METHOD AND APPARATUS FOR DETECTING ATRIAL FILLING PRESSURE
    4.
    发明申请
    METHOD AND APPARATUS FOR DETECTING ATRIAL FILLING PRESSURE 有权
    用于检测心律灌注压的方法和装置

    公开(公告)号:US20070066913A1

    公开(公告)日:2007-03-22

    申请号:US11558967

    申请日:2006-11-13

    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

    Hemodynamic status assessment during tachycardia
    5.
    发明申请
    Hemodynamic status assessment during tachycardia 有权
    心动过速时的血液动力学状态评估

    公开(公告)号:US20090131999A1

    公开(公告)日:2009-05-21

    申请号:US12283234

    申请日:2008-09-10

    IPC分类号: A61N1/00

    摘要: Systems and methods provide for sensing, during an event of tachycardia, hemodynamic signals concurrently from at least two spatially separated locations within a patient, and quantifying a spatial relationship between the hemodynamic signals. Hemodynamic stability or state of the patient during the tachycardia event is determine based at least in part on the quantified spatial relationship. One or more anti-tachycardia therapies to treat the tachycardia may be selected based at least in part on the determined stability or state of patient hemodynamics, and the selected one or more anti-tachycardia therapies may be delivered to treat the tachycardia. The hemodynamic signals may comprise at least two, or a mixed combination, of cardiac impedance signals, cardiac chamber pressure signals, arterial pressure signals, heart sounds; and acceleration signals.

    摘要翻译: 系统和方法提供在心动过速事件期间从患者内的至少两个空间上分离的位置同时感测血液动力学信号,并且量化血液动力学信号之间的空间关系。 至少部分地基于定量的空间关系确定在心动过速事件期间患者的血流动力学稳定性或状态。 可以至少部分地基于所确定的患者血液动力学的稳定性或状态来选择治疗心动过速的一种或多种抗心动过速疗法,并且可以递送所选择的一种或多种抗心动过速疗法以治疗心动过速。 血液动力学信号可以包括心脏阻抗信号,心室压力信号,动脉压信号,心音的至少两个或混合组合; 和加速度信号。

    Hemodynamic status assessment during tachycardia
    6.
    发明授权
    Hemodynamic status assessment during tachycardia 有权
    心动过速时的血液动力学状态评估

    公开(公告)号:US08838240B2

    公开(公告)日:2014-09-16

    申请号:US12283234

    申请日:2008-09-10

    摘要: Systems and methods provide for sensing, during an event of tachycardia, hemodynamic signals concurrently from at least two spatially separated locations within a patient, and quantifying a spatial relationship between the hemodynamic signals. Hemodynamic stability or state of the patient during the tachycardia event is determined based at least in part on the quantified spatial relationship. One or more anti-tachycardia therapies to treat the tachycardia may be selected based at least in part on the determined stability or state of patient hemodynamics, and the selected one or more anti-tachycardia therapies may be delivered to treat the tachycardia. The hemodynamic signals may comprise at least two, or a mixed combination, of cardiac impedance signals, cardiac chamber pressure signals, arterial pressure signals, heart sounds; and acceleration signals.

    摘要翻译: 系统和方法提供在心动过速事件期间从患者内的至少两个空间上分离的位置同时感测血液动力学信号,并且量化血液动力学信号之间的空间关系。 至少部分地基于定量的空间关系确定在心动过速事件期间患者的血流动力学稳定性或状态。 可以至少部分地基于所确定的患者血液动力学的稳定性或状态来选择治疗心动过速的一种或多种抗心动过速疗法,并且可以递送所选择的一种或多种抗心动过速疗法以治疗心动过速。 血液动力学信号可以包括心脏阻抗信号,心室压力信号,动脉压信号,心音的至少两个或混合组合; 和加速度信号。

    Systems and methods for valvular regurgitation detection
    7.
    发明申请
    Systems and methods for valvular regurgitation detection 有权
    瓣膜反流检测系统及方法

    公开(公告)号:US20070123943A1

    公开(公告)日:2007-05-31

    申请号:US11287978

    申请日:2005-11-28

    IPC分类号: A61N1/00

    CPC分类号: A61N1/3627 A61N1/36578

    摘要: A system comprising an implantable medical device (IMD). The IMD includes an implantable sensor operable to produce an electrical signal representative of mechanical activity of a heart of a subject and a controller circuit coupled to the sensor. The controller circuit includes a wavelet filter module and a valvular regurgitation (VR) calculation module. The wavelet filter module is configured to extract signal energy information from the electrical signal. The energy information includes variation of signal amplitude with frequency and time. The VR calculation module is configured to calculate a measurement of VR for one or more heartbeats using the energy information.

    摘要翻译: 一种包括可植入医疗装置(IMD)的系统。 IMD包括可植入传感器,其可操作以产生代表受试者心脏的机械活动的电信号和耦合到传感器的控制器电路。 控制器电路包括小波滤波器模块和瓣膜反流(VR)计算模块。 小波滤波器模块被配置为从电信号中提取信号能量信息。 能量信息包括信号幅度随频率和时间的变化。 VR计算模块被配置为使用能量信息来计算针对一个或多个心跳的VR的测量。

    Systems and methods for multi-axis cardiac vibration measurements
    8.
    发明申请
    Systems and methods for multi-axis cardiac vibration measurements 有权
    用于多轴心脏振动测量的系统和方法

    公开(公告)号:US20060270939A1

    公开(公告)日:2006-11-30

    申请号:US11135985

    申请日:2005-05-24

    IPC分类号: A61B5/02

    CPC分类号: A61B7/00 A61N1/08

    摘要: A system to monitor heart sounds, such as to detect a worsening condition of heart failure decompensation. The system comprises a medical device that includes an implantable multi-axis heart sound sensor, operable to produce, for each of at least two nonparallel axes, an electrical signal representative of at least one heart sound, the heart sound associated with mechanical activity of a patient's heart. The device further includes a controller circuit coupled to the heart sound sensor. The controller circuit measures components of the heart sound that respectively correspond to each of the axes.

    摘要翻译: 监测心脏声音的系统,例如检测心力衰竭代偿失调的恶化情况。 该系统包括医疗装置,其包括可植入的多轴心音传感器,可操作以针对至少两个不平行的轴中的每一个产生代表至少一个心脏声音的电信号,所述心脏声音与 病人的心。 该装置还包括耦合到心脏声音传感器的控制器电路。 控制器电路测量分别对应于每个轴的心音的分量。

    Trending of systolic murmur intensity for monitoring cardiac disease with implantable device
    9.
    发明申请
    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:US20060253159A1

    公开(公告)日:2006-11-09

    申请号:US11122749

    申请日:2005-05-05

    IPC分类号: A61N1/365

    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。

    THIRD HEART SOUND ACTIVITY INDEX FOR HEART FAILURE MONITORING
    10.
    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:US20070078491A1

    公开(公告)日:2007-04-05

    申请号:US11465878

    申请日:2006-08-21

    IPC分类号: A61N1/00

    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 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。