Radiotherapy apparatus
AssigneeElekta Limited
InventorsClifford William Perkins, Trevor Burke, Rejean LEBLANC, Ruud VERHAEGH
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a radiotherapy apparatus comprising a gantry rotatable about a gantry rotation axis, and a plurality of rotatable rollers positioned underneath the gantry and configured to support the gantry. A first rotatable roller of the plurality of rotatable rollers is configured to rotate about a first axle, and the first axle is configured to rotate about a first axle rotation axis. The first axle is configured such that rotation of the first axle about the first axle rotation axis displaces the first rotatable roller in a direction substantially perpendicular to the gantry rotation axis.
Claims20
A radiotherapy apparatus comprising:
- a gantry rotatable about a gantry rotation axis;
- and
- a plurality of rotatable rollers positioned underneath the gantry and configured to support the gantry, wherein a first rotatable roller of the plurality of rotatable rollers is configured to rotate about a first axle, wherein the first axle is configured to rotate about a first axle rotation axis, and wherein the first axle is configured such that rotation of the first axle about the first axle rotation axis displaces the first rotatable roller in a direction substantially perpendicular to the gantry rotation axis.
A method for displacing a first rotatable roller of a plurality of rotatable rollers positioned underneath a gantry of a radiotherapy device, wherein each roller in the plurality of rotatable rollers is configured to support the gantry, wherein the gantry is rotatable about a gantry rotation axis, wherein the first rotatable roller of the plurality of rotatable rollers is configured to rotate about a first axle, wherein the first axle is configured to rotate about a first axle rotation axis, and wherein the first axle is configured such that rotation of the first axle about the first axle rotation axis displaces the first rotatable roller in a direction substantially perpendicular to the gantry rotation axis, the method comprising:
- rotating the first axle about the first axle rotation axis to displace the first rotatable roller in the direction substantially perpendicular to the gantry rotation axis.
A radiotherapy device comprising:
- a gantry;
- one or more rotatable rollers positioned underneath the gantry, wherein the gantry is rotatable about a gantry rotation axis, wherein the one or more rotatable rollers are configurable to support the gantry, wherein a first rotatable roller of the one or more rotatable rollers is configurable to rotate about a first axle, wherein the first axle is configurable to rotate about a first axle rotation axis, wherein the first axle rotation axis is configured such that rotation of the first axle about the first axle rotation axis displaces the first rotatable roller in a direction substantially parallel to the gantry rotation axis, and wherein a second rotatable roller is configurable to rotate about a second roller axle, wherein the second roller axle is configured to rotate about a second axle rotation axis, and wherein the second roller axle is configured such that rotation of the second roller axle about the second axle rotation axis displaces the second rotatable roller in a direction substantially perpendicular to the gantry rotation axis;
- and
- a support structure, the support structure including a first axle holder configurable to support the first axle and define the first axle rotation axis.
Dependencies are inferred from the claim text.