Radioactive liquid medicine split charging instrument
By setting up a protective shielding structure in the radioactive drug dispensing instrument, the problem of radiation leakage caused by unshielded infusion pipelines is solved, achieving a safer operating environment and flexible shielding adaptation. Multi-layer composite shielding materials and sliding connection design are adopted.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-03
AI Technical Summary
Existing radioactive drug dispensing instruments lack effective shielding in the infusion pipeline, allowing radiation or particles in the radioactive drug solution to penetrate the pipe wall, resulting in excessive local radiation doses and radiation release during drug decay, thus affecting the safety of the operating environment.
The system employs a protective shielding structure, including a main shielding box, a secondary shielding box, a main shielding cover, and a secondary shielding cover. It utilizes a multi-layered composite shielding structure made of lead plates, boron-containing polyethylene plates, and tungsten alloy plates. The system uses sliding connections and limiting blocks to wrap and shield the infusion pipeline, reducing radiation leakage.
It effectively reduces the risk of radiation leakage during the delivery process of infusion pipelines, improves the safety and shielding effect of the operating environment, prevents pipeline entanglement and wear, and adapts to flexible adjustment of the spacing between different dispensing units.
Smart Images
Figure CN224075808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radioactive drug dispensing technology, and more specifically, to a radioactive drug dispensing instrument. Background Technology
[0002] Radiopharmaceutical solutions are liquid drug preparations containing radioactive isotopes (radionuclear substances) that have been medically validated for diagnostic or therapeutic use. Essentially, they are complexes formed by the chemical bonding or physical adsorption of radioactive isotopes and bioactive molecules (such as small molecules, antibodies, and peptides). These complexes can specifically target human tissues or organs, utilizing the radiation generated by radioactive decay to achieve functional imaging or targeted therapy. After extraction, radiopharmaceutical solutions need to be precisely dispensed into syringes or vials according to clinical needs; this process typically utilizes a radiopharmaceutical dispensing device.
[0003] Existing radiopharmaceutical dispensing devices typically consist of two main dispensing units: one for drawing and delivering the radiopharmaceutical from the source solution bottle, and the other for dispensing the radiopharmaceutical. However, the two dispensing units are connected by an infusion line, which is directly exposed to the operating environment during the dispensing process. Without effective shielding between the main units, radiation or particles from the radiopharmaceutical can penetrate the infusion line, causing localized radiation doses to exceed limits. Furthermore, residual radiopharmaceutical within the infusion line continues to release radiation during decay, posing a safety hazard to the operating environment. Therefore, there is an urgent need for a radiopharmaceutical dispensing device capable of providing radiation protection shielding for the exposed infusion line to address these issues. Utility Model Content
[0004] To address the shortcomings of existing methods, this invention provides a radioactive drug dispensing device that reduces the risk of radiation leakage to operators and the environment during the delivery of drugs in infusion pipelines through a protective shielding structure.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A radioactive drug liquid dispensing device includes a dispensing main unit 1, a dispensing main unit 2, and a protective shielding mechanism. The dispensing main unit 2 is located on the right side of the dispensing main unit 1, and the protective shielding mechanism is provided between the dispensing main unit 2 and the dispensing main unit 1.
[0007] The protective shielding mechanism includes a main shielding box, a secondary shielding box, a main shielding cover plate, fixed ear plates, a secondary shielding cover plate, and a duct groove. The main shielding box has two sets of secondary shielding boxes with matching specifications symmetrically arranged on the left and right sides inside. The secondary shielding boxes can slide left and right inside the main shielding box. The main shielding cover plate is bolted to the front end of the main shielding box, and the secondary shielding cover plate is bolted to the front end of the secondary shielding box. Two sets of ear plates are fixed to the rear side of the two sets of secondary shielding boxes near the outer edge. Multiple sets of evenly arranged U-shaped duct grooves are opened on the outer surface of the two sets of secondary shielding boxes.
[0008] Furthermore, a horizontal partition is provided between two adjacent sets of the tubes, and the partition is fixedly connected to the inner wall of the secondary shielding box.
