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Heraeus Medical Gmbh patents


Recent patent applications related to Heraeus Medical Gmbh. Heraeus Medical Gmbh is listed as an Agent/Assignee. Note: Heraeus Medical Gmbh may have other listings under different names/spellings. We're not affiliated with Heraeus Medical Gmbh, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Heraeus Medical Gmbh-related inventors


Method for the production of a polymethylmethacrylate bone cement, bone cement kit for use in said method, and bone cement produced by said method

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 μm; 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.. ... Heraeus Medical Gmbh

Device and method for storing and mixing bone cement

One aspect relates to a device for mixing a polymethyl methacrylate bone cement formed of two starting components and for storing the starting components of the bone cement. The device has a tubular cartridge with a cylindrical interior. ... Heraeus Medical Gmbh

Bone cement applicator with closure system driven by bone cement dough

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. ... Heraeus Medical Gmbh

Segmented electrode and method

A medical lead for implantation includes an electrode assembly having a plurality of electrodes. Each of the plurality of electrodes include a plurality of electrode segments. ... Heraeus Medical Gmbh

Bone cement applicator with three-way valve for pressure relief

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. ... Heraeus Medical Gmbh

Bone cement applicator with three-way valve for pressure relief

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. ... Heraeus Medical Gmbh

Antiseptic polymethylmethacrylate bone cement

An antiseptic composition for use as bone cement, in particular an antiseptic polymethylmethacrylate bone cement. The composition can be cured and comprises a pharmacologically tolerable salt of a monoperoxy dicarboxylic acid, whereby the salt of the monoperoxy dicarboxylic acid can be dissolved from the composition in the presence of water. ... Heraeus Medical Gmbh

Storage and mixing device for producing a bone cement

A storage and mixing device for pmma bone cements having a cylindrical interior of the cartridge that is delimited on a front side by a cartridge head with a closed delivery opening, a plunger which is arranged to be axially movable in the cylindrical interior of the cartridge and which is spaced from the cartridge head. The plunger circumferentially rests against the inner wall of the interior, so that the plunger divides the interior of the cartridge into two sections in a gas-tight manner, a powdery first parent component of the bone cement, which is contained in the interior between the plunger and the cartridge head, a feed-through which is arranged in the cartridge head or in the cylinder barrel of the cartridge between the plunger and the cartridge head, wherein the feed-through is connected to a fluid line in which a monomer liquid as a second parent component of the bone cement is contained or into which a monomer liquid is fillable or introducible. ... Heraeus Medical Gmbh

Storage and mixing device for bone cement with a pressure pump

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. ... Heraeus Medical Gmbh

Polymer solution for visco-supplementation

. . 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. ... Heraeus Medical Gmbh

Device for mixing and storing polymethyl methacrylate bone cement with pressure pump and ampoule breaker

A device mixes bone cement and stores parent components of the bone cement. The device has a cartridge comprising an interior, that is closed on one side by a movable delivery plunger, a receptacle comprising side walls for receiving a monomer liquid container that are closed at least in some regions. ... Heraeus Medical Gmbh

Storage and mixing system for pasty cement components and method therefor

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. ... Heraeus Medical Gmbh

Storage and mixing system for pasty cement components and method therefor

A storage and mixing system, for pasty two-component polymethyl methacrylate bone cements, comprises a cartridge with a cylindrical interior, a cartridge head that closes an end of said cartridge, a partition wall axially disposed in the cylindrical interior of the cartridge, wherein said partition wall is connected to the circumferential surface of the cylindrical interior of the cartridge and divides the cylindrical interior of the cartridge delimited by the cartridge head into two spatially separate cavities. The first cavity includes a first pasty cement component and the separate second cavity includes a second pasty cement component, two delivery plungers close the two cavities on the side of the cavities opposite the cartridge head. ... Heraeus Medical Gmbh

Storage and mixing system for pasty cement components and method therefor

A storage and mixing system for pasty two-component polymethyl methacrylate bone cements comprises a tubular cartridge with a cylindrical interior, a cartridge head that closes one end of the tubular cartridge, a partition wall axially disposed in the cylindrical interior and dividing the cylindrical interior into two spatially separate cavities, the first cavity including a first pasty cement component and the second cavity including a second pasty cement component, two delivery plungers disposed movably in the two cavities and connected via a connecting means, wherein a wedge or cone having a cutting edge on the front side thereof facing the cartridge head is disposed on the connecting means, such that said cutting edge cuts open the partition wall when the delivery pistons are advanced towards the cartridge head and the wedge or cone presses the cut open parts of the partition wall towards the inner wall of the cartridge.. . ... Heraeus Medical Gmbh

