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METHOD AND APPARATUS FOR IMPROVED FLOW LIMITATION DETECTION OF OBSTRUCTIVE SLEEP APNEA
专利权人:
发明人:
申请号:
EP07718545.2
公开号:
EP1996267B1
申请日:
2007.03.06
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
The present invention relates to a respiratory apparatus, comprising a flow detecting device to sense respiration and generate an inspiratory wave pattern, and a controller coupled to the flow detecting device, the controller configured to decompose the inspiratory wave pattern into a matrix pair of basis vectors that are orthogonal, fit the basis vectors to the inspiratory waveform pattern, determine factors associated with the basis vectors from the fitting, and identify a presence of a flow limited shape in the inspiratory wave pattern based on a function of the factors, whereby the flow limited shape indicative of an M shape may be detected.
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