The device was not returned for analysis.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other incidents/complaints from this lot.The investigation was unable to determine a conclusive cause for the reported poor visibility of tip marker.Factors that may contribute to poor visibility of tip marker include, but are not limited to, coil size, coil material properties, solder length, solder material, interaction accessory devices, imaging technique, or damage to the guide wire.In this case, a visual and functional inspection was performed on one unused/sterile unit returned from the same part and lot number.The inspection found no abnormalities or damage to the guide wire.This indicated a product quality issue did not contribute to the reported issue.Based on the information provided and because the device was not returned for analysis, it is unknown what may have caused the reported poor visibility of tip marker.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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