The reported event of pacing issue was confirmed.Continuity testing found that the distal lead wire had an intermittent condition around the electrode, when flexing the tip area of the catheter.Proximal circuit was continuous without any intermittent or open condition.No short condition was observed between the proximal and distal lead wires.A cut down was performed to isolate the intermittent condition and the intermittent condition was found to be at distal lead wire tip.The balloon inflated clear and concentric and remained inflated for 5 min.Without leakage.No visible damage was observed from windings, balloon, catheter body, and returned syringe.Further evaluation regarding supplier related quality issues is under investigation.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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