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    • 1. 发明授权
    • Apparatus for treating atrial tachyarrhythmias with synchronized shocks
    • 用同步冲击治疗房性快速性心律失常的装置
    • US6091988A
    • 2000-07-18
    • US70690
    • 1998-04-30
    • Eduardo N. WarmanMichael R. S. HillDavid K. L. PetersonRahul MehraLuc R. Mongeon
    • Eduardo N. WarmanMichael R. S. HillDavid K. L. PetersonRahul MehraLuc R. Mongeon
    • A61N1/362A61N1/39
    • A61N1/3956A61N1/3622A61N1/3987
    • An implantable anti-tachyarrhythmia device which delivers atrial cardioversion or defibrillation pulses heart in response to detection of atrial tachyarrhythmias. The pulses are synchronized to atrial and ventricular events in such a fashion as to assure they occur outside of the vulnerable periods associated with both chambers. The device is provided with a pulse synchronizer which defines a first synchronization interval initiated following a sensed atrial event and a second synchronization interval initiated responsive to a sensed ventricular event and a pulse triggerer which triggers delivery of a cardioversion or defibrillation pulse responsive to the first and second synchronization intervals simultaneously being underway. In particular, the pulse triggerer may be responsive to initiation of the first synchronization interval during the second synchronization interval. In addition, the synchronizer may also define minimum time intervals following ventricular events and the triggerer may additionally be responsive to expiration of a defined minimum time interval following a ventricular event preceding the sensed ventricular event which initiated the second synchronization interval currently underway.
    • 一种可植入的抗快速性心律失常装置,其响应于心房快速性心律失常的检测而传送心房心脏复律或除颤脉冲心脏。 这些脉冲以这样的方式与心房和心室事件同步,以确保它们发生在与两个腔室相关联的脆弱周期之外。 该装置设置有脉冲同步器,该脉冲同步器限定在感测的心房事件之后启动的第一同步间隔和响应于感测到的心室事件而发起的第二同步间隔和脉冲触发器,其响应于第一和第二同步间隔触发心脏复律或除颤脉冲的传递 第二同步间隔同时进行。 特别地,脉冲触发器可以响应于在第二同步间隔期间启动第一同步间隔。 此外,同步器还可以定义心室事件之后的最小时间间隔,并且触发器可以另外响应于起始于当前正在进行的第二同步区间的感测的心室事件之前的心室事件之后的限定的最小时间间隔的到期。
    • 4. 发明授权
    • Cardioversion energy reduction system
    • 心律转换能量减少系统
    • US5836976A
    • 1998-11-17
    • US846747
    • 1997-04-30
    • Xiaoyi MinLi WangRahul MehraPaul J. DeGrootWalter H. OlsonLuc R. MongeonMichael R. S. Hill
    • Xiaoyi MinLi WangRahul MehraPaul J. DeGrootWalter H. OlsonLuc R. MongeonMichael R. S. Hill
    • A61N1/39
    • A61N1/3956A61N1/3925A61N1/3987
    • In an implantable pacemaker/cardioverter/defibrillator, a system for correlating the delivery of a cardioversion therapy to an optimum point or phase of the respiratory cycle of the patient to effect delivery of the therapy when the impedance between the cardioversion electrodes is minimized. In a first application for use with cardioversion electrodes located substantially in contact with the heart chamber, the optimum point or phase is at the end of inspiration. In a second application for use with at least one cardioversion electrode located remotely from the heart chamber, the optimum point or phase is at end expiration or beginning of inspiration. The cardioversion therapy is delivered in synchrony with a ventricular sense event, if present. If the optimum point or phase of the respiratory cycle cannot be determined during a therapy time, a pre-shock may be delivered to elicit a respiration cycle through a stimulated contraction of the diaphragm.
