发明名称 |
Osteosynthesis with nano-silver |
摘要 |
An antibacterial coating that is composed of silver is disclosed, as well as medical tools and implants comprising such a coating, and a method and an apparatus for the production of such a coating. The medical tools or the dental or orthopaedic implant comprises a metal or metal alloy having a treated surface wherein the treated surface is at least partially converted to an oxide film by plasma electrolytic oxidation using a colloid-dispersed system and wherein the converted surface is partially covered by islands formed by colloid-dispersed silver-particles of the colloid-dispersed system. An Ag—TiO2 coating shows excellent properties in terms of antibacterial efficacy (even against multi-resistant strains), adhesion and biocompatibility. The life-time of an implant in a human body is increased. The antibacterial coating can be used in the field of traumatology, orthopaedic, osteosynthesis and/or endoprothesis, especially where high infection risk exists. |
申请公布号 |
US2014332394(A2) |
申请公布日期 |
2014.11.13 |
申请号 |
US201414148341 |
申请日期 |
2014.01.06 |
申请人 |
aap Biomaterials GmbH |
发明人 |
Dingeldein Elvira;Gasqueres Cyrille;Witte Frank;Eliezer Amir |
分类号 |
C25D11/02 |
主分类号 |
C25D11/02 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for treating a surface of a medical device, the method comprising:
providing a colloid-dispersed system; subjecting a medical device to the colloid-dispersed system such that a surface of the medical device which is to be treated is immersed in the colloid-dispersed system; and generating an AC voltage difference between i) the medical device as a first electrode and ii) a second electrode positioned in the colloid-dispersed system, in order to convert the immersed surface to an oxide film by plasma electrolytic oxidation wherein the converted surface is partially covered by islands formed by colloid-dispersed particles of the colloid-dispersed system. |
地址 |
Dieburg DE |