Multi-directional ankle-foot orthosis

Abstract

The utility model relates to the technical field of ankle foot orthosis, and disclose multidirectional adjustment ankle foot orthosis, including the leg shell, still including the adjustment connecting seat and fixed assembly, the bottom of leg shell is provided with the leg shell of the support of user's foot, the foot pad of the foot bottom board support of user is seted up on the leg shell, the inside of leg shell is provided with the sweat absorption of sweat absorbing cotton. Through the sliding sliding adjustment seat drive the leg shell on the first fixed connecting plate and slide to the appropriate position, through the twist fixed bolt, make its fixed bolt and leg shell contact, realize to fixed, can adapt to the different calf length of user, the gap or excessive compression between orthosis and the extremity does not exist, has brought the convenience to wear, has guaranteed the gait and the motion function, can satisfy the individualized demand of different patients, has guaranteed the application effect under different pathological state, has improved the correction effect to ankle foot deformity, has improved the effectiveness of rehabilitation training.

Description

Technical Field

[0001] This utility model relates to the field of ankle and foot orthosis technology, and in particular to a multi-directional adjustable ankle and foot orthosis. Background Technology

[0002] The ankle and foot are collectively referred to as the ankle joint and foot in the lower limbs of the human body. They are key parts that support body weight and enable walking and movement functions. Multi-directional adjustable ankle and foot orthoses are advanced lower limb assistive devices. Through adjustable structural design, they can achieve precise control and support of the ankle joint and foot in multiple directions, and are suitable for patients with motor dysfunction caused by different etiologies.

[0003] In existing technologies, because users' ankle and foot lengths vary, traditional devices cannot be adjusted according to these lengths. This inability to adapt to different lower leg lengths can lead to gaps or excessive pressure between the orthosis and the limb, causing discomfort and potentially affecting gait and motor function. Orthoses that cannot be adjusted for lower leg length may not meet the individualized needs of different patients, limiting their effectiveness in various pathological conditions. Differences in lower leg length can also prevent the orthosis from applying corrective force accurately, affecting the correction of ankle and foot deformities and reducing the effectiveness of rehabilitation training. Therefore, a multi-directional adjustable ankle and foot orthosis is needed to address these issues. Utility Model Content

[0004] To overcome the problem that multi-directional adjustable ankle-foot orthoses cannot be adjusted according to the user's ankle and foot length, thus affecting gait and motor function, limiting their application effect in different pathological states and affecting the correction effect on ankle and foot deformities.

[0005] The technical solution of this utility model is as follows: a multi-directional adjustable ankle-foot orthosis, including a leg cover, an adjusting connecting seat, and a fixing component. The bottom of the leg cover is provided with a foot cover to support the user's foot, and the foot cover is provided with a foot pad to support the user's foot sole. The inside of the leg cover is provided with sweat-absorbing cotton to absorb sweat, and the leg cover is provided with ventilation holes for ventilation and heat dissipation of the legs and feet. The adjusting connecting seat is provided on the leg cover, and a sliding adjusting seat is slidably connected inside the adjusting connecting seat. A first limiting rod and a second limiting rod are fixedly connected inside the adjusting connecting seat to limit the movement of the sliding adjusting seat. A fixing bolt is threaded inside the sliding adjusting seat, and a first fixing connecting plate is fixedly connected to the sliding adjusting seat.

[0006] Preferably, the sliding adjustment seat has through holes at corresponding positions of the first limiting rod and the second limiting rod, and the sliding adjustment seat slides on the first limiting rod and the second limiting rod.

[0007] Preferably, there are two first fixed connecting plates, and the two first fixed connecting plates are symmetrically fixedly connected to the sliding adjustment seat.

[0008] Preferably, a second fixed connecting block is fixedly connected to the foot cover, and a fixed threaded post is fixedly connected to the second fixed connecting block. The fixed threaded post is rotatably connected inside the first fixed connecting plate, and a fixed nut is threaded onto the fixed threaded post.

[0009] Preferably, the first fixed connecting plate has a through hole at the corresponding position of the fixed threaded post, and the fixed threaded post rotates inside the through hole.

