(b)(4).The device was returned for analysis.The stent dislodgement was unable to be confirmed.The difficult to insert/remove the device could not be replicated in a testing environment due to the condition of the returned device.Based on a visual and dimensional inspection of the returned device, there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.The investigation determined the reported difficulties appear to be related to circumstances of the procedure.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot.Additionally, a review of the complaint history of the reported lot did not indicate a lot specific quality issue.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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