WO2017032345A1 - Conformal intensity-modulated radiation therapy device - Google Patents

Conformal intensity-modulated radiation therapy device Download PDF

Info

Publication number
WO2017032345A1
WO2017032345A1 PCT/CN2016/100811 CN2016100811W WO2017032345A1 WO 2017032345 A1 WO2017032345 A1 WO 2017032345A1 CN 2016100811 W CN2016100811 W CN 2016100811W WO 2017032345 A1 WO2017032345 A1 WO 2017032345A1
Authority
WO
WIPO (PCT)
Prior art keywords
source
housing
door
shielding
conformal intensity
Prior art date
Application number
PCT/CN2016/100811
Other languages
French (fr)
Chinese (zh)
Inventor
刘海峰
Original Assignee
西安大医数码技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西安大医数码技术有限公司 filed Critical 西安大医数码技术有限公司
Publication of WO2017032345A1 publication Critical patent/WO2017032345A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy

Definitions

  • the invention relates to the field of radiotherapy devices, in particular to a conformal intensity-modulating radiotherapy device.
  • Three-dimensional conformal radiotherapy is a high-precision radiotherapy that uses CT images to reconstruct a three-dimensional tumor structure.
  • the high dose is achieved.
  • the distribution shape of the region is consistent with the shape of the target region in the three-dimensional direction (front, rear, left and right, and up and down directions), and at the same time, the amount of normal tissue surrounding the lesion is reduced.
  • the treatment head is the core part.
  • the existing conformal treatment head mostly uses a medical linear accelerator as a radiation source.
  • the cost of equipment for linear accelerator radiation therapy is higher, while the fixed asset investment for cobalt-60 therapy machine radiation therapy is lower. Therefore, some manufacturers and consumers are still willing to choose cobalt-60 treatment machine.
  • the existing Cobalt-60 treatment machine is complicated and very cumbersome, which is not conducive to installation and transportation.
  • the present invention provides a conformal intensity-modulating radiotherapy apparatus.
  • An embodiment of the present invention provides a conformal intensity-modulating radiotherapy apparatus, comprising: a housing formed with a receiving space and a shielding cavity; a shield filled in the shielding cavity; and a rotating carrier body received in the a shielding rod is received in the rotating carrier; a source body is received at a bottom end of the shielding rod for carrying a radiation source; a first driving portion is disposed on the housing, and the driving station is Rotating the carrier body to rotate about its rotation axis, so that the radiation source is switched between the open source position and the off source position; the pre-collimation body is disposed at the exit end of the radiation source, including a collimation hole, When the radioactive source is in the open source position, the collimating hole is opposite to the radioactive source; the shielding door is disposed on a side of the pre-collimator away from the radioactive source, and is aligned with the radioactive source; And a multi-leaf collimator disposed outside the housing and facing the screen door.
  • a conformal intensity modulated radiation therapy system including a roller frame and at least one of the above-described conformal intensity modulated radiation therapy devices disposed on a drum frame and capable of following Rotating the drum frame, the housing of the conformal intensity-modulating radiotherapy device is oppositely disposed with two connecting portions, and the connecting portion is slidably connected with the drum frame, so that the conformal intensity-modulating radiotherapy device can be The central axis of the drum frame moves upward.
  • the conformal intensity-modulating radiotherapy apparatus of the present invention has a simple and compact structure and is easy to install and transport.
  • FIG. 1 is a schematic structural view of a conformal intensity-modulating radiotherapy apparatus according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view of the conformal intensity modulated radiation therapy device of Figure 1;
  • FIG. 3 is a schematic structural view of a shield door of the conformal intensity modulated radiotherapy apparatus of FIG. 1;
  • FIG. 4 is a schematic structural view of a conformal intensity-modulated radiotherapy system according to an embodiment of the present invention.
  • the present invention provides a conformal intensity-modulating radiotherapy apparatus 100 including a housing 10, a shield 20, a rotating carrier body 30, a shielding rod 40, a source body 50, and a first driving.
  • the housing 10 houses the shield 20, the rotating carrier body 30, the shield bar 40, the source body 50, the second driving portion, the pre-collimator 80, and the screen door 90.
  • the shield 20 and a portion of the housing 10 surround the rotating carrier body 30.
  • the shielding rod 40 and the source body 50 are housed in the rotating carrier body 30, and the source body 50 is located at the bottom end of the shielding rod 40.
  • the rotating carrier body 30 can drive the shield bar 40 and the source body 50 to rotate within the housing 10 under the driving of the first driving portion 60.
  • the pre-collimator 80 is disposed between the source body 50 and the screen door 90.
  • the multi-leaf collimator 110 is disposed outside the housing 10 and aligns the screen door 90.
  • the second driving portion drives the screen door 90 and the multi-leaf collimator 110 to rotate, and the third driving portion 120 is configured to drive the multi-leaf collimator 110 to perform conformal adjustment.
  • the screen door 90 can also be disposed in the housing 10 outer.
  • the housing 10 is a support member of the entire conformal intensity-modulating radiotherapy apparatus 100, and the external shape thereof can be specifically designed according to equipment requirements, functional requirements, etc., to better achieve a therapeutic effect.
  • the housing 10 has an irregular shape, and is formed with a receiving space 11 and a shielding cavity 12 for receiving the shielding body 20, and the receiving space 11 is used for Other components such as the rotating carrier body 30, the shielding bar 40, the source body 50, the pre-collimator 80, and the shielding door 90 are housed.
  • the housing 10 includes an integrally formed lower half 13 and upper half 14.
  • the lower half portion 13 has a rectangular parallelepiped shape
  • the upper half portion 14 has a substantially truncated outer shape.
  • the accommodating space 11 includes a first accommodating space 111 and a second accommodating space 112.
  • the first accommodating space 111 is formed in the lower half 13 of the casing 10, and the second accommodating space 112 is formed.
  • the second receiving space 112 is formed with a circular opening 113 in the housing 10.
  • the first receiving space 111 accommodates the pre-collimation body 80 and the screen door 90
  • the second receiving space 112 houses the rotating carrier body 30 , the shielding rod 40 , and the source body 50 .
  • the shielding cavity 12 and the second receiving space 112 are separated by a side wall of the partial housing 10.
  • the shielding cavity 12 and the side wall of the partial housing 10 surround the second receiving space 112.
