Radioisotope generator

Abstract

A radioisotope generator comprises a support and a puncture needle assembly, a connector is arranged on the support, an inverted-cone-shaped first connecting hole is formed in the upper end of the connector, an inverted-cone-shaped first inserting part is arranged at the lower end of the puncture needle assembly, and a first buckle is arranged on the periphery of the first inserting part. The depth of the first connecting hole is larger than the length of the first inserting part, the upper end of the connecting joint is clamped between the first buckle and the first inserting part, and the first inserting part is inserted into the first connecting hole. Compared with an existing connecting mode of the heparin cap and the needle tube, range positioning is improved into accurate positioning, positioning during connection is more accurate, automatic production is facilitated, the inverted-cone-shaped first connecting hole is more beneficial to flowing of liquid medicine, residues of the liquid medicine are reduced, meanwhile, the two inverted-cone-shaped faces are more easily attached to each other tightly, and the service life of the needle tube is prolonged. The sealing performance is also greatly improved; and the support and the puncture needle assembly which are split are convenient to replace independently, so that the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of food and drug packaging machinery, in particular to a radioactive isotope generator. Background Art

[0002] Existing generators generally use heparin caps to connect with syringes. This connection method has a leakage risk when used repeatedly, and it is difficult to orient when the syringe is connected to the heparin cap, resulting in difficulties in automated production. In addition, existing generators generally adopt an integral design, resulting in a high manufacturing cost, and it is difficult to perform damage replacement operations when upgrading, replacing or repairing parts. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a radioactive isotope generator with a simple structure, which is beneficial to reducing the positioning difficulty during connection and improving the sealing performance.

[0004] To solve the above technical problem, the utility model adopts the following technical solutions:

[0005] A radioactive isotope generator, comprising a bracket and a puncture needle assembly. A connection joint is provided on the bracket. An inverted conical first connection hole is provided inside the upper end of the connection joint. The lower end of the puncture needle assembly is provided with an inverted conical first insertion part and a first buckle is provided on the outer periphery of the first insertion part. The depth of the first connection hole is greater than the length of the first insertion part. The upper end of the connection joint is clamped between the first buckle and the first insertion part, and the first insertion part is inserted into the first connection hole.

[0006] As a further improvement of the above technical solution: a first groove is provided on the inner wall of the first buckle, and a first convex part is provided on the outer wall of the upper end of the connection joint. The first convex part is clamped in the first groove.

[0007] As a further improvement of the above technical solution: a sealing member is provided between the upper end of the connection joint and the puncture needle assembly.

[0008] As a further improvement of the above technical solution: the sealing member is a silica gel gasket.

[0009] As a further improvement of the above technical solution: a second convex part is provided on the outer wall of the connection joint, and a lock is provided on the bracket for pressing the second convex part.

[0010] As a further improvement of the above technical solution: It further includes a connecting hose. The lower end of the connecting joint penetrates through the bracket. A conical second connecting hole is provided inside the lower end of the connecting joint. One end of the connecting hose is provided with a conical second insertion part and a second buckle is provided on the outer periphery of the second insertion part. The lower end of the connecting joint is clamped between the second buckle and the second insertion part, and the second insertion part is inserted into the second connecting hole.

[0011] As a further improvement of the above technical solution: A plurality of second grooves are provided on the outer wall of the lower end of the connecting joint, and a plurality of third protrusions are provided on the inner wall of the second buckle. The plurality of third protrusions are clamped in the plurality of second grooves in a one-to-one correspondence.

[0012] As a further improvement of the above technical solution: A first concave part is provided on the bracket and a second concave part is provided below the first concave part. A shielding block is provided in the first concave part, and a generating column is provided in the second concave part.

[0013] As a further improvement of the above technical solution: A gland is provided above the bracket, and a pressing part for pressing the shielding block is provided on the gland.

[0014] As a further improvement of the above technical solution: It further includes a protective tank. The bracket and the gland are arranged in the protective tank. A protective cover is provided on the upper part of the protective tank, and positioning grooves are provided on both sides of the lower part of the protective tank;

[0015] And / or, positioning grooves are provided at the bottom of the protective tank;

[0016] And / or, positioning pin holes are provided at the bottom of the protective tank.

