Patent ID: 7860550

Claim:
A patient positioning assembly for adjusting patient position during a therapeutic radiation treatment using a therapeutic radiation treatment system, wherein said patient positioning assembly comprises: a robotic positioning device to support and to move the patient loaded on said robotic positioning device, wherein said robotic positioning device is configured to move said patient in at least five independent degrees of freedom, wherein said robotic positioning device comprises: a treatment table to support said patient thereon; a robotic arm assembly coupled to the treatment table, wherein the robotic arm assembly is configured to orient the treatment table by rotating the treatment table about roll-, pitch-, and yaw-axes for three rotational degrees of freedom, and wherein the robotic arm assembly is configured to position the treatment table by rotating about two axes to translate the treatment table for two translational degrees of freedom, wherein the robotic arm assembly comprises: an arm assembly extending between a first end and a second end, wherein the second end is rotatably connected to the treatment table to allow the treatment table to rotate about three axes, wherein rotations about the three axes rotate the treatment table in the three rotational degrees of freedom; and a plate member rotatably connected to the first end of the arm assembly to allow the arm assembly to rotate about a first axis, wherein rotations about the first axis translate the treatment table in a first of the two translational degrees of freedom; and a base member rotatably connected to the plate member to allow the plate member to rotate about a second axis, wherein rotations about the second axis translate the treatment table in a second of the two translational degrees of freedom.