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    Electrosurgical apparatus having a curved distal section
    2.
    发明授权
    Electrosurgical apparatus having a curved distal section 有权
    电外科手术器具有弯曲的远端部分

    公开(公告)号：US07070596B1

    公开(公告)日：2006-07-04

    申请号：US09679394

    申请日：2000-10-03

    申请人： Jean Woloszko ,  Theodore C. Ormsby ,  John J. Quackenbush ,  Brian Martini

    发明人： Jean Woloszko ,  Theodore C. Ormsby ,  John J. Quackenbush ,  Brian Martini

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1482 ,  A61B18/1477 ,  A61B90/11 ,  A61B2017/00261 ,  A61B2018/00011 ,  A61B2018/00029 ,  A61B2018/0044 ,  A61B2018/00744 ,  A61B2018/00791 ,  A61B2018/1425 ,  A61B2018/1472 ,  A61B2218/002 ,  A61B2218/007

    摘要： Apparatus and methods for advancing and retracting a medical instrument within an introducer device, wherein the instrument includes a distal tip, a distal linear portion, a first distal curve, a substantially linear inter-curve portion, and a second proximal curve. The length of the distal linear portion and the angle of the first curve determine the position of the distal tip within a lumen of the introducer device, such that the distal tip occupies a substantially central transverse location within the lumen and the distal tip avoids contact with the introducer device. The length of the inter-curve portion and the angle of the second curve determine deflection of the distal tip from a longitudinal axis of the shaft when the second curve is extended distally beyond a distal end of the introducer device. Also, methods and apparatus for treating an intervertebral disc by ablation of disc tissue. A method of the invention includes positioning at least one active electrode within the intervertebral disc, and applying at least a first high frequency voltage between the active electrode(s) and one or more return electrode(s), wherein the volume of the nucleus pulposus is decreased, pressure exerted by the nucleus pulposus on the annulus fibrosus is reduced, and discogenic pain of a patient is alleviated. In other embodiments, a curved or steerable probe is guided to a specific target site within a disc to be treated, and the disc tissue at the target site is ablated by application of at least a first high frequency voltage between the active electrode(s) and one or more return electrode(s). A method of making an electrosurgical probe is also disclosed.

    摘要翻译： 用于在导引器装置内推进和缩回医疗器械的装置和方法，其中所述器械包括远端尖端，远端线性部分，第一远端曲线，基本上线性的曲线间部分和第二近端曲线。 远端线性部分的长度和第一曲线的角度确定远侧末端在导引器装置的内腔内的位置，使得远侧末端占据内腔内的基本上中心的横向位置，并且远侧尖端避免与 导引器装置。 当第二曲线向远侧延伸超过导引器装置的远端时，曲线间部分的长度和第二曲线的角度确定远侧尖端从轴的纵向轴线的偏转。 另外，通过椎间盘组织消融来治疗椎间盘的方法和装置。 本发明的方法包括将至少一个有效电极定位在椎间盘内，以及在活性电极和一个或多个返回电极之间施加至少第一高频电压，其中髓核的体积 减轻了髓核对纤维环的压力，缓解了患者的椎间盘疼痛。 在其他实施例中，弯曲或可操纵的探针被引导到待治疗的椎间盘内的特定靶部位，并且通过在有源电极之间施加至少第一高频电压来消除目标部位的椎间盘组织， 和一个或多个返回电极。 还公开了一种制造电外科探针的方法。

    Electrosurgical ablation and aspiration apparatus having flow directing feature and methods related thereto
    5.
    发明授权
    Electrosurgical ablation and aspiration apparatus having flow directing feature and methods related thereto 有权
    电外科消融和抽吸装置具有流动特征和与之相关的方法

    公开(公告)号：US06949096B2

    公开(公告)日：2005-09-27

    申请号：US10264308

    申请日：2003-01-21

    申请人： Terry S. Davison ,  Theodore C. Ormsby ,  Jean Woloszko ,  Robert H. Dahla

    发明人： Terry S. Davison ,  Theodore C. Ormsby ,  Jean Woloszko ,  Robert H. Dahla

    IPC分类号： A61B18/14

    CPC分类号： A61B18/14 ,  A61B18/148 ,  A61B2018/00583 ,  A61B2018/1407 ,  A61B2018/1467 ,  A61B2018/1472 ,  A61B2218/007

    摘要： Electrosurgical methods, systems, and apparatus for the controlled ablation of tissue from a target site of a patient. An electrosurgical apparatus of the invention includes an active electrode assembly having an active electrode screen surrounded by a plurality of flow protectors. Each flow protector defines a shielded region of the active electrode screen, each shielded region of the screen characterized by enhanced plasma formation. The active electrode assembly is adapted for removing tissue from a surgical site, and the active electrode screen is adapted for digesting fragments of resected tissue. In one embodiment, the apparatus is particularly suited to simultaneously removing both hard and soft tissue in, or around, a joint.

    摘要翻译： 用于从患者的靶位点受控消融组织的电外科手术方法，系统和装置。 本发明的电外科设备包括一个有源电极组件，它具有由多个流动保护器包围的有源电极屏幕。 每个流动保护器限定有源电极屏幕的屏蔽区域，屏幕的每个屏蔽区域的特征在于增强的等离子体形成。 活性电极组件适于从手术部位去除组织，并且活性电极屏适于消化切除的组织的碎片。 在一个实施例中，该装置特别适用于同时去除关节内或周围的硬组织和软组织。

    Electrosurgical probe having circular electrode array for ablating joint tissue and systems related thereto
    6.
    发明授权
    Electrosurgical probe having circular electrode array for ablating joint tissue and systems related thereto 有权
    具有用于消融关节组织的圆形电极阵列和与其相关的系统的电外科探针

    公开(公告)号：US06991631B2

    公开(公告)日：2006-01-31

    申请号：US10367608

    申请日：2003-02-13

    申请人： Jean Woloszko ,  Paul O. Davison ,  Theodore C. Ormsby

    发明人： Jean Woloszko ,  Paul O. Davison ,  Theodore C. Ormsby

    IPC分类号： A61B18/14

    CPC分类号： A61B18/148 ,  A61B2018/0016 ,  A61B2018/00327 ,  A61B2018/00577 ,  A61B2018/1467 ,  A61B2018/1497 ,  A61B2218/007

    摘要： Electrosurgical methods, systems, and apparatus for the controlled ablation of tissue from a target site, such as a synovial joint, of a patient. An electrosurgical probe of the invention includes a shaft, and a working end having an electrode array comprising an outer circular arrangement of active electrode terminals and an inner circular arrangement of active electrode terminals. The electrode array is adapted for the controlled ablation of hard tissue, such as meniscus tissue. The working end of the probe is curved to facilitate access to both medial meniscus and lateral meniscus from a portal of 1 cm. or less.

    摘要翻译： 用于从患者的目标部位如滑膜关节受控消融组织的电外科手术方法，系统和装置。 本发明的电外科探头包括轴和具有电极阵列的工作端，该电极阵列包括有源电极端子的外圆形布置和有源电极端子的内圆形布置。 电极阵列适用于硬组织如半月板组织的受控消融。 探头的工作端是弯曲的，以便于从1厘米的入口进入内侧半月板和外侧半月板。 或更少。