(b)(4).Evaluation summary: (b)(4).The device was returned for analysis.The stent damage was able to be confirmed.Additionally, the guide wire exit notch was torn and lifted from the shaft for a length of 2mm.The difficult to position 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 that would have contributed to this event.Additionally, a review of the complaint history identified no other similar incidents reported from this lot.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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