NASAL CANNULA FOR ACQUIRING BREATHING INFORMATION
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United States of America Patent
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N/A
Issued Date -
May 6, 2010
app pub date -
Feb 22, 2008
filing date -
Apr 29, 1997
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A nasal cannula for monitoring symptoms of sleep apnea and hypopnea, including an elongated main body having a main body chamber and first and second nares to be received within first and second nasal passages of a patient's nose and at least one mouthpiece extending to a patient's mouth. The main body chamber communicates with first and second cannula inlet/outlets and each nare and the mouthpiece includes a gas flow passage extending from the nostril or mouth to the main body chamber. At least one nasal gas flow sensor is located in an gas flow passage of at least one of the nares and at least one oral gas flow sensor located in the mouthpiece gas flow passage, preferably in the regions of the gas flow passages adjacent the main body chamber.
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