METHOD AND APPARATUS FOR THIRD HEART SOUND DETECTION
    2.
    发明申请
    METHOD AND APPARATUS FOR THIRD HEART SOUND DETECTION 有权
    用于第三次心脏检测的方法和装置

    公开(公告)号:US20130085407A1

    公开(公告)日:2013-04-04

    申请号:US13685170

    申请日:2012-11-26

    IPC分类号: A61B7/04

    CPC分类号: A61B7/04

    摘要: A cardiac rhythm management system includes a heart sound detector providing for detection of the third heart sounds (S3). An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including the second heart sounds (S2) and S3. The heart sound detector detects occurrences of S2 and starts S3 detection windows each after a predetermined delay after a detected occurrence of S2. The occurrences of S3 are then detected from the acoustic signal within the S3 detection windows.

    摘要翻译: 心律管理系统包括提供检测第三心音的心音检测器(S3)。 诸如加速度计或麦克风的可植入传感器感测指示包括第二心音(S2)和S3的心音的声信号。 心音检测器检测到S2的发生,并且在检测到S2发生之后经过预定延迟之后开始S3检测窗口。 然后从S3检测窗口内的声信号检测S3的出现。

    THIRD HEART SOUND ACTIVITY INDEX FOR HEART FAILURE MONITORING
    3.
    发明申请
    THIRD HEART SOUND ACTIVITY INDEX FOR HEART FAILURE MONITORING 有权
    心脏失败监测的第三心音活动指标

    公开(公告)号:US20120271186A1

    公开(公告)日:2012-10-25

    申请号:US13540092

    申请日:2012-07-02

    IPC分类号: A61B7/00

    摘要: A cardiac rhythm management system provides for the trending of a third heart sound (S3) index. The S3 index is a ratio, or an estimate of the ratio, of the number of S3 beats to the number of all heart heats, where the S3 beats are each a heart beat during which an occurrence of S3 is detected. An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including S3. An S3 detector detects occurrences of S3 from the acoustic signal. A heart sound processing system trends the S3 index on a periodic basis to allow continuous monitoring of the S3 activity level, which is indicative of conditions related to heart failure.

    摘要翻译: 心律管理系统提供第三心音(S3)指数的趋势。 S3指数是S3搏动次数与所有心脏热量的比率或比率的估计值,其中S3跳动各自是检测到S3的发生的心跳。 诸如加速度计或麦克风的可植入传感器感测到包括S3的指示心音的声信号。 S3检测器从声信号检测出S3的发生。 心脏声音处理系统周期性地推动S3指数,以允许连续监测S3活动水平,这表明与心力衰竭有关的病症。

    Phonocardiographic image-based atrioventricular delay optimization
    4.
    发明授权
    Phonocardiographic image-based atrioventricular delay optimization 有权
    基于心音图像的房室延迟优化

    公开(公告)号:US07123962B2

    公开(公告)日:2006-10-17

    申请号:US10307896

    申请日:2002-12-02

    IPC分类号: A61N1/365

    摘要: A cardiac rhythm management system provides a phonocardiographic image indicative of a heart's mechanical events related to hemodynamic performance to allow, among other things, diagnosis of cardiac conditions and evaluation of therapies treating the cardiac conditions. The phonocardiographic image includes a stack of acoustic sensor signal segments representing multiple cardiac cycles. Each acoustic sensor signal segment includes heart sounds indicative of the heart's mechanical events and representations of the heart's electrical events. The diagnosis and/or therapy evaluation are performed by observing or detecting at least an occurrence of a particular heart sound related to a cardiac time interval or a trend of a particular time interval between an electrical event and a mechanical event over the cardiac time interval.

    摘要翻译: 心律管理系统提供指示与血液动力学性能相关的心脏的机械事件的心音图像,以允许除了别的以外,还可以诊断心脏状况和评估治疗心脏病症的疗法。 心音图像包括表示多个心动周期的一组声传感器信号段。 每个声学传感器信号段包括指示心脏的机械事件和心脏电气事件的表示的心脏声音。 诊断和/或治疗评估通过观察或检测与心脏时间间​​隔相关的特定心音的发生,或者在心脏时间间​​隔上的电事件和机械事件之间的特定时间间隔的趋势。

    Third heart sound activity index for heart failure monitoring
    6.
    发明授权
    Third heart sound activity index for heart failure monitoring 有权
    心力衰竭监测的第三心音活动指数

    公开(公告)号:US08500650B2

    公开(公告)日:2013-08-06

    申请号:US13540092

    申请日:2012-07-02

    IPC分类号: A61B5/02 A61B7/04

    摘要: A cardiac rhythm management system provides for the trending of a third heart sound (S3) index. The S3 index is a ratio, or an estimate of the ratio, of the number of S3 beats to the number of all heart heats, where the S3 beats are each a heart beat during which an occurrence of S3 is detected. An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including S3. An S3 detector detects occurrences of S3 from the acoustic signal. A heart sound processing system trends the S3 index on a periodic basis to allow continuous monitoring of the S3 activity level, which is indicative of conditions related to heart failure.

