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Medical magnesium-based alloy material and preparation method thereof

A magnesium-based alloy and alloy technology, applied in the fields of medical science, coating, prosthesis, etc., can solve the problems of unsatisfactory strength and biocompatibility of magnesium-based alloy materials, avoid surface cracking, high affinity Harmony, the effect of increasing the amount of contact

Inactive Publication Date: 2020-01-03
长沙凯泽工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The corrosion resistance of the alloy material prepared by the invention is greatly improved, and the degradation rate is moderate, which can match the healing speed of the loss site. At the same time, the alloy material also maintains good mechanical properties, and has good biocompatibility, no cytotoxicity, and is safe to use , but the strength and biocompatibility of the magnesium-based alloy material prepared by the invention are not satisfactory

Method used

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  • Medical magnesium-based alloy material and preparation method thereof
  • Medical magnesium-based alloy material and preparation method thereof

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Effect test

Embodiment 1

[0025] A medical magnesium-based alloy material, the medical magnesium-based alloy material includes an alloy matrix and a biological coating; the alloy matrix includes the following components by weight percentage: Cu 2.7%, Fe 0.9%, Sb 1.4%, Ta 0.6% , Ca 2.2%, V0.9%, Mo 0.3%, Ag1.3%, P 2.7%, Si 0.5%, F 0.03%, S 0.2%, nano-hydroxyapatite 5.8%, and the balance is Mg; The surface of the alloy matrix is ​​polished to smooth the rough surface caused by nano-hydroxyapatite floating on the surface of the alloy matrix, and the thickness of the grinding is 1-3um; the main material of the biological coating is collagen fibers and several Buty. The ratio of collagen fibers and chitin in the biological coating is 2:1. The F is added by adding AgF.

[0026] The preparation method of the above-mentioned medical magnesium-based alloy material comprises the following steps: (1) weighing each component according to the above-mentioned mass percentage; (2) under a protective atmosphere, the pr...

Embodiment 2

[0028] A medical magnesium-based alloy material, the medical magnesium-based alloy material includes an alloy matrix and a biological coating; the alloy matrix includes the following components by weight percentage: Cu 2.2%, Fe 1.2%, Sb 1.2%, Ta 0.8% , Ca 1.2%, V1.2%, Mo 0.2%, Ag1.4%, P 2.2%, Si 0.7%, F 0.02%, S 0.3%, nano-hydroxyapatite 5.2%, and the balance is Mg; The surface of the alloy matrix is ​​polished to smooth the rough surface caused by nano-hydroxyapatite floating on the surface of the alloy matrix, and the thickness of the grinding is 1-3um; the main material of the biological coating is collagen fibers and several Buty. The ratio of collagen fibers and chitin in the biological coating is 2:1. The F is added by adding AgF.

[0029] The preparation method of the above-mentioned medical magnesium-based alloy material comprises the following steps: (1) weighing each component according to the above-mentioned mass percentage; (2) under a protective atmosphere, the ...

Embodiment 3

[0031] A medical magnesium-based alloy material, the medical magnesium-based alloy material includes an alloy matrix and a biological coating; the alloy matrix includes the following components by weight percentage: Cu 3.2%, Fe 0.6%, Sb 1.6%, Ta 0.4% , Ca 3.2%, V0.6%, Mo 0.4%, Ag1.2%, P 3.2%, Si 0.3%, F0.04%, S 0.1%, nano-hydroxyapatite 6.4%, and the balance is Mg; The surface of the alloy matrix is ​​polished to smooth the rough surface caused by nano-hydroxyapatite floating on the surface of the alloy matrix, and the thickness of the grinding is 1-3um; the main material of the biological coating is collagen fibers and Chitin. The ratio of collagen fibers and chitin in the biological coating is 2:1. The F is added by adding AgF.

[0032] The preparation method of the above-mentioned medical magnesium-based alloy material comprises the following steps: (1) weighing each component according to the above-mentioned mass percentage; (2) under a protective atmosphere, the protect...

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Abstract

The invention discloses a medical magnesium-based alloy material and a preparation method thereof. The medical magnesium-based alloy material comprises an alloy matrix and a biological coating. The alloy matrix comprises the following components in percentage by weight: 2.2-3.2% of Cu, 0.6-1.2% of Fe, 1.2-1.6% of Sb, 0.4-0.8% of Ta, 1.2-3.2% of Ca, 0.6-1.2% of V, 0.2-0.4% of Mo, 1.2-1.4% of Ag, 2.2-3.2% of P, 0.3-0.7% of Si, 0.02-0.04% of F, 0.1-0.3% of S, 5.2-6.4% of nano-hydroxyapatite, and the balance of Mg. The surface of the alloy matrix is polished to smooth the unsmooth surface caused by the nano-hydroxyapatite floating on the surface layer of the alloy matrix, and the polishing thickness is 1-3 [mu]m. The main materials of the biological coating are collagenous fibers and chitin. According to the invention, metal elements Cu, Fe and Sb are added, inorganic elements P, Si, F and S are jointly added, the nano-hydroxyapatite is added, the surface is polished, and then the surfaceis coated with the biological coating, so that the strength and biocompatibility of the alloy material are improved.

Description

technical field [0001] The invention belongs to the technical field of medical metal materials, and in particular relates to a medical magnesium-based alloy material and a preparation method thereof. Background technique [0002] Magnesium and magnesium alloys are biodegradable and are one of the ideal metal materials for bone tissue repair and replacement. Compared with commonly used medical metal materials, magnesium alloy has higher specific strength and specific stiffness, its density is basically equivalent to that of human bone, and its elastic modulus is about 45GPa, which is closer to that of human bone. Magnesium is also the fourth largest mineral element in the human body after calcium, sodium and potassium, and one of the elements necessary to participate in human metabolism. It can activate various enzymes in the body, inhibit abnormal nerve excitability, and maintain the stability of nucleic acid structure Sex, participate in the synthesis of protein in the bod...

Claims

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Application Information

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IPC IPC(8): A61L27/04A61L27/12A61L27/34C22C23/00C22C32/00C22C1/10
CPCA61L27/047A61L27/12A61L27/34C22C23/00C22C32/0089C22C1/1036A61L2420/02A61L2430/02C22C1/1047
Inventor 不公告发明人
Owner 长沙凯泽工程设计有限公司
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