Particle beam distribution device for tumor treatment

Abstract

The invention relates to the technical field of particle beam distribution, in particular to a particle beam distribution device for tumor treatment, which comprises an equipment seat, a particle emission seat is mounted on the equipment seat, a fixed seat is fixedly connected to the bottom of the equipment seat, a pushing mechanism is rotatably connected to a moving seat, and a protective cover is rotatably connected to the pushing mechanism. The protective cover is rotatably connected with the rotating frame, the rotating frame is rotatably connected with the automatic maintenance mechanism, and after the particle launching seat is used, the protective cover can cover the outer side of the launching end of the particle launching seat; meanwhile, automatic storage of the protective cover can be achieved through the supporting rod set and the pushing mechanism, the protective cover covers the outer side of the emitting end of the particle emitting base, unintentional contact can be effectively prevented, potential safety hazards are avoided, dust, water and other external pollutants can be prevented from entering equipment through shielding, the service life is prolonged, and through the automatic storage mechanism, the service life is prolonged. And the use of the particle emission seat is not influenced by the protective cover.

Description

Technical Field

[0001] The present invention relates to the technical field of particle beam current distribution, and particularly to a particle beam current distribution device for tumor treatment. Background Art

[0002] Particle beam current distribution devices are mainly used in particle therapy for tumor treatment, such as proton therapy and heavy ion therapy. These devices can accurately direct the particle beam to the tumor location to maximize the killing of cancer cells while reducing damage to surrounding healthy tissues. The following are some key components and working principles:

[0003] 1. Device Composition

[0004] Particle accelerator: Used to generate high-energy particles (such as protons or heavy ions). Common accelerators include cyclotrons and linear accelerators. Beam transmission system: Consisting of a series of magnets and vacuum pipes, used to control and guide the particle beam. By adjusting the magnetic field, the direction and shape of the beam can be precisely controlled. Beam distributor: According to different treatment requirements, the particle beam is distributed to multiple treatment heads or multiple patient positions to ensure that each treatment area receives an appropriate dose. Dose regulation system: Including an energy regulator and a scattering device to control the energy and dose distribution of the particle beam so that it has the best treatment effect when reaching the tumor.

[0005] 2. Working Principle

[0006] Particles enter the Gantry at different angles and will be incident on different composite magnets. Each composite magnet will finally converge the entering particles at different angles into one area. This area is the lesion. Targeted therapy: The particle beam can accurately strike tumor cells, utilizing the high LET (linear energy transfer) characteristics of protons or heavy ions to enhance the killing power of tumor cells.

[0007] During the use of existing particle beam current distribution devices, due to the influence of the working environment, since there is a lack of protection on the outside of the existing devices, when the devices are not in use, dust and the like will adhere to the device surface. Dust particles may cause scattering of the particle beam, thereby reducing the quality and concentration of the beam, affecting the ability of the particles to accurately reach the tumor area. When the particles pass through the dust layer, they may experience energy loss, which may result in insufficient energy of the particle beam when it reaches the lesion, affecting the treatment effect. At the same time, when the device is not in use, there is a risk of non-professionals or patients accidentally touching the device, resulting in damage to the device or safety hazards.

[0008] In summary, in the prior art, there is a lack of technology for automatically protecting particle beam current distribution devices when they are not in use. Summary of the Invention

[0009] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a particle beam distribution device for tumor treatment.

[0010] To achieve the above purpose, the technical solution adopted by the present invention is: a particle beam distribution device for tumor treatment, including an equipment base, a particle emission base is installed on the equipment base, a fixed base is fixedly connected to the bottom of the equipment base, two strut groups are rotatably connected to the fixed base, a mobile base is rotatably connected to the strut group, a pushing mechanism is rotatably connected to the mobile base, a protective cover is rotatably connected to the pushing mechanism, a rotating frame is rotatably connected to the protective cover, and an automatic maintenance mechanism is rotatably connected to the rotating frame.

