Spraying disinfection device
By using a spray disinfection device to cover the surface of radioactive shielding containers with a mixture of high-pressure gas and disinfectant, the problem of bacterial contamination on the surface of shielding containers in the production of radiopharmaceuticals is solved, and the quality of solution preparation is improved.
Patent Information
- Application Number
- CN202422900284.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In existing radiopharmaceutical production processes, bacteria lurking on the surface of radioactive shielding containers can contaminate the shielding chamber, affecting the quality of the prepared solution.
A spray disinfection device was designed, which delivers high-pressure gas and disinfectant to the nozzle through the main air intake pipe and two air intake branches, respectively, and mixes them to form a disinfectant spray that covers the surface of the radioactive shielding container. A diaphragm pump and a gas filter are used to improve the disinfection effect.
This effectively reduces the risk of bacterial contamination on the surface of radioactive shielding containers and improves the quality of radiopharmaceutical preparations.
Smart Images

Figure CN223529744U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of radiopharmaceutical production systems, specifically to a spray disinfection device. Background Technology
[0002] Currently, in the production of radiopharmaceuticals, radioactive feed solutions are loaded into radioactive shielded containers and transferred from the receiving shielded chamber to the dispensing shielded chamber. Existing shielded chambers lack effective sterilization devices, and bacteria lurking on the surface of the radioactive shielded containers can contaminate the shielded chambers, even affecting the quality of the dispensed solutions. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a spray disinfection device with a simple structure that can disinfect the surface of liquid containers and reduce the risk of bacterial contamination.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A spray disinfection device includes a main air inlet pipe, a first air inlet branch pipe, a second air inlet branch pipe, a disinfectant container, and a nozzle. The disinfectant container is provided with a first air inlet and a first liquid outlet. The nozzle is provided with a second air inlet and a first liquid inlet. The main air inlet pipe is connected to the second air inlet through the first air inlet branch pipe, and the main air inlet pipe is connected to the first air inlet through the second air inlet branch pipe. The first liquid outlet is connected to the first liquid inlet.
[0006] As a further improvement to the above technical solution: the spray disinfection device also includes a delivery pump, which is provided with a third air inlet, a second liquid inlet and a second liquid outlet, the first liquid outlet is connected to the second liquid inlet and the second liquid outlet is connected to the first liquid inlet.
[0007] As a further improvement to the above technical solution: the delivery pump is a diaphragm pump.
[0008] As a further improvement to the above technical solution: a first pressure regulating valve is provided between the delivery pump and the nozzle.
[0009] As a further improvement to the above technical solution: a gas filter is provided on the main intake pipe.
[0010] As a further improvement to the above technical solution: both the first intake branch and the second intake branch are provided with a switching valve, a throttle valve and a second pressure regulating valve in sequence.
[0011] As a further improvement to the above technical solution, a safety valve is also provided on the disinfectant container.
[0012] As a further improvement to the above technical solution: the disinfectant container includes a container body, a container cap disposed on the container body, a sealing element disposed between the container body and the container cap, and a clamp for locking the container body and the container cap, wherein the two ends of the clamp are connected by threaded locking handles.
[0013] As a further improvement to the above technical solution: the nozzle is mounted on the adjusting rod, the adjusting rod is rotatably mounted on the support rod, and the support rod is mounted on the support platform.
[0014] As a further improvement to the above technical solution: the nozzle is provided with a needle valve plug at the first liquid inlet.
[0015] Compared with the prior art, the advantages of this utility model are:
[0016] The spray disinfection device disclosed in this utility model, during use, introduces high-pressure gas into the main air inlet pipe. A portion of the high-pressure gas is directly delivered to the nozzle through the first air inlet branch, while the other portion is delivered to the disinfectant container through the second air inlet branch. This provides power to the disinfectant in the container, increasing the pressure and flow rate of the disinfectant. After the disinfectant is delivered to the nozzle, it mixes with the high-pressure gas introduced through the first air inlet branch to form a disinfectant spray, which better covers the surface of the radioactive shielding container, greatly improving the disinfection effect, preventing bacteria hidden on the surface of the radioactive shielding container from contaminating the radioactive shielding chamber, and improving the quality of the solution preparation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the principle of the spray disinfection device of this utility model.
[0018] Figure 2 This is a three-dimensional structural diagram of the disinfectant container in this utility model.
[0019] Figure 3 This is a cross-sectional view of the disinfectant container in this utility model.
[0020] Figure 4 This is a schematic diagram of the main structure of the nozzle in this utility model.
[0021] Figure 5 This is a side view of the nozzle structure in this utility model.
[0022] Figure 6 This is a structural schematic diagram of the utility model in use.
