The reported event could be confirmed, since the product was returned for evaluation and matches the alleged failure mode.The device inspection revealed the following: the front end or tip of the received driver is broken and the microscopic image of the fracture site indicates it primarily to be torsional overload fracture along with secondary fatigue indicated by lines of rest.The hook of the depth gage is also bent due to excessive bending force.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.No indications of material, manufacturing or design related problems were found during the investigation.A review of the labeling did not indicate any abnormalities.The instructions for use instructs user that: ¿use medical devices in accordance with their labeled indications and the manufacturer¿s instructions for use, especially during insertion and removal.Inspect devices prior to use for damage during shipment or storage or any out-of-box defects that might increase the likelihood of fragmentation during a procedure.Inspect devices immediately upon removal from the patient for any signs of breakage or fragmentation.If the device is damaged, retain it to assist with the manufacturer¿s analysis of the event.¿ based on investigation, the root cause was attributed to a user related issue i.E.Torsional overload fracture.The failure was caused by due to torsion of the device which broke on the application of high forces.If any further information is provided, the complaint report will be updated.
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