Abstract: A shaping tool shapes a smooth bone cement surface, in particular for implantation of an artificial acetabulum. The shaping tool has a curvature, whereby the shaping tool has a curved base body and at least two layers, whereby a first layer covers the curvature of the base body at least in part and is connected to the base body in a detachable manner, and a second layer covers the first layer at least in part and is connected to the first layer in a detachable manner. The shaping tool is usable to pre-shape a bone cement for insertion of an artificial acetabulum.

Abstract: Cartridge system for mixing and applying a mix of a medical cement. Cartridges are arranged parallel to each other having and an outlet opening. The cartridges each comprise at least one opening that connect(s) the cartridges to the outlet opening, and the cartridges are bordered laterally through cartridge walls. Each cartridge comprises a feed plunger for expelling starting components of the mix from the cartridges through the openings. The feed plungers are fixedly connected to each other and are fixedly connected to each other through at least one fin. The cartridge walls of the cartridges are connected through the fin(s). The walls comprise slits that are arranged parallel to the cartridge axis, whereby the width of the slits is well-suited for taking up the fin or fins, and the at least one fin moves through regions of the slits when the feed plungers perform a motion in the cartridges.

Abstract: The present invention relates to a paste, a kit, and the use of the paste for mechanical fixation of articular endoprostheses. The paste contains at least one polymer for radical polymerisation, at least one polymer that is soluble in at least one monomer for radical polymerisation, and at least one filling agent that is poorly soluble or insoluble in at least one monomer for radical polymerisation, whereby the filling agent is a particulate cross-linked polymethacrylate produceable through polymerisation of methacrylic acid esters, whereby i) at least 15% by weight of the methacrylic acid esters used for polymerisation are multi-functional methacrylic acid esters, relative to the total weight of the methacrylic acid esters used in the polymerisation, and ii) at least 90% by weight of the particles of the filling agent, relative to the total weight of the filling agent, have a particle size of no more than 74 ?m.

Abstract: A method for producing a spacer for insertion as a placeholder for an articular endoprosthesis, whereby a cement is filled into a compressed hollow space of a flexible compressed hollow mold, whereby the flexible hollow mold is expanded by the cement flowing into it, and the cement is filled into the hollow mold until the hollow space is expanded to a final state, whereby the hollow space in its final state determines the shape of the spacer to be produced, and the cement is then cured in said hollow space, and the spacer produced from the cement is removed from the hollow mold after curing. The invention also relates to the hollow mold, which comprises the compressible hollow space, whereby the hollow mold comprises at least one filling opening through which cement can be filled into the hollow space.

Abstract: A mixing device, for a mixable material, has at least one cartridge and a closure piece. The cartridge contains a first component of the mixable material and has a cartridge head in which at least one air opening is arranged, and the closure piece is arranged on the cartridge head in such a way that the at least one air opening in the cartridge head can be closed and opened by the closure piece. The closure piece is mounted so as to be rotatable or slideable relative to the cartridge head, and a connection extends through the cartridge head or a cartridge wall into the interior of the cartridge and connects the interior of the cartridge to a container for a second component of the mixable material.

Abstract: A compressed-gas motor has a cylindrical inner chamber closed gas-tight at a first base surface, and a piston arranged so as to be movable along the cylinder axis in the cylindrical inner chamber. A first opening feeds a compressed gas into the inner chamber, and a second opening discharges a gas from inside the inner chamber. The openings are arranged in the cylinder casing of the cylindrical inner chamber, wherein the first opening is arranged between the second opening and the closed first base surface. The first opening is closable by a first piston part and the second opening by a second piston part. The compressed-gas motor has a resetting device which exerts a force on the piston in the direction of the first base surface of the cylindrical inner chamber if the second piston part does not completely close the second opening.

Abstract: A cartridge system has two cartridges and a discharge opening, wherein the cartridges are delimited by cartridge walls and by a cartridge head, wherein at least one cartridge opening for expelling the cartridge contents from both cartridges is provided in each case in the cartridge head. A device regulates streams of fluid from the cartridges and is arranged rotatably or slideably on the cartridge head, wherein on at least two openings at least one wing is in each case arranged which at least in some areas protrudes past the opening, such that a flow through the openings applies to the device a force which force leads to a sliding or turning of the device against the cartridge head, such that a housing having a discharge opening is arranged on the cartridge head, in which the housing is arranged so as to rotate or slide.

