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, 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 losing the internal ecg signal could not be verified outside the clinical setting and with the condition of the item returned for investigation.One 3cg stylet was returned for investigation.The stylet had been removed from the catheter and was received with the t-lock extension set attached to the wire.The stylet was kinked at the proximal end of the septum on the t-lock extension set.A microscopic examination revealed the presence of conductive epoxy at the distal end of the stylet.The core wire was continuous through the polyimide tubing.Evidence of a kink was observed in the polyimide tubing 2.1cm from the distal tip of the stylet.It could not be determined if this kink affected the signal during use.A continuity and resistance test revealed that the product was within specification.Complications associated with the clinical setting that cannot be replicated in the lab may have affected the functional performance of the device.It is unknown if there was poor continuity with the electrodes and their connections.The gray fin with red and black lead wires was not returned for investigation.Since the reported event could not be verified on the returned sample, the complaint was inconclusive and the cause of the alleged problem could not be determined.H3 other text : evaluation findings are in section h.11.
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