Preparation method of biologically active nanometer composite layer on medical-use metal surface |
Title： |
| Preparation method of biologically active nanometer composite layer on medical-use metal surface |
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Application Number： |
200510114407 |
Application Date： |
2005/10/24 |
Announcement Date： |
2006/05/10 |
Pub. Date： |
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Publication Number： |
1769527 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
94[China|shenzhen] |
IPC： |
C23C 28/04, A61L 27/32 |
Applicant(s)： |
Research Institute of Tsinghua University in Shenzhen |
Inventor(s)： |
Wang Zhen, Li Rongxian |
Key Words： |
medical-use, metal surface, biologically active, nanometer composite layer, preparation method |
Abstract： |
This invention relates to a biological active nanometer compound layer making method for the medical metal surface, which includes the following steps: putting the medical metal titanium and its alloy radix into the diluent acid liquid to do corrad pretreatment; using the pretreated titanium and its alloy radix as the anode to do anode oxidation to create the compact titanium dioxide nanometer tube film on the surface of the metal; putting them into the alkali lye to do activation treatment, then doing heat treatment with them under 450¡æ¡«650¡æ for 0.5¡«3 hours; Then putting them into the simulate liquid to produce hydroxyl apatite. The charater of this invention is that it provides a method that combines the anode oxidation and alkali heat treatment, and this invention impoves the biological compatibility of the medical metal greatly. |
Claim： |
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Priority： |
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PCT： |
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