A shielding device for alpha and beta emitters

The operating cabinet, constructed with transparent polymer wall panels and a filtration, exhaust, and disinfection mechanism, solves the problems of large size and complex operation of traditional equipment. It achieves lightweight, easy-to-operate, and safe shielding of alpha and beta nuclides, making it suitable for laboratory environments.

CN224536718UActive Publication Date: 2026-07-21WEST CHINA HOSPITAL SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEST CHINA HOSPITAL SICHUAN UNIV
Filing Date
2025-06-09
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing lead-shielded radiation protection fume hoods are bulky, inconvenient to operate, and expensive. They are not suitable for experimental environments and cannot effectively prevent radioactive liquid spills and aerosol leaks caused by alpha and beta nuclides during operation.

Method used

The operating cabinet is constructed using transparent polymer wall panels, combined with a filtration, exhaust, and disinfection system. The connection between the internal and external spaces is controlled by an isolation door to ensure operational safety, and the sealed connection is achieved through operating gloves to effectively shield against alpha and beta rays.

Benefits of technology

It provides a lightweight and easy-to-operate shielding device to prevent the leakage of radioactive materials and the spread of aerosols, reduce the risk of microbial contamination, protect the safety of operators and the environment, and is suitable for laboratory environments.

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Abstract

The application relates to the technical field of radioactive shielding devices, in particular to a shielding operation device suitable for alpha nuclides and beta nuclides. The device comprises a temporary storage box body, an operation box body, an operation glove, a filtering and air exhausting mechanism and a disinfection mechanism; the temporary storage box body is provided with a first isolation door body and a second isolation door body; the operation box body is spliced by transparent high-molecular wall plates, the operation box body is connected with the temporary storage box body, a plurality of operation holes for connecting the internal space of the operation box body with the external space are formed in the operation box body; the operation glove is sealingly connected with the edge of the operation hole; the filtering and air exhausting mechanism is connected with the operation box body and is used for exhausting the air in the operation box body to the outside of the operation box body; and the disinfection mechanism is located in the operation box body. The application has the advantages of simple structure, relatively convenient operation and relatively light weight, and is especially suitable for laboratory environment.
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Description

Technical Field

[0001] This application relates to the field of radioactive shielding devices, specifically to a shielding operation device suitable for alpha and beta nuclides. Background Technology

[0002] Alpha nuclides (alpha nuclides, such as radium-223, radium-226, astatine-211, actinium-225, etc.) and beta nuclides (beta nuclides, such as yttrium-90, phosphorus-32, etc.) may cause relatively little damage to normal tissues due to their high energy and short range, but if appropriate protective measures are not taken during handling, they may cause radioactive liquid splashes or radioactive aerosol leaks, thus posing potential hazards to operators and the environment.

[0003] For handling radionuclides, traditional lead-shielded radiation protection fume hoods and other equipment are usually used. These devices are bulky, and because they are protected with lead bricks with a lead equivalent of at least 20-70 mm, they usually weigh 2-8 tons. They are not only complex in structure and inconvenient to operate, but also relatively expensive to purchase, use and maintain, making them unsuitable for experimental environments. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the background art, and to provide a shielding operation device suitable for alpha nuclides and beta nuclides.

[0005] This application is achieved through the following technical solution: A shielding operation device suitable for alpha and beta nuclides, comprising: A temporary storage box is provided with a first isolation door and a second isolation door, wherein the first isolation door is used to connect / isolate the internal space and the external space of the temporary storage box; An operating box is assembled from transparent polymer wall panels. The operating box is connected to the temporary storage box. The operating box has several operating holes that connect the internal space of the operating box to the external space. The internal space of the operating box and the internal space of the temporary storage box are connected / isolated by a second isolation door. Operating gloves, wherein the operating gloves are sealed to the edge of the operating hole; A filtration and exhaust mechanism is connected to the operating box and is used to exhaust the air inside the operating box to the outside of the operating box. A disinfection mechanism is located inside the operating box.

