Please see updated sections: g4, g7, h2, h3, h6 and h10.The device history records for this device were reviewed and all records indicated that the product was manufactured according to all applicable procedures and met final product release criteria.No abnormalities were found.The cause of the event cannot be conclusively determined.Based on investigation results, it was confirmed the device worked normally after changing detergent therefore, the user may have used detergent other than olympus recommended or quality of tap water may have changed temporally, which made the detergent more foamy than usual.Ifu(instructions for use) states: always use an olympus-validated detergent.Otherwise, the endoscope may not be properly cleaned and as a result, the endoscope may not achieve high-level disinfection.Olympus will continue to monitor complaints for this device.
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