The report of the autopulse platform (sn (b)(4)) displaying a user advisory (ua) 11 (max patient temperature exceeded) error message and subsequently shutting down was confirmed based on the evaluation of the archive data retrieved from the platform; however, the reported event was not reproduced during functional testing of the platform.There were no device deficiencies found during functional testing which could have caused or contributed to the reported ua 11 error message.Therefore, a root cause of the ua 11 error message could not be determined.However, possible causes could be due to the ambient temperature being outside of operating parameters or the vents underneath the platform are blocked.Review of the archive data retrieved from the platform indicated a user advisory (ua) 11 (max patient temperature exceeded) error message.The platform was functionally tested and powered on without any error message observed.The ua 11 was not observed.Multiple tests were performed and showed that the platform's temperature sensor is functioning properly.The thermal management system maintains the platform's internal temperatures to prevent patient surface temperatures in excess of the allowed threshold.Note that the user advisory error messages are designed into the platform when one of several conditions is detected.The ua 11 error message observed in the archive data can be cleared by allowing the platform to cool down and performing the power on self test (post).Additionally, further functional testing of the platform revealed a system error 139 (unable to hold compression position) message on the display screen during run-in test, which was unrelated to the reported event.The system error message was due to the drive train motor brake assembly being out of specification.After the component was replaced, the platform was re-evaluated and operated with continuous compression using a light resuscitation test fixture without any observed errors.Historical complaints were reviewed for service information related to the reported complaint and there was no previous history of complaint reported for autopulse platform with serial number (b)(4).The autopulse platform is a reusable device and was manufactured on nov 2012.
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