中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

78 records (took 0.029 seconds)

    MULTIPLE ELECTRODE ELEMENT FOR MAPPING AND ABLATING
    71.
    发明申请
    MULTIPLE ELECTRODE ELEMENT FOR MAPPING AND ABLATING 审中-公开
    用于绘图和绘制的多个电极元件

    公开(公告)号：WO1995010225A1

    公开(公告)日：1995-04-20

    申请号：PCT/US1994011494

    申请日：1994-10-12

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  McGEE, David, L. ,  HOUSER, Russell, A. ,  SWANSON, David, K.

    IPC: A61B05/04

    CPC classification number: A61B5/6855 ,  A61B5/0422 ,  A61B5/6857 ,  A61B5/6858 ,  A61B18/1492 ,  A61B2017/00292 ,  A61B2017/003 ,  A61B2018/00107 ,  A61B2018/00148 ,  A61B2018/0016 ,  A61B2018/00357 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2018/00869 ,  A61B2018/126 ,  A61B2018/1435 ,  A61B2018/1861 ,  A61B2562/0209 ,  A61B2562/043 ,  A61M25/0041 ,  A61M2025/09141 ,  A61N1/06 ,  A61N1/403

    Abstract: Systems and methods sense electrical events in heart tissue to identify the location of an arrhythmogenic focus for ablation. The systems and methods establish a contact site between heart tissue and a curvilinear electrode array (e1-e4 or E1-E4). The systems and methods monitor signals representing electrical events sensed by the electrodes in the contact site. The signals are displayed as graphic information that represents the time sequence in which the electrodes sense a given electrical event. By moving the electrode array (e1-e4 or E1-E4) to one or more additional contact sites in the general direction of the electrode that first sensed the electrical event, the physician homes in on a contact site in which all electrodes on the array sense the given electrical event at generally the same time. This contact site contains the arrhythmogenic focus. The systems and methods convey ablating energy to bipolar pairs of the electrodes to form large bipolar lesins in heart tissue.

    Abstract translation: 系统和方法检测心脏组织中的电事件以识别用于消融的致心律失常焦点的位置。 系统和方法建立心脏组织与曲线电极阵列（e1-e4或E1-E4）之间的接触部位。 系统和方法监测表示由接触部位中的电极感测的电气事件的信号。 信号被显示为表示电极感测给定电气事件的时间顺序的图形信息。 通过将电极阵列（e1-e4或E1-E4）移动到首先感测到电气事件的电极的大致方向上的一个或多个附加接触位置，医生将在阵列上的所有电极 通常在同一时间感测给定的电气事件。 该接触部位包含致心律失常的焦点。 系统和方法将烧蚀能量传递给双极对的电极，以在心脏组织中形成大的双极性损伤。

    MULTIPLE ELECTRODE SUPPORT STRUCTURES
    73.
    发明申请
    MULTIPLE ELECTRODE SUPPORT STRUCTURES 审中-公开
    多电极支持结构

    公开(公告)号：WO1994021166A1

    公开(公告)日：1994-09-29

    申请号：PCT/US1994002795

    申请日：1994-03-15

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  KORDIS, Thomas, F. ,  PANESCU, Dorin ,  WHAYNE, James, G.

    IPC: A61B05/04

    CPC classification number: A61B5/6858 ,  A61B5/0422 ,  A61B18/1492 ,  A61B2018/00267 ,  A61B2018/1407 ,  A61B2018/1435 ,  A61B2562/0209 ,  A61B2562/043

    Abstract: An electrode support structure has spline elements (22) radiating from a center hub (90) in a circumferentially spaced relationship. The spline elements (22) include terminal ends spaced from the hub which are joined to a base member (62) to form a three-dimensional structure for supporting electrodes (38). The center hub (90) lies essentially within the envelope of the spline elements (22) to present a surface free of projections that can poke into and cause tissue trauma during use.

    Abstract translation: 电极支撑结构具有花键元件（22），其沿圆周间隔开地从中心毂（90）辐射。 花键元件（22）包括与轮毂间隔开的末端，其与基座构件（62）接合以形成用于支撑电极（38）的三维结构。 中心毂（90）基本上位于花键元件（22）的外壳内，以呈现没有突起的表面，其可以在使用过程中进入并引起组织损伤。

    CATHETER STEERING MECHANISM
    77.
    发明申请
    CATHETER STEERING MECHANISM 审中-公开
    导管转向机构

    公开(公告)号：WO1991011213A1

    公开(公告)日：1991-08-08

    申请号：PCT/US1991000662

    申请日：1991-01-31

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  LUNDQUIST, Ingemar ,  THOMPSON, Russell, Blake

