Selective resynchronization therapy optimization based on user preference
    72.
    发明授权
    Selective resynchronization therapy optimization based on user preference 有权
    基于用户偏好的选择性再同步治疗优化

    公开(公告)号:US08041426B2

    公开(公告)日:2011-10-18

    申请号:US12565344

    申请日:2009-09-23

    IPC分类号: A61N1/365

    摘要: A method and system for calculating an atrio-ventricular delay interval based upon an inter-atrial delay exhibited by a patient's heart. The aforementioned atrio-ventricular delay interval may optimize the stroke volume exhibited by a patient's heart. The aforementioned atrio-ventricular delay interval may be blended with another atrio-ventricular delay interval that may optimize another performance characteristic, such as left ventricular contractility. Such blending may include finding an arithmetic mean, geometric mean, or weighted mean of two or more proposed atrio-ventricular delay intervals.

    摘要翻译: 一种用于根据患者心脏表现的心房间延迟来计算心房延迟间隔的方法和系统。 上述的心室延迟间隔可以优化患者心脏展示的搏动量。 上述房室延迟间隔可以与可以优化另一性能特征(例如左心室收缩力)的另一心房延迟间隔混合。 这种混合可以包括找到两个或更多个提出的心房延迟间隔的算术平均值,几何平均值或加权平均值。

    Method and apparatus for optimizing ventricular synchrony during DDD resynchronization therapy using adjustable atrio-ventricular delays
    73.
    发明授权
    Method and apparatus for optimizing ventricular synchrony during DDD resynchronization therapy using adjustable atrio-ventricular delays 有权
    在使用可调节心室延迟的DDD再同步治疗期间优化心室同步的方法和装置

    公开(公告)号:US08032214B2

    公开(公告)日:2011-10-04

    申请号:US12424136

    申请日:2009-04-15

    IPC分类号: A61N1/362

    摘要: A pacing system for providing optimal hemodynamic cardiac function for parameters such as ventricular synchrony or contractility (peak left ventricle pressure change during systole or LV+dp/dt), or stroke volume (aortic pulse pressure) using system for calculating atrio-ventricular delays for optimal timing of a ventricular pacing pulse. The system providing an option for near optimal pacing of multiple hemodynamic parameters. The system deriving the proper timing using electrical or mechanical events having a predictable relationship with an optimal ventricular pacing timing signal.

    摘要翻译: 用于为诸如心室同步或收缩性(收缩期左心室压力峰值或LV + dp / dt)之间的参数提供最佳血液动力学心脏功能或行程体积(主动脉脉压)的起搏系统,用于计算心室间期延迟 心室起搏脉冲的最佳时机。 该系统为多个血液动力学参数的近似最佳起搏提供了选择。 该系统使用与最佳心室起搏定时信号具有可预测关系的电或机械事件导出适当的定时。

    Dynamic device therapy control for treating post myocardial infarction patients
    74.
    发明授权
    Dynamic device therapy control for treating post myocardial infarction patients 有权
    用于治疗心肌梗死后患者的动态装置治疗控制

    公开(公告)号:US07844330B2

    公开(公告)日:2010-11-30

    申请号:US11689646

    申请日:2007-03-22

    IPC分类号: A61N1/362

    CPC分类号: A61N1/365

    摘要: A cardiac rhythm management system includes an implantable device executing a dynamic pacing algorithm after an myocardial infarction (MI) event. The dynamic pacing algorithm dynamically adjusts one or more pacing parameters based on a person's gross physical activity level. Examples of the one or more pacing parameters include atrioventricular pacing delays and pacing channels/sites. The dynamic pacing algorithm provides for improved hemodynamic performance when a person's metabolic need is high, and post MI remodeling control when the person's metabolic need is low.

