Rotatable patient table for rt applications

A patient table comprising:

• a lower structure;
• an upper structure connected to the lower structure via a lifting mechanism;
• a table top on the upper structure, on which an adult person can be supported, wherein
• a first end of the lower structure is supported on a foundation via a pivot bearing, such the lower structure is rotatable about a vertical axis of rotation,
• another end of the lower structure is not supported,
• the lifting mechanism is between the one and the other end of the lower structure and below the upper structure;
• a drive on the lower structure, the drive configured to act on a drive shaft of a gear, wherein
• a rotation of the drive shaft brings about a rotation of a driven shaft,
• the gear includes a gear casing which is non-rotatably arranged on the foundation and in which the drive shaft and the driven shaft are supported;
• and
• an arm is non-rotatably arranged on the driven shaft and is connected to the lower structure, so when the drive shaft rotates, the arm exerts a torque on the lower structure, so the lower structure is rotated about the axis of rotation, wherein
• the gear is a structural element different from the pivot bearing,
• based on the axis of rotation, the gear casing is arranged radially inside the pivot bearing and axially in a region of the pivot bearing, and
• the arm is configured to act on the lower structure via a coupling element, via which the torque exerted on the arm is transferred to the lower structure while a radial movement of the arm relative to the lower structure is still enabled.