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    ANTI-BACKDRIVE MECHANISM FOR VESSEL SEALING INSTRUMENT
    1.
    发明申请
    ANTI-BACKDRIVE MECHANISM FOR VESSEL SEALING INSTRUMENT 有权

    公开(公告)号：US20220409266A1

    公开(公告)日：2022-12-29

    申请号：US17849048

    申请日：2022-06-24

    申请人： Covidien LP

    发明人： Grant T. Sims ,  William R. Whitney ,  Jason G. Weihe ,  James D. Allen, IV ,  Jason T. Sanders ,  Alyssa M. Sawyer ,  Curtis M. Siebenaller

    IPC分类号： A61B18/14 ,  A61B18/12

    摘要： A vessel sealing instrument includes a housing having a shaft extending from a distal end thereof, the distal end including an end effector assembly having a pair of opposing jaw members operably coupled thereto. One or both of the jaw members is moveable between open and closed positions for clamping tissue with a closure pressure. One or both of the jaw members connects to a generator that provides energy thereto in accordance with a sealing algorithm upon activation thereof. An anti-backdrive mechanism is coupled to the end effector assembly and includes a drive shaft coupled at one end to a solenoid and another end that engages one of the jaw members upon extension thereof to provide additional closure pressure between the jaw members. The drive shaft is extendible by the solenoid to extend the drive shaft in response to tissue expansion during sealing based on the sealing algorithm.

    END EFFECTOR ASSEMBLIES FOR SURGICAL INSTRUMENTS SUCH AS FOR USE IN ROBOTIC SURGICAL SYSTEMS
    3.
    发明申请
    END EFFECTOR ASSEMBLIES FOR SURGICAL INSTRUMENTS SUCH AS FOR USE IN ROBOTIC SURGICAL SYSTEMS 有权

    公开(公告)号：US20220071651A1

    公开(公告)日：2022-03-10

    申请号：US17017604

    申请日：2020-09-10

    申请人： Covidien LP

    发明人： Dylan R. Kingsley ,  Jason G. Weihe ,  William R. Whitney ,  Zachary S. Heiliger ,  Curtis M. Siebenaller ,  Crystal A. Adams

    IPC分类号： A61B17/295

    摘要： An end effector assembly includes a clevis having first and second spaced-apart arms, a ceiling, a floor, pivot and cam pins extending between the arms, and first and second jaw members. Each jaw member includes a proximal portion and a distal body extending distally from the clevis. The proximal portion of the first jaw member includes a first flag disposed between the first and second arms of the clevis, operably coupled to both the pivot pin and the cam pin, extending vertically at least partially through openings defined within the ceiling and floor. The proximal portion of the second jaw member includes second and third flags disposed between the first and second arms of the clevis in spaced-apart relative to one another and between the ceiling and the floor. The second and third flags are fixedly engaged to the clevis.

    ANTI-BACKDRIVE ASSEMBLY FOR VESSEL SEALING INSTRUMENT
    5.
    发明申请
    ANTI-BACKDRIVE ASSEMBLY FOR VESSEL SEALING INSTRUMENT 有权

    公开(公告)号：US20220409265A1

    公开(公告)日：2022-12-29

    申请号：US17849032

    申请日：2022-06-24

    申请人： Covidien LP

    发明人： Grant T. Sims ,  William R. Whitney ,  Jason G. Weihe ,  James D. Allen, IV ,  Jason T. Sanders ,  Alyssa M. Sawyer ,  Curtis M. Siebenaller

    IPC分类号： A61B18/14 ,  A61B18/12

    摘要： A vessel sealing instrument includes a housing having a shaft extending from a distal end thereof having an end effector assembly including a pair of opposing first and second jaw members operably coupled thereto. A drive assembly is disposed within the housing and is configured to move the jaw members upon actuation thereof between an open position and a closed position for clamping tissue with a closure pressure within the range of about 3 kg/cm2 to about 16 kg/cm2. An anti-backdrive assembly is operably disposed within the housing and includes a drive wedge. A solenoid controller is operably coupled to the drive wedge and is configured to selectively move the drive wedge into the drive assembly upon activation thereof to increase the closure pressure between the jaw members in response to tissue expansion during sealing.

    ANTI-BACKDRIVE MECHANISM FOR VESSEL SEALING INSTRUMENT
    8.
    发明申请
    ANTI-BACKDRIVE MECHANISM FOR VESSEL SEALING INSTRUMENT 有权

    公开(公告)号：US20220409264A1

    公开(公告)日：2022-12-29

    申请号：US17849014

    申请日：2022-06-24

    申请人： Covidien LP

    发明人： Grant T. Sims ,  William R. Whitney ,  Jason G. Weihe ,  James D. Allen, IV ,  Jason T. Sanders ,  Alyssa M. Sawyer ,  Curtis M. Siebenaller

    IPC分类号： A61B18/14 ,  A61B18/12

    摘要： A vessel sealing instrument includes a housing having a shaft extending from a distal end thereof including an end effector assembly having opposing first and second jaw members operably coupled thereto. One of the jaw members moveable between open and closed positions for clamping tissue with a closure pressure within the range of about 3 kg/cm2 to about 16 kg/cm2. The jaw members are adapted to connect to a generator for providing energy thereto in accordance with a sealing algorithm. An anti-backdrive mechanism is associated with the end effector assembly and includes: a drive shaft coupled to a controller and a screw on opposite ends, the screw configured to engage one of the jaw members upon extension thereof to provide additional closure pressure therebetween. The drive shaft is rotatable by the controller to extend the screw in response to tissue expansion during sealing based on the sealing algorithm.

    ELECTROSURGICAL INSTRUMENTS FOR CONTROLLING THERMAL DAMAGE
    9.
    发明申请
    ELECTROSURGICAL INSTRUMENTS FOR CONTROLLING THERMAL DAMAGE 有权

    公开(公告)号：US20220133396A1

    公开(公告)日：2022-05-05

    申请号：US17575746

    申请日：2022-01-14

    申请人： Covidien LP

    发明人： Weijiang Ding ,  Jianjiang Chen ,  Daniel A. Joseph ,  Kai Liu ,  William H. Nau, JR. ,  Arlen K. Ward ,  William R. Whitney

    IPC分类号： A61B18/14 ,  A61B18/00

    摘要： An end effector assembly includes a first jaw member having a first tissue contact surface and a second jaw member having a second tissue contact surface. The second jaw member is pivotally coupled to the first jaw member. The tissue contact surfaces may include raised steps that define an exhaust channel. A longitudinally extending knife slot may be defined in one or both of the tissue contact surfaces. One or more exhaust slots, which may be defined in one or both of the tissue contact surfaces, are in communication with the knife slot. The exhaust channel and the exhaust slots direct fluid away from the jaw members to minimize thermal damage risks associated with tissue sealing.