Air Stop MembraneFilter

As an innovation of infusion therapy devices, an airstop membrane or airstop filter is recommended within an infusion line, to increase infusion safety and decrease nurses’ workload.

Cobetter’s Airstop membrane could blocks automatically the air passing when the infusion drip chamber runs empty. The surface tension of liquid within the porous structure of wet membrane automatically stops the flux, and form a fluid protection surface to protect the downstream infusion line from air entrance.Thense, the fluids will stay maintained in the infusion line under the drip chamber. It could prevent bubbles from entering the human’s blood vessel.The Airstop function could solidly last above 30mins while the patients are walking or moving around. Even with extremetly low surface tension drugs(i.e.Paclitaxel,Fat Emulsion Injection), it could still effectively maintain it’s airstop function. An airstop filter membrane is a highly hydrophilic porous disc membrane welded on the bottom of a drip chamber, the instant wetting ability active the membrane as an infusion flux filter once it contacts fluids. And the 5μm -15μm pore size range prevents air bubbles/particles/crystals from being injected into patients.The membrane combine the airstop function with the filtration function together perfectly.

Cobetter could supply the airstop membrane in discs or rolls. We are equipped with precious die cutting machines to meet your customization requirement. Our application experts could help you with drip chamber structure designing and membrane welding process. 

The Superiorities of Cobetter AirStop Filter Membrane:

• ISO13485 Certified Product

• Certified Biological Safety (ISO 10993/USP Class VI)

• Available Pore Size : 5μm-15μm

• Particle Barrier : Particle Retention Efficiency >97% @ 5μm

• Air Barrier : Keeps Removing Air Bubbles Once Wetted 

• Auto Stop Function : Infusion Stops Once the Drip Chamber is Empty 

• High Flow Rate : Minimum 320 ml / min*cm²@10kPa 

• Optimizing Hydrophilic : Less Priming Time 

• Lipid Infusions Compatible : High porosity structure 

• Excellent Welding Compatibility : Ultrasonic, Thermal, Co-molding

  
  

  
  

  
  

  
  

  For technical data sheet or application inquiry, you are more than welcome to contact our sales representative by sales@cobetterfilter.com or leave a message