CN113694401A - Ray bundle blocking device and radiotherapy equipment - Google Patents
Ray bundle blocking device and radiotherapy equipment Download PDFInfo
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- CN113694401A CN113694401A CN202110996436.0A CN202110996436A CN113694401A CN 113694401 A CN113694401 A CN 113694401A CN 202110996436 A CN202110996436 A CN 202110996436A CN 113694401 A CN113694401 A CN 113694401A
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 38
- 238000001959 radiotherapy Methods 0.000 title claims abstract description 27
- 230000005855 radiation Effects 0.000 claims abstract description 55
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000002596 correlated effect Effects 0.000 claims 1
- 238000010894 electron beam technology Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- 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
-
- 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
- A61N2005/1092—Details
- A61N2005/1094—Shielding, protecting against radiation
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- 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
The invention provides a ray bundle blocking device and radiotherapy equipment, wherein the ray bundle blocking device is used for testing the radiotherapy equipment and comprises a support frame and a ray shielding piece, and the bottom of the support frame is provided with a horse wheel component for driving the support frame to move or fix; ray shield sets up on the support frame and is used for shielding the bundle of rays that radiotherapy equipment produced, and the distance between ray shield and the bundle of rays export can be adjusted. The ray bundle blocking device is convenient and fast to move, simple to manufacture and low in cost, and can effectively block electron beams or X rays generated by the treatment head in the test process and meet the radiation protection requirement. According to the treatment head bundle outlet position, the mechanism is moved to place the treatment head bundle outlet about one meter, the wall of the test machine room is not required to be modified, and the mobility is convenient.
Description
Technical Field
The invention belongs to the technical field of radiotherapy equipment, and particularly relates to a ray bundle blocking device and radiotherapy equipment.
Background
At present, in the process of research and development and test of radiotherapy equipment, a treatment head needs to be horizontally placed for beam emitting test sometimes, and because electron beams or X rays generated by the treatment head are horizontally emitted and hit on the wall surface of a room when the treatment head is horizontally placed, the radiation protection requirements cannot be met due to the wall material and the thickness. Moreover, if some radiation shielding elements are used to block the radiation beam, the shielding elements are usually fixed, and when the position of the radiation beam emitted by the radiotherapy equipment changes, the blocking of the radiation beam by the fixed shielding elements will have a great influence, thereby affecting the shielding of the radiation beam.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention provides a ray bundle blocking device and radiotherapy equipment, and aims to solve the technical problem that the radiation protection requirement cannot be met due to the wall material and the thickness.
In order to achieve the above object, the present invention provides a beam blocking device for use in a test of a radiotherapy apparatus, the beam blocking device comprising:
the bottom of the supporting frame is provided with a horse wheel component for driving the supporting frame to move or fix; and
the ray shielding piece is arranged on the supporting frame and used for shielding ray beams generated by the radiotherapy equipment, and the distance between the ray shielding piece and the ray beam outlet can be adjusted.
In an embodiment of the invention, the radiation shield (2) is a radiation shield, a stainless steel piece or a concrete piece.
In an embodiment of the invention, the wheel assembly comprises a walking wheel, a rotating plate and a supporting plate, the walking wheel and the supporting plate are positioned on the same horizontal line, the supporting plate is rotatably connected to the bottom of the rotating plate, and the distance between the rotating plate and the supporting plate is adjustable to drive the supporting plate to contact with or separate from the ground.
In an embodiment of the present invention, the support frame is a frame-shaped structure, and a first mounting table for mounting the radiation shield is disposed on a top of the support frame.
In an embodiment of the present invention, an outer periphery of the radiation shield is covered with a cover, and the radiation shield is mounted on the first mounting stage through a fixing plate.
In an embodiment of the present invention, a plurality of handles are disposed around the radiation shield, the plurality of handles are fixedly connected to a bottom of the radiation shield, a holding portion of each handle extends from the bottom of the radiation shield and is bent toward an outer side of the radiation shield, and a holding space is formed on the holding portion.
In an embodiment of the invention, the thickness of the radiation shield is in a positive correlation with the energy level of the radiation beam.
