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Surface treatment process of bioactive metallic titanium implant having multistage micro-pit structure

A biological activity and surface treatment technology, applied in metal material coating technology, ion implantation plating, coating, etc., can solve the problems of high cost, inability to realize large-scale production, long bone healing cycle, complicated process, etc., to achieve Shorter surgical healing time, faster healing speed, and high bonding strength

Inactive Publication Date: 2013-12-18
JIANGSU TRAUSIM MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of the metal titanium implants treated by them has the disadvantages of hydrophilicity, poor biological activity, and long bone healing period.
These cannot meet the above three conditions at the same time or have the disadvantages of complicated process, long production cycle, high cost and unable to realize large-scale production.

Method used

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  • Surface treatment process of bioactive metallic titanium implant having multistage micro-pit structure
  • Surface treatment process of bioactive metallic titanium implant having multistage micro-pit structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0024] In this example, the steps of machining a cylindrical threaded titanium implant are:

[0025] a. Pretreatment: provide a metal titanium implant that has been machined and finely ground, and use acetone, absolute ethanol, and purified water to perform ultrasonic cleaning and degreasing treatment on the surface of the metal titanium implant twice each, Five minutes at a time; to clean and degrease, then dry.

[0026] b. Sandblasting treatment: Use 24-70 mesh white corundum to perform sandblasting treatment on the surface of the pretreated titanium metal implant. The axial direction of the spray gun metal titanium implant is 45°. 0.5Mpa, the spray distance is 10cm, sandblasting until the surface of metal titanium implants is uniform gray, so that the surface of metal titanium implants forms a porous three-dimensional structure, the roughness Ra is 3μm; the diameter of the pits of the porous structure is 10-40μm First-level pits, and perform pure hydration ultrasonic clean...

Embodiment 2）

[0031] In this example, the steps of machining a cylindrical threaded titanium implant are:

[0032] a. Pretreatment: provide a metal titanium implant that has been machined and finely ground, and use acetone, absolute ethanol, and purified water to perform ultrasonic cleaning and degreasing treatment on the surface of the metal titanium implant twice each, Five minutes at a time; to clean and degrease, then dry.

[0033] b. Sandblasting treatment: Use 24-70 mesh white corundum to perform sandblasting treatment on the surface of the pretreated titanium metal implant. The axial direction of the spray gun metal titanium implant is 45°. 0.5Mpa, the spray distance is 10cm, sandblasting until the surface of metal titanium implants is uniform gray, so that the surface of metal titanium implants forms a porous three-dimensional structure, the roughness Ra is 3μm; the diameter of the pits of the porous structure is 10-40μm First-level pits, and perform pure hydration ultrasonic clean...

Embodiment 3）

[0038] In this example, the steps of machining a cylindrical threaded titanium implant are:

[0039] a. Pretreatment: provide a metal titanium implant that has been machined and finely ground, and use acetone, absolute ethanol, and purified water to perform ultrasonic cleaning and degreasing treatment on the surface of the metal titanium implant twice each, Five minutes at a time; to clean and degrease, then dry.

[0040]b. Sandblasting treatment: Use 24-70 mesh white corundum to perform sandblasting treatment on the surface of the pretreated titanium metal implant. It is 0.4Mpa, the spray distance is 8cm, sandblasting until the surface of the metal titanium implant is uniform gray, so that the surface of the metal titanium implant forms a porous three-dimensional structure, the roughness Ra is 4μm; the diameter of the pit of the porous structure is 10-40μm First-level pits, and perform pure hydration ultrasonic cleaning and drying;

[0041] c. Acid etching treatment: soak t...

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Abstract

The invention relates to a surface treatment process of a bioactive metallic titanium implant having a multistage micro-pit structure, and the surface treatment process comprises the following steps: pretreatment, sandblasting treatment, acid etching treatment, sputtering treatment and glow discharge treatment; according to the surface treatment process, a multistage micro-pit three-dimensional structure having a bioactive tantalum coating is formed on the surface of the metallic titanium implant, so that the binding strength between the tantalum coating and the metallic titanium implant is very good, the tantalum coating is not easy to shed, shedding of the tantalum coating during or after an implantation process is avoided, the biological activity of the metal titanium implant can be improved, bone deposition of the surface of the metal titanium implant is accelerated, the tissue healing time is shortened, and through the formation of synostosis between the metal titanium implant and a surrounding bone tissue, the effect of improvement of the stability of the metal titanium implant can be achieved.

Description

technical field [0001] The invention relates to a surface treatment process of a metal titanium implant, in particular to a surface treatment process of a bioactive tantalum-coated metal titanium implant with a multi-level micropit structure. Background technique [0002] Titanium and titanium alloy materials have been used in human implants for more than 30 years, and are now the most important materials for orthopedic implants and dental implants. Titanium and titanium alloys are used as implant materials, especially permanent implant materials such as: artificial joints, artificial intervertebral discs, dental metal titanium implants, etc., which must directly interact with human tissue and the surface of metal titanium implants to make them The implant fuses with the surrounding tissue and forms a good osseointegration. With the development of biomedical engineering and surface treatment technology, the surface modification of titanium and titanium alloys through variou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/16C23C14/34C23C14/02C23C14/58A61L27/30
Inventor 罗志聪葛振东姜培齐赖红昌
Owner JIANGSU TRAUSIM MEDICAL INSTR
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