Abstract: A cartridge system for mixing and applying a mixable material has a discharge opening and at least two cartridges which have interiors delimited in some areas by a cartridge head. A device regulates streams from the cartridges, is arranged on the cartridge head and has an outflow opening and conveying mechanisms for conveying the starting components to the outflow opening. Each conveying mechanism has a connection to an interior of a cartridge, which has a cartridge opening, and is arranged rotatably in the device. Volumetric flows of the components are defined by the angular velocities of the conveying mechanisms, and the conveying mechanisms are coupled to each other in such a way that the ratio of the angular velocities relative to each other is fixed, such that a defined mixing ratio can be generated at the outflow opening.

Abstract: A discharge device discharges the content of a container by applying a compressed gas. The device has a housing, at least one compressed gas container, an operating device for setting a gas flow from the compressed gas container and an opening means for opening the compressed gas container. The opening means is movable in relation to the compressed gas container, and the device has a holder for securing the container on the device. The holder is in operative connection with the opening means in such a way that securing the container on the holder brings about a movement of the opening means in relation to the compressed gas container that opens the compressed gas container.

Abstract: The present invention relates to a kit comprising at least two pastes, A and B. Paste A contains at least one monomer for radical polymerisation; and at least one barbituric acid derivative as polymerisation initiator. Paste B contains at least one monomer for radical polymerisation; and at least one heavy metal compound as polymerisation accelerator that is selected from heavy metal salts and heavy metal complexes. Paste B contains less than 0.01% by weight, relative to the total weight of paste B, of a peroxide; at least one of the pastes A and B contains-at least one filling agent that is poorly soluble or insoluble in the monomer for radical polymerization in either paste A or B respectively; and at least one of the pastes A and B contains at least one inorganic halide salt.

Abstract: A vacuum cementing system has at least one cement powder cartridge and a container-opening system. The container-opening system has at least one container for at least one liquid and/or at least one powder, an opening device, and an outlet opening for applying a negative pressure. When a negative pressure is being applied, the opening device is mobile relative to at least a part of the at least one container. The vacuum cementing system has a means for connecting the cement powder cartridge to the at least one container and utilizes necessary vacuum for automatically opening the at least one container.

Abstract: An applicator and applicator kit for particulate bone replacement materials, autologous or heterologous cancellous bone, demineralised bone matrix. The applicator (1) contains a hollow tube (12) including on one end a bladed shutter. The applicator comprises first fastener (15) for engaging a second component. The second component contains a rod (2) with a handle (21) on one end and a plunger (22) on the opposite end. The rod is arranged in a guide sleeve which is moved along the rod (2) and comprises second fastening means (23) that can be connected to the fastener (15) of the applicator (1) in reversible manner. The applicator kit contains a mixing cup connected to the tube (12) instead of the rod such that the material to be applied is filled into the tube (12) easily prior to application.

Abstract: Adapter for drill driven lavage system with first fastener for connecting the adapter to a drill drive, and second fastener for connecting the lavage system to the adapter. A shaft supported to rotate in axial direction and to connect to the drill drive that the shaft can be rotated by the drill drive. The adapter comprises a disc which is connected to the shaft in such manner that the disc rotates along when the shaft rotates. The disc comprises an attachment in an eccentric arrangement or the disc is inclined towards the rotation axis of the shaft. The adapter is connected to the lavage system by second fastener so that the rotating disc drives the lavage system. The adapter is connected to the lavage system by means of the second fastening facility in such manner that the pestle drives the lavage system and hits periodically onto a membrane of the lavage system.

Abstract: A device stores and mixes a liquid and a solid component, in particular, the device mixes and stores a monomer liquid and a powder for producing bone cement. The device contains two chambers of which the first chamber contains the solid component and is separated from a second chamber that contains the liquid component by means of a separation that can be opened. A mixing facility that can be driven by means of a pressure difference is arranged in the first chamber. In the present storage and mixing system, a vacuum that is available in the operating theatre is used to mix a monomer liquid and a bone cement powder in a vacuum and to operate a mixing facility simultaneously. Moreover, the vacuum can also be used to open a separation between monomer liquid and mixing space and to transfer the monomer liquid into the mixing space.

