A measuring tool for radiotherapy equipment

Abstract

The application provides a kind of measuring tool for radiotherapy equipment, belongs to the technical field of radiotherapy.It includes the assembly plate installed at the bottom of treatment head, one side of assembly plate is inserted with measuring rod, the end of measuring rod away from assembly plate is fixedly connected with adjusting rod;Measuring assembly is used to measure mechanical error of treatment head.The application can not only measure the accuracy of treatment head radiation area by setting measuring assembly, but also judge whether there is angle deviation of X-ray radiated by treatment head, measuring assembly can also judge and locate the size and position of X-ray angle deviation, so that the operator can quickly adjust and reset the treatment head with mechanical error according to the type and position of treatment head radiation area deviation, improve the efficiency of treatment head measurement and reset.

Description

Technical Field

[0001] This invention relates to the field of radiotherapy technology, and in particular to a measuring tool for radiotherapy equipment. Background Technology

[0002] Intraoperative radiotherapy refers to a treatment method in which the tumor bed, residual lesions and surrounding lymphatic drainage areas are fully exposed during surgery, and organs at risk are moved to the outside of the irradiation field as much as possible. A single high-dose irradiation is then performed under direct vision in order to kill tumor cells to the maximum extent and prevent or reduce radiation damage to normal tissues.

[0003] During treatment, the treatment head used to generate radiation is docked with the beam-limiting device at the patient's lesion. However, in actual radiotherapy, if there is a mechanical error in the alignment of the treatment head at the treatment position, the actual position of the radiation beam axis will deviate from the expected position. If the deviation is large, it may reduce the treatment effect and damage normal tissue. Therefore, this invention provides a measuring tool for radiotherapy equipment to meet the requirements. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide a measuring tool for radiotherapy equipment. By setting up a measuring component, it can not only measure the accuracy of the radiation area of ​​the treatment head, but also determine whether there is an angular deviation in the X-rays emitted by the treatment head. The measuring component can also judge and locate the magnitude and position of the X-ray angular deviation, thereby allowing the operator to quickly adjust and reset the treatment head with mechanical errors based on the type and position of the deviation in the radiation area of ​​the treatment head. This improves the efficiency of treatment head measurement and reset. Through the above settings, the problem of mechanical errors in the treatment head during the current use of radiotherapy equipment can be solved.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A measuring tool for a radiotherapy device includes an assembly plate mounted on the bottom of a treatment head. A measuring rod is inserted into one side of the assembly plate, and an adjusting rod is fixedly connected to the end of the measuring rod away from the assembly plate. Multiple sets of linearly arranged rotating rings are rotatably connected to the outer wall of the adjusting rod. A first rotating rod and a second rotating rod are fixedly connected to the outer wall of each rotating ring. The first rotating rod and the second rotating rod form a "V" shape with an included angle of 120 degrees. The first rotating rod, the second rotating rod, and the rotating rings are manufactured as a single unit. A measuring component is also included, used to measure the mechanical error of the treatment head. The measuring component is connected to the first rotating rod and the second rotating rod, respectively.

[0007] Optionally, a mounting plate is fixedly connected to the bottom of the treatment head. A mounting rod and a stop rod are fixedly connected to the outer wall of the mounting plate from top to bottom. An assembly rod is fixedly connected to the top of the assembly plate. A hole matching the size of the mounting rod is opened through the assembly rod. The position of the stop rod corresponds to the position of the end of the assembly rod. The treatment head and the assembly plate are fixedly connected by the mounting rod and the assembly rod. A threaded cylinder is fixedly connected to the outer wall of the assembly plate. A threaded rod is fixedly connected to one end of the measuring rod near the assembly plate. A threaded sleeve is screwed onto the outer wall of the threaded cylinder. The threaded rod consists of two rods. The size of the rod near the measuring rod matches the inner circumference of the threaded sleeve and is threaded on its outer wall. The size of the other rod matches the inner circumference of the threaded cylinder. The assembly plate and the measuring rod are connected by the threaded rod and the threaded cylinder and fixed by the threaded sleeve.

[0008] Optionally, a limiting groove is formed on the outer wall of the adjusting rod, and the rotating ring and the adjusting rod are rotatably connected through the limiting groove. A stop block is fixedly connected to the outer wall of both the first rotating rod and the second rotating rod. The stop block consists of a rod body and a ball, wherein the ball of the stop block on the first rotating rod faces upward and the ball of the stop block on the second rotating rod faces downward. A limiting plate is fixedly connected to the outer wall of the adjusting rod. There are four limiting plates in total. The four limiting plates are divided into two groups of two, and the two groups of limiting plates are located at the top and bottom of the limiting groove, respectively. The included angle between each group of limiting plates is 120 degrees.

