Returned for evaluation was a 4f coaxial micro-introducer sheath.As received the returned sheath was in two pieces with a separation of the sheath tubing ~1.5cm distal from the hub.Scar 004842 and the returned sample were sent to the supplier, greatbatch for sample evaluation/root cause determination and dhr review of the reported lot.Per scar0 04842 response, dhr review did not reveal any discrepancies that would have contributed to this event.Visual analysis on the returned device revealed a mark/cut that was likely caused by a tool outside of coax package.No manufacturing non-conformance observed during evaluation of the returned device.The customer's reported complaint description is confirmed for sheath tubing detached; tubing was sliced (by sharps) with indications of being pulled to failure.Although the reported complaint description is confirmed, a definitive root cause for the event cannot be determined.A review of previously reported complaints and investigations for this failure mode for this sheath device revealed that a potential root cause is the tubing being nicked by sharp instrument (e.G.Scalpel) and then tubing pulled to failure during sheath removal (pulling on hub).A review of the device history records was performed for the indicated lots for any deviations related to the reported failure mode of the complaint.The review confirms that the lots met all material, assembly and performance specifications; i.E.No ncr associated with reported failure mode.Labeling review: the instructions for use which is supplied to the end user with this catalog number contains the following statements: intended use the micro access kit is used for percutaneous introduction of a guidewire or catheter into the vascular system following a small 21-gauge needle stick.Potential complications · perforation of a vessel or viscus · laceration of a vessel or viscus · embolism instructions for use 1.Gain percutaneous access with the 21 gauge needle.2.Advance the 0.018" guidewire through the 21 gauge needle.3.Withdraw the entry needle while leaving the 0.018" guidewire in place.4.Advance the micro-introducer over the 0.018" guidewire.5.Remove the 0.018" guidewire and the micro-introducer inner dilator.6.Advance up to a 0.038" guidewire or catheter through the micro introducer sheath.7.Remove micro-introducer sheath.A review of the device history records was performed for the indicated lots for any deviations related to the reported failure mode of the complaint. the review confirms that the lots met all material, assembly and performance specifications; i.E.No ncr associated with reported failure mode.(b)(4).
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