Patent ID: 9687679
Date: 2017-06-27
CPC Classifications: A61N

Claim:
1. A particle beam therapy system, comprising: a plurality of treatment rooms; a plurality of particle beam irradiation apparatuses placed respectively in the plurality of treatment rooms; an accelerator that accelerates a charged particle beam; and a beam transport system that transports the charged particle beam accelerated by the accelerator to the plurality of particle beam irradiation apparatuses; wherein the beam transport system includes a beam-path changer for changing a beam path so as to transport the charged particle beam to any one of the plurality of particle beam irradiation apparatuses; wherein the accelerator comprises an emitter; wherein the emitter is configured to receive an emitter control signal and the beam-path changer is configured to receive a beam-path changer control signal so that, with respect to the plurality of particle beam irradiation apparatuses in which treatment is performed at a same treatment period of time, the charged particle beam is transported to each one of the plurality of particle beam irradiation apparatuses for each time period allocated thereto; and wherein, with respect to a plurality of respiration gate signals for permitting radiation of the charged particle beam that are generated, from individual monitoring of respiratory states of a plurality of patients to be irradiated with the charged particle beam by the plurality of particle beam irradiation apparatuses, respectively for the plurality of patients, when at least two of the plurality of respiration gate signals become simultaneously “ON”, the emitter, based on the emitter control signal, and the beam-path changer, based on the beam-path changer control signal, operate so that the charged particle beam is transported, without depending on the plurality of respiratory gate signals, to the particle beam irradiation apparatus in the treatment room designated by a time-sharing signal for cyclically selecting each one of the plurality of particle beam irradiation apparatuses, on the basis of the plurality of respiratory gate signals and the time-sharing signal.