公开(公告)号：WO1996039085A1

公开(公告)日：1996-12-12

申请号：PCT/IB1996000547

申请日：1996-06-03

Applicant: VALLEYLAB INC.

Inventor： VALLEYLAB INC. ,  EGGLESTON, Jeffrey, L. ,  ORSZULAK, James, H. ,  SODNICAR, Matthew, J.

IPC: A61B17/39

CPC classification number: A61B18/1206 ,  A61B18/1442 ,  A61B2018/00875

Abstract: A control system (10) and method for the operation of neurosurgical bipolar electrodes (11) provides a source of high frequency energy (13') connected to bipolar electrodes (11). Contacting surfaces are on the bipolar electrodes (11) of highly electrically conductive material. A current transducer attached to the source of high frequency energy (13') measures (20) the RMS current applied between the contact surfaces (25). A current transducer attached to the source of high frequency energy (13') provides a signal (26) correlated to the instantaneous values of the RMS voltage between the contacts. A control connects to the source of high frequency energy (13') for initially regulating the RMS current applied by the contacting surfaces in response to the impedance until the signal (19) divided by the measure (20) which is representative of the instantaneous impedance of the load reaches a predetermined value. The control regulates the RMS power applied by the contacting surfaces in accord with the impedance until the signal (19) divided by the measure (20) reaches a predefined value. The control responds to the measure (20) and the signal (19) so that the RMS voltage applied to the load being treated between the contacting surfaces regulated while its impedance is monitored until a prescribed value is reached. The control regulates the RMS voltage applied in accord with the impedance by changing the RMS voltage to a percentage of that applied until the prescribed value is obtained so that the tissues stay moist and are coagulated without drying and carbonizing or turning to eschar.

Abstract translation: 用于神经外科双极电极（11）的操作的控制系统（10）和方法提供连接到双极电极（11）的高频能量源（13'）。 接触表面位于高导电材料的双极电极（11）上。 附接到高频能量源（13'）的电流传感器测量施加在接触表面（25）之间的RMS电流（20）。 附接到高频能量源（13'）的电流传感器提供与触点之间的RMS电压的瞬时值相关的信号（26）。 控制器连接到高频能量源（13'），用于响应于阻抗来初始调节由接触表面施加的RMS电流，直到信号（19）除以表示瞬时阻抗的测量（20） 的负载达到预定值。 控制根据阻抗调节接触表面施加的RMS功率，直到信号（19）除以测量值（20）达到预定值。 控制器响应于测量（20）和信号（19），使得施加到正在被处理的负载的RMS电压在其阻抗被监测之前被调节，直到达到规定的值。 控制通过将RMS电压改变到所施加的百分比直到获得规定值来调节施加的RMS电压，使得组织保持潮湿并且凝固而不干燥和碳化或转向焦痂。

公开(公告)号：WO1996024301A1

公开(公告)日：1996-08-15

申请号：PCT/IB1996000004

申请日：1996-01-03

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  BUYSSE, Steve ,  PLATT, Robert, C., Jr. ,  SCHMALTZ, Dale, F.

IPC: A61B17/36

CPC classification number: A61B18/042 ,  A61B18/1402 ,  A61B2018/1213 ,  A61B2018/126

Abstract: A surgical system (10) has a multiple electrode electrosurgical capability in combination with a gas plasma capability for delivery of electrosurgical energy to the tissue (14) or bodily fluids (15) of a patient (16). The system includes a holder (17), a source of electrical energy (20), electrodes connected to the source of electrical energy (20), one or more passages (22) carried on the holder (17) for transporting ionizable gas (23), and a source of ionizable gas (24) of a selectable flow rate. The gas passages (22) may include at least one electrode extending toward the operative site. The gas passages (22) may include a part (28) that creates a vortex in the gas flow. The electrodes may be coaxially placed in the gas passages (22). The system may also be configured such that two electrodes are each shrouded by the ionized gas so that the electrosurgical energy is conducted to the tissue (14) or bodily fluids (15) of the operative site by passing along conductive pathways (25) in the ionized gas from each electrode. There may also be a dielectric barrier (26) between the conductive pathways (25). The system may also be configured such that one of the multiple electrodes (11) is substantially in contact with the tissue (14) or bodily fluids (15) of the operative site and another of the multiple electrodes (11) is in the circuit through the conductive pathway of the ionized gas flow so that electrosurgical energy is conducted through the tissue (14) or bodily fluids (15) of the operative site and between the electrodes. Methods of manufacture and use for the system are also claimed.

