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1. 发明申请

US20060036237A1 Devices and methods for selective orientation of electrosurgical devices 审中-公开
标题翻译：电外科装置选择性取向的装置和方法
公开(公告)号：US20060036237A1
公开(公告)日：2006-02-16
申请号：US11144934
申请日：2005-06-03
申请人： Terry Davison , Matthew Yates , Theodore Ormsby , Jean Woloszko
发明人： Terry Davison , Matthew Yates , Theodore Ormsby , Jean Woloszko
IPC分类号： A61B18/14
CPC分类号： A61B18/1482 , A61B2017/003
摘要： Devices and methods for the selective orientation of electrodes for effecting the controlled ablation, coagulation, or other modification of a target tissue in vivo with no or minimal collateral tissue damage. The subject devices are electrosurgical wands configured to only bend in a single plane. The subject methods involve use of the subject devices to prepare for the treatment of a target tissue site.
摘要翻译：用于选择性取向电极的装置和方法，用于在没有或最小的侧支组织损伤的情况下对体内靶组织进行受控消融，凝固或其它修饰。主体装置是构造成仅在单个平面中弯曲的电外科手杖。本发明方法涉及使用受试装置来准备治疗靶组织部位。

2. 发明申请

US20080119844A1 BIPOLAR ELECTROSURGICAL CLAMP FOR REMOVING AND MODIFYING TISSUE 失效
标题翻译：用于去除和修饰组织的双极电磁固定夹
公开(公告)号：US20080119844A1
公开(公告)日：2008-05-22
申请号：US11942360
申请日：2007-11-19
申请人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
发明人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
IPC分类号： A61B18/12
CPC分类号： A61B18/12 , A61B18/1206 , A61B18/1402 , A61B18/148 , A61B18/1482 , A61B18/1485 , A61B18/149 , A61B18/1492 , A61B2017/00026 , A61B2017/00084 , A61B2017/00101 , A61B2017/00247 , A61B2018/00029 , A61B2018/00083 , A61B2018/00119 , A61B2018/0016 , A61B2018/00178 , A61B2018/00327 , A61B2018/00392 , A61B2018/00505 , A61B2018/00577 , A61B2018/00583 , A61B2018/00601 , A61B2018/0066 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00791 , A61B2018/00827 , A61B2018/00875 , A61B2018/00982 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1412 , A61B2018/1422 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2218/002 , A61B2218/003 , A61B2218/007 , A61F2/2493
摘要： The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to ablate, contract, coagulate, or otherwise modify a target tissue or organ. The closed configuration is adapted for clamping and coagulating a target tissue while the apparatus is operating in the sub-ablation mode, while the open configuration is adapted for ablating the target tissue via molecular dissociation of tissue components. A method of the present invention comprises clamping a target tissue or organ with an electrosurgical probe. A first high frequency voltage is applied between the active electrode and the return electrode to effect coagulation of the clamped tissue. Thereafter, a second high frequency voltage is applied to effect localized molecular dissociation of the coagulated tissue.
摘要翻译：本发明提供了用于选择性地将电能施加到身体组织以便烧蚀，收缩，凝固或以其它方式改变靶组织或器官的系统，装置和方法。闭合构型适于在装置以亚烧蚀模式操作时夹紧和凝固靶组织，而开放构型适于通过组织部件的分子解离来烧蚀靶组织。本发明的方法包括用电外科手术探针夹紧靶组织或器官。在有源电极和返回电极之间施加第一高频电压以实现夹持的组织的凝结。此后，施加第二高频电压以实现凝固组织的局部分子解离。

