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).
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Patent number: 11951024Abstract: 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: GrantFiled: January 8, 2018Date of Patent: April 9, 2024Assignee: BIOTRONIK AGInventors: Ullrich Bayer, Fabian Risch, Johannes Riedmueller, Bodo Quint
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Publication number: 20190336310Abstract: 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: ApplicationFiled: January 8, 2018Publication date: November 7, 2019Inventors: ULLRICH BAYER, FABIAN RISCH, JOHANNES RIEDMUELLER, BODO QUINT
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Patent number: 10272183Abstract: 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: GrantFiled: June 20, 2011Date of Patent: April 30, 2019Assignee: BIOTRONIK AGInventors: Ullrich Bayer, Wolfgang Schultz, Nils Venohr, Johannes Riedmueller, Martina Schroeder
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Patent number: 8992600Abstract: 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: GrantFiled: November 3, 2011Date of Patent: March 31, 2015Assignee: Biotronik AGInventors: Nils Goetzen, Anna Mirabelli, Andre Schoof, Ullrich Bayer, Dirk Sadler, Johannes Riedmueller
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Patent number: 8262722Abstract: 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: GrantFiled: November 5, 2009Date of Patent: September 11, 2012Assignee: BIOTRONIK VI Patent AGInventors: Bjoern Klocke, Johannes Riedmueller
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Publication number: 20120116499Abstract: 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: ApplicationFiled: November 3, 2011Publication date: May 10, 2012Applicant: BIOTRONIK AGInventors: Nils Goetzen, Anna Mirabelli, Andre Schoof, Ullrich Bayer, Dirk Sadler, Johannes Riedmueller
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Publication number: 20110319982Abstract: 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: ApplicationFiled: June 20, 2011Publication date: December 29, 2011Applicant: BIOTRONIK AGInventors: Ullrich Bayer, Wolfgang Schultz, Nils Venohr, Johannes Riedmueller, Martina Schroeder
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Publication number: 20110093061Abstract: 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: ApplicationFiled: December 23, 2010Publication date: April 21, 2011Applicant: BIOTRONIK VI PATENT AGInventors: Daniel Lootz, Bettina Surber, Daniel Wintsch, Johannes Riedmüller
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Publication number: 20110034991Abstract: 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: ApplicationFiled: October 12, 2010Publication date: February 10, 2011Applicant: BIOTRONIK VI PATENT AGInventors: Harald Barthel, Matthias Fringes, Bodo Gerold, Johannes Riedmueller
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Publication number: 20100121432Abstract: 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: ApplicationFiled: November 5, 2009Publication date: May 13, 2010Applicant: BIOTRONIK VI PATENT AGInventors: Bjoern Klocke, Johannes Riedmueller
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Publication number: 20080243230Abstract: 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: ApplicationFiled: March 28, 2008Publication date: October 2, 2008Applicant: BIOTRONIK VI PATENT AGInventors: Daniel Lootz, Bettina Surber, Daniel Wintsch, Johannes Riedmueller
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Publication number: 20080033531Abstract: 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: ApplicationFiled: August 7, 2007Publication date: February 7, 2008Applicant: BIOTRONIK VI PATENT AGInventors: Harald Barthel, Matthias Fringes, Bodo Gerold, Johannes Riedmueller
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Publication number: 20080033576Abstract: 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: ApplicationFiled: August 7, 2007Publication date: February 7, 2008Applicant: BIOTRONIK VI PATENT AGInventors: Bodo Gerold, Johannes Riedmueller, Heinz Mueller, Claus Harder