Down's lower limb force line correction brace

CN122997899APending Publication Date: 2026-10-30BEIJING FUYUTIANCHENG PROSTHETICS&ORTHOTICS CO LTD
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Patent Information

Application Number
CN202611435056.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-09-16
Publication Date
2026-10-30

AI Technical Summary

Technical Problem

[0002]当前下肢术后、骨折康复期患者的日常防护多依赖硬质护具或传统落地式康复支架,这类设备普遍存在明显使用短板:硬质护具无法根据腿部肿胀程度动态调整松紧,长时间佩戴易在骨突部位形成局部压迫,诱发压疮或血液循环不畅;而传统落地式支架体积庞大,只能在病床旁固定使用,无法适配座椅场景,患者坐起休养、就餐或日常活动时,腿部缺乏稳定防护,稍有不慎就可能因无意识晃动、外力磕碰牵拉创面,延长康复周期

Benefits of technology

[0009]与现有技术相比,本发明的有益效果是:依托座椅侧装的安装杆结构,装置无需额外占用地面空间,适配轮椅、陪护椅、普通座椅等多种场景,患者落座即可使用,避免了传统落地式康复装置移动不便、易绊倒的问题。

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Abstract

The application discloses a Down's lower limb force line correction support and belongs to the technical field of lower limb rehabilitation protection, and aims to solve the problems of poor adaptability of existing hard protection tools and the incapability of traditional floor type rehabilitation supports to adapt to a seat scene; the device is provided with a protection mechanism composed of two groups of longitudinally arranged leg support mechanisms on a foot supporting plate, each group of support mechanisms is formed by symmetric half-arc-shaped protection plates, a bottom protection plate is hinged to the foot supporting plate, the distance between upper and lower protection plates is adjusted through an expansion and contraction component, and an air bag with a hand pinching type inflation pump is arranged on the inner wall of the protection plate; the device can realize self-adaptive adjustment of a leg posture in a seat scene, complete flexible wrapping protection through the air bag, adapt to patients with different leg types, and reduce the risk of secondary injury.
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Description

Technical Field

[0001] This invention relates to a corrective brace, specifically a Down syndrome lower limb alignment corrective brace. Background Technology

[0002] Currently, daily protection for patients recovering from lower limb surgery or fractures largely relies on rigid braces or traditional floor-standing rehabilitation braces. These devices generally have significant drawbacks: rigid braces cannot dynamically adjust their tightness according to leg swelling, and prolonged wear can easily cause local pressure on bony prominences, leading to pressure sores or poor blood circulation; while traditional floor-standing braces are bulky and can only be used fixedly beside the bed, making them unsuitable for chair settings. When patients sit up to rest, eat, or engage in daily activities, their legs lack stable protection, and even slight carelessness can lead to unintentional swaying or external impacts that pull on the wound, prolonging the recovery period. Furthermore, most existing devices are complex in structure, requiring professional personnel for adjustment and installation, which is difficult for ordinary family caregivers to master quickly. Many patients are forced to remain in bed, severely impacting their quality of life during recovery and hindering the maintenance of normal blood circulation in the lower limbs. Therefore, a Down syndrome lower limb alignment correction brace needs to be designed to address this problem. Summary of the Invention

[0003] The purpose of this invention is to provide a lower limb alignment correction brace for Down syndrome, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The Down syndrome lower limb alignment correction brace includes a footrest, on which a leg protection mechanism is provided. The leg protection mechanism consists of two sets of leg support mechanisms arranged longitudinally. Each leg support mechanism includes two semi-circular protective plates, which are symmetrically arranged. One end of the semi-circular protective plate in the lower leg support mechanism is hinged to the footrest, and the other end of this semi-circular protective plate has a mounting groove. A telescopic component is provided in the mounting groove, and the other end of the telescopic component is connected to the upper semi-circular protective plate. The telescopic component is used to adjust the distance between the upper and lower semi-circular protective plates. Each semi-circular protective plate has a protective unit on its inner wall.

