Film scale device

Abstract

The utility model relates to the technical field of radiotherapy, and discloses a film calibration device. Comprising a fixing base, a radiation assembly, a film fixing table and an optical filter. The radiation assembly is movably arranged on the fixed seat and comprises a radiation piece, and the radiation piece is used for emitting radioactive rays; the film fixing table is arranged on the fixing seat and corresponds to the radiation assembly in position; the optical filter is located on the film fixing table; wherein the film is installed on the film fixing table, and the laser emitted by the radiation piece passes through the optical filter and then leaves a dose distribution pattern on the film. The radiation part can move on the fixed seat, so that the position of the radiation part is adjusted, and the radiation part can always correspond to the position of the optical filter. Through the arrangement, radioactive rays can be irradiated on the film through the optical filter, the optical filter controls the intensity and energy distribution of the radioactive rays, and dose distribution is accurately recorded on the slow photosensitive film, so that a dose distribution pattern is left on the film.

Description

Technical Field

[0001] The utility model relates to the technical field of radiotherapy, in particular to a film graduation device. Background Art

[0002] The film scale is a device used to determine the film exposure dose. During radiotherapy, doctors use radiation to irradiate specific parts of the patient, and slow-sensitivity film is used to record the distribution of radiation doses, helping doctors evaluate the treatment effect and adjust the treatment plan. The film scale is a device used to ensure that the film exposure is accurate. It usually includes structures such as filters, comparison plates, and positioning devices. The positioning device is used to accurately place the film and adjust the intensity and energy of the radiation through the filter. These structures work together to ensure that the film exposure is accurate.

[0003] However, in current film scale devices, if the position of the ray is inconsistent with the position of the film, the ray cannot accurately pass through the filter and irradiate the film, which will lead to inaccurate measurement of dose distribution information. Utility Model Content

[0004] The embodiment of the utility model aims to provide a film scale device to solve the technical problem that in the prior art, the brightness of the light and the volume of the speaker are adjusted by pressing the switch multiple times to adjust the gear, and multiple presses are required from the lowest gear to the highest gear, which is troublesome to operate.

[0005] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0006] A film scale device is provided, comprising:

[0007] Fixed seat;

[0008] A radiation component, the radiation component is movably arranged on a fixed seat, the radiation component comprises a radiation element, and the radiation element is used to emit radiation;

[0009] A film fixing platform, which is arranged on the fixing seat and corresponds to the position of the radiation component;

[0010] A filter, the filter being located on the film fixing platform;

[0011] The film is mounted on a film fixing table, and the laser emitted by the radiation element leaves a dose distribution pattern on the film after passing through the filter.

[0012] In some embodiments, the radiation assembly further comprises a mounting frame and a sliding seat;

[0013] The mounting frame is mounted on the fixing seat, and the sliding seat is connected to the radiating member;

[0014] The sliding seat is slidably connected to the mounting frame.

[0015] In some embodiments, the radiation assembly further comprises a first motor and a moving rod, wherein the first motor is connected to the moving rod;

[0016] The moving rod is passed through the mounting frame, and the moving rod is fixedly connected to the sliding seat;

[0017] The moving rod can drive the sliding seat to slide on the mounting frame.

[0018] In some embodiments, a slide rail is provided on the fixing seat, and the film fixing platform is slidably connected to the slide rail.

[0019] In some embodiments, a receiving groove is provided on the film fixing platform, and the film can be received in the film fixing platform through the receiving groove.

[0020] In some embodiments, a hollow portion is formed on the top of the film fixing platform, and the filter cover is disposed on the hollow portion so that the filter is located on the top of the film.

[0021] In some embodiments, a comparison plate is provided on the film fixing table, and the film is located on top of the comparison plate.

[0022] In some embodiments, an abutment wall is disposed on the film fixing platform, and the abutment wall and the optical filter abut against each other to fix the optical filter on the film fixing platform.

[0023] In some embodiments, the filter is one of a hardening filter, a softening filter, and a balancing filter.

[0024] In some embodiments, the radiation element emits one of an X-ray source and a gamma ray.