[0011] Preferably, the top end of the strut group is rotatably connected to the movable seat via a hinge seat, a worm wheel is fixedly connected to the top end of the strut group, a worm is meshingly provided on one side of the worm wheel, the worm is rotatably connected to the movable seat, an adjusting wheel is fixedly connected to one end of the worm, a rotating shaft is fixedly connected to the bottom end of the strut group, and the rotating shaft is rotatably connected to the fixed seat.

[0012] Preferably, the pushing mechanism includes a bidirectional screw rod, which is rotatably connected to the movable seat, one end of the bidirectional screw rod is connected and fixed with a motor A, both ends of the bidirectional screw rod are threadedly connected with an adjustment block, a push rod is rotatably connected to the adjustment block, and the other end of the push rod is rotatably connected to the protective cover.

[0013] Preferably, an adjusting rack is fixedly connected to the adjusting block, and the adjusting rack is meshed with the adjusting wheel for transmission.

[0014] Preferably, the inner wall of the opening of the protective cover is adapted to the outer wall of the particle emission seat, a transmission tube is rotatably connected to one side of the protective cover, a motor B is fixedly connected to the outer end of the transmission tube, the motor B is fixedly connected to the protective cover, an annular rack is fixedly connected to the inner wall of the protective cover, a cover plate is slidably provided at the top of the protective cover, springs A are fixedly connected at both ends of the cover plate, the other end of the spring A is fixedly connected to the inner wall of the protective cover, a baffle is slidably provided at the opening of the protective cover, and the bottom end of the baffle is movably contacted with the fixed seat.

[0015] Preferably, a sliding rod is fixedly connected to one end of the rotating frame, and the sliding rod is slidably matched with the inner wall of the transmission tube. A tension spring is fixedly connected to the inner end of the sliding rod, and the other end of the tension spring is fixedly connected to the inner wall of the transmission tube.

[0016] Preferably, the automatic maintenance mechanism includes a transmission sleeve rod, which is rotatably connected to the rotating frame. A limiting block is slidably fitted inside one end of the transmission sleeve rod. A spring B is fixedly connected to the inner end of the limiting block, and the other end of the spring B is fixedly connected to the inner wall of the transmission sleeve rod.

[0017] Preferably, a transmission sleeve is movably inserted outside the transmission sleeve rod. A cleaning cotton belt is fixedly connected between the two transmission sleeves. The cleaning cotton belt is in sliding contact with the outer wall of the particle emission seat. The top end of the transmission sleeve is in movable contact with the limiting block.

[0018] Preferably, a universal joint is fixedly connected to the bottom end of one of the transmission sleeve rods. The other end of the universal joint is fixedly connected to a telescopic rod. The telescopic rod is rotatably connected to the rotating frame. The other end of the telescopic rod is fixedly connected to a transmission wheel, and the transmission wheel is in meshing transmission with an annular rack.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. After the particle emission seat is used, by setting a protective cover, it can cover the outside of the emission end of the particle emission seat. At the same time, through the strut group and the pushing mechanism, the automatic storage of the protective cover and covering the outside of the emission end of the particle emission seat can be realized, which can effectively prevent accidental contact and avoid potential safety hazards. The shielding helps prevent dust, moisture and other external pollutants from entering the device, extending the service life. Through the automatic storage mechanism, the protective cover does not affect the use of the particle emission seat.

[0021] 2. By setting a rotating frame and an automatic maintenance mechanism inside the protective cover, when the protective cover is covered on the outside of the particle emission seat, driven by the motor B, the rotating frame will rotate, enabling the cleaning cotton belt to automatically wipe the outside of the emission end of the particle emission seat. At the same time, under the action of the annular rack, one of the transmission sleeves will be driven to rotate, winding up the used cleaning cotton belt and pulling out a clean cleaning cotton belt for cleaning. This can reduce the accumulation of dust and pollutants, ensure the good condition of the particle emission seat, extend the service life of the device, and reduce the risk of failures caused by pollution by keeping the device clean, thereby improving the reliability of the system.

