CN219208764U - Active shielding device for blocking radioactive rays with dose monitoring - Google Patents
Active shielding device for blocking radioactive rays with dose monitoring Download PDFInfo
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- CN219208764U CN219208764U CN202222824611.0U CN202222824611U CN219208764U CN 219208764 U CN219208764 U CN 219208764U CN 202222824611 U CN202222824611 U CN 202222824611U CN 219208764 U CN219208764 U CN 219208764U
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- outer side
- guide rail
- moving guide
- motor
- dose monitoring
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 23
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 230000002285 radioactive effect Effects 0.000 title abstract description 13
- 230000005855 radiation Effects 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000000670 limiting effect Effects 0.000 claims description 9
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 206010028980 Neoplasm Diseases 0.000 description 10
- 230000003028 elevating effect Effects 0.000 description 6
- 238000001959 radiotherapy Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000002786 image-guided radiation therapy Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000002673 radiosurgery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Measurement Of Radiation (AREA)
Abstract
The utility model discloses an active shielding device for blocking radioactive rays with dose monitoring, comprising: the radiation source is arranged on the upper side of the front end face of the rack, the outer side of the lower end of the rack is connected with the installation base, and the lifting electric push rod is installed on the upper end face of the installation base; the first motor is arranged on the outer side surface of the longitudinal moving guide rail, the output end of the first motor is connected with a first mounting rod, the outer side of the first mounting rod is connected with a mounting plate, and the outer side of the upper end of the mounting plate is provided with a transverse moving guide rail; and the second motor is arranged outside the left end face of the transverse moving guide rail. The active shielding device for blocking the radioactive rays with the dose monitoring function is used for blocking the radioactive rays emitted by a radiation source, so that the shielding thickness is reduced, the dose monitoring function can be realized, the shielding block is automatically moved under the control of the computer body, the beam is always aligned, the radioactive rays are actively blocked, and the dose can be monitored on line.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an active shielding device for blocking radioactive rays with dose monitoring.
Background
Radiation therapy is one of three treatment means of tumor, external irradiation means that rays are incident into a body from outside the body, and non-invasive operation is performed, and the external irradiation device comprises a linear accelerator (LINAC), a cobalt-60 radioactive source, a proton source, a heavy ion source and other radiation sources, wherein the rays can be incident into a tumor area from a coplanar or non-coplanar direction and are overlapped and focused in the tumor area, so that the tumor area accumulates high dose, normal tissue is relatively low in weight, the tumor is systemic, the radiation selectable irradiation space is better, the smaller the blind area is, the better the smaller the incident space is, the better the incidence of the radiation can be arranged, and normal organs can be better avoided and protected.
The radiation therapy refers to the treatment of tumor by using radiation generated by a radiation source, wherein the radiation can be irradiated from outside, or the radiation source can be placed in the tumor to irradiate from inside, and the purpose of destroying the tumor or controlling the growth of the tumor is achieved through the physical, biological and chemical actions of the radiation and the tumor; "radiosurgery (SRS)" refers to a radiation treatment technique characterized by a lower number of higher doses; "Image Guided Radiation Therapy (IGRT)" refers to a radiation therapy technique that utilizes image-guided techniques to achieve precise guidance of patient positioning.
However, most of the existing accelerators are fixed in shielding, so that the accelerator is inconvenient to use in a radiotherapy device with a movable therapeutic head, the ZAP knife adopts a full-screen design, a patient is surrounded by the whole shielding block, the occupied space is large, and certain use defects exist, so that an active shielding device for blocking radiation with dose monitoring is provided, and the problems in the prior art are solved.