[0023] The labels in the diagram represent:
[0024] 1. Main air intake pipe; 11. Gas filter; 2. First air intake branch; 3. Second air intake branch; 4. Disinfectant container; 41. First air inlet; 42. First liquid outlet; 43. Safety valve; 44. Container body; 45. Container cap; 46. Seal; 47. Clamp; 471. Threaded locking handle; 5. Nozzle; 51. Second air inlet; 52. First liquid inlet; 53. Adjusting rod; 54. Support rod; 55. Support platform; 56. Needle valve plug; 6. Delivery pump; 61. Third air inlet; 62. Second liquid inlet; 63. Second liquid outlet; 71. First pressure regulating valve; 72. Switch valve; 73. Throttling valve; 74. Second pressure regulating valve. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0029] like Figures 1 to 6As shown, the spray disinfection device of this embodiment includes a main air inlet pipe 1, a first air inlet branch pipe 2, a second air inlet branch pipe 3, a disinfectant container 4, and a nozzle 5. The disinfectant container 4 is provided with a first air inlet 41 and a first liquid outlet 42, and the nozzle 5 is provided with a second air inlet 51 and a first liquid inlet 52. The main air inlet pipe 1 is connected to the second air inlet 51 through the first air inlet branch pipe 2, and the main air inlet pipe 1 is connected to the first air inlet 41 through the second air inlet branch pipe 3. The first liquid outlet 42 is connected to the first liquid inlet 52. In specific applications, it is preferable to arrange the nozzle 5, the adjusting rod 53 for installing the nozzle 5, the support rod 54, and the support platform 55 in the radiation shielding chamber, and the disinfectant container 4 is arranged below the radiation shielding chamber. The disinfectant used is alcohol, which has good bactericidal effect and low cost.
[0030] In this embodiment of the spray disinfection device, when in use, high-pressure gas (e.g., air) is input into the main air intake pipe 1. A portion of the high-pressure gas is directly delivered to the nozzle 5 through the first air intake branch 2, while the other portion of the high-pressure gas is delivered to the disinfectant container 4 through the second air intake branch 3. This provides power to the alcohol in the disinfectant container 4, increasing the pressure and flow rate of the alcohol. After the alcohol is delivered to the nozzle 5, it mixes with the high-pressure gas input into the first air intake branch 2 to form a disinfectant spray, which better covers the surface of the radioactive shielding container, greatly improving the disinfection effect, avoiding contamination of the radioactive shielding chamber by bacteria hidden on the surface of the radioactive shielding container, and improving the quality of the solution preparation.
[0031] like Figure 1 As shown, in this embodiment, the spray disinfection device also includes a delivery pump 6. The delivery pump 6 is provided with a third air inlet 61, a second liquid inlet 62, and a second liquid outlet 63. The first liquid outlet 42 is connected to the second liquid inlet 62, and the second liquid outlet 63 is connected to the first liquid inlet 52. When a large amount of alcohol spray needs to be continuously supplied, the connection between the second air inlet branch 3 and the first air inlet 41 can be disconnected, and the second air inlet branch 3 can be connected to the third air inlet 61 of the delivery pump 6. Power is no longer provided by compressed gas, but by the delivery pump 6, which draws out the alcohol from the disinfectant container 4 and pumps it into the nozzle 5.
[0032] like Figure 1 As shown, in this embodiment, the delivery pump 6 is a diaphragm pump. Diaphragm pumps can achieve leak-free delivery, preventing corrosion of the pump body by the disinfectant. Furthermore, diaphragm pumps have excellent self-priming performance, enabling self-priming even with a large suction lift, thus improving disinfection efficiency. Of course, in other embodiments, the delivery pump 6 can also be other types of pumps.
[0033] like Figure 1 As shown, in this embodiment, a first pressure regulating valve 71 is provided between the delivery pump 6 and the nozzle 5. By providing the first pressure regulating valve 71, the atomization effect can be easily adjusted, thereby improving the applicability of the device.
[0034] like Figure 1 As shown, in this embodiment, a gas filter 11 is provided on the main air intake pipe 1. By setting the gas filter 11 on the main air intake pipe 1 to filter the gas input to the first air intake branch 2 and the second air intake branch 3, impurities in the air are effectively filtered, preventing impurities from contaminating the disinfectant in the disinfectant container 4 and clogging the nozzle 5, thereby further improving the reliability of the device.
[0035] like Figure 1 As shown in this embodiment, the first air intake branch 2 and the second air intake branch 3 are each equipped with a switching valve 72, a throttle valve 73, and a pressure regulating valve 74 in sequence. The switching valve 72 controls the opening and closing of the first air intake branch 2 and the second air intake branch 3; the throttle valve 73 precisely controls the gas flow rate, ensuring the stability and efficiency of the disinfection process; and the pressure regulating valve 74 adjusts the gas pressure, facilitating the adjustment of the atomization effect and thus improving the applicability of the device.
