Head fixing device matched with CT examination of radiology department

Abstract

The invention discloses a head fixing device matched with CT examination in the radiology department, and relates to the technical field of medical imaging equipment. The invention provides a head fixing device matched with radiology department CT examination, which comprises a base and a restraint device, the restraint device is arranged on the base, the base comprises a first base and a plurality of second bases, the lower part of the first base is detachably connected with a plurality of second bases, the first base is provided with various grooves adaptive to the shape and size of the head, and the restraint device is arranged on the first base. The restraint device comprises a compression air bag used for filling gaps on the left side and the right side of the head, an air bag type forehead bandage and a lower jaw annular bandage used for fixing the lower jaw, and an annular hollow air bag is arranged in the lower jaw annular bandage. The fixing comfort of a patient during CT examination of the head part is improved, the head of the patient is effectively and stably fixed through the restraint device, the stability of the head is remarkably improved, and the success rate of examination is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of medical imaging equipment, and in particular to a skull fixation device used in conjunction with CT examinations in a radiology department. Background Art

[0002] A radiographic CT immobilization device is a device used to immobilize a patient's body part during a computed tomography (CT) scan. The primary function of this device is to ensure the patient remains still during the examination, thereby improving image quality, avoiding image blur, and increasing the success rate of the examination. This is especially true for certain head examinations that require the patient's cooperation (such as CT angiography scans, stroke, brain trauma, infants, and children). If the patient fails to cooperate, the images produced by the CT examination will be blurred due to the movement of the patient's head, making it impossible for the diagnostician to carefully observe the examination images, ultimately leading to the failure of the CT examination.

[0003] Currently, during CT head scans, the patient's examination position is generally as follows: lying face up on the CT examination bed, with the head placed in the center of the head support, and then fixed by corresponding fixing devices, such as: blocks of hard foam of different sizes are used to fix and fill the two sides of the patient's head; a soft sponge pad is placed under the head to improve the patient's comfort during the examination; and a strap is used to fix the patient's lower jaw.

[0004] The existing device provides poor comfort and stability for patient fixation during CT examination of the head, and cannot guarantee the smooth completion of the CT examination. Summary of the Invention

[0005] In response to the above-mentioned problems, the present invention aims to provide a head fixation device for use with radiology CT examinations, thereby improving the comfort and stability of patient fixation during CT examinations of the head, ensuring the smooth completion of CT examinations, and avoiding examination failures due to poor patient cooperation, or additional radiation caused by multiple scans.

[0006] The main idea of the technical solution adopted by the present invention is to design a height-adjustable base and set restraints on the base to restrain the two sides, mandible and forehead of the patient.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A skull fixation device for use with CT scans in radiology departments comprises a base and a mounting seat, wherein the base is mounted in the mounting seat and a restraint is provided on the base. The base is a detachable splicing structure with adjustable height; The restraint restrains both sides of the patient's head, the mandible and the forehead.

[0008] Through the above solution, further: the base includes a first base and a second base, and multiple second bases are detachably connected below the first base.

[0009] Through the above scheme, further: the first base is "L"-shaped, a top groove is provided on the vertical surface, and a posterior cranial groove and a neck groove are respectively provided on the horizontal surface, and the posterior cranial groove and the neck groove are connected.

[0010] Through the above scheme, further: the restraint includes a compression airbag, a mandibular ring strap and a forehead strap, the compression airbag is arranged on both sides of the first base, one end of the mandibular ring strap is connected to the first base, and the other end is detachably connected to the mounting seat, one end of the forehead strap is connected to the first base, and the other end is detachably connected to the mounting seat.

[0011] Through the above scheme, further: the compression airbag is a multi-layer foldable airbag, which is used to fill the gap on the left and right sides of the head. The multi-layer foldable airbag can be adjusted according to the patient's head. After installation, the gas in the compression airbag can move and fill automatically according to the patient's head shape, avoiding the patient's head from moving left and right in the first base.

[0012] According to the above solution, further: the mandibular annular bandage has a built-in annular hollow bag, which is used to position the patient's mandible so that the patient's head will not fall off from under the first base.

[0013] Through the above solution, further: the forehead strap adopts an airbag strap, which is suitable for patients with different head shapes and does not affect the blood circulation of the patient's head.