[0022] 3. By setting a baffle on the protective cover, when the protective cover is retracted, the baffle can block the opening of the protective cover, preventing dust from entering the protective cover and keeping the inside clean. By setting a pullable cover plate on the protective cover, it is convenient to replace the cleaning cotton belt. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of a particle beam current distribution device for tumor treatment according to the present invention during use;

[0024] Figure 2 Schematic diagram of the overall structure of a particle beam distribution device for tumor treatment according to the present invention when not in use;

[0025] Figure 3 Schematic cross-sectional view of structures such as the protective cover of a particle beam distribution device for tumor treatment according to the present invention;

[0026] Figure 4 Schematic diagram of the structure of the support rod group of a particle beam distribution device for tumor treatment according to the present invention;

[0027] Figure 5 Schematic diagram of the structure of the driving mechanism of a particle beam distribution device for tumor treatment according to the present invention;

[0028] Figure 6 Schematic cross-sectional view of the structure of the protective cover of a particle beam distribution device for tumor treatment according to the present invention;

[0029] Figure 7 Schematic diagram of the structure of the rotating frame of a particle beam distribution device for tumor treatment according to the present invention;

[0030] Figure 8 Schematic unfolded view of the structure of the automatic maintenance mechanism of a particle beam distribution device for tumor treatment according to the present invention;

[0031] Figure 9 For a particle beam distribution device for tumor treatment according to the present invention Figure 8 Enlarged schematic view of the structure at position A in

[0032] 1. Equipment base; 2. Particle emission base; 3. Fixed base; 4. Support rod group; 5. Moving base; 6. Driving mechanism; 7. Protective cover; 8. Rotating frame; 9. Automatic maintenance mechanism; 401. Worm gear; 402. Worm; 403. Adjusting wheel; 404. Rotating shaft; 405. Hinge seat; 601. Bi-directional lead screw; 602. Motor A; 603. Adjusting block; 604. Push rod; 605. Adjusting rack; 701. Transmission pipe; 702. Motor B; 703. Ring gear; 704. Cover plate; 705. Spring A; 706. Baffle; 801. Sliding rod; 802. Tension spring; 901. Transmission sleeve rod; 902. Limiting block; 903. Spring B; 904. Transmission sleeve; 905. Cleaning cotton belt; 906. Universal joint; 907. Telescopic rod; 908. Transmission wheel. Detailed implementation manners

[0033] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0034] like Figures 1 - 9 A particle beam distribution device for tumor treatment shown in the figure includes an equipment base 1, on which a particle emission base 2 is installed, a fixed base 3 is fixedly connected to the bottom of the equipment base 1, the fixed base 3 is rotatably connected to two strut groups 4, a movable base 5 is rotatably connected to the strut group 4, a pushing mechanism 6 is rotatably connected to the movable base 5, a protective cover 7 is rotatably connected to the pushing mechanism 6, a rotating frame 8 is rotatably connected to the protective cover 7, and an automatic maintenance mechanism 9 is rotatably connected to the rotating frame 8.

[0035] like Figure 4 As shown, the top of the support rod group 4 is rotatably connected with the moving seat 5 through a hinge seat 405, a worm wheel 401 is fixedly connected to the top of the support rod group 4, a worm 402 is meshingly provided on one side of the worm wheel 401, the worm 402 is rotatably connected with the moving seat 5, an adjusting wheel 403 is fixedly connected to one end of the worm 402, a rotating shaft 404 is fixedly provided at the bottom of the support rod group 4, and the rotating shaft 404 is rotatably connected with the fixed seat 3. The adjusting rack 605 drives the adjusting wheel 403 to rotate, so that the adjusting wheel 403 drives the connected worm 402 to rotate, and at this time, the worm 402 drives the support rod group 4 connected to the worm wheel 401 to rotate, so that the moving seat 5 moves up, so that the protective cover 7 is aligned with the particle emission seat 2.

