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Updated fields: d4, d9, g3, g6, h2, h3, h4, h6, h11.The cusa excel 36khz straight handpiece (c2602) was returned for evaluation: device history record (dhr) ¿ the dhr was reviewed and no anomalies that could be associated with the complaint incident was observed.Failure analysis - the investigation of the unit was unable to confirm the reported issue.No fault was found, and the device passed all cosmetic and functional testing and meets specification.No issue was determined.However, it was observed that annual preventive maintenance (pm) was overdue.Consistent maintenance extends the lifespan of the handpiece and maintains its proper function.Our records show that this product has been in the field for 8 years with a history of one annual services.Root cause - the complaint is unconfirmed, and the device meet specifications.However, based on reported failure of, handle is very hot, per the cusa excel ifu, it is possible this issue is most likely due to: a pinch or kink in the handpiece cable, causing a blockage in the irrigation cooling flow; or no irrigation flow from the handpiece flue.No further investigation is required based on the acceptability of risk and no adverse trends were identified.This will be monitored and trended going forward.At present, we consider this complaint to be closed.
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