Abstract: A medical placeholder. The medical placeholder has at least one hollow body which is expandable and which defines an interior space, a gas infeed hose which is connected or connectable in a gas-permeable manner with the interior space of the hollow body, and a gas discharge hose which is connected or connectable in a gas-permeable manner with the interior space of the hollow body. The hollow body consists partly or completely of at least one plastic material which is permeable to oxygen and carbon dioxide. A one-way valve is arranged in the gas infeed hose and a pressure relief valve is arranged in the gas discharge hose. Also disclosed is a method for gas-flushing a surface of a medical placeholder.

Abstract: A medical placeholder. The medical placeholder has at least one hollow body which is expandable and which defines an interior space, a gas infeed hose which is connected or connectable in a gas-permeable manner with the interior space of the hollow body, and a gas discharge hose which is connected or connectable in a gas-permeable manner with the interior space of the hollow body. The hollow body consists partly or completely of at least one plastic material which is permeable to oxygen and carbon dioxide. A one-way valve is arranged in the gas infeed hose and a pressure relief valve is arranged in the gas discharge hose. Also disclosed is a method for gas-flushing a surface of a medical placeholder.

Abstract: An implant is provided having an antibiotic coating that is inexpensive and easy to manufacture. The antibiotic coating adheres well and in stable manner to the surface of the implant, can be degraded by the body without forming toxic products, prevents the crystallization of the antibiotics in the coating, and ensures a high immediate locally-effective antibiotic concentration at the implant site. A coating solution useful for making the implant and a method for the manufacture of the implant are also described.

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: Subsequently, the medical implant coated with the liquid punctures the membrane 14 which, until then, protected the powder 18 situated below it from external influences. The medical implant is then immersed in the powder 18. The liquid film on the surface of the medical implant causes the powder 18 to adhere well to the surface thereof.

Abstract: Cartridge system for mixing and applying a mix of a medical cement. Cartridges are arranged parallel to each other 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 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: 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 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 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: The invention relates to a device for vial opening comprising an external container, in which a closed vial having a vial body and a vial head is arranged, and comprising a hollow space in the region of the vial head, whereby the hollow space comprises at least one opening and a connection to the vial, whereby the vial head, at least regions thereof, is arranged in the connection of the hollow space to the vial, and the walls of the external container comprise at least one deformable region or are altogether made of a deformable material, whereby tilting of the vial with respect to the connection is made feasible, and the diameter of the connection is adapted to the dimensions of the vial head in such a manner that the vial head can be fractured or broken off the vial body when the vial is being tilted with respect to the connection.

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: 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: 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: A paste is provided from which bone cement can be formed, which is to the largest extent possible bubble-free and has a high impact strength. The paste includes (i) 15-50 weight percent of at least one mono-functional, hydrophobic methacrylic acid ester, (ii) 40-85 weight percent of at least one filler, (iii) 0.01-4 weight percent of at least one radical initiator soluble in the methacrylic acid ester (i) and having at least one peroxide group, (iv) 0.01-4 weight percent of at least one radical initiator soluble in the methacrylic acid ester (i) and having no peroxide groups, (v) 0.000001-3 weight percent of at least one accelerator soluble in the methacrylic acid ester (i) and capable of forming radicals from the radical initiators according to (iii) and (iv), (vi) 0.001-5 weight percent of at least one halide salt, and (vii) 0.2-3 weight percent of at least one cross-linking agent.

Abstract: A cartridge system mixes and applies a mixing ware, such as, for example, a medical cement. The cartridge system has two cartridges that are arranged parallel to each other, and a mixing space having an outlet opening, wherein the cartridges each comprise at least one opening in the cartridge walls that connects the cartridges to the mixing space. The cartridges each comprise a feed plunger for expelling starting components of the mixing ware out of the cartridges through the openings, wherein a closure that can be shifted in the mixing space is arranged in the mixing space in a manner such that it closes the openings of the cartridges in a starting position and in that the openings to the mixing space are opened, at least in part, in a final position of the shiftable closure, wherein the shiftable closure can be shifted from a starting position to a final position.

Abstract: A dispensing device for cartridges having a connection for supplying a pressurized gas, a base body, in which at least one passage and/or channel extends through which the pressurized gas can be guided to a first cartridge connector for connecting a cartridge. The first cartridge connector has a first opening towards the passage and/or the front channel such that a cartridge content can be expelled from the cartridge through application of the pressurized gas to a cartridge when the cartridge is arranged in the cartridge connector, wherein a second cartridge connector having a larger cross-section and a second opening is arranged at a front edge of the first cartridge connector The second cartridge connector is suitable for connecting a larger cartridge, and wherein the second opening of the second cartridge connector is sufficiently large to allow a cartridge to be connected to the first cartridge connector proceeding through the second opening.

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: The invention relates to a method for coating of a medical implant that can be used to apply a calcium salt to the surface of a medical implant easily and without expensive coating equipment and little expenditure of time. Accordingly, a method is provided that includes (i) providing a medical implant that includes at least one surface to be coated; (ii) providing a body that includes at least one calcium salt with a Mohs hardness of no more than 5.5 on at least one of its surfaces; and (iii) rubbing said body having the calcium salt-containing surface onto the at least one medical implant surface to be coated in order to coat said surface of the medical implant with the at least one calcium salt.

Abstract: A device for coating a medical implant includes a container that contains a liquid having at least one pharmaceutically active substance. An elastic head for application of the liquid onto a surface to be coated is connected to an inside of the container through at least one channel.

Abstract: A device is provided with which it is possible to produce poly(methyl methacrylate) bone-cement paste, which is degassed to the greatest extent possible, while avoiding large-volume mixing containers and large cement volumes contained therein. The device includes a tubular hollow body (10) having a first opening (30) on the input side and a second opening (20) on the output side, at least one rotatably-mounted shaft (40) arranged in the axial direction in the tubular hollow body (10), thread turns (50) arranged axially along the outer side of the shaft (40), wherein the shaft (40) has at least one section with thread turns (50) whose pitch decreases in the direction of the second opening (20), at least one stirring blade (60) arranged on the shaft (40), and rigid mixing elements (70) arranged on the inner side of the tubular hollow body (10).