[0009] Optionally, the measuring component includes a first limiting ring and a second limiting ring fixedly connected to the first rotating rod and the second rotating rod, respectively. The size of the first limiting ring and the second limiting ring decreases from top to bottom. A measuring cylinder and a positioning cylinder are rotatably connected to the first limiting ring and the second limiting ring, respectively. A base is rotatably connected to the first limiting ring located at the bottom of the adjusting rod. An X-ray sensor is fixedly connected to the middle position of the base.

[0010] Optionally, the top of the measuring cylinder is provided with a first mounting groove that matches the size of the first limiting ring, and the bottom of the measuring cylinder is provided with a plurality of slots, each of which is fitted with an insert plate. A detection plate and an outer plate are fixedly connected to both sides of the insert plate, wherein the detection plate is located on the inner wall of the measuring cylinder and the outer plate is located on the outer wall of the measuring cylinder.

[0011] Optionally, the height of the detection plate is the same as the height of the measuring cylinder, and several detection plates are arranged to form a complete circumference on the inner wall of the measuring cylinder.

[0012] Optionally, the top of the positioning cylinder is provided with a second mounting groove that matches the size of the second limiting ring, the bottom of the positioning cylinder is provided with a third mounting groove, a base plate is inserted into the third mounting groove, an adapter plate is fixedly connected to the top of the base plate, a fourth mounting groove that matches the contour of the adapter plate is provided inside the positioning cylinder, an inner plate is fixedly connected to the inner wall of the adapter plate, and an mounting strip is slidably connected to the inner plate.

[0013] Optionally, an adapter head is fixedly connected to the top of the adapter plate, an adapter groove matching the size of the adapter head is opened on the top of the fourth mounting groove, clearance grooves are opened on both sides of the adapter groove, and buckle grooves are symmetrically opened on the bottom of the positioning cylinder.

[0014] Optionally, the inner plate is provided with a plurality of straight sliding grooves, the depth of which increases progressively. A straight sliding block that is adapted to the position and size of the straight sliding groove is fixedly connected to the outer wall of the mounting strip. The mounting strip and the inner plate are connected by the straight sliding groove and the straight sliding block.

[0015] Optionally, the top of the mounting strip has an inwardly sloping surface, the middle position of the mounting strip has a concave arc-shaped profile, and the bottom dimension of the mounting strip is larger than the top dimension.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above solution, by setting up a measuring component, not only can the accuracy of the radiation area of ​​the treatment head be measured, but it can also be determined whether there is an angular deviation in the X-rays emitted by the treatment head. The measuring component can also judge and locate the magnitude and position of the X-ray angular deviation, so that the operator can quickly adjust and reset the treatment head with mechanical errors according to the type and position of the deviation in the radiation area of ​​the treatment head, thereby improving the efficiency of treatment head measurement and reset.

[0018] By incorporating structures such as assembly rods and threaded sleeves, operators can not only assemble the assembly plate onto the mounting plate at the bottom of the treatment head using the assembly rods and mounting rods, but also assemble the measuring rod using the threaded sleeve and threaded sleeve. This design makes the measuring component more flexible and the assembly of the measuring component onto the treatment head more efficient, thus making it easier for operators to use the measuring component to measure the treatment head. The freely detachable structure allows the measuring component to be disassembled for cleaning and disinfection, thereby improving the convenience and service life of the measuring component.

[0019] By setting up a measuring cylinder, the operator can not only determine whether the X-ray emitted from the treatment head has shifted position, but also determine the magnitude of the X-ray shift based on the X-ray sensing signals emitted by the detection plate at different positions. Based on the magnitude of the X-ray shift, the operator can select a specific correction method to improve the efficiency of treatment head error correction. When the base emits an X-ray sensing signal, it means that the X-ray emitted from the treatment head has not shifted position.

[0020] By setting up an adapter head and an adapter slot, during the process of inserting the adapter head into the adapter slot, the adapter head will squeeze the adapter slot and drive the two sides of the adapter slot to deform at the position of the avoidance slot. During the deformation of the adapter slot, a reverse squeezing force will be applied to the adapter head. This setting can improve the compatibility of the structure between the adapter head and the adapter slot, and improve the fixing effect of the adapter slot on the adapter head. Using this method to fix the adapter plate not only has high disassembly and assembly efficiency, but also good stability.

