Abstract: The invention relates to a flow limiter (8) for a fluid flowing in an aspiration branch of a surgical system. which fluid is a surgical fluid and has emulsified particles in a surgical intervention, with a limiter element (81) that comprises at least one flow channel arrangement (9a) with at least one main channel (811) and at least one subsidiary channel (812) that opens into the main channel at an angle of greater than or equal to 90°. The invention also relates to a surgical system, in particular an ophthalmic microsurgical system for lens surgery.

Abstract: A tool ratchet for tightening and loosening screws and/or nuts and the like, has a handle and a receiving piece operatively connected with handle via a ratchet mechanism, and with an electric motor, with which torque is transferable to the receiving piece via a non-positive connection, and a coupling for disconnecting the non-positive connection.

Abstract: The invention relates to a phacoemulsification device, comprising: —a hand piece having a cutting tip for emulsifying a lens, wherein the tool holder is provided with piezoelectric elements for deflecting the cutting tip, —a regulator, the input of which is electrically connected to the tool holder, for receiving an actual value that is proportional to the voltage induced on the piezoelectric elements of the tool holder that is constantly oscillating on the natural frequency thereof, said regulator being suitable for comparing the actual value with a predetermined target value, thus determining an actuating variable, —a power amplifier, the input of which is connected to the regulator in order to receive the actuating variable, and the output of which is connected to the tool holder, wherein the tool holder may be actuated simultaneously with the receipt of the actual value and a power output to the tool holder being able to occur, such that a direct feedback coupling may be attained, thus enabling the tool h

Abstract: An ophthalmic surgery system (1) for viewing and measuring optical characteristics of an eye (8), comprises optics (2), an electromechanic displacement mechanism (5), and a controller (3). The optics (2) comprises a first beam path (11) for viewing the eye (8), a second beam path (12) for probing the eye (8) with a probing beam, and a third beam path (13) for detecting a part of a probing beam reflected from the eye (8). The controller (3) is adapted to determine a position of a center of an iris of the eye (8) relative to an optical axis of the first beam path (11a), and to control an actuator of the electromechanic displacement mechanism (5) in order to reposition the second beam path (12) based on the determined position of the center of the iris relative to the optical axis (11a) of the first beam path (11).

Abstract: A handheld power tool is provided with a shiftable gear that has at least two gear steps which are meant to be selected via a user control element disposed adjustably on the housing, which user control element actuates a transmission member that acts upon an adjustable gear component, and the user control element is intended to be adjusted between at least two detent positions that correspond to the gear steps of the gear. The transmission member is intended to be adjusted into the detent positions, which can be transmitted to the user control element via the coupling between the user control element and the transmission member.

Abstract: The invention relates to a hand tool machine protection device for a hand tool machine (12), having at least one operating element (14, 16) and a shut-off unit (18), which brings about a shut-off during a deactivation of the control element (14, 16) by means of at least one shut-off means (24). The invention provides that the hand tool machine protection device comprises an emergency shut-off unit (28), which is provided for an emergency shut-off of an operation of the tool (26) with an activated operating element (14, 16).

Abstract: A process for the selective ring opening of ring-containing hydrocarbons in a feed stream having at least 10% ring-containing hydrocarbons includes contacting the feed stream with a ring opening catalyst containing a metal or a mixture of metals active for the selective ring opening of the ring-containing hydrocarbons on a support material, wherein the support material is a non-crystalline, porous inorganic oxide or mixture of inorganic oxides having at least 97 volume percent interconnected mesopores based on micropores and mesopores, and wherein the ring-containing hydrocarbons have at least one C6 ring and at least one substituent selected from the group consisting of fused 5- or 6-membered rings, alkyl, cycloalkyl and aryl groups.

Abstract: A hand router has a housing (12) and a tool (22) situated in the housing in a rotary drivable fashion, which it is possible to operate in the intended manner by means of a suction air flow, in particular by means of a vacuum cleaner. The hand router is particularly powerful because a radial turbine wheel (32) equipped with intake and outlet gratings (44, 48) is used as the drive. The housing (12) is made up of tube-like sections (13, 14, 15), in particular that can be grasped by an operating hand, which it is possible to connect with one another by means of flanges (36, 38).

Abstract: A tool ratchet for tightening and loosening screws and/or nuts and the like, has a handle and a receiving piece operatively connected with handle via a ratchet mechanism, and with an electric motor, with which torque is transferrable to the receiving piece via a non-positive connection, and a coupling for disconnecting the non-positive connection.

