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    Trigger lockout and kickback mechanism for surgical instruments
    3.
    发明授权
    Trigger lockout and kickback mechanism for surgical instruments 有权

    公开(公告)号：US10383649B2

    公开(公告)日：2019-08-20

    申请号：US14814602

    申请日：2015-07-31

    Applicant: COVIDIEN LP

    Inventor： John R. Twomey

    IPC: A61B17/29 ,  A61B18/14 ,  A61B17/295 ,  A61B17/00 ,  A61B18/00

    Abstract: A forceps includes an end effector assembly including first and second jaw members, a blade, a lever member operably coupled to the end effector, a trigger member operably coupled to the blade and defining an actuation path therealong. A trigger safety member is pivotably coupled to the lever member such that, when the lever member is disposed in an initial position, the trigger safety member is disposed in a position blocking the trigger member. When the lever member is disposed in a compressed position, the trigger safety member is disposed in a position, wherein the trigger safety member is displaced from the actuation path to permit movement of the trigger member, wherein the safety member rotates relative to the lever member as a function of movement of the lever member to block/unblock the trigger member.

    Electrosurgical instrument
    6.
    发明授权
    Electrosurgical instrument 有权

    公开(公告)号：US09375266B2

    公开(公告)日：2016-06-28

    申请号：US14923670

    申请日：2015-10-27

    Applicant: COVIDIEN LP

    Inventor： John R. Twomey ,  James D. Allen, IV ,  Edward M. Chojin ,  Dylan R. Kingsley ,  Jeffrey R. Unger

    IPC: A61B18/14 ,  A61B17/29 ,  A61B18/08 ,  A61B18/00

    CPC classification number: A61B18/1445 ,  A61B17/29 ,  A61B18/085 ,  A61B2017/2932 ,  A61B2017/2933 ,  A61B2018/00595 ,  A61B2018/1455

    Abstract: 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.

    Surgical instrument
    10.
    发明授权
    Surgical instrument 有权

    公开(公告)号：US10405874B2

    公开(公告)日：2019-09-10

    申请号：US14268140

    申请日：2014-05-02

    Applicant: COVIDIEN LP

    Inventor： John R. Twomey ,  Jessica E. C. Olson ,  Grant T. Sims ,  Loren Toth ,  Monte S. Fry ,  Michael B. Lyons

    IPC: A61B17/28 ,  A61B18/14 ,  A61B34/00 ,  A61B18/00 ,  A61B90/00

    Abstract: A surgical instrument is provided. The surgical instrument includes a housing. A movable handle is coupled to the housing and is configured to approximate a pair of jaw members toward and away from one another. A latch mechanism operably couples to the movable handle and includes one or more mechanical interfaces configured to selectively engage a corresponding mechanical interface disposed within the housing to lock and unlock the jaw members in an approximated configuration. When the movable handle is in a jammed position, the mechanical interface(s) of the latch mechanism is/are configured to deform and separate from the corresponding mechanical interface disposed within the housing when the movable handle is moved from the jammed position.

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