09/07/17 / #20170252715

Storage and mixing system for pasty cement components and method therefor

A storage and mixing system for pasty two-component polymethyl methacrylate bone cements comprises a tubular cartridge having a cylindrical inner chamber, a dispensing plunger that is axially displaceable in the inner chamber of the cartridge, a partition disposed axially in the tubular cartridge, and a cartridge head which closes one end of the tubular cartridge. The cartridge head has a slot-shaped opening, wherein the partition protrudes from the inner chamber of the cartridge through the slot-shaped opening of the cartridge head, wherein the partition divides the cylindrical inner chamber of the cartridge bounded by the dispensing plunger and the cartridge head into two cavities that are spatially separated from one another. ... Heraeus Medical Gmbh

06/22/17 / #20170173210

Antibiotic polymethylmethacrylate bone cement

The invention proposes 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 according to the invention 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.. ... Heraeus Medical Gmbh

06/22/17 / #20170173192

Method for sterilization of aqueous polysaccharide solutions and sterile aqueous polysaccharide solutions

Sterilization method according to which an aqueous polysaccharide solution is stored in the presence of a lactone and a buffer system for a period of at least 24 hours, and a sterile polysaccharide solution produced in this way.. . ... Heraeus Medical Gmbh

06/08/17 / #20170157579

Vacuum mixing device with operating element, pressure pump, and vacuum pump for mixing polymethylmethacrylate bone cement

A vacuum mixing device or system mixes polymethylmethacrylate bone cement from a monomer liquid and a cement powder. The device or system comprising at least one cartridge comprising an evacuable interior for mixing of the bone cement, a mixing device for mixing the content in the interior of the at least one cartridge, a receptacle for receiving a separate container containing the monomer liquid or comprising an integrated container containing the monomer liquid, an opening device, which is arranged in the region of the receptacle in a manner movable relative to the receptacle so that, by moving the opening device, a separate container arranged in the receptacle is openable by means of the opening device, or the opening device is arranged in the region of the integrated container in a manner movable relative to the integrated container so that, by moving the opening device, the integrated container is openable by means of the opening device, a vacuum pump, in which a movable vacuum plunger for generating a negative pressure is arranged and delimits a vacuum pump chamber of the vacuum pump, a pressure pump, in which a movable pump plunger for conveying a liquid is arranged and delimits a pressure pump chamber of the pressure pump, a connection line, and a fluid connection. ... Heraeus Medical Gmbh

06/08/17 / #20170157578

Vacuum mixing device with operating element and pump for mixing polymethylmethacrylate bone cement

A vacuum mixing device for mixing pmma bone cement from a monomer liquid and a cement powder, the vacuum mixing device comprising at least one cartridge comprising an evacuable interior for mixing of the bone cement, a mixing device for mixing the content in the interior of the at least one cartridge, which is arranged movably in the interior, a receptacle for receiving a separate container containing the monomer liquid or comprising an integrated container containing the monomer liquid, an opening device, which is arranged in the region of the receptacle in a manner movable relative to the receptacle so that, by moving the opening device, a separate container arranged in the receptacle is openable by means of the opening device, or the opening device is arranged in the region of the integrated container in a manner movable relative to the integrated container so that, by moving the opening device, the integrated container is openable by means of the opening device, a pump, in which a movable plunger for generating a negative pressure is arranged and delimits a pump chamber of the pump, and a connection line, which connects the interior of the at least one cartridge to the pump chamber of the pump, wherein the vacuum mixing system comprises an operating element that is operatable from outside, wherein the plunger in the pump is movable manually by means of the operating element, and wherein the opening device is movable relative to the receptacle or relative to the integrated container by means of the same operating element, and the mixing device in the interior of the cartridge is movable by means of the same operating element in order to mix the content in the interior of the cartridge.. . ... Heraeus Medical Gmbh

06/08/17 / #20170156778

Mixing device with operating element and pressure pump for mixing polymethylmethacrylate bone cement

