The following were reviewed as part of this investigation: patient severity, applicable previous investigation(s), sample analysis, applicable fmea documents, applicable manufacturing records, and labeling.Based on a review of this information, the following was concluded: the complaint of a damaged guidewire is confirmed but the exact cause is unknown.One guidewire within its hoop, one microez microintroducer, and two needles were returned for evaluation.The tip of the guidewire was observed to have a slight deformation near the distal end.Microscopic observation of the deformed revealed the coils to be misaligned near the distal weld tip.Dried, red residue appears to be present on the device.The deformed coils appear to be compressed and twisted out of alignment.Based on the information provided, possible contributing factors include instrument damage and damage during handling.Since the guidewire was observed to be damaged, the complaint is confirmed but the exact cause remains unknown.A lot history review (lhr) of redu4200 showed two other similar product complaint(s) from this lot number.
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It was reported that protruding burrs were found with the tip of the guide wire, which resulted in the failure of the guide wire to insert into the introducer sheath.In addition, multiple mst introducer sheaths were found naturally bent after their packages were opened.On (b)(6) 2021- the coils of the returned guidewire are misaligned near the distal weld tip.
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