A device for the protection of radiopharmaceuticals

Abstract

The present disclosure provides a kind of protection device of radiopharmaceutical, including: box, box cover, radioactive container rack, linkage mechanism and telescopic drive mechanism.Box cover and box sliding connection, expand the radiation area of radiopharmaceutical, guarantee the efficiency of one detection.When the telescopic drive mechanism drives the box cover to enter the opening state, the radioactive container rack is rotated into detection state by the linkage mechanism, and when the telescopic drive mechanism drives the box cover to enter the closing state, the radioactive container rack is rotated into shielding state by the linkage mechanism.The present disclosure realizes the simultaneous conversion of the state of the radioactive container rack and the box cover by a telescopic drive mechanism, reduces the dose of staff, reduces the control link, and improves the detection efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of nuclear medicine technology, and more specifically, to a protective device for a radiopharmaceutical. Background Technology

[0002] Nuclear medicine workplaces are locations where patients are treated using radiation sources. To ensure the health and safety of radiation workers and prevent radiation leaks from harming their health, nuclear leak detection is required during the construction of nuclear medicine workplaces to maintain radiation levels within safe limits.

[0003] When conducting nuclear leak detection in a nuclear medicine workplace, staff must bring the radioactive source into the workplace within a protective device, then manually open the device to remove the source and place it inside the workplace for inspection to detect any potential leaks. After the inspection, staff must manually return the radioactive source to the protective device, seal it, and remove it from the workplace. During this process, staff will be in close contact with the radioactive source and exposed to radiation.

[0004] Therefore, this application provides a protective device for radiopharmaceuticals to address the issue of nuclear radiation exposure to the aforementioned personnel. Summary of the Invention

[0005] The purpose of this disclosure is to provide a protective device for radiopharmaceuticals that can solve at least one of the aforementioned technical problems. The specific solution is as follows:

[0006] According to a specific embodiment of this disclosure, a protective device for radiopharmaceuticals is provided, comprising:

[0007] The enclosure, including the enclosure opening;

[0008] The lid is slidably connected to the box body and has an open state that is located beside the box body away from the box body opening and a closed state that closes the box body opening;

[0009] A radiation container frame includes a rotating end and a frame end. The rotating end is rotatably connected to the inner wall of the box, and the frame end has a detection state that protrudes above the box opening and a shielding state that is hidden inside the box.

[0010] The linkage mechanism includes a first linkage end and a second linkage end. The first linkage end is hinged to the radiation container frame, and the second linkage end is hinged to the box cover. When the box cover is in the open state, the radiation container frame is in the detection state under the action of the linkage mechanism. When the box cover is in the closed state, the radiation container frame is in the shielding state under the action of the linkage mechanism.

[0011] A telescopic drive mechanism includes a telescopic end and a fixed end, wherein the telescopic end and the fixed end are respectively hinged to the inner wall of the lid and the inner wall of the box body; the telescopic drive mechanism drives the lid to slide.

[0012] Optionally, the box body includes a pair of liftable sliding components, which are respectively disposed on two opposite inner sidewalls inside the box body opening; the box lid is slidably connected to the pair of liftable sliding components; when the telescopic drive mechanism drives the box lid into the open state, it drives the pair of liftable sliding components to make the entire box lid slide above the box body opening; when the box lid is in the closed state, the pair of liftable sliding components are retracted into the box body opening.

[0013] Optionally, any height-adjustable sliding component includes: a height-adjustable guide rail, a fixed-length connector, and a variable-length connector;

[0014] The liftable guide rail is slidably connected to the box cover. The liftable guide rail includes a first free end and a second free end. The second free end refers to the end of the liftable guide rail that is opposite to the opening direction of the box cover.

[0015] One end of the fixed-length connector is rotatably connected to the first free end of the liftable guide rail, and the other end of the fixed-length connector is rotatably connected to one of the two opposing inner sidewalls, and the rotation plane of the fixed-length connector is parallel to the two opposing inner sidewalls.

