Magnesium-containing hydroxyapatite coating on surface of medical material and preparation method of coating

A magnesium-containing hydroxyapatite and coating technology, applied in the fields of coating, medical science, prosthesis, etc., can solve the problems of long implantation and fixation period, and achieve the goal of regulating growth, regulating remodeling, and inducing bone tissue regeneration. Effect

Inactive Publication Date: 2014-07-16
倪昕晔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It cannot produce chemical bonds with the human body, and the implantation and fixation period is longer, which is also one of the key factors affecting carbon / carbon composite materials as bone replacement and repair materials

Method used

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  • Magnesium-containing hydroxyapatite coating on surface of medical material and preparation method of coating
  • Magnesium-containing hydroxyapatite coating on surface of medical material and preparation method of coating
  • Magnesium-containing hydroxyapatite coating on surface of medical material and preparation method of coating

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Experimental program
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Effect test

Embodiment 1

[0031] Add 30% hydrogen peroxide to the hydrothermal kettle to make the density 1.3g / cm 3 The medical carbon / carbon composite material was placed in a hydrothermal kettle for hydrothermal treatment. The hydrothermal treatment temperature was 85°C, the treatment time was 4h, cooled naturally, washed with deionized water and dried; 0.16mol / L calcium nitrate, 0.02mol / L L magnesium nitrate and 0.1mol / L ammonium dihydrogen phosphate are prepared as a mixed solution, and the medical carbon / carbon composite material after hydrothermal treatment is placed in the mixed solution, and a magnesium-doped apatite coating is prepared on its surface by electromagnetic induction , the electromagnetic induction oscillation frequency is 1.1MHz, the oscillation current is 200A, the deposition time is 10min, and is cleaned with deionized water; the magnesium-doped apatite coating is placed in a hydrothermal kettle containing 0.1% ammonia water for hydrothermal treatment. The heat treatment tempera...

Embodiment 2

[0033] Add 30% hydrogen peroxide to the hydrothermal kettle to make the density 1.8g / cm 3 The medical carbon / carbon composite material was placed in a hydrothermal kettle for hydrothermal treatment. The hydrothermal treatment temperature was 145°C, and the treatment time was 24h. It was cooled naturally, washed with deionized water and dried; 0.16mol / L calcium nitrate, 0.1mol / L magnesium nitrate and 0.1mol / L ammonium dihydrogen phosphate are prepared as a mixed solution, and the medical carbon / carbon composite material after hydrothermal treatment is placed in the mixed solution, and a magnesium-doped apatite coating is prepared on its surface by electromagnetic induction , the electromagnetic induction oscillation frequency is 1.1MHz, the oscillation current is 700A, the deposition time is 8h, and cleaned with deionized water; the magnesium-doped apatite coating is placed in a hydrothermal kettle containing 2% ammonia water for hydrothermal treatment, and the water The heat ...

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Abstract

The invention relates to a magnesium-containing hydroxyapatite coating on the surface of a medical material. The coating comprises Ca10(PO4)6(OH)2 and Mg10(PO4)6(OH)2, wherein the Mg10(PO4)6(OH)2 accounts for 0-10% of the total mass of the coating. The preparation method of the magnesium-containing hydroxyapatite coating on the surface of the medical material comprises the following steps: a, hydro-thermal treatment; b, magnesium doping treatment; and c, hydro-thermal treatment. The preparation method of the magnesium-containing hydroxyapatite coating on the surface of the medical material is simple and easy to operate, and the magnesium-containing hydroxyapatite coating on the surface of the medical material has the functions of inducing bone tissue regeneration, and regulating osseous growth and remodeling.

Description

technical field [0001] The invention relates to a magnesium-containing hydroxyapatite coating on the surface of medical materials and a preparation method thereof. Background technique [0002] Carbon is one of the main elements that make up organic matter, and it is an important element that makes up the human body. Carbon materials have been applied and developed in many artificial materials such as heart valves, bones, tooth roots, blood vessels, and tendons. Carbon / carbon composites overcome the brittleness of single carbon materials, and have the advantages of high strength, high toughness, corrosion resistance, and high temperature resistance. Carbon / carbon composite material is a new type of composite material with carbon fiber reinforced carbon matrix. Its elastic modulus is equivalent to that of human bone and has good biomechanical compatibility. [0003] The surface of untreated carbon / carbon composites is hydrophobic, which is a biologically inert material and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/32A61L27/54
Inventor 倪昕晔熊信柏李爱军白瑞成
Owner 倪昕晔
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