The customer reported complaint for the platform displayed a user advisory (ua) 12 (lifeband not present) error message was not confirmed during functional testing but was confirmed during archive data review.Analysis of the autopulse platform revealed no problems with the board which may have contributed to the reported complaint.Visual inspection was performed and found cracked front cover, unrelated to the reported complaint.Front cover was replaced to address the issue.During run_in test, unrelated to the reported issue, the platform stop compressions due to system error 139 (unable to hold compression position).The root cause of the issue was due to the drive train motor brake gap assembly was out of specification.After adjusting the brake gap, the autopulse was subjected to the run in test using 95% patient large resuscitation test fixture for 30 minutes and passed with no issue or faults observed.Review of the archive data indicated multiple user advisory (ua) 12 error message on (b)(6) 2018.The lifeband clip detect switch inspection was performed and verified that the switch closed and the switch lever is parallel to the switch case.In addition, ensured two screws holding the switch lever parallel to the switch case were not missing and were tightened correctly.Per the archive data, a user advisory (ua) 19 (max applied load exceeded) error message was recorded on the same day as the load plate detected excessive weight being applied (the patient weight exceeding 312 lbs) on the platform.User advisory (ua) 19 error message observed in the archive data is easily clearable by user.Per the autopulse user guide instructions, the error messages can be cleared by using a fully charged autopulse battery and restarting the platform.Historical complaints were reviewed for service information related to the reported complaint and there was no similar complaint reported for autopulse with serial number (b)(4).
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