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    ELECTROSURGICAL INSTRUMENT EMPLOYING PRESSURE-VARIATION ELECTRODES
    73.
    发明申请
    ELECTROSURGICAL INSTRUMENT EMPLOYING PRESSURE-VARIATION ELECTRODES 有权
    使用压力变化电极的电磁仪器

    公开(公告)号：US20110306964A1

    公开(公告)日：2011-12-15

    申请号：US12797252

    申请日：2010-06-09

    申请人： Foster B. Stulen ,  Jeffrey S. Swayze ,  Prasanna Malaviya ,  Gregory W. Johnson ,  Jason L. Harris ,  Paul Guerra

    发明人： Foster B. Stulen ,  Jeffrey S. Swayze ,  Prasanna Malaviya ,  Gregory W. Johnson ,  Jason L. Harris ,  Paul Guerra

    IPC分类号： A61B18/16

    CPC分类号： A61B18/1445 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/0063 ,  A61B2018/1455

    摘要： A surgical instrument can comprise a handle, a first conductor, a second conductor, and an end effector. The end effector can comprise a first jaw, a second jaw, wherein the first jaw is movable relative to the second jaw in order to capture tissue intermediate the first jaw and the second jaw, a first electrode electrically coupled with the first conductor, and a second electrode electrically coupled with the second conductor, wherein the second electrode is comprised of a material configured to have a first electrical resistance when a first pressure is applied to the material, and wherein the material is configured to have a second electrical resistance when a second pressure is applied to the material. In various circumstances, the material can be configured such that, once the applied pressure has exceeded a switching pressure, the resistance of the material can switch from the first resistance to the second resistance.

    摘要翻译： 手术器械可以包括手柄，第一导体，第二导​​体和末端执行器。 末端执行器可以包括第一钳口和第二钳口，其中第一钳口相对于第二钳口可移动，以便捕获第一钳夹和第二钳夹中间的组织，与第一导体电耦合的第一电极和 所述第二电极与所述第二导体电耦合，其中所述第二电极包括被配置为当向所述材料施加第一压力时具有第一电阻的材料，并且其中所述材料被配置为当第二电极具有第二电阻时， 对材料施加压力。 在各种情况下，材料可以被配置为使得一旦施加的压力超过开关压力，材料的电阻就可以从第一阻力转换到第二阻力。

    SURGICAL INSTRUMENTS FOR TENSIONING TISSUE
    78.
    发明申请
    SURGICAL INSTRUMENTS FOR TENSIONING TISSUE 有权
    张力组织外科手术器械

    公开(公告)号：US20130023875A1

    公开(公告)日：2013-01-24

    申请号：US13189169

    申请日：2011-07-22

    申请人： Jason L. Harris ,  Jeffrey S. Swayze ,  Foster B. Stulen ,  Gregory W. Johnson ,  Prasanna Malaviya ,  Paul Guerra

    发明人： Jason L. Harris ,  Jeffrey S. Swayze ,  Foster B. Stulen ,  Gregory W. Johnson ,  Prasanna Malaviya ,  Paul Guerra

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1447 ,  A61B18/1445 ,  A61B2018/00184 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/00642 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00815 ,  A61B2018/1455

    摘要： A surgical instrument can comprise an end effector including a plurality of jaws which can be configured to compress tissue therebetween. The end effector can further comprise one or more electrodes which can be configured to direct a flow of electrical current through the tissue in order to heat the tissue and denature collagen and/or other proteins within the tissue. As the tissue cools, the collagen and/or other proteins can renature and thereby seal the tissue. In certain embodiments, the end effector of the surgical instrument can further comprise movable portions which can apply a tension force to the tissue surrounding the tissue being sealed. In various circumstances, the tension force can reduce the over-denaturation, shrinkage, and/or other damage to the surrounding tissue caused by heat flowing from the end effector during the sealing process.

    摘要翻译： 外科器械可以包括端部执行器，其包括多个钳口，其可被配置为在它们之间压缩组织。 端部执行器还可以包括一个或多个电极，其可被配置为引导电流流过组织，以加热组织并使组织内的胶原和/或其它蛋白质变性。 当组织冷却时，胶原蛋白和/或其它蛋白质可以复制并由此密封组织。 在某些实施例中，外科器械的末端执行器可以进一步包括能够对被密封的组织周围的组织施加张力的可动部分。 在各种情况下，张紧力可以减少在密封过程期间从端部执行器流动的热引起的周围组织的过度变性，收缩和/或其它损伤。