  • a through hole 15 is defined in the bottom surface of the lower half 13 of the casing 10 for the radiation passing through the screen door 90 to be emitted outside the casing.
  • the shield 20 is filled in the shielding cavity 12 such that the shield 20 and the housing 10 enclose the rotating source body 50 to shield.
  • the shield 20 is lead. It will be appreciated that in other embodiments, other materials with better shielding properties may be filled inside the housing 10.
  • the rotary carrier body 30 is mounted in the second housing space 112 by a bearing (not shown), and is rotated by the first driving unit 60.
  • the rotating carrier body 30 has a cylindrical shape, and the eccentric hole 31 is opened in the rotating carrier body 30.
  • the shielding rod 40 is housed in the eccentric hole 31 and rotates following the rotating carrier body 30.
  • the material of the shielding rod 40 is tungsten or a tungsten alloy.
  • the source body 50 is disposed at a bottom end of the shielding rod 40 and is received in the eccentric hole 31 for carrying a radiation source.
  • the source body 50 is a rectangular parallelepiped formed by a plurality of Co-60 sources, and the largest surface of the source body 50 faces the treatment center, and the conformal intensity-modulated radiotherapy apparatus 100 follows the roller (FIG. 3 will further Description) When rotated, the penumbra in each direction is made smaller.
  • the shield bar 40 and the source body 50 are rotatable with the rotary source carrier 30.
  • the first driving portion 60 is disposed on the housing 10 to drive the rotating carrier body 30 around The body rotates about the axis, thereby switching the source between the open source and the off source. More specifically, the first driving unit 60 is fixed to the opening side of the second housing space 112. In this embodiment, the first driving portion 60 is a motor, and the motor drives the rotating carrier body 30 to rotate by a motor bevel gear.
  • the pre-collimator 80 is fixedly disposed at an exit end of the radiation source, and is formed with a collimation hole 81 for initially guiding the radiation of the radiation source.
  • a specific position that is, an open source position
  • the source on the source body 50 is aligned with the collimating hole 81 of the pre-collimator 80.
  • the rotating carrier body 30 is rotated to another specific position, that is, the source position is turned off, the radiation source is deviated from the collimating hole 81.
  • the screen door 90 is disposed on a side of the pre-collimation body 80 away from the radiation source, and is disposed opposite the radiation source.
  • the screen door 90 is used to shield when the source is in the off source.
  • the rotating source body 30, the pre-collimator 80, and the shielding door 90 can be used to shield the radiation to ensure the safety of the surrounding environment.
  • the shielding door 90 is made of tungsten or an alloy thereof.
  • the screen door 90 includes two fixed door panels 91, two moving door panels 92, and a door frame (not shown). The two fixed door panels 91 are vertically engaged in the same plane on the moving door panel 92, respectively. on.
  • the fixed door panel 91 is fixedly coupled to the door frame
  • the moving door panel 92 is coupled to the door frame by a sliding rail 93
  • the moving door panel 92 is movable relative to the door frame.
  • the door frame is coupled to the housing 10 by bearings such that the screen door 90 is rotatable relative to the housing 10.
  • the intermediate intersection position of the moving door panel 92 and the fixed door panel 91 can surround a square opening, and the opening size can be adjusted by adjusting the position of the moving door panel 92.
  • the opening size opens to a predetermined width and ensures that no unintended ray escapes.
  • the rotating source body 50, the pre-collimation body 80, and the shielding door 90 are sequentially closed to perform multiple shielding on the radiation.
  • the multi-leaf collimator 110 is disposed outside the housing 10 and is opposite the screen door 90.
  • a through hole 15 in the bottom surface of the casing 10 faces the collimating hole 81 of the shielding door 90 and the pre-collimating body 80, and the multi-leaf collimator 110 is disposed on both sides of the through hole 15.
  • the multi-leaf collimator 110 can also rotate about the central axis of the collimating hole 81 to make the transformation of the multi-leaf collimator 110 more flexible.
  • the second driving portion is disposed on the housing 10 and is capable of simultaneously driving the screen door 90 and the multi-leaf collimator 110 to rotate relative to the housing, thereby being able to provide more The ray exits the shape.
  • the multi-leaf collimator 110 is coupled to a third driving portion 120, and the third driving portion 120 is composed of a plurality of small motors for driving respective blade movements of the multi-leaf collimator 110 to complete conformation .
  • the multi-leaf collimator 110 and the second drive portion can also be disposed within the housing 10.
  • the present invention also provides a conformal intensity modulated radiation therapy system 200 comprising a roller frame 201 and at least one of the above-described conformal intensity modulated radiation therapy devices 100.
  • the conformal intensity modulated radiation therapy device 100 is disposed on the drum frame 201 and is capable of following the rotation of the drum frame 201.
  • the housing 10 of the conformal intensity-modulated radiotherapy apparatus 100 is oppositely disposed with two connecting portions 17 (please refer to FIG. 1 ), and the connecting portion 17 is slidably connected with the roller frame 201 so that the suitable The shape-modulated radiotherapy apparatus 100 is movable in the center axis of the drum frame 201 to change the incident angle by axial swing.
  • the conformal intensity-modulating radiotherapy apparatus 100 of the present invention has a simple and compact structure and is easy to install and transport.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

Provided is a conformal intensity-modulated radiation therapy device, comprising: a housing, formed with an accommodating space and a shielding cavity; shielding material, filled within the shielding cavity; a rotary source-carrying body, accommodated within the accommodating space; a shielding rod, accommodated within the rotary source-carrying body; a source body, accommodated at a bottom end of the shielding rod and used for carrying a radiation source; a first driving portion, arranged on the housing and driving the rotary source-carrying body to rotate around a rotary axis thereof so that the radiation source switches between an open source position and a closed source position; a pre-collimation body, arranged at an emission end of the radiation source and comprising a collimation hole, the collimation hole directly facing the radiation source when the radiation source is in the open source position; a shielding door, arranged at the side of the pre-collimation body away from the radiation source and directly facing the radiation source; a multi-leaf collimator, arranged outside the housing and directly facing the shielding door. Also provided is a conformal intensity-modulated radiation therapy system.

