(b)(4).The reported event is confirmed.Products were returned; therefore, the visual inspection determined that the outer cavity is sealed and an inner cavity, tyvek & screw were missing from the sealed cavity.Device history record (dhr) was reviewed and no discrepancies were found.Root cause was determined to be a manufacturing issue.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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