3. 发明申请

US20060129145A1 Bipolar electrosurgical clamp for removing and modifying tissue 失效
标题翻译：用于去除和修饰组织的双极电外科夹
公开(公告)号：US20060129145A1
公开(公告)日：2006-06-15
申请号：US11248460
申请日：2005-10-11
申请人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
发明人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
IPC分类号： A61B18/14
CPC分类号： A61B18/12 , A61B18/1206 , A61B18/1402 , A61B18/148 , A61B18/1482 , A61B18/1485 , A61B18/149 , A61B18/1492 , A61B2017/00026 , A61B2017/00084 , A61B2017/00101 , A61B2017/00247 , A61B2018/00029 , A61B2018/00083 , A61B2018/00119 , A61B2018/0016 , A61B2018/00178 , A61B2018/00327 , A61B2018/00392 , A61B2018/00505 , A61B2018/00577 , A61B2018/00583 , A61B2018/00601 , A61B2018/0066 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00791 , A61B2018/00827 , A61B2018/00875 , A61B2018/00982 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1412 , A61B2018/1422 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2218/002 , A61B2218/003 , A61B2218/007 , A61F2/2493
摘要： The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to ablate, contract, coagulate, or otherwise modify a target tissue or organ. The closed configuration is adapted for clamping and coagulating a target tissue while the apparatus is operating in the sub-ablation mode, while the open configuration is adapted for ablating the target tissue via molecular dissociation of tissue components. A method of the present invention comprises clamping a target tissue or organ with an electrosurgical probe. A first high frequency voltage is applied between the active electrode and the return electrode to effect coagulation of the clamped tissue. Thereafter, a second high frequency voltage is applied to effect localized molecular dissociation of the coagulated tissue.
摘要翻译：本发明提供了用于选择性地将电能施加到身体组织以便烧蚀，收缩，凝固或以其它方式改变靶组织或器官的系统，装置和方法。闭合构型适于在装置以亚烧蚀模式操作时夹紧和凝固靶组织，而开放构型适于通过组织部件的分子解离来烧蚀靶组织。本发明的方法包括用电外科手术探针夹紧靶组织或器官。在有源电极和返回电极之间施加第一高频电压以实现夹持的组织的凝结。此后，施加第二高频电压以实现凝固组织的局部分子解离。

4. 发明授权

US07717912B2 Bipolar electrosurgical clamp for removing and modifying tissue 失效
标题翻译：用于去除和修饰组织的双极电外科夹
公开(公告)号：US07717912B2
公开(公告)日：2010-05-18
申请号：US11942360
申请日：2007-11-19
申请人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
发明人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
IPC分类号： A61B18/14
CPC分类号： A61B18/12 , A61B18/1206 , A61B18/1402 , A61B18/148 , A61B18/1482 , A61B18/1485 , A61B18/149 , A61B18/1492 , A61B2017/00026 , A61B2017/00084 , A61B2017/00101 , A61B2017/00247 , A61B2018/00029 , A61B2018/00083 , A61B2018/00119 , A61B2018/0016 , A61B2018/00178 , A61B2018/00327 , A61B2018/00392 , A61B2018/00505 , A61B2018/00577 , A61B2018/00583 , A61B2018/00601 , A61B2018/0066 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00791 , A61B2018/00827 , A61B2018/00875 , A61B2018/00982 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1412 , A61B2018/1422 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2218/002 , A61B2218/003 , A61B2218/007 , A61F2/2493
摘要： The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to ablate, contract, coagulate, or otherwise modify a target tissue or organ. The closed configuration is adapted for clamping and coagulating a target tissue while the apparatus is operating in the sub-ablation mode, while the open configuration is adapted for ablating the target tissue via molecular dissociation of tissue components. A method of the present invention comprises clamping a target tissue or organ with an electrosurgical probe. A first high frequency voltage is applied between the active electrode and the return electrode to effect coagulation of the clamped tissue. Thereafter, a second high frequency voltage is applied to effect localized molecular dissociation of the coagulated tissue.
摘要翻译：本发明提供了用于选择性地将电能施加到身体组织以便烧蚀，收缩，凝固或以其它方式改变靶组织或器官的系统，装置和方法。闭合构型适于在装置以亚烧蚀模式操作时夹紧和凝固靶组织，而开放构型适于通过组织部件的分子解离来烧蚀靶组织。本发明的方法包括用电外科手术探针夹紧靶组织或器官。在有源电极和返回电极之间施加第一高频电压以实现夹持的组织的凝结。此后，施加第二高频电压以实现凝固组织的局部分子解离。

