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133 条记录 (耗时 0.072 秒)

    Atrial refractory control for R-wave rejection in pacemakers
    71.
    发明授权
    Atrial refractory control for R-wave rejection in pacemakers 失效
    心房起搏器R波消除的心房难治性控制

    公开(公告)号：US4343311A

    公开(公告)日：1982-08-10

    申请号：US145052

    申请日：1980-04-30

    申请人： H. Toby Markowitz

    发明人： H. Toby Markowitz

    IPC分类号： A61N1/368 ,  A61N1/362 ,  A61N1/365 ,  A61N1/36

    CPC分类号： A61N1/3622

    摘要： An artificial heart pacemaker and control circuit having an atrial synchronous pacing mode includes an output pulse generator for delivering stimulating pulses to the ventricle of the heart, and atrial and ventricular sensing amplifiers for detecting, respectively, atrial and ventricular contractions. The atrial sense amplifier starts an A-V delay timer which provides a delayed triggering pulse to the pulse generator to maintain A-V synchrony. Circuitry is provided for blanking or turning off the atrial sensing amplifier during the time that the ventricular sensing amplifier is refractory, and preferably for a short time interval thereafter, to prevent delivery of an output pulse in response to a premature ventricular contraction erroneously sensed as an atrial contraction.

    摘要翻译： 具有心房同步起搏模式的人造心脏起搏器和控制电路包括用于将刺激脉冲输送到心脏心室的输出脉冲发生器，以及分别用于检测心房和心室收缩的心房和心室感测放大器。 心律感知放大器启动A-V延迟定时器，为脉冲发生器提供延迟的触发脉冲以保持A-V同步。 提供电路用于在心室感测放大器难治的时间期间消隐或关闭心房感测放大器，并且优选地在此之后的短时间间隔内，以防止输出脉冲响应于错误地感测为过早的心室收缩 心房收缩。

    TESTING COMMUNICATION DURING IMPLANTATION
    76.
    发明申请
    TESTING COMMUNICATION DURING IMPLANTATION 有权
    植入过程中的测试通讯

    公开(公告)号：US20110160557A1

    公开(公告)日：2011-06-30

    申请号：US12732403

    申请日：2010-03-26

    申请人： Can Cinbis ,  H. Toby Markowitz

    发明人： Can Cinbis ,  H. Toby Markowitz

    IPC分类号： A61B5/04

    CPC分类号： A61B5/0028 ,  A61B5/0031 ,  A61B2034/2053 ,  A61B2560/0271 ,  A61N1/37205 ,  A61N1/37217 ,  A61N1/37241 ,  A61N1/3756

    摘要： A system and method are described for testing communication through a patient during implantation using telemetry coupling electrodes on a delivery catheter. In one example, at least two telemetry coupling electrodes may be placed on or within a delivery catheter to test conductive communication with external body electrodes during implantation. In some instances, the telemetry coupling electrodes of the delivery catheter may approximate the spacing of telemetry electrodes on an IMD. In this manner, testing conductively coupled communication with telemetry coupling electrodes of the catheter may be used to mimic the telemetry electrodes on the IMD and determine a target position and/or orientation of an electrode or electrodes of the IMD for successful conductive communication through the body.

    摘要翻译： 描述了一种用于在植入期间通过患者使用传送导管上的遥测耦合电极来测试通信的系统和方法。 在一个示例中，至少两个遥测耦合电极可以放置在输送导管上或内部，以在植入期间测试与外部身体电极的导电连通。 在一些情况下，输送导管的遥测耦合电极可以接近IMD上遥测电极的间距。 以这种方式，测试与导管的遥测耦合电极的导电耦合通信可以用于模拟IMD上的遥测电极，并且确定IMD的电极或电极的目标位置和/或取向以通过身体成功地导电连通 。

    Method and apparatus for detecting respiratory disturbances
    78.
    发明授权
    Method and apparatus for detecting respiratory disturbances 有权
    用于检测呼吸障碍的方法和装置

    公开(公告)号：US07524292B2

    公开(公告)日：2009-04-28

    申请号：US11565092

    申请日：2006-11-30

    申请人： Yong K. Cho ,  Steven L. Ning ,  Luc R. Mongeon ,  Scott W. Davie ,  Todd J. Sheldon ,  Mark K. Erickson ,  H. Toby Markowitz

    发明人： Yong K. Cho ,  Steven L. Ning ,  Luc R. Mongeon ,  Scott W. Davie ,  Todd J. Sheldon ,  Mark K. Erickson ,  H. Toby Markowitz