[0036] like Figure 5 As shown, the pushing mechanism 6 includes a bidirectional screw rod 601, which is rotatably connected to the moving seat 5, and one end of the bidirectional screw rod 601 is connected and fixed with a motor A602, and both ends of the bidirectional screw rod 601 are threadedly connected with an adjustment block 603, and a push rod 604 is rotatably connected to the adjustment block 603, and the other end of the push rod 604 is rotatably connected to the protective cover 7. The motor A602 drives the bidirectional screw rod 601 to rotate, so that the bidirectional screw rod 601 will drive the two adjustment blocks 603 to move, and at this time, the adjustment block 603 will drive the adjustment rack 605 to move. When the adjustment block 603 continues to move, it will drive the protective cover 7 to approach and cover the emission end of the particle emission seat 2 through the push rod 604.

[0037] An adjusting rack 605 is fixedly connected to the adjusting block 603 , and the adjusting rack 605 is meshed with the adjusting wheel 403 for transmission.

[0038] like Figure 6As shown, the inner wall of the opening of the protective cover 7 is adapted to the outer wall of the particle emission seat 2. One side of the protective cover 7 is provided with a transmission pipe 701 through rotation connection. The outer end of the transmission pipe 701 is fixedly connected with a motor B 702, and the motor B 702 is fixedly connected with the protective cover 7. The inner wall of the protective cover 7 is fixedly connected with an annular rack 703. The top end of the protective cover 7 is slidably fitted with a cover plate 704. Both ends of the cover plate 704 are fixedly connected with a spring A 705, and the other end of the spring A 705 is fixedly connected with the inner wall of the protective cover 7. A baffle 706 is slidably fitted at the opening of the protective cover 7, and the bottom end of the baffle 706 is in movable contact with the fixed seat 3. The connected transmission pipe 701 is driven to rotate by the motor B 702, so that the transmission pipe 701 drives the rotating frame 8 connected to the sliding rod 801 to rotate, and the rotating frame 8 drives the cleaning cotton belt 905 to rotate at the emission end of the particle emission seat 2 to clean it. The spring A 705 realizes the automatic closing of the cover plate 704.

[0039] As Figure 7 shown, one end of the rotating frame 8 is fixedly connected with a sliding rod 801. The sliding rod 801 is slidably fitted through the inner wall of the transmission pipe 701. The inner end of the sliding rod 801 is fixedly connected with a tension spring 802, and the other end of the tension spring 802 is fixedly connected with the inner wall of the transmission pipe 701.

[0040] As Figure 8 、 Figure 9 shown, the automatic maintenance mechanism 9 includes a transmission sleeve rod 901. The transmission sleeve rod 901 is rotatably connected with the rotating frame 8. One end of the inner wall of the transmission sleeve rod 901 is slidably fitted with a limit block 902. The inner end of the limit block 902 is fixedly connected with a spring B 903, and the other end of the spring B 903 is fixedly connected with the inner wall of the transmission sleeve rod 901. When the cleaning cotton belt 905 needs to be replaced after use, the cover plate 704 is pulled open, the limit block 902 is retracted into the transmission sleeve rod 901, so that the transmission sleeve 904 can be removed. A new transmission sleeve 904 is inserted onto the transmission sleeve rod 901, and then the spring B 903 drives the limit block 902 to limit the transmission sleeve 904 for use.

[0041] A transmission sleeve 904 is movably inserted on the outer wall of the transmission sleeve rod 901. A cleaning cotton belt 905 is fixedly connected between the two transmission sleeves 904. The cleaning cotton belt 905 is in sliding contact with the outer wall of the particle emission seat 2. The top end of the transmission sleeve 904 is in movable contact with the limit block 902.