5. 发明授权

US07297145B2 Bipolar electrosurgical clamp for removing and modifying tissue 失效
标题翻译：用于去除和修饰组织的双极电外科夹
公开(公告)号：US07297145B2
公开(公告)日：2007-11-20
申请号：US11248460
申请日：2005-10-11
申请人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
发明人： Jean Woloszko , Craig Tsuji , Theodore Ormsby
IPC分类号： A61B18/14
CPC分类号： A61B18/12 , A61B18/1206 , A61B18/1402 , A61B18/148 , A61B18/1482 , A61B18/1485 , A61B18/149 , A61B18/1492 , A61B2017/00026 , A61B2017/00084 , A61B2017/00101 , A61B2017/00247 , A61B2018/00029 , A61B2018/00083 , A61B2018/00119 , A61B2018/0016 , A61B2018/00178 , A61B2018/00327 , A61B2018/00392 , A61B2018/00505 , A61B2018/00577 , A61B2018/00583 , A61B2018/00601 , A61B2018/0066 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00791 , A61B2018/00827 , A61B2018/00875 , A61B2018/00982 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1412 , A61B2018/1422 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2218/002 , A61B2218/003 , A61B2218/007 , A61F2/2493
摘要： The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to ablate, contract, coagulate, or otherwise modify a target tissue or organ. The closed configuration is adapted for clamping and coagulating a target tissue while the apparatus is operating in the sub-ablation mode, while the open configuration is adapted for ablating the target tissue via molecular dissociation of tissue components. A method of the present invention comprises clamping a target tissue or organ with an electrosurgical probe. A first high frequency voltage is applied between the active electrode and the return electrode to effect coagulation of the clamped tissue. Thereafter, a second high frequency voltage is applied to effect localized molecular dissociation of the coagulated tissue.
摘要翻译：本发明提供了用于选择性地将电能施加到身体组织以便烧蚀，收缩，凝固或以其它方式改变靶组织或器官的系统，装置和方法。闭合构型适于在装置以亚烧蚀模式操作时夹紧和凝固靶组织，而开放构型适于通过组织部件的分子解离来烧蚀靶组织。本发明的方法包括用电外科手术探针夹紧靶组织或器官。在有源电极和返回电极之间施加第一高频电压以实现夹持的组织的凝结。此后，施加第二高频电压以实现凝固组织的局部分子解离。

6. 发明申请

US20120101494A1 ELECTROSURGICAL SYSTEM WITH DEVICE SPECIFIC OPERATIONAL PARAMETERS 审中-公开
标题翻译：具有设备特定操作参数的电磁系统
公开(公告)号：US20120101494A1
公开(公告)日：2012-04-26
申请号：US12909930
申请日：2010-10-22
申请人： Hadar Cadouri , Jean Woloszko , Philip M. Tetzlaff
发明人： Hadar Cadouri , Jean Woloszko , Philip M. Tetzlaff
IPC分类号： A61B18/14 , A61B18/12
CPC分类号： A61B18/148 , A61B18/16 , A61B2217/007 , A61B2218/002
摘要： Electrosurgical systems and methods include a generator which is operable to connect to an electrosurgical device and to identify the electrosurgical device. The generator automatically determines at least one device specific operational parameter for carrying out the electrosurgical procedure. In an exemplary embodiment, a generator includes a fluid pump and the generator automatically determines a candidate flowrate at which to operate the pump based on the type of device. The device specific operational parameter may be selected or modified by the operator prior to commencing the procedure.
摘要翻译：电外科系统和方法包括可操作以连接到电外科装置并识别电外科装置的发生器。发电机自动确定至少一个设备特定的操作参数，以执行电外科手术。在示例性实施例中，发电机包括流体泵，并且发电机基于设备的类型自动确定用于操作泵的候选流量。在开始该过程之前，操作者可以选择或修改设备特定操作参数。