[0016] One end of the variable length connector is movably connected to the second free end of the liftable guide rail, and the other end of the variable length connector is movably connected to one of the two opposing inner sidewalls.

[0017] When the telescopic drive mechanism drives the box cover into the open state, it causes the fixed-length connector and the variable-length connector to move, so that the first free end and the second free end of the liftable guide rail are higher than the box opening.

[0018] Optionally, the distance between the two ends of the fixed-length connector is less than the maximum distance between the two ends of the variable-length connector.

[0019] Optionally, the linkage mechanism includes a linkage rod, and when the linkage rod moves to a plane perpendicular to the opening of the housing, the distance between the two ends of the variable length connector is less than or equal to the maximum distance between the two ends of the variable length connector.

[0020] Optionally, the second free end of any liftable guide rail may further include a limiting member, which causes the box cover to reset on the liftable guide rail.

[0021] Optionally, when the lid is in the closed state, the line connecting the centers of the rotation points at both ends of the fixed-length connector is parallel to the horizontal line.

[0022] Optionally, the motion plane of the telescopic drive mechanism is parallel to the two opposing inner sidewalls; when the lid is closed, the projections of the telescopic end and the fixed end of the telescopic drive mechanism on the inner cover wall are both located on the rear half of the inner cover wall near the variable length connector, and the telescopic drive mechanism is tilted towards the side of the fixed length connector.

[0023] Optionally, the inner wall of the lid includes an upper step and a lower step that gradually taper inward. When the lid is closed, the surface of the upper step covers the edge of the box opening, and the lower step engages with the box opening and is embedded in it.

[0024] Optionally, the protective device for the radiopharmaceutical also includes a control interface penetrating the housing, as well as a wireless receiver and a wireless transmitter; the wireless receiver is signal-connected to the telescopic drive mechanism through the control interface and supplies power to the telescopic drive mechanism, and the wireless transmitter is signal-connected to the wireless receiver.

[0025] Compared with the prior art, the above-described solutions of this disclosure have at least the following beneficial effects:

[0026] This disclosure provides a protective device for radiopharmaceuticals, comprising: a housing, a lid, a radiation container frame, a linkage mechanism, and a telescopic drive mechanism. The lid is slidably connected to the housing, expanding the radiation area of ​​the radiopharmaceutical and ensuring the effectiveness of a single detection. When the telescopic drive mechanism drives the lid into the open state, the linkage mechanism drives the radiation container frame to rotate and enter the detection state. When the telescopic drive mechanism drives the lid into the closed state, the linkage mechanism drives the radiation container frame to rotate and enter the shielding state. This disclosure achieves simultaneous switching between the states of the radiation container frame and the lid through a single telescopic drive mechanism, reducing the radiation dose to personnel, reducing control steps, and improving detection efficiency. Attached Figure Description

[0027] Figure 1 A schematic structural diagram of a front cross-section of a protective device for radiopharmaceuticals provided in an embodiment of this disclosure;

[0028] Figure 2 Another structural schematic diagram of a front cross-section of a protective device for radiopharmaceuticals provided in an embodiment of this disclosure;

[0029] Figure 3 A lower view of the box lid provided in an embodiment of this disclosure;

[0030] Figure 4 This is a schematic diagram of a projection provided for an embodiment of this disclosure;

[0031] Explanation of reference numerals in the attached figures

[0032] 1-Box body, 2-Box cover, 3-Radiation container frame, 4-Linkage mechanism, 5-Telescopic drive mechanism, 6-Control interface;

[0033] 11-Liftable guide rail; 12-Fixed length connector; 13-Variable length connector;

[0034] 21-Upper platform, 22-Lower platform, 23-Front half, 24-Rear half, 25-Projection at the telescopic end, 26-Projection at the fixed end. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this disclosure clearer, the disclosure will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0036] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the article or device that includes said element.

[0037] The optional embodiments of this disclosure are described in detail below with reference to the accompanying drawings.

