MEDICAL APPLICATION
Blood Collection and Blood Gas Tube Coating: Millions of Tubes per Month
Precision interior coating of evacuated blood collection tubes, blood gas collection tubes, syringes, and VBCT devices with EDTA, heparin, silicones, and blood clot activators using airless ultrasonic spray technology, on production coating systems that run millions of tubes per month.
The Challenge
Coating the interior of blind-hole applications like Vacutainer tubes and blood gas collection syringes is extremely difficult with conventional air spray systems. Compressed air causes blow-back in deep, narrow cavities, leading to uneven reagent deposition, wasted materials, and inconsistent anticoagulant performance that compromises downstream assay results.
Our Solution
MicroSpray ultrasonic nozzles operate without compressed air, producing low-velocity droplets that can be robotically guided into narrow tube interiors for full, controlled coverage of targeted areas. Acoustic atomization keeps solids in suspension, preventing agglomeration and ensuring homogeneous coating even with particle-laden solutions like EDTA or heparin formulations.
Product Demos
Blood Collection Tube Coating — Single Cycle
Ultrasonic nozzle dosing 30 µL heparin onto a blood collection tube, 1 sec cycle time, 1 million per month production.
See It In Action
Live demonstration of the coating process.
Why Ultrasonic Spray?
- ✓Low-velocity airless spray eliminates blow-back in blind-hole geometries
- ✓Targeted area coating with programmable spray patterns and dwell times
- ✓Multi-layer capability for sequential reagent deposition
- ✓Over 90% material transfer efficiency reduces reagent waste and operating costs
- ✓Consistently narrow droplet distributions for uniform wall coverage
- ✓Self-cleaning nozzle design minimizes clogging and downtime
- ✓Solvent-free operation enables eco-friendly, non-hazardous formulations
Recommended Equipment
Zero Air Nozzle
Airless operation is essential for coating deep blind-hole interiors without blow-back
View details →Focused Nozzle
Precision focal point enables targeted deposition inside narrow tube geometries
View details →Leverage over 25 years of expertise coating blood tubes and diagnostic devices.
Let's discuss your specific coating requirements.