This event has been recorded by zimmer biomet under(b)(4).This medwatch is being filed to relay additional information.The following sections were updated/corrected: b1, b2, b5, d4, e2, e3, g3, g7,h1, h2, h3,h4, h6 and h10.H6: delay in surgery was at least 30 minutes.The device history record (dhr) review noted no related non-conformances, requests for deviation, change notices or any other issues with manufacturing or with the device.The dhr review also found that all verifications, inspections and tests were successfully completed.On (b)(6)2019, it was reported that the surgeon said it was skipping and not giving a smooth graft.The customer returned an electric dermatome device, serial number (b)(6), for evaluation.Product review of the electric dermatome on (b)(6)2020 revealed that the motor speed was within specification but ran erratically.The calibration was out of specifications at the zero setting only and the control bar was slightly out of position.The customer did not return a power supply for evaluation.While the returned product investigation confirmed that the electric dermatome motor was running erratically, it cannot be determined from the information provided what actually caused the reported event.Therefore, based on the information provided, a specific root cause of the reported event cannot be determined.The device was noted to be functioning as intended after the vespel bearings, semi-circle bearings, eccentric shaft, plug harness assembly, motor, switch, seal/strain relief, end cap, and o-ring were replaced.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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