Intelligent waste radiation protection container for nuclear medicine department

Abstract

The intelligent waste radiation protection container for the nuclear medicine department comprises a lead barrel, first L-shaped fixing pieces are fixed to the outer walls of the two sides of the lead barrel respectively, and electric push rods are fixed to the outer walls of the tops of the first L-shaped fixing pieces. The radiation dosage in the lead barrel is monitored in real time through the NaI (T1) scintillator detector and the GM counting tube, and meanwhile, the real-time radiation dosage is displayed on the outer wall of the control panel, so that medical staff can know the real-time radiation dosage in the lead barrel without opening the lead barrel, meanwhile, a thick and heavy lead cover does not need to be lifted by themselves, and the working efficiency is improved. Garbage in the lead barrel can be conveniently taken out by a user, the labor intensity of medical staff is relieved, meanwhile, the weight and the volume, monitored by the distance measuring sensor and the weighing sensor, of the waste in the lead barrel can be transmitted to the control panel in real time, the control panel can display the volume and the weight data of the waste in the lead barrel on the screen, and therefore the waste can be conveniently taken out. And medical staff can clearly see the current waste storage amount in the lead barrel.

Description

Technical Field

[0001] This utility model relates to the field of medical recycling lead bucket technology, and in particular to an intelligent waste radiation protection container for nuclear medicine. Background Technology

[0002] Nuclear medicine utilizes nuclear science and technology to diagnose and treat diseases, serving as an effective means to assist clinical departments in making accurate diagnoses. However, the treatment and diagnosis processes in nuclear medicine generate a significant amount of radioactive waste, which is typically placed in lead containers. Traditional nuclear medicine lead containers have several drawbacks:

[0003] 1. High operational risk: The lid usually needs to be opened manually, and the lead lid is heavy, increasing the labor intensity of the operator. At the same time, manual operation exposes the operator to direct radiation from the radioactive material, increasing the risk of radiation exposure.

[0004] 2. Separation of Shielding and Dosage Monitoring: Traditional lead containers rely solely on physical shielding to reduce radiation leakage, but cannot monitor the internal radiation dose in real time. Monitoring requires manually opening the lid, which is not only cumbersome but also exposes operators to radiation.

[0005] 3. Inefficient capacity management: It mainly relies on manual observation to determine whether the trash cans are full. This method is prone to inaccurate judgment, which may lead to radioactive waste leakage or delays in disposal.

[0006] Therefore, in order to solve the problems existing in the above-mentioned technologies, an intelligent waste radiation protection container for nuclear medicine is proposed. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing an intelligent waste radiation protection container for nuclear medicine.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A smart radiation protection container for waste in nuclear medicine includes a lead bucket. A first L-shaped fixing plate is fixed to the outer walls of both sides of the lead bucket. An electric push rod is fixed to the top outer wall of the first L-shaped fixing plate. A fixing block is fixed to the output shaft of the electric push rod. A second L-shaped fixing plate is fixed to the top outer wall of the fixing block by screws. A slider is rotatably connected to one side outer wall of the second L-shaped fixing plate.

[0010] A set of connecting blocks is fixed to one side of the outer wall of the lead bucket. A lead cover is rotatably connected to the inner wall of the connecting blocks. A flange is fixed to the outer wall of the lead cover. Guide grooves are opened on both sides of the outer wall of the flange. The slider is slidably connected to the inner wall of the guide groove.

[0011] As a further improvement of this utility model: a distance measuring sensor and a NaI(Tl) scintillator detector are provided on the outer wall of the bottom of the lead cover, a GM counter tube is provided on the inner wall of one side of the lead bucket, and a weighing sensor is provided on the inner wall of the bottom of the lead bucket.

[0012] As a further embodiment of this utility model: a control panel, a warning light and a buzzer are provided on one side of the outer wall of the lead bucket. The warning light, buzzer, electric push rod, distance sensor, NaI(Tl) scintillator detector, GM counter tube and weighing sensor are electrically connected to the control panel respectively.

[0013] As a further embodiment of this utility model: an installation frame is fixed to the outer wall of the bottom of the lead bucket, a first connecting rod is rotatably connected to the inner wall of the installation frame, a foot pedal is fixed to one end of the first connecting rod, a second connecting rod is rotatably connected to the other end of the first connecting rod, a support frame is fixed to one side of the outer wall of the lead bucket, an L-shaped connecting rod is rotatably connected to the inner wall of the support frame, a set of connecting plates is fixed to the outer wall of the L-shaped connecting rod, and one end of the second connecting rod is rotatably connected to one side of the outer wall of the connecting plates.