Abstract translation: 手术系统（10）具有多电极电外科能力，与用于将电外科能量递送到患者（16）的组织（14）或体液（15）的气体等离子体能力相结合。 该系统包括保持器（17），电能源（20），连接到电能源（20）的电极，在支架（17）上承载的用于输送可电离气体（23）的一个或多个通道（22） ）和可选流量的可电离气体源（24）。 气体通道（22）可以包括朝向操作部位延伸的至少一个电极。 气体通道（22）可以包括在气流中产生涡流的部分（28）。 电极可以同轴地放置在气体通道（22）中。 该系统还可以被配置为使得两个电极都被电离气体覆盖，使得电外科能量通过沿着导电通路（25）传导到手术部位的组织（14）或体液（15） 来自每个电极的电离气体。 在导电路径（25）之间还可以存在介电阻挡层（26）。 该系统还可以被配置成使得多个电极（11）中的一个基本上与操作部位的组织（14）或体液（15）接触，并且多个电极（11）中的另一个在电路中 电离气体的导电路径流动，使得电外科能量通过手术部位的组织（14）或体液（15）和电极之间传导。 还要求保护该系统的制造和使用方法。

公开(公告)号：WO1996019152A1

公开(公告)日：1996-06-27

申请号：PCT/IB1995001094

申请日：1995-12-04

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  BECKER, Daniel, J.

IPC: A61B17/39

CPC classification number: A61B18/1233 ,  A61B18/16

Abstract: A neutral electrode, consisting of two parts (20, 21), is continuously monitored by an adaptive monitoring system to guarantee conditions of optimal electrical contact with the patient's skin in order to prevent burns. A special adaptive signal generator produces a signal coupled between the two parts of the return electrode by means of an insulation transformer (10). Current and applied voltage are (38) continuously monitored for phase differencies which in turn pilot a phase locked oscillator. The continuous adaption of the generated frequency by the above described feed back phase controlled loop allows to obtain an optimal testing frequency for each patient electrode combination. The optimal frequency is then obtained when the phase difference between test voltage and current is minimal.

Abstract translation: 由两部分（20,21）组成的中性电极通过自适应监测系统连续监测，以保证与患者皮肤最佳电接触的状况，以防止灼伤。 特殊的自适应信号发生器通过绝缘变压器（10）产生耦合在返回电极的两个部分之间的信号。 电流和施加电压（38）连续监测相位差，从而导致锁相振荡器。 通过上述反馈相位控制环路连续适应所产生的频率，可以获得每个患者电极组合的最佳测试频率。 当测试电压和电流之间的相位差最小时，得到最佳频率。

公开(公告)号：WO1995026562A1

公开(公告)日：1995-10-05

申请号：PCT/IB1995000132

申请日：1995-03-03

Applicant: VALLEYLAB INC.

Inventor： VALLEYLAB INC. ,  HORNER, Glenn, A. ,  LADTKOW, James, R. ,  PETERSEN, Richard, W.

IPC: H01H11/00

CPC classification number: H01H11/0056 ,  A61B2018/00928 ,  H01H1/585 ,  H01H9/06 ,  H01H2300/014

