Pace pulse detector for a medical device

    公开(公告)号:US11020038B2

    公开(公告)日:2021-06-01

    申请号:US16278960

    申请日:2019-02-19

    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.

    PACEMAKER EVENT QUEUE TO CONTROL DEVICE PROCESSOR OPERATING POWER
    2.
    发明申请
    PACEMAKER EVENT QUEUE TO CONTROL DEVICE PROCESSOR OPERATING POWER 有权
    控制设备处理器运行功率的PACEMAKER事件队列

    公开(公告)号:US20140100634A1

    公开(公告)日:2014-04-10

    申请号:US14107170

    申请日:2013-12-16

    CPC classification number: A61N1/378 A61N1/08 A61N1/3708

    Abstract: In the present disclosure, conservation of an implantable medical device power supply of is facilitated by controlling the power consumption of the device's processing component. The power supplied to the processing component is controlled to enable processing of received events as a function of predetermined criteria rather than the actual occurrence of the events which is frequent, but irregular. Accordingly, the need for the processing component to start and stop (and thereby be fully powered on each start) with receipt of each event is obviated thereby maintaining the power consumption of the processing component and increasing longevity of the device. Event data associated with received events is stored in an event queue and subsequently retrieved and transmitted for processing based on predetermined criteria. The power supplied during an idle state of the processing component may be reduced in relation to the power supplied during a wake up state.

    Abstract translation: 在本公开中,通过控制装置的处理部件的功率消耗来促进植入式医疗装置电源的保护。 控制提供给处理组件的功率,以便能够根据预定标准处理接收到的事件,而不是频繁但不规则的事件的实际发生。 因此,消除了处理部件在接收到每个事件时开始和停止(并且由此在每次启动时完全供电)的需要,从而维持处理部件的功耗并延长了设备的使用寿命。 与接收到的事件相关联的事件数据被存储在事件队列中,随后根据预定标准进行检索和发送以进行处理。 在处理组件的空闲状态期间提供的功率可以相对于在唤醒状态期间提供的功率而减小。

    Pace pulse detector for an implantable medical device

    公开(公告)号:US10226197B2

    公开(公告)日:2019-03-12

    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.

    METHOD AND APPARATUS FOR ATRIAL ARRHYTHMIA EPISODE DETECTION
    4.
    发明申请
    METHOD AND APPARATUS FOR ATRIAL ARRHYTHMIA EPISODE DETECTION 有权
    ATRIAL ARRHYTHMIA EPISODE检测方法与装置

    公开(公告)号:US20160235992A1

    公开(公告)日:2016-08-18

    申请号:US14695111

    申请日:2015-04-24

    Abstract: A method and implantable medical device for determining an atrial arrhythmia event that includes sensing a cardiac signal, determining an atrial arrhythmia score for identifying the arrhythmia event in response to the sensed cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window having a first portion and a second portion, determining signal characteristics of the sensed cardiac signal within the first portion and within the second portion, determining whether the sensed cardiac signal within the first portion and within the second portion corresponds to a P-wave in response to the determined signal characteristics, determining whether a signal to noise ratio of the sensed cardiac signal within the first portion and the second portion of the sensing window is satisfied, determining whether to update the arrhythmia score in response to the determined P-wave and the determined signal to noise ratio, and determining whether to delivery an arrhythmia therapy in response to the updated arrhythmia score.

    Abstract translation: 一种用于确定房性心律失常事件的方法和可植入医疗装置,包括感测心脏信号,确定心房心律失常评分以响应于所感测到的心脏信号来识别心律失常事件,响应于感测的心脏信号确定感测窗口, 检测窗口具有第一部分和第二部分,确定第一部分内部和第二部分内感测到的心脏信号的信号特征,确定第一部分内部和第二部分内感测的心脏信号是否对应于P波 响应于确定的信号特性,确定是否满足感测窗口的第一部分和第二部分内感测到的心脏信号的信噪比,响应于所确定的P波来确定是否更新心律失常评分 并确定信噪比,并确定是否发送 响应于更新的心律失常评分的心律失常治疗。

    METHOD AND APPARATUS FOR ATRIAL ARRHYTHMIA EPISODE DETECTION
    5.
    发明申请
    METHOD AND APPARATUS FOR ATRIAL ARRHYTHMIA EPISODE DETECTION 有权
    ATRIAL ARRHYTHMIA EPISODE检测方法与装置

    公开(公告)号:US20160235320A1

    公开(公告)日:2016-08-18

    申请号:US14695171

    申请日:2015-04-24

    Abstract: A method and implantable medical device for determining noise in response to a cardiac signal that includes sensing the cardiac signal, determining a sensing window in response to the sensed cardiac signal, the sensing window comprising a first portion and a second portion, determining a first derivative signal in response to the sensed cardiac signal within only one of the first portion and the second portion of the sensing window, determining a second derivative signal in response to the sensed cardiac signal within the one of the first portion and the second portion of the sensing window, determining whether an amplitude of the second derivative signal satisfies an amplitude threshold, and determining noise in response to the amplitude of the second derivative signal satisfying the amplitude threshold.

    Abstract translation: 一种用于响应于包括感测心脏信号的心脏信号来确定噪声的方法和可植入医疗装置,响应于感测到的心脏信号确定感测窗口,感测窗口包括第一部分和第二部分,确定一阶导数 响应于仅在感测窗口的第一部分和第二部分中的一个内的感测到的心脏信号的信号,响应于感测的第一部分和第二部分中的感测到的心脏信号来确定二阶导数信号 确定二阶微分信号的振幅是否满足幅度阈值,以及响应于满足幅度阈值的二阶导数信号的幅度来确定噪声。

    Pacemaker event queue to control device processor operating power

    公开(公告)号:US08855780B2

    公开(公告)日:2014-10-07

    申请号:US14107170

    申请日:2013-12-16

    CPC classification number: A61N1/378 A61N1/08 A61N1/3708

    Abstract: In the present disclosure, conservation of an implantable medical device power supply of is facilitated by controlling the power consumption of the device's processing component. The power supplied to the processing component is controlled to enable processing of received events as a function of predetermined criteria rather than the actual occurrence of the events which is frequent, but irregular. Accordingly, the need for the processing component to start and stop (and thereby be fully powered on each start) with receipt of each event is obviated thereby maintaining the power consumption of the processing component and increasing longevity of the device. Event data associated with received events is stored in an event queue and subsequently retrieved and transmitted for processing based on predetermined criteria. The power supplied during an idle state of the processing component may be reduced in relation to the power supplied during a wake up state.

    Pace pulse detector for a medical device

    公开(公告)号:US12076153B2

    公开(公告)日:2024-09-03

    申请号:US17321167

    申请日:2021-05-14

    CPC classification number: A61B5/363 A61B5/346 A61B5/686 A61N1/371

    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.

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