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    • 3. 发明申请
    • APATITE COATINGS ON MG SREWS
    • 粉末涂料在MG SREWS上
    • WO2012007181A1
    • 2012-01-19
    • PCT/EP2011/003582
    • 2011-07-18
    • AAP BIOMATERIALS GMBHDINGELDEIN, ElviraGASQUERES, CyrilleELIEZER, AmirWOLFSTÄDTER, MarcoHEIMANN, Lydia
    • DINGELDEIN, ElviraGASQUERES, CyrilleELIEZER, AmirWOLFSTÄDTER, MarcoHEIMANN, Lydia
    • A61L31/08C25D11/30A61L31/02A61L31/14
    • A61L31/086A61L31/022A61L31/148A61L2400/18C25D11/026C25D11/30
    • 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.
    • 本发明一般涉及具有降低的腐蚀速率的基于镁的生物可降解植入物和用于生产这种植入物的方法。 它是用于处理生物可降解金属植入物的表面的方法,包括以下步骤:提供包含胶体分散的磷灰石并将磷灰石粉末加入到分散体系中的分散体系,使植入物经受分散体系,使得 将待处理的植入物的表面浸入分散体系中,其中植入物包括镁基合金,在作为第一电极的植入物和位于分散系统中的第二电极之间施加AC电压差以产生等离子体电解质 在植入物的浸渍表面上氧化,使得浸入的表面转化为至少部分被由胶体分散的磷灰石和磷灰石粉末形成的磷灰石覆盖的氧化膜。 腐蚀诱导氢气演化的演化减少,骨整体提高。
    • 10. 发明公开
    • APATITE COATINGS ON MG SREWS
    • APATITBESCHICHTUNGEN AUF MG-SCHRAUBEN
    • EP2593152A1
    • 2013-05-22
    • EP11748888.2
    • 2011-07-18
    • AAP Biomaterials GmbH
    • DINGELDEIN, ElviraGASQUERES, CyrilleELIEZER, AmirWOLFSTÄDTER, MarcoHEIMANN, Lydia
    • A61L31/08C25D11/30A61L31/02A61L31/14
    • A61L31/086A61L31/022A61L31/148A61L2400/18C25D11/026C25D11/30
    • 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.
    • 本发明一般涉及具有降低的腐蚀速率的基于镁的生物可降解植入物和用于生产这种植入物的方法。 它是用于处理生物可降解金属植入物的表面的方法,包括以下步骤:提供包含胶体分散的磷灰石并将磷灰石粉末加入到分散体系中的分散体系,使植入物经受分散体系,使得 将要处理的植入物的表面浸入分散体系中,其中植入物包括镁基合金,在作为第一电极的植入物和位于分散系统中的第二电极之间施加AC电压差以产生等离子体电解质 在植入物的浸渍表面上氧化,使浸入的表面转化为至少部分被由胶体分散的磷灰石和磷灰石粉末形成的磷灰石覆盖的氧化膜。 腐蚀诱导的氢气演化的演化减少,骨整体提高。