Hand rehabilitation grip strength trainer with pressure feedback

Abstract

The utility model relates to medical instrument technical field discloses a kind of hand rehabilitation grip strength trainers with pressure feedback, including palm fixed plate, the outer wall left side of palm fixed plate is rotatably connected with fixed plate one, the outer wall middle part of fixed plate one is rotatably connected with fixed rod one, the outer wall top of fixed rod one is rotatably connected with fixed plate two, the outer wall left side of fixed plate two is rotatably connected with fixed rod two, the outer wall right side of fixed rod two is fixedly connected with fastening spring one, the outer wall top of fixed rod two is rotatably connected with movable plate one, the outer wall right side of movable plate one is rotatably connected with movable rod one.In the utility model, palm is fixed by palm fixed plate, first by fixed rod one and fixed plate one are rotatably connected, second by fixed rod two rotatably connects fixed plate two, and the outer wall of fixed rod two is fixedly connected with fastening spring one to provide contraction force simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a hand rehabilitation grip strength trainer with pressure feedback. Background Technology

[0002] Hand dysfunction is a common sequela of stroke, spinal cord injury, peripheral neuropathy, and hand trauma. Statistics show that many people worldwide suffer from varying degrees of hand motor dysfunction. Grip strength training, as one of the core methods of hand rehabilitation, directly affects the recovery of patients' daily living abilities. Traditional grip strength training tools have shortcomings such as coarse resistance adjustment, lack of training data, and lack of real-time feedback, making it difficult to meet the needs of modern precision rehabilitation. The hand rehabilitation grip strength trainer with pressure feedback is a new type of device developed in this context, combining sensor technology, intelligent control theory, and the needs of rehabilitation medicine.

[0003] Traditional grips are difficult to accommodate the abnormal anatomy of patients with hand deformities, which may cause pain during training. Furthermore, traditional grips cannot allow movement of every joint in the hand, resulting in poor rehabilitation training effects and limited recovery of the finger joints. Currently, the market uses shape memory alloys and shape memory polymers to make the grip body to solve the problem of grip fixation. By heating or applying electricity, the material shape is changed to conform to the contour of the patient's hand. After cooling, the material maintains a specific shape, providing the patient with a comfortable and conforming grip experience. However, the problem of not being able to fully move the finger joints of the hand has not been solved, which seriously affects the patient's rehabilitation recovery time. Therefore, a hand rehabilitation grip device that allows for full movement of the hand joints is needed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a hand rehabilitation grip strength trainer with pressure feedback, which aims to improve the problem of the inability to move the finger joints in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a hand rehabilitation grip strength trainer with pressure feedback, comprising a palm fixing plate, a fixing plate one rotatably connected to the left side of the outer wall of the palm fixing plate, a fixing rod one rotatably connected to the middle of the outer wall of the fixing plate one, a fixing plate two rotatably connected to the top of the outer wall of the fixing rod one, a fixing rod two rotatably connected to the left side of the outer wall of the fixing plate two, a fastening spring one fixedly connected to the right side of the outer wall of the fixing rod two, a movable plate one rotatably connected to the top of the outer wall of the fixing rod two, a movable rod one rotatably connected to the right side of the outer wall of the movable plate one, a contraction spring two fixedly connected to the middle of the outer wall of the movable rod one, a movable plate two rotatably connected to the top of the outer wall of the movable rod one, a movable rod two rotatably connected to the left side of the outer wall of the movable plate two, a contraction spring one fixedly connected to the right side of the outer wall of the movable rod two, a finger ring sleeve fixedly connected to the lower side of the outer wall of the movable plate two, and a mechanical power generation mechanism provided on the top of the outer wall of the palm fixing plate, the mechanical power generation mechanism converting the mechanical force generated by the device into electricity.

[0006] As a further description of the above technical solution:

[0007] The mechanical power generation mechanism includes a housing. The bottom of the outer wall of the housing is fixedly connected to the top of the outer wall of the palm fixing plate. A magnet is fixedly connected to the bottom of the inner wall of the housing. A threaded sleeve is threadedly connected to the left side of the outer wall of the housing. A threaded rod is threadedly connected to the inner wall of the threaded sleeve. A second fastening spring is fixedly connected to the top of the outer wall of the threaded rod. A second connecting rod is fixedly connected to the top of the second fastening spring. A first connecting rod is fixedly connected to the left side of the outer wall of the second connecting rod. A cutting coil is fixedly connected to the right side of the outer wall of the threaded sleeve. A copper ring is rotatably connected to the right side of the outer wall of the cutting coil.

[0008] As a further description of the above technical solution:

[0009] A fastening plate is fixedly connected to the right side of the outer wall of the palm fixing plate, and a fastening ring is fixedly connected to the bottom of the outer wall of the fastening plate.

