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    Method for testing breath alcohol with discrimination between alveolar and upper respiratory tract alcohol
    41.
    发明授权
    Method for testing breath alcohol with discrimination between alveolar and upper respiratory tract alcohol 失效
    用于检测呼吸酒精的方法，区分肺泡和上呼吸道酒精

    公开(公告)号：US5376555A

    公开(公告)日：1994-12-27

    申请号：US202282

    申请日：1994-02-25

    Applicant: Glenn C. Forrester ,  Roger Allen ,  Roger Herrera ,  Daniel S. Goldberger ,  James R. Braig

    Inventor： Glenn C. Forrester ,  Roger Allen ,  Roger Herrera ,  Daniel S. Goldberger ,  James R. Braig

    IPC: G01N33/497 ,  G01N21/61

    CPC classification number: A61B5/097 ,  G01N33/4972 ,  Y10S436/90 ,  Y10T436/204165 ,  Y10T436/204998

    Abstract: A method and infrared sensing device for determining the concentration of alveolar alcohol in a breath sample exhaled by a subject into an infrared sensing device. The presence of alcohol from the upper respiratory tract of the subject is detected by continuously monitoring alcohol and carbon dioxide, normalizing alcohol values with respect to carbon dioxide, calculating a difference between normalized alcohol concentration and carbon dioxide concentration over time, integrating (summing) the difference, and comparing the integrated difference with a threshold. This technique accurately and consistently detects the presence of mouth alcohol in the sample before the presence of carbon dioxide which originates in deep lung breath.

    Abstract translation: 一种用于确定受试者呼出的呼吸样品中的肺泡醇浓度成红外感测装置的方法和红外感测装置。 通过连续监测酒精和二氧化碳，对二氧化碳标准化酒精度值，计算标准化酒精浓度与二氧化碳浓度之间的差异随时间的推移，检测来自受试者上呼吸道的酒精含量（总和） 差异，并将积分差异与阈值进行比较。 该技术在二氧化碳的存在之前准确且一致地检测出样品中口腔醇的存在，这种二氧化碳起源于深肺呼吸。

    Shutterless mainstream discriminating anesthetic agent analyzer
    42.
    发明授权
    Shutterless mainstream discriminating anesthetic agent analyzer 失效
    快门主流鉴别麻醉剂分析仪

    公开(公告)号：US5296706A

    公开(公告)日：1994-03-22

    申请号：US985793

    申请日：1992-12-02

    Applicant: James R. Braig ,  Daniel S. Goldberger ,  Mark L. Yelderman ,  Roger O. Herrera

    Inventor： James R. Braig ,  Daniel S. Goldberger ,  Mark L. Yelderman ,  Roger O. Herrera

    IPC: G01J5/06 ,  G01J5/12 ,  G01N21/31 ,  G01N21/35 ,  G01J5/2

    CPC classification number: G01N21/3581 ,  G01N21/3504 ,  G01J2005/066 ,  G01J5/12 ,  G01N2021/3129 ,  G01N2021/3166

    Abstract: An anesthetic agent analyzer having six or more independent analytical channels, where each channel comprises a first thermopile which receives incident infrared radiation and a second thermopile behind the first thermopile which is blocked from the incident infrared radiation and thus serves as a reference for detecting ambient temperature variations. The first and second thermopiles are connected in a "parallel opposed" fashion so that the effects of ambient temperature variations automatically cancel and the detectors may be readily configured in a detector package. The anesthetic agent analyzer of the invention is designed for use with a wideband infrared radiation source so that anesthetic agents having characteristic absorption bands in the far infrared wavelength range (6-15 microns) may be more readily detected and discriminated. When implemented in a mainstream configuration, a disposable airway adapter with windows formed of polypropylene or some other suitable window material which minimally attenuates the infrared energy at the wavelengths of interest is also used. The concentrations of the discriminated anesthetic agent gases are then calculated using a second order polynomial equation having cross product terms. By connecting the first and second thermopiles in a back to back configuration, the detector device of the invention permits twice as many independent analytical channels to be provided in the same substrate area, with the resultant reduction in ambient temperature gradients.

    Abstract translation: 具有六个或更多个独立分析通道的麻醉剂分析器，其中每个通道包括接收入射的红外辐射的第一热电堆和第一热电堆后面的第二热电堆，其被阻挡入射的红外辐射，因此用作检测环境温度的参考 变化。 第一和第二热电堆以“平行相对”的方式连接，使得环境温度变化的影响自动消除，并且检测器可以容易地配置在检测器封装中。 本发明的麻醉剂分析仪被设计用于宽带红外辐射源，从而可以更容易地检测和鉴别具有远红外波长范围（6-15微米）特征吸收带的麻醉剂。 当以主流配置实施时，还使用具有由聚丙烯形成的窗口的一次性气道适配器或一些其它合适的窗口材料，其最小程度地衰减感兴趣的波长处的红外能量。 然后使用具有交叉乘积项的二阶多项式方程来计算鉴别的麻醉剂气体的浓度。 通过以背靠背的形式连接第一和第二热电堆，本发明的检测器装置允许在同一衬底区域中提供两倍的独立分析通道，从而降低环境温度梯度。

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