Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: The invention relates to an access system 1 for a medical device, which system has a housing body 21 in which an inner pipe portion 22 for transporting a medical fluid is formed, which portion is enclosed by an outer pipe portion 24 so as to form an empty space 23 for receiving a disinfectant fluid, the housing body 21 having an opening 25 that can be closed by a closure element. The access system 1 according to the invention is characterised in that a measuring electrode 30 and at least one counter electrode 31, 32 are arranged in the housing body 21 such that the measuring electrode 30 interacts with the counter electrode via the empty space 23. The measuring electrode 30 allows an electrical signal to be input such that a current flowing between the measuring electrode and the counter electrode or a voltage applied between the measuring electrode and the counter electrode can be evaluated.

Abstract: A proposed aerostatic bearing arrangement for moving a device on a base structure, particularly in a vacuum environment, has at least one aerostatic bearing element comprising a bearing body having a load-carrying zone and a suction area. An electrostatic preloading unit having at least one electrode is associated with the at least one aerostatic bearing element, and a voltage can be applied to the electrode in such a way that a force component is generated in direction of the surface normal of the bearing body of the aerostatic bearing element.

Abstract: A table system for vacuum application has a base plate and a moving table guided by aerostatic bearing units. The bearing units (10) are connected to supply lines and suction lines for supplying and extracting the gas required for the operation of the bearing units and are provided in each instance with a sealing system having at least one stage and comprising suction channel and sealing gap for sealing relative to the vacuum. The table system is characterized in that the aerostatic bearing units (10) are constructed at least partially as swivel joints, and a push rod (4) which is actuated by a drive (5) for guiding the moving table laterally is connected to the rotating part (21) of each swivel joint, and in that the push rods (4) are hollow and constitute a component part of the suction lines for extracting the operating gas.

Abstract: The present invention relates to a blood treatment device, in particular a dialysis machine, with at least one adjusting means by means of which the blood pump delivery rate can be adjusted, with detection means for detecting at least two physical attributes, wherein the same each are a physical attribute of a patient to be treated with the blood treatment device, and wherein the blood treatment device is formed such that by means of the adjusting means the blood pump delivery rate can be adjusted and/or limited with reference to the detected at least two physical attributes. Furthermore, the present invention relates to a method for adjusting operating parameters of a blood treatment device.

Abstract: A table for vacuum application which is guided by aerostatic bearing elements, having a fixedly mounted supporting structure and a tabletop which is displaceable in x-direction and y-direction with respect to the fixedly mounted supporting structure by means of slides. The slides are provided with the aerostatic bearing elements for guiding, these aerostatic bearing elements being connected to feed lines for supplying the gas required for the operation of the gas bearings and suction lines for removing this gas. The suction lines comprise at least one variable-length line arrangement having a first pipe member and a second pipe member which penetrate one inside the other without contacting, at least one sealing gap being provided between the pipe members.

Abstract: A table system for vacuum application has a base plate and a moving table guided by aerostatic bearing units. The bearing units (10) are connected to supply lines and suction lines for supplying and extracting the gas required for the operation of the bearing units and are provided in each instance with a sealing system having at least one stage and comprising suction channel and sealing gap for sealing relative to the vacuum. The table system is characterized in that the aerostatic bearing units (10) are constructed at least partially as swivel joints, and a push rod (4) which is actuated by a drive (5) for guiding the moving table laterally is connected to the rotating part (21) of each swivel joint, and in that the push rods (4) are hollow and constitute a component part of the suction lines for extracting the operating gas.

Abstract: A proposed aerostatic bearing arrangement for moving a device on a base structure, particularly in a vacuum environment, has at least one aerostatic bearing element comprising a bearing body having a load-carrying zone and a suction area. An electrostatic preloading unit having at least one electrode is associated with the at least one aerostatic bearing element, and a voltage can be applied to the electrode in such a way that a force component is generated in direction of the surface normal of the bearing body of the aerostatic bearing element.

Abstract: The invention is directed to a table for vacuum application which is guided by means of aerostatic bearing elements, having a fixedly mounted supporting structure and a tabletop which is displaceable in x-direction and y-direction with respect to the fixedly mounted supporting structure by means of slides. The slides are provided with the aerostatic bearing elements for guiding, these aerostatic bearing elements being connected to feed lines for supplying the gas required for the operation of the gas bearings and suction lines for removing this gas. The suction lines comprise at least one variable-length line arrangement having a first pipe member and a second pipe member which penetrate one inside the other without contacting, at least one sealing gap being provided between the pipe members.