Detection tool for maintenance of medical linear accelerator

Abstract

The utility model discloses a detection tool for maintenance of a medical linear accelerator, which structurally comprises a tool main body, and a display screen is fixedly mounted on the surface of the tool main body; and the supporting assembly comprises a leg A, the leg A is fixedly connected to the bottom of the tool body, and a sliding block is fixedly connected to the surface of the leg A. When the tool is used, the heights of the different supporting assemblies are adjusted according to distance data measured by the distance sensor so that the tool body can be kept horizontal, and then the photosensitive film is fixed in the photosensitive groove through the fixing assembly to prevent the photosensitive film from warping in the using process. X-rays emitted by the medical linear accelerator treatment head are radiated on the photosensitive film for one or more times, and the photosensitive film is taken out and can be digitally read through a special scanner and analysis software, so that non-uniform absorption caused by displacement or upwarp of the photosensitive film during use is prevented, and the service life of the photosensitive film is prolonged. Therefore, the measurement precision of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection tooling for repairing a medical linear accelerator, in particular to a detection tooling for repairing a medical linear accelerator. Background Art

[0002] Medical linear accelerator is an advanced medical device used for tumor radiotherapy. It plays an important role in tumor treatment by generating high-energy X-rays and electron beams to fight tumor cells. In order to ensure the quality and accuracy of the X-ray beam or electron beam generated by the accelerator, to provide the correct dose to the patient and avoid excessive or insufficient doses that affect the treatment effect, it is necessary to detect the medical linear accelerator. Photosensitive film is usually used for medical linear accelerator detection. Photosensitive film has advantages in spatial resolution and can provide detailed two-dimensional dose distribution images.

[0003] However, the currently commonly used method of placing a photosensitive film on a treatment bed for testing may cause the photosensitive film to shift or warp when the treatment bed moves, and may cause the photosensitive film to tilt, resulting in uneven absorption of radiation, thereby affecting the final data accuracy. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, in order to solve the above technical problems, the utility model provides the following technical solutions: a medical linear accelerator maintenance detection tool, the medical linear accelerator maintenance detection tool comprising:

[0006] A tooling body, a display screen being fixedly mounted on the surface of the tooling body;

[0007] A support assembly, comprising an A leg, wherein the A leg is fixedly connected to the bottom of the tooling body, a slider is fixedly connected to the surface of the A leg, a B leg is slidably connected to the surface of the slider, a cavity is provided inside the B leg, a driving gear is rotatably connected to the cavity through a rotating rod, a hand is installed on one side of the driving gear, a driven gear is meshed on the surface of the driving gear, a screw is fixedly connected to the top of the driven gear, and the A leg is threadedly connected to the surface of the screw;

[0008] The fixing assembly comprises a connecting rod, a spring is sleeved on the surface of the connecting rod, one end of the spring is fixedly connected with a pressing block, the pressing block is fixedly connected to the connecting rod, and the bottom of the pressing block is movably connected with a photosensitive film.

[0009] As a preferred solution of the inspection tool for repairing a medical linear accelerator described in the utility model, wherein: a fixed block is fixedly connected to the bottom of the B leg, a rectangular groove is provided on one side of the fixed block, a fixed rod is rotatably connected to the rectangular groove through a rotating rod, a threaded groove is provided at one end of the fixed rod, and a nut is threadedly connected to the threaded groove.

[0010] As a preferred solution of the medical linear accelerator maintenance inspection tool of the utility model, wherein: a treatment bed plate is movably connected below the fixed block, and an arc groove is opened on the surface of the treatment bed plate.

[0011] As a preferred solution of the medical linear accelerator maintenance inspection tool of the utility model, a photosensitive groove is provided on the top of the tool body, and the photosensitive film is arranged in the photosensitive groove.

[0012] As a preferred solution of the medical linear accelerator maintenance inspection tooling of the utility model, a groove is provided on the top of the tooling body, the connecting rod is inserted into the groove, a through groove is provided on the inner side wall of the groove, and the through groove connects the groove with the photosensitive groove.

[0013] As a preferred solution of the medical linear accelerator maintenance inspection tool of the utility model, a mounting groove is also provided at the bottom of the tool body, a distance sensor is arranged in the mounting groove, and the distance sensor and the display screen are connected by telecommunication.

[0014] Beneficial effects of the utility model:

[0015] When in use, rotate the fixing rod to clamp it into the arc groove, and then tighten the nut in the threaded groove to fix the tooling body on the treatment bed board, and then adjust the height of different supporting components according to the distance data measured by the distance sensor to keep the tooling body level, and then fix the photosensitive film in the photosensitive groove through the fixing component to prevent it from warping during use, and then irradiate the photosensitive film with X-rays emitted by the medical linear accelerator treatment head once or multiple times, and then release the pressure block to press the photosensitive film to take out the photosensitive film, and then the photosensitive film can be digitally read through a special scanner and analysis software, thereby preventing the photosensitive film from shifting or warping during use and causing uneven absorption, thereby increasing the measurement accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of the detection tooling for repairing a medical linear accelerator.

