Abstract: An HF surgical appliance comprising an HF generator having an output circuit, which contains an output transformer and has an output impedance. Output terminals, to which an HF surgical instrument can be connected, are provided, said instrument supplying a high-frequency current with a specific frequency into tissue to treat the same. An additional output circuit containing an additional transformer, which is connected between the output circuit and the output terminals to reduce the output impedance is also provided. In this way, the HF surgical appliance can be operated with a high power output even on loads having low impedance.

Abstract: A bipolar clamp for high-frequency surgery, in particular for coagulating tissue, having at least two bipolar clamping parts which are movable relative to one another, defining a grasping region between an open position and a coagulation position (e.g., closed position) and having electrodes for coagulating tissue that is grasped by the clamping parts in the grasping region. The clamping parts are formed of an electrically conductive core which is surrounded by a thin-layer electrical insulation and the electrodes are arranged on the clamping parts as thin pin electrodes that protrude through the thin-layer electrical insulation into the grasping region.

Abstract: A multifunctional instrument for HF surgical treatment of tissue, in particular for optional cutting, injecting and coagulating tissue is proposed. The multifunctional instrument has the following elements: at least one fluid chamber for receiving a fluid; a temperature control device communicating with said at least one fluid chamber for warming, heating or evaporating a fluid present in said fluid chamber; a temperature controller for controlling the temperature of the fluid present in the said fluid chamber, and at least one fluid outlet port arranged at a distal end of the multifunctional instrument and communicating with the said at least one fluid chamber.

Abstract: A push button of a medical manipulating part comprising: a first, pot-shaped, shell-shaped or box-shaped housing piece, at least some sections of which contain conductive material, with an integrally molded switching spring and a continuous wall, a second housing piece, the shape of which mates with the wall of the first housing piece and is inserted therein in a hermetically sealed manner such that a hollow space is formed between the first and second housing pieces underneath the switching spring and at least one mating contact for the switching spring, said mating contact being hermetically sealed and electrically isolated relative to the first housing piece, being led through the second housing piece and extending into the hollow space underneath the switching spring.

Abstract: A plug system for surgical devices includes a plurality of sockets into which connecting plugs of electrosurgical instruments can be inserted, and a switching matrix having a plurality of switches for connecting at least one of the sockets to at least two different outputs or inputs of an electrosurgery device. A control system having a preselection device for controlling the switching matrix is arranged in the plug system. The switching matrix connects predetermined sockets to predetermined inputs or outputs, depending on data input into the preselection device. The control system includes a storage element for storing a basic configuration of a connection between the sockets and the inputs or outputs of the electrosurgery device. The basic configuration is set if no data is entered into the preselection device, and all switches are open in the basic configuration.

Abstract: A connection cable which allows various high-frequency surgical instruments to be used with various high-frequency surgical devices. The connection cable includes a first connecting means designed for connection to a socket of the high-frequency surgical device and a second connecting means designed for connection to the high-frequency surgical instrument. A programmable memory is provided which is connected to contacts of the first connecting means and controls adjustment of the high-frequency surgical device. The adjustment of the high-frequency surgical instrument is controlled in accordance with stored data sets in order to adapt device settings to the particular high-frequency surgical instrument.

Abstract: An HF surgical appliance comprising an HF generator having an output circuit, which contains an output transformer and has an output impedance. Output terminals, to which an HF surgical instrument can be connected, are provided, said instrument supplying a high-frequency current with a specific frequency into tissue to treat the same. An additional output circuit containing an additional transformer, which is connected between the output circuit and the output terminals to reduce the output impedance is also provided. In this way, the HF surgical appliance can be operated with a high power output even on loads having low impedance.

Abstract: A push button of a medical manipulating part comprising: a first, pot-shaped, shell-shaped or box-shaped housing piece, at least some sections of which contain conductive material, with an integrally molded switching spring and a continuous wall, a second housing piece, the shape of which mates with the wall of the first housing piece and is inserted therein in a hermetically sealed manner such that a hollow space is formed between the first and second housing pieces underneath the switching spring and at least one mating contact for the switching spring, said mating contact being hermetically sealed and electrically isolated relative to the first housing piece, being led through the second housing piece and extending into the hollow space underneath the switching spring.

Abstract: An electrosurgical high frequency (HF) generator comprising a generator circuit that produces an HF current between an active electrode and at least one neutral electrode. During the cutting or coagulating of biological tissue, unwanted tissue heating due to the HF current can be reduced because the electrosurgical HF generator comprises at least one further auxiliary neutral electrode connected in parallel to the neutral electrode.

