Open vessel sealing instrument with hourglass cutting mechanism and over-ratchet safety
    31.
    发明申请
    Open vessel sealing instrument with hourglass cutting mechanism and over-ratchet safety 有权
    具有沙漏切割机构和超棘轮安全的开放式密封仪器

    公开(公告)号:US20050154387A1

    公开(公告)日:2005-07-14

    申请号:US10962116

    申请日:2004-10-08

    摘要: An open electrosurgical forceps for sealing tissue includes a pair of first and second shaft members each having a jaw member disposed at a distal end thereof. The jaw members are movable from a first position in spaced relation relative to one another to at least one subsequent position wherein the jaw members cooperate to grasp tissue therebetween. Each of the jaw members includes an electrically conductive sealing plate for communicating electrosurgical energy through tissue held therebetween. At least one of the jaw members includes a knife channel defined along a length thereof which is dimensioned to reciprocate a cutting blade therealong. An actuator is included which is operatively connected to one of the shaft members and selectively advances the cutting mechanism from a first position wherein the cutting blade is disposed proximal to tissue held between the jaw members to at least one subsequent position wherein the cutting blade is disposed distal to tissue held between the jaw members. The cutting blade is a generally hourglass-shaped flexible cutting blade having a notch disposed generally midway therealong which facilitates distal translation of the knife within the knife channel.

    摘要翻译: 用于密封组织的开放的电外科钳包括一对第一和第二轴构件,每个第一和第二轴构件具有设置在其远端处的钳口构件。 钳口构件可以从相对于彼此间隔开的第一位置移动到至少一个随后的位置,其中钳口构件协作以抓住其间的组织。 每个钳口构件包括用于通过保持在其间的组织传导电外科能量的导电密封板。 钳口构件中的至少一个包括沿着其长度限定的刀槽,其尺寸被设计成使其上的切割刀片往复运动。 包括致动器,其可操作地连接到轴构件中的一个,并且选择性地将切割机构从第一位置前进,其中切割刀片设置在保持在夹爪构件之间的组织的近侧至少一个后续位置,其中切割刀片设置 远离组织夹持在钳口构件之间。 切割刀片是通常为沙漏形的柔性切割刀片,其具有通常沿着其中间设置的凹口,其有助于刀在刀具通道内的远端平移。

    Structures and methods for deploying electrode elements
    32.
    发明授权
    Structures and methods for deploying electrode elements 失效
    用于部署电极元件的结构和方法

    公开(公告)号:US06893439B2

    公开(公告)日:2005-05-17

    申请号:US10370334

    申请日:2003-02-18

    摘要: An electrode support structure comprises a guide body having at its distal end a flexible spline leg. The spline leg is flexed to define an arcuate shape to facilitate intimate contact against tissue. An electrode element is carried by the spline leg for movement along its axis. The structure includes a control element coupled to the electrode element. The control element remotely imparts force to move the electrode element along the axis of the spline leg. Therefore, in use, the physician can cause the electrode element to travel along a path that the spline leg defines, without otherwise changing the location of the guide body.

    摘要翻译: 电极支撑结构包括导向体,其在其远端具有柔性花键腿。 花键腿弯曲以限定弓形,以促进与组织的紧密接触。 电极元件由花键腿承载,以沿其轴线移动。 该结构包括耦合到电极元件的控制元件。 控制元件远程地施加力以使电极元件沿着花键腿的轴线移动。 因此,在使用中,医生可以使电极元件沿着花键腿限定的路径行进,而不改变引导体的位置。