Qn# (b)(4).A device history record review was performed on the epidural catheter and needle with no relevant findings.The customer reported the catheter was difficult to remove from the patient.The customer returned one epidural catheter and lidstock for investigation (reference files inp1900065270).The returned catheter was visually examined with and without magnification.Visual examination of the returned catheter revealed part of the distal tip appears to be missing (reference files anp1900065270).The catheter appears to have been used as biological material can be seen on the inner coil wire.No other defects or anomalies were observed.A dimensional inspection was performed on the returned catheter using a ruler (ga-ln-0560-003).The returned catheter extrusion measures approximately 91.6cm.The extrusion and coils may be slightly stretched , and this is why the catheter is beyond outside of the specification of 88.5-91.5 cm per graphic kz-05400-002 rev.09.The outer diameter (od) of the returned catheter measured 1.03mm (caliper c05155) which is within the specification of a maximum of 1.115mm per graphic kz-05400-002; rev 9.Although, part of the distal tip was missing, an attempt to thread the returned epidural catheter was made.The distal end of the catheter would thread through a lab inventory 17ga needle with no resistance met.A drag test was performed per pip-013, rev.3 using the returned catheter, a lab inventory needle and weight (c05406).The catheter passed the drag test with the lab inventory needle.Specifications per graphic kz-05400-002 rev.9 were reviewed as a part of this complaint investigation.The ifu for this kit, e-17019-109a; rev.07, was reviewed as a part of this complaint investigation.The ifu warns the end user, "never advance catheter more than 5 cm beyond the needle tip.Advancing catheter more than 5 cm increases the likelihood of catheter-related complications." the ifu warns the user, "never tug or quickly pull on catheter during removal from patient to reduce risk of catheter breakage.Do not apply additional tension on the catheter if catheter begins to stretch excessively.Reposition patient to open the vertebral interspaces and re-attempt removal if resistance is encountered or if catheter stretches excessively during removal." the reported complaint of the catheter being difficult to remove was confirmed based upon the sample received.Microscopic examination revealed part of the distal tip was missing.The returned epidural catheter could be thread through a 17ga lab inventory needle with no resistance met.The returned catheter also passed a functional drag test, and the returned catheter od was found to be within specification.A device history record review was performed on the epidural catheter and needle with no relevant findings.The catheter is an interactive part.Therefore, based upon the condition of the sample received and the observed evidence of the part of the distal tip missing, operational context caused or contributed to this event.
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