Udi: (b)(4).Dhr - lot 4837610 conformed to the specifications when released to stock.Failure analysis - the valve was visually inspected; the needle guard was raised.The valve passed the test for programming, leak, reflux, siphon guard and pressure.The valve was flushed; no occlusion was noted but the flow was difficult.The needle chamber was dismantled; the needle guard was bent, and glue traces were noted on the needle guard and the silicone housing base.The root cause for the problem reported by the customer is due to the raised needle guard this is probably due to wrong handling as noted in the ifu : do not fold or bend the valve, folding or bending might cause rupture of the silicone housing, needle guard disc dislodgement or occlusion of the fluid pathway.
|