DRIVE MECHANISMS FOR SURGICAL INSTRUMENTS
    3.
    发明公开

    公开(公告)号:US20230157715A1

    公开(公告)日:2023-05-25

    申请号:US17949286

    申请日:2022-09-21

    申请人: Covidien LP

    IPC分类号: A61B17/295 A61B34/30

    摘要: A surgical instrument for use with a robotic surgical system includes a shaft extending distally from a housing and first and second jaw members disposed at a distal end of the shaft. The surgical instrument also includes a knife blade configured to cut tissue and a drive input configured to receive a rotational input from a robotic surgical system to drive rotation of an input shaft and translate the knife blade. The surgical instrument also includes a knife blade lock configured to move between a locked position to prevent rotation of the drive input, and an unlocked position such that the drive input is permitted to rotate in response to receiving the rotational input to drive rotation of the input shaft. The surgical instrument also includes a spring configured to bias the knife blade lock into the locked position.

    Surgical instrument having a bipolar end effector assembly and a deployable monopolar assembly

    公开(公告)号:US10537381B2

    公开(公告)日:2020-01-21

    申请号:US15055260

    申请日:2016-02-26

    申请人: COVIDIEN LP

    IPC分类号: A61B18/14 A61B18/00

    摘要: A surgical instrument includes a housing, first, second, and third actuators operably coupled to the housing, an at least partially semi-rigid shaft extending distally from the housing, an end effector assembly disposed at a distal end of the shaft, and first, second, and third bars extending through the shaft in non-coaxial arrangement. The first bar is operably coupled between the first actuator and the end effector assembly such that actuation thereof effects manipulation of the end effector assembly. The second bar is operably coupled between the second actuator and a first deployable component such that actuation thereof effects deployment of the first deployable component relative to the end effector assembly. The third bar is operably coupled between the third actuator and a second deployable component such that actuation thereof effects deployment of the second deployable component relative to the end effector assembly.

    Electrosurgical instrument
    7.
    发明授权

    公开(公告)号:US09375266B2

    公开(公告)日:2016-06-28

    申请号:US14923670

    申请日:2015-10-27

    申请人: COVIDIEN LP

    摘要: An electrosurgical forceps includes a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly is operably coupled to a distal end of the shaft and includes a pair of first and second jaw members. Each jaw member has a jaw housing and an electrosurgical seal plate. The first jaw member is movable relative to the second jaw member from an open configuration to a clamping configuration. The first jaw member includes an elongated channel defined in its respective jaw housing and extends along a length thereof. A drive assembly operably couples to the first jaw member via a drive rod that is engageable with the elongated channel to move the first jaw member from the open configuration to the clamping configuration and to provide a closure force between the jaw members when the jaw members are in the clamping configuration.

    BLADE OPTIMIZATION FOR ROBOTIC ASSISTED SEALING INSTRUMENT

    公开(公告)号:US20240238000A1

    公开(公告)日:2024-07-18

    申请号:US18558632

    申请日:2022-05-03

    申请人: Covidien LP

    摘要: A method of determining the distal throw of a knife blade of a robotic surgical instrument includes selectively engaging an end effector onto a housing of a robotic surgical instrument homing a knife blade. The method further includes initiating an end stop detection algorithm including: actuating a knife drive coupler to advance the knife blade distally through a knife channel defined within the end effector; calculating the running torque average of the knife drive coupler as the knife blade translates through the knife channel; determining a spike above the running torque average within a predetermined threshold and recording the position of the knife blade as a maximum distal throw of the knife blade; retracting the knife blade to determine an offset position from the maximum distal throw of the knife blade; and recording the offset position of the knife blade for subsequent usage.