Hand function recovery grip strength trainer

By introducing an opening and closing mechanism and a sensor chamber structure into the grip strength trainer, the problem of not being able to display the grip strength of a single finger in existing technologies has been solved, enabling independent detection of the grip strength of a single finger and the overall grip strength, thus improving the accuracy and comfort of training.

CN223542394UActive Publication Date: 2025-11-14THE FIRST AFFILIATED HOSPITAL OF QIQIHAR MEDICAL UNIV
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Patent Information

Application Number
CN202422773321.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-11-14
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

In the existing technology, grip strength trainers cannot display the grip strength of a single finger after training; they can only display the overall grip strength of the hand, which cannot meet the training needs of patients with injuries to the joints of a single finger.

Method used

A hand function recovery grip strength trainer was designed, comprising a grip strength trainer body, a grip strength training socket, a sliding chamber, a grip strength squeezing block, an upper sensing chamber, and a lower sensing chamber. The opening and closing mechanism enables separate detection of individual finger and overall grip strength, and the results are displayed using a whole fist grip strength display screen and a single finger grip strength display screen.

Benefits of technology

It enables independent testing of individual finger and overall grip strength, improving the accuracy and comfort of training and meeting the training needs of different patients.

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Abstract

The utility model relates to the technical field of medical instruments, and provides a hand function recovery grip strength training device which comprises a hand-muscle developer body, a hand-muscle developer base is arranged at the bottom of the hand-muscle developer body, and a grip strength training insertion hole is formed in the hand-muscle developer body. A sliding bin is formed in the position, located in the hand-muscle developer base, of the lower portion of the grip strength training inserting hole, a grip strength extrusion block is connected into the sliding bin in an inserted mode, and an upper induction bin is formed in the position, located below the hand-muscle developer base, of the bottom of the grip strength extrusion block; by means of the upper induction bin, when the opening and closing mechanism at the bottom is closed, a user can hold, grasp and press the grip strength extrusion block to extrude the sliding bin, air in the upper induction bin is detected through the upper induction bin, and different grip strength values formed by all fingers can be detected.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a hand function recovery grip strength trainer. Background Technology

[0002] Grip strengtheners, also known as arm grippers, hand grippers, finger grippers, or force meters, primarily stimulate the muscles of the hand and forearm through repetitive grasping movements, enhancing their strength and endurance. These training methods not only improve grip strength but also enhance the stability of the arm and shoulder, strengthening the overall upper limb. Through continuous training, they can effectively improve hand grip strength, improve hand function, and also help some patients recover their hand function.

[0003] A search revealed an existing patent (CN 210448005 U) that discloses a hand function recovery grip strength trainer. Its features include an elastic sphere with several indentations for finger gripping. Patients can hold the sphere in their palm and place their fingertips into the indentations for grip strength training. As an improvement, the sphere is equipped with a measuring display device for sensing and displaying the grip strength value. This device senses the pressure applied to the sphere and provides feedback. As another improvement, the measuring display device includes a sensing cavity inside the sphere and a sliding hole on the sphere; one end of the sliding hole is connected to the sensing cavity, and the other end is open to the atmosphere; a sliding cylinder capable of sliding back and forth along the sliding hole is disposed within the sliding hole; an elastic air bladder is disposed behind the sliding cylinder, and the air bladder communicates with the sensing cavity. When the patient applies pressure to the sphere, the sensing cavity contracts, squeezing gas into the air bladder, causing the air bladder to inflate. The expansion of the air bladder pushes the sliding cylinder from back to front. The pressure can be determined by the displacement of the slide tube. This utility model, a hand function recovery grip strength trainer with the above-described structure, can train the grip strength of the patient's hand, which helps to promote the patient's functional recovery. This trainer uses a simple structure to achieve the training function and can sense pressure and provide feedback. It is inexpensive, has a low failure rate, and does not require additional batteries or other power supplies, making it economical, convenient, and applicable.

[0004] However, in the above-mentioned scheme, patients can usually use their whole fingers to exert force when gripping, and the grip strength shown after pressure is only the overall grip strength of the hand. For patients with only finger joints injured, it is not convenient to show the grip strength of individual fingers after training.

