Fixing and adjusting device for detecting X-ray radiography quality die body

Abstract

The utility model discloses a fixing and adjusting device of a die body for detecting X-ray radiography quality, which comprises a supporting assembly and a fixing assembly, and the supporting assembly is rotatably connected with a clamping ring; the clamping ring is used for placing an image quality test disc; the fixing assembly is used for fixing the supporting assembly on a treatment bed. The X-ray quality evaluation device does not need to be placed on a treatment bed for detection, can more accurately evaluate the X-ray quality, and ensures that the irradiation angle and the quality of X-rays used in the treatment process meet medical standards. Irradiation of X-rays to a human body at different angles can be simulated, and an expected treatment effect can be achieved in actual treatment.

Description

Technical Field

[0001] The utility model relates to the field of medical device tooling equipment, and particularly relates to a fixing and adjusting device for a quality phantom for detecting X-ray radiography. Background Art

[0002] The TOR 18FG phantom is a phantom dedicated to detecting the quality of X-ray radiography, including a disc-shaped phantom and a 1-mm-thick copper plate. There are 18 discs with a diameter of 8 mm on the disc-shaped phantom for detecting low-contrast resolution, and the detection range is 0.9% to 16%; 21 groups of thin lines are used to detect resolution, with 5 thin lines in each group, and the detection range is 0.5 to 5 LP / mm. The copper plate is mainly used for filtration. After exposure, by counting the number of small discs that can be clearly distinguished on the image and referring to the comparison table provided by the manufacturer, the value of low-contrast resolution can be read. The more small discs that can be displayed, the better the low-contrast resolution. In the white small square in the center of the image, read the stripe serial numbers that can be clearly distinguished in the order from top to bottom and then from left to right, and check the stripe-resolution comparison table provided by the manufacturer to determine the value of planar spatial resolution.

[0003] As a conventional test phantom, the TOR 18FG phantom can quickly and simply continuously detect the imaging performance of the system on a weekly or monthly basis, especially for those devices that rely on regular maintenance. After the initial gray-level detection is completed, only the details of the detected image and the number of bar charts need to be counted to quantify the image quality. Continuous tracking and recording of these data will help users track the performance of the system and make timely predictions and calibrations for possible problems. Therefore, the TOR 18FG phantom has been widely used.

[0004] However, in the prior art, the TOR 18FG phantom is not fixed by a special tooling, but is directly placed on the treatment couch board for detection, which affects the accuracy of the test results. Since the irradiation quality of X-rays at different angles is crucial for the treatment effect, it is impossible to simulate different angles when placed on the treatment couch. Summary of the Utility Model

[0005] To solve the above problems, the utility model provides a fixing and adjusting device for a quality phantom for detecting X-ray radiography, which can be detected without being placed on the treatment couch, can more accurately evaluate the quality of X-rays, and ensure that the X-ray irradiation angle and quality used in the treatment process meet medical standards.

[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows: A fixing and adjusting device for a quality phantom of X-ray radiography, comprising a support assembly and a fixing assembly. A clamping ring is rotatably connected to the support assembly; the clamping ring is used for placing an image quality test disk; the fixing assembly is used for fixing the support assembly on the treatment bed.

[0007] As a preferred technical solution of the present utility model: The support assembly includes a support frame and a support block; the support frame includes a first support plate and a second support plate, and the first support plate and the second support plate are connected by a connecting plate; the support block is arranged outside the first support plate; the support block is used for connecting with the treatment bed.

[0008] As a preferred technical solution of the present utility model: The fixing assembly includes two groups of fixing clips; each fixing clip includes a clip body, and a screw rod is rotatably connected to the upper end of the clip body.

[0009] As a preferred technical solution of the present utility model: The clamping ring is connected to the first support plate and the second support plate through nuts.

[0010] As a preferred technical solution of the present utility model: A plurality of screws are arranged on the clamping ring.

[0011] As a preferred technical solution of the present utility model: An angle scale is arranged on the first support plate.

[0012] The present utility model has the following beneficial effects:

[0013] 1. It is not necessary to place it on the treatment bed for detection, and the quality of X-rays can be more accurately evaluated, and it is ensured that the irradiation angle and quality of X-rays used during the treatment process meet medical standards.

[0014] 2. It can simulate the irradiation of the human body by X-rays at different angles, and the expected treatment effect can be achieved in actual treatment.

[0015] 3. The setting of the angle scale can more accurately simulate the angle of X-rays. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is Figure 1 the left and right isometric axonometric drawing of

[0018] Figure 3 is Figure 1 the front view of

[0019] Figure 4 isFigure 1 Right view of;

[0020] Figure 5 is Figure 1 Bottom view of;

[0021] Figure 6 is Figure 1 Left view of;

[0022] Figure 7 is Figure 1 Top view of;

[0023] Figure 8 Schematic diagram of the overall structure when the present utility model is in use;

[0024] Figures 1-8 In, 1, support assembly; 2, fixing assembly; 3, snap ring; 4, treatment bed; 5, image quality test disk; 6, support frame; 7, first support plate; 8, second support plate; 9, connecting plate; 10, support block; 11, wing nut; 12, hex nut; 13, knurled screw; 14, angle disk; 15, fixing clip; 16, clip body; 17, screw rod; 18, pressing disk. Specific embodiments

