We checked the returned unit and confirmed that the biopsy inlet t-piece clogged.Based on the result, we concluded that it was caused due to the insufficient reprocessing at the facility on the biopsy inlet t-piece.In addition, we confirmed that the lcb distal cover glass fluid damage, the light guide cable coating damage, the insertion flexible tube (ift) perforated, the suction cylinder control body clogged, the suction arm clogged, and the biopsy inlet piece dirty; however, they are not the main cause, and/or irrelevant to the alleged complaint.Based on the technical report "and/or the risk analysis results, it was evaluated to submit mdr.
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