METHOD AND APPARATUS OF DETERMINING EXHALED NITRIC OXIDE
    9.
    发明申请
    METHOD AND APPARATUS OF DETERMINING EXHALED NITRIC OXIDE 审中-公开
    测定排出的氮氧化物的方法和装置

    公开(公告)号:WO2011013046A1

    公开(公告)日:2011-02-03

    申请号:PCT/IB2010/053361

    申请日:2010-07-23

    IPC分类号: A61B5/08 G01N33/497

    CPC分类号: A61B5/082

    摘要: A method and apparatus of determining the level of exhaled nitric oxide (NO) is disclosed. The method involves measuring the level of exhaled NO (34) and the corresponding exhalation flow rate in one or more exhalations (30, 32) of a tidal breathing manoeuvre performed by a subject. The data is used with a model describing the flow dependence of exhaled NO to derive a value for exhaled NO corresponding to a fixed flow rate, especially to an exhaled NO level corresponding to a fixed flow rate of 50 ml/s. During the manoeuvre a variation in flow restriction (31) may be applied so as to vary the overall flow rate of exhalation. The method offers a simple and quick way to determine exhaled NO levels with good accuracy and is suitable for use with children.

    摘要翻译: 公开了一种确定呼出一氧化氮(NO)水平的方法和装置。 该方法包括测量呼气NO(34)的水平和由受试者执行的潮气呼吸机动的一次或多次呼气(30,32)中的相应呼气流量。 该数据与描述呼出NO的流动依赖性的模型一起使用,以导出对应于固定流速的呼出NO的值,特别是对应于固定流速为50ml / s的呼出NO水平。 在操纵期间,可以应用流量限制(31)的变化,以便改变呼气的总体流速。 该方法提供了一种简单快速的方法,以准确度高的方式确定呼出的NO水平,适合儿童使用。

    LOW COST APPARATUS FOR DETECTION OF NITROGEN-CONTAINING GAS COMPOUNDS
    10.
    发明申请
    LOW COST APPARATUS FOR DETECTION OF NITROGEN-CONTAINING GAS COMPOUNDS 审中-公开
    用于检测含氮气体化合物的低成本装置

    公开(公告)号:WO2006114766A2

    公开(公告)日:2006-11-02

    申请号:PCT/IB2006051288

    申请日:2006-04-25

    摘要: Nitrogen-containing compounds are detected by chemically converting (210) them to nitrogen dioxide, and detecting (10) the amount of nitrogen dioxide. A semiconductor laser or light emitting diode (132) provides a modulated light (131) in the blue- violet-green wavelength range and a narrow bandwidth photo-acoustic sensor (10) detects the standing waves produced by the absorption of the light by the nitrogen dioxide. The photo-acoustic sensor (10) uses a resonant cavity (161, 182a-b) with a resonant frequency that corresponds to the modulation frequency of the light (131). For detecting nitric oxide, a surface chemical oxidation unit (210) is preferably used to convert the nitric oxide to nitrogen dioxide, using, for example potassium permanganate (KMnO4) filter, or a platinum (Pt) catalyst unit (260).

    摘要翻译: 通过化学转化(210)二氧化氮并检测(10)二氧化氮的量来检测含氮化合物。 半导体激光器或发光二极管(132)提供蓝紫色 - 绿色波长范围内的调制光(131),而窄带宽的光声传感器(10)检测通过吸收光产生的驻波 二氧化氮。 光声传感器(10)使用具有与光(131)的调制频率对应的谐振频率的谐振腔(161,182a-b)。 为了检测一氧化氮,使用例如高锰酸钾(KMnO4)过滤器或铂(Pt)催化剂单元(260),优选使用表面化学氧化单元(210)将一氧化氮转化为二氧化氮。