Qn#(b)(4).No lot number was provided.A device history record review was performed based upon a lot number from sales history data.A device history record review was performed on the epidural catheter with no relevant findings.The ifu for this kit, c-05000-135a; rev.02, was reviewed as a part of this complaint investigation.The ifu warns the end user, "never advance catheter more than 5 cm.Advancing catheter more than 5 cm increases likelihood of catheter tip being placed into anterolateral portion of epidural space and increases potential for catheter knotting." the ifu also warns the user, "never tug or quickly pull on catheter during removal from patient to minimize the risk of catheter breakage.If excess resistance is encountered, stop, remove both needle and catheter as a unit, and attempt new puncture.During catheter removal, if resistance is encountered or if catheter stretches excessively, stop, reposition patient to open vertebral interspaces (the force required to remove an epidural catheter can vary depending on patient positioning1), and re-attempt removal.Under no circumstance should extreme force be applied to the catheter during removal." the ifu also cautions the user "to minimize the risk of shearing catheter, never withdraw catheter back against needle bevel." a corrective action is not required at this time as a potential root cause could not be determined based upon the information provided and without a sample.Complaint verification testing could not be performed as no sample was returned for analysis.A device history record review was performed based upon a lot number from sales history data.A device history record review was performed on the epidural catheter with no evidence to suggest a manufacturing related cause.Therefore, the potential cause of the catheter shearing could not be determined based upon the information provided and without a sample.
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