A rod-shaped nuclide supply device

Abstract

This utility model discloses a rod-shaped nuclide feeding device, comprising: an annular channel module, which includes a base and a shield detachably connected to the base; an annular channel is provided on the inner circumference of the base, and a vertical channel for particle loading and implantation is provided on the base at the starting point of the annular channel; a particle pulling module, including a mounting ring, a spring plate disposed on the outer circumference of the mounting ring, a particle pulling plate connected to the end of the spring plate, and an operating component connected to the mounting ring; the particle pulling plate has a first end face that blocks the rod-shaped nuclide within the annular channel and a second end face that facilitates the passage of the rod-shaped nuclide within the vertical channel; and a particle pushing ring module, including a particle pushing ring, a particle pushing ring block disposed on the particle pushing ring, and a spring that cooperates with the particle pushing ring and causes the particle pushing ring block to tend to approach the vertical channel. The device provided by this utility model can improve surgical efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a rod-shaped nuclide feeding device. Background Technology

[0002] Radioactive seed implantation for tumor treatment is a type of brachytherapy. It involves percutaneous puncture, where radioactive seeds are implanted into the tumor through a hollow channel in a needle. The seeds release radiation within the tumor, irradiating it and thus achieving a therapeutic effect. Currently, this technique is widely used clinically; however, the entire process is largely performed manually, leading to difficulties in controlling puncture precision, radiation exposure for medical staff, and a high degree of dependence on the surgeon's experience. Automated and intelligent auxiliary instruments, especially surgical robots, can effectively solve these problems. To address the issues of cumbersome operation, radiation hazards, and inaccurate seed placement during manual implantation, automating the implantation process is one of the best approaches. To achieve automated seed implantation, the problem of automatic seed supply needs to be solved. Clinically used radioactive seeds are 0.8mm in diameter and 4.5mm in length, sealed iodine-125 seeds. The average dosage per surgery is over 30 seeds, with a maximum of around 100 seeds in extreme cases. Currently, the particle magazines used in general surgical procedures are arranged in a straight line. However, due to the structure of the iodine-125 sealed seed source, which consists of a 0.05mm titanium shell encasing a silver wire that adsorbs iodine-125, it cannot withstand too much compressive force. The magazines typically contain 10 radioactive particles, which cannot meet the requirement of not changing the magazines during the surgical procedure, thus hindering the smooth control of the automated process.

[0003] CN216456567U proposes a radioactive particle storage module in which radioactive particles are arranged in an annular groove, which can greatly increase the number of radioactive particles. However, it does not explain how the particles are loaded or how they are kept stable in the annular groove, which is impossible to achieve in actual structures. At the same time, as the number of particles increases, the force exerted by the torsion spring on the last particle increases, which may cause particle deformation. The squeezing between particles may also cause the particles to exit unevenly. The last particle may fall out of the channel before being installed in the equipment.

[0004] CN205127112U proposes another type of spiral spring-type radioactive particle magazine. The radioactive particles are located within a spiral groove in the particle tray, with one end facing the particle outlet channel. The other end has a sliding pin connected to a slider that slides on a rotating guide plate. The rotating guide plate is fixed to a central shaft, and a groove in the central shaft connects to the inner ring of a coil spring. The bottom of the coil spring can rotate within a countersunk hole in the particle tray, and the outer ring of the coil spring is fixed to the groove in the particle tray. This design can accommodate more particles and push them into the channel. However, the detailed logic of particle loading and pushing is not clearly explained, which raises concerns about safety and reliability in clinical applications. Utility Model Content

[0005] The purpose of this invention is to provide a rod-shaped nuclide feeding device to improve working efficiency and safety performance.

[0006] Based on the above problems, the technical solution provided by this utility model is as follows:

[0007] A rod-shaped nuclide feeding device, comprising:

[0008] An annular channel module includes a base and a shielding cover detachably connected to the base. A receiving space is formed between the shielding cover and the base. An annular channel is provided on the inner circumference of the base. A vertical channel for particle loading and implantation is provided on the base at the starting point of the annular channel.

