Lower limb training aid for Parkinson patients

Abstract

The invention relates to the technical field of lower limb training, and discloses a Parkinson's patient lower limb training aid, which comprises a thigh seat and a shank seat, which are respectively fixed on the rear sides of thighs and shanks; the upper connecting rod is arranged at the bottom of the thigh seat, and the bottom end is fixedly connected with a fixing plate; the top end of the lower supporting rod is fixedly connected with a rotating disc; the fixing plate and the rotating disc are rotationally connected, a resistance mechanism is arranged at the joint, and the smaller the included angle between the upper connecting rod and the lower supporting rod is, the larger the resistance provided by the resistance mechanism is. According to the lower limb training assist device for the Parkinson patient, through dynamic resistance provided by the arc-shaped spring, the backward bending phenomenon of shanks of the patient in high leg lifting training can be effectively limited, training actions are standardized, it is guaranteed that target muscle groups are fully activated, and therefore the training effect is guaranteed, and the training efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of lower limb training, in particular to a lower limb training aid for Parkinson's disease patients. Background Art

[0002] Parkinson's disease is a common neurodegenerative disease, which is mainly manifested by slow movements, abnormal gait and unstable posture, which seriously affect the quality of life of patients. To improve the gait problem of Parkinson's patients, high leg training is one of the effective ways to improve the patient's lower limb muscle strength, enhance gait coordination, and significantly improve the patient's balance ability. However, in the actual training process, the patient's calf will always bend backward involuntarily.

[0003] The ideal movement for high-leg training is to use the thigh to drive the calf upward, with the thigh and calf at about 90 degrees, while keeping the toes facing upward to ensure that the lower limb muscles are fully exercised and improve the patient's balance ability. However, due to the lack of lower limb muscle strength in Parkinson's patients, especially the weakened function of the tibialis anterior and quadriceps femoris, coupled with the slow movement and coordination disorders caused by the disease, patients often have their calves swinging backwards when raising their legs. The impact of this phenomenon is very serious. First, calf flexion will cause the target muscle groups (such as the quadriceps and tibialis anterior) to be unable to be effectively activated, thereby reducing the efficiency of training. Secondly, this irregular movement will strengthen the patient's poor gait, such as dragging or asymmetrical gait, which has a completely opposite training effect. In addition, calf flexion will increase the risk of imbalance during training, especially for Parkinson's patients who already have weak posture control ability.

[0004] Existing lower limb rehabilitation trainers mainly focus on training lower limb strength or improving walking stability, but cannot solve the problem of calf flexion in high-leg training. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a lower limb training aid for Parkinson's disease patients, which has the advantage of being able to effectively avoid calf flexion during high-leg raising training.

[0006] (II) Technical solution In order to achieve the above-mentioned purpose of being able to effectively avoid calf flexion during high leg raising training, the present invention provides the following technical solution: a lower limb training aid for Parkinson's disease patients, comprising: The thigh seat and the calf seat are fixed on the back of the thigh and the calf respectively; An upper connecting rod is arranged at the bottom of the thigh seat, and a fixing plate is fixedly connected to the bottom end thereof; The lower support rod is arranged on the top of the calf seat, and the top end is fixedly connected with a rotating disk; The fixed plate is rotationally connected to the rotating disk, and a resistance mechanism is provided at the connection. The smaller the angle between the upper connecting rod and the lower supporting rod, the greater the resistance provided by the resistance mechanism.

[0007] As a preferred technical solution of the present invention, the thigh seat and the calf seat are fixed on the legs by binding with straps.

[0008] As a preferred technical solution of the present invention, a ball head is fixedly connected to the top end of the upper connecting rod, and the ball head is rotatably installed in a ball groove, and the ball groove is opened at the bottom of the thigh seat.

[0009] As a preferred technical solution of the present invention, the resistance mechanism includes a fixed shaft, a fixed bearing, a support plate, a spinning plate and an arc spring; A fixed shaft is fixedly installed at the center of the fixed plate, and the fixed shaft is rotatably installed in the rotating disk through a fixed bearing; A spinning plate is installed on the inner wall of the rotating disk, and a supporting plate is installed on the outer wall of the fixed shaft. The supporting plate and the spinning plate are arranged one above and one below, and an arc spring is fixedly arranged between the spinning plate and the supporting plate. As the angle between the upper connecting rod and the lower supporting rod decreases, the arc spring is gradually compressed.

[0010] As a preferred technical solution of the present invention, it also includes an arc-shaped guide rod, which is inserted into the arc-shaped spring; One end of the guide rod is fixedly mounted on the spinning plate, and the other end is inserted into a rod groove provided on the supporting plate.

[0011] As a preferred technical solution of the present invention, the support plate can move along the peripheral wall of the fixed axis to adjust its position.

