A radioactive seed "gun" and method of use thereof

Abstract

The application discloses a radioactive particle gun and a use method thereof, and relates to the technical field of medical devices, in particular to a particle grabbing device of a radioactive particle gun. The device is composed of a particle gun main body, a push rod, a gun muzzle and an end cover. The application realizes stable posture keeping of particles, point-to-point transmission and efficient operation, and ensures accurate grabbing of radioactive particles. Meanwhile, the application also has the ability of precise output control, ensures output of only one particle each time, and realizes precise execution of the particle grabbing function. The design of the application follows the principle of low coupling and high cohesion, and can be easily adapted to various additional products to meet the requirements of complex and changeable application scenarios.

Description

Technical Field

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

[0002] With the increasing popularity of precision medicine, implantable radiation therapy has become a new option for cancer treatment. Commonly used radioactive particles in surgery (including but not limited to: iodine-125 particles) 125 ), iodine-125 particle chains, cesium-131 ​​(Cs) 131 ), Iridium-192 (Ir) 192 Cobalt-60 (Co) 60 Due to its tiny size, the particle gun is prone to slipping or tilting during the grasping process. Furthermore, its titanium alloy outer shell is only 0.05 mm thick, making it easy to puncture the shell when using surgical forceps to clamp the particle cartridge during the initial surgical procedure, potentially leading to radioactive material leakage. Given the difficulty in achieving precise particle grasping while ensuring both grasping accuracy and operational safety, a precise grasping device for radioactive particle guns is needed. Summary of the Invention

[0003] To address the aforementioned problems, this invention discloses a radioactive particle "gun" and its method of use, capable of achieving I 125 It maintains the stable attitude of particles and radioactive particles that meet similar specific scenarios or purposes, and its "point-to-point transmission" operation ensures the precise capture of radioactive particles; its ingenious structure and convenient operation can meet the needs of complex and ever-changing application scenarios.

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

[0005] A radioactive particle "gun" comprises four modules: an input module, a positioning module, a limiting module, and an output module.

[0006] The input module is specifically designed to arrange the particles in an orderly manner and input them into the particle gun in a predetermined posture.

[0007] The positioning module's specific function is to precisely control the rate and number of particles input and output;

[0008] The specific function of the limit module is to control the range of motion of the positioning module;

[0009] The output module's specific function is to output particles from the particle gun in a predetermined posture, and to output only one particle at a time.

[0010] The specific structure of the radioactive particle "gun" includes a particle gun body, a particle gun end cap, a particle gun push handle, and a particle gun muzzle. The particle gun body has a square structure, with a lifting hole in the upper center. The rear end of the particle gun body is connected to a vertically arranged gas path two and a gas path one. The particle gun muzzle is located at the front end of the particle gun body, and the blowing direction of the gas path two is directly opposite the particle gun muzzle. The particle gun push handle is vertically installed in the lifting hole, and a horizontal particle positioning channel is provided in the middle of the particle gun push handle. The particle positioning channel can only accommodate one particle. The lower part of the particle gun push handle extends out of the particle gun body, and the particle gun end cap is movably connected to the top of the particle gun body.

[0011] A method for capturing radioactive particles using a particle gun includes the following steps:

[0012] (1) Gas line one and gas line two are connected to the gas source;

[0013] (2) The particles enter the particle positioning channel through the air path and complete the input module function;

[0014] (3) Use the initial state in the chamfered hole of the particle gun push handle for positioning to complete the positioning module function;

[0015] (4) Manual or mechanical action is applied to the bottom of the particle gun push handle, so that 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, the blowing direction of the second air passage, the particle positioning channel, and the particle gun nozzle are on the same straight line, thus completing the function of the limit module.

[0016] (5) The second air path blows air to output the only particle in the particle positioning channel through the particle gun muzzle in a predetermined posture, thus completing the output module function;

[0017] (6) The particle gun push handle descends by its own weight, and the particle positioning channel continues to connect to the first air path, forming a closed loop.

[0018] Furthermore, the particle gun body has screw holes at the four outer corners on the upper side, and the particle gun end cap has countersunk holes at the four corners. The particle gun end cap is connected to the particle gun body by bolts.

[0019] Furthermore, the lifting hole is a T-shaped hole, and the particle gun push handle is clearance-fitted with the lifting hole.

[0020] Furthermore, the particle positioning channel is fitted with the particle gap, and the length and diameter of the particle positioning channel are slightly larger than the particle.

[0021] Furthermore, the rear end of the particle gun body is provided with interface 2 and interface 1 arranged vertically. Interface 2 is located directly above interface 1. Interface 2 is connected to air passage 2, and interface 1 is connected to air passage 1.

[0022] Furthermore, the particle gun push handle has a chamfered hole on its side.

[0023] Furthermore, the lower end of the particle gun push handle is provided with a threaded line to facilitate connection with other connecting parts.

