The device was not returned for evaluation.A failure mode of '3.2 air leakage into the system¿ with a root cause of '3.2.1 misconnection of supply and return lines.¿ the lot number is unknown; therefore, the device history record could not be reviewed.The instructions for use were found adequate and state the following: "if the pad fails to prime or a significant continuous air leak is observed in the pad return line, check the connections, then if needed, replace the leaking pad.Once the pad is primes, assure the steady state flow rate displayed on the control panel is appropriate.The minimum flow rate should be 1.1 l/m".
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