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19 条记录 (耗时 0.019 秒)

    Smoke evacuation electrosurgical pencil with adjustable electrode and vent tube
    2.
    发明授权
    Smoke evacuation electrosurgical pencil with adjustable electrode and vent tube 有权

    公开(公告)号：US11547463B2

    公开(公告)日：2023-01-10

    申请号：US16565150

    申请日：2019-09-09

    申请人： COVIDIEN LP

    发明人： Prakash Manley ,  James D. Allen, IV ,  Tyler J. Bagrosky ,  Conor N. Byrne ,  Jason T. Sanders ,  Chelsea E. Walbridge ,  Chandler E. Lacy

    IPC分类号： A61B18/14 ,  A61B18/00 ,  A61B90/00 ,  A61M39/10

    摘要： An electrosurgical smoke evacuation pencil includes a handle housing having a proximal end portion and a distal end portion, the handle housing defining a first lumen therethrough. The electrosurgical pencil also includes a nozzle disposed within the first lumen and defining a second lumen, the nozzle being movable relative to and within the handle housing and extending proximally past the proximal end portion of the handle housing. The electrosurgical pencil may further include a swivel connector coupled to the distal end portion of the handle housing, the swivel connector configured to couple to a suction source. The electrosurgical pencil includes a hub assembly securedly disposed within the second lumen, the hub assembly including a conductive tube configured to couple to a source of electrosurgical energy, and an electrode slidably disposed within the conductive tube, the electrode being movable relative to and within the conductive tube.

    ANTI-BACKDRIVE ASSEMBLY FOR VESSEL SEALING INSTRUMENT
    3.
    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
    6.
    发明申请
    ANTI-BACKDRIVE MECHANISM FOR VESSEL SEALING INSTRUMENT 有权

    公开(公告)号：US20230094871A1

    公开(公告)日：2023-03-30

    申请号：US17953559

    申请日：2022-09-27

    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

    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. The jaw members movable between open and closed positions for clamping tissue with a closure pressure. The jaw members are adapted to connect to a generator for providing energy thereto. An anti-backdrive mechanism is operably associated with the end effector assembly, the anti-backdrive mechanism including first and second mesh-like electrodes disposed in opposing relation on respective first and second jaw members and including openings defined therein. The first and second mesh-like electrodes compressible between a first configuration for grasping tissue wherein the openings defined within each mesh-like electrode include a first diameter to a second configuration for sealing tissue wherein the openings defined within each mesh-like electrode expand to a second diameter configured to release steam upon activation.

    Gear assembly for surgical instruments
    7.
    发明授权
    Gear assembly for surgical instruments 有权

    公开(公告)号：US11298180B2

    公开(公告)日：2022-04-12

    申请号：US16047139

    申请日：2018-07-27

    申请人： COVIDIEN LP

    发明人： Kurt J. Anglese ,  Jason T. Sanders ,  Dylan R. Kingsley ,  Gregory P. Hertrich

    IPC分类号： A61B18/12 ,  A61B18/14 ,  A61B17/29 ,  A61N1/28 ,  A61B18/00 ,  A61B34/35

    摘要： A surgical instrument includes a housing having a shaft extending distally therefrom, an end effector assembly disposed at a distal end of the shaft, a handle assembly coupled to the housing for manipulating the end effector assembly, a deployable assembly, at least one actuator for deploying and retracting the deployable assembly, and a closure member. The closure member is keyed to the actuator(s) and operably positioned relative to the movable handle of the handle assembly such that, upon rotation of the actuator(s) relative to the housing from an un-actuated position to an actuated position, the closure member is urged into contact with the movable handle to urge the movable handle from an initial position to a compressed position, thereby moving the end effector assembly to an approximated position.

    ANTI-BACKDRIVE MECHANISM FOR VESSEL SEALING INSTRUMENT
    10.
    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.