公开(公告)号：WO1995006817A1

公开(公告)日：1995-03-09

申请号：PCT/IB1994000233

申请日：1994-08-03

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  KUHL, Peter, J. ,  LOGAN, Joseph, N.

IPC: F04B43/12

CPC classification number: F04B43/1284

Abstract: An actuating means (107) for a self-adjusting pump head assembly (101), including a variable position pump shoe (102) slideably attached to a base (103), wherein the assembly (101) is used to pump liquides through a tube (104) introduced into a peristaltic pump, including (a) means (107) for translating rotational motion into linear motion, and (b) cranking means (107), including means (107) for automatically compensating for the manufacturing tolerances of a tube (104) introduced into the pump, pivotally attached to both the means (107) for translating and the shoe. The means (107) for automatically compensating preferably includes a pair of links, carrying a helical compression spring (328), pivotally anchored to both the means (107) for translating and the shoe. A peristaltic pump is also described. The pump includes (a) a self-adjusting pump head, including a variable position pump shoe (102) slideably attached to a base (103); and (b) a control for positioning, locking and applying a continuous reaction force on the shoe to compress the tube (104) between the shoe and at least one roller located on the periphery of a mandrel (150), wherein the control further comprises means (107) for translating rotational motion into linear motion, and cranking means (107), including means (107) for automatically compensating for the manufacturing tolerances of a tube (104) introduced into the pump, pivotally attached to both the means (107) for translating and the shoe. The pump may be alternatively characterized as including a disposable manifold (400) safety cartridge (505), removably attached to the base (103), to which the ends of the tube (104) are attached; with the cartridge (505) being formed to include an asymmetrical tie bar (412) that is keyed onto the base (103) to ensure that the cartridge (505) is oriented in an acceptable manner and that the tube (104) introduced into the pump will be properly installed.

Abstract translation: 一种用于自调节泵头组件（101）的致动装置（107），其包括可滑动地连接到基座（103）的可变位置泵瓦（102），其中所述组件（101）用于将液体泵送通过管 （104）引入蠕动泵，包括（a）用于将旋转运动转换成直线运动的装置（107），和（b）起动装置（107），包括用于自动补偿管的制造公差的装置（107） （104）引入泵中，枢转地附接到用于平移的装置（107）和鞋。 用于自动补偿的装置（107）优选地包括一对链节，其承载螺旋压缩弹簧（328），枢转地锚定到两个用于平移的装置（107）和鞋。 还描述了蠕动泵。 泵包括（a）自调节泵头，包括可滑动地连接到基座（103）的可变位置泵靴（102）; 以及（b）用于在鞋上定位，锁定和施加连续的反作用力的控制器，以压缩位于鞋芯和位于心轴（150）的周边上的至少一个辊之间的管（104），其中该控制还包括 用于将旋转运动转换成直线运动的装置（107）和起动装置（107），包括用于自动补偿引入到泵中的管（104）的制造公差的装置（107），其可旋转地附接到装置 ）翻译和鞋子。 可选地，该泵可以包括一个可拆卸地连接到基座（103）的一次性歧管（400）安全套筒（505），管件（104）的端部附接在该基座上。 其中盒（505）被形成为包括键合到基座（103）上的不对称连接杆（412），以确保盒（505）以可接受的方式定向，并且将管（104）引入到 泵将正确安装。

公开(公告)号：WO1993015850A1

公开(公告)日：1993-08-19

申请号：PCT/US1992009322

申请日：1992-11-06

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  ROSE, Emery, S.

IPC: B06B01/02

CPC classification number: A61B17/320068 ,  A61B18/1206 ,  A61B2217/007 ,  A61M3/0279 ,  B06B1/0261 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/76

Abstract: An electrical apparatus for driving an ultrasonic piezoelectric crystal transducer in a surgical handpiece for the fragmentation and aspiration of tissue, which apparatus includes an electronic control loop (12) in combination with a voltage source amplifier (2) having an output which is connected to the piezoelectric crystal transducer (3) with a tuning inductor (4) in parallel. A control system for monitoring the control loop (12) and a component for controlling tissue selectivity are also disclosed.

