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The product was returned to pentax medical for repair.Our technician checked the returned unit and confirmed that the cfb (coherent fiber bundle) broken.Based on the result, we concluded that it was caused due to the excessive force applied on the cfb (coherent fiber bundle).In addition, our technician confirmed that the control body fluid damage, the light guide cable for prong broken, the insertion flexible tube buckled, the control body corroded, the bending rubber missing, the distal body dirty, and the ocular dirty; 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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