The product was returned to pentax medical for repair.Our technician checked the returned unit and confirmed that the biopsy inlet t-piece broken accessory blocking inside biopsy t-piece.Based on the result, we concluded that it was caused due to the excessive force applied on the biopsy inlet t-piece.In addition, our technician confirmed that the light guide cable for control body buckled, the lg connector corroded, the distal body worn out, and the operation channel (primary) stuck accessory/object; however, these defects 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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