Patents by Inventor Klaus-Dieter Kuhn

Klaus-Dieter Kuhn 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).

  • Publication number: 20190192740
    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.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 27, 2019
    Inventors: Sebastian VOGT, Hubert BÜCHNER, Klaus-Dieter KÜHN
  • Patent number: 9833472
    Abstract: The invention proposes an antiseptic composition for use as bone cement, in particular an antiseptic polymethylmethacrylate bone cement, that can be cured and comprises a content of at least one component that is a compound with an oxidizing effect or from which a compound with an oxidizing effect can be released. Preferably, hydrogen peroxide is or can be released. In this context, it is particularly preferred to use an adduct or a salt of hydrogen peroxide that releases hydrogen peroxide in the presence of water or aqueous conditions. The antiseptic polymethylmethacrylate bone cement can be used for mechanical fixation of primary total articular endoprostheses, for mechanical fixation of revision total articular endoprostheses, and for producing spacers.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: December 5, 2017
    Assignee: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Klaus-Dieter Kühn
  • Patent number: 9700657
    Abstract: The invention relates to a composite material that comprises at least one magnesium component, whereby the magnesium component consists of pure magnesium or a magnesium-calcium alloy or a magnesium-calcium-X alloy, whereby X is another biodegradable element. The composite material also contains at least one organic anti-infective agent having a solubility in water at room temperature of less than 10 grams per liter.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: July 11, 2017
    Assignees: HERAEUS MEDICAL GMBH, MEDIZINISCHE UNIVERSITÄT GRAZ
    Inventors: Klaus-Dieter Kühn, Annelie Weinberg, Peter Uggowitzer, Sebastian Vogt, Jörg Löffler
  • Patent number: 9480778
    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.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 1, 2016
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Klaus-Dieter Kühn
  • Patent number: 9241746
    Abstract: The invention relates to an anti-infective spacer for osteosynthesis plates comprising a plate having at least one opening for accommodating a screw, whereby the plate is made up of at least one biocompatible material, in which at least one antimicrobial substance is distributed, dispersed or dissolved. The invention also relates to a set comprising at least one osteosynthesis plate and at least one said spacer, preferably comprising at least one screw for each recess of each spacer.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 26, 2016
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Klaus-Dieter Kühn
  • Patent number: 9078959
    Abstract: A device for coating at least regions of a medical implant includes an elastically deformable transfer means having a liquid that contains at least one pharmaceutically active substance. The liquid can be transferred to the medical implant when the transfer means is contacted with a surface of the medical implant.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: July 14, 2015
    Assignee: Heraeus Medical GmbH
    Inventors: Sebastian Vogt, Klaus-Dieter Kühn
  • Patent number: 8962008
    Abstract: The present invention relates to a novel polymeric material with enhanced hydrophilicity for medical use comprising a biocompatible polyester material selected from the group consisting of poly(hydroxyalkanoate)s, poly(lactic acid)s, poly(glycolic acid)s, poly(caprolactone)s and copolymers and blends thereof, wherein the biocompatible polyester material is crosslinked with a functionalized poly(alkylene oxide) having at least two functional groups independently selected from the group consisting of azido-formate and alkanoyl azide. The novel polymeric material with enhanced hydrophilicity is useful as a biocompatible material in a variety of medical applications, including medical implants, bioresorbable implants, tissue engineering, and controlled release.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: February 24, 2015
    Assignees: Technische Universitat Graz, Medical University of Graz MUG, AT&S Austria Technologie & Systemtechnik Aktiengesellschaft, Herabus Medical GmbH
    Inventors: Frank Wiesbrock, Clemens Ebner, Franz Stelzer, Annelie-Martina Weinberg, Klaus-Dieter Kühn
  • Publication number: 20150032201
    Abstract: The invention relates to a composite material that comprises at least one magnesium component, whereby the magnesium component consists of pure magnesium or a magnesium-calcium alloy or a magnesium-calcium-X alloy, whereby X is another biodegradable element. The composite material also contains at least one organic anti-infective agent having a solubility in water at room temperature of less than 10 grams per liter.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Applicants: MEDIZINISCHE UNIVERSITÄT GRAZ, HERAEUS MEDICAL GMBH
    Inventors: KLAUS-DIETER KÜHN, ANNELIE WEINBERG, PETER UGGOWITZER, SEBASTIAN VOGT, JÖRG LÖFFLER
  • Publication number: 20140228449
    Abstract: The present invention relates to a novel polymeric material with enhanced hydrophilicity for medical use comprising a biocompatible polyester material selected from the group consisting of poly(hydroxyalkanoate)s, poly(lactic acid)s, poly(glycolic acid)s, poly(caprolactone)s and copolymers and blends thereof, wherein the biocompatible polyester material is crosslinked with a functionalized poly(alkylene oxide) having at least two functional groups independently selected from the group consisting of azido-formate and alkanoyl azide. The novel polymeric material with enhanced hydrophilicity is useful as a biocompatible material in a variety of medical applications, including medical implants, bioresorbable implants, tissue engineering, and controlled release.
