Ankle joint injury rehabilitation device

Abstract

The invention provides an ankle joint injury rehabilitation device which comprises a thigh fixator, a protective plate connected with the thigh fixator through a first connecting frame, a knee fixator hinged to the end of the protective plate, a shank fixator connected with the knee fixator through a second connecting frame, and a bottom plate provided with a supporting frame. The end of the supporting frame is hinged to the shank fixator, a resistance assembly connected with the shank fixator is arranged on the bottom plate, resistance is applied to movement of the bottom plate on the shank fixator through the resistance assembly, and a locking mechanism is arranged at the hinged position of the supporting frame and the shank fixator. When the device is vertically placed, the position of the bottom plate on the shank fixator is locked through the locking mechanism, and when the device is horizontally placed, position locking of the bottom plate is relieved. The device can exercise ankles of a patient when placed horizontally and support the body of the patient when placed vertically, so that normal life of the patient is assisted.

Description

Technical Field

[0001] The present invention particularly relates to an ankle joint injury rehabilitation device. Background Art

[0002] Ankle sprains are common sports injuries in daily life, primarily manifested by ankle pain, swelling, bruising, and limited mobility. Proper rehabilitation training is crucial for restoring ankle function and preventing further injury. Rehabilitation training is not recommended in the early stages of ankle injury; the limb should be elevated and iced. Later in life, active activities, such as flexion and extension, and eversion and inversion, can be gradually increased to increase the range of motion and strengthen the ankle joint.

[0003] For example, Chinese invention patent publication number CN103041546B provides an active-passive ankle rehabilitation device that uses rectangular coordinates to achieve three degrees of freedom: dorsiflexion / plantar flexion, inversion / eversion, and internal / external rotation. During the rehabilitation process, the device controls the trainee's foot movement by detecting pedal force, enabling active and passive training. It also provides force safety protection to prevent secondary injury to the trainee.

[0004] However, most of the existing ankle injury rehabilitation devices only have the function of exercising the ankle muscles. Their functions are relatively simple and are not convenient for assisting patients in daily walking. In view of this, an ankle injury rehabilitation device is proposed to solve the above technical problems. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention proposes an ankle joint injury rehabilitation device to solve the technical problem that most of the existing ankle joint injury rehabilitation devices proposed in the above background technology only have the function of exercising the ankle joint muscles, their functions are relatively single, and they are not convenient for assisting patients in daily walking.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ankle injury rehabilitation device, comprising:

[0007] a thigh fixator provided with a guard plate connected via a first connecting frame;

[0008] a knee brace hinged to the end of the guard plate and provided with a calf brace connected via a second connecting frame;

[0009] A bottom plate is provided with a support frame, an end of the support frame is hinged to the calf fixator;

[0010] a resistance assembly disposed on the base plate and connected to the calf support to apply resistance to movement of the base plate on the calf support; and

[0011] A locking mechanism is provided at the hinge between the support frame and the calf fixator to lock the position of the base plate on the calf fixator when the device is placed vertically, and to unlock the position of the base plate when the device is placed horizontally.

[0012] In a preferred embodiment, the thigh fixator, the knee fixator and the calf fixator are all deformable arc-shaped plates, and their ends are fixedly connected by locks.

[0013] In a preferred embodiment, protective pads made of flexible material are provided on the inner sides of the thigh fixator, the knee fixator and the calf fixator.

[0014] In a preferred embodiment, two groups of the second connecting frames are provided, and both groups of the second connecting frames are arc-shaped, and an angle exists between the planes where the two groups of the second connecting frames are located.

[0015] In a preferred embodiment, the resistance assembly includes:

[0016] A first connecting column is provided on the bottom plate;

[0017] A second connecting post is provided on the calf fixator; and

[0018] A tension spring, two ends of which are respectively connected to the first connecting post and the second connecting post.

[0019] In a preferred embodiment, a limiting belt is provided on the bottom plate, and a limiting plate is provided at one end of the bottom plate.

