Orthosis suitable for foot drop
By designing an orthosis suitable for foot drop, combining an orthotic frame, connecting plates, linkage components, and tensioning components, the problem of existing orthotics being unable to adapt to individual needs has been solved, thereby improving patient comfort and rehabilitation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GEMMED MEDICAL INSTR
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-15
AI Technical Summary
Existing foot drop orthotics have a simple structure and cannot meet the individualized needs of different patients for ankle joint mobility during the rehabilitation process, resulting in stiff gait, atrophy of muscles around the joint, and affecting the rehabilitation effect.
An orthosis was designed, comprising an orthotic frame, connecting plates, linkage components, rotation components, and tension components. Through the cooperation of a first link, silicone pads, fixing blocks, and straps, the patient's foot is ensured to fit snugly with the connecting plates. Through the cooperation of a rotating pin, a second link, and a tension spring, flexible correction and recovery of the ankle joint are achieved.
It improves patient comfort and rehabilitation efficiency, reduces resistance, ensures natural ankle joint movement, and promotes rapid patient recovery.
Smart Images

Figure CN224235610U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of foot drop orthotics, specifically an orthotics suitable for foot drop. Background Technology
[0002] Foot drop, usually caused by nerve damage, muscle disease, or central nervous system lesions, prevents patients from actively performing ankle dorsiflexion. This results in a drooping, dragging gait with the foot. Statistics show that in my country alone, the number of patients with foot drop due to various causes is increasing annually. For example, approximately 30%-40% of patients with sequelae of cerebrovascular accidents experience varying degrees of foot drop, severely impacting their daily living abilities, independence, and quality of life.
[0003] Orthoses are an important assistive device in the rehabilitation treatment of foot drop. Early foot drop orthoses were relatively simple in structure, mostly rigid braces with a fixed shape, which could only provide basic foot support and restricted the natural movement of the ankle joint. They could not meet the individual needs of different patients for ankle joint mobility during the rehabilitation process. For example, traditional plastic foot braces, although they can prevent foot drop to some extent, prevent the ankle joint from flexing and extending during walking, resulting in a stiff and unnatural gait. Long-term use may also cause atrophy of the muscles around the joint, further affecting the rehabilitation effect.
[0004] Therefore, this utility model provides an orthosis suitable for foot drop. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, an orthosis suitable for foot drop is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The orthosis for foot drop includes an orthotic frame and a first connecting rod. A connecting plate is movably installed on one side of the orthotic frame, a fixing mechanism is provided on the top of the connecting plate, linkage components are provided on both sides of the connecting plate, rotating components are provided on both sides of the orthotic frame, tensioning components are provided on both sides of the orthotic frame, and a connecting component is provided on the inner side of the orthotic frame. Two sets of the first connecting rod are provided, rotatably installed on both sides of the orthotic frame, with the side of the first connecting rod away from the orthotic frame rotatably installed with both sides of the connecting plate. The first connecting rod ensures that a certain distance is always maintained between the connecting plate and the orthotic frame, ensuring that the patient's foot perfectly fits the connecting plate, thereby helping them recover quickly.
[0007] Preferably, the fixing mechanism includes a silicone pad, a fixing block, and a first strap. The silicone pad is fixedly installed on the top of the connecting plate, the fixing block is fixedly installed on both sides of the connecting plate, and the fixing block is fixedly installed on the top of the fixing block. In this solution, the silicone pad can play a cushioning role, improving the patient's comfort when wearing it and reducing the patient's resistance. The combination of the fixing block and the first strap can firmly fix the connecting plate to the patient's foot.
[0008] Preferably, the linkage component includes a rotating pin and a second link. The rotating pin is fixedly installed on both sides of the connecting plate, and the end of the rotating pin away from the connecting plate is rotatably installed with the second link. In this scheme, the cooperation between the rotating pin and the second link can be adjusted according to the movement angle of the fourth link, so that the connecting plate can be pulled by the fourth link, thereby achieving the correction effect.
[0009] Preferably, the rotating assembly includes a third link and a limiting block. Two sets of the third link are provided, and the two sets of the third link are rotatably installed on both sides of the top of the orthosis. The bottom of the inner wall of the third link is fixedly installed with the limiting block. In this scheme, the third link can pull the connecting plate by cooperating with the fourth link, so that the connecting plate has an upward force, thereby relieving the patient's foot drop. The limiting block can limit the fourth link to prevent it from excessively contracting.