[0038] like Figure 1 and Figure 2 As shown, according to a specific embodiment of this disclosure, this disclosure provides a protective device for radiopharmaceuticals, including: a box body 1, a box cover 2, a radioactive container frame 3, a linkage mechanism 4, and a telescopic drive mechanism 5.

[0039] The container 1 includes a container opening. For the container 1 used to store radiopharmaceuticals, its material must be able to reduce the radiation emitted by the radiopharmaceuticals. Materials capable of blocking radiopharmaceutical radiation typically possess two characteristics: firstly, a higher atomic number generally results in stronger radiation protection; secondly, a higher material density generally results in stronger radiation protection. However, materials possessing these two characteristics are usually expensive. Only lead material has a relatively high atomic number and density, while its cost is relatively low. Therefore, in this embodiment, lead material is used to manufacture the container 1. Of course, this is not the only applicable method.

[0040] The lid 2 is slidably connected to the box body 1, and has an open state (located beside the box body 1, away from the opening of the box body 1) and a closed state (closing the opening of the box body 1). The material of the lid 2 must also be able to reduce the radiation of the radiopharmaceutical. Optionally, in this embodiment, the box body 1 is made of lead. Of course, it is not limited to this in practical applications. Figure 1 As shown, the lid 2 is in the closed state; Figure 2 As shown, the lid 2 is in the open state. In this embodiment, the lid 2 is opened by a sliding connection. This is for two reasons: first, to facilitate control of the lid 2; and second, to expand the radiation area of ​​the radiopharmaceutical, ensuring the effectiveness of a single detection, and to avoid the lid 2 being in a vertical position after opening, which would block the radiation of the radiopharmaceutical to the area behind the lid 2 and affect the detection results of the blocked area.

[0041] In some specific embodiments, such as Figure 2 and Figure 3 As shown, the inner wall of the box cover 2 includes an upper step 21 and a lower step 22 that gradually taper inward. When the box cover 2 is in the closed state, the surface of the upper step 21 covers the edge of the box body 1 at the opening of the box body 1, so that the lower step 22 fits into the opening of the box body 1.

[0042] The lid 2 is inverted pyramid shape, divided into two layers: an upper platform 21 and a lower platform 22. The upper platform 21 occupies a larger area than the lower platform 22, and the lower platform 22 is located at the center of the lower part of the upper platform 21. The upper platform 21 and the lower platform 22 form an inverted staircase. When the lid 2 is closed, the upper platform 21 rests on the edge of the box body 1 at the opening, allowing the lower platform 22 to completely seal the opening of the box body 1. The box body 1 and the lid 2 form a shielded space, effectively reducing the radiation of the radiopharmaceutical to the outside. Of course, the lid 2 of this disclosure is not limited to this. For example, the lid 2 includes a cover plate and downward-facing folded edges around the cover plate. When the lid 2 is closed, the downward-facing folded edges and the multiple layers of protection along the edges of the box body 1 can reduce the radiation of the radiopharmaceutical to the outside.

[0043] The radiation container frame 3 includes a rotating end and a frame end. The rotating end is rotatably connected to the inner wall of the housing 1, and the frame end has a detection state that extends above the opening of the housing 1 and a shielding state that is hidden inside the housing 1.

[0044] The frame end is used to place reflective materials, such as placing radiopharmaceuticals in vials or syringes, and fixing the vials or syringes to the frame end. For example, the rotating end includes a rotating shaft disposed on two opposing first and second inner sidewalls inside the housing 1, and the radioactive container frame 3 rotates around this rotating shaft; when the rotating shaft is perpendicular to the first and second inner sidewalls, the rotation plane of the frame end will be parallel to the first and second inner sidewalls.

[0045] The rotation plane refers to the plane on which the rotation trajectory of the center of mass of the rotating object lies. For example, the rotation plane at the end of the frame refers to the plane on which the rotation trajectory of the center of mass at the end of the frame lies.

