The device was returned to the service center for evaluation.The customer¿s complaint of a ¿ black piece peeled off¿ was confirmed.A visual inspection was performed on the returned device and found damage to the scope.An olympus boroscope was used to inspect the instrument channel and found scratch marks inside the channel from the bending section side.The distal end was inspected and noted that the bending section cover glue was cracked and partial peeled off.Based on the evaluation, the cause of the scratches inside the channel and the partially damaged bending section cover glue is due to mishandling.The cyf-vh instruction manual states ¿inspect the external surface of the entire insertion section, including the bending section and the distal end for dents, bulges, swelling, scratches, peeling of coating, holes, sagging, transformation, bends, adhesion of foreign bodies, missing parts, protruding objects, or other irregularities.¿.
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