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Updated fields: d4, d9, g3, g6, h2, h3, h4, h6, h11.The cusa clarity 23khz handpiece (b)(6) was returned for evaluation: device history record (dhr) review - the dhr documentation was reviewed and no anomalies during the manufacture or packaging that could be associated with the complaint incident was observed.Failure analysis - investigation of the returned product shows that there were no signs of rust or calcification.A functional test was completed and the device meets manufacturer specifications.Root cause - the complaint is not confirmed as no fault was found during the evaluation and testing of the returned handpiece.However, based on the reported calcification issue, it may have been due to dirt or residue present on the device that was mistaken for calcification.No further investigation is required based on the acceptability of risk and no adverse trends identified.This will be monitored and trended going forward.At present, we consider this complaint to be closed.
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