Patents by Inventor Johannes Riedmueller

Johannes Riedmueller 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: 11951024
    Abstract: A method for producing x-ray markers. During the process, a predetermined breaking point is severed in order to detach x-ray markers from part of a material layer. There is also described an x-ray marker, a medical implant, and a semifinished product.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: April 9, 2024
    Assignee: BIOTRONIK AG
    Inventors: Ullrich Bayer, Fabian Risch, Johannes Riedmueller, Bodo Quint
  • Publication number: 20190336310
    Abstract: A method for producing x-ray markers. During the process, a predetermined breaking point is severed in order to detach x-ray markers from part of a material layer. There is also described an x-ray marker, a medical implant, and a semifinished product.
    Type: Application
    Filed: January 8, 2018
    Publication date: November 7, 2019
    Inventors: ULLRICH BAYER, FABIAN RISCH, JOHANNES RIEDMUELLER, BODO QUINT
  • Patent number: 10272183
    Abstract: The present invention relates to an implant, in particular an intraluminal endoprothesis, comprising a body containing a metallic material, and comprising at least one functional element that is fastened to the body and has a material composition in at least a portion of its volume that differs from the material of the body, the material composition preferably including radio-opaque and/or x-ray opaque material. To effectively prevent accelerated degradation due to the formation of a local cell of the material of the body and the functional element, the at least one functional element includes a first layer at least in the region of its surface where it is bonded to the body, the first layer primarily containing at least one metal oxide. Furthermore, the manufacture of an implant of this type is described.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: April 30, 2019
    Assignee: BIOTRONIK AG
    Inventors: Ullrich Bayer, Wolfgang Schultz, Nils Venohr, Johannes Riedmueller, Martina Schroeder
  • Patent number: 8992600
    Abstract: A marker composite for medical implants composed of a biocorrodible metallic material and a medical implant comprising an X-ray marker which was made of the marker composite. The marker composite contains a large number of particles composed of a radio-opaque metal, which are embedded in an electrically non-conductive polymer. The particles have an additional electrically non-conductive coating.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: March 31, 2015
    Assignee: Biotronik AG
    Inventors: Nils Goetzen, Anna Mirabelli, Andre Schoof, Ullrich Bayer, Dirk Sadler, Johannes Riedmueller
  • Patent number: 8262722
    Abstract: An endoprosthesis, in particular an intraluminal endoprosthesis, for example a stent, having a base body composed at least partially of a metallic material, and having a functional element which is attached to the base body or imbedded therein and which contains material that is radiopaque and/or X-ray opaque and has a different material composition, at least in a portion of its volume, compared to the material of the base body. To avoid contact corrosion and undesired corrosion, the functional element is provided with a barrier layer which electrically insulates the radiopaque and/or X-ray opaque material from the base body.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: September 11, 2012
    Assignee: BIOTRONIK VI Patent AG
    Inventors: Bjoern Klocke, Johannes Riedmueller
  • Publication number: 20120116499
    Abstract: A marker composite for medical implants composed of a biocorrodible metallic material and a medical implant comprising an X-ray marker which was made of the marker composite. The marker composite contains a large number of particles composed of a radio-opaque metal, which are embedded in an electrically non-conductive polymer. The particles have an additional electrically non-conductive coating.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 10, 2012
    Applicant: BIOTRONIK AG
    Inventors: Nils Goetzen, Anna Mirabelli, Andre Schoof, Ullrich Bayer, Dirk Sadler, Johannes Riedmueller
  • Publication number: 20110319982
    Abstract: The present invention relates to an implant, in particular an intraluminal endoprothesis, comprising a body containing a metallic material, and comprising at least one functional element that is fastened to the body and has a material composition in at least a portion of its volume that differs from the material of the body, the material composition preferably including radio-opaque and/or x-ray opaque material. To effectively prevent accelerated degradation due to the formation of a local cell of the material of the body and the functional element, the at least one functional element includes a first layer at least in the region of its surface where it is bonded to the body, the first layer primarily containing at least one metal oxide. Furthermore, the manufacture of an implant of this type is described.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 29, 2011
    Applicant: BIOTRONIK AG
    Inventors: Ullrich Bayer, Wolfgang Schultz, Nils Venohr, Johannes Riedmueller, Martina Schroeder
  • Publication number: 20110093061
    Abstract: A stent made of a material having a low strength and having a main body circumscribing a cylindrical shape and radially expandable from a contracted starting position into a dilated support position, comprising a) a plurality of support segments disposed around the circumference and arrayed on one another in the axial direction each segment being formed by a strut meandering in its coarse structure in its contracted starting position and having alternately opposing meandering curves expandable into the support position made of flexible material; b) a plurality of axial connectors connecting between zenith points of at least a part of the meandering curves in the axial-parallel direction of the support segments; (c) a plurality of x-ray marker projections, and d) at least one stabilizer for stabilizing the strut coarse structure in its contracted starting position against radial expansion and being automatically detachable upon radial expansion.
