Udi ¿ (b)(4).The valve was not returned for evaluation (discarded) 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 root cause for the issue reported by the customer is probably due to a sharp or pointed object coming into contact with the device, as noted in the ifu silicone has a low cut/tear resistance.
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