A support device for a CT phantom head

Abstract

This utility model relates to the field of CT phantom technology, and in particular to a support device for the head of a CT phantom, comprising a base; a support plate rotatably connected to the inner side of the base, the surface of the support plate having several insertion holes; and a rod inserted into the insertion holes, the top end of the rod being fixedly connected to a connecting plate, the top end of the connecting plate having a sliding groove, two sliders being slidably connected in the sliding groove, a return spring being fixedly connected between the two sliders, and a mounting plate being fixedly connected to the top end of the sliders. This utility model has the following advantages: the rod can be installed onto the surface of the support plate by fixing nuts and insertion holes; in use, the head of the CT phantom is placed on the surface of the mounting plate, and the head of the CT phantom is installed onto the support device by using the sliders, connecting plate, sliding groove, and return spring; since the number and position of the rods and the spacing between the two mounting plates can be adjusted, the device can adapt to CT phantom heads of different specifications, greatly enhancing the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of CT phantoms, and in particular to a support device for the head of a CT phantom. Background Technology

[0002] A CT phantom is a body model similar to a real person in height, weight, bone size and density, and equipped with radiation-embedded soft tissue substitutes. It is primarily used to validate CT images. The CT phantom head support device is a head fixation and positioning device specifically designed for CT phantoms (models used to simulate human anatomy and calibrate CT equipment). Its main function is to stably support the phantom's head, ensuring its fixed position and accurate posture during CT scans, reducing scanning errors caused by displacement or shaking, thereby guaranteeing the accuracy of CT equipment performance testing, image quality assessment, and dose calibration.

[0003] In the prior art, some support devices for CT phantom heads mainly include a support and a plate rotatably connected to the support via a rotating shaft. Several pillars are fixedly connected to the surface of the plate. In use, the CT phantom head can be installed on the support device by aligning the pillars with and inserting them into the through holes opened on the surface of the CT phantom head. However, since the number, position and diameter of the pillars are fixed, the device can only be adapted to CT phantom heads of specific specifications, resulting in a significant limitation on the applicability of the device. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a support device for the head of a CT phantom, so as to solve the problem that some support devices for the head of a CT phantom mentioned in the background art are limited in their applicability because the number, position and diameter of the support columns are fixed, which means that the device can only be adapted to CT phantom heads of specific specifications.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a support device for the head of a CT phantom, including a base;

[0006] A tray is rotatably connected to the inner side of the base, and the surface of the tray has several insertion holes.

[0007] A plug rod is inserted into a socket. A connecting plate is fixedly connected to the top of the plug rod. A sliding groove is opened at the top of the connecting plate. Two sliders are slidably connected in the sliding groove. A return spring is fixedly connected between the two sliders. A mounting plate is fixedly connected to the top of the sliders. A fixing nut is threaded onto the surface of the plug rod.

[0008] The adjustment component is located at the bottom of the tray.

[0009] Optionally, the adjustment component includes:

[0010] The adjusting rod is threaded into the base;

[0011] The limiting rod is slidably connected to the base and located on one side of the adjusting rod;

[0012] The transmission block is rotatably connected to one end of the adjusting rod, and the transmission block and the limiting rod are fixedly connected.

[0013] Optionally, the mounting plate has an arc-shaped cross-section, and the slider is T-shaped.

[0014] Optionally, a guide plate is fixedly connected to the top of the mounting plate, and the guide plate is Z-shaped.

[0015] Optionally, a washer is fitted on the surface of the insertion rod above the fixing nut, and the washer is annular.

[0016] Optionally, the sockets are arranged in an array on the surface of the tray, with the spacing between adjacent sockets being consistent.

[0017] Optionally, the limiting rod surface is provided with scale markings, and the transmission block is U-shaped.

[0018] Optionally, the base is L-shaped, and a number of reinforcing ribs are fixedly connected to the surface of the base.

[0019] The beneficial effects of this utility model are as follows: the insert rod can be installed on the surface of the support plate by fixing the nut and the insertion hole. When in use, the CT phantom head is placed on the surface of the mounting plate, and the CT phantom head can be installed on the support device by using the slider, connecting plate, slide groove and return spring. Since the number and position of the insert rod and the distance between the two mounting plates can be adjusted, the device can be adapted to CT phantom heads of different specifications, which greatly enhances the applicability of the device.

