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公开(公告)号:US09759678B2
公开(公告)日:2017-09-12
申请号:US12887460
申请日:2010-09-21
申请人: Rajiv Shah , Wayne A. Morgan , David Y. Choy , James L. Henke , Bahar Reghabi , Gopikrishnan Soundararajan , Peter Schultz
发明人: Rajiv Shah , Wayne A. Morgan , David Y. Choy , James L. Henke , Bahar Reghabi , Gopikrishnan Soundararajan , Peter Schultz , Udo Hoss
IPC分类号: A61B5/00 , G01N27/403 , A61B5/145 , G01N27/327 , G01N27/416 , A61B5/1473 , C12Q1/00
CPC分类号: G01N27/403 , A61B5/14532 , A61B5/1473 , A61B2560/0223 , A61B2562/02 , C12Q1/006 , G01N27/327 , G01N27/416
摘要: A sensor system includes a sensor and a sensor electronics device. The sensor includes a plurality of electrodes. The sensor electronics device includes a connection detection device, a power source, and a delay circuit. The connection detection device determines if the sensor electronics device is connected to the sensor and transmits a connection signal. The delay circuit receives the connection signal, waits a preset hydration time, and couples the regulated voltage from the power source to an electrode in the sensor after the preset hydration time has elapsed. Alternatively, the sensor electronics device may include an electrical detection circuit and a microcontroller. The electrical detection circuit determines if the plurality of electrodes are hydrated and generates an interrupt if the electrodes are hydrated. A microcontroller receives the interrupt and transmits a signal representative of a voltage to an electrode of the plurality of electrodes.
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公开(公告)号:US09125608B2
公开(公告)日:2015-09-08
申请号:US13550508
申请日:2012-07-16
申请人: Lu Wang , Rajiv Shah , Wayne A. Morgan , Barry Keenan
发明人: Lu Wang , Rajiv Shah , Wayne A. Morgan , Barry Keenan
IPC分类号: A61B5/1495 , A61B5/1468 , A61B5/1486 , A61B5/1473 , A61B5/00 , A61B5/145 , A61M5/172
CPC分类号: A61B5/1495 , A61B5/0031 , A61B5/14532 , A61B5/1468 , A61B5/1473 , A61B5/14865 , A61B2560/0223 , A61M2005/1726
摘要: A system and method for calibrating a sensor of a characteristic monitoring system in real time utilizes a self-calibration module for periodic determination of, and compensation for, the IR drop across unwanted resistances in a cell. A current-interrupt switch is used to open the self-calibration module circuit and either measure the IR drop using a high-frequency (MHz) ADC module, or estimate it through linear regression of acquired samples of the voltage across the sensor's working and reference electrodes (Vmeasured) over time. The IR drop is then subtracted from the closed-circuit value of Vmeasured to calculate the overpotential that exists in the cell (Vimportant). Vimportant may be further optimized by subtracting the value of the open-circuit voltage (Voc) across the sensor's working and reference electrodes. The values of Vmeasured and Vimportant are then controlled by respective first and second control units to compensate for the IR drop.
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公开(公告)号:US20120310063A1
公开(公告)日:2012-12-06
申请号:US13550508
申请日:2012-07-16
申请人: Lu Wang , Rajiv Shah , Wayne A. Morgan , Barry Keenan
发明人: Lu Wang , Rajiv Shah , Wayne A. Morgan , Barry Keenan
IPC分类号: A61B5/1473
CPC分类号: A61B5/1495 , A61B5/0031 , A61B5/14532 , A61B5/1468 , A61B5/1473 , A61B5/14865 , A61B2560/0223 , A61M2005/1726
摘要: A system and method for calibrating a sensor of a characteristic monitoring system in real time utilizes a self-calibration module for periodic determination of, and compensation for, the IR drop across unwanted resistances in a cell. A current-interrupt switch is used to open the self-calibration module circuit and either measure the IR drop using a high-frequency (MHz) ADC module, or estimate it through linear regression of acquired samples of the voltage across the sensor's working and reference electrodes (Vmeasured) over time. The IR drop is then subtracted from the closed-circuit value of Vmeasured to calculate the overpotential that exists in the cell (Vimportant). Vimportant may be further optimized by subtracting the value of the open-circuit voltage (Voc) across the sensor's working and reference electrodes. The values of Vmeasured and Vimportant are then controlled by respective first and second control units to compensate for the IR drop.
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公开(公告)号:US20110130988A1
公开(公告)日:2011-06-02
申请号:US13004677
申请日:2011-01-11
申请人: RAJIV SHAH , Bahar Reghabi , James L. Henke , Wayne A. Morgan , Gopikrishnan Soundararajan , David Y. Choy , Peter Schultz , Udo Hoss
发明人: RAJIV SHAH , Bahar Reghabi , James L. Henke , Wayne A. Morgan , Gopikrishnan Soundararajan , David Y. Choy , Peter Schultz , Udo Hoss
摘要: A blood glucose sensing system includes a sensor and a sensor electronics device. The sensor includes a plurality of electrodes. The sensor electronics device includes stabilization circuitry. The stabilization circuitry causes a first voltage to be applied to one of the electrodes for a first timeframe and causes a second voltage to be applied to one of the electrodes for a second timeframe. The stabilization circuitry repeats the application of the first voltage and the second voltage to continue the anodic-cathodic cycle. The sensor electronics device may include a power supply, a regulator, and a voltage application device, where the voltage application device receives a regulated voltage from the regulator, applies a first voltage to an electrode for the first timeframe, and applies a second voltage to an electrode for the second timeframe.
