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    Microwave monitoring of tissue sealing
    3.
    发明公开
    Microwave monitoring of tissue sealing 审中-公开
    Überwachungvon Gewebeversiegelung mittels Mikrowellen

    公开(公告)号：EP2556794A1

    公开(公告)日：2013-02-13

    申请号：EP12179628.8

    申请日：2012-08-08

    申请人： Covidien LP

    发明人： Keller, Craig A.

    IPC分类号： A61B5/05 ,  A61B18/18 ,  A61N5/04 ,  A61B18/14

    CPC分类号： A61B18/1815 ,  A61B5/0507 ,  A61B5/4836 ,  A61B18/1206 ,  A61B18/1445 ,  A61B2018/0063 ,  A61B2018/00642 ,  A61B2018/00702 ,  A61B2018/00785 ,  A61B2018/00994 ,  A61B2018/1861 ,  A61B2018/1869

    摘要： A system for monitoring the target tissue during a tissue sealing procedure is disclosed. The system includes a forceps having opposing jaw members movable from a first position in spaced relation relative to one another to at least one subsequent position wherein the jaw members cooperate to grasp the tissue therebetween. Each of the jaw members includes a sealing member. The system also includes a generator coupled to the sealing members so that therapeutic energy is delivered to the target tissue. The generator includes an output stage configured to generate therapeutic energy and a microwave detector configured to measure reflected and/or absorbed microwave signals. The monitored microwave signals may be either the therapeutic energy signal or a separate non-therapeutic microwave monitoring signal. The generator also includes a controller operatively coupled to the microwave detector. The controller is configured to determine the state of the tissue based on the reflected and/or absorbed microwave signals and to control the delivery of therapeutic energy from the generator to tissue based on the microwave measurements.

    摘要翻译： 公开了一种用于在组织密封过程期间监测目标组织的系统。 该系统包括具有相对的钳口构件的镊子，该钳子构件可相对于彼此间隔开地从第一位置移动到至少一个随后的位置，其中钳口构件协作以抓住其间的组织。 每个钳口构件包括密封构件。 该系统还包括耦合到密封构件的发生器，使得治疗能量被输送到目标组织。 发生器包括被配置为产生治疗能量的输出级和被配置为测量反射和/或吸收的微波信号的微波检测器。 所监测的微波信号可以是治疗能量信号或单独的非治疗微波监测信号。 发电机还包括可操作地耦合到微波检测器的控制器。 控制器被配置为基于反射和/或吸收的微波信号来确定组织的状态，并且基于微波测量来控制从发生器到组织的治疗能量的递送。

    Electrosurgical devices including transverse electrode configurations
    4.
    发明公开
    Electrosurgical devices including transverse electrode configurations 审中-公开
    具有横向电极结构电外科装置

    公开(公告)号：EP2926754A3

    公开(公告)日：2016-01-06

    申请号：EP14200408.4

    申请日：2014-12-29

    申请人： Covidien LP

    发明人： Keller, Craig A. ,  Lessard, Guillaume ,  Ferrell, Richard M.

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1445 ,  A61B18/1442 ,  A61B2018/0063 ,  A61B2018/1455 ,  A61B2018/146 ,  A61B2018/1467

    摘要： An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions. The jaw members define opposed tissue-contacting surfaces that cooperate to define a tissue grasping area within which tissue is grasped when the jaw members are moved to the approximated position. At least one of the jaw members includes an interior electrode and at least one of the jaw members includes first and second exterior electrodes. The interior and exterior electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue. The interior electrodes are disposed interiorly of outer bounds of the tissue grasping area, while the exterior electrodes are disposed exteriorly. As a result, upon conduction of energy through tissue grasped within the tissue grasping area, tissue disposed adjacent the exterior electrodes is boiled before boiling of tissue disposed adjacent the interior electrodes.

    Electrosurgical devices including transverse electrode configurations
    5.
    发明公开
    Electrosurgical devices including transverse electrode configurations 审中-公开
    Elektrochirurgische Vorrichtungen mit transversalen Elektrodenkonfigurationen

    公开(公告)号：EP2926754A2

    公开(公告)日：2015-10-07

    申请号：EP14200408.4

    申请日：2014-12-29

    申请人： Covidien LP

    发明人： Keller, Craig A. ,  Lessard, Guillaume ,  Ferrell, Richard M.

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1445 ,  A61B18/1442 ,  A61B2018/0063 ,  A61B2018/1455 ,  A61B2018/146 ,  A61B2018/1467

    摘要： An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions. The jaw members define opposed tissue-contacting surfaces that cooperate to define a tissue grasping area within which tissue is grasped when the jaw members are moved to the approximated position. At least one of the jaw members includes an interior electrode and at least one of the jaw members includes first and second exterior electrodes. The interior and exterior electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue. The interior electrodes are disposed interiorly of outer bounds of the tissue grasping area, while the exterior electrodes are disposed exteriorly. As a result, upon conduction of energy through tissue grasped within the tissue grasping area, tissue disposed adjacent the exterior electrodes is boiled before boiling of tissue disposed adjacent the interior electrodes.

    摘要翻译： 用于电外科装置的端部执行器组件包括可在间隔开和近似位置之间移动的第一和第二钳口构件。 钳口构件限定相对的组织接触表面，其协作以限定组织夹持区域，当夹钳构件移动到近似位置时，组织抓握区域被抓握。 钳口构件中的至少一个包括内部电极，并且至少一个钳口构件包括第一和第二外部电极。 内部和外部电极被配置为通过在组织夹持区域内抓握的组织传导能量以密封组织。 内部电极设置在组织抓握区域的外边界的内部，而外部电极被设置在外部。 结果，在通过在组织夹持区域内抓握的组织传导能量之后，在邻近内部电极设置的组织沸腾之前，将邻近外部电极设置的组织煮沸。

    Systems and methods for arc detection and drag adjustment
    6.
    发明公开
    Systems and methods for arc detection and drag adjustment 有权
    用于电弧检测和张力调节系统

    公开(公告)号：EP2777581A1

    公开(公告)日：2014-09-17

    申请号：EP14159837.5

    申请日：2014-03-14

    申请人： Covidien LP

    发明人： Wham, Robert H. ,  Gilbert, James A. ,  Keller, Craig A. ,  Roberts, Brian L.

    IPC分类号： A61B18/12 ,  A61B18/00

    CPC分类号： A61B18/1206 ,  A61B18/1402 ,  A61B2018/00702 ,  A61B2018/00755 ,  A61B2018/00779 ,  A61B2018/00827 ,  A61B2018/00869 ,  A61B2018/00892 ,  A61B2018/1213

    摘要： The systems and methods of the present disclosure detect arcing patterns or impedance changes and adjust the level of electrosurgical energy provided to tissue based on the detected arcing patterns or impedance changes. In embodiments, the drag force imposed on the electrode or blade of an electrosurgical instrument may be controlled by adjusting the level of electrosurgical energy based on the detected arcing patterns or impedance changes. The arcing patterns or impedance changes may be detected by sensing voltage and/or current waveforms of the electrosurgical energy and analyzing the sensed voltage and/or current waveforms. The current and/or voltage waveform analysis may involve calculating impedance based on the sensed voltage and current waveforms and calculating changes in impedance over time. The waveform analysis may involve detecting harmonic distortion using FFTs, DFTs, Goertzel filters, polyphase demodulation techniques, and/or bandpass filters. The waveform analysis may involve determining a normalized difference or the average phase difference between the voltage and current waveforms.