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Zimmerbiomet complaint number (b)(4).One hex driver, short, standard (hx1.25) was returned for investigation.Visual evaluation of the as returned product identified that it was twisted and fractured at the tip.Functional testing to recreate the reported event could not be performed since the device was fractured.Pre-existing patient conditions, tooth location, implantation period, x-ray are irrelevant to this investigation.Picture image was not provided by the customer.Document reviewed: instructions for use - zimmer instrument kit system, zimmer dental single patient drills, driva drills, and tools, ifu 8874 rev 5 ¿ 08/19.Information identified: indications, warnings and precautions (pages 2 & 3).Per the applicable ifu, under the section (warnings), it is stated that improper technique could cause device failure.Additionally, under (precautions), surgical instruments are susceptible to damage and wear and should be inspected and cleaned before each use.Dhr review for the lot (2018041359) had revealed no deviations nor non-conformances which could have caused or contributed to the reported event.All products were conforming at the time they left zimmer biomet.Lot was inspected and passed all acceptance criteria by qa.Complaint history review was performed for the lot (2018041359) for similar events and no other complaint was identified.September post market trending was reviewed and there were no actionable trends or corrective actions for the reported event or device.Therefore, based on the available information, device malfunction did occur and the reported event was confirmed.
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