This event has been recorded by zimmer biomet under: (b)(4).This medwatch is being filed to relay additional information upon investigation completion as final.On june 17, 2019, it was reported that the unit produced an incomplete mesh.The customer returned a skin graft mesher device, serial number: (b)(6), for evaluation.The customer also returned an autoclave case, ratchet, 1.5:1 ratio cutter, serial number: (b)(6), and a 2:1 ratio cutter, serial number: (b)(6), for evaluation.Device evaluations results/investigation findings: product review of the skin graft mesher on june 26, 2019 revealed that the calibration was slightly out of specifications but the mesher produced a complete cut with the qa test cutter.The gear had visible damage.The 1.5:1 ratio cutter, serial number: (b)(6) and 2:1 ratio cutter, serial number: (b)(6), both produced incomplete cuts after the collars and gears were replaced and were deemed non-repairable.Repair of the skin graft mesher was performed by zimmer biomet surgical on june 26, 2019 which included replacement of the roller gear.Skin graft mesher, serial number: (b)(6), was then tested and functioned properly.It was repaired, inspected and tested.Probable cause/root cause: the cause of the reported event was due to the defective 1.5:1 and 2:1 ratio cutters.During the product review it was noted that the 1.5:1 ratio cutter, serial number: (b)(6) and 2:1 ratio cutter, serial number: (b)(6), both produced incomplete cuts after the collars and gears were replaced and were deemed non-repairable.It is unknown with the information that was provided how this occurred.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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