A CT examination wedge head support

Abstract

The utility model relates to CT examination auxiliary instrument technical field, specifically disclose a kind of based on 30 ° oblique wedge head bottom support, three-way limiting structure and the CT examination head support of fixed system, its structure includes: wedge foam bottom support, extension type foam side plate and head support, magic tape connection's fixing band, and compressible wedge sponge clamp pad, head support surface covers leather / canvas coating layer.This head support is guided through 30 ° oblique angle to accurately position cranium with mandibular retrusion, combine three-way limiting with sponge clamp pad dynamic filling technology, significantly reduce patient radiation dose, reduce scanning area redundant coverage;Meanwhile, flexible composite material and adaptive fixing mechanism make head micro-motion amplitude control accurate, on the premise of improving patient comfort, make body position adjustment time shorten, realize the dual optimization of CT imaging resolution promotion and artifact incidence reduction.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for CT medical equipment, and in particular to a wedge-shaped headrest for CT examination. Background Technology

[0002] A CT examination bed, also known as a scanning bed, is a device in a CT scanner that supports the patient. It typically has a vertical motion control system and a horizontal longitudinal motion control system, enabling it to automatically move in and out of the scanning gantry aperture according to programmed requirements and automatically position the object to be scanned. The design of CT examination beds usually takes patient comfort and safety into account, such as employing a design without sharp angles to reduce the risk of injury to medical personnel and patients.

[0003] In today's rapidly developing medical technology, CT scanning technology occupies a crucial position in modern clinical practice. With its high-density and high spatial resolution, it provides doctors with intuitive and reliable imaging data, greatly improving the accuracy of lesion localization and characterization. However, even with this technological advantage, existing CT equipment still faces some challenges in patient use during head CT scans.

[0004] Specifically, current headrest designs have several significant limitations. First, the headrest notch height is often flush, lacking a personalized adjustment mechanism. Furthermore, due to the lack of clearly defined positioning grooves and fixing devices, the headrest is prone to shifting when the patient moves, affecting scanning accuracy. Second, the space on both sides of the U-shaped head support is too wide, lacking precise fixing devices, making it difficult to ensure consistent left-right positioning of the patient's head and easily causing motion artifacts, further reducing image quality. To present the optimal scanning position of the skull and provide high-quality images, it is necessary to design a wedge-shaped headrest to address the above problems. Utility Model Content

[0005] In view of the problems existing in current CT headrests, this utility model provides a CT examination wedge headrest with simple structure, convenient operation and corresponding tilt angle.

[0006] The solution adopted by this utility model to solve its technical problem is: a wedge-shaped headrest for CT examination, including a head base, wherein the head base is a wedge-shaped structure, the upper surface of the wedge-shaped structure is inclined, the lower part of the wedge-shaped structure is arc-shaped, a notch is provided in the middle of the inclined upper surface, the patient's head rests in the notch, side positioning plates are provided on both sides of the higher end of the inclined upper surface, and a top support is provided between the sides of the side positioning plates facing the high end of the base, the position of the patient's head is restricted from three directions by the side positioning plates and the top support, fixing straps are provided on both sides of the arc-shaped lower surface of the base, and the headrest is installed on the U-shaped frame of the CT examination bed by fixing straps. At the same time, wedge-shaped sponge pads are also installed on both sides of the arc-shaped lower surface of the base by ropes, and the wedge-shaped sponge pads are inserted into the gap between the base and the U-shaped frame to make the headrest stably installed in the U-shaped frame.

[0007] Furthermore, each fixing strap consists of two flexible straps, which are fixed to the two ends of the bottom of the base respectively, and the two flexible straps are connected by Velcro.

[0008] Furthermore, the wedge-shaped head base is tilted at a 30-degree angle.

[0009] Furthermore, the head base is a wedge-shaped foam block, the side positioning plate and the top support are foam boards extending from the foam block, the bottom of the foam block is arc-shaped, the upper surface of the foam block with a bevel is an arc concave surface, a notch is provided on the arc concave surface, and a covering layer is sewn onto the surface of the foam block.

[0010] Furthermore, the covering layer is sewn leather or canvas, and fastening straps and ropes are sewn onto the covering layer.

[0011] Furthermore, the fixing strap is made of a wide braided strap with toughness.

[0012] The beneficial effects of this utility model are as follows: The wedge-shaped headrest is placed in the U-shaped positioning groove of the head. Through the 30° oblique angle design of the head base support and the limiting function of the head top support, the head can be cleverly guided to the most ideal scanning position, ensuring that the chin is naturally retracted, thereby reducing unnecessary scanning areas and reducing the patient's radiation exposure.

[0013] The movable wedge-shaped foam pads on both sides not only improve patient comfort, but also, through their adjustable fixation mechanism, effectively stabilize the position of the headrest by adaptively filling gaps through compression deformation of the wedge-shaped foam pads, preventing the headrest from moving during scanning. Attached Figure Description

[0014] Figure 1 This is a diagram showing the usage state of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ; Figure 4 This is a front view structural diagram of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 3 .

[0015] The following are labeled in the diagram: 1. Head base; 2. Notch; 3. Side positioning plate; 4. Top support; 5. Fixing strap; 6. Wedge-shaped sponge pad; 7. Rope; 501. Velcro. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below.

[0017] Example 1: As Figure 1 As shown, this utility model provides a wedge-shaped headrest for CT examinations, which is used to support the patient's head during CT examinations to fix the position of the patient's head and ensure that the patient's head can be stably maintained in the optimal imaging position during the CT examination, thereby providing doctors with intuitive and reliable imaging data and improving the accuracy of lesion localization and characterization.

[0018] Specifically, such as Figure 2-5 As shown, the CT examination shows a wedge-shaped head support, including a head base 1, which is a wedge-shaped foam block with a 30-degree inclination.