Abstract: An insulating switch base (16) with a top (17), bottom (18) and an edge (19) has configured openings (20) through the top (17) and one edge (19) for a conductor. A conductive switch (10) lead frame (22) has proximal ends (24) with insulation displacement connectors (25) bent in the openings. A resilient member (26) on the frame has a moveable contact and is conductively associated with a connector. A contoured arm (27) on the frame is distal of but conductive with another connector. The arm is spaced from the member as an open contact capable of momentary engagement. A frangible area (28) on each frame is between the member and the arm. Recesses (30) in the top (17) support (41) and retain the frame. A slot (35) and barbs (36) on each connector receive one conductor and secure in an opening after aligned installation in an opening, seating of the frame in its recess and severing the area over a passage in the base. A membrane attaches over the frame and a molding is applied about the membrane leaving the member open. A method of assembling the switch (10) having a cable (13) with conductors with a base. Driving conductors into the openings to bend into sections (21) and pressing the cable (13) into a channel on the base are steps. Forming and installing a frame with contacts (12) and connectors in recesses (30) to hold the frame with contacts (12) normally open but capable of closing are steps. Displacing the insulation on the conductors with connectors while separating the contacts (12) by severing areas of the frame and attaching a membrane over the frame and base are steps. Trimming excess conductors to prevent protruding from the base and encasing the assembled switch (10) in an insulator are steps. A tool for the assembly of base and frame has a support (41) to position and retain the bottom (18) aligned with the frame. An inserter (42) and a holder (43) force and bend each conductor in its section (21). A carrier locates the frame relative to and in alignment with recesses (30) in the top (17). Lugs (45) engage connector apertures (34) to drive each into an opening and chisels (46) cut areas over passages (37) on the base. Preset protuberances engage and set the arm when seating the frame so the dimple (31) engages and sets the switch (10) gap.

Abstract translation: 具有顶部（17），底部（18）和边缘（19）的绝缘开关基座（16）具有穿过顶部（17）的开口（20）和用于导体的一个边缘（19）。 导电开关（10）引线框架（22）具有近端（24），绝缘位移连接器（25）在开口中弯曲。 框架上的弹性构件（26）具有可移动的接触并且与连接器导电地相关联。 框架上的轮廓臂（27）远离但与另一个连接器导通。 臂与构件间隔开，作为能够瞬时接合的开放接触。 每个框架上的易碎区域（28）位于构件和臂之间。 顶部（17）支撑件（41）中的凹槽（30）并保持框架。 每个连接器上的槽（35）和倒钩（36）接收一个导体，并且在对准安装在开口中之后固定在开口中，将框架放置在其凹部中并切断基座中的通道上的区域。 膜连接在框架上，并且围绕膜施加模制件，使构件打开。 一种组装具有电缆（13）的开关（10）的方法，导体具有基座。 驱动导体进入开口以弯曲成部分（21）并将电缆（13）按压到基座上的通道中是步骤。 形成和安装具有触点（12）和凹槽（30）中的连接器的框架，以使具有通常打开但能够关闭的触点（12）的框架是步骤。 通过切断框架的区域并在框架和底座上安装隔膜来分离触点（12），使带有连接器的导体上的绝缘体位移。 修剪多余的导体以防止从基座突出并将组装的开关（10）封装在绝缘体中是步骤。 用于组装底座和框架的工具具有用于定位和保持与框架对准的底部（18）的支撑件（41）。 插入器（42）和保持器（43）在其部分（21）中强制并弯曲每个导体。 载体相对于顶部（17）中的凹部（30）定位框架并与之对齐。 接头（45）接合连接器孔（34）以驱动每个进入开口，并且凿子（46）切割在基座上的通道（37）上的区域。 安置框架时，预设突起接合并设置臂，使得凹坑（31）接合并设置开关（10）间隙。

公开(公告)号：WO9525471A2

公开(公告)日：1995-09-28

申请号：PCT/IB9500051

申请日：1995-01-23

Applicant: VALLEYLAB INC ,  KLICEK MICHAEL S

Inventor： KLICEK MICHAEL S

IPC: A61B18/12 ,  A61B18/00 ,  A61B18/14 ,  A61B17/39

CPC classification number: A61B18/1482 ,  A61B18/1402 ,  A61B2018/00196 ,  A61B2018/00916 ,  A61B2018/00958 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1425

