Radioactive medical liquid separation device
By designing a radioactive medical liquid dispensing device, and utilizing technologies such as needle clamping, rotary drive motor, and three-way valve switching, the reliability problem of the I-131 nuclide raw liquid dispensing equipment was solved, and safe and reliable liquid dispensing and packaging were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU SHANZHECHENG AUTOMATION TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
The lack of a simple and reliable I-131 nuclide stock solution separation device in the existing technology leads to inconvenience in operation and safety risks.
A radioactive medical liquid dispensing device was designed, including a mixing mechanism, a liquid dispensing mechanism, a finished liquid filling mechanism, a vial cap picking and placing mechanism, a vial capping mechanism, and a vial transfer mechanism. Through needle clamping, a rotary drive motor, a three-way valve switching, and capping action, reliable liquid dispensing and reliable capping of vials are achieved.
It enables reliable dispensing of mixed liquids and reliable sealing of vials, ensuring the safety and reliability of the dispensing process and reducing the radiation risk to operators.
Smart Images

Figure CN224172443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radioactive medical liquid dispensing technology, and in particular to a radioactive medical liquid dispensing device. Background Technology
[0002] This technology mainly involves the separation of I-131 radionuclide stock solution, a solution containing radioactive iodine-131, primarily used in the field of nuclear medicine. I-131 is widely used in the treatment of thyroid cancer and hyperthyroidism, destroying thyroid tissue by emitting beta particles and gamma rays. Because I-131 is radioactive, strict radiation protection measures are required during its use. Operators must wear lead aprons, protective gloves, and other protective equipment. Currently, there is no existing equipment for separating I-131 radionuclide stock solution.
[0003] Therefore, there is an urgent need to develop a simple and reliable device for dispensing radioactive medical liquids. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide a radioactive medical liquid dispensing device. The technical solution adopted by this utility model is as follows:
[0005] A radioactive medical liquid dispensing device dispenses mixed liquid into vials and caps and stoppers. It includes an installation platform, a mixing mechanism, a liquid dispensing mechanism, a finished liquid filling mechanism, a vial cap picking and placing mechanism, and a vial capping mechanism arranged sequentially along the dispensing production line on the installation platform, a vial transfer mechanism mounted on the installation platform and carrying the vials, and an industrial control computer electrically connected to the mixing mechanism, liquid dispensing mechanism, finished liquid filling mechanism, vial cap picking and placing mechanism, vial capping mechanism, and vial transfer mechanism. The mixing mechanism contains a mixing intermediate bottle containing the mixed liquid to be dispensed. The liquid dispensing mechanism extracts the liquid from the mixing intermediate bottle and injects it into the vials. The vial cap picking and placing mechanism inserts caps and stoppers into the vials and uses the vial capping mechanism to cap them.
[0006] Furthermore, the mixing mechanism includes a first mounting base mounted on the mounting fixture, a three-axis moving assembly and a mixing intermediate bottle mounting base disposed on the first mounting base, and a needle clamping mechanism disposed on the three-axis moving assembly; the mixing intermediate bottle is disposed inside the mixing intermediate bottle mounting base; the needle clamping mechanism is provided with a first needle, a second needle and a third needle.
[0007] Furthermore, the needle clamping mechanism includes a rear support plate fixed on a three-axis moving assembly, a clamping head assembly disposed on the rear support plate, a front support plate covering the rear support plate, and a connecting knob assembly disposed on the rear support plate and the front support plate; the clamping head assembly is pressed against the front support plate; the first needle, the second needle, and the third needle are positioned between the rear support plate and the front support plate; the first needle, the second needle, and the third needle are disposed at the upper part of the mixing intermediate bottle.
[0008] Furthermore, the three-axis moving assembly includes a first lateral moving mechanism fixed on a first mounting base, a first front-back moving mechanism disposed on the first lateral moving mechanism, a first longitudinal moving module disposed on the first front-back moving mechanism, and a clamping device mounting bracket disposed on the first longitudinal moving module; the needle clamping mechanism is fixed on the clamping device mounting bracket.
[0009] Furthermore, the liquid dispensing mechanism includes a second mounting base fixed on the mounting fixture, a rotary drive motor, a rotary clamping cylinder, and an injection pump fixed on the second mounting base, a rotary drive shaft connected to the rotary drive motor, a three-way valve mounting base disposed on the rotary clamping cylinder, and a three-way valve installed in the three-way valve mounting base and positioned between the rotary drive shaft and the three-way valve mounting base; the rotary drive motor rotates the rotary drive shaft and switches the flow of the three-way valve; the three-way valve is connected to the second needle and the injection pump via pipelines.
