Abstract: A branch of an instrument comprising a metal part, which is embodied in one piece seamlessly, which comprises the electrode support as well as the electrode plate and connection webs. Preferably, this metal part is produced in an additive production method, for example selective laser melting (SLM). The branches are suitable for instruments for open surgery as well as for laparoscopic and flexible endoscopic instruments.

Abstract: A tool (16) for the coagulation and dissection of biological tissue including a counter-bearing (35) that has at least one recess (37) open toward the outside and/or one or more hollow chambers (63). The recess (37) or the hollow chamber (63) is configured to provide a force/path elasticity characteristic curve with a plateau-like region II, V, during compression and reexpansion. The path section x in which the elasticity characteristic curve indicates the plateau II, IV preferably is as long as the tissue to be dissected is thick, and is, for example, in the range of 0.2 to 1.5 mm. As a result, the force exerted on the tissue during the cutting operation remains substantially constant in the effective work region.

Abstract: An apparatus for supply of coolant, particularly CO2 that is preferably provided in bottles, to cryosurgical instruments. The device may be a mechanical or thermal compression device. A pump may supply the CO2 taken from the bottle in a buffer container with a desired operation pressure. The pressure in the gas bottle can be less than the desired operation pressure. The apparatus includes a tempering device that is configured to bring the coolant to a desired temperature, particularly a temperature that is higher than the temperature in the gas bottle or in another storage container.

Abstract: An instrument (10) provided for simultaneous coagulation and dissection of tissue has tissue receptacles between the cutting electrode and the sealing electrode for the formation of tissue bulges to secure the tissue in the tool during the sealing process. In order to make it possible to form voluminous tissue bulges and to prevent their atrophy, the cutting electrode is supplied by a current limiting component, preferably in the form of a coupling capacitor. Thereby, in particular, in tissue that can be cut through easily, but which requires a long time for sealing, a high degree of process safety is achieved.

Abstract: A surgical tool for performing telesurgical surgical operations such as cutting, shearing, grasping, engaging, or contacting tissue. The surgical tool comprises a pair of jaws cooperatively rotating open and close about an axis of rotation. The jaws further comprise one or more compliant electrodes electrically communicating with a conductor to deliver electrical energy to tissue engaged by the jaws. The electrodes formed of an elastomeric material impregnated with a conductive material or formed atop an elastomeric material allowing a certain amount of flexibility and thereby maintaining more consistent pressure on the tissue when the jaws engage the tissue.

Abstract: A probe that is particularly usable as a radio frequency ablation probe and comprises an inner cooling in order to keep the at least one electrode at the tissue wet and to avoid excessive heating. In the area of the electrode the hose wall of the hose supporting the electrode comprises an increased heat conductivity, whereas apart from that it has a comparably low heat conductivity outside of the electrode carrying distal end section. The increase of the heat conductivity in the distal end section can be achieved by reduction of the wall thickness, by selection of a suitable plastic, by arrangement of heat transfer bodies in the hose wall or by a combination of two or more of these features.

Abstract: A branch is produced by means of an additive 3D production process for producing a metal part, which comprises at least two parts, namely a support section and a functional section. The metal part is a single-pieced part, in which the support section and the functional section are seamlessly interconnected by means of corresponding connecting webs. After the material is applied, the connecting webs are removed.

Abstract: A surgical instrument 10 suitable for sealing tissue includes a tool 15 with at least one branch 16 comprising an electrode unit 35, which consists of a sheet metal part 35. The part 35 is anchored in a positive manner in a plastic body 34. Strip sections 40, 41 of the metal part 35 extend into the plastic body 34, encompassing openings 42, 42 or slits 43, 43a, through which the plastic body 34 extends. A positive anchoring of the sheet metal part 35 in the plastic body 34 and minimizing of the heat introduction into the plastic body 34 is thus attained. The thermal capacity of the sheet metal part 35 and the thermal conductivity of the plastic body 34 are low, so that consistently positive coagulation results are reached even after repeated use in short succession, regardless of the initial temperature of the tissue contact surfaces 36.

Abstract: A sealing instrument (10) including two branches (15, 16) with sealing jaws (19, 20, 36, 37) acted on by a sealing voltage preferably between 80 and 120 volts. Tissue receptacles (53, 54) are separated from one another by a wall-like extension (24), which at its lower edge carries a cutting electrode (31), are defined between the branches (15, 16). A cutting voltage from 300 to 500 volts is applied between a branch (16) and the cutting electrode. When the branches are closed the grasped tissue is sealed simultaneously between the sealing jaws (19, 36 and 20, 37) and is severed by the cutting electrode (31). Even though the tissue is severed completely; for example after 0.3 to 0.5 seconds and the sealing requires more time, the rolls of tissue grasped in the tissue receptacles (53, 54) act as form-fitting protection of the vessel edges in the tool (12).

Abstract: A branch of an instrument comprising a metal part, which is embodied in one piece seamlessly, which comprises the electrode support as well as the electrode plate and connection webs. Preferably, this metal part is produced in an additive production method, for example selective laser melting (SLM). The branches are suitable for instruments for open surgery as well as for laparoscopic and flexible endoscopic instruments.

