One used level 1 ® disposable normothermic iv administration set was returned for investigation.The sample was received inside a plastic bag and without its original packaging.Visual inspection was performed at distance of 12" to 24" and under normal conditions of illumination.Examination found no damage with the sample.During functional testing, the sample was connected to a level 1® h-1200 fast flow fluid warmer.After 5 minutes, which is the time required to empty a 1500ml fluid supply bag, the assembly showed no occlusions or air bubbles within the fluid path and the filter gas vent assembly was noted to be properly eliminating the bubbles from the system.The manufacturing facility performed a review of the manufacturing process.The review showed that assembly process was being performed as per procedures: this included review of basic assembly, pressure testing, and a review of the cap, vent with membrane that was being used during the manufacturing process.The manufacturing facility also performed an in-process visual inspection of (b)(4) products that were in the assembly area: the inspection showed no product damage or discrepancies that could result in air in the line.Investigation was unable to confirm the reported issue and found that the sample operated as intended.(b)(4).
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