知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

28 条记录 (耗时 0.019 秒)

    REAL-TIME SELF-CALIBRATING SENSOR SYSTEM AND METHOD
    3.
    发明申请
    REAL-TIME SELF-CALIBRATING SENSOR SYSTEM AND METHOD 有权
    实时自校准传感器系统及方法

    公开(公告)号：US20120123690A1

    公开(公告)日：2012-05-17

    申请号：US13340562

    申请日：2011-12-29

    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： G06F19/00 ,  G01N27/403

    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。

    Systems and Methods for Calibrating Physiological Characteristic Sensors
    4.
    发明申请
    Systems and Methods for Calibrating Physiological Characteristic Sensors 有权
    校准生理特征传感器的系统和方法

    公开(公告)号：US20100268477A1

    公开(公告)日：2010-10-21

    申请号：US12827851

    申请日：2010-06-30

    申请人： John C. Mueller, JR. ,  Desmond Barry Keenan ,  Lu Wang ,  John J. Mastrototaro

    发明人： John C. Mueller, JR. ,  Desmond Barry Keenan ,  Lu Wang ,  John J. Mastrototaro

    IPC分类号： G12B13/00 ,  G06F19/00 ,  G01N33/66

    CPC分类号： A61B5/14532 ,  A61B5/14865 ,  A61B2560/0223

    摘要： A method of calibrating glucose monitor data includes collecting the glucose monitor data over a period of time at predetermined intervals, obtaining reference glucose values from a reference source that temporally correspond with the glucose monitor data obtained at the predetermined intervals, calculating the calibration characteristics using the reference glucose values and corresponding glucose monitor data to regress the obtained glucose monitor data, and calibrating the obtained glucose monitor data using the calibration characteristics. In additional embodiments, calculation of the calibration characteristics includes linear regression and, in particular embodiments, least squares linear regression. Alternatively, calculation of the calibration characteristics includes non-linear regression. Data integrity may be verified and the data may be filtered. Further, calibration techniques may be modified during a fast rate of change in the patient's blood glucose level to increase sensor accuracy.

    摘要翻译： 一种校准葡萄糖监测数据的方法包括以预定间隔在一段时间内收集葡萄糖监测数据，从参考源获取参考葡萄糖值，该参考源在时间上与以预定间隔获得的葡萄糖监测数据相对应，使用 参考葡萄糖值和相应的葡萄糖监测数据，以回收所获得的葡萄糖监测数据，并使用校准特征校准获得的葡萄糖监测数据。 在另外的实施例中，校准特性的计算包括线性回归，并且在特定实施例中包括最小二乘线性回归。 或者，校准特性的计算包括非线性回归。 可以验证数据完整性，并且可以对数据进行过滤。 此外，可以在患者血糖水平的快速变化率期间修改校准技术以提高传感器精度。

    Real-time self-calibrating sensor system and method
    7.
    发明申请
    Real-time self-calibrating sensor system and method 有权
    实时自校准传感器系统及方法

    公开(公告)号：US20070163894A1

    公开(公告)日：2007-07-19

    申请号：US11323216

    申请日：2005-12-30

    申请人： Lu Wang ,  Rajiv Shah ,  Wayne Morgan ,  Barry Keenan

    发明人： Lu Wang ,  Rajiv Shah ,  Wayne Morgan ,  Barry Keenan

    IPC分类号： G01F1/64 ,  A61B5/05 ,  G01N17/00 ,  G01N31/00 ,  C12N9/00 ,  C25B11/00

    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。

    Method and system for limiting interference in electroencephalographic signals
    8.
    发明申请
    Method and system for limiting interference in electroencephalographic signals 有权
    限制脑电信号干扰的方法和系统

    公开(公告)号：US20070038382A1

    公开(公告)日：2007-02-15

    申请号：US11200674

    申请日：2005-08-09

    申请人： Barry Keenan

    发明人： Barry Keenan

    IPC分类号： G06F19/00 ,  A61B5/04

    CPC分类号： A61B5/7203 ,  A61B5/117 ,  A61B5/7257 ,  A61B5/726 ,  G06K9/0051

    摘要： This invention provides methods and systems for removing or limiting interference and artifacts often found in EEG signals and/or EOG signals and/or other physiological signals, and produces output signals that can be of greater use for analytic or diagnostic purposes, such as sleep studies. Interference and artifacts are removed by applying a plurality of filtering methods targeted to the particular time-frequency characteristics of the anticipated interference.

    摘要翻译： 本发明提供了用于去除或限制经常在EEG信号和/或EOG信号和/或其他生理信号中发现的干扰和伪影的方法和系统，并且产生可用于分析或诊断目的更多使用的输出信号，例如睡眠研究 。 通过应用针对预期干扰的特定时间 - 频率特性的多个滤波方法来去除干扰和伪影。

    Systems and methods for monitoring subjects in potential physiological distress
    9.
    发明授权
    Systems and methods for monitoring subjects in potential physiological distress 有权
    用于监测潜在生理困扰的受试者的系统和方法

    公开(公告)号：US09492084B2

    公开(公告)日：2016-11-15

    申请号：US11503350

    申请日：2006-08-10

    申请人： Andrew Behar ,  Jeff Cobb ,  Alex Derchak ,  Barry Keenan ,  Dave Darnall

    发明人： Andrew Behar ,  Jeff Cobb ,  Alex Derchak ,  Barry Keenan ,  Dave Darnall

    IPC分类号： A61B5/00 ,  G06F19/00

    CPC分类号： A61B5/0002 ,  A61B5/4866 ,  A61B5/4884 ,  A61B5/6804 ,  A61B5/7264 ,  A61B2560/0431 ,  G06F19/3418 ,  G16H80/00

    摘要： The present invention provides systems and methods for monitoring in real time the physiological status of one or more subjects, especially subject engaged in potentially hazardous or dangerous activities. Systems include wearable items with one or more physiological sensors and a local data unit (LDU) operatively coupled to the sensors. The LDUs digitize and filter sensor data, extract physiological parameters, determine abnormal or not acceptable physiological conditions, and communicate to external monitoring facilities. The external facilities display status and data concerning monitored subjects. In preferred embodiments, communication between the LDUs and the external monitoring facilities dynamically adjusts to the condition of the subjects and to system changes such as subjects and external facilities entering and leaving and/or moving from place to place. The invention also provides program products for performing this invention's methods.

    摘要翻译： 本发明提供用于实时监测一个或多个受试者，特别是从事潜在危险或危险活动的受试者的生理状况的系统和方法。 系统包括具有一个或多个生理传感器的可穿戴物品和可操作地耦合到传感器的本地数据单元（LDU）。 LDU数字化和过滤传感器数据，提取生理参数，确定异常或不可接受的生理条件，并与外部监测设施进行通信。 外部设施显示有关受监控对象的状态和数据。 在优选实施例中，LDU和外部监视设备之间的通信根据被摄体的状态以及诸如被摄体和外部设备进入和离开和/或从一个地方移动到另一个地方的系统变化动态地调整。 本发明还提供了用于执行本发明方法的程序产品。