The following were reviewed as part of this investigation: patient severity, complaint and lot history review, applicable previous investigation(s), sample (if available), labeling, applicable manufacture records, and applicable fmea documents.Based on a review of this information, the following was concluded: the complaint of a damaged microintroducer is confirmed; however, the exact cause is unknown.One 3.5 fr x 7 cm microintroducer was returned for evaluation.An initial visual observation showed use residue on the returned sample.The distal tip of the sheath was observed to be damaged and an approximately 1 cm length of the sheath was observed to be buckled about 1 cm proximal to the sheath tip.The distal end of the dilator was observed to be bent.A microscopic observation revealed the distal tip of the introducer sheath was damaged and plastically deformed in multiple locations around its circumference.One edge of the tip of the introducer sheath was observed to be folded inward and over itself, and another edge of the tip was observed to be buckled.While the root cause of the damage observed on the introducer sheath is unknown, possible causes include damage during handling or use.A lot history review (lhr) of reep4196 showed no other similar product complaint(s) from this lot number.
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