[0046] When the radioactive container rack 3 is in an upright position, the rack end is at its highest point. At this time, if a vial containing radiopharmaceuticals is placed at the rack end, the radiation range of the radiopharmaceuticals will be at its maximum.

[0047] The linkage mechanism 4 includes a first linkage end and a second linkage end. The first linkage end is hinged to the radiation container frame 3, and the second linkage end is hinged to the lid 2. When the lid 2 is in the open state, the radiation container frame 3 is in a detection state under the action of the linkage mechanism 4; when the lid 2 is in the closed state, the radiation container frame 3 is in a shielding state under the action of the linkage mechanism 4. By using the linkage mechanism 4 to simultaneously change the states of the radiation container frame 3 and the lid 2, the operation steps are reduced and the detection efficiency is improved.

[0048] The telescopic drive mechanism 5 includes a telescopic end and a fixed end. The telescopic end and the fixed end are respectively hinged to the inner wall of the box cover 2 and the inner wall of the box body 1; the telescopic drive mechanism 5 drives the box cover 2 to slide.

[0049] When the telescopic drive mechanism 5 drives the lid 2 into the open state, the linkage mechanism 4 drives the radiation container frame 3 to rotate and enter the detection state. When the telescopic drive mechanism 5 drives the lid 2 into the closed state, the linkage mechanism 4 drives the radiation container frame 3 to rotate and enter the shielding state. This embodiment of the present disclosure achieves simultaneous state switching between the radiation container frame 3 and the lid 2 through a single telescopic drive mechanism 5, reducing control steps and improving detection efficiency.

[0050] Optionally, the telescopic drive mechanism 5 includes a servo electric cylinder.

[0051] In some specific embodiments, to enable the lid 2 to slide smoothly to the side of the box body 1, the box body 1 includes a pair of liftable sliding components, which are respectively disposed on two opposite inner sidewalls inside the opening of the box body 1. The lid 2 is slidably connected to the pair of liftable sliding components. That is, the pair of liftable sliding components are respectively installed on two opposite first and second inner sidewalls inside the box body 1. When the telescopic drive mechanism 5 drives the lid 2 into the open state, it drives the pair of liftable sliding components to make the lid 2 slide higher than the opening of the box body 1; when the lid 2 is in the closed state, the pair of liftable sliding components are retracted into the opening of the box body 1.

[0052] The pair of liftable sliding components allow the lid 2 to slide above the opening of the box body 1, preventing the lid 2 from colliding with the box body 1 during opening and enabling the lid 2 to open smoothly.

[0053] In other specific embodiments, any liftable sliding component includes: a liftable guide rail 11, a fixed-length connector 12, and a variable-length connector 13.

[0054] The liftable guide rail 11 is slidably connected to the lid 2. The liftable guide rail 11 includes a first free end and a second free end. The second free end refers to the end of the liftable guide rail 11 that is opposite to the opening direction of the lid 2. The first free end refers to the other end relative to the second free end, that is, the end of the liftable guide rail 11 that the opening direction of the lid 2 points to.

[0055] Optionally, the inner side wall of the lid 2 is provided with a slider or a set of pulleys on opposite sides, which cooperate with the liftable guide rail 11. The slider or pulleys slide within the liftable guide rail 11. Due to the rigidity of the lid 2, when the two sliders or the two sets of pulleys are in a parallel state, the pair of liftable guide rails 11 also remain in a parallel state. The pair of liftable guide rails 11 will not twist due to being suspended in the air.

[0056] The shape of the fixed-length connector 12 remains unchanged, as does the distance between its two ends. For example, it can be a connecting rod or a connecting piece; however, this specific embodiment is not limited to these. One end of the fixed-length connector 12 is rotatably connected to the first free end of the liftable guide rail 11, and the other end of the fixed-length connector 12 is rotatably connected to one of the two opposing inner sidewalls. The rotation plane of the fixed-length connector 12 is parallel to the two opposing inner sidewalls.

