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    • 5. 发明申请
    • ATRIAL CAPTURE MANAGEMENT DURING ATRIAL AND VENTRICULAR PACING
    • ATRIAL和VENTRICULAR PACING期间的ATRIAL捕获管理
    • WO2005009529A2
    • 2005-02-03
    • PCT/US2004/023556
    • 2004-07-22
    • MEDTRONIC, INC.SHELDON, Todd, J.RUETER, John, C.
    • SHELDON, Todd, J.RUETER, John, C.
    • A61N1/00
    • A61N1/3712A61N1/362A61N1/3714
    • In an atrial pacing system, the A-PACE pulse energy, defined by the pulse width and pulse amplitude, sufficient to reliably capture the atrium without being wasteful of battery energy is periodically determined in accordance with atrial capture management (ACM) algorithms. The ACM algorithms allow a slow intrinsic atrial heart rate that is suppressed by delivered A-PACE pulses resulting in A-CAPTURE and that occurs when delivered test A-PACE pulses result in ALOC to be detected. ALOC is declared if an A-EVENT of the slow intrinsic atrial heart rate is detected either during an ACM test window timed from the last delivered test A-PACE pulse or during delivery of a sequence of test A-PACE pulses delivered within or defining the ACM test window correlated to the slow intrinsic atrial heart rate.
    • 在心房起搏系统中,根据心房捕获管理(ACM)算法周期性地确定由脉冲宽度和脉冲幅度定义的足够可靠地捕获心房而不浪费电池能量的A-PACE脉冲能量。 ACM算法允许由传递的A-PACE脉冲抑制的内在心房心率慢,导致A-CAPTURE,并且当递送的测试A-PACE脉冲导致检测到ALOC时发生。 如果在从最后传送的测试A-PACE脉冲定时的ACM测试窗口期间或在递送在其中传送或定义的测试A-PACE脉冲序列期间检测到慢内在心房心率的A-EVENT,则ALOC被声明 ACM测试窗口与内在心房心率缓慢相关。
    • 10. 发明申请
    • LV THRESHOLD MEASUREMENT AND CAPTURE MANAGEMENT
    • LV阈值测量和捕获管理
    • WO2007073514A1
    • 2007-06-28
    • PCT/US2006/060813
    • 2006-11-13
    • MEDTRONIC, INC.PAIRKH, Purvee, P.STROEBEL, John, C.SHELDON, Todd, J.KLECKNER, Karen, J.
    • PAIRKH, Purvee, P.STROEBEL, John, C.SHELDON, Todd, J.KLECKNER, Karen, J.
    • A61N1/362A61N1/37
    • A61N1/3627A61N1/3684A61N1/371
    • The invention provides methods and apparatus for determining in a non-tracking pacing mode (e.g., DDI/R, VVI/R) whether a ventricular pacing stimulus is capturing a paced ventricle, including some or all of the following aspects. For example, increasing a ventricular pacing rate a nominal amount to an overdrive pacing rate higher than a most recent heart rate and evaluating a conduction interval from a first pacing ventricle to a second sensing ventricle and then continuing to monitor the underlying rate to ensure that a threshold testing pacing rate will not exceed a predetermined minimum interval and providing pacing stimulation to the first ventricle and sensing the second ventricle to determine whether the pacing stimulation to the first ventricle was one of sub-threshold and supra-threshold. The methods and apparatus are especially useful in conjunction with ensuring actual delivery of a ventricular pacing regime (e.g., cardiac resynchronization therapy or "CRT").
    • 本发明提供了用于在非跟踪起搏模式(例如,DDI / R,VVI / R)中确定心室起搏刺激是否捕获节奏心室的方法和装置,包括以下方面的一些或全部。 例如,将心室起搏速率增加到高于最近心率的超速起搏速率的标称值,并评估从第一起搏心室到第二感测心室的传导间隔,然后继续监测潜在速率,以确保 阈值测试起搏速率不会超过预定的最小间隔,并且向第一脑室提供起搏刺激并且感测第二脑室以确定对第一脑室的起搏刺激是否是亚阈值和超阈值之一。 所述方法和装置与确保心室起搏方案(例如,心脏再同步治疗或“CRT”)的实际递送相结合特别有用。