Analytical method and investigation system
    3.
    发明授权
    Analytical method and investigation system 有权
    分析方法和调查制度

    公开(公告)号:US08734347B2

    公开(公告)日:2014-05-27

    申请号:US12130091

    申请日:2008-05-30

    IPC分类号: A61B5/145 G06G7/60

    摘要: Metabolism diseases are evaluated by using a sensor to measure concentration of a medically significant analyte in a human or animal body fluid. The measurement data are correlated with the concentration of a medically significant analyte in body fluid over a time period of at least eight hours. An analytical facility analyzes time intervals within the time period to determine a stability parameter that characterizes the analyte concentration dynamics of change. The analytical facility further analyzes the stability parameters to determine disease-related particularities of metabolism.

    摘要翻译: 通过使用传感器来测量人体或动物体液中医学上重要的分析物的浓度来评估代谢疾病。 在至少8小时的时间内,测量数据与体液中医学上重要的分析物的浓度相关。 分析设备分析时间段内的时间间隔,以确定表征变化的分析物浓度动力学的稳定性参数。 分析设备进一步分析稳定性参数,以确定与疾病相关的新陈代谢特征。

    Method for investigating a scattering medium with intensity-modulated
light
    5.
    发明授权
    Method for investigating a scattering medium with intensity-modulated light 失效
    用强度调制光调查散射介质的方法

    公开(公告)号:US5713352A

    公开(公告)日:1998-02-03

    申请号:US572641

    申请日:1995-12-14

    CPC分类号: G01N21/49

    摘要: The invention concerns a method for investigating a scattering medium, especially a biological matrix, with intensity-modulated light. In order, in such a frequency-domain measuring procedure, to reduce the expenditure on electronics without restricting accuracy of measurement, a method is proposed, in which, in order to investigate a scattering medium, especially a biological matrix, with intensity-modulated light, a high-frequency modulation signal is generated by a frequency generator (18), the intensity of a light emitter (10) is modulated with a modulation signal and the light from the light emitter (10) is radiated into the medium, the modulation signal includes frequency chirps during which the modulation frequency is tuned from an initial frequency to a final frequency, the modulation signal is delivered from the frequency generator (18) via at least two different signal paths (23A, 24) to a signal mixer (31), so that during a frequency chirp the input signals of the signal mixer (31) differ by a differential frequency whose magnitude is a function of the difference between the signal transit times over the at least two signal paths (23A, 24) and of the rate of change of the modulation frequency, wherein at least one of the signal paths includes a light path section (20A) passing through the medium as a measurement signal path (23A), and the output signal of the signal mixer (31) is further processed to produce information relating to the scattering medium (FIG. 2).

    摘要翻译: 本发明涉及用强度调制光来研究散射介质,特别是生物基质的方法。 为了在这样的频域测量过程中,为了减少电子设备的开销而不限制测量精度,提出了一种方法,其中为了研究具有强度调制光的散射介质,特别是生物矩阵 ,由频率发生器(18)产生高频调制信号,用调制信号调制发光体(10)的强度,将来自发光体(10)的光照射到介质中,调制 信号包括调制频率从初始频率调谐到最终频率的频率啁啾,调制信号经由至少两个不同的信号路径(23A,24)从频率发生器(18)传送到信号混合器(31 ),使得在频率啁啾期间,信号混合器(31)的输入信号相差一个差分频率,其幅度是在at信号传输时间之间的差值的函数 至少两个信号路径(23A,24)和调制频率的变化率,其中信号路径中的至少一个包括通过介质作为测量信号路径(23A)的光路部分(20A),以及 信号混合器(31)的输出信号被进一步处理以产生与散射介质有关的信息(图3)。 2)。

    Electrochemical sensor and method for continuous analyte monitoring
    6.
    发明授权
    Electrochemical sensor and method for continuous analyte monitoring 失效
    电化学传感器和连续分析物监测方法

    公开(公告)号:US07731835B2

    公开(公告)日:2010-06-08

    申请号:US11038970

    申请日:2005-01-19

    IPC分类号: G01N27/327

    摘要: 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.

