Many different ways are used to sterilize Medical Devices like usage of moist heat (steam), dry heat, radiation, ethylene oxide gas, vaporized hydrogen peroxide, and other sterilization methods for instance, chlorine dioxide gas, vaporized peracetic acid, and nitrogen dioxide) Ethylene Oxide(EO) Sterilization is widely used for Medical Devices as it is consider to be safe for the Devices and does not damage it during the process of the Sterilization.
Since Medical devices are made up of Polymers like the metal metals, glass, or multiple layers of packaging are used for the same, it is preferred to be sterilized with ethylene oxide