[0014] As a further embodiment of this utility model: a sealing lead block is fixed to one end of the L-shaped connecting rod, a delivery hole is opened on the outer wall of the top of the lead cover, the sealing lead block is inserted into the inner wall of the delivery hole, and a spring is fixed between the first connecting rod and the lead bucket.

[0015] As a further improvement of this utility model, a set of handles is fixed to the outer wall of the top of the lead cover.

[0016] As a further improvement of this utility model: a radiation mark is fixed on the outer wall of the lead bucket, and lead glass is provided on the outer wall of the lead bucket.

[0017] As a further improvement of this utility model, a sealing ring is fixed to the outer wall of the bottom of the flange.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. When the radiation dose inside the lead container drops to an acceptable level for medical staff, they can put on radiation protection clothing and then use the control panel to control the electric push rod to move the fixing block and the second L-shaped fixing plate upwards. The lead cover is then opened by the slider connected to the inner wall of the guide groove. Medical staff can then remove the waste from the lead container for disposal without having to lift the heavy lead cover themselves, thus reducing their workload. At the same time, the weight and volume of the waste inside the lead container, monitored by the distance sensor and the weighing sensor, are transmitted to the control panel. The control panel displays the volume and weight of the waste inside the lead container on the screen, allowing medical staff to clearly see the current amount of waste stored inside the lead container.

[0020] 2. When medical staff walk to the side of the lead container, they only need to step on the foot pedal to push the second link at one end of the first link upward. When the second link moves upward, it will push the L-shaped connecting rod upward through the connecting piece connected to the outer wall, thereby causing the sealing lead block at one end of the L-shaped connecting rod to leave the delivery hole. Then, the radioactive waste can be delivered into the lead container through the delivery hole at the top of the lead cover. After releasing the foot pedal, the first link will reset under the elastic force of the spring and the gravity of the L-shaped connecting rod, thereby allowing the sealing lead block to block the top of the delivery hole again.

[0021] 3. When the electric push rod malfunctions and cannot be used, medical staff can unscrew the screws that fix the second L-shaped fixing plate and fixing block, and then pull the slider out from one side of the guide groove. Then, the lead cover can be opened by using the handle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of an intelligent waste radiation protection container for nuclear medicine proposed in this utility model;

[0023] Figure 2 This is a side view of the intelligent waste radiation protection container for nuclear medicine proposed in this utility model.

[0024] Figure 3 This is a schematic diagram showing the opening of the sealing lead block of an intelligent waste radiation protection container for nuclear medicine proposed in this utility model.

[0025] Figure 4 This is a schematic diagram showing the opening of the lead cap of an intelligent waste radiation protection container for nuclear medicine proposed in this utility model.

[0026] Figure 5 This is a schematic diagram of the internal structure of a lead bucket of an intelligent waste radiation protection container for nuclear medicine proposed in this utility model.

[0027] Figure 6 This is a schematic diagram of the slider structure of an intelligent waste radiation protection container for nuclear medicine proposed in this utility model;

[0028] Figure 7 This is a circuit diagram of an intelligent waste radiation protection container for nuclear medicine proposed in this utility model.

[0029] In the diagram: 1-Lead bucket, 2-Radiation sign, 3-Foot pedal, 4-Mounting frame, 5-Lead glass, 6-First L-shaped fixing plate, 7-Control panel, 8-Electric push rod, 9-Guide groove, 10-L-shaped connecting rod, 11-Sealing lead block, 12-Handle, 13-Lead cover, 14-Flanged edge, 15-Warning light, 16-Buzzer, 17-First connecting rod, 18-Spring, 19-Second connecting rod, 20-Connecting block, 21-Connecting plate, 22-Support frame, 23-Dispensing hole, 24-Sealing ring, 25-Distance sensor, 26-NaI(Tl) scintillator detector, 27-Slider, 28-Second L-shaped fixing plate, 29-GM counter tube, 30-Weighing sensor, 31-Fixing block. Detailed Implementation

[0030] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0031] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0032] Example 1

[0033] A smart radiation protection container for nuclear medicine waste, such as Figure 1-7 As shown, it includes a lead bucket 1. The lead bucket 1 has a first L-shaped fixing plate 6 fixed on each of its two outer walls. An electric push rod 8 is fixed on the top outer wall of the first L-shaped fixing plate 6. A fixing block 31 is fixed on the output shaft of the electric push rod 8. A second L-shaped fixing plate 28 is fixed on the top outer wall of the fixing block 31 by screws. A slider 27 is rotatably connected to one side outer wall of the second L-shaped fixing plate 28.