[0014] The beneficial effects of the present invention are: 1. The restraint includes a compression airbag for filling the gaps on the left and right sides of the head, an airbag-type forehead strap, and a mandibular ring strap for mandibular fixation. The three work together to firmly fix the patient's head, significantly improving head stability and increasing the success rate of the examination. 2. The first base is provided with a posterior skull groove, a top of the head groove, and a neck groove, which allow the head to sink into them respectively. This prevents the patient's head from rotating to a certain extent, provides a certain degree of stability, is friendly to the patient's cervical spine, and provides excellent comfort; 3. Multiple second bases can be detachably connected under the first base, allowing for personalized adjustment based on the patient's spinal curvature. 4. The compression airbag is a multi-layer foldable airbag that can be adjusted according to the patient's head. After installation, the gas in the compression airbag can move and fill automatically according to the patient's head shape, preventing the patient's head from moving left and right in the first base; 5. The mandibular ring strap has a built-in hollow bladder, which can be used to place the patient's mandible. The hollow bladder can be used to position the patient's mandible so that the patient's head will not fall off from under the first base. 6. The forehead strap adopts an airbag strap, which is suitable for patients with different head shapes and does not affect the blood circulation of the patient's head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments.

[0016] Figure 1 This is a diagram of a first usage state of a skull fixation device for use with radiology CT examinations according to the present invention; Figure 2 This is a diagram of a second usage state of a skull fixation device for use with radiology CT examinations according to the present invention; Figure 3 This is a schematic diagram of the first structure of a skull fixation device for use with radiology CT examinations according to the present invention; Figure 4 This is a second structural schematic diagram of a skull fixation device for use with radiology CT examinations according to the present invention; Figure 5 This is a schematic diagram of the base structure of the present invention; Figure 6 This is an exploded view of the base of the present invention; Figure 7 This is a schematic structural diagram of the first base of the present invention; Figure 8 This is a schematic diagram of the base and compression airbag structure of the present invention; Figure 9 This is a schematic diagram of the base and forehead strap structure of the present invention; Figure 10 This is a schematic diagram of the base and mandibular ring strap structure of the present invention; Figure 11 This is a diagram of the existing installation; In the figure: 1. First base; 101. Posterior skull groove; 102. Top of head groove; 103. Neck groove; 2. Second base; 3. Compression airbag; 4. Mandibular ring strap; 5. Forehead strap; 6. Mounting seat. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0019] The inventors found in practice that the head support material is generally made of hard plastic, which is hard and not easy to deform, and its size and width are far greater than the size and width of a normal human head (so that it can be used for patients with thick head bandages and large head circumferences who undergo CT scans). Therefore, during the CT scan, some patients may experience head shaking due to their illness or personal inability to cooperate independently, resulting in scan failure; the hard foam material is too hard, and if it is stuffed too tightly, the patient cannot tolerate the pain, and if it is too loose, it cannot play a fixing role; the block sponge pad material is prone to aging and deformation and cannot be used for a long time; the mandibular strap material is too simple, and it is difficult to fix the mandible with one strap. When used on critically ill patients, there is also a risk of suffocation due to the sudden displacement of the strap to the neck.

[0020] Based on the above findings, the present application proposes a head fixation device for use with radiology CT examinations to improve the comfort and stability of patient fixation during CT examinations of the head, ensure the smooth completion of the CT examination, and avoid examination failure due to poor patient cooperation or additional radiation caused by multiple scans.

[0021] Example See Figures 1 to 9 This application discloses a head fixation device for use with radiology CT scans, comprising a base, a restraint, and a mounting seat 6. The base is provided with a restraint that securely secures the patient's head within the base and mounting seat 6. The base is a detachable, height-adjustable splicing structure, and the restraint constrains the sides, mandible, and forehead of the patient's head.

[0022] Among them, the base includes a first base 1 and a second base 2, and multiple second bases 2 can be detachably connected under the first base 1. The base height can be adjusted by cooperating with Velcro and Velcro. The base height is adjusted according to the physiological curvature of the patient's spine and a suitable layer combination is selected.

[0023] In particular, the first base 1 is in an "L" shape, with a top head groove 102 on the vertical surface, which adapts to the shape of the top of the human skull, and a posterior cranial groove 101 and a neck groove 103 on the horizontal surface. The posterior cranial groove 101 and the neck groove 103 are connected. The posterior cranial groove 101 adapts to the shape of the back of the human skull, and the neck groove 103 adapts to the shape of the human neck, so that the patient's head can sink into the first base 1 after lying down, which is friendly to the patient's cervical spine and has excellent comfort. At the same time, it prevents the patient's head from rotating and has a certain stability.

[0024] To improve ergonomics, the bottoms of the first and second bases 1 and 2 are curved for greater comfort. To ensure the patient's head is stable and properly positioned within the first base 1, the first base 1 is 40mm thick. The outer diameter of the top head slot 102 is 120mm, the inner diameter is 30mm, and the depth is 40mm. The second base 2 is 50mm thick.

