ELECTROSURGICAL INSTRUMENTS AND SYSTEMS INCLUDING THERMAL CUTTING ELEMENTS

    公开(公告)号:US20210244464A1

    公开(公告)日:2021-08-12

    申请号:US16785330

    申请日:2020-02-07

    Applicant: Covidien LP

    Abstract: An electrosurgical instrument includes an end effector assembly including first and second jaw members. At least one of the first or second jaw members is movable relative to the other from a spaced-apart position to an approximated position to grasp tissue therebetween. A thermal cutting wire is disposed on at least a portion of at least one of the first or second jaw members. The thermal cutting wire is configured for ferromagnetic heating to provide automatic Curie temperature control upon supply of an AC signal thereto. The thermal cutting wire may include a conductive core, an inner ferromagnetic coating disposed about the conductive core, and an outer ferromagnetic coating disposed about the inner ferromagnetic coating. The thermal cutting wire may alternatively or additionally include an exposed outer surface defining a roughness configured to facilitate attenuation during ferromagnetic heating.

    Methods of manufacturing a pair of jaw members of an end-effector assembly for a surgical instrument

    公开(公告)号:US10820940B2

    公开(公告)日:2020-11-03

    申请号:US16674948

    申请日:2019-11-05

    Applicant: COVIDIEN LP

    Inventor: Daniel A. Joseph

    Abstract: A method of manufacturing a matched pair of opposing jaw members of an end-effector assembly includes assembling a first jaw member having a knife channel, assembling a second jaw member having a knife channel, setting a jaw gap and aligning a first sealing plate of the first jaw member and a second sealing plate of the second jaw member in relation to one another by bringing the first jaw member and the second jaw member into clamped engagement with an alignment spacer. The alignment spacer is configured to engage the knife channel of the first jaw member and the knife channel of the second jaw member. The method also includes coupling the first jaw member to the second jaw member.

    Monopolar pencil with integrated bipolar/ligasure tweezers
    27.
    发明授权
    Monopolar pencil with integrated bipolar/ligasure tweezers 有权
    单极铅笔与集成的双极/镊子镊子

    公开(公告)号:US09539049B2

    公开(公告)日:2017-01-10

    申请号:US14692992

    申请日:2015-04-22

    Applicant: COVIDIEN LP

    Abstract: An electrosurgical pencil with integrated tweezers includes-an elongated housing having an open distal end and an actuator operatively associated therewith. First and second jaw members extend distally through the open distal end of the elongated housing and are transitionable between a closed position and an open position upon actuation of an actuator. One or both of the jaw members is configured to treat tissue with monopolar energy and both jaw members are configured to treat tissue with bipolar energy. One or more switches is operably coupled to a controller disposed in the housing and configured to activate the first and second jaw members to treat tissue with monopolar and bipolar energy.

    Abstract translation: 具有集成镊子的电外科手术笔包括:具有开口远端的细长壳体和与其可操作地相关联的致动器。 第一和第二钳口构件通过细长壳体的开放远端向远侧延伸,并且在致动器致动时在闭合位置和打开位置之间可转换。 钳口构件中的一个或两个构造成以单极能量治疗组织,并且两个钳口构件构造成用双极能量治疗组织。 一个或多个开关可操作地耦合到设置在壳体中的控制器,并且被配置为激活第一和第二钳口构件以用单极和双极能量来治疗组织。

    ELECTROSURGICAL INSTRUMENTS, SYSTEMS, AND METHODS INCLUDING USE OF THERMAL CUTTING ELEMENTS

    公开(公告)号:US20230285064A1

    公开(公告)日:2023-09-14

    申请号:US18019932

    申请日:2021-08-11

    Applicant: Covidien LP

    CPC classification number: A61B18/085 A61B18/1445 A61B34/30 A61B2018/00607

    Abstract: An electrosurgical instrument end effector has first and second jaw members each including an electrically conductive tissue-contacting surface. The first and second jaw members are configured to grasp and electrosurgically treat tissue between the tissue-contacting surfaces. A thermal cutting element includes a body portion extending along the tissue-contacting surface of the second jaw member and a distal probe portion extending distally therefrom. The distal probe portion extends distally beyond a distal-most extent of the second jaw member, has a free end distally-spaced from this distal-most extent, and is exposed about the entire outer periphery thereof between the distal-most extent the free end. The body portion of the thermal cutting element is energizable for thermally treating tissue grasped between the tissue-contacting surfaces, while the distal probe portion of the thermal cutting element is energizable for thermally treating tissue positioned distally of the first and second jaw members.

Patent Agency Ranking