[0006] As a further aspect of the present invention: the protective unit includes an airbag, each arc-shaped protective plate has an airbag on its inner wall, and an inflation tube is connected to the airbag, with a hand-operated air pump connected to the end of the inflation tube away from the airbag.

[0007] As a further aspect of the present invention: a placement box for placing a hand-operated air pump is installed on the outer wall of the arc-shaped protective plate.

[0008] As a further aspect of the present invention: the telescopic component is an electric telescopic rod.

[0009] Compared with the prior art, the beneficial effects of the present invention are: relying on the mounting rod structure mounted on the side of the seat, the device does not need to occupy additional ground space, and is suitable for various scenarios such as wheelchairs, companion chairs, and ordinary seats. Patients can use it as soon as they sit down, avoiding the problems of traditional floor-mounted rehabilitation devices being inconvenient to move and easy to trip over.

[0010] The layered semi-circular protective plate, combined with adjustable telescopic components, can accommodate patients of different heights and leg lengths, ensuring that the affected joint is always in a comfortable functional position.

[0011] The independently controllable airbag protection unit can adjust the inflation pressure according to the patient's tolerance, flexibly disperse local pressure, avoid pressure sores caused by long-term wearing of hard protective gear, and at the same time buffer accidental external impact, greatly reducing the risk of secondary injury during the recovery period.

[0012] The hand-operated air pump is stored in the outer storage box, allowing for quick operation by a single person without the need for professional caregivers, significantly lowering the barrier to entry for home rehabilitation settings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a brace for correcting the lower limb alignment in Down syndrome.

[0014] Figure 2 This is a schematic diagram of the lower limb alignment correction brace for Down syndrome from another angle.

[0015] Figure 3 This is a schematic diagram of the arc-shaped protective plate in the Down syndrome lower limb alignment correction brace.

[0016] In the diagram: 6. Curved protective plate; 7. Placement box; 9. Inflation tube; 10. Hand-operated air pump; 11. Telescopic component; 12. Mounting slot; 15. Foot support plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-3As an embodiment of the present invention, the Down syndrome lower limb alignment correction brace includes a footrest 15, on which a leg protection mechanism is provided. The leg protection mechanism consists of two sets of leg support mechanisms, which are arranged longitudinally. Each leg support mechanism includes two semi-circular protective plates 6, which are symmetrically arranged. One end of the semi-circular protective plate 6 in the lower leg support mechanism is hinged to the footrest 15, and the other end of the semi-circular protective plate 6 is provided with a mounting groove 12. A telescopic member 11 is provided in the mounting groove 12. The other end of the telescopic member 11 is connected to the upper semi-circular protective plate 6. The telescopic member 11 is used to adjust the distance between the upper and lower semi-circular protective plates 6. A protective unit is provided on the inner wall of each semi-circular protective plate 6.

[0019] In this embodiment, the patient gently places their affected leg on the footrest 15. The bottom semi-circular protective plate 6 flips upward and closes around the hinge point, first providing basic support for the lower side of the leg. Then, the longitudinal spacing between the upper and lower semi-circular protective plates 6 is precisely adjusted by the telescopic component 11 in the mounting groove 12, aligning the two support mechanisms with the mid-calf and lower thigh respectively, adapting to the leg lengths of patients of different heights. The two longitudinally arranged leg support mechanisms form a layered wrapping structure, with the symmetrically arranged semi-circular protective plates 6 enclosing the legs from both sides towards the center, preventing rigid compression. This not only limits accidental swaying of the affected leg, preventing unconscious movements of the patient during recovery from pulling on the wound, but also, when the seat moves slightly or bumps, the overall fixed structure offsets external impacts, reducing the risk of secondary injury.

[0020] Furthermore, the arc-shaped protective plate 6 is made of elastic silicone material.

