Abstract: A femoral hip joint spacer including a prosthesis body having a ball head with a sliding surface, a neck, a collar and a stem. A fastening area is arranged on the stem. The femoral hip joint spacer further has a first connector for feeding a medical irrigation liquid into the body, a second connector for draining the irrigation liquid from the body, and an irrigation liquid inlet opening. The first connector is connected in a liquid-conveying manner to the irrigation liquid inlet opening and an irrigation liquid outlet opening. The second connector is connected in a liquid-conveying manner to the irrigation liquid outlet opening, an irrigation liquid discharge opening and an irrigation liquid intake opening. The irrigation liquid discharge opening is connected inside the body to the irrigation liquid inlet opening and the irrigation liquid intake opening is connected inside the body to the irrigation liquid outlet opening.

Abstract: A storage and mixing device for two-component polymethyl methacrylate bone cements having a cylindrical interior of a cartridge that is delimited on a front side by a cartridge head, a plunger arranged to be axially movable in the cylindrical interior of the cartridge and spaced from the cartridge head, a powdery first parent component of the bone cement, that is contained in the interior between the plunger and the cartridge head, a feed-through arranged in the cartridge head or in the cylinder barrel of the cartridge between the plunger and the cartridge head. The feed-through is connectable to a fluid line, a receptacle for a monomer liquid, wherein the fluid line connects the feed-through to the receptacle in a liquid-permeable manner, and a press-out device pushable into the receptacle, so that monomer liquid is pressable out of the receptacle into the fluid line.

Abstract: One embodiment relates to a device for the production of a bone cement dough from a monomer liquid and a cement powder comprising a cartridge with an internal space; a cartridge head with a dispensing opening; a conveying plunger that is arranged in the internal space of the cartridge and is supported in the internal space of the cartridge such that it is pushable in the direction of the dispensing opening; a dispensing plunger between the dispensing opening and the conveying plunger that is supported in the internal space of the cartridge such that it is pushable in the direction of the dispensing opening; a first hollow space, in which the cement powder is arranged; a second hollow space that is bordered by the dispensing plunger and the conveying plunger; a fluid opening that is arranged in the conveying plunger; a feedthrough that connects the first hollow space and the second hollow space to each other, and a closure means that is arranged on a rear side of the dispensing plunger.

Abstract: One aspect relates to a device for the production of a bone cement dough from a monomer liquid and a cement powder comprising a cartridge with an internal space; a cartridge head with a dispensing opening; a conveying plunger that is supported in the internal space of the cartridge such that it is pushable in the direction of the dispensing opening; a dispensing plunger between the dispensing opening and the conveying plunger that is supported in the internal space of the cartridge such that it is pushable in the direction of the dispensing opening; a first hollow space, in which the cement powder is arranged; a second hollow space that is bordered by the dispensing plunger and the conveying plunger; a rear-side part of the internal space of the cartridge; and a conducting means that connects the second hollow space to the rear-side part of the internal space of the cartridge such as to bypass the conveying plunger and be permeable to the monomer liquid.

Abstract: A polymethylmethacrylate bone cement is produced by a method. The method comprises the steps of a) providing a cement powder comprising: at least one particulate polymethylmethacrylate or polymethylmethacrylate-copolymer wherein the at least one particulate polymethylmethacrylate or polymethylmethacrylate-copolymer have a particle size of less than 100 ?m; an initiator; and at least one particulate or fibrous additive that is insoluble in methylmethacrylate, wherein the additive has an absorption capacity at room temperature of more than or equal to 0.6 g methylmethacrylate per gram of additive; b) providing a monomer solution comprising: at least one methylmethacrylate; and at least one activator; and c) mixing the cement powder and the monomer solution, characterised in that the mixing takes place without the application of shearing forces.

Abstract: One aspect relates to a bone cement applicator for mixing and applying a bone cement, with which the starting components of the bone cement is mixable in a closed cartridge to form a bone cement dough. The cartridge has a multi-part closure system including a discharge opening. At least two parts of the closure system are movable relative to one another, driven by a movement of the mixed bone cement dough, and the discharge opening is opened the movement of the at least two parts of the closure system relative to one another. The movement of the mixed bone cement dough is drivable by a pressure on the bone cement dough.

Abstract: One aspect relates to a device for providing a bone cement from two starting components, having a hollow cylinder-shaped first container, in which a monomer liquid as first starting component can be stored, a hollow cylinder-shaped second container comprising a container wall, a first internal space, and a second internal space, whereby a bone cement powder as second starting component can be stored in the first internal space, and whereby the monomer liquid can be conveyed into the second internal space, a fluid-conducting conveying means arranged between the first internal space and the second internal space, whereby the first container and the second container are axially connected to each other.

Abstract: One aspect relates to a method of producing a bone cement from at least two starting components in a device comprising a first hollow cylinder-shaped container and a second hollow cylinder-shaped container, a vessel arranged in the first container, whereby a monomer liquid is stored in the vessel. The aspect also relates to a device for providing a bone cement from two starting components, comprising a hollow cylinder-shaped first container, in which a vessel for a monomer liquid as first starting component can be stored, a hollow cylinder-shaped second container comprising a first internal space, in which a bone cement powder as second starting component can be stored, and a second internal space into which the monomer liquid can be conveyed, a fluid-conducting conveying means arranged between the first internal space and the second internal space, whereby the first container and the second container are axially connected to each other.

