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    • 3. 发明授权
    • Particle beam therapy system
    • 粒子束治疗系统
    • US08421031B2
    • 2013-04-16
    • US13258772
    • 2011-03-10
    • Taizo HondaMasahiro IkedaYuehu PuKazushi Hanakawa
    • Taizo HondaMasahiro IkedaYuehu PuKazushi Hanakawa
    • H01J3/26A61N5/10
    • A61N5/1043A61N5/1048A61N5/1077A61N2005/1074A61N2005/1087
    • The objective is to obtain a particle beam therapy system that can suppress the effect of a leakage dose. There are provided a scanning nozzle that irradiates in a predetermined direction a particle beam emitted from an accelerator; an irradiation control unit that controls operation of the irradiation nozzle in such a way that the particle beam of a predetermined dose is sequentially irradiated onto each of a plurality of spots set in a planar direction in an irradiation subject; and a control unit that on/off-controls emission of the particle beam from the accelerator. The irradiation control unit makes the irradiation nozzle scan in a diluting manner the particle beam onto a predetermined area in the irradiation subject, in a predetermined period after a time point when emission is switched from ON to OFF, or in a period from the time point when emission is switched from ON to OFF to a time point when the particle beam is cut off.
    • 目的是获得能够抑制泄漏剂量影响的粒子束治疗系统。 提供了沿预定方向照射从加速器发射的粒子束的扫描喷嘴; 照射控制单元,其以照射对象的平面方向上设置的多个点顺序地照射预定剂量的粒子束的方式控制照射喷嘴的动作; 以及控制单元,其控制来自加速器的粒子束的发射。 照射控制单元使得照射喷嘴在发射从ON切换到OFF之后的预定时间内或在从时间点开始的时间段内,将粒子束以稀释的方式扫描到照射对象的预定区域上 当发射从ON切换到截止到粒子束的时间点时。
    • 5. 发明申请
    • PARTICLE BEAM THERAPY SYSTEM
    • 颗粒束治疗系统
    • US20120228521A1
    • 2012-09-13
    • US13258772
    • 2011-03-10
    • Taizo HondaMasahiro IkedaYuehu PuKazushi Hanakawa
    • Taizo HondaMasahiro IkedaYuehu PuKazushi Hanakawa
    • A61N5/00
    • A61N5/1043A61N5/1048A61N5/1077A61N2005/1074A61N2005/1087
    • The objective is to obtain a particle beam therapy system that can suppress the effect of a leakage dose. There are provided a scanning nozzle that irradiates in a predetermined direction a particle beam emitted from an accelerator; an irradiation control unit that controls operation of the irradiation nozzle in such a way that the particle beam of a predetermined dose is sequentially irradiated onto each of a plurality of spots set in a planar direction in an irradiation subject; and a control unit that on/off-controls emission of the particle beam from the accelerator. The irradiation control unit makes the irradiation nozzle scan in a diluting manner the particle beam onto a predetermined area in the irradiation subject, in a predetermined period after a time point when emission is switched from ON to OFF, or in a period from the time point when emission is switched from ON to OFF to a time point when the particle beam is cut off.
    • 目的是获得能够抑制泄漏剂量影响的粒子束治疗系统。 提供了沿预定方向照射从加速器发射的粒子束的扫描喷嘴; 照射控制单元,其以照射对象的平面方向上设置的多个点顺序地照射预定剂量的粒子束的方式控制照射喷嘴的动作; 以及控制单元,其控制来自加速器的粒子束的发射。 照射控制单元使得照射喷嘴在发射从ON切换到OFF之后的预定时间内或在从时间点开始的时间段内,将粒子束以稀释的方式扫描到照射对象的预定区域上 当发射从ON切换到截止到粒子束的时间点时。
    • 7. 发明授权
    • Particle beam scanning irradiation system
    • 粒子束扫描照射系统
    • US09079026B2
    • 2015-07-14
    • US14386626
    • 2012-03-21
    • Yuehu PuMasahiro IkedaTaizo Honda
    • Yuehu PuMasahiro IkedaTaizo Honda
    • A61N5/10
    • A61N5/1071A61N5/103A61N5/1031A61N5/1043A61N2005/1087
    • A particle beam scanning irradiation method includes the steps of calculating a planned irradiating particle count of a particle beam for each of irradiation spots, on the basis of a relative amount of particle beam irradiation and a prescription particle-beam dose determined from a particle-beam therapy plan; simulating an irradiation process of the particle beam at each irradiation spot, on the basis of the planned irradiating particle count and a beam current waveform of the particle beam, and calculating a particle count of the particle beam irradiating the diseased portion during a scan shift of the particle beam; correcting the planned irradiating particle count for each irradiation spot by using the irradiating particle count during the scan shift; converting the corrected planned-irradiation particle count into a count value used in a dose monitor; and irradiating the irradiation spot with the particle beam, on the basis of the converted count value.
    • 粒子束扫描照射方法包括以下步骤:基于粒子束照射的相对量和从粒子束确定的处方粒子束剂量来计算每个照射点的粒子束的计划照射粒子数 治疗方案; 基于所计划的照射粒子数和粒子束的束电流波形,模拟在各照射点处的粒子束的照射过程,计算在扫描位移期间照射患病部位的粒子束的粒子数 粒子束; 通过使用扫描偏移期间的照射粒子数来校正每个照射点的计划照射粒子数; 将校正的计划照射粒子数转换为剂量监视器中使用的计数值; 并且基于转换后的计数值,用粒子束照射照射点。
    • 10. 发明授权
    • Beam data processing apparatus and particle beam therapy system
    • 光束数据处理装置和粒子束治疗系统
    • US09327140B2
    • 2016-05-03
    • US14115028
    • 2011-08-23
    • Taizo HondaYuichi YamamotoYuehu Pu
    • Taizo HondaYuichi YamamotoYuehu Pu
    • G01K1/08A61N5/10G21K5/04
    • A61N5/1048A61N5/1043A61N5/1075A61N5/1077A61N2005/1074A61N2005/1087G21K5/04
    • A beam data processing apparatus has a plurality of channel data conversion units that convert a plurality of analogue signals outputted from a position monitor into digital signals, a position size processing unit that calculates a beam position, based on voltage information items obtained through processing by the plurality of channel data conversion units, an abnormality determination processing unit that determines the beam position and generates a position abnormality signal, and an integrated control unit that controls the plurality of channel data conversion units in such a way that while a beam is stopped at an irradiation spot, digital signal conversion processing is implemented two or more times; the channel data conversion unit has a plurality of A/D converters, a demultiplexer that distributes analogue signals, and a multiplexer that switches respective digital signals processed by the A/D converters so as to output them to the position size processing unit.
    • 波束数据处理装置具有多个通道数据转换单元,其将从位置监视器输出的多个模拟信号转换为数字信号,位置大小处理单元,基于通过处理所获得的电压信息项,计算波束位置 多个通道数据转换单元,确定光束位置并产生位置异常信号的异常判定处理单元,以及控制多个通道数据转换单元的集成控制单元,使得当光束停止在 照射点,数字信号转换处理两次以上; 信道数据转换单元具有多个A / D转换器,分配模拟信号的多路分解器和切换由A / D转换器处理的各个数字信号的多路复用器,以便将它们输出到位置大小处理单元。