Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anti-infection medical stainless steel

A stainless steel, anti-infection technology, applied in medical science, prosthesis, etc., can solve problems such as bacterial infection and achieve excellent antibacterial performance

Inactive Publication Date: 2011-11-09
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an anti-infection medical stainless steel, which solves the problems of bacterial infection caused by medical instruments such as stainless steel used in traditional Chinese medicine in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-infection medical stainless steel
  • Anti-infection medical stainless steel
  • Anti-infection medical stainless steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The anti-infection stainless steel in the present invention will be applied to all kinds of stainless steel medical devices used in medical clinical fields such as orthopedics, stomatology, and cardiovascular stents. It not only has a strong in vitro bactericidal effect, but also has a good antibacterial effect in vivo biocompatibility.

[0028] Antibacterial stainless steel among the present invention is prepared as follows by routine method:

[0029] (1) The alloy components are sequentially added to a vacuum smelting furnace for vacuum induction smelting, refined at 1400-1500°C for 10-20 minutes, then magnetically stirred and cast into ingots;

[0030] (2) After homogenization annealing at 1000-1150°C and heat preservation for 1-2 hours, forge into rod-shaped or block-shaped samples.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of stainless steel materials, in particular to medical anti-infection stainless steel. The stainless steel comprises the following chemical compositions in percentage by weight: less than or equal to 0.08 percent of C, less than or equal to 1.00 percent of Si, less than or equal to 2.00 percent of Mn, 8-16 percent of Ni, 16-20 percent of Cr, 3.0-5.0 percent of Cu, 0-4.0 percent of Mo and the balance of Fe. The content of impurity elements in steel is consistent with a corresponding requirement in a medical stainless steel national standard. After special thermal treatment on the stainless steel, bar-shaped or particulate copper-rich precipitated phases are uniformly dispersed and distributed in a stainless steel substrate, so that the stainless steel is endowed with an anti-bacterial-infection function. The medical anti-infection stainless steel has a unique anti-bacterial-infection function and can be widely applied to various stainless steel medical instruments used in the medical clinical fields of the department of orthopedics, the department of stomatology, cardiovascular brackets and the like; and the problems of bacterial infection and the like caused by medical instruments such as medical stainless steel and the like in the prior art are solved.

Description

technical field [0001] The invention relates to the field of stainless steel materials, in particular to a medical anti-infection stainless steel, which has a unique anti-bacterial infection function and can be widely used in various stainless steel medical devices used in medical clinical fields such as orthopedics, stomatology, and cardiovascular stents. Background technique [0002] Due to its excellent strength, toughness, bending fatigue resistance, good processing performance, and low cost, stainless steel is widely used in artificial joints (knees, knees, shoulders, ankles, elbows, wrists, knuckles, etc.), bone trauma products ( Intramedullary nails, steel plates, screws, etc.), spinal orthopedic internal fixation systems and other orthopedic implant products, as well as orthodontic products (brackets, rings, orthodontic archwires, implants for anchorage) and interventional cardiovascular stents Medical devices such as therapeutic device products. 316L, 317L, 304, et...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/42C22C38/44C22C38/58A61L27/04A61L27/50
Inventor 杨柯任玲南黎
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com