发明名称 |
Determining the carbon dioxide content of an exhaled gas stream |
摘要 |
A method for the determination of the carbon dioxide content of an exhaled gas stream, such as a patient's breath is provided, the method comprising measuring the water vapour content (humidity) of the exhaled gas stream; and determining the concentration of carbon dioxide in the exhaled gas stream from the measured water vapour content. A particular method comprises causing the gas stream to impinge on a sensing element 8 of a sensor 2 comprising a working electrode 12 and a counter electrode 14; applying an electric potential across the working electrode and counter electrode; measuring the current flowing between the working electrode and counter electrode as a result of the applied potential; and determining from the measured current flow an indication of the concentration of the water vapour in the gas stream. |
申请公布号 |
GB2443023(A) |
申请公布日期 |
2008.04.23 |
申请号 |
GB20060020711 |
申请日期 |
2006.10.18 |
申请人 |
ANAXSYS TECHNOLOGY LIMITED |
发明人 |
MARK VARNEY;MICHAEL E GARRETT;DERYK WILLIAMS |
分类号 |
G01N33/497;G01N27/407 |
主分类号 |
G01N33/497 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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