US Patent 11964173 Radiotherapy device

Disclosed herein is a radiotherapy apparatus for delivering radiation to a patient. The apparatus comprises a gantry, a source of radiation attached to the gantry and configured to emit radiation along a radiation axis, a support structure for supporting the gantry, and a gantry rotation mechanism positioned between the support structure and the gantry. The gantry rotation mechanism is configured to rotate the gantry about a gantry rotation axis, and tilt the gantry with respect to the gantry rotation axis such that the radiation axis is non-perpendicular with the gantry rotation axis.