In the embodiment of the invention, a second mounting table is arranged at the bottom of the support frame, and a balancing weight for adjusting the center of gravity is placed on the second mounting table.
In an embodiment of the present invention, a radiotherapy apparatus is further proposed, which includes a treatment head, and a beam blocking device as described above horizontally arranged at a distance from the treatment head, wherein the beam is irradiated on a treatment region of a patient through a beam limiting device arranged on the treatment head.
In an embodiment of the invention, the center of the beam spot generated by the treatment head coincides with the center of the ray shield of the ray beam blocking device.
Through the technical scheme, the ray beam blocking device provided by the embodiment of the invention has the following beneficial effects:
the top of the movable support frame is provided with a ray shielding piece which is used for blocking ray beams emitted from a treatment head of the radiotherapy equipment so that the radiotherapy equipment meets the radiation protection requirement in the research, development and test process; the whole support frame is driven to move by the aid of the Fermat wheel assembly at the bottom of the support frame, so that the distance between the ray shielding piece and a ray bundle outlet can be adjusted; when the test is started, the support frame needs to be fixed at a target position, the horse wheel assembly is directly adjusted, and the whole support frame is fixed on the ground. The ray bundle blocking device is convenient and fast to move, simple to manufacture and low in cost, and can effectively block electron beams or X rays generated by the treatment head in the test process and meet the radiation protection requirement.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of a beam stop according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a Foma wheel assembly of a beam stop apparatus according to an embodiment of the present invention;
fig. 3 is a schematic view of an installation structure of a ray shield in the ray beam blocking apparatus according to an embodiment of the present invention.
Description of the reference numerals
1 support frame 32 rotating plate
11 first mounting table 33 support plate
12 second mounting table 4 handle
2 ray shield 5 fixing plate
3 Fu horse wheel assembly 6 balancing weight
31 travelling wheel
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.
A beam blocking device according to the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1, in an embodiment of the present invention, a ray bundle blocking device is provided, which is used in a test of a radiotherapy apparatus, and includes a support frame 1 and a ray shield 2, wherein a wheel assembly 3 for driving the support frame 1 to move or fix is installed at the bottom of the support frame 1; ray shield 2 sets up on support frame 1 and is used for shielding the ray bundle that radiotherapy equipment produced, and the distance between ray shield 2 and the ray bundle export can be adjusted.
In the embodiment of the invention, the top of the movable support frame 1 is provided with the ray shielding part 2, and the ray shielding part 2 is used for blocking ray beams emitted from a treatment head of radiotherapy equipment, so that the radiation protection requirement is met in the development and test process of the radiotherapy equipment; the whole support frame 1 is driven to move by the aid of the Fermat wheel assembly 3 at the bottom of the support frame 1, so that the distance between the ray shielding part 2 and a ray bundle outlet can be adjusted; when the test is started, the support frame 1 needs to be fixed at a target position, the horse wheel assembly 3 is directly adjusted, and the whole support frame 1 is fixed on the ground. The ray bundle blocking device is convenient and fast to move, simple to manufacture and low in cost, and can effectively block electron beams or X rays generated by the treatment head in the testing process. And, according to the position of restrainting of therapeutic head play, remove this mechanism and place therapeutic head restraint class export about one meter department can, need not to reform transform the test machine room wall body, and the mobility is convenient.
In the embodiment of the present invention, as shown in fig. 2, the wheel assembly 3 includes a road wheel 31, a rotating plate 32 and a supporting plate 33, the road wheel 31 and the supporting plate 33 are located on the same horizontal line, the supporting plate 33 is rotatably connected to the bottom of the rotating plate 32, and the distance between the rotating plate 32 and the supporting plate 33 is adjustable to drive the supporting plate 33 to contact with or separate from the ground.
