(b)(6).Date of event: unknown.The date received by manufacturer has been used for this field.Investigation summary: 1 sample was returned for the investigation of this complaint.Visual inspection, (b)(4) fitting inspection and luer taper measurement were conducted on the returned sample.The sample passed the acceptance criteria.Unconfirmed: bd was not able to duplicate or confirm the customer¿s indicated failure mode.Dhr review: no device history record was reviewed as the batch number is unknown.Investigation conclusion: visual inspection, (b)(4) fitting inspection and luer taper measurement were conducted on the returned sample.The sample passed the acceptance criteria.Root cause description: visual inspection, (b)(4) fitting inspection and luer taper measurement were conducted on the returned sample.The sample passed the acceptance criteria.The probable root cause could be due lubricant migration to cannula hub which occur with age.The lubrication lowers the friction of interference fit between the luer taper and sarstedt adaptor and hence resulted in the disconnection.There is a capa (capa# (b)(4)) initiated for luer disconnection, but there is no information provided on the batch to determine if this batch is produce before or after the capa action implementation date.
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