[0009] Furthermore, a layer of rubber-coated gasket is adhered to the inner wall of the tube groove.
[0010] Furthermore, the secondary shielding box has sliding plates fixed on both the upper and lower end faces, and the main shielding box has sliding grooves on both the upper and lower sides of its inner wall that are adapted to the sliding plates. The sliding plates are inserted into the sliding grooves and slidably connected to them.
[0011] Furthermore, limiting blocks are fixed on both the front and rear sides of the inner end of the skateboard.
[0012] Furthermore, two sets of locking bolts are symmetrically arranged on the left and right sides of the upper end face of the main shielding box, and the lower end of the locking bolts extends through into the sliding groove.
[0013] Furthermore, the main shielding box, the secondary shielding box, the main shielding cover, and the secondary shielding cover all adopt a three-layer structure, wherein the outer layer is a lead plate, the middle layer is a boron-containing polyethylene plate, and the inner layer is a tungsten alloy plate.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This utility model forms a protective shielding structure by setting a main shielding box and a secondary shielding box in conjunction with the main shielding cover and the secondary shielding cover. This can effectively reduce the risk of radiation leakage of the medicine in the infusion pipeline to the operators and the environment during the transportation process, and improve the safety of the operating environment. At the same time, the use of lead plate, boron-containing polyethylene plate and tungsten alloy plate to form a multi-layer composite shielding structure further improves the radiation shielding effect.
[0016] 2. In this utility model, a horizontal partition is provided between two adjacent sets of tubing, and the partition is fixedly connected to the inner wall of the secondary shielding box. The partition can separate adjacent infusion lines, prevent entanglement between infusion lines, and enhance the structural strength of the secondary shielding box.
[0017] 3. In this utility model, a layer of rubber pad is pasted on the inner wall of the tube groove. The rubber pad is a lead-containing silicone rubber base material rubber pad. The rubber pad is used to avoid direct collision between the infusion pipeline and the metal wall of the tube groove, and to prevent the tube wall from being scratched and worn.
[0018] 4. In this utility model, sliding plates are fixedly provided on both the upper and lower end faces of the secondary shielding box, and sliding grooves adapted to the sliding plates are provided on both the upper and lower sides of the inner wall of the main shielding box. The sliding plates are inserted into the sliding grooves and slidably connected with them. The sliding plates and sliding grooves play a guiding role in the sliding between the secondary shielding box and the main shielding box, reducing jamming during the sliding process and improving the smoothness of the sliding of the secondary shielding box. Limiting blocks are fixedly provided on both the front and rear sides of the inner end face of the sliding plates. The limiting blocks can limit the sliding stroke of the secondary shielding box and prevent the secondary shielding box from sliding excessively and falling out of the main shielding box.
[0019] 5. In this utility model, the secondary shielding box can slide left and right inside the main shielding box. Through the split structure of the main shielding box and the secondary shielding box, it can adapt to different spacing between the main units and flexibly adjust the shielding area. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the protective shielding mechanism in this utility model.
[0022] Figure 3 This is a schematic diagram showing the disassembled structure of the protective shielding mechanism in this utility model.
[0023] Figure 4 This is a partial structural schematic diagram of the present invention.
[0024] Figure 5 This is a partial cross-sectional view of the present invention.
[0025] In the diagram: 1. Sub-packaging main unit one; 2. Sub-packaging main unit two; 3. Protective shielding mechanism; 31. Main shielding box; 32. Secondary shielding box; 33. Main shielding cover plate; 34. Fixing ear plate; 35. Secondary shielding cover plate; 36. Locking bolt; 37. Slide plate; 38. Tube groove; 39. Rubber pad; 310. Partition plate; 311. Slide groove; 312. Limiting block. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0027] Example:
[0028] like Figures 1 to 5 As shown, a radioactive drug liquid dispensing device includes a dispensing host 1, a dispensing host 2, and a protective shielding mechanism 3. The dispensing host 2 is located on the right side of the dispensing host 1, and the protective shielding mechanism 3 is provided between the dispensing host 2 and the dispensing host 1.
