Active hip and knee bending trainer for lower limbs
By designing a lower limb active hip flexion and knee flexion training device including top bracket, bottom bracket, fixing rod and treadmill assembly, the problem of insufficient hip flexion and knee flexion in lower limb motor dysfunction in patients with stroke is solved, and resistance can be achieved The improvement of adjustment and training effects improves the patient's muscle strength, endurance and dynamic balance ability.
Patent Information
- Application Number
- CN202411450678.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Lower limb motor dysfunction in patients with stroke leads to insufficient hip flexion and knee flexion, affecting image and function. The prior art is difficult to provide a trainer with adjustable resistance to gradually correct the patient's lower limb tone and muscle strength.
Design a lower limb active hip and knee flexion training device, including top bracket, bottom bracket, fixing rod and treadmill assembly, to achieve fixing and stabilizing the patient through threaded connection, telescopic rod adjustment and universal wheel movement, using treadmill assembly and Adjustment knobs adjust resistance, combining foam pads and fixed adhesive tapes to improve training safety and effectiveness.
By gradually increasing resistance, patients' lower limb muscle strength, endurance and dynamic balance ability will be improved, and their exercise coordination and stability will be enhanced to adapt to the needs of patients of different body sizes and heights.
Smart Images
Figure CN119236371A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rehabilitation training, and particularly relates to a lower limb active hip flexion and knee flexion trainer. Background Art
[0002] Stroke is a brain tissue injury disease characterized by high mortality and disability rates. Due to cerebrovascular occlusion or rupture, blood cannot flow into the brain, causing brain tissue injury. Clinically, it is mainly manifested as hemiplegia of the limbs, speech, and cognitive function disorders, resulting in the patient losing the ability to take care of themselves and reducing the quality of life. The main manifestations of lower limb motor function disorders after stroke are that in the early stage, the muscle tone is relatively low, the muscle strength is poor, and it is in the flaccid paralysis stage. However, as the muscle strength gradually increases, the muscle tone of the patient's lower limbs will also increase, showing knee hyperextension, foot drop and varus, and often insufficient hip flexion and knee flexion, seriously affecting the patient's image and function.
[0003] Therefore, in order to gradually correct the angle of hip flexion and knee flexion of the patient, a trainer that can adjust the resistance size and train the lower limb muscle strength and endurance is needed. Summary of the Invention
[0004] The present invention aims to provide a lower limb active hip flexion and knee flexion trainer to gradually correct the angle of hip flexion and knee flexion of the patient, improve the lower limb muscle strength and endurance, and at the same time improve the coordination and stability of the patient.
[0005] To achieve the above object, the present invention provides the following technical solutions:
[0006] A lower limb active hip flexion and knee flexion trainer includes a top bracket, a bottom bracket, a fixed rod, and a pedal assembly. The top bracket is in a "C" shape structure. A number of threaded holes are symmetrically arranged on both sides of the top bracket. Threaded holes are also arranged on both sides of the fixed rod. The fixed rod and the top bracket are connected and fixed by screws. The top bracket and the bottom bracket are connected by three telescopic rods. The bottom bracket is in a rectangular structure. Support rods are connected to the bottoms of the four corner points of the bottom bracket. Universal wheels are connected to the bottoms of the support rods. Fixed blocks are connected to the sides of the support rods. The fixed blocks are threadedly connected with ground-gripping nails. The ground-gripping nails penetrate through the fixed blocks. Friction blocks are connected to the bottoms of the ground-gripping nails. A cross bar is connected inside the bottom bracket. The cross bar is connected to the pedal assembly. The pedal assembly includes fixing plates connected to both sides of the cross bar. A central turntable is rotatably connected between the two fixing plates. Pedal rods are coaxially connected to both sides of the central turntable. One end of the pedal rod is coaxially connected to the central turntable, and the other end is rotatably connected to a foot pedal. An adjustment knob is threadedly connected inside the cross bar. An arc-shaped block is movably connected to the bottom of the adjustment knob. A number of magnets are connected to the bottom of the arc-shaped block. The arc-shaped block is located above the central turntable.
[0007] Preferably, anti-collision foam sleeves can be detachably connected to the top bracket and the fixed rod.
[0008] Preferably, a stabilizing rod is connected between the support rod and the bottom bracket, and the stabilizing rod, the bottom bracket and the support rod form a triangular stabilizing structure.
[0009] Preferably, the pedal rod is an adjustable telescopic rod.
[0010] Preferably, anti-slip grooves are provided inside the foot pedal.
[0011] Preferably, the top of the arc block is connected to the cross bar through a spring.
