利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.018 秒)

    Surgical puncture cinch and closure system
    1.
    发明授权
    Surgical puncture cinch and closure system 有权
    手术穿刺系带和闭合系统

    公开(公告)号：US08500757B2

    公开(公告)日：2013-08-06

    申请号：US12844139

    申请日：2010-07-27

    申请人： Manouchehr Miraki ,  Yoon H. Kwon ,  Frank Nguyen

    发明人： Manouchehr Miraki ,  Yoon H. Kwon ,  Frank Nguyen

    IPC分类号： A61B17/04

    CPC分类号： A61B17/06109 ,  A61B17/0482 ,  A61B17/0483 ,  A61B17/06119 ,  A61B2017/00243 ,  A61B2017/003 ,  A61B2017/0406 ,  A61B2017/06052 ,  A61B2017/06076 ,  A61B2017/06095 ,  A61B2090/036 ,  A61F2/2409

    摘要： A system for forming a purse string suture, including a suture applicator having a proximal handle, a length of suture wound on a spool, and a hollow suture needle extending from a distal end of the handle. The suture needle projects distally from the handle in a helical shape and terminates in a sharp distal tip with an opening in one side close to the distal tip. A free end of the length of suture may extend out of the distal tip and back into the hollow suture needle through the opening. The suture needle may have a deflection segment adjacent the distal tip that is more flexible than the rest of the helical distal portion of the suture needle. A linear hollow pivot shaft extends from a distal end of the handle substantially along an axis of the helical distal portion of the suture needle.

    摘要翻译： 一种用于形成钱包线缝合的系统，包括具有近端手柄的缝合线施加器，缠绕在线轴上的一段缝线以及从手柄的远端延伸的中空缝合针。 缝合针从手柄向远端突出呈螺旋状，并终止于尖锐的远端，其一侧的开口靠近远端。 缝合长度的自由端可以延伸出远侧末端并通过开口返回到中空缝合针中。 缝合针可以具有与远侧末端相邻的偏转部分，其比缝合针的螺旋形远端部分的其余部分更柔性。 线性中空枢转轴基本上沿着缝合针的螺旋形远端部分的轴线从手柄的远端延伸。

    Transpedicular intervertebral disk access methods and devices
    3.
    发明授权
    Transpedicular intervertebral disk access methods and devices 有权
    椎弓根椎间盘入路方法及装置

    公开(公告)号：US07318826B2

    公开(公告)日：2008-01-15

    申请号：US10420422

    申请日：2003-04-22

    申请人： George P. Teitelbaum ,  Samuel M. Shaolian ,  Thanh Van Nguyen ,  Frank Nguyen ,  To V. Pham ,  Vincent Divino, Jr. ,  Michael R. Henson

    发明人： George P. Teitelbaum ,  Samuel M. Shaolian ,  Thanh Van Nguyen ,  Frank Nguyen ,  To V. Pham ,  Vincent Divino, Jr. ,  Michael R. Henson

    IPC分类号： A61B17/56

    CPC分类号： A61B17/1617 ,  A61B17/1642 ,  A61B17/1675 ,  A61B17/1757 ,  A61B17/320016 ,  A61B17/7097 ,  A61B2017/00261 ,  A61B2017/00867 ,  A61B2017/564 ,  A61F2/442 ,  A61F2002/444

    摘要： A flexible drill and method of drilling a material are disclosed. According to one embodiment, a flexible drill includes a lower sub-assembly connected to an upper sub-assembly, where the lower sub-assembly comprises a retainer tube and the upper sub-assembly comprises a guiding tube; a drilling tip, and capable of orienting the drilling tip at a predetermined position after accessing a material to he drilled through a substantially straight passage having a lone axis. The predetermined position is at least 10° off of the lone axis of the substantially straight passage. According to one embodiment, a method of drilling a material includes the steps of (a) providing a flexible drill; (b) advancing the drill through a substantially straight passage until the drilling tip accesses the material to be drilled, thereby orienting the drilling tip at the predetermined position; and (c) actuating the drill.

