Sterilize Complex Medical Devices With Breakthrough Technology

As medical devices become increasingly sophisticated, traditional sterilization methods can damage sensitive materials such as advanced polymers, fiber optics, and integrated electronics. Andersen Sterilizers addresses this challenge with its low-temperature EOGas 4^PLUS, which utilizes Ethylene Oxide Flexible Chamber Technology (EO-FCT) to deliver terminal sterilization with deep penetration, broad material compatibility, and up to 90% less ethylene oxide than traditional EO sterilization methods.

Material Compatibility

While advanced medical devices offer greater precision and functionality, their delicate materials require a sterilization process that preserves performance throughout the product lifecycle. Conventional high-temperature sterilization methods can damage heat-sensitive electronics, thermolabile polymers, bonded materials, and other critical components through excessive heat, moisture, and oxidation. These effects may lead to corrosion, material degradation, or reduced device longevity.

Our state-of-the-art EOGas 4^PLUS system, featuring Ethylene Oxide-Flexible Chamber Technology (EO-FCT), delivers. EO-FCT is significantly different than traditional ethylene oxide rigid chamber systems. Because EO-FCT removes excess air from the chamber, the system requires only a microdose of EO (17.6 grams) to achieve terminal sterilization. Rigid chambers can require up to 90% more ethylene oxide to achieve the same results.

Lethal to pathogens, EOGas 4^PLUS is FDA-cleared to sterilize all flexible endoscopes to 10-6 SAL (Sterility Assurance Level), including those with>1100 mm working lumens. This system is the first sterilizer to receive FDA 510(k) clearance for terminal sterilization of duodenoscopes and colonoscopes.

EOGas 4^PLUS systems are used around the world for processing medical instruments that, when processed using other modalities, become damaged and degraded. Equipped with two purge probes with process challenge devices (3- and 6-hour gas exposures, respectively), EOGas 4^PLUS goes above and beyond, offering a low per-cycle cost, space-saving tabletop design and unparalleled compatibility. 

Low Emissions

When combined with Andersen’s emissions abator, EOGas 4^PLUS releases less than 0.02 grams of EO into the environment per cycle, making EOGas 4^PLUS one of the most environmentally friendly systems on the market. EOGas 4^PLUS has the same power requirements as a typical hairdryer.

This commitment to sustainability begins with the sterilization process itself. Unlike conventional EO systems that typically use 100 to 170 grams of ethylene oxide per cycle, the EOGas 4^PLUS uses just 17.6 grams of EO per cycle—that’s up to 90% less gas than many traditional sterilization methods. By combining low-dose EO technology with highly effective emission abatement, Andersen enables facilities to achieve terminal sterilization while reducing emissions and supporting both operational efficiency and environmental responsibility.

A Modern Approach to EO Sterilization

Andersen Sterilizers combines small-dose, Ethylene Oxide Flexible Chamber Technology (EO-FCT), and highly effective emissions abatement to help healthcare facilities, manufacturers, and research organizations meet the demands of modern sterilization. Together, these elements support material compatibility, regulatory compliance, and operational efficiency without compromising sterilization performance.

Whether sterilizing complex medical devices, sensitive electronics, or instruments with challenging geometries, Andersen delivers proven, low-temperature solutions designed for today’s evolving healthcare environments. Backed by expert technical support and decades of sterilization experience, Andersen Sterilizers helps customers around the world implement reliable sterilization processes that protect their patients and preserve their instruments.

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