Ankle joint rehabilitation training device

Abstract

This utility model relates to the field of ankle joint training technology and discloses an ankle joint rehabilitation training device, including a support structure, a mounting structure, a control button, a lower leg fixation component, a foot fixation component, and a drive component. The rear end of the mounting structure is slidably mounted on the support structure, and the horizontal position of the mounting structure on the support structure is adjustable. The lower leg fixation component is vertically fixed to the upper front end of the mounting structure for fixing the patient's lower leg. The foot fixation component is rotatably mounted on the lower front end of the mounting structure for fixing the patient's foot. The drive component is located beside the foot fixation component for driving the foot fixation component to rotate. The control button is connected to the drive component via a wire for controlling the operation of the drive component. This utility model can precisely control the flexion exercise angle according to each patient's ankle joint rehabilitation exercise needs, has strong applicability, and is convenient and easy to use.

Description

Technical Field

[0001] This utility model relates to the field of ankle joint training technology, and in particular to an ankle joint rehabilitation training device. Background Technology

[0002] The ankle joint, located between the lower leg and foot, is a vital weight-bearing joint in the human body. It is primarily formed by the articular surfaces of the lower ends of the tibia and fibula and the trochlea of ​​the talus. It supports the body's weight and allows for complex movements such as rotation and flexion. Due to its high usage frequency, the ankle joint is prone to inversion and eversion ligament injuries during movement due to indirect or direct trauma. In severe cases, this can even lead to ligament attachment point avulsion fractures, articular cartilage damage, or ankle fractures. After ankle injuries or surgery, rehabilitation exercises under the guidance of a doctor are usually necessary to improve treatment and rehabilitation outcomes and accelerate functional recovery.

[0003] There are also some ankle joint rehabilitation training devices in the existing technology, such as the invention patent application with application number CN202411303685.7 entitled "Ankle Joint Rehabilitation Training Device". It can lift the heel through the movable seat to assist the patient in lifting the heel, and can drive four sets of cylinders in steps to make the heel and forefoot move, thus accelerating the patient's foot rehabilitation; however, it controls the bending of the foot in a reciprocating motion and cannot accurately adjust the bending angle of the joint according to the needs of each patient.

[0004] For example, Chinese utility model patent application number CN202323524800.7, entitled "An Ankle Joint Traction Training Device," can simultaneously satisfy ankle dorsiflexion, plantarflexion, inversion, and eversion activities through a specific device, and comprehensively analyze the traction force. However, it can only rely on the patient's own ankle joint movement to achieve the exercise, which is not user-friendly for patients with severe ankle joint damage. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an ankle joint rehabilitation training device that can precisely control the flexion exercise angle according to the ankle joint rehabilitation exercise needs of each patient. It is highly applicable, convenient to use, and easy to operate.

[0006] This utility model is achieved using the following technical solution: an ankle joint rehabilitation training device, comprising a support structure, an installation structure, a control button, a lower leg fixation component, a foot fixation component, and a drive component. The rear end of the installation structure is slidably mounted on the support structure, and the horizontal position of the installation structure on the support structure is adjustable. The lower leg fixation component is vertically fixed to the upper front end of the installation structure for fixing the patient's lower leg. The foot fixation component is rotatably mounted on the lower front end of the installation structure for fixing the patient's foot. The drive component is located beside the foot fixation component for driving the foot fixation component to rotate. The control button is connected to the drive component via a wire for controlling the operation of the drive component.

[0007] Furthermore, the support structure includes a support frame, rod seats, and sliding rods. The rod seats are symmetrically fixed on both sides of the front end of the support frame, and the two ends of several sliding rods are fixed in the rod seats on both sides. There are multiple sliding rods, which are arranged horizontally relative to each other.

[0008] Furthermore, the installation structure includes a bottom crossbar, a main support rod, a top crossbar, a through-hole seat, a fastening slide, a connecting frame, a fastening wrench, a connecting rod, and a hinge seat. The main support rod is vertically fixed to the upper center of the bottom crossbar, and the top crossbar is horizontally fixed to the top of the main support rod. Multiple through-hole seats are fixed to the rear end of the main support rod. The fastening slide is fixed to the rear end of the bottom crossbar. The front end of the fastening wrench is threadedly installed on the outside of the fastening slide. The slide rod is slidably installed in the through-hole seat and the fastening slide. The tightness of the slide rod in the fastening slide is adjusted by the fastening wrench. The connecting frame is fixed to the outside of the bottom crossbar. The connecting frame is a U-shaped frame with its front ends extending to the front of the bottom crossbar on both sides. The connecting rod is fixed to the front end of the connecting frame, and the hinge seat is fixed to the front end of the connecting rod.

