Abstract: An earthquake resistant, roller-supported, modular, isocentric gantry for supporting and rotating a radiation beam transport and delivery system on an axis of rotation around a stationary patient so as to precisely deliver a treatment beam to a predetermined target isocenter within the patient from several different angles during patient treatment. The gantry is formed of three primary building blocks: a conical inner support structure, an outer segmented, modular truss structure and a ladder truss which may be assembled in the field to form an isocentric gantry.

Abstract: An earthquake resistant, roller-supported, modular, isocentric gantry for supporting and rotating a radiation beam transport and delivery system on an axis of rotation around a stationary patient so as to precisely deliver a treatment beam to a predetermined target isocenter within the patient from several different angles during patient treatment. The gantry is formed of three primary building blocks: a conical inner support structure, an outer segmented, modular truss structure and a ladder truss which may be assembled in the field to form an isocentric gantry.

Abstract: A whole-body patient positioning and repositioning support for fixedly securing a patient in an original position during radiation treatment and for repositioning the patient to the same original position for subsequent radiation treatments. The support includes a foamed-in-place mold within a disposable plastic shell carrying a grid of radio-opaque members for generating a patient registration grid on X-rays for use in the evaluation and adjusting of the position of the patient to the original position using a sheet or straps between the patient and the mold.