[0029] The protective shielding mechanism 3 includes a main shielding box 31, a secondary shielding box 32, a main shielding cover plate 33, a fixing ear plate 34, a secondary shielding cover plate 35, and a pipe groove 38. Two sets of secondary shielding boxes 32, each matching its specifications, are symmetrically arranged on the left and right sides inside the main shielding box 31. The main shielding box 31, in conjunction with the secondary shielding boxes 32, can effectively enclose and shield the infusion tubing, reducing radiation leakage and improving the safety of the operating environment. The secondary shielding boxes 32 can slide left and right inside the main shielding box 31. The separate structure of the main shielding box 31 and the secondary shielding box 32 allows for adaptation to different spacing between dispensing units, flexibly adjusting the shielding area. The main shielding cover plate is bolted to the front end of the main shielding box 31. 33. The front end of the secondary shielding box 32 is bolted with a secondary shielding cover plate 35. Two sets of ear plates are fixed on the rear side of both sets of secondary shielding boxes 32 near the outer edge. Multiple sets of evenly arranged U-shaped tube grooves 38 are opened on the outer surface of both sets of secondary shielding boxes 32. The tube grooves 38 are used for the entry and exit of the infusion pipeline. This design solves the problem that in the existing radioactive drug filling instrument, the infusion pipeline is directly exposed to the operating environment during the filling process, and there is no effective shielding between the main units. The radiation or particles in the radioactive drug can penetrate the tube wall, causing the local radiation dose to exceed the standard. In addition, the residual drug in the infusion pipeline continues to release radiation during the decay process, which is not conducive to the safety of the operating environment.
[0030] In this embodiment, a horizontal partition 310 is provided between two adjacent sets of tubing 38, and the partition 310 is fixedly connected to the inner wall of the sub-shielding box 32. The partition 310 can separate adjacent infusion lines, prevent entanglement between infusion lines, and enhance the structural strength of the sub-shielding box 32.
[0031] In this embodiment, a layer of rubber pad 39 is attached to the inner wall of the tubing 38. The rubber pad 39 is a lead-containing silicone rubber substrate rubber pad 39. The rubber pad 39 is used to avoid direct collision between the infusion tubing and the metal wall of the tubing 38, and to prevent scratches and wear on the tubing wall.
[0032] In this embodiment, a sliding plate 37 is fixedly provided on both the upper and lower end faces of the secondary shielding box 32, and a sliding groove 311 adapted to the sliding plate 37 is provided on both the upper and lower sides of the inner wall of the main shielding box 31. The sliding plate 37 is inserted into the sliding groove 311 and slidably connected with it. The sliding plate 37 and the sliding groove 311 play a guiding role in the sliding between the secondary shielding box 32 and the main shielding box 31, reducing jamming during the sliding process and improving the smoothness of the sliding process of the secondary shielding box 32.
[0033] In this embodiment, limiting blocks 312 are fixed on both the front and rear sides of the inner end face of the slide plate 37. The limiting blocks 312 can limit the sliding stroke of the secondary shielding box 32 and prevent the secondary shielding box 32 from sliding excessively and falling out of the main shielding box 31.
[0034] In this embodiment, two sets of locking bolts 36 are symmetrically arranged on the left and right sides of the upper end face of the main shielding box 31. The lower end of the locking bolt 36 extends through into the slide groove 311. The pre-tightening force of the locking bolt 36 can hold the slide plate 37 on the secondary shielding box 32, and rigidly connect the slide plate 37 of the secondary shielding box 32 with the slide groove 311 of the main shielding box 31, thereby achieving the clamping and fixing of the secondary shielding box 32 and preventing it from sliding during the installation process and affecting the installation.
[0035] In this embodiment, the main shielding box 31, the secondary shielding box 32, the main shielding cover 33, and the secondary shielding cover 35 all adopt a three-layer structure, wherein the outer layer is a lead plate, the middle layer is a boron-containing polyethylene plate, and the inner layer is a tungsten alloy plate. The use of lead plate, boron-containing polyethylene plate, and tungsten alloy plate to form a multi-layer composite shielding structure further improves the radiation shielding effect.
