中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

66 records (took 0.017 seconds)

    Fixed loop deflectable electrophysiology catheters having an extended braid primary shaft coupled to the periphery of the fixed loop and methods of manufacturing therefor
    41.
    发明申请
    Fixed loop deflectable electrophysiology catheters having an extended braid primary shaft coupled to the periphery of the fixed loop and methods of manufacturing therefor 有权
    固定环可偏转电生理学导管，其具有连接到固定回路周围的延伸编织主轴及其制造方法

    公开(公告)号：US20120116200A1

    公开(公告)日：2012-05-10

    申请号：US12982629

    申请日：2010-12-30

    Applicant: Pianka Roy ,  Alan de la Rama ,  Jennifer Velasco

    Inventor： Pianka Roy ,  Alan de la Rama ,  Jennifer Velasco

    IPC: A61B5/042 ,  B23K31/02 ,  B32B37/12 ,  B23K1/20

    CPC classification number: A61B5/0422 ,  A61B5/6856 ,  A61B18/1492 ,  A61B2017/003 ,  A61B2017/00323 ,  A61B2017/00867 ,  A61B2018/0016 ,  A61B2018/00214 ,  A61B2018/00351 ,  A61B2018/1435 ,  A61B2562/0209 ,  B23K1/0008

    Abstract: An EP catheter includes a tubular body having a proximal region, a neck region, and a distal portion predisposed into a single shallow helical fixed-diameter loop configuration and including a plurality of diagnostic electrodes. In deflectable catheter forms, at least one activation wire extends through at least a portion of the proximal region of the catheter body and is adapted to deflect the up to approximately 180 degrees relative to the proximal region. The catheter can be operated manually by a clinician or via a clinician-surrogate such as a computer processor-controlled surgical system. In addition, a variety of localization, visualization, and/or orientation-specific elements can be incorporated into the devices described, depicted, and claimed herein (e.g., metallic coil members, active impedance emitting or receiving electrodes, fluoroscopically opaque materials, and the like).

    Abstract translation: EP导管包括具有近端区域，颈部区域和远侧部分的管状体，其倾向于单个浅螺旋固定直径环路构造并且包括多个诊断电极。 在可偏转的导管形式中，至少一个激活线延伸穿过导管主体的近端区域的至少一部分并且适于相对于近端区域偏转大约180度。 导管可以由临床医生或经由临床医生代理手术操作，例如计算机处理器控制的手术系统。 此外，可以将各种定位，可视化和/或取向特定的元件并入到本文描述，描绘和要求保护的装置中（例如，金属线圈构件，有源阻抗发射或接收电极，荧光透视材料和 喜欢）。

    Bendable catheter arms having varied flexibility
    42.
    发明申请
    Bendable catheter arms having varied flexibility 有权
    弯曲导管臂具有不同的灵活性

    公开(公告)号：US20110213231A1

    公开(公告)日：2011-09-01

    申请号：US13072357

    申请日：2011-03-25

    Applicant: Sacha C. Hall ,  Dale E. Just ,  Alan de la Rama ,  Cary Hata

    Inventor： Sacha C. Hall ,  Dale E. Just ,  Alan de la Rama ,  Cary Hata

    IPC: A61B5/04

    CPC classification number: A61B18/1492 ,  A61B5/0422 ,  A61B5/4836 ,  A61B5/6858 ,  A61B2018/00267 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00839

    Abstract: In various embodiments, a catheter comprising an expandable electrode assembly or basket is provided. In specific embodiments, the basket is particularly useful for mapping electrical activity at one or more locations within the heart. The basket can comprise a plurality of bendable or deflectable arms. At least one of the arms may have varied flexibility over its length in the form of one or more discontinuities of stiffness or flexibility at an elbow region or other variances in flexibility over the arm's length. Such variance in flexibility may allow the arm to assume a different bent configuration or respond to external factors more positively than possible with an arm having a static or near static flexibility or stiffness over its length.

