A laser positioning calibration device for radiotherapy equipment

Abstract

The utility model relates to the field of radiotherapy medical technology especially, more particularly to a kind of laser positioning calibration device for radiotherapy equipment, including device main body, the upper surface of device main body is fixedly connected with docking plate, the side surface of docking plate is equipped with positioning mechanism, the inner ring surface of device main body is fixedly connected with second telescopic link. This kind of laser positioning calibration device for radiotherapy equipment is adjusted in position by first telescopic link in positioning mechanism, and laser positioning calibrator assembly of inside limit clamping can be pushed to clamping frame, motor output shaft can drive clamping frame to rotate, so that laser positioning calibrator assembly realizes multi-angle positioning calibration, meets the positioning demand of different directions of radiotherapy equipment, and the second telescopic link of device main body inner ring can drive limit insertion rod to be telescopic, combined with the size matching design of limit insertion rod and device main body inner ring clamping opening, can assist adjustment device overall height and installation position, further improve positioning flexibility.

Description

Technical Field

[0001] This utility model relates to the field of radiotherapy medical technology, and in particular to a laser positioning and calibration device for radiotherapy equipment. Background Technology

[0002] Radiotherapy equipment, also known as radiotherapy device, is a type of medical device that uses ionizing radiation to treat malignant tumors and some benign diseases. Its core principle is to destroy the DNA structure of tumor cells through radiation energy, inhibit the proliferation of tumor cells, thereby achieving the therapeutic goal of killing tumor cells or controlling tumor growth, while minimizing damage to surrounding normal tissues. It is an indispensable and important means in the comprehensive treatment of tumors. When users position the radiotherapy equipment, a laser positioning calibration device is required.

[0003] An investigation revealed a Chinese utility model patent, CN203519646U, which discloses a laser positioning calibration device for a wind direction sensor. The device includes: a wind direction transmission parallel, whose two ends are connected to the wind direction sensor mounting arm and the wind direction sensor via snap-fit ​​connectors, ensuring that the north direction (0°) of the wind direction sensor aligns with one side of the wind direction sensor mounting arm; and a laser calibration work platform positioned below the wind direction sensor mounting arm. The advantages of this utility model are: First, the wind direction transmission parallel solves the problem of consistency between the north direction of the wind direction sensor and the orientation of the wind direction sensor mounting arm, transforming the previous manual process into a standardized operation using mechanical components, avoiding human eye errors over long distances, and improving measurement accuracy. Second, the laser calibration work platform, where a laser search scanning scheme transmits the north direction information from the ground, and then a compass is used for wind direction positioning calibration, effectively improving the objectivity and accuracy of the north direction sensor deviation measurement.

[0004] When used by users, the aforementioned patents have significant limitations in their positioning and adjustment capabilities. They lack a multi-dimensional, precise adjustment structure, and the position adjustments are mostly in a single direction or at a fixed angle, making it impossible to achieve flexible fine-tuning and multi-angle rotation. This makes it difficult to meet the positioning needs of radiotherapy equipment for patients in different orientations and body positions. The overall height and installation position adjustment methods are cumbersome, often relying on manual disassembly and reassembly or using simple telescopic structures without reliable limit locking designs. After adjustment, positional deviation is prone to occur, leading to a decrease in positioning accuracy. This increases the difficulty of operation and also affects the radiotherapy treatment effect.

[0005] Therefore, there is a particular need for a laser positioning and calibration device for radiotherapy equipment. Utility Model Content

[0006] The purpose of this invention is to provide a laser positioning and calibration device for radiotherapy equipment to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a laser positioning and calibration device for radiotherapy equipment, comprising a device body, a docking plate fixedly connected to the upper surface of the device body, a positioning mechanism installed on the side surface of the docking plate, a second telescopic rod fixedly connected to the inner ring surface of the device body, and a limit plug fixedly connected to the bottom surface of the second telescopic rod. The positioning mechanism includes a support rod mounted on a docking plate. A connecting frame is fixedly connected to one side of the support rod. A protective shell is locked to the inner surface of the connecting frame. A connecting block is fixedly connected to the inner surface of the protective shell. A motor is fixedly connected to one side of the connecting block. A locking frame is fixedly sleeved on the top of the motor's output shaft. A laser positioning calibrator assembly is locked to the inner surface of the locking frame. A first telescopic rod is fixedly connected to one side of the locking frame. A protective shaft is locked to the inner surface of the protective shell.

