Artificial joint with micro-nano graded topological surface structure and preparation method of artificial joint

A technology of artificial joints and surface structures, applied in joint implants, joint implants, surface reactive electrolytic coatings, etc., can solve problems that have not been reported before, and achieve the promotion of deposition growth, increase of contact area, and improvement of antibacterial properties Effect

Active Publication Date: 2012-10-17
苏州晶俊新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no related studies have been reported so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) First choose medical Ti6Al4V to process the artificial joint;

[0036](2) Artificial joint pretreatment: use the metallographic sandpaper of 600#, 800#, 1000#, 1200# to polish the artificial joint step by step from coarse sand to fine sand, and then ultrasonically clean it with acetone, alcohol and distilled water , dry and set aside.

[0037] (3) Electrolyte configuration: Use sodium carbonate solution system, configure 10L sodium carbonate solution with a concentration of 20g / L and potassium hydroxide solution with a concentration of 1g / L, stir and dissolve at a constant temperature of 40°C, and set aside;

[0038] (4) Micro-arc oxidation of artificial joints: place the artificial joints in the electrolytic cell of the bipolar pulse micro-arc oxidation equipment and add the prepared electrolyte, use the artificial joints as the anode and the stainless steel electrolytic cell as the cathode, adjust the process parameters to Artificial joints undergo micro-arc oxid...

Embodiment 2

[0042] (1) First choose Ti6Al4V alloy to process the artificial joint;

[0043] (2) Artificial joint pretreatment: use the metallographic sandpaper of 600#, 800#, 1000#, 1200# to polish the artificial joint step by step from coarse sand to fine sand, and then ultrasonically clean it with acetone, alcohol and distilled water , dry and set aside.

[0044] (3) Electrolyte configuration: Use sodium carbonate solution system, configure 10L sodium carbonate solution with a concentration of 20g / L and potassium hydroxide solution with a concentration of 1g / L, stir and dissolve at a constant temperature of 40°C, and set aside;

[0045] (4) Micro-arc oxidation of artificial joints: place the artificial joints in the electrolytic cell of the bipolar pulse micro-arc oxidation equipment and add the prepared electrolyte, use the artificial joints as the anode and the stainless steel electrolytic cell as the cathode, adjust the process parameters to Artificial joints undergo micro-arc oxida...

Embodiment 3

[0049] (1) First choose medical Ti6Al4V to process the artificial joint;

[0050] (2) Artificial joint pretreatment: use the metallographic sandpaper of 600#, 800#, 1000#, 1200# to polish the artificial joint step by step from coarse sand to fine sand, and then ultrasonically clean it with acetone, alcohol and distilled water , dry and set aside.

[0051] (3) Electrolyte configuration: Use sodium carbonate solution system, configure 10L sodium carbonate solution with a concentration of 20g / L and potassium hydroxide solution with a concentration of 1g / L, stir and dissolve at a constant temperature of 40°C, and set aside;

[0052] (4) Micro-arc oxidation of artificial joints: place the artificial joints in the electrolytic cell of the bipolar pulse micro-arc oxidation equipment and add the prepared electrolyte, use the artificial joints as the anode and the stainless steel electrolytic cell as the cathode, adjust the process parameters to Artificial joints undergo micro-arc oxi...

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PUM

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Abstract

The invention provides an artificial joint with a micro-nano graded topological surface structure and a preparation method of the artificial joint. The artificial joint is formed by compounding a titanium alloy substrate, a micro-porous titanium dioxide surface layer prepared by a micro-arc oxidization method, and a zinc oxide nano rod or a nano taper deposited and grown on the hole wall of the surface, namely the micro-porous titanium dioxide biological activity surface layer is obtained on the surface of an artificial joint titanium substrate through the micro-arc oxidization method; and furthermore, electric depositing parameters are adjusted and a zinc oxide nano rod/taper is deposited and prepared on the titanium dioxide biological activity surface layer, so as to form the artificial joint with the micro-nano graded topological surface structure. The artificial joint can utilize abundant titanium dioxide micron hole structures on the surface and a zinc oxide nano topological structure deposited and grown in the hole wall to enhance the biological effects of adhesion, growth, multiplication and the like of surface osteoblast, and realize the slow release of the element zinc; and therefore, the antibacterial capability, the biological activity, the biocompatibility and the cell regulating and controlling capability of the surface at an implantation initial stage are greatly improved.

Description

technical field [0001] The invention relates to an artificial joint with a micro-nano hierarchical topological surface structure and a preparation method thereof. The artificial joint is composed of a titanium alloy substrate, a porous titanium dioxide surface layer prepared by a micro-arc oxidation method, and zinc oxide nanoparticles deposited and grown on the surface pore wall. It is composed of rods or nano cones and belongs to the field of human hard tissue substitute materials. Background technique [0002] Artificial joints can restore joint necrosis and missing functions, which allows patients with joint hard tissue damage that cannot be repaired by traditional methods to receive fundamental treatment and improve their quality of life. The commonly used artificial hard tissue replacement materials are metal materials, because they are biologically inert materials and cannot form a firm physiological bond with bone tissue. After implantation, they often loosen, result...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/04C25D11/26C25D9/08A61L27/06A61L27/30A61F2/30
CPCA61F2/30767A61F2002/30001
Inventor 储成林孙青刘政红林萍华
Owner 苏州晶俊新材料科技有限公司
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