Medical linear accelerator light field and radiation field verification device

Abstract

The utility model discloses a medical linear accelerator light field and radiation field verification device, which belongs to the field of medical instruments and is characterized in that one side of a treatment bed is provided with a moving track, the moving track is slidably provided with a verification device, the verification device comprises a lifting cylinder and a supporting platform arranged on the lifting cylinder, and a sliding groove is formed in the supporting platform; a detection platform is arranged in the sliding groove in a sliding mode, a driving rack is arranged on the side edge of the detection platform, a gear containing groove communicated with the sliding groove is formed in the bottom face of the supporting platform, a driving motor is arranged below the supporting platform, and the output end of the driving motor is provided with a driving gear located in the gear containing groove and meshed with the driving rack. The clamping platform is rotationally arranged above the detection platform, the clamps are arranged at the two ends of the clamping platform, mounting and dismounting can be achieved only by aligning the detection platform to the sliding grooves, the structure is simple, dismounting is convenient, meanwhile, due to the design of transverse movement, the limited medical space is reasonably utilized, and the space around the treatment bed is wider.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medical linear accelerator optical field radiation field verification device. Background Technology

[0002] An electron linear accelerator is a medical device that uses microwave electromagnetic fields to accelerate electrons and creates a linear motion trajectory. It is used for radiotherapy of tumors or other lesions in patients. Such high-precision medical devices require frequent maintenance during use.

[0003] Traditional medical linear accelerator optical field verification devices use test paper that is placed on a treatment bed, which is prone to damage and wrinkling and cannot be laid completely flat, resulting in errors when testing positional accuracy.

[0004] The existing publication number CN218129602U discloses a medical linear accelerator optical field radiation field verification device. It has moving tracks and fixed plates installed on both sides of the treatment bed. The tracks on both sides occupy a lot of medical space and affect the convenience of patients getting on the treatment bed. In addition, the existing technology uses two fixed plates to clamp the horizontal plate, and the moving tracks and lifting cylinders do not have a space to move to both sides, making it difficult to disassemble and install the horizontal plate. Utility Model Content

[0005] The purpose of this invention is to provide a medical linear accelerator optical field radiation field verification device, which solves the problems of existing technology where the installation of tracks on both sides takes up medical space, affects the convenience of patients getting on the treatment bed, and the horizontal plate is held by two fixed plates, and the moving track and lifting cylinder do not have a space to move to both sides, making the disassembly and installation of the horizontal plate difficult.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a medical linear accelerator optical field radiation field verification device, comprising a cabinet, a frame movably mounted on the cabinet, a collimator mounted on the frame, and a treatment bed located below the collimator. A moving track is provided on one side of the treatment bed, and a verification device is slidably mounted on the moving track. The verification device includes a lifting cylinder and a support platform mounted on the lifting cylinder. A sliding groove is provided within the support platform, and a detection platform is slidably mounted within the sliding groove. A drive rack is provided on the side of the detection platform. A gear receiving groove communicating with the sliding groove is provided on the bottom surface of the support platform. A drive motor is provided below the support platform, and a drive gear located within the gear receiving groove and meshing with the drive rack is provided at the output end of the drive motor. A clamping platform is rotatably mounted above the detection platform, and clamps are provided at both ends of the clamping platform.

[0007] Furthermore, the sliding groove is provided with a T-shaped guide rail, and the detection platform is provided with a guide groove that cooperates with the T-shaped guide rail.

[0008] Furthermore, the clamping platform includes a rotating shaft, a first clamping platform, a second clamping platform, and an extension slide rod. The rotating shaft is rotatably disposed at one end above the support platform, one end of the bottom surface of the first clamping platform is disposed on the rotating shaft, and the second clamping platform is slidably connected to the first clamping platform through the extension slide rod.

[0009] Furthermore, the second clamping platform has an ear plate at one end away from the rotating shaft, and a support foot is threaded onto the ear plate.

[0010] Furthermore, the support platform has a fixing groove on the side near the ear plate.

[0011] Furthermore, a rotating platform is movably connected to the bottom surface of the treatment bed, and a base is installed on the bottom surface of the rotating platform.

