A particle beam distribution device for tumor treatment

Abstract

The present invention relates to the technical field of particle beam distribution, and in particular to a particle beam distribution device for tumor treatment, comprising an equipment base, on which a particle emitter is mounted, a fixed base being fixedly connected to the bottom of the equipment base, a pushing mechanism being rotatably connected to the movable base, a protective cover being rotatably connected to the pushing mechanism, a rotating frame being rotatably connected to the protective cover, and an automatic maintenance mechanism being rotatably connected to the rotating frame. After the particle emitter is used, the protective cover can be arranged to cover the outside of an emission end of the particle emitter. At the same time, a support rod group and a pushing mechanism can realize automatic storage and cover of the protective cover to the outside of the emission end of the particle emitter, effectively preventing unintentional contact and avoiding safety hazards. The shielding helps prevent dust, moisture and other external contaminants from entering the equipment, thereby extending the service life. The automatic storage mechanism ensures that the protective cover does not affect the use of the particle emitter.

Description

Technical Field

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

[0002] Particle beam distribution devices are primarily used in cancer treatment for particle therapies such as proton therapy and heavy ion therapy. These devices precisely direct the particle beam to the tumor site to maximize cancer cell destruction while minimizing damage to surrounding healthy tissue. Here are some key components and how they work:

[0003] 1. Equipment composition

[0004] Particle accelerator: used to produce high-energy particles (such as protons or heavy ions). Common accelerators include cyclotrons and linear accelerators. Beam transport system: includes a series of magnets and vacuum tubes 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: distributes the particle beam to multiple treatment heads or multiple patient positions according to different treatment needs to ensure that each treatment area receives the appropriate dose. Dose adjustment system: includes an energy regulator and a scattering device to control the energy and dose distribution of the particle beam so that it has the best therapeutic effect when it reaches the tumor.

[0005] 2. Working Principle

[0006] Particles enter the Gantry at different angles and are incident on different composite magnets. Each composite magnet ultimately converges the incoming particles at different angles into a single area. This area represents the lesion. Targeted therapy: The particle beam can precisely strike tumor cells, leveraging the high LET (linear energy transfer) properties of protons or heavy ions to enhance their lethality.

[0007] During use, existing particle beam distribution devices are affected by the working environment and lack protection on the outside of the existing equipment, resulting in dust and other particles adhering to the surface of the device when the device is not in use. Dust particles may cause the particle beam to scatter, thereby reducing the quality and concentration of the beam and affecting the ability of particles to accurately reach the tumor area. Particles may experience energy loss when passing through the dust layer, which may result in insufficient energy when the particle beam 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, causing damage to the device or safety hazards.

[0008] In summary, the prior art lacks a technology for automatically protecting a particle beam distribution device when 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 objectives, the technical solution adopted by the present invention is: a particle beam distribution device for tumor treatment, comprising an equipment base, a particle emission base installed on the equipment base, a fixed base fixedly connected to the bottom of the equipment base, two strut groups rotatably connected to the fixed base, a movable base rotatably connected to the strut group, a pushing mechanism rotatably connected to the movable base, a protective cover rotatably connected to the pushing mechanism, a rotating frame rotatably connected to the protective cover, and an automatic maintenance mechanism rotatably connected to the rotating frame.

[0011] Preferably, the top of the strut group is rotatably connected to the movable seat through a hinge seat, a worm gear is fixedly connected to the top of the strut group, a worm is meshingly provided on one side of the worm gear, the worm is rotatably connected to the movable seat, an adjusting wheel is fixedly provided at one end of the worm, a rotating shaft is fixedly provided at 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 fixedly connected to the motor A, and both ends of the bidirectional screw rod are threadedly connected to the adjustment block, and 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, the outer end of the transmission tube is connected and fixedly provided with a motor B, the motor B is connected and fixedly provided with the protective cover, an annular rack is connected and fixedly provided with the inner wall of the protective cover, a cover plate is slidingly provided at the top of the protective cover, a spring A is connected and fixedly provided at both ends of the cover plate, the other end of the spring A is fixedly provided with the inner wall of the protective cover, a baffle is slidingly 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 provided at one end of the rotating frame, and the sliding rod is slidingly fitted with the inner wall of the transmission tube. A tension spring is fixedly provided at the inner end of the sliding rod, and the other end of the tension spring is fixedly provided with 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 limit block is slidingly fitted on the inner wall of one end of the transmission sleeve rod. A spring B is fixedly connected to the inner end of the limit 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 into the outer wall of 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, and the top of the transmission sleeve is in movably contact with the limit block.