Abstract: A handpiece (11) with a moveable switchable electrode (12) delivers high frequency electrosurgery. The electrode switches (28) from a first monopolar mode with an active electrode (14) extending from the handpice (11) and a patient (13) return electrodes (15a and 15b) to a second bipolar mode with the active and return electrodes (15a and 15b) extending. Electrosurgical generator (16) outputs supply energy to the electrodes. Bipolar terminals (18) supply energy to the electrodes for use in the second mode. An active lead (19a) selectively connects the active output and the active electrode (14). A return lead (20a and 20b) selectively connects the return electrode (15a and 15b) and the return output in the first mode or the return terminal when in the second mode. Terminals connect with wiring to the electrodes in the handpiece (11) to complete the circuit for the second mode. One terminal is on the generator and the other is in the handpiece (11) to connect to the electrodes and complete the circuit for the second mode. The electrode has a control (12') on the handpiece (11) for the surgeon to change circuitry and to position the electrode for each mode. The control (12') and return electrode (15a and 15b) are moveably supported by the handpiece (11). The return electrode (15a and 15b) in the first mode is positioned inside the handpiece (11) disconnected from its terminal. The return electrode (15a and 15b) connects to its terminal when extended from the handpiece (11). The return electrode (15a and 15b) when used in the first mode, has a pair of pads (21) attached to the patient (13) and connected to a monitoring circuit (22) for testing continuity between each pad and the patient (13). The handpiece (11) has an elongated support extending distally. A method of use has steps including providing the handpiece (11) and electrode, switching the electrode from the first mode to the second mode, providing the generator with outputs for supplying energy to the electrodes, having terminals for the electrodes when used in the second mode, including an active lead (19a) selectively in circuit between the active output and electrode and including a return lead (20a and 20b) selectively in circuit between the return electrode (15a and 15b) and output when in the first mode or the terminal when in the second mode.

Abstract translation: 具有可移动可切换电极（12）的手持件（11）提供高频电外科手术。 来自第一单极模式的电极开关（28）具有从手持器（11）延伸的有源电极（14）和患者（13）将电极（15a和15b）返回到具有有源和返回电极的第二双极模式 15a和15b）延伸。 电外科发生器（16）向电极输出能量。 双极端子（18）向第二模式中的电极供应能量。 有源引线（19a）有选择地连接有源输出和有源电极（14）。 当处于第二模式时，返回引线（20a和20b）选择性地连接第一模式中的返回电极（15a和15b）和返回输出端。 端子连接到手机（11）中的电极的布线，以完成用于第二模式的电路。 一个端子在发电机上，另一个端子在手持件（11）中，以连接到电极并且完成用于第二模式的电路。 电极在手持件（11）上具有控制（12'），用于外科医生改变电路并且为每个模式定位电极。 控制器（12'）和返回电极（15a和15b）由手持件（11）可移动地支撑。 第一模式中的返回电极（15a和15b）位于从其端子断开的手持件（11）的内部。 当从手持件（11）延伸时，返回电极（15a和15b）连接到其端子。 当在第一模式下使用时，返回电极（15a和15b）具有附接到患者（13）并且连接到监测电路（22）的一对垫（21），用于测试每个垫和患者（13）之间的连续性 ）。 手持件（11）具有向远侧延伸的细长支撑件。 一种使用方法包括提供手持件（11）和电极，将电极从第一模式切换到第二模式，向发生器提供用于向电极提供能量的输出，当在第二模式中使用电极时，具有用于电极的端子 模式，包括在有源输出和电极之间有选择地在电路中的有源引线（19a），并且在返回电极（15a和15b）之间包括选择性地在电路中的返回引线（20a和20b），并且在第一模式或端子 当处于第二模式时。

公开(公告)号：WO1994018893A1

公开(公告)日：1994-09-01

申请号：PCT/US1994001362

申请日：1994-01-25

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  FITTON, Lois ,  GORMAN, William, J. ,  MAKOWER, Joshua ,  SODICKSON, Aaron

IPC: A61B17/02

CPC classification number: A61B17/29 ,  A61B17/0218 ,  A61B2017/00353 ,  A61B2017/2906 ,  A61B2017/306 ,  A61B2017/3445