[0005] In view of this, the present invention proposes a hand function recovery grip strength trainer. Utility Model Content

[0006] This invention proposes a hand function recovery grip strength trainer, which solves the problem in related technologies that the grip strength displayed after pressure is only the overall grip strength of the hand, and is not convenient for displaying the grip strength of individual fingers after training.

[0007] The technical solution of this utility model is as follows: A hand function recovery grip strength trainer includes a grip strength trainer body; a grip strength trainer base is provided at the bottom of the grip strength trainer body; a grip strength training insertion hole is provided inside the grip strength training insertion hole; a sliding chamber is provided below the grip strength training insertion hole, located inside the grip strength trainer base; a grip strength compression block is inserted and connected inside the sliding chamber; an upper sensing chamber is provided at the bottom of the grip strength compression block, located below the grip strength trainer base; an opening and closing mechanism is provided between the bottom of the upper sensing chamber and the grip strength training insertion hole; a sealing gasket is fixedly connected to the bottom of the grip strength compression block; the edge of the sealing gasket is in contact with the inner wall of the sliding chamber. The sliding mechanism connects the upper and lower sensing chambers. The top of the grip strength unit is equipped with a full fist grip strength display screen. There are five grip strength training holes, and above each of the five grip strength training holes, located on one side of the grip strength unit, is a single-finger grip strength display screen. When the opening and closing mechanism at the bottom is closed, the upper sensing chamber detects the air inside the sliding chamber and the grip strength squeezing block when the hand grips and presses against it. This allows for the detection of different grip strength values ​​formed by each finger. When the opening and closing mechanism is open, the upper and lower sensing chambers are connected, and the lower sensing chamber detects the overall grip strength during grip training.

[0008] Preferably, the opening and closing communication mechanism includes a horizontal slot, a horizontal insert plate, a plug-in connecting plate, a pull ring, an anti-slip sleeve, a plug-in groove, a plug-in tube, and a sealing ring.

[0009] Preferably, a horizontal slot is provided below the upper sensing chamber, inside the gripper body. A horizontal insert plate is inserted into the horizontal slot, and an anti-slip sleeve is fixedly connected to the outside of the horizontal insert plate. The horizontal insert plate and the anti-slip sleeve are located inside the gripper body. A plug-in connecting plate is fixedly connected to one end of the horizontal insert plate, and a pull ring is fixedly connected to the outside of the plug-in connecting plate. The plug-in connecting plate and the pull ring are located outside the gripper body. A palm grip pad is provided on one side of the gripper body. By pulling the pull ring and the plug-in connecting plate to remove the horizontal insert plate and the anti-slip sleeve, the upper sensing chamber and the insertion slot can be connected. This allows the lower sensing chamber to detect the overall grip strength when gripping the gripping compression block. The palm grip pad provides support for the palm during grip strength training, increasing the comfort of grip training.

[0010] Preferably, the transverse insert plate and anti-slip sleeve are adapted to seal the bottom of the upper sensing chamber, and the transverse insert plate, plug-in connecting plate, pull ring and anti-slip sleeve are an insert plate combination that can be inserted into the transverse slot, and the transverse insert plate and anti-slip sleeve restrict the sliding inside the transverse slot.

[0011] Preferably, the top of the grip strengthener base is fixedly connected to a insertion tube, and the bottom of the horizontal slot is provided with an insertion slot located inside the grip strengthener body. The insertion tube is adapted to be inserted into the inside of the insertion slot. The insertion tube connects the insertion slot and the lower sensing chamber. The top of the insertion tube is fixedly connected to a sealing ring. The outer wall of the sealing ring fits against the inner wall of the insertion slot. The sealing ring can seal the insertion slot and ensure the accuracy of the detected air pressure.

[0012] Preferably, the sliding chamber, upper sensing chamber, horizontal slot, insertion slot, insertion tube, and lower sensing chamber are interconnected when the horizontal insert plate is partially withdrawn from the horizontal slot.

[0013] Preferably, a second anti-slip pad is fixedly connected to the bottom of the grip strengthener base, and a first anti-slip pad is fixedly connected to the top of the grip compression block. The second anti-slip pad can prevent the device from sliding when it is placed on a table, and the first anti-slip pad can ensure that the fingers are more stable when holding it.