Disclosure of Invention
The utility model aims to provide an active shielding device for blocking radioactive rays with dose monitoring, which aims to solve the problems that most of the existing shielding devices of accelerators in the prior art are fixed and cannot be used for a radiotherapy device with a movable treatment head, a ZAP knife adopts a full shielding design, a patient is surrounded by a whole shielding block, the occupied space is large, and certain using defects exist.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an active shielding device for blocking radiation with dose monitoring, comprising:
the radiation source is arranged on the upper side of the front end face of the rack, the outer side of the lower end of the rack is connected with the installation base, the lifting electric push rod is installed on the upper end face of the installation base, and the outer side of the upper end of the lifting electric push rod is provided with the longitudinal moving guide rail;
the first motor is arranged on the outer side surface of the longitudinal moving guide rail, the output end of the first motor is connected with a first mounting rod, the outer side of the first mounting rod is connected with a mounting plate, and the outer side of the upper end of the mounting plate is provided with a transverse moving guide rail;
the second motor is arranged on the outer side of the left end face of the transverse moving guide rail, the output end of the second motor is connected with a second mounting rod, limit strips are arranged on the front side and the rear side of the transverse moving guide rail, a connecting frame is arranged on the outer side of the transverse moving guide rail, and a connecting block is integrally arranged in the middle of the inner side of the connecting frame;
the shielding block is arranged on the outer side of the upper end of the connecting frame, an ionization chamber is arranged in the middle of the lower end of the shielding block, a dosimeter body is arranged on the outer side of the frame, and a computer body is arranged on the outer side of the dosimeter body.
Preferably, the first mounting rod is connected with the mounting plate in a threaded mode, and the longitudinal section of the mounting plate is T-shaped.
Preferably, the second mounting rod is connected with the transverse moving guide rail in a rotating mode, and the second mounting rod is connected with the connecting block in a threaded mode.
Preferably, the connecting frame is connected with the limiting strip in a sliding mode, and the longitudinal section of the limiting strip is arc-shaped.
Preferably, the connecting block is connected with the transverse moving guide rail in a sliding manner.
Preferably, the connecting frame and the connecting block are arranged in bilateral symmetry with respect to the vertical central axis of the shielding block and play a role in moving the shielding block.
Compared with the prior art, the utility model has the beneficial effects that: the active shielding device for blocking the radioactive rays with the dose monitoring function is used for blocking the radioactive rays emitted by a radiation source, so that the shielding thickness is reduced, the dose monitoring function can be realized, the shielding block is automatically moved under the control of the computer body, the beam is always aligned, the radioactive rays are actively blocked, and the dose can be monitored on line;
1. the lifting electric push rod, the first motor and the second motor are convenient to respectively control the lifting electric push rod, the first motor and the second motor through the computer body, so that the lifting electric push rod, the first motor and the second motor respectively drive the shielding block to move up and down, longitudinally and transversely, the shielding block can automatically move and always align with the radiation beam, and the radiation is actively blocked;
2. the ionization chamber is used for collecting charges generated by ionization air of the radiation source, the ionization chamber is used for measuring the charges collected by the ionization chamber, when the shielding block is blocked, the ionization chamber is used for collecting the charges generated by ionization air of the radiation source, the collected parameters are transmitted to the dosimeter body, at the moment, the dosimeter body is used for measuring the charges collected by the ionization chamber, the dose can be monitored on line, the dosimeter body is combined with the shielding block, so that blocking and monitoring are integrated, meanwhile, the dosimeter body is used for measuring a radiation beam and comparing the values given by the computer body, and whether the shielding block is aligned to the radiation beam can be monitored;
3. the connecting frame is connected with the limiting bar in a sliding mode, the longitudinal section of the limiting bar is arc-shaped, meanwhile, the connecting block is connected with the transverse moving guide rail in a sliding mode, and when the connecting block drives the shielding block to transversely move, the limiting bar and the connecting frame have a good limiting effect on the connecting block, so that the moving stability of the shielding block is improved conveniently.
Drawings
FIG. 1 is a schematic diagram of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic cross-sectional side view of a first mounting bar and mounting plate connection of the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;
fig. 4 is a schematic cross-sectional view of the connection of the second mounting bar and the adapter block according to the present utility model.
