An adjustable body position fixation device for a humpback patient
By designing an adjustable body position fixation device with a structural adjustment mechanism to bridge the gap between the device and the patient's back, the problem of a fixed slot size for fixation devices for hunchback patients was solved, reducing the amount of expanding foam used and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 蚌埠市第三人民医院(蚌埠市中心医院)
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-16
AI Technical Summary
The size of the slot in the existing fixation device for kyphosis patients is fixed and cannot be adjusted according to the degree of kyphosis, resulting in a large amount of remaining space in the slot and wasting foam material.
An adjustable body positioning device was designed, which includes a base, a pillow board, a movable board, a sliding board, and a connecting board. The sliding board and connecting board are driven by an adjustment mechanism to adjust the distance between them and the patient's back, thereby reducing the space required for foam filling.
It allows for adjustment of the structural position according to the degree of back bulge in patients, reduces the amount of foam used, reduces material consumption, and is simple and convenient to operate.
Smart Images

Figure CN224357910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable body position fixation device for hunchback patients. Background Technology
[0002] In radiotherapy, to ensure treatment precision, protect normal tissues, and improve efficacy, fixation devices are needed to immobilize the patient's body. Thermoplastic film combined with expanding foam is a commonly used fixation method. Thermoplastic film softens and becomes transparent when heated in 70°C hot water or an electric oven, allowing for moderate stretching and shaping. After cooling, it retains its shape at room temperature. Thermoplastic film exhibits low shrinkage upon cooling and high strength after shaping. Expanding foam is a material used for body immobilization, formed by the reaction of chemical substances to create a solidified foam pad. Its active foaming and expansion fills the gap between the foam pad and the body.
[0003] In existing technologies, for patients with kyphosis, a relief groove is usually set on the surface of the fixation device to provide room for the patient's back. However, the size of the groove in existing devices is fixed and cannot be adjusted according to the degree of kyphosis. This can easily result in a large amount of remaining space in the groove, requiring more expanding foam and wasting materials.
[0004] Therefore, we propose an adjustable posture fixation device for kyphotic patients. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies where the slot size of the device is fixed and cannot be adjusted according to the degree of kyphosis of the patient, which easily results in a large remaining space in the slot, requiring the use of more expanding foam and wasting materials. Therefore, this invention proposes an adjustable position fixation device for kyphotic patients.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An adjustable posture fixation device for kyphotic patients includes:
[0008] A base, wherein a clearance groove is provided through the surface of the base;
[0009] The pillow pad is slidably connected to the rectangular groove of the base, and the bottom of the pillow pad is provided with a lifting mechanism;
[0010] Movable plates, two of which are rotatably connected to the mounting slots on both sides of the clearance groove via a rotating shaft;
[0011] A skateboard is slidably connected to one end of the movable board;
[0012] A connecting plate is rotatably connected between the two opposing sliding plates;
[0013] An adjustment mechanism, located at the bottom of the movable plate, is used to adjust the distance between the movable plate and the sliding plate;
[0014] Enclosure panel, provided on the surface of the base;
[0015] Foamed plastic bags are placed inside the enclosure panel;
[0016] A thermoplastic film is disposed on the surface of the foamed plastic bag;
[0017] The adjustment mechanism drives the slide plate to move, thereby adjusting the distance between the connecting plate and the patient's back and reducing the space required for foam filling.
[0018] In one possible design, the lifting mechanism includes a fixed block and a first screw;
[0019] The fixing block is fixed between the inner walls of both sides of the rectangular groove;
[0020] The first screw rotates through the fixing block and is threadedly connected to the pillow pad plate;
[0021] The first screw is rotated to drive the pillow pad to rise and fall.
[0022] In one possible design, the adjusting mechanism includes a connecting sleeve and a second screw;
[0023] The connecting sleeve is fixed to the bottom of the movable plate;
[0024] The second screw is rotatably connected to the bottom of the slide plate and threadedly connected to the connecting sleeve;
[0025] The second screw is rotated to drive the slide plate to slide along the movable plate.
[0026] In one possible design, adjusting blocks are fixed to both the outer wall of the second screw and the bottom end of the first screw;
[0027] Quick operation is achieved by rotating the adjustment block.
[0028] In one possible design, the surface edge of the base is provided with multiple threaded holes;
[0029] The outer wall of the enclosure is provided with a plurality of first bolts, the first bolts being adapted to the threaded holes;
[0030] The first bolt secures the enclosure to the base.
[0031] In one possible design, the edge of the thermoplastic film is fixed with an edge plate;
[0032] The surface of the edge plate is provided with a plurality of second bolts, which are adapted to the threaded holes;
[0033] The second bolt secures the thermoplastic film to the base.