7. 发明申请

US20100191283A1 KNOTLESS SUTURE ANCHORING DEVICE HAVING DEFORMING SECTION TO ACCOMMODATE SUTURES OF VARIOUS DIAMETERS 有权
标题翻译：具有变形部分以适应各种直径的无缝锚固装置
公开(公告)号：US20100191283A1
公开(公告)日：2010-07-29
申请号：US11916135
申请日：2006-06-01
申请人： Seth A. Foerster , Francis Vijay , Jean Woloszko
发明人： Seth A. Foerster , Francis Vijay , Jean Woloszko
IPC分类号： A61B17/04
CPC分类号： A61B17/0401 , A61B17/0487 , A61B2017/0409 , A61B2017/0414 , A61B2017/0417 , A61B2017/045 , A61B2017/0458 , A61B2017/0496 , A61F2/0805 , A61F2/0811 , A61F2002/0835 , A61F2002/0864 , A61F2002/0882 , A61F2002/0888
摘要： An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone, which permit a suture attachment that lies entirely beneath the cortical bone surface. The suturing material between the soft tissue and the bone anchor may be secured without the need for tying a knot. The suture attachment to the bone anchor involves the looping of a length of suture around a suture return member or path within the bone anchor, tightening the suture and attached soft tissue, and compressing the suture against the bone anchor. The bone anchor may be a tubular body having a lumen with a locking plug that compresses the suture therein. One of the components of the locking structure may include a deformable or flexible section, member, or surface. The locking plug may include a shaft and an enlarged head that interferes with the tubular body to provide a positive stop. An actuation rod attached at a frangible section to the shaft may be manipulated by an external handle during locking of the suture within the bone anchor. The bone anchor further may include locking structure for securing itself within a bone cavity.
摘要翻译：一种创新的骨锚和用于将软组织（例如肌腱）固定到骨上的方法，其允许完全位于皮层骨表面下方的缝合线附着。可以固定软组织和骨锚之间的缝合材料，而不需要捆扎结。与骨锚固件的缝合线附件涉及围绕骨锚固件内的缝合线返回构件或路径的一段缝合线，使缝合线和附接的软组织紧固，以及将缝合线压靠骨锚。骨锚可以是具有内腔的管状体，其具有在其中压缩缝合线的锁定塞。锁定结构的部件之一可包括可变形或柔性部分，部件或表面。锁定塞可以包括轴和扩大的头部，其干扰管状体以提供止挡。在缝合线锁定在骨锚固体内时，可以通过外部手柄来操纵在易碎部分处连接到轴的致动杆。骨锚还可以包括用于将自身固定在骨腔内的锁定结构。

8. 发明授权

US07572251B1 Systems and methods for electrosurgical tissue treatment 有权
标题翻译：电外科组织治疗的系统和方法
公开(公告)号：US07572251B1
公开(公告)日：2009-08-11
申请号：US09457201
申请日：1999-12-06
申请人： Terry S. Davison , Jean Woloszko , Michael A. Baker , Hira V. Thapliyal , Philip E. Eggers
发明人： Terry S. Davison , Jean Woloszko , Michael A. Baker , Hira V. Thapliyal , Philip E. Eggers
IPC分类号： A61M31/00 , A61B17/20
CPC分类号： A61B18/12 , A61B18/1206 , A61B18/1402 , A61B18/148 , A61B18/1482 , A61B18/1485 , A61B18/149 , A61B18/1492 , A61B2017/00026 , A61B2017/00084 , A61B2017/00097 , A61B2017/00101 , A61B2017/00106 , A61B2017/00247 , A61B2017/00292 , A61B2017/003 , A61B2017/22001 , A61B2017/22038 , A61B2018/00029 , A61B2018/00083 , A61B2018/00119 , A61B2018/0016 , A61B2018/00178 , A61B2018/00196 , A61B2018/00327 , A61B2018/00392 , A61B2018/00505 , A61B2018/00565 , A61B2018/00577 , A61B2018/00583 , A61B2018/00601 , A61B2018/00642 , A61B2018/0066 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00738 , A61B2018/00755 , A61B2018/00761 , A61B2018/00791 , A61B2018/00797 , A61B2018/00821 , A61B2018/00827 , A61B2018/00875 , A61B2018/00886 , A61B2018/00982 , A61B2018/1213 , A61B2018/124 , A61B2018/1246 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1407 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2090/378 , A61B2090/3782 , A61B2218/002 , A61B2218/007 , A61F2/2493 , A61F2/95 , A61M3/0283 , A61M25/0133
摘要： 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 electron-atoms 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.
摘要翻译：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，以非热生成邻近有源电极的等离子体，并且对体积方法移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。

