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    • 8. 发明申请
    • SAMPLE CHARACTERIZATION BASED ON AC MEASUREMENT METHODS
    • 基于交流测量方法的样本特征
    • US20110168575A1
    • 2011-07-14
    • US12684277
    • 2010-01-08
    • Georgeta LicaHarvey B. BuckHenning Groll
    • Georgeta LicaHarvey B. BuckHenning Groll
    • G01N27/26
    • G01N27/3274
    • One aspect concerns a technique for detecting analyte concentrations, such as glucose concentrations, in blood or other bodily fluids. This technique utilizes an electrochemical test strip that includes a mediator system that generates a linear faradic response at relatively low applied potential differences. An alternating current excitation signal is applied to blood in the test strip. The alternating current excitation signal includes a low frequency signal and a high frequency signal that has a higher frequency than the low frequency signal. The glucose concentration is determined by measuring a low frequency response to the low frequency signal, measuring a high frequency response to the high frequency signal, estimating the glucose concentration based on the low frequency response, and correcting the glucose concentration for one or more error-causing variables based on the high frequency response.
    • 一方面涉及用于检测血液或其他体液中的分析物浓度,例如葡萄糖浓度的技术。 该技术利用电化学测试条,其包括在相对低的施加电位差下产生线性法拉第响应的介体系统。 交流电激励信号被施加到测试条中的血液。 交流励磁信号包括低频信号和具有比低频信号更高频率的高频信号。 葡萄糖浓度通过测量对低频信号的低频响应,测量对高频信号的高频响应,基于低频响应估计葡萄糖浓度,以及校正一个或多个误差信号的葡萄糖浓度, 导致基于高频响应的变量。
    • 9. 发明授权
    • Electrochemical sensor and method for continuous analyte monitoring
    • 电化学传感器和连续分析物监测方法
    • US07731835B2
    • 2010-06-08
    • US11038970
    • 2005-01-19
    • Harvey B. BuckMatthias Essenpreis
    • Harvey B. BuckMatthias Essenpreis
    • G01N27/327
    • C12Q1/006A61B5/14532A61B5/1486C12Q1/001C12Q1/004
    • Sensors and a method for detecting an analyte are described. Sensors each have a volume of a hydrophilic medium that retains an amount of analyte proportionate to the concentration of analyte in a biological fluid, electrodes and a redox enzyme in contact with medium, and an electron transfer mediator. The fluid contacts sensors and at initially predetermined intervals intermittently applies a potential to electrode sufficient to oxidize the mediator and sensing current through electrode as a function of the duration of the applied potential. The applied mediator oxidizing applied potential is maintained for a period of time sufficient to determine the rate of change of current with time through electrode. The current flow is correlated with the current flow for known concentrations of the analyte in medium.
    • 描述了传感器和检测分析物的方法。 传感器各自具有一定量的亲水介质,其保留与生物流体,电极和与介质接触的氧化还原酶的分析物浓度成比例的分析物和电子转移介体。 液体接触传感器并且以最初预定间隔间歇地将电位施加到足以氧化介体并将感应通过电极的电流作为施加电位的持续时间的函数。 所施加的介体氧化施加电位保持足够长的时间以确定电流随时​​间的变化通过电极的速率。 目前的流量与已知浓度的分析物在介质中的电流相关。