A shoulder joint trainer

Abstract

This utility model relates to a shoulder joint trainer, including a positioning mechanism, a shoulder ladder assembly, and a gripping assembly. The positioning mechanism includes a first surface and a second surface along its thickness direction. Along the height direction of the positioning mechanism, the first surface has a plurality of fasteners arranged in an array, and the second surface is used to fit against a wall. The shoulder ladder assembly is detachably connected to the positioning mechanism. The shoulder ladder assembly includes a third surface and a fourth surface along its thickness direction, with the third surface opposite to the first surface. The third surface is provided with a connector adapted to the fasteners. When the fasteners and connectors are connected, the shoulder ladder assembly is fixed to the positioning mechanism. The gripping assembly is slidably connected to the shoulder ladder assembly. This utility model can connect the connectors to fasteners of different heights. For patients in the early stages of rehabilitation, the trainer can be adjusted to a lower position to easily complete basic lifting movements. As the recovery progresses, the height can be gradually increased to increase the training difficulty.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a shoulder joint trainer. Background Technology

[0002] With changes in modern lifestyles and the increasing aging population, the incidence of shoulder joint diseases and injuries is rising year by year. Rotator cuff tears, frozen shoulder, and post-operative rehabilitation of the shoulder joint are troubling a large number of patients. Effective rehabilitation training is crucial for restoring shoulder joint range of motion, muscle strength, and joint function. Currently, shoulder joint rehabilitation training mainly relies on traditional manual therapy, physical therapy, and simple equipment assistance. While manual therapy can provide personalized guidance, it requires a high level of professional expertise from the therapist and suffers from unstable training intensity and low efficiency. Physical therapy equipment such as electrotherapy and thermotherapy devices can only assist in relieving pain and cannot achieve active rehabilitation training. Some existing shoulder joint rehabilitation devices on the market have simple structural designs, making it difficult to accurately adjust training intensity and range of motion, which can easily lead to overtraining or undertraining, affecting rehabilitation outcomes. Some devices are complex to operate, requiring a high level of adaptability from patients, causing fear and resistance, and affecting training compliance. Furthermore, most traditional rehabilitation devices lack visual data feedback, making it difficult to accurately assess the rehabilitation progress and hindering the development of scientific rehabilitation plans.

[0003] Authorization Announcement No.: CN219921949 U, Application Date: April 20, 2023, Utility Model Name: Shoulder Joint Rehabilitation Trainer. This utility model relates to a shoulder joint rehabilitation trainer, including a back plate and finger slots. The back plate has scale markings; the finger slots are cuboid in shape, and there are several finger slots. The finger slots are vertically fixed to the back plate and evenly arranged along the length of the back plate. The height of the finger slots is 2cm, and the spacing between the finger slots is 2cm. This utility model shoulder joint trainer establishes a firm and reliable finger attachment point and can record the exercise effect with scale markings. It maximizes the range of motion of the shoulder joint in flexion, abduction, and elevation, prevents joint adhesion and stiffness, and enhances the patient's confidence in rehabilitation. It is suitable for shoulder joint movement disorders caused by various reasons, post-fracture surgery, and frozen shoulder. It has good effects on improving the upper limb function of disabled people, patients, and the elderly.

[0004] The existing technology involves wedging the fingers into a groove, moving the hand upwards by finger movement to raise the upper limb as high as possible. At the maximum range of motion, the fingers must grip the groove. However, for patients with shoulder injuries, muscle atrophy and nerve damage caused by the injury often result in a significant decrease in hand and finger strength. During training, patients must rely on their fingers to grip the groove to maintain movement; however, their weak hand muscles cannot provide a stable grip, making it easy for the hand to slip during training and difficult to complete rehabilitation exercises continuously. This not only reduces the effectiveness of rehabilitation training but also poses a risk of secondary injury due to accidental slippage. Furthermore, the lack of continuity in training makes it difficult to assess rehabilitation progress, significantly impacting patient confidence and treatment adherence.

[0005] Furthermore, the height of the trainer in the aforementioned existing technology is not adjustable, and if the height of the trainer does not match the patient, it can only be disassembled and reinstalled. Utility Model Content

[0006] In view of the shortcomings of the existing technology, such as the inability to provide stable grip force and the easy slippage that could cause secondary injuries, the purpose of this utility model is to provide a shoulder joint trainer with adjustable height that can be held stably by the user.

