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1. 发明申请

WO01095819A1 ELECTROSURGICAL APPARATUS AND METHODS FOR ABLATING TISSUE 审中-公开
标题翻译：静电装置和组织剥离方法
公开(公告)号：WO01095819A1
公开(公告)日：2001-12-20
申请号：PCT/US2001/016006
申请日：2001-05-16
IPC分类号： A61B17/00 , A61B18/00 , A61B18/12 , A61B18/14 , A61F2/02 , A61M1/00 , A61M3/02
CPC分类号： 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 , A61B2018/00291 , A61B2018/00327 , A61B2018/00392 , A61B2018/00505 , A61B2018/00577 , A61B2018/00583 , A61B2018/00601 , A61B2018/00666 , A61B2018/00678 , A61B2018/00702 , A61B2018/0072 , A61B2018/00726 , A61B2018/00779 , A61B2018/00791 , A61B2018/00827 , A61B2018/00875 , A61B2018/00982 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1407 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2218/002 , A61B2218/007
摘要： Electrosurgical methods, systems, and apparatus for the controlled ablation of tissue from a target site of a patient. An electrosurgical instrument includes a working portion having a plurality of working zones differentiated according to their relative rates of aspiration and ablation. The instrument (1400) further includes an aspiration channel in communication with a plurality of aspiration ports (1440), and a plurality of active electrodes disposed on the working portion. Each of the plurality of working zones may have at least one of the plurality of active electrodes and at least one of the plurality of aspiration ports. The aspiration rate of each working zone is dependent, inter alia , on the number, size, and distribution of the aspiration ports on that zone. In one embodiment, the ablation rate of a working zone is inversely related to the aspiration rate of that zone. Each of the plurality of active electrodes is adapted for ablating tissue to form low molecular weight ablation by-products. The ablation by-products may be aspirated from the target site via aspiration port(s) on one or more of the plurality of working zones.
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。电外科器械包括具有根据其相对吸气和消融速率而区分的多个工作区的工作部分。仪器（1400）还包括与多个抽吸端口（1440）连通的抽吸通道和设置在工作部分上的多个有效电极。多个工作区域中的每一个可以具有多个有效电极中的至少一个和多个抽吸端口中的至少一个。每个工作区域的抽吸速率取决于特定在该区域上的抽吸端口的数量，大小和分布。在一个实施例中，工作区域的消融速率与该区域的吸气速率成反比。多个有效电极中的每一个适于消融组织以形成低分子量消融副产物。消融副产物可以通过多个工作区中的一个或多个上的抽吸端口从目标部位吸出。

2. 发明申请

WO1998048714A1 ELECTROSURGICAL BLADE WITH A CONDUCTIVE, NON-STICK COATING 审中-公开
标题翻译：具有导电性，非粘性涂层的电磁刀片
公开(公告)号：WO1998048714A1
公开(公告)日：1998-11-05
申请号：PCT/US1997009506
申请日：1997-06-04
申请人： MEDQUEST PRODUCTS, INC.
发明人： MEDQUEST PRODUCTS, INC. , KUMAR, B., Ajit , KHANWILKAR, Pratap , OLSEN, Don, B.
IPC分类号： A61B17/36
CPC分类号： A61B18/1402 , A61B2017/0088 , A61B2018/00107 , A61B2018/00119 , A61B2018/0013 , A61B2018/00142 , Y10T29/49117
摘要： An electrosurgical blade (100) is provided having a ceramic (104) coating which is conductive, flexible and provides a surface which inhibits the build up of charred tissue. These properties enable the electrosurgical blade to deliver controlled amounts of radio-frequency energy to tissue. The manufacturing process produces a coating of titanium nitride on a stainless steel blade which is amorphous, enabling the electrosurgical blade to bend with the blade in order to perform a wide variety of surgical procedures without damaging the coating. The electrosurgical blade can therefore be used to efficiently cut, coagulate, fulgurate and desiccate tissue. While the blade is primarily used in the monopolar mode, the present invention also encompasses at least two electrosurgical electrodes having the same ceramic coating as the electrosurgical blade, and used in the bipolar mode for coagulation.
摘要翻译：提供电外科刀片（100），其具有陶瓷（104）涂层，该陶瓷（104）涂层是导电的，柔性的并且提供抑制烧结组织积聚的表面。这些性质使得电外科刀片能够将受控量的射频能量输送到组织。该制造工艺在不锈钢刀片上产生氮化钛涂层，其是无定形的，使得电外科刀片能够与刀片一起弯曲，以便执行各种各样的外科手术而不损坏涂层。因此，电外科刀片可用于有效地切割，凝结，凝结和干燥组织。虽然刀片主要用于单极模式，但是本发明还包括至少两个具有与电外科刀片相同的陶瓷涂层的电外科电极，并且用于双极模式用于凝固。

