Ultrasonic Interventional Stent Spraying
Ultrasonic Interventional Stent Spraying – Cheersonic
The characteristics of the bracket: the surface is not flat, and the geometric shape is complex.
Traditional spraying method: dip coating method. Dip coating will cause waste of drugs, and energy consumption will be consumed in the air drying process. Ultrasonic spraying reduces the waste of drugs and avoids energy consumption.
At present, the application of ultrasonic sprayed blood vessel stents is relatively mature.
Ultrasonic spray intervention stent case: We take coronary artery stent grafting as an example. Ultrasonic application to the vascular stent nozzle is currently based on 120KHZ. At this frequency, the particle diameter is 18um. The spray diameter is 0.04mm. Currently spraying the blood vessel stent The whole machine is UAM3000 ultrasonic atomizing spraying equipment.
Ultrasonic Features:
1. Reduce waste: Ultrasonic use of medical textiles saves drugs compared to traditional dip coating
2. Atomization uniformity: Ultrasonic sprayed slides are more uniform than traditional high pressure spray
3. Small atomized particles: smaller particle diameter helps microcapsules to play a role in more fields
4. Not easy to block
The commonly used stent coating technology can be ultrasonic coating, which sprays polymer and drug solutions (using various solvents) onto the stent, so that a uniform drug release layer can be uniformly deposited on the surface of the stent. Ultrasonic nozzles have the advantage of penetrating complex stent geometries, ensuring complete coverage of all pillar surfaces without the need for webbing. The soft atomized spray can adhere well to the surface, and the morphological characteristics of the coating can be adjusted by modifying the process parameters. The advantage of the ultrasonic spraying system is that the coating formed by dip coating is much thinner, can save spraying materials to a large extent, and the nozzle is not easy to be blocked.
UAM3000 is a high-performance stent spraying equipment developed for stent series products, mainly used for drug coating on the surface of stents. The special nozzle for ultrasonic stent with national patent can realize accurate application of medicine, and the fixture specially equipped for stent is convenient for loading and unloading. This device has the characteristics of supporting multiple series and multiple types of stents, high drug utilization, accurate drug delivery, and high uniformity of the stent membrane layer.
Video of Precision Ultrasonic Stent Coating Machine
