The following were reviewed as part of this investigation: patient severity, frequency analysis, applicable previous investigation(s), sample (if available), applicable fmea documents, labeling, and applicable manufacture records.Based on a review of this information, the following was concluded: the complaint of a damaged guidewire is confirmed; however, the exact cause is unknown.One 0.018 in.Guidewire in a plastic hoop, one 21 g introducer needle, one 4.5 fr introducer, and one scalpel were returned for evaluation.An initial visual observation showed no use residue on the returned samples.The core wire appeared to remain intact.A microscopic observation revealed one of the coils at the proximal tip of the guidewire was disjointed but connected to the weld tip.Some use residue was observed on the distal tip of the introducer needle.While the exact cause of the damage observed in the returned guidewire is unknown, possible causes include damage during manufacturing, packaging, handling, or use.A lot history review (lhr) of rebx1691 showed two other similar product complaint(s) from this lot number.The complaints for this lot number (rebx1691) have been reported from the same facility in taiwan.
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