Abstract: A minimally invasive retractor and dissector (10) for internal surgical use on a patient has a tubular support (11) for passing into the body; the tubular support (11) has a passage (16) for access along an axis "A" thereof during operative procedures on the patient's internal tissue. A proximal end (12) on the tubular support (11) is located outside the patient in position to be accessed by the surgeon when a distal end (13) is inside. One or more jointed articulated members (15) are movably positioned and capable of holding and pulling tissue disposed beyond the distal end (13) and each member has a distal tip (17) to hold tissue. An instrument capable of moving independent of any member functions cooperatively on the tissue and passes through the passage (16) from the proximal end (12) to beyond the distal end (13) as the members position the tissue. The instrument is a surgical tool and the tissue is maneuvered by the members within the body into a position relative to the tool. A control (19) at the proximal end (12) manipulates the members relative to the axis "A" permitting holding and pulling tissue disposed beyond the distal end (13); the control (19) is capable of moving the instrument independent of the members for operating on the held and maneuvered tissue. A grip (34) manipulates the members and positions the instrument. A method for using the minimally invasive retractor and dissector (10) has the steps of making an opening for a tubular support (11) to pass into the body, leaving the proximal end (12) on the tubular support (11) outside the body, positioning the distal end (13) thereof inside, and moving members carried on the tubular support (11). Holding and pulling tissue disposed beyond the distal end (13) and using the passage (16) for access along the axis thereof for operating on internal tissue are added steps. Another step is moving an instrument in the passage (16) independent of the members.

Abstract translation: 用于患者内部手术使用的微创牵开器和解剖器（10）具有用于进入身体的管状支撑件（11） 管状支撑件（11）具有通道（16），用于在患者内部组织的操作过程中沿其轴线“A”进入。 管状支撑件（11）上的近端（12）位于患者外部的位置，以便当远端（13）在内部时被外科医生接近。 一个或多个接合的铰接构件（15）可移动地定位并且能够保持和拉动设置在远端（13）之外的组织，并且每个构件具有用于保持组织的远侧末端（17）。 当所述构件定位所述组织时，所述仪器能够协调地独立于所述组织上的任何构件功能移动并从所述近端（12）穿过所述通道（16）超过所述远端（13）。 该仪器是外科手术工具，并且组织被身体内的构件操纵到相对于工具的位置。 在近端（12）处的控制器（19）相对于允许保持和拉动设置在远端（13）之外的组织的轴线“A”来操纵构件; 控制器（19）能够独立于用于在被保持和操纵的组织上操作的构件移动仪器。 手柄（34）操纵构件并定位仪器。 使用微创牵开器和解剖器（10）的方法具有使管状支撑件（11）的开口进入身体的步骤，使近端（12）离开身体的管状支撑件（11） 将其远端（13）定位在内部，以及移动构件承载在管状支撑件（11）上。 保持和拉动设置在远端（13）之外并且使用通道（16）沿着其轴线进入以在内部组织上操作的组织被添加。 另一个步骤是在文章（16）中独立于成员移动文书。

公开(公告)号：WO1993013718A1

公开(公告)日：1993-07-22

申请号：PCT/US1992008980

申请日：1992-10-27

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  KLICEK, Michael, Steve

IPC: A61B17/39

CPC classification number: A61B18/1206 ,  A61B18/1402 ,  A61B18/1487 ,  A61B2018/00666 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00738 ,  A61B2018/00761 ,  A61B2018/00779 ,  A61B2018/00875 ,  A61B2018/00892

