The reported event of pacing issue was confirmed.Continuity test found that a full open condition of the distal circuit in y adapter.The proximal circuit was found to be continuous.No open or short condition was observed in the lead wires between just distal side of y adapter and the electrodes.Short condition was not detected in the circuit proximal of y adapter.No visible damage or abnormality was observed from catheter body, balloon, windings, and returned syringe.The balloon inflated clear and concentric and remained inflated for 5min without leakage.An engineering evaluation was initiated to assess for any manufacturing related processes which could be correlated to the complaint.A product risk assessment was previously generated to cover full open condition at y adapter failure for bipolar products.Corrections to the h6 codes type of investigations, investigation findings, and investigation conclusions were made.Complaint histories for all reported events are reviewed against trending control limits on a monthly basis and any excursions above the control limits are assessed and documented as a part of the monthly review.
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