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

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

[0020] 1. After the particle emitter is used, a protective cover can be set up to cover the outside of the particle emitter. At the same time, the support rod group and the pushing mechanism can realize the automatic storage of the protective cover and cover the outside of the particle emitter, which can effectively prevent unintentional contact and avoid safety hazards. The shielding helps to prevent dust, moisture and other external contaminants from entering the equipment, extending the service life. The automatic storage mechanism ensures that the protective cover does not affect the use of the particle emitter.

[0021] 2. By arranging a rotating frame and an automatic maintenance mechanism in the protective cover, when the protective cover is placed on the outside of the particle emitter, the rotating frame will rotate under the drive of motor B, so that the cleaning cotton belt will automatically wipe the outside of the emission end of the particle emitter. At the same time, under the action of the annular rack, one of the transmission sleeves will be driven to rotate, and the used cleaning cotton belt will be rolled up and the clean cleaning cotton belt will be pulled out for cleaning. This can reduce the accumulation of dust and pollutants, ensure the good condition of the particle emitter, extend the service life of the equipment, and reduce the risk of failure due to contamination by keeping the equipment clean, thereby improving the reliability of the system.

[0022] 3. By setting a baffle on the protective cover, when the protective cover is folded, the baffle can block the opening of the protective cover to prevent dust from entering the protective cover and keep the interior clean. By setting a retractable cover on the protective cover, it is convenient to replace the cleaning cotton belt. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 This is a 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 This is a schematic cross-sectional view of the protective cover and other structures of a particle beam distribution device for tumor treatment according to the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of a strut group of a particle beam distribution device for tumor treatment according to the present invention;

[0027] Figure 5 This is a schematic structural diagram of a driving mechanism of a particle beam distribution device for tumor treatment according to the present invention;

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

[0029] Figure 7 This is a schematic diagram of the structure of a turret of a particle beam distribution device for tumor treatment according to the present invention;

[0030] Figure 8 This is a schematic diagram of the expanded structure of an automatic maintenance mechanism of a particle beam distribution device for tumor treatment according to the present invention;

[0031] Figure 9 The present invention is a particle beam distribution device for tumor treatment Figure 8 A magnified schematic diagram of the structure in the middle.

[0032] 1. Equipment seat; 2. Particle emission seat; 3. Fixed seat; 4. Strut group; 5. Moving seat; 6. Propelling 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. Bidirectional screw; 602. Motor A; 603. Adjusting block; 604. Push rod; 605. Adjusting rack; 701. Transmission tube; 702. Motor B; 703. Ring rack; 704. Cover plate; 705. Spring A; 706. Baffle; 801. Sliding rod; 802. Tension spring; 901. Transmission sleeve rod; 902. Limit block; 903. Spring B; 904. Transmission sleeve; 905. Cleaning cotton belt; 906. Universal joint; 907. Telescopic rod; 908. Transmission wheel. DETAILED DESCRIPTION

[0033] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive 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, two strut groups 4 are rotatably connected to the fixed base 3, 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 end of the support rod group 4 is rotatably connected to the movable seat 5 via a hinge seat 405. A worm gear 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 gear 401. The worm 402 is rotatably connected to the movable seat 5. An adjustment wheel 403 is fixedly connected to one end of the worm 402. A rotating shaft 404 is fixedly connected to the bottom end of the support rod group 4. The rotating shaft 404 is rotatably connected to the fixed seat 3. The adjustment rack 605 drives the adjustment wheel 403 to rotate, which in turn 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, causing the movable seat 5 to move upward, so that the protective cover 7 is aligned with the particle emission seat 2.

[0036] like Figure 5 As shown, the propulsion mechanism 6 includes a bidirectional screw 601, which is rotatably connected to the movable base 5. One end of the bidirectional screw 601 is fixedly connected to a motor A602. Adjustment blocks 603 are threadedly connected to both ends of the bidirectional screw 601. A push rod 604 is rotatably connected to the adjustment blocks 603. The other end of the push rod 604 is rotatably connected to the protective cover 7. Motor A602 drives the bidirectional screw 601 to rotate, causing the screw 601 to move the two adjustment blocks 603, which in turn move the adjustment rack 605. As the adjustment blocks 603 continue to move, the push rod 604 drives the protective cover 7 toward and covers the emission end of the particle emission base 2.