Abstract: An electrosurgical control (10) for a trocar (11) has a trocar (11) with a cannula (12) with a stylet (13) coaxially fit therein. The stylet (13) is movable relative to the cannula (12) along a common axis. The trocar (11) is shaped for insertion in a direction generally along the axis through tissue in a puncture procedure with its stylet (13). A distal end (15) and a proximal end (16) on the elongate cannula (12) so the distal end (15) enters the tissue while the proximal end (16) remains outside. A tip (17) on the stylet (13) end, near the distal end (15) of the cannula (12), normally extends therebeyond in position to puncture the tissue. The stylet (13) has an energy supply (18) passing from the tip (17) to its opposite end (19) and moves reciprocally relative to the cannula (12) so the tip (17) extends or is fully within the cannula (12). An electrosurgical generator (20) provides energy to the opposite end (19) of the stylet (13) and an electrosurgically active device is a part of the tip (17) and connects to the energy supply (18). A sampling circuit (21) is connected to the electrosurgically active device and responds to changes in energy passing through the energy supply (18) as a function of tissue cut by the electrosurgically active device. The sampling circuit (21) provides a signal relative to the energy supplied and a measuring circuit (22) analyzes the signal to instantly isolate a specific signal therefrom indicative of a significant change in the energy when the tip (17) is not in tissue. A comparator (23) has a settable predetermined threshold amount of energy at which the electrosurgical generator (20) no longer supplies energy. A peak energy level is set by a knob (24) and is compared to the varying signals from the sampling circuit (21). A switch (25) responds to the comparator (23) to disconnect the energy when the threshold is exceeded.

Abstract translation: 用于套管针（11）的电外科控制装置（10）具有套管针（11），其具有套管（12），其具有与其同轴配合的探针（13）。 探针（13）可以沿共同的轴线相对于套管（12）移动。 针刺针（11）成形为沿着穿过组织的大致沿轴线的方向插入，其穿刺过程与其探针（13）形成。 远端（15）和细长插管（12）上的近端（16），使得远端（15）进入组织，同时近端（16）保持在外部。 在套管（12）的远端（15）附近的探针（13）端部上的尖端（17）通常在那里延伸到位置以刺穿组织。 探针（13）具有从尖端（17）到其相对端（19）的能量供应（18），并且相对于套管（12）往复运动，使得尖端（17）完全延伸到插管内 12）。 电外科发生器（20）向探针（13）的相对端（19）提供能量，并且电外科活动装置是尖端（17）的一部分并且连接到能量供应源（18）。 采样电路（21）连接到电外科活动装置，并响应经由能量供应（18）的能量的变化，其作为由电外科活动装置切断的组织的函数。 采样电路（21）提供相对于所提供的能量的信号，并且测量电路（22）分析信号以立即隔离其中指示当尖端（17）不在组织中时能量的显着变化的特定信号。 比较器（23）具有电外科发生器（20）不再供应能量的可设定的预定阈值能量。 峰值能量水平由旋钮（24）设定，并与来自采样电路（21）的变化信号进行比较。 当超过阈值时，开关（25）响应于比较器（23）以断开能量。

公开(公告)号：WO1991015157A1

公开(公告)日：1991-10-17

申请号：PCT/US1991002087

申请日：1991-03-27

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  BROADWIN, Alan ,  LOGAN, Joseph, Nicholas ,  KUHL, Peter, Joseph

IPC: A61B17/22

CPC classification number: A61B17/22012 ,  A61B18/14 ,  A61B2017/00973 ,  A61B2018/00011 ,  A61B2018/00077 ,  A61B2018/00589 ,  A61B2018/00958 ,  H01H2300/014

Abstract: An improved devices for delivering RF current to the operating tool (6) of an ultrasonic surgical apparatus which comprises a switch module for selecting said RF current, an electrically conducting metal band (18) connected to the switch module and an electrically conductive O-ring (19) in electrical contact with the metal band and located around the acoustic connecting member (5) of the apparatus.

Abstract translation: 一种改进的用于将RF电流传送到超声手术装置的操作工具（6）的装置，其包括用于选择所述RF电流的开关模块，连接到开关模块的导电金属带（18）和导电O形环 （19）与金属带电接触并且位于设备的声学连接构件（5）周围。

公开(公告)号：WO1997011649A1

公开(公告)日：1997-04-03

申请号：PCT/IB1996000619

申请日：1996-06-28

Applicant: VALLEYLAB INC.

Inventor： VALLEYLAB INC. ,  ARTS, Gene, H. ,  CARR, Jan, E. ,  KUK-NAGLE, Karen, T. ,  LONTINE, Michael, D. ,  MILLBERG, Brian, A.