[0010] As a further description of the above technical solution:

[0011] A power transmission wire is fixedly connected to the right side of the outer wall of the copper ring, and a numerical meter is fixedly connected to the bottom end of the power transmission wire.

[0012] As a further description of the above technical solution:

[0013] A positive wire is fixedly connected to the right side of the outer wall of the numerical meter, and a negative wire is fixedly connected to the left side of the outer wall of the numerical meter.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the negative electrode wire is fixedly connected to a storage battery, and the top end of the storage battery is fixedly connected to an electrode plate.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the palm fixing plate is fixedly connected to the top of the outer shell, and the inner wall of the finger ring is fixedly connected to anti-slip particles.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the movable plate is rotatably connected to the fastening plate, and the top of the outer wall of the fixed rod is fixedly connected to the fixing block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the palm is fixed by the palm fixing plate. First, the fixing rod one is rotatably connected to the fixing plate one. Then, the fixing rod two is rotatably connected to the fixing plate two. At the same time, the outer wall of the fixing rod two is fixedly connected to the fastening spring one to provide contraction force. Similarly, the movable plate one is rotatably connected through the movable rod one and is contracted through the contraction spring two. Finally, the movable rod two is fixedly connected to the contraction spring one to provide contraction force.

[0022] 2. In this utility model, mechanical force is first transmitted through a pair of connecting rods, and the second connecting rod pulls the second fastening spring. The force provided by the second fastening spring rotates the threaded rod, thereby driving the threaded sleeve to move. The threaded sleeve drives the cutting coil to cut the magnetic field generated by the magnet, and finally generates electricity. Attached Figure Description

[0023] Figure 1 A top perspective view of a hand rehabilitation grip strength trainer with pressure feedback proposed in this utility model;

[0024] Figure 2 A side perspective view of a hand rehabilitation grip strength trainer with pressure feedback proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of a hand rehabilitation grip strength trainer with pressure feedback proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of a hand rehabilitation grip strength trainer with pressure feedback proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of a hand rehabilitation grip strength trainer with pressure feedback proposed in this utility model;

[0028] Figure 6 This is a partial structural diagram of a hand rehabilitation grip strength training device with pressure feedback proposed in this utility model.

[0029] Legend:

[0030] 1. Hand fixing plate; 2. Mechanical power generation mechanism; 201. Housing; 202. Magnet; 203. Cutting coil; 204. Connecting rod one; 205. Connecting rod two; 206. Threaded sleeve; 207. Threaded rod; 208. Fastening spring two; 209. Copper ring; 3. Fixing plate one; 4. Fixing rod one; 5. Fixing plate two; 6. Fixing rod two; 7. Movable rod one; 8. Movable plate one; 9. Movable plate two; 10. Retraction spring one; 11. Retraction spring two; 12. Fastening spring one; 13. Finger ring sleeve; 14. Movable rod two; 15. Numerical gauge; 16. Positive electrode wire; 17. Storage battery; 18. Electrode plate; 19. Fastening ring; 20. Fastening plate one; 21. Anti-slip particles; 22. Outer shell; 23. Negative electrode wire; 24. Power transmission wire; 25. Fixing block; 26. Fastening plate two. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 3 - Appendix Figure 6This utility model provides an embodiment of a hand rehabilitation grip strength trainer with pressure feedback, comprising a palm fixing plate 1, a fixing plate 3 rotatably connected to the left side of the outer wall of the palm fixing plate 1 for fixing, a fixing rod 4 rotatably connected to the middle of the outer wall of the fixing plate 3, a fixing plate 5 rotatably connected to the top of the outer wall of the fixing rod 4 for rotating the connection between the fingers and the palm, a fixing rod 6 rotatably connected to the left side of the outer wall of the fixing plate 5, a fastening spring 12 fixedly connected to the right side of the outer wall of the fixing rod 6 for retraction, and a movable plate 8 rotatably connected to the top of the outer wall of the fixing rod 6. A movable rod 7 is rotatably connected to the right side, which allows the finger joints to rotate. A retraction spring 11 is fixedly connected to the middle of the outer wall of the movable rod 7. A movable plate 9 is rotatably connected to the top of the outer wall of the movable rod 7, which serves as a rotating connection and retraction function. A movable rod 14 is rotatably connected to the left side of the outer wall of the movable plate 9. A retraction spring 10 is fixedly connected to the right side of the outer wall of the movable rod 14, which rotates the finger tail joint. A finger ring sleeve 13 is fixedly connected to the lower side of the outer wall of the movable plate 9, which serves to fix the finger. A mechanical power generation mechanism 2 is provided at the top of the outer wall of the palm fixing plate 1. The mechanical power generation mechanism 2 can convert the mechanical force generated by the device into electricity.