[0021] Please see Figures 1-3 As an embodiment of the present invention, the protective unit includes an airbag, and each arc-shaped protective plate 6 has an airbag on its inner wall, and an inflation tube 9 is connected to the airbag. The end of the inflation tube 9 away from the airbag is connected to a hand-operated air pump 10; a placement box 7 for placing the hand-operated air pump 10 is installed on the outer wall of the arc-shaped protective plate 6.

[0022] In this embodiment, after the device is firmly fixed to the side of the seat by the mounting rod, the patient adjusts their leg position and takes out the hand-operated air pump 10 from the placement box 7 on the outer wall of the arc-shaped protective plate 6. The pump is then slowly inflated through the inflation tube 9 into the individual airbags inside each semi-arc protective plate 6. As the airbags gradually expand, the inflation volume can be adjusted according to the patient's real-time feedback, ensuring the airbags completely fill the gap between the rigid protective plate and the leg skin. For leg swelling or postoperative wound areas, the inflation pressure can be appropriately reduced to achieve a pressure-free, flexible fit and fixation, avoiding the local pressure sores caused by prolonged wear of traditional rigid braces. After inflation, the hand-operated air pump 10 is returned to the outer placement box 7 to prevent parts from being scattered or lost. The inflated airbags can evenly distribute the lateral pressure on the legs. When the patient moves slightly while sitting in the seat, or when someone accidentally touches the protective device, the airbags can cushion the impact through their own deformation, preventing external force from being directly transmitted to fractures or postoperative recovery areas. Meanwhile, the independent inflation design of each airbag allows for individual adjustment of support strength based on the tolerance of different parts of the thigh and calf, adapting to the protection needs of different recovery stages after surgery. This allows patients to maintain leg comfort even when sitting in a chair for extended periods without frequently adjusting the position of the protective gear.

[0023] The working principle of this invention is as follows: The patient can directly place the affected leg on the footrest 15. The bottom semi-circular protective plate 6 rotates around the hinge point to complete the basic support. Then, the longitudinal distance between the upper and lower semi-circular protective plates 6 is adjusted by the telescopic component 11 in the mounting groove 12, so that the two sets of leg support mechanisms are precisely aligned with the calf and thigh respectively. Then, the hand-operated air pump 10 in the box 7 is taken out and inflated as needed into the independent airbags on the inner wall of each semi-circular protective plate 6, so that the airbags completely fill the gap between the protective plate and the leg, forming a flexible wrapping support. This not only limits accidental leg swaying but also buffers external impact. No complicated operation is required throughout the process, and stable rehabilitation protection can be achieved in a chair setting.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lower limb alignment correction brace for Down syndrome, comprising a footrest, characterized in that, The footrest is equipped with a leg protection mechanism, which consists of two sets of leg support mechanisms arranged longitudinally. Each leg support mechanism includes two semi-circular protective plates, which are symmetrically arranged. One end of the semi-circular protective plate in the bottom leg support mechanism is hinged to the footrest, and the other end of this semi-circular protective plate has a mounting groove. A telescopic component is provided in the mounting groove, and the other end of the telescopic component is connected to the upper semi-circular protective plate. The telescopic component is used to adjust the distance between the upper and lower semi-circular protective plates. Each semi-circular protective plate has a protective unit on its inner wall.

2. The Down syndrome lower limb alignment correction brace according to claim 1, characterized in that, The protective unit includes an airbag. Each arc-shaped protective plate has an airbag on its inner wall, and an inflation tube is connected to the airbag. A hand-operated air pump is connected to the end of the inflation tube away from the airbag.

3. The Down syndrome lower limb alignment correction brace according to claim 4, characterized in that, A placement box for holding a hand-operated air pump is installed on the outer wall of the arc-shaped protective plate.

4. The Down syndrome lower limb alignment correction brace according to claim 1, characterized in that, The telescopic component is an electric telescopic rod.