[0006] This application provides a shielded operating device suitable for alpha and beta radionuclides. The temporary storage box stores radionuclides, and a first isolation door controls the connection or isolation between the internal and external spaces to prevent radioactive material leakage. The operating box is constructed of transparent polymer panels and connected to the interior of the temporary storage box via a second isolation door, facilitating operation while providing good visibility. Operating gloves are sealed to the edge of the operating port, ensuring safe hand access during operation. The gloves and the box itself are sealed to the outside, effectively preventing direct contact with the material. A filtration and exhaust system continuously purifies the air inside the operating box. The system filters and discharges radioactive aerosols to prevent their spread. A disinfection mechanism can periodically disinfect the interior of the operating chamber, reducing the risk of microbial contamination. Compared to traditional lead-shielded radiation protection fume hoods, the shielding operating device for alpha and beta nuclides provided in this application, constructed from polymer panels, can shield alpha and beta rays generated by alpha and beta nuclides, protecting the safety of operators and the environment. The overall structure is simpler and more convenient to operate than traditional lead-shielded radiation protection fume hoods, eliminating the need for lead plates or concrete. The device is also smaller and lighter, making it suitable for laboratory environments.

[0007] In some optional embodiments, in the working state, the rotation center axis of the first isolation door is horizontal and located at the lower part of the temporary storage box.

[0008] In some alternative embodiments, the number of operating holes is configured to be at least two.

[0009] In some optional embodiments, a power socket is provided inside the operating box.

[0010] In some optional embodiments, the disinfection mechanism is configured as an ultraviolet lamp, which is located on top of the operating box in the working state.

[0011] In some optional embodiments, the operating housing is also equipped with a lighting lamp.

[0012] In some alternative embodiments, a stainless steel base is detachably connected to the operating box.

[0013] In some optional embodiments, the operating cabinet is provided with a third isolation door, which is used to connect / isolate the internal space of the operating cabinet and the external space.

[0014] In some optional embodiments, two L-shaped guide strips are provided on the stainless steel base, and a guide groove is formed between the L-shaped guide strips and the stainless steel base. The operating box is provided with a protruding ridge that is adapted to the guide groove. The width of the third isolation door is greater than the width of the stainless steel base.

[0015] In some alternative embodiments, the filtration and exhaust mechanism and the operating port are located on two opposite walls of the operating housing.

[0016] Compared with the prior art, this application has the following advantages and beneficial effects: This application provides a shielded operating device suitable for alpha and beta radionuclides. The temporary storage box stores radionuclides, and a first isolation door controls the connection or isolation between the internal and external spaces to prevent radioactive material leakage. The operating box is constructed of transparent polymer panels and connected to the interior of the temporary storage box via a second isolation door, facilitating operation while providing good visibility. Operating gloves are sealed to the edge of the operating port, ensuring safe hand access during operation. The gloves and the box itself are sealed to the outside, effectively preventing direct contact with the material. A filtration and exhaust system continuously purifies the air inside the operating box. The system filters and discharges radioactive aerosols to prevent their spread. A disinfection mechanism can periodically disinfect the interior of the operating chamber, reducing the risk of microbial contamination. Compared to traditional lead-shielded radiation protection fume hoods, the shielding operating device for alpha and beta nuclides provided in this application, constructed from polymer panels, can shield alpha and beta rays generated by alpha and beta nuclides, protecting the safety of operators and the environment. The overall structure is simpler and more convenient to operate than traditional lead-shielded radiation protection fume hoods, eliminating the need for lead plates or concrete. The device is also smaller and lighter, making it suitable for laboratory environments. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of this application and form part of this application, do not constitute a limitation on the embodiments of this application. In the drawings: Figure 1 A schematic diagram of a shielding operation device for alpha and beta nuclides provided in an embodiment of this application; Figure 2 This is a schematic diagram of the stainless steel pallet structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the cross-sectional structure of the operating box provided in an embodiment of this application.

[0018] The attached diagram shows the markings and corresponding component names: 1-Temporary storage box, 2-Operating box, 3-Operating hole, 4-Filtering and exhaust mechanism, 5-Disinfection mechanism, 6-First isolation door, 7-Second isolation door, 8-Third isolation door, 9-Stainless steel base, 10-Power socket, 11-L-shaped guide strip, 12-Protruding rib. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this application are only for explaining this application and are not intended to limit this application.

[0020] like Figure 1 As shown in the figure, this application provides a shielding operation device suitable for alpha and beta nuclides. The device includes a temporary storage box 1, an operation box 2, operating gloves, a filtration and exhaust mechanism 4, and a disinfection mechanism 5. The temporary storage box 1 is equipped with a first isolation door 6 and a second isolation door 7. The first isolation door 6 connects / isolates the internal and external spaces of the temporary storage box 1. The operation box 2 is constructed from transparent polymer panels, allowing the operator to observe the alpha nuclides within the operation box 2. In addition to beta nuclides, it also allows for clear and convenient observation of the working status of other equipment inside the operating box 2. The operating box 2 is connected to the temporary storage box 1. The operating box 2 has several operating holes 3 that connect the internal space and the external space of the operating box 2. The internal space of the operating box 2 is connected to / isolated from the internal space of the temporary storage box 1 through the second isolation door 7. The operating gloves are sealed to the edge of the operating holes 3. The filter exhaust mechanism 4 is connected to the operating box 2 and is used to exhaust the air inside the operating box 2 to the outside of the operating box 2. The disinfection mechanism 5 is located inside the operating box 2.