[0025] Compared with the prior art, in the film scale device provided in the embodiment of the utility model, the film is placed on the film fixing table, and the filter is placed on the top of the film. The position of the radioactive element corresponds to that of the film fixing table, so that the radiation emitted by the radioactive element can move toward the filter and the film. In addition, the radioactive element can be moved on the fixing seat, so as to adjust the position of the radioactive element so that the radioactive element can always correspond to the position of the filter. Through such an arrangement, the radiation can be irradiated onto the film through the filter, the filter controls the intensity and energy distribution of the radiation, and accurately records the dose distribution on the slow-sensitive film, thereby leaving a dose distribution pattern on the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0027] Figure 1 It is a structural schematic diagram of a film scale device provided by one embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the assembly of a film fixing table and a radiation component provided in one embodiment of the utility model;

[0029] Figure 3 It is a structural schematic diagram of a radiation assembly provided by one embodiment of the utility model;

[0030] Figure 4 It is a structural schematic diagram of a film fixing platform provided in one embodiment of the utility model.

[0031] Reference numerals:

[0032] 100, film scale device; 10, fixing seat; 11, slide rail; 20, radiation assembly; 21, radiation part; 22, mounting frame; 23, sliding seat; 24, first motor; 25, moving rod; 30, film fixing table; 31, receiving groove; 32, hollow part; 33, abutting wall; 34, comparison plate; 40, filter. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connecting" another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0035] In the embodiment of the utility model, the film scale device can be used to determine the film exposure dose.

[0036] Combine the following Figures 1 to 4 , the film scale device provided in the embodiment of the present application is described in detail through specific examples.

[0037] Please also read Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 It is a structural schematic diagram of a film scale device provided by one embodiment of the utility model; Figure 2 It is a schematic diagram of the assembly of a film fixing table and a radiation component provided in one embodiment of the utility model; Figure 3 It is a structural schematic diagram of a radiation assembly provided by one embodiment of the utility model; Figure 4 It is a structural schematic diagram of a film fixing table provided in one embodiment of the present invention. A film scale device 100 provided in one embodiment of the present invention includes a fixing seat 10, a radiation component 20, a film fixing table 30 and a filter 40. The radiation component 20 is movably arranged on the fixing seat 10, and the radiation component 20 includes a radiation component 21, and the radiation component 21 is used to emit radiation; the film fixing table 30 is arranged on the fixing seat 10 and corresponds to the position of the radiation component 20; the filter 40 is located on the film fixing table 30; wherein, the film is mounted on the film fixing table 30, and the laser emitted by the radiation component 21 leaves a dose distribution pattern on the film after passing through the filter 40.

[0038] Among them, the film is slow-sensitivity film, which is a film with relatively low sensitivity. Its main advantages are high resolution, good color reproduction, and the ability to provide high-quality images. Before the patient receives radiotherapy, the slow-sensitivity film is placed on the patient's body part, such as the head or chest. During the exposure process, the slow-sensitivity film has a lower sensitivity to radiation, so a longer exposure time is required to obtain the image. When the patient is irradiated, the radiotherapy equipment emits radiation, which exposes the film. By measuring the exposure on the film, the radiotherapy team can determine whether the actual irradiation location and dose distribution are consistent with the plan. By comparing the image on the slow-sensitivity film with the theoretical image in the plan, the doctor and the radiotherapy team can evaluate the accuracy of the treatment and make necessary adjustments. This ensures that the radiation dose received by the patient is accurate and maximizes the protection of patient health and safety.

[0039] The radiation assembly 20 includes a radiation element 21, which is used to emit radiation. During radiotherapy, a slow-sensitivity film is placed in a specific position in the patient's body or near a radiation source. When the radiation is emitted and passes through this specific position, it will irradiate the slow-sensitivity film.

[0040] In this embodiment, the film is placed on the film fixing table 30, and the filter 40 is placed on top of the film. The position of the radiation element 21 corresponds to the film fixing table 30, so that the radiation emitted by the radiation element 21 can move toward the filter 40 and the film. In addition, the radiation element 21 can be moved on the fixing seat 10, so as to adjust the position of the radiation element 21, so that the radiation element 21 can always correspond to the position of the filter 40. Through such a setting, the radiation can be irradiated on the film through the filter 40, the filter 40 controls the intensity and energy distribution of the radiation, and accurately records the dose distribution on the slow-sensitive film, thereby leaving a dose distribution pattern on the film.

[0041] In some embodiments, the radiation assembly 20 further includes a mounting frame 22 and a sliding seat 23 ; the mounting frame 22 is mounted on the fixed seat 10 , and the sliding seat 23 is connected to the radiation member 21 ; the sliding seat 23 is slidably connected to the mounting frame 22 .