    Abstract translation: 在各种实施例中，提供了包括可扩张电极组件或篮子的导管。 在具体实施例中，篮子特别适用于在心脏内的一个或多个位置处映射电活动。 篮可以包括多个可弯曲或可偏转的臂。 至少一个臂可以在其长度上具有在肘部区域处的刚度或柔性的一个或多个不连续性的形式或其在臂长度上的其他柔性变化的形式的变化的柔性。 柔性的这种变化可允许臂具有不同的弯曲构型，或者通过在其长度上具有静态或接近静态的柔性或刚度的臂，可以更可靠地响应外部因素。

    Magnetically Guided Catheter With Flexible Tip
    43.
    发明申请
    Magnetically Guided Catheter With Flexible Tip 有权
    带导向导管的弹性尖端

    公开(公告)号：US20110118582A1

    公开(公告)日：2011-05-19

    申请号：US12667338

    申请日：2008-07-03

    Applicant: Alan De la Rama ,  Carlo Pappone ,  Peter Cheng Chen ,  Cary Hata ,  Jared A. Shimizu

    Inventor： Alan De la Rama ,  Carlo Pappone ,  Peter Cheng Chen ,  Cary Hata ,  Jared A. Shimizu

    IPC: A61B19/00 ,  A61B5/0402

    CPC classification number: A61B18/1492 ,  A61B90/06 ,  A61B2017/00867 ,  A61B2018/00023 ,  A61B2018/00029 ,  A61B2018/00148 ,  A61B2018/00154 ,  A61B2018/00351 ,  A61B2018/00357 ,  A61B2018/00839 ,  A61B2018/1465 ,  A61B2018/1475 ,  A61B2090/064 ,  A61B2090/065 ,  A61B2218/002 ,  C08L2201/12

    Abstract: A catheter includes a flexible tubing having a proximal end and a distal end. The catheter also includes an electrode assembly attached to the distal end of the flexible tubing and including a first magnet therein. The electrode assembly including an electrically conductive tip electrode and an electrically nonconductive coupler which is connected between the tip electrode and the distal end of the flexible tubing. The electrically conductive tip electrode comprises a hollow elongated tip electrode including a sidewall provided with one or more elongated gaps extending through the sidewall. The one or more elongated gaps providing flexibility in the sidewall for bending movement of the tip electrode relative to a longitudinal axis of the catheter body. The first magnet is responsive to an external magnetic field to selectively position and guide the electrode assembly within a body of a patient.

    Abstract translation: 导管包括具有近端和远端的柔性管。 导管还包括附接到柔性管的远端并且包括其中的第一磁体的电极组件。 电极组件包括导电尖端电极和连接在尖端电极与柔性管的远端之间的非导电耦合器。 导电尖端电极包括中空细长尖端电极，其包括设置有延伸穿过侧壁的一个或多个细长间隙的侧壁。 所述一个或多个细长间隙在侧壁中提供柔性，用于弯曲尖端电极相对于导管主体的纵向轴线的运动。 第一磁体响应于外部磁场来选择性地将电极组件定位并引导到患者体内。

    System and methods for locating and ablating arrhythomogenic tissues
    47.
    发明申请
    System and methods for locating and ablating arrhythomogenic tissues 审中-公开
    用于定位和消融假性组织的系统和方法

    公开(公告)号：US20050004441A1

    公开(公告)日：2005-01-06

    申请号：US10897887

    申请日：2004-07-22

    Applicant: Peter Chen ,  Alan de la Rama ,  Cary Hata ,  Vivian Tran

    Inventor： Peter Chen ,  Alan de la Rama ,  Cary Hata ,  Vivian Tran

    IPC: A61B5/042 ,  A61B17/00 ,  A61B17/22 ,  A61N7/02 ,  A61B18/04

    CPC classification number: A61N7/022 ,  A61B5/0422 ,  A61B5/6857 ,  A61B2017/00053 ,  A61B2017/00084 ,  A61B2017/00243 ,  A61B2017/22051

    Abstract: A catheter for sensing electrical events about a selected annulus region of the heart and for treating tissue in the selected annulus region has a handle assembly, and a shaft having a proximal end coupled to the handle assembly. The catheter also has a mapping element provided adjacent its distal end, and an ablation element positioned spaced apart along the shaft from the mapping element. The mapping element is first positioned distally to the desired treatment location in the selected annulus region and the distal location is mapped. The expandable member enclosing the ablation element is inflated and contrast medium injected to determine the orientation of the ablation element with respect to the annulus region. After the target ablation site is determined and the PV potentials verified, the ablation element is activated for therapeutic energy delivery.