    IPC分类号： A61B5/08 ,  A61B5/02 ,  A61B5/00 ,  A61B5/103 ,  A61B5/05

    CPC分类号： A61B5/0809 ,  A61B5/0205 ,  A61B5/0215 ,  A61B5/0402 ,  A61B5/1459 ,  A61B5/4818 ,  G06F19/00

    摘要： A system and method for monitoring respiration including sensing a signal that varies with respiration, deriving a respiration parameter, applying criteria for detecting a respiration disturbance and determining one or more respiratory disturbance metrics. The system preferably includes an implantable sensor with an associated implantable medical device such that chronic respiration monitoring is possible. The implantable medical device may execute methods for detecting and measuring respiratory disturbances or may store data to be transferred to an external device for detecting and measuring respiratory disturbances. Respiratory disturbance detection may trigger a responsive action such as physiological data storage, a change in therapy delivery, or a clinician warning. Assessment of cardiac function may be made based on metrics of respiratory disturbances or a measure of circulatory delay time following detection of a respiratory disturbance.

    摘要翻译： 一种用于监测呼吸的系统和方法，包括感测随呼吸变化的信号，导出呼吸参数，应用用于检测呼吸障碍的标准和确定一个或多个呼吸障碍度量。 该系统优选地包括具有相关联的可植入医疗装置的可植入传感器，使得可以进行慢性呼吸监测。 可植入医疗装置可以执行用于检测和测量呼吸障碍的方法，或者可以将要传送到外部设备的数据存储以检测和测量呼吸障碍。 呼吸道干扰检测可能会触发响应动作，如生理数据存储，治疗传递的变化或临床医生的警告。 心脏功能的评估可以基于呼吸紊乱的度量或检测到呼吸障碍之后的循环延迟时间的量度进行。

    Regularization of ventricular rate during atrial tachyarrhythmia
    80.
    发明授权
    Regularization of ventricular rate during atrial tachyarrhythmia 有权
    房性心律失常期心室率正常化

    公开(公告)号：US06434424B1

    公开(公告)日：2002-08-13

    申请号：US09470120

    申请日：1999-12-22

    申请人： David A. Igel ,  H. Toby Markowitz ,  Robert A. Betzold ,  Karen J. Kleckner ,  Jeremy A. Schroetter

    发明人： David A. Igel ,  H. Toby Markowitz ,  Robert A. Betzold ,  Karen J. Kleckner ,  Jeremy A. Schroetter

    IPC分类号： A61N1362

    CPC分类号： A61N1/3622

    摘要： A pacing system provided with a mode switching feature and ventricular rate regularization (VRR) function adapted to stabilize or regularize ventricular heart rate during chronic or paroxysmal atrial tachyarrhythmia. In a preferred embodiment, the pacing system nominally operates in an atrial synchronized pacing mode such as DDD or DDDR pacing mode. In response to detection of atrial rhythm characteristics consistent with an atrial tachyarrhythmia, e.g., atrial fibrillation, a mode switch into a non-atrial synchronized, ventricular rate regularization pacing mode, e.g. DDIR or VDIR pacing mode, is made. If the VRR function is programmed on, the ventricular pacing rate based upon a rate responsive sensor derived ventricular pacing rate modulated on a beat by beat basis by preceding intrinsic or paced ventricular events, the stability of the intrinsic ventricular heart rate, and any atrial pace events to regularize the ventricular pacing rate. The pacing system may also be permanently programmed to the DDIR pacing mode with the VRR feature functioning continuously. The pacing system may also be permanently programmed to the VVIR pacing mode with VRR function activated, but without consideration of atrial pace events.

    摘要翻译： 具有模式切换特征和心室率正常化（VRR）功能的起搏系统适于在慢性或阵发性房性快速性心律失常期间稳定或规范心室心率。 在优选实施例中，起搏系统名义地以心房同步起搏模式操作，例如DDD或DDDR起搏模式。 响应于检测与房性快速性心律失常（例如心房颤动）一致的心房节律特征，模式切换到非心房同步的心室速率正则化起搏模式，例如心房颤动。 DDIR或VDIR起搏模式。 如果VRR功能被编程，则基于速率响应传感器导出的心室起搏速率的心室起搏速率通过前进的内在或节奏心室事件，内部心室心率的稳定性和任何心房起搏 事件来规范心室起搏率。 起搏系统也可以永久编程到DDIR起搏模式，VRR功能连续工作。 起搏系统也可以被永久编程到VVIR起搏模式，VRR功能被激活，但不考虑心房速度事件。