This event has been recorded by zimmer biomet under (b)(4).Upon investigation it was found the device had a previously reported malfunction.This medwatch is being filed to relay the investigation evaluation.The device history record (dhr) review noted no related non-conformance, requests for deviation, change notices or any other issues with manufacturing or with the device.The dhr review also found that all verification, inspections and tests were successfully completed.Zimmer biomet surgical has not previously repaired/evaluated skin graft mesher serial number (b)(4) as documented in the repair reports in (b)(4).On (b)(6) 2019, it was reported that the pin in the mesher was bent.The customer returned a skin graft mesher device, serial number (b)(4) , for evaluation.Product review of the skin graft mesher on june 19, 2019 revealed that the comb was bent.The ratchet gear, pin, and spring were all worn and needed replaced.The calibration and sample mesh could not be taken due to the bent comb.No cutters were returned for evaluation.Repair of the skin graft mesher was performed by zimmer biomet surgical on june 19, 2019 which included replacement of the ratchet gear, ratchet spring, ratchet sliding pin, and comb.Skin graft mesher, serial number (b)(4) , was then tested and functioned properly.It was repaired, inspected and tested.Although the reported event was confirmed during inspection of the device, and the device was found to be functioning as intended after the repair was completed, it cannot be determined from the information provided what caused the reported event.Therefore, the root cause could not be determined.The investigation was based on the information that was provided initially and any information that was obtained throughout the follow-up process.
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