US 11,883,683 B2
Particle therapy system
Yusuke Fujii, Tokyo (JP); Ryuya Ando, Tokyo (JP); Manabu Aoki, Tokyo (JP); Kikuo Umegaki, Sapporo (JP); Shinichi Shimizu, Sapporo (JP); Taeko Matsuura, Sapporo (JP); and Hiroki Shirato, Sapporo (JP)
Assigned to HITACHI, LTD., Tokyo (JP); and NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo (JP)
Appl. No. 17/048,639
Filed by HITACHI, LTD., Tokyo (JP); and NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Hokkaido (JP)
PCT Filed Apr. 11, 2019, PCT No. PCT/JP2019/015812
§ 371(c)(1), (2) Date Oct. 19, 2020,
PCT Pub. No. WO2019/208243, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 2018-086846 (JP), filed on Apr. 27, 2018.
Prior Publication US 2021/0154495 A1, May 27, 2021
Int. Cl. A61N 5/10 (2006.01); A61B 5/055 (2006.01); G01R 33/421 (2006.01); A61B 6/02 (2006.01); G01R 33/38 (2006.01); G01R 33/48 (2006.01); A61B 6/03 (2006.01); A61B 5/00 (2006.01)
CPC A61N 5/1039 (2013.01) [A61B 5/055 (2013.01); A61B 6/02 (2013.01); A61N 5/1049 (2013.01); A61N 5/1081 (2013.01); G01R 33/421 (2013.01); G01R 33/4215 (2013.01); A61B 5/0035 (2013.01); A61B 6/032 (2013.01); A61N 5/1071 (2013.01); A61N 2005/1055 (2013.01); A61N 2005/1061 (2013.01); A61N 2005/1092 (2013.01); G01R 33/3806 (2013.01); G01R 33/4812 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A particle therapy system, comprising:
an accelerator which generates a charged particle beam for extraction;
an irradiation apparatus which irradiates the charged particle beam to an irradiation target;
a gantry which rotates together with the irradiation apparatus; and
an MRI apparatus which rotates together with the gantry,
wherein the MRI apparatus includes a magnetic circuit having an iron core and a plurality of coils serving as a magnetic flux source,
wherein the iron core includes two oppositely disposed magnetic poles, and a member for connecting the magnetic poles, and
wherein the MRI apparatus is movable to a direction of a rotation axis of the gantry.