[0020] In a preferred embodiment, the locking mechanism includes:

[0021] A connecting seat is provided on the calf fixator, and a U-shaped frame is provided on the connecting seat;

[0022] A connecting ring is provided at the end of the support frame, the connecting seat is rotatably provided in the connecting ring, and a sliding frame is provided on the connecting ring; and

[0023] The movable column is slidably mounted in the sliding frame, and one end of the movable column is provided with a locking rod, the locking rod can be mounted in the U-shaped frame, and the other end of the movable column is provided with a counterweight block.

[0024] In a preferred embodiment, a mounting base is provided on the base plate, a rotating shaft is rotatably provided on the mounting base, a connecting arm is provided at the end of the rotating shaft, a rotatable massage wheel is provided at the end of the connecting arm, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the mounting base.

[0025] In a preferred embodiment, one end of the connecting arm is rotatably arranged at the end of the rotating shaft and is provided with a ratchet, a mounting plate is provided on the rotating shaft, a stop frame is provided at the bottom of the mounting plate, a pawl is hinged on the mounting plate, one end of the pawl is clamped on the ratchet, and a press plate is provided at the other end, and an elastic member is provided between the pawl and the stop frame.

[0026] In a preferred embodiment, a stopper is provided on one side of the mounting seat, and the stopper abuts against the side wall of the stop frame.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] When the device is in use, the thigh fixator can be fixed on the patient's thigh, the knee fixator can be fixed on the patient's knee, and the calf fixator can be fixed on the patient's calf. The soles of the patient's feet are in contact with the bottom plate. During the rehabilitation process, the patient can place his legs flat on the support. The locking mechanism releases the position lock of the bottom plate when the device is placed horizontally. The patient can drive the bottom plate to rotate along the hinge point between the support frame and the calf fixator by moving his feet, and apply resistance to the movement of the bottom plate through the resistance component to exercise the muscles and ligaments at the ankle, thereby improving the efficiency of ankle joint injury rehabilitation. When the patient needs to move in daily life, the leg and the device are placed vertically on the ground. The locking mechanism locks the position of the bottom plate on the calf fixator when the device is placed vertically, so that the device moves in an integrated manner to support the patient when the patient walks, thereby achieving the purpose of assisting the patient in walking and avoiding affecting the patient's normal life due to ankle joint damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0030] Figure 1 A schematic diagram of the three-dimensional structure of an ankle injury rehabilitation device provided by the present invention;

[0031] Figure 2 This is a schematic structural diagram of a knee fixator in an ankle injury rehabilitation device of the present invention;

[0032] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle;

[0033] Figure 4 This is a schematic structural diagram of a bottom plate and parts above it in an ankle injury rehabilitation device of the present invention;

[0034] Figure 5 for Figure 4 A magnified schematic diagram of area B in the middle;

[0035] Figure 6 This is a side view of the installation of a massage wheel in an ankle injury rehabilitation device of the present invention;

[0036] Figure 7 This is a rear view of the installation of a massage wheel in an ankle injury rehabilitation device of the present invention.

[0037] Reference numerals:

[0038] 1. Thigh fixator; 11. Protective pad; 12. Lock; 13. First connecting frame; 14. Guard plate;

[0039] 2. Knee fixator; 21. Second connecting frame; 22. Calf fixator; 23. Connecting seat; 24. U-shaped frame;

[0040] 3. Bottom plate; 31. Limiting belt; 32. Support frame; 33. Connecting ring; 34. Sliding frame; 35. Movable column; 36. Locking rod; 37. Counterweight; 38. Limiting plate;

[0041] 4. First connecting column; 41. Second connecting column; 42. Tension spring;

[0042] 5. Mounting seat; 51. Stopper; 52. Rotating shaft; 53. Torsion spring; 54. Mounting plate; 55. Stop frame; 56. Ratchet; 57. Press plate; 58. Elastic member;

