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96 条记录 (耗时 0.039 秒)

    Spring assembly for catheter
    51.
    发明授权
    Spring assembly for catheter 失效
    弹簧组件用于导管

    公开(公告)号：US5902291A

    公开(公告)日：1999-05-11

    申请号：US937819

    申请日：1997-09-29

    申请人： Russell A. Houser ,  Russell B. Thompson

    发明人： Russell A. Houser ,  Russell B. Thompson

    IPC分类号： A61M25/00 ,  A61M25/01

    CPC分类号： A61M25/0041 ,  A61M25/0133 ,  A61M2025/09191

    摘要： A catheter having a proximal portion and a distal portion terminating in a distal tip, is provided with a spring assembly contained within its distal tip portion for providing a bias against side to side deflection of the distal tip. The assembly preferably includes a central wire having a first diameter, which central wire extends from the proximal portion of the catheter to the distal portion, and a plurality of wires secured to the central wire adjacent the distal end thereof. Each of the wires is stranded together, preferably twisted helically, around the central wire and preferably has a second diameter substantially smaller than the first diameter. Alternatively, the stranded wires can be attached along and parallel to the larger diameter wire, and the latter wire is of a substantially greater length than the stranded wires.

    摘要翻译： 具有终端于远侧末端的近端部分和远侧部分的导管设置有包含在其远侧末端部分内的弹簧组件，用于提供抵抗远侧末端的侧向偏转的偏压。 组件优选地包括具有第一直径的中心线，该中心线从导管的近端部分延伸到远侧部分，以及固定到中心线的多个线，其邻近其远端。 每个电线绞合在一起，优选螺旋地绞合在中心线周围，并且优选地具有基本上小于第一直径的第二直径。 或者，绞合线可以沿着并且平行于较大直径的线被附接，并且后者的线的长度比绞合线大得多。

    Catheter steering mechanism
    52.
    发明授权
    Catheter steering mechanism 失效
    导管转向机构

    公开(公告)号：US5336182A

    公开(公告)日：1994-08-09

    申请号：US100555

    申请日：1993-07-30

    申请人： Ingemar Lundquist ,  Russell B. Thompson

    发明人： Ingemar Lundquist ,  Russell B. Thompson

    IPC分类号： A61M25/01 ,  A61M25/092 ,  A61M37/00

    CPC分类号： A61M25/0144 ,  A61M25/0136 ,  A61M25/0147 ,  A61B2018/00916 ,  A61B2018/00952 ,  A61M2025/0161

    摘要： A steering mechanism including a steering shaft coupled to a controller which includes a handle and apparatus for manipulating the distal end of the steering shaft. The steering shaft includes a flexible coiled spring having a lead spring fixed in position with respect to a distal end thereof in the distal end of the steering shaft. One or more steering wires 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 mounted transversely to the controller housing, or by rotation of a shaft 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 may be used to separately control the two steering wires.The steering shaft is adapted for insertion into a lumen of a catheter 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.

    摘要翻译： 一种转向机构，其包括联接到控制器的转向轴，所述转向轴包括用于操纵转向轴的远端的手柄和装置。 转向轴包括柔性螺旋弹簧，其具有在转向轴的远端中相对于其远端固定在适当位置的引导弹簧。 一个或多个操纵线在其远端固定到引导弹簧。 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。 张力可以通过横向安装在控制器壳体上的楔子或通过横向安装在控制器壳体上的轴的旋转而被放置在操纵线上，操纵线被附接到轴上，使得一个方向上的旋转使得一个操纵线弯曲，并且 另一个方向的旋转使得另一个导向线变短。 可以使用两个可独立旋转的轴来单独地控制两个操纵线。 转向轴适于插入导管的内腔，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。

    Method of making durable sleeve for enclosing a bendable electrode tip assembly
    53.
    发明授权
    Method of making durable sleeve for enclosing a bendable electrode tip assembly 失效
    制造用于封闭可弯曲电极末端组件的耐用套筒的方法

    公开(公告)号：US5257451A

    公开(公告)日：1993-11-02

    申请号：US790206

    申请日：1991-11-08

    申请人： Stuart D. Edwards ,  Russell B. Thompson

    发明人： Stuart D. Edwards ,  Russell B. Thompson

    IPC分类号： A61M25/01 ,  A61N1/05 ,  B29C61/02 ,  H01R13/56 ,  H01R43/00

    CPC分类号： A61M25/0138 ,  A61M25/0144 ,  A61M25/0147 ,  A61N1/0565 ,  B29C61/025 ,  H01R13/56 ,  A61M2025/0161 ,  Y10S174/08 ,  Y10T29/49117 ,  Y10T29/49194

    摘要： A reinforcing sleeve encloses a bendable electrode tip assembly for a catheter. The reinforcing sleeve is flexible enough to accommodate the bending movement desired for the electrode tip assembly. Still, the reinforcing sleeve provides added strength and resistance against wear and tear during repeated bending operations. The reinforcing sleeve also holds associated steering wires and electrical conducting wires in close intimate contact against the interior support wire of the electrode tip assembly. The intimate contact prevents kinking and chafing of the steering wires and electrical conducting wires during bending operations.