[0012] Preferably, foam pads are connected to both the inner side and the outer side of the foot pedal.
[0013] Preferably, a fixing adhesive tape for fixing the sole of the foot is connected to the foot pedal.
[0014] Principle and beneficial effects of the technical solution: The present invention restricts and fixes the patient's upper body between the fixing rod and the top bracket by setting a fixing rod, thereby ensuring the patient's safety during training and preventing falls. The fixing rod can be fixed at different positions, thereby restricting and protecting patients of different body shapes. The top bracket and the bottom of the present invention are connected by a telescopic rod, and the telescopic rod can be adjusted to adjust the height according to the patient's height. The stabilizing rod, the bottom bracket and the supporting rod form a triangular structure, which further improves the stability of the device. The bottom universal wheel can facilitate the movement of the device, and the bottom friction block can be brought into contact with the ground by rotating the gripping nails, thereby stabilizing the device. The treadmill assembly is used for patient lower limb training, and the pedal rod is a telescopic rod, which can be adjusted according to the patient's foot length. By turning the adjusting knob, the arc block is moved away from or close to the center turntable, and the resistance is adjusted by controlling the distance between the magnet and the center turntable. The setting of the foam pad can prevent bumps, and the fixed adhesive tape is used to fix the sole of the foot during training. The invention can train the lower limb muscle strength and endurance by increasing the resistance, and improve the cardiopulmonary function at the same time; because the simulated pedaling device is carried out in a standing position, the center of gravity can be transferred with the force exerted by both feet, which can improve the patient's dynamic balance ability and the coordination of the movement of both lower limbs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the present invention;
[0016] Figure 2 This is an enlarged view of the support rod of the present invention;
[0017] Figure 3 is a structural diagram of a treadmill assembly;
[0018] Figure 4 is a cross-sectional view of a treadmill assembly;
[0019] The names of the corresponding labels in the attached drawings are: top bracket 1, bottom bracket 2, treadmill assembly 3, telescopic rod 4, cross bar 5, stabilizing rod 6, fixed rod 11, screw 12, anti-collision foam sleeve 13, support rod 21, universal wheel 22, fixing block 23, ground-gripping nail 24, friction block 25, fixing plate 31, central turntable 32, pedal rod 33, foot pedal 34, adjustment knob 35, arc-shaped block 36, magnet 37, foam pad 341, fixed adhesive tape 342. Detailed implementation mode
[0020] The present invention will be further described in detail below in conjunction with the attached drawings and the implementation mode:
[0021] As Figure 1-Figure 4 shown, a lower limb active hip flexion and knee flexion trainer includes a top bracket 1, a bottom bracket 2 and a treadmill assembly 3. The top bracket 1 is in a "C" shape structure. A plurality of threaded holes are provided on both sides of the top bracket 1. Threaded holes are also provided on both sides of the fixed rod 11. The threaded holes on the fixed rod 11 correspond to the threaded holes on the top bracket 1. The fixed rod 11 and the top bracket 1 are connected and fixed by screws 12. Anti-collision foam sleeves 13 are detachably connected to both the top bracket 1 and the fixed rod 11. The bottom bracket and the top bracket 1 are connected by three telescopic rods 4. The bottom bracket 2 is in a rectangular structure. Support rods 21 are fixedly connected to the bottoms of the four corner points of the bottom bracket 2. Universal wheels 22 are connected to the bottoms of the four support rods 21. Fixing blocks 23 are connected to the sides of the four support rods 21. Ground-gripping nails 24 are connected to the fixing blocks 23 through threads. The ground-gripping nails 24 penetrate through the fixing blocks 23. Friction blocks 25 are fixedly connected to the bottoms of the ground-gripping nails 24. The support rods 21 are connected to the bottom bracket 2 through stabilizing rods 6. The bottom bracket 2, the stabilizing rods 6 and the support rods 21 form a triangular structure. A cross bar 5 is fixedly connected inside the bottom bracket 2. The cross bar 5 is connected to the treadmill assembly 3. Fixing plates 31 are fixedly connected to both sides of the cross bar 5. A central turntable 32 is rotatably connected between the two fixing plates 31. The rotating shafts on both sides of the central turntable 32 penetrate through the fixing plates 31. The rotating shafts on both sides of the central turntable 32 are coaxially connected to one end of a pedal rod 33. The other end of the pedal rod 33 is rotatably connected to a foot pedal 34. The pedal rod 33 is a telescopic rod 4 with adjustable length. Anti-slip lines are provided inside the foot pedal 34. Foam pads 341 are connected to both the inner and outer sides of the foot pedal 34. Two fixed adhesive tapes 342 for fixing the sole of the foot are connected to the foot pedal 34. An adjustment knob 35 is connected to the cross bar 5 through threads. The adjustment knob 35 penetrates through the cross bar 5. The bottom of the adjustment knob 35 is movably connected to an arc-shaped block 36. Three magnets 37 are connected to the bottom of the arc-shaped block 36. The top of the arc-shaped block 36 is connected to the cross bar 5 through a spring. The arc-shaped block 36 is located above the central turntable 32.