[0025] The base is constructed with memory foam inside and polyurethane anti-slip material covering the outside. Memory foam, a slow-rebound polyurethane foam, provides uniform surface pressure distribution and adapts to the surface shape of external pressure through stress relaxation, minimizing pressure at the highest points. This effectively prevents areas of microcirculatory compression and provides a cushioning material that gently maintains the shape of foreign objects. The polyurethane anti-slip material is washable, easy to disinfect, age-resistant, moisture-resistant, breathable, and dry, making it suitable for patient contact, cleaning, and replacement, and has a long service life under CT.

[0026] In particular, the restraint includes a compression airbag 3, a mandibular annular strap 4 and a forehead strap 5. The compression airbag 3 is arranged on both sides of the first base 1 and is detachably connected to the first base 1, which is convenient for timely replacement after contamination. One end of the mandibular annular strap 4 is connected to the first base 1, and the other end is detachably connected to the mounting seat 6. One end of the forehead strap 5 is connected to the first base 1, and the other end is detachably connected to the mounting seat 6.

[0027] Specifically, the compression airbag 3 adopts a multi-layer foldable airbag with a length of 20 mm and a width of 100 mm. It is light, soft, skin-friendly, easy to fold and shape, and is used to fill the gaps on the left and right sides of the head. The multi-layer foldable airbag can be adjusted according to the patient's head. After installation, the gas in the compression airbag 3 can move and fill automatically according to the patient's head shape, preventing the patient's head from moving left and right in the first base 1.

[0028] Furthermore, the mandibular annular strap 4 is made of a strap with a thickness of 10 mm, a single-side length of 400 mm, and a width of 40 mm. A circular hollow bag with a long diameter of 80 mm, a short diameter of 60 mm, and a thickness of 10 mm is detachably connected in the middle of the strap. The patient's mandible can be placed in the circular hollow bag, and the patient's mandible is positioned by the circular hollow bag so that the patient's head will not fall away from under the first base 1. One end is connected to the first base 1 in the form of Velcro, and the other end is connected to the mounting seat 6 in the form of Velcro after passing around the mandible.

[0029] It is worth noting that the forehead strap 5 is an airbag strap with a length of 600 mm, a width of 50 mm and a thickness of 10 mm. The airbag strap is suitable for patients with different head shapes and does not affect the blood circulation of the patient's head.

[0030] A usage process of this embodiment is: The patient places their head on the first base 1, sinking into the posterior skull groove 101, the top of the head groove 102, and the neck groove 103. The compression airbag 3 fills the gaps between the patient's head and the mounting base 6 on both sides to prevent the patient's head from swinging left and right. The forehead strap 5 is then passed over the patient's forehead and connected to the mounting base 6 via Velcro. Finally, the patient's mandible is positioned using the annular hollow airbag of the mandibular ring strap 4. The mandibular ring strap 4 is then passed around the patient's mandible and connected to the mounting base 6 via Velcro. The above operation effectively secures the patient's head, minimizes motion artifacts caused by poor patient coordination, improves image quality, and meets diagnostic requirements.

[0031] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A skull fixation device for use with radiology CT examinations, comprising a base and a mounting seat (6), wherein the base is mounted in the mounting seat (6), and is characterized in that: A restraint is provided on the base, wherein: The base is a detachable splicing structure with adjustable height; The restraint restrains both sides of the patient's head, the mandible and the forehead.

2. A skull fixation device for use with radiology CT examinations according to claim 1, characterized in that: The base comprises a first base (1) and a second base (2), and a plurality of second bases (2) are detachably connected below the first base (1).

3. The head fixation device for use with radiology CT examinations according to claim 2, characterized in that: The first base (1) is in an "L" shape, with a top groove (102) provided on the vertical surface, and a posterior cranial groove (101) and a cervical groove (103) provided on the horizontal surface, wherein the posterior cranial groove (101) and the cervical groove (103) are connected.

4. The head fixation device for use with radiology CT examinations according to claim 1, characterized in that: The restraint device comprises a compression airbag (3), a mandibular annular strap (4) and a forehead strap (5), wherein the compression airbag (3) is arranged on both sides of the first base (1), one end of the mandibular annular strap (4) is connected to the first base (1), and the other end is detachably connected to the mounting seat (6), and one end of the forehead strap (5) is connected to the first base (1), and the other end is detachably connected to the mounting seat (6).

5. The head fixation device for use with radiology CT examination according to claim 4, characterized in that: The compression airbag (3) is a multi-layer foldable airbag used to fill the gaps on the left and right sides of the skull.

6. The head fixation device for use with radiology CT examination according to claim 4, characterized in that: The mandibular annular bandage (4) has a built-in annular hollow sac.

7. The head fixation device for use with radiology CT examination according to claim 4, characterized in that: The forehead strap (5) is an airbag-type strap.

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