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The customer reported control syringe coming disconnected from manifold, and additional information stated the control syringe started to back off the manifold during setup; no patient involvement, impact, serious injury, medical intervention, or follow-up care was reported.A used sample was returned for evaluation; visual evaluation did not reveal any defects, and the syringe and manifold were connected and used to attempt a replication of the same defect the customer experienced.In each of the three connection attempts, the syringes backed off/rolled free of the manifold connection, thereby replicating the reported defect, and the customer complaint was confirmed with the returned samples.Root cause investigation determined excess silicone from the rotating adapter swage machine migrated onto the syringe luer, and the combination of excess silicone on the luer with saline in the syringe reduced the friction fit of the luer lock enough to cause the syringe/manifold connection to disconnect during use.There were no reports of death, serious injury, medical intervention, or follow up care.It has been determined that the reported event could cause or contribute to serious injury if it were to occur again.In an abundance of caution, this is a reportable event.If additional information becomes available this report will be reopened and reevaluated.This medical device report (mdr) is being submitted as part of retrospective review activities, which include review of historical data in accordance with regulations at 21 cfr part 803.The information included in this mdr reflects the information reasonably known to the manufacturer at the time of this retrospective review and submission.
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