中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

229 records (took 0.025 seconds)

    Closed loop impedance-based cardiac resynchronization therapy systems, devices, and methods
    44.
    发明授权
    Closed loop impedance-based cardiac resynchronization therapy systems, devices, and methods 有权
    基于闭环阻抗的心脏再同步治疗系统，装置和方法

    公开(公告)号：US08295927B2

    公开(公告)日：2012-10-23

    申请号：US12254631

    申请日：2008-10-20

    Applicant: Jiang Ding ,  Yinghong Yu ,  Julio C. Spinelli ,  Jeffrey E. Stahmann

    Inventor： Jiang Ding ,  Yinghong Yu ,  Julio C. Spinelli ,  Jeffrey E. Stahmann

    IPC: A61N1/365

    CPC classification number: A61N1/3627 ,  A61B5/053 ,  A61N1/36521 ,  A61N1/3682 ,  A61N1/3684

    Abstract: This document discusses, among other things, systems, devices, and methods measure an impedance and, in response, adjust an atrioventricular (AV) delay or other cardiac resynchronization therapy (CRT) parameter that synchronizes left and right ventricular contractions. A first example uses parameterizes a first ventricular volume against a second ventricular volume during a cardiac cycle, using a loop area to create a synchronization fraction (SF). The CRT parameter is adjusted in closed-loop fashion to increase the SF. A second example measures a septal-freewall phase difference (PD), and adjusts a CRT parameter to decrease the PD. A third example measures a peak-to-peak volume or maximum rate of change in ventricular volume, and adjusts a CRT parameter to increase the peak-to-peak volume or maximum rate of change in the ventricular volume.

    Abstract translation: 本文件还讨论了系统，设备和方法测量阻抗，并作为响应调整房室（AV）延迟或同步左心室收缩和右心室收缩的其他心脏再同步治疗（CRT）参数。 第一个例子是使用循环区域创建同步分数（SF），在心动周期中使用第一心室容积对第二心室容积进行参数化。 CRT参数以闭环方式调整以增加SF。 第二个例子是测量隔层相位差（PD），并调整CRT参数以减少PD。 第三个例子测量峰 - 峰体积或最大心室容积变化率，并调整CRT参数以增加心室容积的峰 - 峰体积或最大变化率。

    Method and apparatus for determining the coronary sinus vein branch accessed by a coronary sinus lead
    47.
    发明授权
    Method and apparatus for determining the coronary sinus vein branch accessed by a coronary sinus lead 有权
    用于确定冠状静脉窦导管接近的冠状静脉窦静脉分支的方法和装置

    公开(公告)号：US08214026B2

    公开(公告)日：2012-07-03

    申请号：US12976397

    申请日：2010-12-22

    Applicant: Yinghong Yu ,  Jiang Ding ,  Jeng Mah ,  Julio C. Spinelli

    Inventor： Yinghong Yu ,  Jiang Ding ,  Jeng Mah ,  Julio C. Spinelli

    IPC: A61B5/0452

    CPC classification number: A61B5/0452 ,  A61B5/0456 ,  A61B34/20 ,  A61B2034/2072 ,  A61N1/3627 ,  A61N1/3682

    Abstract: Systems and methods for determining the coronary sinus vein branch location of a left ventricle electrode are disclosed. The systems and methods involve detecting the occurrence of electrical events within the patient's heart including sensing one or more of the electrical events with the electrode and then analyzing the electrical events to determine the electrode's position. The determination of electrode position may be used to automatically adjust operating parameters of a VRT device. Furthermore, the determination of electrode position may be made in real-time during installation of the electrode and a visual indication of the electrode position may be provided on a display screen.

    Abstract translation: 公开了用于确定左心室电极的冠状静脉窦静脉分支位置的系统和方法。 系统和方法涉及检测患者心脏内的电事件的发生，包括用电极感测一个或多个电事件，然后分析电气事件以确定电极的位置。 电极位置的确定可用于自动调整VRT器件的工作参数。 此外，可以在电极的安装期间实时地确定电极位置，并且可以在显示屏上提供电极位置的视觉指示。

    MONOLITHIC CAPILLARY PARALLEL X-RAY LENS
    48.
    发明申请
    MONOLITHIC CAPILLARY PARALLEL X-RAY LENS 有权
    单声道毛毛平行X射线镜头

    公开(公告)号：US20120163552A1

    公开(公告)日：2012-06-28

    申请号：US13338477

    申请日：2011-12-28

    Applicant: Wei jiang Ding

    Inventor： Wei jiang Ding

    IPC: G21K1/02 ,  B23P11/00

    CPC classification number: G21K1/067 ,  A61B6/06 ,  Y10T29/49826

    Abstract: An X-ray lens is provided. The lens is located behind an X-ray tube and a collimator, the collimator located behind the X-ray tube, such that X-rays emitted from the X-ray tube pass through the collimator and then pass through the X-ray lens, wherein the X-ray lens is a monolithic capillary parallel lens configured to transform a cone emanant beam penetrating the collimator into parallel X-rays.

