Flexible wrist for surgical tool
    42.
    发明授权

    公开(公告)号:US10524868B2

    公开(公告)日:2020-01-07

    申请号:US15435254

    申请日:2017-02-16

    Abstract: The present invention is directed to a tool having a wrist mechanism that provides pitch and yaw rotation in such a way that the tool has no singularity in roll, pitch, and yaw. In one embodiment, a minimally invasive surgical instrument includes an elongate shaft having a working end, a proximal end, and a shaft axis between the working end and the proximal end; and an end effector. A wrist member has a flexible tube including an axis extending through an interior surrounded by a wall. The wall of the flexible tube includes a plurality of lumens oriented generally parallel to the axis of the flexible tube. The wrist member has a proximal portion connected to the working end of the elongate shaft and a distal portion connected to the end effector. A plurality of actuation cables have distal portions connected to the end effector and extend from the distal portion through the lumens of the wall of the wrist member toward the elongate shaft to proximal portions which are actuatable to bend the wrist member in pitch rotation and yaw rotation.

    Direct Pull Surgical Gripper
    50.
    发明申请
    Direct Pull Surgical Gripper 审中-公开
    直接拉手术钳

    公开(公告)号:US20160256183A1

    公开(公告)日:2016-09-08

    申请号:US15157308

    申请日:2016-05-17

    Inventor: Thomas G. Cooper

    Abstract: A surgical end effector includes a clevis and two jaws rotatably coupled to the clevis. Each jaw includes a face that is perpendicular to the axis of rotation of the jaw. A rocking pin is pivotally supported by the clevis. The opposite ends of the rocking pin engage the faces of the jaws to constrain the jaws to have opposite motions around the axes of rotation of the jaws. The clevis may be coupled to an elongate shaft with wires extending through the shaft to provide an endoscopic instrument. The jaws may be opened and closed by pushing and pulling on the wires. A wire guide may support the wires in the shaft such that they are able to transmit a compressive force without buckling. The wires may carry electricity to the jaws for electrocautery.

    Abstract translation: 手术末端执行器包括U形夹和可旋转地联接到U形夹的两个钳口。 每个钳口包括垂直于钳口旋转轴线的面。 摇摆销由U形夹可枢转地支撑。 摆动销的相对端与钳口的表面接合,以约束钳口以围绕钳口的旋转轴线具有相反的运动。 U形夹可以连接到细长轴,其中丝线延伸穿过轴以提供内窥镜器械。 夹爪可以通过推拉电线来打开和关闭。 线引导件可以支撑轴中的线,使得它们能够传递压缩力而没有弯曲。 电线可以携带电力到钳口进行电烙。

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