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    Transducer/waveguide engagement mechanisms for ultrasonic surgical instruments
    23.
    发明授权
    Transducer/waveguide engagement mechanisms for ultrasonic surgical instruments 有权

    公开(公告)号：US10335181B2

    公开(公告)日：2019-07-02

    申请号：US15162020

    申请日：2016-05-23

    Applicant: COVIDIEN LP

    Inventor： Robert B. Stoddard ,  James S. Cunningham ,  William J. Dickhans ,  Russell D. Hempstead ,  John J. Kappus ,  Duane E. Kerr ,  Eric R. Larson ,  William H. Nau, Jr. ,  Anthony B. Ross

    IPC: A61B17/32 ,  A61B17/00

    Abstract: An ultrasonic surgical instrument includes a transducer assembly having a distal engagement member and configured to supply ultrasonic energy. A waveguide defines a longitudinal axis and has a proximal engagement member configured to threadingly engage the distal engagement member. The waveguide is configured to transmit the ultrasonic energy therealong to a distal end thereof for treating tissue. A torque member is coupled to the transducer assembly and is disposed about the longitudinal axis. The torque member is selectively rotatable about the longitudinal axis and relative to the waveguide to threadingly engage the transducer assembly and the waveguide to one another. The torque member includes a plurality of fingers pivotably coupled thereto and movable between a closed position and an open position. In the open position, each finger extends substantially perpendicularly from the longitudinal axis to define a moment arm that facilitates the engagement of the transducer assembly and the waveguide.

    Knife deployment mechanisms for surgical forceps
    24.
    发明授权
    Knife deployment mechanisms for surgical forceps 有权

    公开(公告)号：US09867658B2

    公开(公告)日：2018-01-16

    申请号：US14795290

    申请日：2015-07-09

    Applicant: COVIDIEN LP

    Inventor： Eric R. Larson ,  Russell D. Hempstead ,  John J. Kappus

    IPC: A61B17/285 ,  A61B18/14 ,  A61B17/295 ,  A61B17/29

    CPC classification number: A61B18/1445 ,  A61B17/295 ,  A61B2017/292 ,  A61B2017/2925 ,  A61B2017/2946 ,  A61B2018/1452 ,  A61B2018/1455

    Abstract: A surgical instrument includes an end effector assembly having jaw members movable between spaced-apart, first approximated, and second approximated positions. A knife is selectively movable relative to the end effector assembly between a retracted position, a first extended position, and a second extended position. A trigger is selectively actuatable between a un-actuated position, a first actuated position, and a second actuated position for moving the knife between its respective positions. A control member prevents movement of the trigger when the jaw members are disposed in the spaced-apart position, permits movement of the trigger to the first actuated position but prevents movement beyond the first actuated position when the jaw members are disposed in the first approximated position, and permits movement of the trigger to the second actuated position but prevents movement beyond the second actuated position when the jaw members are disposed in the second approximated position.

    PARTITIONED SURGICAL INSTRUMENT
    30.
    发明申请
    PARTITIONED SURGICAL INSTRUMENT 有权

    公开(公告)号：US20210038286A1

    公开(公告)日：2021-02-11

    申请号：US17080223

    申请日：2020-10-26

    Applicant: Covidien LP

    Inventor： Christopher A. Deborski ,  Russell D. Hempstead ,  Keir Hart

    IPC: A61B18/14

    Abstract: A surgical instrument includes a reusable component and a disposable component selectively separable from and engagable with the reusable component. The disposable component includes an end effector and a mechanical actuator operable to induce mechanical movement of the end effector. The reusable component is configured for providing electrosurgical energy to the disposable component when engaged with the disposable component. A physical mating feature is configured to maintain engagement between the reusable and disposable components when the reusable and disposable components are engaged, and an electrical mating feature is configured to transmit electrical energy between the disposable and reusable components when the disposable and reusable components are engaged. All mechanical motion resulting from operation of the mechanical actuator may be contained within the disposable component.

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