Abstract: The inventive device (10) can be used for tissue coagulation and/or tissue ablation. It comprises at least one electrode (16) that serves for generating a spark or plasma jet and is connectable to an electric source (20) for this purpose. The probe (11) is assigned to a measuring device (24) that emits and/or receives light in the proximity of the electrode (16) and determines the distance of the probe (11) from the tissue (36) and/or the tissue temperature and/or the composition of the influenced tissue (36). Preferably the measuring device (24) is operated synchronized with pulses or pauses of the pulse-pause-modulated radio frequency voltage (UHF) of the electrode (16) in order to simultaneously carry out the desired measurements during the operation of the instrument (11) and to feedback control the operation of the instrument (11) based on the gained measurement results.

Abstract: A method for the selective elevation and separation of tissues comprised of multiple layers and a surgical instrument for performing the method. The method may be performed without the requirement of a solid mechanical device insertion or transection through the mucosal layer. In particular, the method and surgical instrument may be used for the selected separation and/or resection of selected portions of benign or malignant tissues (e.g. defining tissue planes, polyp elevation and removal, submucosal tissue tunnelling, endoscopic mucosa resection, etc).

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 ablation device (11) according to the invention is distinguished by a head (20) having a noncircular cross-section and by electrodes (32, 33) being positioned at an acute angle relative to each other. Due to the angular arrangement of the electrodes and the appropriate configuration of the channels (28, 29), there results an approximately fan-shaped plasma beam with which—in particular with the alternating activation of the two electrodes—a wide strip-shaped ablation region can be achieved on hollow organs of living beings. Handling is reliable and simplified, and, compared to existing measures, the treatment time is reduced.

Abstract: A method for the selective elevation and separation of tissues comprised of multiple layers and a surgical instrument for performing the method. The method may be performed without the requirement of a solid mechanical device insertion or transection through the mucosal layer. In particular, the method and surgical instrument may be used for the selected separation and/or resection of selected portions of benign or malignant tissues (e.g. defining tissue planes, polyp elevation and removal, submucosal tissue tunnelling, endoscopic mucosa resection, etc).

Abstract: A preparation instrument comprising an HF-instrument with an electrode that is partially insulated by means of an insulating body, which is combined with a fluid applicator having a channel arranged in the insulating body for the application of a fluid to or into tissue. In some embodiments of the preparation instrument, the electrode is a spatula electrode which is inserted in the insulating body that does not cover sections of the surface of the electrode so that these sections may be in contact with the tissue. The insulating body preferably forms the channel wall that delimits the channel. The insulating body and the electrode may be flexible in order to adapt the form of the insulating body and the electrode, together, to the surgical task.

Abstract: The invention relates to a method for mixing at least two fluids using an externally mixing nozzle for medical purposes, which has at least two outlet channels (10, 20) and at least two inlet openings (13, 23) with different or identical cross-sections, wherein two fluids with different volumetric flows and/or different viscosity are sprayed, and wherein the ratio of the cross-sections of the inlet channels (13, 23) and/or the outlet channels (10, 20) corresponds to the ratio of the volumetric flows so that the fluids flow with substantially identical flow speeds through the outlet channels (10, 20) and/or the inlet openings (13, 23). The invention furthermore relates to an externally mixing nozzle, a medical instrument and a medical device for spraying substances, in particular biological material.

Abstract: The ablation system (10) according to the invention works with an ablation probe (12, 12a) that comprises two alternatingly working spark plasma electrodes (31, 32). They generate a plasma beam (47, 48) having a non-circular cross-section, which beam is to be guided—transversely with respect to the large longitudinal axis of its preferably oval cross-section—over the tissue to be ablated, in particular the mucosa (14). In doing so, it is possible to treat large-area tissue regions by means of a reliable and easily controllable procedure.

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 transparent pane having at least one transparent substrate and at least one an electrically conductive coating on at least one surface of the transparent substrate. The electrically conductive coating has at least two functional layers arranged one on top of another. Each functional layer contains: a layer of optically highly refractive material; a smoothing layer above the layer of optically highly refractive material; a lower adapting (matching) layer above the smoothing layer; an electrically conductive layer above the lower adapting layer; and an upper adapting (matching) layer above the electrically conductive layer. The lower adapting layer and/or the upper adapting layer contain a homogeneously distributed getter material. At least one lower adapting layer and/or upper adapting layer containing the getter material is in direct contact with the electrically conductive layer.

