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Preparation method of novel medical instrument copper alloy having bactericidal and bacteriostatic functions

A technology of medical equipment and copper alloy, which is applied in the direction of chemical instruments and methods, cleaning methods using liquids, metal extrusion control equipment, etc., can solve problems such as low strength and easy discoloration of copper alloys, and achieve improved mechanical strength and increased Corrosion resistance, effect of reducing the amount of bacteria

Active Publication Date: 2019-09-06
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the use of copper and copper alloys to prevent nosocomial infections and build a hygienic environment is highly anticipated around the world. However, the original copper alloys are prone to discoloration and low strength, which has become a major problem in practical application.

Method used

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  • Preparation method of novel medical instrument copper alloy having bactericidal and bacteriostatic functions
  • Preparation method of novel medical instrument copper alloy having bactericidal and bacteriostatic functions
  • Preparation method of novel medical instrument copper alloy having bactericidal and bacteriostatic functions

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A method for preparing a novel copper alloy for medical devices with bactericidal and antibacterial functions, mainly comprising the following steps:

[0030] (1) Ingredients

[0031]Taking by weight percentage is 6% industrial pure iron, 94% electrolytic copper plate, stand-by;

[0032] (2) Melting

[0033] First, add the industrial pure iron in the above weight ratio to the non-vacuum intermediate frequency induction furnace. After the industrial pure iron is melted, then add the electrolytic copper plate in the above weight ratio and keep it at 1300°C for 30 minutes. Use a quartz glass tube to stir evenly and degas , refining, and finally use charcoal to cover and keep warm for 30 minutes to prepare for casting;

[0034] (3) casting

[0035] When the above-mentioned alloy liquid holding time is over, quickly remove the charcoal covered on the surface, and use an infrared thermometer to measure the casting temperature, and then carry out casting, which uses a water...

Embodiment 2

[0039] A method for preparing a novel copper alloy for medical devices with bactericidal and antibacterial functions, mainly comprising the following steps:

[0040] (1) Ingredients

[0041] Weigh industrial pure iron with a percentage by weight of 3-10%, and the balance is an electrolytic copper plate for use;

[0042] (2) Melting

[0043] First, carry out surface pretreatment on the industrial pure iron and electrolytic copper plates. The specific treatment process is as follows: put the industrial pure iron and electrolytic copper plates into acetone solution with a purity of 99.7%, clean the surface for 15 minutes with ultrasonic waves, and then wash the Put the industrial pure iron and electrolytic copper plate into the drying box respectively, and dry them for 1.3h under the condition of hot air circulation at 55°C. The ultrasonic power is 3.5KW and the frequency is 60kHz. , can remove impurities on its surface, and avoid impurities affecting the purity and performance...

Embodiment 3

[0049] A method for preparing a novel copper alloy for medical devices with bactericidal and antibacterial functions, mainly comprising the following steps:

[0050] (1) Ingredients

[0051] Weigh industrial pure iron with a percentage by weight of 3-10%, and the balance is an electrolytic copper plate for use;

[0052] (2) Melting

[0053] First, carry out surface pretreatment on the industrial pure iron and electrolytic copper plates. The specific treatment process is as follows: put the industrial pure iron and electrolytic copper plates into acetone solution with a purity of 99.7%, clean the surface for 15 minutes with ultrasonic waves, and then wash the Put the industrial pure iron and electrolytic copper plate into the drying box respectively, and dry them for 1.3h under the condition of hot air circulation at 55°C. The ultrasonic power is 3.5KW and the frequency is 60kHz. , can remove impurities on its surface, and avoid impurities affecting the purity and performance...

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Abstract

The invention discloses a preparation method of a novel medical instrument copper alloy having bactericidal and bacteriostatic functions, and belongs to the technical field of preparation of metal materials for medical instruments. The preparation method mainly comprises the following steps of (1) dosing, (2) smelting, (3) casting and (4) finished product processing. The copper alloy prepared by the method can be used for making medical handles, bed handles, infusion stands, dispensing devices, faucets, washing tanks, workbenches and the like, traditionally-used stainless steel products are replaced, and the pathogenic bacterium amount in the ward is better reduced. In terms of the function, the copper-iron alloy has the high strength of structural materials and has the bactericidal and bacteriostatic functions of functional materials, the antibacterial activity cannot disappear, and effective bacteriostatic protection can be provided for a long time. In terms of cost, according to thecopper-iron alloy, cheap iron is added to copper, the cost is reduced, and a foundation is laid for widespread use of the material.

Description

technical field [0001] The invention belongs to the technical field of preparation of metal materials for medical devices, and in particular relates to a method for preparing a novel copper alloy for medical devices with bactericidal and antibacterial functions. Background technique [0002] Healthcare-associated infections impose a heavy socioeconomic burden on people around the world. The U.S. Centers for Disease Control and Prevention (CDC) estimates that healthcare-related infections cost the U.S. between $35 billion and $45 billion a year when combined with the enormous costs paid by individuals. These infections are caused by bacteria that live on objects we touch every day. Those antibiotic-resistant bacteria spread from healthcare settings to schools, homes and public transport. Despite constant hand washing and cleaning, these germs multiply at an alarming rate. [0003] Among them, infections occurring in medical institutions are the most common. Infectious dise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02C22F1/08C25D5/24C23C4/129C23C4/06C23C4/18B08B3/12B21C23/21B21C29/00B21C31/00B21C43/04
CPCB08B3/12B21C23/21B21C29/003B21C31/00B21C43/04C22C1/02C22C9/00C22F1/08C23C4/06C23C4/18C25D5/34C23C4/129
Inventor 马明月庾高峰张航武旭红王聪利吴斌王文斌
Owner SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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