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    • 46. 发明授权
    • Rate management during automatic capture verification
    • 自动捕获验证期间的费率管理
    • US06473649B1
    • 2002-10-29
    • US09470269
    • 1999-12-22
    • Mark GryzwaQingsheng Zhu
    • Mark GryzwaQingsheng Zhu
    • A61N137
    • A61N1/3712Y10S128/901
    • An implantable cardiac rhythm management device capable of automatically detecting intrinsic and evoked response of a patient's heart and suitable for use during capture verification. The device of the present invention may operate in an automatic capture verification mode, wherein an electrocardiogram signal of a patient's heart is received and used by the device to determine whether a stimulation pulse evokes a response by the patient's heart. The device suspends the automatic capture verification mode and/or adjust the detection threshold dependent upon detected and/or measured noise, a determined amplitude of evoked response, a determined modulation in the evoked response, or detected and/or measured artifact. Further, the sensing circuit of the rhythm management device of the present invention reduces afterpotentials that result due to delivery of the stimulation pulses.
    • 一种植入式心律管理装置,其能够自动检测患者心脏的内在和诱发反应并适于在捕获验证期间使用。 本发明的装置可以在自动捕获验证模式下操作,其中由装置接收并使用患者心脏的心电图信号,以确定刺激脉冲是否引起患者心脏的反应。 取决于检测到的和/或测量的噪声,所确定的诱发响应幅度,诱发响应中的确定调制,或检测到的和/或测量的伪影,该装置暂停自动捕获验证模式和/或调整检测阈值。 此外,本发明的节律管理装置的感测电路减少了由于刺激脉冲的传送而导致的后电位。
    • 47. 发明授权
    • Pseudo-fusion management during automatic capture verification
    • 自动捕获验证期间的伪融合管理
    • US06275731B1
    • 2001-08-14
    • US09474193
    • 1999-12-29
    • Qingsheng ZhuJungkuk KimArthur OliveJan-Pieter Heemels
    • Qingsheng ZhuJungkuk KimArthur OliveJan-Pieter Heemels
    • A61N1365
    • A61N1/3712
    • A method for reducing the affects of intrinsic detection latency in a cardiac rhythm management device, wherein said method is initiated immediately prior to delivering a stimulation pulse to the heart tissue. A coincidence of intrinsic and cardiac rhythm management initiated stimulus or the delivery of a stimulation pulse proximate the time of an intrinsic event due to intrinsic detection latency may results in delivery of unnecessary backup stimulus and/or imprecise determination of a pacing threshold. When stimulating the heart, the timing sequence for delivering a stimulation pulse typically depends upon the timing of a previous intrinsic or device initiated event. Further, the method of the present invention reduces the affects of intrinsic detection latency thereby facilitating improved detection of capture and determination of capture threshold for minimizing power consumption while assuring therapeutic efficacy.
    • 一种减轻心律管理装置中内在检测延迟的影响的方法,其中所述方法在将刺激脉冲传递到心脏组织之前立即开始。 由于内在的检测潜伏期,固有和心律管理发起的刺激或接近内在事件时间的刺激脉冲的传递的巧合可能导致递送不必要的备份刺激和/或不精确地确定起搏阈值。 当刺激心脏时,用于递送刺激脉冲的定时序列通常取决于先前的固有或设备启动事件的时序。 此外,本发明的方法减少了内在检测潜能的影响,从而有助于提高捕获捕获阈值的检测和捕获阈值的确定,以最大限度地降低功耗,同时确保治疗效果。
    • 50. 发明授权
    • Circuit-based devices and methods for pulse control of endocardial pacing in cardiac rhythm management
    • 基于电路的心脏心律管理脉搏控制心脏起搏的装置和方法
    • US08812105B2
    • 2014-08-19
    • US13282163
    • 2011-10-26
    • Qingsheng ZhuDaniel Felipe Ortega
    • Qingsheng ZhuDaniel Felipe Ortega
    • A61N1/362
    • A61N1/3627
    • Tools and methods are particularly suited for certain cardiac conditions involving use of a catheter for pacing of the right and left ventricles from a lead in the right ventricle, e.g., to facilitate mechanically and/or electrically synchronous contractions for resynchronization. Certain aspects involve pacing and/or mapping by generating pulses for delivery to a cardiac site useful for improving heart function as measured, e.g., by QRS width, fractionation, late LV activation timing, mechanical synchronicity of free wall and septal wall, effective throughput/pressure, or a combination thereof. In one embodiment, an implantable pulse generator includes circuitry for generating pacing profiles, with signals of opposite polarities, specifically selected for delivery on electrodes at a site near the septal wall of a right ventricle of the heart.
    • 工具和方法特别适合于某些心脏状况,包括使用导管将右心室和左心室从右心室中的引线起搏,例如为了促进用于再同步的机械和/或电同步收缩。 某些方面涉及起搏和/或作图,通过产生用于递送到心脏部位的脉搏,用于改善心脏功能,例如通过QRS宽度,分级,晚期LV激活时间,游离壁和间隔壁的机械同步性,有效吞吐量/ 压力或其组合。 在一个实施例中,可植入脉冲发生器包括用于产生具有相反极性的信号的起搏曲线的电路,其具体选择用于在靠近心脏右心室隔壁的位置处的电极上传送。