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    • 3. 发明授权
    • Methods of calibrating a sensor in a patient monitoring system
    • 在病人监护系统中校准传感器的方法
    • US08869585B2
    • 2014-10-28
    • US12918311
    • 2009-02-19
    • Gavin TroughtonPeter Laitenberger
    • Gavin TroughtonPeter Laitenberger
    • A61B5/1495
    • A61B5/1495A61B2560/0223
    • Methods and systems for calibrating a sensor for measuring an analyte in a patient monitoring system are disclosed. The method includes calculating sensor drift; calibrating the sensor using at least one calibration fluid; and periodically updating the sensor calibration based on the sensor drift calculation. The system adjusts a gas concentration in a fluid. The method in one of several variations includes providing a calibration fluid; setting the analyte concentration in the first fluid to a first concentration with an adjustment mechanism; measuring the first analyte concentration with the sensor; setting the analyte concentration in the first fluid to a second concentration; measuring the second analyte concentration with the sensor; and determining the calibration coefficients for the sensor from the measured first and second analyte concentrations. Some embodiments ensure that the period between recalibrations of the sensor is extended, thus reducing the number of disruptions to the sensor monitoring process.
    • 公开了用于校准用于测量患者监测系统中的分析物的传感器的方法和系统。 该方法包括计算传感器漂移; 使用至少一个校准流体校准传感器; 并基于传感器漂移计算周期性地更新传感器校准。 系统调节流体中的气体浓度。 在多种变化之一中的方法包括提供校准流体; 将第一流体中的分析物浓度用调节机构设定为第一浓度; 用传感器测量第一分析物浓度; 将第一流体中的分析物浓度设定为第二浓度; 用传感器测量第二分析物浓度; 以及根据所测量的第一和第二分析物浓度确定所述传感器的校准系数。 一些实施例确保传感器的重新校准之间的周期延长,从而减少传感器监测过程的中断次数。
    • 6. 发明申请
    • METHODS OF CALIBRATING A SENSOR IN A PATIENT MONITORING SYSTEM
    • 在患者监测系统中校准传感器的方法
    • US20110120206A1
    • 2011-05-26
    • US12918311
    • 2009-02-19
    • Gavin TroughtonPeter Laitenberger
    • Gavin TroughtonPeter Laitenberger
    • G01N33/00
    • A61B5/1495A61B2560/0223
    • The present application discloses a number of methods of calibrating a sensor for measuring an analyte in a patient monitoring system. In a first embodiment, the method comprises calculating a sensor drift; calibrating the sensor using at least one calibration fluid; and periodically updating the sensor calibration based on the sensor drift calculation. In a second embodiment, the system comprises means for adjusting a gas concentration in a fluid, and the method comprises providing a calibration fluid; setting the analyte concentration in the first fluid to a first concentration with said adjusting means; measuring the first analyte concentration with the sensor; setting the analyte concentration in the first fluid to a second concentration with said adjusting means; measuring the second analyte concentration with the sensor; and determining the calibration coefficients for the sensor from the measured first analyte concentration and the measured second analyte concentration. In a third embodiment, the method comprises exposing the sensor to a first fluid comprising a first unknown concentration of the analyte; measuring the first unknown analyte concentration with the sensor; determining the first unknown analyte concentration with an analyser external to the patient monitoring system; providing the sensor with the determined first analyte concentration, and determining the calibration coefficients for the sensor from the measured first unknown analyte concentration and the analyte concentration determined by the analyser. At least some of the above embodiments ensure that the period between recalibrations of the sensor is extended, thus reducing the number of disruptions to the sensor monitoring process.
    • 本申请公开了一些校准用于测量患者监测系统中的分析物的传感器的方法。 在第一实施例中,该方法包括计算传感器漂移; 使用至少一个校准流体校准传感器; 并基于传感器漂移计算周期性地更新传感器校准。 在第二实施例中,系统包括用于调节流体中的气体浓度的装置,并且该方法包括提供校准流体; 将所述第一流体中的分析物浓度用所述调节装置设定为第一浓度; 用传感器测量第一分析物浓度; 将所述第一流体中的分析物浓度用所述调节装置设定为第二浓度; 用传感器测量第二分析物浓度; 以及根据测量的第一分析物浓度和测量的第二分析物浓度确定传感器的校准系数。 在第三实施例中,该方法包括将传感器暴露于包含分析物的第一未知浓度的第一流体; 用传感器测量第一个未知分析物浓度; 使用患者监测系统外部的分析仪确定第一未知分析物浓度; 向传感器提供确定的第一分析物浓度,以及根据测量的第一未知分析物浓度和由分析仪确定的分析物浓度确定传感器的校准系数。 上述实施例中的至少一些确保传感器的重新校准之间的周期延长,从而减少传感器监测过程的中断次数。