[0019] The high end of the foam block extends into a foam board, forming a side positioning plate 3 and a top support 4, which restrict the position of the patient's head from three directions.

[0020] like Figure 1 As shown, during use, the patient's head rests on the notch 2, and the tilt angle naturally guides the chin to retract. After the head is placed on the headrest, the positioning plates on both sides and the top support 4 fit snugly against the sides and top of the head, requiring no manual adjustment. The gapless positioning avoids pressure from hard materials, while also inhibiting head movement and improving image clarity.

[0021] Fixing straps 5 are provided on both sides of the arc-shaped lower surface of the base. The headrest is installed on the U-shaped frame of the CT examination bed through the fixing straps 5. The fixing straps 5 are directly sewn onto the covering layer.

[0022] The fixing strap 5 adopts a two-section structure, connected in the middle by Velcro 501. The fixing strap 5 is made of a resilient flat woven strap. After wrapping around the U-shaped frame, the woven strap is quickly secured using Velcro 501, allowing for quick and secure fixation of the headrest to the U-shaped frame of the CT examination table. The flat woven strap has high strength, allowing the headrest to be firmly installed on the U-shaped frame of the CT table by tightening. At the same time, the flat structure increases the contact surface, improving overall stability.

[0023] Meanwhile, wedge-shaped sponge pads 6 are installed on both sides of the arc-shaped lower surface of the base via ropes 7. The wedge-shaped sponge pads 6 are inserted into the gap between the base and the U-shaped frame. The gap is automatically filled by compression deformation, so that the head support is stably installed in the U-shaped frame. The sponge pads enhance stability, and the double fixation reduces head micro-movement during scanning, while also improving comfort.

[0024] This headrest combines anatomically adapted structures with dynamic fixation technology to achieve rapid positioning, stable anti-movement, optimized radiation dose, and improved patient comfort, ultimately enhancing CT scan efficiency and imaging quality.

[0025] The working principle and usage process of this utility model are as follows: When using this device, the device is fixed in the head U-shaped positioning groove (i.e., U-shaped frame) by the fixing strap 5 containing Velcro 501. When the patient is examined, he lies supine with his head placed on the 30° wedge-shaped headrest. Through the limiting effect of the positioning strips on both sides of the center of the headrest and the top support 4, the patient's chin is naturally retracted downwards. Then, the wedge-shaped sponge pads 6 on both sides are used to fill the gap formed between the patient's head and the U-shaped support, thereby further correcting the head position and increasing the stability of the head, avoiding movement during the examination, and thus presenting the best imaging position.

[0026] CT scanners have a default, standard head measurement range. During scanning, this range must be parallel to the head scanning positioning line – the canthal crease. Therefore, if the default scanning range deviates from this line during a CT scan, an angle adjustment is required. This angle adjustment results in a reconstructed area. If the head is overextended or overflexed during the scan, and not centered on the headrest, the reconstructed area will increase, leading to an increased radiation dose. This invention uses positioning plates on both sides and a top support to position the patient's head in three directions. When using the device, the headrest is placed between the two positioning plates, with the top of the head flush with the top support. This aligns the scanning range, resulting in optimal imaging. Angle adjustment is almost unnecessary, or only very small, reducing the reconstructed area and thus minimizing radiation exposure.

[0027] Example 2: The bottom of the foam block is arc-shaped, and the inclined upper surface of the foam block is an arc-shaped concave surface. A notch 2 is provided on the arc-shaped concave surface, and a covering layer is sewn onto the surface of the foam block. The covering layer is sewn leather or canvas.

[0028] Patients directly contact soft leather or canvas, avoiding skin friction and irritation, extending service life, simplifying the operation process, and shortening the time for position adjustment.

[0029] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A wedge-shaped headrest for CT examination, characterized in that, The device includes a head support (1), which is a wedge-shaped structure with an inclined upper surface and a circular arc shape at the bottom. A notch (2) is provided in the middle of the inclined upper surface, and the patient's head rests in the notch (2). Side positioning plates (3) are provided on both sides of the higher end of the inclined upper surface. A top support (4) is provided between the side positioning plates (3) and the sides facing the high end of the support. The position of the patient's head is restricted from three directions by the side positioning plates (3) and the top support (4). Fixing straps (5) are provided on both sides of the circular arc lower surface of the support. The head support is installed on the U-shaped frame of the CT examination bed by the fixing straps (5). At the same time, wedge-shaped sponge pads (6) are also installed on both sides of the circular arc lower surface of the support by ropes (7). The wedge-shaped sponge pads (6) are inserted into the gap between the support and the U-shaped frame to make the head support stably installed in the U-shaped frame.

2. The CT examination wedge-shaped headrest according to claim 1, characterized in that, Each fixing strap (5) consists of two flexible straps, which are fixed to the two ends of the bottom of the base respectively, and are connected by Velcro (501).

3. The CT examination wedge-shaped headrest according to claim 1, characterized in that, The wedge-shaped head base (1) is tilted at 30 degrees.

4. The CT examination wedge-shaped headrest according to claim 1, characterized in that, The head base (1) is a wedge-shaped foam block, the side positioning plate (3) and the top support (4) are foam boards extending from the foam block, the bottom of the foam block is arc-shaped, the upper surface of the foam block with a bevel is an arc concave surface, a notch (2) is provided on the arc concave surface, and a covering layer is sewn on the surface of the foam block.

5. The CT examination wedge-shaped headrest according to claim 4, characterized in that, The covering layer is sewn leather or canvas, and fastening straps (5) and ropes (7) are sewn onto the covering layer.

6. The CT examination wedge-shaped headrest according to claim 1, characterized in that, The fixing strap (5) is made of a tough, wide braided strap.

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