[0021] In use, open the first isolation door 6 and transport the alpha and beta nuclides to the temporary storage box 1 and operating box 2. Disinfect the operating box 2 through the disinfection mechanism 5, open the filter exhaust mechanism 4, and then transport the alpha and beta nuclides to the operating box 2 through the second isolation door 7. Close the second isolation door 7 and the first isolation door 6. Operators handle the alpha and beta nuclides through operating gloves.

[0022] The shielding operation device for alpha and beta nuclides provided in this application embodiment includes a temporary storage box 1 for storing radioactive nuclides, and a first isolation door 6 controlling the connection or isolation between the internal and external spaces to prevent radioactive material leakage. The operation box 2 is constructed from transparent polymer panels and is connected to the interior of the temporary storage box 1 via a second isolation door 7, facilitating operation while providing good visibility. The operation glove is sealed to the edge of the operation port 3, ensuring safe hand access during operation, while the inside of the glove and the box are sealed to the outside, effectively preventing direct contact with the material. A filtration and exhaust mechanism 4 continuously draws air from the operation box 2. The system filters and discharges radioactive aerosols to prevent their spread. The disinfection mechanism 5 can regularly disinfect the inside of the operating box 2, reducing the risk of microbial contamination. Compared with traditional lead-shielded radiation protection fume hoods and other equipment, the shielding operating device for alpha and beta nuclides provided in this application embodiment can achieve shielding of alpha and beta rays generated by alpha and beta nuclides through the operating box 2 made of polymer wall panels, protecting the safety of operators and the environment. The overall structure is simpler than traditional lead-shielded radiation protection fume hoods and other equipment, and the operation is relatively convenient. It does not require lead plates, concrete, etc., and the device is smaller and lighter, making it suitable for laboratory environments.

[0023] In this embodiment, the polymer wall panel of the operating box 2 can be made of materials such as polyimide, polyethylene, polycarbonate, polymethyl methacrylate, etc.

[0024] In this embodiment, the temporary storage box 1 can typically be designed as a rectangular box. The temporary storage box 1 can also be made of the same polymer wall panel as the operating box 2, thereby preventing accidental leakage of α rays or β rays from the temporary storage box 1. The difference is that the polymer wall panel of the temporary storage box 1 can be made of transparent or non-transparent materials.

[0025] In some optional embodiments, in the working state, the rotation center axis of the first isolation door 6 is horizontal and located at the lower part of the temporary storage box 1.

[0026] In this embodiment of the application, in the working state, the latch of the first isolation door 6 is located at the upper end of the temporary storage box 1, while the hinge of the first isolation door 6 is located at the lower end of the temporary storage box 1. When the first isolation door 6 is open, one end of it can contact the ground or other supporting platform, which will facilitate the entry of material transport devices such as trolleys into the first isolation door 6.

[0027] In some alternative embodiments, the number of operating holes 3 is configured to be at least two.

[0028] In this embodiment, the multiple operating holes 3 facilitate operators to operate the alpha and beta nuclides from different positions, providing good operational convenience. At the same time, it also allows multiple operators to operate the alpha and beta nuclides together.

[0029] In some alternative embodiments, a power socket 10 is provided inside the operating housing 2.

[0030] In this embodiment, by incorporating the power socket 10, the wiring inside and outside the operating box 2 is reduced, which can lower the probability of alpha and beta ray leakage and improve the personal safety of operators.

[0031] In some optional embodiments, the disinfection mechanism 5 is configured as an ultraviolet lamp, which is located on top of the operating housing 2 in the working state.

[0032] In this embodiment, the ultraviolet lamp serves as the disinfection mechanism 5. Its main function is to emit ultraviolet light beams during operation for efficient disinfection of the internal environment of the operating chamber 2. The design of the top of the operating chamber 2 allows the ultraviolet lamp to irradiate all areas inside that need disinfection, ensuring comprehensive cleaning of the air and surfaces. Combined with the enclosed structure of the operating chamber 2, the ultraviolet lamp can minimize external contamination, providing a clean and safe operating space. When the ultraviolet lamp is turned on, the emitted ultraviolet light waves can destroy the DNA and RNA structure of microorganisms, inhibit their reproduction, and eliminate various bacteria and viruses, thereby achieving effective disinfection of the internal environment of the operating chamber 2.

