Visual and functional analysis was performed on the returned device.The reported difficulty removing was unable to be confirmed.Once the unknown guidewire was removed, a proxy 0.014-inch guide wire was backloaded through the minirail with no resistance noted.There was no issue with removal, as reported.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 revealed no other similar complaints reported from this lot.4 sterile/unused devices from the same lot (9163068) were also received with the used complaint device.All 4 returned sterile dragonfly opstar imaging catheters were visually, dimensionally, and functionally tested with no anomalies noted.The investigation determined that the reported difficulties were likely due to procedural circumstances.Based on the evaluation of the returned unit, it is likely that during use, the clearance between the guidewire and rx minirail of the dragonfly opstar was reduced causing friction between the devices resulting in difficulty removing.Additionally, there were noted bends and offset coils visible on the unknown guide wire which likely contributed to the difficulty.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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