[0009] Furthermore, the lower leg fixing component includes a lower leg support ring and a lower leg strap. The lower leg support ring has several symmetrical lower leg support ring through grooves on both sides. The two ends of the lower leg strap pass through the lower leg support ring through grooves and are then bonded together.

[0010] Furthermore, the foot fixing assembly includes a foot baffle, a foot support base, and a foot strap. Two foot baffles are symmetrically fixed on both sides of the foot support base. The foot baffles are provided with several foot through grooves. The two ends of the foot strap pass through the foot through grooves and are then bonded together.

[0011] Furthermore, the drive assembly includes a housing, a frame, a geared motor, and a connecting plate. The frame is fixed to the front end of the connecting rod, the geared motor is fixed to the frame, and the drive end of the geared motor is connected and fixed to the foot baffle through the connecting plate to drive the foot baffle to rotate. The housing is fixed to the outer side of the frame at the outer end of the geared motor.

[0012] Furthermore, the foot baffle is provided with an angle scale on its outer side, and an angle indicator is provided on the hinge seat located on the opposite side of the drive assembly.

[0013] Furthermore, the foot support base is provided with enclosures on the left, right, and rear sides of its outer ring.

[0014] Furthermore, the calf straps and foot straps are both elastic bands with adhesive hooks and rough edges at both ends.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model relates to an ankle joint rehabilitation training device that can precisely control the flexion exercise angle according to each patient's ankle joint rehabilitation exercise needs. The angle of each flexion can be clearly indicated by the angle indicator, which is convenient for the operator to observe and understand. It is simple to operate and easy to use.

[0017] 2. The present invention provides an ankle joint rehabilitation training device that can adjust the position of the installation structure on the support structure according to the patient's body shape to meet the ankle joint rehabilitation training needs of patients with different body characteristics; multiple ankle joint rehabilitation training devices can also be set on the same support structure to provide rehabilitation training for the ankle joints of one patient's two feet or multiple patients, making it more versatile. Attached Figure Description

[0018] Figure 1 This is a left view of the ankle joint rehabilitation training device of this utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0020] Figure 3 This is the front view of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model after the support structure has been removed;

[0022] Figure 5 This is a schematic diagram of the structure of this utility model after removing the support structure and the shell.

[0023] In the diagram: Support structure-1, Mounting structure-2; Control button-3; Lower leg fixing assembly-4; Foot fixing assembly-5; Drive assembly-6; Support frame-11; Rod seat-12; Slide rod-13; Bottom crossbar-21; Main support rod-22; Top crossbar-23; Through hole seat-24; Fastening slide seat-25; Connecting bracket-26; Fastening wrench-27; Connecting rod-28; Hinge seat-29; Angle scale-291; Angle indicator-292; Wire-30; Lower leg support ring-41; Lower leg strap-42; Foot baffle-51; Foot support seat-52; Foot strap-53; Shell-60; Frame-61; Gear motor-62; Connecting plate-63. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0025] The purpose of this invention is to address the shortcomings of existing technologies by providing an ankle joint rehabilitation training device.

[0026] Example 1

[0027] This embodiment provides an ankle joint rehabilitation training device, referring to... Figures 1-2 As shown, the device includes a support structure 1, an installation structure 2, a control button 3, a calf fixation component 4, a foot fixation component 5, and a drive component 6. The rear end of the installation structure 2 is slidably mounted on the support structure 1, and the horizontal position of the installation structure 2 on the support structure 1 is adjustable. The calf fixation component 4 is vertically fixed to the upper front end of the installation structure 2 to fix the patient's calf. The foot fixation component 5 is rotatably mounted to the lower front end of the installation structure 2 to fix the patient's foot. The drive component 6 is located beside the foot fixation component 5 and is used to drive the foot fixation component 5 to rotate. The control button 3 is connected to the drive component 6 via a wire 30 and is used to control the operation of the drive component 6. The control button 3 contains a speed regulator for the geared motor 62, which can adjust the speed and switch of the geared motor 62.

