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The investigation was completed by our experts.According to the information provided by a siemens local service engineer (cse), the issue occurred when a patient was brought in to be transferred onto the siemens or table.During the patient transfer, the user moved the patient bed along the left side of the table.The user lowered the table from 89,4 cm to 75,9 cm as recorded in the logs.Apparently, by lowering the table, the accessory rail was moved over some part of the bed, and the lower part of the accessory rail was caught on the bed.After the patient was transferred to the table, the bed was pulled away from the table, and the accessory rail was pulled from the sliding rail and fell off the tracks on the operator¿s big toe, which resulted in a break.The sliding rail was inspected, and some damages can be seen as described below.There are markers, which have the shape of the bearings/rollers for the movement of the accessory rail.They are located at the head end side of the rail at the distance of the rollers.This leads to the conclusion that the accessory rail was extended at the foot end side when it was levered out.The markers lead to the conclusion that the rail has been treated roughly right before it was levered out.These spots also indicate that the accessory rail was torn down or levered out by physical force.Another major external damage exists at the edge of the sliding rail, the aluminum profile is bent at the top outside edge by approx.10 mm during an on-site inspection by the cse, it was found that the bearings/rollers were loose.The exact reason could not be determined.It is assumed that in was caused by previous impact, since damage from a previous collision was found on the c-arm.The cse replaced the rail and tightened the bearings firmly with no wiggle.When the reported incident occurred, it should have been noticeable that the bed was caught by the accessory rail.The rail should have been disentangled (e.G.By lifting the table) from the bed before moving the bed away from the table.As root cause for the non-conformity an individual use issue was be determined.The occurrence rate of the aforementioned error pattern was checked.A possible error accumulation or even a systematic error, which leads to a corrective action of the installed base, could not be determined by the investigation.
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