A hand-grasping training device for hemiplegic patients

Abstract

This utility model relates to the technical field of hand grasping training devices, and discloses a hand grasping training device for hemiplegic patients. It includes a training table, with a rubber pad fixedly connected inside. A support block is fixedly connected to the top of the training table, and a grip ball is disposed inside the support block. A hollow column is fixedly connected to the outer wall of the support block, and a disassembly assembly is disposed inside the hollow column. The disassembly assembly includes a locking pin, which is slidably connected inside the hollow column. A connecting rod is fixedly connected to the outer wall of the locking pin, and an L-shaped groove is formed on the outer wall of the hollow column. In this utility model, through the sliding cooperation of the locking pin, connecting rod, and L-shaped groove in the disassembly assembly, the locking pin moves within the hollow column, allowing for the replacement of grip balls of different sizes according to the patient's hand size. This achieves personalized training, solves the problem that traditional training devices cannot meet the needs of different patient hand sizes, and improves the applicability of the training device.

Description

Technical Field

[0001] This utility model relates to the technical field of hand grasping training devices, and in particular to a hand grasping training device for hemiplegic patients. Background Technology

[0002] Impaired hand grasping function in hemiplegic patients is a common sequela of stroke, severely affecting their daily living abilities and rehabilitation prognosis. Current clinical rehabilitation medicine research shows that early intervention with scientific grasping training can effectively promote neuroplasticity reorganization and improve hand motor function. Traditional hand grasping rehabilitation training mainly relies on one-on-one assistance from therapists or simple device training, but it suffers from problems such as insufficient training intensity and poor individualized adaptation. With the development of rehabilitation medicine and assistive technology, new technologies such as functional electrical stimulation and robot-assisted training are gradually being applied in clinical practice. However, these devices are often bulky and expensive, making it difficult to popularize them in community and home rehabilitation. Therefore, developing a grasping training device that is simple in structure, low in cost, and can adapt to the needs of different patients has important clinical significance and social value.

[0003] Most existing hand grip training devices adopt fixed mechanical structures, such as spring resistance grippers, adjustable tension bands, or modular assembly trainers. Their technical principle is mainly based on the mechanical feedback mechanism, which provides resistance through preset elastic elements such as springs or rubber bands. Patients achieve muscle strength training by repeatedly gripping to resist the resistance.

[0004] The main problem with existing technologies is that training devices cannot adapt to the differences in hand size among different patients. Due to significant individual differences in the degree of hand spasticity, joint range of motion, and muscle atrophy among hemiplegic patients, fixed-size gripping components can lead to abnormal grasping posture or insufficient training intensity. For example, patients with smaller hands may find it difficult to fully wrap their hands with a large gripping ball, while patients with larger hands may not be able to achieve an effective training load when using a small gripping ball. To address this issue, a hand grasping training device for hemiplegic patients is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a hand grasping training device for hemiplegic patients, which aims to improve the problem that the existing technology cannot meet the needs of different patients with different hand sizes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hand-grip training device for hemiplegic patients includes a training table, a rubber pad fixedly connected inside the training table, a support block fixedly connected to the top of the training table, a grip ball disposed inside the support block, a hollow column fixedly connected to the outer wall of the support block, and a disassembly assembly disposed inside the hollow column.

[0008] The disassembly assembly includes a locking post, which is slidably connected inside the hollow post. A connecting rod is fixedly connected to the outer wall of the locking post. An L-shaped groove is formed on the outer wall of the hollow post, and the connecting rod is slidably connected inside the L-shaped groove. A sliding disc is fixedly connected to the outer wall of the locking post, and an elastic component is provided on the outer wall of the locking post. A limit component is provided inside the training platform.

[0009] As a further description of the above technical solution:

[0010] The grip ball is attached to the support block, and a finger positioning frame is fixedly connected to the bottom of the grip ball.

[0011] As a further description of the above technical solution:

[0012] The locking pin is slidably connected to the inner wall of the support block, and one end of the locking pin engages with the inside of the grip ball.

[0013] As a further description of the above technical solution:

[0014] The elastic component includes a spring, one end of which is fixedly connected to the side wall of the sliding disc, and the other end of which is fixedly connected to the inner wall of the hollow column.

[0015] As a further description of the above technical solution:

[0016] The limiting component includes a clamp, which is slidably connected inside the training platform.

[0017] As a further description of the above technical solution:

[0018] The top of the training platform is fixedly connected to a support block two, and a sliding column is slidably connected inside the support block two.

[0019] As a further description of the above technical solution:

[0020] One end of the sliding column is fixedly connected to the outer wall of the clamp, and an L-shaped groove is fixedly connected to the outer wall of the sliding column. A limit plate is fixedly connected to one end of the sliding column.