[0010] Preferably, the fixing component includes a mounting connecting shell, a fixing strap for fixing the user's lower leg is movably connected inside the mounting connecting shell, the fixing strap is fixedly connected to the leg guard shell, a limiting fixing plate is provided on the mounting connecting shell to limit the fixing strap, a sliding limiting post is slidably connected inside the mounting connecting shell, a fixing limiting post is provided on the sliding limiting post to limit the fixing strap, a return spring is fixedly connected between the fixing limiting post and the mounting connecting shell, a limiting ring is provided on the sliding limiting post to limit the sliding of the sliding limiting post, and a fixing limiting rod is fixedly connected to the fixing limiting post, the fixing limiting rod is slidably connected inside the mounting connecting shell.

[0011] Preferably, the fixing strap is provided with teeth, the fixing limit post is provided with teeth, and the teeth on the fixing strap and the teeth on the fixing limit post are engaged with each other.

[0012] The beneficial effects of this utility model are: 1. Compared to ankle-foot orthoses that cannot be adjusted according to the user's ankle and foot length, this orthosis allows the leg guard shell on the first fixed connecting plate to slide to the appropriate position by sliding the sliding adjustment seat. By twisting the fixing bolt, the fixing bolt contacts the leg guard shell, achieving fixation. This can adapt to different lower leg lengths of users, and there will be no gap or excessive pressure between the orthosis and the limb, which brings convenience to wearing, ensures gait and motor function, meets the personalized needs of different patients, ensures the application effect under different pathological conditions, improves the correction effect of ankle and foot deformities, and improves the effectiveness of rehabilitation training.

[0013] 2. By sliding the fixing strap into the appropriate position inside the mounting housing, the return spring pushes the fixing limit post to contact the fixing strap and achieve fixation by releasing the limiting ring. The calf size adaptation design ensures that the orthosis fits the limb closely and avoids ankle joint angle displacement caused by orthosis slippage during walking. Through the strap fixation, the orthosis can more accurately transmit corrective force to the ankle and foot joint, improving the control effect on inversion / valgus deformity. The strap fixation and multi-directional joint adjustment work together to ensure that after adjusting the orthosis angle, the joint stability is maintained by the strap pressure. Through the precise fit of the strap fixation, the orthosis can more effectively correct abnormal gait patterns and promote compensatory recovery of neuromuscular function. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of the present utility model multi-directional adjustable ankle-foot orthosis; Figure 2 This is a schematic diagram of the structure of the adjusting connecting seat of this utility model; Figure 3 for Figure 1 Schematic diagram of the external components of the middle leg guard shell; Figure 4 for Figure 1 A schematic diagram of the internal structure of the connecting shell in the middle installation; Figure 5 for Figure 1 A schematic diagram of the structure of the fixed component.

[0015] Explanation of reference numerals in the attached drawings: 1. Leg guard shell; 2. Foot guard shell; 3. Foot pad; 4. Sweat-absorbing cotton; 5. Ventilation hole; 801. Adjustable connecting seat; 802. First limiting rod; 803. Second limiting rod; 804. Sliding adjusting seat; 805. Fixing bolt; 806. First fixed connecting plate; 807. Second fixed connecting block; 808. Fixing threaded post; 809. Fixing nut; 901. Mounting connecting shell; 902. Fixing strap; 903. Limiting fixing plate; 904. Sliding limiting post; 905. Fixed limiting post; 906. Return spring; 907. Limiting ring; 908. Fixed limiting rod. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please see Figure 1 - Figure 5This utility model provides an embodiment of a multi-directional adjustable ankle-foot orthosis, including a leg support shell 1, an adjusting connecting seat 801, and a fixing assembly. The bottom of the leg support shell 1 is provided with a foot support shell 2 to support the user's foot. The foot support shell 2 is provided with a foot pad 3 to support the user's foot sole. The inside of the leg support shell 1 is provided with sweat-absorbing cotton 4. The leg support shell 1 is provided with ventilation holes 5 for ventilation and heat dissipation of the legs and feet. The adjusting connecting seat 801 is disposed on the leg support shell 1. A sliding adjusting seat 804 is slidably connected inside the adjusting connecting seat 801. A first limiting rod is fixedly connected inside the adjusting connecting seat 801 to limit the movement of the sliding adjusting seat 804. The sliding adjustment seat 804 is internally threaded with a fixing bolt 805 and a second limiting rod 803. A first fixing connecting plate 806 is fixedly connected to the sliding adjustment seat 804. According to the height of the user's lower leg, the sliding adjustment seat 804 drives the first fixing connecting plate 806 to slide to a suitable position inside the adjustment connecting seat 801. When the sliding adjustment seat 804 slides, it is limited by the first limiting rod 802 and the second limiting rod 803. When the height is adjusted to a suitable position, the fixing bolt 805 is turned to fix the position of the sliding adjustment seat 804.

