Abstract: The instrument comprises a jaw arrangement with two jaws that have, on their side facing the counter-electrode arrangement, rounded or flat electrode surfaces. The counter-electrode arrangement comprises at least one counter-electrode surface that may be rounded or flat. One of the electrode surfaces has a band edge preferably bordered by an insulator on one side, said band edge being adjacent to the adjacent electrode surface of the jaw arrangement. The counter-electrode surface has a band edge adjacent to the insulator facing the band edge of the one electrode surface. The band edges of the electrode surfaces acting as the coagulation surfaces are close enough such that they form cutting edges that develop a cutting effect with low voltages that are otherwise suitable only for coagulation. Accordingly, it is possible to provide fusion instruments that are extremely delicate, display lower thermal inertia and an excellent fusion and cutting effect.

Abstract: The invention relates to an instrument head, comprising: an exit opening (23); a first feed line (11) for the feed of a first fluid; a second feed line (12) for the feed of a second fluid; a reservoir (24) for storing the fluid fed via the second feed line (12); wherein the reservoir (24) is in fluid communication with the first feed line (11) and/or is adapted to be brought in fluid communication with the first feed line (11) via at least a valve (25) arranged in the instrument head, to deliver fluid stored in the reservoir (24) via the exit opening (23).

Abstract: The invention relates to a supply system having at least one outlet for connecting to an applicator instrument, and having a controller (51) that controls at least one valve (50, 50?, 50?, 50??) such that, within an application time interval of less than 4 s, in particular less than 2 s: a) a first fluid during at least a first delivery interval (T1) with a first pressure (ph) is conveyed in a first feed line (11); b) a second fluid during a second delivery interval (T2) following the first conveying interval (T1) is conveyed with a second pressure (pz) in a second feed line (23); and c) the first fluid, during at least a third delivery interval (T3), is conveyed with a third pressure (pl) in the first feed line (11).

Abstract: The invention relates to an instrument head, comprising: an exit opening (23); a first feed line (11) for the feed of a first fluid; a second feed line (12) for the feed of a second fluid; a reservoir (24) for storing the fluid fed via the second feed line (12); wherein the reservoir (24) is in fluid communication with the first feed line (11) and/or is adapted to be brought in fluid communication with the first feed line (11) via at least a valve (25) arranged in the instrument head, to deliver fluid stored in the reservoir (24) via the exit opening (23).

Abstract: A biopsate recovery device (16) for recovering a biopsate (20) through an opening (46) with a recovery element (17) for fastening to or adjacent to a working tip (13) of a biopsy instrument (10) is disclosed, wherein the recovery element (17) is set up to—while the working tip (13) is being retracted through the opening (46)—be folded over the biopsate (20) in order to enclose the biopsate during the retraction of the working tip (13) through the opening (46) in order to separate the biopsate (20) from the environment during retraction through the opening (46). As a result of this, the biopsate (20) and/or the environment can be protected against contamination and/or cell transfer and/or germ transfer, and/or the biopsate (20) can be protected against being inadvertently stripped off at the opening (46).

Abstract: The instrument comprises a jaw arrangement with two jaws that have, on their side facing the counter-electrode arrangement, rounded or flat electrode surfaces. The counter-electrode arrangement comprises at least one counter-electrode surface that may be rounded or flat. One of the electrode surfaces has a band edge preferably bordered by an insulator on one side, said band edge being adjacent to the adjacent electrode surface of the jaw arrangement. The counter-electrode surface has a band edge adjacent to the insulator facing the band edge of the one electrode surface. The band edges of the electrode surfaces acting as the coagulation surfaces are close enough such that they form cutting edges that develop a cutting effect with low voltages that are otherwise suitable only for coagulation. Accordingly, it is possible to provide fusion instruments that are extremely delicate, display lower thermal inertia and an excellent fusion and cutting effect.

Abstract: A water jet surgical instrument including a supply line for supplying a cutting fluid and a discharge nozzle for forming and discharging a fluid jet, wherein the fluid jet has a predetermined spread angle and/or a predetermined emergence energy. A jet shaping device is arranged relative to the discharge nozzle such that the fluid jet is able to be adjusted by the jet shaping device with regard to the spread angle and/or emergence energy thereof.