[0020] Rotating the adjusting rod causes it to move along the base. Due to the limitation of the limiting rod, the transmission block will move at the bottom of the tray. By changing the position of the transmission block, the angle of the tray can be changed, thereby adjusting the tilt angle of the CT phantom head. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a support device for the head of a CT phantom according to the present invention;

[0023] Figure 2 This is a schematic diagram of the insert rod structure of a support device for the head of a CT phantom according to the present invention;

[0024] Figure 3This is a schematic diagram of the mounting plate structure of a support device for the head of a CT phantom according to the present invention.

[0025] Figure 4 This is a schematic diagram of the adjustment component structure of a support device for the head of a CT phantom according to the present invention;

[0026] Figure label:

[0027] 1. Base; 101. Reinforcing ribs;

[0028] 1. Tray; 201. Socket;

[0029] 2. Insert rod; 301. Connecting plate; 302. Slide groove; 303. Slider; 304. Return spring; 305. Mounting plate; 306. Fixing nut; 307. Guide plate; 308. Washer;

[0030] 3. Adjustment components; 401. Adjustment rod; 402. Limit rod; 403. Transmission block; 404. Scale markings. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] Please see Figures 1 to 3 This utility model provides a technical solution: a support device for the head of a CT phantom, comprising: a base 1; a support plate 2, rotatably connected to the inner side of the base 1, the surface of the support plate 2 having a plurality of insertion holes 201; an insertion rod 3 passing through the insertion holes 201, the top end of the insertion rod 3 being fixedly connected to a connecting plate 301, the top end of the connecting plate 301 having a sliding groove 302, two sliders 303 being slidably connected in the sliding groove 302, a return spring 304 being fixedly connected between the two sliders 303, the top end of the sliders 303 being fixedly connected to a mounting plate 305, a fixing nut 306 being threadedly connected to the surface of the insertion rod 3; and an adjustment component 4 being provided at the bottom end of the support plate 2.

[0033] Select an appropriate number of insertion rods 3 according to the specific situation of the through holes opened on the surface of the CT phantom head. Then, insert the insertion rods 3 into the insertion holes 201 on the surface of the support plate 2 that correspond to the positions of the through holes. Next, put the fixing nut 306 on the surface of the insertion rod 3 and rotate it until the fixing nut 306 and the connecting plate 301 fixed at the top of the insertion rod 3 are tightly against both sides of the support plate 2. The insertion rod 3 can then be installed on the surface of the support plate 2. When in use, place the CT phantom head on the surface of the mounting plate 305. During this process, the two sliders 303 will slide along the sliding groove 302 opened at the top of the connecting plate 301 and squeeze the return spring 304, thereby driving the mounting plate 305 to press tightly against the inner wall of the through hole. The CT phantom head can then be installed on the support device. Since the number and position of the insertion rods 3 and the distance between the two mounting plates 305 can be adjusted, the device can be adapted to CT phantom heads of different specifications, greatly enhancing the applicability of the device.

[0034] Furthermore, the mounting plate 305 has an arc-shaped cross-section, the slider 303 is T-shaped, and a guide plate 307 is fixedly connected to the top of the mounting plate 305. The guide plate 307 is Z-shaped.

[0035] The arc-shaped cross-section of the mounting plate 305 allows it to fit more closely to the inner wall of the through hole, thereby further enhancing the firmness of the connection between the CT phantom head and the equipment; the T-shaped slider 303 ensures that it will not detach from the slide groove 302 during sliding; a guide plate 307 is fixedly connected to the top of the mounting plate 305, and the Z-shaped guide plate 307 allows the CT phantom head to slide along the surface of the guide plate 307 toward the mounting plate 305, thereby facilitating the smooth insertion of the mounting plate 305 into the through hole.

[0036] Furthermore, a washer 308 is fitted on the surface of the insertion rod 3 above the fixing nut 306, and the washer 308 is annular.

