Biopsy forceps instrument having irrigation and aspiration capabilities
    1.
    发明授权
    Biopsy forceps instrument having irrigation and aspiration capabilities 失效
    活检钳具有灌溉和抽吸能力

    公开(公告)号:US5897507A

    公开(公告)日:1999-04-27

    申请号:US756260

    申请日:1996-11-25

    摘要: A biopsy forceps instrument is provided having a proximal actuation handle, a flexible multi-lumen tubular member, at least one control member extending through a lumen, an irrigation means, an aspiration means, and a distal assembly. The proximal actuation handle includes a shaft and a spool slidably mounted on the shaft. The actuation handle is coupled to the proximal ends of both the flexible tubular member and the control member. Lumens of the tubular member form irrigation and aspiration conduits. The distal assembly includes a hollow jaw cup coupled to the aspiration conduit and a hollow movable jaw coupled adjacent the irrigation conduit. The movable jaw is coupled to the control member, such that actuation of the actuation handle moves the movable jaw relative to the jaw cup. Moving the hollow jaws into a closed position provides a substantially fluidtight coupling between the irrigation and aspiration conduits. The actuation handle is also provided with an assembly to control irrigation to and aspiration from the distal assembly. A proximal sample chamber having a removable screen is provided for filtering tissue samples aspirated from the distal assembly. The jaws are activated to cut a tissue sample and the irrigation and aspiration means are activated to move the sample into the sample chamber for retrieving the sample without removing the instrument from a patient.

    摘要翻译: 提供活检钳具有近侧致动手柄,柔性多腔管状构件,延伸穿过内腔的至少一个控制构件,冲洗装置,抽吸装置和远端组件。 近侧致动手柄包括轴和可滑动地安装在轴上的线轴。 致动手柄联接到柔性管状构件和控制构件的近端。 管状部件的流明形成灌溉和抽吸管道。 远端组件包括联接到抽吸导管的中空钳口杯和邻近冲洗管道连接的中空活动钳口。 可移动钳口联接到控制构件,使得致动手柄的致动使可移动钳口相对于钳口杯移动。 将空心钳口移动到关闭位置提供灌溉和抽吸管道之间基本上流体密封的联接。 致动手柄还设置有用于控制来自远端组件的抽吸和抽吸的组件。 提供具有可拆卸屏幕的近端样品室用于过滤从远端组件吸出的组织样本。 激活钳口以切割组织样品,并且激活冲洗和抽吸装置以将样品移动到样品室中以取出样品,而不从患者移除仪器。

    Biopsy forceps instrument having irrigation and aspiration capabilities
    2.
    发明授权
    Biopsy forceps instrument having irrigation and aspiration capabilities 有权
    活检钳具有灌溉和抽吸能力

    公开(公告)号:US06174292B1

    公开(公告)日:2001-01-16

    申请号:US09256317

    申请日:1999-02-24

    IPC分类号: A61B1000

    摘要: A biopsy forceps instrument is provided having a proximal actuation handle, a flexible multi-lumen tubular member, at least one control member extending through a lumen, an irrigation means, an aspiration means, and a distal assembly. The proximal actuation handle includes a shaft and a spool slidably mounted on the shaft. The actuation handle is coupled to the proximal ends of both the flexible tubular member and the control member. Lumens of the tubular member form irrigation and aspiration conduits. The distal assembly includes a hollow jaw cup coupled to the aspiration conduit and a hollow movable jaw coupled adjacent the irrigation conduit. The movable jaw is coupled to the control member, such that actuation of the actuation handle moves the movable jaw relative to the jaw cup. Moving the hollow jaws into a closed position provides a substantially fluidtight coupling between the irrigation and aspiration conduits. The actuation handle is also provided with an assembly to control irrigation to and aspiration from the distal assembly. A proximal sample chamber having a removable screen is provided for filtering tissue samples aspirated from the distal assembly. The jaws are activated to cut a tissue sample and the irrigation and aspiration means are activated to move the sample into the sample chamber for retrieving the sample without removing the instrument from a patient.