[0043] 6. Connecting arm; 61. Ratchet; 62. Massage wheel. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0045] Example:

[0046] like Figure 1 、 2As shown in Figure 4, the present invention provides an ankle joint injury rehabilitation device, including a thigh fixator 1, a protective plate 14 connected by a first connecting frame 13 is provided on the thigh fixator 1, the end of the protective plate 14 is hinged with a knee fixator 2, the knee fixator 2 is provided with a calf fixator 22 connected by a second connecting frame 21, and further comprising a base plate 3, a support frame 32 is provided on the base plate 3, the end of the support frame 32 is hinged to the calf fixator 22, the thigh fixator 1, the knee fixator 2 and the calf fixator 22 are all deformable arc-shaped plates, and their ends are fixedly connected by a lock buckle 12.

[0047] When using the device, the thigh brace 1, knee brace 2, and calf brace 22 are respectively placed on the patient's thigh, knee, and calf, and their ends are secured with a lock 12 to complete the installation of the device. After installation, the foot is placed on the base plate 3, and the forward movement of the foot drives the base plate 3 along the hinge between the support frame 32 and the calf brace 22, which is located at the ankle. The thigh brace 1, knee brace 2, and calf brace 22 are all provided with a protective pad 11 made of a flexible material on the inside. The provision of the protective pad 11 not only protects the patient's limbs and prevents pressure sores, but also increases the friction between the device and the patient's skin, preventing displacement of the device on the patient's limbs. A limiting belt 31 is provided on the bottom plate 3, and a limiting plate 38 is provided at one end of the bottom plate 3. The cooperation between the limiting belt 31 and the limiting plate 38 can prevent the foot from being displaced relative to the bottom plate 3 during the activity, thereby improving the reliability of the device when in use.

[0048] like Figure 1 、 4 As shown, in this embodiment, a resistance assembly connected to the calf support 22 is provided on the base plate 3. The resistance assembly applies resistance to the movement of the base plate 3 on the calf support 22. The resistance assembly includes a first connecting post 4 provided on the base plate 3 and a second connecting post 41 provided on the calf support 22. The first connecting post 4 and the second connecting post 41 are connected by a tension spring 42.

[0049] When the patient moves his feet, the base plate 3 is driven to move, and the distance between the base plate 3 and the calf fixator 22 is increased. The tension spring 42 applies resistance to the movement of the base plate 3 to achieve the purpose of exercising the patient's ankle joint and improve rehabilitation efficiency.

[0050] like Figure 1 、 2As shown, in this embodiment, two sets of second connecting frames 21 are provided, and both sets of second connecting frames 21 are curved. The curved second connecting frames 21 provide support for the patient's legs during exercise or rest, allowing the feet greater room for movement while also elevating the patient's feet to reduce swelling. Furthermore, the planes of the two sets of second connecting frames 21 are angled, providing stable support for the patient's feet and preventing secondary injury.

[0051] like Figures 2 to 5 As shown, in this embodiment, a locking mechanism is provided at the hinged connection between the support frame 32 and the calf anchor 22. The locking mechanism locks the position of the base plate 3 on the calf anchor 22 when the device is placed vertically, and releases the position lock of the base plate 3 when the device is placed horizontally. The locking mechanism includes a connecting seat 23 provided on the calf anchor 22, a U-shaped frame 24 provided on the connecting seat 23, a connecting ring 33 provided at the end of the support frame 32, the connecting seat 23 rotatably disposed within the connecting ring 33, a sliding frame 34 provided on the connecting ring 33, a movable column 35 slidably mounted within the sliding frame 34, a locking rod 36 provided at one end of the movable column 35, the locking rod 36 being locked in the U-shaped frame 24, and a counterweight 37 provided at the other end of the movable column 35.

