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(b)(4).Visual, dimensional, and functional inspection was performed on the returned device.The damaged stent and difficulty removing was confirmed.The failure to advance was unable to replicate in a testing environment.The investigation determined that the reported difficulties were due to case circumstances.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.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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