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Distinguishing closed and open respiratory airway apneas by complex admittance values
专利权人:
ResMed Limited
发明人:
Huby, Ronald James,Bassin, David John,Goeldi, Benriah,Oates, John David
申请号:
AU2007291951
公开号:
AU2007291951B2
申请日:
2007.08.30
申请国别(地区):
AU
年份:
2013
代理人:
摘要:
Methods and apparatus are disclosed for determining the occurrence of a closed oropen apnea. Respiratory air flow from a patient is measured to give an air flow signal.The determination of an apnea is performed by applying an oscillatory pressurewaveform of known frequency to a patient's airway, calculating a complexquantity representing a patient admittance (12) and comparing its value withranges (14,16) indicative of open or closed apneas. The method distinguishes openfrom closed apneas even when the model used to calculate admittance is not basedon details of the respiratory apparatus. In addition the patient admittance maybe compared with admittance during normal breathing to avoid having to characterize theairway.
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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