[0009] A particle-pulling module, rotatably mounted on the base and housed within the receiving space, is used to hold rod-shaped nuclides within the annular channel. It includes a mounting ring, a spring plate disposed on the outer periphery of the mounting ring, a particle-pulling plate connected to the end of the spring plate, and an operating element connected to the mounting ring. The particle-pulling plate has a first end face that blocks the rod-shaped nuclide within the annular channel and a second end face that facilitates the passage of the rod-shaped nuclide within the vertical channel. A receiving gap is formed between the second end face and the annular channel, and the receiving gap gradually narrows from the vertical channel towards the annular channel.

[0010] The particle pusher ring module, which is rotatably mounted on the base and housed within the receiving space, includes a particle pusher ring, a particle pusher ring block disposed on the particle pusher ring, and a spring that cooperates with the particle pusher ring and causes the particle pusher ring block to tend to approach the vertical channel.

[0011] In some embodiments, the outer periphery of the mounting ring is provided with a limiting groove, and the spring sheet is detachably fixed in the limiting groove via a connecting assembly;

[0012] The mounting ring has multiple mounting grooves arranged along the thickness direction, and the connecting assembly includes a fastening nut fixed in the mounting groove and a bolt that passes through the spring sheet and is connected to the fastening nut.

[0013] In some embodiments, the base is provided with a fixed shaft extending axially, the particle pulling module and the particle pushing ring module are rotatably mounted on the fixed shaft in sequence, and the shielding cover is fixed to the end of the fixed shaft;

[0014] The base has a positioning block protruding inward on the side near the vertical channel, the shield has a positioning groove that matches the positioning block, the base has a positioning element on the side away from the vertical channel, and the outer wall of the shield has a positioning recess that cooperates with the positioning element.

[0015] In some embodiments, the particle pusher ring module further includes a partition plate, on which the spring is supported, with its inner end fixed to the fixed shaft and its outer end fixed to the particle pusher ring.

[0016] In some embodiments, the end of the fixed shaft is provided with a first groove that matches the inner end of the spring, and the inner wall of the particle pusher ring is provided with a second groove that matches the outer end of the spring.

[0017] In some embodiments, the particle pusher ring block has an arc-shaped groove at one end near the vertical channel.

[0018] In some embodiments, a docking module is also included, which is detachably connected to the annular channel module for implanting rod-shaped nuclides, including a docking seat and a hook assembly disposed on the docking seat for connecting a particle implantation tool.

[0019] In some embodiments, the hook assembly includes two hooks arranged symmetrically, a hook pin fixed to the docking seat to support the hooks, and a torsion spring disposed between the hooks and the docking seat, the torsion spring being sleeved on the hook pin and having its two ends fixed to the hooks and the docking seat respectively.

[0020] In some embodiments, the docking seat includes a seat body, a push channel disposed in the seat body, a first connector disposed at one end of the seat body, a second connector disposed at the other end of the seat body, a docking sleeve detachably connected to the first connector, and a puncture needle connector assembly detachably connected to the second connector. A space is provided between the push channel and the seat body for the vertical channel to be inserted. The first connector, the push channel, the vertical channel and the second connector are sequentially connected.

[0021] Compared with the prior art, the advantages of this utility model are:

[0022] The annular channel module can hold a larger number of rod-shaped nuclides. The combination of the particle pulling module and the particle pushing ring module keeps the rod-shaped nuclides within the annular channel, facilitating the loading and implantation of rod-shaped nuclides and improving the efficiency and safety of the surgery. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an embodiment of the rod-shaped nuclide feeding device of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the annular channel module in an embodiment of the present utility model;

[0026] Figure 3 This is one of the structural schematic diagrams of the base in the embodiments of this utility model;

[0027] Figure 4 This is a second schematic diagram of the base structure in an embodiment of this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of a section at point I;

[0029] Figure 6 This is a schematic diagram of the structure of the particle pulling module in an embodiment of this utility model;

[0030] Figure 7 This is a schematic diagram of the particle pushing ring module in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the docking seat module in an embodiment of the present invention;

[0032] Figure 9 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0033] Figure 10 This is a schematic diagram of the structure of the particle implantation tool and the docking seat in an embodiment of this utility model;

