Method for preparing multistage micron structure on titanium implant surface

A technology of titanium implants and micron structures, which is applied in the field of preparing multi-level micron active surfaces, can solve problems such as health damage of operators, corrosion of workshops and equipment, environmental pollution, etc., to improve the environment of production operations, with little environmental pollution, The effect of excellent hydrophilicity

Active Publication Date: 2013-02-13
百齿泰(厦门)医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the concentrations of hydrochloric acid and sulfuric acid used are relatively large, which will inevitably cause a large amount of volatilization of hydrochloric acid at higher temperatures, causing environmental pollution. At the same time, the cost of double acid etching is complicated and expensive.
Chinese patent CN200910248898.3 discloses "a method for preparing a porous structure on the surface of a pure titanium dental implant". The temperature is 40-70°C, the temperature is not high so that the

Method used

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  • Method for preparing multistage micron structure on titanium implant surface
  • Method for preparing multistage micron structure on titanium implant surface
  • Method for preparing multistage micron structure on titanium implant surface

Examples

Experimental program
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Effect test

Embodiment 1

[0044] (1) Grind the surface of the titanium implant with sandpaper or a grinding wheel, and then ultrasonically clean the polished titanium implant in acetone, ethanol, and deionized water for 10 minutes;

[0045] (2) After cleaning, titanium implants with a mass fraction of 10% HN0 3 , 2%HF, 1%H 2 o 2 in aqueous solution, pickling for 2min;

[0046] (3) After pickling, the surface of the titanium implant was sandblasted with a 1:1 mixture of 80 mesh and 180 mesh ceramic sand in a sandblasting machine with a pressure of 5 bar and a distance of 0.5 cm;

[0047] (4) For titanium implants after sandblasting, ultrasonically clean them with acetone, ethanol, and deionized water for 10 minutes;

[0048] (5) Place the sample after sandblasting cleaning in a solution containing 15% H 2 SO 4 , 8%HCl, 1%HNO 3 , 0.2% ethylene glycol, 0.2g / L perfluorooctane sulfonate potassium, and the rest in deionized water solution, the acid etching temperature is 50°C, and the acid etching time...

Embodiment 2

[0052] (1) Polish the surface of the titanium implant with sandpaper or a grinding wheel, and then ultrasonically clean the polished titanium implant for 12 minutes in acetone, ethanol, and deionized water;

[0053] (2) After cleaning, the titanium implant was placed in the 3 , 2%HF, 1%H 2 o 2 in aqueous solution, pickling for 2min;

[0054] (3) After pickling, the surface of the implant was sandblasted by mixing 90 mesh and 150 mesh ceramic sand 2:1 in a sandblasting machine at a pressure of 6 bar and a distance of 0.5 cm;

[0055] (4) For titanium implants after sandblasting, ultrasonically clean them again in acetone, ethanol, and deionized water for 12 minutes;

[0056] (5) Put the sample after sandblasting cleaning in the 2 SO 4 , 6%HCl, 2%HNO 3 , 1% ethylene glycol, 0.03g / L perfluorooctane sulfonate potassium, and the rest in a solution of deionized water, the acid etching temperature is 60°C, and the acid etching time is controlled at 50 minutes;

[0057] (6) Aft...

Embodiment 3

[0059] (1) Grind the surface of titanium implants with sandpaper or grinding wheel, and then ultrasonically clean the polished titanium implants in acetone, ethanol, and deionized water for 15 minutes respectively;

[0060] (2) After cleaning, titanium implants with a mass fraction of 15% HN0 3 , 3%HF, 2%H 2 o 2 in aqueous solution, pickling for 1min;

[0061] (3) After pickling, the surface of the titanium implant was sandblasted with a 1:1 mixture of 100 mesh and 160 mesh ceramic sand in a sandblasting machine at a pressure of 7 bar and a distance of 1 cm;

[0062] (4) For titanium implants after sandblasting, ultrasonically clean them again in acetone, ethanol, and deionized water for 15 minutes;

[0063] (5) Put the sample after sandblasting cleaning in the mass fraction of 25%H 2 SO 4 , 5%HCl, 3%HNO 3 , 2% ethylene glycol, 0.05g / L perfluorooctane sulfonate potassium, and the rest in deionized water solution, the acid etching temperature is 60°C, and the acid etching...

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Abstract

The invention discloses a method for preparing a multistage micron structure on a titanium implant surface and relates to a titanium implant. The method includes polishing the titanium implant surface, performing oil removing treatment, and cleaning; subjecting the titanium implant which is subjected to the oil treatment and cleaning to acid dipping treatment in a mixed solution containing a nitric acid, a hydrofluoric acid and hydrogen peroxide; subjecting the titanium implant surface to sand blasting treatment; cleaning the titanium implant which is subjected to the sand blasting treatment; subjecting the cleaned titanium implant to acid etching post-treatment in an acid etching solution; and subjecting the titanium implant to heat treatment and cooling the titanium implant to the normal temperature to obtain the titanium implant with the surface in the multistage micron structure. According to the method for preparing the multistage micron structure on the titanium implant surface, the contact area between the titanium implant and bone tissues is increased, osteoblast ingrowth is facilitated, and thereby the forming of bone closure is facilitated; processing devices are easy to obtain, the operation process is simple, the environmental pollution is small, and the industrialization is easy to achieve; and the appearance is abundant, and the hydrophilic performance is excellent.

Description

technical field [0001] The invention relates to a titanium implant, in particular to a method for preparing a multi-level micron active surface on the surface of the titanium implant. Background technique [0002] Titanium and its alloys have good mechanical properties, such as high strength, low elastic modulus, and the elastic modulus is close to bone, which can effectively inhibit stress shielding and avoid local bone resorption. At the same time, the surface has good chemical stability and Biocompatibility makes it widely used in plastic surgery, dentistry and other fields, such as artificial bone, artificial joint, bone nail, dental titanium implant, etc. Clinical studies have shown that surface topography and composition play a crucial role in the short-term loading and long-term stability of titanium implants after implantation in the human body. At present, commercialized products in the domestic and foreign markets, such as Nobel Replace, can obtain a volcanic poro...

Claims

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Application Information

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IPC IPC(8): A61L27/06A61L27/50B24C1/00C23F1/26C23F17/00
Inventor 王周成陈彦文林志雄
Owner 百齿泰(厦门)医疗科技有限公司
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