Low power device with contingent scheduling
AssigneeLivaNovaUSA, Inc.
InventorKent Leyde
Life of this patent
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Abstract
Medical device systems and methods for operating medical device systems conserve energy by efficiently managing computational demands of the systems. A first analysis, having relatively lower computational processing demand than at least a second analysis, processes signals from a subject to determine a first estimate of a propensity for the subject to have a neurological event. If the first estimate meets a set of specified criteria, a second analysis is performed to determine a second estimate of the propensity for the subject to have a neurological event.
Claims20
A method of operating a medical device configured to monitor a subject, the method comprising:
- receiving, at a processor, a first signal reflective of neurological activity of the subject from a sensor communicating with the subject;
- performing, by the processor, a first analysis of the first signal to estimate a first deviation of the subject from a normal neurological condition, including analyzing the first signal by a first set of feature extractors, in response to receiving the first signal;
- determining that the first deviation meets one or more specified criteria;
- subsequent to the first deviation meeting the one or more specified criteria, receiving, at the processor, a second signal reflective of neurological activity of the subject;
- and
- performing, by the processor, a second analysis of the second signal to estimate a second deviation of the subject from the normal neurological condition, including analyzing the second signal by a second set of feature extractors different from the first set of feature extractors, the first analysis requiring less computational power than the second analysis, in response to receiving the second signal.
A system configured to monitor a subject, comprising:
- a processor;
- and
- a non-transitory computer-readable medium storing instructions that, when executed by the processor, cause the processor to:
- receive a first signal reflective of neurological activity of the subject from a sensor communicating with the subject;
- perform a first analysis of the first signal to estimate a first deviation of the subject from a normal neurological condition, including analyzing the first signal by a first set of feature extractors, in response to receiving the first signal;
- determine that the first deviation meets one or more specified criteria;
- receive a second signal reflective of neurological activity of the subject subsequent in time to the first signal in response to transitioning the processor from a base mode to an advanced mode;
- and
- perform a second analysis of the second signal to estimate a second deviation of the subject from the normal neurological condition, including analyzing the second signal by a second set of feature extractors different from the first set of feature extractors, the first analysis requiring less computational power than the second analysis, in response to receiving the second signal.
Dependencies are inferred from the claim text.