Abstract translation: 一种用于驱动用于组织的分裂和抽吸的外科手持机械中的超声波压电晶体换能器的电气设备，该装置包括与电压源放大器（2）组合的电子控制回路（12），该电压源放大器（2）具有连接到 压电晶体传感器（3）与调谐电感（4）并联。 还公开了一种用于监测控制回路（12）的控制系统和用于控制组织选择性的部件。

公开(公告)号：WO1997037598A1

公开(公告)日：1997-10-16

申请号：PCT/IB1996000280

申请日：1996-04-04

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  CIMINO, William, W.

IPC: A61B17/32

CPC classification number: A61B17/320068 ,  A61B2017/00141 ,  A61B2017/00146 ,  A61B2017/0015 ,  B06B1/0269 ,  B06B2201/76

Abstract: A single ultrasonic surgical apparatus (10) can provide a substantial cutting effect on tissue, a substantial coagulation effect on tissue, and an appropriate blend of simultaneous cutting and coagulation effects on tissue. The ultrasonic surgical apparatus (10) is comprised of a handpiece (11) which incorporates a transducer (14) and a surgical tool (16), a source of electrical energy (17), a controller (18), and a switch (19). The apparatus may be operated at two frequencies within the ultrasonic spectrum, where the first frequency (22) is selected at the low end of the spectrum for enhanced tissue cutting performance, and the second frequency (23) is approximately three times higher for enhanced tissue coagulation performance. The two frequencies may be operated selectively or concurrently, and may be independently adjustable as to amplitude. The transducer (14) may be composed of magnetostrictive or piezoelectric elements (20 or 21). The surgeon to set the desired amplitude of the mechanical vibrations. The transducer (14) is mounted within the handpiece (11) at a location that corresponds to a vibration node common to both the first frequency (22) and the second frequency (23). Also claimed is a method for use, including the steps of: developing an ultrasonic resonance at a first frequency (22); developing an ultrasonic resonance at a second frequency (23) which is approximately three times greater than the first frequency (22); resonating an ultrasonic transducer (14) at the first frequency (22) concurrently with the second frequency (23); and supporting the transducer (14) where the nodes of vibration at the first frequency (22) are substantially coincident with the nodes of vibration at the second frequency (23).

Abstract translation: 单个超声手术设备（10）可以对组织提供显着的切割效果，对组织具有显着的凝结作用，以及对组织的同时切割和凝血作用的适当混合。 超声手术装置（10）由装有换能器（14）和手术工具（16），电能源（17），控制器（18）和开关（19）的手持件（11）组成 ）。 该装置可以在超声波频谱内的两个频率下操作，其中在频谱的低端选择第一频率（22）以增强组织切割性能，并且第二频率（23）对于增强组织是约三倍 凝血性能。 两个频率可以选择性地或同时地操作，并且可以独立地调节幅度。 换能器（14）可以由磁致伸缩或压电元件（20或21）组成。 外科医生设定所需的机械振动幅度。 换能器（14）安装在手机（11）内的对应于第一频率（22）和第二频率（23）两者共同的振动节点的位置处。 还要求保护的是一种使用方法，包括以下步骤：以第一频率（22）开发超声共振; 以比第一频率（22）大约三倍的第二频率（23）发展超声共振; 与第二频率（23）同时谐振具有第一频率（22）的超声换能器（14）; 并且支撑所述换能器（14），其中所述第一频率（22）的振动节点与所述第二频率（23）处的振动节点基本一致。

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：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：WO1996023448A1

公开(公告)日：1996-08-08

申请号：PCT/IB1996000003

申请日：1996-01-03

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  GRASSO, Kamala, J. ,  KETCHAM, Cliff ,  LEINER, Kevin ,  PACER, Lawrence, K. ,  SANCHEZ, Teresa