    摘要翻译: 提供活检钳具有近侧致动手柄,柔性多腔管状构件,延伸穿过内腔的至少一个控制构件,冲洗装置,抽吸装置和远端组件。 近侧致动手柄包括轴和可滑动地安装在轴上的线轴。 致动手柄联接到柔性管状构件和控制构件的近端。 管状部件的流明形成灌溉和抽吸管道。 远端组件包括联接到抽吸导管的中空钳口杯和邻近冲洗管道连接的中空活动钳口。 可移动钳口联接到控制构件,使得致动手柄的致动使可移动钳口相对于钳口杯移动。 将空心钳口移动到关闭位置提供灌溉和抽吸管道之间基本上流体密封的联接。 致动手柄还设置有用于控制来自远端组件的抽吸和抽吸的组件。 提供具有可拆卸屏幕的近端样品室用于过滤从远端组件吸出的组织样本。 激活钳口以切割组织样品,并且激活冲洗和抽吸装置以将样品移动到样品室中以取出样品,而不从患者移除仪器。

    Helical stent having improved flexibility and expandability
    5.
    发明申请
    Helical stent having improved flexibility and expandability 有权
    螺旋支架具有改善的灵活性和可扩展性

    公开(公告)号:US20050159807A1

    公开(公告)日:2005-07-21

    申请号:US11074806

    申请日:2005-03-08

    摘要: A stent includes a central portion of helically wound undulations formed of struts, cylindrical end portions, and transition zones between the helical portion and the cylindrical portions. According to a first aspect of the invention, the torsional flexibility of the stent is maximized by having bridges connecting adjacent winding be interrupted by the maximum possible number of undulations. In a preferred design, each winding includes nineteen undulations around the circumference, bridges are provided every five undulations. According to a second aspect of the invention, uniform opening of the transition zone is achieved by altering the width, and thereby the flexibility, of a series of struts in accordance with their lengths. Specifically, the long transition zone struts are made wider.

    摘要翻译: 支架包括由支柱,圆柱形端部和螺旋部分和圆柱形部分之间的过渡区形成的螺旋形缠绕起伏的中心部分。 根据本发明的第一方面,通过使连接相邻绕组的桥被最大可能数量的起伏中断,使支架的扭转柔性最大化。 在优选的设计中,每个绕组围绕圆周包括19个起伏,每五个起伏提供桥。 根据本发明的第二方面,通过根据其长度改变一系列支柱的宽度,从而改变柔性,实现过渡区域的均匀打开。 具体来说,长过渡区支柱被做得更宽。

    Arthroscopic surgical instruments
    6.
    发明授权
    Arthroscopic surgical instruments 失效
    关节镜手术器械

    公开(公告)号:US5389104A

    公开(公告)日:1995-02-14

    申请号:US101190

    申请日:1993-08-03

    摘要: An arthroscopic surgical instrument includes a hollow tube with an actuator coupled to its proximal end and an end effector coupled to its distal end. The actuator and the end effector are coupled by a cylindrical push rod which passes through the hollow tube. The push rod includes a frangible link in the form of a flattened portion with strength reducing semicircular side cuts which breaks when a predetermined force is applied to the end effector by the actuator. The end effector includes a stationary jaw and a movable jaw. The stationary jaw is coupled to the distal end of the tube and receives the push rod. The movable jaw is coupled to push rod and is pivotally coupled to the stationary jaw by arcuate engaging surfaces on both jaws. The movable jaw is also provided with a pair of serrated knife-like edges with an inner concave surface between them and the stationary jaw is provided with a receiving opening into which the movable jaw fits when the jaws are in a closed position. The receiving opening is defined by a pair of side walls having an upper taper which terminates in a sharp edge and a distal end wall having a concave inner surface. The concavity of the inner surface of the end wall is defined by a radius from the axis of rotation of the movable jaw. An electrical connection to the hollow tube is provided for supplying the jaws with a cautery current.

    摘要翻译: 关节镜手术器械包括具有联接到其近端的致动器的中空管和连接到其远端的端部执行器。 致动器和端部执行器通过穿过中空管的圆柱形推杆联接。 推杆包括具有强度减小的半圆形侧面切口形式的扁平部分的易碎连杆,当通过致动器将预定的力施加到末端执行器时,该切口断裂。 末端执行器包括固定夹爪和可动夹爪。 固定颚连接到管的远端并接收推杆。 活动夹爪连接到推杆,并通过两个钳口上的弧形接合表面枢转地联接到固定夹爪。 活动夹爪还设置有一对锯齿状的刀状边缘,在它们之间具有内凹面,并且固定夹爪设置有接纳开口,当钳口处于关闭位置时,可动钳口配合到该容纳开口中。 接收开口由一对侧壁限定,所述侧壁具有终止于尖锐边缘的上锥形和具有凹内表面的远端壁。 端壁的内表面的凹面由可移动夹爪的旋转轴线的半径限定。 提供与中空管的电连接,用于向钳​​口提供烧焦电流。