    摘要翻译： 加强套管包围用于导管的可弯曲电极末端组件。 加强套筒足够柔韧以适应电极头组件所需的弯曲运动。 仍然，加强套筒在反复弯曲操作期间提供附加的强度和抵抗磨损和抗撕裂的能力。 加强套筒还保持相关联的操纵线和电导线与电极头组件的内部支撑线紧密接触。 紧密接触可防止弯曲操作期间转向导线和导电线的扭结和擦伤。

    Ablation systems including insulated energy transmitting elements
    58.
    发明授权
    Ablation systems including insulated energy transmitting elements 有权

    公开(公告)号：US06932813B2

    公开(公告)日：2005-08-23

    申请号：US10139091

    申请日：2002-05-03

    申请人： Russell B. Thompson ,  Robert R. Burnside ,  David K. Swanson

    发明人： Russell B. Thompson ,  Robert R. Burnside ,  David K. Swanson

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2018/00083 ,  A61B2018/00101 ,  A61B2018/00196 ,  A61B2018/00214 ,  A61B2018/00244 ,  A61B2018/00357 ,  A61B2018/1497

    摘要： Ablation systems comprise a support body, an energy transmitting element supported by the support body and an insulating member covering a portion of the support body and energy transmitting member. Ablation energy is transmitted from an uncovered, exposed portion of the energy transmitting element. The insulating member may be a distal portion of an introducer sheath. An open segment may be provided in the distal portion to expose a portion of the energy transmitting element. When used in cardiac ablation therapy, for example, the insulating member decreases the amount of ablation energy dissipated in the blood circulating through the heart and thermally insulates the energy transmitting member and the tissue at the ablation site, enabling better control of the ablation process. An inflatable balloon or an expandable web may be provided coupled to the distal portion of the sheath behind the open segment to provide further insulation of the energy transmitting element and of the tissue around the ablation site. In another embodiment, ablation catheters incorporate an insulating member such as the inflatable balloon, expandable web or a cover. Methods of ablating tissue are also disclosed.

    Stem elements for securing tubing and electrical wires to expandable-collapsible electrode structures
    60.
    发明授权
    Stem elements for securing tubing and electrical wires to expandable-collapsible electrode structures 失效
    用于将管道和电线固定到可膨胀的可折叠电极结构的阀杆元件

    公开(公告)号：US5891135A

    公开(公告)日：1999-04-06

    申请号：US630113

    申请日：1996-04-08

    申请人： Jerome Jackson ,  Thomas F. Kordis ,  Russell B. Thompson

    发明人： Jerome Jackson ,  Thomas F. Kordis ,  Russell B. Thompson

    IPC分类号： A61B17/00 ,  A61B17/22 ,  A61B18/14 ,  A61N1/05 ,  A61B17/39

    CPC分类号： A61N1/056 ,  A61B18/1492 ,  A61B2017/00053 ,  A61B2017/00243 ,  A61B2017/22051 ,  A61B2017/22061 ,  A61B2018/00083 ,  A61B2018/00095 ,  A61B2018/00107 ,  A61B2018/00148 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00267 ,  A61B2018/00839

    摘要： A collapsible electrode body is assembled to an end of a catheter tube. A generally rigid stem element having an exterior diameter is connected to the catheter tube. A flexible tube, which has an initial interior diameter smaller than the exterior diameter of the stem element, is deformed into a desired geometry for the electrode body, including a neck region with an enlarged interior diameter greater than the exterior diameter of the stem element. The neck region is slipped about the stem element. Heat is applied to shrink the neck region about the stem element and form a first interference fit junction therebetween. A sleeve is fitted about the first interference fit junction, and heat is applied to shrink the sleeve about the interference fit junction and form a second interference fit junction therebetween. Preferably, after the first interference fit junction is formed, additional heat is applied to thermally fuse the neck region to the stem region.

    摘要翻译： 将可折叠的电极体组装到导管管的一端。 具有外直径的大致刚性的杆元件连接到导管。 具有小于杆元件的外径的初始内径的柔性管变形为电极体的所需几何形状，包括具有大于杆元件的外径的扩大内径的颈部区域。 颈部区域围绕杆元件滑动。 施加热量以使颈部区域围绕杆元件收缩并且在它们之间形成第一干涉配合结。 围绕第一干涉配合接合部安装套筒，并且施加热量以使套筒围绕过盈配合接合部收缩并且在它们之间形成第二干涉配合接合部。 优选地，在形成第一干涉配合结之后，施加额外的热量以将颈部区域热熔合到茎区域。