Method and apparatus for determining atrial lead dislocation
    1.
    发明授权
    Method and apparatus for determining atrial lead dislocation 有权
    用于确定心房铅脱位的方法和装置

    公开(公告)号:US06195584B1

    公开(公告)日:2001-02-27

    申请号:US09303279

    申请日:1999-04-30

    IPC分类号: A61N137

    CPC分类号: A61N1/371 A61N2001/083

    摘要: A method and apparatus for determining the occurrence of a mis-location of an atrial electrode in a cardiac stimulation device having an atrial pulse generator coupled with the atrial electrode and a ventricular sense amplifier coupled to a ventricular electrode. The device paces the atrium in a first pacing mode employing atrial pacing pulses at a first energy level and in a test mode employs higher energy atrial pacing pulses. In the test mode the device measures PR intervals between atrial pacing pulses following sensed ventricular depolarizations and determines that the atrial electrode is mis-located responsive to occurrence of a threshold number of short PR intervals or that the atrial electrode is appropriately located responsive to occurrence of a threshold number of long PR intervals. Operation of the device in the test mode may be pre-conditioned on an absence of atrial tachyarrhythmia.

    摘要翻译: 一种用于确定在具有与心房电极耦合的心房脉冲发生器和耦合到心室电极的心室感应放大器的心脏刺激装置中心房电极错位的发生的方法和装置。 该装置以第一起搏模式采用心房起搏脉冲在第一能级进行起搏,并且在测试模式中采用更高能量的心房起搏脉冲。 在测试模式中,该装置测量感测到的心室去极化之后的心房起搏脉冲之间的PR间隔,并且确定心房电极响应于出现阈值数量的短PR间期而错位,或者心房电极适当地位于响应于 长PR间隔的阈值数。 在测试模式下的装置的操作可以在没有心房快速性心律失常的情况下进行预处理。

    Apparatus for treating atrial tachyarrhythmias with synchronized shocks
    3.
    发明授权
    Apparatus for treating atrial tachyarrhythmias with synchronized shocks 失效
    用同步冲击治疗房性快速性心律失常的装置

    公开(公告)号:US6091988A

    公开(公告)日:2000-07-18

    申请号:US70690

    申请日:1998-04-30

    IPC分类号: A61N1/362 A61N1/39

    摘要: 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.

    摘要翻译: 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。

    Cardioversion energy reduction system
    4.
    发明授权
    Cardioversion energy reduction system 失效
    心律转换能量减少系统

    公开(公告)号:US5836976A

    公开(公告)日:1998-11-17

    申请号:US846747

    申请日:1997-04-30

    IPC分类号: A61N1/39

    摘要: 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.

    摘要翻译: 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。

    Method and apparatus for prevention of atrial tachyarrhythmias
    6.
    发明授权
    Method and apparatus for prevention of atrial tachyarrhythmias 有权
    用于预防房性快速性心律失常的方法和装置

    公开(公告)号:US06185459B2

    公开(公告)日:2001-02-06

    申请号:US09373699

    申请日:1999-08-13

    IPC分类号: A61N1362

    摘要: A cardiac pacemaker and a method of its use. The pacemaker paces a patient's heart in a tachyarrhythmia prevention pacing mode for an extended time period, defines a metric of success of the tachyarrhythmia prevention pacing mode, monitors the metric over the extended time period and, responsive to the monitored metric, adjusts the tachyarrhythmia prevention pacing mode. Adjustment of the tachyarrhythmia prevention pacing mode may take the form of pacing the patient's heart with a different set of electrodes, pacing the patient's heart with a different tachyarrhythmia prevention pacing mode and/or terminating operation of the tachyarrhythmia prevention pacing mode.

