine; executing said first seizure detection routine using said portable EMG detection unit to generate a first output response, said first seizure detection routine configured to be responsive to tonic-phase seizure activity based on detection of a threshold amplitude level of said EMG signal; executing said second seizure detection routine using said portable EMG detection unit to generate a second output response, said second seizure detection routine configured to respond selectively to clonic-phase seizure activity based on detection of qualified transient elevations in said EMG signal, said transient elevations being qualified based on a duration of elevation; communicating said first output response and said second output response to said portable EMG detection unit processor; using said portable EMG detection unit processor for categorizing whether one or more detected events are associated with different types of seizure activity based on whether said one or more detected events are associated with said first output response, said second output response, or a combination of said first output response and said second output response; selecting an alarm transmission protocol included among a group of selectable alarm transmission protocols based on said categorizing of said one or more detected events; wherein said alarm transmission protocols include sending one or more warning messages or one or more emergency messages, to one or more caregivers; said one or more warning messages being configured to inform at least one of said one or more caregivers that a seizure may have occurred; said one or more emergency messages being configured to instruct at least one of said one or more caregivers to check on the health status of said patient; and executing said alarm transmission protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for monitoring a patient for seizure activity and executing an alarm, the system comprising:
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a portable EMG detection unit including one or more EMG electrodes configured to provide an EMG signal, a portable EMG detection unit processor, and a transceiver; said portable EMG detection unit processor configured to; receive said EMG signal; process said EMG signal to detect one or more events indicating an increased risk of said seizure activity; analyze said EMG signal using a combination of at least two seizure detection routines configured for the detection of said one or more events; wherein said at least two seizure detection routines include a first seizure detection routine configured to initiate a positive response to tonic-phase seizure activity based on a detection of a threshold level EMG signal amplitude, and a second seizure detection routine configured to initiate a positive response selectively to clonic-phase seizure activity based on detection of transient elevations in signal qualified based on a duration width; categorize whether one or more detected events are associated with different types of seizure activity based on whether said one or more events are associated with a response in said first seizure detection routine, a response in said second seizure detection routine, or a response in a combination of said first seizure detection routine and said second seizure detection routine; and select an alarm transmission protocol included among a group of selectable alarm transmission protocols based on the categorization of said one or more events; wherein said alarm transmission protocols include sending one or more warning messages, one or more emergency messages, or a combination of both said one or more warning messages and said one or more emergency messages to one or more caregivers; wherein said one or more warning messages are configured to inform at least one of said one or more caregivers that a seizure may have occurred; wherein said one or more emergency messages are configured to instruct at least one of said one or more caregivers to check on the health status of said patient; and said transceiver configured to transmit said one or more warning messages, said one or more emergency messages, or a combination of said one or more warning messages and said one or more emergency messages to a base station or one or more caregivers based on said selected alarm transmission protocol. - View Dependent Claims (10, 11)
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Specification