[0057] The rotation plane of the fixed-length connector 12 refers to the plane on which the rotation trajectory of the center of mass of the fixed-length connector 12 is located. In this specific embodiment, the rotation planes of a pair of fixed-length connectors 12 are parallel to the two opposing inner sidewalls, thus determining that the plane restricting the movement of the liftable guide rail 11 is also parallel to the two opposing inner sidewalls.

[0058] The plane of motion refers to the plane on which the center of mass of the moving object is located.

[0059] The variable-length connector 13 refers to a connector whose shape can change and the distance between its two ends can vary. Examples include chains, springs, and multi-section linkages. Figure 1 and Figure 2 The two connecting rods shown are rotatably connected, and the distance between the two ends of the connecting rods changes due to rotation. One end of the variable length connector 13 is movably connected to the second free end of the liftable guide rail 11, and the other end of the variable length connector 13 is movably connected to one of the two opposing inner sidewalls.

[0060] When the telescopic drive mechanism 5 drives the lid 2 into the open state, it moves the fixed-length connector 12 and the variable-length connector 13, causing the first and second free ends of the liftable guide rail 11 to extend above the opening of the box body 1. This allows the lid 2 to slide above the opening of the box body 1, preventing the lid 2 from colliding with the box body 1 during sliding.

[0061] In some other embodiments, the distance between the two ends of the fixed-length connector 12 is less than the maximum distance between the two ends of the variable-length connector 13.

[0062] The maximum distance between the two ends of the variable-length connector 13 refers to the distance between the two ends of the variable-length connector 13 after it is fully extended. For example, the distance between the two ends of the two connecting rods after they are extended in a straight line is the maximum distance between the two connecting rods.

[0063] like Figure 2 As shown, when the distance between the two ends of the fixed-length connector 12 is less than the maximum distance between the two ends of the variable-length connector 13, during the process of the telescopic drive mechanism 5 driving the box cover 2 into the open state, the box cover 2 presents a state of being lower in the front and higher in the back in the opening direction. The box cover 2 slides downward to the side of the box body 1. The more it slides, the lower the height of the box cover 2 becomes, thereby reducing the shielding of radiopharmaceutical radiation by the box cover 2, expanding the radiation area of ​​the radiopharmaceutical, and improving the effectiveness of detection.

[0064] In some other embodiments, the second free end of any of the liftable guide rails 11 further includes a limiting member, which causes the lid 2 to reset on the liftable guide rail 11. During the closing process, when the lid 2 slides to the limiting member, it can no longer slide. At this time, the limiting member limits the positional relationship between the lid 2 and the liftable guide rail 11, that is, the positional relationship of the lid 2 in the closed state, that is, the lid 2 is reset on the liftable guide rail 11.

[0065] In some other specific embodiments, when the lid 2 is in the closed state, the line connecting the centers of the rotation points at both ends of the fixed-length connector 12 is parallel to the horizontal line.

[0066] During the closing process, when the fixed-length connector 12 moves to the point where the center lines at both ends are parallel to the horizontal line, the liftable guide rail 11 is restricted from continuing to move in the horizontal direction and can only move in the vertical direction. This ensures that the lid 2, after being limited by the liftable guide rail 11, can accurately enter the closed state, that is, accurately cover the box body 1 with the lid 2.

[0067] In some other specific embodiments, the linkage mechanism 4 includes a linkage rod. When the linkage rod moves to a plane perpendicular to the opening of the housing 1, the distance between the two ends of the variable length connector 13 is less than or equal to the maximum distance between the two ends of the variable length connector 13.

