DETERMINING A PATIENT'S POSTURE FROM MECHANICAL VIBRATIONS OF THE HEART
    31.
    发明申请
    DETERMINING A PATIENT'S POSTURE FROM MECHANICAL VIBRATIONS OF THE HEART 有权
    从心脏的机械振动中确定患者的姿势

    公开(公告)号:US20090247889A1

    公开(公告)日:2009-10-01

    申请号:US12484108

    申请日:2009-06-12

    IPC分类号: A61B5/02

    摘要: A system for determining a patient's posture by monitoring heart sounds. The system comprises an implantable medical device that includes a sensor operable to produce an electrical signal representative of heart sounds, a sensor interface circuit coupled to the sensor to produce a heart sound signal, and a controller circuit coupled to the sensor interface circuit. The heart sounds are associated with mechanical activity of a patient's heart and the controller circuit is operable to detect a posture of the patient from a heart sound signal.

    摘要翻译: 通过监测心脏声音来确定患者姿势的系统。 该系统包括可植入医疗装置,其包括可操作以产生表示心脏声音的电信号的传感器,耦合到传感器以产生心音信号的传感器接口电路,以及耦合到传感器接口电路的控制器电路。 心脏声音与患者心脏的机械活动相关联,并且控制器电路可操作以从心脏声音信号检测患者的姿势。

    Trending of systolic murmur intensity for monitoring cardiac disease with implantable device
    32.
    发明授权
    Trending of systolic murmur intensity for monitoring cardiac disease with implantable device 有权
    用植入式装置监测心脏病的收缩期杂音强度的趋势

    公开(公告)号:US07404802B2

    公开(公告)日:2008-07-29

    申请号:US11122749

    申请日:2005-05-05

    IPC分类号: A61B5/02

    摘要: Described is an implantable device configured to monitor for changes in the intensity and/or duration of a systolic murmur such as mitral regurgitation by means of an acoustic sensor. Such changes may be taken to indicate a change in a patient's heart failure status. Upon detection of a worsening in the patient's heart failure statue, the device may be programmed to alert clinical personnel over a patient management network and/or make appropriate adjustments to pacing therapy.

    摘要翻译: 描述了被配置为通过声学传感器监测收缩期杂音如二尖瓣反流的强度和/或持续时间的变化的可植入装置。 可以采取这种改变来指示患者心力衰竭状态的变化。 当检测到患者的心力衰竭雕像恶化时,该装置可以被编程以通过患者管理网络警告临床人员和/或对起搏治疗进行适当的调整。

    Phonocardiographic image-based atrioventricular delay optimization
    34.
    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。

    Systems and methods for ranking and selection of pacing vectors
    36.
    发明授权
    Systems and methods for ranking and selection of pacing vectors 有权
    起搏向量的排序和选择的系统和方法

    公开(公告)号:US08886313B2

    公开(公告)日:2014-11-11

    申请号:US12822487

    申请日:2010-06-24

    摘要: Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.

    摘要翻译: 描述了评估潜在的左心室(LV)起搏向量的方法。 执行早期消除测试以确定LV阴极的可行性。 基于早期消除测试,一些LV阴极被进一步测试消除。 确定为阴极的LV阴极被进一步测试。 测试可行的LV阴极电极的血液动力学效能。 然后测量包含可行的LV阴极电极和阳极电极的潜在LV起搏向量的心脏捕获和膈神经激活阈值。 潜在的LV起搏向量基于LV阴极的血液动力学功效,心脏捕获阈值和膈神经激活阈值中的一种或多种进行排名。

    Cardiac mechanical vibration monitor using information indicative of lead motion
    37.
    发明授权
    Cardiac mechanical vibration monitor using information indicative of lead motion 有权
    心脏机械振动监测器使用指示引导运动的信息

    公开(公告)号:US08532770B2

    公开(公告)日:2013-09-10

    申请号:US13168547

    申请日:2011-06-24

    IPC分类号: A61N1/365

    摘要: Systems and methods to monitor cardiac mechanical vibrations using information indicative of lead motion are described. In an example, a system including an implantable medical device can include an excitation circuit configured to provide a non-tissue stimulating, non-therapeutic electrical excitation signal to a portion of an implantable lead. A receiver circuit can be configured to obtain information indicative of a mechanical vibration of the implantable lead due at least in part to one or more of an impact of at least a portion of the heart to the implantable lead, or friction contact between the implantable lead and cardiac tissue. The system can include a processor circuit configured to determine one or more of a lead mechanical status, or information indicative of valvular activity using the information indicative of the mechanical vibration of the implantable lead.

    摘要翻译: 描述使用指示引导运动的信息来监测心脏机械振动的系统和方法。 在一个示例中,包括可植入医疗装置的系统可以包括被配置为向可植入引线的一部分提供非组织刺激的非治疗电激励信号的激励电路。 接收器电路可以被配置为获得指示可植入引线的机械振动的信息,其至少部分地由至少一部分心脏到可植入引线的冲击或可植入引线之间的摩擦接触 和心脏组织。 该系统可以包括处理器电路,其被配置为使用指示可植入引线的机械振动的信息来确定引导机械状态或指示瓣膜活动的信息中的一个或多个。

    Third heart sound activity index for heart failure monitoring
    38.
    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。

    REMOTE SENSING IN AN IMPLANTABLE MEDICAL DEVICE
    40.
    发明申请
    REMOTE SENSING IN AN IMPLANTABLE MEDICAL DEVICE 有权
    可移植医疗设备中的远程感测

    公开(公告)号:US20130023956A1

    公开(公告)日:2013-01-24

    申请号:US13626628

    申请日:2012-09-25

    IPC分类号: A61N1/372

    摘要: An embodiment uses an accelerometer to sense heart sounds, and determines heart rate information using the sensed heart sounds. An embodiment uses an accelerometer to sense respiratory activity. An embodiment delivers a programmed neural stimulation therapy with a programmed duty cycle, where the programmed duty cycle includes a stimulation ON portion followed by a stimulation OFF portion. An electrode electrically connected to the implanted neural stimulation device is used to remotely detect cardiac activity. The remotely detected cardiac activity is used to detect heart rate information during the stimulation ON portion and to detect heart rate information during the stimulation OFF portion. The detected heart rate information and/or the detected respiration information are used to control a neural stimulation therapy performed by the neural stimulator device and/or are used to provide diagnostic information for the patient's condition.

    摘要翻译: 一个实施例使用加速度计来感测心脏声音,并且使用感测到的心脏声音来确定心率信息。 一个实施例使用加速计来感测呼吸活动。 实施例以编程的占空比递送编程的神经刺激疗法,其中编程的占空比包括刺激开启部分,随后是刺激关闭部分。 电连接到植入的神经刺激装置的电极用于远程检测心脏活动。 远程检测到的心脏活动用于在刺激ON部分期间检测心率信息,并在刺激OFF部分期间检测心率信息。 检测到的心率信息和/或检测到的呼吸信息用于控制由神经刺激器装置执行的神经刺激治疗和/或用于提供患者状况的诊断信息。