A kind of medical zinc alloy material and preparation method thereof

A zinc alloy and metal material technology, applied in medical science, prosthesis, etc., can solve the problem of difficulty in taking into account strength, degradation rate, and no side effects of degradants, and achieve the effect of both strength and degradation rate.

Active Publication Date: 2022-05-13
SHIJIAZHUANG XINRI ZINC IND
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Problems solved by technology

[0005] The purpose of the present invention is to provide a medical zinc alloy material, which aims to solve the problem that it is difficult to meet the multi-faceted requirements of strength, degradation rate and no side effects of degradation products after using zinc alloy to make a stent

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  • A kind of medical zinc alloy material and preparation method thereof

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Embodiment approach

[0027]As a specific embodiment of the medical zinc alloy material provided by the present invention, the chemical composition of the medical zinc alloy material includes 0wt%-1.0wt% Fe, 0.1wt%-1.0wt% Ca, 0wt%-1.0wt% Li and the rest Zn. In this embodiment, the medical zinc alloy stent differs in its internal composition depending on its application part. When preparing arterial stents and vascular stents, light alloys can be used as the main choice, and the content of Fe can be reduced to below 1%. Fe can also be used as the alloy material, and a small amount of Ca and Li can be added mainly to Zn. Ca and Li are both Degradable material, and the degradation rate is fast. Ca is an important component of the human body, containing 10 milligrams (mg) of calcium per 1000 cc of blood. Among the 10 milligrams (mg) of calcium, there are 4 milligrams (mg) of "ionized calcium" that exists independently, and 6 milligrams (mg) of "compound calcium" combined with serum protein. The cont...

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Abstract

The invention provides a medical zinc alloy material and a preparation method, belonging to the technical field of alloy material forming, comprising chemical components including 0wt%-10wt% Fe, 0.1wt%-1.0wt% Ca, 0wt%-1.0 wt% Li and the rest Zn. The present invention provides a medical zinc alloy material and its preparation method. Zn, Fe, Ca and Li are all degradable elements, and are beneficial and harmless to the human body. By adjusting the composition of the Fe element in the alloy, the strength and degradation of the alloy are controlled. The speed can achieve the balance between the strength and degradation rate of the medical zinc alloy, so as to meet the different functions of medical use.

Description

technical field [0001] The invention belongs to the technical field of alloy material forming, and more specifically relates to a medical zinc alloy material and a preparation method thereof. Background technique [0002] With the accelerated evolution of my country's population aging, coronary heart disease has become a common disease that affects the health of our people. Due to the small trauma and remarkable therapeutic effect during the treatment process, percutaneous coronary stent implantation (PCI) using minimally invasive surgery has gradually replaced traditional bypass surgery and has become the first choice for the treatment of coronary heart disease. In 2015, the number of PCI operations reached 550,000. As a high-value medical consumable, the domestic market continues to grow rapidly. [0003] Traditional coronary artery stents are made of medical-grade stainless steel (316L) or cobalt-chromium alloy, which is stable and does not degrade after being implanted ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C18/00C22F1/16A61L27/04
CPCC22C18/00C22F1/165A61L27/047
Inventor 李川张科聂校亮
Owner SHIJIAZHUANG XINRI ZINC IND
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