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    Low-power system clock calibration based on a high-accuracy reference clock
    3.
    发明授权
    Low-power system clock calibration based on a high-accuracy reference clock 有权
    基于高精度参考时钟的低功耗系统时钟校准

    公开(公告)号：US09079040B2

    公开(公告)日：2015-07-14

    申请号：US14473066

    申请日：2014-08-29

    Applicant: Medtronic, Inc.

    Inventor： Matthew C Bond ,  Charles R Gordon ,  Weizheng Liang ,  James D Reinke ,  Jonathan P Roberts

    IPC: A61N1/00 ,  A61N1/372 ,  A61N1/02 ,  A61N1/08 ,  G06F1/12 ,  G06F1/04

    CPC classification number: A61N1/37264 ,  A61N1/025 ,  A61N1/08 ,  A61N1/372 ,  A61N1/37276 ,  G06F1/04 ,  G06F1/12

    Abstract: Various techniques are described for periodically performing a calibration routine to calibrate a low-power system clock within an implantable medical device (IMD) based on a high accuracy reference clock also included in the IMD. The system clock is powered continuously, and the reference clock is only powered on during the calibration routine. The techniques include determining a clock error of the system clock based on a difference between frequencies of the system clock and the reference clock over a fixed number of clock cycles, and adjusting a trim value of the system clock to compensate for the clock error. Calibrating the system clock with a delta-sigma loop, for example, reduces the clock error over time. This allows accurate adjustment of the system clock to compensate for errors due to trim resolution, circuit noise and temperature.

    Abstract translation: 描述了各种技术，用于周期性地执行校准例程以基于也包括在IMD中的高精度参考时钟校准可植入医疗设备（IMD）内的低功率系统时钟。 系统时钟连续供电，参考时钟仅在校准程序中打开电源。 这些技术包括基于系统时钟的频率和固定数量的时钟周期上的参考时钟之间的差异来确定系统时钟的时钟误差，以及调整系统时钟的修整值以补偿时钟误差。 例如，用delta-sigma循环校准系统时钟可以减少时间误差。 这允许系统时钟的精确调整，以补偿由于调整分辨率，电路噪声和温度引起的误差。

    METHOD AND APPARATUS FOR AUTOMATIC CONFIGURATION OF IMPLANTABLE MEDICAL DEVICES
    4.
    发明申请
    METHOD AND APPARATUS FOR AUTOMATIC CONFIGURATION OF IMPLANTABLE MEDICAL DEVICES 有权
    用于自动配置可植入医疗器械的方法和装置

    公开(公告)号：US20150088216A1

    公开(公告)日：2015-03-26

    申请号：US14248939

    申请日：2014-04-09

    Applicant: Medtronic, Inc.

    Inventor： Charles R Gordon ,  Paul G Krause ,  Grant Alan Neitzell ,  Shantanu Sarkar ,  Ryan Wyszynski

    IPC: A61N1/37 ,  A61N1/362

    CPC classification number: A61N1/3704 ,  A61B5/0006 ,  A61B5/0031 ,  A61N1/3624 ,  G06F19/00 ,  G06F19/3418 ,  G06F19/3481

    Abstract: A system including a programmable implantable monitoring device and a programmer for programming the device and a method of use thereof. The programmer may be configured to transmit programming commands responsive to entry of a reason for monitoring to the implantable device including a prioritization of an arrhythmia storage criterion. The implantable may be configured to thereafter store and/or transmit records of the arrhythmia according to the prioritization. The programmer may be configured to transmit the patient's age to the implantable device and the implantable may be configured to thereafter apply arrhythmia detection criteria based upon the patient's age.

    Abstract translation: 一种包括可编程可植入监测装置和用于编程装置的编程器的系统及其使用方法。 编程器可以被配置为响应于将用于监视的原因输入到可植入装置来发送编程命令，包括心律失常存储标准的优先级。 可植入物可以被配置为此后根据优先级来存储和/或发送心律不齐的记录。 编程器可以被配置为将患者的年龄传送到可植入装置，并且可植入物可以被配置为此后基于患者的年龄应用心律失常检测标准。

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