[0022] The specific implementation process is as follows: first, the universal wheel 22 can be used to move the entire device. After the device moves, the gripping nail 24 on the side of the support rod 21 is rotated, and the gripping nail 24 moves downward, so that the friction block 25 contacts the ground, and the friction force is used to stabilize the device. Then, the patient steps on the foot pedal 34 with both feet, and the position of the fixed rod 11 and the height of the telescopic rod 4 are adjusted according to the patient's body shape and height. The fixed rod 11 is connected and fixed to the top bracket 1 by the screw 12 to prevent the patient from falling. The pedal rod 33 can also be adjusted according to the patient's leg length. After the patient places the sole of the foot in the foot pedal (34), the sole of the foot is fixed with the adhesive fixing belt 342. Finally, according to the patient's condition, the adjustment knob 35 is turned to adjust the distance between the arc block 36 and the center turntable 32. The closer the distance between the arc block 36 and the center turntable 32 is, the greater the resistance is. Conversely, the farther the distance is, the smaller the resistance is. After the adjustment is completed, the patient can start training.
[0023] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A lower limb active hip and knee flexion training device, characterized in that: It includes a top bracket (1), a bottom bracket (2), a fixing rod (11) and a treadmill assembly (3). The top bracket (1) is in a "C" - shaped structure. There are several threaded holes symmetrically arranged on both sides of the top bracket (1). Threaded holes are also arranged on both sides of the fixing rod (11). The fixing rod (11) and the top bracket (1) are connected and fixed by screws (12). The top bracket (1) and the bottom bracket (2) are connected by three telescopic rods (4). The bottom bracket (2) is in a rectangular structure. Support rods (21) are connected to the bottoms of the four corner points of the bottom bracket (2). Universal wheels (22) are connected to the bottoms of the support rods (21). Fixed blocks (23) are connected to the sides of the support rods (21). The fixed blocks (23) are thread - connected with ground - gripping nails (24). The ground - gripping nails (24) pass through the fixed blocks (23). Friction blocks (25) are connected to the bottoms of the ground - gripping nails (24). A cross - bar (5) is connected inside the bottom bracket (2). The cross - bar (5) is connected to the treadmill assembly (3). The treadmill assembly (3) includes fixing plates (31) connected to both sides of the cross - bar (5). A central turntable (32) is rotatably connected between the two fixing plates (31). Pedal rods (33) are coaxially connected to both sides of the central turntable (32). One end of the pedal rod (33) is coaxially connected to the central turntable (32), and the other end is rotatably connected to a foot pedal (34). An adjusting knob (35) is thread - connected inside the cross - bar (5). An arc - shaped block (36) is movably connected to the bottom of the adjusting knob (35). Several magnets (37) are connected to the bottom of the arc - shaped block (36). The arc - shaped block (36) is located above the central turntable (32).
2. The lower limb active hip and knee flexion training device according to claim 1, characterized in that: Anti - knock foam sleeves (13) are detachably connected to the top bracket (1) and the fixing rod (11).
3. The lower limb active hip and knee flexion training device according to claim 1, characterized in that: A stabilizing rod (6) is connected between the support rod (21) and the bottom bracket (2). The stabilizing rod (6), the bottom bracket (2) and the support rod (21) form a triangular stable structure.
4. The lower limb active hip and knee flexion training device according to claim 1, characterized in that: The pedal rod (33) is an adjustable telescopic rod.
5. The lower limb active hip and knee flexion training device according to claim 1, characterized in that: Anti - slip patterns are provided inside the foot pedal (34).
6. The lower limb active hip and knee flexion training device according to claim 1, characterized in that: The top of the arc - shaped block (36) is connected to the cross - bar (5) by a spring.
7. The lower limb active hip and knee flexion training device according to claim 1, characterized in that: Foam pads (341) are connected to both the inner and outer sides of the foot pedal (34).
8. The lower limb active hip and knee flexion training device according to claim 1, characterized in that: A fixing adhesive tape (342) for fixing the sole of the foot is connected to the foot pedal (34).