[0021] By setting up mounting strips and an inner plate, operators can observe the colored positions on the X-ray sensing films to determine the specific location of X-ray deviation, providing accurate data for subsequent correction and improving the efficiency of X-ray correction for the treatment head. Since multiple mounting strips are installed on the inner plate with a certain spacing between them, operators can determine whether there is an angular deviation in the X-ray based on the colored positions on multiple X-ray sensing films. If the colored positions on each X-ray sensing film are on the same vertical line, it indicates that there is no angular deviation in the X-ray. If the colored positions on the X-ray sensing films are not on the same vertical line, it indicates that there is an angular deviation in the X-ray. Operators can determine the angle of X-ray deviation by comparing the offset of the colored positions on two adjacent X-ray sensing films, making it easier for operators to perform angle correction on the X-ray and further improving the efficiency of treatment head error correction. Attached Figure Description

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0023] Figure 1 A three-dimensional structural diagram of measuring tools and radiotherapy equipment used in conjunction with radiotherapy equipment;

[0024] Figure 2 A magnified three-dimensional structural diagram of measuring tools and treatment heads used in radiotherapy equipment;

[0025] Figure 3 Enlarged 3D structural diagram of the assembly plate and mounting plate in conjunction;

[0026] Figure 4 Exploded three-dimensional structural diagram of the assembly plate and measuring rod;

[0027] Figure 5 A cross-sectional three-dimensional structural diagram for the measurement components;

[0028] Figure 6 for Figure 5 Enlarged 3D structural diagram at point A;

[0029] Figure 7 for Figure 5 Enlarged 3D structural diagram at point B;

[0030] Figure 8 A cross-sectional three-dimensional structural diagram of the measuring cylinder and outer plate in conjunction;

[0031] Figure 9 A top-view three-dimensional structural diagram of the measuring rod and swivel ring in operation;

[0032] Figure 10 A magnified three-dimensional schematic diagram of the adjusting rod and rotating ring working together before the rotating ring rotates;

[0033] Figure 11 This is an enlarged three-dimensional schematic diagram of the adjustment rod and the rotating ring after the rotating ring has rotated.

[0034] Figure 12 A cross-sectional three-dimensional structural diagram showing the fit between the positioning cylinder and the adapter plate;

[0035] Figure 13 for Figure 12 Enlarged 3D structural diagram at point C;

[0036] Figure 14 A schematic diagram of the positioning cylinder from a bottom view of its three-dimensional structure;

[0037] Figure 15 An enlarged 3D structural diagram showing the fit between the adapter plate and the mounting strip.

[0038] Figure label:

[0039] 1. Treatment head; 101. Mounting plate; 102. Mounting rod; 103. Stop bar; 2. Assembly plate; 201. Assembly rod; 202. Threaded cylinder; 203. Threaded sleeve; 3. Measuring rod; 301. Threaded rod; 302. Adjusting rod; 303. Limiting groove; 304. Limiting plate; 4. Rotary ring; 401. First rotating rod; 402. First limiting ring; 403. Second rotating rod; 404. Second limiting ring; 405. Stop block; 5. Measuring cylinder 501, First mounting slot; 502, Slot; 6, Outer panel; 601, Detection plate; 602, Insert plate; 7, Base; 8, Positioning cylinder; 801, Second mounting slot; 802, Third mounting slot; 803, Fourth mounting slot; 804, Adapter slot; 805, Clearance slot; 806, Clip slot; 9, Base plate; 901, Adapter plate; 902, Adapter head; 903, Inner panel; 904, Straight slide groove; 10, Mounting strip; 11, Straight slider.

[0040] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0041] The measuring tool for a radiotherapy device provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0042] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0043] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0044] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0045] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0046] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a measuring tool for a radiotherapy device, including an assembly plate 2 installed at the bottom of a treatment head 1. A measuring rod 3 is inserted into one side of the assembly plate 2. An adjusting rod 302 is fixedly connected to the end of the measuring rod 3 away from the assembly plate 2. Multiple sets of linearly arranged rotating rings 4 are rotatably connected to the outer wall of the adjusting rod 302. A first rotating rod 401 and a second rotating rod 403 are fixedly connected to the outer wall of the rotating rings 4. The first rotating rod 401 and the second rotating rod 403 form a "V" shaped profile with an included angle of 120 degrees. The first rotating rod 401, the second rotating rod 403, and the rotating rings 4 are integrally manufactured. A measuring assembly is used to measure the treatment... The mechanical error of head 1 is measured by the measuring components connected to the first rotating rod 401 and the second rotating rod 403 respectively. The measuring tool provided in this application is for use in medical linear accelerators. By setting the measuring components, not only can the accuracy of the radiation area of ​​treatment head 1 be measured, but also the angular deviation of the X-rays emitted by treatment head 1 can be determined. In addition, the measuring components can also judge and locate the magnitude and position of the X-ray angular deviation, so that the operator can quickly adjust and reset the treatment head 1 with mechanical error according to the type and position of the deviation in the radiation area of ​​treatment head 1, thereby improving the efficiency of measurement and reset of treatment head 1.

