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 identified no other incidents from this lot.It is possible that during stent deployment the thumb slide was not advanced and retracted a sufficient amount of times to fully deploy the stent and/or the distal sheath of the delivery system was entrapped or bent/kinked in the anatomy such that the ratchet was unable to properly engage the stent resulting in reported deployment failure; however, this could not be confirmed.The investigation determined a conclusive cause for the reported/noted difficulties cannot be determined.There is no indication of a product quality issue with respect to manufacture, design or labeling.Na.
|