Trainer suitable for sitting knee and ankle flexion and extension of hemiplegic patient

Abstract

The invention discloses a sitting knee and ankle flexion and extension training device suitable for a hemiplegic patient, and belongs to the technical field of training devices. One surface of a pedal is fixedly connected with symmetrical side plates, a baffle and a vertical plate, the side surfaces of the side plates and the baffle are detachably connected with auxiliary wheels, and the side surface of one end of the vertical plate is detachably connected with a connecting plate through a connecting piece; according to the hemiplegic lower limb knee flexion / extension and ankle flexion / extension muscle strength and control force training device, the hemiplegic lower limb knee flexion / extension and ankle flexion / extension muscle strength and control force can be provided for a hemiplegic patient in a sitting state, the stability of hip joints can be improved, hip, knee and ankle movement is closer to overall and continuous movement when the hemiplegic patient does not suffer from a disease, and the hemiplegic lower limb knee flexion / extension and ankle flexion / extension muscle strength training device is suitable for popularization and application. The rehabilitation training device has the advantages that rehabilitation training is more effective, abnormal movement modes of patients are reduced, difficulty in rotation of the rollers under different conditions can be adjusted by the aid of adjusting rods, adjusting frames and rubber strips, and accordingly exercise effects can be improved.

Description

Technical Field

[0001] This invention relates to the field of training equipment technology, and more specifically, to a training device for seated knee and ankle flexion and extension in hemiplegic patients. Background Technology

[0002] Hemiplegia, also known as paralysis of one side of the body, refers to motor dysfunction of the upper and lower limbs, facial muscles, and lower part of the tongue muscles on the same side. It is a common symptom of acute cerebrovascular disease.

[0003] Currently, the rehabilitation trainers on the market that are suitable for lower limb training in a seated position for hemiplegic patients are all single-joint rehabilitation trainers. For example, there is a quadriceps trainer suitable for seated knee training for hemiplegic patients. It can only train one group in a single direction and lacks training on the contraction control of the agonist and antagonist muscles. In addition, it lacks training on hip joint stability during training. There is also a trainer for training the ankle joint group, but it does not include knee training and is not suitable for patients with poor hip joint control. To address these issues, we have designed a seated knee and ankle flexion and extension trainer suitable for hemiplegic patients. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide a seated knee and ankle flexion and extension training device suitable for hemiplegic patients. This invention allows hemiplegic patients to simultaneously train the muscle strength and control of knee flexion / extension and ankle flexion / extension in a seated position, while improving hip joint stability. This makes hip, knee, and ankle movements closer to the overall and continuous movements when not ill, thus improving their abilities and making rehabilitation training more effective. It also reduces the occurrence of abnormal movement patterns in patients. Furthermore, the adjustable rod, adjustable frame, and rubber strip can adjust the difficulty of roller rotation under different conditions, thereby improving the training effect.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A seated knee and ankle flexion and extension training device suitable for hemiplegic patients includes a footboard. Symmetrical side plates, baffles, and a vertical plate are fixedly connected to one surface of the footboard. Auxiliary wheels are detachably connected to the sides of the side plates and baffles. A connecting plate is detachably connected to one end of the vertical plate via a connector. Symmetrical roller frames and symmetrical support plates are fixedly connected to the other surface of the footboard. Rollers with hubs are rotatably connected to one end of each roller frame. An adjusting rod is rotatably connected to the side of the support plate. A sealed bearing is fixedly fitted onto the surface of the adjusting rod, and the outer ring surface of the sealed bearing is fixedly connected to the surface of the footboard. Next, the surface of the adjusting rod is connected to an adjusting frame via a thread, and the side of the adjusting frame is detachably connected to symmetrical rubber strips. This invention can provide hemiplegic patients with the ability to train the strength and control of the knee flexion / extension and ankle flexion / extension muscles of the hemiplegic lower limb while in a sitting position, and can improve hip joint stability, making the hip, knee and ankle movements closer to the overall and continuous movements when not ill, and improving their abilities simultaneously, making rehabilitation training more effective, reducing the occurrence of abnormal movement patterns in patients, and the difficulty of roller rotation can be adjusted under different conditions through the setting of the adjusting rod, adjusting frame and rubber strips, thereby improving the training effect.

[0007] Furthermore, an anti-abrasion pad is detachably connected to the other side of the connecting plate. A second strap is fixedly sewn to the side of the anti-abrasion pad. The surface of the second strap is provided with elastic bands and Velcro, which makes it easy for the user to bind the connecting plate to the user's calf through the second strap, thus preventing the trainer from tipping over.