[0024] Furthermore, the particle gun muzzle is located within interface three at the front end of the particle gun body.

[0025] Furthermore, the particle gun body is made of transparent acrylic material, while the particle gun end cap, particle gun push handle, and particle gun muzzle are all made of stainless steel.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. Ingenious structure and convenient operation. The core components of the particle gun are simplified to four pieces, the assembly process is simple, the fixation is stable, and the operation process is simple and easy to understand. Its ingenious structure allows for precise grasping even when operated manually. The overall design fully considers ergonomic principles and is also suitable for human-machine control.

[0028] 2. High precision, enabling accurate "point-to-point" transmission. The particle gun boasts excellent performance, allowing for precise control of particle output in a predetermined manner.

[0029] 3. The design features low coupling and high cohesion, ensuring the independence and synergy between system modules. As a single component, the particle gun is easy and quick to assemble and disassemble, effectively improving maintenance and replacement efficiency. Simultaneously, the particle gun can also be used as an independent particle "tweezers" product, fully demonstrating its versatility and practicality, enabling it to be used in the operation of other add-on products and meeting the needs of more complex scenarios. Attached Figure Description

[0030] Figure 1 This is a rear view of the particle gun body and particle gun end cap after being separated according to the present invention.

[0031] Figure 2 This is a front view of the particle gun body and particle gun end cap after being separated according to the present invention;

[0032] Figure 3 This is a schematic diagram of the working principle of the particle gun push handle described in this invention;

[0033] Figure 4 This is a detailed drawing of the particle gun push handle described in this invention;

[0034] Figure 5 This is a schematic diagram of the assembly of a radioactive particle gun according to the present invention;

[0035] Figure 6 This is a diagram showing the completed assembly of a radioactive particle gun according to the present invention.

[0036] List of identifiers in attached diagrams:

[0037] 1. Particle gun body; 2. Particle gun end cap; 3. Particle gun push handle; 4. Particle gun muzzle; 1-1. Screw hole; 1-2. Lifting hole; 1-3. Particle positioning channel; 1-4. Interface 2; 1-5. Interface 1; 1-6. Interface 3; 2-1. Countersunk hole; 3-1. Particle gun push handle end face; 3-2. Particle gun push handle chamfered hole; 3-3. Particle gun push handle push rod; 3-4. Upper surface of particle gun push handle. Detailed Implementation

[0038] 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.

[0039] like Figure 1 and 2 As shown, this invention relates to a radioactive particle gun particle-grabbing device. The device consists of four parts: a particle gun body 1, a particle gun end cap 2, a particle gun push handle 3, and a particle gun nozzle 4. During installation, the particle gun push handle 3 is inserted into the lifting hole 1-2 on the upper surface of the particle gun body 1. The particle gun push handle 3 is a T-shaped block, with the push rod 3-3 extending out of the particle gun body. The end face 3-1 of the particle gun push handle fits into the lifting hole 1-2. The particle gun end cap 2 is then installed, with its four countersunk holes 2-1 coaxially fixed to the four screw holes 1-1 on the particle gun body 1. The rear end of the particle gun body has two interfaces, 1-4 and 1-5, arranged vertically. Interface 1-4 is positioned directly above interface 1-5, connecting to air passage 2, and interface 1-5 connecting to air passage 1. Both air passages are kept open. The particle gun nozzle 4 is installed in interface 1-6 at the front end of the particle gun body.

[0040] The particle gun push handle 3 and the lifting hole 1-1 are fitted with a clearance of no more than 0.5 mm.

[0041] The particle positioning channel 1-3 in the middle of the particle gun push handle 3 also works in conjunction with the particle gap to ensure that only one particle can be accommodated in the particle positioning channel 1-3 each time.

[0042] This device uses the initial state of particles in the gas path for positioning, such as... Figure 3As shown, initially, the particle gun push handle end face 3-1 blocks air passage two, preventing particles from entering. Manual or mechanical operation of the particle gun push handle push rod 3-3 pushes the particle gun push handle upwards until its upper surface 3-4 touches the lower surface of the particle gun end cap 2, allowing particles to maintain their orientation and continue entering air passage two. At this point, the blowing direction of air passage two, the particle positioning channel 1-3, and the particle gun nozzle 4 are all on a straight line, ultimately outputting particles through the nozzle 4 in a predetermined posture. This allows for precise control, outputting only one particle at a time, achieving the particle "grabbing" function. At this time, the particle gun push handle end face 3-1 blocks air passage one, preventing particles from entering. Subsequently, the particle gun push handle 3 descends under its own weight, reconnecting air passage one.

