Auxiliary fixator for children's lower limb fracture
By designing a detachable arc-shaped plate connected to mounting bolts, a pediatric lower limb fracture auxiliary fixation device was developed, which solved the problem of heel wear and improved structural stability and comfort, thus adapting to the individual needs of children.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
- Filing Date
- 2025-04-15
- Publication Date
- 2026-07-21
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Figure CN224523364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary fixation technology, specifically to an auxiliary fixation device for lower limb fractures in children. Background Technology
[0002] Today, lower limb orthotics for children are devices that help correct lower limb deformities or posture in children. They can improve a child's gait and walking ability by supporting and adjusting the hips, knees and feet. These devices provide stable support, enabling children to stand and walk correctly, while also helping to improve their muscle strength and balance. They can be personalized to meet the specific needs of each child to ensure the best results.
[0003] Most currently used lower limb immobilization devices for children are one-piece molded designs with a 90-degree bend at the heel, which easily causes friction between the child's heel and the immobilizer, leading to wear and tear on the child's heel. To address these issues, an innovative design has been developed based on existing immobilization devices. Utility Model Content
[0004] The purpose of this invention is to provide an auxiliary fixation device for lower limb fractures in children, so as to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pediatric lower limb fracture auxiliary fixation device, comprising a first plate that fits against the lower limb, a second plate having a surface capable of accommodating the heel area at one end of the first plate, a third plate having a foot-fitting surface at the end of the second plate away from the first plate, mounting bolts at both ends of the second plate, the second plate being connected to the first plate and the third plate respectively by the mounting bolts, reinforcing ribs being provided inside the second plate, and straps being provided on both sides of the first plate and the third plate respectively.
[0006] Preferably, the two ends of the second plate are respectively provided with a first mounting hole and a second mounting hole that match the mounting bolt. The mounting bolt passes through the corresponding first mounting hole and second mounting hole and connects and fixes the two ends of the second plate to the first plate and the third plate, respectively.
[0007] Preferably, the first plate has a first mating hole corresponding to the first mounting hole at one end near the second plate.
[0008] Preferably, the third plate has a second mating hole corresponding to the second mounting hole at one end near the second plate.
[0009] Preferably, the second plate has a concave arc-shaped structure, and the reinforcing ribs are embedded in the second plate and evenly distributed.
[0010] Preferably, the second plate has a notch cut out at the heel position, and the heel is inserted into the notch when worn.
[0011] Preferably, a protective pad is provided on the inner side of the second plate, and an adhesive layer is provided on the surface of the protective pad and the inner wall of the second plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the arc-shaped second plate of this pediatric lower limb fracture fixation device is located at the heel position and can be installed between the first and second plates by mounting bolts, which also facilitates subsequent disassembly and replacement. The arc-shaped second plate provides space for the child's heel, and the second plate is equipped with reinforcing ribs to improve the structural stability of the second plate. At the same time, a protective pad is provided on the inner side of the second plate to prevent chafing of the heel. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a pediatric lower limb fracture auxiliary fixation device according to an embodiment of the present invention;
[0014] Figure 2 This is a schematic diagram of the reinforcing rib distribution structure according to an embodiment of the present invention;
[0015] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;
[0016] Figure 4 This is a schematic diagram of the structure of a pediatric lower limb fracture auxiliary fixation device according to another embodiment of the present invention.
[0017] In the figure: 1. First plate; 2. First mating hole; 3. Second plate; 4. First mounting hole; 5. Mounting bolt; 6. Third plate; 7. Second mating hole; 8. Second mounting hole; 9. Reinforcing rib; 10. Protective pad; 11. Adhesive layer. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figures 1-4This utility model provides an auxiliary fixation device for lower limb fractures in children, including a first plate 1 that fits against the lower limb, a second plate 3 with a surface that can accommodate the heel area at one end of the first plate 1, a third plate 6 with the sole of the foot fitting at the end of the second plate 3 away from the first plate 1, mounting bolts 5 at both ends of the second plate 3, and the second plate 3 is connected to the first plate 1 and the third plate 6 respectively by the mounting bolts 5, a reinforcing rib 9 is provided inside the second plate 3, and straps are provided on both sides of the first plate 1 and the third plate 6 respectively.
