Abstract: Vacuum mixing systems and methods mix of polymethylmethacrylate bone cement, the systems and methods comprise at least one cartridge having an evacuable internal space, a pump with a plunger that can be moved by hand to generate a low pressure, and a connecting conduit connecting the internal space of the at least one cartridge to the pump. The pump comprises an operating element that can be operated from outside and is connected appropriately to the plunger such that it is suitable for moving the plunger in the pump by hand such that a low pressure can be generated such that the low pressure of the pump can be used to evacuate gas from the internal space of the at least one cartridge through the connecting conduit.

Abstract: A modular kit and/or method buildings a cage for spondylodesis, wherein the kit and/or method comprises at least two plates, wherein the plates comprise a biocompatible material and each comprise a planar structure and a plurality of pins projecting from the planar structure of the plates, wherein the pins each comprise at least one latching element, wherein the pins are elastically deformable and are arranged sufficiently close to each other on the planar structure such that pressing planar structures studded with pins of several plates onto each other causes the latching elements of different plates to snap into each other, wherein at least two of the at least two plates comprise a recess with a diameter of at least 5 mm.

Abstract: A kit for preparing a paste-like bone cement, comprising a paste A and a paste B, wherein paste A contains (a1) at least one monomer for radical polymerization, (a2) at least one polymer that is soluble in (a1); and (a3)at least one polymerization initiator; and paste B contains (b1) at least one monomer for radical polymerization; (b2) at least one polymer that is soluble in (b1); and (b3) at least one polymerization accelerator; wherein at least one of the pastes A and B contains as component (a4) and/or (b4) at least one filling agent that is poorly soluble or insoluble in (a1) and/or (b1), respectively, and wherein the filling agent is a particulate inorganic filling agent possessing a BET surface of at least 40 m2/g.

Abstract: A device and methods mix polymethylmethacrylate bone cement and/or store the starting components of the bone cement. The device comprising: a cartridge with an internal space for mixing the bone cement that is closed on one side by means of a mobile dispensing plunger; a monomer container for a monomer liquid and/or a connector for attachment of a monomer container for a monomer liquid such that the monomer container can be opened appropriately in the device such that the monomer liquid flows from the monomer container into the device; a connecting conduit through which the monomer liquid can be guided into the internal space of the cartridge.

Abstract: Planar alloplastic bone replacement material and methods comprise at least one plate for augmentation of bone defects, whereby the bone replacement material consists of a biocompatible plastic material, a biocompatible metal and/or a biocompatible metal alloy, whereby the at least one plate comprises a planar structure and comprises a plurality of pins extending outwards from the planar structure of the at least one plate, whereby the pins each comprise at least one connecting element, whereby the pins are deformable elastically and are arranged sufficiently close to each other such that pressing the surfaces of multiple plates onto each other causes the connecting elements of different plates to interlock with and/or snap into each other and the mutually interlocked and/or snapped-in plates form an open-pored body of mutually interlocked and/or snapped-in plates.

Abstract: Particulate alloplastic bone replacement material and methods comprise a multitude of particles, whereby the particles comprise a core and at least six pins extending from the core, whereby the pins each comprise at least one connecting element, and whereby the pins are deformable elastically such that, upon multiple particles being pressed together, the connecting elements of different particles interlock with and/or snap into each other and the particles that are interlocked with and/or snapped into each other form an open-pored body of particles that are interlocked with and/or snapped into each other.

Abstract: A spacer mould and method for producing a hip spacer, the spacer mould comprises a base element (1), in which a hollow mould is provided as negative image of one side of a femoral stem of the spacer to be generated, whereby a recess connected to the hollow mould is arranged on the proximal end of the hollow mould in the base element. The spacer mould further comprises a semi-spherical insert (2) comprising a femoral head mould as negative image of one side of a femoral head of the spacer to be generated, whereby the semi-spherical insert (2) is to be arranged in the recess in the base element (1). Further, the spacer mould comprises an adapter insert (3) that is designed as a hollow body that is open on two sides and that is or can be arranged in the recess of the base element (1) between the semi-spherical insert (2) and the hollow mould such that the recess exerts a pressure onto the adapter insert (3) and the semi-spherical insert (2).

Abstract: Device for the mixing of polymethylmethacrylate bone cement and for storing a monomer liquid and a cement powder as starting components of the bone cement, comprising a cartridge having an internal space closed on one side by a mobile dispensing plunger; a monomer container for a monomer liquid and/or a connector for attachment of a monomer container which can be opened in the device so that the monomer liquid flows from the monomer container into the device; and a connecting conduit through which the monomer liquid can be guided into the internal space of the cartridge; having a pumping plunger that can be shifted axially in the hollow cylinder arranged in the hollow cylinder, which can be used to push monomer liquid from the hollow cylinder through the connecting conduit into the internal space of the cartridge by actuating the pumping plunger.