[0017] Compared with the prior art, the advantages of the present invention are as follows: In the radioactive isotope generator disclosed by the present invention, the puncture needle assembly and the connecting joint on the bracket are docked through the inverted conical first insertion part and the first connecting hole, and are clamped by the first buckle. At the same time, the depth of the first connecting hole is greater than the length of the first insertion part. Compared with the existing connection method between the heparin cap and the syringe, the positioning is improved from range positioning to precise positioning, the positioning during connection is more accurate, which is beneficial to automated production, and the inverted conical first connecting hole is more conducive to the flow of the liquid medicine, thereby reducing the residue of the liquid medicine. At the same time, it is easier for the two inverted conical surfaces to fit tightly, so that the sealing performance is also greatly improved; the split bracket and the puncture needle assembly are also convenient for separate replacement, reducing costs, and the structure is reasonable and effective.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0019] Figure 1It is a schematic diagram of the three-dimensional structure outside the radioactive isotope generator of the present utility model.

[0020] Figure 2 It is a schematic diagram of the main sectional structure of the radioactive isotope generator of the present utility model.

[0021] Figure 3 It is Figure 2 A schematic diagram of the structure after hiding the protective tank and the protective cover.

[0022] Figure 4 It is a schematic diagram of the side view structure of the bracket and the gland in the present utility model.

[0023] Figure 5 It is Figure 3 A partial enlarged view of

[0024] Figure 6 It is a schematic diagram of the structure in the disassembled state of the puncture needle assembly, the connection joint and the connection hose in the present utility model.

[0025] Each label in the figure represents:

[0026] 1. Bracket; 11. Lock; 12. First concave part; 13. Second concave part; 14. Gland; 15. Pressing part; 16. Fourth convex part; 2. Puncture needle assembly; 21. First insertion part; 22. First buckle; 23. Puncture needle; 3. Connection joint; 31. First connection hole; 32. First convex part; 33. Second convex part; 34. Second connection hole; 4. Sealing member; 5. Connection hose; 51. Second insertion part; 52. Second buckle; 53. Third convex part; 6. Shielding block; 7. Generation column; 71. Protective tank; 72. Protective cover; 73. Positioning groove; 74. Positioning pin hole; 8. Medicine bottle. Specific embodiments

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0029] In the present utility model, unless otherwise clearly specified and defined, terms such as "assembled", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The present utility model will be further described in detail below with reference to the accompanying drawings of the specification and specific embodiments.

[0031] Figures 1 to 6 An embodiment of the radioactive isotope generator of the present utility model is shown. The radioactive isotope generator of this embodiment includes a bracket 1 and a puncture needle assembly 2. A connection joint 3 is provided on the bracket 1. Inside the upper end of the connection joint 3, there is an inverted conical first connection hole 31. At the lower end of the puncture needle assembly 2, there is an inverted conical first insertion part 21, and a first buckle 22 is provided on the outer periphery of the first insertion part 21. The depth of the first connection hole 31 is greater than the length of the first insertion part 21 (specifically refer to Figure 5 , after the first insertion part 21 is inserted into the first connection hole 31, there is still a margin at the lower part of the first connection hole 31). The upper end of the connection joint 3 is clamped between the first buckle 22 and the first insertion part 21, and the first insertion part 21 is inserted into the first connection hole 31.

[0032] In the radioactive isotope generator of this embodiment, the puncture needle assembly 2 and the connection joint 3 on the bracket 1 are docked through the inverted conical first insertion part 21 and the first connection hole 31, and are clamped by the first buckle 22. At the same time, the depth of the first connection hole 31 is greater than the length of the first insertion part 21. Compared with the existing connection method between the heparin cap and the syringe needle, the positioning is improved from range positioning to precise positioning, and the positioning during connection is more accurate, which is beneficial to automated production. Moreover, the inverted conical first connection hole 31 is more conducive to the flow of the liquid medicine, thereby reducing the residue of the liquid medicine. At the same time, it is easier for the two inverted conical surfaces to fit tightly, so that the sealing performance is also greatly improved; the split bracket 1 and the puncture needle assembly 2 are also convenient for separate replacement, reducing costs, and the structure is reasonable and effective.

