Qn# (b)(4).The customer returned one 3-lumen cvc for evaluation.Signs of use in the form of biological material were present in the medial extension line.Visual examination did not reveal any defects or anomalies.The extension lines did not contain any kinks or deformations.The instructions-for-use (ifu) provided with this kit instructs the user, "flush lumen(s) to completely clear blood from catheter." all three lumens were flushed using a water-filled lab inventory syringe.Resistance was encountered when flushing the medial and proximal lines.Some biological material came out the distal end of the catheter, but the lines were not able to be fully flushed.A lab inventory wire was inserted through both the medial and proximal lines and a significant amount of biological material was cleared from the lines.Again, the lines were flushed and this time all three functioned as expected.A lab inventory guide wire was able to pass through the returned catheter with minimal resistance after the biological material was cleared from the lines.A device history record review was performed with no relevant findings.The instructions-for-use (ifu) provided with this kit instructs the user, "flush lumen(s) to completely clear blood from catheter." the customer report of blocked lumens was confirmed by complaint investigation of the returned sample.Both the medial and proximal lumens contained a significant amount of biological material which caused a blockage.Once cleared, the catheter functioned as intended.A device history record review was performed with no relevant findings.Based on the condition of the sample received, unintentional user error likely caused or contributed to this event.Teleflex will continue to monitor and trend for complaints of this nature.
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