Abstract: A method and system for executing and undoing distributed server change operations for a collection of server objects across multiple target servers in a transaction-safe manner is provided. In one embodiment, server change operations for a collection of server objects, such as files and configuration file entries, are specified in a transaction package. The target servers to which the specified change operation are directed are also identified in the transaction package. Parameter values for each of the identified target servers are specified through a parameter file in the transaction package. The transaction package is sent to the identified target servers, which execute the change operations on the target servers in a transaction-safe manner using these parameter values.

Abstract: The invention relates to a method for receiving and/or transporting substrates, wherein, by means of at least one sensor, a deviation of the position of a substrate, in particular of a substrate arranged in a slot of a container, is detected at least with respect to one degree of freedom and a movement course of at least one receiving device and/or transporting device is determined with the inclusion of said deviation.

Abstract: The present invention relates to a surgical microscopy system, comprising a surgical microscope, a stand comprising a base and a plurality of pivotally connected arms, the surgical microscope being mounted to one of the arms, wherein the pivotally connected arms are arranged to be movable with respect to each other such that the surgical microscope is movable relative to the base, and wherein a conventionally provided lead is replaced by one or more leads fulfilling the function of the single lead together. The present invention also relates to a surgical microscopy system, wherein data or/and energy is transmitted to the surgical microscope by wireless transmission.

Abstract: The invention relates to a method for receiving and/or transporting substrates, wherein, by means of at least one sensor, a deviation of the position of a substrate, in particular of a substrate arranged in a slot of a container, is detected at least with respect to one degree of freedom and a movement course of at least one receiving device and/or transporting device is determined with the inclusion of said deviation.

Abstract: A method and system for executing and undoing distributed server change operations for a collection of server objects across multiple target servers in a transaction-safe manner is provided. In one embodiment, server change operations for a collection of server objects, such as files and configuration file entries, are specified in a transaction package. The target servers to which the specified change operation are directed are also identified in the transaction package. Parameter values for each of the identified target servers are specified through a parameter file in the transaction package. The transaction package is sent to the identified target servers, which execute the change operations on the target servers in a transaction-safe manner using these parameter values.

Abstract: The present invention relates to a surgical microscopy system, comprising a surgical microscope, a stand comprising a base and a plurality of pivotally connected arms, the surgical microscope being mounted to one of the arms, wherein the pivotally connected arms are arranged to be movable with respect to each other such that the surgical microscope is movable relative to the base, and wherein a conventionally provided lead is replaced by one or more leads fulfilling the function of the single lead together. The present invention also relates to a surgical microscopy system, wherein data or/and energy is transmitted to the surgical microscope by wireless transmission.

Abstract: In a fitting (1) for a vehicle seat, in particular a motor vehicle seat, having a first fitting part (5), a second fitting part (8) that is pivotably mounted relative to the first fitting part (5) by way of a backrest bolt (10), a locking pawl that is pivotably mounted on the first fitting part (5) by way of a pawl bolt (13) and that is interacting with the second fitting part (8) to lock the fitting (1), and two braces (49) arranged on the outer side of the first fitting part (5) between the backrest bolt (10) and the pawl bolt (13), the backrest bolt is additionally structure-fixedly supported on the first fitting part (5) and/or a structure part (7).

Abstract: A displaceable support stand (1) includes a support stand base (5) with a support surface (6) which is adapted to rest on the ground, a lifting device for lifting the support stand base (5) and therewith the support stand (1) above the ground and a displacement device which permits displacement of the support stand (1). The lifting and the displacement devices can be embodied by a device for producing an air cushion. A device of that kind can include for example a compressor (18), an accumulator (20) for the power supply for the compressor (18) and air nozzles (16).

Abstract: A hand router having a housing (12) and having a tool (22) situated in it in a rotary drivable fashion, which it is possible to operate in the intended manner by means of a suction air flow, in particular by means of a vacuum cleaner, is particularly powerful because a radial turbine wheel (32) equipped with intake and outlet gratings (44, 48) is used as the drive, the housing (12) being comprised of tube-like sections (13, 14, 15), in particular that can be grasped by an operating hand, which it is possible to connect with one another by means of flanges (36, 38).

Abstract: In a holding arrangement (101) for a medical-optical instrument (103), an electric motor is provided in a rotational joint (111, 119) to compensate a load torque occurring in this rotational joint. This electric motor is supplied with current in correspondence to a detected position of the rotational joint (111, 119). A current control curve required for this purpose is stored in a memory. This current control curve can be determined in that the rotational joints are deflected with the electric motor into predetermined positions and the current demand needed therefor is detected.

Abstract: In a bearing in a vehicle seat, in particular in an automobile seat, having a bearing bolt (25) extending into a hole (43) of an element (23) so that the element (23) is supported on the bearing bolt (25), the hole (43) and/or the bearing bolt (25) have a cross-section that is different from a circle.