Review of manufacturing records, relevant to the lot reported, found no discrepancies or anomalies.One flat filter was returned.As a result of observing the flat filter, it was confirmed that the female connector was deformed into an ellipse and the connector could not be connected at all.This event may have been deformed during the filter manufacturing process at the supplier, but the cause and timing of the occurrence could not be identified.The reported event was confirmed.The root cause was not identified.The manufacturing department will be notified of the occurrence of this event.The event will be recorded in the database and monitored for future occurrence situation.The supplier was also notified of this event.Review of manufacturing records, relevant to the lot reported, found no discrepancies or anomalies.This remediation mdr was generated under protocol b10009406, as a result of warning letter cms# (b)(4).
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