[0008] Furthermore, the side panel has a perforation on its side, and a first strap is fitted onto the inner wall of the perforation. The first strap is provided with an elastic band and Velcro, which makes it easy for the user to bind and fix the user's foot to the pedal.

[0009] Furthermore, the rubber strip is arc-shaped, and its surface is in contact with and pressed against the surface of the wheel hub. The rubber strip is made of elastic and wear-resistant rubber, and the ease of roller rotation can be controlled by the extrusion strength of the rubber strip.

[0010] Furthermore, a knob is fixedly connected to one end of the adjusting rod, and a compression sleeve is threadedly connected to the surface of the adjusting rod. The side of the compression sleeve contacts and presses against the surface of the support plate. The compression sleeve is used to fix the rotational position of the adjusting rod and prevent the adjusting rod from rotating automatically.

[0011] Furthermore, the extrusion sleeve is polygonal in shape, the extrusion surface of the extrusion sleeve is provided with anti-slip texture, and the extrusion sleeve is made of stainless steel.

[0012] Furthermore, the surface of the adjustment frame has symmetrical sliding holes, and symmetrical guide rods are slidably connected to the inner wall of the sliding holes. The end face of the guide rod is fixedly connected to the surface of the roller frame, and the guide rod ensures the connection stability of the adjustment frame.

[0013] Furthermore, a threaded sleeve is fixedly fitted onto the surface of the adjusting frame, and a threaded hole is provided in the middle position of the threaded sleeve. The surface of the adjusting rod is provided with external threads, and the adjusting frame has the function of horizontal movement under the action of the threads.

[0014] Furthermore, the surfaces of the upright plate and the connecting plate are provided with concentric and coaxial holes, and the inner walls of the holes are in contact with the surface of the connecting parts.

[0015] Furthermore, the knob has anti-slip protrusions on its surrounding sides.

[0016] Compared with the prior art, the advantages of this invention are:

[0017] (1) This invention can provide hemiplegic patients with the ability to train the strength and control of the knee flexion / extension and ankle flexion / extension muscles of the hemiplegic lower limbs while sitting, and can improve the stability of the hip joint, so that the hip, knee and ankle movements are closer to the whole and continuous movements when not ill, and improve their abilities at the same time, making rehabilitation training more effective and reducing the occurrence of abnormal movement patterns in patients.

[0018] (2) The present invention can adjust the difficulty of the roller rotation under different conditions by setting the adjustment rod, adjustment frame and rubber strip, thereby improving the exercise effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a side view of the mounting structure of the connecting plate and the pedal of the present invention;

[0021] Figure 3 for Figure 2 Side view of the adjustment bracket and rubber strip mounting structure;

[0022] Figure 4 for Figure 2 Side view of the roller and roller frame mounting structure;

[0023] Figure 5 This is a bottom view of the side plate structure of the present invention.

[0024] Explanation of the labels in the diagram:

[0025] 1. Pedal, 11. Baffle, 12. Side plate, 13. Vertical plate, 14. Connector, 15. Perforation, 16. First strap, 17. Connecting plate, 18. Anti-wear pad, 19. Second strap, 2. Roller, 21. Roller frame, 22. Wheel hub, 3. Adjusting rod, 31. Knob, 32. Extrusion sleeve, 33. Sealed bearing, 34. Support plate, 4. Adjusting bracket, 41. Rubber strip, 42. Threaded sleeve, 43. Guide rod, 5. Auxiliary wheel. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please see Figure 1-5 A seated knee and ankle flexion and extension training device for hemiplegic patients includes a footboard 1, which facilitates the fixation of the user's affected foot. Symmetrical side plates 12, baffles 11, and a vertical plate 13 are fixedly connected to one surface of the footboard 1. Auxiliary wheels 5 are detachably connected to the sides of the side plates 12 and baffles 11 to prevent tipping. The auxiliary wheels 5 can be used or removed as needed. The baffles 11 restrict the binding position of the foot. The vertical plate 13 facilitates the disassembly and assembly of a connecting plate 17, which prevents tipping after binding. The connecting plate 17 is detachably connected to one side of the vertical plate 13 via a connector 14. Symmetrical roller frames 21 and symmetrical support plates 34 are fixedly connected to the other surface of the footboard 1. There are four roller frames 21, thus providing four rollers at the bottom of the footboard 1. The roller 2 ensures stable movement. One end of the roller frame 21 is rotatably connected to the roller 2, which is equipped with a hub 22. The side of the support plate 34 is rotatably connected to the adjusting rod 3. The adjusting rod 3 is composed of two screws with opposite external threads, which can make the two symmetrical adjusting frames 4 move synchronously in opposite directions, thereby controlling the four rubber strips 41 to move synchronously closer to or further away from the surface of the four hubs 22. The surface of the adjusting rod 3 is fixedly sleeved with a sealed bearing 33, which allows the adjusting rod 3 to rotate freely. The outer ring surface of the sealed bearing 33 is fixedly connected to the surface of the pedal 1. The surface of the adjusting rod 3 is connected to the adjusting frame 4 by threads. The side of the adjusting frame 4 is detachably connected to symmetrical rubber strips 41, which are used to brake the roller 2, thereby controlling the ease of rotation of the roller 2.