    摘要翻译: 心律管理系统包括在心肌梗死(MI)事件之后执行动态起搏算法的可植入装置。 动态起搏算法根据人的总身体活动水平动态调整一个或多个起搏参数。 一个或多个起搏参数的示例包括房室起搏延迟和起搏通道/部位。 当人的代谢需求高时,动态起搏算法提供改善的血液动力学性能,并且当人的代谢需求低时,进行MI重建控制。

    Systems and Methods for Improving Heart Rate Kinetics in Heart Failure Patients
    76.
    发明申请
    Systems and Methods for Improving Heart Rate Kinetics in Heart Failure Patients 有权
    改善心力衰竭患者心率动力学的系统和方法

    公开(公告)号:US20090312815A1

    公开(公告)日:2009-12-17

    申请号:US12545676

    申请日:2009-08-21

    IPC分类号: A61N1/368 A61N1/365

    CPC分类号: A61N1/3627 A61N1/36542

    摘要: Adaptive rate pacing for improving heart rate kinetics in heart failure patients involves determining onset and sustaining of patient activity. The patient's heart rate response to the sustained activity is evaluated during a time window defined between onset of the activity and a steady-state exercise level. If the patient's heart rate response to the sustained activity is determined to be slow, a pacing therapy is delivered at a rate greater than the patient's intrinsic heart rate based on a profile of the patient's heart rate response to varying workloads. If determined not to be slow, the pacing therapy is withheld. Monitoring-only configurations provide for acquisition and organization of physiological data for heart failure patients. These data can be acquired on a per-patient basis and used to assess the HF status of the patient.

    摘要翻译: 用于改善心力衰竭患者心率动力学的适应性起搏速率包括确定患者活动的发病和持续时间。 在活动开始和稳态运动水平之间定义的时间窗口期间评估患者对持续活动的心率反应。 如果患者对持续活动的心率反应被确定为缓慢,则基于患者对不同工作负荷的心率反应的简档,起搏治疗以大于患者内在心率的速率递送。 如果确定不要慢,起搏疗法就被扣留。 仅监测配置提供心脏病患者生理数据的采集和组织。 这些数据可以在每个患者的基础上获得,并用于评估患者的HF状态。

    Method and system for delivering cardiac resynchronization therapy with variable atrio-ventricular delay
    77.
    发明授权
    Method and system for delivering cardiac resynchronization therapy with variable atrio-ventricular delay 有权
    用心脏再同步治疗可变心房延迟的方法和系统

    公开(公告)号:US07630764B2

    公开(公告)日:2009-12-08

    申请号:US11206394

    申请日:2005-08-18

    IPC分类号: A61N1/00

    摘要: A pacing system computes optimal cardiac resynchronization pacing parameters using intrinsic conduction intervals. In various embodiments, values for atrio-ventricular delay intervals are each computed as a function of an intrinsic atrio-ventricular interval and a parameter reflective of an interventricular conduction delay. Examples of the parameter reflective of the interventricular conduction delay include QRS width and interval between right and left ventricular senses.

    摘要翻译: 起搏系统使用内在导电间隔计算最佳心脏再同步起搏参数。 在各种实施例中,心室间隔延迟间隔的值各自被计算为内在房室间隔和反映室间传导延迟的参数的函数。 反映室间传导延迟的参数的示例包括QRS宽度和右心室感觉和左心室感觉之间的间隔。

    Thoracic or intracardiac impedance detection with automatic vector selection
    78.
    发明授权
    Thoracic or intracardiac impedance detection with automatic vector selection 有权
    胸部或心内阻抗检测与自动矢量选择

    公开(公告)号:US07630763B2

    公开(公告)日:2009-12-08

    申请号:US11110418

    申请日:2005-04-20

    IPC分类号: A61B5/053 A61B5/0295

    摘要: This document discusses, among other things, a cardiac function management device or other implantable medical device that includes a test mode and a diagnostic mode. During a test mode, the device cycles through various electrode configurations for collecting thoracic impedance data. At least one figure of merit is calculated from the impedance data for each such electrode configuration. In one example, only non-arrhythmic beats are used for computing the figure of merit. A particular electrode configuration is automatically selected using the figure of merit. During a diagnostic mode, the device collects impedance data using the selected electrode configuration. In one example, the figure of merit includes a ratio of a cardiac stroke amplitude and a respiration amplitude. Other examples of the figure of merit are also described.