[0034] One possible design also includes an arc plate;
[0035] Two positioning blocks are fixed on one side of the arc plate;
[0036] Two positioning grooves are provided on one side of the base, and the positioning block cooperates with the positioning grooves;
[0037] The positioning block is fitted into the positioning groove to install the arc plate.
[0038] In this application, during use, the patient sits on the bed, the base is placed vertically and fitted to the patient, so that the patient's back enters the clearance groove. Then, the first screw is rotated to move the pillow pad, so that the pillow pad first touches the patient's head, and then the adjustment is reversed so that the pillow pad moves away from the head, leaving a certain gap. The second screw is rotated to move the movable plate and the sliding plate relative to each other, thereby adjusting the gap between the connecting plate and the patient's back. The same operation is repeated. After appropriate adjustment, the base is placed flat, the arc plate is connected to the base, and the surrounding plate is fixed to the surface of the base using the first bolt. Then, a foam bag is laid on the surrounding plate, and foam is poured into the foam bag through the opening. Then, the patient lies down, so that the foam bag is pressed against the area near the head and shoulders. After the foam is formed, the surrounding plate is removed, the thermoplastic film is heated and softened in hot water, and then the thermoplastic film is placed on the patient's face and pressed down. The thermoplastic film conforms to the deformation of the human body. The second bolt is used to fix the thermoplastic film. After the thermoplastic film cools, it will maintain its shape. Finally, a patient information label is attached.
[0039] Beneficial effects: In this utility model, the adjustable body position fixing device for hunchback patients can adjust the position of the structure according to the degree of back bulge of the patient by setting up structures such as movable plate, sliding plate and connecting plate, reducing the distance between the structure and the patient's back, reducing the space for foam filling and reducing material consumption.
[0040] In this utility model, the adjustable body position fixing device for hunchback patients, through the setting of the first screw and the second screw and other structures, allows people to quickly and easily adjust the structure, which is simple and convenient to operate and takes little time.
[0041] In this invention, the position of the structure can be adjusted according to the degree of back bulge of the patient, reducing the distance between the structure and the patient's back, reducing the space for foam filling, reducing material consumption, and allowing people to quickly adjust the structure. The operation is simple and convenient, and takes little time. Attached Figure Description
[0042] Figure 1 This is a schematic diagram of the overall three-dimensional exploded structure of an adjustable body position fixation device for hunchback patients proposed in this utility model.
[0043] Figure 2 This is a partial three-dimensional exploded structural diagram of an adjustable body position fixation device for hunchback patients proposed in this utility model.
[0044] Figure 3 This is a partial three-dimensional structural diagram of an adjustable body position fixation device for hunchback patients proposed in this utility model.
[0045] In the diagram: 1. Base; 2. Threaded hole; 3. Enclosure plate; 4. First bolt; 5. Edge plate; 6. Thermoplastic film; 7. Second bolt; 8. Arc plate; 9. Positioning block; 10. Positioning groove; 11. Rectangular groove; 12. Pillow pad; 13. Fixing block; 14. First screw; 15. Clearance groove; 16. Mounting groove; 17. Rotating shaft; 18. Movable plate; 19. Slide plate; 20. Connecting plate; 21. Connecting sleeve; 22. Second screw; 23. Adjusting block; 24. Foam bag. Detailed Implementation
[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0047] In one embodiment: Refer to Figures 1-3 A fixing device includes: a base 1 made of medical-grade ABS plastic. A rectangular groove 11 and a clearance groove 15 are formed through its surface, the two grooves being independent of each other. A pillow pad 12 is slidably connected within the rectangular groove 11. The surface of the pillow pad 12 is arc-shaped, with a radius of curvature adapted to the curvature of the human cervical spine. A lifting mechanism is provided at the bottom of the pillow pad 12.
[0048] Lifting mechanism: The fixing block 13 is welded between the inner walls of both sides of the rectangular groove 11. The first screw 14 passes through the threaded hole of the fixing block 13 and rotates with it. The top end of the first screw 14 engages with the threaded blind hole at the bottom of the cushion plate 12, and the bottom end is fixed to the adjusting block 23. When the adjusting block 23 is rotated, the first screw 14 drives the cushion plate 12 to rise and fall vertically along the rectangular groove 11.
[0049] The inner walls of the clearance groove 15 are symmetrically provided with mounting grooves 16. The rotating shaft 17 is rotatably connected to the mounting groove 16 via bearings, and its outer wall is interference-fitted with two movable plates 18. The movable plates 18 have sliding grooves at the bottom; the sliding plates 19 slide with the sliding grooves to achieve a sliding connection. A connecting plate 20, which is made of stainless steel, is rotatably connected between the two opposing sliding plates 19.
