Innovative technologies applied in the medical field

Ultrasonic spraying - innovative technology used in the medical field

Coating preparation

● Antibacterial coating: Common coatings include silver-containing coatings. Silver ions have a broad-spectrum antibacterial effect and can effectively inhibit the growth and reproduction of a variety of bacteria. There are also some antibacterial coatings based on nanomaterials, such as nano zinc oxide coatings, which also have good antibacterial properties.

● Drug sustained-release coating: Antibiotics, anti-inflammatory drugs, etc. can be loaded into the coating to achieve slow release of drugs.

● Lubricating coating: For example, polytetrafluoroethylene (PTFE) coating has an extremely low friction coefficient and can reduce the friction resistance of medical devices during use.

Improvements and enhancements after coating

● Enhanced antibacterial properties: For medical devices such as catheters, after being coated with a silver-containing coating, the adhesion and growth of bacteria on their surfaces can be significantly reduced, thereby effectively reducing infections caused by the use of medical devices, reducing the risk of infection for patients, and improving medical safety.

● Drug sustained-release function realization: Coating a drug sustained-release coating on a cardiovascular stent. After implantation in the human body, the drug in the coating can be slowly released into the surrounding tissues, inhibiting the excessive proliferation of vascular smooth muscle cells, preventing vascular restenosis, improving the effect of cardiovascular interventional treatment, and improving patient prognosis.

● Improved lubrication properties: Coating a lubricating coating on the surface of surgical instruments such as tweezers and scissors can make the instrument operation smoother, reduce tissue damage, improve the accuracy and efficiency of surgical operations, and reduce the difficulty and risk of surgery.

Advantages of ultrasonic spraying technology

● High coating uniformity: The high-frequency vibration of ultrasound makes the coating form uniform and fine droplets, which can form a coating with uniform thickness on the surface of medical devices, avoiding the problems of uneven coating thickness, local accumulation or missing coating that may occur in traditional spraying methods, and ensuring the consistency and stability of coating performance.

● High material utilization rate: The spraying amount of the coating can be accurately controlled, and micro-spraying can be performed on demand, which reduces the waste of coating, especially for some expensive biological materials or drugs, which can effectively reduce costs and improve resource utilization efficiency.

● Little damage to the substrate: During the spraying process, the working pressure of the ultrasonic spraying equipment is low, and the impact force on the substrate of the medical device is small, which will not have an adverse effect on the structure and performance of the device. It is suitable for medical devices of various materials and shapes, including some precise and fragile devices.

● Complex shape spraying can be achieved: It can adapt well to the complex shapes and fine structures of medical devices, such as the concave and convex surfaces of joint prostheses, the inner walls of catheters, etc., and can achieve uniform spraying to ensure that the coating can perform well in all parts.

● Protect the environment: Less paint mist and splashing are generated during the spraying process, which reduces the emission of harmful gases and particulate matter, and has little pollution to the production environment. It meets the high requirements of the medical industry for the production environment and is conducive to ensuring the health of operators and the cleanliness of the production environment.