After the support frame 1 carrying the ray shielding member 2 moves to the target position, the rotating plate 32 of the wheel assembly 3 is adjusted to make the supporting plate 33 of the wheel contact with the ground, and at this time, the support frame 1 is fixed at the target position. When the support frame 1 needs to be moved, the rotating plate 32 of the good horse wheel component 3 is adjusted, the supporting plate 33 of the good horse wheel component 3 is separated from the ground, the walking wheel 31 in the good horse wheel component 3 is contacted with the ground, the moving of the walking wheel 31 can drive the movement of the support frame 1, and at the moment, the ray bundle blocking device can be moved. Wherein, the quantity of fortune horse wheel subassembly 3 is four groups and is located four angles of support frame 1 bottom respectively to play fine support walking effect to support frame 1, in order to improve the stability of whole support frame 1.
In the embodiment of the present invention, the support frame 1 is a frame-shaped structure, and a first mounting table 11 for mounting the ray shield 2 is provided on the top of the support frame 1. Wherein, the supporting frame 1 is a three-dimensional frame structure extending up and down.
In the embodiment of the present invention, the outer periphery of the radiation shield 2 is covered with a cover, and the radiation shield 2 is mounted on the first mounting stage 11 through the fixing plate 5. Since lead is a toxic heavy metal which is extremely harmful to the human body, in order to prevent the human body from contacting with lead, an outer cover is arranged outside the ray shielding member 2; during the assembly, with take the ray shield 2 of dustcoat directly lift put on first mount table 11 can, and need not direct contact ray shield 2, guaranteed operating personnel's security problem like this. In other alternative embodiments, the radiation shield 2 may be made of stainless steel, concrete, or the like, as long as it can shield radiation. In this embodiment, it is preferable to use the lead block as the radiation shield 2, because the volume of the radiation shield 2 is smaller for other materials such as stainless steel and concrete, which is more convenient for the operator to carry and saves the use space.
In the embodiment of the present invention, as shown in fig. 3, a plurality of handles 4 are disposed around the radiation shield 2, the plurality of handles 4 are fixedly connected to the bottom of the radiation shield 2, a holding portion of the handle 4 extends from the bottom of the radiation shield 2 and is bent toward the outer side of the radiation shield 2, and a holding space is formed on the holding portion. Since the radiation shield 2 of the present invention is heavy, four handles 4 having grip portions are installed around the left, right, front, and rear sides of the fixing plate 5 at the bottom of the radiation shield 2 in order to facilitate the transportation and installation of the radiation shield 2. When the operating personnel need remove ray shielding part 2, only need hold the space of holding on the hand grip 4, upwards mention and to realize the transport of ray shielding part 2, this kind of ray shielding part 2 mode of removal is simple laborsaving more.
In an embodiment of the invention, the thickness of the radiation shield 2 is in a positive correlation with the energy level of the radiation beam. Calculating the size of the emergent ray shielding part 2 according to the energy of the electron beam or the X ray generated by the treatment head and the position of the ray beam blocking device, which is arranged away from the electron beam or the X ray outlet of the treatment head; because the center of the ray shielding part 2 in the beam current blocking mechanism needs to coincide with the center of the beam spot, the thickness of the ray shielding part 2 and the energy of the electron beam or the X ray to be shielded form a positive correlation relationship, and the distance between the ray shielding part 2 and the electron beam or the X ray outlet needs to be calculated according to the energy of the electron beam or the X ray, the ray beam blocking device is only suitable for a specific treatment head module.
In the embodiment of the present invention, the weight of the radiation shield may be determined according to the energy of the radiation beam emitted during the actual detection process, as long as the requirement of radiation protection is met.
In the embodiment of the invention, the bottom of the support frame 1 is provided with a second mounting table 12, and a balancing weight 6 for adjusting the gravity center is placed on the second mounting table 12. This balancing weight 6 is close to the bottom setting of support frame 1, can be used for reducing whole bundle of rays blocking device's focus, steadily avoids empting when making bundle of rays blocking device remove.
In an embodiment of the present invention, a radiotherapy apparatus is further proposed, which comprises a treatment head, and a beam stop device as described above horizontally arranged at a distance from the treatment head, wherein the beam is irradiated on a treatment region of a patient by a beam limiting device arranged on the treatment head. In addition, since the radiotherapy equipment adopts all the embodiments of the above-mentioned beam blocking device, all the beneficial effects of the beam blocking device are achieved, and the detailed description is omitted.