IPC: A61B17/39

CPC classification number: A61B18/1402 ,  A61B18/1233 ,  A61B2018/00107 ,  A61B2018/1412

Abstract: A design and method of manufacture are disclosed for an electrosurgical electrode (10) with a silicone coating. The coating resists the build-up of eschar. The silicone material is thick enough in the flat area of the blade to withstand the electrosurgical voltage without breakdown. The electrosurgical current path is primarily through the blade edges (15) and tip. The flat of the blade remains insulated under most conditions. The relatively thick coating also provides high tear strength and added durability. The composition of the electrode (10) coatings may include silicone elastomers (11) in the form of adhesives, dispersions, or liquid rubbers. The coating composition may also contain adhesion promoters, heat stabilizers, plasticizers, release enhancers, cross-linking agents, and colorants. Several methods of manufacture are illustrated by way of examples.

Abstract translation: 公开了一种具有硅氧烷涂层的电外科电极（10）的设计和制造方法。 涂层可抵抗焦痂的积聚。 硅树脂材料在叶片的平坦区域中足够厚，以承受电外科电压而不会破裂。 电外科电流路径主要穿过叶片边缘（15）和尖端。 在大多数条件下，刀片的平面保持绝缘。 较厚的涂层也提供高撕裂强度和增加的耐久性。 电极（10）涂层的组成可以包括粘合剂，分散体或液体橡胶形式的硅氧烷弹性体（11）。 涂料组合物还可以含有粘合促进剂，热稳定剂，增塑剂，释放促进剂，交联剂和着色剂。 通过实施例说明了几种制造方法。

公开(公告)号：WO1997011648A2

公开(公告)日：1997-04-03

申请号：PCT/IB1996000618

申请日：1996-06-28

Applicant: VALLEYLAB INC.

Inventor： VALLEYLAB INC. ,  BECKER, Daniel, J. ,  KLICEK, Michael, S.

IPC: A61B17/39

CPC classification number: A61B18/1206 ,  A61B2018/00875

Abstract: A constant power control circuit (107) for an electrosurgical generator (101) and a method for maintaining the electrical power output of an electrosurgical generator (101) at a generally constant value throughout a given tissue impedance range are disclosed. The constant power control circuit (107) and the method recognize and use the unique and simple linear characteristics associated with certain electrosurgical generator (101) designs to monitor and control the electrical power output without having to calculate or monitor the actual output power. The constant power control circuit (107) includes a current sampling circuit (115), a linear conversion circuit (117), and a feedback correction circuit (119). The constant power control circuit (107) may also include protection circuitry that prevents the electrosurgical generator (101) from being over-driven during high and/or low impedance loading (121), and reduces the severity of exit sparking by providing a quick response to high impedance indications while nonetheless maintaining increased power levels throughout a preset, nominal impedance range. The constant power control circuit (107) and method may be included as an integral part of the overall electrosurgical generator's (101) circuitry, or may be embodied as a separate unit that connects to, and controls, an electrosurgical generator (101). The constant power control circuit (107) and method may be embodied through a variety of analog and/or digital circuit components or arrangements, including software running on computational and memory circuitry.

Abstract translation: 公开了一种用于电外科发生器（101）的恒定功率控制电路（107）和用于在整个给定组织阻抗范围内将电外科发生器（101）的电功率输出维持在大致恒定值的方法。 恒定功率控制电路（107）并且该方法识别和使用与某些电外科发生器（101）设计相关联的独特且简单的线性特征来监测和控制电功率输出，而不必计算或监测实际的输出功率。 恒定功率控制电路（107）包括电流采样电路（115），线性转换电路（117）和反馈校正电路（119）。 恒定功率控制电路（107）还可以包括防止电外科生成器（101）在高阻抗和/或低阻抗负载（121）期间被过驱动的保护电路，并且通过提供快速响应来降低出口火花的严重性 到高阻抗指示，同时在预设的标称阻抗范围内保持增加的功率水平。 恒定功率控制电路（107）和方法可以被包括作为整个电外科生成器（101）电路的组成部分，或者可以被实施为连接到电外科发生器（101）并且控制电外科发生器（101）的单独单元。 恒定功率控制电路（107）和方法可以通过各种模拟和/或数字电路组件或布置来实现，包括在计算和存储器电路上运行的软件。