Analysis of sleep apnea
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United States of America Patent
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Aug 30, 2005
Grant Date -
Jul 24, 2003
app pub date -
Jan 22, 2003
filing date -
Jan 22, 2002
priority date (Note) -
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Abstract
A non-intrusive and quantitative method and apparatus for diagnosing sleep apnea and detecting apnea events by monitoring during sleep abdominal effort and thoracic effort, determining the phase of each effort, determining the difference in phase between each type of effort, and then determining the rate of phase angle change and standard deviation over time. Also provided may be treatment when apnea events are detected to trigger therapy apparatus such as airway positive pressure apparatus.
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