Correlating a non-polysomnographic physiological parameter set with sleep states
First Claim
1. A method comprising:
- identifying sleep states of a subject during a period of time based on polysomnography;
recording values of a non-polysomnographic physiological parameter set of the subject during the period of time;
subsequent to identifying the sleep states and recording the values of the non-polysomnographic physiological parameter set, correlating the recorded values of the non-polysomnographic physiological parameter set to the identified sleep states using a computing device;
subsequent to correlating the recorded values to the identified sleep states, analyzing the correlated values of the non-polysomnographic physiological parameter set using the computing device;
subsequent to analyzing the correlated values, calculating a relationship between values of the non-polysomnographic physiological parameter set and sleep states based on the analysis using the computing device; and
subsequent to calculating the relationship, storing the relationship between values of the non-polysomnographic physiological parameter set and sleep states in a medical device, wherein the medical device is configured to apply the relationship to a non-polysomnographic physiological parameter to identify sleep states based on the relationship.
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Accused Products
Abstract
Values of a non-polysomnographic (non-PSG) physiological parameter set may be correlated to polysomnographically (PSG) determined sleep states. The correlated values of the non-PSG parameter set and sleep states may be analyzed, and a relationship between the values and sleep states may be determined. The relationship may allow determination of sleep states for any given patient based on values of the non-PSG physiological parameter set for the patient. The non-PSG physiological parameter set does not include physiological parameters typically required for PSG, such as brain electrical activity (EEG), eye movement (EOG), and jaw or neck muscular activity or tone (EMG). Medical devices, such as implantable medical devices (IMDs) that would generally be unable to monitor such physiological parameters, may apply the relationship to values of the non-PSG physiological parameter set for a patient to identify sleep states of the patient.
179 Citations
36 Claims
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1. A method comprising:
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identifying sleep states of a subject during a period of time based on polysomnography; recording values of a non-polysomnographic physiological parameter set of the subject during the period of time; subsequent to identifying the sleep states and recording the values of the non-polysomnographic physiological parameter set, correlating the recorded values of the non-polysomnographic physiological parameter set to the identified sleep states using a computing device; subsequent to correlating the recorded values to the identified sleep states, analyzing the correlated values of the non-polysomnographic physiological parameter set using the computing device; subsequent to analyzing the correlated values, calculating a relationship between values of the non-polysomnographic physiological parameter set and sleep states based on the analysis using the computing device; and subsequent to calculating the relationship, storing the relationship between values of the non-polysomnographic physiological parameter set and sleep states in a medical device, wherein the medical device is configured to apply the relationship to a non-polysomnographic physiological parameter to identify sleep states based on the relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system comprising
a first plurality of sensors that sense a polysomnographic physiological parameter set of a subject; -
a second plurality of sensors that sense a non-polysomnographic physiological parameter set of the subject; a processor that receives signals sensed by the first and second pluralities of sensors during a period of time, determines values of the polysomnographic physiological parameter set and the non-polysomnographic physiological parameter set based on the signals, identifies sleep states based on values of the polysomnographic physiological parameter set, subsequent to determining the values of the non-polysomnographic physiological parameter set and identifying the sleep states, correlates the values of the non-polysomnographic physiological parameter set with sleep states identified based on values of the polysomnographic physiological parameter set, subsequent to correlating the recorded values to the identified sleep states, analyzes the correlated values of the non-polysomnographic physiological parameter set, and, subsequent to analyzing the correlated values, calculates a relationship that relates values of the non-polysomnographic physiological parameter set to sleep states based on the analysis; and a medical device comprising a memory that, subsequent to the processor calculating the relationship, stores the relationship between values of the non-polysomnographic physiological parameter set and sleep states, wherein the medical device is configured to apply the relationship to a non-polysomnographic physiological parameter to identify sleep states based on the relationship. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A system comprising:
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means for identifying sleep states of a subject during a period of time based on polysomnography; means for recording values of a non-polysomnographic physiological parameter set of the subject during the period of time; means for correlating the recorded values of the non-polysomnographic physiological parameter set to the sleep states identified by polysomnography during the period of time subsequent to identifying the sleep states and recording the values of the non-polysomnographic physiological parameter set; means for analyzing the correlated values of the non-polysomnographic physiological parameter set subsequent to correlating the recorded values to the identified sleep states; means for calculating a relationship between values of the non-polysomnographic physiological parameter set and sleep states based on the analysis subsequent to analyzing the correlated values; and means for storing the relationship between values of the non-polysomnographic physiological parameter set and sleep states in a medical device to determining the relationship wherein the medical device is configured to apply the relationship to a non-polysomnographic physiological parameter to identify sleep states based on the relationship. - View Dependent Claims (34)
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35. A non-transitory computer-readable medium comprising instructions that cause a programmable processor to:
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identify sleep states of a subject during a period of time based on polysomnography; record values of a non-polysomnographic physiological parameter set of the subject during a period of time; subsequent to identifying the sleep states and recording the values of the non-polysomnographic physiological parameter set, correlate the recorded values of the non-polysomnographic physiological parameter set to the sleep states identified by polysomnography during the period of time; subsequent to correlating the recorded values to the identified sleep states, analyze the correlated values of the non-polysomnographic physiological parameter set; subsequent to analyzing the correlated values, calculate a relationship that relates values of the non-polysomnographic physiological parameter set to sleep states based on the analysis; and subsequent to calculating the relationship, store the relationship between values of the non-polysomnographic physiological parameter set and sleep states in a medical device, wherein the medical device is configured to apply the relationship to a non polysomnographic physiological parameter to identify sleep states based on the relationship. - View Dependent Claims (36)
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Specification