Udi for this product code is not required to be registered with fda.The actual device was not returned to the manufacturing facility.An unused sample from the reported product code/lot combination was returned to the facility for evaluation.Visual inspection found no anomalies.The sample was tested for its gas transfer performance.No anomalies were revealed and the obtained values met manufacturing specifications.A review of the device history record and the product release decision control sheet of the involved product/lot # combination was conducted with no relevant findings.The user facility reported a similar event for another device with the same product/lot no.Combination, see mdr 9681834-2017-00010 for details.There is no evidence that this event was related to a device defect or malfunction.The sample was confirmed to be normal product with its gas transfer performance meeting specification.Although the exact cause of the reported event cannot be definitively determined based on the available information, the following factors can be inferred: high hb prevented pao2 from rising adequately; and fio2 lower than 100% and insufficient gas flow rate led o2 supply volume to come to be insufficient.The device labeling does address the potential for such an event in the instruction for use (ifu) with the statement such as the following: "start gas supply with v/q=1 and fio2=100%, then make adjustments based on blood gas measurements." (b)(4).All available information has been placed on file in quality assurance for appropriate tracking, trending and follow-up.Actual device not returned.
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