The device was not returned to olympus medical systems corp.(omsc), but returned to olympus repair center for the evaluation.The evaluation of the device confirmed the followings; component analysis showed that the brown foreign matter was rust.Omsc guessed that the screw cover coming off was caused by deterioration of the adhesive to secure the screw cover due to chemical or physical stress.The rust may have been caused by corrosion of residues such as chemicals.If significant additional information is received, this report will be supplemented.
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