| 摘要 |
PROBLEM TO BE SOLVED: To provide a new oxygen consumption meter by which oxygen consumption is measured without using an oxygen sensor. SOLUTION: Relating to the oxygen consumption meter an inspired air flow rate, an expired air flow rate and the density of carbon dioxide in an expiration are measured and oxygen, etc., taken-in to blood is measured by the values. The expired air flow rate (Qo) and the inspired air flow rate (Qi) are measured by an inspiration and expiration shared flow rate meter 21 and the values are inputted to an arithmetic equipment 7. In the meantime, a part of the expiration flows in an expiration bypass flow path 3 and flows into a carbon dioxide density detecting part 5, the carbon dioxide density (ρo(CO2 )) in the expiration is measured by the carbon dioxide sensor (CO2 ) 51, the value is inputted to the arithmetic equipment 7 and an oxygen quantity (Qm) to be taken-in to the blood, that is, oxygen consumption is obtained by the equipment 7.
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