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    • 2. 发明申请
    • SYSTEMS AND METHODS FOR ELECTROSURGICAL TISSUE TREATMENT
    • 静电组织治疗系统与方法
    • WO2004002293A3
    • 2005-07-28
    • PCT/US0320574
    • 2003-06-27
    • ARTHROCARE CORPWOLOSZKO JEANBAKER MICHAEL ADAHLA ROBERT HKAHLON HARDEVVILLARUEL ADELINANGUYEN CINDY TRUCGUTIERREZ IRMA
    • WOLOSZKO JEANBAKER MICHAEL ADAHLA ROBERT HKAHLON HARDEVVILLARUEL ADELINANGUYEN CINDY TRUCGUTIERREZ IRMA
    • A61B20060101A61B1/00A61B18/04A61B18/14A61B18/18
    • A61B18/148A61B18/14A61B2018/00577A61B2018/00583A61B2018/1213A61B2018/1472
    • Systems and methods are provided for applying a high frequency voltage in the presence of an electrically conductive fluid to create a relatively low-temperature plasma for ablation of tissue adjacent to, or in contact with, the plasma. In one embodiment, an electrosurgical probe or catheter is positioned adjacent the target site so that one or more active electrode(s) are brought into contact with, or close proximity to, a target tissue in the presence of electrically conductive fluid. High frequency voltage is then applied between the active electrode(s) and one or more return electrode(s) to non-thermally generate a plasma adjacent to the active electrode(s), and to volumetrically remove or ablate at least a portion of the target tissue. The high frequency voltage generates electric fields around the active electrode(s) with sufficient energy to ionize the conductive fluid adjacent to the active electrode(s). Within the ionized gas or plasma, free electrons are accelerated, and electronatoms collisions liberate more electrons, and the process cascades until the plasma contains sufficient energy to break apart the tissue molecules, causing molecular dissociation and ablation of the target tissue.
    • 提供的系统和方法用于在存在导电流体的情况下施加高频电压以产生相对低温的等离子体,以消除与等离子体相邻或与其接触的组织。 在一个实施例中,电外科探针或导管邻近靶位置定位,使得在存在导电流体的情况下使一个或多个有效电极与目标组织接触或接近。 然后将高频电压施加在有源电极和一个或多个返回电极之间以非热产生邻近有源电极的等离子体,并且对体积上去除或消除至少一部分 目标组织。 高频电压以足够的能量产生有源电极周围的电场,以使邻近有源电极的导电流体离子化。 在电离气体或等离子体中,自由电子被加速,并且电子原子碰撞释放出更多的电子,并且该过程直到等离子体含有足够的能量来分解组织分子,导致靶组织的分子解离和消融。
    • 5. 发明申请
    • CONDUCTIVE FLUID BRIDGE ELECTROSURGICAL APPARATUS
    • 导电流体电磁装置
    • WO2006125007A3
    • 2007-12-13
    • PCT/US2006019095
    • 2006-05-16
    • ARTHROCARE CORPDAHLA ROBERT H
    • DAHLA ROBERT H
    • A61B18/18
    • A61B18/1485A61B2018/1213A61B2018/1472A61B2218/002A61B2218/003A61B2218/007
    • An electrosurgical apparatus for treating body tissue, comprising an active and a return electrode, a vacuum inlet located near the active electrode, and at least one pinhole defined on the apparatus near the return electrode that is adapted to provide a conductive fluid bridge between the active and return electrodes during use regardless of the orientation of the electrodes relative to the tissue, without flooding the electrodes or the tissue. Also, a method and system of performing a dry field surgical procedure comprising applying ablative energy to a target tissue wherein the target tissue is not flooded or submerged in electrically conductive fluid; and maintaining a fluid bridge between the electrodes regardless of the orientation of the shaft. Advantageously, since the conductive fluid bridge is maintained for any orientation of the electrodes relative to the tissue without flooding, the instrument can be used to treat tissue from any orientation without breaking the fluid bridge.