3. 发明申请

WO1995013704A1 ANTI-MICROBIAL MATERIALS 审中-公开
标题翻译：抗微生物材料
公开(公告)号：WO1995013704A1
公开(公告)日：1995-05-26
申请号：PCT/CA1994000604
申请日：1994-11-01
申请人： WESTAIM TECHNOLOGIES INC. , BURRELL, Robert, Edward , APTÉ, Prasad, Shrikrishna , GILL, Kashmir, Singh , PRECHT, Roderick, John , MORRIS, Larry, Roy , MCINTOSH, Catherine, Laurie , SANT, Sudhindra, Bharat
发明人： WESTAIM TECHNOLOGIES INC.
IPC分类号： A01N59/16
CPC分类号： C23C14/588 , A01N59/16 , A01N59/26 , A61B2018/00119 , A61L17/145 , A61L29/106 , C23C14/0036 , C23C14/025 , C23C14/06 , C23C14/0688 , C23C14/086 , C23C14/14 , C23C14/16 , A01N47/30 , A01N43/80 , A01N43/78 , A01N41/08 , A01N2300/00
摘要： Anti-microbial coatings and powders and method of forming same on medical devices are provides. The coatings are preferably formed by depositing an anti-microbial biocompatible metal by vapour deposition techniques to produce atomic disorder in the coating such that a sustained release of metal ions sufficient to produce an anti-microbial effect is achieved. Preferred deposition conditions to achieve atomic disorder include a lower than normal substrate temperature, and one or more of a higher than normal working gas pressure and a lower than normal angle of incidence of coating flux. Anti-microbial powders formed by vapour deposition or altered by mechanical working to produce atomic disorder are also provided. The anti-microbial effect of the coatings or powders may be further activated or enhanced by irradiating with a low linear energy transfer form of radiation such as gamma radiation. Novel anti-microbial silver materials are defined, characterized by having a positive rest potential, a Trec/Tm less than 0.33, and a grain size less than 200 nm. Anti-microbial fine grain or nanocrystalline materials are provided, together with methods of preparation, wherein the anti-microbial metal if deposited in a matrix with atoms or molecules of a different material such as other biocompatible metals (ex. Ta), trapped or absorbed oxygen, or compounds of anti-microbial metals or biocompatible metals (ex. Ag0 or TaO). The invention also extends to a method of producing an anti-microbial effect with silver materials that form complex silver ions other than Ag , Ag and Ag .
摘要翻译：提供了抗微生物涂层和粉末及其在医疗设备上的形成方法。优选通过气相沉积技术沉积抗微生物生物相容性金属以在涂层中产生原子紊乱形成涂层，从而实现足以产生抗微生物作用的金属离子的持续释放。实现原子紊乱的优选沉积条件包括低于正常的衬底温度，以及高于正常工作气体压力和低于正常入射角的涂层焊剂的一种或多种。还提供了通过气相沉积或通过机械加工改变以产生原子紊乱形成的抗微生物粉末。通过用低线性能量转移形式的辐射如γ辐射照射可以进一步激活或增强涂层或粉末的抗微生物作用。定义了新的抗微生物银材料，其特征在于具有阳性静电位，Trec / Tm小于0.33，粒度小于200nm。提供抗微生物细晶粒或纳米晶体材料以及制备方法，其中如果将抗微生物金属沉积在具有不同材料的原子或分子的基质中，例如其它生物相容性金属（例如Ta），被捕获或吸收氧气或抗微生物金属或生物相容性金属化合物（例如AgO或TaO）。本发明还延伸到用除Ag +，Ag 2+和Ag <3+以外的复合银离子的银材料产生抗菌效果的方法。