[0010] Preferably, the tensioning assembly includes a fourth link and a tension spring. The tension spring is fixedly installed on one side of the inner wall of the third link, and the end of the tension spring away from the third link is fixedly installed with the fourth link. The fourth link is slidably installed on the inner wall of the third link. In this design, the tension spring can pull the fourth link to move through its own tension, so that the fourth link can pull the connecting plate to move, ensuring the high efficiency of patient recovery.
[0011] Preferably, the connecting assembly includes a second strap and a circular pad. The second strap is fixedly installed on one side of the top of the orthosis, and the circular pad is fixedly installed on the bottom of the inner side of the orthosis. In this configuration, the second strap can fix the orthosis to the patient's lower leg, and the circular pad can reduce the pressure on the patient's heel, making it more comfortable.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The orthosis for foot drop described in this utility model, through the arrangement of a first connecting rod, a silicone pad, a fixing block, and a first strap, enables the first connecting rod to maintain a certain distance between the connecting plate and the orthosis frame at all times, ensuring that the patient's foot can perfectly fit the connecting plate, thereby helping the patient to recover quickly. The silicone pad can play a cushioning role, improving the patient's comfort when wearing it and reducing the patient's resistance. The combination of the fixing block and the first strap can firmly fix the connecting plate to the patient's foot.
[0014] 2. The orthosis for foot drop described in this utility model, through the setting of a rotating pin and a second connecting rod, allows the cooperation between the rotating pin and the second connecting rod to be adjusted according to the movement angle of the fourth connecting rod, so that the connecting plate can be pulled by the fourth connecting rod, thereby achieving the corrective effect. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a front perspective view of the present invention;
[0017] Figure 2 This is a top view of the present invention;
[0018] Figure 3 yes Figure 1 Enlarged view of a portion of point A in the middle;
[0019] Figure 4 yes Figure 1 Enlarged view of a section at point B in the middle;
[0020] Figure 5 yes Figure 2 Enlarged view of a section at point C.
[0021] Legend:
[0022] 1. Orthopedic frame; 2. Connecting plate; 30. First connecting rod; 4. Fixing mechanism; 41. Silicone pad; 42. Fixing block; 43. First strap; 5. Linkage assembly; 51. Rotating pin; 52. Second connecting rod; 6. Rotating assembly; 61. Third connecting rod; 62. Limiting block; 7. Tension assembly; 71. Fourth connecting rod; 72. Tension spring; 8. Connecting assembly; 81. Second strap; 82. Circular pad. Detailed Implementation
[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 5 As shown in the embodiment of this utility model, an orthosis suitable for foot drop includes an orthotic frame 1 and a first connecting rod 30. A connecting plate 2 is movably installed on one side of the orthotic frame 1. A fixing mechanism 4 is provided on the top of the connecting plate 2. Linkage components 5 are provided on both sides of the connecting plate 2. Rotation components 6 are provided on both sides of the orthotic frame 1. Tension components 7 are provided on both sides of the orthotic frame 1. A connecting component 8 is provided on the inner side of the orthotic frame 1. Two sets of first connecting rods 30 are provided, and the two sets of first connecting rods 30 are rotatably installed on both sides of the orthotic frame 1. The side of the first connecting rod 30 away from the orthotic frame 1 is rotatably installed with the sides of the connecting plate 2. The fixing mechanism 4 includes a silicone pad 41, a fixing block 42, and a first strap 43. The silicone pad 41 is fixedly installed on the top of the connecting plate 2. The fixing block 42 is fixedly installed on both sides of the connecting plate 2. The first strap 43 is fixedly installed on the top of the first strap 43. The moving component 5 includes a rotating pin 51 and a second connecting rod 52. The rotating pin 51 is fixedly installed on both sides of the connecting plate 2. The end of the rotating pin 51 away from the connecting plate 2 is rotatably installed with the second connecting rod 52. The rotating component 6 includes a third connecting rod 61 and a limiting block 62. Two sets of third connecting rods 61 are provided. The two sets of third connecting rods 61 are rotatably installed on both sides of the top of the orthotic frame 1. The bottom of the inner wall of the third connecting rod 61 is fixedly installed with the limiting block 62. The tension component 7 includes a fourth connecting rod 71 and a tension spring 72. The tension spring 72 is fixedly installed on one side of the inner wall of the third connecting rod 61. The end of the tension spring 72 away from the third connecting rod 61 is fixedly installed with the fourth connecting rod 71. The fourth connecting rod 71 is slidably installed on the inner wall of the third connecting rod 61. The connecting component 8 includes a second strap 81 and a circular pad 82. The second strap 81 is fixedly installed on one side of the top of the orthotic frame 1. The circular pad 82 is fixedly installed on the bottom of the inner side of the orthotic frame 1.
