This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the investigation, the probable causes for a cracked lid include: the lid contacting with a scope when it was closed, an external impact to the lid and/or a chemical crack due to adhered chemical solution which was not removed.Design of the device or manufacturing cannot be confirmed as factors to cause the event.The most probable cause for the reported event is user handling.The instructions for use have the following statement which can detect the event: "before using the equipment, always check that there is no irregularity regarding the following points on the lid and the lid packing.If there is any irregularity, cleaning fluid or disinfectant solution may leak out.The lid is not cracked, broken, or otherwise damaged.".
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