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(b)(4).Internal file number - (b)(4): during processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).Evaluation summary: a visual and dimensional inspection was performed on the returned device.The reported stent dislodgement was confirmed.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 similar incidents from this lot.The multi-link vision rapid exchange (rx) instructions for use (ifu) instructs to prepare the device by expelling all air from the device prior to use and to verify that the stent does not extend beyond the radiopaque balloon markers.Do not use if any defects are noted.The ifu deviations do not appear to have directly caused or contributed to the reported stent dislodgement.The investigation determined that the reported stent dislodgement appears to be related to circumstances of the procedure and there is no indication of a product quality issue with respect to the design, manufacture or labeling of the device.
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