Patent ID: 7181792

Claim:
A radiotherapeutic bed apparatus comprising: a bed for supporting a patient; a bed drive device for moving said bed for positioning an affected area of the patient in an irradiation position of radiation emitted from an irradiation section; and an inclination adjusting device provided to said bed drive device for adjusting the inclination of the bed, wherein the inclination adjusting device including a plurality of movable support members supporting said bed at a plurality of support points and adjusting the levels of the respective supporting points, wherein each of said movable support members comprises a support rod attached to a corresponding one of the plurality of support points, and a support rod drive device for moving said support rod and adjusting the level of the support point at which the support rod is attached, wherein each support rod is rotatably attached to the corresponding one of said support points and said support rod drive device, and wherein each support rod drive device comprises a rectilinearly moving member to which said support rod is rotatably attached, and a drive device for moving the rectilinearly moving member in a direction perpendicular to the vertical direction.