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    • 1. 发明授权
    • Cardiac rhythm management system with atrial shock timing optimization
    • 心律节律管理系统与心房休克时序优化
    • US06430438B1
    • 2002-08-06
    • US09316741
    • 1999-05-21
    • Victor T. ChenJay A. WarrenGary T. SeimDavid B. KrigJesse W. HartleyJeffrey E. Stahmann
    • Victor T. ChenJay A. WarrenGary T. SeimDavid B. KrigJesse W. HartleyJeffrey E. Stahmann
    • A61N139
    • A61N1/3962A61N1/3621A61N1/3627A61N1/3682A61N1/395A61N1/3987
    • A cardiac rhythm management system includes atrial shock timing optimization. Because an atrial tachyarrhythmia, such as atrial fibrillation typically causes significant variability in the ventricular heart rate, resulting in potentially proarrhythmic conditions. The system avoids delivering atrial cardioversion/defibrillation therapy during potentially proarrhythmic conditions because doing so could result in dangerous ventricular arrhythmias. Using Ventricular Rate Regularization (“VRR”) techniques, the system actively stabilizes the ventricular heart rate to obtain less potentially proarrhythmic conditions for delivering the atrial tachyarrhythmia therapy. The intrinsic ventricular heart rate is stabilized at a variable VRR-indicated rate, computed using an infinite impulse response (IIR) filter, and based on the underlying intrinsic ventricular heart rate. The system withholds delivery of atrial cardioversion/defibrillation therapy until the intervals between ventricular beats (“V-V intervals”) meet certain criteria that decrease the chance that the atrial cardioversion/defibrillation therapy will induce a ventricular arrhythmia.
    • 心律管理系统包括心房休克时序优化。 因为房性心律失常,例如心房颤动,通常会导致心室心率的显着变异,导致潜在的心律失常症状。 该系统避免在潜在的心律失常症状期间进行心房复律/除颤治疗,因为这样做可能导致危险的室性心律失常。 使用心室率正常化(“VRR”)技术,该系统主动地稳定心室心率以获得较少的用于递送心房快速性心律失常治疗的潜在致心律失常状况。 使用无限脉冲响应(IIR)滤波器,并且基于潜在的内部心室心率计算,内在心室心率以可变的VRR指示速率被稳定。 系统禁止心房复律/除颤治疗,直到心室搏动之间的间隔(“V-V间隔”)符合某些标准,可降低心房复律/除颤疗法诱发室性心律失常的机会。
    • 10. 发明申请
    • Adaptive Waveform Appraisal in an Implantable Cardiac System
    • 植入式心脏系统中的自适应波形评估
    • US20110098775A1
    • 2011-04-28
    • US12913647
    • 2010-10-27
    • Venugopal AllavatamRick SangheraJay A. Warren
    • Venugopal AllavatamRick SangheraJay A. Warren
    • A61N1/08
    • A61B5/04012A61N1/37A61N1/3706A61N1/3987
    • Methods and implantable devices for cardiac signal analysis. The methods and devices make use of waveform appraisal techniques to distinguish event detections into categories for suspect events and waveform appraisal passing events. When adjustments are made to the data entering analysis for waveform appraisal, the waveform appraisal thresholds applied are modified as well. For example, when the data analysis window for waveform appraisal changes in length, a waveform appraisal threshold is modified. Other changes, including changes in sensing characteristics with which waveform appraisal operates may also result in changes to the waveform appraisal threshold including changes in gain, sensing vector, activation of other devices, implantee posture and other examples which are explained.
    • 用于心脏信号分析的方法和可植入装置。 方法和设备利用波形评估技术将事件检测区分为可疑事件和波形评估传递事件的类别。 当对输入波形评估分析的数据进行调整时,也会修改应用的波形评估阈值。 例如,当波形评估的数据分析窗口长度变化时,波形评估阈值被修改。 其他变化,包括波形评估操作的检测特性的变化也可能导致波形评估阈值的变化,包括增益,感测向量,其他设备的激活,植入者姿势以及其他所示示例的变化。