[0010] Furthermore, the finished drug liquid filling mechanism includes a third mounting base fixed on the mounting fixture, a second longitudinal moving module disposed on the third mounting base, a second connecting rod disposed on the second longitudinal moving module, a needle mounting base installed at the front end of the second connecting rod, and a fourth needle installed in the needle mounting base; the fourth needle faces the vial and is connected to the three-way valve by a pipeline.
[0011] Furthermore, the vial cap picking and placing mechanism includes a first mounting base fixed on the mounting fixture, a first cylinder and a second cylinder disposed on the first mounting base, a first nozzle mounting base connected to the first cylinder, a first nozzle disposed on the first nozzle mounting base, a second nozzle mounting base connected to the second cylinder, and a second nozzle disposed on the second nozzle mounting base; the first nozzle adsorbs the vial cap and places it on the vial; the second nozzle adsorbs the vial cap stopper and places it on the vial.
[0012] Furthermore, the vial capping mechanism includes a second mounting frame fixed on the mounting fixture, a capping motor mounted on the second mounting frame, and a capping head mounted below the capping motor; the capping head caps the vial cap and the cap stopper onto the vial.
[0013] Furthermore, the vial transfer mechanism includes a third mounting base fixed on the mounting fixture, a second lateral movement module disposed on the third mounting base, a transverse movement stage connected to and driven by the second lateral movement module to move laterally, and a vial mounting cylinder disposed on the transverse movement stage; the vial is disposed inside the vial mounting cylinder.
[0014] Furthermore, the installation fixture is provided with a rear protective cover and a front protective cover; a sliding groove is provided on the front protective cover; a capping protective cover is provided on the front protective cover; the front end of the mixing mechanism slides along the sliding groove; the vial capping mechanism is placed inside the capping protective cover.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) This utility model sets up a mixing mechanism and drives the first needle, the second needle and the third needle to move up and down, and injects the mixed liquid into the mixing intermediate bottle, and then uses the second needle to draw it out (which is connected to the medicine dispensing mechanism by a pipeline), so as to ensure that the mixing and storage is reliable.
[0017] (2) This utility model sets up a liquid dispensing mechanism and a finished liquid filling mechanism, and uses a rotary drive motor and a rotary drive shaft to switch the three-way valve; when liquid needs to be drawn, the second needle is inserted into the mixing intermediate bottle, and the injection pump is connected to the second needle through the three-way valve to draw in liquid. When dispensing to the vial, the three-way valve switches to connect the injection pump to the fourth needle, and at this time, the fourth needle is inserted into the vial, and its dispensing action is reliable.
[0018] (3) This utility model has a reliable operation by setting up a bottle cap picking and placing mechanism and a bottle capping mechanism, and by feeding and capping the bottle cap and bottle cap stopper.
[0019] In summary, this invention has the advantages of simple structure and reliable liquid separation, and has high practical and promotional value in the field of radioactive medical liquid separation technology. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2This is a schematic diagram of the structure of this utility model after the front protective cover has been removed.
[0023] Figure 3 This is a schematic diagram of the mixing mechanism in this utility model.
[0024] Figure 4 This is a partial structural diagram of the mixing mechanism in this utility model.
[0025] Figure 5 This is a schematic diagram of the traditional Chinese medicine liquid dispensing mechanism of this utility model.
[0026] Figure 6 This is a schematic diagram of the finished drug liquid filling mechanism of this utility model.
[0027] Figure 7 This is a schematic diagram of the bottle cap taking and placing mechanism of the present invention.
[0028] Figure 8 This is a schematic diagram of the capping mechanism for vials in this utility model.
[0029] Figure 9 This is a schematic diagram of the vial transfer mechanism in this utility model.