[0029] The other side of the connecting plate 17 is detachably connected to an anti-abrasion pad 18. A second strap 19 is fixedly sewn to the side of the anti-abrasion pad 18. The surface of the second strap 19 is provided with elastic band and Velcro, which makes it easy for the user to bind the connecting plate 17 to the user's lower leg through the second strap 19, which has the function of preventing the trainer from tipping over. The side of the side plate 12 is provided with a perforation 15. The inner wall of the perforation 15 is fitted with a first strap 16. The first strap 16 is provided with elastic band and Velcro, which makes it easy for the user to bind and fix the user's foot to the pedal 1. The surfaces of the upright plate 13 and the connecting plate 17 are provided with concentric and coaxial holes, and the inner wall of the holes is in contact with the surface of the connector 14. The sides of the knob 31 are provided with anti-slip protrusions.

[0030] This implementation plan allows hemiplegic patients to train the strength and control of the knee flexion / extension and ankle flexion / extension muscles of the hemiplegic lower limbs while sitting, and improves hip joint stability. This makes the hip, knee, and ankle movements closer to the overall and continuous movements when the patient is not ill, and improves their abilities simultaneously, making rehabilitation training more effective and reducing the occurrence of abnormal movement patterns in patients.

[0031] Example 2

[0032] Please see Figure 1-5 A seated knee and ankle flexion and extension training device for hemiplegic patients includes a footboard 1, which facilitates the fixation of the user's affected foot. Symmetrical side plates 12, baffles 11, and a vertical plate 13 are fixedly connected to one surface of the footboard 1. Auxiliary wheels 5 are detachably connected to the sides of the side plates 12 and baffles 11 to prevent tipping. The auxiliary wheels 5 can be used or removed as needed. The baffles 11 restrict the binding position of the foot. The vertical plate 13 facilitates the disassembly and assembly of a connecting plate 17, which prevents tipping after binding. The connecting plate 17 is detachably connected to one side of the vertical plate 13 via a connector 14. Symmetrical roller frames 21 and symmetrical support plates 34 are fixedly connected to the other surface of the footboard 1. There are four roller frames 21, thus providing four rollers at the bottom of the footboard 1. The roller 2 ensures stable movement. One end of the roller frame 21 is rotatably connected to the roller 2, which is equipped with a hub 22. The side of the support plate 34 is rotatably connected to the adjusting rod 3. The adjusting rod 3 is composed of two screws with opposite external threads, which can make the two symmetrical adjusting frames 4 move synchronously in opposite directions, thereby controlling the four rubber strips 41 to move synchronously closer to or further away from the surface of the four hubs 22. The surface of the adjusting rod 3 is fixedly sleeved with a sealed bearing 33, which allows the adjusting rod 3 to rotate freely. The outer ring surface of the sealed bearing 33 is fixedly connected to the surface of the pedal 1. The surface of the adjusting rod 3 is connected to the adjusting frame 4 by threads. The side of the adjusting frame 4 is detachably connected to symmetrical rubber strips 41, which are used to brake the roller 2, thereby controlling the ease of rotation of the roller 2.

[0033] The rubber strip 41 is arc-shaped, and its surface is pressed against the surface of the hub 22. The rubber strip 41 is made of elastic and wear-resistant rubber. The rubber strip 41 can control the ease of rotation of the roller 2 by the pressure intensity. A knob 31 is fixedly connected to one end of the adjusting rod 3. The surface of the adjusting rod 3 is connected to a compression sleeve 32 by a thread. The side of the compression sleeve 32 is pressed against the surface of the support plate 34. The compression sleeve 32 is used to fix the rotation position of the adjusting rod 3 and prevent the adjusting rod 3 from rotating automatically. The compression sleeve 32 is polygonal in shape, and the compression surface of the compression sleeve 32 is provided with anti-slip texture. The compression sleeve 32 is made of stainless steel. The surface of the adjusting frame 4 has symmetrical sliding holes, and symmetrical guide rods 43 are slidably connected to the inner wall of the sliding holes. The end face of the guide rod 43 is fixedly connected to the surface of the roller frame 21. The guide rod 43 ensures the connection stability of the adjusting frame 4. A threaded sleeve 42 is fixedly fitted onto the surface of the adjusting frame 4. A threaded hole is provided in the middle position of the threaded sleeve 42. The surface of the adjusting rod 3 is provided with external threads. The adjusting frame 4 has the function of horizontal movement under the action of the threads.

