Abstract: A sleep apnea assessment method includes the following steps. A sleep apnea assessment system is provided. A target ECG signal data of the subject is obtained. A data pre-processing step is performed so as to obtain a target ECG time-frequency data, and the target ECG time-frequency data is processed so as to obtain a plurality of target time-frequency segment data. An assessing step of apnea event is performed so as to output an assessing result of sleep apnea event of each of the plurality of target time-frequency segment data, and the assessing result of sleep apnea event is for assessing whether the subject has the sleep apnea event in any one of the plurality of target time-frequency segment data or not and predicting a probability of an occurrence of sleep apnea event of the subject.

Abstract: A percussion apparatus for sputum clearance includes a percussion unit, a drive unit, and a control unit, the percussion unit includes a percussion member and an angle detector, the angle detector is configured to detect an included angle between the reference plane and a horizontal plane, the control unit is electrically connected with the drive unit, and when the included angle conforms to a preset angle, the control unit controls the drive unit to drive the percussion unit to periodically percuss, which greatly saves the manpower and increase the efficiency of sputum clearance.