    摘要翻译: 心律管理系统提供第三心音(S3)指数的趋势。 S3指数是S3搏动次数与所有心脏热量的比率或比率的估计值,其中S3跳动各自是检测到S3的发生的心跳。 诸如加速度计或麦克风的可植入传感器感测到包括S3的指示心音的声信号。 S3检测器从声信号检测出S3的发生。 心脏声音处理系统周期性地推动S3指数,以允许连续监测S3活动水平,这表明与心力衰竭有关的病症。

    SENSING RATE OF CHANGE OF PRESSURE IN THE LEFT VENTRICLE WITH AN IMPLANTED DEVICE
    8.
    发明申请
    SENSING RATE OF CHANGE OF PRESSURE IN THE LEFT VENTRICLE WITH AN IMPLANTED DEVICE 有权
    在具有嵌入式装置的左心室中的压力变化率的感测率

    公开(公告)号:US20120330174A1

    公开(公告)日:2012-12-27

    申请号:US13605397

    申请日:2012-09-06

    IPC分类号: A61B7/04 A61M5/168 A61N1/365

    摘要: An implantable device and method for monitoring S1 heart sounds with a remotely located accelerometer. The device includes a transducer that converts heart sounds into an electrical signal. A control circuit is coupled to the transducer. The control circuit is configured to receive the electrical signal, identify an S1 heart sound, and to convert the S1 heart sound into electrical information. The control circuit also generates morphological data from the electrical information. The morphological data relates to a hemodynamic metric, such as left ventricular contractility. A housing may enclose the control circuit. The housing defines a volume coextensive with an outer surface of the housing. The transducer is in or on the volume defined by the housing.

    摘要翻译: 一种用远程位置加速度计监测S1心音的可植入装置和方法。 该装置包括将心音转换为电信号的换能器。 控制电路耦合到换能器。 控制电路被配置为接收电信号,识别S1心音,并将S1心音转换为电信息。 控制电路还从电信息生成形态数据。 形态学数据涉及血流动力学指标,如左心室收缩力。 壳体可以包围控制电路。 壳体限定与壳体的外表面共同延伸的体积。 传感器位于由外壳限定的体积中。

    MANAGING PRELOAD RESERVE BY TRACKING THE VENTRICULAR OPERATING POINT WITH HEART SOUNDS
    9.
    发明申请
    MANAGING PRELOAD RESERVE BY TRACKING THE VENTRICULAR OPERATING POINT WITH HEART SOUNDS 有权
    通过用心脏声音追踪心室操作点来管理前端保留

    公开(公告)号:US20120203116A1

    公开(公告)日:2012-08-09

    申请号:US13447506

    申请日:2012-04-16

    摘要: A system and method for managing preload reserve and tracking the inotropic state of a patient's heart. The S1 heart sound is measured as a proxy for direct measurement of stroke volume. The S3 heart sound may be measured as a proxy for direct measurement of preload level. The S1-S3 pair yield a point on a Frank Starling type of curve, and reveal information regarding the patient's ventricular operating point and inotropic state. As an alternative, or in addition to, measurement of the S3 heart sound, the S4 heart sound may be measured or a direct pressure measurement may be made for the sake of determining the patient's preload level. The aforementioned measurements may be made by a cardiac rhythm management device, such as a pacemaker or implantable defibrillator.

    摘要翻译: 一种用于管理预负荷储备并跟踪患者心脏的变力状态的系统和方法。 测量S1心音作为直接测量行程体积的代理。 可以将S3心音测量为用于直接测量预载水平的代理。 S1-S3对在Frank Starling曲线上产生一个点,并显示关于患者的心室手术点和变力状态的信息。 作为S3心音的测量或除了测量S3心音之外,也可以测量S4心音,或者为了确定患者的预压水平可以进行直接的压力测量。 上述测量可以由诸如起搏器或可植入除颤器的心律管理装置进行。

    Third heart sound activity index for heart failure monitoring
    10.
    发明授权
    Third heart sound activity index for heart failure monitoring 有权
    心力衰竭监测的第三心音活动指数

    公开(公告)号:US08211033B2

    公开(公告)日:2012-07-03

    申请号:US11465878

    申请日:2006-08-21

    IPC分类号: A61B5/02 A61B7/04

    摘要: A cardiac rhythm management system provides for the trending of a third heart sound (S3) index. The S3 index is a ratio, or an estimate of the ratio, of the number of S3 beats to the number of all heart beats, where the S3 beats are each a heart beat during which an occurrence of S3 is detected. An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including S3. An S3 detector detects occurrences of S3 from the acoustic signal. A heart sound processing system trends the S3 index on a periodic basis to allow continuous monitoring of the S3 activity level, which is indicative of conditions related to heart failure.

    摘要翻译: 心律管理系统提供第三心音(S3)指数的趋势。 S3指数是S3跳动次数与所有心跳次数的比率或比率的估计,其中S3跳动各自是检测到S3的发生的心跳。 诸如加速度计或麦克风的可植入传感器感测到包括S3的指示心音的声信号。 S3检测器从声信号检测出S3的发生。 心脏声音处理系统周期性地推动S3指数,以允许连续监测S3活动水平,这表明与心力衰竭有关的病症。