Investigation results: five 20039e samples were received for investigation with two empty 20039e packages from lot 23015182; some residual fluid was observed in the returned samples.A visual inspection of the returned samples did not identify any product defects or manufacturing issues which could have caused or contributed to the customer's experience.The returned samples were subjected to functional testing by priming and subjecting to an infusion using a 50ml bd plastipak syringe; in each instance, no flow restriction or occlusion was observed throughout testing.The details of this feedback were forwarded to the manufacturing site for investigation.A review of the production records for lot 23015182 did not identify any in-process testing failures or quality deviations which may have resulted in a report of this nature.In this instance, a definitive root cause could not be identified as testing of the returned samples did not identify any product defects or quality deviation that could have contributed to the customer¿s experience.Please note, previous complaints for occlusions have been related to features on the surface of the male luer of the connecting products.These features include flash or a raised edge to the tip of the male luer which have previously been shown to intermittently lead to restricted flow due to them pinching the blue piston of the smartsite® and not allowing it to open.This can sometimes be resolved by disconnecting and reattaching the same luer connection which may reposition the luer against the piston and improve the flow, or alternatively by changing the connecting male luer.A review of the customer feedback database indicates that this is a rare occurrence with a small number of similar reports against the 20039e set in the past 12 months.
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