Medical titanium surface composite coating and preparation method thereof

A medical, titanium-based technology, which is applied in the field of medical titanium materials and its preparation, can solve the problems of unsatisfactory implant surface bioactivity, poor bone regeneration ability of hard tissue implants, and poor bonding of surrounding tissues, so as to prevent and treatment of infection, stable and controllable preparation process, and easy promotion and application

Active Publication Date: 2014-08-27
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

However, long-term clinical studies have found that the reasons for the failure of implants in recent years are mainly concentrated in the following two aspects: ①The biological activity of the implant surface is not ideal, resulting in poor bone regeneration ability (or slow regeneration) of hard tissue implants, Poor integration with surrounding tissues; ②The surface of the implant has no antibacterial properties, resulting in frequent occurrence of implant-related bacterial infections

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  • Medical titanium surface composite coating and preparation method thereof
  • Medical titanium surface composite coating and preparation method thereof
  • Medical titanium surface composite coating and preparation method thereof

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[0034] The present invention relates to a biomedical titanium material method with a bioceramic film layer, and more precisely relates to a densified titanium-based manganese-doped titanium oxide modification with excellent corrosion resistance, antibacterial and osteogenic properties. Sexual layer and its preparation method. The invention belongs to the technical field of biomedical ceramic modified layer. In order to solve the problems of poor antibacterial properties, osteogenic properties and corrosion resistance existing in the existing medical titanium materials, the present invention discloses a medical titanium material and a preparation method thereof, which have multifunctional densified manganese-doped titanium oxide modified The method includes preparing a manganese-containing densified titanium oxide modified layer by using micro-arc oxidation in a specific electrolyte. The corrosion resistance of the titanium metal material modified by the present invention has ...

Embodiment 1

[0068] (a) Use deionized water to mix 1g / L potassium permanganate, 1g / L sodium hydroxide, 2g / L EDTA-Na 2 Mix with 24g / L sodium silicate to prepare electrolyte. (b) With titanium as the anode and stainless steel as the cathode, a DC pulse power supply is used at a constant current density of 20A / dm 2, frequency 800Hz, and duty cycle 10% under the conditions, react until the cut-off voltage is 380V, and keep the electrolyte temperature below 40°C. (c) After the sample was taken out, it was boiled in deionized water for 5 min and dried naturally. After testing, the thickness of the modified layer is about 1 μm, and the element composition is mainly Ti, O, Si, and Mn. X-ray diffraction analysis shows that the phase composition of the modified layer is mainly anatase and a small amount of TiO in the rutile phase. 2 , EDS results show that the content of manganese in the modified layer is about 0.6wt%, and SEM analysis shows that the pore size of the modified layer is less than 5 ...

Embodiment 2

[0076] (a) Using deionized water, mix 16g / L sodium glycerophosphate and 1g / L potassium permanganate to prepare an electrolyte solution. (b) With titanium as the anode and stainless steel as the cathode, a DC pulse power supply is used at a constant current density of 10A / dm 2 , frequency 800Hz, duty cycle 20% under the conditions, the reaction until the cut-off voltage is 410V, keep the electrolyte temperature below 40 ℃. (c) After the sample was taken out, it was boiled in deionized water for 5 min and dried naturally. After testing, the thickness of the modified layer is about 2 μm, and the element composition is mainly Ti, O, P, and Mn. X-ray diffraction analysis shows that the phase composition of the modified layer is mainly anatase TiO 2 and a small amount of rutile TiO 2 , EDS results show that the content of manganese in the modified layer is about 1wt%, and SEM analysis shows that the pore size of the modified layer is less than 10 μm.

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Abstract

The invention relates to a medical titanium surface composite coating and a preparation method thereof. The surface of a medical titanium material is a manganese doped titanium oxide modified layer which is firmly combined with a titanium base material, wherein the manganese doped titanium oxide modified layer is of a dense porous structure obtained by performing micro-arc oxidation treatment on the surface of the base material and consists of anatase titanium oxide, rutile titanium oxide and a manganese element.

Description

technical field [0001] The invention belongs to the technical field of biomedical materials, and in particular relates to a medical titanium material and a preparation method thereof. Background technique [0002] Titanium and its alloys have the advantages of small specific gravity, low elastic modulus, and strong corrosion resistance, so they have become the materials of choice for plastic surgery [Progress in Materials Science2009,54:397-425.]. However, since the implantation of metal materials will cause host rejection, the goal of early material implantation is to cause as little host immune response as possible on the basis of matching the mechanical properties of the replaced tissue. With the development of surface modification layer technology, this problem has been gradually solved through the unremitting efforts of scientific researchers. However, long-term clinical studies have found that the reasons for the failure of implants in recent years are mainly concentr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/06A61L27/30C25D11/26
Inventor 刘宣勇余乐
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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