[0014] Preferably, the whole fist grip strength display screen is electrically connected to the detection output terminal of the lower sensing chamber, and the single finger grip strength display screen is electrically connected to the detection output terminal of the upper sensing chamber. The whole fist grip strength display screen and the single finger grip strength display screen can detect the overall grip strength and the single finger grip strength respectively during grip training.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the upper sensing chamber can detect the air inside the upper sensing chamber when the hand gripping and squeezing force squeezing block is closed by the opening and closing mechanism at the bottom. This can detect the different gripping force values ​​formed by each finger. When the opening and closing mechanism is opened, the upper sensing chamber and the lower sensing chamber can be connected. The lower sensing chamber can detect the overall gripping force during gripping training.

[0017] 2. In this utility model, by pulling the pull ring and the plug-in connecting plate to pull out the horizontal insert plate and the anti-slip sleeve, the upper sensing chamber and the insertion slot can be connected. Thus, when gripping the gripping force squeezing block, the lower sensing chamber can detect the overall gripping force. The palm grip pad can support the palm during gripping force training, increasing the comfort of gripping training. The sealing ring can seal the insertion slot to ensure the accuracy of the detected air pressure.

[0018] 3. The second anti-slip pad in this utility model can prevent the device from sliding when it is placed on a table. The first anti-slip pad can ensure that the fingers are more stable when holding it. The whole fist grip strength display screen and the single finger grip strength display screen can detect the whole grip strength and single finger grip strength respectively during grip training. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a frontal three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the rear view of this utility model;

[0022] Figure 3 This is a front view of the internal structure of this utility model;

[0023] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A;

[0024] Figure 5 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0025] In the diagram: 1. Hand gripper body; 2. Hand gripper base; 3. Hand grip training socket; 4. Sliding chamber; 5. Hand grip compression block; 6. Sealing gasket; 7. First anti-slip pad; 8. Upper sensing chamber; 9. Lower sensing chamber; 10. Horizontal slot; 11. Horizontal insert plate; 12. Insertion and removal connecting plate; 13. Pull ring; 14. Anti-slip sleeve; 15. Insertion slot; 16. Insertion tube; 17. Full fist grip strength display; 18. Single finger grip strength display; 19. Palm grip pad; 20. Second anti-slip pad; 21. Sealing ring. Detailed Implementation

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

[0027] Example 1

[0028] A preferred embodiment of the hand function recovery grip strength training device provided by this utility model is, for example... Figures 1 to 5As shown: A hand function recovery grip strength trainer includes a grip strength trainer body 1. A grip strength trainer base 2 is provided at the bottom of the grip strength trainer body 1. A grip strength training socket 3 is provided inside the grip strength trainer body 1. A sliding chamber 4 is provided below the grip strength training socket 3 and inside the grip strength trainer base 2. A grip strength compression block 5 is inserted and connected inside the sliding chamber 4. An upper sensing chamber 8 is provided at the bottom of the grip strength compression block 5 and below the grip strength trainer base 2. An opening and closing mechanism is provided between the bottom of the upper sensing chamber 8 and the grip strength training socket 3. A sealing gasket 6 is fixedly connected to the bottom of the grip strength compression block 5. The edge of the sealing gasket 6 slides against the inner wall of the sliding chamber 4. The opening and closing communication mechanism connects the upper sensing chamber 8 and the lower sensing chamber 9. A full fist grip strength display screen 17 is provided at the top of the grip strength trainer body 1. The number of grip strength training sockets 3 is five. A single finger grip strength display screen 18 is provided above each of the five grip strength training sockets 3 and on one side of the grip strength trainer body 1.

[0029] It should be noted that the existing training devices still have some shortcomings. They can only display the overall grip strength of the hand after pressure is applied, and it is not convenient to display the grip strength of a single finger after training.

[0030] In this embodiment, the upper sensing chamber 8 can detect the air inside the upper sensing chamber 8 when the hand gripping and pressing force squeezing block 5 is squeezed by the lower sensing chamber 9 when the opening and closing mechanism at the bottom is closed. This allows the upper sensing chamber 8 to detect the different gripping force values ​​formed by each finger. When the opening and closing mechanism is opened, the upper sensing chamber 8 and the lower sensing chamber 9 can be connected, and the lower sensing chamber 9 can detect the overall gripping force during gripping training.

