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    Transducer/waveguide engagement mechanisms for ultrasonic surgical instruments
    41.
    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
    44.
    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.

    Electrosurgical instrument with a knife blade stop
    47.
    发明授权
    Electrosurgical instrument with a knife blade stop 有权

    公开(公告)号：US09314297B2

    公开(公告)日：2016-04-19

    申请号：US14604324

    申请日：2015-01-23

    Applicant: COVIDIEN LP

    Inventor： Eric R. Larson

    IPC: A61B18/14 ,  A61B19/00 ,  A61B18/00

    CPC classification number: A61B18/1445 ,  A61B18/1447 ,  A61B2018/00607 ,  A61B2018/1455 ,  A61B2090/034 ,  A61B2090/08021

    Abstract: An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly operably coupled to a distal end of the shaft includes a pair of first and second jaw members one of which being movable from an open configuration for positioning tissue therebetween, to a clamping configuration for grasping tissue therebetween. A knife blade assembly includes a knife blade that is translatable within the first and second jaw members when the first and second jaw members are in the clamping configuration. The knife blade assembly includes a medial portion defining an opening therethrough having proximal and distal ends. A knife blade stop in operative communication with the knife blade assembly includes a pair of leading and trailing stops thereon that are configured to contact respective distal and proximal ends of the opening to limit translation of the knife blade assembly.

    ULTRASONIC SURGICAL INSTRUMENT WITH COOLING SYSTEM
    48.
    发明申请
    ULTRASONIC SURGICAL INSTRUMENT WITH COOLING SYSTEM 有权
    超声波手术仪器与冷却系统

    公开(公告)号：US20150073458A1

    公开(公告)日：2015-03-12

    申请号：US14284888

    申请日：2014-05-22

    Applicant: COVIDIEN LP

    Inventor： Robert B. Stoddard ,  Eric R. Larson

    IPC: A61B17/32

    CPC classification number: A61B17/320068 ,  A61B2017/00017 ,  A61B2017/320084

    Abstract: A method of treating tissue includes ultrasonically treating tissue by oscillating a blade of an ultrasonic surgical instrument in contact with tissue and activating a fluid control system to pump cooling fluid through a blade conduit of the blade to cool the blade.

    Abstract translation: 一种治疗组织的方法包括通过振动与组织接触的超声外科器械的刀片来超声处理组织，并激活流体控制系统以将冷却流体泵送通过刀片的刀片导管以冷却刀片。

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