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    Electrosurgical instrument reducing current densities at an insulator conductor junction
    7.
    发明授权
    Electrosurgical instrument reducing current densities at an insulator conductor junction 有权
    电外科仪器降低绝缘体导体结处的电流密度

    公开(公告)号：US08267935B2

    公开(公告)日：2012-09-18

    申请号：US11732556

    申请日：2007-04-04

    申请人： Gary M. Couture ,  Robert M. Sharp ,  Craig Weinberg

    发明人： Gary M. Couture ,  Robert M. Sharp ,  Craig Weinberg

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B2017/0088 ,  A61B2017/2945 ,  A61B2018/00083 ,  A61B2018/00107 ,  A61B2018/1432

    摘要： An electrosurgical instrument having opposing end effectors and a handle for effecting movement of the end effectors relative to one another, includes a pair of electrodes each including an electrically conductive surface (e.g., which can be dimensioned for sealing, clamping and/or cutting), an insulating substrate having a first edge, and an insulating layer positioned in a channel formed by the electrically conductive surface within the first edge between the conductive surface and the first edge of the insulating substrate. The insulating layer has a portion proximal to the electrically conductive surface and a portion distal from the electrically conductive surface and a gradient such that the proximal portion has a lower dielectric strength than the distal portion. A coating on one of the pair of electrodes may be disposed in at least partial non-vertical registration with a coating on the opposing one of the pair of electrodes.

    摘要翻译： 具有相对的末端执行器和用于实现端部执行器相对于彼此的移动的手术的电外科器械包括一对电极，每对电极包括导电表面（例如，其尺寸可用于密封，夹紧和/或切割） 具有第一边缘的绝缘基板和位于导电表面与绝缘基板的第一边缘之间的第一边缘内的由导电表面形成的通道中的绝缘层。 绝缘层具有靠近导电表面的部分和远离导电表面的部分，并且梯度使得近端部分具有比远端部分更低的介电强度。 一对电极中的一个上的涂层可以布置成与该对电极中相对的一个电极上的涂层至少部分非垂直配准。

    Asymmetrical electrodes for bipolar vessel sealing
    8.
    发明授权
    Asymmetrical electrodes for bipolar vessel sealing 有权
    用于双极容器密封的不对称电极

    公开(公告)号：US09498278B2

    公开(公告)日：2016-11-22

    申请号：US12877482

    申请日：2010-09-08

    申请人： Gary M. Couture ,  Rebecca Coulson

    发明人： Gary M. Couture ,  Rebecca Coulson

    IPC分类号： A61B18/14 ,  A61B17/00 ,  A61B18/00 ,  A61B18/18

    CPC分类号： A61B18/1445 ,  A61B18/1442 ,  A61B2017/00526 ,  A61B2018/00083 ,  A61B2018/00178 ,  A61B2018/00404 ,  A61B2018/00428 ,  A61B2018/00595 ,  A61B2018/00607 ,  A61B2018/0063 ,  A61B2018/00702 ,  A61B2018/00732 ,  A61B2018/00761 ,  A61B2018/126 ,  A61B2018/1412 ,  A61B2018/1455 ,  A61B2018/1861 ,  A61B2090/3937

    摘要： Bipolar electrosurgical instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes an outer housing, and an inner tissue engaging surface corresponding to the inner tissue engaging surface of the opposing jaw. The instruments includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The jaws include asymmetrical electrodes disposed on the inner tissue engaging surfaces. A first contact region of the electrode has a greater surface area than that of the second contact region. During resection procedures wider electrodes impart improved sealing energy to the patient-side vessel while providing sufficient energy to resected tissue to effect hemostasis.

    摘要翻译： 双极电外科器械在其远端处具有第一和第二相对的钳口构件，其中每个钳口构件包括外壳体和与相对的钳口的内部组织接合表面相对应的内部组织接合表面。 这些仪器包括将钳口构件相对于彼此从第一位置移动的能力，其中钳口构件相对于彼此间隔开地设置到第二位置，其中钳口构件协作以抓住组织。 夹爪包括设置在内部组织接合表面上的不对称电极。 电极的第一接触区域具有比第二接触区域更大的表面积。 在切除过程中，较宽的电极对患者侧血管提供改善的密封能量，同时向切除的组织提供足够的能量以进行止血。

    Bipolar electrosurgical instrument for sealing vessels
    10.
    发明授权
    Bipolar electrosurgical instrument for sealing vessels 有权
    用于密封容器的双极电外科仪器

    公开(公告)号：US07963965B2

    公开(公告)日：2011-06-21

    申请号：US11801618

    申请日：2007-05-10

    申请人： Steven P. Buysse ,  Dale F. Schmaltz ,  Gary M. Couture ,  Lap P. Nguyen ,  Kristin D. Johnson

    发明人： Steven P. Buysse ,  Dale F. Schmaltz ,  Gary M. Couture ,  Lap P. Nguyen ,  Kristin D. Johnson

    IPC分类号： A61B18/12

    CPC分类号： A61B18/1442 ,  A61B2017/2945 ,  A61B2018/00083 ,  A61B2018/0063 ,  A61B2018/1432

    摘要： A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.

    摘要翻译： 双极电外科器械在其钳口上具有对置的密封表面，用于抓住和密封容器和血管组织。 内部和外部仪器构件允许密封表面的弓形运动。 开放的锁箱提供具有侧向支撑的枢轴以保持侧面的对准。 仪器构件上的棘轮在密封过程中在组织上保持恒定的闭合力。 调整每个构件上的柄部分以提供适当的弹簧力以将密封表面保持在一起。 在手术过程中，仪器可用于掌握和夹紧血管组织，并通过钳夹的组织施加双极电外科电流。 在一个实施例中，密封表面是部分绝缘的，以防止当仪器钳口闭合在一起时发生短路。 在另一个实施例中，密封表面可拆卸地安装在夹爪上。