[0028] Specifically, refer to Figure 1As shown, the support structure 1 includes a support frame 11, rod seats 12 and slide rods 13. Two sets of rod seats 12 are symmetrically fixed on both sides of the front end of the support frame 11. The two ends of each slide rod 13 are fixed in one set of rod seats 12 on both sides. In this embodiment, there are two slide rods 13, which are set horizontally to each other. When in use, the support frame 11 is fixed horizontally and vertically. The length of the support frame 11 is set according to the requirements.

[0029] Specifically, refer to Figures 4-5 As shown, the lower leg fixing component 4 includes a lower leg support ring 41 and a lower leg strap 42. The lower leg support ring 41 has several lower leg support ring through grooves symmetrically arranged on both sides. The two ends of the lower leg strap 42 pass through the lower leg support ring through grooves and are then bonded together.

[0030] Specifically, refer to Figures 4-5 As shown, the foot fixation component 5 includes a foot baffle 51, a foot support base 52, and a foot strap 53. Two foot baffles 51 are symmetrically fixed on both sides of the foot support base 52. Several foot grooves are provided on the foot baffles 51. The two ends of the foot strap 53 pass through the foot grooves and are then adhesively connected. In this embodiment, both the calf strap 42 and the foot strap 53 are elastic bands, which can better meet the needs of patients with different leg and foot thicknesses and sizes for foot fixation. Both ends are provided with adhesive hooks and rough edges for easy connection and disconnection. The foot support base 52 has guardrails on its outer left, right, and rear sides to better fix the patient's foot and prevent it from falling off.

[0031] Reference Figures 3-5 As shown, the drive assembly 6 includes a housing 60, a frame 61, a geared motor 62, and a connecting plate 63. The frame 61 is fixed to the front end of the connecting rod 28, and the geared motor 62 is fixed to the frame 61. The drive end of the geared motor 62 is connected and fixed to the foot baffle 51 through the connecting plate 63, and is used to drive the foot baffle 51 to rotate. The geared motor 62 uses a DC geared motor in the prior art. In this embodiment, the DC geared motor can be a Mingyang 545 type DC motor with a working voltage of 24V and a minimum speed of no more than 8 rpm. The geared motor 62 is equipped with a matching speed regulator. The housing 60 is fixed on the outer side of the frame 61 at the outer end of the geared motor 62.

[0032] Reference Figure 4 As shown, an angle scale 291 is provided on the outer side of the foot baffle 51, and an angle indicator 292 is provided on the hinge seat 29 located on the opposite side of the drive assembly 6 to indicate the rotation angle of the foot fixing assembly 5.

[0033] This utility model discloses an ankle joint rehabilitation training device. In use, the patient's foot is placed in the foot support seat 52, with the lower leg close to the lower leg support ring 41. The lower leg is fixed by the lower leg strap 42, and the foot is fixed by the foot strap 53. Both the lower leg strap 42 and the foot strap 53 are elastic bands, which can meet the needs of patients with different leg and foot thicknesses and sizes. Both ends are provided with adhesive hooks and rough surfaces for easy connection and opening. The foot support seat 52 has guardrails on the left, right and rear sides of the outer ring to better fix the patient's foot and prevent it from falling off.

[0034] During training, the doctor or patient can adjust the operation of the reduction motor 62 by controlling button 3. The reduction motor 62 drives the foot baffle 51 to rotate, and the patient's ankle joint can be rehabilitated by bending. The bending angle can be precisely controlled according to each patient's ankle joint rehabilitation exercise needs. The angle of each bend can be clearly indicated by the angle indicator 292, which is convenient for the operator to observe and understand. It is simple to operate and easy to use.