    IPC: A61M37/00

    CPC classification number: A61M25/0144 ,  A61B2018/00916 ,  A61B2018/00952 ,  A61M25/0136 ,  A61M25/0147 ,  A61M2025/0161

    Abstract: A steering mechanism (315) including a steering shaft (320) coupled to a controller (410) which includes a handle (540) and apparatus for manipulating the distal end (340) of the steering shaft. The steering shaft includes a flexible coiled spring (170) having a lead spring (350) fixed in position with respect to a distal end thereof in the distal end of the steering shaft. One or more steering wires (360, 370) is affixed at the distal ends thereof to the lead spring. The steering wires extend through the steering shaft to the controller, and the steering apparatus of the controller is used to place tension on one or both of the steering wires. The attachment of the distal ends of the steering wires to the lead spring may be opposite one another or may be offset for providing greater maneuverability. Tension may be placed on the steering wires by wedges (650, 660) mounted transversely to the controller housing, or by rotation of a shaft (450) mounted transversely to the controller housing, the steering wires being attached to the shaft such that rotation in one direction tenses one steering wire, and rotation in the other direction tenses the other steering wire. Two independently rotatable shafts (1560, 1590) may be used to separately control the two steering wires. The steering shaft is adapted for insertion into a lumen (45) of a catheter (40) for use in guiding the distal end of the catheter to a treatment site within a patient. The steering mechanism may also be used in conjunction with tools or apparatus which must reach into difficult locations, such as engines or other machines.

    Abstract translation: 一种包括联接到控制器（410）的转向轴（320）的转向机构（315），该控制器包括手柄（540）和用于操纵转向轴的远端（340）的装置。 转向轴包括柔性螺旋弹簧（170），其具有在转向轴的远端相对于其远端固定在适当位置的引导弹簧（350）。 一个或多个操纵线（360,370）在其远端处固定到引导弹簧。 转向线通过转向轴延伸到控制器，并且控制器的转向装置用于在一个或两个转向线上张紧张力。 操纵线的远端连接到引导弹簧可能彼此相对或可以被偏移以提供更大的机动性。 可以通过横向于控制器壳体安装的楔形物（650,660）或通过横向于控制器壳体安装的轴（450）的旋转将张力放置在操纵线上，所述操纵线附接到轴，使得转动 一个方向趋于一个转向线，而另一个方向的旋转也会导致另一个转向线。 可以使用两个可独立旋转的轴（1560,1590）来单独控制两个操纵线。 转向轴适于插入到导管（40）的内腔（45）中，用于将导管的远端引导到患者体内的治疗部位。 转向机构还可以与必须到达困难位置的工具或设备结合使用，例如发动机或其他机器。

    APPARATUS AND METHOD FOR RECORDING MONOPHASIC POTENTIALS
    78.
    发明申请
    APPARATUS AND METHOD FOR RECORDING MONOPHASIC POTENTIALS 审中-公开
    记录单一潜力的装置和方法

    公开(公告)号：WO1990000878A1

    公开(公告)日：1990-02-08

    申请号：PCT/US1989003255

    申请日：1989-07-27

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  FRANZ, Michael ,  LUNDQUIST, Ingemar

    IPC: A61B05/04

    CPC classification number: A61B5/6855 ,  A61B5/042 ,  A61B5/0452 ,  A61B2562/0209 ,  A61B2562/046

    Abstract: The apparatus comprises a probe (60) having a tip portion (64), a first electrode (72) mounted on a terminal free end of the tip portion and a second electrode (74) spaced along the tip portion from the first electrode for supplying a reference potential. The probe is constructed so as to hold the first electrode in contact with tissue of an in vivo beating heart with a positive pressure without causing macroscopic damage to the heart tissue while orienting the probe such that the second electrode is spaced from the heart tissue. A stylet (66) is retractably mounted within the probe, for allowing a physician to maneuver the probe through a vein or the like. In an alternative embodiment, a combination catheter (200) is disclosed, including pacing electrodes (215, 225) for pacing the heart while measuring the potentials thereof.

    Abstract translation: 该装置包括具有尖端部分（64）的探针（60），安装在尖端部分的端子自由端上的第一电极（72）和沿着尖端部分与第一电极间隔开的第二电极（74） 参考潜力。 探针构造成使得第一电极与正压力的体内打浆心脏的组织保持接触，而不会导致对心脏组织的宏观损伤，同时定向探针使得第二电极与心脏组织间隔开。 探针中可伸缩地安装探针（66），用于允许医生通过静脉等操纵探头。 在替代实施例中，公开了组合导管（200），包括用于在测量其电位的同时起搏心脏的起搏电极（215,225）。

Patent Agency Ranking