Apnea/hypopnea detection system and method
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United States of America Patent
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Oct 10, 2006
Grant Date -
Jan 27, 2005
app pub date -
Jul 21, 2004
filing date -
Jul 25, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An apnea/hypopnea detection system and method that monitors a patient's respiratory flow, determines (a) a long term RMS energy based on the flow, (b) a long term threshold determined based on the long term RMS energy, and (c) a short term RMS energy based on the flow. Determining whether the patient is experiencing an apnea/hypopnea is accomplished by comparing the short term RMS energy with the long term threshold. This A/H detection technique is useful in diagnosing a patient for a breathing disorder, such as OSA, and/or for controlling an auto-titration pressure support system.
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