Patient positioning support structure with trunk translator

A patient support structure comprising:

• a first column including a distal end coupled to a first member and a proximal end coupled to a first housing;
• a second column including a distal end coupled to a second member and a proximal end coupled to a second housing;
• a rail connecting the first base member with the second base member;
• a patient support comprising a head section coupled to the first housing and a foot section coupled to the second housing, the sections each including a bottom surface and an opposite top surface configured to support a patient, the top surface of the head section defining a first plane, the top surface of the foot section defining a second plane, the sections being interconnected by a hinge;
• and
• a tilt assembly coupled to one of the housings and one of the sections, the tilt assembly being configured to move the patient support between a first orientation in which the first plane extends parallel to the second plane and a second orientation in which the first plane extends transverse to the second plane.

A patient support structure comprising:

• a first column including a distal end coupled to a first member and a proximal end coupled to a first housing;
• a second column including a distal end coupled to a second member and a proximal end coupled to a second housing, the second member comprising a pair of casters, a set of feet and jacks that are engageable with the feet for preventing movement of the casters;
• a rail connecting the first column with the second column;
• a patient support comprising a head section coupled to the first housing and a foot section coupled to the second housing, the sections each including a bottom surface and an opposite top surface configured to support a patient, the top surface of the head section defining a first plane, the top surface of the foot section defining a second plane, the sections being interconnected by a hinge;
• and
• a tilt assembly coupled to one of the housings and one of the sections, the tilt assembly being configured to move the patient support between a first orientation in which the first plane extends parallel to the second plane and a second orientation in which the first plane extends transverse to the second plane,
• wherein the columns each include a lift assembly comprising an outer segment, an inner segment within the outer segment, a screw within the inner segment and a motor, the outer segment and the screw each being fixed to one of the members, the inner segments each being fixed to one of the housings, the motors each being configured to drive one of the screws to raise and lower one of the inner segments relative to one of the outer segments, and
• wherein the first member comprises a translation assembly configured to slide along the head section as the patient support moves from the first orientation to the second orientation, the translation assembly being connected to the hinge by a linkage.