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公开(公告)号：US6038913A
公开(公告)日：2000-03-21
申请号：US45374
申请日：1998-03-20
IPC分类号： A61B5/08 , A61B5/083 , A61B5/087 , A61B5/097 , G01N33/497
CPC分类号： A61B5/0813
摘要： A device for determining the level of nitric oxide in an exhaled airstream belonging to a living organism selected to have its lung function evaluated, where an initial device is arranged to determine the current portion of nitric oxide and/or the distribution of nitric oxide over time during an exhalation phase. During the commencing period of the exhalation phase, the exhaled air is arranged to pass with no or with only a very small resistance or back-pressure to a free space, and during the remaining period, the exhaled air is arranged to pass through the initial device against the action of a suitable resistance or back-pressure. The level of nitric oxide is measured during this remaining period.
摘要翻译： 一种用于确定属于生物体的呼出气流中的一氧化氮水平的装置，其被选择用于评估其肺功能，其中初始装置被布置以确定当前氧化一氧化氮部分和/或一氧化氮随时间的分布 在呼气阶段。 在呼气阶段的开始期间，呼出的空气被布置成没有或仅具有非常小的电阻或背压到自由空间，并且在剩余时间期间，呼出的空气被布置成通过初始 装置抵抗适当的阻力或背压的作用。 在此剩余期间测量一氧化氮的水平。
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公开(公告)号：US06723056B1
公开(公告)日：2004-04-20
申请号：US09688860
申请日：2000-10-17
IPC分类号： A61B500
CPC分类号： A61B5/411 , A61B5/097 , G01N33/497
摘要： A gas sample containing an inorganic constituent, such as a sample of exhaled air is collected in a bag (b 1) comprising an inlet/outlet (2) and a reagent chamber (3) which makes possible the storage and transport of said sample and thus enables efficient and repeatable off-line determinations of inorganic components in said sample. A sample collection device, a system comprising said device and a method of its use is disclosed.
摘要翻译： 含有无机成分（如呼出空气样品）的气体样品被收集在包括入口/出口（2）和试剂室（3）的袋子（b 1）中，所述袋子（2）和试剂室（3）使得所述样品的储存和运输成为可能， 从而能够对所述样品中的无机组分进行有效和可重复的离线测定。 公开了一种样品收集装置，包括所述装置的系统及其使用方法。
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公开(公告)号：US6099480A
公开(公告)日：2000-08-08
申请号：US125872
申请日：1999-05-14
申请人： Lars Erik Gustafsson
发明人： Lars Erik Gustafsson
CPC分类号： G01N33/0037 , G01N21/76 , G01N33/497
摘要： The present invention relates to apparatus for determining a relevant proportion (a) of a chosen gas, an NO-gas or NO.sub.2 -gas, present in a gas mixture (A), such as in a gas mixture deriving from the expiration air or inspiration air of a living being (1), wherein an adapted sample proportion of the breathing air is passed from an outlet (11) in the immediate vicinity of said being, via a hose (10') or the like, to measuring equipment (13') that includes a measuring chamber (14') that is placed under a subpressure and to which ozone gas is also supplied, wherewith the nitrogen oxide present reacts with the ozone-gas to form NO.sub.2 and light, and wherein the apparatus includes a light measuring unit (13') which is adapted to evaluate the light thus generated and to calculate (18) the amount of predominant gas in the breathing air on the basis of this evaluation. The volume (14b') of the measuring chamber of such apparatus is adapted to include the volume enclosed in the hose (10') used. The hose-related valve (11a') or constriction that delimits the subpressure volume of the measuring chamber is provided in the close proximity of the being (1). A means (30) for reducing the water vapour in the breathing air sample (A), e.g. by cooling and/or freezing, is adapted upstream of the measuring chamber (14') to reduce or eliminate precipitation of water in the measuring chamber.
摘要翻译： PCT No.PCT / SE97 / 00159 Sec。 371日期1999年5月14日 102（e）日期1999年5月14日PCT提交1997年2月1日PCT公布。 出版物WO97 / 32210 日期1997年9月4日本发明涉及用于确定气体混合物（A）中存在的选定气体，NO气体或NO 2气体的相关比例（a）的装置，例如来自 活体（1）的呼气或呼吸空气，其中呼吸空气的适应样品比例通过软管（10'）等从所述出口（11）通过， 包括设置在副压力下并且还供应臭氧气体的测量室（14'）的测量设备（13'），其中存在的氮氧化物与臭氧气体反应以形成NO 2和光，并且其中 所述装置包括光测量单元（13'），其适于评估由此产生的光，并且基于该评估计算（18）呼吸空气中的主要气体的量。 这种装置的测量室的体积（14b'）适于包括封闭在所使用的软管（10'）中的体积。 在与（1）的非常接近的地方设置限定测量室的负压容积的软管相关阀（11a'）或缩颈。 一种用于减少呼吸空气样品（A）中的水蒸气的装置（30），例如， 通过冷却和/或冷冻来适应测量室（14'）的上游，以减少或消除测量室中的水的沉淀。
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