    摘要翻译: 心脏起搏器及其使用方法。 心脏起搏器在长时间的快速性心律失常预防起搏模式下对患者的心脏起搏,定义了快速心律失常预防起搏模式成功的指标,在​​延长的时间段内监测指标,并根据监测的指标调整心律失常预防 起搏模式 快速心律失常预防起搏模式的调整可以采取以不同的电极组起搏患者心脏的形式,使患者的心脏具有不同的快速性心律失常预防起搏模式和/或终止快速性心律失常预防起搏模式的操作。

    Method and apparatus for control of A-V interval
    7.
    发明授权
    Method and apparatus for control of A-V interval 失效
    用于控制A-V间隔的方法和装置

    公开(公告)号:US5411531A

    公开(公告)日:1995-05-02

    申请号:US125579

    申请日:1993-09-23

    IPC分类号: A61N1/362 A61N1/368

    CPC分类号: A61N1/3622 A61N1/3627

    摘要: A device for controlling the duration of A-V conduction intervals in a patient's heart. Stimulation of the AV nodal fat pad is employed to maintain the durations of the A-V conduction intervals within a desired interval range, which may vary as a function of sensed heart rate or other physiologic parameter. AV nodal fat pad stimulation may also be triggered in response to defined heart rhythms such as a rapid rate or the occurrence of PVC's, to terminate or prevent induction of arrhythmias.

    摘要翻译: 用于控制患者心脏中A-V导通间隔的持续时间的装置。 使用AV节点脂肪垫的刺激来将A-V传导间期的持续时间保持在期望的间隔范围内,其可以根据感测的心率或其他生理参数而变化。 AV节点脂肪垫刺激也可以响应定义的心律(例如快速率或PVC的发生)触发,以终止或阻止心律不齐的诱导。

    Method and apparatus for treatment of atrial fibrillation
    8.
    发明授权
    Method and apparatus for treatment of atrial fibrillation 失效
    用于治疗房颤的方法和装置

    公开(公告)号:US5620468A

    公开(公告)日:1997-04-15

    申请号:US627959

    申请日:1996-04-02

    IPC分类号: A61N1/38 A61N1/39

    摘要: A method and apparatus for treating fibrillation, particularly atrial fibrillation. In response to detection of fibrillation, a series of low energy pulse bursts is delivered, separated by defined inter-burst intervals, and including bursts unsynchronized to heart depolarizations. Detection of termination of fibrillation during inter-burst intervals results in cancellation of further pulse bursts to prevent reinduction of fibrillation.

    摘要翻译: 一种用于治疗原纤维性颤动的方法和装置,特别是心房颤动。 响应于原纤维化的检测,一系列低能量脉冲串被传送,通过限定的突发间隔隔开,并且包括与心脏去极化不同步的突发。 在突发间隔期间检测到颤动的终止导致进一步的脉冲脉冲的消除,以防止纤维性颤动的再诱导。

    Method and apparatus for control of A-V interval
    9.
    发明授权
    Method and apparatus for control of A-V interval 失效
    用于控制A-V间隔的方法和装置

    公开(公告)号:US5507784A

    公开(公告)日:1996-04-16

    申请号:US419068

    申请日:1995-04-06

    IPC分类号: A61N1/362

    CPC分类号: A61N1/3622 A61N1/3627

    摘要: A device for controlling the duration of A-V conduction intervals ia a patient's heart. Stimulation of the AV nodal fat pad is employed to maintain the durations of the A-V conduction intervals within a desired interval range, which may vary as a function of sensed heart rate or other physiologic parameter. AV nodal fat pad stimulation may also be triggered in response to defined heart rhythms such as a rapid rate or the occurrence of PVC's, to terminate or prevent induction of arrhythmias.

    摘要翻译: 用于控制患者心脏的A-V传导间隔的持续时间的装置。 使用AV节点脂肪垫的刺激来将A-V传导间期的持续时间保持在期望的间隔范围内,其可以根据感测的心率或其他生理参数而变化。 AV节点脂肪垫刺激也可以响应定义的心律(例如快速率或PVC的发生)触发,以终止或阻止心律不齐的诱导。