[0042] The mounting frame 22 is fixed on the fixing seat 10, and the sliding seat 23 is connected to the radiation member 21, so that the sliding seat 23 can drive the radiation member 21 to slide on the mounting frame 22, so that the radiation member 21 can be adjusted in position on the mounting frame 22. Through such a setting, the position of the radiation member 21 is adjusted so that the radiation member 21 can always keep corresponding to the position of the filter 40, so that the radiation emitted by the radiation member 21 can accurately pass through the filter 40 and move to the film.

[0043] Specifically, a protrusion is provided on the sliding seat 23 , and a groove is provided on the mounting frame 22 . The protrusion is received in the groove, so that the sliding seat 23 can move on the mounting frame 22 .

[0044] In some embodiments, the radiation assembly 20 further includes a first motor 24 and a moving rod 25, wherein the first motor 24 is connected to the moving rod 25; the moving rod 25 is passed through the mounting frame 22, and the moving rod 25 is fixedly connected to the sliding seat 23; wherein the moving rod 25 can drive the sliding seat 23 to slide on the mounting frame 22. After starting the first motor 24, the first motor 24 can drive the moving rod 25 to extend and retract, and at this time, the sliding seat 23 fixed on the moving rod 25 can move synchronously with the moving rod 25, and when the sliding seat 23 moves, it specifically moves on the mounting frame 22. Through such a setting, the first motor 24 can drive the sliding seat 23 to move to adjust the position of the radiation component 21, thereby improving the precision of the position adjustment.

[0045] In some embodiments, a slide rail 11 is provided on the fixing seat 10, and the film fixing platform 30 is slidably connected to the slide rail 11. The slide rail 11 is orthogonally arranged on the fixing seat 10 and the mounting frame 22, so that the film fixing platform 30 can move along the Z axis on the slide rail 11. Through such an arrangement, the film fixing platform 30 can adjust its position along the Z axis on the slide rail 11. At this time, the position of the radiation component 21 is adjusted on the X axis, which can further keep the positions of the film fixing seat 10 and the radiation component 21 consistent.

[0046] In some embodiments, the film fixing platform 30 is provided with a receiving groove 31, and the film can be received in the film fixing platform 30 through the receiving groove 31. By providing the receiving groove 31 on the film fixing platform 30, the film can be received in the receiving groove 31, so that the film can be fixed and prevented from being shifted in position.

[0047] In some embodiments, a hollow portion 32 is formed on the top of the film fixing platform 30 , and the optical filter 40 is covered on the hollow portion 32 , so that the optical filter 40 is located on the top of the film.

[0048] The hollow portion 32 is located at the top of the receiving groove 31 . When the film is received in the receiving groove 31 , the hollow portion 32 can prevent the filter element and the film from being blocked, and the radiation can be irradiated onto the film through the filter 40 .

[0049] In some embodiments, a comparison plate 34 is provided on the film fixing table 30, and the film is located on the top of the comparison plate 34. In radiotherapy, the comparison plate 34 can play an important role in calibrating and verifying the exposure system. The comparison plate 34 is a standard plate with a known grayscale or color value, usually including a series of grayscale gradations and color standards. Its purpose is to calibrate the sensitivity and accuracy of the radiotherapy film exposure device. When using the radiotherapy film scale device 100, the comparison plate 34 is placed on the film fixing table 30 together with the radiotherapy film and is exposed to radiation at the same time. The radiotherapy film and the comparison plate 34 will be exposed to the same radiation to ensure the accuracy of the radiation dose. The grayscale gradations and color standards on the comparison plate 34 have known grayscale or color values, and doctors and technicians can evaluate the accuracy and image quality of the radiotherapy film exposure device by comparing the image on the comparison plate 34 with the image on the radiotherapy film. If the image on the comparison plate 34 is inconsistent with the image on the radiotherapy film, adjustments may be required to ensure accurate radiotherapy dose distribution.

[0050] Specifically, the comparison plate 34 is used to calibrate and verify the sensitivity and accuracy of the device. It is used in conjunction with the radiotherapy film to evaluate the accuracy and image quality of the radiotherapy film exposure device by comparing the image on the comparison plate 34 with the image on the radiotherapy film. The presence of the comparison plate 34 ensures the accurate distribution of the radiotherapy dose, thereby ensuring the accuracy and safety of radiotherapy.

[0051] In some embodiments, the film fixing platform 30 is provided with an abutting wall 33, and the abutting wall 33 abuts against the optical filter 40 to fix the optical filter 40 on the film fixing platform. The abutting wall 33 abuts against the optical filter 40 to fix the optical filter 40 on the film fixing platform.