    Abstract translation: 用于感测关于心脏的所选择的环区域并且用于治疗所选择的环带区域中的组织的电事件的导管具有手柄组件和具有联接到手柄组件的近端的轴。 导管还具有邻近其远端提供的映射元件，以及沿着轴与映射元件间隔开的消融元件。 首先将映射元件定位在所选择的环形区域中的期望治疗位置的远侧，并映射远端位置。 围绕消融元件的可膨胀构件被充气，并且注入造影剂以确定消融元件相对于环带区域的取向。 在确定目标消融部位并验证PV电位之后，消融元件被激活用于治疗能量递送。

    Catheter-based coronary sinus mapping and ablation
    49.
    发明授权
    Catheter-based coronary sinus mapping and ablation 失效
    基于导管的冠状动脉窦定位和消融

    公开(公告)号：US5951471A

    公开(公告)日：1999-09-14

    申请号：US037282

    申请日：1998-03-09

    Applicant: Alan de la Rama ,  Hosheng Tu

    Inventor： Alan de la Rama ,  Hosheng Tu

    IPC: A61B5/042 ,  A61B5/0464 ,  A61N1/05 ,  A61N1/06

    CPC classification number: A61B5/6857 ,  A61B5/0422 ,  A61N1/06 ,  A61B18/1815 ,  A61B2018/1475 ,  A61B2562/0209 ,  A61B2562/043 ,  A61B5/0464 ,  A61N2001/0585

    Abstract: A catheter-based method for coronary sinus mapping, pacing, and ablation, wherein a flexible electrode catheter, having a tip electrode with suspension structure, is pre-shaped to snugly fit into the coronary sinus, so that the tip electrode is positioned into the sinus; the distal section is deflected to expose a predetermined plurality of electrodes; and RF energy is then applied to the coronary sinus tissue through the electrodes to cause activation mapping, and/or ablation.

    Abstract translation: 一种用于冠状静脉窦定位，起搏和消融的基于导管的方法，其中具有悬挂结构的尖端电极的柔性电极导管被预成形以紧密地配合到冠状窦中，使得尖端电极位于 窦; 远侧部分被偏转以暴露预定的多个电极; 然后通过电极将RF能量施加到冠状窦组织，以引起激活作图和/或消融。

    Ablation catheter having flexible tip with multiple flexible electrode segments
    50.
    发明授权
    Ablation catheter having flexible tip with multiple flexible electrode segments 有权

    公开(公告)号：US10220187B2

    公开(公告)日：2019-03-05

    申请号：US13159446

    申请日：2011-06-14

    Applicant: Alan De La Rama ,  Cary Hata

    Inventor： Alan De La Rama ,  Cary Hata

    IPC: A61B18/14 ,  A61M25/00 ,  A61B18/00

    Abstract: A catheter apparatus comprises an elongated catheter body having a distal end, a proximal end, and at least one fluid lumen extending longitudinally therein; and a plurality of flexible electrode segments on a distal portion of the catheter body adjacent the distal end, each pair of neighboring flexible electrode segments being spaced from each other longitudinally by a corresponding electrically nonconductive segment. Each flexible electrode segment comprises a sidewall provided with one or more elongated stiffness reductions extending through the sidewall, the one or more elongated stiffness reductions providing flexibility in the sidewall for bending movement relative to a longitudinal axis of the catheter body. The electrically nonconductive segment is substantially smaller in length than each of the corresponding pair of neighboring flexible electrode segments.

Patent Agency Ranking