Abstract: A rotary valve body for a dispensing device is arrangable in a matching valve seat in the dispensing device, whereby the rotary valve body is rotationally symmetrical about the rotation axis of the rotary valve body at least within a region intended for the valve seat. At least one sealing cam is arranged on the rotationally symmetrical jacket surface of said region and is raised above the radius of the rotationally symmetrical jacket surface such that the sealing cam renders the circumference of the rotary valve body larger than the internal diameter of the valve seat. At least one feed-through is arranged in the rotary valve body and extends from a first opening in the rotationally symmetrical jacket surface into a second opening in the rotationally symmetrical jacket surface.

Abstract: A method for coating at least regions of a medical implant includes providing a medical implant having a surface to be coated, and immersing the surface of the medical implant into a liquid including at least one pharmaceutically active substance, whereby the liquid is transferred to the surface of the medical implant due to the immersing. The method also includes pulling the surface of the medical implant out of the liquid, whereby part of the liquid remains adhering to the surface of the medical implant.

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 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 halogen, 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: Paste containing at least one monomer for radical polymerization, at least one polymer that is soluble in said at least one monomer for radical polymerization, and at least one filling agent that is poorly soluble or insoluble in said at least one monomer for radical polymerization, wherein the filling agent is a particulate inorganic filling agent possessing a BET surface of at least 40 m2/g; kit comprising pastes A and B which, when mixed, form paste C, which pastes are useful for mechanical fixation of articular endoprostheses, for covering skull defects, for filling bone cavities, for femuroplasty, for vertebroplasty, for kyphoplasty, for the manufacture of spacers or for the production of carrier materials for local antibiotics therapy, as well as a form body produced from the pastes.

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: A dispensing device comprises at least one manually actuatable operating element, an adapter for a cement cartridge, and a clamping rod that can be propelled in the direction of the adapter, whereby at least one propulsion body is arranged to be touching against the clamping rod, whereby the at least one propulsion body comprises multiple elastic spring tongues. The spring tongues each comprise a cutting edge, whereby the spring tongues touch against the clamping rod by means of the cutting edge, and whereby the spring tongues of the propulsion body are inclined appropriately with respect to the clamping rod such that, upon a motion of the propulsion body in the propulsion direction of the clamping rod, the cutting edges of the propulsion body engage the clamping rod.

Abstract: The invention relates to a fosfomycin preparation that comprises a) a calcium salt of fosfomycin and b) at least one sugar alcohol having a melting point above 70° C., whereby the weight ratio of sugar alcohol to calcium salt of fosfomycin is at least 0.8. Moreover, the invention proposes a method for producing the fosfomycin preparation and a polymethylmethacrylate bone cement powder that contains the fosfomycin preparation.

Abstract: A paste contains at least one monomer for radical polymerization, at least one polymer that is soluble in said at least one monomer for radical polymerization, and at least one filling agent that is poorly soluble or insoluble in said at least one monomer for radical polymerization. The filling agent is a particulate inorganic calcium salt comprising the following properties: at least 90% by weight of the particulate inorganic calcium salt have a particle size of less than 63 ?m, as determined by means of sieve analysis; and the solubility in water of the particulate inorganic calcium salt at 20° C. is less than 8.5 g per liter. A kit and the paste is usable for mechanical fixation of articular endoprostheses, for covering skull defects, for filling bone cavities, for femuroplasty, for vertebroplasty, for kyphoplasty, for the manufacture of spacers or for the production of carrier materials for local antibiotics therapy, as well as a form body.

Abstract: A paste application device stores two starting components, for mixing the starting components to form a paste and for the application of the paste.

Abstract: One-component bone cement pastes, containing: AI at least one methacrylate monomer suitable for radical polymerization; AII at least one polymer that is soluble in AI; AIII at least one particulate polymer that is insoluble in AI and has a particle size of less than 500 ?m; optionally AIV at least one radical-forming initiator or at least one radical initiator that is soluble in AI and subject to thermal decomposition; optionally AV at least one electrically conductive radio-opaquer, in the form of ferromagnetic particles.

Abstract: Dispensing device for cement cartridges for polymethylmethacrylate bone cements comprising at least one manually actuatable rocker lever, an adapter for a cement cartridge, a clamping rod that can be propelled in the direction of the adapter, at least one propulsion body shiftable in axial direction with respect to the axis of the clamping rod, at least one sphere-shaped or roller-shaped clamping body arranged in a cavity of the at least one propulsion body, an elastic element which pushes the at least one clamping body of the at least one propulsion body from the direction of the adapter onto an inclined surface or edge of the cavity of the at least one propulsion body, a spring element which pushes onto the at least one propulsion body opposite to the propulsion direction of the clamping rod, and at least one securing element which touches against the clamping rod.