[0020] In one or more embodiments of this utility model, the two ends of the second plate 3 are respectively provided with a first mounting hole 4 and a second mounting hole 8 that match the mounting bolt 5. The mounting bolt 5 passes through the corresponding first mounting hole 4 and second mounting hole 8 and connects and fixes the two ends of the second plate 3 to the first plate 1 and the third plate 6 respectively. The end of the first plate 1 near the second plate 3 is provided with a first mating hole 2 corresponding to the first mounting hole 4, and the end of the third plate 6 near the second plate 3 is provided with a second mating hole 7 corresponding to the second mounting hole 8. This facilitates the mating of one end of the second plate 3 with the first plate 1 through the first mounting hole 4, the first mating hole 2 and the mounting bolt 5, while the other end of the second plate 3 can be mated with the third plate 6 through the second mounting hole 8, the second mating hole 7 and the mounting bolt 5. This also facilitates the subsequent replacement of the second plate 3.
[0021] like Figure 1 As shown, in one or more embodiments of the present invention, the second plate 3 is a concave arc-shaped structure to form an area for accommodating the heel. The reinforcing ribs 9 are embedded in the second plate 3 and evenly distributed. The setting of the reinforcing ribs 9 improves the structural strength and compressive strength of the second plate 3.
[0022] like Figure 4 As shown, in one or more embodiments of this utility model, the second plate 3 has a notch (indicated by the dotted line in the figure) cut out at the heel position to form an area to accommodate the heel. When worn, the heel is inserted into the notch, which can prevent the child's heel from rubbing against the fixator, thus avoiding wear and damage to the child's heel.
[0023] In one or more embodiments of this utility model, a protective pad 10 is provided on the inner side of the second plate 3, and an adhesive layer 11 is provided on the surface of the protective pad 10 and the inner wall of the second plate 3, which facilitates the protective pad 10 to be attached to the second plate 3 through the adhesive layer 11, thereby improving the comfort of children's heels.
[0024] It should be noted that when the second plate 3 has a notch cut out at the heel position, the protective pad 10 and the adhesive layer 11 also have corresponding notches, so that the heel can be inserted into the notch on the second plate 3.
[0025] according to Figures 1-3 As shown, firstly, one end of the second plate 3 is connected to the first plate 1 through the first mounting hole 4, the first docking hole 2, and the mounting bolt 5. Then, the other end of the second plate 3 is connected to the third plate 6 through the second mounting hole 8, the second docking hole 7, and the mounting bolt 5. Next, the protective pad 10 is adhered to the inner surface of the second plate 3 through the adhesive layer 11. Then, the child's lower leg and foot are placed on the first plate 1 and the third plate 6 respectively, so that the child's heel is placed inside the second plate 3. Then, the straps on the first plate 1 and the third plate 6 are used to bind the child's lower leg and foot. The setting of the reinforcing rib 9 improves the structural strength and compressive strength of the second plate 3, and can prevent the second plate 3 from deforming. The protective pad 10 is attached to the second plate 3 through the adhesive layer 11, which can improve the comfort of the child's heel.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pediatric lower limb fracture auxiliary fixation device, characterized in that: The device includes a first plate (1) that fits against the lower limbs, a second plate (3) with a surface that can accommodate the heel area at one end of the first plate (1), a third plate (6) that fits against the sole of the foot at the end of the second plate (3) away from the first plate (1), mounting bolts (5) at both ends of the second plate (3), the second plate (3) being connected to the first plate (1) and the third plate (6) respectively by the mounting bolts (5), reinforcing ribs (9) inside the second plate (3), and straps on both sides of the first plate (1) and the third plate (6).
2. The auxiliary fixation device for lower limb fractures in children according to claim 1, characterized in that: The second plate (3) has a first mounting hole (4) and a second mounting hole (8) at both ends that match the mounting bolt (5). The mounting bolt (5) passes through the corresponding first mounting hole (4) and second mounting hole (8) and connects and fixes the two ends of the second plate (3) to the first plate (1) and the third plate (6) respectively.
3. The auxiliary fixation device for lower limb fractures in children according to claim 2, characterized in that: The first plate (1) has a first mating hole (2) at one end near the second plate (3) that corresponds to the first mounting hole (4).
4. The auxiliary fixation device for lower limb fractures in children according to claim 2, characterized in that: The third plate (6) has a second mating hole (7) at one end near the second plate (3) that corresponds to the second mounting hole (8).
5. The auxiliary fixation device for lower limb fractures in children according to claim 1, characterized in that: The second plate (3) is a concave arc-shaped structure, and the reinforcing ribs (9) are embedded in the second plate (3) and evenly distributed.
6. The auxiliary fixation device for lower limb fractures in children according to claim 1, characterized in that: The second plate (3) has a notch cut out at the heel position, and the heel is inserted into the notch when worn.
7. A pediatric lower limb fracture auxiliary fixation device according to any one of claims 1-6, characterized in that: The inner side of the second plate (3) is provided with a protective pad (10), and an adhesive layer (11) is provided on the surface of the protective pad (10) and the inner wall of the second plate (3).