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    Systems and methods for detecting opening of the jaws of a vessel sealer mid-seal
    1.
    发明授权
    Systems and methods for detecting opening of the jaws of a vessel sealer mid-seal 有权

    公开(公告)号：US10512499B2

    公开(公告)日：2019-12-24

    申请号：US15173023

    申请日：2016-06-03

    Applicant: COVIDIEN LP

    Inventor： Jennifer R. McHenry ,  Anthony D. Ricke

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

    Abstract: Disclosed are systems, devices, and methods for operating an electrosurgical generator, comprising an RF output stage configured to output an electrosurgical waveform through at least one pair of electrodes, sensing circuitry configured to measure an impedance between the at least one pair of electrodes configured to grasp tissue, and a controller configured to determine whether the impedance of the tissue disposed between the at least one pair of electrodes exceeds an impedance threshold, determine whether a change in the impedance is greater than an upper change in impedance threshold, and output an alarm indicative of the at least one pair of electrodes being at least partially open based on at least one of the impedance exceeding the impedance threshold or the change in impedance exceeding the change in impedance threshold.

    Systems and methods for controlling power in an electrosurgical generator
    2.
    发明授权
    Systems and methods for controlling power in an electrosurgical generator 有权

    公开(公告)号：US11045248B2

    公开(公告)日：2021-06-29

    申请号：US17124660

    申请日：2020-12-17

    Applicant: Covidien LP

    Inventor： Jennifer R. McHenry ,  Alexander M. Waskiewicz ,  Anthony D. Ricke ,  Rebecca J. Coulson ,  Jessica E. C. Olson

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

    Abstract: The electrosurgical systems and corresponding methods of the present disclosure involve an electrosurgical generator, sensing circuitry, and a controller. The electrosurgical generator includes a radio frequency (RF) output stage that supplies power to tissue. The sensing circuitry measures impedance of tissue. The controller controls the power supplied from the RF output stage to track a nonlinear power curve until the power supplied from the RF output stage has reached a predetermined peak power of the nonlinear power curve. The controller further determines whether a tissue reaction has occurred based on impedance measured by the sensing circuitry and controls the power supplied from the RF output stage during a cooling phase if the controller determines that a tissue reaction has occurred. The controller may further control the power supplied from the RF output stage to track a linear power curve.

    Systems and methods for controlling power in an electrosurgical generator
    3.
    发明授权
    Systems and methods for controlling power in an electrosurgical generator 有权

    公开(公告)号：US11129667B2

    公开(公告)日：2021-09-28

    申请号：US16847778

    申请日：2020-04-14

    Applicant: Covidien LP

    Inventor： Jennifer R. McHenry ,  Alexander M. Waskiewicz ,  Anthony D. Ricke ,  Rebecca J. Coulson ,  Jessica E. C. Olson

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

    Abstract: The electrosurgical systems and corresponding methods of the present disclosure involve an electrosurgical generator, sensing circuitry, and a controller. The electrosurgical generator includes a radio frequency (RF) output stage that supplies power to tissue. The sensing circuitry measures impedance of tissue. The controller controls the power supplied from the RF output stage to track a nonlinear power curve until the power supplied from the RF output stage has reached a predetermined peak power of the nonlinear power curve. The controller further determines whether a tissue reaction has occurred based on impedance measured by the sensing circuitry and controls the power supplied from the RF output stage during a cooling phase if the controller determines that a tissue reaction has occurred. The controller may further control the power supplied from the RF output stage to track a linear power curve.

    Bipolar surgical instrument
    5.
    发明授权
    Bipolar surgical instrument 有权

    公开(公告)号：US10966779B2

    公开(公告)日：2021-04-06

    申请号：US14904649

    申请日：2013-08-07

    Applicant: COVIDIEN LP

    Inventor： Keir Hart ,  Rebecca J. Coulson ,  Gary M. Couture ,  Geneva Ladtkow ,  Weng-Kai K. Lee ,  Kenneth E. Netzel ,  Prakash Manley ,  Arlen J. Reschke ,  Anthony D. Ricke ,  Jeffrey R. Townsend

    IPC: A61B18/14 ,  A61B18/00 ,  A61B18/12 ,  A61B17/00

    Abstract: A bipolar forceps includes a mechanical forceps including first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot. A disposable housing is configured to releasably couple to at least one of the shafts and an electrode assembly has electrodes releasably coupleable to the jaw members and adapted to connect to a source of electrosurgical energy to allow selective conduction of electrosurgical energy through tissue held therebetween to effect a tissue seal. An electrically conductive cutting element is disposed on at least one of the electrodes and is adapted to connect to the source of electrosurgical energy to allow selective conduction of electrosurgical energy through tissue held between the electrodes to effect a tissue cut.