[0033] Specifically refer to Figure 5and Figure 6 , further, in this embodiment, a first groove is provided on the inner wall of the first buckle 22, and a first convex portion 32 is provided on the outer wall of the upper end of the connection joint 3. The first convex portion 32 is clamped in the first groove. Through the cooperation of the first groove and the first convex portion 32, a reliable connection between the connection joint 3 and the puncture needle assembly 2 can be achieved, preventing disconnection, and the structure is simple and effective.

[0034] , further, in this embodiment, a seal 4 is provided between the upper end of the connection joint 3 and the puncture needle assembly 2. After the connection joint 3 and the puncture needle assembly 2 are docked, the seal 4 at the end is pressed and deformed to fill the gap at the docking portion, further improving the sealing performance between the connection joint 3 and the puncture needle assembly 2.

[0035] As a preferred embodiment, the seal 4 is a silicone gasket, which has good sealing performance and long service life. Of course, in other embodiments, the seal 4 can also be in the form of a sealing ring, a sealing strip, etc., and the material can also be adjusted.

[0036] , further, in this embodiment, a second convex portion 33 is provided on the outer wall of the connection joint 3, and a lock 11 for pressing the second convex portion 33 is provided on the bracket 1. The lock 11 can reliably lock the connection joint 3 on the bracket 1 by means of the second convex portion 33, restricting the upward freedom of the connection joint 3, and the second convex portion 33 also restricts the downward freedom of the connection joint 3, while the assembly is convenient.

[0037] Specifically refer to Figure 5 and Figure 6 , further, in this embodiment, the radioactive isotope generator further includes a connecting hose 5. The connecting hose 5 can be, for example, a silicone tube, and is used to connect the connection joint 3 and the generating column 7. Specifically, as shown in Figure 3 , the left and right connecting hoses 5 respectively connect the upper and lower ends of the generating column 7. The lower end of the connection joint 3 penetrates through the bracket 1. A tapered second connection hole 34 is provided inside the lower end of the connection joint 3. One end of the connecting hose 5 is provided with a tapered second insertion portion 51 and a second buckle 52 is provided on the outer periphery of the second insertion portion 51. The lower end of the connection joint 3 is clamped between the second buckle 52 and the second insertion portion 51, and the second insertion portion 51 is inserted into the second connection hole 34. The connection between the connecting hose 5 and the connection joint 3 on the bracket 1 is docked through the tapered second insertion portion 51 and the second connection hole 34, and is clamped by the second buckle 52. Compared with the existing connection method between the heparin cap and the needle tube, the positioning is improved from range positioning to precise positioning, the positioning during connection is more accurate, which is beneficial to automated production, and at the same time, it is easier for the two inverted tapered surfaces to fit tightly, so that the sealing performance is also greatly improved.

[0038] Further, in this embodiment, a plurality of second grooves are provided on the outer wall of the lower end of the connecting joint 3, and a plurality of third protrusions 53 are provided on the inner wall of the second buckle 52. The plurality of third protrusions 53 are respectively clamped in the plurality of second grooves. Through the one-to-one cooperation of the plurality of second grooves and the plurality of third protrusions 53, a reliable connection between the connecting joint 3 and the connecting hose 5 can be achieved, preventing disconnection, and at the same time ensuring the sealing performance of the connection part. The structure is simple and effective.

[0039] Further, in this embodiment, a first concave portion 12 is provided on the bracket 1, and a second concave portion 13 is provided below the first concave portion 12. A shielding block 6 (such as a lead block) is provided in the first concave portion 12, and a generating column 7 is provided in the second concave portion 13. The first concave portion 12 and the second concave portion 13 form a two-stage U-shaped bracket 1, which is beneficial to filling the shielding block 6 and the generating column 7 in the middle, and will not cause interference and jamming during the filling process, and is beneficial to the shielding of radiation by the shielding block 6. Preferably, the bracket 1 is a plastic bracket, which solves the problem that the connecting hose 5 is not easy to fix and will shake during the automated production process.

[0040] Furthermore, in this embodiment, a gland 14 is provided above the bracket 1, and a pressing portion 15 for pressing the shielding block 6 is provided on the gland 14. When the installation of the gland 14 is completed, the positioning installation of the shielding block 6 is also completed. The structure is reasonable and effective.

