One bi-directional, curve d-f, sensor enabled, advisor hd grid mapping catheter was received for evaluation.Electrodes 1-2 read as open circuits.Conductor wires 1-2 had been fractured at the ring joint, consistent with the reported display issue and noise.In addition, the electrodes were displaced and the pellethane tubing was torn and corrugated.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed.The root cause of the fractured conductor wires, displaced electrodes, and torn and corrugated pellethane tubing remains unknown.
|