Intelligent dual-mode ankle foot correction device

Abstract

The invention provides an intelligent dual-mode ankle-foot correction device, and relates to the technical field of ankle joint orthosis, the intelligent dual-mode ankle-foot correction device comprises a foot sole supporting pedal, a first fixing belt is mounted on the foot sole supporting pedal, shank supporting plates are hinged to the two sides of the upper portion of the foot sole supporting pedal, and shank fixing assemblies are mounted on the shank supporting plates on the two sides; a correction force application rod is arranged above the foot sole supporting pedal, the two ends of the correction force application rod are hinged to the shank supporting plates on the two sides through angle adjusting assemblies, a drafting adjusting assembly is installed on the correction force application rod, and two sets of adjustable correction screw rods which are symmetrically arranged are hinged to the drafting adjusting assembly; one ends of the two groups of adjustable correcting screw rods are connected with the sole supporting pedal through hinging pieces; the patient can adjust according to feedback of self-correction force, self-management and self-rehabilitation are achieved, and therefore the rehabilitation effect and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ankle orthopedics, and particularly to an intelligent dual-mode ankle-foot correction device. Background Art

[0002] Ankle joint dysfunction is relatively common in daily life. Diseases such as stroke, traumatic brain injury, cerebral palsy, spinal cord injury, and joint surgery can all lead to various types of ankle joint dysfunction, affecting the patient's walking, movement ability, and quality of life. The existing intelligent orthosis with a continuous long-term stretching mode may cause muscle and tendon injuries, while traditional continuous stretching treatment may require therapists to perform manual stretching and other operations for a long time, consuming a large amount of human and time costs. In addition, stroke hemiplegia patients passively receive treatment, lacking an active participation mechanism, unable to warn of injury risks, and unable to synchronously train upper limb muscle strength and cardiopulmonary function. Although wearable ankle correction products have a certain degree of portability, they cannot rely on the patient's self-perception to real-time correct the stretching angle and strength of the ankle joint, making it difficult to achieve personalized correction, and thus resulting in poor treatment effects for the ankle joint. Therefore, the present invention proposes an intelligent dual-mode ankle-foot correction device to solve the problems existing in the prior art. Summary of the Invention

[0003] In view of the above problems, the purpose of the present invention is to propose an intelligent dual-mode ankle-foot correction device. This intelligent dual-mode ankle-foot correction device can not only provide support for patients with musculoskeletal joint dysfunction, but also help enhance the upper limb strength and improve the cardiopulmonary function of post-stroke patients, and can solve the problems existing in the prior art.

[0004] To achieve the purpose of the present invention, the present invention is realized through the following technical solutions: An intelligent dual-mode ankle-foot correction device includes a sole support pedal. Two groups of first fixing belts are installed on the sole support pedal. On both sides above the sole support pedal, calf support plates are hinged, and calf fixing components are installed on the two calf support plates on both sides. Above the sole support pedal, there is a correction force application rod, and the cross-section of the correction force application rod is in an inverted U shape. Both ends of the correction force application rod are hinged to the calf support plates on both sides through angle adjustment components. A stretching adjustment component is installed on the correction force application rod, and two symmetrically arranged adjustable correction screws are hinged to the stretching adjustment component. One end of each of the two adjustable correction screws is connected to the sole support pedal through a hinge. Angle sensors are arranged inside the angle adjustment components, and force sensors are arranged at the connection between the adjustable correction screws and the hinge.

[0005] Further improvements are: the stretching adjustment assembly includes an adjustment frame, the shape of the adjustment frame is adapted to the correction force rod, the correction force rod is provided with two groups of symmetrically arranged slots, the two ends of the adjustment frame are respectively inserted into the slots at corresponding positions, a marble buckle is installed on the adjustment frame, and the marble buckle is provided with several groups, the outer side of the correction force rod is provided with a marble slot, and the marble slot is provided with several groups from top to bottom, and the marble slot is adapted to the marble buckle.

[0006] Further improvements are: the adjustable correction screw includes an outer sleeve and an inner screw, the inner side of the outer sleeve is provided with an internal thread, and is rotatably connected to the inner screw through the thread, and the end of the outer sleeve away from the inner screw is installed with a connecting piece through a bearing, and the connecting piece is connected to the adjustment assembly through a hinge.