[0007] The technical solution provided by this utility model is: a shoulder joint trainer, comprising,

[0008] A positioning mechanism, which includes a first surface and a second surface along the thickness direction; along the height direction of the positioning mechanism, the first surface is arrayed with a plurality of fasteners, and the second surface is used to fit against the wall surface;

[0009] A shoulder ladder assembly, which is detachably connected to a positioning mechanism; the shoulder ladder assembly includes a third surface and a fourth surface along the thickness direction, the third surface being opposite to the first surface;

[0010] The third surface is provided with a connector adapted to the fastener. When the fastener is connected to the connector, the shoulder ladder assembly is fixed on the positioning mechanism.

[0011] A gripping component that is slidably connected to a shoulder ladder component.

[0012] Furthermore, the fastener and the connector are snapped together, and the fastener and the first surface form a cavity for the connector to pass through.

[0013] Furthermore, the connector includes an insertion portion and a support portion;

[0014] The supporting portion is located above the insert portion and is perpendicular to the insert portion; the supporting portion is also perpendicular to the first surface and extends in a direction away from the first surface.

[0015] When the fastener and the connector are snapped together, the insertion part is located in the cavity, and the support part abuts against the top of the fastener.

[0016] Furthermore, the connector also includes a resilient snap-fit ​​portion with an upward-facing hook tip; when the hook tip passes through the bottom end of the fastener, the snap-fit ​​portion extends outward elastically, causing the hook tip to abut against the bottom end of the fastener.

[0017] Furthermore, the shoulder ladder assembly is provided with a guide rail for the gripping assembly to slide, and the guide rail extends in the height direction of the shoulder ladder assembly.

[0018] Furthermore, the gripping assembly includes a slide handle that slides within a guide rail, and a grip portion fixedly connected to the slide handle for use by a user.

[0019] Furthermore, the gripping part includes,

[0020] Connecting rod, which is perpendicular to the slide handle;

[0021] The grip is perpendicular to the connecting rod and is distributed on both sides of the connecting rod.

[0022] Furthermore, both ends of the shoulder ladder assembly are bent away from the first surface.

[0023] Furthermore, the guide rail is provided with scale lines on one or both sides, and the scale lines extend along the height direction of the shoulder ladder assembly.

[0024] Furthermore, the contact area between the guide rail and the slide handle is provided with a concave-convex structure.

[0025] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0026] This invention allows the connector to be fastened to fasteners of different heights. For patients in the early stages of rehabilitation, the trainer can be adjusted to a lower position for easy completion of basic lifting movements. As recovery progresses, the height can be gradually increased to enhance the training difficulty. Furthermore, this adjustable function allows the trainer to accommodate users of varying heights, ranging from 150cm to 190cm, ensuring that each patient can train in the optimal position that best suits their individual physiological conditions, effectively improving the targeted nature and comfort of rehabilitation training.

[0027] The gripping component of this invention is provided with a gripping part for the user to hold. The gripping part can conform to the natural gripping posture of the palm, effectively preventing the risk of slipping out during training and improving the naturalness and effectiveness of rehabilitation training. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the shoulder joint trainer in one embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the shoulder ladder assembly structure in one embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the fastener and connector structure in one embodiment of this application.

[0031] Explanation of the labels in the diagram:

[0032] Positioning mechanism 1; Fastener 11;

[0033] Shoulder ladder assembly 2; insertion part 211, support part 212, hook tip 213; guide rail 22;

[0034] Grip assembly 3; slide handle 31; connecting rod 32; grip bar 33. Detailed Implementation

[0035] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0036] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0037] Frozen shoulder, rotator cuff injury, and shoulder dislocation are common shoulder problems, often causing symptoms such as limited shoulder joint movement, pain, and muscle atrophy. For example, patients with frozen shoulder may be unable to raise their arm due to joint adhesions, severely affecting basic daily activities such as dressing, combing hair, and even eating.

[0038] Patients who have undergone shoulder surgery (such as rotator cuff repair or shoulder replacement) need to gradually restore joint mobility and muscle strength through scientific rehabilitation training to avoid joint stiffness or muscle atrophy due to prolonged immobilization.

[0039] The purpose of a shoulder joint trainer is to provide patients with controllable passive or active movement guidance, helping them to perform progressive training in shoulder flexion, abduction, and other directions under the guidance of a rehabilitation therapist, and gradually expand the range of motion of the joint.

[0040] Traditional rehabilitation relies on manual assistance from therapists or simple equipment (such as pulleys and resistance bands), which suffers from insufficient standardization and difficulty in quantifying training intensity. For example, resistance band training is difficult to precisely control and lacks visual progress feedback.

