Radioactive particle continuous injection mechanism

Abstract

The utility model relates to the technical field of medical instruments, and provides a radioactive particle continuous injection mechanism which comprises a placement frame, an injection tube is arranged on the placement frame, a quantitative discharge assembly is arranged on the placement frame, and an adjusting sliding assembly is arranged in the placement frame. The quantitative discharge assembly comprises a placement piece, the placement piece is arranged in the injection pipe, an insertion pipe is arranged on the placement piece, a rotating ball is arranged in the injection pipe, the rotating ball is connected with the injection pipe through a pin shaft, a liquid passing groove is formed in the rotating ball, and the lower end of the injection pipe is connected with a butt joint pipe. By means of the technical scheme, the problems that in the prior art, in the injection process, hand holding is needed, fixing cannot be achieved, manual injection is needed in the radioactive particle injection process, and consequently the dosage cannot be guaranteed are solved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a mechanism for continuous injection of radioactive particles. Background Art

[0002] Radioactive particles are small rods made by sealing radioactive nuclides that kill tumor cells inside a metal shell. After being implanted into the body, they can treat malignant tumors by irradiating tumor cells at close range. It includes temporary implantation therapy and permanent particle implantation therapy.

[0003] Permanent radioactive seed implantation commonly uses iodine-125 (I-125) and palladium-103 (I-103), with I-125 being the most frequently used and having a half-life of 59.6 days. Transient implantation often uses iridium-192 (Ir-192). Studies have shown that isotope selection has no impact on tumor control. Several methods of permanent radioactive seed implantation are currently used. Before implantation, transrectal ultrasound images are used to calculate the radiotherapy plan, and these images are subsequently used for intraoperative seed localization. The dose distribution calculation is performed during surgery, and advanced computer software can be used for dose optimization. High-dose-rate brachytherapy has also been used to treat prostate cancer.

[0004] However, the following problems exist in the commonly used radioactive particle injection process: 1. The injection process requires hand-holding and cannot be fixed; 2. The injection process requires manual injection, which makes it impossible to guarantee the dosage. Therefore, a continuous radioactive particle injection mechanism is developed. Utility Model Content

[0005] This invention proposes a continuous radioactive particle injection mechanism, which solves the problem in related technologies that the injection process requires hand-holding and cannot be fixed, and that manual injection is required during the radioactive particle injection process, resulting in the inability to guarantee the dosage.

[0006] The technical solution of this utility model is as follows: including...

[0007] A placement frame, on which an injection tube is provided;

[0008] A metering emission assembly, wherein the metering emission assembly is mounted on the mounting frame;

[0009] Adjust the sliding assembly, which is disposed inside the mounting frame;

[0010] The quantitative discharge component includes a mounting plate disposed inside the injection tube. The mounting plate is provided with a connector. A rotating ball is disposed inside the injection tube and is connected to the injection tube by a pin. A liquid groove is formed on the rotating ball, and a connecting pipe is connected to the lower end of the injection tube.

[0011] As a further technical solution, the bottom surface of the injection tube is provided with an arc-shaped slope, and the bottom of the arc-shaped slope is provided with a discharge port.

[0012] As a further technical solution, the adjusting sliding assembly includes a sliding groove, which is opened on the inner surface of the mounting frame, and a sliding block is fixedly fitted on the outer surface of the injection tube, the sliding block being embedded in the sliding groove.

[0013] As a further technical solution, a limiting groove is opened on one side surface of the mounting frame, and a locking bolt is provided on the sliding block, with one end of the locking bolt passing through the limiting groove.

[0014] As a further technical solution, the bottom surface of the mounting frame is provided with a mounting plate, and the mounting plate has bolt positioning holes.

[0015] As a further technical solution, the mounting frame has a semi-circular structure, and a sliding cavity is opened inside the mounting frame. The sliding groove is opened on opposite sides of the sliding cavity.

[0016] As a further technical solution, the rotating sphere is driven to rotate by a motor.

[0017] As a further technical solution, the sliding groove matches the structure of the mounting frame, the sliding groove is fitted with the sliding block, and the contour structure of the sliding block fits into the sliding groove.

[0018] As a further technical solution, the lower end face of the connecting pipe is provided with an anti-slip connection layer, which is composed of multiple wave-shaped stacked splices.

[0019] As a further technical solution, the connecting tube and the injection tube are sealed together, and the discharge port is connected to the connecting tube.