[0008] Preferably, a lower support plate is fixedly connected to one side of the main body of the device, and the structure between the lower support plate and the support rod fits together.

[0009] Preferably, the upper surface of the protective shell has a through-hole for heat dissipation, and the number of heat dissipation openings is multiple.

[0010] Preferably, the motor is connected to the protective shell via a connecting block, and the connecting block is symmetrically arranged with the vertical center line of the motor as the axis of symmetry.

[0011] Preferably, a mounting plate is fixedly connected to the bottom surface of the limiting rod, and the mounting plate is symmetrically arranged with the vertical center line of the main body of the device as the axis of symmetry.

[0012] Preferably, the upper surface of the mounting plate has a through mounting opening, and the number of mounting openings is multiple.

[0013] Preferably, the inner surface of the main body of the device has a snap-fit ​​opening, and the size of the snap-fit ​​opening and the limiting rod are matched.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The first telescopic rod in the positioning mechanism can push the snap-fit ​​frame and the laser positioning calibrator assembly with internal limit snap-fit ​​for fine-tuning of position. The motor output shaft can drive the snap-fit ​​frame to rotate, enabling the laser positioning calibrator assembly to achieve multi-angle positioning calibration, meeting the positioning requirements of radiotherapy equipment in different directions. The second telescopic rod in the inner ring of the device body can drive the extension and retraction of the limit plug. Combined with the size matching design of the limit plug and the snap-fit ​​opening in the inner ring of the device body, it can help adjust the overall height and installation position of the device, further improving the positioning flexibility.

[0015] 2. With the connecting block fixed inside the protective shell, the protective shell can block dust, impurities, and accidental collisions in the radiotherapy environment from damaging the motor. Multiple heat dissipation openings on its surface can quickly dissipate the heat generated by the motor operation, preventing the motor from overheating and failing. The protective shaft, which is limited and snapped into the inner ring of the protective shell, fits the structure of the motor output shaft, further protecting the output shaft and reducing wear. The multiple installation openings allow the device to be firmly connected to the radiotherapy equipment, while also facilitating later disassembly and adjustment, improving overall operation and maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a side sectional view of the present invention.

[0017] In the diagram: 1. Main body of the device; 2. Docking plate; 3. Positioning mechanism; 301. Support rod; 302. Lower support plate; 303. Connecting frame; 304. Protective shell; 305. Heat dissipation opening; 306. Connecting block; 307. Motor; 308. Protective shaft; 309. Snap-fit ​​frame; 310. Laser positioning calibrator assembly; 311. First telescopic rod; 4. Snap-fit ​​opening; 5. Second telescopic rod; 6. Limiting rod; 7. Mounting plate; 8. Mounting opening. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a laser positioning and calibration device for radiotherapy equipment, including a device body 1, a docking plate 2 fixedly connected to the upper surface of the device body 1, a positioning mechanism 3 installed on the side surface of the docking plate 2, a second telescopic rod 5 fixedly connected to the inner ring surface of the device body 1, and a limit plug rod 6 fixedly connected to the bottom surface of the second telescopic rod 5. The positioning mechanism 3 includes a support rod 301, which is mounted on the docking plate 2. A connecting frame 303 is fixedly connected to one side of the support rod 301. A protective shell 304 is locked to the inner ring surface of the connecting frame 303. A connecting block 306 is fixedly connected to the inner ring surface of the protective shell 304. A motor 307 is fixedly connected to one side of the connecting block 306. A locking frame 309 is fixedly sleeved on the top of the output shaft of the motor 307. A laser positioning calibrator assembly 310 is locked to the inner ring surface of the locking frame 309. A first telescopic rod 311 is fixedly connected to one side of the locking frame 309. A protective shaft 308 is locked to the inner ring surface of the protective shell 304.