[0007] Further improvements are: the angle adjustment assembly includes a connecting block, one end of the connecting block is installed with a circular protrusion, the circular protrusion passes through the calf support plate, and is connected to the calf support plate through a bearing, a limit block is installed on the circular protrusion by a bolt, the calf support plate is provided with a limit groove, and the limit grooves are evenly arranged in several groups, and the several groups of limit grooves are distributed in a ring shape, and two groups of symmetrically arranged plug blocks are installed on the limit block, and the position and size of the plug blocks correspond to the limit grooves.

[0008] Further improvements are: the calf fixing assembly includes two groups of symmetrically arranged sliders, the cross-section of the sliders is I-shaped, and a through opening is provided on the sliders, a second fixing belt is installed on the two groups of the sliders, a first limit opening is provided on the calf support plate, the slider is located in the first limit opening, and is slidably connected to the slider.

[0009] A further improvement is that the first fixing strap and the second fixing strap are both adjustable straps and are provided with strap buckles.

[0010] A further improvement is that a second limiting opening is provided on the correction force rod, and the second limiting opening can accommodate the movement of the hinged member on the connecting member.

[0011] A further improvement is that two groups of symmetrically arranged limiting rings are installed on the adjustment frame.

[0012] The beneficial effects of the present invention are:

[0013] The present invention achieves therapeutic effects through multiple cycles and multiple frequencies by combining the "self-perception-self-determination-dynamic execution" technology, and can obtain maximum correction in the shortest possible time. At the same time, patients can make adjustments based on the feedback of their self-correction ability, achieve self-management and self-rehabilitation, and thus improve rehabilitation effects and efficiency. The active-assisted dual-mode training mechanism is then combined with tactile feedback to reduce the risk of muscle tears and increase patient participation, while also saving human resources and meeting the needs of patients for home rehabilitation. At the same time, patients can also view their own exercise data and progress through smart devices such as mobile phones. Patients can use it on their own under the guidance of a doctor to conduct regular and periodic stretching training, reducing their dependence on therapists. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the present invention.

[0015] Figure 2 It is a front view structural diagram of the connection between the adjustment frame and the correction force rod of the present invention.

[0016] Figure 3 It is a front view schematic diagram of the connection between the adjustment frame and the correction force rod of the present invention.

[0017] Figure 4 It is a side view schematic diagram of the connection between the adjustment frame and the correction force rod of the present invention.

[0018] Figure 5 It is a schematic diagram of the top view of the slider of the present invention.

[0019] Figure 6 It is a front view structural schematic diagram of the foot support pedal of the present invention.

[0020] Figure 7 It is a front view structural diagram of the connection between the circular protrusion and the limiting block of the present invention.

[0021] Figure 8 It is a side view of the first fixing strap of the present invention after being closed.

[0022] Figure 9 It is a partial enlarged schematic diagram of point A of the present invention.

[0023] Among them: 1. Foot support pedal; 2. First fixing belt; 3. Calf support plate; 4. Correction force rod; 5. Adjustable correction screw; 6. Adjustment frame; 7. Slot; 8. Marble buckle; 9. Marble snap port; 10. Outer sleeve; 11. Inner screw; 12. Connector; 13. Connecting block; 14. Round protrusion; 15. Limit block; 16. Limit groove; 17. Insert block; 18. Slider; 19. Through port; 20. Second fixing belt; 21. First limit port; 22. Second limit port; 23. Limit ring; 24. Stop block. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0025] The ankle joint, a key joint in the lower limbs, is crucial for daily walking and movement. However, ankle dysfunction is common in many diseases, especially in patients with stroke, brain trauma, cerebral palsy, spinal cord injury, and those following joint surgery. These patients often experience ankle movement disorders, leading to decreased walking and movement abilities, and even affecting their quality of life. Because these diseases often cause hemiplegia, weakness, or movement disorders, patients may require lengthy rehabilitation treatment. However, existing treatments often fail to meet the individual needs of patients and are often ineffective.

