(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).Visual inspection was performed on the returned device.The dislodged stent was confirmed.The loose stent was not confirmed as the stent was off the balloon.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history of the reported revealed no other incidents.The investigation was unable to determine a conclusive cause for the reported loose balloon and dislodgment.Based on the information reviewed, there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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