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公开(公告)号:US20100324853A1
公开(公告)日:2010-12-23
申请号:US12826497
申请日:2010-06-29
申请人: Lu Wang , Rajiv Shah , Wayne A. Morgan , Barry Keenan
发明人: Lu Wang , Rajiv Shah , Wayne A. Morgan , Barry Keenan
IPC分类号: G01D18/00
CPC分类号: A61B5/1495 , A61B5/0031 , A61B5/14532 , A61B5/1468 , A61B5/1473 , A61B5/14865 , A61B2560/0223 , A61M2005/1726
摘要: A system and method for calibrating a sensor of a characteristic monitoring system in real time utilizes a self-calibration module for periodic determination of, and compensation for, the IR drop across unwanted resistances in a cell. A current-interrupt switch is used to open the self-calibration module circuit and either measure the IR drop using a high-frequency (MHz) ADC module, or estimate it through linear regression of acquired samples of the voltage across the sensor's working and reference electrodes (Vmeasured) over time. The IR drop is then subtracted from the closed-circuit value of Vmeasured to calculate the overpotential that exists in the cell (Vimportant). Vimportant may be further optimized by subtracting the value of the open-circuit voltage (Voc) across the sensor's working and reference electrodes. The values of Vmeasured and Vimportant are then controlled by respective first and second control units to compensate for the IR drop.
摘要翻译: 用于校准特征监测系统的传感器的系统和方法实时地利用自校准模块来周期性地确定和补偿细胞中不需要的电阻的IR降。 使用电流中断开关来打开自校准模块电路,并使用高频(MHz)ADC模块测量IR降压,或通过传感器工作和参考电压的采集样本的线性回归进行估计 电极(Vmeasured)随着时间的推移。 然后从Vmeasured的闭路电流值中减去IR降,以计算存在于电池(Vimportant)中的超电势。 可以通过减去传感器的工作参考电极和参考电极之间的开路电压(Voc)的值来进一步优化V重量。 然后由相应的第一和第二控制单元控制V测量和V重量的值以补偿IR下降。
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公开(公告)号:US20090085768A1
公开(公告)日:2009-04-02
申请号:US12056651
申请日:2008-03-27
IPC分类号: G08C19/06
CPC分类号: H04Q9/02 , A61B5/002 , A61B5/0022 , A61B5/14532 , A61B5/14865 , A61B5/6865 , G08C2201/40 , G08C2201/51 , G16H40/67 , H04Q2209/40 , H04Q2209/84 , H04Q2209/883
摘要: The present invention relates to a telemetered characteristic sensor transceiver for exchanging data with at least one remote device. The transceiver includes a housing detachably coupled to a sensor located on a body of a user, the sensor producing a signal indicative of a user characteristic. A processor is formed within the housing and in communication with the sensor for processing the signal produced by the sensor. A transmitter is coupled to the processor for transmitting data to at least one remote device while a receiver is coupled to the processor for receiving data from the at least one remote device. A memory is coupled to the processor for storing data, wherein the processor performs calculations using at least one of the signal produced by the sensor, the data received from the at least one remote device and the data stored in the memory, and performs at least one of storing the calculations in the memory and transmitting the calculations to the at least one remote device through the transmitter.
摘要翻译: 本发明涉及一种用于与至少一个远程设备交换数据的遥测特征传感器收发器。 收发器包括可拆卸地联接到位于用户身体上的传感器的壳体,该传感器产生指示用户特征的信号。 处理器形成在壳体内并与传感器通信,用于处理由传感器产生的信号。 发射器耦合到处理器,用于在至少一个远程设备的同时将数据传输到至少一个远程设备,而接收机耦合到处理器,用于从至少一个远程设备接收数据。 存储器耦合到处理器用于存储数据,其中处理器使用由传感器产生的信号,从至少一个远程设备接收的数据和存储在存储器中的数据中的至少一个来执行计算,并且执行至少 一种将计算存储在存储器中并通过发送器将计算发送到至少一个远程设备。
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公开(公告)号:US06809507B2
公开(公告)日:2004-10-26
申请号:US10034338
申请日:2001-12-28
申请人: Wayne A. Morgan , David Choy , John C. Gord , Rajiv Shah
发明人: Wayne A. Morgan , David Choy , John C. Gord , Rajiv Shah
IPC分类号: G01N2700
摘要: An electronic circuit for sensing an output of a sensor having at least one electrode pair and circuitry for obtaining and processing the sensor output. The electrode pair may be laid out such that one electrode is wrapped around the other electrode in a U-shaped fashion. The electronic circuitry may include, among other things, a line interface for interfacing with input/output lines, a rectifier in parallel with the line interface, a counter connected to the line interface and a data converter connected to the counter and the electrode pair. The data converter may be a current-to-frequency converter. In addition, the rectifier may derive power for the electronic circuit from communication pulses received on the input/output lines.
摘要翻译: 一种用于感测具有至少一个电极对的传感器的输出和用于获得和处理传感器输出的电路的电子电路。 可以布置电极对,使得一个电极以U形方式缠绕在另一个电极周围。 电子电路可以包括用于与输入/输出线接口的线路接口,与线路接口并联的整流器,连接到线路接口的计数器和连接到计数器和电极对的数据转换器。 数据转换器可以是电流 - 频率转换器。 此外,整流器可以从输入/输出线上接收的通信脉冲导出电子电路的功率。
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