Ambulatory sleepiness and apnea propensity evaluation system
First Claim
1. A method of screening for sleep apnea comprising the steps of:
- a) measuring EEG signals of a subject using a sensor and analyzing EEG signals from the subject to a determine sleep onset time(s) over a measurement period;
b) measuring respirations of the subject using a sensor and analyzing respirations of the subject to determine variability of the subject'"'"'s respiration about the sleep onset time(s); and
c) determining whether the subject has sleep apnea based in part on the variability of the subject'"'"'s respirations about the sleep onset time(s).
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Abstract
The present invention relates to a method of analyzing a subject for excessive daytime sleepiness, and more particularly to a quick (short duration), quantitative method of analyzing a subject for sleep apnea. The present invention additionally relates a device for use in detecting excessive daytime sleepiness (EDS) and another device for detecting sleep apnea. One embodiment of the present invention includes a method of screening for sleep apnea comprising of measuring EEG signals from a subject to determine sleep onset time(s) over a measurement period, as well as measuring and analyzing respirations of the subject to determine variability of the subject'"'"'s respiration about the sleep onset time(s). A determination about whether the subject has sleep apnea will be based in part on the variability of the subject'"'"'s respirations about the sleep onset time(s).
62 Citations
20 Claims
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1. A method of screening for sleep apnea comprising the steps of:
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a) measuring EEG signals of a subject using a sensor and analyzing EEG signals from the subject to a determine sleep onset time(s) over a measurement period; b) measuring respirations of the subject using a sensor and analyzing respirations of the subject to determine variability of the subject'"'"'s respiration about the sleep onset time(s); and c) determining whether the subject has sleep apnea based in part on the variability of the subject'"'"'s respirations about the sleep onset time(s). - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of screening for sleep apnea comprising the steps of:
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a) measuring EEG signals of a subject using a sensor and analyzing EEG signals from the subject to a determine sleep onset time(s) over a measurement period; b) measuring respirations of the subject using a sensor and analyzing respirations of the subject to determine variability of the subject'"'"'s respiration about the sleep onset time(s); c) detecting an increase in respiratory variability about the sleep onset time(s) based at least in part on the measured and analyzed respirations of the subject; d) determining whether the subject is likely to suffer from sleep apnea based at least in part on the increase in respiratory variability; and e) scheduling the subject for a full or partial polysomnograph if the subject is likely to suffer from sleep apnea. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of screening for sleep apnea comprising the steps of:
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a) using a sensor to measure EEG signals of a subject over a measurement time period of less than about 60 minutes; b) using a sensor to measure respirations of the subject over the measurement time period of less than about 60 minutes; c) using a processing unit to analyze EEG signals from the subject to determine a sleep onset time(s) from the measured EEG signal; d) analyzing with the processing unit a variability of the subject'"'"'s respirations about the sleep onset time(s); and e) determining whether the subject is likely to suffer from a respiratory-related sleep disorder based at least in part on variability of the subject'"'"'s respirations about the sleep onset time(s). - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification