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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。

    Electrically tunable tissue ablation system and method
    8.
    发明授权
    Electrically tunable tissue ablation system and method 有权
    电可调组织消融系统及方法

    公开(公告)号：US09326819B2

    公开(公告)日：2016-05-03

    申请号：US12424274

    申请日：2009-04-15

    申请人： Theodore C. Ormsby ,  Russell Chung ,  George Leung ,  Gwo Jenn Shen

    发明人： Theodore C. Ormsby ,  Russell Chung ,  George Leung ,  Gwo Jenn Shen

    IPC分类号： A61B18/18

    CPC分类号： A61B18/18 ,  A61B18/1815 ,  A61B2018/1869

    摘要： An ablation system which transmits radio frequency (RF) energy for the ablation of biological tissues has a transmission line and an RF antenna disposed at the distal portion of the transmission line. An RF signal generator supplies RF energy to the proximal end of the cable for transmission to the antenna, and an electrically tunable transformer is connected between the signal generator and the antenna. The transformer is tuned based on detection of the reflected power level from the antenna so as to reduce or minimize reflected power, thereby increasing RF energy coupling between the antenna and tissue.

    摘要翻译： 传输用于生物组织消融的射频（RF）能量的消融系统具有设置在传输线的远端部分的传输线和RF天线。 RF信号发生器将RF能量提供给电缆的近端以传输到天线，并且电可变变压器连接在信号发生器和天线之间。 基于从天线的反射功率电平的检测来调整变压器，以便减少或最小化反射功率，从而增加天线与组织之间的RF能量耦合。

    RADIO FREQUENCY ENERGY TRANSMISSION DEVICE FOR THE ABLATION OF BIOLOGICAL TISSUES
    9.
    发明申请
    RADIO FREQUENCY ENERGY TRANSMISSION DEVICE FOR THE ABLATION OF BIOLOGICAL TISSUES 审中-公开
    用于消除生物组织的无线电频率能量传输装置

    公开(公告)号：US20090082762A1

    公开(公告)日：2009-03-26

    申请号：US11858736

    申请日：2007-09-20

    申请人： Theodore C. Ormsby ,  George L. Leung ,  Ming Fan Law

    发明人： Theodore C. Ormsby ,  George L. Leung ,  Ming Fan Law

    IPC分类号： A61B18/18

    CPC分类号： A61B18/14 ,  A61B18/18 ,  A61B18/1815 ,  A61B2017/00243 ,  A61B2018/00577 ,  H01Q11/08

    摘要： A radio frequency energy transmission device comprises a hollow coaxial electrically conductive cable adapted for conduction of radio frequency (RF) energy, particularly microwave energy, for the ablation of biological tissue. The hollow cable has a proximal end and a distal end and comprises coaxial inner and outer conductors extending substantially the entire length of the cable from the proximal end to a distal end portion of the cable. The inner conductor comprises an elongated electrically conductive tubular member having a hollow, axially extending lumen, and the outer conductor comprises an elongated electrically conductive tubular member disposed in a substantially coaxial relationship over at least a portion of the inner conductor. Dielectricity to impede conduction between the inner and outer conductors is introduced with a vacuum or dielectric medium disposed between the inner and outer conductors. An ablating member, which delivers radio frequency energy, particularly microwave energy, to body tissue is disposed at a distal end portion of the cable. The ablating member can be a helical coil, a monopole of a microstrip circuit.

    摘要翻译： 射频能量传输装置包括适于传导射频（RF）能量，特别是微波能量的中空同轴导电电缆，用于生物组织的消融。 中空电缆具有近端和远端，并且包括同轴的内部和外部导体，其基本上从电缆的近端延伸到电缆的远端部分的整个长度。 内导体包括具有中空的轴向延伸的内腔的细长的导电管状构件，并且外导体包括在内导体的至少一部分上以基本上同轴的关系设置的细长的导电管状构件。 导电内阻和外导体之间的导通电介质被设置在内导体和外导体之间的真空或电介质介质。 将电波能量特别是微波能量的消融部件设置在电缆的远端部分。 烧蚀构件可以是螺旋线圈，微带电路的单极子。

    Vacuum-assisted securing apparatus for a microwave ablation instrument
    10.
    发明授权
    Vacuum-assisted securing apparatus for a microwave ablation instrument 失效
    用于微波消融器具的真空辅助固定装置

    公开(公告)号：US07387627B2

    公开(公告)日：2008-06-17

    申请号：US11227003

    申请日：2005-09-14

    申请人： Lyndall Erb ,  Dany Berube ,  Robert Matheny ,  Robert E. Woodard ,  Theodore C. Ormsby

    发明人： Lyndall Erb ,  Dany Berube ,  Robert Matheny ,  Robert E. Woodard ,  Theodore C. Ormsby

    IPC分类号： A61B18/18

    CPC分类号： A61B18/14 ,  A61B18/1402 ,  A61B18/18 ,  A61B18/1815 ,  A61B2018/00291 ,  A61B2018/00351 ,  A61B2018/00363 ,  A61B2018/00577 ,  A61B2018/1437

    摘要： A securing apparatus for selectively securing an ablating element of an ablation instrument proximate to a targeted region of a biological tissue. The securing apparatus includes a support base affixed to the ablation instrument relative the ablating element, and having a support face adapted to seat against the biological tissue proximate to the ablation element. The support base further defines a passage having one end communicably coupled to a vacuum source and an opposite end terminating at an orifice at the support face. The support face together with the biological tissue forms a hermetic seal thereagainst during operation of the vacuum source to secure the ablation instrument thereagainst. Essentially, the hermetic seal and the vacuum source cooperate to form a vacuum force sufficient to retain the ablation device against the biological tissue.

    摘要翻译： 一种用于选择性地固定消融器械的消融元件靠近生物组织的目标区域的固定装置。 所述固定装置包括相对于所述消融元件固定到所述消融器具的支撑基座，并且具有支撑面，所述支撑面适于靠近所述消融元件抵靠所述生物组织。 支撑基座进一步限定了一通道，该通道具有可通信地联接到真空源的一端和终止在支撑面上的孔口处的相对端。 支撑面与生物组织一起在真空源的操作期间形成气密密封，以固定消融器具。 基本上，气密密封和真空源配合以形成足以将消融装置保持在生物组织上的真空力。