MEDICAL
Sterile Venting
Protect Medical Devices from Fluids, Bacteria and Viruses While Balancing Variable Pressures
Various patient monitoring medical devices need protection from fluids and/or bacteria and viruses. In addition, these devices often must balance different pressures as required by the applications. Track-etched membranes are a key component as they show a high resistance towards pressure changes and are therefore an ideal solution for applications with high movement of membrane and unlimited incremental pressure changes. Oxyphen membranes do not show elongation.
Due to their smooth surface, track-etched membranes are a perfect surface filter with reversible (backflush) and self-cleaning functionality for hydrophobic venting applications.
- Smallest dimensions possible
- Customized venting plugs available
- Small tolerance range for dependable leakage tests for end of line (by air flow)
- Precise membrane tunability regarding airflow-rate and water entry pressure resistance
- High chemical resistance
- Highly repellent self-cleaning surface
- 100% Free of PFOA: Compliant with (EC) 1907/2006 REACH / Regulation (EU) 2019/1021 POP
All of these applications benefit in similar ways by the inclusion of microfiltration and venting membranes in their design:
Typical Applications:
- Vented caps
- Sterile vents for cell culture flasks and bottles, bioreactors, fermenters
- Liquid stopper devices
Venting — for critical protection:
- Medical device vents
- IV administration set vents
- Spike vents
- Ostomy bags
- Urology bags
- Batteries used in medical products
- PET Track-Etched Membranes unlaminated
- PET Track-Etched Membranes laminated with PET/ PP non-woven material
- Additional membrane materials available upon request
| Specification | Unique-Mem® Track-Etched Membranes | RoTrac® Track-Etched Membranes |
|---|---|---|
| Bandwidth (mm) |
10, 13, 14.5, 20 & custom sizes
|
|
| High Quality Raw Materials |
PET – naturally slightly hydrophilic
PC – naturally slightly hydrophobic
|
PET-Membrane/ PET-Nonwoven –harder
PET-Membrane/ PP-Nonwoven – softer
|
| Pore Size Ranges |
0.1µm to 10µm
|
0.2µm to 3.0µm
|
| Pore Density Ranges |
105 to 109 pores per cm2
|
2×106 bis 3×108 pores per cm2
|
| Thickness Ranges |
8µm to 50µm
|
90µm to 220µm
|
| Temperature Ranges |
– 40°C and 160°C (for special application < 200°C)
|
– 40°C and 130°C (for special application < 160°C)
|
| Air Flow Ranges |
Up to 800 l / (bar cm2 min)
|
Up to 37 l / (bar cm2 min)
|
| Hydrophilic Treatments |
Various hydrophilic treatments increase water flow rate and wetting abilities of the membrane (example: PVP treatment)
|
|
| Hydrophobic / Oleophobic Treatment: |
Grade up to 7.5; AATCC TM 118
|
|
| Salt spray resistance test2 |
According to IEC 60068-2-52, based on validation by the customer
|
|
| Temperature resistance test1 |
In accordance with ISO 16750-4
|
|
| Ice water shock test1&2 |
In accordance with ISO 16750-4
|
|
| Climate resistance test |
In accordance with ISO 16750-4
|
|
| Chemical resistance test1 |
According LV124/ ISO 16750-5
|
|
| IP Protection1 |
IP 64/65/66/67/68, according to DIN 40050
|
|
1 Testing in Progress
2 Based on Customer Validation
Highlighted Case Study
Electronic Textiles
Oxmotex AG is a research and development company dedicated to electroosmotic vapor and fluid transport, who developed revolutionary proprietary technology for electronically controlled moisture transport in membranes and textiles. As they looked to create a new innovative technology that would provide active electronically driven moisture transport, they came to Oxyphen for a track-etched membrane solution that would be responsive to changing climates, transport moisture beyond normal sweat rates, and be comfortable for the wearer.
Related Resources
Viral Filtration Efficiency (VFE) Certificate
Final test report from Nelson Labs for Viral Filtration Efficiency (VFE) at an Increased Challenge Level. Also available is the Bacterial Filtration Efficiency (BFE) report.
Bacterial Filtration Efficiency (BFE) Certificate
Final test report from Nelson Labs for Bacterial Filtration Efficiency (BFE) at an Increased Challenge Level. Also available is the Viral Filtration Efficiency (VFE) report.
OxyDisc® Product Brochure
Learn more about OxyDisc® die-cut membrane discs that can be produced using either hydrophobic or hydrophilic membranes and easily handled and mounted using multiple assembly options to suit a variety of industries.
Register for our On-Demand Webinar
Delivering Precision & Control: An Introduction to Track-Etched Membrane Technology
Related Products
Rollstock Membrane
Ideally suited for in-house and large-scale manufacturing applications, Oxyphen’s track-etched rollstock membrane can be laminated, unlaminated, or fiber-based – supplied from polyester (PET) or polycarbonate (PC) high quality raw materials.
OxyPad® Self-Adhesive Pads
OxyPad® membrane pads, which are easily integrated inside or outside your housing design, promote consistent pressure equalization and protection against water, dust, and other harmful particulates.
OxyDisc® Die-Cut Membrane Discs
OxyDisc® die-cut membrane discs can be easily mounted and produced using either hydrophobic or hydrophilic membranes for a variety of filtration or venting application requirements.
Membrane Technologies Available
Technologies
Unique-Mem® Unlaminated Track-Etched Membranes
Unique-Mem® track-etched membranes, available as hydrophilic or hydrophobic, are characterized by cylindrical shaped pores penetrating the membrane in different angles. They have a smooth flat surface and well-defined flow rates.
Technologies
RoTrac® Laminated Track-Etched Membranes
RoTrac® track-etched membranes are Unique-Mem® membranes that are supported with non-wovens (PP or PET) to create a more robust membrane. They are available as either hydrophilic or hydrophobic membranes.
Contact Us
Interested in speaking with one of our track-etched membrane experts?