Abstract: A branch of an instrument comprising a metal part, which is embodied in one piece seamlessly, which comprises the electrode support as well as the electrode plate and connection webs. Preferably, this metal part is produced in an additive production method, for example selective laser melting (SLM). The branches are suitable for instruments for open surgery as well as for laparoscopic and flexible endoscopic instruments.

Abstract: A tool (16) for the coagulation and dissection of biological tissue including a counter-bearing (35) that has at least one recess (37) open toward the outside and/or one or more hollow chambers (63). The recess (37) or the hollow chamber (63) is configured to provide a force/path elasticity characteristic curve with a plateau-like region II, V, during compression and reexpansion. The path section x in which the elasticity characteristic curve indicates the plateau II, IV preferably is as long as the tissue to be dissected is thick, and is, for example, in the range of 0.2 to 1.5 mm. As a result, the force exerted on the tissue during the cutting operation remains substantially constant in the effective work region.

Abstract: An instrument (10) provided for simultaneous coagulation and dissection of tissue has tissue receptacles between the cutting electrode and the sealing electrode for the formation of tissue bulges to secure the tissue in the tool during the sealing process. In order to make it possible to form voluminous tissue bulges and to prevent their atrophy, the cutting electrode is supplied by a current limiting component, preferably in the form of a coupling capacitor. Thereby, in particular, in tissue that can be cut through easily, but which requires a long time for sealing, a high degree of process safety is achieved.

Abstract: A branch is produced by means of an additive 3D production process for producing a metal part, which comprises at least two parts, namely a support section and a functional section. The metal part is a single-pieced part, in which the support section and the functional section are seamlessly interconnected by means of corresponding connecting webs. After the material is applied, the connecting webs are removed.

Abstract: A sealing instrument (10) including two branches (15, 16) with sealing jaws (19, 20, 36, 37) acted on by a sealing voltage preferably between 80 and 120 volts. Tissue receptacles (53, 54) are separated from one another by a wall-like extension (24), which at its lower edge carries a cutting electrode (31), are defined between the branches (15, 16). A cutting voltage from 300 to 500 volts is applied between a branch (16) and the cutting electrode. When the branches are closed the grasped tissue is sealed simultaneously between the sealing jaws (19, 36 and 20, 37) and is severed by the cutting electrode (31). Even though the tissue is severed completely; for example after 0.3 to 0.5 seconds and the sealing requires more time, the rolls of tissue grasped in the tissue receptacles (53, 54) act as form-fitting protection of the vessel edges in the tool (12).

Abstract: A branch of an instrument comprising a metal part, which is embodied in one piece seamlessly, which comprises the electrode support as well as the electrode plate and connection webs. Preferably, this metal part is produced in an additive production method, for example selective laser melting (SLM). The branches are suitable for instruments for open surgery as well as for laparoscopic and flexible endoscopic instruments.

Abstract: A surgical instrument 10 suitable for sealing tissue includes a tool 15 with at least one branch 16 comprising an electrode unit 35, which consists of a sheet metal part 35. The part 35 is anchored in a positive manner in a plastic body 34. Strip sections 40, 41 of the metal part 35 extend into the plastic body 34, encompassing openings 42, 42 or slits 43, 43a, through which the plastic body 34 extends. A positive anchoring of the sheet metal part 35 in the plastic body 34 and minimizing of the heat introduction into the plastic body 34 is thus attained. The thermal capacity of the sheet metal part 35 and the thermal conductivity of the plastic body 34 are low, so that consistently positive coagulation results are reached even after repeated use in short succession, regardless of the initial temperature of the tissue contact surfaces 36.

Abstract: The invention relates to a coupling for a fluid line, wherein an oscillating circuit (5, 9) is present for detecting a properly closed position of an inserted part (13). A tuning device (19) is further provided, by means of which the resonant frequency of the oscillating circuit (5, 9) can be influenced such that the resonant frequency corresponds to a characteristic closure frequency only in the closed position of the insertion part (13). The proper arrangement of the insertion part (13) in the closed position can thereby be detected without contact.

Abstract: A switching valve includes a fluid housing, at least one switching element within the fluid housing, and an actuator outside the fluid housing, wherein the actuator is configured to cause a pulse-like transmission of force on the switching element by means of an impact-like force effect on the fluid housing, so as to move the switching element from a first position to a second position, the switching element in the first position defining a first fluidic state of a fluid path through the fluid housing, and the switching element in the second position defining a second fluidic state of a fluid path through the fluid housing, which second fluidic state differs from the first fluidic state.

Abstract: The invention relates to a coupling for a fluid line, wherein an oscillating circuit (5, 9) is present for detecting a properly closed position of an inserted part (13). A tuning device (19) is further provided, by means of which the resonant frequency of the oscillating circuit (5, 9) can be influenced such that the resonant frequency corresponds to a characteristic closure frequency only in the closed position of the insertion part (13). The proper arrangement of the insertion part (13) in the closed position can thereby be detected without contact.