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1. 发明申请

US20040062353A1 Multi-leaf collimator and medical system including accelerator 失效
公开(公告)号：US20040062353A1
公开(公告)日：2004-04-01
申请号：US10676059
申请日：2003-10-02
申请人： Hitachi, Ltd.
发明人： Kohei Kato , Hiroshi Akiyama , Masaki Yanagisawa
IPC分类号： G21K001/04
CPC分类号： A61N5/1042 , G21K1/04 , G21K1/046
摘要： The invention is intended to shorten a positioning time required for forming an irradiation area with high accuracy using a number of leaf plates, and to reduce physical and mental burdens imposed on patients. A multi-leaf collimator comprises leaf plate driving body each including a plurality of movable leaf plates and provided respectively on one side and the other side, the plurality of leaf plates of the leaf plate driver on one side and the plurality of leaf plates of the leaf plate driver on the other side being disposed in an opposing relation to form an irradiation field of a radiation beam between the opposing leaf plates. Each of the leaf plate driving body includes a motor provided in common to the plurality of leaf plates. Driving force of the motor can be transmitted to the plurality of leaf plates at the same time through a pinion gear, upper and lower air cylinders, and upper and lower guides. Also, the driving force can be cut off selectively for each leaf plate.

2. 发明申请

US20040069959A1 Charged particle beam irradiation equipment and control method thereof 失效
标题翻译：带电粒子束照射设备及其控制方法
公开(公告)号：US20040069959A1
公开(公告)日：2004-04-15
申请号：US10716472
申请日：2003-11-20
申请人： Hitachi, Ltd.
发明人： Hiroshi Akiyama , Hiroshi Kubo , Kazuo Hiramoto
IPC分类号： A61N005/10
CPC分类号： H05H7/04 , A61N5/10 , A61N5/1043 , A61N2005/1087 , G21K1/093
摘要： A power supply for applying a voltage to a scanning electromagnet for deflecting a charged particle beam has a first power supply unit having no filter and a second power supply unit having a filter. When an irradiation position of the charged particle beam in an irradiation object is moved, the first power supply unit, namely a power supply unit having no filter, is used to apply the voltage to the scanning electromagnet, so that an exciting current flowing in the scanning electromagnet can be changed in a short time. Further, when the irradiation position of the charged particle beam is maintained, the second power supply is used to apply a voltage whose pulsating component was removed to the scanning electromagnet, so that the exciting current flowing in the scanning electromagnet can be controlled precisely. Consequently, the charged particle beam can be applied uniformly to the irradiation object and an irradiation time of the charged particle beam to the irradiation object can be curtailed.
摘要翻译：用于向扫描电磁体施加电压以使带电粒子束偏转的电源具有不具有滤波器的第一电源单元和具有滤波器的第二电源单元。当照射物体中的带电粒子束的照射位置移动时，使用第一电源单元即不具有滤波器的电源单元将电压施加到扫描电磁体，使得在扫描电磁铁可以在短时间内改变。此外，当保持带电粒子束的照射位置时，使用第二电源将脉冲分量除去的电压施加到扫描电磁体，使得能够精确地控制在扫描电磁体中流动的励磁电流。因此，可以将带电粒子束均匀地施加到照射物体，并且可以减少带电粒子束对照射物体的照射时间。

3. 发明申请

US20040062354A1 Multi-leaf collimator and medical system including accelerator 失效
公开(公告)号：US20040062354A1
公开(公告)日：2004-04-01
申请号：US10676063
申请日：2003-10-02
申请人： Hitachi, Ltd.
发明人： Kohei Kato , Hiroshi Akiyama , Masaki Yanagisawa
IPC分类号： G21K001/04
CPC分类号： A61N5/1042 , G21K1/04 , G21K1/046
摘要： The invention is intended to shorten a positioning time required for forming an irradiation area with high accuracy using a number of leaf plates, and to reduce physical and mental burdens imposed on patients. A multi-leaf collimator comprises leaf plate driving body each including a plurality of movable leaf plates and provided respectively on one side and the other side, the plurality of leaf plates of the leaf plate driver on one side and the plurality of leaf plates of the leaf plate driver on the other side being disposed in an opposing relation to form an irradiation field of a radiation beam between the opposing leaf plates. Each of the leaf plate driving body includes a motor provided in common to the plurality of leaf plates. Driving force of the motor can be transmitted to the plurality of leaf plates at the same time through a pinion gear, upper and lower air cylinders, and upper and lower guides. Also, the driving force can be cut off selectively for each leaf plate.

