We checked the returned unit and confirmed that the balloon feeder/return tube clogged.Based on the result, we concluded that it was caused due to the insufficient reprocessing at the facility on the balloon feeder/return tube.In addition, we confirmed that the ccd/us probe unit broken, the insertion flexible tube (ift) buckled, the light guide cable buckled, the electrical connector corroded, the remote control buttons cut, the objective prism dirty, and the us connector cable worn out; however, they are not the main cause, and/or irrelevant to the alleged complaint.Based on the technical report ""hr-rpt-0630 (air/water & jet water channels)"" and/or the risk analysis results, it was evaluated to submit mdr.
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