A patient support device for a radiation therapy system has a load-bearing element, which is set up so as to be supported rotatably on a stationary structure about a vertical iso-axis extending through a treatment iso-center. The load-bearing element, with a patient tabletop mounted on it, can be leveled...http://www.google.ca/patents/US7008105?utm_source=gb-gplus-sharePatent US7008105 - Patient support device for radiation therapy