IPC: A61B17/39

CPC classification number: A61B18/1402 ,  A61B2218/008 ,  A61M1/008

Abstract: An aspirator attachment (10) for an electrosurgical pencil (11) has an axis and an electrode (12) at a distal end (13) thereof to transmit vacuum to remove fluid from an operative site. A semi-rigid hollow body (14) extends parallel to the axis and is contoured to fit coextensively against the elongate pencil. A body passage (15) has an opening (16) at its distal part (17) that is about the electrode (12) and facing toward the patient. The part conjugates aft of the electrode (12) for generally fluid tight pencil engagement. The opening (16) is scalloped with opposed edges increasing visibility, decreasing tissue trapping and decreasing electrode (12) temperature. A part port (21) between the conjugating end (18) and its opening (16) communicates with the passage (15) and the opening (16). A connector (22) at the body end opposite the opening (16) is shaped for fluid communication with the passage (15) and vacuum. A body center section, between the port (21) and the connector (22) joins them. An offset transition (27) of the body, adjacent the pencil conjugating end (18), has the passage (15) therethrough for connecting the port (21) and the center section and alignment. The passage (15) has a uniform cross sectional area extending therein. A swivel (23) attached to the connector (22) permits relative rotation between the pencil and a vacuum hose. The center section at the connector (22) has a rib (24) to engage the pencil retaining the opening (16) about the distal end (13) and resisting movement. The passage (15) within the center section has a generally D shaped cross section. The pencil has controls along a side thereof and the body mates with the pencil opposite the controls. Methods of combining and using the pencil and aspirator include steps of engaging and nesting them together.

Abstract translation: 用于电外科手术铅笔（11）的抽吸器附件（10）具有在其远端（13）处的轴线和电极（12），以透射真空以从手术部位移除流体。 半刚性中空主体（14）平行于轴线延伸并且被成形为与伸长的铅笔共同配合。 身体通道（15）在其远端部分（17）处具有围绕电极（12）并面向患者的开口（16）。 所述部件将电极（12）的后部共轭，用于大体上流体密封的铅笔接合。 开口（16）扇形化，具有相对边缘，增加可见度，减少组织捕获和降低电极（12）的温度。 共轭端（18）与其开口（16）之间的部分端口（21）与通道（15）和开口（16）连通。 在与开口（16）相对的主体端部处的连接器（22）成形为用于与通道（15）和真空流体连通。 在端口（21）和连接器（22）之间的身体中心部分连接它们。 与铅笔共轭端（18）相邻的本体的偏移转变（27）具有用于连接端口（21）和中心部分并对准的通道（15）。 通道（15）具有在其中延伸的均匀横截面积。 附接到连接器（22）的旋转件（23）允许铅笔和真空软管之间的相对旋转。 连接器（22）的中心部分具有肋（24），用于接合围绕远端（13）保持开口（16）并抵抗运动的铅笔。 中心部分内的通道（15）具有大致D形的横截面。 铅笔沿其一侧具有控制，并且身体与与控件相对的铅笔相配合。 组合和使用铅笔和抽吸器的方法包括将它们接合并嵌套在一起的步骤。

公开(公告)号：WO1996019151A1

公开(公告)日：1996-06-27

申请号：PCT/IB1995000826

申请日：1995-10-02

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  MAKOWER, Joshua ,  ZIEVE, David, A. ,  BARBER, Frank

IPC: A61B17/36

CPC classification number: A61B18/1206 ,  A61B2218/008

Abstract: An electrosurgical generator is equipped with a smoke evacuator which becomes active upon acting either on the foot pedal (16) or on the activation button on the hand piece (32). Evacuation however only takes place when the suction motor (29a) is activated by a trigger device (14) via other components (25, 37, 27) whenever HF current begins to flow. The rate of suction is determined by a smoke detector (42) placed on the smoke passage (30). A similar system can be used for total or partial removal of liquids from the operation site.

Abstract translation: 电外科发生器配备有排烟器，其在作用在脚踏板（16）上或者在手部件（32）上的启动按钮上起作用。 然而，仅当HF电流开始流动时，仅通过其他部件（25,37,27）由触发装置（14）激活抽吸马达（29a）才发生抽空。 抽吸速率由放置在烟道（30）上的烟雾探测器（42）确定。 类似的系统可用于从操作现场全部或部分去除液体。