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133 条记录 (耗时 0.102 秒)

    DEVICES AND METHODS FOR SIZING VALVE APERTURES AND LUMINAL ORGANS
    101.
    发明申请
    DEVICES AND METHODS FOR SIZING VALVE APERTURES AND LUMINAL ORGANS 审中-公开
    尺寸阀门和灯具的装置和方法

    公开(公告)号：US20150366485A1

    公开(公告)日：2015-12-24

    申请号：US14742025

    申请日：2015-06-17

    申请人： H. Toby Markowitz ,  3DT Holdings, LLC

    发明人： Ghassan S. Kassab ,  H. Toby Markowitz

    IPC分类号： A61B5/107 ,  A61B5/00 ,  A61B5/053

    摘要： Devices and methods for sizing valve apertures and luminal organs. In at least one embodiment of a device for obtaining measurements within a luminal organ of the present disclosure, the device comprises an elongated body, and at least one sizing finger positioned at a distal end of the elongated body, the at least one sizing finger configured to move from a first position to a second position by way of adjustment of at least one movable device coupled thereto, wherein a dimensional measurement within the luminal organ can be determined based upon the first position and the second position.

    摘要翻译： 用于调整阀孔和腔内器官的尺寸的装置和方法。 在用于在本发明的管腔器官内获得测量的装置的至少一个实施例中，该装置包括细长主体和位于细长主体的远端处的至少一个施胶手指，所述至少一个施胶手指配置 通过至少一个与其连接的可移动装置的调节从第一位置移动到第二位置，其中可以基于第一位置和第二位置来确定腔内器官内的尺寸测量。

    Testing communication during implantation
    102.
    发明授权
    Testing communication during implantation 有权
    测量植入过程中的沟通

    公开(公告)号：US08983619B2

    公开(公告)日：2015-03-17

    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： A61N1/08 ,  A61B5/00 ,  A61N1/372 ,  A61B19/00 ,  A61N1/375

    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： 描述了一种系统和方法，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。 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/或取向以便通过身体成功地导电连通 。

    METHOD AND SYSTEM FOR DETECTING AND TREATING JUNCTIONAL RHYTHMS
    107.
    发明申请
    METHOD AND SYSTEM FOR DETECTING AND TREATING JUNCTIONAL RHYTHMS 有权
    检测和处理关节炎的方法和系统

    公开(公告)号：US20100179607A1

    公开(公告)日：2010-07-15

    申请号：US12686082

    申请日：2010-01-12

    申请人： H. Toby Markowitz ,  Matthew Harris ,  Trina Ann Brand

    发明人： H. Toby Markowitz ,  Matthew Harris ,  Trina Ann Brand

    IPC分类号： A61N1/08 ,  A61N1/368 ,  A61N1/39

    CPC分类号： A61N1/3627 ,  A61N1/3622 ,  A61N1/365 ,  A61N1/368 ,  A61N1/3682 ,  A61N1/3684

    摘要： A method and an apparatus for treating cardiac arrhythmias are provided. An interval between first and second consecutive beats of a heart, having first and second chamber types, is determined. The heart is paced at a first rate if the first beat is from the first chamber type and the second beat is from the second chamber type and the interval is less than a predetermined amount of time or if the first and second beats are both from the second chamber type. The heart is paced at a second rate if the first beat is from the first chamber type and the second beat is from the second chamber type and the interval is more than the predetermined amount of time.

    摘要翻译： 提供了一种治疗心律失常的方法和装置。 确定具有第一和第二室类型的心脏的第一和第二连续节拍之间的间隔。 如果第一节拍来自第一室型，并且第二节拍来自第二室型，并且间隔小于预定量的时间，或者如果第一和第二节拍都来自第一室，则心脏以第一速度进行起搏 第二室型。 如果第一搏动来自第一腔室类型，第二搏动来自第二腔室类型，并且间隔大于预定时间量，心脏以第二速度进行起搏。

    Method and apparatus for detecting cardiac capture
    108.
    发明授权
    Method and apparatus for detecting cardiac capture 失效
    用于检测心脏捕获的方法和装置

    公开(公告)号：US5902325A

    公开(公告)日：1999-05-11

    申请号：US126469

    申请日：1998-07-30

    申请人： Catherine R. Condie ,  Daniel J. Baxter ,  William J. Combs ,  Daniel J. Greeninger ,  Karen J. Kleckner ,  H. Toby Markowitz ,  John C. Stroebel ,  John D. Wahlstrand

    发明人： Catherine R. Condie ,  Daniel J. Baxter ,  William J. Combs ,  Daniel J. Greeninger ,  Karen J. Kleckner ,  H. Toby Markowitz ,  John C. Stroebel ,  John D. Wahlstrand

    IPC分类号： A61N1/365 ,  A61N1/37

    CPC分类号： A61N1/36521 ,  A61N1/3712 ,  A61N1/3714

    摘要： A method and apparatus for automatic determination of a pacemaker patient's pacing stimulation threshold. Circuitry is provided in a pacemaker for obtaining a signal reflecting cardiac impedance, which is known to reliably reflect certain aspects of cardiac function. Circuitry is also provided for monitoring the cardiac impedance waveform during a predetermined capture detect window following delivery of stimulating pulses. One or more values are derived which characterize the morphology of the impedance waveform during the capture detect window associated with each stimulation pulse delivered. These values are compared to predetermined control values in order to assess whether a stimulation pulse has achieved cardiac capture. The assessment of whether cardiac capture has been achieved is also based partly upon the conventional sensing of atrial and/or ventricular cardiac signals occurring during the capture detect window. In one embodiment of the invention, the control values against which impedance waveform characterization values are compared are obtained by delivering a series of stimulation pulses having sufficient energy to ensure that capture is achieved, and by monitoring the impedance waveform during delivery of these pulses.

