Obstructive sleep apnea syndrome screening system
A technology of sleep apnea and apnea, which is applied in the field of sleep diseases, and can solve the problems of expensive sleep laboratory, long detection time, and impact on patients' sleep quality
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[0138] Embodiment 1: Detect the central electrical signal and respiratory signal of the subject in the sleep process, and judge whether the heart rate beat conforms to the heart rate value in the sleep process by measuring the heart rate beat of the subject during the sleep process, and use the radial basis The kernel function distinguishes the heart rate value of normal respiration in the ECG signal from the heart rate value of abnormal signal, and uses the cubic spline fitting value method to calculate the average value of the envelope, so that the peak and trough in the respiration signal can be More obviously, the waveform method is used to determine the degree of onset of sleep apnea by using the envelope peak point and trough point in the respiratory signal.
[0139] Use the findpeak function to detect the time interval in the respiratory signal, and set the first respiratory signal of an adjacent peak point in the sleep respiratory signal of the subject to be Y i , Y i...
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