[0043] To ensure that the particles are not obstructed during the upward propulsion process, the particle gun push handle 3 is designed with a chamfered hole 3-2 in the middle. Figure 4 As shown, this is because interface 2 1-4 and interface 1 1-5 are continuously ventilated, and the particles are closely arranged. When the push handle pushes the particles upward, after the first particle is pushed up, the subsequent particles will also move forward. It is possible that the front end of the second particle will touch the tail end of the particle positioning channel 1-3 (for example, the particle positioning channel 1-3 is 5mm long and 1mm in diameter, and the particle diameter is 0.8mm and the length is 4.5mm). If the particle gun push handle 3 is pushed upward, its shearing force will disrupt the sorting of the subsequent particles. Therefore, it is necessary to remove the second particle. The chamfer of the chamfered hole 3-2 is to provide a backward oblique force for the subsequent particles and also to give the subsequent particles a space. When the particle gun push handle 3 moves upward, it can slide backward and downward, thereby ensuring that only one particle is pushed up each time the push handle is pushed upward and preventing particle wear.

[0044] The second gas path, where gas drives the particles out of the nozzle 4, is one of the driving methods of this invention. All driving methods that achieve similar functions, such as mechanical, fluid, and electromagnetic methods, are also within the scope of protection of this invention.

[0045] In addition, the bottom of the particle gun push rod 3-3 is designed with an M3 thread, which facilitates connection with other connectors.

[0046] 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 "gun", characterized in that: It includes four modules: input module, positioning module, limit module, and output module. The input module is specifically designed to arrange the particles in an orderly manner and feed them into the particle gun in a predetermined posture. The positioning module's specific function is to precisely control the rate and number of particles input and output; The specific function of the limit module is to control the range of motion of the positioning module; The output module's specific function is to output particles from the particle gun in a predetermined posture and to output only one particle at a time. The specific structure of the radioactive particle "gun" includes a particle gun body (1), a particle gun end cap (2), a particle gun push handle (3), and a particle gun nozzle (4). The particle gun body (1) is a square structure. A lifting hole (1-2) is provided in the upper middle part of the particle gun body (1). The rear end of the particle gun body (1) is connected to the upper and lower air passages 2 and 1. The particle gun nozzle (4) is located at the front end of the particle gun body (1). The blowing direction of the air passage 2 is directly opposite the particle gun nozzle (4). The particle gun push handle (3) is vertically installed in the lifting hole (1-2). A horizontal particle positioning channel (1-3) is provided in the middle of the particle gun push handle (3). The particle positioning channel (1-3) can only accommodate one particle. The lower part of the particle gun push handle (3) extends out of the particle gun body (1). The particle gun end cap (2) is movably connected to the upper part of the particle gun body (1). The particle gun body (1) has screw holes (1-1) at the four outer corners on the upper side, and the particle gun end cap (2) has countersunk holes (2-1) at the four corners. The particle gun end cap (2) is connected to the particle gun body (1) by bolts. The lifting hole (1-2) is a T-shaped hole, and the particle gun push handle (3) is in clearance fit with the lifting hole (1-2); the particle positioning channel (1-3) is in clearance fit with the particle. The particle gun body (1) has two interfaces, 1-4 and 1-5, arranged vertically at its rear end. The interface 2 (1-4) is located directly above the interface 1 (1-5). The interface 2 (1-4) is connected to the second air passage, and the interface 1 (1-5) is connected to the first air passage.

2. The radioactive particle "gun" according to claim 1, characterized in that: The radioactive particles include iodine-125 particles (I 125 ), iodine-125 particle chains, cesium-131 ​​(Cs) 131 ), Iridium-192 (Ir) 192 Cobalt-60 (Co) 60 ).

3. A radioactive particle "gun" according to claim 1, characterized in that: The particle gun push handle (3) has a chamfered hole (3-2) on its side.

4. A radioactive particle "gun" according to claim 1, characterized in that: The particle gun body (1) is made of engineering plastic material, while the particle gun end cap (2), particle gun push handle (3) and particle gun muzzle (4) are all made of metal.

5. The method of using a radioactive particle "gun" according to claim 3, characterized in that: Includes the following steps: (1) Gas line one and gas line two are connected to the gas source; (2) The particles enter the particle positioning channel (1-3) through the air path and complete the input module function; (3) Use the initial state in the chamfered hole (3-2) of the particle gun push handle to perform positioning and complete the positioning module function; (4) Manual or mechanical action is applied to the bottom of the particle gun push handle (3) so that the particle gun push handle (3) is pushed upward until the upper surface (3-4) of the particle gun push handle hits the bottom surface of the particle gun end cap (2). At this time, the blowing direction of the second air passage, the particle positioning channel (1-3) and the particle gun nozzle (4) are on the same straight line, thus completing the function of the limit module. (5) The second air path blows air to output the only particle in the particle positioning channel (1-3) through the particle gun muzzle in a predetermined posture, thus completing the output module function; (6) The subsequent particle gun push handle (3) descends by its own weight, and the particle positioning channel (1-3) continues to connect to the first air path, forming a closed loop.

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