Title:
MICRO-ARC OXIDIZED, SELF-CLOSING-PORE, ACTIVE COATING OF MAGNESIUM-BASED IMPLANT MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2013/159500
Kind Code:
A1
Abstract:
Disclosed are a micro-arc oxidized, self-closing-pore, active coating of a magnesium-based implant material and a preparation method therefor. Most of the pores formed in the coating by micro-arc oxidation discharge are directly filled by substances containing calcium and phosphorous. The coating has a high density, and both the porous structure formed by discharge and the filling compounds in the pores have identical chemical components. The atomic content percentages of calcium and phosphorous elements contained at the surface respectively reaches 3%-6% and 9%-15%, and the elements of calcium, phosphorous and fluorine contained in the coating can improve the biological activity of the coating. The method can be used as surface treatment for various magnesium-implant materials.
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Inventors:
LI YANGDE (CN)
Application Number:
PCT/CN2012/083752
Publication Date:
October 31, 2013
Filing Date:
October 30, 2012
Export Citation:
Assignee:
LI YANGDE (CN)
International Classes:
A61L27/04; A61L27/32; C25D11/30
Foreign References:
| CN102220620A | 2011-10-19 | |||
| CN102304745A | 2012-01-04 | |||
| CN101632842A | 2010-01-27 | |||
| FR2877018A1 | 2006-04-28 |
Other References:
LI, ZHI: "Research progress of biomedical ceramic coatings obtained by micro-arc oxidation on the surface of magnesium-based materials", ELECTROPLATING & FINISHING, vol. 30, no. 6, June 2011 (2011-06-01), pages 29 - 33
Attorney, Agent or Firm:
DONG GUAN KEON INTELLECTUAL PROPERTY AGENCY FIRM (CN)
东莞市科安知识产权代理事务所 (CN)
东莞市科安知识产权代理事务所 (CN)
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