TRANSCUTANEOUS ANALYTE SENSOR
    11.
    发明申请

    公开(公告)号:US20200245917A1

    公开(公告)日:2020-08-06

    申请号:US16857107

    申请日:2020-04-23

    Applicant: DexCom, Inc.

    Abstract: A transcutaneous sensor device configured for continuously measuring analyte concentrations in a host is provided. In some embodiments, the transcutaneous sensor device 100 comprises an in vivo portion 160 configured for insertion under the skin 180 of the host and an ex vivo portion 170 configured to remain above the surface of the skin 180 of the host after sensor insertion of the in vivo portion. The in vivo portion may comprise a tissue piercing element 110 configured for piercing the skin 180 of the host and a sensor body 120 comprising a material or support member 130 that provides sufficient column strength to allow the sensor body to be pushable in a host tissue without substantial buckling. The ex vivo portion 170 may be configured to comprise (or operably connect to) a sensor electronics unit and may comprise a mounting unit 150. Also described here are various configurations of the sensor body and the tissue piercing element that may be used to protect the membrane of the sensor body.

    ADVANCED ANALYTE SENSOR CALIBRATION AND ERROR DETECTION
    16.
    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.

    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。

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