[0030] In the above figures, the component names corresponding to the reference numerals are as follows:
[0031] 100. Vial; 200. Bottle Cap; 300. Bottle Cap Plug; 1. Mounting Fixture; 2. Mixing Mechanism; 3. Liquid Dispensing Mechanism; 4. Finished Liquid Filling Mechanism; 5. Vial Cap Picking and Placing Mechanism; 6. Vial Capping Mechanism; 7. Vial Transfer Mechanism; 8. Industrial Control Computer; 11. Rear Protective Cover; 12. Front Protective Cover; 121. Sliding Groove; 13. Capping Protective Cover; 21. First Mounting Base; 22. First Lateral Moving Mechanism; 23. First Forward and Backward Moving Mechanism; 24. First Longitudinal Moving Module; 25. Clamping Mounting Frame; 26. Mixing Intermediate Bottle Mounting Base; 27. Mixing Intermediate Bottle; 28. Needle Clamping Mechanism; 281. Rear Support Plate; 282. Front Support Plate; 283. Clamping Head Assembly; 284. Connecting Knob Assembly; 285 1. First needle; 286. Second needle; 287. Third needle; 31. Second mounting base; 32. Rotary drive motor; 33. Rotary drive shaft; 34. Three-way valve; 35. Rotary clamping cylinder; 36. Three-way valve mounting base; 37. Injection pump; 41. Third mounting base; 42. Second longitudinal movement module; 43. Second connecting rod; 44. Needle mounting base; 45. Fourth needle; 51. First mounting base; 52. First cylinder; 53. Second cylinder; 54. First nozzle mounting base; 55. Second nozzle mounting base; 56. First nozzle; 57. Second nozzle; 61. Second mounting bracket; 62. Capping motor; 63. Capping head; 71. Third mounting base; 72. Second transverse movement module; 73. Transverse movement stage; 74. Vial mounting cylinder. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0033] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.
[0034] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.
[0035] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0036] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.
[0037] like Figures 1 to 9 As shown, this embodiment provides a radioactive medical liquid dispensing device that dispenses mixed liquid into vials 100 and then caps 200 and stoppers 300. It mainly includes a mounting platform 1, a mixing mechanism 2, a liquid dispensing mechanism 3, a finished liquid filling mechanism 4, a vial cap picking and placing mechanism 5, a vial capping mechanism 6, a vial transfer mechanism 7, and an industrial control computer 8. The mixing mechanism 2, liquid dispensing mechanism 3, finished liquid filling mechanism 4, vial cap picking and placing mechanism 5, vial capping mechanism 6, and vial transfer mechanism 7 are electrically connected to the industrial control computer 8. The mounting platform 1 is equipped with a rear protective cover 11 and a front protective cover 12. A sliding groove 121 is formed on the front protective cover 12, and a capping protective cover 13 is provided on the front protective cover 12. The front end of the mixing mechanism 2 slides along the sliding groove 121, and the vial capping mechanism 6 is placed inside the capping protective cover 13.
[0038] Here, the intermediate mixing bottle 27 is used to store the mixed liquid to be separated. Here, the mixing mechanism 2 includes a first mounting base 21 mounted on the mounting fixture 1, a first lateral moving mechanism 22 and an intermediate mixing bottle mounting base 26 provided on the first mounting base 21, a first front-back moving mechanism 23 provided on the first lateral moving mechanism 22, a first longitudinal moving module 24 provided on the first front-back moving mechanism 23, a clamping device mounting frame 25 provided on the first longitudinal moving module 24, a needle clamping mechanism 28 provided on the clamping device mounting frame 25, and an intermediate mixing bottle 27 provided in the intermediate mixing bottle mounting base 26.
[0039] The needle clamping mechanism 28 includes a rear support plate 281 fixed to a three-axis moving assembly, a clamping head assembly 283 disposed on the rear support plate 281, a front support plate 282 covering the rear support plate 281, and a connecting knob assembly 284 disposed on the rear support plate 281 and the front support plate 282. The clamping head assembly 283 presses against the front support plate 282. A first needle 285, a second needle 286, and a third needle 287 are disposed between the rear support plate 281 and the front support plate 282. The first needle 285 and the third needle 287 are used to inject the liquid before mixing, and the second needle 286 is used to draw out the mixed liquid. Here, the height of the second needle 286 is lower than that of the first needle 285 and the third needle 287 to facilitate reliable aspiration.