[0034] Figure 11 for Figure 10 Schematic diagram of the AA section;

[0035] Figure 12 This is a schematic diagram of the structure in the initial state during loading according to an embodiment of the present invention;

[0036] Figure 13 This is a schematic diagram showing the state of the first particle entering the vertical channel in an embodiment of this utility model;

[0037] Figure 14 This is a schematic diagram showing the state of the particle sheet passing over the first particle in an embodiment of this utility model;

[0038] Figure 15 This is a schematic diagram illustrating the state in which the particle-pulling sheet pushes the first particle into the annular channel in an embodiment of the present invention;

[0039] Figure 16 This is a schematic diagram showing the state of the annular channel filled with rod-shaped nuclides in an embodiment of this utility model;

[0040] Figure 17 This is a schematic diagram showing the state of the particle sheet being pulled to create a vertical channel during particle implantation in an embodiment of this utility model.

[0041] in:

[0042] 100. Annular channel module; 101. Base; 1011. Fixed shaft; 1011a. First slot; 1012. Positioning step; 1013. Vertical channel; 1014. Annular channel; 1015. Positioning part; 1016. Operating through slot; 1017. Boss; 1018. Positioning hole; 1019. Positioning block; 102. Shielding cover; 1021. Positioning recess; 1022. Positioning groove; 103. Positioning component;

[0043] 200. Particle pulling module; 201. Mounting ring; 2011. Limiting groove; 202. Spring plate; 203. Particle pulling plate; 2031. First end face; 2032. Second end face; 204. Bolt; 205. Fastening nut; 206. Retaining ring; 207. Operating bearing; 208. Operating component;

[0044] 300. Particle pusher ring module; 301. Particle pusher ring; 3011. Particle pusher ring block; 3012. Second slot; 302. Clock spring; 3021. Inner end; 3022. Outer end; 303. Partition plate;

[0045] 400. Docking seat module; 401. Docking seat; 4011. Seat body; 4012. Push channel; 4013. First connector; 4014. Second connector; 402. Docking sleeve; 403. Push needle connector; 404. Spring; 405. Puncture needle connector; 406. Hook; 407. Hook pin; 408. Torsion spring; 409. Knob plunger;

[0046] 500. Bearing assembly;

[0047] 600, spacer ring;

[0048] 700. Rod-shaped nuclides;

[0049] 800. Particle implantation tool. Detailed Implementation

[0050] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0051] like Figure 1 and Figure 9 As shown in the figure, an embodiment of the present invention is provided, which provides a rod-shaped nuclide feeding device, including an annular channel module 100, a particle pulling module 200 and a particle pushing ring module 300.

[0052] like Figure 2 As shown, the annular channel module 100 includes a base 101 and a shield 102 detachably connected to the base 101. A receiving space is formed between the shield 102 and the base 101. An annular channel 1014 is provided on the inner periphery of the base 101. A vertical channel 1013 for particle loading and insertion is provided on the base 101 at the starting point of the annular channel 1014. The vertical channel 1013 extends along the height direction of the base 101 and communicates with the annular channel 1014. Rod-shaped nuclides 500 are loaded into the annular channel 1014 through the vertical channel 1013 or rod-shaped nuclides 500 in the annular channel 1014 are implanted into the human body through the vertical channel 1013.

[0053] like Figures 3 to 5 As shown, the base 101 has a recessed disc structure. A boss 1017 is provided around the inner circumference of the base 101. The boss 1017 forms an annular channel 1014 with the side wall of the base 101 and the axial end face of the particle pusher module 300. A fixed shaft 1011 extending axially is provided in the middle of the base 101. The particle pulling module 200 and the particle pusher module 300 are rotatably mounted on the fixed shaft 1011. The shield 102 is fixed to the end of the fixed shaft 1011. A positioning step 1012 is provided at the lower part of the fixed shaft 1011 as an axial reference for the installation of the particle pulling module 200. The particle pulling module 200 and the particle pusher module 300 are supported on the fixed shaft 1011 by bearing assemblies 500. A spacer 600 is provided between adjacent bearing assemblies 500 to adjust the height and parallelism of the particle pulling module 200 and the particle pusher module 300.

