DETECTING AND RESPONDING TO ANTI-TACHYARRHYTHMIA SHOCKS

    公开(公告)号:US20180185640A1

    公开(公告)日:2018-07-05

    申请号:US15910032

    申请日:2018-03-02

    Abstract: In some examples, an implantable medical device determines that another medical device delivered an anti-tachyarrhythmia shock, and delivers post-shock pacing in response to the determination. The implantable medical device may be configured to both detect the delivery of the shock in a sensed electrical signal and, if delivery of the shock is not detected, determine that the shock was delivered based on detection of asystole of the heart. The asystole may be detected based on the sensed electrical signal. In some examples, an implantable medical device is configured to revert from a post-shock pacing mode to a baseline pacing mode by iteratively testing a plurality of decreasing values of pacing pulse magnitude until loss of capture is detected. The implantable medical device may update a baseline value of the pacing pulse magnitude for the baseline mode based on the detection of loss of capture.

    PACE PULSE DETECTOR FOR AN IMPLANTABLE MEDICAL DEVICE
    15.
    发明申请
    PACE PULSE DETECTOR FOR AN IMPLANTABLE MEDICAL DEVICE 审中-公开
    用于可植入医疗装置的脉冲检测器

    公开(公告)号:US20150305642A1

    公开(公告)日:2015-10-29

    申请号:US14687053

    申请日:2015-04-15

    Abstract: In situations in which an implantable medical device (e.g., a subcutaneous ICD) is co-implanted with a leadless pacing device (LPD), it may be important that the subcutaneous ICD knows when the LPD is delivering pacing, such as anti-tachycardia pacing (ATP). Techniques are described herein for detecting, with the ICD and based on the sensed electrical signal, pacing pulses and adjusting operation to account for the detected pulses, e.g., blanking the sensed electrical signal or modifying a tachyarrhythmia detection algorithm. In one example, the ICD includes a first pace pulse detector configured to obtain a sensed electrical signal and analyze the sensed electrical signal to detect a first type of pulses having a first set of characteristics and a second pace pulse detector configured to obtain the sensed electrical signal and analyze the sensed electrical signal to detect a second type of pulses having a second set of characteristics.

    Abstract translation: 在可植入医疗器械(例如皮下ICD)与无引线起搏器(LPD)共同植入的情况下,皮下ICD知道LPD何时发出起搏,例如抗心动过速起搏 (ATP)。 本文描述了用于利用ICD并基于所感测到的电信号,用于检测起搏脉冲和调整操作以考虑检测到的脉冲的技术,例如消隐感测的电信号或修改快速性心律失常检测算法。 在一个示例中,ICD包括构造成获得感测到的电信号并分析所感测的电信号以检测具有第一组特性的第一类型的脉冲的第一步调脉冲检测器和被配置成获得所感测的电 信号并分析所感测的电信号以检测具有第二组特性的第二类型的脉冲。

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