    摘要翻译: 本文件还讨论了包括测试模式和诊断模式的心脏功能管理装置或其它可植入医疗装置。 在测试模式期间,器件循环通过各种电极配置来收集胸部阻抗数据。 从每个这样的电极配置的阻抗数据计算至少一个品质因数。 在一个例子中,仅使用非心律失常节拍来计算品质因数。 使用品质因数自动选择特定的电极配置。 在诊断模式下,设备使用所选择的电极配置收集阻抗数据。 在一个示例中,品质因数包括心搏幅度和呼吸振幅的比值。 还描述了品质因数的其它实例。

    Modulation of AV delay to control ventricular interval variability
    79.
    发明申请
    Modulation of AV delay to control ventricular interval variability 有权
    调节AV延迟以控制心室间隔变异性

    公开(公告)号:US20090054944A1

    公开(公告)日:2009-02-26

    申请号:US11894081

    申请日:2007-08-20

    IPC分类号: A61N1/365

    CPC分类号: A61N1/368 A61N1/3682

    摘要: System and methods provide pacing therapy that modulates the atrioventricular (AV) delay to control ventricular interval variability. A base AV delay is determined as a function of heart rate. For each cardiac cycle, the base AV delay is modulated to reduce beat-to-beat variability of successive ventricular beats. The modulated AV delay compensates for variability of successive atrial beats. For example, modulation of the base AV delay may involve varying the AV delay inversely with a change in atrial interval.

    摘要翻译: 系统和方法提供调节房室(AV)延迟以控制心室间隔变异性的起搏治疗。 基础AV延迟被确定为心率的函数。 对于每个心动周期,调整基底AV延迟以减少连续心室搏动的搏动到搏动变化。 调制的AV延迟补偿连续心房搏动的变异性。 例如,基本AV延迟的调制可能涉及改变AV延迟与心房间隔的变化相反。

    METHOD AND APPARATUS FOR PREDICTING ACUTE RESPONSE TO CARDIAC RESYNCHRONIZATION THERAPY
    80.
    发明申请
    METHOD AND APPARATUS FOR PREDICTING ACUTE RESPONSE TO CARDIAC RESYNCHRONIZATION THERAPY 有权
    预防心脏康复治疗急性反应的方法和装置

    公开(公告)号:US20080097542A1

    公开(公告)日:2008-04-24

    申请号:US11962708

    申请日:2007-12-21

    IPC分类号: A61N1/365

    CPC分类号: A61N1/3627 A61N1/3682

    摘要: A method and apparatus for predicting acute response to cardiac resynchronization therapy is disclosed. The method can comprise measuring a first interval during an intrinsic systolic cycle and measuring a second interval during a stimulated systolic cycle. The acute response can be predicted by comparing the percent change in duration between the first interval and the second interval against a pre-determined threshold value. The first and second time intervals can be measured using, for example, a surface ECG or, alternatively, an intracardiac electrogram. In one embodiment, the first interval can be the duration of an intrinsic QRS complex measured during a non-stimulated systolic cycle. Similarly, the second interval can be the duration of a stimulated QRS complex measured during a stimulated systolic cycle.

    摘要翻译: 公开了用于预测心脏再同步治疗的急性反应的方法和装置。 该方法可以包括在本征收缩周期期间测量第一间隔并且在刺激的收缩期期间测量第二间隔。 可以通过将第一间隔和第二间隔之间的持续时间的百分比变化与预定阈值进行比较来预测急性反应。 第一和第二时间间隔可以使用例如表面ECG或者心内电描记图来测量。 在一个实施例中,第一间隔可以是在非刺激的收缩期期间测量的固有QRS复合物的持续时间。 类似地,第二间隔可以是在刺激的收缩期期间测量的受激QRS复合物的持续时间。