[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 fit the outer wall of the particle emitter 2. A transmission tube 701 is rotatably connected to one side of the protective cover 7. A motor B702 is fixedly mounted on the outer end of the transmission tube 701. Motor B702 is fixedly mounted to the protective cover 7. A ring rack 703 is fixedly mounted on the inner wall of the protective cover 7. A cover plate 704 is slidably mounted on the top of the protective cover 7. Springs A705 are fixedly mounted on both ends of the cover plate 704. The other end of the spring A705 is fixedly mounted to the inner wall of the protective cover 7. A baffle 706 is slidably mounted at the opening of the protective cover 7. The bottom end of the baffle 706 is in movable contact with the fixed base 3. The transmission tube 701 is rotated by the motor B702, which in turn rotates the turret 8 connected to the sliding rod 801. The turret 8 then drives the cleaning cotton strip 905 to rotate around the emission end of the particle emitter 2 to clean it. The spring A705 automatically closes the cover plate 704.

[0039] like Figure 7 As shown, a sliding rod 801 is fixedly provided at one end of the rotating frame 8, and the sliding rod 801 is slidingly fitted with the inner wall of the transmission tube 701. A tension spring 802 is fixedly provided at the inner end of the sliding rod 801, and the other end of the tension spring 802 is fixedly provided with the inner wall of the transmission tube 701.

[0040] like Figure 8 、 Figure 9 As shown, the automatic maintenance mechanism 9 includes a transmission sleeve 901, which is rotatably connected to the rotating frame 8. A limit block 902 is slidably provided on the inner wall of one end of the transmission sleeve 901. A spring B903 is fixedly connected to the inner end of the limit block 902, and the other end of the spring B903 is fixedly connected to the inner wall of the transmission sleeve 901. When the cleaning cotton strip 905 is used and needs to be replaced, the cover 704 is opened and the limit block 902 is retracted into the transmission sleeve 901, so that the transmission sleeve 904 can be removed. A new transmission sleeve 904 is inserted into the transmission sleeve 901, and then the spring B903 drives the limit block 902 to limit the transmission sleeve 904 for use.

[0041] A transmission sleeve 904 is movably connected to the outer wall of the transmission sleeve rod 901, and 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, and the top of the transmission sleeve 904 is in movably contact with the limit block 902.

[0042] A universal joint 906 is fixedly provided at the bottom end of one of the transmission sleeve rods 901, and a telescopic rod 907 is fixedly provided at the other end of the universal joint 906. The telescopic rod 907 is rotatably connected to the rotating frame 8, and a transmission wheel 908 is fixedly provided at the other end of the telescopic rod 907. The transmission wheel 908 is meshed with the annular rack 703 for transmission. Under the action of the annular rack 703, the transmission wheel 908 rotates, and the transmission wheel 908 drives the connected telescopic rod 907 to rotate, so that the telescopic rod 907 drives the transmission sleeve rod 901 connected to the universal joint 906 to rotate, and the transmission sleeve rod 901 drives the transmission sleeve 904 to rotate, so that the used cleaning cotton strip 905 is wound up and a new cleaning cotton strip 905 is pulled out for further use.

[0043] Working principle: When the particle emitter 2 is needed, particles enter the particle emitter 2 at different angles and are incident on different composite magnets. Each composite magnet will eventually collect the incoming particles at different angles into one area, which is the lesion. This application does not require rotating parts, but can allow particles incident at different angles to eventually reach the lesion at different angles. It has the advantages of small size and light weight.