[0047] In this embodiment, as Figures 1 to 4As shown, a mounting plate 101 is fixedly connected to the bottom of the treatment head 1. A mounting rod 102 and a stop rod 103 are fixedly connected to the outer wall of the mounting plate 101 from top to bottom. An assembly rod 201 is fixedly connected to the top of the assembly plate 2. A hole matching the size of the mounting rod 102 is opened through the assembly rod 201. The position of the stop rod 103 corresponds to the position of the end of the assembly rod 201. The treatment head 1 and the assembly plate 2 are fixedly connected by the mounting rod 102 and the assembly rod 201. A threaded cylinder 202 is fixedly connected to the outer wall of the assembly plate 2. A threaded rod 301 is fixedly connected to one end of the measuring rod 3 near the assembly plate 2. A threaded sleeve 203 is screwed onto the outer wall of the threaded cylinder 202. The threaded rod 301 consists of two rods. The rod closer to the measuring rod 3 has dimensions matching the inner circumference of the threaded sleeve 203 and has threads on its outer wall. The other rod has dimensions matching the inner circumference of the threaded cylinder 202. The assembly plate 2 and measuring rod 3 are connected by threaded rod 301 and threaded sleeve 202, and then screwed together by threaded sleeve 203. When the operator installs the assembly plate 2 on the treatment head 1, he first aligns the assembly plate 2 with the mounting plate 101 at the bottom of the treatment head 1 from bottom to top, and then screws the assembly rod 201 onto the mounting rod 102. Since the assembly rod 201 has a hole that matches the size of the mounting rod 102, when the two are screwed together, the mounting rod 102 and the assembly rod 201 will limit each other, thereby achieving the effect of fixing the assembly plate 2. Since the position of the stop rod 103 corresponds to the position of the end of the assembly rod 201, when the user screws the assembly rod 201 to the end of the mounting rod 102, the end of the assembly rod 201 will abut against the stop rod. At this time, the operator cannot continue to screw the assembly plate 2, thus informing the operator that the assembly plate 2 has been assembled.

[0048] Furthermore, after the assembly plate 2 is assembled, the operator can first insert the threaded rod 301 into the threaded cylinder 202. Since the size of the end of the threaded rod 301 matches the size of the inner circumference of the threaded cylinder 202, the initial positioning of the measuring rod 3 can be achieved by using the size matching effect after the two are inserted. Then, the operator screws the threaded sleeve 203. Since the size of the rod near the measuring rod 3 on the threaded rod 301 matches the size of the inner circumference of the threaded sleeve 203 and the outer wall is provided with threads, the operator can screw the threaded sleeve 203 onto the threaded rod 301. By using the threaded sleeve 203, the threaded rod 301 and the threaded cylinder 202 can be spliced ​​and fixed. Using this installation method to fix the measuring rod 3 on the assembly plate 2 is not only efficient and convenient, but also firm and stable.

[0049] In summary, in this application, the operator can not only assemble the assembly plate 2 onto the mounting plate 101 at the bottom of the treatment head 1 using the assembly rod 201 and the mounting rod 102, but also assemble the measuring rod 3 using the threaded cylinder 202 and the threaded sleeve 203. This configuration makes the structure of the measuring component more flexible and the efficiency of assembling the measuring component onto the treatment head 1 more efficient, thus making it more convenient for the operator to use the measuring component to measure the treatment head 1. In addition, the freely detachable structure allows the measuring component to be disassembled separately for cleaning and disinfection, thereby improving the convenience and service life of the measuring component.

[0050] In this embodiment, as Figures 1 to 4 and Figures 9 to 11 As shown, a limiting groove 303 is formed on the outer wall of the adjusting rod 302. The rotating ring 4 and the adjusting rod 302 are rotatably connected through the limiting groove 303. A stop block 405 is fixedly connected to the outer wall of both the first rotating rod 401 and the second rotating rod 403. The stop block 405 consists of a rod body and a ball. The ball of the stop block 405 on the first rotating rod 401 faces upward, and the ball of the stop block 405 on the second rotating rod 403 faces downward. A limiting plate 304 is fixedly connected to the outer wall of the adjusting rod 302. There are four limiting plates 304 in total. 04. The components are divided into two groups of two, with the two groups of limiting plates 304 located at the top and bottom of the limiting groove 303, respectively. The included angle between each group of limiting plates 304 is 120 degrees. The first rotating rod 401 and the second rotating rod 403 are rotatably connected to the adjusting rod 302 via the rotating ring 4. At the same time, the first rotating rod 401 and the second rotating rod 403 are stopped and limited by the stop block 405 and the limiting plate 304. In the initial state, the stop block 405 on the first rotating rod 401 and the second rotating rod 403 are both abutting against the limiting plate 304 on the outer wall of the adjusting rod 302 (e.g., ...). Figure 10 (As shown) In this state, the rotating ring 4 cannot rotate towards the second rotating rod 403. When the operator rotates the rotating ring 4 towards the first rotating rod 401, the first rotating rod 401 and the second rotating rod 403 simultaneously move towards another limiting plate 304 on the outer wall of the adjusting rod 302 until the first rotating rod 401 and the second rotating rod 403 simultaneously abut against the other limiting plate 304. Since the first rotating rod 401 and the second rotating rod 403 form a "V" shaped profile with an included angle of 120 degrees, and the included angle between each set of limiting plates 304 is 120 degrees, when the first rotating rod 401 and the second rotating rod 403 abut against the other limiting plate 304, the limiting plate 304 at the corresponding position will block and limit the first rotating rod 401 and the second rotating rod 403 (e.g., Figure 11As shown in the figure, this prevents the operator from continuing to rotate the ring 4 in the direction of the first rotating rod 401. This setting allows the operator to rotate the ring 4 to fix the second rotating rod 403 to the position of the first rotating rod 401, and there will be no misalignment or deviation during the position adjustment process.

