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In October 2015, the U.
A glass simulation model used to evaluate the coating integrity of neurovascular catheters, sheaths and medical wires (left) and peripheral PTA catheters (right) (source Medtec medical device design and manufacturing)
ABOUTcoating DESCRIPTION
Hydrophilic coating
In the past few years, new coating formulations have emerged, eliminating the need to choose between high lubricity and low particle generation.
By reducing the effort required to manipulate intravascular medical device products during vascular interventional therapy, the hydrophilic coating reduces the risk of damaging the blood vessel wall and prevents vasospasm.
The hydrophilic coating can reduce the friction between vascular devices by 10 to 100 times.
Antibacterial coating
Contact antibacterial coatings are the earliest type of antibacterial coatings studied.
Biomedical materials are widely used in clinical treatment, and the resulting iatrogenic infections are becoming more prominent, which seriously threatens people’s lives and health.
Antibacterial coating
Porous medical implant coating
The surface roughness, charge properties, and hydrophilicity of porous materials can all affect the adhesion and colonization of bacteria.
For the research and development of new antibacterial materials, there are the following requirements: first, and most importantly, the material's biocompatibility and tissue integration ability should meet the long-term needs of the human body; secondly, if the biological material itself can meet the biological requirements of the place where the tissue is replaced Mechanical requirements, and strong plasticity, it may be the best choice to customize it into a monolithic antibacterial porous implant combined with 3D printing; finally, the long-term antibacterial properties and the prevention of bio-resistance are the same.
In short, with the continuous development of new porous materials and the discovery of new antibacterial substances, how to effectively combine the properties of the two and prepare a more efficient antibacterial medical porous material to meet clinical needs is still a problem that needs to be further explored.
Source "Journal of Chinese Academy of Engineering"
