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    CONTROL OF SPECTRAL AGRESSORS IN A PHYSIOLOGICAL SIGNAL MONITORING DEVICE
    2.
    发明公开
    CONTROL OF SPECTRAL AGRESSORS IN A PHYSIOLOGICAL SIGNAL MONITORING DEVICE 有权
    STEUERUNG VON SPEKTRALEN AGGRESSOREN BEI EINER PHYSIOLOGISCHENSIGNALÜBERWACHUNGSVORRICHTUNG

    公开(公告)号：EP2968948A1

    公开(公告)日：2016-01-20

    申请号：EP14712982.9

    申请日：2014-03-07

    申请人： Medtronic, Inc.

    发明人： STANSLASKI, Scott R. ,  CARLSON, David L. ,  CONG, Peng ,  DENISON, Timothy J. ,  LINDE, David E. ,  JENSEN, Randy M.

    IPC分类号： A61N1/37 ,  A61N1/36 ,  A61B5/04 ,  A61B5/048 ,  A61B5/00 ,  H03F3/38

    CPC分类号： A61B5/7225 ,  A61B5/04004 ,  A61B5/04012 ,  A61B5/0428 ,  A61B5/048 ,  A61B5/0496 ,  A61B5/7217 ,  A61N1/36125 ,  A61N1/3702 ,  A61N1/3704 ,  H03F3/38 ,  H03F2200/261

    摘要： This disclosure describes techniques for controlling spectral aggressors in a sensing device that uses a chopper amplifier to amplify an input signal prior to sampling the signal. In some examples, the techniques for controlling spectral aggressors may include generating a chopper-stabilized amplified version of an input signal based on a chopper frequency, sampling the chopper-stabilized amplified version of the input signal at a sampling rate to generate a sampled signal, and analyzing a target frequency band of the sampled signal. The chopper frequency and sampling rate may cause spectral interference that is generated due to the chopper frequency to occur in the sampled signal at one or more frequencies that are outside of the target frequency band of the sampled signal. The techniques for controlling spectral aggressors may reduce the noise caused by the chopper frequency in the resulting sampled signal, thereby improving the quality of the signal.

    摘要翻译： 本公开描述了用于控制感测装置中的频谱侵入者的技术，其在采样信号之前使用斩波放大器放大输入信号。 在一些示例中，用于控制频谱侵入者的技术可以包括基于斩波频率产生输入信号的斩波稳定放大版本，以采样率对输入信号的斩波稳定放大版本进行采样以产生采样信号， 并分析采样信号的目标频带。 斩波频率和采样率可能导致由于斩波频率在采样信号中在采样信号的目标频带之外的一个或多个频率处发生的频谱干扰。 用于控制频谱侵入者的技术可以降低由所得到的采样信号中的斩波频率引起的噪声，从而提高信号的质量。

    METHOD FOR DETERMINING OVERSENSING IN AN IMPLANTABLE DEVICE
    8.
    发明公开
    METHOD FOR DETERMINING OVERSENSING IN AN IMPLANTABLE DEVICE 有权
    设备用测定OVER感应可植入的产品

    公开(公告)号：EP2079520A1

    公开(公告)日：2009-07-22

    申请号：EP07842837.2

    申请日：2007-09-20

    申请人： Medtronic, Inc.

    发明人： CAO, Jian ,  GILLBERG, Jeffrey M. ,  SHRIVASTAV, Maneesh A. ,  STANSLASKI, Scott R.

    IPC分类号： A61N1/37 ,  A61B5/04

    CPC分类号： A61B5/0452 ,  A61B5/7225 ,  A61B5/7264 ,  A61N1/3704

    摘要： An implantable medical device system and method detect oversensing of cardiac signals. A cardiac signal including first events and second events is acquired. Cardiac events are sensed in response to the cardiac signal crossing a first threshold. A filtered cardiac signal is determined from the sensed cardiac signal, and a second threshold is determined from the filtered cardiac signal. A sensed cardiac event is classified either as a first event when the sensed cardiac event corresponds to a filtered cardiac signal peak crossing the second threshold or a second event when the sensed cardiac event corresponds to a filtered cardiac signal peak being less than the second threshold. Classification of sensed cardiac events as second events is used in determining oversensing.