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

Copper-containing composite coating and preparation method

A technology of composite coating and copper content, which is applied in the direction of coating, metal material coating process, ion implantation plating, etc., can solve the problems of increasing the cost of coating preparation and the inability to accurately control the content of coating elements, so as to achieve the goal of suppressing The effect of surface endothelialization, simple controllability, and process stability

Pending Publication Date: 2022-01-21
CHENGDU UNIVERSITY OF TECHNOLOGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1. The preparation of copper-titanium composite coatings on the surface of metal medical devices must meet the requirements of double-target or multi-target sputtering. Each target needs to adjust different sputtering powers to achieve different contents of components in the coating. Due to the power parameters of different equipment The impact on the ionization rate of each target is different, and the element content in the coating cannot be accurately controlled;
[0010] 2. Coatings with different element contents can be obtained by using composite targets, but a series of composite targets are required for element control, which increases the cost of coating preparation

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
  • Copper-containing composite coating and preparation method
  • Copper-containing composite coating and preparation method
  • Copper-containing composite coating and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A copper-titanium composite coating is deposited on the surface of a medical titanium alloy by magnetron sputtering.

[0038] Step 1, polishing and drying the medical titanium surface.

[0039] Step 2, put the medical titanium sheet into the vacuum chamber and perform reverse sputtering. The pressure in the vacuum chamber of the reverse sputtering is less than 6×10 -4 Pa, adjust the flow rate of argon gas so that the air pressure in the vacuum chamber reaches 2Pa, at this time, adjust the bias power supply to -700V, and make the argon ions perform reverse sputtering to clean the surface of the substrate, and the cleaning time is 10 minutes.

[0040] Step 3, put a titanium target in the vacuum chamber, place a copper sheet with a diameter of 10 mm and a thickness of 2 mm on the titanium target in a uniform manner, and remove oxide impurities on the surface of the target by pre-sputtering. When the air pressure in the vacuum chamber reaches 6×10 - 4Pa, open the baffle ...

Embodiment 2

[0045] A copper-titanium composite coating is deposited on the surface of a medical titanium alloy by magnetron sputtering.

[0046] See embodiment one for step one and step two.

[0047] Step 3, put a titanium target in the vacuum chamber, place a copper sheet with a diameter of 10 mm and a thickness of 2 mm on the titanium target in a uniform manner, and remove oxide impurities on the surface of the target by pre-sputtering. When the air pressure in the vacuum chamber reaches 6×10-4Pa, open the baffle between the target and the substrate, adjust the flow of argon gas so that the air pressure in the vacuum chamber reaches about 3Pa, and start sputtering. After the ignition in the vacuum chamber is successful, adjust Argon gas flow, so that the sputtering pressure is 0.8Pa, close the baffle between the target and the substrate, adjust the deposition bias to 0V, and the sputtering power to 200W, pre-sputter the composite target to remove the target Surface oxide impurities, re...

Embodiment 3

[0052] A copper-titanium composite coating is deposited on the surface of a medical titanium alloy by magnetron sputtering.

[0053] See embodiment one for step one and step two.

[0054] Step 3, put a titanium target in the vacuum chamber, place a copper sheet with a diameter of 10 mm and a thickness of 2 mm on the titanium target in a uniform manner, and remove oxide impurities on the surface of the target by pre-sputtering. When the air pressure in the vacuum chamber reaches 6×10 - 4 Pa, open the baffle between the target and the substrate, adjust the argon gas flow rate to make the pressure in the vacuum chamber reach about 3Pa, and start sputtering. 0.4Pa, close the baffle between the target and the substrate, adjust the deposition bias to 0V, and the sputtering power to 100W, pre-sputter the composite target to remove oxide impurities on the target surface, and the removal time is 10 minutes.

[0055] Step 4: Open the baffle between the target and the substrate, and ...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to preparation of a composite coating capable of accurately regulating and controlling the copper content on a medical metal surface, and belongs to the technical field of biomedical materials. According to the copper-containing composite coating, single-target sputtering deposition is adopted, a certain number of copper sheets with specific diameters are placed on a target material, and the copper-titanium composite coating capable of accurately regulating and controlling the copper content is formed on the metal surface by changing sputtering bias voltage and sputtering power. A composite target for preparing the copper-containing composite coating by a method provided by the invention is simple in design, the copper content in the coating can be accurately regulated and controlled, and the multi-element composite coating can be obtained by single-target sputtering.

Description

technical field [0001] The invention relates to the field of biomedical materials, in particular to a preparation method capable of accurately regulating copper-containing composite coatings. [0002] technical background [0003] Cardiovascular disease is the leading cause of death from human diseases, among which coronary heart disease is the most common and most threatening cardiovascular disease. The advantages of stent-based interventional surgery with less trauma and significant therapeutic effect have become the main means of treating coronary heart disease. [0004] Vascular stents include bare metal stents and drug-eluting stents. The main problems of bare-metal stents are host reactions and material reactions caused by in-stent restenosis and corrosion of metal materials in blood; the first generation of drug-eluting stents has poor inhibition Intimal hyperplasia has a better effect, but the non-degradable polymer coating is not completely eluted or delayed elution ...

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): C23C14/35C23C14/16C23C14/02A61L31/08A61L31/02A61L31/14
CPCC23C14/35C23C14/3407C23C14/165C23C14/345C23C14/022A61L31/088A61L31/022A61L31/14
Inventor 虎琼刘恒全杨曦林泽璇
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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