[0051] As one implementation method in this embodiment, such as Figures 5 to 9As shown, the measuring assembly includes a first limiting ring 402 and a second limiting ring 404, which are respectively fixedly connected to the first rotating rod 401 and the second rotating rod 403. The dimensions of the first limiting ring 402 and the second limiting ring 404 decrease progressively from top to bottom. A measuring cylinder 5 and a positioning cylinder 8 are rotatably connected to the first limiting ring 402 and the second limiting ring 404, respectively. A base 7 is rotatably connected to the first limiting ring 402 located at the bottom of the adjusting rod 302. An X-ray sensor is fixedly connected to the middle position of the base 7. The top of the measuring cylinder 5 has a first mounting groove 501 that matches the size of the first limiting ring 402. The bottom of the measuring cylinder 5 has several slots 502, and each slot 502 has an insert plate 602 inserted into it. The two sides of the insert plate 602 are respectively... A detection plate 601 and an outer plate 6 are fixedly connected. The detection plate 601 is located on the inner wall of the measuring cylinder 5, and the outer plate 6 is located on the outer wall of the measuring cylinder 5. The height of the detection plate 601 is the same as the height of the measuring cylinder 5. Several detection plates 601 form a complete circumference on the inner wall of the measuring cylinder 5. Multiple first limiting rings 402 decrease in size from top to bottom on the adjusting rod 302, and the corresponding size of the measuring cylinder 5 also decreases in size. The spacing between two adjacent first limiting rings 402 is the same, so the length of each measuring cylinder 5 is the same. The detection plate 601 is fixed inside the measuring cylinder 5 by inserting a plate 602. The outer plate 6 is fixed on the side of the insert plate 602 away from the detection plate 601. Since the outline of the outer plate 6 matches the outline of the measuring cylinder 5, and the insert plate 602 is fixed to the outer plate 6, the outer plate 6 is fixed to the outer plate 6. The dimensions of plate 602 match those of slot 502, allowing the outer plate 6 and insert plate 602 to simultaneously limit the position of detection plate 601, thus fixing it to the inner wall of measuring cylinder 5. An X-ray sensor is mounted on the surface of detection plate 601. When X-rays emitted from treatment head 1 irradiate the surface of detection plate 601, the X-ray sensor emits a corresponding sensing signal. Optionally, the X-ray sensing signal emitted by detection plate 601 can be connected to a computer terminal via a wireless signal generator, and displayed on the computer control terminal for operator reference. When the operator detects an X-ray sensing signal emitted by detection plate 601 on the computer control terminal, it indicates... The X-ray emitted by treatment head 1 exhibits a positional shift. Since the dimensions of multiple measuring cylinders 5 decrease progressively from top to bottom, and each measuring cylinder 5 is equipped with a detection plate 601, the closer the detection plate 601 is to the top, the greater the displacement of the X-ray emitted by treatment head 1. This setup allows the operator to determine the magnitude of the X-ray shift based on the X-ray sensing signals emitted by the detection plates 601 at corresponding positions. Based on the magnitude of the X-ray shift, a specific correction method can be selected, thereby improving the efficiency of error correction for treatment head 1. A base 7 is mounted on the first limiting ring 402 at the bottom of the adjusting rod 302, and an X-ray sensor is installed at the center of the base 7.When the X-ray sensor on base 7 emits an X-ray sensing signal, it means that the X-ray emitted by treatment head 1 has not shifted position.