[0036] like Figure 2 and Figure 3 As shown, in this embodiment, the disinfectant container 4 is also equipped with a safety valve 43. By setting the safety valve 43 to detect the pressure of the disinfectant container 4 and automatically release pressure when the pressure is too high, the safety and reliability of the device are further improved. Specifically, the maximum allowable pressure of the safety valve 43 is 8 bar, and the normal operating pressure is 3 bar.
[0037] like Figure 2 and Figure 3 As shown, in this embodiment, the disinfectant container 4 includes a container body 44, a container cap 45 disposed on the container body 44, a sealing element 46 disposed between the container body 44 and the container cap 45, and a clamp 47 for locking the container body 44 and the container cap 45. A first air inlet 41, a first liquid outlet 42, and a safety valve 43 are disposed on the container cap 45. The two ends of the clamp 47 are connected by threaded locking handles 471. The sealing element 46 is provided between the container body 44 and the container cap 45 to improve the sealing performance of the disinfectant container 4. Specifically, the sealing element 46 can be, for example, a sealing ring or a sealing strip. When liquid needs to be added, first manually operate the safety valve 43 to release the pressure, then loosen the threaded locking handles 471 connecting the two ends of the clamp 47, remove the clamp 47 to release the locking between the container body 44 and the container cap 45, then open the container cap 45 and add the disinfectant into the container body 44. The operation is convenient and quick.
[0038] like Figures 4 to 6 As shown, in this embodiment, the nozzle 5 is mounted on the adjusting rod 53, which is rotatably mounted on the support rod 54, which is mounted on the support platform 55. Rotatably mounting the adjusting rod 53 on the support rod 54 facilitates adjustment of the angle between the nozzle 5 and the radioactive shielding container on the support platform 55, improving the adaptability of the device.
[0039] like Figure 4 As shown, in this embodiment, the nozzle 5 is provided with a needle valve plug 56 at the first liquid inlet 52. When the nozzle 5 is blocked by foreign objects, the needle valve plug 56 can be used for operation and maintenance, making it more convenient to use.
[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.
Claims
1. A spray disinfection device, characterized in that: It includes a main air intake pipe (1), a first air intake branch (2), a second air intake branch (3), a disinfectant container (4), and a nozzle (5). The disinfectant container (4) is provided with a first air inlet (41) and a first liquid outlet (42). The nozzle (5) is provided with a second air inlet (51) and a first liquid inlet (52). The main air intake pipe (1) is connected to the second air inlet (51) through the first air intake branch (2). The main air intake pipe (1) is connected to the first air inlet (41) through the second air intake branch (3). The first liquid outlet (42) is connected to the first liquid inlet (52).
2. The spray disinfection device according to claim 1, characterized in that: It also includes a delivery pump (6), which is provided with a third air inlet (61), a second liquid inlet (62) and a second liquid outlet (63). The first liquid outlet (42) is connected to the second liquid inlet (62), and the second liquid outlet (63) is connected to the first liquid inlet (52).
3. The spray disinfection device according to claim 2, characterized in that: The delivery pump (6) is a diaphragm pump.
4. The spray disinfection device according to claim 2, characterized in that: A first pressure regulating valve (71) is provided between the delivery pump (6) and the nozzle (5).
5. The spray disinfection device according to any one of claims 1 to 4, characterized in that: A gas filter (11) is provided on the main intake pipe (1).
6. The spray disinfection device according to claim 5, characterized in that: The first intake branch (2) and the second intake branch (3) are each provided with a switching valve (72), a throttle valve (73), and a second pressure regulating valve (74) in sequence.
7. The spray disinfection device according to any one of claims 1 to 4, characterized in that: The disinfectant container (4) is also equipped with a safety valve (43).
8. The spray disinfection device according to any one of claims 1 to 4, characterized in that: The disinfectant container (4) includes a container body (44), a container cap (45) disposed on the container body (44), a sealing element (46) disposed between the container body (44) and the container cap (45), and a clamp (47) for locking the container body (44) and the container cap (45), the two ends of the clamp (47) being connected by a threaded locking handle (471).
9. The spray disinfection device according to any one of claims 1 to 4, characterized in that: The nozzle (5) is mounted on the adjusting rod (53), which is rotatably mounted on the support rod (54), and the support rod (54) is mounted on the support platform (55).
10. The spray disinfection device according to any one of claims 1 to 4, characterized in that: The nozzle (5) is provided with a needle valve plug (56) at the first liquid inlet (52).