[0041] Specifically refer to Figure 1 and Figure 2 , further, in this embodiment, the radioactive isotope generator further includes a protective tank 71. The bracket 1 and the gland 14 are arranged in the protective tank 71, and a protective cover 72 is provided on the upper part of the protective tank 71. The protective tank 71 and the protective cover 72 cooperate to form a closed space, and components such as the bracket 1, the gland 14, the puncture needle assembly 2, and the generating column 7 are sealed in this closed space.

[0042] Among them, positioning grooves 73 can be provided on both sides of the lower part of the protective tank 71;

[0043] and / or, positioning grooves 73 are provided at the bottom of the protective tank 71;

[0044] and / or, positioning pin holes 74 are provided at the bottom of the protective tank 71. When the positioning pin is inserted into the positioning pin holes 74, the positioning is completed. A variety of different forms of positioning methods can meet the needs of different users, and are also beneficial to automated production under different conditions. The structure is simple and reliable.

[0045] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model by using the technical content disclosed above without departing from the scope of the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A radioisotope generator, comprising a support (1) and a puncture needle assembly (2), characterized in that: The bracket (1) is provided with a connecting joint (3), the upper end of the connecting joint (3) is provided with an inverted cone-shaped first connecting hole (31), the lower end of the puncture needle assembly (2) is provided with an inverted cone-shaped first plug-in portion (21) and a first buckle (22) is provided on the outer periphery of the first plug-in portion (21), the depth of the first connecting hole (31) is greater than the length of the first plug-in portion (21), the upper end of the connecting joint (3) is clamped between the first buckle (22) and the first plug-in portion (21), and the first plug-in portion (21) is inserted into the first connecting hole (31).

2. The radioisotope generator according to claim 1, characterized in that: The inner wall of the first buckle (22) is provided with a first groove, and the outer wall of the upper end of the connecting joint (3) is provided with a first convex portion (32), and the first convex portion (32) is clamped in the first groove.

3. The radioisotope generator according to claim 1, characterized in that: A sealing member (4) is provided between the upper end of the connecting joint (3) and the puncture needle assembly (2).

4. The radioisotope generator according to claim 3, characterized in that: The sealing member (4) is a silicone sealing pad.

5. The radioisotope generator according to claim 1, characterized in that: A second convex portion (33) is provided on the outer wall of the connecting joint (3), and a lock buckle (11) for pressing the second convex portion (33) is provided on the bracket (1).

6. The radioisotope generator according to claim 1, characterized in that: It also comprises a connecting hose (5), the lower end of the connecting joint (3) passes through the bracket (1), a conical second connecting hole (34) is provided inside the lower end of the connecting joint (3), one end of the connecting hose (5) is provided with a conical second plug-in portion (51), and a second buckle (52) is provided on the outer periphery of the second plug-in portion (51), the lower end of the connecting joint (3) is clamped between the second buckle (52) and the second plug-in portion (51), and the second plug-in portion (51) is inserted into the second connecting hole (34).

7. The radioisotope generator according to claim 6, characterized in that: The outer wall of the lower end of the connecting joint (3) is provided with a plurality of second grooves, and the inner wall of the second buckle (52) is provided with a plurality of third protrusions (53), and the plurality of third protrusions (53) are clamped in the plurality of second grooves in a one-to-one correspondence.

8. The radioisotope generator according to any one of claims 1 to 7, characterized in that: The bracket (1) is provided with a first recessed portion (12) and a second recessed portion (13) is provided below the first recessed portion (12); a shielding block (6) is provided in the first recessed portion (12) and a generating column (7) is provided in the second recessed portion (13).

9. The radioisotope generator according to claim 8, characterized in that: A pressure cover (14) is provided above the bracket (1), and a pressing portion (15) for pressing the shielding block (6) is provided on the pressure cover (14).

10. The radioisotope generator according to claim 9, characterized in that: It also comprises a protective tank (71), the bracket (1) and the pressure cover (14) are arranged in the protective tank (71), a protective cover (72) is arranged on the upper part of the protective tank (71), and positioning grooves (73) are arranged on both sides of the lower part of the protective tank (71); And / or, a positioning groove (73) is provided at the bottom of the protective tank (71); And / or, a positioning pin hole (74) is provided at the bottom of the protection tank (71).

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