Abstract: A tissue fusion instrument having electrodes that are only connected in a punctiform manner to their electrode carrier such that they are electrically conducting and thus, heat-conducting. As a result, heat transfer from the electrode to the respective electrode carrier is restricted. This, on one hand, benefits the desired surgical outcome and, on the other hand, prevents parasitic heating of the surgical instrument and concomitant damage to surrounding tissue.

Abstract: An electrosurgical device for recognizing tissue by means of spectral analysis of the light generated at an electrode. An acoustic or optical indicator device displays the tissue type permanently or when detecting certain tissue. Indicators, in particular optical indicators, are arranged in the application field of view, so as to support the user in response to making an incision.

Abstract: A hemostasis instrument for actively stopping the bleeding, in particular after an open, laparoscopic, or endoscopic operation on a patient, having several hemostasis components. The hemostasis instrument has at least the following hemostasis components: a thermal hemostasis device for tissue coagulation by producing a temperature above the coagulation temperature of biological tissue by means of a coagulation electrode; a biochemical hemostasis device for producing a silent electric discharge by means of at least one discharge electrode, and an insulating device, wherein the insulating device is arranged between the discharge electrode and the tissue to be treated; a supplying device for supplying substances that influence blood clotting to the tissue to be treated; and a supply device for supplying noble gas to the tissue to be treated.

Abstract: The invention relates to the processing of fluid biological media, especially of culture media or cell- or virus suspensions, potentially containing active pathogens, with the aim of inactivating these pathogens and/or modifying ingredients in these biological media by thermal or radiological treatment.

Abstract: The device comprises an endoscope shaft through which extends a working channel ending at an outlet side of the shaft. A guiding element extends through the working channel, said guiding element being preferably guided in longitudinal direction in and along the working channel. The device is set up in such a manner that the distal end section of an instrument extending in longitudinal direction next to the shaft can be moved alongside the shaft beyond the outlet side in order to move the working section of the instrument away from the outlet side so as to lengthen the distal end section of the device. The instrument is coupled to the guiding element in order to guide the working section of the instrument in a transverse direction away from the outlet side in a region opposite the outlet side in order to work in the region with the instrument.

Abstract: An electrosurgical device for recognizing tissue by means of spectral analysis of the light generated at an electrode. An acoustic or optical indicator device displays the tissue type permanently or when detecting certain tissue. Indicators, in particular optical indicators, are arranged in the application field of view, so as to support the user in response to making an incision.

Abstract: The instrument according to the invention for electrosurgically impacting biological tissue comprises an electrode (18) as well as a light guide (21), which is connected to a light inlet window (19), which is formed by means of a fluid body (27). The light guide is connected to a light analysis device (13), so as to absorb the light, which is generated at the electrode (18) in response to the HF surgery and so as to supply it to the light analysis device (13). The light inlet window (19) is arranged at the point of origin of the light, namely immediately at the electrode, that is, at the spark, which is generated. An adulteration of the absorbed light by means of smoke or particle deposition on the light inlet window (19) can virtually be avoided.

Abstract: A sealing station for a packaging machine, the sealing station may be a tray sealer. The sealing station includes an upper die with a sealing plate and a lower die with a tray holder for receiving at least one packaging tray to be sealed. A cutting blade is arranged within the sealing station, and cuts a lid for closing the packaging tray out of a top film. The cutting blade has an endless cutting edge for cutting out the lid along its contour. The cutting blade includes a first and a second blade section, for cutting out a first and second section of the contour of the lid respectively. The second blade section may produce a tear-off corner in the lid projecting beyond the edge region. The sealing station may include a first clamping jaw on the sealing plate, and a second clamping jaw on the tray holder.

Abstract: A cryosurgical instrument includes a feed line for conveying fluid into an expansion chamber. The feed line has a capillary line section that terminates in the expansion chamber and forms an aperture for the fluid to undergo the Joule-Thomson effect. The flow cross-section of the feed line decreases in at least one transition section of the feed line in the form of a funnel. Following each transition section there preferably follows a step section, in which latter section the flow cross-section is preferably largely constant. The last step section is preferably formed by the capillary line section. Due to the acceleration of the fluid in the transition sections and the abating of pressure fluctuations in the capillary tube section and, optionally in the additional step sections, the expansion range in the expansion chamber is increased, without impeding the backflow of the expanded gas out of the expansion chamber.