    摘要翻译: 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。

    Subcutaneous analyte sensor
    7.
    发明授权

    公开(公告)号:US07499738B2

    公开(公告)日:2009-03-03

    申请号:US11115889

    申请日:2005-04-27

    IPC分类号: A61B5/05 G01B9/02

    CPC分类号: A61B5/1459 A61B5/14532

    摘要: Assembly and method for measuring the concentration of an analyte in a biological matrix. The assembly includes an implantable optical-sensing element that comprises a body, and a membrane mounted on the body in a manner such that the membrane and the body define a cavity. The membrane is permeable to the analyte, but is impermeable to background species in the biological matrix. A refractive element is positioned in the cavity. A light source transmits light of a first intensity onto the refractive element, and a light detector receives light of a second intensity that is reflected from the cavity. A controller device optically coupled to the detector compares the first and second light intensities, and relates the intensities to analyte concentration.

    Analytical Method and Investigation System
    8.
    发明申请
    Analytical Method and Investigation System 有权
    分析方法和调查系统

    公开(公告)号:US20080262333A1

    公开(公告)日:2008-10-23

    申请号:US12130091

    申请日:2008-05-30

    IPC分类号: A61B5/145

    摘要: Metabolism diseases are evaluated by using a sensor to measure concentration of a medically significant analyte in a human or animal body fluid. The measurement data are correlated with the concentration of a medically significant analyte in body fluid over a time period of at least eight hours. An analytical facility analyzes time intervals within the time period to determine a stability parameter that characterizes the analyte concentration dynamics of change. The analytical facility further analyzes the stability parameters to determine disease-related particularities of metabolism.

    摘要翻译: 通过使用传感器来测量人体或动物体液中医学上重要的分析物的浓度来评估代谢疾病。 在至少8小时的时间内,测量数据与体液中医学上重要的分析物的浓度相关。 分析设备分析时间段内的时间间隔,以确定表征变化的分析物浓度动力学的稳定性参数。 分析设备进一步分析稳定性参数,以确定与疾病相关的新陈代谢特征。

    Small volume biosensor for continuous analyte monitoring
    10.
    发明授权
    Small volume biosensor for continuous analyte monitoring 失效
    用于连续分析物监测的小体积生物传感器

    公开(公告)号:US07045054B1

    公开(公告)日:2006-05-16

    申请号:US10069308

    申请日:2000-09-19

    IPC分类号: G01N27/327

    摘要: Sensors (10, 110, 210, 310, 410) and a method for detecting an analyte are described. Sensors (10, 110, 210, 310, 410) each have a volume of a hydrophilic medium (24) that retains an amount of analyte proportionate to the concentration of analyte in a biological fluid, electrodes (12) and a redox enzyme in contact with medium (24), and an electron transfer mediator. The fluid contacts sensors (10, 110, 210, 310, 410) and at initially predetermined intervals intermittently applies a potential to electrode (12) sufficient to oxidize the mediator and sensing current through electrode (12) 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 (12). The current flow is correlated with the current flow for known concentrations of the analyte in medium (24).

    摘要翻译: 描述了传感器(10,110,210,310,410)和检测分析物的方法。 传感器(10,110,210,310,410)各自具有体积的亲水介质(24),其保留与生物流体中的分析物浓度成比例的分析物的量,电极(12)和接触中的氧化还原酶 与介质(24)和电子转移介体。 流体接触传感器(10,110,210,310,410)并且以最初预定间隔间歇地向电极(12)施加足以氧化介体并且感测通过电极(12)的电流的电位,作为所述电极 应用潜力。 所施加的介体氧化施加电位被保持足以确定电流随时​​间的变化的速率通过电极(12)的时间。 当前流量与介质(24)中已知浓度的分析物的当前流量相关。