Description

适形调强放疗装置Conformal intensity-modulated radiotherapy device 技术领域Technical field
本发明涉及放疗器械领域，特别是涉及一种适形调强放疗装置。The invention relates to the field of radiotherapy devices, in particular to a conformal intensity-modulating radiotherapy device.
背景技术Background technique
三维适形放射治疗是一种高精度的放射治疗，利用CT图像重建三维的肿瘤结构，通过在不同方向设置一系列不同的照射野，并采用与病灶形状一致的适形挡铅，使得高剂量区的分布形状在三维方向(前后、左右、上下方向)上与靶区形状一致，同时使得病灶周围正常组织的受量降低。Three-dimensional conformal radiotherapy is a high-precision radiotherapy that uses CT images to reconstruct a three-dimensional tumor structure. By setting a series of different irradiation fields in different directions, and adopting a conformal lead that conforms to the shape of the lesion, the high dose is achieved. The distribution shape of the region is consistent with the shape of the target region in the three-dimensional direction (front, rear, left and right, and up and down directions), and at the same time, the amount of normal tissue surrounding the lesion is reduced.
对于三维适形放疗***来说，治疗头是核心的部分。现有的适形治疗头多使用医用直线加速器作为放射源。然而，开展直线加速器放射治疗的装备前成本较高，而钴-60治疗机放射治疗的固定资产投入较低，因此，部分厂商和消费者还是愿意选择钴-60治疗机。但是，现有的钴-60治疗机结构复杂且非常笨重，不利于安装和运输。For a three-dimensional conformal radiotherapy system, the treatment head is the core part. The existing conformal treatment head mostly uses a medical linear accelerator as a radiation source. However, the cost of equipment for linear accelerator radiation therapy is higher, while the fixed asset investment for cobalt-60 therapy machine radiation therapy is lower. Therefore, some manufacturers and consumers are still willing to choose cobalt-60 treatment machine. However, the existing Cobalt-60 treatment machine is complicated and very cumbersome, which is not conducive to installation and transportation.
发明内容Summary of the invention
为解决上述技术问题，本发明提供了一种适形调强放疗装置。In order to solve the above technical problems, the present invention provides a conformal intensity-modulating radiotherapy apparatus.
本发明一实施例提供一种适形调强放疗装置，包括：壳体，形成有一个收容空间以及一个屏蔽腔；屏蔽物，填充在所述屏蔽腔内；旋转载源体，收容在所述收容空间内；屏蔽棒，收容在所述旋转载源体内；源体，收容在所述屏蔽棒的底端，用于承载放射源；第一驱动部，设置在所述壳体上，驱动所述旋转载源体绕其旋转轴旋转，使所述放射源在开源位和关源位之间切换；预准直体，设置在所述放射源的出射端，包括一准直孔，当所述放射源在开源位时，所述准直孔与所述放射源正对；屏蔽门，设置在所述预准直体远离所述放射源的一侧，且对正所述放射源设置；以及多叶准直器，设置在所述壳体外，并与所述屏蔽门正对。 An embodiment of the present invention provides a conformal intensity-modulating radiotherapy apparatus, comprising: a housing formed with a receiving space and a shielding cavity; a shield filled in the shielding cavity; and a rotating carrier body received in the a shielding rod is received in the rotating carrier; a source body is received at a bottom end of the shielding rod for carrying a radiation source; a first driving portion is disposed on the housing, and the driving station is Rotating the carrier body to rotate about its rotation axis, so that the radiation source is switched between the open source position and the off source position; the pre-collimation body is disposed at the exit end of the radiation source, including a collimation hole, When the radioactive source is in the open source position, the collimating hole is opposite to the radioactive source; the shielding door is disposed on a side of the pre-collimator away from the radioactive source, and is aligned with the radioactive source; And a multi-leaf collimator disposed outside the housing and facing the screen door.
本发明另一实施例提供一种适形调强放疗***，包括滚筒机架以及至少一个上述的适形调强放疗装置，所述适形调强放疗装置设置在滚筒机架上且能够跟随所述滚筒机架旋转，所述适形调强放疗装置的壳体外相对设置有两个连接部，所述连接部与所述滚筒机架滑动连接，使得所述适形调强放疗装置能够在所述滚筒机架的中心轴线方面上移动。Another embodiment of the present invention provides a conformal intensity modulated radiation therapy system including a roller frame and at least one of the above-described conformal intensity modulated radiation therapy devices disposed on a drum frame and capable of following Rotating the drum frame, the housing of the conformal intensity-modulating radiotherapy device is oppositely disposed with two connecting portions, and the connecting portion is slidably connected with the drum frame, so that the conformal intensity-modulating radiotherapy device can be The central axis of the drum frame moves upward.
本发明的适形调强放疗装置结构简单且紧凑，容易进行安装和运输。The conformal intensity-modulating radiotherapy apparatus of the present invention has a simple and compact structure and is easy to install and transport.
附图说明DRAWINGS
图1是本发明实施例提供的一种适形调强放疗装置的结构示意图；1 is a schematic structural view of a conformal intensity-modulating radiotherapy apparatus according to an embodiment of the present invention;
图2是图1的适形调强放疗装置的剖面示意图；Figure 2 is a cross-sectional view of the conformal intensity modulated radiation therapy device of Figure 1;
图3是图1的适形调强放疗装置的屏蔽门的结构示意图；3 is a schematic structural view of a shield door of the conformal intensity modulated radiotherapy apparatus of FIG. 1;
图4是本发明实施例提供的一种适形调强放疗***的结构示意图。4 is a schematic structural view of a conformal intensity-modulated radiotherapy system according to an embodiment of the present invention.
具体实施方式detailed description
下面结合具体实施方式对本发明的技术方案作进一步更详细的描述。显然，所描述的实施方式仅仅是本发明的一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施方式，都应属于本发明保护的范围。The technical solution of the present invention will be further described in detail below in conjunction with specific embodiments. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.
