The catheter was connected to an arraylink and velocity system with wet lab.The catheter was validated and no functional anomalies were noted.The fly eye charts were good except for one bad electrode.The array catheter ifu, artmt100136324 rev.A states ¿catheters may be marketed and considered functional with up to 8 inactive electrodes.The investigation also confirmed the device was used past its expiration date.The array catheter ifu, artmt100136324 rev.A states ¿use prior to the ¿use before¿ date printed on the packaging label.¿ the device history record was reviewed to ensure that each manufacturing and inspection operation was performed.The cause of the reported signal issue remains unknown.The cause of the using the product past its expiration date is consistent with user error.
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