4. 发明申请

WO1992022256A1 ELECTROSURGICAL APPARATUS AND METHOD EMPLOYING CONSTANT VOLTAGE 审中-公开
标题翻译：静电装置和使用恒定电压的方法
公开(公告)号：WO1992022256A1
公开(公告)日：1992-12-23
申请号：PCT/US1992004663
申请日：1992-06-05
申请人： HEMOSTATIC SURGERY CORPORATION , EGGERS, Philip, E.
发明人： HEMOSTATIC SURGERY CORPORATION , CORDIS, Jack, C. , DENEN, Dennis, J. , KNITTLE, John, J. , RAMSEY, Raymond, C. , SHAW, Robert, Francis
IPC分类号： A61B17/39
CPC分类号： A61B18/1206 , A61B17/2258 , A61B17/320016 , A61B18/12 , A61B18/1402 , A61B18/1445 , A61B18/1815 , A61B2017/0088 , A61B2018/00083 , A61B2018/00107 , A61B2018/00119 , A61B2018/0066 , A61B2018/1213 , A61B2018/126 , A61B2018/1412 , A61B2018/1415 , A61B2018/146 , A61B2018/1861 , A61B2090/034
摘要： Endoscopic surgical instruments (10) are provided that have bipolar electrodes on opposing movable members (18, 19) for passing a high frequency current through tissue for simulataneously severing or manipulating the tissue and causing hemostasis of the tissue. An electrically insulating material is interposed between the movable members so that the electrodes are spaced apart from .002 to 0.050 inches and the current passes between the opposing electrodes through the tissue.

5. 发明申请

WO1992021301A1 HEMOSTATIC BI-POLAR ELECTROSURGICAL CUTTING APPARATUS AND METHOD 审中-公开
公开(公告)号：WO1992021301A1
公开(公告)日：1992-12-10
申请号：PCT/US1992004664
申请日：1992-06-05
申请人： HEMOSTATIC SURGERY CORPORATION , EGGERS, Philip, E.
发明人： HEMOSTATIC SURGERY CORPORATION
IPC分类号： A61B17/39
CPC分类号： A61B18/1206 , A61B17/2258 , A61B17/320016 , A61B18/12 , A61B18/1402 , A61B18/1445 , A61B18/1815 , A61B2017/0088 , A61B2018/00083 , A61B2018/00107 , A61B2018/00119 , A61B2018/0066 , A61B2018/1213 , A61B2018/126 , A61B2018/1412 , A61B2018/1415 , A61B2018/146 , A61B2018/1861 , A61B2090/034
摘要： Endoscopic surgical instruments (10) are provided that have bipolar electrodes on opposing movable members (18, 19) for passing a high frequency current through tissue for simulataneously severing or manipulating the tissue and causing hemostasis of the tissue. An electrically insulating material is interposed between the movable members so that the electrodes are spaced apart from .002 to 0.050 inches and the current passes between the opposing electrodes through the tissue.

6. 发明申请

WO2014170011A1 COATING SYSTEM COMPRISING ZRO2 FOR ELECTROSURGICAL DEVICES 审中-公开
标题翻译：包含ZRO2用于静电设备的涂层系统
公开(公告)号：WO2014170011A1
公开(公告)日：2014-10-23
申请号：PCT/EP2014/001003
申请日：2014-04-15
申请人： OERLIKON TRADING AG, TRÜBBACH
发明人： JANSSEN, Albert, Peter, Gerhard , DERFLINGER, Volker , ACIKGOZ, Canet
IPC分类号： C23C14/08 , C23C14/35 , A61B18/00
CPC分类号： A61B18/14 , A61B2018/00083 , A61B2018/00101 , A61B2018/00107 , A61B2018/00119 , A61B2018/0041 , A61B2018/00577 , A61B2018/00589 , A61B2018/00601 , A61B2018/1253 , A61B2018/126 , A61B2018/1412 , A61B2018/144 , C23C14/0036 , C23C14/083 , C23C14/325 , C23C14/345 , C23C14/35
摘要： The present invention relates to a coating system comprising at least one layer made at least essentially of ZrO 2 which is used for providing insulating properties to parts o medical devices particularly of electrosurgical devices.
摘要翻译：本发明涉及包含至少一个至少基本上由ZrO2制成的层的涂层系统，其用于为医疗装置，特别是电外科装置的部件提供绝缘性能。