Abstract: One embodiment is a medical device for local application of a fluid, including a flexibly deformable external hose. The external hose includes multiple through-going openings, at least one of them is arranged in the area of a first end of the external hose. It includes a flexible internal hose, at least sections of which are arranged on the inside of the external hose. The internal hose, in an expanded state, has an external diameter that is at least equal to the internal diameter of the external hose, such that it closes the openings of the external hose. The external diameter of the internal hose can be transitioned from the expanded state into a radially contracted state, such that the openings are being exposed. A connection firmly connects the external hose and the internal hose to each other on the first end of the external hose, and closes them in fluid-tight manner. A connector supplies the fluid into the intervening space between the external and the internal hose.

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: Bone cement applicators and methods apply a bone cement dough in the region of the spine. The applicators and method have at least one tubular cartridge with an internal space, containing starting components of the bone cement, at least one dispensing plunger that is mobile in longitudinal direction on the inside of the at least one cartridge, a hose, an application opening through which the bone cement dough is applicable, a three-way valve being arranged in the hose or on a side of the hose facing the at least one cartridge and in fluid connection with the opening of the at least one cartridge and/or a collecting container arranged on the three-way valve for accommodation of bone cement dough.

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: Bone cement applicators and methods for application of a bone cement dough, the applicators and methods comprise a tubular cartridge with an internal space, a dispensing plunger for expelling the starting components through an opening of the cartridge opposite from the dispensing plunger, wherein the dispensing plunger is mobile in longitudinal direction in the internal space of the cartridge. The applicators and methods further comprise a hose, an application opening, a three-way valve operable from outside and arranged or arrangeable in the hose or on a side of the hose facing the cartridge, and a collecting container arranged on the three-way valve.

Abstract: Devices and methods manually open glass ampules within the devices. One device may include a holder having at least one deformable side wall, a supporting element, and at least one strainer/filter arranged below the holder so that the content of the opened glass ampule may flows therethrough. A first lever of the device may pivot around a first axis and a free end of the first lever may be pressed against the deformable side wall of the holder. A second lever of the device may pivot around a second axis that may divide the second lever into a short lever arm and a long lever arm. The short lever arm may be pressed against the first lever and a glass ampule may be broken open by pressure of the free end of the first lever.

Abstract: A pasty two-component polymethacrylate bone cement comprising a pasty component A, containing AI at least one distillable methacrylate monomer for radical polymerisation; AII at least one polymer soluble in AI; AIII at least one particulate polymer with a particle size of no more than 500 ?m that is not soluble in AI; AIV at least one radical stabiliser; and AV at least one aromatic amine accelerator; and a pasty component B, containing BI dibenzoyl peroxide; BII at least one substance that is not subject to radical polymerisation and is liquid at room temperature, whereby the solubility of dibenzoyl peroxide in this substance at room temperature is less than 5.0% by weight and, whereby the weight fraction of liquid substance BII in the self-curing cement dough is less than 2.0% by weight. Also disclosed is a method for producing a self-curing bone cement dough using the pasty two-component polymethacrylate bone cement.

Abstract: Opening device for the opening of a monomer liquid container (1) comprising a positioning aid (6) for positioning of the monomer liquid container (1), an opening facility (8) for the opening of the monomer liquid container (1), the opening facility (8) being mobile with respect to the positioning aid (6) and/or the positioning aid (6) being mobile with respect to the opening facility (8), at least one elastically deformable energy-storing element (9) for storage of elastic energy, whereby a motion of the opening facility (8) and/or a motion of the positioning aid (6) can be driven by the elastic energy of the at least one elastically deformable energy-storing element (9).

Abstract: The invention proposes a polymer solution for visco-supplementation. The polymer solution contains at least one at least partially water-soluble polysaccharide or polysaccharide derivative, one water-soluble alkali salt or alkaline earth salt of polystyrene sulfonic acid, and water, whereby the polymer solution is clear to the eye. Moreover, the invention describes a method for sterilization of the polymer solution. This method is characterized in that a mixture of at least one at least partially water-soluble polysaccharide or polysaccharide derivative, one water-soluble alkali salt or alkaline earth salt of polystyrene sulfonic acid, and water is mixed with at least 0.5 wt. % ß-propiolactone, and in that the polymer solution is stored at room temperature for at least 24 hours.

Abstract: Storage and mixing systems for pasty two-component polymethyl methacrylate bone cements comprise a tubular cartridge having a cylindrical inner chamber, a cartridge head, which closes one end of the tubular cartridge at the front side, a partition that is disposed axially in the cylindrical inner chamber of the cartridge. The partition divides the cylindrical inner chamber of the cartridge bounded by the cartridge head into two cavities that are spatially separated from one another, wherein a first pasty cement component is present in the first cavity and a second pasty cement component is present in the separate second cavity.

Abstract: An antibiotic polymethylmethacrylate bone cement that is composed of methylmethacrylate, at least one polymethylmethacrylate or a polymethylmethacrylate-copolymer, at least one polymerisation initiator, such as in radical initiator, at least one polymerisation accelerator, and at least one radiopaquer, whereby the components are present in a powdered component and a liquid monomer component or in two components that are pasty at room temperature. The polymethylmethacrylate bone cement comprises the cyclical lipopeptide, daptomycin, a pharmacologically tolerable salt of daptomycin, a solvate and/or a hydrate containing daptomycin and at least one calcium salt, which preferably comprises at least two different release profiles. The bone cement is useful in one-stage or two-stage septic revision surgery.

Abstract: A spacer mold and method for producing a hip spacer, the spacer mold comprises a base element (1), in which a hollow mold 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 mold is arranged on the proximal end of the hollow mold in the base element. The spacer mold further comprises a semi-spherical insert (2) comprising a femoral head mold 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 mold 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 mold such that the recess exerts a pressure onto the adapter insert (3) and the semi-spherical insert (2).