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    • 40. 发明授权
    • Fusion pacing enhancements
    • 融合起搏增强功能
    • US08046065B2
    • 2011-10-25
    • US11671304
    • 2007-02-05
    • John E. BurnesKaren J. KlecknerThomas J. Mullen
    • John E. BurnesKaren J. KlecknerThomas J. Mullen
    • A61N1/365
    • A61N1/3627A61N1/3682A61N1/3684
    • The disclosure provides methods and apparatus of left ventricular pacing including automated adjustment of a atrio-ventricular (AV) pacing delay interval and intrinsic AV nodal conduction testing. It includes—upon expiration or reset of a programmable AV Evaluation Interval (AVEI)—performing the following: temporarily increasing a paced AV interval and a sensed AV interval and testing for adequate AV conduction and measuring an intrinsic atrio-ventricular (PR) interval for a right ventricular (RV) chamber. Thus, in the event that the AV conduction test reveals a physiologically acceptable intrinsic PR interval then storing the physiologically acceptable PR interval in a memory structure (e.g., a median P-R from one or more cardiac cycles). In the event that the AV conduction test reveals an AV conduction block condition or if unacceptably long PR intervals are revealed then a pacing mode-switch to a bi-ventricular (Bi-V) pacing mode occurs and the magnitude of the AVEI is increased.
    • 本公开提供了左心室起搏的方法和装置,包括自动调节心房(AV)起搏延迟间隔和内部AV节点传导测试。 它包括 - 可编程AV评估间隔(AVEI)的到期或复位 - 执行以下操作:临时增加节奏的AV间隔和感测到的AV间隔,并测试足够的AV传导并测量内在的心房(PR)间隔 右心室(RV)室。 因此,在AV传导测试揭示生理上可接受的固有PR间隔的情况下,然后将生理上可接受的PR间期存储在存储器结构中(例如,来自一个或多个心动周期的中值P-R)。 在AV传导测试显示AV传导阻滞状态或者如果不能接受的长PR间隔被揭示的情况下,则起搏模式切换到双心室(Bi-V)起搏模式并且增加AVEI的幅度。