The device intended for use in treatment was returned for evaluation and we have established a relationship between the device and the reported event.A visual inspection was performed and showed the piston assembly is in a middle position.Functional inspection showed there was no flow from the water source upon insertion of the feed line.The piston assembly was pulled to the upper position.The output was weak and pulsing.The pump cartridge assembly was opened, and the high-pressure valve ball was corroded with rust within it's fitting.The root cause is identified as corroded component.The manufacturing records show no evidence that the product did not meet specification at the time of manufacture.The complaint history file contains further instances related events of the reported event.This investigation is now complete with no further action deemed necessary.Smith and nephew will continue to monitor for any adverse trends relating to this product range.
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