Fixing device for CT examination of children's head

Abstract

The utility model discloses a kind of fixer for children head CT examination, including with the clamping frame (1) of bed body edge fixed, the upper end of the clamping frame (1) is equipped with plate body support frame (10), the middle part of plate body support frame (10) is equipped with top rod (2), the upper end of top rod (2) is equipped with arc frame (3);The arc frame (3) includes main arc plate (4) and the side support plate (5) of the both sides of main arc plate (4), and main arc plate (4) has head soft pad (6) on it.The utility model fills the gap between children head and frame body using inflatable pad structure, adapt to the children head of different head circumference, keep children head stable, so as to better carry out CT irradiation examination.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a fixation device for pediatric cranial CT examinations. Background Technology

[0002] When patients undergo brain examinations, their heads remain in a fixed position for extended periods. Generally, these examinations require patients to remain still for long periods. To address this, a scanning head support has been developed. For example, Chinese Utility Model Patent CN213525191U discloses a head support comprising: a brain support frame; a clamping member having a central portion and left and right portions rotatably connected to both sides of the central portion, the central portion mounted on the brain support frame, and limiting clips with multiple limiting grooves on the outer sides of the left and right portions, the clamping member being made of an elastic material; and a pair of adjusting plates located on both sides of the clamping member, one end of which is rotatably connected to the brain support frame, and the other end used to engage with the limiting grooves at different positions to adapt the distance between the left and right portions of the clamping member to the head width of different patients. Although this type of head support has mechanisms on both sides to adjust the width of the central slot, it is only suitable for fixing the head of an adult. If a child's head is placed in it, because the child's head is smaller, there will be a large gap between the sides of the child's head and the head support, causing the child's head to be misaligned. During CT irradiation, the head will move and easily affect the image quality. Utility Model Content

[0003] The purpose of this invention is to provide a fixation device for pediatric cranial CT examinations. This invention uses an inflatable cushion structure to fill the gap between the child's head and the frame, adapting to children with different head circumferences and maintaining the stability of the child's head for better CT imaging.

[0004] The technical solution of this utility model is as follows: A fixation device for pediatric cranial CT examination includes a clamping frame fixed to the edge of the bed. The upper end of the clamping frame is provided with a plate support frame, the middle of the plate support frame is provided with a top rod, and the upper end of the top rod is provided with an arc-shaped frame. The arc-shaped frame includes a main arc plate and side support plates on both sides of the main arc plate. The main arc plate has a head pad, and the inner side of the side support plate has an inflatable cushion. The air inlet end of the inflatable cushion is connected to an inflatable air bag, and the air outlet end of the inflatable cushion has a deflation valve. The plate support frame has ribs on both sides that are connected to the outer side of the side support plates.

[0005] In the aforementioned fixation device for pediatric cranial CT examination, the upper end of the side support plate has a first rib, the end of the first rib has a second rib, the first rib and the second rib form a hook, and the hook fits into the upper end of the rib plate.

[0006] In the aforementioned fixation device for pediatric cranial CT examination, the top rod passes through the plate support frame, and a fixing nut is threaded onto the top rod, with the bottom of the fixing nut abutting against the surface of the plate support frame.

[0007] In the aforementioned fixation device for pediatric cranial CT examination, the clamping frame includes a clamping body, a track inside the clamping body, a fixed bracket and a movable bracket at the upper and lower ends of the track, a screw between the fixed bracket and the movable bracket, the upper end of the screw being connected to the fixed bracket via a bearing, and the lower end of the screw being connected to the movable bracket via a threaded structure; a rotating rod is connected to the lower end of the screw.

[0008] In the aforementioned fixation device for pediatric cranial CT examination, the rotating rod is equipped with a transverse force-adding rod.

[0009] In the aforementioned fixation device for pediatric cranial CT examination, the surface of the inflatable pad has multiple anti-slip protrusions.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. In this invention, the clamping frame is connected to the edge of the scanning bed. The child's head is placed on the main arc plate of the arc-shaped frame, with a certain gap between the child's head and the side support plates on both sides. Squeezing the inflatable airbags causes the air pads to expand, allowing them to fit snugly against the child's head. By filling the gap between the child's head and the frame with inflatable pads, this design can accommodate children with different head circumferences, keeping the child's head stable for better CT scans. Furthermore, the inflatable pads are soft and comfortable; compared to traditional rigid fixation methods, they avoid causing pressure damage to the skin and soft tissues.