[0052] When the patient's foot is placed flat for rehabilitation exercises, the counterweight 37 causes the movable column 35 to slide to the end of the slide frame 34 away from the U-shaped frame 24, thereby releasing the position of the base plate 3 on the calf fixator 22, allowing the patient to perform foot flexion exercises. When the patient needs to stand up and walk a short distance, the device is in a vertical position as the patient stands up. The counterweight 37 causes the movable column 35 to slide in the slide frame 34 until the locking rod 36 slides into the U-shaped frame 24, thereby locking the position of the base plate 3 on the calf fixator 22. This makes the device integrated and can provide auxiliary support for the patient's body to assist the patient in walking short distances, reducing the impact of ankle joint injuries on the patient's daily life.

[0053] like Figure 4 、 6As shown in Figures 7 and 8, in this embodiment, a mounting base 5 is provided on the base plate 3. A rotating shaft 52 is rotatably provided on the mounting base 5. A connecting arm 6 is provided at the end of the rotating shaft 52. A rotatable massage wheel 62 is provided at the end of the connecting arm 6. A torsion spring 53 is sleeved on the rotating shaft 52. One end of the torsion spring 53 is fixedly connected to the rotating shaft 52 and the other end is fixedly connected to the mounting base 5. One end of the connecting arm 6 is rotatably provided at the end of the rotating shaft 52 and is provided with a ratchet 61. A mounting plate 54 is provided on the rotating shaft 52. A stop frame 55 is provided at the bottom of the mounting plate 54. A pawl 56 is hingedly connected to the mounting plate 54. One end of the pawl 56 is engaged with the ratchet 61 and the other end is provided with a pressing plate 57. An elastic member 58 is provided between the pawl 56 and the stop frame 55. A stop block 51 is provided on one side of the mounting base 5, and the stop block 51 abuts against the side wall of the stop frame 55.

[0054] Before performing foot exercises, the connecting arm 6 can be rotated to position the massage wheel 62 against the muscles at the back of the ankle. During rotation, the stopper 51 limits the stop frame 55, preventing the mounting plate 54 from rotating. This allows the connecting arm 6 to move relative to the mounting plate 54, causing the ratchet 61 to rotate. The pawl 56, under the action of the elastic member 58, remains engaged with the ratchet 61, locking the position of the connecting arm 6 in one direction. During forward movement of the foot, the massage wheel 62 rolls along the muscles to massage the ankle muscles. The ratchet 61 and pawl 56 cooperate to drive the mounting plate 54, causing the rotating shaft 52 to rotate. The torsion spring 53 resists the rotation of the rotating shaft 52, thereby enhancing the massage effect. The pawl 56 can be disengaged from the ratchet 61 by pressing the button 57, facilitating the reset of the connecting arm 6 and massage wheel 62.

[0055] Specific usage and beneficial effects of the present invention:

[0056] When the device is in use, the thigh fixator 1 can be fixed on the patient's thigh, the knee fixator 2 can be fixed on the patient's knee, and the calf fixator 22 can be fixed on the patient's calf. The patient's foot is in contact with the base plate 3. During the rehabilitation process, the patient can place the leg flat on the support. The locking mechanism releases the position lock of the base plate 3 when the device is placed horizontally. The patient can drive the base plate 3 to rotate along the hinge point between the support frame 32 and the calf fixator 22 by moving the foot, and apply resistance to the movement of the base plate 3 through the resistance component to exercise the muscles and ligaments at the ankle and improve the efficiency of ankle joint injury rehabilitation. When the patient needs to move in daily life, the leg and the device are placed vertically on the ground. The locking mechanism locks the position of the base plate 3 on the calf fixator 22 when the device is placed vertically, so that the device moves in an integrated manner to support the patient when the patient walks, thereby achieving the purpose of assisting the patient in walking and avoiding affecting the patient's normal life due to ankle joint damage.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications and improvements may be made based on the present invention, as will be apparent to those skilled in the art. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to fall within the scope of protection claimed in the present invention.