[0018] Figure 2 The utility model is a schematic diagram of the structure of the detection tool support assembly for repairing a medical linear accelerator.

[0019] Figure 3 The utility model is a structural schematic diagram of a fixing block of a detection tool for repairing a medical linear accelerator.

[0020] Figure 4 The utility model is a schematic diagram of the structure of the fixing assembly of the detection tool for repairing a medical linear accelerator.

[0021] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of a distance sensor of a detection tool for repairing a medical linear accelerator.

[0022] In the figure: 100, tooling body; 101, display screen; 102, distance sensor;

[0023] 200, support assembly; 201, A leg; 202, slider; 203, B leg; 2031, fixing block; 2032, fixing rod; 2033, nut; 2034, treatment bed board; 204, driving gear; 205, driven gear; 206, screw;

[0024] 300, fixed assembly; 301, connecting rod; 302, spring; 303, pressure block; 304, photosensitive film. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example 1

[0029] Reference Figure 1-5 , which is the first embodiment of the utility model, provides a medical linear accelerator maintenance detection tooling, the structure of which includes:

[0030] The tooling body 100 has a display screen 101 fixedly mounted on its surface. The display screen 101 analyzes and displays the data of the distance sensor 102, so that the staff can directly observe whether the tooling body 100 is in a horizontal state;

[0031] The support assembly 200 includes an A leg 201, which is fixedly connected to the bottom of the tooling body 100. A slider 202 is fixedly connected to the surface of the A leg 201, and a B leg 203 is slidably connected to the surface of the slider 202. A cavity is provided inside the B leg 203, and a driving gear 204 is rotatably connected to the cavity through a rotating rod. A hand is installed on one side of the driving gear 204, and a driven gear 205 is meshed on the surface of the driving gear 204. A screw rod 206 is fixedly connected to the top of the driven gear 205. The A leg 201 is threadedly connected to the surface of the screw rod 206. When in use, the hand is rotated to drive the driving gear 204 to rotate, and the driving gear 204 drives the driven gear 205 to rotate, and the driven gear 205 drives the screw rod 206 to rotate, so that the A leg 201 moves upward on the surface of the screw rod 206. The inclination of the tooling body 100 can be adjusted by adjusting the height of the A leg 201.

[0032] The fixing assembly 300 includes a connecting rod 301. A spring 302 is sleeved on the surface of the connecting rod 301. One end of the spring 302 is fixedly connected to a pressure block 303. The pressure block 303 is fixedly connected to the connecting rod 301. The bottom of the pressure block 303 is movably connected to a photosensitive film 304. When in use, the connecting rod 301 is pressed downward, the spring 302 is forced to shrink, and the pressure block 303 moves downward at the same time. The connecting rod 301 is then rotated to make the pressure block 303 press the photosensitive film 304. The photosensitive film 304 is irradiated once or multiple times by the X-rays emitted by the medical linear accelerator treatment head. The emulsion layer on the film will turn black due to absorbing radiation. The connecting rod 301 is rotated in the opposite direction to make the pressure block 303 release and press the photosensitive film 304. At this time, the spring 302 is not forced to drive the connecting rod 301 to rebound, so that the photosensitive film 304 can be taken out, and then the photosensitive film 304 can be digitally read through a dedicated scanner and analysis software.

[0033] Furthermore, a fixing block 2031 is fixedly connected to the bottom of the B leg 203, a rectangular groove is provided on one side of the fixing block 2031, a fixing rod 2032 is rotatably connected in the rectangular groove through a rotating rod, a threaded groove is provided at one end of the fixing rod 2032, a nut 2033 is threadedly connected in the threaded groove, the fixing block 2031 is placed on the treatment bed board 2034, the fixing rod 2032 is rotated to clamp it into the arc groove, and then the nut 2033 is tightened in the threaded groove, so that the fixing block 2031 is fixed to the treatment bed board 2034.

[0034] Furthermore, a treatment bed plate 2034 is movably connected below the fixing block 2031 , and an arc groove is provided on the surface of the treatment bed plate 2034 , which facilitates the embedding of the fixing rod 2032 , thereby facilitating the fixation of the fixing block 2031 .

[0035] Furthermore, a photosensitive groove is opened on the top of the tooling body 100, and the photosensitive film 304 is arranged in the photosensitive groove. By placing the photosensitive film 304 in the photosensitive groove, the position of the photosensitive film 304 can be fixed to prevent the photosensitive film 304 from warping or shifting during the detection process.