请参阅图1与图2，本发明提供一实施例的适形调强放疗装置100，其包括壳体10、屏蔽物20、旋转载源体30、屏蔽棒40、源体50、第一驱动部60、预准直体80、屏蔽门90、多叶准直器110、第二驱动部(图未示)以及第三驱动部120。所述壳体10***述屏蔽物20、旋转载源体30、屏蔽棒40、源体50、第二驱动部、预准直体80和屏蔽门90。所述屏蔽物20和部分所述壳体10环绕所述旋转载源体30。所述屏蔽棒40和源体50收容在所述旋转载源体30内，且所述源体50位于所述屏蔽棒40底端。在所述第一驱动部60的驱动下，所述旋转载源体30可带动所述屏蔽棒40和源体50在所述壳体10内旋转。所述预准直体80设置在所述源体50和屏蔽门90之间。所述多叶准直器110设置在所述壳体10外，且对正所述屏蔽门90。第二驱动部驱动所述屏蔽门90和多叶准直器110旋转，所述第三驱动部120用于驱动所述多叶准直器110进行适形调整。Referring to FIG. 1 and FIG. 2, the present invention provides a conformal intensity-modulating radiotherapy apparatus 100 including a housing 10, a shield 20, a rotating carrier body 30, a shielding rod 40, a source body 50, and a first driving. The portion 60, the pre-collimator 80, the screen door 90, the multi-leaf collimator 110, the second driving portion (not shown), and the third driving portion 120. The housing 10 houses the shield 20, the rotating carrier body 30, the shield bar 40, the source body 50, the second driving portion, the pre-collimator 80, and the screen door 90. The shield 20 and a portion of the housing 10 surround the rotating carrier body 30. The shielding rod 40 and the source body 50 are housed in the rotating carrier body 30, and the source body 50 is located at the bottom end of the shielding rod 40. The rotating carrier body 30 can drive the shield bar 40 and the source body 50 to rotate within the housing 10 under the driving of the first driving portion 60. The pre-collimator 80 is disposed between the source body 50 and the screen door 90. The multi-leaf collimator 110 is disposed outside the housing 10 and aligns the screen door 90. The second driving portion drives the screen door 90 and the multi-leaf collimator 110 to rotate, and the third driving portion 120 is configured to drive the multi-leaf collimator 110 to perform conformal adjustment.
可以理解的是，在其他实施例中，所述屏蔽门90还可以设置在壳体10之 外。It can be understood that in other embodiments, the screen door 90 can also be disposed in the housing 10 outer.
所述壳体10是整个适形调强放疗装置100的支撑件，其外部形状可根据设备需求、功能要求等进行特定设计，以更好实现治疗效果。本实施例中，所述壳体10具有不规则的外形，并形成有一个收容空间11以及一个屏蔽腔12，所述屏蔽腔12用于***述屏蔽物20，所述收容空间11用于收容其他部件，如旋转载源体30、屏蔽棒40、源体50、预准直体80和屏蔽门90。更具体的，所述壳体10包括一体成型的下半部13和上半部14。本实施例中，所述下半部13的外形呈长方体状，所述上半部14的外形大致呈圆台状。所述收容空间11包括相互连通的第一收容空间111和第二收容空间112，所述第一收容空间111形成在所述壳体10的下半部13内，所述第二收容空间112形成在所述壳体10的上半部14内，且所述第二收容空间112在所述壳体10上形成有一个圆形开口113。所述第一收容空间111***述预准直体80和屏蔽门90，所述第二收容空间112***述旋转载源体30、屏蔽棒40、源体50。所述屏蔽腔12与所述第二收容空间112之间被部分壳体10的侧壁隔开。本实施例中，所述屏蔽腔12和所述部分壳体10侧壁环绕所述第二收容空间112。此外，所述壳体10下半部13的底面上开设有一个通孔15，供经过屏蔽门90的射线出射到壳体外。The housing 10 is a support member of the entire conformal intensity-modulating radiotherapy apparatus 100, and the external shape thereof can be specifically designed according to equipment requirements, functional requirements, etc., to better achieve a therapeutic effect. In this embodiment, the housing 10 has an irregular shape, and is formed with a receiving space 11 and a shielding cavity 12 for receiving the shielding body 20, and the receiving space 11 is used for Other components such as the rotating carrier body 30, the shielding bar 40, the source body 50, the pre-collimator 80, and the shielding door 90 are housed. More specifically, the housing 10 includes an integrally formed lower half 13 and upper half 14. In the present embodiment, the lower half portion 13 has a rectangular parallelepiped shape, and the upper half portion 14 has a substantially truncated outer shape. The accommodating space 11 includes a first accommodating space 111 and a second accommodating space 112. The first accommodating space 111 is formed in the lower half 13 of the casing 10, and the second accommodating space 112 is formed. In the upper half 14 of the housing 10, and the second receiving space 112 is formed with a circular opening 113 in the housing 10. The first receiving space 111 accommodates the pre-collimation body 80 and the screen door 90 , and the second receiving space 112 houses the rotating carrier body 30 , the shielding rod 40 , and the source body 50 . The shielding cavity 12 and the second receiving space 112 are separated by a side wall of the partial housing 10. In this embodiment, the shielding cavity 12 and the side wall of the partial housing 10 surround the second receiving space 112. In addition, a through hole 15 is defined in the bottom surface of the lower half 13 of the casing 10 for the radiation passing through the screen door 90 to be emitted outside the casing.
所述屏蔽物20填充在所述屏蔽腔12内，使得屏蔽物20与壳体10将旋转源体50包在中间，起屏蔽作用。本实施例中，所述屏蔽物20为铅。可以理解，在其他实施例中，可在壳体10内部填充其他屏蔽性能更好的物质。The shield 20 is filled in the shielding cavity 12 such that the shield 20 and the housing 10 enclose the rotating source body 50 to shield. In this embodiment, the shield 20 is lead. It will be appreciated that in other embodiments, other materials with better shielding properties may be filled inside the housing 10.
所述旋转载源体30通过轴承(图未示)安装在所述第二收容空间112内，并通过所述第一驱动部60驱动而进行旋转。本实施例中，所述旋转载源体30呈圆柱状，所述旋转载源体30内开设有偏心孔31。The rotary carrier body 30 is mounted in the second housing space 112 by a bearing (not shown), and is rotated by the first driving unit 60. In this embodiment, the rotating carrier body 30 has a cylindrical shape, and the eccentric hole 31 is opened in the rotating carrier body 30.
所述屏蔽棒40收容在所述偏心孔31内，并跟随所述旋转载源体30旋转。本实施例中，所述屏蔽棒40的材料是钨或钨合金。The shielding rod 40 is housed in the eccentric hole 31 and rotates following the rotating carrier body 30. In this embodiment, the material of the shielding rod 40 is tungsten or a tungsten alloy.
所述源体50设置在所述屏蔽棒40的底端且收容在所述偏心孔31内，用于承载放射源。本实施例中，源体50呈长方体，由多颗Co-60源聚集而成，并将源体50的最大面正对治疗中心，当适形调强放疗装置100随滚筒(图3将进一步描述)旋转时，就会使各方向的半影更小。屏蔽棒40和源体50可随旋转源载体30回转。The source body 50 is disposed at a bottom end of the shielding rod 40 and is received in the eccentric hole 31 for carrying a radiation source. In this embodiment, the source body 50 is a rectangular parallelepiped formed by a plurality of Co-60 sources, and the largest surface of the source body 50 faces the treatment center, and the conformal intensity-modulated radiotherapy apparatus 100 follows the roller (FIG. 3 will further Description) When rotated, the penumbra in each direction is made smaller. The shield bar 40 and the source body 50 are rotatable with the rotary source carrier 30.
所述第一驱动部60设置在所述壳体10上，以驱动所述旋转载源体30绕自 身旋转轴旋转，从而使所述放射源在开源位和关源位之间切换。更具体的，述第一驱动部60固定在所述第二收容空间112的开口一侧。本实施例中，所述第一驱动部60是一个电机，所述电机通过电机锥齿轮驱动所述旋转载源体30旋转。The first driving portion 60 is disposed on the housing 10 to drive the rotating carrier body 30 around The body rotates about the axis, thereby switching the source between the open source and the off source. More specifically, the first driving unit 60 is fixed to the opening side of the second housing space 112. In this embodiment, the first driving portion 60 is a motor, and the motor drives the rotating carrier body 30 to rotate by a motor bevel gear.