    Endoscopic surgical instrument having a force limiting actuator
    8.
    发明申请
    Endoscopic surgical instrument having a force limiting actuator 审中-公开
    具有力限制致动器的内窥镜外科器械

    公开(公告)号:US20050090837A1

    公开(公告)日:2005-04-28

    申请号:US10867501

    申请日:2004-06-14

    摘要: A flexible endoscopic clip applier includes a flexible coil with a manual actuator coupled to one end and a jaw assembly coupled to the other end. A store of clips is arranged adjacent to the jaw assembly and a clip pusher is arranged adjacent to the store of clips. The actuator includes a lever for opening and closing the jaws, a knob for rotating the jaw assembly, and a crank for dispensing clips. The knob and the lever are coupled to a single control member which extends through the coil to a joiner where it is joined to a pair of pull wires coupled to the jaws. The crank is coupled to a second control member which is threaded along a distal portion. The threaded portion engages a threaded member near the pusher and is coupled to the pusher such that rotation of the threaded control member by the crank causes the pusher to be moved distally.

    摘要翻译: 灵活的内窥镜施夹器包括具有联接到一端的手动致动器的柔性线圈和联接到另一端的钳口组件。 夹子存放在邻近夹爪组件的位置,夹子推动器邻近夹子存放设置。 致动器包括用于打开和关闭夹爪的杆,用于旋转夹爪组件的旋钮和用于分配夹子的曲柄。 旋钮和杠杆联接到单个控制构件,该单个控制构件延伸穿过线圈到接合器,在该接合器处,接合到耦合到钳口的一对牵引线。 曲柄联接到沿着远端部分螺纹的第二控制构件。 螺纹部分接合推动器附近的螺纹构件并且联接到推动器,使得螺纹控制构件通过曲柄的旋转使得推动器向远侧移动。

    X-RAY DEVICE FOR CONTROLLING A DC-AC CONVERTER
    10.
    发明申请
    X-RAY DEVICE FOR CONTROLLING A DC-AC CONVERTER 审中-公开
    用于控制直流 - 交流转换器的X射线装置

    公开(公告)号:US20110080991A1

    公开(公告)日:2011-04-07

    申请号:US12994468

    申请日:2009-05-27

    IPC分类号: A61B6/03 H05G1/12

    摘要: The invention provides an X-ray device for controlling a DC-AC converter, wherein the DC-AC converter is adapted for supplying a resonant circuit and a transformer (105) of a computer tomography gantry (91) with electrical energy, wherein the gantry comprises a rotary part (93) and a stationary part (92), wherein the transformer (105) is adapted for providing a current, feeding a high voltage rectifier circuit (106), providing an output voltage (107), the X-ray device comprises a detector for detecting the output voltage, a predictor (501) for calculating a first output with the use of processing the output voltage (107), wherein the first output represents the change of the output voltage (107) for the possible states of the DC-AC converter (102), a control loop (503) for calculating the required change of the output voltage (107) with the use of processing the output voltage (107) and the target specification, a decision block (502) for calculating a control value with the use of processing the first output and the required change of the output voltage (107), wherein the detector, the predictor (501), the control loop (503) and at least a part of the decision block (502) are adapted to be mounted on the rotary part of the gantry (93), such as the information content to be transmitted from the rotary part of the gantry (93) to the stationary part of the gantry (92) is less than the information content of the output voltage. A further aspect of the invention is a computer tomography gantry (91) comprising an X-ray device according to the invention.

    摘要翻译: 本发明提供了一种用于控制DC-AC转换器的X射线装置,其中DC-AC转换器用于向计算机断层摄影台架(91)提供具有电能的谐振电路和变压器(105),其中,台架 包括旋转部分(93)和固定部分(92),其中所述变压器(105)适于提供电流,馈送高压整流器电路(106),提供输出电压(107),所述X射线 装置包括用于检测输出电压的检测器,用于使用处理输出电压(107)计算第一输出的预测器(501),其中第一输出表示对于可能状态的输出电压(107)的变化 ,用于使用处理所述输出电压(107)和所述目标指定来计算所述输出电压(107)的所需变化的控制回路(503);判定块(502),其中, 用于使用pro计算控制值 确定所述第一输出和输出电压(107)所需的改变,其中所述检测器,所述预测器(501),所述控制回路(503)以及所述判定块(502)的至少一部分适于安装在 台架(93)的旋转部分,例如要从台架(103)的旋转部分发送到台架(92)的静止部分的信息内容小于输出电压的信息内容。 本发明的另一方面是包括根据本发明的X射线装置的计算机断层摄影台架(91)。