We checked the returned unit and confirmed that the operation channel clogged.Based on the result, we concluded that it was caused due to the insufficient reprocessing at the facility.In addition, we confirmed that the light guide cable buckled, and the insertion flexible tube (ift) stuck accessory on the exterior; 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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