Patents Assigned to DOT GmbH
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Patent number: 9492588Abstract: A calcium phosphate/copper coating for an implant is provided which includes highly porous calcium phosphate and predominantly discontinuously distributed copper. The highly porous calcium phosphate first forms a highly porous calcium phosphate layer in which the copper has been incorporated so as to be discontinuously distributed, to form the calcium phosphate/copper coating. Further provided are a method of producing such a calcium phosphate/copper coating and an implant coated therewith.Type: GrantFiled: January 22, 2013Date of Patent: November 15, 2016Assignee: DOT GMBHInventors: Hans-Georg Neumann, Cornelia Prinz
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Patent number: 9119687Abstract: A method of manufacturing a functionalized implant, in particular a dental implant, is provided, including first providing a substrate for the implant and applying a highly porous, hydrophilic coating which contains at least one of the following materials for functionalization: zirconium or titanium or zirconium alloy or titanium alloy, zirconium oxide or titanium oxide, calcium phosphate, calcium titanate or calcium zirconate. Further provision is made for a functionalized implant, in particular a dental implant.Type: GrantFiled: March 7, 2014Date of Patent: September 1, 2015Assignee: DOT GmbHInventors: Hans-Georg Neumann, Ulrich Lembke
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Patent number: 9107981Abstract: An antibacterial coating for an implant is provided that contains copper. A method of producing an antibacterial coating for an implant is also provided that includes the coating being applied by a PVD process and the layer generated by the PVD process includes a copper content.Type: GrantFiled: November 28, 2011Date of Patent: August 18, 2015Assignee: DOT GMBHInventors: Hans-Georg Neumann, Cornelia Prinz, Ulrich Lembke
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Patent number: 8911817Abstract: A method and apparatus for coating catheters or balloon catheters is disclosed in which the catheter or balloon catheter is radially surrounded completely or almost completely at a constant distance by a device that applies a coating solution so that the coating solution completely fills the space between the catheter or balloon catheter and the device and thus completely surrounds the catheter or balloon catheter, relative motion is effected between the device and the catheter or balloon catheter in the axial direction across the surface of the catheter or balloon catheter multiple times, and partial drying of the applied coating solution occurs between the individual coating stages.Type: GrantFiled: June 16, 2010Date of Patent: December 16, 2014Assignee: DOT GmbHInventors: Hans-Georg Neumann, Mischa Buhrmeister
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Publication number: 20140255874Abstract: A method of manufacturing a functionalized implant, in particular a dental implant, is provided, including first providing a substrate for the implant and applying a highly porous, hydrophilic coating which contains at least one of the following materials for functionalization: zirconium or titanium or zirconium alloy or titanium alloy, zirconium oxide or titanium oxide, calcium phosphate, calcium titanate or calcium zirconate. Further provision is made for a functionalized implant, in particular a dental implant.Type: ApplicationFiled: March 7, 2014Publication date: September 11, 2014Applicant: DOT GMBHInventors: Hans-Georg Neumann, Ulrich Lembke
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Patent number: 8828552Abstract: The invention relates to a method for producing an anti-infective coating on implants that contain titanium or are composed of titanium. The aim of the invention is to provide a coating method with which it is possible, for implants made of titanium or that contain titanium, to combine the optimization of the mechanical properties achieved with the anodic oxidation type II with the optimization of the anti-infective properties. According to the invention, the implants are anodically oxidized in an alkaline solution, then metal having anti-infective properties is electrodeposited on said surface, and afterwards the oxide layer containing metal is solidified.Type: GrantFiled: January 4, 2010Date of Patent: September 9, 2014Assignee: Dot GmbHInventors: Hans-Georg Neumann, Cornelia Prinz
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Publication number: 20130252021Abstract: The invention relates to the antibacterial coating for an implant, which is characterized in that the coating contains copper. The invention also relates to a method of producing an antibacterial coating for an implant, the coating being applied by means of a PVD process, and the method being characterized in that the layer generated contains a copper content.Type: ApplicationFiled: November 28, 2011Publication date: September 26, 2013Applicant: DOT GMBHInventors: Hans-Georg Neumann, Cornelia Prinz, Ulrich Lembke
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Publication number: 20130189323Abstract: A calcium phosphate/copper coating for an implant is provided which includes highly porous calcium phosphate and predominantly discontinuously distributed copper. The highly porous calcium phosphate first forms a highly porous calcium phosphate layer in which the copper has been incorporated so as to be discontinuously distributed, to form the calcium phosphate/copper coating. Further provided are a method of producing such a calcium phosphate/copper coating and an implant coated therewith.Type: ApplicationFiled: January 22, 2013Publication date: July 25, 2013Applicant: DOT GMBHInventor: DOT GmbH
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Publication number: 20120100279Abstract: In a method and apparatus for coating catheters or balloon catheters the catheter or balloon catheter is radially surrounded completely or almost completely at a constant distance by a device that applies a coating solution so that the coating solution completely fills the space between the catheter or balloon catheter and the device and thus completely surrounds the catheter or balloon catheter, relative motion is effected between the device and the catheter or balloon catheter in the axial direction across the surface of the catheter or balloon catheter multiple times, and partial drying of the applied coating solution occurs between the individual coating stages.Type: ApplicationFiled: June 16, 2010Publication date: April 26, 2012Applicant: DOT GmbHInventors: Hans-Georg Neumann, Mischa Buhrmeister
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Patent number: 7344749Abstract: A method for coating substrates with calcium phosphate. The aim of the method is to be able to carry out a simple coating for all materials as well as for particles. To this end, the substrate to be coated is placed in a calcium phosphate gel, whereupon this substrate that is coated with the gel is dried. Afterwards, the calcium phosphate particles not adhering to the substrate are removed. The substrate can also be placed inside a colloidal solution of SiO2 containing a calcium phosphate, whereupon the mixture is constantly set in motion, the solvent is removed, and the substrate is provided with a calcium phosphate layer by condensing the colloidal SiO2 on the surface of the substrate. The coated substrates can, particularly when it concerns coated particles, be used as a bone substitute material.Type: GrantFiled: December 6, 2002Date of Patent: March 18, 2008Assignee: DOT GmbHInventors: Petra Becker, Mischa Buhrmeister, Hans-Georg Neumann, Marianne Teller