[0033] In some optional embodiments, the operating housing 2 is also equipped with a light, so that the operator can clearly and conveniently observe the situation inside the operating housing 2.

[0034] In some alternative embodiments, a stainless steel base 9 is detachably connected inside the operating housing 2.

[0035] In this embodiment of the application, by setting a stainless steel base 9, it can be disassembled and cleaned regularly to prevent radioactive nuclides from being contaminated inside the box for a long time.

[0036] In some optional embodiments, the operating box 2 is provided with a third isolation door 8, which is used to connect / isolate the internal space of the operating box 2 and the external space.

[0037] In summary, the third isolation door 8 can serve as an inspection door, facilitating maintenance personnel to inspect the inside of the control box 2.

[0038] In some optional embodiments, reference may also be made to Figure 2 and Figure 3Two L-shaped guide bars 11 are provided on the stainless steel base 9, and a guide groove is formed between the L-shaped guide bars 11 and the stainless steel base 9. The operating box 2 is provided with a protruding rib 12 that is adapted to the guide groove. The width of the third isolation door 8 is greater than the width of the stainless steel base 9.

[0039] In this embodiment, the stainless steel base 9 can be slidably disassembled or installed by means of the L-shaped guide bar 11 and the protruding rib 12, which will help improve the convenience of maintenance.

[0040] In some alternative embodiments, the filtration and exhaust mechanism 4 and the operation port 3 are located on two opposite walls of the operation box 2.

[0041] The specific embodiments described above illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details are included in the above description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0042] It should be noted that in this specification, similar reference numerals and letters in the above figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this application, it should be noted that unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A shielding operation device suitable for alpha and beta nuclides, characterized in that, include: A temporary storage box (1) is provided with a first isolation door (6) and a second isolation door (7), wherein the first isolation door (6) is used to connect / isolate the internal space and the external space of the temporary storage box (1); An operating box (2) is made of transparent polymer wall panels. The operating box (2) is connected to the temporary storage box (1). The operating box (2) has several operating holes (3) that connect the internal space and the external space of the operating box (2). The internal space of the operating box (2) and the internal space of the temporary storage box (1) are connected / isolated by a second isolation door (7). Operating gloves, which are sealed to the edge of the operating hole (3); A filtration and exhaust mechanism (4) is connected to the operating box (2) and is used to exhaust the air inside the operating box (2) to the outside of the operating box (2); Disinfection mechanism (5), which is located inside the operating box (2).

2. The shielding operation device for alpha and beta nuclides according to claim 1, characterized in that, In the working state, the rotation center axis of the first isolation door (6) is horizontal and located at the lower part of the temporary storage box (1).

3. The shielding operation device for alpha and beta nuclides according to claim 1, characterized in that, The number of the operating holes (3) is configured to be at least two.

4. The shielding operation device for alpha and beta nuclides according to claim 1, characterized in that, The operating box (2) is equipped with a power socket (10).

5. The shielding operation device for alpha and beta nuclides according to claim 1, characterized in that, The disinfection mechanism (5) is configured as an ultraviolet lamp, and in the working state, the ultraviolet lamp is located on the top of the operating box (2).

6. The shielding operation device for alpha and beta nuclides according to claim 1, characterized in that, The operating box (2) is also equipped with a lighting lamp.

7. The shielding operation device for alpha and beta nuclides according to claim 1, characterized in that, The operating box (2) is detachably connected to a stainless steel base (9).

8. The shielding operation device for alpha and beta nuclides according to claim 7, characterized in that, The operating box (2) is provided with a third isolation door (8), which is used to connect / isolate the internal space and the external space of the operating box (2).

9. The shielding operation device for alpha and beta nuclides according to claim 8, characterized in that, Two L-shaped guide strips (11) are provided on the stainless steel base (9), and a guide groove is formed between the L-shaped guide strips (11) and the stainless steel base (9). The operating box (2) is provided with a protruding ridge (12) that is adapted to the guide groove. The width of the third isolation door (8) is greater than the width of the stainless steel base (9).

10. The shielding operation device for alpha and beta nuclides according to claim 1, characterized in that, The filtration and exhaust mechanism (4) and the operation hole (3) are located on two opposite walls of the operation box (2).