[0050] Adjustment mechanism: A connecting sleeve 21 is welded to the bottom of the movable plate 18, and a second screw 22 is rotatably connected to the bottom of the sliding plate 19 via a bearing. The second screw 22 engages with the internal thread of the connecting sleeve 21, and an adjusting block 23 is fixedly connected to its outer end. When the adjusting block 23 is rotated, the second screw 22 pushes the sliding plate 19 to extend and retract along the movable plate 18, causing the connecting plate 20 to move synchronously.
[0051] The base 1 has 6 M6 threaded holes 2 evenly distributed on the edge of its surface, and two rectangular positioning grooves 10 are machined on one side.
[0052] This application can be used in the field of medical devices, or in other fields applicable to this application.
[0053] In another embodiment: an adjustable body position fixation device for hunchback patients, which is applied to the field of medical devices;
[0054] In another aspect of this embodiment, the enclosure 3 is a U-shaped PVC board with a foamed plastic bag 24 on the inner side. The foamed plastic bag 24 is made of polyurethane material model P-200, with a thickness of 5mm, and has a pre-reserved injection port at the top. A through hole is opened on the outer side of the enclosure 3 corresponding to the threaded hole 2, and it is fixed to the base 1 by the first bolt 4.
[0055] The thermoplastic film 6 is a 0.5mm thick polyester film with a softening temperature of 70℃. Its edges are heat-sealed with edge plate 5, which has through holes and is fixed to the base 1 with the same set of threaded holes 2 by a second bolt 7.
[0056] The arc plate 8 is a PP plastic arc plate. Two rectangular positioning blocks 9 are fixedly connected to one side of it. The size of the positioning block 9 and the positioning groove 10 are ≤0.1mm apart, so as to achieve quick fitting and installation.
[0057] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0058] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An adjustable posture fixation device for kyphotic patients, characterized in that, include: The base (1) has a recessed groove (15) through its surface; The pillow pad (12) is slidably connected in the rectangular groove (11) of the base (1), and the bottom of the pillow pad (12) is provided with a lifting mechanism; Movable plate (18), two of the movable plates (18) are rotatably connected to the mounting grooves (16) on both sides of the relief groove (15) via a rotating shaft (17); A sliding plate (19) is slidably connected to one end of the movable plate (18); A connecting plate (20) is rotatably connected between two opposing sliding plates (19); An adjustment mechanism is provided at the bottom of the movable plate (18) for adjusting the distance between the movable plate (18) and the sliding plate (19); Enclosure (3) is provided on the surface of the base (1); Foamed plastic bag (24) is placed inside the enclosure (3); A thermoplastic film (6) is disposed on the surface of the foamed plastic bag (24); The adjustment mechanism drives the slide plate (19) to move, thereby adjusting the distance between the connecting plate (20) and the patient's back, reducing the space required for foam filling.
2. The adjustable posture fixation device for kyphotic patients according to claim 1, characterized in that, The lifting mechanism includes a fixed block (13) and a first screw (14); The fixing block (13) is fixed between the inner walls of both sides of the rectangular groove (11); The first screw (14) rotates through the fixing block (13) and is threadedly connected to the pillow pad (12); The first screw (14) is rotated to drive the pillow pad (12) to rise and fall.
3. The adjustable posture fixation device for kyphotic patients according to claim 2, characterized in that, The adjustment mechanism includes a connecting sleeve (21) and a second screw (22); The connecting sleeve (21) is fixed to the bottom of the movable plate (18); The second screw (22) is rotatably connected to the bottom of the slide plate (19) and threadedly connected to the connecting sleeve (21); Rotating the second screw (22) drives the slide plate (19) to slide along the movable plate (18).
4. The adjustable posture fixation device for kyphotic patients according to claim 3, characterized in that, An adjusting block (23) is fixedly provided on the outer wall of the second screw (22) and the bottom end of the first screw (14); Quick operation is achieved by rotating the adjustment block (23).
5. The adjustable posture fixation device for kyphotic patients according to claim 4, characterized in that, The base (1) has multiple threaded holes (2) on its surface edge; The outer wall of the enclosure (3) is provided with a plurality of first bolts (4), which are adapted to the threaded holes (2); The first bolt (4) fixes the enclosure (3) to the base (1).
6. The adjustable posture fixation device for hunchback patients according to claim 5, characterized in that, An edge plate (5) is fixed to the edge of the thermoplastic film (6); The surface of the edge plate (5) is provided with a plurality of second bolts (7), which are adapted to the threaded holes (2); The second bolt (7) secures the thermoplastic film (6) to the base (1).
7. The adjustable posture fixation device for kyphotic patients according to claim 6, characterized in that, It also includes the curved plate (8); Two positioning blocks (9) are fixed on one side of the arc plate (8); Two positioning grooves (10) are provided on one side of the base (1), and the positioning block (9) cooperates with the positioning grooves (10); The positioning block (9) is fitted into the positioning groove (10) to install the arc plate (8).