We checked the returned unit and confirmed that the operation channel blocked.Based on the result, we concluded that it was caused due to the insufficient reprocessing at the facility.In addition, we confirmed that the insertion flexible tube (ift) buckled, the light guide cable buckled, the light guide cable for control body buckled, the distal body worn out, the light guide cable bump, and the insertion flexible tube (ift) dented; however, they 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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