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(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).The device was not returned for analysis.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 of the reported lot revealed no similar incidents.The omnilink elite instructions for use (ifu) states, do not attempt to pull an unexpanded stent back through the introducer sheath / guiding catheter; dislodgment of the stent from the balloon may occur.The investigation was unable to determine a conclusive cause for the reported resistance with the introducer sheath.It may be possible that the sheaths used were not the appropriate inner diameter (id); however, the omnilink elite and sheath were not returned for analysis.Therefore, the exact inner diameter is unknown.In this case, the resistance with the sheath was the likely cause for the dislodgment.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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