Abstract: A device automatically mixes bone cement and has two separate plunger space sections with a gas feed and a gas outlet, which are separated from each other through a plunger. A blocking organ is provided in the plunger and can be switched at the turnaround points of the plunger path. Suitable connecting facilities connect the plunger to a mixing facility that is arranged in a mixing vessel. Alternating build-up of a pressure difference and pressure equalisation in both plunger space sections causes the plunger to move up and down. The plunger motion effects a simultaneous up-and-down motion and rotation of the mixing facility.

Abstract: A cartridge system for mixing and applying a mixing ware. The cartridges are arranged parallel and they are connected to a mixing space and an outlet opening. The cartridges each comprise a feed plunger for expelling starting components of the mixing ware from the cartridges through the openings, and each cartridge has at least one closure allocated to it that is shiftable in longitudinal direction of the cartridges, whereby the closures close the openings of the cartridges in a starting position, and the openings are open, at least in part, in an end position of the shiftable closures. In open position, the closure is shifted into a hollow space. The closures are cylindrical in shape and in their end position are capable of being lowered into cylindrical hollow spaces of the cartridges in order to uncover the openings.

Abstract: A method is provided for sterilization of a polymerizable monomer, in which the mixture contains at least the polymerizable monomer, a compound (a), and a compound (b). Compound (a) is selected from the group of compounds (a1), compounds (a2), and compounds (a3), wherein compounds (a1) are represented by general formula (I): wherein R1, R2, R3, and R4, independent of each other, represent a substituted alkyl residue, a non-substituted alkyl residue, a halgoen, a nitro group, or a cyano group; compounds (a2) are selected from the group of dimers of compounds (a1); and compounds (a3) are selected from the group of dialkyldicarbonates. Compound (b) is selected from the group of water and alcohols.

Abstract: Methods and devices coat, at least regions of, a medical implant, preferably of an artificial joint or a fixation for a joint. The method provides a medical implant, fills a device with a liquid having at least one pharmaceutically active substance, wherein the device has a compressed, at least over regions thereof, elastic, porous transfer means increases a volume of the transfer means, whereby the liquid is taken up at least partly into the pores of the transfer means, and transfers the liquid from the transfer means to a medical implant surface to be coated. The device coats, at least regions of, a medical implant, by means of the method, whereby the device has a compressed, at least over regions thereof, elastic, porous transfer means.

Abstract: A device is provided for generating a vacuum for a vacuum cementing device, the device including a channel and a connector for a gas cartridge. The connector has an opener for opening the gas cartridge, and connects the gas cartridge to the channel in a pressure-tight manner, such that gas from the opened gas cartridge flows along the channel to the surroundings of the device. The channel includes at least one T-piece, provided as Venturi nozzle, having a vacuum connector for the vacuum cementing device, such that gas from the opened gas cartridge flowing through the channel generates a negative pressure at the vacuum connector. A method is also provided including steps of opening a gas cartridge, flowing gas from the gas cartridge through a Venturi nozzle, whereby by a negative pressure is generated, and applying the negative pressure to a vacuum cementing system.

Abstract: A kit for producing bone cement includes at least one paste A and one paste B. Paste A contains at least one monomer (a1) for radical polymerization; at least one polymer (a2) insoluble in monomer (a1); at least one polymer (a3) soluble in monomer (a1); and at least one radical polymerization initiator (a4). The weight ratio of the at least one polymer (a2) to the at least one polymer (a3) is at least 2 to 1. Paste B contains at least one monomer (b1) for radical polymerization; at least one polymer (b2) and at least one accelerator (b3) soluble in monomer (b1); and optionally a polymer (b4) insoluble in monomer (b1). The maximum quantity of polymer (b4) is 5% by weight, relative to the total weight of paste B. The weight ratio of polymer (b4) to the at least one polymer (b2) is no more than 0.2.