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96 条记录 (耗时 0.035 秒)

    Atrial and ventricular implantable cardioverter-defibrillator and lead system
    51.
    发明授权
    Atrial and ventricular implantable cardioverter-defibrillator and lead system 有权

    公开(公告)号：US6067471A

    公开(公告)日：2000-05-23

    申请号：US130087

    申请日：1998-08-07

    申请人： Jay A. Warren

    发明人： Jay A. Warren

    IPC分类号： A61N1/39

    CPC分类号： A61N1/3622 ,  A61N1/3918 ,  A61N1/3925 ,  A61N1/3956

    摘要： A cardiac rhythm management system, such as an implantable cardioverter-defibrillator (ICD), provides atrial anti-tachyarrhythmia therapy, such as a bipolar or unipolar electrical cardioversion countershock, or provides both atrial and ventricular anti-tachyarrhythmia therapy. The atrial and ventricular anti-tachyarrhythmia therapies have independent cardioversion-defibrillation energy levels and other parameters. The system provides an endocardial lead that is convenient to implant for providing the anti-tachyarrhythmia therapy. The endocardial lead includes a first supraventricular electrode disposed in the atrium and superior vena cava, and optionally includes a first ventricular electrode and ICD housing electrode.

    Discrimination of atrial and ventricular signals from a single cardiac lead
    52.
    发明授权
    Discrimination of atrial and ventricular signals from a single cardiac lead 失效

    公开(公告)号：US5776072A

    公开(公告)日：1998-07-07

    申请号：US579872

    申请日：1995-12-28

    申请人： William Hsu ,  Jay A. Warren ,  Gerrard M. Carlson

    发明人： William Hsu ,  Jay A. Warren ,  Gerrard M. Carlson

    IPC分类号： A61N1/362 ,  A61B5/046

    CPC分类号： A61N1/3622

    摘要： A method and system for discriminating atrial and ventricular signal components from a single heart lead, and for using this information for identifying an arrhythmia condition as being atrial or ventricular in origin. The invention is effective in identifying P waves occurring in complex signal which includes relatively stronger R waves or other ventricular artifacts which mask the P waves. The contribution of the R wave signal to the complex signal is obtained by filtering, time windowing and transfer function estimation, then the R wave estimate is subtracted from the combined signal to leave the P wave. The ratio of P waves to R waves, P--P and R--R intervals, and their ratios to one another and to fixed values can be estimated, and used in a comparison to discriminate between atrial and ventricular arrhythmia, to thereby enable appropriate treatment.

    Variable rate pacemaker having upper rate limit governor based on hemodynamic performance
    53.
    发明授权
    Variable rate pacemaker having upper rate limit governor based on hemodynamic performance 失效
    基于人体动力学性能的具有上限极限总督的可变速率控制器

    公开(公告)号：US5156147A

    公开(公告)日：1992-10-20

    申请号：US651318

    申请日：1991-02-05

    申请人： Jay A. Warren ,  Jay O. Millerhagen ,  Julio C. Spinelli

    发明人： Jay A. Warren ,  Jay O. Millerhagen ,  Julio C. Spinelli

    IPC分类号： A61N1/365

    CPC分类号： A61N1/36585

    摘要： A rate adaptive pacemaker of the type having a variable rate cardiac stimulating pulse generator and a sensor for monitoring some physiologic parameter whereby the pulse generator stimulating rate can be adjusted to meet physiologic demand is further provided with a hemodynamic sensor which is operative to provide an output signal representing the pumping performance of the heart in response to the pacing stimulation. The signal from the hemodynamic sensor is processed and then used in an algorithm to determine whether further rate increase should be permitted based upon whether the rate increase would be accompanied by a further increase in cardiac output, a plateau or a decrease in cardiac output. Hence, the adaptive rate pacemaker is provided with a real-time, hemodynamic maximum pacing rate instead of a preprogrammed, fixed, maximum rate.

