Physiological event detection systems and methods
    91.
    发明授权
    Physiological event detection systems and methods 有权
    生理事件检测系统和方法

    公开(公告)号:US07713213B2

    公开(公告)日:2010-05-11

    申请号:US11276735

    申请日:2006-03-13

    IPC分类号: A61B5/02

    摘要: Systems and methods using constant false alarm rate techniques for event detection. One example of an event detection method includes collecting a first distribution of measurements for a first physiological parameter. In another example, the first distribution of measurements includes only non-event measurements. One or more values are determined corresponding to at least a first tail area of the first distribution from at least one measurement of the first physiological parameter toward an end point of the distribution. A threshold is established based on a specified false alarm rate. The one or more values are compared to the threshold. The method includes determining if the measurement is representative of a detected event using the comparison.

    摘要翻译: 用于事件检测的常数误报率技术的系统和方法。 事件检测方法的一个示例包括收集第一生理参数的测量的第一分布。 在另一示例中,测量的第一分布仅包括非事件测量。 从第一生理参数的至少一个测量到分布的终点,确定对应于第一分布的至少第一尾区的一个或多个值。 基于指定的虚警率建立阈值。 将一个或多个值与阈值进行比较。 该方法包括使用比较来确定测量是否表示检测到的事件。

    METHOD FOR CORRECTION OF POSTURE DEPENDENCE ON HEART SOUNDS
    92.
    发明申请
    METHOD FOR CORRECTION OF POSTURE DEPENDENCE ON HEART SOUNDS 有权
    矫正心脏依赖关系的方法

    公开(公告)号:US20100099997A1

    公开(公告)日:2010-04-22

    申请号:US12645906

    申请日:2009-12-23

    IPC分类号: A61B5/02

    摘要: A system to monitor heart sounds. The system comprises an implantable heart sound sensor configured to produce an electrical signal representative of at least one heart sound, an implantable posture sensor operable to produce an electrical signal representative of a patient's posture, and a controller circuit. The controller circuit is configured to determine a patient posture, measure at least one heart sound in correspondence with at least one corresponding patient posture, adjust the heart sound measurement by using the corresponding determined patient posture to reduce or remove variation in the heart sound measurement due to patient posture, detect a change in the adjusted heart sound measurement, and provide an indication of congestive heart failure to a user or an automated process in response to the detected change.

    摘要翻译: 监听心音的系统 该系统包括被配置为产生表示至少一个心音的电信号的可植入心音传感器,可操作以产生表示患者姿势的电信号的可植入姿态传感器和控制器电路。 控制器电路被配置为确定患者姿势,测量与至少一个对应的患者姿势相对应的至少一个心音,通过使用相应的确定的患者姿势来调整心脏声音测量,以减少或消除心音测量中的变化 到患者姿势,检测调整后的心音测量的变化,并响应于检测到的变化向用户或自动化过程提供充血性心力衰竭的指示。

    Method and apparatus for third heart sound detection
    93.
    发明申请
    Method and apparatus for third heart sound detection 有权
    第三心音检测方法及装置

    公开(公告)号:US20090018461A1

    公开(公告)日:2009-01-15

    申请号:US12283760

    申请日:2008-09-16

    IPC分类号: A61B5/02

    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。

    Method and apparatus for third heart sound detection
    94.
    发明授权
    Method and apparatus for third heart sound detection 有权
    第三心音检测方法及装置

    公开(公告)号:US07431699B2

    公开(公告)日:2008-10-07

    申请号:US10746853

    申请日:2003-12-24

    IPC分类号: A61B5/02

    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: 心律管理系统包括用于检测第三心音的心音检测器(S 3)。 诸如加速度计或麦克风的可植入传感器感测到指示包括第二心音(S 2)和S 3的心音的声信号。 心音检测器检测到S 2的发生,并且在检测到的S 2发生之后,在预定延迟之后开始S 3检测窗口。 然后从S 3检测窗口内的声信号检测出S 3的出现。

    Method and apparatus for monitoring of diastolic hemodynamics
    96.
    发明授权
    Method and apparatus for monitoring of diastolic hemodynamics 有权
    用于监测舒张血流动力学的方法和装置

