DETERMINATION OF SLEEP QUALITY FOR NEUROLOGICAL DISORDERS
First Claim
1. A method comprising:
- delivering a therapy from a medical device according to a first set of therapy parameters to a patient to treat a neurological disorder of the patient;
sensing electrical activity of the brain of the patient during the delivery of the therapy to the patient according to the first set of therapy parameters;
determining sleep states of the patient based on the sensed electrical activity of the brain of the patient, wherein determining the sleep states of the patient includes comparing the relative power levels of different frequency bands of the sensed electrical activity of the brain of the patient; and
after delivering the therapy according to the first set of therapy parameters, delivering the therapy according to a second set of therapy parameters, the second set of therapy parameters being modified as compared to the first set of therapy parameters based on the determined sleep states.
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Abstract
A device determines values for one or more metrics that indicate the quality of a patient'"'"'s sleep based on sensed physiological parameter values. Sleep efficiency, sleep latency, and time spent in deeper sleep states are example sleep quality metrics for which values may be determined. The sleep quality metric values may be used, for example, to evaluate the effectiveness of a therapy delivered to the patient by a medical device. In some embodiments, determined sleep quality metric values are automatically associated with the therapy parameter sets according to which the medical device delivered the therapy when the physiological parameter values were sensed, and used to evaluate the effectiveness of the various therapy parameter sets. The medical device may deliver the therapy to treat a non-respiratory neurological disorder, such as epilepsy, a movement disorder, or a psychological disorder. The therapy may be, for example, deep brain stimulation (DBS) therapy.
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Citations
22 Claims
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1. A method comprising:
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delivering a therapy from a medical device according to a first set of therapy parameters to a patient to treat a neurological disorder of the patient; sensing electrical activity of the brain of the patient during the delivery of the therapy to the patient according to the first set of therapy parameters; determining sleep states of the patient based on the sensed electrical activity of the brain of the patient, wherein determining the sleep states of the patient includes comparing the relative power levels of different frequency bands of the sensed electrical activity of the brain of the patient; and after delivering the therapy according to the first set of therapy parameters, delivering the therapy according to a second set of therapy parameters, the second set of therapy parameters being modified as compared to the first set of therapy parameters based on the determined sleep states. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical system comprising:
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a medical device configured to deliver a therapy to a patient to treat a neurological disorder of the patient; a sensor configured to sense electrical activity of the brain of the patient during the delivery of the therapy to the patient; and a processor configured to determine sleep states of the patient based on the sensed electrical activity of the brain of the patient, wherein determining the sleep states of the patient includes comparing the relative power levels of different frequency bands of the sensed electrical activity of the brain of the patient, and further configured to select therapy parameters for the delivery of the therapy based on the determined sleep states, wherein the medical device is configured to deliver the therapy according to the therapy parameters selected by the processor based on the determined sleep states. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification