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SYSTEM AND METHODS OF ACOUSTICAL SCREENING FOR OBSTRUCTIVE SLEEP APNEA DURING WAKEFULNESS
专利权人:
UNIVERSITY OF MANITOBA
发明人:
MOUSSAVI, ZAHRA,MONTAZERIPOURAGHA, AMANALLAH
申请号:
EP11792006
公开号:
EP2575613A4
申请日:
2011.05.24
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
A system and methods using tracheal sound intensity variations to screen patients suspected of obstructive sleep apnea during wakefulness. The system includes a mechanism positioning the patient and a sound input device attached to a recording device to receive breathing sound signals. A signal conditioning component amplifies and filters the breathing sound signals, and an analog to digital component digitizes the signals. A detecting component detects onsets of respiratory phases, and a separating component separates inspiratory sound signals and expiratory sound signals from the breathing sound signals. A segmenting component segments the inspiratory and expiratory phase signals into a short duration of overlapping windows, and a collection characteristic extraction component obtains characteristics from each window. A calculation component performs statistical analysis to reduce the number of significant characteristics and classify the patient as OSA or non-OSA and predicts severity of the OSA as one of mild, moderate and severe.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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