[0026] Currently, many treatments for ankle dysfunction use a continuous stretching mode, especially in patients with stroke, brain trauma, spinal cord injury, etc. However, this treatment method has certain disadvantages, especially when the stretching time is too long, it may cause muscle and tendon damage. During the stretching process, if the force is inappropriate or the duration is too long, it is easy to cause excessive stretching of muscles and soft tissues, which may further cause muscle tears, joint deformities and other problems. In addition, long-term stretching therapy usually requires manual operation by the therapist, which not only consumes a lot of time and manpower, but may also affect the effectiveness of the treatment.

[0027] In many rehabilitation programs, patients typically passively accept treatment, especially in situations like stroke and traumatic brain injury. This often prevents them from actively participating in the treatment process. This not only impacts recovery efficiency but can also lead to a lack of confidence and engagement in the process. Traditional treatments often lack adequate mechanisms for active participation, preventing patients from adjusting the intensity and angle of stretching based on their own perceptions, leading to suboptimal treatment outcomes.

[0028] Meanwhile, existing wearable ankle orthosis products, while relatively portable, often fail to accurately adjust the ankle extension angle and force based on the patient's self-perception. These products typically have limited functionality and lack the ability to adapt to changes in the patient's condition during treatment. Furthermore, treatment outcomes are often not personalized, and they lack the ability to fine-tune them based on the patient's specific needs. This results in poor treatment outcomes and slows recovery.

[0029] according to Figures 1-9As shown, this embodiment proposes an intelligent dual-mode ankle-foot correction device, including a sole support pedal 1. The sole support pedal 1 conforms to ergonomic principles and can naturally fit the sole of the patient's foot, providing sufficient support and comfort. A first fixing strap 2 is installed on the sole support pedal 1, and two groups of the first fixing strap 2 are provided. The first fixing strap 2 and the second fixing strap 20 are both adjustable straps and are equipped with strap buckles (watch strap buckle design). Users can adjust the tightness of the straps according to their needs. In this embodiment, the two groups of first fixing straps 2 are used to fix the user's toe joints and ankle joints respectively, ensuring that the device can firmly fix the patient's feet during use to avoid slipping or instability.

[0030] Both sides of the foot support pedal 1 are hinged with calf support plates 3, and the calf support plates 3 on both sides are installed with calf fixing components, wherein the calf fixing components include two sets of symmetrically arranged sliders 18, the cross section of the sliders 18 is designed in an I-shaped design, and the sliders 18 are provided with a through hole 19, which is used to pass the second fixing belt 20. That is, the second fixing belt 20 is installed on the two sets of sliders 18, and the calf support plate 3 is provided with a first limiting opening 21. The sliders 18 are located in the first limiting opening 21 and are slidably connected to the sliders 18. Figure 1 and Figure 5 As shown, the slider 18 can only slide along the first limit opening 21 on the calf support plate 3, so that the position of the second fixing belt 20 can be adjusted by the user. Then, when in use, by sliding the slider, the user can make the second fixing belt 20 fit the position of the calf more closely and provide appropriate support force to ensure the stability and comfort of the device.

[0031] A correction force rod 4 is provided above the foot support pedal 1, and the cross section of the correction force rod 4 is in the shape of an inverted Chinese character. Both ends of the correction force rod 4 are hinged to the calf support plates 3 on both sides through an angle adjustment assembly. The angle between the correction force rod 4 and the calf support plate 3 can be adjusted by the angle adjustment assembly. Specifically, the angle adjustment assembly includes a connecting block 13, one end of which is provided with a circular protrusion 14, which passes through the calf support plate 3 and is connected to the calf support plate 3 through a bearing, a limit block 15 is installed on the circular protrusion 14 by a bolt, and a limit groove 16 is provided on the calf support plate 3, and the limit groove 16 is evenly provided in several groups, and two groups of symmetrically arranged plug blocks 17 are installed on the limit block 15, and the position and size of the plug blocks 17 correspond to the limit groove 16. In this embodiment, several groups of limiting grooves 16 are arranged in a ring shape, with their centers coinciding with the centers of the circular protrusions 14. Therefore, during operation, a person first loosens the limiting block 15 on the circular protrusion 14 with a tool, then pulls out the limiting block 15 until the insert 17 is free of the limiting groove 16. At this point, the correction force rod 4 and the calf support plate 3 can rotate under the action of the bearing, thus forming a hinged connection. After adjusting to the appropriate angle, the limiting block 15 is pressed in, so that the insert 17 enters the corresponding insert 17, and then the bolts are tightened to achieve a fixed effect. Furthermore, two groups of stoppers 24 are mounted on the circular protrusion 14 to limit the position of the limiting block 15. These stoppers 24 are located on both sides of the limiting block 15 and contact the limiting block 15.