[0012] As a preferred technical solution of the present invention, a rotating sleeve is rotatably arranged in the fixed shaft, the supporting plate is fixedly mounted on the rotating sleeve, and a plate groove for moving the supporting plate is also provided on the outer wall of the fixed shaft; A driving member for driving the rotating sleeve to rotate is also arranged in the fixed shaft.

[0013] As a preferred technical solution of the present invention, the driving member includes a screw rod, a knob, a nut, a limit rod and a slider; A screw rod is rotatably mounted in the middle of the fixed shaft, and an end of the screw rod extends to the outside of the fixed shaft and is fixedly connected to a knob; The outer wall of the screw rod is threadedly connected with a screw nut, and a limit rod is movably inserted into the screw nut, and the limit rod is fixedly installed in the fixed shaft; A sliding block is fixedly mounted on the outer wall of the nut, and the sliding block is slidably arranged in an oblique guiding groove, and the oblique guiding groove is arranged on the inner wall of the rotating sleeve.

[0014] As a preferred technical solution of the present invention, it also includes a shoe insole bonded to the sole of the patient; Both sides of the front end of the insole are raised to form side convex parts, and elastic ropes are installed on the side convex parts. The other end of the elastic rope is connected to the calf seat.

[0015] As a preferred technical solution of the present invention, pressure sensors are evenly installed on the insole.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides a lower limb training aid for Parkinson's disease patients, which has the following beneficial effects: 1. The lower limb training aid for Parkinson's patients can effectively limit the flexion of the patient's calf during high-leg training through the dynamic resistance provided by the arc spring, standardize the training movements, and ensure that the target muscle groups are fully activated, thereby ensuring the training effect and improving the training efficiency.

[0017] 2. The resistance strength of the arc spring of the Parkinson's disease patient lower limb training aid is adjustable, so that the resistance size can be flexibly adjusted according to the patient's rehabilitation stage and individual needs to meet personalized training needs.

[0018] 3. The lower limb training aid for Parkinson's patients has an insole connected to the calf seat by an elastic rope. It can help patients keep their toes facing upward during high-leg training, improve gait coordination, and further enhance the control ability of the lower limb muscles and the stability of gait. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an enlarged schematic diagram of the thigh seat portion of the present invention; Figure 3 A cross-sectional view of a rotating disk portion of the present invention; Figure 4 It is an exploded schematic diagram of the rotating disk part of the present invention; Figure 5 is a cross-sectional view of the fixed shaft portion of the present invention; Figure 6 It is an enlarged schematic diagram of the insole part of the present invention.

[0020] In the figure: 1. thigh seat; 2. calf seat; 3. upper connecting rod; 4. fixed plate; 5. lower supporting rod; 6. rotating plate; 7. ball head; 8. ball groove; 9. fixed shaft; 10. fixed bearing; 11. supporting plate; 12. spinning plate; 13. arc spring; 14. guide rod; 15. rod groove; 16. rotating sleeve; 17. screw rod; 18. knob; 19. nut; 20. limit rod; 21. slider; 22. insole; 23. pressure sensor; 24. side convex part; 25. elastic rope; 26. T-shaped slider; 27. T-shaped slide groove; 28. locking bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1: See also Figure 1-Figure 5 , a lower limb training aid for Parkinson's patients, comprising a thigh seat 1 and a calf seat 2, which are respectively fixed to the back of the thigh and the calf by straps, or Velcro straps can be used to fix the positions of the two; like Figure 1 As shown, an upper connecting rod 3 is provided at the bottom of the thigh seat 1, and a fixing plate 4 is fixedly connected to the bottom end of the upper connecting rod 3. A lower supporting rod 5 is provided at the top of the calf seat 2, and a rotating disk 6 is fixedly connected to the top end of the lower supporting rod 5. The fixing plate 4 and the rotating disk 6 are rotatably connected, and a resistance mechanism is provided at the connection. The smaller the angle between the upper connecting rod 3 and the lower supporting rod 5, the greater the resistance provided by the resistance mechanism. When worn, the thigh seat 1 and the calf seat 2 are fixed on the thigh and calf respectively, and the rotating disk 6 is located on the side of the knee. During the high leg raising training, the resistance provided by the resistance mechanism can effectively limit the flexion phenomenon of the patient's calf, standardize the training movements, ensure that the target muscle groups are fully activated, thereby ensuring the training effect and improving the training efficiency; In this embodiment, Figure 2 As shown, a ball head 7 is fixedly connected to the top of the upper connecting rod 3, and the ball head 7 is rotatably installed in a ball groove 8, and the ball groove 8 is opened at the bottom of the thigh seat 1. Therefore, the upper connecting rod 3 has a certain degree of freedom and can automatically adapt to the left and right slight tilt of the calf.