[0025] In order to make the purpose and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] As Figures 1-8 shown, the embodiment of the present utility model provides a fixing and adjusting device for a quality phantom for detecting X-ray radiography, including a support assembly 1 and a fixing assembly 2. A snap ring 3 is rotatably connected to the support assembly 1; the snap ring 3 is used to place an image quality test disk 5, and the image quality test disk 5 is the TOR 18FG phantom; the fixing assembly 2 is used to fix the support assembly 1 on the treatment bed 4; the snap ring 3 drives the image quality test disk 5 to rotate, so as to simulate the irradiation of the human body by X-rays at different angles, so as to ensure that the expected treatment effect can be achieved in actual treatment. It is not necessary to place it on the treatment bed for detection, and the quality of X-rays can be more accurately evaluated, and it is ensured that the irradiation angle and quality of X-rays used in the treatment process meet medical standards.

[0027] The support assembly 1 includes a support frame 6, and the support frame 6 includes a first support plate 7 and a second support plate 8. The bottoms of the first support plate 7 and the second support plate 8 are connected by a connecting plate 9. The shape of the first support plate 7 is sector-shaped, and a support block 10 is arranged on the outer side of the upper part of the first support plate 7. The support block 10 is placed on the treatment bed 4 during use to achieve connection with the treatment bed 4. A clamping ring 3 is arranged between the first support plate 7 and the second support plate 8. The shape of the clamping ring 3 is the same as that of the image quality test disc 5. The first support plate 7 and the second support plate 8 are connected to the clamping ring 3 by nuts. In this embodiment, preferably, the connection between the first support plate 7 and the clamping ring 3 is a wing nut 11, and the connection between the second support plate 8 and the clamping ring 3 is a hexagon nut 12. Multiple groups of screws are evenly arranged on the clamping ring 3. The screws are preferably knurled screws 13. The multiple groups of knurled screws 13 are used to lock the image quality test disc 5 to prevent the image quality test disc 5 from falling during use. In order to improve the adjustment accuracy and more precisely simulate the angle of the X-ray, an angle disc 14 is arranged above the first support plate 7, and angle values are arranged on the angle disc 14. During use, first loosen the wing nut 11, refer to the angle disc 14, rotate the clamping ring 3 to the required angle, and then tighten the wing nut 11 so that the clamping ring 3 cannot rotate, and then it can be used.

[0028] The fixing assembly 2 includes two groups of fixing clips 15. The fixing clip 15 is a G-type clip or an F-type clip. In this embodiment, it is preferably a G-type clip, which includes a clip body 16. A screw rod 17 is rotatably connected to the upper end of the clip body 16. The lower part of the clip body 16 is clamped on the treatment bed 4, and the screw rod 17 is rotated to press the screw rod 17 on the support block 10, thereby fixing the support assembly 1. In order to improve the pressing effect of the screw rod 17, a pressing disc 18 is arranged below the screw rod 17.

[0029] The working principle of this specific implementation is as follows: 1. Close the second support plate 8 of the support assembly 1 against the treatment bed 4, and place the support block 10 on the treatment bed 4. Note that the bed body should not be scratched.

[0030] 2. Fix the support assembly 1 with one fixing clip 15. The fixing clip 15 should be tightened appropriately to avoid damaging the treatment bed 4. Note that the fixing clip 15 should be avoided from the ray area.

[0031] 3. Fix the support assembly 1 with another fixing clip 15.

[0032] 4. Loosen the knurled screws 13, place the image quality test disc 5, and tighten the knurled screws 13.

[0033] 5. Refer to the angle disc 14, rotate the clamping ring 3 to the required angle, and then tighten the wing nut 11 so that the clamping ring 3 cannot rotate, and then it can be used.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A fixing and adjusting device for detecting the quality of X-ray film phantom, characterized in that: It comprises a supporting component (1) and a fixing component (2); the supporting component (1) is rotatably connected to a clamping ring (3); the clamping ring (3) is used to place an image quality test disc (5); the fixing component (2) is used to fix the supporting component (1) on a treatment bed (4); The support assembly (1) comprises a support frame (6) and a support block (10); the support frame (6) comprises a first support plate (7) and a second support plate (8), the first support plate (7) and the second support plate (8) being connected via a connecting plate (9); the support block (10) is arranged on the outer side of the first support plate (7); the support block (10) is used to be connected to the treatment bed (4); The fixing assembly (2) comprises two groups of fixing clamps (15); the fixing clamp (15) comprises a clamp body (16), and the upper end of the clamp body (16) is rotatably connected to a screw rod (17).

2. The fixing and adjusting device for detecting the quality of X-ray film according to claim 1, characterized in that: The clamping ring (3) is connected to the first supporting plate (7) and the second supporting plate (8) via nuts.

3. The fixing and adjusting device for detecting the quality of X-ray film according to claim 2, characterized in that: The clamping ring (3) is provided with a plurality of screws.

4. The fixing and adjusting device for detecting the quality of X-ray film according to claim 2, characterized in that: An angle plate (14) is provided on the first supporting plate (7).

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