The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2016
Filed:
Jul. 15, 2011
Elvira Dingeldein, Monchberg, DE;
Cyrille Gasqueres, Aschaffenburg, DE;
Amir Eliezer, Omer, IL;
Marco Wolfstadter, Worth/Main, DE;
Lydia Heimann, Hoesbach, DE;
Elvira Dingeldein, Monchberg, DE;
Cyrille Gasqueres, Aschaffenburg, DE;
Amir Eliezer, Omer, IL;
Marco Wolfstadter, Worth/Main, DE;
Lydia Heimann, Hoesbach, DE;
AAP IMPLANTATE AG, Berlin, DE;
Abstract
The present invention relates generally to a bio-degradable implant based on magnesium having a reduced corrosion rate and to a method for the production of such an implant. It is a a method for treating a surface of a bio-degradable metallic implant comprising the following steps: providing a dispersed system comprising a colloid-dispersed apatite and adding an apatite powder to the dispersed system, subjecting an implant to the dispersed system such that a surface of the implant which is to be treated is immersed in the dispersed system wherein the implant comprises a magnesium based alloy, applying an AC voltage difference between the implant as a first electrode and a second electrode positioned in the dispersed system for generating a plasma electrolytic oxidation on the immersed surface of the implant so that the immersed surface is converted to an oxide film which is at least partially covered by apatites formed by the colloid-dispersed apatite and the apatite powder. The evolution of corrosion induced hydrogen gas evolution is decreased and osseointegration is improved.