[0033] Specifically, firstly, the fixing plate 2 5 is rotatably connected to the outer wall of the palm fixing plate 1 via the fixing rod 1 4 and the fixing plate 1 3, allowing rotation at the connection between the finger and the palm, and retraction via the fastening spring 1 12. Then, the movable plate 1 8 is rotatably connected to the fixing plate 2 5 via the fixing rod 2 6 and the movable rod 1 7, which allows rotation at the finger joint, and retraction via the retraction spring 2 11. Finally, the movable plate 2 9 is rotatably connected via the movable rod 1 7, allowing rotation at the fingertip joint, and retraction via the retraction spring 1 10.

[0034] Please see the appendix Figure 1 - Appendix Figure 3The mechanical power generation mechanism 2 includes a housing 201. The bottom of the outer wall of the housing 201 is fixedly connected to the top of the outer wall of the palm fixing plate 1. A magnet 202 is fixedly connected to the bottom of the inner wall of the housing 201. Two magnets 202 with different magnetic properties form a magnetic field. A threaded sleeve 206 is threadedly connected to the left side of the outer wall of the housing 201. A threaded rod 207 is threadedly connected to the inner wall of the threaded sleeve 206, which rotates the cutting coil 203. A second fastening spring 208 is fixedly connected to the top of the outer wall of the threaded rod 207. A second connecting rod 205 is fixedly connected to the top of the second fastening spring 208, which provides rotational force for the device. A first connecting rod 204 is fixedly connected to the left side of the outer wall of the second connecting rod 205. A cutting coil 203 is fixedly connected to the right side of the outer wall of the threaded sleeve 206, which cuts the generated magnetic field. A copper ring 209 is rotatably connected to the right side of the outer wall of the cutting coil 203, which absorbs current.

[0035] Specifically, firstly, connecting rod 204 is fixedly connected to the outer wall of movable plate 9, and the mechanical force provided by movable plate 9 is transmitted through connecting rod 205. Then, connecting rod 205 pulls fastening spring 208, and fastening spring 208 provides reciprocating mechanical force to rotate in threaded rod 207 and threaded sleeve 206. Threaded sleeve 206 drives cutting coil 203 to cut the magnetic field formed by magnet 202, thereby forming current. Finally, the current is transferred through copper ring 209.

[0036] Please see the appendix Figure 2 - Appendix Figure 5 A fastening plate 20 is fixedly connected to the right side of the outer wall of the palm fixing plate 1. A fastening ring 19 is fixedly connected to the bottom of the outer wall of the fastening plate 20, which serves to fix the arm. A power transmission wire 24 is fixedly connected to the right side of the outer wall of the copper ring 209. A digital meter 15 is fixedly connected to the bottom end of the power transmission wire 24. The power generated by the power transmission wire 24 supplies power to the digital meter 15. A positive wire 16 is fixedly connected to the right side of the outer wall of the digital meter 15, and a negative wire 23 is fixedly connected to the left side of the outer wall of the digital meter 15, which serves to transmit current.

[0037] Specifically, the arm is fixed by fastening plate 20 and fastening ring 19, the power transmission line 24 can transmit current to the value meter 15, and the current is split by positive wire 16 and negative wire 23.

[0038] Please see the appendix Figure 1 - Appendix Figure 3The bottom end of the negative electrode wire 23 is fixedly connected to the storage battery 17, and the top end of the storage battery 17 is fixedly connected to the electrode plate 18 to store excess current. The top of the outer wall of the palm fixing plate 1 is fixedly connected to the outer shell 22, and the inner wall of the finger ring sleeve 13 is fixedly connected to the anti-slip particles 21 to prevent the device from falling off. The outer wall of the movable plate 1 8 is rotatably connected to the fastening plate 26, and the top of the outer wall of the fixing rod 1 4 is fixedly connected to the fixing block 25 to serve as a fixed connection.

[0039] Specifically, the current transmitted between the fastening plate 26 and the storage battery 17 is stored in the storage battery 17 through the negative electrode wire 23. At the same time, anti-slip particles 21 are fixedly connected in the ring sleeve 13 to play an anti-slip role, and the fastening plate 26 is used to fix the connection of each movable plate.

[0040] Working principle: When hand rehabilitation training is needed, the arm can be placed in the palm fixation plate 1. The left side of the outer wall of the palm fixation plate 1 is rotatably connected to the fixation plate 3. The fixation plate 3 rotates through the fixation rod 4. The top of the outer wall of the fixation rod 4 is rotatably connected to the fixation plate 5. The outer wall of the fixation plate 5 is fixedly connected to the fastening spring 12. The fixation plate 5 is rotatably connected to the movable plate 8 through the fixation rod 6, so as to achieve local bending. Similarly, the movable plate 8 is rotatably connected to the movable plate 9 through the movable rod 7, so as to achieve local bending. Multiple similar devices are rotatably connected to the outer wall of the palm fixation plate 1 to achieve bending of the finger joints and better achieve hand rehabilitation.

