Unique device identification (udi): (b)(4).The certas valve was not returned for evaluation(hospital would not release), and lot number information has not been provided; therefore, an evaluation of the device could not be performed, and manufacturing records could not be reviewed.The cause(s) of the difficulty reported by the customer could not be determined.If additional relevant information becomes available in the future, this complaint will be reopened, and the respective evaluation performed.Trends will be monitored for this and similar issues.At present, we consider this complaint to be closed.The possible root cause for ¿siphonguard detached from main valve body¿ could be due to ¿inadequate adhesion with glue selection or inadequate mating geometry on housing and/or connector¿.
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