Robotic surgical assemblies including electrosurgical instruments having articulatable wrist assemblies

    公开(公告)号:US11576733B2

    公开(公告)日:2023-02-14

    申请号:US16268585

    申请日:2019-02-06

    Applicant: COVIDIEN LP

    Inventor: Kurt J. Anglese

    Abstract: An electrosurgical instrument for use in a robotic surgical system includes an electrosurgical end effector, a housing configured to be operably coupled to an instrument drive unit, a shaft extending distally from the housing, and a wrist assembly coupled to a distal end portion of the shaft. The wrist assembly includes a first pivot member and a second pivot member having a proximal end portion movably coupled to the first pivot member, and a distal end portion configured to be coupled to the end effector. The first pivot member has a pair of first and second distally-extending arms each defining a first groove configured to receive and guide a cable.

    MULTI-FUNCTION SURGICAL INSTRUMENT

    公开(公告)号:US20220211425A1

    公开(公告)日:2022-07-07

    申请号:US17704576

    申请日:2022-03-25

    Applicant: Covidien LP

    Abstract: A surgical instrument includes a housing having a shaft extending distally therefrom, an end effector assembly disposed at a distal end of the shaft, a handle assembly coupled to the housing for manipulating the end effector assembly, a deployable assembly, at least one actuator for deploying and retracting the deployable assembly, and a closure member. The closure member is keyed to the actuator(s) and operably positioned relative to the movable handle of the handle assembly such that, upon rotation of the actuator(s) relative to the housing from an un-actuated position to an actuated position, the closure member is urged into contact with the movable handle to urge the movable handle from an initial position to a compressed position, thereby moving the end effector assembly to an approximated position.

    Articulation assembly for a surgical instrument such as for use in a robotic surgical system and methods of assembling the same

    公开(公告)号:US10952800B2

    公开(公告)日:2021-03-23

    申请号:US16395748

    申请日:2019-04-26

    Applicant: COVIDIEN LP

    Inventor: Kurt J. Anglese

    Abstract: A surgical instrument articulation assembly includes a lead screw sub-assembly including four lead screws. A first gear sub-assembly includes first and second gears coupled to the first and third lead screws. A second gear sub-assembly includes third and fourth gears coupled to the second and fourth lead screws, respectively, a first compound gear including a distal gear coupling the first and second gears with one another, and a proximal gear coupled with a first coupling gear disposed about a first input. The third gear sub-assembly includes a second compound gear including a distal gear coupling the third and fourth gears with one another, and a proximal gear coupled with a second coupling gear disposed about a second input. A rotational input provided to the first or second input respectively rotates the first and third lead screws and or the second and fourth lead screws.

    Drive mechanisms for surgical instruments such as for use in robotic surgical systems

    公开(公告)号:US11717355B2

    公开(公告)日:2023-08-08

    申请号:US16260477

    申请日:2019-01-29

    Applicant: COVIDIEN LP

    Abstract: A gearbox assembly and surgical instrument including the same. The gearbox assembly includes a drive gear including a round gear and a lead screw such that a rotational input to the round gear rotates the lead screw. A first hub is threadingly engaged about the lead screw such that rotation of the lead screw translates the first hub. A second hub is spaced-apart from the first hub and engaged with a drive rod. A compression spring is disposed between the hubs. When a force acting against the drive rod is below a threshold, the rotational input translates the first hub, compression spring, second hub, and drive rod. When the force is equal to or above the threshold, the rotational input translates the first hub and compresses the compression spring against the second hub to maintain the second hub and drive rod in position.

    Geared actuation mechanisms for surgical instruments such as for use in robotic surgical systems

    公开(公告)号:US10945797B2

    公开(公告)日:2021-03-16

    申请号:US16260882

    申请日:2019-01-29

    Applicant: COVIDIEN LP

    Inventor: Kurt J. Anglese

    Abstract: A gearbox assembly of a surgical instrument and a surgical instrument including the same are provided. The gearbox assembly includes a carriage configured to selectively translate, four gear systems each including an input portion configured to receive an input and an output portion configured to provide an output, a first differential gear assembly operably coupled between the first and second gear systems, a second differential gear assembly operably coupled between the third and fourth gear systems, and a third differential gear assembly operably coupled between the first and second differential gear assemblies. The third differential gear assembly including an output coupled to the carriage. In response to different inputs provided, the third differential gear assembly provides no output to the carriage. In response to equal inputs provided, the output of the third differential gear assembly translate the carriage.

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