    Type: Application
    Filed: June 20, 2012
    Publication date: August 14, 2014
    Applicant: Technische Universitat Graz
    Inventors: Frank Wiesbrock, Clemens Ebner, Franz Stelzer, Annelie-Martina Weinberg, Klaus-Dieter Kühn
  • Patent number: 8758827
    Abstract: A local system for the release of active principle is described which consists of approximately spherical or rotation symmetrical bodies which are composed essentially of polymethyl methacrylate or polymethyl methacrylate co-methyl acrylate, zirconium dioxide or barium sulphate and one or more pharmaceutical active principles, in particular antibiotics, and which are produced by radical polymerization, radical polymerization activators effective in the temperature range of 10-80° C. or residues of these polymerization activators from the groups of aromatic amines, heavy metal salts and barbiturates not being contained therein.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: June 24, 2014
    Assignee: Heraeus Medical GmbH
    Inventors: Klaus-Dieter Kuhn, Sebastian Vogt
  • Publication number: 20140141097
    Abstract: The invention proposes an antiseptic composition for use as bone cement, in particular an antiseptic polymethylmethacrylate bone cement, that can be cured and comprises a content of at least one component that is a compound with an oxidising effect or from which a compound with an oxidising effect can be released. Preferably, hydrogen peroxide is or can be released. In this context, it is particularly preferred to use an adduct or a salt of hydrogen peroxide that releases hydrogen peroxide in the presence of water or aqueous conditions. The antiseptic polymethylmethacrylate bone cement can be used for mechanical fixation of primary total articular endoprostheses, for mechanical fixation of revision total articular endoprostheses, and for producing spacers.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian VOGT, Klaus-Dieter Kühn
  • Publication number: 20130267954
    Abstract: The invention relates to an anti-infective spacer for osteosynthesis plates comprising a plate having at least one opening for accommodating a screw, whereby the plate is made up of at least one biocompatible material, in which at least one antimicrobial substance is distributed, dispersed or dissolved. The invention also relates to a set comprising at least one osteosynthesis plate and at least one said spacer, preferably comprising at least one screw for each recess of each spacer.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 10, 2013
    Inventors: Sebastian Vogt, Klaus-Dieter Kühn
  • Publication number: 20120164309
    Abstract: A device for coating at least regions of a medical implant includes an elastically deformable transfer means having a liquid that contains at least one pharmaceutically active substance. The liquid can be transferred to the medical implant when the transfer means is contacted with a surface of the medical implant.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 28, 2012
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian VOGT, Klaus-Dieter KÜHN
  • Publication number: 20120164312
    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.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian VOGT, Klaus-Dieter KÜHN
  • Patent number: 8092824
    Abstract: An antibiotic coating of implants is described, which is characterized in that the coating comprises at least one saturated, organic, hydrophobic, low molecular matrix former whose melting point is in the temperature range of 45° C. to 100° C., in which a low molecular, hydrophobic additive is dissolved and that an antibiotic/antibiotics is/are suspended in the mixture of matrix former and additive and/or in which an antibiotic/antibiotics miscible with a mixture of matrix former and additive is/are dissolved.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: January 10, 2012
    Assignee: Heraeus Kulzer GmbH
    Inventors: Klaus-Dieter Kühn, Sebastian Vogt, Matthias Schnabelrauch
  • Patent number: 8075907
    Abstract: The invention relates to a PMMA revision bone cement having powder and liquid component, in which the powder component contains two or more granular antibiotics whose grain size distribution is equal in that the main screening fraction each of the individual antibiotics is in the same grain size range, in particular in the range of 100-250 ?m or 150-250 ?m.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: December 13, 2011
    Assignee: Heraeus Kulzer GmbH
    Inventors: Klaus-Dieter Kühn, Sebastian Vogt, Hubert Büchner
  • Publication number: 20110287064
    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.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 24, 2011
    Applicant: HERAEUS MEDICAL GMBH
    Inventors: Sebastian VOGT, Hubert BÜCHNER, Klaus-Dieter KÜHN
  • Patent number: 8012173
    Abstract: A surgical suture material with an antimicrobial surface is described, the surface exhibiting a coating containing a) at least one fatty acid, b) octenidine dichloride and/or dequalinium chloride and c) optionally oligomeric lactic acid esters. In addition, a process for coating surgical suture material is described which is characterized by the fact that the thread material is wetted with a homogeneous methanolic solution of octenidine dichloride and/or dequalinium chloride and subsequently the methanol is evaporated, a coating forming on the thread surface.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 6, 2011
    Assignee: Heraeus Kulzer GmbH
    Inventors: Sebastian Vogt, Klaus-Dieter Kuhn, Hubert Büchner
  • Patent number: 7923019
    Abstract: Antibiotic/s containing bone substitute material is described which is characterized in that it is composed of a compacted mixture of granules of calcium sulfate dihydrate, calcium carbonate and at least one representative of the aminoglycoside antibiotics, lincosamide antibiotics, glycopeptide antibiotics, macrolide antibiotics, ketolide antibiotics, the nitroimidazoles, the fluorochinolone antibiotics and the oxazolidinone antibiotics, the steroid antibiotics, the antiseptic agents and the fungicidal/fungistatic antibiotics which are partly or entirely sheathed with a layer of glycerol tripalmitate and/or glycerol tristearate and/or glycerol trilaurate and/or 1-hexadecyl alcohol which connects the granules with each other.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: April 12, 2011
    Assignee: Heraeus Kulzer GmbH
    Inventors: Klaus-Dieter Kühn, Sebastian Vogt
  • Publication number: 20110062637
    Abstract: A local system for the release of active principle is described which consists of approximately spherical or rotation symmetrical bodies which are composed essentially of polymethyl methacrylate or polymethyl methacrylate co-methyl acrylate, zirconium dioxide or barium sulphate and one or more pharmaceutical active principles, in particular antibiotics, and which are produced by radical polymerisation, radical polymerisation activators effective in the temperature range of 10-80° C. or residues of these polymerisation activators from the groups of aromatic amines, heavy metal salts and barbiturates not being contained therein.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 17, 2011
    Applicant: Heraeus Kulzer GmbH
    Inventors: Klaus-Dieter Kuhn, Sebastian Vogt