One smiths medical bci® spectro2¿ 10 pulse oximeter was returned for analysis in good condition.Inspection was performed, parts were swapped, was powered on/off, and a sp02 test was completed.Upon receipt of monitor, a rattling sound come from inside.The monitor was opened and found the ram battery with its bracket dislodged from the main board.The cause of the loose parts was found due to impact.Which caused the soldered bracket to come apart from the main board; damaging the red flashing alarm led near the top of the main board.Based on the evidence, the root cause was from user interface.
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