[0032] The correction force rod 4 is mounted with a draft adjustment assembly, which includes an adjustment frame 6. The adjustment frame 6 is shaped to match the correction force rod 4 and is provided with two symmetrically arranged slots 7. The ends of the adjustment frame 6 are inserted into the corresponding slots 7, allowing the adjustment frame 6 to move along the slots 7. Furthermore, the adjustment frame 6 is mounted with a plurality of pins 8. In this embodiment, there are four pins 8 arranged horizontally. The outer side of the correction force rod 4 is provided with a plurality of pins 9. The pins 9 are arranged in a sequence from top to bottom. The pins 9 mate with the pins 8. The pins 8 lock the adjustment frame in place, preventing accidental movement during adjustment. They also provide an adjustable function. As the adjustment frame 6 slides along the slots 7, the pins 8 mate with the pins 9, thereby precisely locking the adjustment frame 6 in place. This design allows for precise control at each adjustment point, ensuring accurate adjustment of angle and force. Thus, with the cooperation of the ball-shaped slot 9 and the ball-shaped buckle 8, the position of the adjustment frame 6 can be adjusted, thereby cooperating with the angle adjustment assembly to adjust the subsequent draft force and angle.

[0033] Furthermore, two sets of symmetrically arranged limiting rings 23 are installed on the adjustment frame 6. When the adjustment frame 6 is at the lowest position, the limiting rings 23 are in contact with the correction force rod 4, which plays a limiting effect.

[0034] Two groups of symmetrically arranged adjustable correction screws 5 are hinged on the stretch adjustment assembly. One end of the two groups of adjustable correction screws 5 is connected to the foot support pedal 1 through a hinge. The adjustable correction screw 5 includes an outer sleeve 10 and an inner screw 11. The inner side of the outer sleeve 10 is provided with an inner thread, and is rotatably connected to the inner screw 11 through the thread to form a rotary adjustment structure. By rotating the outer sleeve 10, the inner screw 11 moves back and forth in the outer sleeve 10 along the thread direction, thereby adjusting the overall length of the adjustable correction screw 5. This adjustment directly affects the stretching force applied to the ankle joint. A connector 12 is installed on the end of the outer sleeve 10 away from the inner screw 11 through a bearing, and the connector 12 is connected to the adjustment assembly through a hinge. Figure 2 and Figure 4 As shown, the correction force rod 4 is provided with a second limit opening 22. This second limit opening 22 accommodates the movement of the hinged member on the connecting member 12. Therefore, the second limit opening 22 effectively limits the range of motion of the connecting member, preventing the hinged member from shifting or causing unnecessary offset, thereby ensuring stability and accuracy during the force application process. With the cooperation of the outer sleeve 10 and the inner screw 11, the overall length of the adjustable correction screw 5 can be adjusted.

[0035] Furthermore, an angle sensor is provided in the angle adjustment component, and a force sensor is provided at the connection between the adjustable correction screw 5 and the hinge. In this embodiment, both the angle sensor and the force sensor can display the stretching force, angle, time and other parameters in real time on a mobile phone or tablet through wireless communication technologies such as Bluetooth, and feedback to the patient or medical staff so that the stretching plan can be adjusted in time. Specifically, the angle sensor is provided in the angle adjustment component, which monitors and feeds back the angle change between the correction force rod 4 and the calf support plate 3 in real time. When the patient or medical staff adjusts the correction force rod, the angle sensor will accurately record the angle change; and the force sensor is provided at the connection between the adjustable correction screw 5 and the hinge to monitor the stretching force applied to the ankle joint. As the screw is adjusted, the applied stretching force will change, and the force sensor can sense this change and feed back the pressure data in real time.