    SYSTEMS AND METHODS FOR CONTROLLING POWER IN AN ELECTROSURGICAL GENERATOR
    8.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING POWER IN AN ELECTROSURGICAL GENERATOR 有权

    公开(公告)号：US20220008114A1

    公开(公告)日：2022-01-13

    申请号：US17486185

    申请日：2021-09-27

    Applicant: Covidien LP

    Inventor： Jennifer R. McHenry ,  Alexander M. Waskiewicz ,  Anthony D. Ricke ,  Rebecca J. Coulson ,  Jessica E.C. Olson

    IPC: A61B18/12 ,  A61B18/14

    Abstract: The electrosurgical systems and corresponding methods of the present disclosure involve an electrosurgical generator, sensing circuitry, and a controller. The electrosurgical generator includes a radio frequency (RF) output stage that supplies power to tissue. The sensing circuitry measures impedance of tissue. The controller controls the power supplied from the RF output stage to track a nonlinear power curve until the power supplied from the RF output stage has reached a predetermined peak power of the nonlinear power curve. The controller further determines whether a tissue reaction has occurred based on impedance measured by the sensing circuitry and controls the power supplied from the RF output stage during a cooling phase if the controller determines that a tissue reaction has occurred. The controller may further control the power supplied from the RF output stage to track a linear power curve.

    SYSTEMS AND METHODS FOR CONTROLLING POWER IN AN ELECTROSURGICAL GENERATOR
    9.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING POWER IN AN ELECTROSURGICAL GENERATOR 有权

    公开(公告)号：US20210100603A1

    公开(公告)日：2021-04-08

    申请号：US17124660

    申请日：2020-12-17

    Applicant: Covidien LP

    Inventor： Jennifer R. McHenry ,  Alexander M. Waskiewicz ,  Anthony D. Ricke ,  Rebecca J. Coulson ,  Jessica E.C. Olson

    IPC: A61B18/12 ,  A61B18/14

    Abstract: The electrosurgical systems and corresponding methods of the present disclosure involve an electrosurgical generator, sensing circuitry, and a controller. The electrosurgical generator includes a radio frequency (RF) output stage that supplies power to tissue. The sensing circuitry measures impedance of tissue. The controller controls the power supplied from the RF output stage to track a nonlinear power curve until the power supplied from the RF output stage has reached a predetermined peak power of the nonlinear power curve. The controller further determines whether a tissue reaction has occurred based on impedance measured by the sensing circuitry and controls the power supplied from the RF output stage during a cooling phase if the controller determines that a tissue reaction has occurred. The controller may further control the power supplied from the RF output stage to track a linear power curve.

    SYSTEMS AND METHODS FOR CONTROLLING POWER IN AN ELECTROSURGICAL GENERATOR
    10.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING POWER IN AN ELECTROSURGICAL GENERATOR 审中-公开

    公开(公告)号：US20200237427A1

    公开(公告)日：2020-07-30

    申请号：US16847778

    申请日：2020-04-14

    Applicant: Covidien LP

    Inventor： Jennifer R. McHenry ,  Alexander M. Waskiewicz ,  Anthony D. Ricke ,  Rebecca J. Coulson ,  Jessica E.C. Olson

    IPC: A61B18/12 ,  A61B18/14

    Abstract: The electrosurgical systems and corresponding methods of the present disclosure involve an electrosurgical generator, sensing circuitry, and a controller. The electrosurgical generator includes a radio frequency (RF) output stage that supplies power to tissue. The sensing circuitry measures impedance of tissue. The controller controls the power supplied from the RF output stage to track a nonlinear power curve until the power supplied from the RF output stage has reached a predetermined peak power of the nonlinear power curve. The controller further determines whether a tissue reaction has occurred based on impedance measured by the sensing circuitry and controls the power supplied from the RF output stage during a cooling phase if the controller determines that a tissue reaction has occurred. The controller may further control the power supplied from the RF output stage to track a linear power curve.

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