[0023] In this embodiment, a resistance mechanism is specifically provided, such as Figure 3 and Figure 4As shown, the resistance mechanism includes a fixed shaft 9, a fixed bearing 10, a supporting plate 11, a spinning plate 12 and an arc spring 13. The fixed shaft 9 is fixedly installed at the center of the fixed plate 4, and the fixed shaft 9 is rotatably installed in the rotating disk 6 through the fixed bearing 10. The spinning plate 12 is installed on the inner wall of the rotating disk 6, and the supporting plate 11 is installed on the outer wall of the fixed shaft 9. The supporting plate 11 and the spinning plate 12 are arranged one above the other, and an arc spring 13 is fixedly arranged between the spinning plate 12 and the supporting plate 11. As the patient raises his legs high, the angle between the patient's thigh and calf gradually tends to 90 degrees from 180 degrees, thereby reducing the angle between the upper connecting rod 3 and the lower support rod 5. As the angle between the upper connecting rod 3 and the lower support rod 5 decreases, the rotating disk 6 will rotate relative to the fixed plate 4, thereby gradually compressing the arc spring 13 to provide resistance and prevent the patient's calf from being excessively flexed (the more the arc spring 13 is compressed, the greater the resistance provided).

[0024] like Figure 3 As shown, an arc-shaped guide rod 14 is also provided, which is inserted into the arc-shaped spring 13. One end of the guide rod 14 is fixedly mounted on the spinning plate 12, and the other end is inserted into a rod groove 15 opened on the supporting plate 11, which can further ensure the stability of the arc-shaped spring 13 when compressed.

[0025] In the present invention, the support plate 11 can also move along the peripheral wall of the fixed axis 9 to adjust its position, thereby controlling the initial compression degree of the arc spring 13, and then controlling the resistance strength. By adjusting the resistance strength, the resistance size can be flexibly adjusted according to the patient's rehabilitation stage and individual needs to meet the patient's personalized training needs.

[0026] Specifically, Figure 4 As shown, a rotating sleeve 16 is rotatably arranged inside the fixed shaft 9, and the supporting plate 11 is fixedly mounted on the rotating sleeve 16. A plate groove for moving the supporting plate 11 is also provided on the outer wall of the fixed shaft 9. In addition, a driving member for driving the rotating sleeve 16 to rotate is also provided inside the fixed shaft 9. The driving member drives the rotating sleeve 16 to rotate, and the position of the supporting plate 11 can be adjusted by rotating the rotating sleeve 16.

[0027] In this embodiment, the driving member specifically includes a screw rod 17, a knob 18, a screw nut 19, a limit rod 20 and a slider 21. Figure 4 and Figure 5 As shown, a screw rod 17 is rotatably installed in the middle of the fixed shaft 9, and the end of the screw rod 17 extends to the outside of the fixed shaft 9 and is fixedly connected to a knob 18. The outer wall of the screw rod 17 is threadedly connected to a nut 19, and a limit rod 20 is movably inserted on the nut 19. The limit rod 20 is fixedly installed in the fixed shaft 9. Through the insertion of the limit rod 20, the nut 19 can only do translational movement under the action of the screw rod 17, but cannot rotate; like Figure 5As shown, a slider 21 is fixedly mounted on the outer wall of the nut 19, and the slider 21 is slidably arranged in an oblique guide groove, which is provided on the inner wall of the rotating sleeve 16. When the nut 19 translates, the slider 21 will slide in the oblique guide groove. Since the slider 21 can only translate but cannot rotate, the rotating sleeve 16 will be driven to rotate through the oblique guide groove to adjust the position of the supporting plate 11. In this embodiment, by turning the knob 18, the movement of the nut 19 can be controlled, and then the position of the supporting plate 11 can be controlled. The operation is simple and convenient, and the structure is stable, with few failures and easy maintenance.

[0028] Embodiment 2: See also Figure 1 and Figure 6 On the basis of the first embodiment, in this embodiment, a shoe insole 22 is further provided, which is bonded to the sole of the patient. Figure 6 As shown, both sides of the front end of the insole 22 are raised to form side convex parts 24, and elastic ropes 25 are installed on the side convex parts 24, and the other end of the elastic rope 25 is connected to the calf seat 2; The insole 22 is connected to the calf seat 2 through an elastic rope 25. The elastic rope 25 pulls the front end of the sole of the foot, which can help the patient keep the toes facing upward during high-leg raising training, thereby improving the coordination of gait and further enhancing the control ability of the lower limb muscles and the stability of gait.

[0029] In this embodiment, the elastic rope 25 is connected to the T-shaped slider 26, and the T-shaped slider 26 is slidably set in the T-shaped slide groove 27 opened on the calf seat 2, and is locked in place by the locking bolt 28. In this way, by adjusting the position of the T-shaped slider 26, it can adapt to patients with different calf lengths, so that the elastic rope 25 has a suitable tension to pull the front end of the sole of the foot to avoid excessive or insufficient tension.