In the figure: 1. a frame; 2. a radiation source; 3. a mounting base; 4. lifting the electric push rod; 5. longitudinally moving the guide rail; 6. a first motor; 7. a first mounting bar; 8. a mounting plate; 9. a transverse moving guide rail; 10. a second motor; 11. a second mounting bar; 12. a limit bar; 13. a connecting frame; 14. a joint block; 15. a shielding block; 16. an ionization chamber; 17. a dosimeter body; 18. a computer body.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: an active shielding device for blocking radioactive rays with dose monitoring comprises a radiation source 2 arranged on the upper side of the front end face of a frame 1, a mounting base 3 connected with the outer side of the lower end of the frame 1, an elevating electric push rod 4 arranged on the upper end face of the mounting base 3, a longitudinal moving guide rail 5 arranged on the outer side of the upper end of the elevating electric push rod 4, a first motor 6 arranged on the outer side face of the longitudinal moving guide rail 5, an output end of the first motor 6 connected with a first mounting rod 7, a mounting plate 8 connected with the outer side of the first mounting rod 7, a transverse moving guide rail 9 arranged on the outer side of the upper end of the mounting plate 8, a second motor 10 arranged on the outer side of the left end face of the transverse moving guide rail 9, a limiting bar 12 arranged on the outer side of the second motor 10, a connecting frame 13, a connecting block 14 integrally arranged on the inner side middle of the connecting frame 13, a shielding block 15 arranged on the outer side of the upper end of the connecting frame 13, an ionization chamber 16 arranged on the middle of the lower end of the shielding block 15, a dose meter body 17 arranged on the outer side of the frame 1, and a dose meter 17 arranged on the outer side of the dose meter, and a dose meter 18 arranged on the outer side of the dose meter.
In the active shielding device for blocking radiation with dose monitoring, as shown in fig. 1 and 2, firstly, a frame 1 and an elevating electric push rod 4 are installed at a designated position through a mounting base 3, a dosimeter body 17 is connected with an ionization chamber 16 through a cable, and meanwhile, the elevating electric push rod 4, a first motor 6 and a second motor 10 are all connected with a computer body 18 through the cable, when the active shielding device is used, the elevating electric push rod 4, the first motor 6 and the second motor 10 can be respectively issued with instructions through the computer body 18, the elevating electric push rod 4 can be used for driving a shielding block 15 to longitudinally move up and down, and as a first mounting rod 7 and a mounting plate 8 are connected in a threaded manner, and the longitudinal section of the mounting plate 8 is in a T shape, when the first motor 6 is started, the first mounting rod 7 rotates in the interior of a longitudinal moving guide rail 5, and at the moment, the mounting plate 8 is connected with the first mounting rod 7 in a threaded manner, so that the mounting plate 8 moves back and forth in the interior of the longitudinal moving guide rail 5, and the shielding block 15 is driven to longitudinally move conveniently;
as shown in fig. 2, 3 and 4, since the second mounting rod 11 is connected with the transverse moving guide rail 9 in a rotating manner, the second mounting rod 11 is connected with the joint block 14 in a threaded manner, and meanwhile, the joint block 14 is connected with the transverse moving guide rail 9 in a sliding manner, when the second motor 10 is started, the second mounting rod 11 is in threaded connection with the joint block 14, and at the moment, the joint block 14 transversely slides in the transverse moving guide rail 9, so that the shielding block 15 is conveniently driven to transversely move, and further, the shielding block 15 has a better automatic moving function, so that the shielding block can always align with a radiation beam, actively blocks the radiation beam, and because the joint frame 13 is connected with the limit bar 12 in a sliding manner, and the longitudinal section of the limit bar 12 is in a circular arc shape, the joint block 14 simultaneously drives the joint frame 13 and the limit bar 12 to slide, and the limit bar 12 has a better limit effect on the joint frame 13, so that the stability of the transverse movement of the shielding block 15 is conveniently improved;
as shown in fig. 1, the shielding block 15 is generally made of high-density materials such as tungsten steel and lead, and is used for blocking rays, the ionization chamber 16 is used for collecting charges generated by ionizing air of the radiation source 2, the ionization chamber 16 is used for measuring charges collected by the ionization chamber 16, when the shielding block 15 is blocked, the ionization chamber 16 is used for collecting charges generated by ionizing air of the radiation source 2, and collected parameters are transmitted to the dosimeter body 17, at the moment, the dosimeter body 17 is used for measuring the charges collected by the ionization chamber 16, and dose can be monitored online, the dosimeter body 17 is combined with the shielding block 15, so that blocking and monitoring are integrated, and meanwhile, whether the shielding block 15 is aligned to the radiation beam can be monitored by comparing the radiation beam measured by the dosimeter body 17 with the numerical value given by the computer body 18, namely the use method of the active shielding device for blocking radiation with dose monitoring.
Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. An active shielding device for blocking radiation with dose monitoring, characterized by: comprising the following steps:
the radiation source is arranged on the upper side of the front end face of the rack, the outer side of the lower end of the rack is connected with the installation base, the lifting electric push rod is installed on the upper end face of the installation base, and the outer side of the upper end of the lifting electric push rod is provided with the longitudinal moving guide rail;
the first motor is arranged on the outer side surface of the longitudinal moving guide rail, the output end of the first motor is connected with a first mounting rod, the outer side of the first mounting rod is connected with a mounting plate, and the outer side of the upper end of the mounting plate is provided with a transverse moving guide rail;
the second motor is arranged on the outer side of the left end face of the transverse moving guide rail, the output end of the second motor is connected with a second mounting rod, limit strips are arranged on the front side and the rear side of the transverse moving guide rail, a connecting frame is arranged on the outer side of the transverse moving guide rail, and a connecting block is integrally arranged in the middle of the inner side of the connecting frame;
the shielding block is arranged on the outer side of the upper end of the connecting frame, an ionization chamber is arranged in the middle of the lower end of the shielding block, a dosimeter body is arranged on the outer side of the frame, and a computer body is arranged on the outer side of the dosimeter body.
2. An active shielding device for blocking radiation with dose monitoring according to claim 1, characterized in that: the first mounting rod is connected with the mounting plate in a threaded mode, and the longitudinal section of the mounting plate is T-shaped.
3. An active shielding device for blocking radiation with dose monitoring according to claim 1, characterized in that: the second installation rod is connected with the transverse moving guide rail in a rotating mode, and the second installation rod is connected with the connecting block in a threaded mode.
4. An active shielding device for blocking radiation with dose monitoring according to claim 1, characterized in that: the connecting frame is connected with the limiting strip in a sliding mode, and the longitudinal section of the limiting strip is arc-shaped.
5. An active shielding device for blocking radiation with dose monitoring according to claim 1, characterized in that: the connecting block is connected with the transverse moving guide rail in a sliding mode.
6. An active shielding device for blocking radiation with dose monitoring according to claim 1, characterized in that: the linking frame and the linking block are arranged in bilateral symmetry with respect to the vertical central axis of the shielding block and play a role in moving the shielding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222824611.0U CN219208764U (en) | 2022-10-26 | 2022-10-26 | Active shielding device for blocking radioactive rays with dose monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222824611.0U CN219208764U (en) | 2022-10-26 | 2022-10-26 | Active shielding device for blocking radioactive rays with dose monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219208764U true CN219208764U (en) | 2023-06-20 |
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ID=86738579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222824611.0U Active CN219208764U (en) | 2022-10-26 | 2022-10-26 | Active shielding device for blocking radioactive rays with dose monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219208764U (en) |
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2022
- 2022-10-26 CN CN202222824611.0U patent/CN219208764U/en active Active
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