Implantable Device Employing Movement Sensing for Detecting Sleep-Related Disorders
First Claim
1. A medical system, comprising:
- one or more movement sensors configured to sense movement of skeletal musculature, the one or more movement sensors including at least an electromyogram sensor;
a sleep-disordered breathing (SDB) sensor configured to sense a parameter associated with sleep-disordered breathing events; and
circuitry communicatively coupled to the one or more movement sensors and the SDB sensor, the circuitry configured to detect sleep-disordered breathing events based on the sensed parameter and to detect involuntary muscle movement events using signals produced by the one or more movement sensors, the circuitry configured to determine a composite sleep disorder index, the composite sleep disorder index quantifying combined effect of the involuntary muscle movement events and the sleep-disordered breathing events.
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Abstract
Methods and systems for evaluating a pathological condition include acquiring movement information, such as electromyogram (EMG) information, and sleep disordered breathing (SDB) information, and detecting the presence of a pathological condition using both movement and SDB information. Methods may involve sensing physiological signals including at least muscle movement signals. Sleep-related disorders are detected using the sensed physiological signals, the sleep-related disorders including at least an involuntary muscle movement disorder and sleep-disordered breathing. Methods and systems also provide for detecting and treating a sleep-related disorder using movement and SDB information. Cardiac, respiratory, nerve stimulation, drug, or a combination of such therapies may be delivered to treat a detected or diagnosed pathological condition.
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Citations
16 Claims
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1. A medical system, comprising:
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one or more movement sensors configured to sense movement of skeletal musculature, the one or more movement sensors including at least an electromyogram sensor; a sleep-disordered breathing (SDB) sensor configured to sense a parameter associated with sleep-disordered breathing events; and circuitry communicatively coupled to the one or more movement sensors and the SDB sensor, the circuitry configured to detect sleep-disordered breathing events based on the sensed parameter and to detect involuntary muscle movement events using signals produced by the one or more movement sensors, the circuitry configured to determine a composite sleep disorder index, the composite sleep disorder index quantifying combined effect of the involuntary muscle movement events and the sleep-disordered breathing events. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system, comprising:
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a plurality of sensors configured to respectively sense a plurality of physiological signals including at least muscle movement signals comprising electromyogram signals; a detector configure to detect sleep-related disorder events using the sensed physiological signals, the sleep-related disorder events comprising involuntary muscle movement events of non-respiratory muscles and sleep-disordered breathing events, the detection of the sleep-disordered breathing events and the involuntary muscle movement events based at least in part on the electromyogram signals; and a processor configured to calculate a composite sleep disorder index, the composite sleep disorder index quantifying combined effect of the involuntary muscle movement events and the sleep-disordered breathing events, wherein at least one of calculating and detecting is implemented at least in part patient-internally. - View Dependent Claims (13, 14, 15, 16)
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Specification