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Medical degradable Zn-Cu-X alloy material and preparation method thereof

An alloy material, zn-cu-x technology, which is applied in the field of medical degradable Zn-Cu-X alloy material and its preparation, can solve the problems that the strength and plasticity cannot meet the requirements of implantation, and the mechanical properties of pure zinc are poor. , to achieve the effect of improving mechanical properties and biocompatibility, enhancing immunity, and promoting cell renewal

Inactive Publication Date: 2017-05-24
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of pure zinc are poor, and neither the strength nor the plasticity can meet the requirements of implantation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, a degradable medical Zn-Cu-X alloy material is designed. The alloy material includes the following alloy components in weight percentage: Cu is 3%, Mg is 0.5%, and the rest is Zn.

[0033] This embodiment also relates to the preparation method of the aforementioned degradable medical Zn-Cu-X alloy material. The preparation method includes the following steps:

[0034] Proportioning of alloy raw materials regardless of the burning loss of alloy elements during the smelting process, using resistance melting, heating and melting pure Zn (purity greater than 99.994%) in a crucible, when the melt temperature rises to 550°C, add H62 brass (Cu-38wt.% Zn master alloy), after the H62 is completely melted, add pure Mg (purity greater than 99.99%) at 500 ° C, then moderately stir the alloy melt and refine it with hexachloroethane, and let it stand Pouring after 10-15 minutes. After the temperature drops below 200°C, the mold is opened, and the sample is taken ou...

Embodiment 2

[0037] In this embodiment, a degradable medical Zn-Cu-X alloy material is designed. The alloy material includes the following alloy components in weight percentage: Cu is 6%, Gd is 0.1%, and the rest is Zn.

[0038] This embodiment also relates to the preparation method of the aforementioned degradable medical Zn-Cu-X alloy material. The preparation method includes the following steps:

[0039] Proportioning of alloy raw materials regardless of the burning loss of alloy elements during the smelting process, using resistance melting, heating and melting pure Zn (purity greater than 99.994%) in a crucible, when the melt temperature rises to 550°C, add H62 brass (Cu-38wt.%Zn master alloy), after the H62 is completely melted, then add the Zn-30%Gd master alloy, and after the master alloy is completely melted, moderately stir the alloy melt and use hexachloroethane to carry out Refining and pouring after standing for 10-15 minutes. After the temperature drops below 200°C, the mold...

Embodiment 3

[0042] In this embodiment, a degradable medical Zn-Cu-X alloy material is designed. The alloy material includes the following alloy components in weight percentages: Cu is 2%, Mg is 0.6%, Gd is 0.03%, and the rest is Zn.

[0043] This embodiment also relates to the preparation method of the aforementioned degradable medical Zn-Cu-X alloy material. The preparation method includes the following steps:

[0044] Proportioning of alloy raw materials is carried out regardless of the burning loss of alloy elements during the smelting process. The method of resistance melting is used to heat and melt pure Zn (purity greater than 99.994%) in a crucible. When the melt temperature rises to 550°C, add H62 yellow Copper (Cu-38wt.% Zn master alloy) and Zn-30% Gd master alloy, after the above two master alloys are completely melted, add pure Mg (purity greater than 99.99%) at 500 ° C, and then melt the alloy The body is moderately stirred and refined with hexachloroethane, and poured after s...

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Abstract

The invention discloses a medical degradable Zn-Cu-X alloy material and a preparation method thereof. The alloy material includes the following components in percentage by weight: 1-10% of Cu, 0-4% of X and the balance Zn, wherein the element X is one of Mg, Ca, Sr, Si, Fe, Mn, Ag, Y, Nd, Gd, Er, Ho and Dy or is a mixture of more of Mg, Ca, Sr, Si, Fe, Mn, Ag, Y, Nd, Gd, Er, Ho and Dy. The invention further relates to the preparation method of the alloy material. The alloy material provided by the invention is a multi-element degradable Zn-based alloy material composed of the human nutrient elements Zn, Cu and X, which completely have biosecurity, has favorable biocompatibility, excellent mechanical properties and an adjustable and controllable corrosion rate, and has a favorable application prospect in the field of medical degradable inner implantation material.

Description

technical field [0001] The invention relates to a Zn-based alloy material in the field of biomedical materials that can be completely degraded in vivo, and specifically relates to a medically degradable Zn-Cu-X alloy material and a preparation method thereof. Background technique [0002] At present, non-degradable metal materials are generally used for medical materials surgically implanted into the human body, such as austenitic stainless steel, cobalt-chromium alloy, medical tantalum, titanium and its alloys, nickel-titanium shape memory alloy, and platinum-iridium alloy. The application of these permanent implant materials has certain disadvantages clinically. Therefore, biodegradable absorbent materials in vivo have become an important direction for the development of biomaterials. Currently, biodegradable absorbent materials in clinical applications are mainly polymers and certain ceramic materials, such as polylactic acid and calcium phosphate. However, due to the lo...

Claims

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Application Information

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IPC IPC(8): C22C18/02C22C18/00C22F1/16A61L27/04A61L27/58A61L27/54A61L31/02A61L31/16A61L31/14
CPCA61L31/02C22C18/00C22C18/02
Inventor 黄华袁广银丁文江
Owner SHANGHAI JIAO TONG UNIV
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