[0042] One end of a transmission sleeve rod 901 is fixedly connected with a universal joint 906, the other end of the universal joint 906 is fixedly connected with a telescopic rod 907, the telescopic rod 907 is rotationally connected with a rotating frame 8, the other end of the telescopic rod 907 is fixedly connected with a transmission wheel 908, and the transmission wheel 908 is meshed and driven with an annular rack 703. Under the action of the annular rack 703, the transmission wheel 908 will rotate. At this time, the transmission wheel 908 will drive the connected telescopic rod 907 to rotate, so that the telescopic rod 907 drives the transmission sleeve rod 901 connected by the universal joint 906 to rotate, so that the transmission sleeve rod 901 drives the transmission sleeve 904 to rotate, winds up the used cleaning cotton belt 905, and pulls out a new cleaning cotton belt 905 for continuous use.

[0043] Working principle: When the particle emission seat 2 needs to be used, particles enter the particle emission seat 2 at different angles and will be incident on different composite magnets. Each composite magnet will finally converge the particles entering at different angles into a region, and this region is the lesion. This application does not use rotating parts, but can make the particles incident at different angles finally reach the lesion at different angles. It has the advantages of small volume and light weight.

[0044] After use, the motor A 602 is used to drive the bidirectional lead screw 601 to rotate, so that the bidirectional lead screw 601 drives two adjusting blocks 603 to move. At this time, the adjusting blocks 603 drive the adjusting rack 605 to move, so that the adjusting rack 605 drives the adjusting wheel 403 to rotate, so that the adjusting wheel 403 drives the connected worm 402 to rotate. At this time, the worm 402 drives the support rod group 4 connected to the worm gear 401 to rotate, so that the moving seat 5 moves upward, and the protective cover 7 is aligned with the particle emission seat 2.

[0045] At this time, the baffle 706 on the protective cover 7 automatically moves downward under its own weight. Then, when the adjusting block 603 continues to move, it will drive the protective cover 7 to approach and cover the emission end of the particle emission seat 2 through the push rod 604.

[0046] When the emission end of the particle emission seat 2 contacts the cleaning cotton belt 905, the tension spring 802 will make the cleaning cotton belt 905 always stick to the emission end of the particle emission seat 2. Then, the motor B 702 is used to drive the connected transmission pipe 701 to rotate, so that the transmission pipe 701 drives the rotating frame 8 connected to the sliding rod 801 to rotate, so that the rotating frame 8 drives the cleaning cotton belt 905 to rotate at the emission end of the particle emission seat 2 to clean it.

[0047] Meanwhile, under the action of the annular rack 703, the transmission wheel 908 will rotate. At this time, the transmission wheel 908 will drive the connected telescopic rod 907 to rotate, so that the telescopic rod 907 drives the transmission sleeve rod 901 connected by the universal joint 906 to rotate, so that the transmission sleeve rod 901 drives the transmission sleeve 904 to rotate, and the used cleaning cotton belt 905 is wound up, and the new cleaning cotton belt 905 is pulled out for continuous use;

[0048] When the cleaning cotton belt 905 needs to be replaced after use, the cover plate 704 is pulled open, and the limiting block 902 is retracted into the transmission sleeve rod 901, so that the transmission sleeve 904 can be removed. The new transmission sleeve 904 is inserted onto the transmission sleeve rod 901, and then the spring B903 will drive the limiting block 902 to limit the transmission sleeve 904 for use.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A particle beam distribution device for tumor treatment, comprising a device base (1), characterized in that: The device seat (1) is provided with a particle emission seat (2); the bottom of the device seat (1) is connected and fixedly provided with a fixed seat (3); the fixed seat (3) is rotatably connected with two strut groups (4); the strut groups (4) are rotatably provided with a movable seat (5); the movable seat (5) is rotatably provided with a pushing mechanism (6); the pushing mechanism (6) is rotatably provided with a protective cover (7); the protective cover (7) is rotatably provided with a rotating frame (8); the rotating frame (8) is rotatably provided with an automatic maintenance mechanism (9).