    Adaptive waveform appraisal in an implantable cardiac system
    55.
    发明授权
    Adaptive waveform appraisal in an implantable cardiac system 有权
    可植入心脏系统中的自适应波形评估

    公开(公告)号：US08744555B2

    公开(公告)日：2014-06-03

    申请号：US12913647

    申请日：2010-10-27

    申请人： Venugopal Allavatam ,  Rick Sanghera ,  Jay A. Warren

    发明人： Venugopal Allavatam ,  Rick Sanghera ,  Jay A. Warren

    IPC分类号： A61B5/04 ,  A61B5/02

    CPC分类号： A61B5/04012 ,  A61N1/37 ,  A61N1/3706 ,  A61N1/3987

    摘要： Methods and implantable devices for cardiac signal analysis. The methods and devices make use of waveform appraisal techniques to distinguish event detections into categories for suspect events and waveform appraisal passing events. When adjustments are made to the data entering analysis for waveform appraisal, the waveform appraisal thresholds applied are modified as well. For example, when the data analysis window for waveform appraisal changes in length, a waveform appraisal threshold is modified. Other changes, including changes in sensing characteristics with which waveform appraisal operates may also result in changes to the waveform appraisal threshold including changes in gain, sensing vector, activation of other devices, implantee posture and other examples which are explained.

    摘要翻译： 用于心脏信号分析的方法和可植入装置。 方法和设备利用波形评估技术将事件检测区分为可疑事件和波形评估传递事件的类别。 当对输入波形评估分析的数据进行调整时，也会修改应用的波形评估阈值。 例如，当波形评估的数据分析窗口长度变化时，波形评估阈值被修改。 其他变化，包括波形评估操作的检测特性的变化也可能导致波形评估阈值的变化，包括增益，感测向量，其他设备的激活，植入者姿势以及其他所示示例的变化。

    Methods and devices for accurately classifying cardiac activity
    57.
    发明授权
    Methods and devices for accurately classifying cardiac activity 有权
    准确分类心脏活动的方法和装置

    公开(公告)号：US08626280B2

    公开(公告)日：2014-01-07

    申请号：US13436398

    申请日：2012-03-30

    申请人： Venugopal Allavatam ,  Surekha Palreddy ,  Rick Sanghera ,  Jay A. Warren

    发明人： Venugopal Allavatam ,  Surekha Palreddy ,  Rick Sanghera ,  Jay A. Warren

    IPC分类号： A61B5/0468

    CPC分类号： A61N1/3987 ,  A61B5/024 ,  A61B5/04014 ,  A61B5/0452 ,  A61B5/6847 ,  A61B5/726 ,  A61N1/3704 ,  A61N1/3956

    摘要： Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In illustrative examples, captured data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data. New methods for organizing the use of morphology and rate analysis in an overall architecture for rhythm classification and cardiac signal analysis are also discussed.

    摘要翻译： 植入心脏监测和治疗装置如植入式心律转复除颤器中的信号分析方法，系统和装置。 在说明性示例中，分析包括检测到的事件的捕获数据以识别心脏事件的可能过度检测。 在一些说明性示例中，当识别出过度检测时，可以修改数据以校正过度检测，以减少过度检测的影响或忽略过度检测的数据。 还讨论了在节律分类和心脏信号分析的整体架构中组织使用形态学和速率分析的新方法。

    Methods and Devices for Identifying Overdetection of Cardiac Signals
    60.
    发明申请
    Methods and Devices for Identifying Overdetection of Cardiac Signals 有权
    识别心脏信号过度检测的方法和设备

    公开(公告)号：US20120330370A1

    公开(公告)日：2012-12-27

    申请号：US13607256

    申请日：2012-09-07

    申请人： Jay A. Warren ,  Venugopal Allavatam ,  Rick Sanghera ,  Surekha Palreddy

    发明人： Jay A. Warren ,  Venugopal Allavatam ,  Rick Sanghera ,  Surekha Palreddy

    IPC分类号： A61N1/365

    CPC分类号： A61B5/0452 ,  A61B5/0424 ,  A61B5/726

    摘要： Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In illustrative examples, sensed data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data.

    摘要翻译： 植入心脏监测和治疗装置如植入式心律转复除颤器中的信号分析方法，系统和装置。 在说明性示例中，分析包括检测到的事件的感测数据以识别心脏事件的可能过度检测。 在一些说明性示例中，当识别出过度检测时，可以修改数据以校正过度检测，以减少过度检测的影响或忽略过度检测的数据。