MASK ASSEMBLY, SYSTEM AND METHOD FOR DETERMINING THE OCCURRENCE OF RESPIRATORY EVENTS USING FRONTAL ELECTRODE ARRAY
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United States of America Patent
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Issued Date -
Sep 6, 2007
app pub date -
Apr 26, 2007
filing date -
May 18, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Embodiments of the invention relate to methods, systems and mask assemblies for use in determining the occurrence of respiratory events using a frontal electrode array. The methods, systems and mask assemblies involve use of means for flow measurement of breathing gas of a person, blood oxygen saturation measurement means and a frontal electrode array for measuring frontal bioelectric signals, each of which is coupled to a processing unit. The processing unit is configured to determine the occurrence of at least one of an apnea event and a hypopnea event based on the measurement signals. Some embodiments involve calculation of an apnea-hypopnea index (AHI) based on the determined apnea and hypopnea events over a period of time.
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