Linear accelerator fixing device

Abstract

The utility model relates to the technical field of linear accelerators, and discloses a linear accelerator fixing device, which comprises an accelerator assembly, and the accelerator assembly comprises a base, a fixing frame and a fixing device, the adjusting assembly is arranged on the inner side of the fixed rack; the machine body is arranged on the outer side of the adjusting assembly and rotationally connected with the adjusting assembly; the treatment head is arranged at the bottom of the treatment head; the adjusting assembly comprises a protection box arranged on the outer side of the fixed rack; the electric rotating rod is arranged on the inner side of the protection box and penetrates through the fixed rack; the second gear is arranged on the inner side of the fixed rack and fixedly connected with the electric rotating rod; the first gear is arranged on the inner side of the fixed rack and is in meshed connection with the second gear; through the adjusting assembly, a setter switches on an electric rotating rod power supply, the electric rotating rod rotates to drive a second gear and a first gear to rotate, the rotation angle of the machine body is changed, and the machine body angle is adjusted through electric rotation to cooperate with the diseased part of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of linear accelerators, in particular to a linear accelerator fixing device. Background Art

[0002] Medical linear accelerators are products used for conventional clinical X-ray or electron beam radiotherapy. They use high-frequency electric fields distributed along a linear track to accelerate electrons, protons and heavy ions. High-power high-frequency or microwave power sources are usually used to excite the acceleration cavity. The acceleration electric field of the linear accelerator is of two types: traveling wave and standing wave. Since electrons are close to the speed of light even at low energy, most electron linear accelerators use traveling wave acceleration. They are fixed in the desired position by a fixed frame, and the patient is placed on a matching treatment bed when in use.

[0003] According to the Chinese utility model disclosure CN217526113U, a rotation positioning device for a medical linear accelerator frame is disclosed. It includes a frame, a disc-shaped rotating shaft is provided in the frame, a rotating ring is provided on the disc-shaped rotating shaft, a fixing groove is provided in an annular array on the side wall of the rotating ring, a plurality of guide grooves located on both sides of the fixing groove are provided on the rotating ring, a gear ring is provided on the outer ring of the rotating ring, a fixing frame is fixed on the side wall of the frame, a moving mechanism is provided in the fixing frame, a moving plate is provided at the output end of the moving mechanism, a sliding block is provided in the side wall of the moving plate, a plug rod movably plugged in the fixing groove is fixed to the side wall of the sliding block, a rotating ball matching the guide groove is provided at the end of the plug rod, a fixing mechanism matching the moving plate is provided in the sliding block, and a stabilizing mechanism connected to the fixing frame is provided on both sides of the moving plate. The utility model has the effect of precise fixing.

[0004] The utility model solves the problem of body rotation to a certain extent, but still has defects. The device rotation adjustment power structure motor is not provided with a protective structure on the outside to reduce the influence of external force on the motor, avoid the reduction of motor adjustment efficiency, and extend the service life. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a linear accelerator fixing device, which has the advantages of protecting the adjustment component and solves the problem that the adjustment efficiency of the motor is reduced due to the influence of external forces.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a linear accelerator fixing device, including an accelerator assembly, the accelerator assembly including:

[0009] A base, with a fixed frame disposed on the top;

[0010] An adjustment component is arranged inside the fixed frame;

[0011] A body, disposed outside the adjusting assembly and rotatably connected to the adjusting assembly;

[0012] A treatment head, arranged at the bottom of the treatment head;

[0013] The adjustment component comprises:

[0014] A protective box, arranged outside the fixed frame;

[0015] An electric rotating rod is arranged inside the protection box, and the electric rotating rod passes through the fixed frame;

[0016] A second gear, disposed inside the fixed frame and fixedly connected to the electric rotating rod;

[0017] A first gear, disposed inside the fixed frame and meshingly connected with the second gear;

[0018] A rotating disk, disposed between the fixed frame and the body, and fixedly connected to the first gear;

[0019] The heat dissipation window is arranged inside the protection box.

[0020] Preferably, an auxiliary component is provided on the top of the protective box, and the auxiliary component includes:

[0021] A fixing rod, symmetrically arranged on the top of the protection box;

[0022] A brush plate, disposed between the fixing rods;

[0023] The collection box is arranged outside the protection box.

[0024] Preferably, sliding blocks are symmetrically arranged on the outer side of the brush plate, and sliding grooves cooperating with the brush plate sliding blocks are arranged on the inner side of the fixing rod.

[0025] Preferably, an L-shaped plate matching the base is symmetrically arranged on the outer side of the protection box.

[0026] Preferably, a rotating rod is arranged on the outer side of the second gear, and a rotating groove matching the rotating rod of the second gear is arranged on the inner side of the fixed frame.

