Visual, dimensional, and functional inspections were performed on the returned device, however, the reported inflation issues were unable to be confirmed.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 reported from this lot.Factors that may contribute to difficulty inflating or incomplete inflation of the device may include, but are not limited to, damage to the device, contamination in the inflation lumen, patient anatomical morphology, patient disease state, inflation/deflation technique, contrast dilution, inadequate connection to the inflation device, and/or accessory device support.Design and manufacturing controls have been established to mitigate possible causes.The investigation was unable to determine a conclusive cause for the reported inflation issues.In this case, it is possible that the moderately calcified and tortuous anatomy restricted contrast flow resulting in the incomplete inflation; however, this could not be confirmed.The noted damaged on the balloon catheter likely occurred during packing for returned analysis as there were no reports of damage to the balloon catheter.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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