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A kind of antibacterial magnesium alloy material and preparation method for short-term birth control ring

A magnesium alloy and antibacterial technology, which is applied in the field of antibacterial magnesium alloy materials and preparation, can solve the problems of increasing medical costs, such as physical pain and mental stress of patients, and achieve fine grain size, reasonable component distribution ratio, and simple process Effect

Inactive Publication Date: 2021-01-08
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For those who are only short-term contraceptives, they will face the trouble of repeatedly taking the ring. Repeatedly taking the ring not only increases the medical cost but also causes great physical pain and mental pressure to the patient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation method: birth control ring magnesium alloy material, its raw material composition and weight percentage content are: 2.0% Zn, 0.4% Mn, 0.5% Ca, 0.3% Sr, the rest is Mg and a chitin coating with a deacetylation degree of 95% . First put pure magnesium into the smelting furnace, when the temperature of the melt rises to about 730°C, add the remaining metal, protect it with a protective atmosphere of argon during the melting process, stir, when the metal is completely melted, let it stand, and pass in argon for refining; Stand still for 20 minutes, heat up to 740°C for casting under the protection of argon, cool, heat treatment at 400°C for 10 hours, and then carry out hot extrusion at 400°C, the extrusion ratio is 20:1 and the extrusion speed is 6.25m / min, and then the magnesium The alloy sample is processed into the desired birth control ring shape, cleaned with acetone, then cleaned with absolute ethanol and distilled water and dried, then immersed in a solu...

Embodiment 2

[0026] Preparation method: birth control ring magnesium alloy material, its raw material composition and weight percentage content: 1.0% Zn, 0.3% Mn, 1.0% Ca, 0.3% Sr, the rest is Mg and medical grade chitin coating. First put pure magnesium into the smelting furnace. When the temperature of the melt rises to about 730°C, the remaining metal will be continuously stirred during the melting process. Lower the temperature to 740°C for casting, cooling, heat treatment at 400°C for 10 hours, and then hot extrusion at 400°C, the extrusion ratio is 20:1 and the extrusion speed is 5.0m / min. Then the magnesium alloy sample is cleaned with acetone, Then wash with absolute ethanol and distilled water and blow dry, then immerse in a solution containing saturated sodium hydroxide or calcium hydroxide and sodium carbonate, wash with distilled water, and blow dry. Heat 20 grams of chitin in 600 ml of 50% sodium hydroxide solution to 90°C and stir for 2 hours, then add 1000 mL of deionized wa...

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Abstract

The invention discloses an antibacterial magnesium alloy material for a short-term contraceptive ring and a preparation method, belongs to the technical field of medicinal alloys, aims to disclose anantibacterial magnesium alloy material for a short-term contraceptive ring and a preparation method and aims to achieve the purpose that the degradation velocity and the degradation time of a contraceptive ring are artificially controlled. The alloy material consists of the following components: 1.0-2.5% of Zn, 0.2-1.0% of Mn, 0.5-2.0% of Ca, 0.1-0.4% Sr and the balance of Mg and antibacterial inflammation elimination medical chitin coating of which the deacetylation degree is 65-95%. By adopting the antibacterial magnesium alloy material, the strength and the ductility of the magnesium alloycan be improved under the action of beneficial elements of calcium, zinc and manganese, crystal grains can be refined through strontium, and the corrosion can be improved. By adopting the chitin coating, the degradation time of the magnesium alloy can be effectively prolonged. Meanwhile, components of the alloy material are reasonably proportioned, the process is simple, alloy components can be adjusted and controlled, and magnesium alloy contraceptive ring materials which can be degraded and absorbed under specific conditions according to chitin deacetylation degrees and coating thicknesses.

Description

technical field [0001] The invention belongs to the technical field of medical alloy materials, and in particular relates to an antibacterial magnesium alloy material used for a short-term birth control ring and a preparation method thereof. Background technique [0002] Family planning is the basic national policy of our country. IUD placement in the uterus is one of the more effective, safe and convenient methods of contraception. It plays an important role in the family planning work of our country. However, placing the IUD for too long may cause certain harm to women's bodies, such as prone to tingling, increased leucorrhea, abnormal menstruation, vaginitis and other side effects. The birth control ring currently on the market is generally made of stainless steel, copper or plastic, silica gel, etc. Therefore, it is one of the problems to be solved at present to develop biocompatible birth control ring materials to reduce the occurrence of gynecological diseases caused ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L31/02A61L31/10A61L31/14A61L31/16
CPCA61L31/022A61L31/10A61L31/148A61L31/16A61L2300/102A61L2300/236A61L2300/404A61L2300/604A61L2300/606C08L5/08
Inventor 罗小萍郭艳萍刘宝胜张跃忠房大庆卫英慧
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY