A radioactive seed cartridge loading device and method of use thereof

Abstract

The application discloses a radioactive particle cartridge filling device, which comprises four modules, namely, a positioning module, a grabbing module, a filling module and a driving module. The specific structure of the positioning module comprises a fixed base, an XYZR axis displacement platform, a cylinder support frame and a sliding block connecting piece. The specific structure of the grabbing module comprises a particle gun. The specific structure of the filling module comprises a particle cartridge, a particle cartridge filling frame and a connecting shaft block. The specific structure of the driving module comprises a micro cylinder and a screw sliding table. The radioactive particle cartridge filling device can realize accurate grabbing and precise control of particles, stable filling, omission of the particle bin installation step, improvement of the filling efficiency, safety guarantee and automatic operation.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a radioactive particle cartridge loading device and its usage method. Background Technology

[0002] A radioactive particle implantation gun is a surgical tool used to treat cancer. Its principle is to precisely implant radioactive particles into the cancerous site, causing the particles to release radioactive energy, killing tumor cells and reducing the spread of cancer. However, current commercially available automated radioactive particle loading devices suffer from low loading efficiency and are prone to particle jamming, leading to particle and instrument damage and radiation contamination. Therefore, there is a need to develop a more efficient and safer radioactive particle grasping and loading device. Summary of the Invention

[0003] To address the aforementioned problems, this invention discloses a radioactive particle magazine loading device and its usage method, which can achieve precise particle grabbing, accurate control, stable loading, and safe operation.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A radioactive particle magazine loading device includes four modules: a positioning module, a gripping module, a loading module, and a driving module.

[0006] The positioning module is specifically used to position and fix various parts in other modules in the vertical direction.

[0007] The specific function of the grasping module is to accurately grasp individual radioactive particles and achieve precise control over the number of input and output particles;

[0008] The loading module's specific function is to fix the particle magazine to receive the grabbing module and use the particles' own weight to perform a rapid loading operation.

[0009] The specific function of the drive module is to achieve precise and automated control of the path of the particle gun push handle and the particle magazine push rod;

[0010] Furthermore, the specific structure of the positioning module includes a fixed base, an XYZR axis displacement platform, a cylinder support frame, and a slider connector; the specific structure of the gripping module includes a particle gun; the specific structure of the loading module includes a particle magazine, a particle magazine loading frame, and a connecting block; and the specific structure of the driving module includes a miniature cylinder and a lead screw slide.

[0011] Furthermore, the fixed base in the positioning module is T-shaped, consisting of a flat plate at the bottom and a vertical plate at the top, with a groove on one side of the vertical plate for mounting the XYZR axis displacement platform.

[0012] The XYZR axis displacement platform can translate in all directions to ensure that the particle gun is moved to the most accurate position.

[0013] Furthermore, in the positioning module, the XYZR axis displacement platform is connected to the groove of the "T"-shaped fixed base through the countersunk hole on the XYZR axis displacement platform base, and the cylinder support frame is connected to the front end of the vertical plate of the fixed base through the countersunk hole at its bottom.

[0014] Furthermore, the specific structure of the particle gun in the grasping module of the present invention includes a particle gun body, a particle gun end cap, a particle gun push handle, and a particle gun nozzle. A lifting hole is provided in the upper center of the particle gun body. The rear end of the particle gun body is connected to an interface two and an interface one arranged vertically. The particle gun nozzle is located at the front end of the particle gun body. The direction of the interface two is directly opposite the particle gun nozzle. The particle gun push handle is vertically installed in the lifting hole. The lower part of the particle gun push handle extends out of the particle gun body and is connected to a micro cylinder. The particle gun body is bolted to the XYZR axis displacement platform to facilitate subsequent fine adjustment of the particle gun in the XYZR axis direction.

[0015] Furthermore, the miniature cylinder is fixed on the cylinder support frame below the particle gun. The lower end of the particle gun push handle is provided with a push handle thread, and the front end of the cylinder push rod above the miniature cylinder is also threaded. The two threads may be different sizes, so they are connected together by a matching nut cylinder.

[0016] Furthermore, the magazine loading rack is installed at the rear end of the vertical plate of the fixed base. A square groove is provided on one side of the magazine loading rack. The lead screw slide is located below the magazine loading rack. The particle magazine includes a particle chamber, a magazine push rod, and a particle magazine rotating body. The particle chamber is a cuboid structure. A particle chamber cover is movably provided on the outside of the particle chamber. A vertical slot is provided inside the particle chamber. The particle chamber is fixed in the square slot. The right end of the particle chamber is precisely connected to the muzzle of the particle gun. The bottom of the particle chamber is connected to the particle magazine rotating body by a thread. The magazine push rod is movably located inside the particle magazine rotating body. The upper end of the magazine push rod is flat and extends into the slot. The lower end of the magazine push rod is a large cylindrical pin connected to the connecting block on the lead screw slide.

[0017] Furthermore, the lead screw slide is equipped with a lead screw slide slider, and a lead screw slide motor is located below the lead screw slide. The lead screw slide motor drives the lead screw slide slider to move through the lead screw. A connecting block is set on the lead screw slide slider through a slider connector, and the connecting block is equipped with a vertical slot-shaped hole.

[0018] The method of using the radioactive particle magazine loading device of the present invention includes the following steps:

[0019] (1) Install the XYZR axis displacement platform, particle gun, particle magazine, particle magazine loading rack, connecting block, micro cylinder, and lead screw slide on the "T" type fixed base. Adjust the position of the particle gun through the XYZR axis displacement platform so that the muzzle of the particle gun is aligned with the inlet of the particle chamber. Use a large cylindrical pin to insert into the pin hole of the connecting block and the pin hole of the magazine push rod to achieve the connection and realize the positioning module function.

[0020] (2) The power mechanism in the drive module is connected to the power supply or air source and the corresponding speed is set. In this design, a micro cylinder and a lead screw slide are selected to realize the function of the drive module.

[0021] (3) The particle gun interface 2 and interface 1 are connected to the power source. The push handle is equipped with a positioning channel. At this time, the radioactive particle interface 1 is aligned with the positioning channel. The air passage 1 blows the single particle into the positioning channel. Then the particle gun push handle is pushed upward until the upper surface of the particle gun push handle hits the bottom surface of the particle gun end cap. At this time, interface 2 is open. The particle is subjected to force in this direction and is output into the particle chamber in a predetermined posture through the particle gun nozzle. Subsequently, the particle gun push handle is pulled down by the cylinder push rod. The particle positioning channel continues to connect to interface 1, and the function forms a closed loop to realize the grasping module function.

[0022] (4) The particles enter the right port of the particle chamber through the muzzle of the particle gun. Whenever the particle gun push handle completes the grabbing action of a particle, the magazine push rod is precisely pulled down by the diameter of a particle to ensure that the particles can be stably and tightly attached to the magazine push rod 6-2, thus realizing the loading module function.

[0023] Furthermore, the main body of the particle gun is made of engineering plastic, while the particle gun end cap, particle gun push handle, and particle gun muzzle are all made of metal.

[0024] Furthermore, the inner diameter of the particle gun nozzle is slightly larger than the particle diameter, and the aperture of the right port of the particle chamber is slightly larger than the outer diameter of the particle gun nozzle.

[0025] Furthermore, the radioactive particles mentioned herein, including radioactive particles with the same purpose and scenario, are all within the scope of the claims of this invention, including but not limited to: iodine-125 particles (I 125 ), iodine-125 particle chains, cesium-131 ​​(Cs) 131 ), Iridium-192 (Ir) 192 Cobalt-60 (Co) 60 )wait.

[0026] Furthermore, the diameter of the large cylindrical pin is slightly smaller than the diameter of the pin hole of the coupling block and the pin hole of the magazine push rod, thereby realizing the function of the two-axis connection module.

[0027] Furthermore, the entire design is placed vertically, with the upper end of the clip push rod being flat and extending into the slot to form a vertical positioning.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. Precise grasping and control. The grasping module has a sophisticated structure with low coupling and high cohesion, making it suitable for operation of other add-on products and meeting the needs of more complex scenarios.

[0030] 2. Shift from traditional manual particle loading to achieve stable and accurate loading. The loading module design changes the particle loading process from "exit" to "inlet," effectively preventing particle attitude deviation after entering the magazine. This reduces the attitude requirements for particle entry into the magazine, avoids the risk of jamming when pushing particles into the hole as in traditional loading methods, and ensures loading accuracy and stability.

[0031] 3. Eliminates particle chamber installation steps, improving loading efficiency. Compared to traditional manual gripping and commercially available automatic loading systems, which require disassembling the magazine structure for individual particle filling, this device avoids this cumbersome step, greatly improving loading efficiency.

[0032] 4. Safety is guaranteed, and automated operation is possible. The drive module is ergonomically designed, suitable for manual or human-machine control, with no redundant steps, minimizing the risk of particle leakage of radioactive elements due to particle loss or jamming. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the particle magazine loading device described in this invention;

[0034] Figure 2 This is a diagram of the particle gun installation as described in this invention;

[0035] Figure 3 This is a schematic diagram of the particle gun assembly described in this invention;

[0036] Figure 4 This is the particle gun workflow described in this invention;

[0037] Figure 5 This is a perspective view of the connection between the particle gun push handle and the miniature cylinder push rod described in this invention;

[0038] Figure 6 Details of the particle magazine mounting and loading frame described in this invention. Figure 1 ;

[0039] Figure 7 Details of the particle magazine mounting and loading frame described in this invention. Figure 2 ;

[0040] Figure 8 This is an assembly diagram of the particle magazine described in this invention;

[0041] Figure 9 This is a detailed diagram of the connection between the coupling block and the magazine push rod described in this invention;

[0042] Figure 10 This is an overall installation diagram of the lead screw slide table described in this invention.

[0043] List of identifiers in attached diagrams:

[0044] 1. I-shaped fixed base; 2. XYZR axis displacement platform; 3. Cylinder support frame; 4. Slider connector; 5. Particle gun; 6. Particle magazine; 7. Particle magazine loading frame; 8. Coupling block; 9. Miniature cylinder; 10. Lead screw slide; 2-1. Groove; 4-1. Slider connector threaded hole; 5-1. Particle gun body; 5-1-1. Particle gun interface one; 5-1-2. Particle gun interface two; 5-2. Particle gun end cap; 5-2-1. Air passage one; 5-2 -2. Air passage 2; 5-3. Particle gun push handle; 5-4. Particle gun muzzle; 5-5. Push handle thread; 5-6. Positioning channel; 6-1. Particle chamber; 6-2. Magazine push rod; 6-3. Particle magazine rotating body; 6-4. Empty slot; 7-1. Square slot; 7-3. Particle chamber top cover; 8-2. Large cylindrical pin; 8-1-1. Slotted hole; 9-2. Cylinder push rod; 9-3. Adaptor nut cylinder; 10-1. Screw slide block slider; 10-2. Screw slide motor. Detailed Implementation

[0045] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0046] like Figure 1 As shown, the radioactive particle magazine loading device of the present invention includes a fixed base 1, an XYZR axis displacement platform 2, a cylinder support frame 3, a slider connector 4, a particle gun 5, a particle magazine 6, a particle magazine loading frame 7, a connecting block 8, a miniature cylinder 9, and a lead screw slide 10.

[0047] The fixed base 1 is T-shaped and consists of a flat plate at the bottom and a vertical plate at the top. A groove 2-1 is provided on one side of the vertical plate for mounting the XYZR axis displacement platform 2.

[0048] The XYZR axis displacement platform 2 can be translated in all directions to ensure that the particle gun 5 is moved to the most accurate position.

[0049] The XYZR axis displacement platform 2 is connected to the groove 2-1 of the "T"-shaped fixed base through the countersunk hole on the XYZR axis displacement platform base 2-1. The cylinder support frame 3 is also connected to the front end of the vertical plate of the fixed base 1 through the countersunk hole at its bottom.

[0050] like Figure 3 As shown, the specific structure of the particle gun 5 in the grasping module of the present invention includes a particle gun body 5-1, a particle gun end cap 5-2, a particle gun push handle 5-3, and a particle gun nozzle 5-4. A lifting hole is provided in the upper center of the particle gun body 5-1. The rear end of the particle gun body 5-1 is connected to an interface 2 5-1-2 and an interface 1 5-1-1 arranged vertically. The particle gun nozzle 5-4 is located at the front end of the particle gun body 5-1. The direction of the interface 2 5-1-2 is directly opposite to the particle gun nozzle 5-4. The particle gun push handle 5-3 is vertically installed in the lifting hole. The lower part of the particle gun push handle 5-3 extends out of the particle gun body 5-1 and is connected to a micro cylinder 9. The particle gun body 5-1 is bolted to the XYZR axis displacement platform 2, which facilitates the fine adjustment of the particle gun 5 in the XYZR axis direction later.

[0051] The miniature cylinder is fixed on the cylinder support frame 3 below the particle gun 5. The lower end of the particle gun push handle 5-3 is provided with a push handle thread 5-5. The front end of the cylinder push rod 9-2 above the miniature cylinder 9 is also threaded. The two threads may be different in size, so they are connected together by the adapter nut cylinder 9-3.

[0052] The magazine loading rack 7 is installed at the rear end of the vertical plate of the fixed base 1. A square groove 7-1 is provided on one side of the magazine loading rack 7. The lead screw slide 10 is located below the magazine loading rack 7. The particle magazine 6 includes a particle chamber 6-1, a magazine push rod 6-2, and a particle magazine rotating body 6-3. The particle chamber 6-1 has a cuboid structure. A particle chamber cover 7-3 is movably provided on the outside of the particle chamber 6-1. A vertical slot 6-4 is provided inside the particle chamber 6-1. The particle chamber 6-1 is fixed in the square groove 7-1. The right end of the particle chamber 6-1 is precisely connected to the muzzle 5-4 of the particle gun. The lower part of the particle chamber 6-1 is connected to the particle magazine rotating body 6-3 by a thread. The magazine push rod 6-2 is movably disposed inside the particle magazine rotating body 6-3. The upper end of the magazine push rod 6-2 is flat and extends into the empty groove 6-4. The lower end of the magazine push rod 6-2 is a large cylindrical pin 8-2 connected to the connecting block 8 on the lead screw slide table 10.

[0053] The magazine push rod 6-2 is connected to the particle magazine rotating body 6-3 via an internal spring. The particle magazine rotating body 6-3 is threadedly connected to the particle chamber 6-1. After the particle magazine 6 is installed, it is directly placed on the particle magazine loading frame 7. The front end face of the particle chamber 6-1 coincides with the inner front end face of the magazine loading frame to achieve vertical positioning. The left end face of the particle chamber 6-1 coincides with the inner left end face of the magazine loading frame to achieve horizontal positioning. The particle chamber cover 7-3 is fixed in the threaded hole of the particle magazine loading frame to fix the particle chamber. The rear end face of the particle magazine rotating body fits against the slot 7-1-4 of the particle magazine loading frame to form vertical positioning.

[0054] The lead screw slide table 10 is equipped with a lead screw slide slider 10-1, and a lead screw slide motor 10-2 is located below the lead screw slide table 10. The lead screw slide motor 10-2 drives the lead screw slide slider 10-1 to move via the lead screw. A connecting block 8 is provided on the lead screw slide slider 10-1 through a slider connector 4. The connecting block 8 is provided with a vertical slot-shaped hole 8-1-1.