[0034] A set of connecting blocks 20 is fixed to one side of the outer wall of the lead bucket 1. A lead cover 13 is rotatably connected to the inner wall of the connecting blocks 20. A flange 14 is fixed to the outer wall of the lead cover 13. Guide grooves 9 are opened on both sides of the outer wall of the flange 14. The slider 27 is slidably connected to the inner wall of the guide groove 9.

[0035] The main shielding body, consisting of the lead bucket 1 and the lead cover 13, has a lead equivalent of ≥20mmPb and is composed of an electric push rod 8, a slider 27, and a guide groove 9 forming an electric cover opening system.

[0036] The bottom outer wall of the lead cover 13 is equipped with a ranging sensor 25 and a NaI(Tl) scintillator detector 26. The inner wall of one side of the lead bucket 1 is equipped with a GM counter tube 29, and the bottom inner wall of the lead bucket 1 is equipped with a weighing sensor 30. The NaI(Tl) scintillator detector 26 and the GM counter tube 29 form a dual monitoring system.

[0037] The outer wall of one side of the lead bucket 1 is provided with a control panel 7, a warning light 15 and a buzzer 16. The warning light 15, the buzzer 16, the electric push rod 8, the distance sensor 25, the NaI(Tl) scintillator detector 26, the GM counter tube 29 and the weighing sensor 30 are electrically connected to the control panel 7 respectively.

[0038] The dual monitoring system, ranging sensor 25, and weighing sensor 30 can monitor the weight and volume of waste in real time to prevent the leakage of radioactive solid waste. At the same time, the weight and volume of waste inside lead container 1 monitored by ranging sensor 25 and weighing sensor 30 are transmitted to control panel 7. Control panel 7 will display the volume and weight of waste inside lead container 1 on the screen, so that medical staff can clearly see the current amount of waste stored inside lead container 1.

[0039] A mounting frame 4 is fixed to the outer wall of the bottom of the lead bucket 1. A first connecting rod 17 is rotatably connected to the inner wall of the mounting frame 4. A foot pedal 3 is fixed to one end of the first connecting rod 17. A second connecting rod 19 is rotatably connected to the other end of the first connecting rod 17. A support frame 22 is fixed to one side of the outer wall of the lead bucket 1. An L-shaped connecting rod 10 is rotatably connected to the inner wall of the support frame 22. A set of connecting pieces 21 is fixed to the outer wall of the L-shaped connecting rod 10. One end of the second connecting rod 19 is rotatably connected to one side of the outer wall of the connecting piece 21.

[0040] One end of the L-shaped connecting rod 10 is fixed with a sealing lead block 11. The lead cover 13 has a delivery hole 23 on its top outer wall. The sealing lead block 11 is inserted into the inner wall of the delivery hole 23. A spring 18 is fixed between the first connecting rod 17 and the lead bucket 1.

[0041] In this embodiment, the sealing lead block 11 and the top of the lead cover 13 have mature sealing structures in existing lead waste bins. The specific structure and the fit tolerance between the sealing lead block 11 and the top of the lead cover 23 can be referred to the FWX-20 lead bin that can be purchased on the market.

[0042] The connecting rod 10 and the support frame 22 are located on the same axis as the rotating connection parts of the connecting block 20 and the lead cover 13. Therefore, the connecting rod 10, the sealing lead block 11 and the lead cover 13 can rotate up and down simultaneously without affecting each other.

[0043] When medical staff walk to the side of the lead container 1, they only need to step on the foot pedal 3 to push the second link 19 at one end of the first link 17 to move upward. When the second link 19 moves upward, it will push the L-shaped connecting rod 10 to flip upward through the connecting piece 21 connected to the outer wall, thereby causing the sealing lead block 11 at one end of the L-shaped connecting rod 10 to leave the delivery hole 23. Then, the radioactive waste can be delivered into the lead container 1 through the delivery hole 23 at the top of the lead cover 13. After releasing the foot pedal 3, the first link 17 will be reset under the elastic force of the spring 18 and the gravity of the L-shaped connecting rod 10, thereby allowing the sealing lead block 11 to block the top of the delivery hole 23 again.

[0044] The radiation dose of waste delivered into lead container 1 is monitored in real time by a NaI(Tl) scintillator detector 26 and a GM counter tube 29 installed inside lead container 1. At the same time, the real-time radiation dose is displayed on the outer wall of control panel 7, so that medical staff can know the real-time radiation dose inside lead container 1 without opening lead container 1. This avoids medical staff opening lead container 1 when the radiation dose inside lead container 1 exceeds the standard, thus improving the protection of medical staff.

