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This supplemental report is being submitted to provide the results of 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.It has been over 11 years since the subject device was manufactured.The device was returned to olympus for inspection, and the customer's allegation was confirmed.Based on the results of the investigation, it is assumed that the damage of the insulation material of the sheath was caused by improper handling, application of excessive force, mechanical impact like fall, shock or similar stress, thermal mechanical overload.Please note that signs of fatigue or pre-damage, such as minute cracks, are often hard to spot.Additional information: based on the described damage pattern, it can be assumed the insulation tip's damage was caused by mechanical thermal influence.Unfortunately, it cannot be determined with certainty, whether there was a previous damage on the device or any damage on the ceramic insulating insert was caused during last reprocessing or during last usage.The event can be detected/prevented by following the instructions for use: the investigator also refers to the chapter 4.1 ¿inspection and testing¿ of the instructions for use (ifu) regarding the proper reprocessing of the affected device.Prior to using medical devices, please ensure they are in perfect technical condition.See also the warnings in the instructions for use (ifu).4 before use warning infection control risk: properly reprocess the product before first and each subsequent use following the instructions in this manual and in the system guide endoscopy.Improper and/or incomplete reprocessing can cause infection of the patient and/or medical personnel.4.1 inspection and testing inspecting the product: visually inspect the product.Make sure that it has: -- no corrosion -- no dents -- no scratches ceramic insulation at distal end: visually inspect the ceramic insulation at the sheath¿s distal end before each use.Do not use the instrument in case of damage (e.G cracks, fractures).Warning risk of injury: impact, fall, shock or similar stress can damage the ceramic insulation at the sheath¿s distal end.Damaged instruments can cause injuries to the patient and/or user.Do not use the instrument if damaged.Damaged product: if the product is damaged or does not function properly, contact an olympus representative or an authorised service centre.Three attempts were performed to obtain additional information, but no response was received from the customer.Olympus will continue to monitor field performance for this device.
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