Nasal cannula
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United States of America Patent
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Aug 27, 2002
Issued Date -
N/A
app pub date -
Nov 2, 1998
filing date -
Apr 3, 1998
priority date (Note) -
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Abstract
An apparatus for insufflating a treating gas into a patient and for measuring a carbon dioxide content exhaled by the patient includes a hollow body with a partitioning wall separating the body into inhalation and exhalation manifolds. Two hollow prongs have coaxial openings close to the body which allow gas exchange for breathing and carbon dioxide measuring purposes. The holes are of a size such that suction drawn through the holes is limited while still allowing accurate gas analysis.
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