[0012] Furthermore, the clamp includes two fixed bases, a cylinder, a clamp housing, and grippers. The two fixed bases are symmetrically arranged on the first clamping platform and the second clamping platform, respectively. The cylinder is located on the fixed base. The clamp housing is located on the side of the fixed base near the output end of the cylinder. The grippers are slidably disposed within the clamp housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The sliding groove of the support platform of this utility model is a sliding groove with open ends. When the testing platform needs to be replaced, it can be installed and disassembled simply by aligning the testing platform with the sliding groove. The structure is simple and the disassembly is convenient.

[0015] 2. The detection platform of this utility model is slidably connected to the support platform located on the lifting cylinder. Through the cooperation of the drive motor, drive gear and drive rack, the detection platform can automatically move left and right laterally. By driving the lateral movement of the detection platform, the detection platform can be positioned above the treatment bed to verify the light field radiation field and can be moved away from the treatment bed without interfering with the patient lying on the treatment bed. This laterally movable design allows the detection platform to be moved away when not in use, making reasonable use of the limited medical space and making the space around the treatment bed more open. At the same time, it also ensures that different devices (detection platform and treatment bed) in the whole treatment area can coordinate and cooperate without interfering with each other, thus optimizing the overall medical environment layout.

[0016] 3. A clamping platform is rotatably mounted on the support platform. The clamping platform is equipped with clamps. The clamping platform can be rotated so that it is laterally positioned on the treatment bed. This allows it to clamp the devices used for testing the treatment bed, preventing the devices from being fixed to the treatment bed and causing poor testing accuracy. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a medical linear accelerator optical field radiation field verification device according to this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of the verification device of this utility model;

[0020] Figure 3 This is a front view of the support platform of this utility model;

[0021] Figure 4 This is a schematic diagram of the clamping platform of this utility model;

[0022] Figure 5 This is a schematic diagram of the fixture of this utility model.

[0023] In the diagram: 1 Cabinet, 2 Frame, 3 Collimator, 4 Treatment Bed, 41 Rotary Table, 42 Base, 5 Moving Rail, 6 Verification Device, 61 Lifting Cylinder, 62 Support Platform, 621 Gear Receiving Slot, 622 Guide Slot, 623 Fixing Slot, 624 Sliding Slot, 64 Detection Platform, 65 Drive Rack, 66 Drive Motor, 67 Drive Gear, 68 T-shaped Guide Rail, 7 Clamping Platform, 71 Rotating Shaft, 72 First Clamping Platform, 73 Second Clamping Platform, 74 Extension Slide Rod, 75 Ear Plate, 76 Support Leg, 8 Fixture, 81 Fixed Base, 82 Cylinder, 83 Fixture Housing, 84 Grippers. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0025] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0026] like Figures 1 to 5As shown, this utility model provides a medical linear accelerator optical field radiation field verification device 6, including a cabinet 1, a frame 2 movably mounted on the cabinet 1, a collimator 3 mounted on the frame 2, and a treatment bed 4 located below the collimator 3. A moving track 5 is provided on one side of the treatment bed 4, and the verification device 6 is slidably mounted on the moving track 5. The verification device 6 includes a lifting cylinder 61 and a support platform 62 mounted on the lifting cylinder 61. A sliding groove 624 is formed in the support platform 62. A detection platform 64 is slidably disposed within the moving groove 624. A drive rack 65 is disposed on the side of the detection platform 64. A gear receiving groove 621 communicating with the sliding groove 624 is provided on the bottom surface of the support platform 62. A drive motor 66 is disposed below the support platform 62. A drive gear 67 located in the gear receiving groove 621 and meshing with the drive rack 65 is disposed at the output end of the drive motor 66. A clamping platform 7 is rotatably disposed above the detection platform 64. Clamps are provided at both ends of the clamping platform 7.

