It was reported that when a coma patient was being scanned, their arm suddenly fell off the table while it was traveling out of the gantry bore.Contacting the gantry, the left wrist joint sustained a fracture.The system has been certified for iec60601-1.The cradle movement is controlled by a control panel on the gantry or a foot pedals on the table.The operation is by continuous activation as specified.The gantry has a collision sensor which detects a touch by objects at the top center of the bore.Three types of patient straps (50mm, 100mm and 320mm wide) are provided as accessories with the system.The gantry and the operator's console has emergency switches so that the operator can stop any movement/scan.The technical reference manual and user manual require the customer to secure and position the patient properly during a scan.Root cause was determined to be a patient positioning error.A patient strap was used for the body but arms were not secured since the operator did not anticipate patient arm motion since the patient was in a coma.Risk analysis has concluded the residual risk of this design has been reduced to afap.Ge will continue to trend similar events.No further action is planned.
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