Nickel-titanium stent surface coating spraying

Nickel-titanium stent surface coating spraying – Cheersonic

Nickel-titanium stents, as core implantable devices in interventional medicine, are widely used in the treatment of stenosis in coronary and peripheral blood vessels due to their superior elasticity and shape memory properties. Surface coating is a key process for improving biocompatibility, corrosion resistance, and drug loading capacity. Traditional spraying and dip coating methods are prone to uneven coating, pinholes, and material waste. Our ultrasonic spraying equipment is specifically developed for nickel-titanium stent coating applications, using precision ultrasonic atomization technology to address industry pain points and provide an efficient and stable solution for mass production of medical stents.

Nickel-titanium stents have a fine structure and complex mesh, requiring coatings to meet medical-grade uniformity and density requirements. Our ultrasonic spraying equipment utilizes high-frequency ultrasonic atomization technology to transform medical-grade TPU, polymers, and other coating materials into uniform and fine droplets of 10-18 micrometers through ultrasonic vibration. Without high-pressure airflow impact, the droplets gently deposit on the stent surface, completely penetrating the complex mesh structure to achieve full coverage of the stent’s inner and outer surfaces, forming a dense coating free of pinholes and orange peel texture, thus preventing coating defects at their source.

In terms of coating precision control, the equipment features a fully digital intelligent control system that can precisely adjust spray flow rate, atomization power, stent rotation speed, and moving speed. Film thickness can be precisely controlled within the range of 10nm-100μm, and coating uniformity is controlled within ±5%, ensuring consistent film thickness and stable drug loading for each batch of stents, fully meeting the stringent standards of medical device production. Simultaneously, the equipment is equipped with customized special fixtures for quick loading and unloading of various specifications of nickel-titanium stents, effectively preventing stent bending and deformation during spraying, ensuring precise coaxiality, and adapting to mass production needs.

Compared to traditional processes, the core advantages of ultrasonic spraying equipment also lie in its high efficiency, energy saving, stability, and durability. Traditional spraying materials have a utilization rate of only 20%-30%, while our equipment, through directional deposition technology, achieves a raw material utilization rate of 95%, significantly reducing the loss of high-value medical coating materials and helping companies reduce costs and increase efficiency. The equipment is equipped with a self-cleaning ultrasonic nozzle that continuously performs ultrasonic cavitation during operation, effectively preventing nozzle clogging, reducing downtime for maintenance, and ensuring continuous and stable production. Furthermore, the equipment is compatible with various medical coating materials, flexibly adapting to the coating needs of different types of nickel-titanium stents, demonstrating strong versatility.

The safety and stability of medical implantable devices are core considerations. Our ultrasonic spraying equipment employs a non-contact spraying design, eliminating mechanical contact damage. The atomization process is gentle, avoiding oxidation or structural damage to the nickel-titanium stent surface. Simultaneously, the coating layer bonds firmly to the stent skeleton, resisting peeling and cracking, significantly improving the safety and lifespan of the stent after implantation. From laboratory research and development to large-scale mass production, the equipment can precisely replicate process parameters, ensuring consistency from pilot-scale to mass production, helping medical device companies quickly advance product registration and market launch.

With the rapid development of interventional medical technology, market demands for the quality of nickel-titanium stent coatings continue to escalate. Our ultrasonic spraying equipment has deep expertise in the field of medical precision coatings, using technological innovation to overcome traditional process bottlenecks, addressing the three core requirements of high precision, high efficiency, and low cost, providing a reliable and mature equipment solution for nickel-titanium stent surface coating. In the future, we will continue to optimize equipment performance, empowering more medical device companies to enhance product competitiveness and contributing to the high-quality development of the healthcare industry.

 

About Cheersonic

Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.

Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.

Chinese Website: Cheersonic Provides Professional Coating Solutions