The product was returned to pentax medical for repair.Our technician checked the returned unit and confirmed that the operation channel (primary) blocked.Based on the result, we concluded that it was caused due to the inadequate/insufficient reprocessing at the facility on the operation channel (primary).In addition, our technician confirmed that the insertion flexible tube crushed, the deflector washing socket deformed, the insertion flexible tube leak, and the insertion flexible tube attaching nut loose; however, these defects are not the main cause, and/or irrelevant to the alleged complaint.Based on the technical report ""hr-rpt-0588(channel)"" and/or the risk analysis results, it was evaluated to submit mdr.
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