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# FDA Clears EOGas 4 Ethylene Oxide Gas Sterilizer
- URL: https://www.fdaweb.com/fda-clears-eogas-4-ethylene-oxide-gas-sterilizer/
- Published: 2020-11-19T12:00:00.000Z
- Updated: 2026-09-14T16:37:02.000Z
- Author: David McFarland
- Tags: Devices, #legacy-id-D5148133

FDA has cleared an Andersen Sterilizer 510(k) for its EOGas 4 Ethylene Oxide Gas Sterilizer and associated accessories for sterilizing duodenoscopes and colonoscopes. The device is labeled for sterilizing reusable medical devices that are sensitive to moisture, heat, corrosion or radiation, the company says. It was originally cleared in 2015 for surface sterilization use in a wide-range of instruments and for sterilization of endoscopes less than 1,100 mm in working length (bronchoscopes, bronchovideoscopes, cystoscopes, ureteroscopes, choledocoscopes, and gastroscopes). The new clearance is for endoscopes with greater than 1,100 mm working length (duodenoscopes and colonoscopes) with a maximum lumen length of 3,530 mm (11.6 feet) and minimum lumen diameter of 1.2 mm.