Preloaded surgical instrument interface

    公开(公告)号:US11564758B2

    公开(公告)日:2023-01-31

    申请号:US16831312

    申请日:2020-03-26

    Abstract: A surgical system includes a surgical instrument that is sensitive to backlash that would adversely affect the transmission of controlled torque and position to the surgical instrument. The surgical instrument is coupled to motors in a surgical instrument manipulator assembly via a mechanical interface. The combination of the mechanical interface and surgical instrument manipulator assembly have low backlash, e.g., less than 0.7 degrees. The backlash is controlled in the surgical instrument manipulator assembly. From the drive output disk in the surgical instrument manipulator assembly to the driven disk of the surgical instrument, the mechanical interface has zero backlash for torque levels used in surgical procedures.

    REDUNDANT AXIS AND DEGREE OF FREEDOM FOR HARDWARE-CONSTRAINED REMOTE CENTER ROBOTIC MANIPULATOR
    30.
    发明申请
    REDUNDANT AXIS AND DEGREE OF FREEDOM FOR HARDWARE-CONSTRAINED REMOTE CENTER ROBOTIC MANIPULATOR 有权
    硬件限制远程机器人机器人的冗余轴和自由度

    公开(公告)号:US20130325031A1

    公开(公告)日:2013-12-05

    申请号:US13906888

    申请日:2013-05-31

    Abstract: A remote center manipulator for use in minimally invasive robotic surgery includes a base link held stationary relative to a patient, an instrument holder, and a linkage coupling the instrument holder to the base link. First and second links of the linkage are coupled to limit motion of the second link to rotation about a first axis intersecting a remote center of manipulation. A parallelogram linkage portion of the linkage pitches the instrument holder around a second axis that intersects the remote center of manipulation. The second axis is not coincident with the first axis. Third and fourth links of the linkage are coupled to limit motion of the fourth link to rotation about a third axis intersecting the remote center of manipulation. The third axis is not coincident with either of the first and second axes. Various combinations of hardware-constrained remote center of motion robotic manipulators with redundant mechanical degrees of freedom are disclosed.

    Abstract translation: 用于微创机器人手术的远程中心操纵器包括相对于患者保持固定的基座连接件,仪器夹持器和将仪器夹持器连接到基座连杆的连杆。 联动装置的第一和第二连杆被联接以限制第二连杆围绕与远程操纵中心相交的第一轴线的转动。 连杆的平行四边形连杆部分将仪器夹持器围绕与远程操纵中心相交的第二轴线。 第二轴不与第一轴重合。 联动装置的第三和第四连杆被联接以将第四连杆的运动限制在围绕与远程操纵中心相交的第三轴线的旋转。 第三轴与第一轴和第二轴之一不一致。 公开了具有冗余机械自由度的硬件受限的远程运动机器人操纵器的各种组合。

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