Investigation summary: customer returned one loose 3/10cc, 8mm syringe.Customer states that the stopper was deformed.The returned syringe was examined and exhibited a deformed stopper in the barrel.Unable to perform dhr check due to unknown lot number.Based on the samples / photo(s) received the investigation concluded: confirmed: bd was able to duplicate or confirm the customer¿s indicated failure.Capa 122939 has been opened to address this issue.The sample was cycle tested and a slight increase in the force required to complete this testing was noted, though negligible.The sample was additionally disassembled and the stopper was noted to retain its deformed configuration.Potential root causes include misalignment during assembly/manufacturing or a supplier related defect.This condition is referred to as a rolled stopper which can occur during the assembly process, when the plunger rod is being assembled in the barrel and there is inadequate (not enough) lube present in the barrel id (inner diameter) and or the stopper itself does not have enough lube on it.As a result, the stopper does not move freely in the barrel and can become stuck and deformed.
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