Abstract: An electrosurgical generator for an electrosurgical instrument includes a DC voltage supply and a high-voltage inverter that generates a high-frequency AC voltage having a variable voltage and frequency that is output at an output for the connection of the electrosurgical instrument. The inverter is configured as a multilevel inverter and includes a plurality of inverter cells connected in a cascaded manner that are driven by a control device. Thanks to the cascading, switching losses incurred in the power semiconductors are reduced, both in terms of value (through the divided and thus lower voltage) and in terms of frequency (through the reduced switching frequency).

Abstract: An optical connecting device for a surgical instrument including a coupling for connecting first and second optical fiber bundles. The coupling including: a tubular sleeve having an outer surface defining an internal space for receiving an end of the first optical fiber bundle in the internal space of the tubular sleeve; a clamp movably disposed on the outer surface of the tubular sleeve, the clamp having one or more of a first convexity and a first concavity; and a union having one or more of a second convexity and a second concavity. The clamp has a continuous longitudinal opening along its longitudinal extension and on its outer side such that the clamp can be elastically deformed in a radial direction, and the clamp is configured to elastically deform such that one or more of the first convexity and the first concavity engages with one or more of the second convexity and the second concavity of the union.

Abstract: A medical device and a method of operating a medical device, wherein the device includes a medical function assembly, a control assembly, a user interface, and a user information element, configured to display information about a type of the medical device, wherein the control assembly includes a memory element in which different operating parameters for the medical function assembly are storable and wherein the control assembly is configured to control the medical function assembly to perform different medical functions as a function of operating parameters stored in the memory element, wherein the control assembly is further configured to control the user information element to display information about the operating parameters stored in the memory element. The medical device wherein the user information element is configured to continue to reproduce the information after being controlled once by the control assembly, independent of continued control by the control assembly.

Abstract: An optical system having a viewing angle ? relative to a longitudinal axis including: a prism group to deflect incident light by reflection at first and second surfaces including prisms with mutually adjacent boundary surfaces arranged in pairs and separated by a gap, a total reflection of incident light from outside a field of view takes place at a boundary surface between a prism and a corresponding gap, the prism group has a cylindrical envelope (D), and an input-side prism is configured to have a wedge-shape with angle ? and an optical path length ?; an entry surface of the prism has a length L, which is a length of a line of intersection of the entry surface with a plane that is spanned by a central beam path; and the first prism meets the conditions: ?<cos ?·tan ?·D/2 and L<D/cos ?.

Abstract: A method for treating patients who suffer from chronic rhinitis that is efficient and causes fewer adverse effects than known methods. This is achieved by using a handheld surgical instrument, more particularly an electrosurgical applicator, for treatment of hypertrophic nasal conchae and/or for submucosal treatment of the posterior nasal nerve (PNN) in order to reduce at least one cardinal symptom of chronic rhinitis.

Abstract: An electrosurgical handheld device and also a contact body for an electrosurgical handheld device, with which both the required cleanliness and the necessary safety can be obtained. This is achieved by the fact that a contact body for an electrosurgical handheld device for receiving an optical guide and for coupling at least one electrical contact of an electrode instrument of the handheld device has an RF cable, which is fixedly connected to the contact body. By way of this RF cable, an RF voltage can be applied to the electrode instrument via the at least one electrical contact. The other end of the RF cable can be connectable to an RF generator.

Abstract: A video endoscope with lateral viewing direction including a shaft having proximal and distal ends, an objective lens in the distal end, an image sensor, and a main body at the proximal end. Where a first grip rotationally fixed relative to the shaft and the main body to rotate the shaft and the main body to change the viewing direction of the objective lens. A second grip is disposed on the main body to be rotatable relative to the shaft and the main body to maintain a horizontal position of the image sensor when the viewing direction is changed. An annular seal is disposed between the second grip and the main body and/or the first grip. The seal includes a circumferentially wound coil spring having windings oriented such that a surface vector of a surface spanned by a single winding points substantially in a circumferential direction of the seal.

Abstract: A method for identifying a connection between a first channel and at least one second channel located in a rinsing device. The method including: applying a first testing pressure to the first channel; reading in a first pressure signal representing a first pressure in the at least one second channel; and detecting the connection between the first channel and the at least second channel when the first pressure is one or more of at a predetermined first ratio to the testing pressure and above a predetermined first threshold.

Abstract: A cleaning and/or disinfecting device, including: a rinsing container having a rinsing chamber, the rinsing container having a loading opening for loading with washware to be cleaned; a rinsing chamber door, by which the loading opening can be closed in a fluid-tight manner, wherein the rinsing chamber door is a lift door configured to be displaceable translationally in a height direction of the rinsing container; and a drip collector arranged below the rinsing container in the height direction, the drip collector being configured to be displaced translationally in a direction running transversely to the height direction of the rinsing container, the drip collector being configured to be transitioned from a non-use position overlapping with the rinsing container to a use position protruding past the rinsing container on a loading opening side and from the use position back to the non-use position.

