US 12,138,482 B2
Multi-leaf collimator module
Martin Broad, Crawley (GB)
Assigned to Elekta Limited, Crawley (GB)
Appl. No. 17/906,147
Filed by Elekta Limited, Crawley (GB)
PCT Filed Mar. 11, 2021, PCT No. PCT/EP2021/056270
§ 371(c)(1), (2) Date Sep. 12, 2022,
PCT Pub. No. WO2021/180898, PCT Pub. Date Sep. 16, 2021.
Claims priority of application No. 2003694 (GB), filed on Mar. 13, 2020.
Prior Publication US 2023/0173304 A1, Jun. 8, 2023
Int. Cl. A61N 5/10 (2006.01)
CPC A61N 5/1045 (2013.01) [A61N 5/1048 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-leaf collimator module for a radiotherapy device, the multi-leaf collimator module comprising:
a leaf bank comprising a plurality of leaves;
a leaf guide arranged to guide linear movement of the plurality of leaves in a first direction and a second direction opposite the first direction, the leaf guide being in direct contact with the plurality of leaves;
a plurality of leaf actuators, wherein each leaf actuator arranged to cause relative linear motion in the first direction and second direction between a particular leaf in the leaf bank and one or more other leaves in the leaf bank; and
a leaf bank actuator arranged to cause relative linear motion in the first direction and second direction between the entire leaf bank and the leaf guide.