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H11:section a through f - the information provided by bd represents all of the known information at this time.Despite good faith efforts to obtain additional information, the complainant / reporter was unable or unwilling to provide any further patient, product, or procedural details to bd.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 stylet break is confirmed but the exact cause is unknown.One 4 fr sl groshong nxt catheter and tls stylet were returned for investigation.The stylet was returned outside of the catheter.A distal segment of the stylet was broken off and measured to be 5.2 cm in length.The section proximal to the break location was kinked and deformed.Microscopic observation revealed the polyimide tubing to be kinked in between magnet location.A section in the main length of the polyimide tubing was compressed with the magnets pushed outwards from the compressed region.The break surfaces appeared to be smooth and slightly oval shaped.The polyimide tubing wall thickness was measured and found to be within manufacturing specification.The event description indicates the tls stylet was tested prior to use which indicates that unintended handling may have been a contributing factor.Since the stylet was observed to be frayed and deformed, the complaint is confirmed.A lot history review (lhr) of recw1331 showed no other similar product complaint(s) from this lot number.
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