[0052] In this embodiment, as Figures 12 to 15 As shown, the top of the positioning cylinder 8 has a second mounting groove 801 that matches the size of the second limiting ring 404, and the bottom of the positioning cylinder 8 has a third mounting groove 802. A base plate 9 is inserted into the third mounting groove 802, and an adapter plate 901 is fixedly connected to the top of the base plate 9. The positioning cylinder 8 has a fourth mounting groove 803 that matches the contour of the adapter plate 901. An inner plate 903 is fixedly connected to the inner wall of the adapter plate 901, and an mounting strip 10 is slidably connected to the inner plate 903. An adapter head 902 is fixedly connected to the top of the adapter plate 901. The top of the fourth mounting groove 803 has a mounting groove 802 that matches the contour of the adapter plate 901. The head 902 has a matching groove 804 with matching dimensions. The matching groove 804 has clearance grooves 805 on both sides. The bottom of the positioning cylinder 8 has symmetrically arranged latching grooves 806. The inner plate 903 has several straight sliding grooves 904 with progressively increasing depths. A straight sliding block 11, matching the position and size of the straight sliding groove 904, is fixedly connected to the outer wall of the mounting strip 10. The mounting strip 10 and the inner plate 903 are connected by the straight sliding grooves 904 and the straight sliding block 11. The top of the mounting strip 10 has an inwardly sloping surface, and the middle of the mounting strip 10 has a concave arc-shaped profile. The bottom dimension of the mounting strip 10 is larger than the top dimension. Since the outline of the adapter head 902 matches the outline of the adapter slot 804, when the user inserts the adapter plate 901 into the fourth mounting slot 803, the adapter plate 901 can be positioned by utilizing the conformity between the outline of the adapter head 902 and the adapter slot 804. In addition, clearance slots 805 are provided on both sides of the adapter slot 804. During the process of inserting the adapter head 902 into the adapter slot 804, the adapter head 902 will squeeze the adapter slot 804 and cause the two sides of the adapter slot 804 to deform at the position of the clearance slot 805. During the deformation of the adapter groove 804, a reverse compressive force is applied to the adapter head 902. This design improves the compatibility of the structure between the adapter head 902 and the adapter groove 804, and also enhances the fixing effect of the adapter groove 804 on the adapter head 902. Using this method to fix the adapter plate 901 not only results in high assembly and disassembly efficiency but also good stability. Since the bottom of the positioning cylinder 8 has symmetrically opened buckle grooves 806, when the operator needs to disassemble the adapter plate 901, he only needs to pull the adapter plate 901 outward from the buckle groove 806 to remove it from the positioning cylinder 8.

[0053] The mounting strip 10 is slidably connected to the straight groove 904 on the inner plate 903 via the straight slider 11. Since the inner plate 903 has several straight grooves 904 with progressively increasing depths, the mounting strip 10 is evenly distributed from top to bottom within the positioning cylinder 8. This method of fixing the mounting strip 10 not only ensures high assembly and disassembly efficiency but also guarantees that the mounting strip 10 is evenly arranged from top to bottom within the positioning cylinder 8. Operators can install X-ray sensing films within the mounting strip 10. When X-rays irradiate the X-ray sensing film, a colorimetric reaction will occur at the irradiated location. Furthermore, the top of the mounting strip 10 has an inwardly sloping surface, which facilitates the installation of the X-ray sensing film. When installing, the X-ray sensing film can be pressed into the mounting strip 10 from top to bottom. The inward-sloping top of the mounting strip 10 can assist in guiding the X-ray sensing film, thus ensuring the efficiency and accuracy of the installation. Because the middle position of the mounting strip 10 has a concave arc-shaped contour, and the bottom size of the mounting strip 10 is larger than the top size, when the operator presses the X-ray sensing film into the mounting strip 10, the arc-shaped contour at the middle position of the mounting strip 10 can wrap and limit the X-ray sensing film, and the bottom of the mounting strip 10 can support and limit the X-ray sensing film, thereby improving the stability and firmness of the X-ray sensing film after installation, preventing misalignment during use, and improving the accuracy of error detection of the treatment head 1.

[0054] Furthermore, as described above, the operator can rotate the rotating ring 4 to move the first rotating rod 401 to the position of the second rotating rod 403. Therefore, when the detection plate 601 inside the measuring cylinder 5 emits an X-ray sensing signal, the operator can rotate the rotating ring 4 at the corresponding position of the measuring cylinder 5 to move the second limiting ring 404 at the corresponding position to the position of the first limiting ring 402. At this time, the X-ray will irradiate the X-ray sensing film inside the mounting strip 10, causing a color reaction at the corresponding position of the X-ray sensing film. The operator can pull the base 7 outward to remove the adapter plate 901 along with the inner plate 903 from the positioning cylinder 8, and then remove the mounting strip 10 from the inner plate 903 to observe the color position on the X-ray sensing film, thereby determining the specific position of the X-ray deviation, providing accurate data for subsequent correction, and improving the efficiency of X-ray correction of the treatment head 1. In addition, because multiple mounting strips 10 are installed on the inner plate 903, and there is a certain gap between each mounting strip 10, this setting ensures that when X-rays pass through the X-ray sensing film on the surface of the mounting strip 10, a color reaction will be left on each X-ray sensing film. The operator can judge whether there is an angular deviation of the X-ray based on the position of the color on multiple X-ray sensing films. If the color position on each X-ray sensing film is on the same vertical line, it means that there is no angular deviation of the X-ray. If the color position on the X-ray sensing film is not on the same vertical line, it means that there is an angular deviation of the X-ray. The operator can judge the angle of the X-ray deviation based on the offset of the color position on two adjacent X-ray sensing films, which makes it easier for the operator to perform angle correction of the X-ray and further improves the efficiency of error correction of the treatment head 1.