[0020] Furthermore, a lower support plate 302 is fixedly connected to one side of the main body 1 of the device, and the structure between the lower support plate 302 and the support rod 301 fits together. The lower support plate 302 can form a stable support with the support rod 301, and support the bottom of the support rod 301. This prevents the support rod 301 from tilting or shaking due to uneven force caused by relying solely on the connection with the docking plate 2, thereby enhancing the overall installation stability of the positioning mechanism 3 and providing a reliable structural foundation for the accurate positioning of the laser positioning calibrator assembly 310.

[0021] Furthermore, the upper surface of the protective shell 304 is provided with a heat dissipation opening 305, and there are multiple heat dissipation openings 305. The multiple heat dissipation openings 305 can quickly dissipate the heat generated during the operation of the motor 307, form a good air circulation channel, effectively prevent the motor 307 from overheating due to long-term operation, thus ensuring the stable operation of the motor 307 and ensuring the continuity and reliability of the laser positioning calibration operation.

[0022] Furthermore, the motor 307 is connected to the protective shell 304 via the connecting block 306, and the connecting block 306 is symmetrically arranged with the vertical center line of the motor 307 as the axis of symmetry. The symmetrical connecting block 306 can keep the motor 307 in a centered installation state within the protective shell 304, with uniform force, avoiding vibration of the motor 307 due to installation offset, and reducing the impact of vibration on the positioning accuracy of the laser positioning calibrator assembly 310.

[0023] Furthermore, a mounting plate 7 is fixedly connected to the bottom surface of the limiting rod 6, and the mounting plate 7 is symmetrically arranged with the vertical center line of the device body 1 as the axis of symmetry. The symmetrical mounting plate 7 can increase the contact area between the device and the installation surface of the radiotherapy equipment, so that the device is subjected to more balanced force during installation and avoids loosening of the installation due to excessive force at a single point.

[0024] Furthermore, the upper surface of the mounting plate 7 is provided with multiple mounting openings 8. These multiple mounting openings 8 provide multiple fixing points for the connection between the device and the radiotherapy equipment. Appropriate mounting holes can be selected according to actual installation needs, which not only enhances the flexibility of installation but also further improves the firmness of the device installation and prevents the device from shifting during use.

[0025] Furthermore, the inner surface of the device body 1 is provided with a snap-fit ​​opening 4, and the snap-fit ​​opening 4 and the limiting rod 6 are matched in size. The snap-fit ​​opening 4 and the limiting rod 6 are designed to cooperate, so that after the device height is adjusted by the second telescopic rod 5, the limiting rod 6 can be snapped into the snap-fit ​​opening 4 of the corresponding height to achieve rapid locking of the device height. This prevents the second telescopic rod 5 from retracting due to long-term force and ensures that the device remains highly stable throughout the entire radiotherapy positioning and calibration process.

