Evaluation summary: we checked the returned unit and confirmed that the insertion flexible tube (ift) collapse.Based on the result, we concluded that it was caused due to the excessive force applied on the insertion flexible tube (ift).In addition, we confirmed that the light guide cable worn out; however, it is not related to the alleged complaint.Based on the technical report, it was evaluated not to submit mdr.Correction information: g6: follow up #1.H6: coding changed based on the investigation result.
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