[0018] Please see Figure 2 - Figure 3 In this embodiment, the sliding adjustment seat 804 has through holes at corresponding positions of the first limiting rod 802 and the second limiting rod 803. The sliding adjustment seat 804 slides on the first limiting rod 802 and the second limiting rod 803. The through holes make the sliding adjustment seat 804 more stable when sliding inside the adjustment connecting seat 801. Two first fixed connecting plates 806 are provided, and the two first fixed connecting plates 806 are symmetrically fixedly connected to the sliding adjustment seat 804. The two first fixed connecting plates 806 make the leg guard shell 1 and the foot guard shell 2 more stable during adjustment. A second fixed connecting block 807 is fixedly connected to the foot guard shell 2. A fixed threaded post 808 is connected to the inside of the first fixed connecting plate 806. A fixed nut 809 is threaded onto the fixed threaded post 808. By rotating the second fixed connecting block 807 on the foot protector 2, the second fixed connecting block 807 is rotated to a suitable position. By twisting, the fixed nut 809 is fixed, so that the fixed nut 809 contacts the first fixed connecting plate 806 to fix the rotation angle. The first fixed connecting plate 806 has a through hole at the corresponding position of the fixed threaded post 808. The fixed threaded post 808 rotates inside the through hole. The through hole inside the first fixed connecting plate 806 makes the rotation of the foot protector 2 more stable.

[0019] Please see Figure 4 - Figure 5In this embodiment, the fixing component includes a mounting connecting shell 901. A fixing strap 902 for fixing the user's lower leg is movably connected inside the mounting connecting shell 901. The fixing strap 902 is fixedly connected to the leg guard shell 1. A limiting fixing plate 903 is provided on the mounting connecting shell 901 to limit the movement of the fixing strap 902. A sliding limiting post 904 is slidably connected inside the mounting connecting shell 901. A fixing limiting post 905 is provided on the sliding limiting post 904 to limit the movement of the fixing strap 902. A return spring 906 is fixedly connected between the fixing limiting post 905 and the mounting connecting shell 901. A limiting ring 907 is provided on the sliding limiting post 904 to limit its movement. A fixing limiting rod 908 is fixedly connected to the fixing limiting post 905. The fixing limiting rod 908 is slidably connected to the mounting connecting shell 901. Inside the housing 1, by inserting the fixing strap 902 into the housing 901, pulling the limiting ring 907 causes the fixing limiting post 905 on the sliding limiting post 904 to disengage from the fixing strap 902, allowing the fixing strap 902 to slide to a suitable position. Releasing the limiting ring 907 and the return spring 906 pushes the fixing limiting post 905 so that the teeth on the fixing limiting post 905 engage with the teeth on the fixing strap 902, thus fixing the fixing strap 902. The fixing strap 902 and the fixing limiting post 905 are provided with teeth, and the teeth on the fixing strap 902 and the teeth on the fixing limiting post 905 engage with each other. By engaging the teeth on the fixing strap 902 and the fixing limiting post 905, the fixing strap 902 is more stable when fixed.

[0020] During operation and adjustment, based on the user's calf height, the sliding adjustment seat 804 drives the first fixed connecting plate 806 to slide to a suitable position within the adjustment connecting seat 801. As the sliding adjustment seat 804 slides, it is limited by the first limiting rod 802 and the second limiting rod 803. When the height is adjusted to a suitable position, the fixing bolt 805 is turned to fix the position of the sliding adjustment seat 804. The second fixed connecting block 807 on the foot protector shell 2 is rotated to a suitable position, and then fixed by turning. The fixing nut 809 is brought into contact with the first fixing connecting plate 806 to fix the rotation angle. When fixing the device, the fixing strap 902 is inserted into the mounting connecting shell 901. By pulling the limiting ring 907, the fixing limiting post 905 on the sliding limiting post 904 is disengaged from the fixing strap 902, causing it to slide to the appropriate position. By releasing the limiting ring 907, the return spring 906 pushes the fixing limiting post 905 so that the teeth on the fixing limiting post 905 engage with the teeth on the fixing strap 902, thus fixing the fixing strap 902.

