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The customer reported the tubing will occlude and the drip chamber will not drip unless you flick it or bang it on the table, and returned one unused representative sample of material 10010903, lot 25019224.Upon initial visual examination, the set had no defects or abnormalities.The set was infused with water, and no occlusion or dripping issues were found.The complaint of having to be aggressive with the tubing to get it to drip could not be replicated.The root cause for the flow issues could not be traced to any manufacturing problem.The root cause is potentially related to clinical use, and a member of our clinical team has reached out about the issue.A device history record review was performed.There were no quality notifications issued for the failure mode reported by the customer during the production build of this set.
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