Conductive sensors and their use in diagnostic assays
    1.
    发明授权
    Conductive sensors and their use in diagnostic assays 失效
    导电传感器及其在诊断测定中的应用

    公开(公告)号:US5202261A

    公开(公告)日:1993-04-13

    申请号:US793180

    申请日:1991-11-18

    IPC分类号: C12Q1/00

    摘要: A conductive sensor and its use in a diagnostic assay are disclosed. The miniaturized conductive sensor, utilizing a conducting polymer, is used in a diagnostic device to determine the presence or concentration of a predetermined analyte in a liquid test sample, wherein the predetermined analyte, like glucose, is assayed by an oxidase interaction. The interaction between the oxidase and a small amount of the predetermined analyte in the test sample generates, either directly or indirectly, a dopant compound in a reaction zone of the conductive sensor. The dopant compound then migrates to the detection zone of the conductive sensor of the diagnostic device to oxidize the conducting polymer and convert the conducting polymer from an insulating form to a conducting form. The resulting increase in conductivity of the conducting polymer is measured, then the conductivity increase is correlated to the concentration of the predetermined analyte in the test sample.

    摘要翻译: 公开了一种导电传感器及其在诊断测定中的应用。 使用导电聚合物的小型化导电传感器用于诊断装置中以确定液体测试样品中预定分析物的存在或浓度,其中通过氧化酶相互作用测定预定分析物,如葡萄糖。 测试样品中氧化酶与少量预定分析物之间的相互作用直接或间接地产生导电传感器反应区中的掺杂剂化合物。 然后,掺杂剂化合物迁移到诊断装置的导电传感器的检测区域,以氧化导电聚合物并将导电聚合物从绝缘形式转换为导电形式。 测量导电聚合物导电率的增加,然后电导率增加与测试样品中预定分析物的浓度相关。

    Use of conductive sensors in diagnostic assays
    2.
    发明授权
    Use of conductive sensors in diagnostic assays 失效
    在诊断测定中使用导电传感器

    公开(公告)号:US5250439A

    公开(公告)日:1993-10-05

    申请号:US990340

    申请日:1992-12-14

    摘要: A conductive sensor and its use in a diagnostic assay are disclosed. The miniaturized conductive sensor, utilizing a conducting polymer, is used in a diagnostic device to determine the presence or concentration of a predetermined analyte in a liquid test sample, wherein the predetermined analyte, like glucose, is assayed by an oxidase interaction. The interaction between the oxidase and a small amount of the predetermined analyte in the test sample generates, either directly or indirectly, a dopant compound in a reaction zone of the conductive sensor. The dopant compound then migrates to the detection zone of the conductive sensor of the diagnostic device to oxidize the conducting polymer and convert the conducting polymer from an insulating form to a conducting form. The resulting increase in conductivity of the conducting polymer is measured, then the conductivity increase is correlated to the concentration of the predetermined analyte in the test sample.

    摘要翻译: 公开了一种导电传感器及其在诊断测定中的应用。 使用导电聚合物的小型化导电传感器用于诊断装置中以确定液体测试样品中预定分析物的存在或浓度,其中通过氧化酶相互作用测定预定分析物(如葡萄糖)。 测试样品中氧化酶与少量预定分析物之间的相互作用直接或间接地产生导电传感器反应区中的掺杂剂化合物。 然后,掺杂剂化合物迁移到诊断装置的导电传感器的检测区域,以氧化导电聚合物并将导电聚合物从绝缘形式转换为导电形式。 测量导电聚合物导电率的增加,然后电导率增加与测试样品中预定分析物的浓度相关。

    Electrochemical-sensor design
    3.
    发明授权

    公开(公告)号:US07125481B2

    公开(公告)日:2006-10-24

    申请号:US10864011

    申请日:2004-06-09

    IPC分类号: G01N27/327 G01N27/333

    CPC分类号: C12Q1/001 G01N27/3274

    摘要: An electrochemical test sensor adapted to assist in determining the concentration of analyte in a fluid sample is disclosed. The sensor comprises a base that assists in forming an opening for introducing the fluid sample, a working electrode being coupled to the base, and a counter electrode being coupled to the base, the counter electrode and the working electrode being adapted to be in electrical communication with a detector of electrical current, and a sub-element being coupled to the base. A major portion of the counter electrode is located downstream relative to the opening and at least a portion of the working electrode. The sub-element is located upstream relative to the working electrode such that when electrical communication occurs between only the sub-element and the working electrode there is insufficient flow of electrical current through the detector to determine the concentration of the analyte in the fluid sample.

    Electrochemical-sensor design
    4.
    再颁专利

    公开(公告)号:USRE44521E1

    公开(公告)日:2013-10-08

    申请号:US12257031

    申请日:2008-10-23

    IPC分类号: G01N27/327

    CPC分类号: C12Q1/001 G01N27/3274

    摘要: An electrochemical test sensor adapted to assist in determining the concentration of analyte in a fluid sample is disclosed. The sensor comprises a base that assists in forming an opening for introducing the fluid sample, a working electrode being coupled to the base, and a counter electrode being coupled to the base, the counter electrode and the working electrode being adapted to be in electrical communication with a detector of electrical current, and a sub-element being coupled to the base. A major portion of the counter electrode is located downstream relative to the opening and at least a portion of the working electrode. The sub-element is located upstream relative to the working electrode such that when electrical communication occurs between only the sub-element and the working electrode there is insufficient flow of electrical current through the detector to determine the concentration of the analyte in the fluid sample.