[0020] The working principle and beneficial effects of this utility model are as follows:

[0021] The following effects are achieved in this utility model: 1. The angle of the injection tube in the sliding assembly can be adjusted on the mounting frame by adjusting the injection tube. After the rotating ball inside the injection tube rotates at a fixed frequency, the liquid passage groove on the rotating ball can continuously flow the liquid into the connecting tube; 2. The locking bolt in the sliding assembly can be moved in the limiting groove by adjusting the locking bolt. When positioning is required, the locking bolt is tightened and locked in the limiting groove, so that the injection tube is positioned. After the bolt positioning hole on the mounting plate is tightened, the mounting frame is fixed. The sliding cavity is used for the sliding block to slide and make the sliding block more stable. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an isometric view of the quantitative emission component of this utility model;

[0025] Figure 3 This is a cross-sectional view of the mounting frame of this utility model;

[0026] Figure 4 This is a cross-sectional view of the injection tube of this utility model;

[0027] In the diagram: 1. Mounting frame; 2. Injection tube; 3. Quantitative discharge assembly; 3-1. Mounting plate; 3-2. Insertion tube; 3-3. Rotating sphere; 3-4. Liquid passage tank; 3-5. Connecting tube; 3-6. Curved slope; 3-7. Discharge port; 4. Adjustment sliding assembly; 4-1. Sliding groove; 4-2. Sliding block; 5. Limiting groove; 6. Locking bolt; 7. Mounting plate; 8. Bolt positioning hole; 9. Sliding cavity; 10. Anti-slip connection layer. DETAILED DESCRIPTION

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] like Figures 1-4 As shown, this embodiment proposes a continuous radioactive particle injection mechanism, including...

[0030] A placement frame 1, on which an injection tube 2 is installed;

[0031] A quantitative emission component 3 is mounted on the mounting frame 1.

[0032] Adjust the sliding component 4, which is located inside the mounting frame 1;

[0033] The quantitative discharge component 3 includes a mounting plate 3-1, which is disposed inside the injection tube 2. A connector 3-2 is provided on the mounting plate 3-1. A rotating ball 3-3 is provided inside the injection tube 2. The rotating ball 3-3 is connected to the injection tube by a pin. A liquid passage groove 3-4 is opened on the rotating ball 3-3. A connecting pipe 3-5 is connected to the lower end of the injection tube.

[0034] In this embodiment, the angle of the injection tube 2 can be adjusted on the mounting frame 1. After the rotating ball 3-3 inside the injection tube 2 rotates at a fixed frequency, the liquid passage groove 3-4 on the rotating ball 3-3 can continuously flow the liquid into the connecting tube 3-5.

[0035] Specifically, the bottom surface of the injection tube 2 is provided with an arc-shaped slope 3-6, and the bottom of the arc-shaped slope 3-6 is provided with an outlet 3-7.

[0036] In this embodiment, the curved slope 3-6 is used to gather the liquid, and the outlet 3-7 can discharge the liquid.

[0037] Furthermore, the adjusting sliding component 4 includes a sliding groove 4-1, which is opened on the inner surface of the mounting frame 1. A sliding block 4-2 is fixedly fitted on the outer surface of the injection tube 2, and the sliding block 4-2 is embedded in the sliding groove 4-1.

[0038] In this embodiment, when the injection tube 2 moves, the sliding block 4-2 slides in the sliding groove 4-1 to assist the injection tube 2 in moving.

[0039] Furthermore, a limiting groove 5 is opened on one side surface of the mounting frame 1, a locking bolt 6 is provided on the sliding block 4-2, one end of the locking bolt 6 passes through the limiting groove 5, and an installation plate 7 is provided on the bottom surface of the mounting frame 1, with bolt positioning holes 8 opened on the installation plate 7.

[0040] In this embodiment, during the movement of the injection tube 2, the locking bolt 6 moves within the limiting groove 5. When positioning is required, the locking bolt 6 is screwed into the limiting groove 5 to position the injection tube 2. After the bolts are screwed into the bolt positioning holes 8 on the mounting plate 7, the mounting bracket 1 is fixed.

[0041] Furthermore, the mounting frame 1 has a semi-circular structure, and a sliding cavity 9 is opened inside the mounting frame 1. The sliding groove 4-1 is opened on opposite sides of the sliding cavity 9. The rotating ball 3-3 is driven to rotate by a motor. The sliding groove 4-1 matches the structure of the mounting frame 1. The sliding groove 4-1 and the sliding block 4-2 are fitted together. The outline structure of the sliding block 4-2 fits into the sliding groove 4-1.

