LEADLESS PACING SYSTEM INCLUDING SENSING EXTENSION

    公开(公告)号:US20160015322A1

    公开(公告)日:2016-01-21

    申请号:US14694910

    申请日:2015-04-23

    Abstract: A leadless pacing system includes a leadless pacing device and a sensing extension extending from a housing of the leadless pacing device. The sensing extension includes one or more electrodes with which the leadless pacing device may sense electrical cardiac activity. The one or more electrodes of the sensing extension may be carried by a self-supporting body that is configured to passively position the one or more electrodes proximate or within a chamber of the heart other than the chamber in which the LPD is implanted.

    IMD stability monitor
    114.
    发明授权
    IMD stability monitor 有权
    IMD稳定性监视器

    公开(公告)号:US09101281B2

    公开(公告)日:2015-08-11

    申请号:US13626381

    申请日:2012-09-25

    Abstract: Techniques for determining an attachment stability of leadless pacing device (LPD) implanted within a patient are described. For example, the LPD may detect one or more stability metrics from one or more electrodes of the LPD and/or an activity sensor within the LPD. Based on one or more of these stability metrics, e.g., a mechanical motion of the LPD, a stability module within the LPD may determine the attachment stability of the LPD within the patient. If the attachment stability is insufficient to provide efficacious therapy or indicates at least partial dislodgement of the LPD from tissue, the LPD may wirelessly transmit stability information to an external device. In some examples, the LPD may be implanted within a chamber of the heart.

    Abstract translation: 描述了用于确定植入在患者体内的无引脚起搏装置(LPD)的附着稳定性的技术。 例如,LPD可以从LPD的一个或多个电极和/或LPD内的活动传感器检测一个或多个稳定性度量。 基于这些稳定性度量中的一个或多个,例如LPD的机械运动,LPD内的稳定性模块可以确定患者体内LPD的附着稳定性。 如果连接稳定性不足以提供有效的治疗或指示LPD至少部分从组织移走,则LPD可以将稳定性信息无线传输到外部设备。 在一些实例中,LPD可以植入心脏的腔室内。

    CAPTURE THRESHOLD MEASUREMENT FOR SELECTION OF PACING VECTOR
    115.
    发明申请
    CAPTURE THRESHOLD MEASUREMENT FOR SELECTION OF PACING VECTOR 有权
    捕获阈值测量用于选择PACING矢量

    公开(公告)号:US20140135867A1

    公开(公告)日:2014-05-15

    申请号:US13790683

    申请日:2013-03-08

    CPC classification number: A61N1/371 A61N1/3686 A61N1/3712

    Abstract: Various techniques for facilitating selection of a pacing vector for pacing a chamber of a heart are described. One example method described includes, for each of a plurality of vectors, delivering a pacing pulse to capture a first heart chamber, determining a first time interval between the pacing pulse and a sensed event in a second heart chamber, determining a capture detection window in response to the determined first time interval, and enabling a capture detection module to iteratively decrease a pacing pulse magnitude delivered in the first heart chamber until an event in the second heart chamber is not sensed during the determined capture detection window.

    Abstract translation: 描述了用于促进选择用于心脏室的起搏矢量的各种技术。 所描述的一个示例性方法包括:对于多个向量中的每一个,递送起搏脉冲以捕获第一心室,确定起搏脉冲与第二心室中的感测事件之间的第一时间间隔,确定第二心室中的捕获检测窗口 响应于确定的第一时间间隔,并且使得捕获检测模块能够迭代地减少在第一心室中递送的起搏脉冲幅度,直到在确定的捕获检测窗口期间没有感测到在第二心室中的事件。

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