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    • 71. 发明授权
    • System and method for automatically selecting electrode polarity during sensing and stimulation
    • US06477417B1
    • 2002-11-05
    • US09835006
    • 2001-04-12
    • Paul A. Levine
    • Paul A. Levine
    • A61N137
    • A61N1/3627A61N1/368A61N1/3684A61N1/3918
    • An implantable multi-chamber cardiac stimulation device includes flexibly programmable electrode stimulation configurations, and is capable of precisely controlling the stimulation sequence between multiple sites. The stimulation device provides a plurality of connection ports that allow independent connection of each electrical lead associated with a particular stimulation site in the heart. Each connection port further provides a unique terminal for making electrical contact with only one electrode such that no two electrodes are required to be electrically coupled. Furthermore, each electrode, whether residing on a unipolar, bipolar or multipolar lead, may be selectively connected or disconnected through programmable switching circuitry that determines the electrode configurations to be used for sensing and for stimulating at each stimulation site. The stimulation device allows for the programmable selection of each electrode terminal connection to a relatively positive or negative battery potential. In this way, each electrode, when electrically connected, may be programmed to act as the cathode or as the anode during sensing or stimulation delivery. Thus, directionality of the depolarization wave may be controlled by programming the cathode and anode assignments of the stimulation electrodes.
    • 74. 发明授权
    • Implantable stimulation device and method for determining ventricular and atrial sensitivity thresholds
    • 植入式刺激装置和确定心室和心房灵敏度阈值的方法
    • US06311089B1
    • 2001-10-30
    • US09378149
    • 1999-08-20
    • Brian M. MannMelinda EndayaPaul A. Levine
    • Brian M. MannMelinda EndayaPaul A. Levine
    • A61N136
    • A61N1/3712A61N1/368A61N1/3682A61N1/3714
    • A pacemaker programmer and diagnostic system retrieves information stored within a pacemaker and analyzes the retrieved data in real time. The stored information can be retrieved by a telemetry communication link. The programmer includes features for allowing the physician to interactively adjust program parameters while viewing the results of parameter changes in real-time. The programmer performs a ventricular sensitivity threshold test by setting the stimulation device to an atrial tracking mode, and by assessing the ventricular sensing of the pacemaker. If ventricular sensing is confirmed, the processor performs a ventricular sensitivity threshold test to determine the pacemaker ventricular sensitivity threshold, and then automatically adjusts the ventricular sensitivity to within a safety margin from the ventricular sensitivity threshold. The programmer also performs an atrial sensitivity threshold test by setting the stimulation device to the atrial tracking mode, and by assessing the atrial sensing of the pacemaker. If atrial sensing is confirmed, the programmer determines whether the base rate is less than the sensed atrial rate by 20 BPM or more; if so, the processor performs an atrial sensitivity threshold test to determine the pacemaker atrial sensitivity threshold, and automatically adjusts the atrial sensitivity to within a safety margin from the atrial sensitivity threshold.
    • 起搏器程序员和诊断系统检索存储在起搏器内的信息,并实时分析检索到的数据。 存储的信息可以通过遥测通信链路检索。 程序员包括允许医师在实时观察参数变化结果时交互式地调整程序参数的功能。 程序员通过将刺激装置设置为心房跟踪模式,并通过评估起搏器的心室感应来执行心室灵敏度阈值测试。 如果确认心室感应,则处理器执行心室灵敏度阈值测试,以确定起搏器心室灵敏度阈值,然后自动将心室灵敏度调整到距心室灵敏度阈值以内的安全范围内。 程序员还通过将刺激装置设置为心房跟踪模式以及通过评估起搏器的心房感测来执行心房敏感性阈值测试。 如果确认心房感应,程序员确定基本速率是否小于感测到的心房率20 BPM以上; 如果是这样,处理器执行心房敏感性阈值测试来确定起搏器心房敏感度阈值,并且将心房敏感度自动地调整到从心房敏感度阈值以内的安全边界内。
    • 76. 发明授权
    • Pacemaker and method of operating same that provides functional atrial
cardiac pacing with ventricular support
    • 起搏器和操作方法,提供功能性心房心脏起搏与心室支持
    • US6122546A
    • 2000-09-19
    • US128284
    • 1998-08-03
    • Jason A. SholderPaul A. LevineJoseph J. FlorioGene A. Bornzin
    • Jason A. SholderPaul A. LevineJoseph J. FlorioGene A. Bornzin
    • A61N1/362A61N1/365A61N1/368
    • A61N1/36585A61N1/3627A61N1/3682
    • A special type of AV/PV hysteresis is provided in a dual-chamber pacemaker. A long AV delay is initially provided, thereby affording as much opportunity as possible for natural AV conduction to occur. Such long AV delay is automatically shortened should AV block occur. Periodic scanning for the return of AV conduction (absence of AV block) is performed so that the AV delay can be returned to its long value as soon as possible. In one embodiment, the pacemaker "learns" the natural conduction time (AR interval) of the patient and thereafter uses such learned natural conduction time as a reference against which subsequently measured AR intervals are compared to better distinguish conducted ventricular contractions from ectopic, pathologic, or other nonconducted ventricular contractions (e.g., PVC's). If the measured AR interval is approximately the same as the "learned" AR interval, then the R-wave at the conclusion of the measured AR interval is presumed to be a conducted R-wave that signals the return of AV conduction, and the AV delay is lengthened back to its original value. If, on the other hand, the measured AR interval is significantly different than the "learned" natural conduction time, then the R-wave at the conclusion of the measured AR interval is presumed to be a nonconducted R-wave, and the AV delay is kept short. In other embodiments, other techniques are used to distinguish a conducted R-wave from a nonconducted R-wave.