[0027] Preferably, a connecting disk matching the rotating disk is provided on the outer side of the machine body.

[0028] Preferably, a rotating plate is arranged on the outer side of the rotating disk, and an annular groove matching the rotating plate of the rotating disk is arranged on the inner side of the fixed frame.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the utility model provides a linear accelerator fixing device, which has the following beneficial effects:

[0031] 1. This linear accelerator fixing device, through the adjustment component, the setting personnel turn on the power of the electric rotating rod, the rotation of the electric rotating rod drives the second gear and the first gear to rotate, so that the rotation angle of the body is changed, and the electric rotation is realized to adjust the body angle to match the patient's diseased part.

[0032] 2. This linear accelerator fixing device, through the auxiliary component, is provided with a brush plate to cooperate with the fixing rod to complete the dust cleaning of the heat dissipation window; by providing an annular groove, the connectivity between the rotating disk and the fixed frame is improved without affecting the rotation of the rotating disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the utility model;

[0034] Figure 2 It is a cross-sectional structural diagram of a fixed frame and a protective box in the utility model;

[0035] Figure 3 It is a schematic diagram of the auxiliary component structure in the utility model;

[0036] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating disk in the utility model;

[0037] In the figure:

[0038] 1. Accelerator assembly; 11. Fixed frame; 12. Base; 13. Treatment head; 14. Body;

[0039] 2. Adjustment assembly; 21. Protection box; 22. Rotating plate; 23. Connecting plate; 24. First gear; 25. Electric rotating rod; 26. Second gear; 27. Heat dissipation window;

[0040] 3. Auxiliary components; 31. Brush plate; 32. Fixing rod; 33. Collection box. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0042] See also Figure 1-4A linear accelerator fixing device comprises an accelerator assembly 1, wherein the accelerator assembly 1 comprises: a base 12, a fixed frame 11 is arranged on the top of the base 12; an adjusting assembly 2 is arranged on the inner side of the fixed frame 11; a body 14 is arranged on the outer side of the adjusting assembly 2 and is rotatably connected with the adjusting assembly 2; a treatment head 13 is arranged at the bottom of the treatment head 13; the accelerator assembly 1 is mainly used to help patients with cancer and the like to undergo microwave treatment. Before use, the patient lies flat on the treatment bed so that the patient's body is within the irradiation range of the treatment head 13, and a person starts the accelerator control system inside the body 14 to generate microwaves, which contact the patient's body and alleviate the patient's condition; the base 12 is used to bear the weight of each component, increase the contact area between the fixed frame 11 and the ground, and enhance the stability of the fixed frame 11 when supporting the body 14; the fixed frame 11 rotates and adjusts the body 14 through the adjusting assembly 2, and cooperates with the position of the patient's diseased part so that the microwaves emitted by the body 14 and the treatment head 13 are accurately irradiated on the diseased part.

[0043] The adjustment component 2 includes: a protection box 21, which is arranged on the outside of the fixed frame 11; an electric rotating rod 25, which is arranged on the inside of the protection box 21, and the electric rotating rod 25 passes through the fixed frame 11; a second gear 26, which is arranged on the inside of the fixed frame 11 and is fixedly connected to the electric rotating rod 25; a first gear 24, which is arranged on the inside of the fixed frame 11 and is meshed with the second gear 26; a rotating disk 22, which is arranged between the fixed frame 11 and the body 14 and is fixedly connected to the first gear 24; a heat dissipation window 27, which is arranged on the inside of the protection box 21; when a person uses the adjustment component 2 to rotate and adjust the angle of the body 14, first turn on the power of the electric rotating rod 25, and the electric rotating rod 25 obtains power to rotate, driving the first gear 24 fixedly connected to the electric rotating rod 25. The second gear 26 rotates, and affected by the rotation of the second gear 26, the first gear 24 meshing with the second gear 26 obtains power to rotate, driving the body 14 fixedly connected to the rotating disk 22 to rotate. The personnel adjusts the position of the body 14 according to the patient's diseased part. After determining the optimal irradiation angle for the personnel, the personnel cuts off the power supply of the electric rotating rod 25 to stop the rotation of the first gear 24, and the rotation angle of the body 14 is fixed, and the adjustment is completed; the protective box 21 is a protective structure for the motor of the electric rotating rod 25, which is used to reduce the impact of external forces on the motor of the electric rotating rod 25 and extend the service life of the motor; because the electric rotating rod 25 is an electric drive structure, the motor operation will generate a lot of heat, and the heat dissipation window 27 is a filter structure used to filter impurities such as dust in the air without affecting the heat dissipation of the motor, so as to prevent dust from entering the protective box 21. Embodiment 2

