Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1994-10-24
1996-03-05
Williams, Hezron E.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
73 233, 128719, 422 84, 436900, G01N 33497, A61B 500, A61B 1000
Patent
active
054957443
ABSTRACT:
A first sample measuring passage provided between a collection port and a suction pump has a sample gas measurer for measuring expiration components, while a second sample measuring passage which is provided in parallel with the first sample measuring passage has a standard gas measurer for measuring O.sub.2 gas. Assuming that [A] represents a measured value of a target component in an expiration sample and [b.sub.1 ] represents O.sub.2 concentration in the expiration sample, correction is made on the basis of:
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Villarroel, "A Breath to Breath CO.sub.2 Concentration Monitor with Flueric Sensor", 24th ACEMB, p. 250, 3 Nov. 1971.
Gang Meng
Hiromoto Mitsuo
Ueda Hideo
Yamasaki Yutaka
Kyoto Dai-Ichi Kagaku Co., Ltd.
Larkin Daniel S.
Williams Hezron E.
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