Abstract: A surgical robot system including: at least one slave manipulator for handling a surgical instrument within a body of a patient; and a control console, including: at least one master operating unit configured to be manually operated by an operating person to at least control the at least one slave manipulator; a display for displaying information; and at least one switch configured to: couple the at least one master operating unit with the at least one slave manipulator; decouple the at least one master operating unit from the at least one slave manipulator, and when the at least one master operating unit is decoupled from the at least one slave manipulator, couple the at least one master operating unit with the display.

Abstract: An electrosurgical generator comprising two HF generator units, two output transformers, and at least four output terminals for connecting electrosurgical instruments. Together with the associated output transformer and corresponding output terminals, each HF generator unit forms an HF generator module.

Abstract: A video endoscope including: an outer cladding tube, a fiber tube accommodated in the outer cladding tube, wherein the fiber tube has a housing bounding a closed space with a distal end and a proximal end, wherein a front-side window is provided at the distal end of the fiber tube, the fiber tube having an inner tube (for accommodating an imaging sensor , and a heating foil provided between the fiber tube and the inner tube. Where, the heating foil is adapted to heat the front-side window at the distal end of the fiber tube.

Abstract: A reversal system for an endoscope, the reversal system including: first and second outer achromats each comprising at least two lenses, wherein the first and second outer achromats have an outer diameter; first and second inner achromats arranged between the first and second outer achromats, wherein each of the first and second inner achromats comprises at least two lenses; and a holding sleeve for accommodating the at least two lenses of one or more of the first and second inner achromats, wherein the holding sleeve with the at least one of the first and second inner achromats is arranged between the first and second outer achromats.

Abstract: A laryngopharyngoscope retractor system including: a plurality of components including: a base frame with a coupling region and a spatula holder that is adjustable in terms of position and orientation by way of adjusting screws; a spatula that is releasably fastenable in the spatula holder; two cheek holder adapters that are releasably fastenable to the base frame; and two cheek holders, each of which is releasably fastenable to a respective cheek holder adapter, wherein one or more of the base frame, the spatula holder, the spatula, the cheek holder adapter and the cheek holder, in the respective regions provided for the releasable connection to another one of the plurality of components have a visible unique code that corresponds to the corresponding regions on the other of the plurality of components.

Abstract: An electrosurgical generator having connectors for an electrosurgical instrument including a high-voltage generator electrically connected to the connectors and produces a high-frequency alternating current in its activated state and output said high-frequency alternating current via the connectors. The electrosurgical generator has an effective power determination unit including a phase shift determination unit that supplies an output signal representing a phase shift between the current and the voltage of an alternating current output during operation. The phase shift determination unit produces a pulsed DC voltage signal, in which the pulse width reflects a time difference between the zero crossings of the current and the voltage—and consequently the phase shift—and to process the pulsed DC voltage signal by way of a low-pass filter to form a low-pass filter output signal, the magnitude of which depends on the pulse width of the pulses of the pulsed DC voltage signal.

Abstract: An electrode instrument, a surgical handheld device and a production method, by means of which the quality of the aforementioned instruments can be improved. This is achieved by virtue of an electrode instrument for a surgical handheld device having an electrical conductor which is electrically insulated by an insulation in the form of flexible tubing, wherein the conductor is pressed in an electrode carrier, wherein the electrode carrier has a cross section with six pressed sides at the pressed position.

Abstract: Electrosurgical handheld devices are used mainly for endoscopic applications in urology or in gynaecology. However, the field of use of these instruments is not limited to these regions of the human body and instead also includes the treatment of further organs in the lower part of the human abdomen. The invention makes available an electrosurgical handheld device and also a handle, a main body and an adapter, which are particularly easy and cost-effective to produce and which at the same time ensure a laminar flow of the irrigation liquid at the distal end of the handheld device. This is achieved by the fact that a feedthrough extending through a handle is funnel-shaped, wherein a cross section of the feedthrough tapers from a distal side to a proximal side of the handle.

Abstract: A method having: sending, to a spatially separately arranged server device, a configuration request having an item of identification information of the electrosurgical generator; receiving an item of operating information indicative of an operating mode, wherein the operating mode is capable of partially controlling the energy supply of the electrosurgical instrument by the electrosurgical generator; and storing the operating information in a data memory of the electrosurgical generator.

Abstract: In order to flush away local bleeding during surgery with a medical instrument, the instruments are commonly provided with a flushing device. In order to be able to control an inflow and outflow of a flushing liquid, the instruments have a stopcock. In order to achieve the sealing action of the stopcock, the plugs of the stopcock have to be formed with a very high degree of precision. The known production processes for such plugs are very cumbersome and cost-intensive. This provides a plug for a stopcock and a stopcock and a method for producing a plug, by way of which the stated problem is eliminated. This is achieved in that a plug, with a grip part and a cone part, is formed in one part and can be produced in a single process step.

Abstract: A fluid distributor for use with a reprocessing device for reprocessing a surgical instrument having a plurality of channels, including: a routing body having a plurality of connections corresponding to the channels; and a switching body movably disposed in the routing body, the switching body having an interior supply line connected to a fluid reservoir for selectively providing a fluid to one or more of the connections. The switching body can be configured such that, in a first position of the switching body relative to the routing body, the connections of the routing body are each in fluid communication with the supply line of the switching body and in at least a second position of the switching body relative to the fluid routing body less than all of the connections of the routing body are in fluid communication with the supply line of the switching body.