[0031] In a further preferred embodiment of the present invention, the opening and closing communication mechanism includes a horizontal slot 10, a horizontal insert plate 11, a plug-in connecting plate 12, a pull ring 13, an anti-slip sleeve 14, a plug-in groove 15, a plug-in tube 16, and a sealing ring 21.

[0032] In a further preferred embodiment of this utility model, a horizontal slot 10 is provided below the upper sensing chamber 8, located inside the gripper body 1. A horizontal insert plate 11 is inserted into the horizontal slot 10. An anti-slip sleeve 14 is fixedly connected to the outside of the horizontal insert plate 11. The horizontal insert plate 11 and the anti-slip sleeve 14 are located inside the gripper body 1. A plug-in connecting plate 12 is fixedly connected to one end of the horizontal insert plate 11. A pull ring 13 is fixedly connected to the outside of the plug-in connecting plate 12. The plug-in connecting plate 12 and the pull ring 13 are located outside the gripper body 1. A palm grip pad 19 is provided on one side of the gripper body 1.

[0033] In this embodiment, by pulling the pull ring 13 and the plug-in connecting plate 12 to pull out the horizontal insert plate 11 and the anti-slip sleeve 14, the upper sensing chamber 8 and the insertion slot 15 can be connected. This allows the lower sensing chamber 9 to detect the overall grip strength when gripping the gripping force squeezing block 5. The palm grip pad 19 can support the palm during grip strength training, increasing the comfort of grip training.

[0034] In a further preferred embodiment of the present invention, the transverse insert plate 11 and the anti-slip sleeve 14 are adapted to seal the bottom of the upper sensing chamber 8. The transverse insert plate 11, the plug-in connecting plate 12, the pull ring 13 and the anti-slip sleeve 14 are a combination of insert plates that can be inserted into the transverse slot 10. The transverse insert plate 11 and the anti-slip sleeve 14 restrict the sliding inside the transverse slot 10.

[0035] Example 2

[0036] Based on Embodiment 1, a preferred embodiment of the hand function recovery grip strength training device provided by this utility model is as follows: Figures 1 to 5 As shown: The top of the grip strengthener base 2 is fixedly connected to the insertion tube 16. The bottom of the horizontal slot 10 is provided with an insertion slot 15 located inside the grip strengthener body 1. The insertion tube 16 is adapted to be inserted into the inside of the insertion slot 15. The insertion tube 16 connects the insertion slot 15 and the lower sensing chamber 9. The top of the insertion tube 16 is fixedly connected to the sealing ring 21. The outer wall of the sealing ring 21 fits against the inner wall of the insertion slot 15.

[0037] In this embodiment, the sealing ring 21 can seal the insertion slot 15, ensuring the accuracy of the detected air pressure.

[0038] In a further preferred embodiment of the present invention, the sliding chamber 4, the upper sensing chamber 8, the horizontal slot 10, the insertion slot 15, the insertion tube 16, and the lower sensing chamber 9 are interconnected when the horizontal insert plate 11 is partially withdrawn from the horizontal slot 10.

[0039] In a further preferred embodiment of the present invention, a second anti-slip pad 20 is fixedly connected to the bottom of the grip strengthener base 2, and a first anti-slip pad 7 is fixedly connected to the top of the grip compression block 5.

[0040] In this embodiment, the second anti-slip pad 20 prevents the device from sliding when it is placed on a table, while the first anti-slip pad 7 ensures that the fingers are more stable when holding it.

[0041] In a further preferred embodiment of this utility model, the full fist grip strength display screen 17 is electrically connected to the detection output terminal of the lower sensing chamber 9, and the single finger grip strength display screen 18 is electrically connected to the detection output terminal of the upper sensing chamber 8.

[0042] In this embodiment, the whole fist grip strength display screen 17 and the single finger grip strength display screen 18 can detect the overall grip strength and single finger grip strength respectively during grip training.

