Supercritical CO₂ Cleaning

An alternative to conventional spray cleaning

The performance and safety of medical devices rely above all on controlled cleanliness, which is essential to ensure their reliability and regulatory compliance.

However, the evolution of materials, the increasing complexity of device geometries, and the tightening of regulatory requirements are creating new cleanliness challenges, highlighting the limitations of conventional water- or solvent-based cleaning methods.

To address these challenges, Selenium Medical is pursuing sustainable innovation by expanding its expertise through the integration of supercritical CO₂ cleaning into its ultra-clean cleaning processes. This innovative technology combines efficiency, safety, and environmental responsibility.

An innovative and controlled ultra-clean cleaning process

Water and solvent-free
Supercritical CO₂ provides highly effective cleaning without the use of water or detergents, eliminating the risk of chemical residues and simplifying the overall treatment cycle, while fully meeting the cleanliness requirements applicable to medical devices.

Broad material compatibility
Well suited to complex geometries and a wide range of materials, the process effectively treats not only conventional materials but also implantable textiles, electronic components, bioresorbable materials, catheters/connectors, and additively manufactured implants.

Deep and thorough cleaning
Its diffusion and solubility properties enable access to the most difficult-to-reach areas, ensuring the effective removal of microorganisms, organic and inorganic contaminants, and particulates.

Low-temperature process
Operating at temperatures below 40 °C, the process is suitable for cleaning thermosensitive medical devices while preserving delicate materials.

Safe and non-aggressive
Inert and non-toxic, supercritical CO₂ ensures safe cleaning with no risk of corrosion or material degradation.

Environmentally friendly
CO₂ is reused in a closed-loop system and sourced from carbon capture streams, reducing the carbon footprint and eliminating the discharge of effluents or chemical waste.

High-performance, sustainable cleaning integrated into the production ecosystem

Integrated at the interface of ISO 7 cleanrooms, supercritical CO₂ cleaning provides a high-performance ultra-clean solution capable of thoroughly removing contaminants and microorganisms from medical devices with complex geometries and materials. It then enables sterile assembly, finishing, and packaging operations in a controlled ISO 7 environment.

Performed in a closed cycle using a non-toxic, chemically inert fluid, the process significantly reduces environmental impact while delivering fast, reliable cleaning cycles. Combining performance, safety, and environmental responsibility, supercritical CO₂ cleaning is an innovative solution perfectly aligned with the most stringent requirements of the medical device industry.

Our associated expertise

Sterile packaging

Benefit from our know-how to ensure optimal medical device packaging: Cleaning, assembly, preparation of kits, packaging and sterilization management.

Discover our expertise