The product was returned to pentax medical for repair.Our technician checked the returned unit and confirmed that the cfb (coherent fiber bundle) fluid damage.Based on the result, we concluded that it was caused due to the fluid damage from the cfb (coherent fiber bundle).In addition, our technician confirmed that the insertion flexible tube perforated, the insertion flexible tube buckled, and the insertion flexible tube crushed; however, these defects are not the main cause, and/or irrelevant to the alleged complaint.Based on the technical report ""hr-rpt-0586(image failure)"" and/or the risk analysis results, it was evaluated to submit mdr.
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