    Electrochemical-sensor design
    5.
    发明授权
    Electrochemical-sensor design 有权
    电化学传感器设计

    公开(公告)号:US06841052B2

    公开(公告)日:2005-01-11

    申请号:US09861437

    申请日:2001-05-21

    CPC分类号: C12Q1/001 G01N27/3274

    摘要: An improved electrochemical sensor having a base bearing a working and counter electrode which provides a flow path for a fluid test sample. The working and counter electrodes are configured so that a major portion of the counter electrode is located downstream on the flow path from the working electrode with the exception of a small sub-element of the counter electrode which is in electrical communication with the primary portion of the counter electrode and located upstream of the working electrode. This configuration enables the sensor when the capillary space is incompletely filled with test fluid.

    摘要翻译: 一种改进的电化学传感器,其具有承载工作和对电极的基座,其提供用于流体测试样品的流动路径。 工作电极和对电极被构造成使得相对电极的主要部分位于与工作电极相距的流动路径的下游,除了对电极的小子元件之外,该小子元件与主电极 对置电极并位于工作电极的上游。 当毛细管空间未完全填充测试流体时,该配置使得传感器成为可能。

    Electrochemical-sensor design
    6.
    发明授权
    Electrochemical-sensor design 有权
    电化学传感器设计

    公开(公告)号:US06531040B2

    公开(公告)日:2003-03-11

    申请号:US09731943

    申请日:2000-12-08

    IPC分类号: G01N2726

    CPC分类号: C12Q1/001 G01N27/3274

    摘要: Disclosed is an electrochemical sensor for detecting the concentration of an analyte such as glucose in a fluid test sample. The sensor involves a base as flow path for the fluid test sample having a working and counter electrode on its surface. The base is mated with a cover to form a capillary space to capture the fluid and the counter electrode has a sub-element located upstream in the flow path. When there is detected electrical communication only between the sub-element and the working electrode the meter, with which the sensor is in electrical communication senses that the capillary space has not completely filled with test fluid.

    摘要翻译: 公开了一种用于检测流体测试样品中诸如葡萄糖的分析物浓度的电化学传感器。 该传感器涉及一个流动测试样品的流动路径,其底部具有在其表面上的工作和反电极。 基座与盖子配合以形成毛细管空间以捕获流体,并且对电极具有位于流动路径上游的子元件。 当仅在子元件和工作电极之间检测到电气通信时,与传感器电连通的仪表可以检测到毛细管空间未完全充满测试流体。

    Electrochemical sensor with controlled variation of working electrode
    8.
    发明授权
    Electrochemical sensor with controlled variation of working electrode 有权
    电化学传感器,工作电极受控变化

    公开(公告)号:US08529742B2

    公开(公告)日:2013-09-10

    申请号:US12711806

    申请日:2010-02-24

    IPC分类号: G01N27/327

    CPC分类号: G01N27/3272

    摘要: An electrochemical sensor includes a dielectric substrate and a conductive layer formed on a surface of the substrate. The conductive layer includes a working electrode, an electrode lead and a connecting arm connecting the working electrode to the electrode lead. A dielectric layer is positioned over the conductive layer. The dielectric layer has an aperture exposing the working electrode and a portion of the connecting arm. The working electrode, electrode lead and connecting arm may be formed by laser ablation technique to provide precise working electrode sensor parameters.

    摘要翻译: 电化学传感器包括介电基片和形成在基片表面上的导电层。 导电层包括工作电极,电极引线和将工作电极连接到电极引线的连接臂。 电介质层位于导电层上。 电介质层具有暴露工作电极和连接臂的一部分的孔。 工作电极,电极引线和连接臂可以通过激光烧蚀技术形成,以提供精确的工作电极传感器参数。

    ELECTROCHEMICAL SENSOR WITH CONTROLLED VARIATION OF WORKING ELECTRODE
    9.
    发明申请
    ELECTROCHEMICAL SENSOR WITH CONTROLLED VARIATION OF WORKING ELECTRODE 有权
    电化学传感器与工作电极的控制变化

    公开(公告)号:US20110203926A1

    公开(公告)日:2011-08-25

    申请号:US12711806

    申请日:2010-02-24

    IPC分类号: G01N27/26

    CPC分类号: G01N27/3272

    摘要: An electrochemical sensor includes a dielectric substrate and a conductive layer formed on a surface of the substrate. The conductive layer includes a working electrode, an electrode lead and a connecting arm connecting the working electrode to the electrode lead. A dielectric layer is positioned over the conductive layer. The dielectric layer has an aperture exposing the working electrode and a portion of the connecting arm. The working electrode, electrode lead and connecting arm may be formed by laser ablation technique to provide precise working electrode sensor parameters.

    摘要翻译: 电化学传感器包括介电基片和形成在基片表面上的导电层。 导电层包括工作电极,电极引线和将工作电极连接到电极引线的连接臂。 电介质层位于导电层上。 电介质层具有暴露工作电极和连接臂的一部分的孔。 工作电极,电极引线和连接臂可以通过激光烧蚀技术形成,以提供精确的工作电极传感器参数。

    Test Patch System and Method
    10.
    发明申请
    Test Patch System and Method 有权
    测试补丁系统和方法

    公开(公告)号:US20090015273A1

    公开(公告)日:2009-01-15

    申请号:US12172329

    申请日:2008-07-14

    IPC分类号: G01N27/06 G01N1/14

    CPC分类号: G01N27/07 G01N2001/028

    摘要: A test system for taking a sample of a constituent on a surface utilizing a fluid source includes a transition region having a capillary layer for delivering a fluid from said fluid source, an extraction region having a collection material in contact with said surface, and a collection region having a sensor reservoir therein for collecting the fluid for analysis.

    摘要翻译: 用于利用流体源在表面上取得表面上的成分样品的测试系统包括具有用于从所述流体源输送流体的毛细管层的过渡区域,具有与所述表面接触的收集材料的提取区域和收集 区域,其中具有用于收集用于分析的流体的传感器储存器。