[0044] After use, the motor A602 is used to drive the bidirectional screw 601 to rotate, so that the bidirectional screw 601 drives the two adjustment blocks 603 to move. At this time, the adjustment blocks 603 drive the adjustment rack 605 to move, so that the adjustment rack 605 drives the adjustment wheel 403 to rotate, so that the adjustment 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 wheel 401 to rotate, so that the movable seat 5 moves up, so that 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, and then when the adjustment block 603 continues to move, the push rod 604 drives the protective cover 7 to approach and cover the emission end of the particle emission seat 2;

[0046] When the emission end of the particle emission seat 2 contacts the cleaning cotton tape 905, the tension spring 802 will keep the cleaning cotton tape 905 always attached to the emission end of the particle emission seat 2, and then the motor B702 will drive the connected transmission tube 701 to rotate, so that the transmission tube 701 will drive the rotating frame 8 connected to the sliding rod 801 to rotate, so that the rotating frame 8 will drive the cleaning cotton tape 905 to rotate at the emission end of the particle emission seat 2 to clean it;

[0047] At the same time, under the action of the annular rack 703, the transmission wheel 908 rotates, and the transmission wheel 908 drives the connected telescopic rod 907 to rotate, so that the telescopic rod 907 drives the transmission sleeve rod 901 connected to the universal joint 906 to rotate, and the transmission sleeve rod 901 drives the transmission sleeve 904 to rotate, so that the used cleaning cotton belt 905 is rolled up and a new cleaning cotton belt 905 is pulled out for continued use;

[0048] When the cleaning cotton belt 905 needs to be replaced after use, pull open the cover 704 and retract the limit block 902 into the transmission sleeve rod 901 so that the transmission sleeve 904 can be removed. Insert the new transmission sleeve 904 into the transmission sleeve rod 901, and then the spring B903 will drive the limit block 902 to limit the transmission sleeve 904.

[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 to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed 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 fixed with a fixed seat (3), the fixed seat (3) is rotatably connected with two support rod groups (4), the support rod group (4) is rotatably connected with a moving seat (5), the moving seat (5) is rotatably connected with a pushing mechanism (6), the pushing mechanism (6) comprises a bidirectional screw rod (601), the bidirectional screw rod (601) and the moving seat (5) are rotatably connected, one end of the bidirectional screw rod (601) is connected and fixed with a motor A (602), both ends of the bidirectional screw rod (601) are threadedly connected with an adjusting block (603), the adjusting block (603) is rotatably connected with a push rod (604), the other end of the push rod (604) is rotatably connected with a protective cover (7), the pushing mechanism (6) is rotatably connected with a protective cover (7), the protective cover (7) is opened. The inner wall of the opening is adapted to the outer wall of the particle emission seat (2); a transmission tube (701) is provided on one side of the protective cover (7) for rotational connection; a motor B (702) is fixedly provided at the outer end of the transmission tube (701); the motor B (702) is fixedly provided with the protective cover (7); an annular rack (703) is fixedly provided on the inner wall of the protective cover (7); a cover plate (704) is provided at the top end of the protective cover (7) for sliding cooperation; a spring A (705) is fixedly provided at both ends of the cover plate (704); the other end of the spring A (705) is fixedly provided with the inner wall of the protective cover (7); a baffle (706) is provided at the opening of the protective cover (7) for sliding cooperation; the bottom end of the baffle (706) is provided for movable contact with the fixed seat (3); a rotating frame (8) is provided on the protective cover (7) for rotational connection; an automatic maintenance mechanism (9) is provided on the rotating frame (8) for rotational connection.

2. The 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 driven on one side of the worm wheel (401); the worm (402) and the movable seat (5) are connected and rotatably formed; an adjusting wheel (403) is fixedly connected to one end of the worm (402); a rotating shaft (404) is fixedly connected to the bottom end of the support rod group (4); and the rotating shaft (404) is rotatably connected to the fixed seat (3).

3. The particle beam distribution device for tumor treatment according to claim 2, 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.

4. The 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 slidingly 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).

5. 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 fixedly connected to the inner end of the limit block (902), and the other end of the spring B (903) being fixedly connected to the inner wall of the transmission sleeve rod (901).

6. The particle beam distribution device for tumor treatment according to claim 5, 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 in sliding contact with the outer wall of the particle emission seat (2), and the top of the transmission sleeve (904) is in movably contact with the limit block (902).

7. The particle beam distribution device for tumor treatment according to claim 6, characterized in that: The bottom end of one of the transmission sleeve rods (901) is connected and fixedly provided with a universal joint (906), the other end of the universal joint (906) is connected and fixedly provided with a telescopic rod (907), the telescopic rod (907) is rotatably connected to the rotating frame (8), the other end of the telescopic rod (907) is connected and fixedly provided with a transmission wheel (908), and the transmission wheel (908) is meshed with the annular rack (703) for transmission.

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