    摘要翻译： 公开了一种钻孔材料的柔性钻孔和钻孔方法。 根据一个实施例，柔性钻头包括连接到上部子组件的下部子组件，其中下部子组件包括保持器管，并且上部子组件包括导向管; 钻头，并且能够在将钻头从访问通过具有单独轴线的基本上直的通道钻出的材料之后定位在预定位置。 预定位置距离基本上直的通道的单独轴线至少10°。 根据一个实施例，钻探材料的方法包括以下步骤：（a）提供柔性钻头; （b）将钻头推进通过基本上直的通道，直到钻头接触待钻探的材料，从而将钻头定位在预定位置; 和（c）致动钻头。

    Method and system for reducing pop noise of a sound broadcasting instrument
    4.
    发明申请
    Method and system for reducing pop noise of a sound broadcasting instrument 有权
    用于减少声音广播乐器的流行噪音的方法和系统

    公开(公告)号：US20050195991A1

    公开(公告)日：2005-09-08

    申请号：US10862917

    申请日：2004-06-07

    申请人： Yuhe Wang ,  Peter White ,  Daniel Ho ,  Frank Nguyen ,  Chin-Chi Chang ,  Jeetin Rathore

    发明人： Yuhe Wang ,  Peter White ,  Daniel Ho ,  Frank Nguyen ,  Chin-Chi Chang ,  Jeetin Rathore

    IPC分类号： H02B1/00 ,  H04B15/00

    CPC分类号： H03F1/305 ,  H03F3/187 ,  H03G3/002 ,  H03M1/0881 ,  H03M1/66

    摘要： A method and system are disclosed for controlling pop noises in a sound broadcasting system. After controllably connecting an output of a drive amplifier to a first predetermined low voltage level through a first switch, a first portion of an operation control data set is input to a digital-to-analog converter (DAC) circuit for driving an output thereof to a second predetermined low voltage level, and a second portion of the operation control data set is also input to the DAC circuit and further to the drive amplifier to bring the output of the drive amplifier to a common mode voltage level over a predetermined rise-up time period for controlling the pop noises.

    摘要翻译： 公开了一种用于控制声音广播系统中的弹奏噪声的方法和系统。 在通过第一开关可控地将驱动放大器的输出连接到第一预定低电压电平之后，操作控制数据组的第一部分被输入到数模转换器（DAC）电路，用于驱动其输出到 第二预定低电压电平和第二部分操作控制数据组也被输入到DAC电路，并进一步输入到驱动放大器，以使驱动放大器的输出达到预定上升沿的共模电压电平 控制流行音色的时间段。

    Atrioventricular valve tissue ablation catheter and method
    5.
    发明授权
    Atrioventricular valve tissue ablation catheter and method 失效
    房室瓣膜组织消融导管及方法

    公开(公告)号：US5823955A

    公开(公告)日：1998-10-20

    申请号：US559672

    申请日：1995-11-20

    申请人： Karl Heinz Kuck ,  Frank Nguyen

    发明人： Karl Heinz Kuck ,  Frank Nguyen

    IPC分类号： A61B18/14 ,  A61N1/05 ,  A61N1/40 ,  A61B5/04 ,  A61N1/36

    CPC分类号： A61B18/1492 ,  A61N1/056 ,  A61N1/403 ,  A61B2018/00369 ,  A61B2018/00654 ,  A61B2018/00797 ,  A61B2018/00821 ,  A61B2018/00839 ,  A61B2018/00952

    摘要： An atrioventricular valve tissue ablation catheter (2), especially suited for treating Mahaim fibers, includes a shaft (4) with a deflectable tip (20) at the distal end (6) and a handle (10) at the proximal end (8). The tip includes a distal segment (66) curving in one direction and a proximal segment (44) curving in the opposite direction so the distal segment causes the distal segment can engage tissue on either side of the annulus (92) of the tricuspid (or mitral) valve (90). Ablation energy can be supplied through the ablation electrodes (46, 70) simultaneously or one at a time to ablate tissue at the annulus without the need for moving the catheter. Mapping electrodes (38) are provided proximal of the ablation electrodes.