[0042] In this embodiment, the sliding cavity 9 is used for the sliding clearance of the sliding block 4-2, making the sliding block 4-2 more stable.

[0043] Furthermore, the lower end face of the connector 3-5 is provided with an anti-slip connecting layer 10, which is composed of multiple wave-shaped stacked splices. The connector 3-5 and the injection tube 2 are sealed and inserted, and the outlet 3-7 is connected to the connector 3-5.

[0044] In this embodiment, the anti-slip connecting layer 10 is used to connect the connecting tube 3-5 to the injection tube 2.

[0045] When the injection position needs to be adjusted, the angle of the injection tube 2 can be adjusted on the mounting bracket 1. After the rotating ball 3-3 inside the injection tube 2 rotates at a fixed frequency, the liquid passage groove 3-4 on the rotating ball 3-3 can continuously flow the liquid into the connecting tube 3-5. When the injection tube 2 moves, the sliding block 4-2 slides in the sliding groove 4-1 to assist the injection tube 2 in moving. During the movement of the injection tube 2, the locking bolt 6 moves in the limiting groove 5. When positioning is required, the locking bolt 6 is tightened and locked in the limiting groove 5, so that the injection tube 2 is positioned. After the bolts are tightened in the bolt positioning holes 8 on the mounting plate 7, the mounting bracket 1 is fixed.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mechanism for continuous injection of radioactive particles, characterized in that, include A mounting frame (1) is provided with an injection tube (2); A quantitative emission component (3) is disposed on the mounting frame (1); Adjust the sliding assembly (4), which is disposed inside the mounting frame (1); The quantitative discharge component (3) includes a mounting plate (3-1), which is disposed inside the injection tube (2). The mounting plate (3-1) is provided with a connector (3-2). A rotating ball (3-3) is disposed inside the injection tube (2). The rotating ball (3-3) is connected to the injection tube (2) by a pin. A liquid passage groove (3-4) is opened on the rotating ball (3-3). A connecting pipe (3-5) is connected to the lower end of the injection tube (2).

2. The radioactive particle continuous injection mechanism according to claim 1, characterized in that, The bottom surface of the injection tube (2) is provided with an arc-shaped inclined surface (3-6), and the bottom of the arc-shaped inclined surface (3-6) is provided with an outlet (3-7).

3. The continuous injection mechanism for radioactive particles according to claim 1, characterized in that, The adjusting sliding assembly (4) includes a sliding groove (4-1), which is opened on the inner surface of the mounting frame (1). A sliding block (4-2) is fixedly fitted on the outer surface of the injection tube (2), and the sliding block (4-2) is embedded in the sliding groove (4-1).

4. A continuous radioactive particle injection mechanism according to claim 3, characterized in that, A limiting groove (5) is opened on one side surface of the mounting frame (1), and a locking bolt (6) is provided on the sliding block (4-2), with one end of the locking bolt (6) passing through the limiting groove (5).

5. A continuous radioactive particle injection mechanism according to claim 1, characterized in that, The bottom surface of the mounting frame (1) is provided with a mounting plate (7), and the mounting plate (7) has bolt positioning holes (8).

6. A continuous radioactive particle injection mechanism according to claim 3, characterized in that, The mounting frame (1) has a semi-circular structure, and a sliding cavity (9) is opened inside the mounting frame (1). The sliding groove (4-1) is opened on opposite sides of the sliding cavity (9).

7. A continuous radioactive particle injection mechanism according to claim 1, characterized in that, The rotating sphere (3-3) is driven to rotate by a motor.

8. A continuous radioactive particle injection mechanism according to claim 3, characterized in that, The sliding groove (4-1) matches the structure of the mounting frame (1), the sliding groove (4-1) is fitted with the sliding block (4-2), and the outline structure of the sliding block (4-2) fits into the sliding groove (4-1).

9. A continuous radioactive particle injection mechanism according to claim 1, characterized in that, The lower end face of the connecting pipe (3-5) is provided with an anti-slip connecting layer (10), which is composed of multiple wave-shaped stacked splices.

10. A continuous radioactive particle injection mechanism according to claim 2, characterized in that, The connecting tube (3-5) and the injection tube (2) are sealed together, and the discharge port (3-7) is connected to the connecting tube (3-5).

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