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    ADVANCED ANALYTE SENSOR CALIBRATION AND ERROR DETECTION
    212.
    发明申请
    ADVANCED ANALYTE SENSOR CALIBRATION AND ERROR DETECTION 有权
    高级分析仪传感器校准和错误检测

    公开(公告)号：US20160018246A1

    公开(公告)日：2016-01-21

    申请号：US14860392

    申请日：2015-09-21

    Applicant: DexCom, Inc.

    Inventor： Sebastian Bohm ,  Daiting Rong ,  Peter C. Simpson

    IPC: G01D18/00 ,  G01N27/02 ,  G01N33/49 ,  A61B5/145

    CPC classification number: A61B5/1495 ,  A61B5/14503 ,  A61B5/1451 ,  A61B5/14517 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1473 ,  A61B5/1486 ,  A61B5/7257 ,  A61B5/7267 ,  A61B2560/0276 ,  G01D18/00 ,  G01N27/026 ,  G01N27/3274 ,  G01N33/49

    Abstract: Systems and methods for processing sensor data and self-calibration are provided. In some embodiments, systems and methods are provided which are capable of calibrating a continuous analyte sensor based on an initial sensitivity, and then continuously performing self-calibration without using, or with reduced use of, reference measurements. In certain embodiments, a sensitivity of the analyte sensor is determined by applying an estimative algorithm that is a function of certain parameters. Also described herein are systems and methods for determining a property of an analyte sensor using a stimulus signal. The sensor property can be used to compensate sensor data for sensitivity drift, or determine another property associated with the sensor, such as temperature, sensor membrane damage, moisture ingress in sensor electronics, and scaling factors.

    Abstract translation: 提供了用于处理传感器数据和自校准的系统和方法。 在一些实施例中，提供了能够基于初始灵敏度来校准连续分析物传感器，然后在不使用或减少使用参考测量的情况下连续执行自校准的系统和方法。 在某些实施例中，通过应用作为某些参数的函数的估计算法来确定分析物传感器的灵敏度。 本文还描述了使用刺激信号来确定分析物传感器的性质的系统和方法。 传感器属性可用于补偿传感器数据的灵敏度漂移，或确定与传感器相关的其他属性，如温度，传感器膜损坏，传感器电子设备中的水分进入以及缩放因子。

    OXYGEN ENHANCING MEMBRANE SYSTEMS FOR IMPLANTABLE DEVICES
    216.
    发明申请
    OXYGEN ENHANCING MEMBRANE SYSTEMS FOR IMPLANTABLE DEVICES 有权
    用于可植入设备的氧气增强膜系统

    公开(公告)号：US20150057514A1

    公开(公告)日：2015-02-26

    申请号：US14529034

    申请日：2014-10-30

    Applicant: DexCom, Inc.

    Inventor： James R. Petisce ,  Mark A. Tapsak ,  Peter C. Simpson ,  Victoria Carr-Brendel ,  James H. Brauker

    IPC: A61B5/1486 ,  A61B5/1473

    CPC classification number: A61B5/1473 ,  A61B5/145 ,  A61B5/14503 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1468 ,  A61B5/14735 ,  A61B5/14865

    Abstract: The present invention relates generally to systems and methods for increasing oxygen availability to implantable devices. The preferred embodiments provide a membrane system configured to provide protection of the device from the biological environment and/or a catalyst for enabling an enzymatic reaction, wherein the membrane system includes a polymer formed from a high oxygen soluble material. The high oxygen soluble polymer material is disposed adjacent to an oxygen-utilizing source on the implantable device so as to dynamically retain high oxygen availability to the oxygen-utilizing source during oxygen deficits. Membrane systems of the preferred embodiments are useful for implantable devices with oxygen-utilizing sources and/or that function in low oxygen environments, such as enzyme-based electrochemical sensors and cell transplantation devices.

    Abstract translation: 本发明一般涉及用于增加可植入装置的氧气可用性的系统和方法。 优选的实施方案提供了一种膜系统，其被配置为提供该装置与生物环境的保护和/或用于实现酶反应的催化剂，其中所述膜系统包括由高氧可溶性材料形成的聚合物。 高氧可溶性聚合物材料与可植入装置上的氧气源相邻设置，以便在缺氧期间动态地保持氧利用源的高氧可利用性。 优选实施方案的膜系统对于具有氧利用源的可植入装置和/或在低氧环境中起作用，例如基于酶的电化学传感器和细胞移植装置是有用的。

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