Visual, functional, and dimensional analysis was performed on the returned device.The reported difficult to flush was unable to be confirmed as the device was able to be purged, however, a leak was found 28cm from the distal tip.The dimensional analysis confirmed that the inner diameter of the purge hole was within specification.The visual observation revealed that the catheter shaft material appeared to be expanded outward longitudinally, 28cm proximal to the distal tip, for a length of 4mm.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 indication of a lot specific product quality issue.Based on the reported information and analysis of the returned unit, the cause of the reported difficulty to flush could not be determined.It is likely that the fluid leaking from the damage found on the shaft material was due to a rupture from the increased pressure used to purge the device.The noted the longitudinally outward expansion (ballooning) were determined to be a potential product quality issue; therefore, an exception was initiated to further evaluate this complaint.
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