    • 在植入式心脏起搏器/心律转复除颤器中,用于将心脏复律治疗的输送与患者呼吸周期的最佳点或阶段相关联的系统,以在心脏复律电极之间的阻抗最小化时实现治疗的传递。 在与基本上与心脏腔室接触的心脏复律电极一起使用的第一个应用中,最佳点或阶段在吸气结束时。 在与远离心脏室的位置的至少一个心脏复律电极一起使用的第二个应用中,最佳点或阶段是结束期满或开始吸气。 复发疗法与心室感觉事件(如果存在)同步传递。 如果在治疗时间内不能确定呼吸周期的最佳点或相位,则可以传送预休克以通过振膜的刺激收缩引起呼吸循环。
    • 7. 发明授权
    • Method and apparatus for diagnosis and treatment of arrhythmias
    • 用于诊断和治疗心律失常的方法和装置
    • US5968079A
    • 1999-10-19
    • US40544
    • 1998-03-18
    • Eduardo N. WarmanRahul Mehra
    • Eduardo N. WarmanRahul Mehra
    • A61N1/39A61N1/368
    • A61N1/3962A61N1/395
    • An implantable medical device which senses atrial electrograms, detects atrial tachyarrhythmias and delivers atrial cardioversion/defibrillation pulses in response thereto, which employ a correlation analysis to assist in detection of arrhythmias and/or timing of delivery of cardioversion/defibrillation shocks. The device includes an electrogram recorder which stores atrial electrogram segments associated with R--R intervals extending over multiple atrial depolarizations and a correlator which measures correlation of successive stored atrial electrogram segments. The device may use the measured corellation meeting a defined threshold value to detect the occurrence of a defined tachyarrhythmia such as atrial fibrillation or allow delivery of a cardioversion/defibrillation pulse.
    • 感测心房电图的可植入医疗装置,检测心房快速性心律失常并响应于此传递心房复律/除颤脉冲,其使用相关分析来辅助检测心律不齐和/或转发/除颤电击的递送时机。 该装置包括电描记录记录器,其存储与跨多个心房去极化延伸的R-R间隔相关联的心房电描绘片段,以及测量连续存储的心房电描记图片段的相关性的相关器。 该装置可以使用满足定义的阈值的测量的核心数来检测定义的心律失常的发生,例如心房颤动或允许递送心脏复律/除颤脉冲。
    • 9. 发明授权
    • Automated reapplication of atrial pacing therapies
    • 心房起搏治疗的自动再次应用
    • US06876880B2
    • 2005-04-05
    • US10034060
    • 2001-12-20
    • Michael F. HessRahul MehraEduardo N. WarmanNirav V. ShethMark L. BrownDavid Ritscher
    • Michael F. HessRahul MehraEduardo N. WarmanNirav V. ShethMark L. BrownDavid Ritscher
    • A61N1/365A61N1/362A61N1/39
    • A61N1/3622A61N1/3624
    • The invention relates to the use of atrial pacing therapies to treat atrial tachycardia (AT). When an AT episode is detected, an implantable medical device applies an ATP therapy. If the AT episode persists, the ATP therapy may be automatically reapplied at a later time during the course of the same AT episode. In particular, previously used ATP therapies are reapplied when episodic conditions, such as cycle length or cycle regularity, change. Although a particular ATP therapy initially may be unsuccessful in terminating the AT, it may prove successful when the cycle length or regularity of the atrial rhythm changes. As the rhythm slows down, the AT may be more responsive to ATP therapies that were previously unsuccessful. As a result, potentially efficacious ATP therapies can be reapplied to terminate AT episodes, and reduce the number of episodes that require more aggressive termination by painful, atrial shocks.
    • 本发明涉及心房起搏疗法用于治疗房性心动过速(AT)的用途。 当检测到AT发作时,可植入医疗装置应用ATP疗法。 如果AT发作持续存在,ATP疗法可能会在相同的AT发作过程中的较晚时间自动重新应用。 特别是,当诸如循环长度或循环规律性等情况时,先前使用的ATP疗法将被重新应用。 尽管特定的ATP疗法最初可能不能终止AT,但是当心房节律的周期长度或规律性发生变化时,可能会成功。 随着节奏减慢,AT可能对以前不成功的ATP疗法更有反应。 因此,可以重新应用潜在有效的ATP疗法来终止AT发作,并通过痛苦的心房休克减少需要更积极终止的发作次数。