Felmeddelande

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Different methods of sterilization

We ensure the sterilization of the most common commercially available methods and can of course also arrange the necessary validations to achieve sterility as defined in the Medical Devices Directive. We work with several sterilization plants in Europe depending on the need of our customer. Various processes are suitable for different materials and packaging configurations. Please consult us at an early stage of product development to obtain the best result.

Beta Radiation

Beta rays are electronically generated electrons that are accelerated into high speed. The penetration of the material is restricted and that is why the method is mainly used for low density products. The process is fast and is therefore well suited for large volumes. It may however result in discoloration of glass and plastics. During the irradiation process there is some heating issues of the material to consider. The size of the outer packaging is limited by the radiation penetration capability.

Gamma irradiation

Gamma radiation is a radioactive particle radiation emanates from an isotope, Cobalt 60, and consists of the quantum of energy, called photons. The penetration of the material is very high so the method is also suitable for heavy products and products containing much metal. It also works well for liquids. Even very large packages can be processed, with the limitation of the facility's technical capabilities. It may result in discoloration of glass and plastics.

Gas sterilization ETO (Ethylene Oxide)

The method uses a closed chamber with vacuum, exposing the material to be sterilized to moisture, heat and ethylene oxide. The sterilization is done by the gas bound in the moisture in the cells and prevents reproduction. The method is cost effective in large volumes of the same product. It is suitable for the sterilization of products containing non radiation resistant material, such as Teflon.