[0036] This device has two modes: active correction and assisted correction. In assisted correction mode, the patient performs autonomous exercise training. The angle adjustment assembly is unlocked. The user manually pulls the adjustment frame 6, which rotates the correction force rod 4, which in turn rotates the foot support pedal 1 via the adjustable correction screw 5. In active correction mode, the angle adjustment assembly is locked, having been pre-autonomously extended to a specific angle and locked.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the framework and scope of application of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent dual-mode ankle-foot correction device, comprising a foot support pedal (1), characterized in that: A first fixing strap (2) is installed on the sole support pedal (1), and there are two sets of the first fixing straps (2). On both sides above the sole support pedal (1), calf support plates (3) are hinged, and a calf fixing component is installed on the calf support plates (3) on both sides. Above the sole support pedal (1), a correction force application rod (4) is provided, and the cross-section of the correction force application rod (4) is in an inverted U shape. Both ends of the correction force application rod (4) are hinged to the calf support plates (3) on both sides through angle adjustment components. A stretching adjustment component is installed on the correction force application rod (4), and two sets of symmetrically arranged adjustable correction screws (5) are hinged to the stretching adjustment component. One end of each of the two sets of adjustable correction screws (5) is connected to the sole support pedal (1) through a hinge. An angle sensor is arranged in the angle adjustment component, and a force sensor is arranged at the connection between the adjustable correction screw (5) and the hinge.

2. The intelligent dual-mode ankle-foot correction device according to claim 1, characterized in that: The stretching adjustment component includes an adjustment frame (6). The shape of the adjustment frame (6) is adapted to the correction force application rod (4). Two sets of symmetrically arranged slots (7) are provided on the correction force application rod (4). Both ends of the adjustment frame (6) are respectively inserted into the slots (7) at corresponding positions. A marble buckle (8) is installed on the adjustment frame (6), and there are several groups of the marble buckles (8). On the outer side of the correction force application rod (4), marble buckles (9) are provided, and several groups of marble buckles (9) are arranged in sequence from top to bottom. The marble buckles (9) are adapted to the marble buckles (8).

3. The intelligent dual-mode ankle-foot correction device according to claim 1, characterized in that: The adjustable correction screw (5) includes an outer sleeve (10) and an inner screw (11). The inner side of the outer sleeve (10) is provided with internal threads and is rotationally connected to the inner screw (11) through the threads. One end of the outer sleeve (10) far from the inner screw (11) is installed with a connecting piece (12) through a bearing, and the connecting piece (12) is connected to the adjustment component through a hinge.

4. The intelligent dual-mode ankle-foot correction device according to claim 1, characterized in that: The angle adjustment component includes a connecting block (13). One end of the connecting block (13) is installed with a circular convex block (14). The circular convex block (14) penetrates through the calf support plate (3) and is connected to the calf support plate (3) through a bearing. A limiting block (15) is installed on the circular convex block (14) through a bolt. A limiting groove (16) is provided on the calf support plate (3), and several groups of the limiting grooves (16) are evenly arranged. The several groups of limiting grooves (16) are annularly distributed. Two sets of symmetrically arranged insertion blocks (17) are installed on the limiting block (15). The positions and sizes of the insertion blocks (17) correspond to the limiting grooves (16).

5. The intelligent dual-mode ankle-foot correction device according to claim 1, characterized in that: The calf fixing component includes two sets of symmetrically arranged sliders (18). The cross-section of the slider (18) is designed in an I shape, and a through hole (19) is provided on the slider (18). A second fixing strap (20) is installed on the two sets of sliders (18). A first limiting port (21) is provided on the calf support plate (3). The slider (18) is located in the first limiting port (21) and is slidably connected to the slider (18).

6. The intelligent dual-mode ankle-foot correction device according to claim 5, characterized in that: The first fixing belt (2) and the second fixing belt (20) are both adjustable straps and are provided with strap buckles.

7. The intelligent dual-mode ankle-foot correction device according to claim 1, characterized in that: The correction force rod (4) is provided with a second limiting opening (22), and the second limiting opening (22) can accommodate the hinged part on the connecting part (12) to move.

8. The intelligent dual-mode ankle-foot correction device according to claim 3, characterized in that: Two groups of symmetrically arranged limiting rings (23) are installed on the adjustment frame (6).

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