2. A particle beam distribution device for tumor treatment according to claim 1, characterized in that: The top end of the support rod group (4) is rotatably connected to the movable seat (5) via a hinge seat (405); a worm wheel (401) is fixedly connected to the top end of the support rod group (4); a worm (402) is meshingly provided on one side of the worm wheel (401); the worm (402) and the movable seat (5) are rotatably connected through the worm wheel (402); an adjusting wheel (403) is fixedly provided at one end of the worm (402); a rotating shaft (404) is fixedly provided at the bottom end of the support rod group (4); and the rotating shaft (404) is rotatably connected to the fixed seat (3).

3. A particle beam distribution device for tumor treatment according to claim 1, characterized in that: The pushing mechanism (6) comprises a bidirectional screw rod (601), the bidirectional screw rod (601) and the movable seat (5) are rotatably connected, one end of the bidirectional screw rod (601) is connected and fixedly provided with a motor A (602), both ends of the bidirectional screw rod (601) are threadedly connected with an adjustment block (603), a push rod (604) is rotatably connected to the adjustment block (603), and the other end of the push rod (604) is rotatably connected to the protective cover (7).

4. A particle beam distribution device for tumor treatment according to claim 3, characterized in that: An adjusting rack (605) is fixedly connected to the adjusting block (603), and the adjusting rack (605) is meshed with the adjusting wheel (403) for transmission.

5. The particle beam distribution device for tumor treatment according to claim 1, characterized in that: The inner wall of the opening of the protective cover (7) is matched with the outer wall of the particle emission seat (2); a transmission tube (701) is rotatably connected to one side of the protective cover (7); a motor B (702) is fixedly connected to the outer end of the transmission tube (701); the motor B (702) is fixedly connected to the protective cover (7); an annular rack (703) is fixedly connected to the inner wall of the protective cover (7); a cover plate (704) is slidably matched with the top of the protective cover (7); springs A (705) are fixedly connected to both ends of the cover plate (704); the other end of the spring A (705) is fixedly connected to the inner wall of the protective cover (7); a baffle (706) is slidably matched with the opening of the protective cover (7); the bottom end of the baffle (706) is movably contacted with the fixed seat (3).

6. A particle beam distribution device for tumor treatment according to claim 1, characterized in that: A sliding rod (801) is fixedly connected to one end of the rotating frame (8), and the sliding rod (801) is slidably matched with the inner wall of the transmission tube (701). A tension spring (802) is fixedly connected to the inner end of the sliding rod (801), and the other end of the tension spring (802) is fixedly connected to the inner wall of the transmission tube (701).

7. The particle beam distribution device for tumor treatment according to claim 1, characterized in that: The automatic maintenance mechanism (9) comprises a transmission sleeve rod (901), the transmission sleeve rod (901) being rotatably connected to the rotating frame (8), a limit block (902) being slidably matched with the inner wall of one end of the transmission sleeve rod (901), a spring B (903) being connected and fixedly arranged at the inner end of the limit block (902), and the other end of the spring B (903) being connected and fixedly arranged to the inner wall of the transmission sleeve rod (901).

8. A particle beam distribution device for tumor treatment according to claim 7, characterized in that: The outer wall of the transmission sleeve rod (901) is movably connected with a transmission sleeve (904), and a cleaning cotton belt (905) is fixedly connected between the two transmission sleeves (904). The cleaning cotton belt (905) is arranged in sliding contact with the outer wall of the particle emission seat (2), and the top of the transmission sleeve (904) is arranged in movably contact with the limit block (902).

9. A particle beam distribution device for tumor treatment according to claim 8, characterized in that: A universal joint (906) is fixedly connected to the bottom end of one of the transmission sleeve rods (901), a telescopic rod (907) is fixedly connected to the other end of the universal joint (906), the telescopic rod (907) is rotatably connected to the rotating frame (8), a transmission wheel (908) is fixedly connected to the other end of the telescopic rod (907), and the transmission wheel (908) is meshed with the annular rack (703) for transmission.

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