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Method for preparing surface microporous titanium of titanium-based biological medical material

A biomedical and surface microporous technology, applied in chemical instruments and methods, medical science, titanium compounds, etc., can solve the problems of difficult control of surface microporous titanium pore size, reduced fatigue resistance, high preparation cost, etc., to solve the problem of planting Effects of failure, increased surface area, low raw material cost

Inactive Publication Date: 2007-11-14
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method improves the firmness of the coating, maintains the compatibility of the outer layer tissue, and achieves the purpose of osseointegration, the disadvantage is that its sintering temperature is above 1200 ° C, which exceeds the β transformation temperature of titanium, which is 992 ° C. , so that the microstructure of the titanium material is transformed into a layered α-β structure, its fatigue resistance is greatly reduced, and the requirements for the equipment are high, and its preparation cost is high; while the machining method requires precision machining equipment and operation. Limited by technology; although the sandblasting and shot peening method is simple to operate, it is difficult to control the pore size of the microporous titanium on the surface

Method used

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  • Method for preparing surface microporous titanium of titanium-based biological medical material
  • Method for preparing surface microporous titanium of titanium-based biological medical material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Pretreatment of titanium sample surface

[0023] The titanium matrix is ​​smelted with a non-consumable vacuum arc shell furnace, hot-forged into a long bar, and then cut into samples of the required size with a wire cutting machine, on No.280, No.400, No.600 sandpaper After polishing in sequence, put it in acetone solution and ultrasonically clean it for 10-20 minutes to remove the oil stains and wear debris on the surface, and then corrode the surface of the titanium sample with HF corrosion solution with a volume percentage concentration of 10% until the surface is dark black or gray. Then rinse with distilled water and wipe with absorbent cotton in acetone solution for later use;

[0024] (2) Preparation of potassium titanate whiskers

[0025] Using analytically pure K 2 CO 3 and TiO 2 is the raw material, and the molar ratio is K 2 CO 3 :TiO 2 =1:3~6, mix the two powdery raw materials evenly, put them into a ceramic crucible and put them into a high-temp...

Embodiment 2

[0029] (1) Pretreatment of titanium sample surface

[0030] The titanium matrix is ​​smelted with a non-consumable vacuum arc shell furnace, hot-forged into a long bar, and then cut into samples of the required size with a wire cutting machine, on No.280, No.400, No.600 sandpaper After polishing in sequence, put it into acetone solution and ultrasonically clean it for 10-20 minutes to remove the oil stains and wear debris on the surface, and then corrode the surface of the titanium sample with HF corrosion solution with a concentration of 10% by volume until the surface is dark black or gray. Then rinse with distilled water and wipe with absorbent cotton in acetone solution for later use;

[0031] (2) Preparation of potassium titanate whiskers

[0032] Using analytically pure K 2 CO 3 and TiO 2 is the raw material, and the molar ratio is K 2 CO 3 :TiO 2 =1:3~6, mix the two powdery raw materials evenly, put them into a ceramic crucible and put them into a high-temperatur...

Embodiment 3

[0036] (1) Pretreatment of titanium sample surface

[0037] The titanium matrix is ​​smelted with a non-consumable vacuum arc shell furnace, hot-forged into a long bar, and then cut into samples of the required size with a wire cutting machine, on No.280, No.400, No.600 sandpaper After polishing in sequence, put it in acetone solution and ultrasonically clean it for 10-20 minutes to remove the oil stains and wear debris on the surface, and then corrode the surface of the titanium sample with HF corrosion solution with a volume percentage concentration of 10% until the surface is dark black or gray. Then rinse with distilled water and wipe with absorbent cotton in acetone solution for later use;

[0038] (2) Preparation of potassium titanate whiskers

[0039] Using analytically pure K 2 CO 3 and TiO 2 is the raw material, and the molar ratio is K 2 CO 3 :TiO 2 =1:3~6, mix the two powdery raw materials evenly, put them into a ceramic crucible and put them into a high-temp...

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Abstract

A process for preparing the surficial millipore titanium of the biomedical Ti-based material used for reparing or replacing the bone tissue includes such steps as pretreating the surface of titanium specimen, preparing the crystal whisker of potassium titanate, and inclusion sintering.

Description

technical field [0001] The technical proposal of the present invention relates to the surgical treatment method of bone, in particular to the preparation method of microporous titanium on the surface of the titanium-based biomedical material used for the repair and replacement of bone tissue. Background technique [0002] Metal materials are the preferred biomaterials for bone tissue repair and replacement, while titanium-based biomedical materials have become a research hotspot due to their excellent biocompatibility and mechanical adaptability. However, since the surface of titanium and its alloys is still biologically inert, in order to make the surface biologically active, many methods have been used to modify the surface of titanium substrates to prepare bioactive coatings to meet the requirements of organisms on the mechanical properties of materials and Biological performance requirements for use. It is a very effective method to improve the bonding strength of bioac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/06A61L27/50A61L31/02A61L31/14C01G23/00
Inventor 崔春翔戚玉敏申玉田刘双进王如
Owner HEBEI UNIV OF TECH
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