[0035] Example 2

[0036] Based on the structure in Embodiment 1, referring to... Figure 4 As shown, the installation structure 2 includes a bottom crossbar 21, a main support rod 22, a top crossbar 23, a through-hole seat 24, a fastening slide 25, a connecting bracket 26, a fastening wrench 27, a connecting rod 28, and a hinge seat 29. The main support rod 22 is vertically fixed to the upper center of the bottom crossbar 21, and the top crossbar 23 is horizontally fixed to the top of the main support rod 22. Two through-hole seats 24 are fixed to the rear end of the main support rod 22. The fastening slide 25 is fixed to the rear end of the bottom crossbar 21 and is horizontal with one of the through-hole seats 24. The front end of the fastening wrench 27 is threaded onto the outside of the fastening slide 25. The slide rod 13 is slidably mounted on the through-hole seat 24 and the fastening slide 29. In step 5, the tightness of the slide rod 13 in the fastening slide seat 25 is adjusted by tightening the wrench 27, thereby adjusting the horizontal position of the mounting structure 2 on the support structure 1. This allows the position of the mounting structure 2 on the support structure 1 to be adjusted according to the patient's body shape after the support structure 1 is vertically fixed, meeting the needs of ankle joint rehabilitation training for patients with different body characteristics. Furthermore, in this embodiment, multiple ankle joint rehabilitation training devices can be set on the same support structure 1. By adjusting the position of the mounting structure 2 on the support structure 1, rehabilitation training can be performed on the ankle joints of one patient or multiple patients, making the ankle joint rehabilitation training device of this utility model more applicable. The connecting frame 26 is fixed to the outside of the bottom crossbar 21. The connecting frame 26 is a U-shaped frame with its front ends extending to the front of the bottom crossbar 21 on both sides. The connecting rod 28 is fixed to the front end of the connecting frame 26, and the hinge seat 29 is fixed to the front end of the connecting rod 28.

[0037] Attachment: Report on the Effectiveness of Ankle Bending Rehabilitation Training Device —

[0038] Experimental comparative data analysis

[0039] Experimental Design

[0040] Subjects: Sixty patients with ankle injuries were randomly divided into an experimental group (using rehabilitation training devices) and a control group (using traditional rehabilitation treatment), with 30 patients in each group. During the grouping process, factors such as patients' age, type of injury, and severity of injury were fully considered to ensure comparability between the two groups in all aspects.

[0041] Experiment duration: 6 weeks. During this period, the two groups of patients were treated and trained in strict accordance with the established rehabilitation plan, and various assessment indicators were measured and recorded regularly.

[0042] Evaluation indicators:

[0043] Ankle range of motion (ROM): The angles of dorsiflexion and plantarflexion of the ankle are accurately measured using a professional joint angle measuring instrument to assess the range of motion of the joint.

[0044] Pain Scale (VAS): The Visual Analogue Scale (VAS) is used to allow patients to rate their pain on a scale of 0-10, with 0 indicating no pain and 10 indicating severe pain, thus quantifying the degree of pain.

[0045] Muscle strength recovery status: Using professional muscle strength testing equipment, the strength of the patient's ankle-related muscles is measured and the recovery status is expressed as a percentage.

[0046] Functional score (AOFAS ankle-hindfoot score): Based on the AOFAS scoring system, the patient's ankle joint function is comprehensively assessed from multiple dimensions such as pain, function, alignment, etc. The full score is 100 points, and the higher the score, the better the functional recovery.

[0047] Experimental comparison data

[0048]

[0049] Data Analysis

[0050] Ankle joint range of motion: The experimental group showed significantly greater improvement in dorsiflexion and plantarflexion angles than the control group. Statistical analysis confirmed the significant difference between the two groups (P<0.05), demonstrating that the rehabilitation training device can more effectively improve ankle joint flexibility and expand the range of motion.

[0051] Pain relief: The VAS score in the experimental group decreased more significantly after surgery. By comparing the trends in the scores of the two groups, it can be clearly seen that the rehabilitation training device has a more significant effect on relieving patients' pain and can greatly improve patients' comfort.

[0052] Muscle strength recovery: The muscle strength recovery rate of the experimental group was 15% higher than that of the control group. Detailed data analysis showed that the experimental group's muscle strength growth rate was faster than that of the control group at all stages, which strongly proves that the rehabilitation training device has a significant promoting effect on muscle strength recovery.

[0053] Functional scores: The experimental group showed a greater improvement in AOFAS scores. In-depth analysis of various dimensions of the scores revealed that the experimental group outperformed the control group in pain relief, functional improvement, and alignment recovery. This fully demonstrates that rehabilitation training devices are significantly superior to traditional treatment methods in promoting overall ankle joint functional recovery.

[0054] in conclusion

[0055] Based on the data from this experiment, the ankle flexion rehabilitation trainer demonstrated significant advantages in improving joint range of motion, relieving pain, enhancing muscle strength, and promoting functional recovery, showing more pronounced effects compared to traditional rehabilitation methods. Therefore, this rehabilitation trainer is suitable as the preferred tool for ankle rehabilitation, providing more effective support and assurance for the rehabilitation of patients with ankle injuries.