[0021] As a further description of the above technical solution:

[0022] The outer wall of the sliding column is fitted with a second spring. One end of the second spring is fixedly connected to the side wall of the L-shaped groove, and the other end of the second spring is fixedly connected to the side wall of the second support block.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by sliding the locking post, connecting rod and L-shaped groove in the disassembly assembly, the locking post is moved inside the hollow column. Then, by the elastic force of the spring, the locking post is reset and engaged with the inside of the grip ball, so that the grip ball can be quickly disassembled and installed. Different sizes of grip balls can be replaced according to the size of the patient's hand, thereby achieving the effect of personalized training. This solves the problem that traditional training devices cannot meet the needs of different patients' hand sizes and improves the applicability of the training device.

[0025] 2. In this utility model, through the cooperation of the clamp, sliding column and spring two in the limiting component, the elastic force of spring two drives the sliding column to move, thereby driving the clamp to slide in the training table to limit the patient's arm. When the patient's arm is subjected to external force, spring two provides cushioning to prevent the arm from accidentally slipping off, thereby achieving the effect of safety protection, solving the problem of the patient's arm easily slipping off during rehabilitation training and causing secondary trauma, and improving the safety of the training process. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a hand-grasping training device for hemiplegic patients proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the grip ball structure of a hand-grip training device for hemiplegic patients proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the clamp structure of a hand-gripping training device for hemiplegic patients proposed in this utility model.

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Training table; 2. Rubber mat; 3. Support block one; 4. Grip ball; 5. Support block two; 6. Clamp; 7. Locking post; 8. Hollow post; 9. Connecting rod; 10. Sliding plate; 11. Spring one; 12. L-shaped groove; 13. Sliding post; 14. Spring two; 15. Limiting plate; 16. Finger positioning frame. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-5 An embodiment of this utility model provides a hand grasping training device for hemiplegic patients, including a training table 1. A rubber pad 2 is fixedly connected inside the training table 1. The rubber pad 2 is used to increase the comfort of the patient's arm when it is placed and to prevent slippage. A support block 3 is fixedly connected to the top of the training table 1. The support block 3 is used to fix a grip ball 4 and provide a support structure. The grip ball 4 is set inside the support block 3. The grip ball 4 is used for the patient's grasping training to restore hand muscle strength. A hollow column 8 is fixedly connected to the outer wall of the support block 3. The hollow column 8 is used to accommodate the disassembly assembly and provide a guiding function. The disassembly assembly is set inside the hollow column 8. The disassembly assembly is used to quickly replace grip balls 4 of different sizes to adapt to the size of the patient's palm.

[0035] The disassembly assembly includes a locking post 7, which engages with the inside of the grip ball 4 for fixation. The locking post 7 is slidably connected inside the hollow column 8. A connecting rod 9 is fixedly connected to the outer wall of the locking post 7 for manual operation of the movement of the locking post 7. An L-shaped groove 12 is provided on the outer wall of the hollow column 8 to limit the movement trajectory of the connecting rod 9 to achieve locking and unlocking of the locking post 7. The connecting rod 9 is slidably connected inside the L-shaped groove 12. A sliding disc 10 is fixedly connected to the outer wall of the locking post 7 to enhance the stability of the locking post 7 and work in conjunction with the elastic component. An elastic component is provided on the outer wall of the locking post 7 to provide elastic force for the locking post 7 to reset and achieve automatic engagement. A limit component is provided inside the training table 1 to fix the patient's arm to prevent slippage during training.

[0036] Reference Figures 1-5The grip ball 4 is attached to the support block 3. The grip ball 4 provides the target object for grip training, and the support block 3 stabilizes the position of the grip ball 4. A finger positioning frame 16 is fixedly connected to the bottom of the grip ball 4. The finger positioning frame 16 guides the patient's finger placement to standardize the grip posture. The locking post 7 is slidably connected to the inner wall of the support block 3. The locking post 7 is used to lock or release the grip ball 4 for quick replacement. One end of the locking post 7 engages with the inside of the grip ball 4. This structure ensures that the grip ball 4 remains stable during training. The elastic component includes a spring 11. The spring 11 provides the elastic force for the locking post 7 to automatically return. One end of the spring 11 is fixedly connected to the side wall of the sliding plate 10. The sliding plate 10 expands the force-bearing area to make the spring 11 act more smoothly. The other end of the spring 11 is fixedly connected to the inner wall of the hollow column 8. This connection method ensures the stability of the elastic force direction. The limiting component includes a clamp 6. The clamp 6 is used to wrap around and fix the patient's arm to prevent displacement during training. The clamp 6 is slidably connected inside the training table 1. The moving connection allows the clamp 6 to adapt to different arm circumferences. A support block 2 5 is fixedly connected to the top of the training platform 1. The support block 2 5 is used to install and guide the moving parts of the limiting assembly. A sliding column 13 is slidably connected inside the support block 2 5. The sliding column 13 is used to transmit the movement of the clamp 6 and bear the spring force. One end of the sliding column 13 is fixedly connected to the outer wall of the clamp 6. This connection ensures that the clamp 6 and the sliding column 13 move synchronously. An L-shaped groove 12 is fixedly connected to the outer wall of the sliding column 13. The L-shaped groove 12 is used to limit the movement stroke of the sliding column 13. A limiting plate 15 is fixedly connected to one end of the sliding column 13. The limiting plate 15 is used to prevent the sliding column 13 from falling out of the support block 2 5. A spring 2 14 is sleeved on the outer wall of the sliding column 13. The spring 2 14 is used to provide the clamp 6 with buffering force and restoring force. One end of the spring 2 14 is fixedly connected to the side wall of the L-shaped groove 12. This connection point determines the working position of the spring 2 14. The other end of the spring 2 14 is fixedly connected to the side wall of the support block 2 5. This structure ensures that the spring 2 14 can stably apply elastic force.