[0055] The working principle of the technical solution provided by this invention is as follows:

[0056] In use, first align the assembly plate 2 with the mounting plate 101 at the bottom of the treatment head 1 from bottom to top. Then screw the assembly rod 201 onto the mounting rod 102. Since the assembly rod 201 has a hole that matches the size of the mounting rod 102, when the two are screwed together, the mounting rod 102 and the assembly rod 201 will limit each other, thereby achieving the effect of fixing the assembly plate 2. After the assembly plate 2 is assembled, the operator first inserts the threaded rod 301 into the threaded cylinder 202. Then the operator screws the threaded sleeve 203. Since the size of the rod near the measuring rod 3 on the threaded rod 301 matches the size of the inner circumference of the threaded sleeve 203 and the outer wall is threaded, the operator can screw the threaded sleeve 203 onto the threaded rod 301. With the help of the threaded sleeve 203, the threaded rod 301 and the threaded cylinder 202 are spliced ​​and fixed.

[0057] When measuring cylinder 5 is used to detect errors in the X-rays emitted by treatment head 1, if the X-rays emitted by treatment head 1 irradiate the surface of detection plate 601, the X-ray sensor on the surface of detection plate 601 will emit a corresponding sensing signal. When the operator detects the X-ray sensing signal emitted by detection plate 601 on the computer control terminal, it indicates that the X-rays emitted by treatment head 1 have shifted position. Since the dimensions of multiple measuring cylinders 5 decrease progressively from top to bottom, and each measuring cylinder 5 is equipped with a detection plate 601, the closer the detection plate 601 is to the top, the greater the displacement of the X-rays emitted by treatment head 1. This setup allows the operator to accurately measure the X-ray position. Based on the X-ray sensing signal emitted by the detection plate 601 at the corresponding position, the magnitude of the X-ray deviation emitted by the treatment head 1 is determined. Therefore, based on the magnitude of the X-ray deviation, a specific correction method is selected, thereby improving the efficiency of error correction for the treatment head 1. When the detection plate 601 inside the measuring cylinder 5 emits an X-ray sensing signal, the operator can rotate the rotating ring 4 at the corresponding position of the measuring cylinder 5, causing the second limiting ring 404 at the corresponding position to rotate to the position of the first limiting ring 402. At this time, the X-ray will irradiate the X-ray sensing film inside the mounting strip 10, causing a color development reaction at the corresponding position of the X-ray sensing film. The operator can then pull the base 7 outwards to move the adapter plate 901 along with the inner... Plate 903 is removed from positioning cylinder 8, and then mounting strip 10 is removed from inner plate 903 to observe the color development position on X-ray sensing film, thereby determining the specific position of X-ray deviation and providing accurate data for subsequent correction, improving the efficiency of X-ray correction of treatment head 1. Because multiple mounting strips 10 are installed on inner plate 903, and there is a certain spacing between each mounting strip 10, this setting ensures that when X-rays pass through the X-ray sensing film on the surface of the mounting strip 10, a color development reaction is left on each X-ray sensing film. The operator judges whether there is an angular deviation of the X-ray based on the color development position on multiple X-ray sensing films. If the color development position on each X-ray sensing film... If the X-rays are all on the same vertical line, it means that there is no angular deviation. If the color positions on the X-ray sensing film are not on the same vertical line, it means that there is an angular deviation. The operator can judge the angle of the X-ray deviation based on the offset of the color positions on two adjacent X-ray sensing films, which makes it easier for the operator to correct the angle of the X-rays and further improves the efficiency of error correction of the treatment head 1. The base 7 is installed on the first limiting ring 402 at the bottom of the adjustment rod 302, and the X-ray sensor is installed in the middle of the base 7. When the X-ray sensor on the base 7 emits an X-ray sensing signal, it means that there is no positional deviation of the X-rays emitted by the treatment head 1.

