(b)(4).The actual device was not returned, therefore, an evaluation of the actual device was unable to be conducted.Review of the picture provided by the user found that, in the area near the inserter, the urethane coat had been separated with resultant exposure of the core wire.Reproductive testing was conducted with a factory-retained sample of the involved product code/lot.The test sample was hold with fingers at the distal end and pulled out from the holder tube while the wire clip was attached to the holder tube.As a result, the urethane coat was separated with resultant exposure of the core wire.A review of the device history record and the shipping inspection record of the involved product code/lot# combination was conducted with no findings.Ifu states: remove the wire clip from the holder.Holding the guidewire, push the guide wire in the direction of the inserter to take out the guidewire from the holder.Do not pull the guidewire toward where the wire clip was attached.It was likely that the actual product, when taken out from the holder tube, was exposed to a tensile load to the distal end; as a result, it is likely that the separation of the urethane coat occurred with resultant exposure of the core wire.With no actual sample available for evaluation, however, the cause of occurrence could not be determined.(b)(4).
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