Hermetic lumbar catheter (ins5010) was not returned for evaluation after three good faith attempts (gfes) were made.Lot number information has not been provided; therefore, an evaluation of the device could not be performed, and device history record (dhr) could not be reviewed.Since the complaint is related to the health care professional (hcp) experience with the use of the device and not to a specific manufacturing defect, clinical affairs was consulted for additional support.The following information was provided: ¿the hcps should be experienced to perform this activity.Removal of the catheter should be performed with minimal force, and when resistance is encountered the patient should be placed in a flexed position to facilitate its removal.When hcps have difficulty with insertion there is a tendency to partially withdraw and then re-advance the catheter; the guidewire should never be withdrawn or turned through the tuohy needle after it has been inserted into the subarachnoid space.Once the weld on the guidewire breaks, the inner wire is separated from the outer wire and the outer wire will then be able to unwind whenever it encounters resistance upon removal.¿ therefore, based on clinical affairs evaluation and ifu warning, manipulation of catheter through the tuohy needle should be kept at minimum to avoid damaging the device; thus, guidewire removal should occur after tuohy needle has been removed.Therefore, the most probable root cause for the reported resistance is user technique related.If additional relevant information becomes available in the future, this complaint will be reopened, and the respective evaluation performed.Trends will be monitored for this and similar issues.At present, we consider this complaint to be closed.
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