9. 发明授权

US07419488B2 Electrosurgical probe with movable return electrode and methods related thereto 有权
标题翻译：具有可移动返回电极的电外科探头及其相关方法
公开(公告)号：US07419488B2
公开(公告)日：2008-09-02
申请号：US11028709
申请日：2005-01-03
申请人： Scott A. Ciarrocca , Francois Antounian , Jean Woloszko , Robert H. Dahla
发明人： Scott A. Ciarrocca , Francois Antounian , Jean Woloszko , Robert H. Dahla
IPC分类号： A61B18/14
CPC分类号： A61B18/1402 , A61B18/1206 , A61B18/148 , A61B18/1482 , A61B18/1485 , A61B18/149 , A61B18/1492 , A61B2017/00026 , A61B2017/00084 , A61B2017/00101 , A61B2017/00247 , A61B2018/00029 , A61B2018/00083 , A61B2018/00119 , A61B2018/00148 , A61B2018/0016 , A61B2018/00178 , A61B2018/00327 , A61B2018/00392 , A61B2018/00404 , A61B2018/0047 , A61B2018/00476 , A61B2018/00505 , A61B2018/00577 , A61B2018/00583 , A61B2018/00601 , A61B2018/00625 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00791 , A61B2018/00797 , A61B2018/00815 , A61B2018/00821 , A61B2018/00827 , A61B2018/00875 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1412 , A61B2018/1422 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2218/002 , A61B2218/003 , A61B2218/007 , A61F2/2493 , A61M3/0283
摘要： The present invention provides systems, apparatus, and methods for dissecting, resecting, severing, cutting, contracting, coagulating, or otherwise modifying a tissue or organ of a patient. An apparatus of the invention includes an electrosurgical probe configurable between an open configuration and a closed configuration, the probe including an active electrode terminal, a fixed return electrode disposed proximal to the active electrode terminal, and a movable return electrode configured to move linearly with respect to the active electrode terminal between the open configuration and the closed configuration. A method of the present invention comprises clamping a blood vessel between the active electrode terminal and the movable return electrode, coagulating the clamped blood vessel by application of a first high frequency voltage, and severing the coagulated blood vessel by application of a second high frequency voltage.
摘要翻译：本发明提供用于解剖，切除，切断，切割，收缩，凝结或以其它方式改变患者的组织或器官的系统，装置和方法。本发明的装置包括可在打开结构和闭合配置之间配置的电外科探头，所述探针包括有源电极端子，靠近有源电极端子设置的固定返回电极和可移动的返回电极，其被配置为相对于到打开配置和关闭配置之间的有源电极端子。本发明的方法包括：在有源电极端子和可动返回电极之间夹持血管，通过施加第一高频电压凝固夹持的血管，并通过施加第二高频电压来切断凝血血管。

10. 发明授权

US07270661B2 Electrosurgical apparatus and methods for treatment and removal of tissue 有权
标题翻译：用于治疗和去除组织的电外科手术装置和方法
公开(公告)号：US07270661B2
公开(公告)日：2007-09-18
申请号：US10068533
申请日：2002-02-05
申请人： Robert H. Dahla , Jean Woloszko
发明人： Robert H. Dahla , Jean Woloszko
IPC分类号： A61B18/18
CPC分类号： A61B18/148 , A61B18/1492 , A61B2018/00577 , A61B2018/00583 , A61B2018/1213 , A61B2018/1437 , A61B2018/1472
摘要： Apparatus and methods for ablating, severing, cutting, shrinking, coagulating, or otherwise modifying a target tissue to be treated. In a method for treating a target tissue, an active electrode of an electrosurgical probe is positioned in at least close proximity to the target tissue in the presence of an electrically conductive fluid. 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 a multi-lumen shaft having a plurality of internal lumens, and a return electrode coil oriented substantially parallel to the shaft distal end. The active electrode may be in the form of a metal disc, a hook, or an active electrode coil. In the latter embodiment, the active electrode coil is typically arranged substantially orthogonal to the return electrode coil. Methods of making an active electrode coil, a return electrode coil, and an electrosurgical probe are also disclosed.
摘要翻译：用于烧蚀，切断，切割，收缩，凝结或以其它方式修饰待治疗的靶组织的装置和方法。在用于治疗靶组织的方法中，在存在导电流体的情况下，电外科探针的活性电极至少紧邻靶组织。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。探针包括具有多个内腔的多腔轴和基本上平行于轴远端取向的返回电极线圈。有源电极可以是金属盘，钩或有源电极线圈的形式。在后一实施例中，有源电极线圈通常布置成基本上垂直于返回电极线圈。还公开了制造有源电极线圈，返回电极线圈和电外科探头的方法。

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