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    Electrosurgical instrument having a predetermined heat profile
    1.
    发明授权
    Electrosurgical instrument having a predetermined heat profile 失效
    具有预定热分布的电外科器械

    公开(公告)号：US06757565B2

    公开(公告)日：2004-06-29

    申请号：US10071470

    申请日：2002-02-08

    申请人： Hugh R. Sharkey ,  John E. Ashley ,  Kobi Iki

    发明人： Hugh R. Sharkey ,  John E. Ashley ,  Kobi Iki

    IPC分类号： A61F712

    CPC分类号： A61B18/148

    摘要： An electrosurgical instrument is provided, having a holding formation, an elongated probe, an electrode, and a conductor. The elongated probe is connected to and extends from the holding formation. The electrode is located on an end of the elongated probe opposing the holding formation, and has a leading edge and a face. The electrode is locatable so that the face is substantially in a horizontal plane and the leading edge is above the horizontal plane. The conductor extends along the elongated probe and has a portion connected to the electrode to provide RF power thereto. The electrode creates a temperature profile with a temperature adjacent to the leading edge being higher than a temperature adjacent to the face.

    摘要翻译： 提供了一种具有保持结构，细长探针，电极和导体的电外科器械。 细长的探针连接到保持结构并从保持结构延伸。 电极位于与保持结构相对的细长探针的端部上，并且具有前缘和面。 电极是可定位的，使得所述面基本上处于水平面并且前缘在水平面之上。 导体沿着细长的探针延伸并且具有连接到电极的部分以向其提供RF功率。 电极产生温度曲线，其中与前缘相邻的温度高于与面相邻的温度。

    Electrosurgical instrument having a chamber to volatize a liquid
    3.
    发明授权
    Electrosurgical instrument having a chamber to volatize a liquid 有权
    电外科器械具有使液体挥发的室

    公开(公告)号：US06699244B2

    公开(公告)日：2004-03-02

    申请号：US10124954

    申请日：2002-04-17

    申请人： J. Remberto Carranza ,  Hugh R. Sharkey ,  John E. Ashley ,  Gary S. Fanton

    发明人： J. Remberto Carranza ,  Hugh R. Sharkey ,  John E. Ashley ,  Gary S. Fanton

    IPC分类号： A61B1814

    CPC分类号： A61B18/148 ,  A61B18/1482 ,  A61B18/1492 ,  A61B2017/320008 ,  A61B2018/00434 ,  A61B2018/00625 ,  A61B2018/00654 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/1472 ,  A61B2218/002 ,  A61N1/06 ,  A61N1/40

    摘要： An electrosurgical instrument is provided which includes a holding formation, a probe shaft, an electric conductor, and a probe tip. The probe shaft is secured to the holding formation and has an elongated section extending therefrom. The electric conductor extends along the elongated section. The probe tip is located on a distal end of the probe shaft opposing the holding formation. The probe tip defines a volatization chamber with a mouth out of the probe tip. The probe tip includes an electrode, to which RF current is provided through the electric conductor. The electrode heats an area adjacent to the probe tip. The electrode also heats a liquid in the first volatization chamber to evaporate the liquid into a vapor pocket that ejects from the first volatization chamber through the mouth out of the probe tip. A pump effect is created so that the liquid maintains the probe tip at a more stable temperature.

    摘要翻译： 提供了一种电外科器械，其包括保持结构，探针轴，电导体和探针尖端。 探头轴固定在保持结构上，并具有从其延伸的细长部分。 电导体沿着细长部分延伸。 探针尖端位于与保持结构相对的探针轴的远端上。 探针尖端限定了具有探针尖端的口的挥发室。 探针尖端包括电极，通过电导体提供RF电流。 电极加热与探针尖端相邻的区域。 电极还加热第一挥发室中的液体以将液体蒸发成从第一挥发室通过探针尖端喷出的蒸气袋。 产生泵效应，使得液体将探针尖端保持在更稳定的温度。

    Method and apparatus for applying thermal energy to tissue asymmetrically
    10.
    发明授权
    Method and apparatus for applying thermal energy to tissue asymmetrically 失效
    将热能不对称地施加到组织的方法和装置

    公开(公告)号：US06176857B1

    公开(公告)日：2001-01-23

    申请号：US09158320

    申请日：1998-09-22

    申请人： John E. Ashley

    发明人： John E. Ashley

    IPC分类号： A61B1804

    CPC分类号： A61B18/08 ,  A61B18/1482 ,  A61B2018/00023 ,  A61B2018/00029 ,  A61B2018/00047 ,  A61B2018/00821

    摘要： Systems and methods are described for treating tissue with thermal energy while minimizing the amount of thermal energy to which adjacent tissue is exposed. A surgical instrument for delivering thermal energy to a section of tissue during percutaneous surgery, includes: an elongated shaft having a proximal end and a distal end; and a split tip electrode coupled to the distal end, the split tip electrode i) including a first component and a second component coupled to the first component, and ii) defining a principle axis. The thermal energy is delivered to the section of tissue so as to heat the section of tissue asymmetrically with regard to the principle axis of the split tip electrode. The systems and methods provide advantages in that thermal energy can be directed to one side of the split tip so that a first of two juxtaposed areas of a surgical site can be heated while a second of the two juxtaposed layers is substantially not heated. In alternate embodiments a portion of the site may be actively cooled while an adjacent portion of the site may be actively cooled.

    摘要翻译： 描述了用热处理组织同时最小化相邻组织暴露的热能量的系统和方法。 用于在经皮手术期间将热能递送到组织的一部分的手术器械包括：具有近端和远端的细长轴; 以及联接到所述远端的分离尖端电极，所述分离尖端电极i）包括耦合到所述第一部件的第一部件和第二部件，以及ii）限定主轴线。 将热能输送到组织的部分，以便相对于分裂尖端电极的主轴线不对称地加热组织的部分。 该系统和方法提供的优点在于，热能可以被引导到分裂尖端的一侧，使得可以加热手术部位的两个并置的区域中的第一个，而两个并置的层中的第二个基本上不被加热。 在替代实施例中，站点的一部分可以被主动冷却，同时站点的相邻部分可以被主动冷却。