ROTARY INPUT FOR LEVER ACTUATION
    81.
    发明申请

    公开(公告)号:US20190314046A1

    公开(公告)日:2019-10-17

    申请号:US16456148

    申请日:2019-06-28

    IPC分类号: A61B17/28 A61B34/30 A61B34/00

    摘要: A force transmission with means for winding a first cable onto a first capstan and a second cable onto a second capstan with a first axis of rotation. The first and second cables wound such that when one of the two cables is payed out, the other of the two cables is payed in. The force transmission further includes means for passing the first and cables over an idler pulley in opposite directions. The idler pulley has a second axis of rotation substantially perpendicular to the first axis of rotation. The force transmission further includes means for coupling the first cable to a lever to rotate the lever in a first direction and means for coupling the second cable to the lever to rotate the lever in a second direction opposite the first direction, the lever having a third axis of rotation substantially parallel to the second axis of rotation.

    Rotary input for lever actuation
    83.
    发明授权

    公开(公告)号:US10335176B2

    公开(公告)日:2019-07-02

    申请号:US16121831

    申请日:2018-09-05

    摘要: A medical device includes a lever with an applied force position, a load position, and a fulcrum position. A first cable extends from the applied force position of the lever to a first capstan, the first cable wrapping around the first capstan. A second cable extends from the applied force position of the lever to a second capstan, the second cable wrapping around the second capstan. A rod couples the load position of the lever and a surgical end effector. The first and second capstans may be fixed to an axle. The axle may receive a rotational input from a rotary actuator. A hand wheel may be coupled to the axle. There may be a spring between a support structure and the lever to bias the lever to rotate about the fulcrum position of the lever.

    CABLE TENSIONING IN A ROBOTIC SURGICAL SYSTEM

    公开(公告)号:US20190167369A1

    公开(公告)日:2019-06-06

    申请号:US16250059

    申请日:2019-01-17

    摘要: A cable tensioning system of a surgical system comprises a base, an arm, and a moveable idler pulley rotatably coupled to a first end of the arm and positioned between a first pulley system and a second pulley system. A closed loop cable drive extends between the first pulley system and the second pulley system, and the closed loop cable drive passes over the moveable idler pulley. The cable tensioning system also comprises a translation mechanism slidably coupling a second end of the arm to the base. The translation mechanism is configured to move the arm relative to the base along a linear path between a first position and a second position such that the moveable idler pulley is moved away from at least one of the first pulley system or the second pulley system to control a tension in the closed loop cable drive.

    ROBOTIC INSTRUMENT DRIVEN ELEMENT
    86.
    发明申请

    公开(公告)号:US20180280097A1

    公开(公告)日:2018-10-04

    申请号:US16000543

    申请日:2018-06-05

    IPC分类号: A61B34/30 A61B17/00

    摘要: A surgical system (200) includes a surgical instrument (260) that is sensitive to backlash that would adversely affect the transmission of controlled torque and position to the surgical instrument. The surgical instrument (260) is coupled to motors in a surgical instrument manipulator assembly (240) via a mechanical interface. The combination of the mechanical interface and surgical instrument manipulator assembly (240) have low backlash, e.g., less than 0.7 degrees. The backlash is controlled in the surgical instrument manipulator assembly (240). From the drive output disk (545) in the surgical instrument manipulator assembly to the driven disk (964) of the surgical instrument, the mechanical interface has zero backlash for torque levels used in surgical procedures.

    Rotary input for lever actuation
    87.
    发明授权

    公开(公告)号:US10076348B2

    公开(公告)日:2018-09-18

    申请号:US14461260

    申请日:2014-08-15

    摘要: A surgical instrument includes a surgical end effector coupled to an elongate tube and a rod that passes through the elongate tube. A control mechanism coupled to the elongate tube includes an input axle having a first axis of rotation, an idler pulley having a second axis of rotation perpendicular to the first axis, and a lever coupled to the rod and having a third axis of rotation parallel to the second axis. First and second capstans are fixed to the input axle. Cables pass over the idler pulley and are coupled to the lever. Rotating the input axle in a first direction winds a first cable onto the first capstan, rotates the lever, and moves the rod in a second direction. Rotating the input axle opposite the first direction winds a second cable onto the second capstan, rotates the lever, and moves the rod opposite the second direction.

    Robotic instrument driven element
    88.
    发明授权

    公开(公告)号:US10016244B2

    公开(公告)日:2018-07-10

    申请号:US14911508

    申请日:2014-08-14

    IPC分类号: A61B17/00 A61B34/30

    摘要: A surgical system (200) includes a surgical instrument (260) that is sensitive to backlash that would adversely affect the transmission of controlled torque and position to the surgical instrument. The surgical instrument (260) is coupled to motors in a surgical instrument manipulator assembly (240) via a mechanical interface. The combination of the mechanical interface and surgical instrument manipulator assembly (240) have low backlash, e.g., less than 0.7 degrees. The backlash is controlled in the surgical instrument manipulator assembly (240). From the drive output disk (545) in the surgical instrument manipulator assembly to the driven disk (964) of the surgical instrument, the mechanical interface has zero backlash for torque levels used in surgical procedures.