(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The device was not returned for analysis.The investigation was unable to determine a conclusive cause for the reported difficulties inserting the sds however the stent damage and dislodgement 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 that would have contributed to this event.Additionally, a review of the complaint history identified no other similar incidents reported from this lot.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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It was reported that during a coronary procedure, the 2.5 x 18 mm xience alpine stent delivery system was inserted into the non-abbott hemostasis valve and resistance was noted.The stent delivery system was removed without resistance; however, it was noted that the stent was not on the delivery system balloon.The dislodged stent remained on the guide wire, inside the hemostasis valve.The guide wire and stent were removed without difficulty and the stent was noted to be crushed on the guide wire.A second same size xience alpine was used without issue.There was no adverse patient effect and no clinically significant delay.No additional information was provided.
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