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    • 1. 发明申请
    • HEART STIMULATOR
    • 心脏刺激器
    • US20080114409A1
    • 2008-05-15
    • US11560099
    • 2006-11-15
    • Jie LianChristopher S. de VoirGarth GarnerHannes KraetschmerDirk Mussig
    • Jie LianChristopher S. de VoirGarth GarnerHannes KraetschmerDirk Mussig
    • A61N1/368
    • A61N1/3622A61N1/3624A61N1/3688
    • Heart stimulator that stimulates at least a heart's right atrium and ventricle in an atrium asynchronous stimulation mode with an overdrive stimulation rate. Interposes one resynchronization cycle after a sensed atrial event to regain AV synchrony during otherwise asynchronous stimulation mode. Allows for pacing mode that can pace the atrium with an overdrive stimulation rate in dual-chamber asynchronous mode while maintaining the AV synchrony and is called DDI(R)+. In DDI(R)+, pacemaker performs an atrial asynchronous (V synchronous) pacing mode such as DDI or DDI(R). The overdrive stimulation rate (OSR) is either a fixed rate (programmed by the external device) that is thought to be above the underlying intrinsic atrial rate, or is dynamically adjusted according to the measured atrial cycle length to be slightly above intrinsic atrial rate. The overdrive stimulation rate may be based on an intrinsic atrial rate or on hemodynamic need. DDI(R)+ timing may be ventricle-based.
    • 心脏刺激器,可以刺激至少一个心脏异位刺激模式的心脏和心室,具有超速刺激速率。 在感应到的心房事件之后插入一个再同步循环,以在其他异步刺激模式下重新获得AV同步。 允许起搏模式,可以在双室异步模式下以过驱动刺激速率调节心房,同时保持AV同步,称为DDI(R)+。 在DDI(R)+中,起搏器执行心房异步(V同步)起搏模式,如DDI或DDI(R)。 超速刺激速率(OSR)是被认为高于潜在固有心房率的固定比率(由外部设备编程),或根据测量的心房周期长度动态调整为略高于固有心房率。 超速刺激速率可以基于固有心房率或血液动力学需要。 DDI(R)+时间可能是基于心室的。
    • 3. 发明申请
    • Adaptive ventricular rate smoothing during atrial fibrillation
    • 心房颤动期间自适应心率平滑
    • US20050187585A1
    • 2005-08-25
    • US11063240
    • 2005-02-22
    • Dirk MussigVolker LangJie Lian
    • Dirk MussigVolker LangJie Lian
    • A61N1/362A61N1/365
    • A61N1/3622A61N1/365
    • An implantable cardiac device is provided for adaptive ventricular rate smoothing during atrial fibrillation (AF). When AF is detected, the operation of the device is switched to non-atrial synchronized pacing mode such as DDI, DDIR, VDI, VDIR, VVI, or VVIR. The ventricular escape interval (VEI) is beat-by-beat modulated around a physiological interval zone (PIZ), which is determined by the pre-arrhythmia ventricular rate or the output of rate responsive sensor. The VEI remains unchanged if the preceding ventricular event is sensed and its RR interval is within the PIZ. Otherwise, the VEI is decreased asymptotically toward a lower interval threshold if the preceding RR interval is longer than the upper limit of the PIZ, or the VEI is increased asymptotically toward an upper interval threshold if the preceding RR interval is shorter than the upper limit of the PIZ. The step of incrementing or decrementing the VEI is adaptive to the absolute difference value between the preceding RR interval and the asymptotic interval threshold to ensure fast recovery of deviant RR interval toward the PIZ and to reduce the amount of high rate ventricular paces after a ventricular sense with very short coupling interval.
    • 提供可植入的心脏装置,用于心房颤动(AF)期间的适应性心室率平滑。 当检测到AF时,设备的操作切换到非心率同步起搏模式,如DDI,DDIR,VDI,VDIR,VVI或VVIR。 心室逃逸间隔(VEI)围绕生理间隔区(PIZ)进行逐搏调制,其由心律失常心室率或速率响应传感器的输出决定。 如果检测到先前的心室事件并且其RR间期在PIZ内,则VEI保持不变。 否则,如果前一个RR间隔长于PIZ的上限,则VEI会逐渐减小到较低的间隔阈值,或者如果前一个RR间隔比上一个RR间隔的上限更短,VEI会渐近地向上限间隔增加 PIZ。 增加或减少VEI的步骤适应于前面的RR间隔和渐近间隔阈值之间的绝对差值,以确保偏离RR间隔向PIZ的快速恢复,并减少心室感觉后的高速率心室起搏量 具有非常短的耦合间隔。
    • 4. 发明授权
    • Adaptive ventricular rate smoothing during atrial fibrillation
    • 心房颤动期间自适应心率平滑
    • US07532929B2
    • 2009-05-12
    • US11063240
    • 2005-02-22
    • Dirk MussigVolker LangJie Lian
    • Dirk MussigVolker LangJie Lian
    • A61N1/08
    • A61N1/3622A61N1/365
    • An implantable cardiac device is provided for adaptive ventricular rate smoothing during atrial fibrillation (AF). When AF is detected, the operation of the device is switched to non-atrial synchronized pacing mode such as DDI, DDIR, VDI, VDIR, VVI, or VVIR. The ventricular escape interval (VEI) is beat-by-beat modulated around a physiological interval zone (PIZ), which is determined by the pre-arrhythmia ventricular rate or the output of rate responsive sensor. The VEI remains unchanged if the preceding ventricular event is sensed and its RR interval is within the PIZ. Otherwise, the VEI is decreased asymptotically toward a lower interval threshold if the preceding RR interval is longer than the upper limit of the PIZ, or the VEI is increased asymptotically toward an upper interval threshold if the preceding RR interval is shorter than the upper limit of the PIZ. The step of incrementing or decrementing the VEI is adaptive to the absolute difference value between the preceding RR interval and the asymptotic interval threshold to ensure fast recovery of deviant RR interval toward the PIZ and to reduce the amount of high rate ventricular paces after a ventricular sense with very short coupling interval.