[0044] See also Figure 1-4, the top of the protection box 21 is provided with an auxiliary component 3, and the auxiliary component 3 includes: a fixing rod 32, symmetrically arranged on the top of the protection box 21; a brush plate 31, arranged between the fixing rods 32; a collecting box 33, arranged on the outside of the protection box 21; a slider is symmetrically arranged on the outside of the brush plate 31, and a slide groove matching the slider of the brush plate 31 is arranged on the inside of the fixing rod 32; since the heat dissipation window 27 is a filter structure, dust and other impurities in the air are filtered, and dust accumulates on the heat dissipation window 27 after a long time, affecting In order to improve the heat dissipation efficiency of the heat dissipation window 27, an auxiliary component 3 is set; a person pulls the brush plate 31 rod to make the brush plate 31 slide on the inside of the fixed rod 32 using the outer slider, and the dust on the filter screen of the heat dissipation window 27 is brushed back and forth by the brush plate 31, so that the dust on the heat dissipation window 27 is brushed into the inside of the collection box 33, and the heat dissipation effect of the heat dissipation window 27 is restored, and the cleaning is completed. The collection box 33 is fixedly connected to the protective box 21 through a connecting plate, which is a detachable structure. When the collection box 33 is full of dust, the person can remove it, pour it out for cleaning, and then put it back and fix it for continued use after cleaning.

[0045] The outer side of the protective box 21 is symmetrically provided with an L-shaped plate that matches the base 12; the connecting structure is fixed with bolts to fix the base 12 and the protective box 21, which is convenient for personnel to install and disassemble; a rotating rod is provided on the outer side of the second gear 26, and a rotating groove that matches the rotating rod of the second gear 26 is provided on the inner side of the fixed frame 11; the connecting structure fixes the position of the second gear 26 without affecting the rotation of the second gear 26; a connecting disk 23 that matches the rotating disk 22 is provided on the outer side of the body 14; a locking structure that fixes the body 14 and the rotating disk 22, which is convenient for personnel to install and disassemble; a rotating plate is provided on the outer side of the rotating disk 22, and a ring groove that matches the rotating plate of the rotating disk 22 is provided on the inner side of the fixed frame 11; the connecting structure improves the connectivity between the rotating disk 22 and the fixed frame 11 without affecting the rotation of the rotating disk 22.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A linear accelerator fixing device, comprising an accelerator assembly (1), wherein the accelerator assembly (1) comprises: A base (12) having a fixed frame (11) disposed on the top thereof; An adjustment component (2) is arranged inside the fixed frame (11); A machine body (14) is arranged outside the adjusting component (2) and is rotationally connected to the adjusting component (2); A treatment head (13), arranged at the bottom of the treatment head (13); Characterized in that: the regulating component (2) comprises: A protection box (21) is arranged outside the fixed frame (11); An electric rotating rod (25) is arranged inside the protection box (21), and the electric rotating rod (25) passes through the fixed frame (11); A second gear (26) is disposed inside the fixed frame (11) and is fixedly connected to the electric rotating rod (25); a first gear (24) disposed inside the fixed frame (11) and meshingly connected with the second gear (26); A rotating disk (22) is disposed between the fixed frame (11) and the machine body (14), and is fixedly connected to the first gear (24); The heat dissipation window (27) is arranged inside the protection box (21).

2. A linear accelerator fixing device according to claim 1, characterized in that: An auxiliary component (3) is arranged on the top of the protection box (21), and the auxiliary component (3) comprises: A fixing rod (32) symmetrically arranged on the top of the protection box (21); A brush plate (31) is arranged between the fixing rods (32); The collection box (33) is arranged outside the protection box (21).

3. A linear accelerator fixing device according to claim 2, characterized in that: Slide blocks are symmetrically arranged on the outside of the brush plate (31), and a sliding groove matching the slide block of the brush plate (31) is arranged on the inside of the fixing rod (32).

4. The linear accelerator fixing device according to claim 1, characterized in that: An L-shaped plate matching the base (12) is symmetrically arranged on the outer side of the protection box (21).

5. A linear accelerator fixing device according to claim 4, characterized in that: A rotating rod is arranged on the outer side of the second gear (26), and a rotating groove matching the rotating rod of the second gear (26) is arranged on the inner side of the fixed frame (11).

6. A linear accelerator fixing device according to claim 5, characterized in that: A connecting disk (23) matching the rotating disk (22) is arranged on the outside of the machine body (14).

7. A linear accelerator fixing device according to claim 6, characterized in that: A rotating plate is arranged on the outer side of the rotating disk (22), and an annular groove matching the rotating plate of the rotating disk (22) is arranged on the inner side of the fixed frame (11).

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