Unique device identifier: (b)(4).Device history record (dhr) - the dhr shows no abnormalities related to the reported failure.Complaint confirmed via inspection of the unit.For the returned mayfield skull clamp, the index knob was stiff to turn and the ratchet extension sticking.These issues are a result of wear from routine use, unit required general maintenance and cleaning.No further investigation required based on the acceptability of risk and no adverse trends identified.This will be monitored and trended going forward.
|