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    ELECTROSURGICAL INSTRUMENTS FOR CONTROLLING THERMAL DAMAGE
    1.
    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

    Applicant: Covidien LP

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

    IPC: A61B18/14 ,  A61B18/00

    Abstract: 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.

    Electrosurgical instruments for controlling thermal damage
    2.
    发明授权
    Electrosurgical instruments for controlling thermal damage 有权

    公开(公告)号：US11224478B2

    公开(公告)日：2022-01-18

    申请号：US15742717

    申请日：2015-07-17

    Applicant: COVIDIEN LP

    Inventor： Weijiang Ding ,  Jianjiang Chen ,  Daniel A. Joseph ,  Kai Liu ,  William H. Nau, Jr. ,  Arlen K. Ward ,  William Ross Whitney

    IPC: A61B18/14 ,  A61B18/00

    Abstract: An end effector assembly (114) includes a first jaw member (114a) having a first tissue contact surface (122) and a second jaw member (114b) having a second tissue contact surface (122). The second jaw member (114b) is pivotally coupled to the first jaw member (114a). The tissue contact surfaces (122) may include raised steps (122b) that define an exhaust channel (124). A longitudinally extending knife slot (214) may be defined in one or both of the tissue contact surfaces (122). One or more exhaust slots (216), which may be defined in one or both of the tissue contact surfaces (122), are in communication with the knife slot (214). The exhaust channel (124) and the exhaust slots (216) direct fluid away from the jaw members (114a, 114b) to minimize thermal damage risks associated with tissue sealing.

    System and method for catheter-based plasma coagulation
    3.
    发明授权
    System and method for catheter-based plasma coagulation 有权

    公开(公告)号：US10524849B2

    公开(公告)日：2020-01-07

    申请号：US15645522

    申请日：2017-07-10

    Applicant: COVIDIEN LP

    Inventor： Arlen K. Ward ,  Duane E. Kerr

    IPC: A61B18/04 ,  A61B18/00

    Abstract: A plasma instrument includes an elongated body defining a lumen therethrough, the lumen being in fluid communication with an ionizable media source; and a plasma applicator coupled to a distal portion of the elongated body. The plasma applicator includes: an active electrode configured to couple to an active terminal of a generator; and a corona electrode configured to couple to a return terminal of a generator. The plasma instrument also includes a switching element coupled to the corona electrode, the switching element configured to control at least one of resistivity or connectivity of the corona electrode to a generator.

    BIPOLAR ELECTROSURGICAL INSTRUMENT WITH MOVABLE ELECTRODE AND RELATED SYSTEMS AND METHODS
    8.
    发明申请
    BIPOLAR ELECTROSURGICAL INSTRUMENT WITH MOVABLE ELECTRODE AND RELATED SYSTEMS AND METHODS 有权

    公开(公告)号：US20220151682A1

    公开(公告)日：2022-05-19

    申请号：US17592648

    申请日：2022-02-04

    Applicant: Covidien LP

    Inventor： Joe D. Sartor ,  David N. Heard ,  Arlen K. Ward

    IPC: A61B18/14

    Abstract: An electrosurgical device is provided that includes a handset having a shaft extending therefrom, a pair of active electrodes at a distal end of the shaft, and a movable, electrically floating electrode selectively positionable between the active electrodes. The floating electrode, when positioned to contact tissue between the active electrodes, modifies the electrosurgical current flows through tissue. The resultant modified current flows enables a surgeon to more effectively to control tissue desiccation by focusing electrosurgical energy toward targeted tissue and by reducing peripheral current flows. Embodiments are provided wherein the active electrodes include cooling provisions. Related electrosurgical systems and method of use are also provided.

    MODELING A COLLAPSED LUNG USING CT DATA
    9.
    发明申请
    MODELING A COLLAPSED LUNG USING CT DATA 有权

    公开(公告)号：US20220015831A1

    公开(公告)日：2022-01-20

    申请号：US17385522

    申请日：2021-07-26

    Applicant: Covidien LP

    Inventor： Joe D. Sartor ,  Arlen K. Ward ,  Francesca Rossetto ,  Ramesh Raghupathy ,  Srikara V. Peelukhana

    IPC: A61B34/10 ,  A61B5/08 ,  A61B6/00 ,  A61B5/00 ,  A61B1/05 ,  A61B1/267 ,  A61B1/00 ,  G06T17/20 ,  G06T7/00 ,  A61B6/03

    Abstract: A method of modeling lungs of a patient includes acquiring computed tomography data of a patient's lungs, storing a software application within a memory associated with a computer, the computer having a processor configured to execute the software application, executing the software application to differentiate tissue located within the patient's lung using the acquired CT data, generate a 3-D model of the patient's lungs based on the acquired CT data and the differentiated tissue, apply a material property to each tissue of the differentiated tissue within the generated 3-D model, generate a mesh of the 3-D model of the patient's lungs, calculate a displacement of the patient's lungs in a collapsed state based on the material property applied to the differentiated tissue and the generated mesh of the generated 3-D model, and display a collapsed lung model of the patient's lungs based on the calculated displacement of the patient's lungs.

    System configured to provide controlled depth of hemostasis
    10.
    发明授权
    System configured to provide controlled depth of hemostasis 有权

    公开(公告)号：US11219481B2

    公开(公告)日：2022-01-11

    申请号：US15994729

    申请日：2018-05-31

    Applicant: COVIDIEN LP

    Inventor： Joe D. Sartor ,  Arlen K. Ward

    IPC: A61B18/12 ,  A61B18/14 ,  A61B18/18 ,  A61B18/00 ,  A61B90/00

    Abstract: An electrosurgical device is provided and includes a handset having a shaft extending therefrom. The electrosurgical device includes a pair of electrodes disposed at a distal end of the shaft. One or more sensors are in operable communication with the pair of electrodes to detect a pressure applied thereto. The amount of electrosurgical energy that is transmitted to the pair of electrodes is proportional to the amount of pressure that is applied to the pair of electrodes and detected by the sensor.

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