Investigation codes: updated investigation summary: the affected device was returned for evaluation.No abnormality related to the reported event was confirmed on the product's appearance.Visual inspection, functional test, and performance testing conducted.The reported event was confirmed using test lungs and non-zero peep pressure as per customer reported device settings.The root cause is due to the product settings; however, there is no problem with the product.Depending on usage conditions, oxygen saturation results will be as reported by the customer.No action taken.P310nj device passed all the functional & performance tests.
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