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Updated fields: b4,d9,e1(site country),g3,g6,h2,h3,h4,h6(type of investigation, investigation findings, component codes,investigation conclusions), h10 additional fields:e1(event site address: (b)(6), event site telephone: (b)(6).It was reported that the device the cs300 intra-aortic balloon pump (iabp) will be used from (b)(6) 2023.If the compressor's negative pressure is insufficient alarm occurs multiple times during use, the will contact you by phone to inquire about the cause of the alarm and what to do about it.When they informed them of the cause of the negative pressure shortage alarm and told them that they would consider replacing it with another iabp device, they said that they would continue using it as they were scheduled to leave the iabp tomorrow.Regarding the frequency of alarm occurrences, there were times when the alarm occurred up to three times an hour, and times when there were no alarms.Getinge field service engineer (fse) manifold driver replacement was carried out, and at the same time regular inspections were carried out.We determined that there was no problem with the post-repair inspection, and delivered the cs300 to the hospital.There was patient involvement but no patient harm.The defective components were received for further investigation.The failure analysis and testing dept.Received part number (b)(4) manifold drive, serial number (b)(6) with a reported unit failure of if the negative pressure of the compressor is insufficient, alarms occur multiple times.The failure analysis and testing dept.Performed a visual inspection and found the part to be in good condition.The failure analysis and testing dept.Installed part number (b)(4) manifold drive, serial number (b)(6) into the cs300 test fixture serial number (b)(6) , and tested the drive manifold to factory specifications per the cs300 service manual part number (b)(4) revision w.The fat performed a k6,k6a, k7, k8 leak test.The test passed.The fat could not replicate the failure the customer experienced of the unit going to a negative pressure and alarming.The drive manifold passed testing.The non-conformances with the returned components were not confirmed.However, the root cause or the most probable root cause is not confirmed.
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