This event has been recorded by zimmer biomet under cmp-(b)(4).The device history record (dhr) review was unable to be performed as the dhr associated with this device is not available.This device was manufactured prior to may 2009 where it was identified a robust dhr indexing and handling process was not in place.A corrective and preventative action (capa) (b)(4) implemented a serial number logbook to correct this issue.On (b)(6) 2020, it was reported that this unit was sent in for pm and upon inspection found in need of unknown repair.The customer returned an air dermatome device, serial number (b)(4), for evaluation.The customer also returned a hose and 1/2/3/4 width plates, for evaluation.Product review of the air dermatome on (b)(6), 2020 revealed that the motor speed was within specifications but was erratic.The control bar was not in the correct position and the calibration was out of specifications at the zero setting only.The head and reciprocating arm had visible wear.The control bar had gouges and the swivel doesn't rotate smoothly.While the returned product investigation confirmed that the air dermatome required repair, it cannot be determined from the information provided which component or combination of components caused the pm to escalate to a repair.A number of findings were noted during evaluation could have contributed to the reported event such as the calibration being out of specification at the zero setting, the control bar being in the wrong position, the swivel not rotating smoothly, the head, reciprocating arm, and control bar having visual damage, and the motor running erratically.Therefore, based on the information provided, a specific root cause of the reported event cannot be determined.The device was not repaired as the customer did not respond to the repair quote.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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