Systems and methods for controlling power in an electrosurgical generator

    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

    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.

    Dynamic and static bipolar electrical sealing and cutting device
    2.
    发明授权
    Dynamic and static bipolar electrical sealing and cutting device 有权
    动态和静态双极电气密封和切割装置

    公开(公告)号:US09259263B2

    公开(公告)日:2016-02-16

    申请号:US14178540

    申请日:2014-02-12

    Applicant: COVIDIEN LP

    Abstract: An end effector assembly includes opposed jaws moveable from an open to a closed position for grasping tissue therebetween. Each jaw includes an electrically conductive surface adapted to conduct electrosurgical energy through tissue disposed between the jaws. A static bipolar cutting portion including at least one electrically conductive cutting element and at least one insulating element having a first configuration is disposed on at least one of the jaws. The static cutting portion is configured to electrically cut tissue disposed between the jaws upon activation of the cutting element and at least one of an opposing sealing surface and an opposing cutting element. A dynamic cutting portion including at least one electrically conductive cutting element and at least one insulating element having a second configuration is disposed on at least one of the jaws. The dynamic cutting portion electrically transects tissue during movement relative to tissue.

    Abstract translation: 末端执行器组件包括可从打开位置移动到关闭位置的相对的爪,用于在其间夹持组织。 每个钳口包括适于通过设置在钳口之间的组织进行电外科能量的导电表面。 包括至少一个导电切割元件和至少一个具有第一构造的绝缘元件的静态双极切割部分设置在至少一个夹爪上。 静态切割部分构造成在激活切割元件和相对的密封表面和相对的切割元件中的至少一个时,电气地切割设置在夹爪之间的纸巾。 包括至少一个导电切割元件的动态切割部分和具有第二构造的至少一个绝缘元件设置在至少一个夹爪上。 动态切割部分相对于组织在移动期间电穿透组织。

    Systems and methods for controlling power in an electrosurgical generator

    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

    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.

    Surgical forceps
    6.
    发明授权
    Surgical forceps 有权
    手术镊子

    公开(公告)号:US09168088B2

    公开(公告)日:2015-10-27

    申请号:US14627277

    申请日:2015-02-20

    Applicant: COVIDIEN LP

    Abstract: An end effector of a forceps includes first and second jaw members movable between spaced-apart and approximated positions for grasping tissue. Each jaw member includes a tissue sealing plate that is selectively energizable. The tissue sealing plates are configured to conduct energy therebetween and though tissue to seal tissue. A knife includes a distal surface and an upper surface. The knife is selectively translatable between a retracted position and an extended position wherein the knife extends between the jaw members. The distal surface is configured for dynamic tissue cutting upon translation of the knife from the retracted to the extended position. The upper surface is configured for static tissue cutting with the knife in the extended position. The knife is selectively energizable and is configured to conduct energy between the knife and one or both of the tissue sealing plates and through tissue to electrically cut tissue.

    Abstract translation: 镊子的末端执行器包括第一和第二钳口构件,其在间隔开和近似的位置之间移动,用于抓握组织。 每个钳口构件包括可选择性地通电的组织密封板。 组织密封板被构造成在两者之间引导能量,并且尽管组织密封组织。 刀包括远端表面和上表面。 刀可以在缩回位置和延伸位置之间选择性地平移,其中刀在夹爪构件之间延伸。 远侧表面构造成用于在将刀从缩回位置延伸到延伸位置时进行动态组织切割。 上表面构造成用于在延伸位置的刀的静态组织切割。 刀被选择性地激励,并且被配置为在刀与组织密封板中的一个或两个并且通过组织之间传导能量以电切割组织。

    SYSTEMS AND METHODS FOR CONTROLLING POWER IN AN ELECTROSURGICAL GENERATOR

    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

    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

    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

    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

    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

    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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