[0054] To facilitate the installation and positioning of the shielding cover 102 and the base 101, a positioning block 1019 protruding inward is provided on the side of the base 101 near the vertical channel 1013. A positioning groove 1022 matching the positioning block 1019 is provided on the shielding cover 102. A positioning element 103 is provided on the side of the base 101 away from the vertical channel 1013. A positioning recess 1021 cooperating with the positioning element 103 is provided on the outer wall of the shielding cover 102. Preferably, the positioning element 103 is a ball-head plunger. A positioning part 1015 extending along the height direction is provided on the base 101, and the positioning element 103 is installed in the positioning part 1015. The positioning of the shielding cover 102 and the base 101 is achieved through the cooperation of the positioning block 1019 and the positioning groove 1022, and the cooperation of the positioning element 103 and the positioning recess 1021. The shielding cover 102 is then fixed to the end of the fixed shaft 1011 with screws, thus completing the installation of the shielding cover 102 and the base 101. Meanwhile, the starting point and the ending point of the annular channel 1014 are located on both sides of the positioning block 1019.

[0055] The particle-pulling module 200, rotatably mounted on the base 101 and housed within the receiving space, is used to hold the rod-shaped nuclide 500 within the annular channel 1014, such as... Figure 6 As shown, the device includes a mounting ring 201, a spring sheet 202 disposed on the outer periphery of the mounting ring 201, a pull-particle sheet 203 connected to the end of the spring sheet 202, and an operating member 208 connected to the mounting ring 201. The pull-particle sheet 203 has a first end face 2031 that blocks the rod-shaped nuclide 500 within the annular channel 1014 and a second end face 2032 that facilitates the passage of the rod-shaped nuclide 500 within the vertical channel 1013. The second end face 2032 and the first end face 2031 are connected to form an acute angle structure, and a receiving gap is formed between the second end face 2032 and the annular channel 1014. This receiving gap gradually narrows from the vertical channel 1013 towards the annular channel 1014.

[0056] To facilitate the installation of the spring sheet 202, a limiting groove 2011 is provided on the outer periphery of the mounting ring 201. The spring sheet 202 is detachably fixed in the limiting groove 2011 via a connecting assembly. Specifically, the mounting ring 201 is provided with a plurality of mounting grooves arranged along the thickness direction. The connecting assembly includes a fastening nut 205 fixed in the mounting groove and a bolt 204 that passes through the spring sheet 202 and is connected to the fastening nut 205.

[0057] The operating member 208 is supported by the operating bearing 207 and extends along the thickness direction of the mounting ring 201. A retaining ring 206 is installed on the operating member 208 between the operating bearing 207 and the mounting ring 201. At the same time, the base 101 is provided with an operating through groove 1016 for the operating member 208 to pass through. Preferably, the operating through groove 1016 is a waist-shaped hole.

[0058] The particle pusher ring module 300 is rotatably mounted on the base 101 and housed within the receiving space, such as... Figure 7 As shown, the device includes a particle pusher ring 301, a particle pusher ring block 3011 disposed on the particle pusher ring 301, and a spring 302 that cooperates with the particle pusher ring 301 and causes the particle pusher ring block 3011 to tend to approach the vertical channel 1013. Preferably, the particle pusher ring block 3011 has an arc-shaped groove at one end near the vertical channel 1013 to facilitate abutment and cooperation with the rod-shaped nuclide 500.

[0059] To facilitate support of the spring 302, the particle pusher ring module 300 also includes a partition 303 disposed on the fixed shaft 1011. The spring 302 is supported on the partition 303. The inner end 3021 of the spring 302 is fixed on the fixed shaft 1011 and the outer end is fixed on the particle pusher ring 301. In this way, the spring 302 causes the particle pusher ring block 3011 to tend to approach the vertical channel 1013, so as to push the rod-shaped nuclides 500 in the annular channel 1014 into the vertical channel 1013 one by one.

[0060] Specifically, a first groove 1011a matching the inner end 3021 of the spring 302 is provided at the end of the fixed shaft 1011, and a second groove 3012 matching the outer end 3022 of the spring 302 is provided on the inner wall of the particle push ring 301.

