It was reported that a supera stent was implanted in the moderately calcified, superficial femoral artery lesion without issue.An armada dilatation catheter advanced to lesion for post dilatation.During inflation attempts, the armada balloon failed to inflate.The armada balloon appeared to have a twist or malformation in the middle of the balloon.Multiple inflation attempts were made in different areas unsuccessfully.The device was removed without issue.There were no adverse patient effects and there was no clinically significant delay.There was no additional information provided.
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(b)(4).Evaluation summary: visual and functional inspections were performed on the returned device.The balloon inflated and held pressure with no anomalies noted; thus, the reported inflation difficulty was not confirmed.The reported balloon twist was confirmed.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history identified no other incidents from this lot.The investigation was unable to determine a conclusive cause for the reported difficulties.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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