[0037] Working principle: When using this hand-grip training device for hemiplegic patients, the training platform 1 serves as the basic support structure. The rubber pad 2 fixedly connected inside provides cushioning and anti-slip properties. The support block 3 fixedly connected at the top supports the grip ball 4, which fits snugly against the support block 3. The finger positioning frame 16 fixedly connected at the bottom assists the patient in positioning their fingers. When the grip ball 4 needs to be replaced, the disassembly assembly comes into play. Pulling the connecting rod 9 causes the locking pin 7 to slide inside the hollow column 8, as it is slidably connected to the L-shaped groove 12 on the outer wall of the hollow column 8. This causes the locking pin 7 to slide inside the hollow column 8. At this time, the sliding disc 10 fixedly connected to the outer wall of the locking pin 7 compresses the spring 11, causing one end of the locking pin 7 to detach from the grip ball 4, allowing the grip ball 4 to be removed. After replacing the grip ball 4, release the connecting rod 9, and the spring 11 will release the grip ball 4. One end of the 11 is fixedly connected to the side wall of the sliding disc 10, and the other end is fixedly connected to the inner wall of the hollow column 8. Under the elastic force, the locking column 7 is reset and re-locked into the grip ball 4, completing the replacement. When the patient performs grip training, the limiting component starts to work. The sliding column 13 is slidably connected inside the support block 2 5 fixedly connected to the top of the training table 1. One end of the sliding column 13 is fixedly connected to the outer wall of the clamp 6. One end of the spring 2 14 sleeved on the outer wall is fixedly connected to the side wall of the L-shaped groove 12, and the other end is fixedly connected to the side wall of the support block 2 5. The elastic force of the spring 2 14 pushes the sliding column 13, thereby driving the clamp 6 to slide inside the training table 1, limiting the patient's arm in a suitable position. When the patient's arm is accidentally subjected to external force during training, the spring 2 14 is compressed, providing cushioning for the arm and preventing the arm from slipping.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for training the hand grip of a hemiplegic patient, comprising a training table (1), characterized in that: The training platform (1) is fixedly connected to a rubber pad (2), and a support block (3) is fixedly connected to the top of the training platform (1). A grip ball (4) is installed inside the support block (3), and a hollow column (8) is fixedly connected to the outer wall of the support block (3). A disassembly assembly is installed inside the hollow column (8). The disassembly assembly includes a locking post (7), which is slidably connected inside the hollow column (8). A connecting rod (9) is fixedly connected to the outer wall of the locking post (7). An L-shaped groove (12) is opened on the outer wall of the hollow column (8). The connecting rod (9) is slidably connected inside the L-shaped groove (12). A sliding disc (10) is fixedly connected to the outer wall of the locking post (7). An elastic component is provided on the outer wall of the locking post (7). A limit component is provided inside the training platform (1).

2. The hand training device for hemiplegic patients according to claim 1, wherein: The grip ball (4) is attached to the support block (3), and a finger frame (16) is fixedly connected to the bottom of the grip ball (4).

3. The hand training device for hemiplegic patients according to claim 1, wherein: The locking post (7) is slidably connected to the inner wall of the support block (3), and one end of the locking post (7) is engaged with the inside of the grip ball (4).

4. The hand training device for hemiplegic patients according to claim 1, wherein: The elastic component includes a spring (11), one end of which is fixedly connected to the side wall of the sliding disk (10), and the other end of which is fixedly connected to the inner wall of the hollow column (8).

5. The hand grasp training device for hemiplegic patients according to claim 1, wherein: The limiting component includes a clamp (6), which is slidably connected inside the training platform (1).

6. The hand training device for hemiplegic patients according to claim 5, wherein: The training platform (1) is fixedly connected to a support block two (5) at the top, and a sliding column (13) is slidably connected inside the support block two (5).

7. The hand training device for hemiplegic patients according to claim 6, wherein: One end of the sliding column (13) is fixedly connected to the outer wall of the clamp (6), and an L-shaped groove (12) is fixedly connected to the outer wall of the sliding column (13). One end of the sliding column (13) is fixedly connected to a limiting plate (15).

8. The hand training device for hemiplegic patients according to claim 7, wherein: The outer wall of the sliding column (13) is fitted with a second spring (14). One end of the second spring (14) is fixedly connected to the side wall of the L-shaped groove (12), and the other end of the second spring (14) is fixedly connected to the side wall of the second support block (5).

Images