This supplemental report is being submitted to provide the results of the legal manufacturer's final investigation.Additional information added to field h3, h6.E2 was marked unintentionally in the supplemental medwatch, kindly disregard.A review of the device history record found no deviations that could have caused or contributed to the reported issue.It has been over 04 years since the subject device was manufactured.Based on the results of the investigation, a definite root cause that led to the malfunction could not be identified.However, it is likely the following led to the malfunction thermo-mechanical fatigue, wear and tear and improper handling (impact, shock).The cracks on the insulation material are mostly not visible, made visual inspection difficult.The event can be inspected by following the instructions for use which state: chapter 4: ¿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 authorized service center.¿ olympus will continue to monitor field performance for this device.
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