Device evaluation of monitor sn (b)(4) has been completed.The reported problem (adjust belt messages) has been confirmed.Upon investigation, the monitor failed a baseline test.The root cause for the failure was contamination of the j1001 on the ca board.The root cause for the contamination was ingress of an unknown liquid.Lifevest patient training materials have been updated as a reminder not to expose the lifevest electronic components to liquids.No adverse events occurred from the defective monitor.
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