所述预准直体80固定设置在所述放射源的出射端，并且形成有一准直孔81，用于初步导正所述放射源的射线。当所述旋转载源体30旋转至特定位置，即开源位时，所述源体50上的放射源对准所述预准直体80的准直孔81。而当所述旋转载源体30旋转至另一特定位置，即关源位时，放射源偏离所述准直孔81。The pre-collimator 80 is fixedly disposed at an exit end of the radiation source, and is formed with a collimation hole 81 for initially guiding the radiation of the radiation source. When the rotating carrier body 30 is rotated to a specific position, that is, an open source position, the source on the source body 50 is aligned with the collimating hole 81 of the pre-collimator 80. When the rotating carrier body 30 is rotated to another specific position, that is, the source position is turned off, the radiation source is deviated from the collimating hole 81.
请结合图3，所述屏蔽门90设置在所述预准直体80远离所述放射源的一侧，且对正所述放射源设置。所述屏蔽门90用于当所述放射源位于关源位时，起到屏蔽作用。尤其是，当治疗头处于非治疗状态时，可通过所述旋转载源体30、预准直体80以及所述屏蔽门90，对射线做到多重屏蔽，保证周边环境安全。本实施例中，所述屏蔽门90的制造材料为钨或其合金。具体的，所述屏蔽门90包括两个固定门板91、两个移动门板92以及一个门框(图未示)，所述两个固定门板91在同一个平面分别垂直嵌接在所述移动门板92上。所述固定门板91与所述门框固定连接，所述移动门板92通过滑动导轨93与所述门框连接，且所述移动门板92可相对于所述门框移动。所述门框通过轴承与所述壳体10连接，使得所述屏蔽门90能够相对于所述壳体10旋转。当所述移动门板92相对于所述门框移动时，所述移动门板92和固定门板91的中间相交位置即能够围一个方形开口，通过调节移动门板92的位置，可调整开口大小。在治疗时，所述开口大小打开到预定的宽度，且保证没有非预期的射线逸出。而在非治疗状态时，依次关闭旋转源体50、预准直体80、屏蔽门90，对射线做到多重屏蔽。Referring to FIG. 3, the screen door 90 is disposed on a side of the pre-collimation body 80 away from the radiation source, and is disposed opposite the radiation source. The screen door 90 is used to shield when the source is in the off source. In particular, when the treatment head is in a non-treatment state, the rotating source body 30, the pre-collimator 80, and the shielding door 90 can be used to shield the radiation to ensure the safety of the surrounding environment. In the embodiment, the shielding door 90 is made of tungsten or an alloy thereof. Specifically, the screen door 90 includes two fixed door panels 91, two moving door panels 92, and a door frame (not shown). The two fixed door panels 91 are vertically engaged in the same plane on the moving door panel 92, respectively. on. The fixed door panel 91 is fixedly coupled to the door frame, the moving door panel 92 is coupled to the door frame by a sliding rail 93, and the moving door panel 92 is movable relative to the door frame. The door frame is coupled to the housing 10 by bearings such that the screen door 90 is rotatable relative to the housing 10. When the moving door panel 92 moves relative to the door frame, the intermediate intersection position of the moving door panel 92 and the fixed door panel 91 can surround a square opening, and the opening size can be adjusted by adjusting the position of the moving door panel 92. Upon treatment, the opening size opens to a predetermined width and ensures that no unintended ray escapes. In the non-treatment state, the rotating source body 50, the pre-collimation body 80, and the shielding door 90 are sequentially closed to perform multiple shielding on the radiation.
所述多叶准直器110设置在所述壳体10外，并与所述屏蔽门90正对。所述壳体10底面上的通孔15对正所述屏蔽门90和所述预准直体80的准直孔81，所述多叶准直器110设置在所述通孔15两侧。本实施例中，所述多叶准直器110也可以绕准直孔81的中心轴线进行旋转，使多叶准直器110的变换更加灵活。更具体的，所述第二驱动部设置在所述壳体10上，并能够同时驱动所述屏蔽门90和多叶准直器110相对于所述壳体旋转，由此，能够提供更多的射线出射形状。所述多叶准直器110与第三驱动部120连接，所述第三驱动部120由多个小电机组成，用于驱动所述多叶准直器110的各个叶片移动，以完成适形。可 以理解的是，在一些实施例中，所述多叶准直器110以及所述第二驱动部也可设置在所述壳体10内。The multi-leaf collimator 110 is disposed outside the housing 10 and is opposite the screen door 90. A through hole 15 in the bottom surface of the casing 10 faces the collimating hole 81 of the shielding door 90 and the pre-collimating body 80, and the multi-leaf collimator 110 is disposed on both sides of the through hole 15. In this embodiment, the multi-leaf collimator 110 can also rotate about the central axis of the collimating hole 81 to make the transformation of the multi-leaf collimator 110 more flexible. More specifically, the second driving portion is disposed on the housing 10 and is capable of simultaneously driving the screen door 90 and the multi-leaf collimator 110 to rotate relative to the housing, thereby being able to provide more The ray exits the shape. The multi-leaf collimator 110 is coupled to a third driving portion 120, and the third driving portion 120 is composed of a plurality of small motors for driving respective blade movements of the multi-leaf collimator 110 to complete conformation . Can It is to be understood that in some embodiments, the multi-leaf collimator 110 and the second drive portion can also be disposed within the housing 10.
请参阅图4，本发明还提供一种适形调强放疗***200，其包括滚筒机架201以及至少一个上述的适形调强放疗装置100。所述适形调强放疗装置100设置在滚筒机架201上，且能够跟随所述滚筒机架201旋转。此外，所述适形调强放疗装置100的壳体10外相对设置有两个连接部17(请参阅图1)，所述连接部17与所述滚筒机架201滑动连接，使得所述适形调强放疗装置100能够在所述滚筒机架201的中心轴线方面上移动，从而通过轴向摆动来改变入射角。Referring to FIG. 4, the present invention also provides a conformal intensity modulated radiation therapy system 200 comprising a roller frame 201 and at least one of the above-described conformal intensity modulated radiation therapy devices 100. The conformal intensity modulated radiation therapy device 100 is disposed on the drum frame 201 and is capable of following the rotation of the drum frame 201. In addition, the housing 10 of the conformal intensity-modulated radiotherapy apparatus 100 is oppositely disposed with two connecting portions 17 (please refer to FIG. 1 ), and the connecting portion 17 is slidably connected with the roller frame 201 so that the suitable The shape-modulated radiotherapy apparatus 100 is movable in the center axis of the drum frame 201 to change the incident angle by axial swing.
本发明的适形调强放疗装置100，结构简单且紧凑，容易进行安装和运输。The conformal intensity-modulating radiotherapy apparatus 100 of the present invention has a simple and compact structure and is easy to install and transport.
以上所披露的仅为本发明实施方式中的较佳实施方式而已，当然不能以此来限定本发明的权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。 The above disclosure is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made by the claims of the present invention are still within the scope of the present invention.

