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    • 2. 发明申请
    • IMPROVED CARBON DIOXIDE NANOSENSOR, AND RESPIRATORY CO2 MONITORS
    • 改进的二氧化碳纳米传感器和呼吸二氧化碳监测器
    • WO2008039165A2
    • 2008-04-03
    • PCT/US2006/028079
    • 2006-07-18
    • NANOMIX, INC.CHANG, Daniel, M.CHANG, Ying-LanGABRIEL, Jean-christophe, P.JOSHI, VikramMICKELSON, WilliamNIEMANN, JosephPASSMORE, John, LorenSTAR, AlexanderVALCKE, Christian
    • CHANG, Daniel, M.CHANG, Ying-LanGABRIEL, Jean-christophe, P.JOSHI, VikramMICKELSON, WilliamNIEMANN, JosephPASSMORE, John, LorenSTAR, AlexanderVALCKE, Christian
    • G01N31/22
    • G01N33/004B82Y30/00G01N27/4146G01N33/497
    • An electronic system and method for detecting analytes, such as carbon dioxide, is provided, using an improved nanostructure sensor (CO2 sensor). The CO2 sensor may comprise a substrate and a nanostructure, such as a one or more carbon nanotubes disposed over the substrate (e.g., as a network). One or more conductive elements may electrically communicate with the nanostructure. A counter or gate electrode may be positioned adjacent the nanostructure. A functionalization material reactive with carbon dioxide may be included, either disposed in contact with the nanostructure or isolated by a dielectric. The sensor may be connected to a circuit responsive to changes in CO2 concentration in the environment. Embodiments are described of medical sensing systems including one or more CO2 sensors. One embodiment comprises a breath sampling cannula which is connected to a sensor unit. In an alternative, the cannula permits supplemental oxygen to be administered, while recovering and measuring analytes in breath samples. The cannula may connect to a portable processor-display unit for monitoring one or more analytes, such as CO2. Another embodiment includes a cannula configured for the monitoring of sleep disorders, such as apnea, comprising one or more sensors disposed adjacent a breath sampling channel, optionally including flow rate or other sensors. The sensors may be connected by wired or wireless links for to a processor/input/display unit. Any of the embodiments may include filters, selectively permeable membranes, absorbents, and the like to precondition the breath sample, may be configured to include complementary chemistry measurements.
    • 提供了一种用于检测分析物(如二氧化碳)的电子系统和方法,使用改进的纳米结构传感器(CO2传感器)。 CO 2传感器可以包括衬底和纳米结构,例如设置在衬底上的一个或多个碳纳米管(例如,作为网络)。 一个或多个导电元件可以与纳米结构电连通。 计数器或栅电极可以邻近纳米结构定位。 可以包括与二氧化碳反应的官能化材料,其与纳米结构接触或通过电介质隔离。 传感器可以响应于环境中二氧化碳浓度的变化而连接到电路。 描述了包括一个或多个CO 2传感器的医学感测系统的实施例。 一个实施例包括连接到传感器单元的呼吸取样套管。 在替代方案中,套管允许补充氧气,同时在呼吸样本中回收和测量分析物。 套管可以连接到便携式处理器显示单元,用于监测一个或多个分析物,例如CO 2。 另一个实施例包括配置用于监测睡眠障碍(例如呼吸暂停)的插管,其包括邻近呼吸采样通道设置的一个或多个传感器,可选地包括流速或其它传感器。 传感器可以通过有线或无线链路连接到处理器/输入/显示单元。 任何实施方案可以包括过滤器,选择性渗透膜,吸收剂等以预处理呼吸样品,可以被配置为包括互补的化学测量。