The device used in treatment has not been returned for evaluation, with no additional information provided.We have not been able to establish a relationship between the device and the reported event or determine a root cause on this occasion.Factors that can contribute include, difficulty to interlock, blockages, kinks, the unique interface maybe out of alignment or corroded, noise could be due to the device requiring servicing.The instructions for use provide comprehensive instructions of the operation, use and limitations of the device.The associated risk files contain the reported failure/harm or event.However, as no harm has been alleged then additional review is not required.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 the reported events, however this investigation is now complete.
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