4. 发明申请

US20030057382A1 Charged particle beam irradiation equipment and control method thereof 失效
标题翻译：带电粒子束照射设备及其控制方法
公开(公告)号：US20030057382A1
公开(公告)日：2003-03-27
申请号：US10287656
申请日：2002-11-05
申请人： Hitachi, Ltd.
发明人： Hiroshi Akiyama , Hiroshi Kubo , Kazuo Hiramoto
IPC分类号： G21K005/00
CPC分类号： H05H7/04 , A61N5/10 , A61N5/1043 , A61N2005/1087 , G21K1/093
摘要： A power supply for applying a voltage to a scanning electromagnet for deflecting a charged particle beam has a first power supply unit having no filter and a second power supply unit having a filter. When an irradiation position of the charged particle beam in an irradiation object is moved, the first power supply unit, namely a power supply unit having no filter, is used to apply the voltage to the scanning electromagnet, so that an exciting current flowing in the scanning electromagnet can be changed in a short time. Further, when the irradiation position of the charged particle beam is maintained, the second power supply is used to apply a voltage whose pulsating component was removed to the scanning electromagnet, so that the exciting current flowing in the scanning electromagnet can be controlled precisely. Consequently, the charged particle beam can be applied uniformly to the irradiation object and an irradiation time of the charged particle beam to the irradiation object can be curtailed.
摘要翻译：用于向扫描电磁体施加电压以使带电粒子束偏转的电源具有不具有滤波器的第一电源单元和具有滤波器的第二电源单元。当照射物体中的带电粒子束的照射位置移动时，使用第一电源单元即不具有滤波器的电源单元将电压施加到扫描电磁体，使得在扫描电磁铁可以在短时间内改变。此外，当保持带电粒子束的照射位置时，使用第二电源将脉冲分量除去的电压施加到扫描电磁体，使得能够精确地控制在扫描电磁体中流动的励磁电流。因此，可以将带电粒子束均匀地施加到照射物体，并且可以减少带电粒子束对照射物体的照射时间。

5. 发明申请

US20020030164A1 Charged particle beam irradiation equipment 审中-公开
标题翻译：带电粒子束照射设备
公开(公告)号：US20020030164A1
公开(公告)日：2002-03-14
申请号：US09949849
申请日：2001-09-12
申请人： Hitachi, Ltd.
发明人： Hiroshi Akiyama , Koji Matsuda , Kazuo Hiramoto , Kohei Kato , Kazumichi Suzuki
IPC分类号： A61N005/00 , G21G005/00
CPC分类号： A61N5/1078 , A61N5/10 , A61N2005/1087 , A61N2005/1095 , A61N2005/1096 , G21K5/04
摘要： A charged particle beam irradiation equipment enable to reduce the cost in case of irradiating the beam to the target object in plural directions. The irradiation nozzle parts 105a to 105c comprising a wobbler electromagnet, a scatterer, a range modulator, a patient collimator and a patient bolus are shared by plural irradiation ports 102a and 102b providing charged particle beams to the irradiation object in plural different directions.
摘要翻译：带电粒子束照射设备能够在多个方向向目标物体照射光束的情况下降低成本。包括摆动电磁体，散射体，范围调制器，患者准直器和患者推注物的照射喷嘴部分105a至105c由向多个不同方向的照射物体提供带电粒子束的多个照射端口102a和102b共享。

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