    摘要翻译： 一种用于自动确定起搏器患者起搏刺激阈值的方法和装置。 在起搏器中提供电路以获得反映心脏阻抗的信号，这已知可靠地反映心脏功能的某些方面。 还提供电路用于在传送刺激脉冲之后的预定捕获检测窗口期间监测心脏阻抗波形。 导出一个或多个值，其表征在与递送的每个刺激脉冲相关联的捕获检测窗口期间阻抗波形的形态。 将这些值与预定的控制值进行比较，以便评估刺激脉冲是否已经实现心脏捕获。 是否已经实现心脏捕获的评估也部分地基于在捕获检测窗口期间发生的心房和/或心室心脏信号的常规感测。 在本发明的一个实施例中，通过递送具有足够能量的一系列刺激脉冲来确定阻抗波形表征值被比较的控制值，以确保实现捕获，并且通过在传送这些脉冲期间监视阻抗波形来获得。

    Dual chamber pacing with atrial and ventricular independence
    109.
    发明授权
    Dual chamber pacing with atrial and ventricular independence 失效
    双室起搏与心房和心室独立

    公开(公告)号：US5643326A

    公开(公告)日：1997-07-01

    申请号：US568440

    申请日：1995-12-07

    申请人： Henry L. Weiner ,  H. Toby Markowitz ,  Michael F. Hess

    发明人： Henry L. Weiner ,  H. Toby Markowitz ,  Michael F. Hess

    IPC分类号： A61N1/368

    CPC分类号： A61N1/368

    摘要： A rate-responsive cardiac pacemaker implements a novel pacing mode, identified as ADIR/VVIR, which is especially effective for patients with Sick Sinus Syndrome and only intermittent atrioventricular block. Within the same pacemaker circuitry, an AAIR pacemaker and a VVI pacemaker (with an escape rate below that of the AAIR pacemaker) are provided with atrial blanking following both atrial and ventricular events. Ventricular blanking after atrial pacing is minimized for better detection of R-waves following an atrial paced event.

    摘要翻译： 速率响应心脏起搏器实现了一种新颖的起搏模式，被认为是ADIR / VVIR，其对于患有窦性窦综合征的患者和仅间歇性房室传导阻滞特别有效。 在相同的起搏器电路中，AAIR起搏器和VVI起搏器（逃逸率低于AAIR起搏器）在心房和心室事件之后都提供心房消隐。 心房起搏后的心室消隐最小化，以便更好地检测心房起搏事件后的R波。

    Fault-tolerant elective replacement indication for implantable medical device
    110.
    发明授权
    Fault-tolerant elective replacement indication for implantable medical device 失效
    用于可植入医疗器械的容错选择性替代指示

    公开(公告)号：US5402070A

    公开(公告)日：1995-03-28

    申请号：US275863

    申请日：1994-07-15

    申请人： Michael B. Shelton ,  Ross O. Starkson ,  Craig L. Schmidt ,  H. Toby Markowitz

    发明人： Michael B. Shelton ,  Ross O. Starkson ,  Craig L. Schmidt ,  H. Toby Markowitz

    IPC分类号： A61N1/37 ,  A61N1/378 ,  G01R31/36

    CPC分类号： G01R31/3662 ,  A61N1/3708 ,  A61N1/378

    摘要： A pacemaker having a fault-tolerant elective replacement indicator (ERI) triggering scheme in which transient excursions of parameters used as criteria for triggering ERI are rejected as triggering events. Periodic assessments of certain indicia of battery depletion are made, and subjected to a long-term low-pass filtering operation in order to reduce the effects of transient excursions of the indicia which result from non-ERI conditions. Over a long period of time (e.g., a day) predetermined threshold values of the indicia of interest must be exceeded a predetermined number of times in order for the device to issue an ERI. In one disclosed embodiment of the invention, the battery's loaded terminal voltage and internal impedance are used as indicators of the battery's depletion level. Periodically, these values are measured and converted to digital values. The digital values are subjected to a low-pass filtering operation to prevent temporary or transient excursions of the impedance and voltage curves from causing ERI to be triggered. In another disclosed embodiment of the invention, a long term fading average of periodically measured values is maintained. When the measured values are found to fulfill the ERI criteria, assessment of the parameters of interest is performed at an increased rate. While assessments are performed at the increased rate, the continuously updated fading average value must fulfill the ERI triggering criteria at least a predetermined number of times before ERI is triggered. If the fading average fails to fulfill the ERI triggering criteria the required number of times, assessments are resumed at the first, slower periodic rate.

    摘要翻译： 具有容错选择性替换指示符（ERI）触发方案的起搏器，其中用作触发ERI的标准的参数的瞬时偏移作为触发事件被拒绝。 进行电池耗尽的某些标记的定期评估，并进行长期低通滤波操作，以减少由非ERI条件引起的标记的瞬时偏移的影响。 在一段长时间（例如，一天）中，为了使设备发布ERI，必须超过预定次数的预定阈值。 在本发明的一个公开的实施例中，电池的负载端子电压和内部阻抗被用作电池耗尽水平的指标。 定期测量这些值并将其转换为数字值。 对数字值进行低通滤波操作，以防止阻抗和电压曲线的暂时或瞬时偏移导致ERI被触发。 在本发明的另一个公开实施例中，维持周期性测量值的长期衰落平均值。 当发现测量值达到ERI标准时，以增加的速率进行感兴趣参数的评估。 虽然以增加的速率进行评估，但连续更新的衰落平均值必须在触发ERI之前至少达到预定次数的ERI触发标准。 如果衰落平均值不符合所需次数的ERI触发标准，则以第一个较慢的周期速率恢复评估。