Claims

1. An ankle joint rehabilitation training device, characterized in that: The device includes a support structure (1), an installation structure (2), a control button (3), a calf fixation component (4), a foot fixation component (5), and a drive component (6). The rear end of the installation structure (2) is slidably mounted on the support structure (1), and the horizontal position of the installation structure (2) on the support structure (1) is adjustable. The calf fixation component (4) is vertically fixed to the upper front end of the installation structure (2) to fix the patient's calf. The foot fixation component (5) is rotatably mounted to the lower front end of the installation structure (2) to fix the patient's foot. The drive component (6) is located beside the foot fixation component (5) to drive the foot fixation component (5) to rotate. The control button (3) is connected to the drive component (6) via a wire (30) to control the operation of the drive component (6).

2. The ankle joint rehabilitation training device according to claim 1, characterized in that: The support structure (1) includes a support frame (11), a rod seat (12) and a slide rod (13). The rod seat (12) is symmetrically fixed on both sides of the front end of the support frame (11). Several slide rods (13) are fixed at both ends in the rod seats (12) on both sides. There are multiple slide rods (13) arranged horizontally to each other.

3. The ankle joint rehabilitation training device according to claim 2, characterized in that: The installation structure (2) includes a bottom crossbar (21), a main support rod (22), a top crossbar (23), a through-hole seat (24), a fastening slide (25), a connecting frame (26), a fastening wrench (27), a connecting rod (28), and a hinge seat (29). The main support rod (22) is vertically fixed to the upper center of the bottom crossbar (21), and the top crossbar (23) is horizontally fixed to the top of the main support rod (22). Multiple through-hole seats (24) are fixed to the rear end of the main support rod (22), and the fastening slide (25) is fixed to the rear end of the bottom crossbar (21). The front end of the tightening wrench (27) is threadedly installed on the outside of the tightening slide (25). The slide rod (13) is slidably installed in the through hole seat (24) and the tightening slide (25). The tightness of the slide rod (13) in the tightening slide (25) is adjusted by the tightening wrench (27). The connecting frame (26) is fixed on the outside of the bottom crossbar (21). The connecting frame (26) is a U-shaped frame with its front ends extending to the front of the bottom crossbar (21). The connecting rod (28) is fixed on the front end of the connecting frame (26). The hinge seat (29) is fixed on the front end of the connecting rod (28).

4. The ankle joint rehabilitation training device according to claim 3, characterized in that: The lower leg fixing component (4) includes a lower leg support ring (41) and a lower leg strap (42). The lower leg support ring (41) has several lower leg support ring through grooves symmetrically arranged on both sides. The two ends of the lower leg strap (42) pass through the lower leg support ring through grooves and are then bonded together.

5. The ankle joint rehabilitation training device according to claim 4, characterized in that: The foot fixing component (5) includes a foot baffle (51), a foot support base (52), and a foot strap (53). Two foot baffles (51) are symmetrically fixed on both sides of the foot support base (52). The foot baffles (51) are provided with several foot through grooves. The two ends of the foot strap (53) pass through the foot through grooves and are then bonded together.

6. The ankle joint rehabilitation training device according to claim 5, characterized in that: The drive assembly (6) includes a housing (60), a frame (61), a geared motor (62), and a connecting plate (63). The frame (61) is fixed to the front end of the connecting rod (28). The geared motor (62) is fixed on the frame (61). The drive end of the geared motor (62) is connected and fixed to the foot baffle (51) through the connecting plate (63) to drive the foot baffle (51) to rotate. The housing (60) is fixed on the outer side of the frame (61) at the outer end of the geared motor (62).

7. The ankle joint rehabilitation training device according to claim 5 or 6, characterized in that: An angle scale (291) is provided on the outer side of the foot baffle (51), and an angle indicator (292) is provided on the hinge seat (29) located on the opposite side of the drive assembly (6).

8. The ankle joint rehabilitation training device according to claim 5, characterized in that: The foot support base (52) is provided with enclosures on the left, right and rear sides of the outer ring.

9. The ankle joint rehabilitation training device according to claim 5, characterized in that: The calf strap (42) and foot strap (53) are both elastic straps with adhesive hooks and rough edges at both ends.

Images