Devices and method for accelerometer-based characterization of cardiac synchrony and dyssynchrony
    1.
    发明授权
    Devices and method for accelerometer-based characterization of cardiac synchrony and dyssynchrony 有权
    用于心脏同步和不同步的基于加速度计的装置和方法

    公开(公告)号:US08831705B2

    公开(公告)日:2014-09-09

    申请号:US13230084

    申请日:2011-09-12

    申请人: John Daniel Dobak

    发明人: John Daniel Dobak

    IPC分类号: A61B5/053

    摘要: Systems and methods according to the invention employ an acceleration sensor to characterize the synchrony or dyssynchrony of the left ventricle. Patterns of acceleration related to myocardial contraction can be used to assess synchrony or dyssynchrony. Time-frequency transforms and coherence are derived from the acceleration. Information and numerical indices determined from the acceleration time frequency transforms and coherence can be used to find the optimal pacing location for cardiac resynchronization therapy. Similarly, the information can be used to optimize timing intervals including V to V and A to V timing.

    摘要翻译: 根据本发明的系统和方法采用加速度传感器来表征左心室的同步或不同步。 与心肌收缩相关的加速模式可用于评估同步或不同步。 时频变换和相干性来自加速度。 从加速时间频率确定的信息和数值指数变换和相干性可用于找到心脏再同步治疗的最佳起搏位置。 类似地,该信息可用于优化包括V至V和A至V定时的定时间隔。

    Devices and methods for accelerometer-based characterization of cardiac function and identification of LV target pacing zones
    2.
    发明授权
    Devices and methods for accelerometer-based characterization of cardiac function and identification of LV target pacing zones 失效
    用于基于加速度计的心脏功能表征的装置和方法以及LV目标起搏区域的识别

    公开(公告)号:US08118751B2

    公开(公告)日:2012-02-21

    申请号:US12396420

    申请日:2009-03-02

    IPC分类号: A61B5/04

    摘要: Systems according to the invention employ an acceleration sensor to characterize displacement and vibrational LV motion, and uses this motion data to characterize the different phases of the LV cycle for analyzing LV function. Systems may identify a target pacing region or regions in the LV or RV using the acceleration sensor by localizing regions of late onset of motion relative to the QRS, or isovolumic contraction, or mitral valve closure, or by pacing of target regions and measuring LV function in response to pacing. Systems further provide an implantable or non-implantable acceleration sensor device for measuring LV motion and characterizing LV function. An implantable myocardial acceleration sensing system (“IAD”) includes at least one acceleration sensor, a data acquisition and processing device, and an electromagnetic, e.g., RF, communication device. The IAD may be integrated into the pacing lead of a CRT device and can operate independently of the CRT IPG.

    摘要翻译: 根据本发明的系统采用加速度传感器来表征位移和振动LV运动,并且使用该运动数据来表征用于分析LV功能的LV循环的不同相位。 系统可以使用加速度传感器来识别LV或RV中的目标起搏区域或区域,通过将相对于QRS的运动迟发性区域,或等容性收缩或二尖瓣闭合定位,或通过起搏区域和测量LV功能来定位 响应起搏。 系统还提供用于测量LV运动和表征LV功能的可植入或不可植入的加速度传感器装置。 可植入心肌加速度感测系统(“IAD”)包括至少一个加速度传感器,数据采集和处理装置以及电磁(例如RF)通信装置。 IAD可以集成到CRT设备的起搏引线中,并且可独立于CRT IPG进行操作。