Medical Packaging

At Porex, innovation is our foundation: our products list is only the beginning. Every day, our research scientists and engineering teams are creating new porous materials products and solutions to meet your needs and solve your specific challenges. For decades, we've helped medical device ideas come to fruition and go to market. Our medical products are developed specifically to meet the requirements of medical professionals and manufacturers alike. Have an idea? Need a custom solution? Contact us and let's get started.

Bone/Tissue Protective Packaging

How well a medical device performs, can depend on how well it vents. POREX® lyophilization vents are hydrophobic, with high airflow and high Bacterial Filtration Efficiency (BFE). Used as cap liners for bone graft and other tissue containers, POREX® lyophilization vents provide a sterile barrier with high-efficiency venting and help maintain the sterile integrity of bone/tissue grafts.

Medical Tray Packaging - POREX Virtek™ PTFE With P3 Technology™

Is your packaging maintaining sterility after sterilization?

As prevention of healthcare associated infection (HAI) becomes more important, hospitals are asking questions about the protection provided by medical device packaging after sterilization.

To assist device manufacturers with the prevention of HAI, Porex has developed POREX Virtek™ PTFE with P3 Technology. It is a new venting capability for ethylene oxide (EtO) sterilization in medical device packaging applications. The initial offering will be specialty porous PTFE membranes that are outstanding sterile barriers with high airflow. Compared to flashspun high-density polyethylene, the porous structure of PTFE is more uniform. POREX Virtek™ PTFE with P3 Technology can help improve the EtO sterilization efficiency and maintain medical device sterility after sterilization.

Structural Comparison of POREX Virtek™ PTFE with p3 technology and Flashspun High-Density Polyethylene

These SEM images show that the porous structure of our POREX Virtek™ PTFE with P3 Technology is more uniform compared to flashspun high-density polyethylene. The porous structure of POREX Virtek™ PTFE with P3 Technology is an intricate network of open-celled omni-directional pores, which creates the optimal torturous path to prevent the penetration of bacteria.

Uniform Porous PTFE

% Penetration (ASTM F2638) and Gurley Hill Airflow Results

POREX Virtek™ PTFE with P3 Technology has a unique combination of performance properties. The table below shows the ASTM F2638 percent penetration results as well as Gurley Hill Airflow results. The ASTM F2638 test method correlates to the percent penetration of bacteria over a range of airflow rates. POREX Virtek™ with P3 Technology materials provide 2–10 times better sterile barrier performance with 3–9 times better airflow compare with flashspun high-density polyethylene.

1. Pmax data from Canon Webinar, Microbial Barrier Properties of Porous Sterile Barrier Systems, John R. Bamberger from DuPont™
2. Gurley data is from DuPont™ datasheet


Porex specialty porous PTFE sheet for medical packaging    

Read what the press has been writing about our innovative technology since we launched it at the MD&M West 2013 in Anaheim, California.

Plastic News Magazine – 04/02/2013

Medical Device Technology – 02/22/2013

Sterilization Container - POREX® Virtek™ PTFE Reusable Filters

POREX®  Virtek™ PTFE Reusable Filters serve a dual purpose: as a vent to allow pressure equalization during the sterilization process, and as a filter barrier to bacteria during subsequent storage. These reusable filters, comprised of polytetrafluoroethylene (PTFE) engineered and designed to withstand repeated sterilization cycles as well as deliver substantial performance, convenience, and cost savings over traditional single-use paper and textile filter materials. The vents are also designed for single-use steam or ethylene oxide (EtO) sterilization packaging.

Glass Ampoule Applicators and Filters

In packaging systems where crushable glass ampoules are used, POREX® Glass Ampoule Filters provide optimal, balanced fluid or gas flow rates as well as excellent chemical and physical resistance. Our ampoule filters are designed for maximum structural integrity to support the external tube and to ensure total retention of glass shards within the broken ampoule. Assorted geometries accommodate varied device requirements for medical, pharmaceutical, consumer, and industrial markets. Products that incorporate POREX Glass Ampoule Filters include breath detectors, dental treatment applicators, topical drug delivery devices.

Media Retention Vents

Used in the production of desiccant and oxygen scavenging devices in consumer, medical, pharmaceutical, and industrial markets, POREX® Media Retention Vents offer optimal retention of organic and activated media, have minimal creep, and provide balanced filtration efficiency, airflow, and back pressure.