Patents by Inventor Hubert BUECHNER

Hubert BUECHNER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8944296
    Abstract: A dispensing device for cartridges having a trigger grip for operating a valve of the dispensing device, a connection for supplying a pressurized gas, a cartridge connector for connecting a cartridge, and a base body, in which at least one passage extends through such that pressurized gas can be guided to the cartridge connector. The cartridge connector comprises an opening towards the passage such that the content can be expelled from the cartridge upon application of the pressurized gas to the floor of a cartridge when the cartridge is arranged in the cartridge connector, and wherein the passage can be closed and opened through the operated valve. The valve has a valve body that is arranged in the base body in a rotatable manner, wherein a motion of the trigger grip leads to a rotation of the valve body in the base body.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 3, 2015
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Büchner
  • Publication number: 20150013597
    Abstract: A device for coating at least regions of a medical implant including a powder having at least one pharmaceutically active substance or one bone growth-promoting substance such that the powder can be transferred to the medical implant when the medical implant is contacted.
    Type: Application
    Filed: October 1, 2014
    Publication date: January 15, 2015
    Inventors: Sebastian VOGT, Hubert BÜCHNER
  • Patent number: 8895098
    Abstract: A device for coating at least regions of a medical implant including a powder having at least one pharmaceutically active substance or one bone growth-promoting substance such that the powder can be transferred to the medical implant when the medical implant is contacted.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 25, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Büchner
  • Patent number: 8865777
    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.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: October 21, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Büchner
  • Publication number: 20140303275
    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.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Inventors: Sebastian VOGT, Hubert BÜCHNER
  • Patent number: 8791172
    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.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 29, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Büchner
  • Patent number: 8770451
    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.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: July 8, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Buechner
  • Patent number: 8757866
    Abstract: A device (10) for mixing and dispensing bone cement includes a mixing cylinder (20), in which a mixing plunger (21) is arranged, the mixing plunger (21) being axially movable by an actuation rod (50) guided out in a sealed manner at a first cylinder end (30). A sealing plunger (42) is arranged in a region of the first cylinder end (30), is axially movable on the actuation rod (50) and seals the mixing cylinder (20) in a gas-tight manner. A sterilization plunger (41) is arranged in the region of the first cylinder end (30) between the mixing plunger (21) and the sealing plunger (42), is axially movable on the actuation rod (50) separately from the sealing plunger (42), and seals the mixing cylinder (20) in a gas-permeable manner. The sterilization plunger (41) and the sealing plunger (42) form a two-part plunger system (40).
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: June 24, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Buechner
  • Patent number: 8662736
    Abstract: A bone cement system (100) is provided having a mixing facility (10) for mixing and dispensing of bone cement, a reservoir container (112) for a monomer, and a conveyor (122). The mixing facility (10) has a mixing cylinder (20), which stores a bone cement powder. The monomer can be conveyed from the reservoir container (112) into the mixing cylinder (20) by the conveyor (122). A sieve element is (4) is arranged between the reservoir container (112) and the mixing facility (10), in order to prevent ingress of the bone cement powder from the mixing cylinder (20) into the conveyor (122). The mixing device (10) included a dispensing opening (23) for dispensing a bone cement mixed from the bone cement powder and the monomer. The dispensing opening (23) includes a shield (1) having at least one through-opening (2). The ratio of the area of the through-opening (2) to the area of the sieve element (4) is at least 1 to 3, and the distance between the shield (1) and the sieve element (4) is at least 1 mm.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: March 4, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Rochus Stöckli, Hubert Büchner
  • Patent number: 8613942
    Abstract: A medical system (10) is provided having a pulling device (20) and an active substance chain (50). The active substance chain (50) has at least two storage units (51) arranged like a chain, and at least one of the storage units (51) is loaded with a medicinal active substance. The pulling device (20) has a grip element (30) and a coupling element (40), and the coupling element (40) has at least one recess (41, 41?). In a free position (100) the active substance chain (50) is arranged separated from the pulling device (20), while in an inserted position (110) at least one of the storage units (51) is arranged form-fitting in a recess (41, 41?). The active substance chain (50) can be moved reversibly from the free position (100) into the inserted position (110).