7. 发明申请

WO0009053A9 SYSTEMS AND METHODS FOR ELECTROSURGICAL TISSUE TREATMENT IN THE PRESENCE OF ELECTRICALLY CONDUCTIVE FLUID 审中-公开
标题翻译：导电流体存在下静电组织治疗的系统与方法
公开(公告)号：WO0009053A9
公开(公告)日：2002-08-22
申请号：PCT/US9918289
申请日：1999-08-11
申请人： ARTHROCARE CORP
发明人： BAKER MICHAEL A , BRUNELL STEPHEN M , WOLOSZKO JEAN , UNDERWOOD RONALD A , THAPLIYAL HIRA V , EGGERS PHILIP E
IPC分类号： A61B18/12 , A61B17/00 , A61B17/22 , A61B18/00 , A61B18/14 , A61B19/00 , A61F2/02 , A61F2/06 , A61F2/84 , A61M1/00 , A61M3/02 , A61M25/01 , A61F7/12
CPC分类号： A61B18/12 , A61B18/042 , 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 electro-surgical probe (20) or catheter is positioned adjacent the target site so that one or more active electrode(s) (120) are brought into contact with, or close proximity to, a target tissue in the presence of electrical conductive fluid. High frequency voltage is then applied between the electrode terminal(s) (120), and one or more return electrode(s) (112) to 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 penetrates 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. 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等离子体，用于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（20）或导管邻近靶位点定位，使得一个或多个有效电极（120）在存在时与目标组织接触或接近的导电流体。然后在电极端子（120）和一个或多个返回电极（112）之间施加高频电压以产生与有效电极相邻的等离子体，并且至少在体积上去除或消融目标组织的一部分。高频电压以足够的能量渗透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，电子原子碰撞释放更多的电子。该过程直到血浆含有足够的能量来分解组织分子，引起分子解离和靶组织消融。

8. 发明申请

WO9956646A9 SYSTEMS AND METHODS FOR ELECTROSURGICAL TREATMENT OF THE DIGESTIVE SYSTEM 审中-公开
标题翻译：用于静电处理系统的方法和系统
公开(公告)号：WO9956646A9
公开(公告)日：2000-11-16
申请号：PCT/US9910062
申请日：1999-05-06
申请人： ARTHROCARE CORP
发明人： HOVDA DAVID C , THAPLIYAL HIRA V , EGGERS PHILIP E
IPC分类号： A61B17/24 , A61B17/00 , A61B18/00 , A61B18/12 , A61B18/14 , A61F2/02 , A61M1/00 , A61M3/02 , A61B17/39
CPC分类号： A61B18/148 , A61B18/1206 , 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 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00791 , A61B2018/00827 , A61B2018/00875 , A61B2018/00982 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1467 , A61B2018/1472 , A61B2018/162 , A61B2018/165 , A61B2218/002 , A61B2218/007 , A61F2/2493 , A61M3/0283
摘要： The present invention provides systems and methods for selectively applying electrical energy to a target location within the gastrointestinal tract, such as the lower esophageal sphincter (LES). In one aspect of the invention, high frequency voltage is applied between the electrode terminal (504) and one or more return electrode (506) to remove a small tissue segment, channel or hole from the region near or in the LES to shrink the turbinates and prevent swelling. The high frequency voltage may be selected to effect a small amount of thermal damage to the walls of the channel or hole to facilitate the formation of scar tissue without extending the thermal damage beyond the immediate region of the target site. In another aspect, the high frequency voltage is selected to contract collagen fibers within the LES to improve its tone, thereby reducing the frequency of reflux.
摘要翻译：本发明提供了用于选择性地将电能施加到胃肠道内的目标位置（例如食管下括约肌（LES））的系统和方法。在本发明的一个方面，在电极端子（504）和一个或多个返回电极（506）之间施加高频电压以从LES附近或LES处的区域移除小的组织段，通道或孔，以收缩鼻甲并防止肿胀。可以选择高频电压以对通道或孔的壁产生少量的热损伤，以便于形成疤痕组织，而不会使热损伤延伸超出目标部位的直接区域。另一方面，选择高频电压以收缩LES内的胶原纤维以改善其音调，从而降低回流频率。