[0055] Includes the following steps:

[0056] (1) Install the XYZR axis displacement platform 2, particle gun 5, particle magazine 6, particle magazine loading rack 7, connecting block 8, micro cylinder 9, and lead screw slide 10 on the "T" type fixed base 1. Adjust the position of particle gun 5 through the XYZR axis displacement platform 2 so that the particle gun muzzle 5-4 is aligned with the inlet of particle chamber 6-1. Use a large cylindrical pin 8-2 to insert into the pin hole of the connecting block and the pin hole of the magazine push rod to achieve connection and realize the positioning module function.

[0057] (2) The power mechanism in the drive module is connected to the power supply or air source and the corresponding speed is set. In this design, a micro cylinder 9 and a lead screw slide 10 are selected to realize the function of the drive module.

[0058] (3) such as Figure 4 As shown, the particle gun 5 has a power source connected to interface 5-1-2 and interface 5-1-1 (interface 5-1-1 is connected to air passage 5-2-1; interface 5-1-2 is connected to air passage 5-2-2). The push handle has a positioning channel 5-6 (a separate particle placement chamber) inside. At this time, the radioactive particle interface 5-1-1 is aligned with the positioning channel 5-6. Air passage 5-2-1 blows a single particle into the positioning channel 5-6. Then, the particle gun push handle 3 is pushed upward until the upper surface of the particle gun push handle hits the bottom surface of the particle gun end cap 2. At this time, interface 2 is open (interface 5-1-2 is connected to air passage 5-2-2). The particle is subjected to force in this direction and is output into the particle chamber 6-1 through the particle gun nozzle 5-4 in a predetermined posture. Subsequently, the particle gun push handle 5-3 is pulled down by the cylinder push rod 9-2. The particle positioning channel is connected to interface 5-1-1 again, forming a closed loop and realizing the grasping module function.

[0059] (4) The particles enter the right port of the particle chamber 6-1 through the particle gun muzzle 5-4. Whenever the particle gun push handle 5-3 completes the grabbing action of a particle, the magazine push rod 6-2 precisely pulls down by the diameter of a particle, ensuring that the particles can be stably and tightly attached to the magazine push rod 6-2, thus realizing the loading module function.

[0060] This device can be summarized into four modules: positioning module, grasping module, loading module, and driving module.

[0061] The positioning module is specifically used to position and fix various parts in other modules in the vertical direction.

[0062] The specific function of the grasping module is to accurately grasp individual radioactive particles and achieve precise control over the number of input and output particles;

[0063] The loading module's specific function is to fix the particle magazine to receive the grabbing module and use the particles' own weight to perform a rapid loading operation.

[0064] The specific function of the drive module is to achieve precise and automated control of the path of the particle gun push handle and the particle magazine push rod;

[0065] Specifically:

[0066] like Figure 1 , Figure 2 As shown, the positioning module is fixed with the I-shaped fixed base 1, XYZR axis displacement platform 2, cylinder support frame 3, and slider connector 4, and is installed with other components. The position of the particle gun 5 is adjusted by the XYZR axis displacement platform 2, and the large cylindrical pin 8-2 is inserted into the pin hole of the connecting block and the pin hole of the magazine push rod to achieve the connection and realize the positioning module function.

[0067] like Figure 1 , Figure 5 , Figure 10 As shown, the power mechanism in the drive module is connected to a power source or an air source and the corresponding speed is set. In this design, a miniature cylinder 9 and a lead screw slide 10 are selected to realize the function of the drive module.

[0068] like Figure 3 and Figure 4As shown, the power source is connected to the particle gun interface 5-1-1 and interface 5-1-2. The radioactive particle interface 5-1-1 enters the positioning channel 5-6 in the particle push handle 5-3. The micro cylinder 9 is activated and acts on the lower part of the particle gun push handle 5-3, causing the particle gun push handle 3 to be pushed upward until the upper surface of the particle gun push handle hits the lower surface of the particle gun end cap 2. At this time, interface 5-1-2 and air passage 5-2-1 are connected. The particles are subjected to force in this direction and are output in a predetermined posture through the particle gun nozzle 5-4. Subsequently, the particle gun push handle 5-3 is pulled down by the cylinder push rod 9-2, and the particle positioning channel continues to connect to interface 1, forming a closed loop and realizing the function of the grasping module.

[0069] like Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, particles enter the right port of the particle chamber through the particle gun muzzle 5-4. Whenever the particle gun push handle 5-3 completes the grabbing action of a particle, the lead screw slide motor starts, driving the magazine push rod 6-2 to precisely pull down by the diameter of a particle, ensuring that the particle can be stably and tightly attached to the push rod, realizing the loading module function.

[0070] The core protection of this device is the trajectory and effect of particle motion. The drive module can be manually driven or driven by different types of power elements such as air source, mechanical drive, and electromagnetic drive. This invention patent is not limited to this example, and similar structures are all protected by this invention.

[0071] It should be noted that the above content merely illustrates the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, various improvements and modifications can be made without departing from the principle of the present invention, and all such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A radioactive particle magazine loading device, characterized in that: It includes four modules: positioning module, grasping module, loading module, and driving module. The positioning module is specifically used to vertically position and fix various parts in the gripping module, loading module and driving module. The specific function of the grasping module is to accurately grasp individual radioactive particles and achieve precise control over the number of input and output particles; The loading module is specifically designed to fix the particle magazine and use the particle's own weight to perform a rapid loading operation. The specific function of the drive module is to achieve precise movement of the particle gun push handle and the particle magazine push rod; The specific structure of the positioning module includes a fixed base (1), an XYZR axis displacement platform (2), a cylinder support frame (3), and a slider connector (4); the specific structure of the gripping module includes a particle gun (5); the specific structure of the loading module includes a particle magazine (6), a particle magazine loading frame (7), and a connecting block (8); the specific structure of the driving module includes a miniature cylinder (9) and a lead screw slide (10). The specific structure of the particle gun (5) in the grasping module includes a particle gun body (5-1), a particle gun end cap (5-2), a particle gun push handle (5-3), and a particle gun muzzle (5-4). A lifting hole is provided in the upper center of the particle gun body (5-1). The rear end of the particle gun body (5-1) is connected to the upper and lower arranged interface two (5-1-2) and interface one (5-1-1). The particle gun muzzle (5-4) is located at the front end of the particle gun body (5-1). The direction of the interface two (5-1-2) is directly opposite the particle gun muzzle (5-4). The particle gun push handle (5-3) is vertical. Installed in the lifting hole, the lower part of the particle gun push handle (5-3) extends out of the particle gun body (5-1) and connects to the micro cylinder (9). The particle gun body (5-1) is connected to the XYZR axis displacement platform (2) by bolts. The micro cylinder is fixed on the cylinder support frame (3) below the particle gun (5). The lower end of the particle gun push handle (5-3) is provided with a push handle thread (5-5). The front end of the cylinder push rod (9-2) above the micro cylinder (9) is also threaded. The lower end of the particle gun push handle (5-3) is connected to the front end of the cylinder push rod (9-2) by the adapter nut cylinder (9-3). The magazine loading rack (7) is installed at the rear end of the vertical plate of the fixed base (1). A square groove (7-1) is provided on one side of the magazine loading rack (7). The screw slide (10) is located below the magazine loading rack (7). The particle magazine (6) includes a particle chamber (6-1), a magazine push rod (6-2), and a particle magazine rotator (6-3). The particle chamber (6-1) is a cuboid structure. A particle chamber cover (7-3) is movably provided on the outside of the particle chamber (6-1). A vertical slot (6-4) is provided inside the particle chamber (6-1). The particle chamber (6-1) is fixed in the square groove (7-1). Inside, the right port of the particle chamber (6-1) is precisely connected to the muzzle (5-4) of the particle gun. The lower part of the particle chamber (6-1) is connected to the particle magazine rotating body (6-3) by a thread. The magazine push rod (6-2) is movably set inside the particle magazine rotating body (6-3). The lower end of the magazine push rod (6-2) is a large cylindrical pin (8-2), which is connected to the connecting block (8) on the lead screw slide (10). The particle magazine (6) is placed vertically, and the upper end of the magazine push rod (6-2) is flat and extends into the slot (6-4) to form a vertical positioning. The lead screw slide (10) is provided with a lead screw slide slider (10-1), and the lead screw slide motor (10-2) is provided below the lead screw slide (10). The lead screw slide motor (10-2) drives the lead screw slide slider (10-1) to move through the lead screw. The lead screw slide slider (10-1) is provided with a connecting block (8) through the slider connector (4). The connecting block (8) is provided with a vertical slot hole (8-1-1).