[0012] 2. A hook structure is installed on the outer end of the side support plate of the arc frame. The hook fits into the upper end of the rib plate, which can make the arc frame more stable and prevent the side support plate from sliding relative to the rib plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of a hook;

[0015] Figure 3 This is a schematic diagram of the push rod;

[0016] Figure 4 This is a schematic diagram of the clamping frame.

[0017] The markings in the attached diagram are as follows: 1-Clamping frame, 2-Top rod, 3-Arc frame, 4-Main arc plate, 5-Side support plate, 6-Head pad, 7-Inflatable pad, 8-Inflatable airbag, 9-Deflator nozzle, 10-Plate support frame, 11-Rib plate, 12-First rib, 13-Second rib, 14-Hook, 15-Fixing nut, 16-Clamping body, 17-Railway, 18-Fixing seat, 19-Moving seat, 20-Screw, 21-Rotating rod, 22-Horizontal force-adding rod, 23-Anti-slip protrusion. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A fixation device for pediatric cranial CT examination, comprising a clamp 1 fixed to the edge of the bed, as shown in the attached diagram. Figure 1 As shown, a top rod 2 is installed at the upper end of the clamping frame 1, as per the attached diagram. Figure 3 As shown, the upper end of the top rod 2 is provided with an arc-shaped frame 3. The arc-shaped frame 3 includes a main arc plate 4 and side support plates 5 on both sides of the main arc plate 4. The main arc plate 4 has a head cushion 6, and the inner side of the side support plate 5 has an inflatable cushion 7. The surface of the inflatable cushion 7 has multiple anti-slip protrusions 23. The anti-slip protrusions can prevent the inflatable cushion from slipping on the child's head. At the same time, the anti-slip protrusions can leave a gap for air circulation between the surface of the inflatable cushion and the child's head, reducing stuffiness and improving comfort. The air inlet of the air cushion 7 is connected to an air bladder 8, and the outlet of the air cushion 7 has a deflation valve 9. The two air cushions on both sides are interconnected. Inflation is controlled by an air bladder, and deflation is controlled by the deflation valve. Squeezing the air bladder injects air into the air cushion, causing it to expand. The deflation valve releases the air from the air cushion, reducing its volume. The upper end of the clamping frame 1 is also equipped with a plate support frame 10. The plate support frame 10 has ribs 11 on both sides that abut against the outer side of the side support plate 5. The top rod 2 is fixed to the upper end of the clamping frame 1 and passes through the plate support frame 10. A fixing nut 15 is threaded onto the top rod 2. The bottom of the fixing nut 15 abuts against the surface of the plate support frame 10. By rotating the fixing nut, the bottom of the fixing nut abuts against the plate support frame, thus firmly fixing the plate support frame.

[0020] The side support plate 5 has a first rib 12 at its upper end, and a second rib 13 at the end of the first rib 12. The first rib 12 and the second rib 13 form a hook 14, as shown in the attached figure. Figure 2 As shown, hook 14 fits into the upper end of side support plate 5. The hook is connected to the side support plate by welding. The hook fits into the upper end of the rib plate, which can make the arc frame more stable and prevent the side support plate from sliding relative to the rib plate.

[0021] The clamping frame 1 includes a clamping body 16, as shown in the attached figure. Figure 4 As shown, the clamping body 16 has a track 17. A fixed clamping seat 18 and a movable clamping seat 19 are respectively installed at the upper and lower ends of the track 17. The track has a T-shaped structure, allowing the movable clamping seat to slide stably within this structure. A screw 20 is installed between the fixed clamping seat 18 and the movable clamping seat 19. The upper end of the screw 20 is connected to the fixed clamping seat 18 via a bearing, and the lower end of the screw 20 is connected to the movable clamping seat 19 via a threaded structure. The clamping ends of the fixed and movable clamping seats are disc structures, which contact the edge of the scanning bed. A rotating rod 21 is connected to the lower end of the screw 20. The rotating rod rotates the screw, causing it to rotate. The movable clamping seat, which cooperates with the screw, moves towards the fixed clamping seat, reducing the distance between them. The clamping frame is fixed at the edge of the scanning bed. A transverse force-adding rod 22 is installed inside the rotating rod 21, achieving a labor-saving effect by lengthening the lever arm.

[0022] Using an inflatable mattress to stabilize a child's head has the following advantages:

[0023] 1. Reduce interference during examinations or surgeries: Children, especially infants, have relatively large and easily shaken heads because their bodies are not fully developed. Airbag fixation can effectively restrict head movement, ensuring that the head remains stable during examinations or surgeries, and reducing image blurring or operational errors caused by head movement.