[0037] The gasket 308 is made of rubber or other materials with good elasticity. The gasket 308 can not only increase the friction between the fixing nut 306 and the support plate 2, further enhancing the fixing effect on the insertion rod 3, but also the gasket 308 can compensate for the loss of preload caused by vibration or impact through elastic deformation, preventing the fixing nut 306 from loosening unexpectedly due to equipment vibration during use.

[0038] Furthermore, the sockets 201 are arranged in an array on the surface of the tray 2, with the spacing between two adjacent sockets 201 being consistent.

[0039] The sockets 201 are arranged in an array on the surface of the tray 2 and the spacing between two adjacent sockets 201 is consistent to ensure that there is sufficient space between two adjacent sockets 201 to tighten the fixing nut 306.

[0040] Preferably, the base 1 is L-shaped, and a number of reinforcing ribs 101 are fixedly connected to the surface of the base 1.

[0041] The reinforcing rib 101 enhances the base 1's resistance to deformation, thereby improving the support effect on the head of the CT phantom.

[0042] Please see Figures 1 to 4 This utility model provides a technical solution: a support device for the head of a CT phantom, the adjustment component 4 includes: an adjustment rod 401 threadedly connected to the base 1; a limit rod 402 slidably connected to one side of the adjustment rod 401 in the base 1; a transmission block 403 rotatably connected to one end of the adjustment rod 401, and the transmission block 403 and the limit rod 402 are fixedly connected.

[0043] Rotating the adjusting rod 401 causes it to move along the base 1. Due to the restriction of the limiting rod 402, the transmission block 403 will move at the bottom of the support plate 2. By changing the position of the transmission block 403, the angle of the support plate 2 can be changed, thereby adjusting the tilt angle of the CT phantom head.

[0044] The limit rod 402 has scale markings 404 on its surface, and the transmission block 403 is U-shaped.

[0045] The rotation angle of the tray 2 can be accurately controlled by the scale marking 404; the transmission block 403 is U-shaped to ensure that the insertion rod 3 will not obstruct its movement.

[0046] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A support device for the head of a CT phantom, characterized in that, include: Base (1); The tray (2) is rotatably connected to the inner side of the base (1), and the surface of the tray (2) is provided with several insertion holes (201). The insertion rod (3) is inserted into the insertion hole (201). A connecting plate (301) is fixedly connected to the top of the insertion rod (3). A sliding groove (302) is opened at the top of the connecting plate (301). Two sliders (303) are slidably connected in the sliding groove (302). A return spring (304) is fixedly connected between the two sliders (303). A mounting plate (305) is fixedly connected to the top of the slider (303). A fixing nut (306) is threaded onto the surface of the insertion rod (3). Adjustment component (4) is located at the bottom of tray (2).

2. The support device for the head of a CT phantom according to claim 1, characterized in that, The adjustment component (4) includes: Adjusting rod (401) is threaded into base (1); The limiting rod (402) is slidably connected to the base (1) and located on one side of the adjusting rod (401); The transmission block (403) is rotatably connected to one end of the adjusting rod (401), and the transmission block (403) and the limiting rod (402) are fixedly connected.

3. The support device for the head of a CT phantom according to claim 1, characterized in that, The mounting plate (305) has an arc-shaped cross-section, and the slider (303) is T-shaped.

4. A support device for the head of a CT phantom according to claim 1, characterized in that, The top of the mounting plate (305) is fixedly connected to a guide plate (307), which is Z-shaped.

5. A support device for the head of a CT phantom according to claim 1, characterized in that, A washer (308) is fitted on the surface of the insert (3) above the fixing nut (306), and the washer (308) is annular.

6. A support device for the head of a CT phantom according to claim 1, characterized in that, The sockets (201) are arranged in an array on the surface of the tray (2), and the spacing between two adjacent sockets (201) is consistent.

7. A support device for the head of a CT phantom according to claim 2, characterized in that, The limiting rod (402) has a scale mark (404) on its surface, and the transmission block (403) is U-shaped.

8. A support device for the head of a CT phantom according to claim 1, characterized in that, The base (1) is L-shaped, and a number of reinforcing ribs (101) are fixedly connected to the surface of the base (1).

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