    Type: Application
    Filed: December 23, 2010
    Publication date: April 21, 2011
    Applicant: BIOTRONIK VI PATENT AG
    Inventors: Daniel Lootz, Bettina Surber, Daniel Wintsch, Johannes Riedmüller
  • Publication number: 20110034991
    Abstract: An endoprosthesis, in particular, an intraluminal endoprosthesis, e.g., a stent, having a basic mesh and a functional element attached to a carrier structure, the functional element having a different material composition than the material of the basic mesh in at least a portion of its volume. The carrier structure is arranged on the basic mesh in the first essentially finger-shaped end and protrudes away from the mesh essentially like a projection. The functional element is arranged on an area of the carrier structure protruding away from the base body and at least partially surrounds the area of the carrier structure.
    Type: Application
    Filed: October 12, 2010
    Publication date: February 10, 2011
    Applicant: BIOTRONIK VI PATENT AG
    Inventors: Harald Barthel, Matthias Fringes, Bodo Gerold, Johannes Riedmueller
  • Publication number: 20100121432
    Abstract: The invention relates to an endoprosthesis, in particular an intraluminal endoprosthesis, for example a stent, having a base body composed at least partially of a metallic material, and having a functional element which is attached to the base body or imbedded therein and which contains material that is radiopaque and/or X-ray opaque and has a different material composition, at least in a portion of its volume, compared to the material of the base body. To avoid contact corrosion and undesired corrosion, the functional element is provided with a barrier layer which electrically insulates the radiopaque and/or X-ray opaque material from the base body.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 13, 2010
    Applicant: BIOTRONIK VI PATENT AG
    Inventors: Bjoern Klocke, Johannes Riedmueller
  • Publication number: 20080243230
    Abstract: A stent made of a material having a low strength and having a main body circumscribing a cylindrical shape and radially expandable from a contracted starting position into a dilated support position, comprising a) a plurality of support segments disposed around the circumference and arrayed on one another in the axial direction each segment being formed by a strut meandering in its coarse structure in its contracted starting position and having alternately opposing meandering curves expandable into the support position made of flexible material; b) a plurality of axial connectors connecting between zenith points of at least a part of the meandering curves in the axial-parallel direction of the support segments; and c) at least one means for stabilizing the strut coarse structure in its contracted starting position against radial expansion and being automatically detachable upon a radial expansion of the stent.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: BIOTRONIK VI PATENT AG
    Inventors: Daniel Lootz, Bettina Surber, Daniel Wintsch, Johannes Riedmueller
  • Publication number: 20080033531
    Abstract: An endoprosthesis, in particular, an intraluminal endoprosthesis, e.g., a stent, having a basic mesh and a functional element attached to a carrier structure, the functional element having a different material composition than the material of the basic mesh in at least a portion of its volume. The carrier structure is arranged on the basic mesh in the first essentially finger-shaped end and protrudes away from the mesh essentially like a projection. The functional element is arranged on an area of the carrier structure protruding away from the base body and at least partially surrounds the area of the carrier structure.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 7, 2008
    Applicant: BIOTRONIK VI PATENT AG
    Inventors: Harald Barthel, Matthias Fringes, Bodo Gerold, Johannes Riedmueller
  • Publication number: 20080033576
    Abstract: An x-ray marker for medical implants made of a biocorrodible metallic material, the x-ray marker comprises a boride or carbide of the elements tantalum or tungsten.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 7, 2008
    Applicant: BIOTRONIK VI PATENT AG
    Inventors: Bodo Gerold, Johannes Riedmueller, Heinz Mueller, Claus Harder