    • 一种用于治疗身体组织的电外科设备,包括活性和返回电极,位于有源电极附近的真空入口和限定在靠近返回电极的设备上的至少一个针孔,其适于在活性物质之间提供导电流体桥梁 并且在使用期间返回电极,而不管电极相对于组织的取向如何,而不会使电极或组织淹没。 而且,执行干场外科手术的方法和系统包括向目标组织施加烧蚀能量,其中靶组织不被淹没或浸没在导电流体中; 并且维持电极之间的流体桥梁,而与轴的取向无关。 有利地,由于导电流体桥保持电极相对于组织的任何取向而没有淹没,所以该仪器可用于从任何方向处理组织而不破坏流体桥。
    • 6. 发明申请
    • ELECTROSURGICAL APPARATUS AND METHODS FOR TISSUE TREATMENT & REMOVAL
    • 静电设备和组织治疗和移除方法
    • WO03024305A2
    • 2003-03-27
    • PCT/US0229476
    • 2002-09-16
    • ARTHROCARE CORPDAHLA ROBERT HWOLOZCO JEAN
    • DAHLA ROBERT HWOLOZCO JEAN
    • A61B20060101A61B17/20A61B18/14A61B18/18A61B
    • A61B18/148A61B18/042A61B2018/00577A61B2018/00583A61B2018/1213A61B2018/1467A61B2018/1472A61B2218/007
    • Systems, apparatus, and methods for ablating, sculpting, severing, shrinking, coagulating, or otherwise modifying a target tissue to be treated. In a method for treating a target tissue, an active electrode terminal of an electrosurgical probe is positioned in at least close proximity to the target tissue. A high frequency voltage is then applied between the active electrode and a return electrode, wherein, the high frequency voltage is sufficient to volumetrically remove (ablate), sever, or modify at least a portion of the target tissue. The probe comprises an electrode assembly including an electrode support and at least one active electrode terminal arranged within the electrode support, the electrode support having a suction cavity, and each active electrode terminal having an electrode lumen therein, the electrode lumen in communication with the suction cavity. Unwanted materials may be aspirated from a surgical site via the electrode lumen.
    • 用于烧蚀,雕刻,切割,收缩,凝结或以其他方式修饰待治疗的靶组织的系统,装置和方法。 在用于治疗靶组织的方法中,电外科探针的活性电极端子位于至少紧邻靶组织的位置。 然后在有源电极和返回电极之间施加高频电压,其中,高频电压足以体积地去除(消融),切断或修改目标组织的至少一部分。 该探针包括电极组件,该电极组件包括电极支撑件和布置在电极支架内的至少一个有源电极端子,电极支架具有吸入腔,并且每个有源电极端子在其中具有电极腔,电极腔与抽吸 腔。 不需要的材料可以通过电极腔从手术部位吸出。
    • 7. 发明申请
    • TIP REINFORCED ELECTROSURGICAL DEVICE
    • 尖端加强电外科装置
    • WO2005086683A3
    • 2005-10-27
    • PCT/US2005007038
    • 2005-03-04
    • ARTHROCARE CORPDRBAL VLADIMIR JDAHLA ROBERT H
    • DRBAL VLADIMIR JDAHLA ROBERT H
    • A61B18/14A61B18/18
    • A61B18/148A61B18/14A61B2018/0016A61B2018/00178A61B2018/00625A61B2018/1407A61B2018/1467A61B2018/1472A61B2018/1497A61B2218/007
    • A tip reinforced electrosurgical device for removing tissue from a target site within or on a patient's body includes a shaft having proximal and distal end portions and an active screen electrode on the distal end portion. A return electrode includes arms that are interlocked with the shaft distal end portion. Interlocking features may include dimples, bends, slots, recess, apertures, threads. Adhesives may also be provided to increase the strength of the connection between the tip assembly and the shaft. The electrosurgical probe further includes at least one electrical connector extending through the shaft that connects the active electrode with a high frequency power supply. At least one electrical coupling member such as a ballwire secures the active screen electrode to the shaft distal end and electrically couples the screen electrode to the at least one electrical connector. An aspiration lumen within the shaft having a distal opening coupled to the active electrode may be provided to aspirate fluids and tissue fragments.
    • 用于从患者体内或患者身体上的目标部位移除组织的尖端增强型电外科装置包括具有近端和远端部分以及远端部分上的有源屏幕电极的轴。 返回电极包括与轴远端部分互锁的臂。 联锁功能可能包括凹痕,弯曲,槽,凹槽,孔,螺纹。 还可以提供粘合剂以增加尖端组件和轴之间的连接强度。 电外科探针还包括至少一个延伸穿过轴的电连接器,该连接器将有源电极与高频电源连接。 至少一个电连接构件(诸如球线)将有源屏幕电极固定到轴远端并将屏电极电耦合到至少一个电连接器。 可以提供具有连接到有源电极的远侧开口的轴内的抽吸腔以抽吸流体和组织碎片。