Claims (10)

  1. 一种适形调强放疗装置，包括：A conformal intensity-modulating radiotherapy apparatus comprising:
    壳体，形成有一个收容空间以及一个屏蔽腔；The housing is formed with a receiving space and a shielding cavity;
    屏蔽物，填充在所述屏蔽腔内；a shield filled in the shielding cavity;
    旋转载源体，收容在所述收容空间内；Rotating the carrier body and housing the housing space;
    屏蔽棒，收容在所述旋转载源体内；a shielding rod is received in the rotating carrier;
    源体，收容在所述屏蔽棒的底端，用于承载放射源；a source body is received at a bottom end of the shielding rod for carrying a radioactive source;
    第一驱动部，设置在所述壳体上，驱动所述旋转载源体绕其旋转轴旋转，使所述放射源在开源位和关源位之间切换；a first driving portion disposed on the housing to drive the rotating carrier body to rotate about its rotation axis to switch the radiation source between an open source position and an off source position;
    预准直体，设置在所述放射源的出射端，包括一准直孔，当所述放射源在开源位时，所述准直孔与所述放射源正对；a pre-collimating body disposed at an exit end of the radiation source, comprising a collimating hole, the collimating hole being opposite to the radioactive source when the radioactive source is in an open source position;
    屏蔽门，设置在所述预准直体远离所述放射源的一侧，且对正所述放射源设置；以及a shielding door disposed on a side of the pre-collimator away from the radiation source and aligned with the radiation source;
    多叶准直器，设置在所述壳体外，并与所述屏蔽门正对。A multi-leaf collimator disposed outside the housing and facing the screen door.
  2. 根据权利要求1所述的适形调强放疗装置，其特征在于，所述壳体包括下半部和上半部，所述收容空间包括相互连通的第一收容空间和第二收容空间，所述第一收容空间形成在所述壳体的下半部内，所述第二收容空间形成在所述壳体的上半部内，所述屏蔽腔环绕所述第二收容空间，所述预准直体和屏蔽门收容在所述第一收容空间内，所述旋转载源体、屏蔽棒、源体收容在所述第二收容空间内。The conformal intensity-modulating radiotherapy apparatus according to claim 1, wherein the housing comprises a lower half and an upper half, and the receiving space comprises a first receiving space and a second receiving space communicating with each other. The first receiving space is formed in a lower half of the housing, the second receiving space is formed in an upper half of the housing, the shielding cavity surrounds the second receiving space, and the pre-collimation The body and the shielding door are housed in the first receiving space, and the rotating carrier, the shielding rod and the source body are housed in the second receiving space.
  3. 根据权利要求2所述的适形调强放疗装置，其特征在于，所述下半部的底面上开设有一个通孔，所述通孔对准所述屏蔽门和所述预准直体的准直孔，所述多叶准直器设置在所述通孔两侧。The conformal intensity-modulating radiotherapy apparatus according to claim 2, wherein a through hole is defined in a bottom surface of the lower half, the through hole being aligned with the shielding door and the pre-collimator A collimating hole, the multi-leaf collimator being disposed on both sides of the through hole.
  4. 根据权利要求2所述的适形调强放疗装置，其特征在于，所述下半部呈长方体状，所述上半部大致呈圆台状。The conformal intensity-modulating radiotherapy apparatus according to claim 2, wherein the lower half has a rectangular parallelepiped shape, and the upper half has a substantially truncated cone shape.
  5. 根据权利要求1所述的适形调强放疗装置，其特征在于，所述旋转载源体上开设有偏心孔，所述屏蔽棒以及源体收容在所述偏心孔内，并跟随所述旋转载源体旋转，当所述旋转载源体旋转至特定位置时，所述源体上的放射源对准所述预准直体的准直孔。The conformal intensity-modulating radiotherapy apparatus according to claim 1, wherein the rotating carrier body is provided with an eccentric hole, and the shielding rod and the source body are received in the eccentric hole and follow the rotation The transfer source rotates, and when the rotating carrier is rotated to a specific position, the source on the source is aligned with the collimating hole of the pre-collimator.
  6. 根据权利要求1所述的适形调强放疗装置，进一步包括第二驱动部，与 所述屏蔽门以及多叶准直器传动连接，以同时驱动所述屏蔽门以及多叶准直器相对于所述壳体旋转。The conformal intensity modulated radiation therapy device according to claim 1, further comprising a second driving portion, and The screen door and the multi-leaf collimator are drivingly coupled to simultaneously drive the screen door and the multi-leaf collimator to rotate relative to the housing.
  7. 根据权利要求6所述的适形调强放疗装置，其特征在于，所述第一驱动部固定在所述第二收容空间的开口一侧，所述第二驱动部设置在壳体上。The conformal intensity-modulating radiotherapy apparatus according to claim 6, wherein the first driving portion is fixed to an opening side of the second housing space, and the second driving portion is provided on a housing.
  8. 根据权利要求1所述的适形调强放疗装置，其特征在于，所述屏蔽门包括两个固定门板、两个移动门板以及一个门框，所述两个固定门板嵌接在所述移动门板上，所述固定门板与所述门框固定连接，所述移动门板通过滑动导轨与所述门框连接，且所述移动门板可沿所述滑动导轨相对于所述门框移动，所述门框通过轴承与所述壳体连接，当所述移动门板相对于所述门框移动时，所述移动门板和固定门板的中间位置形成一个开口，所述开口的大小通过调节移动门板的位置来调整。The conformal intensity-modulating radiotherapy apparatus according to claim 1, wherein said screen door comprises two fixed door panels, two moving door panels and a door frame, said two fixed door panels being embedded on said moving door panel The fixed door panel is fixedly connected to the door frame, the moving door panel is connected to the door frame by a sliding rail, and the moving door panel is movable relative to the door frame along the sliding rail, and the door frame passes through a bearing and a door The housing is connected, and when the moving door panel moves relative to the door frame, an intermediate position of the moving door panel and the fixed door panel forms an opening, and the size of the opening is adjusted by adjusting the position of the moving door panel.
  9. 根据权利要求1所述的适形调强放疗装置，其特征在于，所述多叶准直器与一第三驱动部传动连接，并在所述第三驱动部的驱动下进行适形调整。The conformal intensity-modulated radiotherapy apparatus according to claim 1, wherein the multi-leaf collimator is drivingly coupled to a third driving portion and is adapted to be adjusted by the driving of the third driving portion.
  10. 一种适形调强放疗***，包括滚筒机架以及至少一个如权利要求1～9项任一项所述的适形调强放疗装置，所述适形调强放疗装置设置在滚筒机架上且能够跟随所述滚筒机架旋转，所述适形调强放疗装置的壳体外相对设置有两个连接部，所述连接部与所述滚筒机架滑动连接，使得所述适形调强放疗装置能够在所述滚筒机架的中心轴线方面上移动。 A conformal intensity modulated radiation therapy system comprising a roller frame and at least one conformal intensity modulated radiation therapy device according to any one of claims 1-9, wherein the conformal intensity modulated radiation therapy device is disposed on a roller frame And being rotatable along the drum frame, the housing of the conformal intensity-modulating radiotherapy device is oppositely disposed with two connecting portions, and the connecting portion is slidably connected with the drum frame, so that the conformal intensity-modulated radiotherapy The device is movable in terms of the central axis of the drum frame.
PCT/CN2016/100811 2015-08-27 2016-09-29 Conformal intensity-modulated radiation therapy device WO2017032345A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510536246.5 2015-08-27
CN201510536246.5A CN105031832B (en) 2015-08-27 2015-08-27 Conformal modulating radiotherapy device