[0027] Cabinet 1, rack 2, collimator 3, and treatment bed 4 located below collimator 3 are all structural components of a linear accelerator used in practical applications. An electron linear accelerator is a medical device that uses microwave electromagnetic fields to accelerate electrons and has a linear motion trajectory for radiotherapy of tumors or other lesions in patients. A movable track 5 is installed on one side of the treatment bed 4 along its length. A sliding slider is mounted on the movable track 5. A lifting cylinder 61 is mounted on the slider. A support platform 62 is provided at the top of the lifting cylinder 61. The support platform 62 is rectangular and has a rectangular sliding groove 624 inside. The detection platform 64 matches the sliding groove 624 and is slidably installed within the sliding groove 624. The support platform 62 is mounted on the lifting cylinder 61. The height of the support platform can be adjusted by the lifting cylinder 61 to adapt to the liftable treatment bed 4, ensuring that the detection platform 64 is parallel to the upper surface of the treatment bed 4. The detection platform 64 is used to place the detection paper needed in the verification of the linear accelerator's light field radiation field. The surface of the detection platform 64 is flat. When the detection paper is placed on the detection platform 64, it is ensured that the detection paper can be completely flattened without collapsing or wrinkling, thus improving the detection accuracy.

[0028] Drive racks 65 are mounted on both sides of the detection platform 64. Two gear receiving slots 621 are formed on the bottom surface of the support platform 62, aligned with the drive racks 65. Two drive motors 66 are also fixed to the bottom surface of the support platform 62 by bolts. Drive gears 67 are mounted on the output ends of the drive motors 66. The drive gears 67 mesh with the drive racks 65 through the gear receiving slots 621, thus enabling the detection platform 64 to move closer to and away from the treatment bed 4 by the forward and reverse rotation of the drive motors 66. The sliding groove 624 of the support platform 62 of this invention is a sliding groove 624 with open ends. When the detection platform 64 needs to be replaced, it can be installed and disassembled simply by aligning the detection platform 64 with the sliding groove 624. The structure is simple and disassembly is convenient. The detection platform 64 is slidably connected to the support platform 62 located on the lifting cylinder 61. Through the cooperation of the drive motor 66, drive gear 67 and drive rack 65, the detection platform 64 can automatically move laterally left and right. By driving the lateral movement of the detection platform 64, it is possible to position the detection platform 64 above the treatment bed 4 to verify the light field radiation field, while keeping it away from the treatment bed 4 so as not to interfere with the patient lying on the treatment bed 4. This laterally movable design allows the detection platform 64 to be moved away when not in use, making reasonable use of the limited medical space and making the space around the treatment bed 4 more open. At the same time, it also ensures that different devices in the entire treatment area (detection platform 64 and treatment bed 4) can coordinate and cooperate without interfering with each other, thus optimizing the overall medical environment layout.

[0029] A clamping platform 7 is rotatably mounted on the support platform 62. The clamping platform 7 is equipped with a clamp. The clamping platform 7 can be rotated so that it is laterally positioned on the treatment bed 4. This allows it to clamp the device used to detect the treatment bed 4, preventing the device from being fixed on the treatment bed 4 and thus avoiding poor detection accuracy.

[0030] like Figure 2 and Figure 3 As shown, a T-shaped guide rail 68 is provided in the sliding groove 624, and the detection platform 64 is provided with a guide groove 622 that cooperates with the T-shaped guide rail; through the cooperation of the T-shaped guide rail 68 and the guide groove 622, the sliding of the detection platform 64 can be made more stable and smooth.

[0031] like Figure 4 and Figure 5As shown, the clamping platform includes a rotating shaft 71, a first clamping platform 72, a second clamping platform 73, and an extension slide rod 74. The rotating shaft 71 is rotatably mounted on one end above the support platform 62. One end of the bottom surface of the first clamping platform 72 is mounted on the rotating shaft 71. The second clamping platform 73 is slidably connected to the first clamping platform 72 via the extension slide rod 74. The first clamping platform 72 and the second clamping platform 73 are rectangular plates with the same structure. Both clamping platforms 73 have through holes for mounting the extension slide rod 74. Two clamping platforms 7 are connected to the through hole, which enables the first clamping platform 72 and the second clamping platform 73 to slide and extend and shorten. The first clamping platform 72 is mounted on the support platform 62 through the rotating shaft 71, so that the first clamping platform 72 and the second clamping platform 73 can be stored along the length direction of the support platform 62 or extended along the width direction of the treatment bed 4. This makes reasonable use of the limited medical space and optimizes the overall medical environment layout by rotating and storing and extending the platform.