    摘要翻译： 特别适用于治疗马赫姆纤维的房室瓣膜组织消融导管（2）包括在远端（6）处具有可偏转尖端（20）的轴（4）和近端（8）处的手柄（10） 。 尖端包括在一个方向上弯曲的远端段（66）和沿相反方向弯曲的近端段（44），使得远端区段使得远侧段可以接合三尖瓣环（92）的任一侧上的组织（或 二尖瓣）（90）。 消融能量可以通过消融电极（46,70）同时或一次一次地供应，以消除环空中的组织，而不需要移动导管。 映射电极（38）设置在消融电极的近侧。

    Steerable catheter with a control handle having a pulley mechanism
    8.
    发明授权
    Steerable catheter with a control handle having a pulley mechanism 有权

    公开(公告)号：US06522933B2

    公开(公告)日：2003-02-18

    申请号：US09822087

    申请日：2001-03-30

    申请人： Frank Nguyen

    发明人： Frank Nguyen

    IPC分类号： A61N100

    CPC分类号： A61M25/0136

    摘要： A steerable catheter is provided. The catheter comprises an elongated, flexible tubular catheter body having proximal and distal ends and a lumen extending therethrough and a control handle at the proximal end of the catheter body. The control handle comprises a handle housing having a generally hollow interior and fixedly attached, either directly or indirectly to the catheter body; a piston slidably mounted in the handle housing and having proximal and distal ends; and a pulley fixedly attached, either directly or indirectly to the handle housing at a location proximal to the proximal end of the piston. A first puller wire is provided having a distal end fixedly attached in the distal end of the catheter body and a proximal end anchored to the piston. A second puller wire is provided having a distal end fixedly attached in the distal end of the catheter body. The second puller wire extends through the catheter body, into the handle, and around the pulley, and the proximal end of the second puller wire is anchored to the piston.

    Asymmetrical bidirectional steerable catheter
    10.
    发明授权
    Asymmetrical bidirectional steerable catheter 有权

    公开(公告)号：US06551271B2

    公开(公告)日：2003-04-22

    申请号：US09846732

    申请日：2001-04-30

    申请人： Frank Nguyen

    发明人： Frank Nguyen

    IPC分类号： A61M3700

    CPC分类号： A61B18/1492 ,  A61B34/20 ,  A61B2017/00053 ,  A61B2017/003 ,  A61B2034/2051

    摘要： A bidirectional steerable catheter is provided that can be deflected to form two different curves, i.e., two curves each having a different radius of curvature. The catheter comprises an elongated, flexible tubular catheter body having proximal and distal ends and a lumen extending therethrough. A tip section is provided at the distal end of the catheter body. The tip section comprises a flexible plastic tubing having at least first and second off-axis lumens extending therethrough. A control handle is attached to the proximal end of the catheter body. A first puller wire extends through the lumen of the catheter body and the first off-axis lumen of the tip section. The first puller wire has a distal end anchored in the tip section and a proximal end anchored to the control handle. A second puller wire extends through the lumen of the catheter body and the second off-axis lumen of the tip section. The second puller wire has a distal end anchored in the tip section and a proximal end anchored to the control handle. A first compression coil extends through the lumen of the catheter body in surrounding relation to the first puller wire. The first compression coil has a distal end anchored in the catheter body or in the first off-axis lumen of the tip section at a first anchor position. A second compression coil extends through the lumen of the catheter body in surrounding relation to the second puller wire and into the second off-axis lumen. The second compression coil has a distal end anchored in the second off-axis lumen of the tip section at a second anchor position that is distal to the first anchor position. By this design, the radius of curvature of each curve achieved by deflection of the tip section is controlled by the anchor position of the compression coil surrounding the appropriate puller wire.