Publications (1)

Publication Number Publication Date
WO2017032345A1 true WO2017032345A1 (en) 2017-03-02

Family

ID=54439174

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/100811 WO2017032345A1 (en) 2015-08-27 2016-09-29 Conformal intensity-modulated radiation therapy device

Country Status (2)

Country Link
CN (2) CN105031832B (en)
WO (1) WO2017032345A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107837465A (en) * 2017-11-21 2018-03-27 西安大医数码科技有限公司 One kind stem apparatus and system
CN110326057A (en) * 2017-04-17 2019-10-11 西安大医集团有限公司 A kind of pick-and-place source tooling, intelligent carriage and pick-and-place source system
CN113813514A (en) * 2020-06-19 2021-12-21 西安大医集团股份有限公司 Source guiding assembly
US11698351B1 (en) 2022-07-29 2023-07-11 King Abdulaziz University Gamma radiography system and method of using a gamma radiography system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105031832B (en) * 2015-08-27 2018-08-21 西安大医集团有限公司 Conformal modulating radiotherapy device
CN107890612A (en) * 2017-12-05 2018-04-10 西安大医数码科技有限公司 One kind focuses on radiotheraphy device and equipment
CN108478942A (en) * 2018-05-10 2018-09-04 江南大学附属医院 A kind of oncology radiotherapeutic positioning device
CN111714791B (en) * 2020-06-19 2022-06-03 新里程医用加速器(无锡)有限公司 Radiotherapy device
WO2022121926A1 (en) * 2020-12-09 2022-06-16 西安大医集团股份有限公司 Source turn-off device and treatment head