[0021] Through the above steps, the sliding adjustment seat 804 drives the leg guard shell 1 on the first fixed connecting plate 806 to slide to a suitable position. By twisting the fixing bolt 805, the fixing bolt 805 contacts the leg guard shell 1 to achieve fixation. This solves the problem that the multi-directional adjustable ankle and foot orthosis cannot be adjusted according to the user's ankle and foot length, which affects gait and motor function, limits its application effect in different pathological states, and affects the correction effect on ankle and foot deformities.

Claims

1. A multi-directional adjustable ankle-foot orthosis, comprising a leg guard shell (1), characterized in that: It also includes an adjustment connector (801) and a fixing component. The bottom of the leg cover (1) is provided with a foot cover (2) to support the user's feet. The foot cover (2) is provided with a foot pad (3) to support the user's foot sole. The inside of the leg cover (1) is provided with sweat-absorbing cotton (4) to absorb sweat. The leg cover (1) is provided with ventilation holes (5) to allow the legs and feet to breathe and dissipate heat. The adjustment connector (801) is provided on the leg cover (1). The inside of the adjustment connector (801) is slidably connected to a sliding adjustment seat (804). The inside of the adjustment connector (801) is fixedly connected to a first limiting rod (802) and a second limiting rod (803) to limit the sliding adjustment seat (804). The inside of the sliding adjustment seat (804) is threadedly connected to a fixing bolt (805). The sliding adjustment seat (804) is fixedly connected to a first fixing connecting plate (806).

2. The multi-directional adjustable ankle-foot orthosis according to claim 1, characterized in that: The sliding adjustment seat (804) has through holes at corresponding positions of the first limiting rod (802) and the second limiting rod (803), and slides on the first limiting rod (802) and the second limiting rod (803).

3. The multi-directional adjustable ankle-foot orthosis according to claim 1, characterized in that: There are two first fixed connecting plates (806), and the two first fixed connecting plates (806) are symmetrically fixedly connected to the sliding adjustment seat (804).

4. The multi-directional adjustable ankle-foot orthosis according to claim 1, characterized in that: A second fixed connecting block (807) is fixedly connected to the foot cover (2), and a fixed threaded column (808) is fixedly connected to the second fixed connecting block (807). The fixed threaded column (808) is rotatably connected to the inside of the first fixed connecting plate (806), and a fixed nut (809) is threadedly connected to the fixed threaded column (808).

5. The multi-directional adjustable ankle-foot orthosis according to claim 4, characterized in that: The first fixed connecting plate (806) has a through hole at the corresponding position of the fixed threaded post (808), and the fixed threaded post (808) rotates inside the through hole.

6. The multi-directional adjustable ankle-foot orthosis according to claim 1, characterized in that: The fixing component includes a mounting connecting shell (901), an internally movable fixing strap (902) for fixing the user's lower leg, the fixing strap (902) being fixedly connected to the leg guard shell (1), a limiting fixing plate (903) for limiting the fixing strap (902) being provided on the mounting connecting shell (901), and a sliding limiting post (904) being slidably connected inside the mounting connecting shell (901), the sliding limiting post (904) being provided with... A fixed limiting post (905) limits the fixed strap (902), and a return spring (906) is fixedly connected between the fixed limiting post (905) and the mounting connection shell (901). A limiting ring (907) is provided on the sliding limiting post (904) to limit the sliding of the sliding limiting post (904). A fixed limiting rod (908) is fixedly connected on the fixed limiting post (905), and the fixed limiting rod (908) is slidably connected inside the mounting connection shell (901).

7. The multi-directional adjustable ankle-foot orthosis according to claim 6, characterized in that: The fixing strap (902) is provided with teeth, the fixing limit post (905) is provided with teeth, and the teeth on the fixing strap (902) and the teeth on the fixing limit post (905) are engaged with each other.

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