[0045] When the radiation dose inside the lead container 1 drops to an acceptable level for medical staff, the medical staff, after putting on radiation protection clothing, can control the electric push rod 8 via the control panel 7 to push the fixing block 31 and the second L-shaped fixing plate 28 upwards. This causes the lead cover 13 to be opened by the slider 27 slidably connected to the inner wall of the guide groove 9. Subsequently, the medical staff can remove the waste inside the lead container 1 for disposal without having to lift the heavy lead cover 13 themselves, thus reducing the labor intensity of the medical staff.

[0046] When medical staff need to dispose of waste into the lead container 1, they only need to step on the foot pedal 3. This will push the L-shaped connecting rod 10 and the sealing lead block 11 upward through the lever structure composed of the first connecting rod 17 and the second connecting rod 19. This allows the waste to be disposed of into the lead container 1 through the disposal hole 23 on the top of the lead cover 13. After releasing the foot pedal 3, the L-shaped connecting rod 10 and the sealing lead block 11 will move back and reset under their own weight and the elastic force of the spring 18. This allows the sealing lead block 11 to cover the disposal hole 23 again and seal the disposal hole 23.

[0047] When medical staff need to remove the waste stored inside the lead container 1 for disposal, they can observe the radiation dose inside the lead container 1 through the control panel 7, and then control the electric push rod 8 through the control panel 7 to push the lead cover 13 upward and open it, thereby removing the waste inside the lead container 1.

[0048] In this embodiment, the radiation dose inside the lead bucket 1 is simultaneously detected by GM counter tube 29 and NaI(Tl) scintillator detector 26, which are respectively set at the top and bottom of the lead bucket 1. The radiation dose values ​​detected by GM counter tube 29 and NaI(Tl) scintillator detector 26 are displayed on the control panel 7, so that medical staff can understand the accurate value of the radiation dose in each part inside the lead bucket 1.

[0049] In this embodiment, the ranging sensor 25 is model HC-SR04. The ranging sensor 25 monitors the filling height of the waste inside the lead bucket 1. When the waste volume inside the lead bucket 1 exceeds three-quarters, the control panel 7 will control the buzzer 16 to sound an alarm and at the same time control the warning light 15 to light up, reminding medical staff to clean up the waste inside the lead bucket 1 in time.

[0050] In this embodiment, the weighing sensor 30 is a strain gauge weighing sensor. The weighing sensor 30 can monitor the weight of the waste inside the lead bucket 1 in real time. When the weight of the waste inside the lead bucket 1 exceeds 20kg, the control panel 7 will also control the buzzer 16 to sound an alarm and at the same time control the warning light 15 to light up, reminding medical staff to clean up the waste inside the lead bucket 1 in time.

[0051] A set of handles 12 are fixed to the top outer wall of the lead cap 13;

[0052] like Figure 6 As shown, when the electric push rod 8 malfunctions and cannot be used, medical staff can unscrew the screws that fix the second L-shaped fixing plate 28 and the fixing block 31, and then pull the slider 27 out from one side of the guide groove 9 to release the sliding connection between the slider 27 and the lead cover 13. Then, the lead cover 13 can be flipped up by the handle 12, so that the lead cover 13 can be manually flipped up when the electric push rod 8 malfunctions.

[0053] The lead bucket 1 is fixed with a radiation marker 2 on its outer wall, and a lead glass 5 is installed on the outer wall of the lead bucket 1; medical staff can see the inside of the lead bucket 1 directly through the lead glass 5.

[0054] A sealing ring 24 is fixed to the bottom outer wall of the flange 14. In this embodiment, the sealing ring 24 is a fluorosilicone rubber sealing ring. By setting the sealing ring 24 at the bottom of the flange 14, the sealing performance between the flange 14 and the top contact surface of the lead bucket 1 can be improved, thereby improving the sealing and protection effect of the lead cover 13 on the lead bucket 1. At the same time, the fluorosilicone rubber sealing ring on the outer wall of the flange 14 needs to be replaced every three years to ensure the sealing effect of the sealing ring 24.

[0055] In this embodiment, both the lead bucket 1 and the lead cover 13 are made of lead plates with a lead equivalent of 20 mmPb or greater, which complies with the requirements of GB 18871-2002 and can provide good radiation protection.