    Abstract translation: 提供X射线透镜。 透镜位于X射线管和准直器之后，准直器位于X射线管后面，使得从X射线管发射的X射线穿过准直仪，然后穿过X射线透镜， 其中所述X射线透镜是被构造成将穿透所述准直仪的锥形辐射束变换成平行X射线的单片毛细管平行透镜。

    Cardiac rhythm management system selecting between multiple same-chamber electrodes for delivering cardiac therapy
    49.
    发明授权
    Cardiac rhythm management system selecting between multiple same-chamber electrodes for delivering cardiac therapy 有权
    心脏节律管理系统选择多个相同室电极之间进行心脏治疗

    公开(公告)号：US08121686B2

    公开(公告)日：2012-02-21

    申请号：US13026917

    申请日：2011-02-14

    Applicant: Jiang Ding ,  Julio C. Spinelli ,  Andrew P. Kramer

    Inventor： Jiang Ding ,  Julio C. Spinelli ,  Andrew P. Kramer

    IPC: A61N1/362

    CPC classification number: A61N1/3684 ,  A61N1/3627 ,  A61N1/36514 ,  A61N1/368

    Abstract: A cardiac rhythm management system selects one of multiple electrodes associated with a particular heart chamber based on a relative timing between detection of a depolarization fiducial point at the multiple electrodes, or based on a delay between detection of a depolarization fiducial point at the multiple electrodes and detection of a reference depolarization fiducial point at another electrode associated with the same or a different heart chamber. Subsequent contraction-evoking stimulation therapy is delivered from the selected electrode.

    Abstract translation: 心脏节律管理系统基于在多个电极处的去极化基准点的检测之间的相对定时或基于在多个电极之间的去极化基准点的检测之间的延迟来选择与特定心室相关联的多个电极中的一个，以及 在与相同或不同的心室相关联的另一电极处检测参考去极化基准点。 随后的收缩诱导刺激疗法从所选择的电极递送。

    Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes
    50.
    发明授权
    Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes 失效
    使用从多个植入电极感测的心电图进行自动捕获验证

    公开(公告)号：US08116871B2

    公开(公告)日：2012-02-14

    申请号：US12409348

    申请日：2009-03-23

    Applicant: Yi Zhang ,  Jiang Ding ,  Aaron McCabe ,  Scott A. Meyer

    Inventor： Yi Zhang ,  Jiang Ding ,  Aaron McCabe ,  Scott A. Meyer

    IPC: A61N1/08 ,  A61N1/37 ,  A61B5/0452

    CPC classification number: A61N1/3712 ,  A61N1/365

    Abstract: Cardiac monitoring and/or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed for automatic capture verification using cardiac activation sequence information. Devices and methods sense composite cardiac signals using implantable electrodes. A source separation is performed using the composite signals. One or more signal vectors are produced that are associated with all or a portion of one or more cardiac activation sequences based on the source separation. A cardiac response to the pacing pulses is classified using characteristics associated with cardiac signal vectors and the signals associated with the vectors. Further embodiments may involve classifying the cardiac response as capture or non-capture, fusion or intrinsic cardiac activity. The characteristics may include an angle or an angle change of the cardiac signal vectors, such as a predetermined range of angles of the one or more cardiac signal vectors.

    Abstract translation: 提供一种或多种监测，诊断，除颤和起搏的心脏监测和/或刺激方法和系统。 心脏信号分离被用于使用心脏激活序列信息的自动捕获验证。 装置和方法使用可植入电极感测复合心脏信号。 使用复合信号进行源分离。 产生与基于源分离的一个或多个心脏激活序列的全部或一部分相关联的一个或多个信号载体。 使用与心脏信号矢量相关联的特征和与矢量相关联的信号来分类对起搏脉冲的心脏反应。 进一步的实施方案可以包括将心脏反应分类为捕获或非捕获，融合或内在心脏活动。 特征可以包括心脏信号矢量的角度或角度变化，例如一个或多个心脏信号矢量的预定角度范围。

Patent Agency Ranking