[0068] When the linkage rod moves to a plane perpendicular to the opening of the housing 1, the distance between the two ends of the variable-length connector 13 is the maximum distance that can actually be deployed in the protective device. If the maximum actual deployed distance is less than or equal to the maximum distance between the two ends of the variable-length connector 13 (i.e., the distance when the two ends of the variable-length connector 13 are fully deployed), it indicates that the variable-length connector 13 is capable of ensuring the rotation of the linkage rod, allowing the housing cover 2 to slide smoothly, and the linkage rod to drive the radiation container frame 3 to rise smoothly for radioactive inspection; otherwise, the variable-length connector 13 is not capable of ensuring the rotation of the linkage rod, the housing cover 2 cannot slide smoothly, the linkage rod cannot drive the radiation container frame 3 to rise smoothly, and radioactive inspection cannot be performed.

[0069] In some specific embodiments, the plane of motion of the telescopic drive mechanism 5 is parallel to the two opposing inner sidewalls. When the lid 2 is in the closed state, the telescopic end projection 25 and the fixed end projection 26 of the telescopic drive mechanism 5 on the horizontal plane are both located on the inner sidewall near the rear half 24 of the variable length connector 13, and the telescopic drive mechanism 5 is tilted towards the side of the fixed length connector 12.

[0070] The movement plane of the telescopic drive mechanism 5 is parallel to the two opposing inner sidewalls. If the rotation plane of the fixed-length connector 12 is also parallel to the two opposing inner sidewalls, the lid 2 can slide more smoothly. Optionally, the movement plane of the telescopic drive mechanism 5 is parallel to the two opposing inner sidewalls and equidistant from them. This further reduces sliding resistance and ensures smooth sliding of the lid 2.

[0071] For example, such as Figure 1 As shown, the telescopic drive mechanism 5 has its telescopic end hinged to the inner wall of the box cover 2, and its fixed end hinged to the lower wall of the box body 1. Figure 4 As shown, the inner cover wall is divided into two parts by the centerline of the inner cover wall. The part closer to the fixed-length connector 12 is the front half 23, and the part closer to the variable-length connector 13 is the rear half 24. When the cover 2 is closed, the telescopic drive mechanism 5 tilts towards the fixed-length connector 12, that is, the projection of the telescopic end 25 is in front, and the projection of the fixed end 26 is behind. After this tilting, when the cover 2 is opened, it is beneficial for the telescopic drive mechanism 5 to push the cover 2 towards the fixed-length connector 12. Of course, the fixed end of the telescopic drive mechanism 5 is hinged to the inner cover wall of the cover 2, and the telescopic end of the telescopic drive mechanism 5 is hinged to the lower wall of the box body 1. This specific embodiment is not limited to this. Moreover, hinged to the rear half 24 of the inner cover wall, the telescopic drive mechanism 5 can drive the cover 2 to slide a greater distance, making the opening of the box body 1 larger, which is beneficial for the radiation container rack 3 to enter the detection state.

[0072] In some specific embodiments, the protective device for the radiopharmaceutical also includes a control interface 6 penetrating the housing 1, as well as a wireless receiver and a wireless transmitter; the wireless receiver is signal-connected to the telescopic drive mechanism 5 through the control interface 6 and supplies power to the telescopic drive mechanism 5, and the wireless transmitter is signal-connected to the wireless receiver.

[0073] Since the housing 1 and the lid 2 can shield wireless signals, this embodiment provides an external control interface 6 (such as a USB interface). Power is supplied to the telescopic drive mechanism 5 through the control interface 6, and control signals received by the wireless receiver are transmitted to the telescopic drive mechanism 5. This controls the telescopic drive mechanism 5 to drive the lid 2, which in turn drives the radiation container frame 3 to rotate through the linkage mechanism 4, entering either a detection state or a shielding state. Using a wireless transmitter allows operators to control the device away from the protective equipment of the radiopharmaceutical, reducing the radiation dose to workers and ensuring their health and safety.