[0036] The working principle of this radioactive drug dispensing instrument:
[0037] In actual use, first place the protective shielding mechanism 3 between the first dispensing unit 1 and the second dispensing unit 2. Then, loosen the locking bolt 36 to release the lock on the secondary shielding box 32. Pull the left secondary shielding box 32 outward until its left end face is against the surface of the first dispensing unit 1. Then, tighten the locking bolt 36 to lock the secondary shielding box 32 and prevent it from sliding during installation. Connect the fixing ear plate 34 to the first dispensing unit 1. Next, pull the right secondary shielding box 32 outward until its right end face is against the surface of the second dispensing unit 2. Tighten the locking bolt 36 to lock the secondary shielding box 32. Use bolts to connect the fixing ear plate 34 to the second dispensing unit 2. Open the main shielding cover 33 and the secondary shielding cover 35, and insert the infusion tubing along the tubing groove 38 into the main shielding box 31 and the secondary shielding box 32. Finally, install the main shielding cover 33 and the secondary shielding cover 35. The main shielding box 31, together with the secondary shielding box 32, can effectively enclose and shield the infusion tubing, reducing radiation leakage and improving the safety of the operating environment.
[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A radioactive drug dispensing apparatus, characterized in that: Including subpackaging host one (1), subpackaging host two (2) and protective shielding mechanism (3), subpackaging host one (1) right side is provided with subpackaging host two (2), and protective shielding mechanism (3) is arranged between subpackaging host two (2) and subpackaging host one (1); The protective shielding mechanism (3) includes a main shielding box (31), a secondary shielding box (32), a main shielding cover plate (33), a fixed ear plate (34), a secondary shielding cover plate (35) and a pipe groove (38), the main shielding box (31) is internally and symmetrically provided with two groups of secondary shielding boxes (32) which are matched with the size thereof, the secondary shielding box (32) can slide left and right in the main shielding box (31), the main shielding box (31) is provided with a main shielding cover plate (33) at the front end through bolts, the secondary shielding box (32) is provided with a secondary shielding cover plate (35) at the front end through bolts, two groups of the secondary shielding boxes (32) are fixedly provided with two groups of ear plates near the outer edge at the back side, a plurality of uniformly arranged U-shaped pipe grooves (38) are formed on the outer side of the two groups of secondary shielding boxes (32).
2. The radiopharmaceutical liquid dispensing apparatus according to claim 1, characterized in that: Adjacent two groups of the pipe grooves (38) are provided with horizontal structure of the partition (310), and the partition (310) is fixedly connected to the inner wall of the secondary shielding box (32).
3. The radiopharmaceutical liquid dispensing apparatus according to claim 1, wherein: A layer of rubber pad (39) is attached to the inner wall of the pipe groove (38).
4. The radiopharmaceutical liquid dispensing apparatus according to claim 1, wherein: The secondary shielding box (32) is fixedly provided with a sliding plate (37) on the upper and lower end faces, and the inner wall of the main shielding box (31) is provided with a sliding groove (311) matched with the sliding plate (37) on the upper and lower sides, and the sliding plate (37) is clamped into the sliding groove (311) and is connected with the sliding groove (311).
5. The radiopharmaceutical liquid dispensing apparatus according to claim 4, wherein: The limit block (312) is fixedly arranged on the front and rear sides of the inner end face of the sliding plate (37).
6. The radiopharmaceutical liquid dispensing apparatus according to claim 4, wherein: The main shielding box (31) is symmetrically provided with two groups of locking bolts (36) on the left and right sides of the upper end face, and the lower end of the locking bolt (36) penetrates into the sliding groove (311).
7. The radiopharmaceutical liquid dispensing apparatus according to claim 1, wherein: The main shielding box (31), the secondary shielding box (32), the main shielding cover plate (33) and the secondary shielding cover plate (35) all adopt a three-layer structure, wherein the outer layer is a lead plate, the middle layer is a boron-containing polyethylene plate, and the inner layer is a tungsten alloy plate.