SURGICAL INSTRUMENT WRIST
    1.
    发明公开

    公开(公告)号:US20230293160A1

    公开(公告)日:2023-09-21

    申请号:US18101503

    申请日:2023-01-25

    Abstract: A medical device includes a wrist link, an inner pulley, an outer pulley support, an outer pulley, a first tension member, and a second tension member. The wrist list includes a wrist link body and an inner pulley support extending outward from the wrist link body. The inner pulley is rotatably mounted on the inner pulley support and the inner pulley support extending a first distance away from the wrist link. The outer pulley support is coupled to the wrist link body and extends spaced from the wrist link body. The outer pulley is rotatably mounted on the outer pulley support. The outer pulley support is spaced a second distance away from the wrist link, and the second distance is larger than the first distance. The first tension member extends around the inner pulley and the second tension member extends around the outer pulley.

    CONSTRAINT MECHANISMS, SYSTEMS, AND METHODS
    2.
    发明申请

    公开(公告)号:US20200246983A1

    公开(公告)日:2020-08-06

    申请号:US16776753

    申请日:2020-01-30

    Abstract: A tool includes a transmission mechanism, a shaft rotatable relative to the transmission mechanism, and a stop mechanism associated with the shaft, the stop mechanism being transitionable between a first state and a second state. In the first state, the shaft is free to rotate in a first direction and in a second direction opposite to the first direction. In the second state, the shaft is constrained from rotating in one of the first direction or the second direction by a defined first endpoint of a range of rotational motion of the shaft. Devices and methods relate to rotation stop mechanisms.

    CABLE LENGTH CONSERVING MEDICAL INSTRUMENT

    公开(公告)号:US20220192764A1

    公开(公告)日:2022-06-23

    申请号:US17561294

    申请日:2021-12-23

    Abstract: An apparatus includes a wrist, an end effector, a cable pair, and a transmission. A proximal wrist portion is coupled to a distal end portion of a shaft. Actuation of the wrist moves a distal wrist portion relative to the proximal wrist portion. The end effector is coupled to the distal wrist portion, and can be actuated to move relative to the wrist. The transmission is coupled to a proximal end portion of the shaft, and can move an end of the cable pair to actuate the end effector. The end of the cable pair is routed through a transmission cable path within the transmission. The transmission includes an adjustment mechanism having an input portion that receives a force exerted by the end of the cable pair. The adjustment mechanism is configured to change a length of the transmission cable path in response to a change in the force.

    SURGICAL INSTRUMENT WITH SENSOR ALIGNED CABLE GUIDE

    公开(公告)号:US20210401523A1

    公开(公告)日:2021-12-30

    申请号:US17293020

    申请日:2019-11-15

    Abstract: Control cables in a surgical instrument are kept parallel to the instrument's longitudinal axis to prevent transverse forces from the cables being sensed by a transverse force sensor in the instrument. A surgical instrument includes an elongated hollow shaft having a longitudinal center axis. Multiple cables extend within the shaft. A force sensor includes a beam disposed within the shaft and one or more strain gauges disposed on the beam. A proximal anchor is disposed within the shaft and in contact with a proximal end of the beam. A distal anchor is at the distal end of the shaft and in contact with a distal end of the beam. A cable guide is disposed within the shaft to constrain portions of the multiple cables disposed alongside the beam to movement parallel to the center axis, and so prevent force from the moving cables causing transverse force on the beam.

    CABLE LENGTH CONSERVING MEDICAL INSTRUMENT
    6.
    发明申请

    公开(公告)号:US20190328467A1

    公开(公告)日:2019-10-31

    申请号:US16462114

    申请日:2017-11-17

    Abstract: An apparatus includes a wrist, an end effector, a cable pair, and a transmission. A proximal wrist portion is coupled to a distal end portion of a shaft. Actuation of the wrist moves a distal wrist portion relative to the proximal wrist portion. The end effector is coupled to the distal wrist portion, and can be actuated to move relative to the wrist. The transmission is coupled to a proximal end portion of the shaft, and can move an end of the cable pair to actuate the end effector. The end of the cable pair is routed through a transmission cable path within the transmission. The transmission includes an adjustment mechanism having an input portion that receives a force exerted by the end of the cable pair. The adjustment mechanism is configured to change a length of the transmission cable path in response to a change in the force.

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