[0052] In some embodiments, the filter 40 is one of a hardening filter 40, a softening filter 40, and a balancing filter 40. The filter 40 can help doctors accurately control the dose distribution of radiation to adapt to different treatment needs and goals. Among them, the hardening filter 40 is made of a material with a high atomic number, such as metals such as tungsten and platinum. They are mainly used to increase the quality of high-energy rays (such as X-rays or gamma rays) so that they can penetrate deeper into the patient's body and provide more effective treatment. The softening filter 40 is usually made of materials such as aluminum or molybdenum to reduce the quality of high-energy rays. This helps to reduce the dose in the transmission of the rays, making it more suitable for the treatment of shallow tissues or sensitive areas. The balancing filter 40 is composed of different materials and is intended to balance the dose distribution of rays of different energies during radiotherapy. By using the balancing filter 40, doctors can produce uniform and appropriate doses of rays in the radiation beam to ensure that the entire treatment area is properly irradiated.

[0053] According to different treatment requirements and equipment configurations, appropriate filters 40 may be selected for combination and use.

[0054] In some embodiments, the radiation element 21 emits one of an X-ray source and a gamma ray. The X-ray source or the gamma ray can be selected according to the energy, penetrating power and dose distribution of the radiation. The energy of the radiation determines its ability to penetrate matter. For different treatment targets, appropriate energy can be selected. For example, higher energy X-rays or gamma rays can better penetrate deep tissues and are more suitable for treating deep tumors. For superficial tumors, lower energy radiation can be selected. The penetrating power of radiation of different energies in different tissues is also different. Selecting the appropriate radiation energy can ensure that the radiation penetrates the patient's body surface and surrounding tissues to reach the target tumor area. If the selected energy penetrating power is too strong or too weak, it may cause the radiation to fail to reach the target area or excessively damage the surrounding tissues. The dose distribution of radiation in the patient's body is also a factor to be considered. The dose distribution of radiation of different energies in the body may be different, so it is necessary to select the appropriate radiation energy according to the treatment plan and the location of the target tumor.

[0055] It should be particularly noted that the film scale device 100 provided in the embodiment of the present invention only shows the part related to the technical problem to be solved by the embodiment of the present invention. It can be understood that the film scale device 100 provided in the embodiment of the present invention also includes other structures for realizing the functions of the film scale device 100.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A film scale device, characterized in that: include: Fixed seat; A radiation component, the radiation component is movably arranged on a fixed seat, the radiation component comprises a radiation element, and the radiation element is used to emit radiation; A film fixing platform, which is arranged on the fixing seat and corresponds to the position of the radiation component; A filter, the filter being located on the film fixing platform; The film is mounted on a film fixing table, and the laser emitted by the radiation element leaves a dose distribution pattern on the film after passing through the filter.

2. The film scale device according to claim 1, characterized in that: The radiation assembly also includes a mounting frame and a sliding seat; The mounting frame is mounted on the fixing seat, and the sliding seat is connected to the radiating member; The sliding seat is slidably connected to the mounting frame.

3. The film scale device according to claim 2, characterized in that: The radiation assembly further includes a first motor and a moving rod, wherein the first motor is connected to the moving rod; The moving rod is passed through the mounting frame, and the moving rod is fixedly connected to the sliding seat; The moving rod can drive the sliding seat to slide on the mounting frame.

4. The film scale device according to claim 3, characterized in that: The fixing seat is provided with a slide rail, and the film fixing platform is slidably connected with the slide rail.

5. The film scale device according to claim 4, characterized in that: The film fixing platform is provided with a receiving groove, and the film can be received in the film fixing platform through the receiving groove.

6. The film scale device according to claim 5, characterized in that: A hollow portion is provided on the top of the film fixing platform, and the optical filter cover is arranged on the hollow portion so that the optical filter is located on the top of the film.

7. The film scale device according to claim 6, characterized in that: A comparison plate is arranged on the film fixing platform, and the film is located on the top of the comparison plate.

8. The film scale device according to claim 7, characterized in that: The film fixing platform is provided with an abutting wall, and the abutting wall and the optical filter abut against each other to fix the optical filter on the film fixing platform.

9. The film scale device according to claim 1, characterized in that: The filter is one of a hardening filter, a softening filter, and a balancing filter.

10. The film scale device according to claim 1, characterized in that: The radiation element emits one of an X-ray source and a gamma ray.

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