[0034] In this embodiment, the ease of rotation of the roller 2 under different conditions can be adjusted by the adjustable rod 3, the adjustable frame 4, and the rubber strip 41, thereby improving the exercise effect.

[0035] When using this seated knee and ankle flexion and extension trainer for hemiplegic patients, first place the device on the ground, place the affected foot of the hemiplegic patient on the upper end of the pedal 1, and secure the foot with the first strap 16. Then, secure the lower leg to the connecting plate 17 with the second strap 19. After securing, slide the device on the ground and adjust the ease of rotation of the rollers 2 under the pedal 1 according to the user's ability. When the adjusting rod 3 rotates clockwise, the symmetrical adjusting frame 4 moves in the opposite direction, moving closer to the symmetrical rollers 2 on both sides of the bottom of the pedal 1, thereby causing the rubber strip 41 to squeeze the hub 22, increasing the difficulty of rotating the rollers 2. When the adjusting rod 3 rotates counterclockwise, the rubber strip 41 moves away from the surface of the hub 22, allowing the rollers 2 to rotate easily. This trainer can train the knee and ankle simultaneously. Therefore, in addition to improving the user's lower limb muscle strength, it can also effectively improve the overall coordination of the knee and ankle joints of hemiplegic patients, reducing stiffness and difficulty in smooth and coordinated movement during walking training.

[0036] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A seated knee and ankle flexion and extension training device suitable for hemiplegic patients, comprising a foot pedal (1), characterized in that: One surface of the pedal (1) is fixedly connected to symmetrical side plates (12), baffles (11), and upright plates (13). The side plates (12) and baffles (11) are detachably connected to auxiliary wheels (5). One side of the upright plate (13) is detachably connected to a connecting plate (17) via a connector (14). The other surface of the pedal (1) is fixedly connected to symmetrical roller frames (21) and symmetrical support plates (34). One end of the roller frame (21) is rotatably connected to a roller (2). The roller (2) is provided with a hub (22). The side of the support plate (34) is rotatably connected to an adjusting rod (3). The surface of the adjusting rod (3) is fixedly fitted with a sealed bearing (33). The outer ring surface of the sealed bearing (33) is fixedly connected to the surface of the pedal (1). The surface of the adjusting rod (3) is threadedly connected to an adjusting frame (4). The side of the adjusting frame (4) is detachably connected to symmetrical rubber strips (41).

2. The seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: The other side of the connecting plate (17) is detachably connected to an anti-abrasion pad (18), and the side of the anti-abrasion pad (18) is fixedly sewn with a second strap (19), and the surface of the second strap (19) is provided with an elastic band and Velcro.

3. The seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: The side of the side plate (12) is provided with a perforation (15), and a first strap (16) is fitted onto the inner wall of the perforation (15). The first strap (16) is provided with an elastic band and Velcro.

4. The seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: The rubber strip (41) is arc-shaped, and the surface of the rubber strip (41) is in contact with and pressed against the surface of the wheel hub (22). The rubber strip (41) is made of elastic wear-resistant rubber.

5. The seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: A knob (31) is fixedly connected to one end of the adjusting rod (3), and a compression sleeve (32) is threadedly connected to the surface of the adjusting rod (3). The side of the compression sleeve (32) contacts and compresses the surface of the support plate (34).

6. A seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 5, characterized in that: The extrusion sleeve (32) is polygonal in shape, and the extrusion surface of the extrusion sleeve (32) is provided with anti-slip texture. The extrusion sleeve (32) is made of stainless steel.

7. The seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: The surface of the adjustment frame (4) has symmetrical sliding holes, and the inner wall of the sliding holes is slidably connected to symmetrical guide rods (43). The end face of the guide rod (43) is fixedly connected to the surface of the roller frame (21).

8. A seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: The surface of the adjusting frame (4) is fixedly fitted with a threaded sleeve (42), the threaded sleeve (42) has a threaded hole in the middle position, and the surface of the adjusting rod (3) has an external thread.

9. A seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: The surfaces of the upright plate (13) and the connecting plate (17) are provided with concentric and coaxial holes, and the inner walls of the holes are in contact with the surface of the connector (14).

10. A seated knee and ankle flexion and extension training device for hemiplegic patients according to claim 1, characterized in that: The knob (31) has anti-slip protrusions on its four sides.

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