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Antibacterial stainless steel applied to general surgical operating instrument

An antibacterial stainless steel, surgical instrument technology, applied in surgery, medical science and other directions, can solve problems such as environmental bacteriostatic or bactericidal effects that cannot truly reflect antibacterial, and achieve accurate directional effects

Inactive Publication Date: 2017-02-15
深圳中科麦滕医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its limitation is that it cannot truly reflect the antibacterial or bactericidal effect of the environment that actually needs antibacterial

Method used

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  • Antibacterial stainless steel applied to general surgical operating instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] Embodiment: the antibacterial stainless steel material is selected as 2Cr13Cu stainless steel.

[0018] This specific embodiment adopts the following technical scheme: the chemical composition of 2Cr13Cu stainless steel is calculated by weight percentage: C: 0.25%, Cr: 13.5%, Cu: 3.0%, and the balance is Fe; the sample size is 50×50×2mm.

[0019] The heat treatment process is: solution treatment at 980°C±10°C for 1 hour, air cooling to room temperature, then heating up to 400°C for 14, 15 and 20 hours respectively, and air cooling to room temperature. The atomic percentage of antibacterial element Cu on the surface of the sample was tested by X-ray photoelectron spectroscopy.

[0020] Surface roughness: Antibacterial stainless steel samples with Ra of 0.2, 0.4 and 0.8 surface states were designed respectively.

[0021] Bacterial environment used: mixed bacteria of Staphylococcus aureus and Escherichia coli, the concentration was 2×10 4 CFU / mL. The antibacterial perfo...

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PUM

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Abstract

The invention discloses antibacterial stainless steel applied to a general surgical operating instrument. The general surgical operating instrument is made of the antibacterial stainless steel. The alloy component of the antibacterial stainless steel comprises one or more of the Cu element, the Ag element and the rare earth element, and the content of the surface antibacterial element is larger than or equal to 10% by the atom percentage; moreover, the surface roughness Ra of the antibacterial stainless steel surgical operating instrument material is larger than or equal to 0.4; and accordingly, the timely lasting bacteriostasis and antibacterial functions of the antibacterial stainless steel general surgical operating instrument in the surgery process can be ensured. The antibacterial stainless steel related to the invention has a unique broad-spectrum antibacterial property, the using method and the using condition of the antibacterial stainless steel as the specific product mode of the general surgical operating instrument are determined, and infection risks caused by long-time surgery and bacterial reproduction in the external environment can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of metal materials and antibacterial materials, in particular to an antibacterial stainless steel used in general surgical instruments. Background technique [0002] Antibacterial stainless steel refers to a kind of metal materials and antibacterial materials that rely on the slight corrosion of stainless steel itself to cause the slight release of antibacterial elements such as Cu, Ag and light rare earth elements, which have achieved the purpose of antibacterial and bactericidal. In the late 1990s, Japan’s Kawasaki Iron and Steel Co., Ltd. took the lead in announcing the development of silver-containing antibacterial stainless steel R304-AB, R430-AB and R430LN-AB, and its sterilization rate against Escherichia coli reached more than 99%, showing excellent performance. antibacterial properties. Subsequently, Japan's Nisshin Steel Co., Ltd. developed three series of copper-containing antibacterial stainless...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/20C21D6/00A61L31/02A61L31/16
CPCC22C38/20A61L31/022A61L31/16A61L2300/102A61L2300/104A61L2300/404C21D6/002C22C38/005C22C38/007
Inventor 杨春光程德林赵颖杨柯
Owner 深圳中科麦滕医疗器械有限公司
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