[0041] This application discloses a shoulder joint trainer, comprising a positioning mechanism 1, a shoulder ladder assembly 2 detachably connected to the positioning mechanism 1, and a gripping assembly 3. The positioning mechanism 1 includes a first surface and a second surface along its thickness direction. Along its height direction, the first surface is arrayed with a plurality of fasteners 11, i.e., the fasteners 11 are evenly spaced along the height direction of the positioning mechanism 1. The second surface is used to abut against a wall or other flat surface. More specifically, the positioning mechanism 1 has a rectangular plate-like structure and can be connected to a wall or other flat surface by fasteners, preferably bolt assemblies.

[0042] The shoulder ladder assembly 2 includes a third surface and a fourth surface along its thickness direction. The third surface is opposite to the first surface, and a connecting member adapted to the fastener 11 is provided on the third surface. When the fastener 11 is connected to the connecting member, the shoulder ladder assembly 2 is fixed on the positioning mechanism. After the shoulder ladder assembly 2 is fixed, the gripping assembly 3 can slide on the fourth surface of the shoulder ladder assembly 2.

[0043] More specifically, the fastener 11 is snapped into place with the connector. The special slot design allows the shoulder ladder assembly 2 to fit tightly with the positioning assembly 1, ensuring that the shoulder ladder assembly 2 remains stable and does not wobble during training. The fastener 11 and the first surface of the positioning assembly 1 form a cavity for the connector to pass through.

[0044] The connector includes an insertion portion 211 and a support portion 212. The support portion 212 is located above and perpendicular to the insertion portion 211, and is also perpendicular to the first surface of the positioning assembly 1, extending away from the first surface. When the fastener 11 is snapped into place with the connector, the insertion portion 211 is located within the cavity, and the support portion 212 abuts against the top end of the fastener 11.

[0045] The connector also includes a resilient latching part with an upward-facing hook tip 213. When the hook tip 213 begins to pass through the through hole at the bottom of the fastener 11, due to the relatively small size of the through hole, the latching part undergoes elastic deformation under external force, compressing the hook tip 213 and part of the hook body to pass smoothly through the through hole. Once the hook tip 213 has completely passed through the through hole, the external force acting on the lower latching part decreases, and the latching part begins to extend outward and recover due to its own elasticity. Finally, the hook tip 213 and the bottom of the fastener 11 form an abutment state. This abutment method enables a reliable connection between components 21 and 11, effectively preventing them from separating during normal use and ensuring the stability and reliability of the entire device.

[0046] The two ends of the shoulder ladder component 2 are curved away from the first surface of the positioning component 1. The shoulder ladder component 2 adopts a double-end arc-shaped optimized design, which conforms to the trajectory law during shoulder movement and achieves a high degree of coupling between the training trajectory and the natural movement pattern of the human body. This ensures that the user's hand grip point is always kept within the optimal lever arm range of shoulder joint movement, effectively preventing the risk of slipping during training and improving the naturalness and effectiveness of rehabilitation training.

[0047] More specifically, the shoulder ladder assembly 2 is provided with a guide rail 22 for the gripping assembly 3 to slide. The guide rail 22 has scale lines on one or both sides, which extend along the height direction of the shoulder ladder assembly 2.

[0048] The grip assembly 3 includes a slide handle 31 that slides within the guide rail 22, and a grip portion fixedly connected to the slide handle 31 for the user to hold. The contact area between the guide rail 22 and the slide handle 31 has a concave-convex structure, which ensures that the grip assembly 3 remains stationary during user grip training, and also allows for smooth movement by applying a push force in a specific direction.

[0049] The grip includes a connecting rod 32 perpendicular to the slide handle 31, and a grip bar 33 perpendicular to the connecting rod 32. The grip bars 33 are symmetrically distributed on both sides of the connecting rod 32. The grip bars 33 are preferably designed with a circular cross-section, and the central axis direction conforms to the natural grip posture of the palm. The outer layer of the grip bar 33 is covered with medical-grade silicone material, and the surface is provided with an array of anti-slip raised dots.

[0050] The usage procedure of the shoulder joint trainer of this application is as follows: Taking a patient who needs rehabilitation training for the left arm as an example, in the initial state, the patient first uses the right hand to assist the left hand in stably gripping the handle 33. Then, the right hand moves down to firmly grip the bottom end of the connecting rod 32, and the right arm pushes the gripping component 3 upward. With the help of the sliding between the guide rail 22 and the slide handle 31, the left hand can smoothly climb up the shoulder ladder component 2.