    公开(公告)号:US08636669B2

    公开(公告)日:2014-01-28

    申请号:US12985055

    申请日:2011-01-05

    IPC分类号: A61B5/02

    摘要: A cardiac rhythm management system provides for ambulatory monitoring of hemodynamic performance based on quantitative measurements of heart sound related parameters for diagnostic and therapeutic purposes. Monitoring of such heart sound related parameters allows the cardiac rhythm management system to determine a need for delivering a therapy and/or therapy parameter adjustments based on conditions of a heart. This monitoring also allows a physician to observe or assess the hemodynamic performance for diagnosing and making therapeutic decisions. Because the conditions of the heart may fluctuate and may deteriorate significantly between physician visits, the ambulatory monitoring, performed on a continuous or periodic basis, ensures a prompt response by the cardiac rhythm management system that may save a life, prevent hospitalization, or prevent further deterioration of the heart.

    摘要翻译: 心律管理系统基于用于诊断和治疗目的的心音相关参数的定量测量,提供对血液动力学性能的动态监测。 监测这种心脏声音相关参数允许心律管理系统基于心脏的情况来确定递送治疗和/或治疗参数调整的需要。 该监测还允许医师观察或评估用于诊断和作出治疗决定的血液动力学性能。 由于心脏的状况可能波动,并且可能在医师访问之间显着恶化,所以在连续或周期性的基础上进行的动态监测可确保心律管理系统能够节省生命,预防住院或进一步防止心律失常的迅速反应 心脏恶化

    Rhythm discrimination using information indicative of lead motion
    98.
    发明授权
    Rhythm discrimination using information indicative of lead motion 有权
    使用指示铅运动的信息进行节律辨别

    公开(公告)号:US08478392B2

    公开(公告)日:2013-07-02

    申请号:US13168481

    申请日:2011-06-24

    IPC分类号: A61B5/04

    摘要: Systems and methods for rhythm discrimination using the motion of an implantable lead are described. In an example, an implantable medical device can include a receiver circuit configured to be electrically coupled to an implantable lead and be configured to obtain information indicative of a movement of the implantable lead due at least in part to a motion of a heart. The device can include an arrhythmia detection circuit configured to determine an arrhythmia status using the information indicative of the movement of the implantable lead and an arrhythmia classification circuit configured to determine one or more of a location or a type of an arrhythmia, using the information indicative of the movement of the implantable lead, when the arrhythmia status indicates that an arrhythmia is occurring or has occurred.

    摘要翻译: 描述使用可植入引线的运动进行节律辨别的系统和方法。 在一个示例中,可植入医疗设备可以包括被配置为电耦合到可植入引线的接收器电路,并且被配置为获得至少部分地基于心脏的运动而指示可植入引线的运动的信息。 该装置可以包括心律失常检测电路,其被配置为使用指示可植入引线的移动的信息来确定心律失常状态,以及心律失常分类电路,其被配置为使用所述信息指示来确定心律不齐的位置或类型中的一个或多个 当心律失常状态表示发生心律失常或发生心律失常时,可植入性铅的运动。

    HEART SOUND TRACKING SYSTEM AND METHOD
    99.
    发明申请

    公开(公告)号:US20130096451A1

    公开(公告)日:2013-04-18

    申请号:US13708196

    申请日:2012-12-07

    IPC分类号: A61B7/00

    摘要: A system and method provide heart sound tracking, including an input circuit, configured to receive heart sound information, and a heart sound recognition circuit. The heart sound recognition circuit can be coupled to the input circuit and can be configured to recognize, within a particular heart sound of a particular heart sound waveform, a first intra heart sound energy indication and a corresponding first intra heart sound time indication using the heart sound information from the particular heart sound waveform and the heart sound information from at least one other heart sound waveform. The particular heart sound can include at least a portion of one of S1, S2, S3, and S4. Further, the first intra heart sound energy indication and the corresponding first intra heart sound time indication can correspond to the at least a portion of one of S1, S2, S3, and S4, respectively.