[0036] Furthermore, a groove is provided on the top of the tooling body 100, and the connecting rod 301 is inserted into the groove. A through groove is provided on the inner wall of the groove, and the through groove connects the groove with the photosensitive groove. After pressing the connecting rod 301, it is rotated to make the pressure block 303 pass through the through groove from the groove and enter the photosensitive groove, thereby pressing the photosensitive film 304.

[0037] Furthermore, a mounting groove is provided at the bottom of the tooling body 100, in which a distance sensor 102 is arranged. The distance sensor 102 and the display screen 101 are connected by telecommunication. The distance between the two ends of the tooling body 100 and the treatment bed board 2034 is measured by the distance sensor 102, and the data is analyzed and displayed on the display screen 101. The height of the A leg 201 and the B leg 203 can be adjusted according to the data.

[0038] During use, first, the tool body 100 is placed, the fixing block 2031 is placed on the treatment bed board 2034, the fixing rod 2032 is rotated to clamp it into the arc groove, and then the nut 2033 is tightened in the threaded groove, so that the fixing block 2031 and the B leg 203 are fixed on the treatment bed board 2034, and then the distance sensor 102 is used to measure the distance between the two ends of the tool body 100 and the treatment bed board 2034, and the data analysis is displayed on the display screen 101;

[0039] Then, the height of different support components 200 is adjusted according to the data of the display screen 101, the handle is turned to drive the driving gear 204 to rotate, the driving gear 204 drives the driven gear 205 to rotate, and the driven gear 205 drives the screw 206 to rotate, so that the A leg 201 moves upward on the surface of the screw 206, and the inclination of the tooling body 100 can be adjusted by adjusting the height of the A leg 201;

[0040] Finally, place the photosensitive film 304 in the photosensitive groove, press the connecting rod 301 downward, and move the pressure block 303 downward at the same time. Then rotate the connecting rod 301 to make the pressure block 303 pass through the through groove and press the photosensitive film 304. Then, irradiate the photosensitive film 304 with X-rays emitted by the medical linear accelerator treatment head once or multiple times. The emulsion layer on the film will turn black due to absorbing radiation. Then rotate the connecting rod 301 in the opposite direction to make the pressure block 303 release the photosensitive film 304. At this time, the spring 302 is not under force and drives the connecting rod 301 to rebound, so that the photosensitive film 304 can be taken out. Subsequently, the photosensitive film 304 can be digitally read through a dedicated scanner and analysis software.

[0041] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A medical linear accelerator maintenance inspection tool, characterized by: include, A tool body (100), a display screen (101) being fixedly mounted on a surface of the tool body (100); The support assembly (200) comprises an A leg (201), wherein the A leg (201) is fixedly connected to the bottom of the tooling body (100), a slider (202) is fixedly connected to the surface of the A leg (201), a B leg (203) is slidably connected to the surface of the slider (202), a cavity is provided inside the B leg (203), a driving gear (204) is rotatably connected to the cavity via a rotating rod, a handle is installed on one side of the driving gear (204), a driven gear (205) is meshed on the surface of the driving gear (204), a screw rod (206) is fixedly connected to the top of the driven gear (205), and the A leg (201) is threadedly connected to the surface of the screw rod (206); The fixing assembly (300) comprises a connecting rod (301), a spring (302) being sleeved on the surface of the connecting rod (301), a pressing block (303) being fixedly connected to one end of the spring (302), the pressing block (303) being fixedly connected to the connecting rod (301), and a photosensitive film (304) being movably connected to the bottom of the pressing block (303).

2. The medical linear accelerator maintenance inspection tool as claimed in claim 1, characterized in that: A fixing block (2031) is fixedly connected to the bottom of the B leg (203), a rectangular groove is provided on one side of the fixing block (2031), a fixing rod (2032) is rotatably connected in the rectangular groove via a rotating rod, a threaded groove is provided at one end of the fixing rod (2032), a nut (2033) is threadedly connected in the threaded groove.

3. The medical linear accelerator maintenance inspection tool as claimed in claim 2, characterized in that: A treatment bed plate (2034) is movably connected below the fixed block (2031), and an arc-shaped groove is provided on the surface of the treatment bed plate (2034).

4. The medical linear accelerator maintenance inspection tool as claimed in claim 1, characterized in that: A photosensitive groove is provided on the top of the tool body (100), and the photosensitive film (304) is arranged in the photosensitive groove.

5. The medical linear accelerator maintenance inspection tool as claimed in claim 1, characterized in that: A groove is provided on the top of the tool body (100), the connecting rod (301) is inserted into the groove, and a through groove is provided on the inner side wall of the groove, the through groove connecting the groove with the photosensitive groove.

6. The medical linear accelerator maintenance inspection tool as claimed in claim 1, characterized in that: The bottom of the tool body (100) is also provided with a mounting groove, in which a distance sensor (102) is arranged, and a telecommunication connection is established between the distance sensor (102) and the display screen (101).

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