[0040] Here, liquid dispensing mechanism 3 and finished liquid filling mechanism 4 are used for liquid dispensing. Liquid dispensing mechanism 3 includes a second mounting base 31 fixed on mounting table 1, a rotary drive motor 32, a rotary clamping cylinder 35, and an injection pump 38 fixed on the second mounting base 31, a rotary drive shaft 33 connected to the rotary drive motor 32, a three-way valve mounting seat 36 disposed on the rotary clamping cylinder 35, and a three-way valve 34 installed in the three-way valve mounting seat 36 and positioned between the rotary drive shaft 33 and the three-way valve mounting seat 36. Finished liquid filling mechanism 4 includes a third mounting base 41 fixed on mounting table 1, a second longitudinal moving module 42 disposed on the third mounting base 41, a second connecting rod 43 disposed on the second longitudinal moving module 42, a needle mounting seat 44 installed at the front end of the second connecting rod 43, and a fourth needle 45 installed in the needle mounting seat 44. In this embodiment, the second needle 286, the syringe pump 38, and the fourth needle 45 are respectively connected to the three ports of the three-way valve 34 via tubing. When drawing in liquid, the second needle 286 is connected to the syringe pump 38. When dispensing liquid, the syringe pump 38 is connected to the fourth needle 45.
[0041] The liquid is transferred to the vial 100 using a vial transfer mechanism 7. This vial transfer mechanism 7 includes a third mounting base 71 fixed to the mounting fixture 1, a second lateral movement module 72 mounted on the third mounting base 71, a transverse stage 73 connected to and driven by the second lateral movement module 72, and a vial mounting cylinder 74 mounted on the transverse stage 73. The vial 100 is then placed inside the vial mounting cylinder 74.
[0042] In this embodiment, a vial cap loading and unloading mechanism 5 is used to load vials 200 and vials stoppers 300. This vial cap loading and unloading mechanism 5 includes a first mounting base 51 fixed on a mounting table 1, a first cylinder 52 and a second cylinder 53 mounted on the first mounting base 51, a first nozzle mounting base 54 connected to the first cylinder 52, a first nozzle 56 mounted on the first nozzle mounting base 54, a second nozzle mounting base 55 connected to the second cylinder 53, and a second nozzle 57 mounted on the second nozzle mounting base 55. The second nozzle 57 is used to pick up the vials stoppers 300 and place them on the vials 100, while the first nozzle 56 is used to pick up the vials 200 and place them on the vials 100.
[0043] In this embodiment, the vial capping mechanism 6 is used to cap the vial 200 and the vial stopper 300. The vial capping mechanism 6 includes a second mounting frame 61 fixed on the mounting fixture 1, a capping motor 62 mounted on the second mounting frame 61, and a capping head 63 located below the capping motor 62. Here, after the vial cap loading and unloading mechanism 5 inserts the vial 200 and the vial stopper 300 into the vial 100, the vial capping mechanism 6 is used to cap the vial.
[0044] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.
Claims
1. A device for dispensing radioactive medical liquids, comprising dispensing mixed liquids into vials (100) and capping them with a cap (200) and a stopper (300), characterized in that, The system includes an installation fixture (1), a mixing mechanism (2), a liquid dispensing mechanism (3), a finished liquid filling mechanism (4), a vial cap picking and placing mechanism (5), and a vial crimping mechanism (6) arranged sequentially on the installation fixture (1) along the liquid separation production line; a vial transfer mechanism (7) arranged on the installation fixture (1) and carrying the vial (100) for movement; and a system that connects the mixing mechanism (2), the liquid dispensing mechanism (3), the finished liquid filling mechanism (4), the vial cap picking and placing mechanism (5), and the vial crimping mechanism (6). An industrial control computer (8) is electrically connected to the capping mechanism (6) and the vial transfer mechanism (7); a mixing intermediate bottle (27) is provided in the mixing mechanism (2); the mixing intermediate bottle (27) contains the liquid to be separated after mixing; the liquid dispensing mechanism (3) extracts the liquid to be separated from the mixing intermediate bottle and injects it into the vial (100); the vial cap taking and putting mechanism (5) puts the cap (200) and cap stopper (300) into the vial (100) and uses the vial capping mechanism (6) to cap it.
2. The radioactive medical liquid dispensing device according to claim 1, characterized in that, The mixing mechanism (2) includes a first mounting base (21) mounted on the mounting fixture (1), a three-axis moving assembly and a mixing intermediate bottle mounting base (26) mounted on the first mounting base (21), and a needle clamping mechanism (28) mounted on the three-axis moving assembly; the mixing intermediate bottle (27) is disposed inside the mixing intermediate bottle mounting base (26); the needle clamping mechanism (28) is provided with a first needle (285), a second needle (286) and a third needle (287).