[0061] To facilitate the installation of particle implantation tools, the rod-shaped nuclide feeding device also includes a docking module 400, which is detachably connected to the annular channel module 100 for implanting rod-shaped nuclides, such as... Figure 8 As shown, the device includes a docking seat 401 and a hook assembly disposed on the docking seat 401 for connecting a particle implantation tool. The hook assembly includes two symmetrically arranged hooks 406, a hook pin 407 fixed to the docking seat 401 to support the hooks 406, and a torsion spring 408 disposed between the hooks 406 and the docking seat 401. The torsion spring 408 is sleeved on the hook pin 407 and its two ends are respectively fixed to the hooks 406 and the docking seat 401. The torsion spring 408 causes the hooks 406 to tend to move closer to the docking seat 401. When the two hooks 406 are opened, as shown... Figure 10 and Figure 11 As shown, the particle implantation tool can be secured to two hooks 406. To improve the stability of the structure, the hooks 406 are provided with hook grooves that match the particle implantation tool.

[0062] The docking seat 401 includes a U-shaped seat body 4011, a push channel 4012 disposed within the seat body 4011, a first connector 4013 disposed at one end of the seat body 4011, a second connector 4014 disposed at the other end of the seat body 4011, a docking sleeve 402 detachably connected to the first connector 4013, and a puncture needle connector assembly detachably connected to the second connector 4014. A space for inserting a vertical channel 1013 is provided between the push channel 4012 and the seat body 4011. The base 101 is positioned between the base body 4011 and the knob plunger 409. A positioning hole 1018 that mates with the knob plunger 409 is provided at the bottom of the base 101.

[0063] The puncture needle connector assembly includes a push needle connector 403 connected to the second connector 4014, a spring 404 mounted on the end of the push needle connector 403 opposite to the docking seat 401, and a puncture needle connector 405 mounted on the push needle connector 403 and covering the outer periphery of the spring 404. The first connector 4013, the push channel 4012, the vertical channel 1013, and the second connector 4014 are sequentially connected. Thus, the particle push needle can enter the push channel 4012 through the docking sleeve 402, and then push the rod-shaped nuclide 500 in the vertical channel 1013 to the puncture needle connector assembly through the second connector 4014, and finally be implanted into the human body through the puncture needle. The puncture needle is mounted on the puncture needle connector 405 and abuts against the spring 404, which can ensure the stability of the puncture needle structure.

[0064] The feeding method of the above-mentioned rod-shaped nuclide feeding device includes the following steps:

[0065] S1, In the initial state, such as Figure 11 As shown, the second end face 2032 of the particle-pulling sheet 203 is close to the particle pusher ring block 3011 and does not obstruct the vertical channel 1013, while the first end face 2031 of the particle-pulling sheet 203 abuts against the particle pusher ring block 3011.

[0066] S2, such as Figure 13 As shown, the first rod-shaped nuclide 500 is placed into the beginning of the annular channel 1014 through the vertical channel 1013. The operating component 108 drives the particle puller 203 to rotate along the base 101, as shown. Figure 14 As shown, the second end face 2032 of the particle-pulling sheet 203 extends past the first rod-shaped nuclide 500 to create an annular channel 1014, and the first rod-shaped nuclide 500 contacts the particle-pushing ring block 3011, as shown. Figure 15 As shown, operating the actuator 208 again causes the first end face 2031 of the particle sheet 203 to push the first rod-shaped nuclide 500 into the annular channel 1014, thus clearing the vertical channel 1013. This process is repeated until the annular channel 1014 is filled with rod-shaped nuclides 500. At this point, as... Figure 16As shown, the first end face 2031 of the particle puller 203 and the particle pusher block 3011 hold all the rod-shaped nuclides 500 within the annular channel 1014;

[0067] S3, such as Figure 17 As shown, the operating component 208 causes the second end face 2032 of the particle-pulling sheet 203 to pass over the vertical channel 1013. Under the action of the spring 302, the rod-shaped nuclide 500 that is in contact with the first end face 2031 of the particle-pulling sheet 230 moves to the vertical channel 1013. At this time, the rod-shaped nuclide is implanted using an implantation tool. After the rod-shaped nuclide 500 in the vertical channel 1013 is pushed, under the action of the spring 302, the empty vertical channel 1013 is occupied by the subsequent rod-shaped nuclide 500 until the implantation of all rod-shaped nuclide 500 is completed.

