This supplemental report is being submitted to provide additional information based on the legal manufacturer's final investigation.The following fields were corrected based on information available at the time of the initial submission: e2, e3, g2 and h6 medical device problem.Since the device is more than 15 years old, the device history record was unable to be reviewed.However, olympus only releases products to market that meet all manufacturing specifications and final product release criteria.The device was returned to olympus for evaluation and the customer's allegation was confirmed.Based on the results of the investigation, a definitive root cause for the missing pressure cap could not be established, however it is likely due to incorrect reprocessing.The event can be detected and prevented by handling the device in accordance with the following sections of instruction for use: chapter 5 reprocessing: general policy.Chapter 6 compatible reprocessing methods and chemical agents.Chapter 7 cleaning, disinfection, and sterilization procedures.Olympus will continue to monitor field performance for this device.
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