[0056] Working principle: When medical staff walk to the side of the lead container 1, they only need to step on the foot pedal 3 to push the second link 19 at one end of the first link 17 to move upward. When the second link 19 moves upward, it will push the L-shaped connecting rod 10 to flip upward through the connecting piece 21 connected to the outer wall, causing the sealing lead block 11 at one end of the L-shaped connecting rod 10 to leave the delivery hole 23. Then, the radioactive waste can be delivered into the lead container 1 through the delivery hole 23 at the top of the lead cover 13. After releasing the foot pedal 3, the first link 17 will be reset under the elastic force of the spring 18 and the gravity of the L-shaped connecting rod 10, so that the sealing lead block 11 can be blocked at the top of the delivery hole 23 again.

[0057] The radiation dose of waste delivered into the lead container 1 is monitored in real time by a NaI(Tl) scintillator detector 26 and a GM counter tube 29 installed inside the lead container 1. The real-time radiation dose is also displayed on the outer wall of the control panel 7, allowing medical staff to understand the real-time radiation dose inside the lead container 1 without opening it. When the radiation dose inside the lead container 1 drops to an acceptable level for the medical staff, they can put on radiation protection clothing and then control the electric push rod 8 through the control panel 7 to push the fixing block 31 and the second L-shaped fixing plate 28 upward. This causes the lead cover 13 to be opened by the slider 27 that is slidably connected to the inner wall of the guide groove 9. The medical staff can then remove the waste from the lead container 1 for disposal.

[0058] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nuclear medicine department intelligent waste radiation protection container comprising a lead barrel (1), characterized in that, The lead bucket (1) is fixed with a first L-shaped fixing plate (6) on each of its two outer walls. An electric push rod (8) is fixed on the top outer wall of the first L-shaped fixing plate (6). A fixing block (31) is fixed on the output shaft of the electric push rod (8). A second L-shaped fixing plate (28) is fixed on the top outer wall of the fixing block (31) by screws. A slider (27) is rotatably connected to one side outer wall of the second L-shaped fixing plate (28). A set of connecting blocks (20) is fixed on one side of the outer wall of the lead bucket (1). A lead cover (13) is rotatably connected to the inner wall of the connecting block (20). A flange (14) is fixed on the outer wall of the lead cover (13). Guide grooves (9) are opened on both sides of the outer wall of the flange (14). The slider (27) is slidably connected to the inner wall of the guide groove (9).

2. The intelligent waste radiation shielding container for nuclear medicine department according to claim 1, wherein, The bottom outer wall of the lead cover (13) is provided with a ranging sensor (25) and a NaI(Tl) scintillator detector (26), the inner wall of one side of the lead bucket (1) is provided with a GM counter tube (29), and the inner wall of the bottom of the lead bucket (1) is provided with a weighing sensor (30).

3. The intelligent waste radiation shielding container for nuclear medicine department according to claim 2, characterized in that, The lead bucket (1) is provided with a control panel (7), a warning light (15) and a buzzer (16) on one side of its outer wall. The warning light (15), the buzzer (16), the electric push rod (8), the distance sensor (25), the NaI(Tl) scintillator detector (26), the GM counter tube (29) and the weighing sensor (30) are electrically connected to the control panel (7).

4. The intelligent waste radiation shielding container for nuclear medicine department according to claim 3, wherein, The bottom outer wall of the lead bucket (1) is fixed with an installation frame (4), the inner wall of the installation frame (4) is rotatably connected with a first connecting rod (17), one end of the first connecting rod (17) is fixed with a foot pedal (3), the other end of the first connecting rod (17) is rotatably connected with a second connecting rod (19), one side outer wall of the lead bucket (1) is fixed with a support frame (22), the inner wall of the support frame (22) is rotatably connected with an L-shaped connecting rod (10), the outer wall of the L-shaped connecting rod (10) is fixed with a set of connecting pieces (21), one end of the second connecting rod (19) is rotatably connected to one side outer wall of the connecting piece (21).

5. The intelligent waste radiation shielding container for nuclear medicine department according to claim 4, wherein, One end of the L-shaped connecting rod (10) is fixed with a sealing lead block (11), and the top outer wall of the lead cover (13) has a delivery hole (23). The sealing lead block (11) is inserted into the inner wall of the delivery hole (23), and a spring (18) is fixed between the first connecting rod (17) and the lead bucket (1).

6. The intelligent waste radiation shielding container for nuclear medicine department according to claim 5, wherein, A set of handles (12) is fixed to the top outer wall of the lead cap (13).

7. The intelligent waste radiation shielding container for nuclear medicine department according to claim 6, wherein, The lead bucket (1) has a radiation mark (2) fixed on its outer wall, and lead glass (5) is installed on the outer wall of the lead bucket (1).

8. The intelligent waste radiation shielding container for nuclear medicine department according to claim 7, characterized in that, A sealing ring (24) is fixed to the bottom outer wall of the flange (14).

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