[0068] In summary, this rod-shaped nuclide feeding device has a compact structure, can accommodate more particles, and facilitates particle loading and implantation, thereby improving the efficiency and safety of the surgery.

[0069] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rod-shaped nuclide supply device characterized by comprising: include: An annular channel module includes a base and a shielding cover detachably connected to the base. A receiving space is formed between the shielding cover and the base. An annular channel is provided on the inner circumference of the base. A vertical channel for particle loading and implantation is provided on the base at the starting point of the annular channel. A particle-pulling module, rotatably mounted on the base and housed within the receiving space, is used to hold rod-shaped nuclides within the annular channel. It includes a mounting ring, a spring plate disposed on the outer periphery of the mounting ring, a particle-pulling plate connected to the end of the spring plate, and an operating element connected to the mounting ring. The particle-pulling plate has a first end face that blocks the rod-shaped nuclide within the annular channel and a second end face that facilitates the passage of the rod-shaped nuclide within the vertical channel. A receiving gap is formed between the second end face and the annular channel, and the receiving gap gradually narrows from the vertical channel towards the annular channel. The particle pusher ring module, which is rotatably mounted on the base and housed within the receiving space, includes a particle pusher ring, a particle pusher ring block disposed on the particle pusher ring, and a spring that cooperates with the particle pusher ring and causes the particle pusher ring block to tend to approach the vertical channel.

2. The rod-shaped nuclide supply device according to claim 1, characterized by: The outer periphery of the mounting ring is provided with a limiting groove, and the spring sheet is detachably fixed in the limiting groove via a connecting assembly; The mounting ring has multiple mounting grooves arranged along the thickness direction, and the connecting assembly includes a fastening nut fixed in the mounting groove and a bolt that passes through the spring sheet and is connected to the fastening nut.

3. The rod-shaped nuclide supply device according to claim 1, characterized by: The base is provided with a fixed shaft extending along the axial direction. The particle pulling module and the particle pushing ring module are rotatably mounted on the fixed shaft in sequence, and the shielding cover is fixed to the end of the fixed shaft. The base has a positioning block protruding inward on the side near the vertical channel, the shield has a positioning groove that matches the positioning block, the base has a positioning element on the side away from the vertical channel, and the outer wall of the shield has a positioning recess that cooperates with the positioning element.

4. The rod-shaped nuclide supply device according to claim 3, characterized by: The particle pusher ring module also includes a partition plate, the spring is supported on the partition plate, the inner end of the spring is fixed on the fixed shaft and the outer end is fixed on the particle pusher ring.

5. The rod-shaped nuclide supply device according to claim 4, characterized by: The fixed shaft has a first groove at its end that matches the inner end of the spring, and the particle pusher ring has a second groove on its inner wall that matches the outer end of the spring.

6. The rod-shaped nuclide supply device according to claim 1, characterized by: The particle pusher ring block has an arc-shaped groove at one end near the vertical channel.

7. The rod-shaped nuclide supply device according to claim 1, characterized by: It also includes a docking station module, which is detachably connected to the annular channel module for implanting rod-shaped nuclides, including a docking station and a hook assembly disposed on the docking station for connecting a particle implantation tool.

8. The rod-shaped nuclide supply device according to claim 7, characterized by: The hook assembly includes two hooks arranged symmetrically, a hook pin fixed on the docking seat to support the hooks, and a torsion spring disposed between the hooks and the docking seat. The torsion spring is sleeved on the hook pin and its two ends are respectively fixed on the hooks and the docking seat.

9. The rod-shaped nuclide supply device according to claim 8, characterized by: The docking seat comprises a seat body, a pushing channel arranged in the seat body, a first joint arranged at one end of the seat body, a second joint arranged at the other end of the seat body, a docking sleeve detachably connected with the first joint, and a puncture needle joint assembly detachably connected with the second joint.

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