Claims

1. An ankle injury rehabilitation device, characterized in that: Includes: A thigh fixator (1) is provided with a guard plate (14) connected via a first connecting frame (13); A knee fixator (2) is hinged to the end of the guard plate (14) and is provided with a calf fixator (22) connected via a second connecting frame (21); The bottom plate (3) is provided with a support frame (32), and the end of the support frame (32) is hinged to the calf fixator (22); a resistance assembly disposed on the base plate (3) and connected to the calf fixator (22) to apply resistance to the movement of the base plate (3) on the calf fixator (22); and A locking mechanism is provided at a hinge between the support frame (32) and the calf fixator (22) to lock the position of the base plate (3) on the calf fixator (22) when the device is placed vertically, and to release the position lock of the base plate (3) when the device is placed horizontally.

2. The ankle joint injury rehabilitation device according to claim 1, characterized in that: The thigh fixer (1), the knee fixer (2) and the calf fixer (22) are all deformable arc-shaped plates, and their ends are fixedly connected by lock buckles (12).

3. The ankle joint injury rehabilitation device according to claim 1, characterized in that: Protective pads (11) made of flexible material are provided on the inner sides of the thigh fixer (1), the knee fixer (2) and the calf fixer (22).

4. The ankle joint injury rehabilitation device according to claim 1, characterized in that: Two groups of the second connecting frames (21) are provided, and both groups of the second connecting frames (21) are arc-shaped, and the planes where the two groups of the second connecting frames (21) are located have an angle.

5. The ankle joint injury rehabilitation device according to claim 1, characterized in that: The resistance component includes: A first connecting column (4) is arranged on the bottom plate (3); A second connecting post (41) is provided on the calf fixator (22); and The tension spring (42) has two ends connected to the first connecting column (4) and the second connecting column (41) respectively.

6. The ankle joint injury rehabilitation device according to claim 1, characterized in that: A limiting belt (31) is provided on the bottom plate (3), and a limiting plate (38) is provided at one end of the bottom plate (3).

7. The ankle joint injury rehabilitation device according to claim 1, characterized in that: The locking mechanism includes: A connecting seat (23) is provided on the calf fixer (22), and a U-shaped frame (24) is provided on the connecting seat (23); A connecting ring (33) is provided at the end of the support frame (32), the connecting seat (23) is rotatably provided in the connecting ring (33), and a sliding frame (34) is provided on the connecting ring (33); and A movable column (35) is slidably mounted in the sliding frame (34), and a locking rod (36) is provided at one end thereof. The locking rod (36) can be mounted in the U-shaped frame (24). A counterweight (37) is provided at the other end of the movable column (35).

8. The ankle joint injury rehabilitation device according to claim 1, characterized in that: A mounting seat (5) is provided on the bottom plate (3), a rotating shaft (52) is rotatably provided on the mounting seat (5), a connecting arm (6) is provided at the end of the rotating shaft (52), a rotatable massage wheel (62) is provided at the end of the connecting arm (6), a torsion spring (53) is sleeved on the rotating shaft (52), one end of the torsion spring (53) is fixedly connected to the rotating shaft (52), and the other end is fixedly connected to the mounting seat (5).

9. The ankle joint injury rehabilitation device according to claim 8, characterized in that: One end of the connecting arm (6) is rotatably arranged at the end of the rotating shaft (52) and is provided with a ratchet (61); a mounting plate (54) is provided on the rotating shaft (52); a stop frame (55) is provided at the bottom of the mounting plate (54); a pawl (56) is hinged on the mounting plate (54); one end of the pawl (56) is clamped on the ratchet (61) and the other end is provided with a pressing plate (57); an elastic member (58) is provided between the pawl (56) and the stop frame (55).

10. The ankle joint injury rehabilitation device according to claim 9, characterized in that: A stopper (51) is provided on one side of the mounting seat (5), and the stopper (51) abuts against a side wall of the stop frame (55).

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