[0041] The force provided during rehabilitation training is transmitted to the second spring 208 via the connecting rod 204 and the fastening spring 208. A threaded rod 207 is fixedly connected to the bottom of the second spring 208. A threaded sleeve 206 is threadedly connected to the outer wall of the threaded rod 207. A cutting coil 203 is fixedly connected to the bottom of the threaded sleeve 206. When the second spring 208 is subjected to force, it pulls the threaded rod 207 to move. The threaded rod 207 drives the threaded sleeve 206 to rotate, causing the cutting coil 203 to rotate in the magnet 202. The cutting coil 203 cuts the magnetic field generated by the magnet 202, thus playing a role in mechanical power generation.

[0042] 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 hand rehabilitation grip strength trainer with pressure feedback, comprising a palm fixing plate (1), characterized in that: The left side of the outer wall of the palm fixing plate (1) is rotatably connected to a fixing plate one (3), the middle of the outer wall of the fixing plate one (3) is rotatably connected to a fixing rod one (4), the top of the outer wall of the fixing rod one (4) is rotatably connected to a fixing plate two (5), the left side of the outer wall of the fixing plate two (5) is rotatably connected to a fixing rod two (6), the right side of the outer wall of the fixing rod two (6) is fixedly connected to a fastening spring one (12), the top of the outer wall of the fixing rod two (6) is rotatably connected to a movable plate one (8), the right side of the outer wall of the movable plate one (8) is rotatably connected to a movable rod one (7), and the... A second retraction spring (11) is fixedly connected to the middle of the outer wall of the first movable rod (7). A second movable plate (9) is rotatably connected to the top of the outer wall of the first movable rod (7). A second movable rod (14) is rotatably connected to the left side of the outer wall of the second movable plate (9). A first retraction spring (10) is fixedly connected to the right side of the outer wall of the second movable rod (14). A finger ring sleeve (13) is fixedly connected to the lower side of the outer wall of the second movable plate (9). A mechanical power generation mechanism (2) is provided on the top of the outer wall of the palm fixing plate (1). The mechanical power generation mechanism (2) can convert the mechanical force generated by the device into electricity.

2. The hand rehabilitation grip strength trainer with pressure feedback according to claim 1, characterized in that: The mechanical power generation mechanism (2) includes a housing (201). The bottom of the outer wall of the housing (201) is fixedly connected to the top of the outer wall of the palm fixing plate (1). A magnet (202) is fixedly connected to the bottom of the inner wall of the housing (201). A threaded sleeve (206) is threadedly connected to the left side of the outer wall of the housing (201). A threaded rod (207) is threadedly connected to the inner wall of the threaded sleeve (206). A second fastening spring (208) is fixedly connected to the top of the outer wall of the threaded rod (207). A second connecting rod (205) is fixedly connected to the top of the second fastening spring (208). A first connecting rod (204) is fixedly connected to the left side of the outer wall of the second connecting rod (205). A cutting coil (203) is fixedly connected to the right side of the outer wall of the threaded sleeve (206). A copper ring (209) is rotatably connected to the right side of the outer wall of the cutting coil (203).

3. The hand rehabilitation grip strength trainer with pressure feedback according to claim 1, characterized in that: A fastening plate (20) is fixedly connected to the right side of the outer wall of the palm fixing plate (1), and a fastening ring (19) is fixedly connected to the bottom of the outer wall of the fastening plate (20).

4. The hand rehabilitation grip strength trainer with pressure feedback according to claim 2, characterized in that: A power transmission wire (24) is fixedly connected to the right side of the outer wall of the copper ring (209), and a numerical table (15) is fixedly connected to the bottom end of the power transmission wire (24).

5. The hand rehabilitation grip strength trainer with pressure feedback according to claim 4, characterized in that: A positive electrode wire (16) is fixedly connected to the right side of the outer wall of the numerical table (15), and a negative electrode wire (23) is fixedly connected to the left side of the outer wall of the numerical table (15).

6. The hand rehabilitation grip strength trainer with pressure feedback according to claim 5, characterized in that: The bottom end of the negative electrode wire (23) is fixedly connected to a storage battery (17), and the top end of the storage battery (17) is fixedly connected to an electrode plate (18).

7. The hand rehabilitation grip strength trainer with pressure feedback according to claim 1, characterized in that: The outer wall of the palm fixing plate (1) is fixedly connected to the top of the outer shell (22), and the inner wall of the finger ring sleeve (13) is fixedly connected to the anti-slip particles (21).

8. The hand rehabilitation grip strength trainer with pressure feedback according to claim 1, characterized in that: The outer wall of the movable plate one (8) is rotationally connected with a fastening plate two (26), and the outer wall top of the fixed rod one (4) is fixedly connected with a fixed block (25).

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