[0024] 2. Improved success rate of examination: During CT scans, head stability can significantly improve image quality, avoid repeated examinations, and reduce the time children are exposed to radiation;

[0025] 3. High safety: The inflatable cushion can be adjusted to fit the shape of a child's head, making it suitable for children with different head circumferences. This avoids pressure damage to the skin and soft tissues. Compared with traditional fixation methods, airbag fixation does not cause friction or pressure on the skin, reducing the risk of skin damage and infection.

[0026] 4. Compared with metal fixation devices, airbag fixation will not interfere with imaging examinations, and its advantages are even more obvious, especially when multiple re-examinations are required.

[0027] The working principle of this utility model is as follows: First, the entire fixed equipment is installed on the edge of the scanning bed by the clamping frame 1. Rotating the rotating rod 21 connected to the lower end of the screw 20 can drive the screw 20 to rotate, causing the movable bracket 19 to move towards the fixed bracket 18, reducing the distance between the two, and thus firmly fixing the clamping frame 1 to the edge of the scanning bed. A transverse force-adding rod 22 is set inside the rotating rod 21, which can achieve labor-saving operation by lengthening the lever arm. The hook 14 fits with the upper end of the rib plate 11 on both sides of the plate support frame 10. This structural design can effectively prevent the side support plate 5 from sliding relative to the rib plate 11, enhance the stability of the arc frame 3, and further ensure the stability of the child's head during the examination. Then, the child's head is placed on the arc frame. On the main arc plate 4 of the frame 3, the head cushion 6 on the main arc plate 4 can improve comfort. At this time, there is a certain gap between the child's head and the side support plates 5 on both sides of the arc frame 3. When the airbag 8 connected to the air inlet end of the air cushion 7 is squeezed, air enters the air cushion 7 and inflates it. The air cushions 7 on both sides are connected to each other and the inflation can be controlled by one airbag 8. The inflated air cushion 7 can fit tightly against the child's head. The anti-slip protrusions 23 on the surface of the air cushion 7 not only play an anti-slip role, but also leave an air circulation gap between the air cushion 7 and the child's head, reducing stuffiness and improving comfort. By filling the gap between the child's head and the frame with the air cushion 7, it can adapt to children's heads of different head circumferences and keep the head stable.

[0028] The above embodiments merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. Furthermore, in these embodiments, "up," "down," "left," "right," "front," and "back" represent relative positions only, not absolute positions. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fixation device for pediatric cranial CT examination, characterized in that: The device includes a clamping frame (1) fixed to the edge of the bed frame. The upper end of the clamping frame (1) is provided with a plate support frame (10). The middle part of the plate support frame (10) is provided with a top rod (2). The upper end of the top rod (2) is provided with an arc frame (3). The arc frame (3) includes a main arc plate (4) and side support plates (5) on both sides of the main arc plate (4). The main arc plate (4) has a head cushion (6). The inner side of the side support plate (5) has an inflatable cushion (7). The air inlet end of the inflatable cushion (7) is connected to an inflatable air bag (8). The air outlet end of the inflatable cushion (7) has a vent valve (9). The two sides of the plate support frame (10) are provided with ribs (11) connected to the outer side of the side support plate (5).

2. The fixation device for pediatric cranial CT examination according to claim 1, characterized in that: The side support plate (5) has a first rib (12) at its upper end, and a second rib (13) at the end of the first rib (12). The first rib (12) and the second rib (13) form a hook (14), which fits into the upper end of the rib plate (11).

3. The fixation device for pediatric cranial CT examination according to claim 1, characterized in that: The top rod (2) is installed through the plate support frame (10), and the top rod (2) is threadedly connected to a fixing nut (15). The bottom of the fixing nut (15) abuts against the surface of the plate support frame (10).

4. The fixation device for pediatric cranial CT examination according to claim 1, characterized in that: The clamping frame (1) includes a clamping body (16), and a track (17) is provided inside the clamping body (16). The upper and lower ends of the track (17) are respectively provided with a fixed card seat (18) and a movable card seat (19). A screw (20) is provided between the fixed card seat (18) and the movable card seat (19). The upper end of the screw (20) is connected to the fixed card seat (18) via a bearing, and the lower end of the screw (20) is connected to the movable card seat (19) via a threaded structure. A rotating rod (21) is connected to the lower end of the screw (20).

5. The fixation device for pediatric cranial CT examination according to claim 4, characterized in that: The rotating rod (21) is provided with a transverse force-adding rod (22).

6. The fixation device for pediatric cranial CT examination according to claim 1, characterized in that: The surface of the inflatable pad (7) has multiple anti-slip bumps (23).

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