HANDHELD ELECTROMECHANICAL SURGICAL SYSTEM
    3.
    发明公开

    公开(公告)号:US20240341758A1

    公开(公告)日:2024-10-17

    申请号:US18751692

    申请日:2024-06-24

    Applicant: Covidien LP

    Abstract: A surgical device includes an end effector having a pair of opposing jaw members and a drive beam movable longitudinally through the pair of opposing jaw members thereby approximating the pair of opposing jaw members relative to each other. The device also includes an adapter assembly configured to selectively couple to the end effector. The adapter assembly includes an actuation assembly configured to mechanically engage the drive beam and to move the drive beam longitudinally. The device also includes a handle assembly configured to selectively couple to the adapter assembly. The handle assembly includes: a power source, a motor coupled to the power source, a sensor configured to measure a force imparted on the drive beam, and a motor controller configured to control the motor to maintain constant force on the drive beam based on the force measured by the sensor during longitudinal movement of the drive beam approximating the pair of opposing jaw members closer relative to each other.

    Firing bailout system for powered surgical stapler

    公开(公告)号:US12089842B2

    公开(公告)日:2024-09-17

    申请号:US17402749

    申请日:2021-08-16

    Abstract: A surgical instrument includes a body, a shaft assembly, an end effector, an actuation assembly, and a bailout mechanism. The shaft assembly extends distally from the body. The end effector is disposed on a distal end of the shaft assembly and includes a first jaw and a second jaw. The actuation assembly includes a pusher member configured to move relative to the end effector to drive movement of the first jaw, the second jaw, or both the first jaw and the second jaw. The bailout mechanism includes a first elongate actuation element and a second elongate actuation element. A portion of the bailout mechanism is configured to selectively apply tension to the first elongate actuation element and the second elongate actuation element to move the pusher member. The first elongate actuation element is stronger in tension than the second elongate actuation element cable.

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