Visual analysis was performed on the returned device.The reported connection problem was unable to be confirmed due to the condition of the returned unit.The material separation was confirmed as the nitinol tube was separated and the device was returned into two pieces.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 complaints reported from this lot.The investigation was unable to determine a cause for the reported difficulties.It may be possible that the optical connector on the dragonfly catheter was not properly aligned with the drive-motor optical controller (doc) during insertion resulting in difficulty locking and when ejected, the inner shell remained connected to the doc as the outer shell was pulled out causing the nitinol tube to fracture.However, this could not be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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