The 70106.4557 bo-02971-j#reservoir vhk 71000 softline.(lot# 92178043) has been received for further investigation in our laboratory.It has been investigated as follows: visual inspection of the reservoir.Result: during visual inspection of the reservoir it has been detected that one of 5 welding points, which are connecting the cover of the reservoir with its filter basket, is broken.During priming those broken welding point was rinsed into the tube and represents therefore the complained blue foreign matter.Thus the failure could be confirmed.An supplier (b)(4) complaint has been initiated.Investigation result: the most probable root cause could be determinded as transportation failure.Supplier investigated as follows: during the production the welding process of pins has been observed.The welding machine runs automatically.The temperature and the time have been automatically entered to the machine.During production of reservoir, all the stages have been controlled visually and there were no possibility that there could be any broken pieces in the reservoir.Since high pressure air has been pumped to the reservoir after each process.In order to realize the failure, the products have been tested by throwing them in different ways.It was observed that the pins (blue spots) were broken similar to the complaint.Additionally, process risk assessment of the welding parameters have been reviewed.Therefore, based on the investigation, it could be possible that the pins were broken off during transportation.The operators have been informed with regards of the complaint.Device history record of the complained lot has been investigated by (b)(4) and no abnormality was found.Since the reported failure did not contribute to a death or serious injury no corrective action is needed.In addition at this time it cannot be concluded that this is a systemic error.The data is also being handled through a designated maquet cardiopulmonary trending and applicable investigation process.Due to this no further investigation initiations will be completed at this time.
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