[0026] like Figures 1 to 5As shown, the first link 30 ensures that the connecting plate 2 and the orthotic frame 1 maintain a certain distance, guaranteeing a perfect fit between the patient's foot and the connecting plate 2, thus aiding in rapid recovery. The silicone pad 41 provides cushioning, improving patient comfort and reducing resistance. The combination of the fixing block 42 and the first strap 43 firmly secures the connecting plate 2 to the patient's foot. The combination of the rotating pin 51 and the second link 52 allows adjustment based on the movement angle of the fourth link 71, enabling the connecting plate 2 to be pulled by the fourth link 71. To achieve the corrective effect, the third link 61, in conjunction with the fourth link 71, pulls the connecting plate 2, giving it an upward force, thereby relieving the patient's foot drop. The limiting block 62 limits the fourth link 71 to prevent excessive contraction. The tension spring 72 pulls the fourth link 71 with its own tension, enabling the fourth link 71 to pull the connecting plate 2, ensuring efficient patient recovery. The second strap 81 fixes the orthosis 1 to the patient's lower leg, and the circular pad 82 reduces pressure on the patient's heel, making it more comfortable.
[0027] Working principle: During operation, first place the orthotic frame 1 on a flat surface, then open the second strap 81 and the first strap 43 in sequence. Next, place the user's foot on top of the connecting plate 2, and place the heel on top of the circular pad 82. Finally, use the second strap 81 to bind the user's calf, and then use the first strap 43 to bind the user's instep. This completes the installation. During use, the tension spring 72 will continuously pull the fourth link 71 to move the second link 52. The second link 52 will pull the connecting plate 2 to move. Under the action of the tension, the connecting plate 2 will pull the user's feet to keep them flat, effectively relieving foot pain.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An orthosis for foot drop, comprising an orthotic frame (1) and a first link (30); characterized in that: A connecting plate (2) is movably installed on one side of the orthotic frame (1). A fixing mechanism (4) is provided on the top of the connecting plate (2). Linkage components (5) are provided on both sides of the connecting plate (2). Rotation components (6) are provided on both sides of the orthotic frame (1). Tensioning components (7) are provided on both sides of the orthotic frame (1). A connecting component (8) is provided on the inner side of the orthotic frame (1).
2. The orthosis for foot drop according to claim 1, characterized in that: The first connecting rod (30) is provided in two sets. The two sets of the first connecting rod (30) are rotatably installed on both sides of the orthotic frame (1). The side of the first connecting rod (30) away from the orthotic frame (1) is rotatably installed on both sides of the connecting plate (2).
3. The orthosis for foot drop according to claim 2, characterized in that: The fixing mechanism (4) includes a silicone pad (41), a fixing block (42) and a first strap (43). The silicone pad (41) is fixedly installed on the top of the connecting plate (2). The fixing block (42) is fixedly installed on both sides of the connecting plate (2). The fixing block (42) is fixedly installed on the top of the fixing block (42).
4. The orthosis for foot drop according to claim 3, characterized in that: The linkage component (5) includes a rotating pin (51) and a second link (52). The rotating pin (51) is fixedly installed on both sides of the connecting plate (2). The end of the rotating pin (51) away from the connecting plate (2) is rotatably installed with the second link (52).
5. The orthosis for foot drop according to claim 4, characterized in that: The rotating assembly (6) includes a third link (61) and a limiting block (62). The third link (61) is provided in two sets, and the two sets of the third link (61) are rotatably installed on both sides of the top of the orthopedic frame (1). The bottom of the inner wall of the third link (61) is fixedly installed with the limiting block (62).
6. An orthosis for foot drop according to claim 5, characterized in that: The tension assembly (7) includes a fourth link (71) and a tension spring (72). The tension spring (72) is fixedly installed on one side of the inner wall of the third link (61). The end of the tension spring (72) away from the third link (61) is fixedly installed with the fourth link (71). The fourth link (71) is slidably installed on the inner wall of the third link (61).
7. An orthosis for foot drop according to claim 6, characterized in that: The connecting assembly (8) includes a second strap (81) and a circular pad (82). The second strap (81) is fixedly installed on one side of the top of the orthotic frame (1), and the circular pad (82) is fixedly installed on the bottom of the inner side of the orthotic frame (1).