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    Method of measuring absolute lung volume based on O2/CO2 gas analysis
    1.
    发明授权
    Method of measuring absolute lung volume based on O2/CO2 gas analysis 失效

    公开(公告)号：US07387609B2

    公开(公告)日：2008-06-17

    申请号：US11017852

    申请日：2004-12-22

    申请人： Eun Jong Cha ,  Shin Won Kang ,  Kyung Ah Kim

    发明人： Eun Jong Cha ,  Shin Won Kang ,  Kyung Ah Kim

    IPC分类号： A61B5/02

    CPC分类号： A61B5/083 ,  A61B5/0833 ,  A61B5/0836 ,  A61B5/091

    摘要： Disclosed herein is a method of measuring an absolute lung volume. In the method, concentrations of oxygen and carbon dioxide gases are measured and analyzed in respiratory gas, consisting of nitrogen (N2), oxygen (O2), and carbon dioxide (CO2), to indirectly measure a concentration of nitrogen, thereby achieving measurement of absolute lung volume, such as a functional residual capacity. The method comprises connecting a one-way valve to a subject so as to separate an inspiration path from an expiration path, measuring a flow rate of respiratory gas using a flow sensor, which is provided in the expiration path, continuously measuring a concentration (FO2) of oxygen and a concentration (FCO2) of carbon dioxide using O2 and CO2 sensors provided in the expiration path, correcting dynamic characteristics of the concentration (FO2) of oxygen and the concentration (FCO2) of carbon dioxide so that the dynamic characteristics agree with each other in terms of time, and analyzing oxygen and carbon dioxide gases using the following Equation FRC = 1 0.79 ⁢ ∫ ( 1 - ( F O2 - F CO2 ) ) ⁢ F ⁢ ⅆ t .

    Hydrogen ion sensing device using of arrayed gated lateral BJT
    2.
    发明授权
    Hydrogen ion sensing device using of arrayed gated lateral BJT 有权
    氢离子感测装置采用阵列门控侧向BJT

    公开(公告)号：US08283736B2

    公开(公告)日：2012-10-09

    申请号：US13031208

    申请日：2011-02-19

    申请人： Shin Won Kang ,  Hyurk Choon Kwon ,  Se Hyuk Yeom

    发明人： Shin Won Kang ,  Hyurk Choon Kwon ,  Se Hyuk Yeom

    IPC分类号： H01L29/73

    CPC分类号： G01N27/4148

    摘要： A hydrogen ion sensing device of the present invention includes: a reference electrode; a sensing portion which senses hydrogen ions by contacting an ion aqueous solution; and a plurality of ring-like lateral bipolar junction transistors, each including a lateral collector, an emitter, a vertical collector and a floating gate connected to the reference electrode, with the emitter surrounded by the floating gate and the lateral collector, wherein the plurality of ring-like lateral bipolar junction transistors are formed on a common substrate and are connected in parallel.

    摘要翻译： 本发明的氢离子检测装置包括：参考电极; 感测部，其通过使离子水溶液接触而感测氢离子; 以及多个环状横向双极结型晶体管，每个包括侧向集电极，发射极，垂直集电极和连接到参考电极的浮置栅极，发射极被浮置栅极和横向集电极包围，其中多个 的环状横向双极结型晶体管形成在公共基板上并且并联连接。