9. 发明申请

WO99049799A1 SYSTEMS AND METHODS FOR ELECTROSURGICAL REMOVAL OF CALCIFIED DEPOSITS 审中-公开
标题翻译：用于静电除去计算沉积物的系统和方法
公开(公告)号：WO99049799A1
公开(公告)日：1999-10-07
申请号：PCT/US1999/006808
申请日：1999-03-29
IPC分类号： A61B17/22 , A61B18/12 , A61B18/14 , A61B17/39
CPC分类号： A61B18/1492 , A61B2017/003 , A61B2017/22038 , A61B2018/00119 , A61B2018/0016 , A61B2018/00351 , A61B2018/00422 , A61B2018/00577 , A61B2018/00583 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/1273 , A61B2018/143 , A61B2018/1432 , A61B2018/1472 , A61B2018/162 , A61B2090/3782 , A61B2218/007
摘要： The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's heart to remove calcified deposits, and fibroid material from valve leaflets. The method of the present invention comprises positioning an electrosurgical probe or catheter (10) adjacent the target site so that one or more electrode terminals (58) are brought into at least partial contact or close proximity with the target heart valve. High frequency voltage is then applied between the electrode terminals, and one or more return electrodes (112) to volumetrically remove or ablate at least a portion of the calcified material while minimizing damage to the heart valve, and substantially preserving the elastic fiber layer of the valve leaflets.
摘要翻译：本发明提供了用于选择性地将电能施加到患者心脏内的目标位置以除去钙化沉积物和从瓣膜小叶形成纤维瘤材料的系统和方法。本发明的方法包括将电外科探针或导管（10）定位在靶位置附近，使得一个或多个电极端子（58）与目标心脏瓣膜至少部分接触或接近。然后将高频电压施加在电极端子与一个或多个返回电极（112）之间以体积方式去除或消融钙化材料的至少一部分，同时最小化对心脏瓣膜的损伤，并且基本上保持弹性纤维层阀门传单。

10. 发明申请

WO1998003117A1 PLANAR ABLATION PROBE AND METHOD FOR ELECTROSURGICAL CUTTING AND ABLATION 审中-公开
标题翻译：用于静电切割和排除的平面排列探针和方法
公开(公告)号：WO1998003117A1
公开(公告)日：1998-01-29
申请号：PCT/US1997012334
申请日：1997-07-15
申请人： ARTHROCARE CORPORATION
发明人： ARTHROCARE CORPORATION , EGGERS, Philip, E. , THAPLIYAL, Hira, V.
IPC分类号： A61B17/00
CPC分类号： A61B18/1492 , A61B18/12 , A61B18/1206 , A61B18/14 , A61B18/1402 , A61B18/148 , A61B18/1482 , A61B18/1485 , A61B18/149 , A61B2017/00026 , A61B2017/00084 , A61B2017/00097 , A61B2017/00101 , 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 , A61B2018/00434 , A61B2018/00505 , A61B2018/00577 , A61B2018/00583 , A61B2018/00642 , A61B2018/0066 , A61B2018/00678 , A61B2018/00702 , A61B2018/00726 , A61B2018/00761 , A61B2018/00791 , A61B2018/00797 , A61B2018/00821 , A61B2018/00827 , A61B2018/00875 , A61B2018/00886 , A61B2018/1213 , A61B2018/124 , A61B2018/1253 , A61B2018/126 , A61B2018/1273 , A61B2018/1467 , A61B2018/1472 , A61B2018/1497 , A61B2018/162 , A61B2018/165 , A61B2090/378 , A61B2218/002 , A61B2218/007 , A61F2/2493 , A61M25/0133 , A61M25/0147 , A61M25/0158
摘要： An electrosurgical ablation probe (400) is provided having a shaft with a proximal end portion and a tongue (420) shaped distal end portion sized to fit within confined (e.g., narrow) spaces within the patient's body, such as the spaces around the articular cartilage between the femur and tibia and the spaces between adjacent vertebrae in the patient's spine. The probe includes at least one active electrode (416) integral with or coupled to the tongue shaped distal end portion, and a connector (410) on the proximal end portion for coupling the active electrode to an electrosurgical generator. The tongue shaped distal end portion is substantially planar, and it offers a low profile, to allow access to confined spaces without risking iatrogenic injury to surrounding tissue, such as articular cartilage.
摘要翻译：提供了一种电外科消融探针（400），其具有轴，所述轴具有近端部分和舌状物（420），其形状的远端部分的尺寸被设计成适合于患者体内的限制（例如，狭窄）空间内，例如关节周围的空间股骨和胫骨之间的软骨以及患者脊柱中相邻椎骨之间的间隙。该探针包括至少一个与舌状远端部分一体或联接到舌状远端部分的活性电极（416），以及在近端部分上用于将活性电极耦合到电外科发生器的连接器（410）。舌形的远端部分基本上是平面的，并且其提供低轮廓，以允许进入限制空间，而不会对周围组织（例如关节软骨）造成医源性损伤。

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