Investigation summary: one sample was submitted for quality investigation.The customer complaint of foreign matter was verified by visual inspection.Evaluation of the drip chamber revealed pieces of foreign matter embedded in body of the drip chamber.A device history record review for model 47177e lot number 21019569 was performed.The search showed that a total of (b)(4) units in 1 lot number was built on 22jan2021.There were no quality notifications issued for the failure mode reported by the customer during the production build of this set.The root cause of the issue seen in this complaint is related a manufacturing issue.A similar issue, seen in previous investigations, have found that this foreign matter embedded in the drip chamber body is a result directly related to the supplier molding process.This incident has been added to our database of reported incidents.
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