When carrying out research and development test process to radiotherapy equipment, with radiotherapy equipment's treatment head horizontal pendulum send out the pencil of departure, set up the energy detection device with the energy size that detects bundle of rays between treatment head and bundle of rays blocking device, in order to satisfy the radiation protection requirement, adopt this moment to bundle of rays blocking device to shield the bundle of rays that sends out to this bundle of rays blocking device can remove, convenient and fast more like this.
In an embodiment of the invention, the center of the beam spot generated by the treatment head coincides with the center of the radiation shield 2 of the radiation beam blocking device. In order to better block the ray beam emitted by the treatment head, the center of the beam spot of the ray beam and the center of the ray shielding piece 2 are positioned on the same horizontal straight line, so that the ray beam emitted from the treatment head can be more effectively blocked by the ray shielding piece 2, and the blocking efficiency of the ray beam is improved.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A beam stop arrangement for use in testing a radiotherapy device, the beam stop arrangement comprising:
the bottom of the supporting frame (1) is provided with a horse wheel component (3) for driving the supporting frame (1) to move or fix; and
the ray shielding part (2) is arranged on the support frame (1) and used for shielding ray beams generated by the radiotherapy equipment, and the distance between the ray shielding part (2) and the ray beam outlet can be adjusted.
2. The beam blocking device according to claim 1, characterized in that the radiation shield (2) is a radiation shield, a stainless steel part or a concrete part.
3. The beam stop apparatus of claim 1, wherein the wheel assembly (3) comprises a walking wheel (31), a rotating plate (32) and a supporting plate (33), the walking wheel (31) and the supporting plate (33) are located on the same horizontal line, the supporting plate (33) is rotatably connected to the bottom of the rotating plate (32), and the distance between the rotating plate (32) and the supporting plate (33) is adjustable to bring the supporting plate (33) into or out of contact with the ground.
4. The beam stop according to claim 1, characterized in that the support frame (1) is a frame-shaped structure, and a first mounting table (11) for mounting the beam shield (2) is arranged on top of the support frame (1).
5. The beam stop according to claim 4, characterized in that the outer circumference of the radiation shield (2) is covered with a housing, the radiation shield (2) being mounted on the first mounting stage (11) by means of a fixing plate (5).
6. The radiation beam blocking device according to claim 5, wherein a plurality of handles (4) are arranged around the radiation shield (2), the plurality of handles (4) are fixedly connected to the bottom of the radiation shield (2), a holding portion of each handle (4) extends from the bottom of the radiation shield (2) and is bent towards the outer side of the radiation shield (2), and a holding space is formed on the holding portion.
7. The beam blocking device according to one of the claims 1 to 7, characterized in that the thickness of the radiation shield (2) is positively correlated to the energy level of the radiation beam.
8. The beam blocking device according to any one of claims 1 to 7, characterized in that a second mounting table (12) is provided at the bottom of the support frame (1), and a weight block (6) for adjusting the center of gravity is placed on the second mounting table (12).
9. Radiotherapy apparatus, characterized in that it comprises a treatment head, a beam-blocking device according to any one of claims 1 to 8 arranged horizontally spaced from said treatment head, the beam being irradiated on a treatment area of a patient by means of a beam-limiting device arranged at the treatment head.
10. Radiotherapy installation according to claim 9, characterized in that the centre of the beam spot generated by the treatment head coincides with the centre of the radiation shield (2) of the beam blocking means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996436.0A CN113694401A (en) | 2021-08-27 | 2021-08-27 | Ray bundle blocking device and radiotherapy equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996436.0A CN113694401A (en) | 2021-08-27 | 2021-08-27 | Ray bundle blocking device and radiotherapy equipment |
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| CN113694401A true CN113694401A (en) | 2021-11-26 |
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| CN202110996436.0A Pending CN113694401A (en) | 2021-08-27 | 2021-08-27 | Ray bundle blocking device and radiotherapy equipment |
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