Line Spray Focused Ultrasonic Atomizer Nozzle For Antiplatelet Drug Coating

The ultrasonic atomizer nozzle for line‑spray targeted anti‑platelet drug spraying mixes with low‑pressure air/gas to generate a soft, well‑collimated fine droplet beam. Liquid is fed to the nozzle's atomizing surface via an isolated hypotube, while low‑pressure air/gas flows through the nozzle annular gap. This airflow shapes atomized droplets into a highly precise target jet with a diameter of only 0.020 inches (0.5 mm).
Each ultrasonic nozzle works at a specific resonant frequency, which defines the median droplet size. Variations in droplet size are minimal, and droplet‑size distribution can be accurately predicted within a defined range using mathematical modeling. As an example, a 120 kHz nozzle delivers a median droplet size of 18 μm when spraying water. Higher operating frequencies yield smaller achievable median droplet sizes.

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1. Balloon catheter
A balloon catheter is a flexible, expandable catheter fitted with a balloon at its distal tip. The balloon can be inflated using liquid to establish a stable working zone at the target site.
2. Ultrasonic spraying system
The balloon catheter assembly integrates an ultrasonic spraying system, comprising an ultrasonic nozzle, spray‑material supply unit and coating actuation system. The ultrasonic nozzle atomizes the liquid coating material into fine droplets via ultrasonic vibration. Compressed air flow transports these droplets onto the target substrate surface.
3. Control system
This system governs overall equipment operation and allows adjustment of spraying parameters. It is typically equipped with a touch‑screen HMI, enabling operators to configure spray settings, monitor equipment status and switch between operating modes.

Multi-Axis Motion for Complex 3D Geometries

Standard automated sprayers often fail when applying materials to complex, irregular industrial structures. Our industrial ultrasonic coating platforms combine high-performance atomizing nozzles with fully programmable XYZ motion systems and rotary axes. This sophisticated multi-axis capability ensures the nozzle maintains optimal distances and angles relative to highly articulated surfaces. Perfect for complex medical components, irregular automotive electronics, and contoured optical lenses, our multi-axis coordination ensures uniform thickness across every square millimeter of your production parts.