Investigation results: no samples were received for investigation of (b)(4), in which the customer has stated: ¿the connector fills up with blood, requiring a larger volume of solution to wash the access than usual¿.The product in use at the time is reported to be a mz1000-br from lot 22105519.No additional information was available to assist the investigation in this instance.The details of this feedback were forwarded to the manufacturing site for investigation, where a review of the production records for lot 22105519 did not identify any in-process testing failures or quality deviations which may have caused or contributed to a report of this nature.The root cause of the customer¿s experience could not be determined in this instance as no sample was received for investigation.Without a sample to examine it is not possible to determine whether a manufacturing defect could have caused or contributed to a report of this nature.In this instance, without the complaint sample to examine it has not been possible to conclusively link this feedback to a specific failure mode; however, a review of the customer feedback database indicates that this is a rare occurrence with a small number of similar reports against the mz1000-br products in the past 12 months.
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