[0043] The working principle of this utility model is as follows: When the bottom opening and closing mechanism is closed, the hand gripping and pressing force squeezing block 5 squeezes the air inside the sliding chamber 4 and the upper sensing chamber 8, which is detected by the upper sensing chamber 8. The different gripping force values ​​formed by each finger are detected. When the opening and closing mechanism is opened, the upper sensing chamber 8 and the lower sensing chamber 9 are connected. Through the lower sensing chamber 9, the overall gripping force is detected during gripping training.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hand function recovery grip strength trainer, characterized in that, The device includes a grip strengthener body (1): a grip strengthener base (2) is provided at the bottom of the grip strengthener body (1), a grip strength training socket (3) is provided inside the grip strengthener body (1), a sliding chamber (4) is provided below the grip strength training socket (3) and inside the grip strengthener base (2), a grip strength compression block (5) is inserted and connected inside the sliding chamber (4), an upper sensing chamber (8) is provided at the bottom of the grip strength compression block (5) and below the grip strengthener base (2), and the bottom of the upper sensing chamber (8) is connected to the grip strength training socket. An opening and closing mechanism is provided between the holes (3). A sealing gasket (6) is fixedly connected to the bottom of the gripping compression block (5). The edge of the sealing gasket (6) slides against the inner wall of the sliding chamber (4). The opening and closing communication mechanism connects the upper sensing chamber (8) and the lower sensing chamber (9). A full fist gripping display screen (17) is provided on the top of the gripping device body (1). The number of gripping training holes (3) is set to five. A single finger gripping display screen (18) is provided above the five gripping training holes (3) on one side of the gripping device body (1).

2. The hand function recovery grip strength trainer according to claim 1, characterized in that, The opening and closing communication mechanism includes a horizontal slot (10), a horizontal insert plate (11), a plug-in connection plate (12), a pull ring (13), an anti-slip sleeve (14), a plug-in slot (15), a plug-in tube (16), and a sealing ring (21).

3. A hand function recovery grip strength trainer according to claim 2, characterized in that, A horizontal slot (10) is provided below the upper sensing chamber (8) and inside the gripper body (1). A horizontal insert plate (11) is inserted into the horizontal slot (10). An anti-slip sleeve (14) is fixedly connected to the outside of the horizontal insert plate (11). The horizontal insert plate (11) and the anti-slip sleeve (14) are located inside the gripper body (1). A plug-in connecting plate (12) is fixedly connected to one end of the horizontal insert plate (11). A pull ring (13) is fixedly connected to the outside of the plug-in connecting plate (12). The plug-in connecting plate (12) and the pull ring (13) are located outside the gripper body (1). A palm grip pad (19) is provided on one side of the gripper body (1).

4. A hand function recovery grip strength trainer according to claim 3, characterized in that, The transverse insert (11) and anti-slip sleeve (14) are adapted to seal the bottom of the upper sensing chamber (8). The transverse insert (11), the plug-in connecting plate (12), the pull ring (13) and the anti-slip sleeve (14) are insert combinations that can be inserted into the transverse slot (10). The transverse insert (11) and anti-slip sleeve (14) restrict the sliding inside the transverse slot (10).

5. A hand function recovery grip strength trainer according to claim 4, characterized in that, The top of the gripper base (2) is fixedly connected to a insertion tube (16). The bottom of the horizontal slot (10) is provided with an insertion slot (15) located inside the gripper body (1). The insertion tube (16) is adapted to be inserted into the inside of the insertion slot (15). The insertion tube (16) connects the insertion slot (15) and the lower sensing chamber (9). The top of the insertion tube (16) is fixedly connected to a sealing ring (21). The outer wall of the sealing ring (21) is in contact with the inner wall of the insertion slot (15).

6. A hand function recovery grip strength trainer according to claim 5, characterized in that, The sliding chamber (4), upper sensing chamber (8), horizontal slot (10), insertion slot (15), insertion tube (16) and lower sensing chamber (9) are interconnected when the horizontal insert plate (11) is partially withdrawn from the horizontal slot (10).

7. A hand function recovery grip strength trainer according to claim 1, characterized in that, The bottom of the gripper base (2) is fixedly connected to a second anti-slip pad (20), and the top of the gripping compression block (5) is fixedly connected to a first anti-slip pad (7).

8. A hand function recovery grip strength trainer according to claim 1, characterized in that, The full fist grip strength display screen (17) is electrically connected to the detection output terminal of the lower sensing chamber (9), and the single finger grip strength display screen (18) is electrically connected to the detection output terminal of the upper sensing chamber (8).

Citation Information

Patent Citations

  • Grip strength trainer for hand function recovery

    CN210448005U