[0032] like Figure 5 As shown, the second clamping platform 73 has an ear plate 75 at one end away from the rotating shaft 71, and a support foot 76 is threaded onto the ear plate 75. The support platform has a fixing groove 623 on the side near the ear plate 75. When the first clamping platform 72 and the second clamping platform 73 are rotated to the length direction of the support platform 62 for storage, the support foot 76 can be rotated to extend into the fixing groove 623 to prevent the first clamping platform 72 and the second clamping platform 73 from swinging at will, ensuring the stability of the first clamping platform 72 and the second clamping platform 73 after storage. At the same time, when the first and second clamping platforms 73 are extended along the width direction of the treatment bed 4, the support foot 76 can be rotated and placed on the treatment bed 4 to ensure the support stability of the first and second clamping platforms 73. The ear plate 75 is used to connect the support foot 76.

[0033] like Figure 1 As shown, a rotating platform 41 is movably connected to the bottom surface of the treatment bed 4, and a base 42 is installed on the bottom surface of the rotating platform 41. When a linear accelerator is needed for testing, the tester can lie on the treatment bed 4, and the horizontal angle of the treatment bed 4 can be adjusted using the rotating platform 41, which facilitates changing the tester's testing position.

[0034] like Figure 5As shown, the clamp includes two fixed bases 42, a cylinder 82, a clamp housing 83, and grippers 84. The two fixed bases 42 are symmetrically arranged on the first clamping platform 72 and the second clamping platform 73, respectively. The cylinder 82 is mounted on the fixed base 42. The clamp housing 83 is located on the side of the base 42 near the output end of the cylinder 82. The grippers 84 are slidably disposed inside the clamp housing 83. The fixed bases 42 are mounted on the first and second clamping platforms 73 to provide a fixed position for the cylinder 82. The output end of each cylinder 82 is equipped with a clamp housing 83. Two grippers 84 are slidably connected inside each clamp housing 83. The clamp housing 83 and the grippers 84 cooperate. When performing position detection on the treatment bed 4, a ruler is required. When fixing the ruler, the grippers 84 can be used to fix the ruler.

[0035] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A medical linear accelerator light field radiation field verification device comprising a cabinet, a gantry movably provided on the cabinet, a collimator provided on the gantry, and a treatment couch provided below the collimator, characterized in that, One side of the treatment bed is provided with a moving track, a verification device is slidably arranged on the moving track, the verification device comprises a lifting cylinder and a supporting platform arranged on the lifting cylinder, a sliding groove is arranged in the supporting platform, a detection platform is slidably arranged in the sliding groove, a driving rack is arranged on the side of the detection platform, a gear accommodating groove is arranged in the bottom surface of the supporting platform and communicates with the sliding groove, a driving motor is arranged below the supporting platform, a driving gear is arranged on the output end of the driving motor and located in the gear accommodating groove and engaged with the driving rack, a clamping platform is rotatably arranged above the detection platform, and clamps are arranged at the two ends of the clamping platform.

2. The medical linear accelerator light field radiation field verification device of claim 1, wherein, A T-shaped guide rail is arranged in the sliding groove, and a guide groove matched with the T-shaped guide rail is arranged in the detection platform.

3. The medical linear accelerator light field radiation field verification device of claim 1, wherein, The clamping platform comprises a rotating shaft, a first clamping platform, a second clamping platform and an extension slide rod, one end of the rotating shaft is rotatably arranged above the supporting platform, one end of the bottom surface of the first clamping platform is arranged on the rotating shaft, and the second clamping platform is slidably connected with the first clamping platform through the extension slide rod.

4. The medical linear accelerator light field radiation field verification device of claim 3, wherein, One end of the second clamping platform away from the rotating shaft is provided with an ear plate, and a supporting leg is threadedly connected to the ear plate.

5. The medical linear accelerator light field radiation field verification device of claim 4, wherein, A fixing groove is arranged on one side of the supporting platform close to the ear plate.

6. The medical linear accelerator light field radiation field verification device of claim 1, wherein, A rotating table is movably connected to the bottom surface of the treatment bed, and a base is mounted on the bottom surface of the rotating table.

7. The medical linear accelerator light field radiation field verification device of claim 3, wherein, The clamp comprises two fixed bases, a cylinder, a clamp shell and a clamping jaw, the two fixed bases are respectively and symmetrically arranged on the first clamping platform and the second clamping platform, the cylinder is arranged on the fixed base, the clamp shell is arranged on one side of the fixed base close to the output end of the cylinder, and the clamping jaw is slidably arranged in the clamp shell.

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