[0051] When the left hand rises to the point where it triggers pain, the patient immediately stops applying force with the right hand. At this moment, the friction between the guide rail 22 and the slider 31 comes into play, and the gripping component 3 locks instantly without the need for an additional braking device. This locking position corresponds to the scale lines on the side of the guide rail 22, marked with precise centimeter values, helping patients and medical staff to intuitively obtain data on the range of motion during upper limb training.

[0052] The entire training process is entirely controlled by the patient, who can control the pace and intensity of the movement. The device achieves intelligent braking by using the concave-convex structure at the contact point between the guide rail 22 and the slide handle 31. By measuring the change in the height of the slide handle 31, the range of motion of the patient during each training session is quantitatively recorded. This allows doctors and patients to track the rehabilitation progress, develop personalized training plans, and effectively improve the patient's confidence and cooperation in using the rehabilitation equipment.

[0053] Furthermore, the connecting piece can be fastened to fasteners 11 of different heights according to the rehabilitation progress or the patient's height, thereby adjusting the height of the shoulder ladder assembly 2. Specifically, for patients in the early stages of rehabilitation, the trainer can be adjusted to a lower position for easy completion of basic lifting movements; as recovery progresses, the height can be gradually increased to enhance the training difficulty. For users of different heights, this adjustment function allows the trainer to adapt to a height range of 150cm-190cm, ensuring that each patient can train in the optimal position that suits their physiological conditions, effectively improving the targeted nature and comfort of rehabilitation training.

[0054] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A shoulder joint trainer characterized by: include, Positioning mechanism (1), which includes a first surface and a second surface along the thickness direction; along the height direction of the positioning mechanism (1), the first surface is arrayed with a plurality of fasteners (11), and the second surface is used to fit against the wall surface; Shoulder ladder assembly (2), which is detachably connected to positioning mechanism (1); the shoulder ladder assembly (2) includes a third surface and a fourth surface along the thickness direction, the third surface being opposite to the first surface; The third surface is provided with a connector adapted to the fastener (11). When the fastener (11) is connected to the connector, the shoulder ladder assembly (2) is fixed on the positioning mechanism (1). The gripping component (3) is slidably connected to the shoulder ladder component (2).

2. A shoulder joint exerciser according to claim 1, wherein: The fastener (11) is snapped together with the connector, and the fastener (11) forms a cavity with the first surface, the cavity being used for the connector to pass through.

3. A shoulder joint trainer according to claim 2, characterized in that: The connector includes an insertion part (211) and a support part (212); The support portion (212) is located above the insertion portion (211) and is perpendicular to the insertion portion (211); the support portion (212) is also perpendicular to the first surface and extends in a direction away from the first surface; When the fastener (11) is snapped into place with the connector, the insertion part (211) is located in the cavity, and the support part (212) abuts against the top of the fastener (11).

4. A shoulder joint trainer according to claim 3, characterized in that: The connector also includes a resilient snap-fit ​​portion, which has an upward-facing hook tip (213); When the hook tip (213) passes through the bottom end of the fastener (11), the buckle extends outward elastically, so that the hook tip (213) and the bottom end of the fastener (11) abut against each other.

5. The shoulder joint exerciser of claim 1, wherein: The shoulder ladder assembly (2) is provided with a guide rail (22) for the gripping assembly (3) to slide, and the guide rail (22) extends in the height direction of the shoulder ladder assembly (2).

6. A shoulder joint trainer according to claim 5, characterized in that: The gripping assembly (3) includes a slide handle (31) that slides within a guide rail (22), and a grip portion that is fixedly connected to the slide handle (31) for use by a user.

7. A shoulder joint trainer according to claim 6, characterized in that: The gripping part includes, Connecting rod (32), which is perpendicular to slide (31); A grip (33) is perpendicular to the connecting rod (32) and the grip (33) is distributed on both sides of the connecting rod (32).

8. A shoulder joint trainer according to claim 1, characterized in that: The two ends of the shoulder ladder assembly (2) are bent away from the first surface.

9. A shoulder joint trainer according to claim 5, characterized in that: The guide rail (22) has scale lines on one or both sides, and the scale lines extend along the height direction of the shoulder ladder assembly (2).

10. A shoulder joint trainer according to claim 6, characterized in that: The contact area between the guide rail (22) and the slide handle (31) is provided with a concave-convex structure.

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