2. The radioactive particle magazine loading device according to claim 1, characterized in that: The fixed base (1) in the positioning module is "T" shaped and is composed of a flat plate at the bottom and a vertical plate at the top. A groove (2-1) is provided on one side of the vertical plate for installing the XYZR axis displacement platform (2). In the positioning module, the XYZR axis displacement platform (2) is connected to the groove (2-1) of the "T"-shaped fixed base through the countersunk hole on the XYZR axis displacement platform base. The cylinder support frame (3) is connected to the front end of the vertical plate of the fixed base (1) through the countersunk hole at its bottom. The miniature cylinder (9) is fixed on the cylinder support frame (3).

3. The radioactive particle magazine loading device according to claim 1, characterized in that: The particle gun (5) is made of engineering plastic material, and the particle gun end cap (5-2), particle gun push handle (5-3) and particle gun muzzle (5-4) are all made of metal material.

4. The radioactive particle magazine loading device according to claim 1, characterized in that: The radioactive particles include iodine-125 particles, iodine-125 particle chains, cesium-131, iridium-192, and cobalt-60.

5. The method of using the radioactive particle magazine loading device according to claim 1, characterized in that: Includes the following steps: (1) Install the XYZR axis displacement platform (2), particle gun (5), particle magazine (6), particle magazine loading rack (7), connecting block (8), micro cylinder (9), and lead screw slide (10) on the "T" type fixed base (1). Adjust the position of the particle gun (5) through the XYZR axis displacement platform (2) so that the muzzle (5-4) of the particle gun is aligned with the inlet of the particle chamber (6-1). Use a large cylindrical pin (8-2) to insert into the pin hole of the connecting block and the pin hole of the magazine push rod to achieve connection and realize the positioning module function. (2) The power mechanism in the drive module is connected to the power supply or air source and the corresponding speed is set. In this design, a micro cylinder (9) and a lead screw slide (10) are selected to realize the function of the drive module. (3) The particle gun (5) is connected to the power source at interface 2 (5-1-2) and interface 1 (5-1-1). The push handle is equipped with a positioning channel (5-6). At this time, the radioactive particle interface 1 (5-1-1) is aligned with the positioning channel (5-6). The air passage 1 (5-2-1) blows the single particle into the positioning channel (5-6). Then the particle gun push handle (5-3) is pushed upward until the upper surface of the particle gun push handle hits the bottom surface of the particle gun end cap (5-2). At this time, interface 2 is connected to the power source. The particle is subjected to force and output to the particle chamber (6-1) in a predetermined posture through the particle gun nozzle (5-4). Subsequently, the particle gun push handle (5-3) is pulled down by the cylinder push rod (9-2) and continues to connect to interface 1 (5-1-1). The function forms a closed loop and realizes the function of the grasping module. (4) The particles enter the right port of the particle chamber (6-1) through the particle gun muzzle (5-4). Whenever the particle gun push handle (5-3) completes the grabbing action of a particle, the magazine push rod (6-2) precisely pulls down by the diameter of a particle, ensuring that the particles can be stably and tightly attached to the magazine push rod (6-2) to realize the loading module function.

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