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    • 3. 发明公开
    • METHODS AND SYSTEMS FOR IMPROVING THE RELIABILITY OF ORTHOGONALLY REDUNDANT SENSORS
    • 方法和系统增正交冗余传感器的可靠性
    • EP3082597A2
    • 2016-10-26
    • EP14816501.2
    • 2014-11-21
    • Medtronic MiniMed, Inc.
    • VARSAVSKY, AndreaLI, XiaolongLIU, Mike C.ZHONG, YuxiangYANG, Ning
    • A61B5/145
    • Methods and systems for sensor calibration and sensor glucose (SG) fusion are used advantageously to improve the accuracy and reliability of orthogonally redundant glucose sensor devices, which may include optical and electrochemical glucose sensors. Calibration for both sensors may be achieved via fixed-offset and/or dynamic regression methodologies, depending, e.g., on sensor stability and Isig-Ratio pair correlation. For SG fusion, respective integrity checks may be performed for SG values from the optical and electrochemical sensors, and the SG values calibrated if the integrity checks are passed. Integrity checks may include checking for sensitivity loss, noise, and drift. If the integrity checks are failed, in-line sensor mapping between the electrochemical and optical sensors may be performed prior to calibration. The electrochemical and optical SG values may be weighted (as a function of the respective sensor's overall reliability index (RI)) and the weighted SGs combined to obtain a single, fused SG value.
    • 的方法和系统用于传感器校准和葡萄糖传感器(SG)融合有利地用于改善正交冗余葡萄糖传感器装置,其可以包括光学和电化学葡萄糖传感器的准确度和可靠性。 校准这两个传感器可以经由固定偏移和/或动态回归方法,这取决于,E. G.,对传感器的稳定性和比的Isig对相关来实现。 对于SG融合,respectivement完整性检查可以执行用于SG值从光学和电化学传感器,以及如果完整性检查都通过的SG值来校准。 完整性检查可以包括检查损失灵敏度,噪声和漂移。 如果完整性检查失败,则电化学和光学传感器之间的在线传感器映射可以之前执行校准。 电化学和光学SG值可以被加权(作为respectivement传感器的整体可靠性指数(RI)的函数)和加权的SGs组合以获得一个单一的,稠合的SG值。