[0058] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0059] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A measuring tool for a radiotherapy device, comprising an assembly plate mounted on the bottom of the treatment head, characterized in that, A measuring rod is inserted into one side of the assembly plate. An adjusting rod is fixedly connected to the end of the measuring rod away from the assembly plate. Multiple sets of linearly arranged rotating rings are rotatably connected to the outer wall of the adjusting rod. A first rotating rod and a second rotating rod are fixedly connected to the outer wall of the rotating ring. The first rotating rod and the second rotating rod form a "V" shaped profile with an included angle of 120 degrees. The first rotating rod, the second rotating rod, and the rotating ring are an integrally manufactured structure. A measuring component for measuring the mechanical error of the treatment head, the measuring component being connected to the first rotating rod and the second rotating rod respectively; The measuring component includes a first limiting ring and a second limiting ring fixedly connected to the first rotating rod and the second rotating rod, respectively. The size of the first limiting ring and the second limiting ring decreases from top to bottom. A measuring cylinder and a positioning cylinder are rotatably connected to the first limiting ring and the second limiting ring, respectively. A base is rotatably connected to the first limiting ring located at the bottom of the adjusting rod. An X-ray sensor is fixedly connected to the middle position of the base. The top of the measuring cylinder has a first mounting groove that matches the size of the first limiting ring, and the bottom of the measuring cylinder has several slots. Each of the slots has a plate inserted into it. A detection plate and an outer plate are fixedly connected to both sides of the plate, wherein the detection plate is located on the inner wall of the measuring cylinder and the outer plate is located on the outer wall of the measuring cylinder. The height of the detection plate is the same as the height of the measuring cylinder, and several detection plates are arranged to form a complete circumference on the inner wall of the measuring cylinder; The top of the positioning cylinder has a second mounting groove that matches the size of the second limiting ring, and the bottom of the positioning cylinder has a third mounting groove. A base plate is inserted into the third mounting groove, and an adapter plate is fixedly connected to the top of the base plate. The positioning cylinder has a fourth mounting groove that matches the contour of the adapter plate. An inner plate is fixedly connected to the inner wall of the adapter plate, and an mounting strip is slidably connected to the inner plate. An X-ray sensing film is installed in the mounting strip.

2. The measuring tool for radiotherapy equipment according to claim 1, characterized in that, A mounting plate is fixedly connected to the bottom of the treatment head. A mounting rod and a stop rod are fixedly connected to the outer wall of the mounting plate from top to bottom. An assembly rod is fixedly connected to the top of the assembly plate. A hole matching the size of the mounting rod is drilled through the assembly rod. The position of the stop rod corresponds to the position of the end of the assembly rod. The treatment head and the assembly plate are fixedly connected by the mounting rod and the assembly rod. A threaded cylinder is fixedly connected to the outer wall of the assembly plate. A threaded rod is fixedly connected to one end of the measuring rod near the assembly plate. A threaded sleeve is screwed onto the outer wall of the threaded cylinder. The threaded rod consists of two rod bodies. The rod body near the measuring rod has a size matching the inner circumference of the threaded sleeve and has threads on its outer wall. The other rod body has a size matching the inner circumference of the threaded cylinder. The assembly plate and the measuring rod are connected by the threaded rod and the threaded cylinder, and fixed by the threaded sleeve.

3. The measuring tool for radiotherapy equipment according to claim 1, characterized in that, A limiting groove is formed on the outer wall of the adjusting rod. The rotating ring and the adjusting rod are rotatably connected through the limiting groove. A stop block is fixedly connected to the outer wall of both the first rotating rod and the second rotating rod. The stop block consists of a rod body and a ball. The ball of the stop block on the first rotating rod faces upward, and the ball of the stop block on the second rotating rod faces downward. A limiting plate is fixedly connected to the outer wall of the adjusting rod. There are four limiting plates in total. The four limiting plates are divided into two groups of two, and the two groups of limiting plates are located at the top and bottom of the limiting groove, respectively. The included angle between each group of limiting plates is 120 degrees.

4. The measuring tool for radiotherapy equipment according to claim 3, characterized in that, The top of the adapter plate is fixedly connected to an adapter head. The top of the fourth mounting slot is provided with an adapter groove that matches the size of the adapter head. The sides of the adapter groove are provided with clearance grooves. The bottom of the positioning cylinder is symmetrically provided with snap-fit ​​grooves.

5. The measuring tool for radiotherapy equipment according to claim 4, characterized in that, The inner plate has a plurality of straight sliding grooves, the depth of which increases progressively. A straight sliding block, which is adapted to the position and size of the straight sliding groove, is fixedly connected to the outer wall of the mounting strip. The mounting strip and the inner plate are connected by the straight sliding groove and the straight sliding block.

6. The measuring tool for radiotherapy equipment according to claim 5, characterized in that, The top of the mounting strip has an inwardly sloping surface, the middle position of the mounting strip has a concave arc-shaped profile, and the bottom dimension of the mounting strip is larger than the top dimension.

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