    • 提供可植入的心脏装置,用于心房颤动(AF)期间的适应性心室率平滑。 当检测到AF时,设备的操作切换到非心率同步起搏模式,如DDI,DDIR,VDI,VDIR,VVI或VVIR。 心室逃逸间隔(VEI)围绕生理间隔区(PIZ)进行逐搏调制,其由心律失常心室率或速率响应传感器的输出决定。 如果检测到先前的心室事件并且其RR间期在PIZ内,则VEI保持不变。 否则,如果前一个RR间隔长于PIZ的上限,则VEI会逐渐减小到较低的间隔阈值,或者如果前一个RR间隔比上一个RR间隔的上限更短,VEI会渐近地向上限间隔增加 PIZ。 增加或减少VEI的步骤适应于前面的RR间隔和渐近间隔阈值之间的绝对差值,以确保偏离RR间隔向PIZ的快速恢复,并减少心室感觉后的高速率心室起搏量 具有非常短的耦合间隔。
    • 5. 发明申请
    • IMPLANTABLE ELECTROSTIMULATOR
    • 可植入电解质
    • US20070265670A1
    • 2007-11-15
    • US11383232
    • 2006-05-15
    • Volker LangJie LianDirk Mussig
    • Volker LangJie LianDirk Mussig
    • A61N1/362
    • A61N1/3622A61N1/3682
    • An implantable cardiac electrostimulator comprising an atrial sensing channel for processing intracardiac electrogram signals and for detecting signals corresponding to atrial activity and for generating an atrial sense event signal upon detection of a signal corresponding to atrial activity, a ventricular sensing channel for processing intracardiac electrogram signals and for detecting signals corresponding to ventricular activity and for generating a ventricular sense event signal upon detection of a signal corresponding to ventricular activity, a VES detector being operatively connected to said atrial and ventricular sensing channel and being adapted to detect ventricular extrasystoles an atrial stimulation pulse generator a ventricular stimulation pulse generator a stimulation control unit being operatively connected to said atrial stimulation pulse generator and said ventricular stimulation pulse generator. The stimulation control unit is adapted to determine a scheduled time of delivery of an atrial stimulation pulse (T(A)) and a scheduled time of delivery of ventricular stimulation pulse (T(V)). The stimulation control unit is further adapted to trigger said atrial stimulation pulse generator or said ventricular stimulation pulse generator at the scheduled point of time T(A) or T(V), respectively, if no atrial sense event signal is generated before time out of an atrial escape interval (VAI), said atrial escape interval timing out at T(A), or if no ventricular sense event signal is generated before time out of a ventricular escape interval (VEI), said ventricular escape interval timing out at T(V), respectively. T(A) und T(V) are determined depending upon detection of a ventricular extra systole while maintaining a proper atrioventricular synchrony by setting a physiologically adequate A-V-delay between T(A) and corresponding T(V).
    • 一种可植入心脏电刺激器,包括用于处理心内电描记信号的心房感测通道,并且用于检测对应于心房活动的信号,并且用于在检测到对应于心房活动的信号时产生心房感测事件信号;心室感测通道,用于处理心内电描记图信号;以及 用于检测对应于心室活动的信号,并且在检测到对应于心室活动的信号时产生心室感测事件信号,VES检测器可操作地连接到所述心房和心室感测通道,并且适于检测心室收缩期心房刺激脉冲发生器 心室刺激脉冲发生器,其可操作地连接到所述心房刺激脉冲发生器和所述心室刺激脉冲发生器的刺激控制单元。 刺激控制单元适于确定预定的心房刺激脉冲(T(A))的输送时间和心室刺激脉冲(T(V))的预定运送时间。 刺激控制单元还适于在预定的时间点T(A)或T(V))分别触发所述心房刺激脉冲发生器或所述心室刺激脉冲发生器,如果在超时之前没有产生心房感测事件信号 心房逸出间隔(VAI),所述心房逃逸间隔在T(A)处超时,或者如果在心室逸出间隔(VEI)之前的时间之前没有产生心室感测事件信号,则所述心室逃逸间隔在T( V)。 通过在T(A)和相应的T(V)之间设置一个生理上足够的A-V延迟来维持室内额外心脏收缩,同时保持适当的房室同步来确定T(A)和T(V)。