US 11,938,346 B2
Particle beam therapy apparatus and control method thereof
Hiroki Takahashi, Tokyo (JP); Masanori Suzuki, Tokyo (JP); Takuto Yagihashi, Tokyo (JP); Takeshi Fujita, Tokyo (JP); Isao Furuse, Tokyo (JP); and Yuko Okada, Tokyo (JP)
Assigned to HITACHI, LTD., Tokyo (JP)
Appl. No. 17/287,237
Filed by Hitachi, Ltd., Tokyo (JP)
PCT Filed Oct. 16, 2019, PCT No. PCT/JP2019/040569
§ 371(c)(1), (2) Date Apr. 21, 2021,
PCT Pub. No. WO2020/105320, PCT Pub. Date May 28, 2020.
Claims priority of application No. 2018-217424 (JP), filed on Nov. 20, 2018.
Prior Publication US 2021/0379402 A1, Dec. 9, 2021
Int. Cl. A61N 5/10 (2006.01)
CPC A61N 5/107 (2013.01) [A61N 5/1049 (2013.01); A61N 5/1083 (2013.01); A61N 2005/1087 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A particle beam therapy apparatus comprising:
an irradiation nozzle that irradiates a particle beam;
a treatment table on which a patient is placed; and
a control device that moves a movable body and sets a relative position and posture of the irradiation nozzle and the treatment table, the movable body being at least one of the irradiation nozzle and the treatment table that is capable of motion,
wherein the control device:
determines a movement path of the movable body when adapting the positional posture of the movable body from one condition among a plurality of prescribed conditions to another condition of a treatment,
obtains an evaluation value for each of a plurality of candidate orders, each candidate order indicating a different series of positional postures of moving the moveable body according to each of the plurality of prescribed conditions of the treatment, each evaluation value representing a motion state of the moving body upon moving the moving body according to the movement path to each positional posture of each prescribed condition,
determines a setting order for adapting the positional posture of the movable body to each of the plurality of prescribed conditions based on the evaluation values of each candidate order, and
adapts the positional posture of the movable body from one condition among the plurality of prescribed conditions to another condition by moving the movable body according to the movement path of the setting order.