[0026] Working principle: When a user needs to use a laser positioning and calibration device for radiotherapy equipment, the mounting plate 7, which is fixedly connected to the bottom of the limiting rod 6, uses multiple mounting openings 8 through its surface to firmly connect the entire device to the designated installation position of the radiotherapy equipment with bolts; the mounting plate 7 is symmetrically arranged with the vertical center line of the device body 1 as the axis of symmetry to ensure that the device is installed with balanced force and stable foundation position, and the support rod 301 in the positioning mechanism 3 is installed on the side of the docking plate 2 on the upper surface of the device body 1; Simultaneously, the support rod 301 and the lower support plate 302 fixedly connected to one side of the main body 1 are matched to each other, realizing the double stable support of the support rod 301; then, the protective shell 304 is limited and snapped to the inner ring surface of the connecting frame 303 fixed to one side of the support rod 301, completing the assembly of the main frame of the positioning mechanism 3; the motor 307 is fixedly connected to the inner ring surface of the protective shell 304 through the connecting blocks 306 symmetrically arranged on both sides, ensuring that the motor 307 is firmly installed; the protective shaft 308 is limited and snapped to the inner ring of the protective shell 304, so that the protective shaft 308 and the output shaft structure of the motor 307 are matched to each other; finally, the laser positioning calibrator assembly 310 is limited and snapped to the inner ring surface of the snap-fit ​​frame 309 fixedly sleeved at the top of the output shaft of the motor 307, completing the installation of the core working components; According to the positioning requirements of the radiotherapy equipment, adjust the overall height and position of the device. The second telescopic rod 5, fixed to the inner ring of the main body 1, extends and retracts, causing the limiting rod 6 to move up and down. When adjusted to a suitable height, the limiting rod 6 engages and is fixed with the snap-fit ​​opening 4 on the inner ring surface of the main body 1, locking the overall height of the device. Then, the motor 307 is activated, and its output shaft drives the snap-fit ​​frame 309 and the laser positioning calibrator assembly 310 to rotate, adjusting the laser positioning angle. Simultaneously, the first telescopic rod 311, fixed to one side of the snap-fit ​​frame 309, extends and retracts, adjusting the horizontal position of the laser positioning calibrator assembly 310. Fine-tune until the laser positioning is precisely aligned with the target position required for radiotherapy. During operation, multiple heat dissipation openings 305 on the upper surface of the protective shell 304 continuously dissipate heat for the motor 307, ensuring stable operation of the motor 307. After the laser positioning is accurately calibrated, turn off the motor 307 and keep the position of the laser positioning calibrator assembly 310 stable, so that it can be used in conjunction with the radiotherapy equipment for treatment. If the laser positioning calibrator assembly 310 needs to be replaced or repaired, it can be disassembled by simply pulling it out of the snap-fit ​​frame 309. After maintenance, it can be re-snap-fitted and installed.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser positioning calibration device for radiotherapy apparatuses, comprising a device body (1), characterized in that: A docking plate (2) is fixedly connected to the upper surface of the main body (1) of the device. A positioning mechanism (3) is installed on the side surface of the docking plate (2). A second telescopic rod (5) is fixedly connected to the inner ring surface of the main body (1). A limit plug (6) is fixedly connected to the bottom surface of the second telescopic rod (5). The positioning mechanism (3) includes a support rod (301), which is mounted on the docking plate (2). A connecting frame (303) is fixedly connected to one side of the support rod (301). A protective shell (304) is limited and snapped onto the inner ring surface of the connecting frame (303). A connecting block (306) is fixedly connected to the inner ring surface of the protective shell (304). A motor (307) is fixedly connected to one side of the connecting block (306). A snap-fit ​​frame (309) is fixedly sleeved on the top of the output shaft of the motor (307). A laser positioning calibrator assembly (310) is limited and snapped onto the inner ring surface of the snap-fit ​​frame (309). A first telescopic rod (311) is fixedly connected to one side of the snap-fit ​​frame (309). A protective shaft (308) is limited and snapped onto the inner ring surface of the protective shell (304).

2. The laser positioning calibration device for radiotherapy equipment according to claim 1, characterized in that: A lower support plate (302) is fixedly connected to one side of the main body (1) of the device, and the structure between the lower support plate (302) and the support rod (301) fits together.

3. The laser positioning and calibration device for radiotherapy equipment according to claim 1, characterized in that: The upper surface of the protective shell (304) is provided with a heat dissipation opening (305), and there are multiple heat dissipation openings (305).

4. A laser positioning and calibration device for radiotherapy equipment according to claim 1, characterized in that: The motor (307) is connected to the protective shell (304) via a connecting block (306), and the connecting block (306) is symmetrically arranged with the vertical center line of the motor (307) as the axis of symmetry.

5. A laser positioning and calibration device for radiotherapy equipment according to claim 1, characterized in that: The bottom surface of the limiting rod (6) is fixedly connected to the mounting plate (7), and the mounting plate (7) is symmetrically arranged with the vertical center line of the device body (1) as the axis of symmetry.

6. A laser positioning and calibration device for radiotherapy equipment according to claim 5, characterized in that: The upper surface of the mounting plate (7) is provided with a through mounting opening (8), and there are multiple mounting openings (8).

7. A laser positioning and calibration device for radiotherapy equipment according to claim 1, characterized in that: The inner surface of the main body (1) of the device is provided with a snap-fit ​​opening (4), and the snap-fit ​​opening (4) and the limiting rod (6) are matched in size.

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