    • 在双室起搏器中提供特殊类型的AV / PV滞后。 最初提供长的AV延迟,从而为自然AV传导提供尽可能多的机会。 如果发生AV块,这样长的AV延迟会自动缩短。 进行AV导通(AV区域不存在)的返回的周期性扫描,使得AV延迟可以尽可能快地返回到其长值。 在一个实施例中,起搏器“学习”患者的自然传导时间(AR间隔),此后使用这种学习的自然传导时间作为参考,随后比较随后测量的AR间隔以更好地区分进行的心室收缩与异位,病理, 或其他非导管性心室收缩(例如PVC)。 如果测量的AR间隔与“学习”的AR间隔大致相同,则在测量的AR间隔结束时的R波被推定为用于表示AV传导返回的传导R波,AV 延迟延长到原来的价值。 另一方面,如果测量的AR间隔与“学习”的自然传导时间显着不同,则在测量的AR间隔结束时的R波被推定为非导通的R波,并且AV延迟 保持短暂。 在其他实施例中,使用其它技术来区分传导的R波和非导通的R波。
    • 77. 发明授权
    • DDI pacing with PVC-protected hysteresis and automatic AV interval
adjustment
    • DDI起搏带有PVC保护滞后和自动AV间隔调整
    • US5417714A
    • 1995-05-23
    • US60765
    • 1993-05-11
    • Paul A. LevineMalcolm ClarkeJohn W. PooreJason A. Sholder
    • Paul A. LevineMalcolm ClarkeJohn W. PooreJason A. Sholder
    • A61N1/365A61N1/362A61N1/368A61N1/36
    • A61N1/368A61N1/3622A61N1/3682
    • A dual-chamber pacemaker provides DDI pacing with PVC-protected hysteresis and automatic AV interval adjustment. An extended hysteresis atrial escape interval (AEI.sub.H) is invoked in response to the occurrence of either an atrial paced event followed by a sensed R-wave (an AR event), or an atrial sensed event followed by a sensed R-wave (a PR event). The occurrence of a premature ventricular contraction (PVC) thus does not trigger AEI.sub.H. In one embodiment, AEI.sub.H is not invoked unless the sensed AR or PR interval exceeds a prescribed reference interval. In a further embodiment, the AV interval (AVI) associated with the DDI operation is automatically shortened following an atrial stimulation pulse (A-pulse) delivered upon the timing-out of the AEI.sub.H. The shortened AVI is maintained for a programmed number of cycles of DDI operation, after which a lengthened AVI is reestablished for one cycle. If AV pacing follows after using the lengthened AVI, then the shortened AVI is reinstated for a second number of programmed cycles of DDI operation. If AR pacing follows after using the lengthened AVI, signifying intact AV nodal conduction, then the AVI is lengthened to the programmed AVI over a prescribed number of cycles.
    • 双室心脏起搏器为DDI起搏提供PVC保护的滞后和自动AV间隔调整。 响应于发生心房起搏事件,随后是感测到的R波(AR事件)或心房感测事件,随后是感测的R波(PR),调节延长的心房逸出间隔时间(AEIH) 事件)。 因此早期心室收缩(PVC)的发生不会引发AEIH。 在一个实施例中,除非感测到的AR或PR间隔超过规定的参考间隔,否则AEIH不被调用。 在另一个实施例中,在AEIH超时之后递送的心房刺激脉冲(A脉冲)之后,与DDI操作相关联的AV间隔(AVI)自动缩短。 缩短的AVI维持编程的DDI操作周期数,之后延长的AVI重新建立一个周期。 如果在使用延长的AVI之后进行AV起搏,则缩短的AVI将恢复DDI操作的第二个编程周期数。 如果在使用延长的AVI后进行AR起搏,则表示完整的AV节点传导,则AVI在规定数量的周期内延长到编程的AVI。
    • 79. 发明授权
    • Implantable cardiac device providing AV interval hysteresis to promote intrinsic conduction while providing PMT avoidance and method
    • 植入式心脏装置提供AV间隔滞后,以提供内在传导,同时提供PMT回避和方法
    • US07986993B1
    • 2011-07-26
    • US11769602
    • 2007-06-27
    • Paul A. Levine
    • Paul A. Levine
    • A61N1/18
    • A61N1/37A61N1/3622A61N1/3682
    • An implantable cardiac stimulation device provides AV interval hysteresis to promote intrinsic conduction while providing PMT avoidance. The device comprises a pulse generator that provides atrial and ventricular pacing stimulation pulses on demand separated by an AV interval, an AV hysteresis circuit that extends the AV interval from a base AV interval to an extended AV interval to promote intrinsic heart activity, and a refractory circuit that establishes a PVARP following each provided ventricular pacing pulse including a lengthened PVARP longer in duration than a normal PVARP responsive to the AV hysteresis circuit extending the AV interval from the base AV interval to the extended AV interval.
    • 植入式心脏刺激装置提供AV间隔滞后以促进固有传导,同时提供PMT避免。 所述装置包括:脉冲发生器,其根据需要由AV间隔分开提供心房和心室起搏刺激脉冲; AV滞后电路,其将AV间隔从基本AV间隔延伸到延伸的AV间隔以促进内在的心脏活动;以及耐火材料 电路,其在每个提供的心室起搏脉冲之后建立PVARP,其包括延长的PVARP,其持续时间长于正常PVARP,所述PVARP响应于将AV间隔从基本AV间隔延伸到扩展AV间隔的AV滞后电路。