Unique device identification (udi) - (b)(4).The certas valve was returned for evaluation: device history record was not possible as the lot number and was unknown.Failure analysis - the valve was visually inspected, needle hole in the needle chamber was noted.The valve was hydrated.The valve passed the test for programming, flushed, leak, reflux, siphon guard and pressure.The possible root cause for the problem reported by the customer could be due to "after steam sterilization the ruby ball sticks to the ruby seat¿ and potential effects of failure include ¿'excessive pressure required to flush the valve pre-procedure, no functional issues were noted during the investigation.
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