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: December 24, 2013
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Buechner, Hans Boesebeck
  • Patent number: 8608030
    Abstract: Cartridge systems for application of a material have at least one cartridge having cartridge walls, a cartridge head having at least one opening in the cartridge head, and a bracket arranged on the cartridge head. A valve is mounted in rotatable manner in the bracket and has at least one passage through the valve that is connected to an outlet opening of the valve. In a closed position, the valve closes the at least one opening of at least one cartridge in a sealed manner. The at least one passage of the valve is connected to the at least one opening when the valve is located in an open position such that the cartridge content is squeezable out of the at least one cartridge through the outlet opening, and further wherein the valve is configured to be transitioned from a closed position to an open position through a rotation of the valve about an axis of symmetry of the valve.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: December 17, 2013
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Büchner, Tim Schnieber
  • Patent number: 8596499
    Abstract: Cartridge systems for application of a material have at least one cartridge having cartridge walls, a cartridge head having at least one opening in the cartridge head, and a bracket arranged on the cartridge head. A valve is mounted in rotatable manner in the bracket and has at least one passage through the valve that is connected to an outlet opening of the valve. In a closed position, the valve closes the at least one opening of at least one cartridge in a sealed manner. The at least one passage of the valve is connected to the at least one opening when the valve is located in an open position such that the cartridge content is squeezable out of the at least one cartridge through the outlet opening, and further wherein the valve is configured to be transitioned from a closed position to an open position through a rotation of the valve about an axis of symmetry of the valve.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: December 3, 2013
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Büchner, Tim Schnieber
  • Patent number: 8598251
    Abstract: A kit is provided based on two pastes designed to produce bone cement with high initial stability and therefore low post-cure. The kit includes a paste A and a paste B, wherein paste A contains (a1) a polymerizable monomer having a pH in water in the range of 5-9, (a2) a filling agent insoluble in (a1), and (a3) a barbituric acid derivative selected from the group consisting of 1,5-disubstituted barbiturates, 1,3,5-trisubstituted barbiturates, and 1,3,5-tetrasubstituted barbiturates, and paste B contains (b1) a polymerizable monomer having a pH in water in the range of 5-9, (b2) a filling agent insoluble in (b1), (b3) a peroxide soluble in (b1), (b4) a heavy metal compound insoluble in (b1) and selected from the group consisting of heavy metal salts and heavy metal complexes, and wherein at least one of the pastes A and B contains a halide salt.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: December 3, 2013
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Hubert Büchner
  • Publication number: 20130231673
    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.
    Type: Application
    Filed: April 15, 2011
    Publication date: September 5, 2013
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Hubert Buechner
  • Patent number: 8512762
    Abstract: What is described are sporicidal compositions, in which hydrogen peroxide and at least one radical stabilizer are homogeneously dissolved in a methacrylate monomer or a mixture of methacrylate monomers, and the quantitative ratio of radical stabilizer to hydrogen peroxide is larger than or equal to 1 to 1. The sporicidal monomer/monomer mixture is usually used for producing single component bone cement pastes; two-component bone cement pastes or monomer solutions for polymethylmethacrylate bone cements that are based on cement powder and monomer liquid.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: August 20, 2013
    Assignee: Heraeus GmbH
    Inventors: Sebastian Vogt, Hubert Büchner
  • Publication number: 20130181008
    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.
    Type: Application
    Filed: August 10, 2011
    Publication date: July 18, 2013
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Hubert Buechner
  • Publication number: 20130182528
    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.
    Type: Application
    Filed: August 10, 2011
    Publication date: July 18, 2013
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Hubert Buechner
  • Publication number: 20130180396
    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.
    Type: Application
    Filed: August 10, 2011
    Publication date: July 18, 2013
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Hubert Buechner
  • Publication number: 20130175290
    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.
    Type: Application
    Filed: August 10, 2011
    Publication date: July 11, 2013
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Hubert Buechner
  • Publication number: 20130172896
    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.
    Type: Application
    Filed: September 21, 2011
    Publication date: July 4, 2013
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Hubert Buechner