[0074] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0075] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A protective device for radiopharmaceuticals, characterized in that, include: The enclosure, including the enclosure opening; The lid is slidably connected to the box body and has an open state that is located beside the box body away from the box body opening and a closed state that closes the box body opening; A radioactive container rack includes a rotating end and a frame end. The rotating end is rotatably connected to the inner wall of the box. The frame end has a detection state that protrudes above the box opening and a shielding state that is hidden inside the box. Radiopharmaceuticals are placed in vials or syringes, and the vials or syringes are fixed to the frame end. The linkage mechanism includes a first linkage end and a second linkage end. The first linkage end is hinged to the radiation container frame, and the second linkage end is hinged to the box cover. When the box cover is in the open state, the radiation container frame is in the detection state under the action of the linkage mechanism. When the box cover is in the closed state, the radiation container frame is in the shielding state under the action of the linkage mechanism. A telescopic drive mechanism includes a telescopic end and a fixed end, wherein the telescopic end and the fixed end are respectively hinged to the inner wall of the lid and the inner wall of the box body; the telescopic drive mechanism drives the lid to slide. The box includes a pair of liftable sliding components, which are respectively disposed on two opposite inner side walls inside the box opening; the box lid is slidably connected to the pair of liftable sliding components; when the telescopic drive mechanism drives the box lid into the open state, it drives the pair of liftable sliding components to make the entire box lid slide above the box opening; when the box lid is in the closed state, the pair of liftable sliding components are retracted into the box opening; The inner wall of the box lid includes an upper step and a lower step that gradually taper inward. When the box lid is closed, the surface of the upper step covers the edge of the box opening, and the lower step is fitted into the box opening.

2. The protective device for radiopharmaceuticals according to claim 1, characterized in that, Each liftable sliding component includes: a liftable guide rail, a fixed-length connector, and a variable-length connector; The liftable guide rail is slidably connected to the box cover. The liftable guide rail includes a first free end and a second free end. The second free end refers to the end of the liftable guide rail that is opposite to the opening direction of the box cover. One end of the fixed-length connector is rotatably connected to the first free end of the liftable guide rail, and the other end of the fixed-length connector is rotatably connected to one of the two opposing inner sidewalls, and the rotation plane of the fixed-length connector is parallel to the two opposing inner sidewalls. One end of the variable length connector is movably connected to the second free end of the liftable guide rail, and the other end of the variable length connector is movably connected to one of the two opposing inner sidewalls. When the telescopic drive mechanism drives the box cover into the open state, it causes the fixed-length connector and the variable-length connector to move, so that the first free end and the second free end of the liftable guide rail are higher than the box opening.

3. The protective device for radiopharmaceuticals according to claim 2, characterized in that, The distance between the two ends of the fixed-length connector is less than the maximum distance between the two ends of the variable-length connector.

4. The protective device for radiopharmaceuticals according to claim 3, characterized in that, The linkage mechanism includes a linkage rod. When the linkage rod moves to a plane perpendicular to the opening of the box, the distance between the two ends of the variable length connector is less than or equal to the maximum distance between the two ends of the variable length connector.

5. The protective device for radiopharmaceuticals according to claim 2, characterized in that, Each of the second free ends of the liftable guide rails also includes a limiting member, which causes the box cover to be reset on the liftable guide rail.

6. The protective device for radiopharmaceuticals according to claim 2, characterized in that, When the lid is closed, the line connecting the centers of the two rotating points of the fixed-length connector is parallel to the horizontal line.

7. The protective device for radiopharmaceuticals according to claim 2, characterized in that, The motion plane of the telescopic drive mechanism is parallel to the two opposing inner sidewalls; when the lid is closed, the projections of the telescopic end and the fixed end of the telescopic drive mechanism on the inner cover wall are both located on the rear half of the inner cover wall near the variable length connector, and the telescopic drive mechanism is tilted toward the side of the fixed length connector.

8. The protective device for radiopharmaceuticals according to claim 1, characterized in that, The protective device for the radiopharmaceutical also includes a control interface penetrating the housing, as well as a wireless receiver and a wireless transmitter; the wireless receiver is signal-connected to the telescopic drive mechanism through the control interface and supplies power to the telescopic drive mechanism, and the wireless transmitter is signal-connected to the wireless receiver.

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