One imp,tsv,4.1mm,dual sel,ha (tsv4h11) was returned for investigation (image 1-4).Visual inspection of the as returned product identified signs of wear from use about the implant threads.The implant is noted not to have been used in a patient.Functional testing of the returned device notes that the square engagement outer drive feature functions as intended with a mating ratchet wrench (functional testing 1).Likewise, the internal hex drive feature of the implant and mount function as intended with a mating square engagement driver (functional testing 2-3).Appropriate documentation was reviewed.Dhr review could not be performed, as the lot number associated with the reported product is not available.Zimmer biomet quality management system (qms) has controls in place to ensure the distribution of conforming product within specifications.A complaint history review could not be performed without relevant item and lot information.Based on the available information, device malfunction has not occurred and the reported event as it relates to the returned implant was unconfirmed following functional testing.Functionality of the handpiece driver could not be verified with the information provided.The following sections have been updated: g7: checked "follow-up"; h2: checked follow-up type; h3: changed "no" to "yes"; h6: entered evaluation codes.
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