Abstract: The invention relates to an instrument head, comprising: an exit opening (23); a first feed line (11) for the feed of a first fluid; a second feed line (12) for the feed of a second fluid; a reservoir (24) for storing the fluid fed via the second feed line (12); wherein the reservoir (24) is in fluid communication with the first feed line (11) and/or is adapted to be brought in fluid communication with the first feed line (11) via at least a valve (25) arranged in the instrument head, to deliver fluid stored in the reservoir (24) via the exit opening (23).

Abstract: The invention relates to a supply system having at least one outlet for connecting to an applicator instrument, and having a controller (51) that controls at least one valve (50, 50?, 50?, 50??) such that, within an application time interval of less than 4 s, in particular less than 2 s: a) a first fluid during at least a first delivery interval (T1) with a first pressure (ph) is conveyed in a first feed line (11); b) a second fluid during a second delivery interval (T2) following the first conveying interval (T1) is conveyed with a second pressure (pz) in a second feed line (23); and c) the first fluid, during at least a third delivery interval (T3), is conveyed with a third pressure (pl) in the first feed line (11).

Abstract: An electrosurgical assembly is disclosed having an electrosurgical instrument, a detection device for detecting a predetermined constituent of the atmosphere in the region of a treatment site and a treatment unit, which can be connected to the instrument and a current generator for providing RF energy. The treatment unit includes a mechanism for influencing the treatment process depending on an output signal of the detection device.

Abstract: A surgical instrument including an injection device and a dosing device. These devices are designed such that a predetermined amount of an adhesive or an adhesive containing filler can be injected into a sealing section of the blood vessel. The blood vessel can then be cut at the filled point and is sealed on both sides.

Abstract: An electrosurgical assembly is disclosed having an electrosurgical instrument, a detection device for detecting a predetermined constituent of the atmosphere in the region of a treatment site and a treatment unit, which can be connected to the instrument and a current generator for providing RF energy. The treatment unit includes a mechanism for influencing the treatment process depending on an output signal of the detection device.

Abstract: A cryosurgical instrument for obtaining a tissue sample with a probe, including the probe including a probe head onto which the tissue sample is frozen and a probe shank for guiding the probe head to the tissue sample, a supply means for supplying a fluid into an expansion chamber configured such that supplied fluid expands therein for cooling the probe head, and a removal means connected to the expansion chamber for removing the expanded fluid therefrom via at least one opening on a distal end of the probe to remove the expanded fluid to an outer region outside the probe. A method for cooling a probe head of a cryosurgical probe including supplying a fluid to an expansion chamber near the probe head, expanding the fluid so that heat energy is withdrawn from the probe head, and removing the expanded fluid in a distal region of the probe.

Abstract: A water jet surgical instrument including a supply line for supplying a cutting fluid and a discharge nozzle for forming and discharging a fluid jet, wherein the fluid jet has a predetermined spread angle and/or a predetermined emergence energy. A jet shaping device is arranged relative to the discharge nozzle such that the fluid jet is able to be adjusted by the jet shaping device with regard to the spread angle and/or emergence energy thereof.

Abstract: A surgical instrument including an injection device and a dosing device. These devices are designed such that a predetermined amount of an adhesive or an adhesive containing filler can be injected into a sealing section of the blood vessel. The blood vessel can then be cut at the filled point and is sealed on both sides.

Abstract: An electrosurgical instrument including a protective tube, to be inserted into a working channel of an endoscope, and an electrode disposed within the protective tube. The electrode is movable in a distal direction and a proximal direction inside the protective tube by a control element. By being moved in the distal direction, the electrode can be brought into a deployed position in which the electrode at least partially protrudes from a distal end of the protective tube. The distal end of the protective tube has a closure element with an opening for the passage of the electrode. The opening of the closure element has a maximum internal diameter smaller than the internal diameter of the protective tube and is used for guiding and/or cleaning the electrode.