Abstract: A bipolar clamp for high-frequency surgery, in particular for coagulating tissue, having at least two bipolar clamping parts which are movable relative to one another, defining a grasping region between an open position and a coagulation position (e.g., closed position) and having electrodes for coagulating tissue that is grasped by the clamping parts in the grasping region. The clamping parts are formed of an electrically conductive core which is surrounded by a thin-layer electrical insulation and the electrodes are arranged on the clamping parts as thin pin electrodes that protrude through the thin-layer electrical insulation into the grasping region.

Abstract: A surgical apparatus for facilitating testing nerves during HF surgery. The surgical apparatus comprises a converter for converting a high-frequency treatment current into a nerve stimulating current. A controllable selector switch optionally feeds either the treatment current or the nerve stimulating current to the electrosurgical instrument.

Abstract: An electrosurgical instrument comprising an indicator device for displaying at least one piece of status information regarding a control unit. The indicator device is arranged on the electrosurgical instrument and oriented in the distal direction thereof such that, in an active state, the indicator device illuminates an operation area of the electrosurgical instrument. In use, the indicator device fulfils a dual functions. First, the indicator device provides information and second, it simplifies the medical intervention by illuminating the operation area.

Abstract: The invention relates to a device for contactless communication between a surgical apparatus and at least one surgical instrument. The surgical apparatus comprises a control and evaluation device to which is assigned a writing or reading device, which is connected to an antenna for the apparatus. The instrument is assigned at least one writable and readable memory device, embodied as an RFID transponder, which is connected to an antenna for the instrument, so that data can be exchanged between the writing or reading device of the surgical apparatus and the memory device of the instrument by means of wireless communication.

Abstract: An APC device to simultaneously operate a plurality of instruments for argon plasma coagulation. In order to enable simultaneous connection and operation of several instruments, the APC device provides several instrument hubs to connect the plurality of instruments and to connect a control device to all instrument hubs. The control device controls the amplitude of a high-frequency voltage and operates the APC device such that, on actuation of at least one actuation means and generation of at least one actuation signal, the high-frequency voltage is interrupted for a defined duration and then the high-frequency voltage is set to the ignition voltage level and, after ignition of the plasma on all of the APC instruments for which the actuation means is actuated, the high-frequency voltage is set to the operational voltage level.

Abstract: A connection cable which allows various high-frequency surgical instruments to be used with various high-frequency surgical devices. The connection cable includes a first connecting means designed for connection to a socket of the high-frequency surgical device and a second connecting means designed for connection to the high-frequency surgical instrument. A programmable memory is provided which is connected to contacts of the first connecting means and controls adjustment of the high-frequency surgical device. The adjustment of the high-frequency surgical instrument is controlled in accordance with stored data sets in order to adapt device settings to the particular high-frequency surgical instrument.

Abstract: A safety device for a high-frequency surgery appliance that includes at least one high-frequency generator with an active output and a neutral output to generate a working current, and at least two working connectors. At least one instrument, through which the working current is conducted to a biological tissue, is connected to respective working connectors. The safety device reduces the danger presented by fault currents that may flow through an inactive instrument. The safety device is connected to the active output as well as to the neutral output in such a way that every working connector through which no working current is flowing is connected only to the neutral output.

Abstract: APC devices to operate instruments for argon plasma coagulation are known. They comprise a HF generator to produce a coagulation current, a control device to control an amplitude of a HF voltage and to set a higher ignition voltage in response to an actuation signal and to automatically set a lower operational voltage. An output hub for connection of a (single) instrument is usually provided. To enable simultaneous working with several instruments, it is proposed to provide not only one but several instrument hubs to connect further instruments and to connect the control device to all instrument hubs and to configure it so that, on actuation of at least one actuation element and generation of at least one actuation signal, the HF voltage is interrupted for a defined duration and then the HF voltage is set to the ignition voltage and, after ignition of the plasma on all connected APC instruments, the HF voltage is set to the operational voltage.

Abstract: The invention relates to a method for operating an instrument (30) for use in high-frequency surgery that is connected to at least one device (10) for performing high-frequency surgery. According to the method, operational data of the device (10) is recorded at least during the first use of the instrument (30) that is connected to the device. The operational data is sent to a storage device (33), which is connected to the instrument (30) and in which the operational data is stored. The operational data is sent to a data acquisition device during a resumed or additional use and/or when testing the instrument. The device (10) is set, according to the operational data, during the first use such that the instruments (3) can be operated in the same manner as during the first use and/or the operational data can be evaluated in order to test the instrument (30).