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512813B1 (en) * 1999-05-03 2003-01-28 Franz Krispel Rotating stereotactic treatment system
CN1586670A (en) * 2004-09-15 2005-03-02 杭州华源伽玛医疗设备投资有限公司 Rotary closing type gamma ray radiator
CN2910260Y (en) * 2006-06-02 2007-06-13 珠海市和佳医疗设备有限公司 Radioactive source controller
CN104203343A (en) * 2013-02-28 2014-12-10 深圳市奥沃医学新技术发展有限公司 Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus
WO2015096572A1 (en) * 2013-12-25 2015-07-02 深圳市奥沃医学新技术发展有限公司 Radiotherapy equipment and laser verification device therefor
CN105031832A (en) * 2015-08-27 2015-11-11 西安大医数码技术有限公司 Intensity modulated radiation therapy apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588031A (en) * 1969-01-24 1971-06-28 Gen Electric Internally shielded teletherapy source
EP0810005B1 (en) * 1993-06-09 2000-09-27 Wisconsin Alumni Research Foundation Radiation therapy system
CN1296108C (en) * 2003-01-30 2007-01-24 武汉康桥医学新技术有限公司 Directional intensity ajustable radiation therapy apparatus
CN1785456A (en) * 2004-12-09 2006-06-14 深圳市益普生医疗设备发展有限公司 Method of reducing cobalt-bo machine geometric half image
EP2153448B1 (en) * 2007-05-24 2012-07-25 Elekta AB (publ) Collimation apparatus for radiotherapy
US9324468B2 (en) * 2010-08-23 2016-04-26 Varian Medical Systems, Inc. Multileaf collimators with transverse motion
CN203659451U (en) * 2013-12-05 2014-06-18 北京大基康明医疗设备有限公司 Double-focusing multi-leaf collimator
CN104784831B (en) * 2015-04-21 2018-09-07 苏州爱因智能设备有限公司 A kind of achievable full track mark radiotherapy equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512813B1 (en) * 1999-05-03 2003-01-28 Franz Krispel Rotating stereotactic treatment system
CN1586670A (en) * 2004-09-15 2005-03-02 杭州华源伽玛医疗设备投资有限公司 Rotary closing type gamma ray radiator
CN2910260Y (en) * 2006-06-02 2007-06-13 珠海市和佳医疗设备有限公司 Radioactive source controller
CN104203343A (en) * 2013-02-28 2014-12-10 深圳市奥沃医学新技术发展有限公司 Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus
WO2015096572A1 (en) * 2013-12-25 2015-07-02 深圳市奥沃医学新技术发展有限公司 Radiotherapy equipment and laser verification device therefor
CN105031832A (en) * 2015-08-27 2015-11-11 西安大医数码技术有限公司 Intensity modulated radiation therapy apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110326057A (en) * 2017-04-17 2019-10-11 西安大医集团有限公司 A kind of pick-and-place source tooling, intelligent carriage and pick-and-place source system
CN110326057B (en) * 2017-04-17 2023-09-15 西安大医集团股份有限公司 Get and put source frock, intelligent dolly and get and put source system
CN107837465A (en) * 2017-11-21 2018-03-27 西安大医数码科技有限公司 One kind stem apparatus and system
CN107837465B (en) * 2017-11-21 2024-05-14 西安大医集团股份有限公司 Source guiding device and system
CN113813514A (en) * 2020-06-19 2021-12-21 西安大医集团股份有限公司 Source guiding assembly
US11698351B1 (en) 2022-07-29 2023-07-11 King Abdulaziz University Gamma radiography system and method of using a gamma radiography system

Also Published As

Publication number Publication date
CN109107053A (en) 2019-01-01
CN109107053B (en) 2020-09-08
CN105031832B (en) 2018-08-21
CN105031832A (en) 2015-11-11

Similar Documents

Publication Publication Date Title
WO2017032345A1 (en) Conformal intensity-modulated radiation therapy device
EP3089787B1 (en) System for stereotactic intensity-modulated arc therapy
CN109432613B (en) Multi-source focusing therapy and conformal intensity modulated therapy radiotherapy equipment and collimator combination thereof
EP3064252B1 (en) Multipurpose radiotherapy system
WO2017020244A1 (en) Focussed radiotherapy apparatus and radiation therapy device
US7570739B2 (en) Radiotherapy apparatus and parts thereof
JP2014505548A5 (en)
US10406382B2 (en) Dual-axis ring gantry radiotherapy systems
US20070221869A1 (en) Radiotherapy apparatus
WO2020082654A1 (en) Composite double-rotation frame accelerator-based non-coplanar radiotherapy apparatus
WO2008076035A1 (en) Collimator
CN104271196A (en) Radiation therapy machine
US20210299479A1 (en) Proton therapy gantry
US7899155B2 (en) Stand for holding a radiation detector for a radiation therapy device
CN105705201B (en) Radiation source assemblies and treatment head and gamma knife with the radiation source assemblies
CN104225807A (en) Stereotactic radiotherapy device and implementation method thereof
CN114007687A (en) Radiation therapy system
CN210186257U (en) Radiotherapy system
CN218248157U (en) Cobalt source treatment head and double-head radiotherapy equipment
CN218280334U (en) Radiotherapy system
CN218220835U (en) Gamma knife radiotherapy system
US20230001237A1 (en) Monitor for a radiotherapy device
US20230022716A1 (en) Gantry having a retractable cover
US10653895B2 (en) Radiotherapy apparatus

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16838603

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16838603

Country of ref document: EP

Kind code of ref document: A1