3. The radioactive medical liquid dispensing device according to claim 2, characterized in that, The needle clamping mechanism (28) includes a rear support plate (281) fixed on a three-axis moving assembly, a clamping head assembly (283) disposed on the rear support plate (281), a front support plate (282) covering the rear support plate (281), and a connecting knob assembly (284) disposed on the rear support plate (281) and the front support plate (282); the clamping head assembly (283) is pressed against the front support plate (282); the first needle (285), the second needle (286) and the third needle (287) are placed between the rear support plate (281) and the front support plate (282); the first needle (285), the second needle (286) and the third needle (287) are disposed on the upper part of the mixing intermediate bottle (27).
4. A radioactive medical liquid dispensing device according to claim 2, characterized in that, The three-axis moving assembly includes a first lateral moving mechanism (22) fixed on a first mounting base (21), a first front-back moving mechanism (23) disposed on the first lateral moving mechanism (22), a first longitudinal moving module (24) disposed on the first front-back moving mechanism (23), and a clamping device mounting bracket (25) disposed on the first longitudinal moving module (24); the needle clamping mechanism (28) is fixed on the clamping device mounting bracket (25).
5. A radioactive medical liquid dispensing device according to claim 2, characterized in that, The liquid dispensing mechanism (3) includes a second mounting base (31) fixed on the mounting fixture (1), a rotary drive motor (32), a rotary clamping cylinder (35) and an injection pump (38) fixed on the second mounting base (31), a rotary drive shaft (33) connected to the rotary drive motor (32), a three-way valve mounting base (36) set on the rotary clamping cylinder (35), and a three-way valve (34) installed in the three-way valve mounting base (36) and placed between the rotary drive shaft (33) and the three-way valve mounting base (36); the rotary drive motor (32) rotates the rotary drive shaft (33) and switches the flow of the three-way valve (34); the three-way valve (34) is connected to the second needle (286) and the injection pump (38) by a pipeline.
6. A radioactive medical liquid dispensing device according to claim 5, characterized in that, The finished drug liquid filling mechanism (4) includes a third mounting base (41) fixed on the mounting fixture (1), a second longitudinal moving module (42) set on the third mounting base (41), a second connecting rod (43) set on the second longitudinal moving module (42), a needle mounting base (44) installed at the front end of the second connecting rod (43), and a fourth needle (45) installed in the needle mounting base (44); the fourth needle (45) faces the vial (100) and is connected to the three-way valve (34) by a pipeline.
7. A radioactive medical liquid dispensing device according to claim 1, characterized in that, The vial cap picking and placing mechanism (5) includes a first mounting base (51) fixed on the mounting fixture (1), a first cylinder (52) and a second cylinder (53) mounted on the first mounting base (51), a first nozzle mounting base (54) connected to the first cylinder (52), a first nozzle (56) mounted on the first nozzle mounting base (54), a second nozzle mounting base (55) connected to the second cylinder (53), and a second nozzle (57) mounted on the second nozzle mounting base (55); the first nozzle (56) adsorbs the vial cap (200) and places it on the vial (100); the second nozzle (57) adsorbs the vial cap stopper (300) and places it on the vial (100).
8. A radioactive medical liquid dispensing device according to claim 7, characterized in that, The vial capping mechanism (6) includes a second mounting frame (61) fixed on the mounting fixture (1), a capping motor (62) mounted on the second mounting frame (61), and a capping head (63) located at the lower part of the capping motor (62); the capping head (63) caps the vial cap (200) and the vial stopper (300) onto the vial (100).
9. A radioactive medical liquid dispensing device according to claim 1, characterized in that, The vial transfer mechanism (7) includes a third mounting base (71) fixed on the mounting fixture (1), a second lateral movement module (72) disposed on the third mounting base (71), a transverse movement stage (73) connected to the second lateral movement module (72) and driven by the second lateral movement module (72) to move laterally, and a vial mounting cylinder (74) disposed on the transverse movement stage (73); the vial (100) is disposed inside the vial mounting cylinder (74).
10. A radioactive medical liquid dispensing device according to claim 1, characterized in that, The installation fixture (1) is provided with a rear protective cover (11) and a front protective cover (12); a sliding groove (121) is provided on the front protective cover (12); a capping protective cover (13) is provided on the front protective cover (12); the front end of the mixing mechanism (2) slides along the sliding groove (121); the vial capping mechanism (6) is placed inside the capping protective cover (13).