[0030] like Figure 6 As shown, pressure sensors 23 are evenly installed on the insole 22. The pressure sensors 23 can monitor the pressure distribution on the soles of the patients in real time during the high-leg raising training, analyze the gait characteristics of the patients (such as the center of gravity), and transmit the monitoring data to the host computer for the physician to analyze.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lower limb training aid for Parkinson's disease patients, characterized in that: include: The thigh seat (1) and the calf seat (2) are fixed to the rear sides of the thigh and calf respectively; An upper connecting rod (3) is arranged at the bottom of the thigh seat (1), and a fixing plate (4) is fixedly connected to the bottom end thereof; A lower support rod (5) is arranged on the top of the calf seat (2), and a rotating disk (6) is fixedly connected to the top of the lower support rod; The fixed plate (4) is rotationally connected to the rotating disk (6), and a resistance mechanism is provided at the connection. The smaller the angle between the upper connecting rod (3) and the lower supporting rod (5), the greater the resistance provided by the resistance mechanism.

2. The lower limb training aid for Parkinson's disease patients according to claim 1, characterized in that: The thigh seat (1) and the calf seat (2) are fixed on the legs by means of straps.

3. The lower limb training aid for Parkinson's disease patients according to claim 1, characterized in that: A ball head (7) is fixedly connected to the top end of the upper connecting rod (3), and the ball head (7) is rotatably mounted in a ball groove (8). The ball groove (8) is provided at the bottom of the thigh seat (1).

4. The lower limb training aid for Parkinson's disease patients according to claim 1, characterized in that: The resistance mechanism comprises a fixed shaft (9), a fixed bearing (10), a support plate (11), a spinning plate (12) and an arc spring (13); A fixed shaft (9) is fixedly mounted at the center of the fixed plate (4), and the fixed shaft (9) is rotatably mounted in the rotating disk (6) via a fixed bearing (10); A spinning plate (12) is mounted on the inner wall of the rotating disk (6), and a supporting plate (11) is mounted on the outer wall of the fixed shaft (9). The supporting plate (11) and the spinning plate (12) are arranged one above the other, and an arc spring (13) is fixedly arranged between the spinning plate (12) and the supporting plate (11). As the angle between the upper connecting rod (3) and the lower supporting rod (5) decreases, the arc spring (13) is gradually compressed.

5. The lower limb training aid for Parkinson's disease patients according to claim 4, characterized in that: It also includes an arc-shaped guide rod (14) which is inserted into the arc-shaped spring (13); One end of the guide rod (14) is fixedly mounted on the spinning plate (12), and the other end is inserted into a rod groove (15) provided on the supporting plate (11).

6. The lower limb training aid for Parkinson's disease patients according to claim 4 or 5, characterized in that: The supporting plate (11) can move along the peripheral wall of the fixed shaft (9) to adjust its position.

7. The lower limb training aid for Parkinson's disease patients according to claim 6, characterized in that: A rotating sleeve (16) is rotatably arranged inside the fixed shaft (9), the supporting plate (11) is fixedly mounted on the rotating sleeve (16), and a plate groove for allowing the supporting plate (11) to move is also provided on the outer wall of the fixed shaft (9); A driving member for driving the rotating sleeve (16) to rotate is also provided in the fixed shaft (9).

8. The lower limb training aid for Parkinson's disease patients according to claim 7, characterized in that: The driving member comprises a screw rod (17), a knob (18), a nut (19), a limit rod (20) and a slider (21); A screw rod (17) is rotatably mounted in the middle of the fixed shaft (9), and an end of the screw rod (17) extends to the outside of the fixed shaft (9) and is fixedly connected to a knob (18); The outer wall of the screw rod (17) is threadedly connected to a screw nut (19), a limit rod (20) is movably inserted into the screw nut (19), and the limit rod (20) is fixedly installed in the fixed shaft (9); A slider (21) is fixedly mounted on the outer wall of the nut (19), and the slider (21) is slidably arranged in an inclined guide groove, and the inclined guide groove is formed on the inner wall of the rotating sleeve (16).

9. The lower limb training aid for Parkinson's disease patients according to claim 1, characterized in that: Also included is a shoe insole (22) bonded to the sole of the patient's shoe; Both sides of the front end of the insole (22) are raised to form side convex parts (24), and an elastic rope (25) is installed on the side convex part (24), and the other end of the elastic rope (25) is connected to the calf seat (2).

10. The lower limb training aid for Parkinson's disease patients according to claim 9, characterized in that: Pressure sensors (23) are evenly mounted on the insole (22).

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