The invention relates to a mixing device for mixing pmma bone cement from a monomer liquid and a cement powder, the mixing device comprising at least one cartridge having an evacuable interior for mixing of the bone cement, a mixing device for mixing the content in the interior of the at least one cartridge, which is arranged movably in the interior, a receptacle for receiving a separate container containing the monomer liquid or comprising an integrated container containing the monomer liquid, an opening device, which is arranged in the region of the receptacle in a manner movable relative to the receptacle so that, by moving the opening device, a separate container arranged in the receptacle is openable by means of the opening device, or the opening device is arranged in the region of the integrated container in a manner movable relative to the integrated container so that, by moving the opening device, the integrated container is openable by means of the opening device, a pressure pump, in which a movable plunger for conveying a liquid is arranged and delimits a pump chamber of the pressure pump and a connection line, which connects the interior of the at least one cartridge to the pump chamber of the pressure pump, wherein the mixing device comprises an operating element that is operatable from outside, wherein the plunger in the pressure pump is movable manually by means of the operating element, and wherein the opening device is to be moved relative to the receptacle or relative to the integrated container by means of the same operating element, and the mixing device in the interior of the cartridge is movable by means of the same operating element in order to mix the content in the interior of the cartridge.. . ... Heraeus Medical Gmbh

05/11/17 / #20170128113

Paste application device for mixing a paste

A paste application device stores two starting components for mixing the starting components to form a paste and for application of the formed paste. The device comprises a two-component cartridge comprising two internal spaces, two feed plungers shiftable in the internal spaces and bordering the internal spaces on a first side of the two-component cartridge, and at least two dispensing openings by means of which the internal spaces are open on a second side of the two-component cartridge that is opposite from the first side. ... Heraeus Medical Gmbh

04/06/17 / #20170095283

Device and method for storing and mixing a bone cement

Devices and methods mix a bone cement and comprise at least one cartridge, wherein the cartridge comprises in its interior a cylindrical mixing chamber, a discharge piston movable in the cylindrical mixing chamber in the longitudinal direction and sealable against the walls of the mixing chamber, a mixing device for thoroughly mixing the content of the mixing chamber, which is arranged in the interior of the mixing chamber. The mixing device is operable externally via a mixing rod and the mixing rod is guided through a passage in the discharge piston such that it can be rotated and displaced in the longitudinal direction by the discharge piston. ... Heraeus Medical Gmbh

03/30/17 / #20170087527

Device and method for manually opening glass ampules and a cementing device

A device and method manually opens glass ampules within the device, wherein the device comprises at least a holder with side walls closed at least in sections as a holder of glass ampules, wherein the holder comprises at least one deformable closed side wall and, opposite the deformable side wall, a supporting element is provided. The device further comprises at least a strainer/filter which is arranged below the holder so that the content of the opened glass ampule flows therethrough, a first lever which is pivoted around a first axis in such a manner that it can rotate against the holder, wherein a free end of the first lever can be pressed against the deformable side wall of the holder, a second lever which is pivoted around a second axis in such a manner that it can be rotated against the holder. ... Heraeus Medical Gmbh

03/16/17 / #20170072093

Polymethylmethacrylate bone cement with adjustable initial viscosity, and method for producing a bone cement dough with variable initial viscosity

A polymerizable polymethylmethacrylate bone cement, in which the initial viscosity of the cement dough can be controlled. The polymerizable bone cement composition comprises a monomer for radical polymerization, a powdered polymethylmethacrylate-co-polymer soluble in the monomer or a mixture comprising polymethylmethacrylate-co-polymers, a polymerization initiator, and a radiopaquer, wherein the powdered polymethylmethacrylate-co-polymer comprises at least one particulate polymethylmethacrylate-co-polymer having a molar mass of more than or equal to 200,000 g/mol, and the polymethylmethacrylate-co-polymer is obtainable by polymerization of a mixture of 90.0% or more by weight methylmethacrylate and 10.0% or less by weight of one or more comonomers, wherein the weight ratio of component a comprising the polymethylmethacrylate-co-polymer, radiopaquer, and polymerization initiator, and component b comprising a monomer for radical polymerization, stabiliser, and polymerization accelerator, is approximately 2.0 to 3.4 to 1.0, for controlling the initial viscosity of the bone cement dough formed by mixing components a and b.. ... Heraeus Medical Gmbh

01/19/17 / #20170014786

Vacuum mixing system and method for the mixing of polymethylmethacrylate bone cement

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.. ... Heraeus Medical Gmbh








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