Wrist flexion function rehabilitation brace

Abstract

The utility model provides a kind of wrist joint flexion function rehabilitation brace, it is related to rehabilitation brace technical field, including support, adjusting assembly and spring.The wrist joint flexion function rehabilitation brace, patient first carries out the wearing of rehabilitation brace, when needing to adjust the tension of spring, rotates end head and drives threaded rod rotation, under the action of screw transmission, sliding sleeve will along the sliding slot of slide bar slide.Sliding bar in the other side's slide post plays the role of guiding, guarantee sliding sleeve smooth sliding, and will not occur deviation or jamming phenomenon.With the sliding of sliding sleeve, the distance between second connecting ring and first connecting ring changes, to stretch or relax spring, realize the adjustment of resistance size.When wrist joint carries out flexion training, patient exerts force by hand, drives wrist joint to do flexion action, at this time, the resistance of spring will exert counteracting force to hand and wrist, promote wrist muscle to be exercised in the process of overcoming resistance, gradually increase the strength and endurance of wrist muscle.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation braces, and in particular to a rehabilitation brace for wrist joint flexion function. Background Technology

[0002] A wrist flexion function rehabilitation brace is a device used for the rehabilitation of wrist flexion function. It is fixed around the wrist and hand, providing stability and support to aid in the recovery of an injured or surgically repaired wrist and promote rehabilitation. The strength of the wrist muscles is crucial for maintaining hand function and mobility, especially in the wrist flexion direction. Resistance training of the wrist can provide progressively increasing resistance, helping patients gradually increase the strength and endurance of their wrist muscles.

[0003] A search revealed a Chinese patent with authorization announcement number "CN219070855U" that provides "a wrist joint fixation brace, which can fix the patient's hand, wrist and arm, resulting in good fixation effect, and has multiple fixation straps with good breathability. The fixation straps can be quickly adjusted through the fixation components, thus providing convenience." Although this device has multiple fixation straps that can be quickly adjusted to improve fixation effect, it cannot help patients progressively increase wrist muscle strength and endurance. Utility Model Content

[0004] The purpose of this invention is to provide a wrist flexion function rehabilitation brace that solves the problem mentioned in the background art that it cannot help patients progressively enhance wrist muscle strength and endurance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wrist joint flexion function rehabilitation brace, comprising a support, an adjustment component, and a spring. The support includes a support bracket and a stop bar. The upper end of the support bracket is fixedly connected to the stop bar, and the upper end of the stop bar is fixedly connected to a first connecting ring. One end of the support bracket is provided with an adjustment component, which includes a curved plate and a sliding sleeve. The curved plate is rotatably connected to the support bracket. Sliding bars are fixedly connected to both sides of the curved plate, and a sliding groove is formed inside the sliding bar. Side blocks are fixedly connected to both sides of the bottom of the sliding sleeve, and the sliding sleeve is slidably connected to the sliding groove through the side blocks. A second connecting ring is fixedly connected to the upper end of the sliding sleeve, and the spring is detachably connected between the first connecting ring and the second connecting ring.

[0006] Preferably, the inner cavity of the support bracket is arc-shaped.

[0007] Preferably, a buckle strip is fixedly connected to one side of the support bracket, and a fixing strip is fixedly connected to the other side of the support bracket.

[0008] Preferably, two sets of the support bracket and the fixing strip are provided, and the two sets of the support bracket and the fixing strip are respectively provided on both sides of the stop strip.

[0009] Preferably, the adjusting assembly further includes a threaded rod, and a rotating hole is provided through the end face of one side of the slide bar. The rotating hole is connected to the slide groove, and the threaded rod is rotatably connected in the rotating hole.

[0010] Preferably, the rotating hole has a rotating groove inside, the rotating groove coincides with the axis of the rotating hole, a rotating ring is fixedly connected to the outer periphery of the threaded rod, the rotating ring is rotatably connected in the rotating groove, and an end is fixedly connected to one end of the threaded rod, the end being located at the end of the slide bar away from the support bracket.

[0011] Preferably, a threaded hole is provided through the side of the side block, and the threaded rod is inserted into the threaded hole of one side of the side block and threadedly connected to the threaded hole.

[0012] Preferably, a sliding column is fixedly connected inside the sliding groove of the sliding bar on the other side. The sliding column is arranged parallel to the threaded rod and is inserted into the threaded hole of the side block on the other side and is slidably connected to the side block.

[0013] Preferably, a partition plate is fixedly connected inside the sliding sleeve, and the partition plate is located at the upper end of the side block.

[0014] Preferably, the partition plate is inclined upwards.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The patient first dons the rehabilitation brace, inserting their arm into the support bracket, their palm into the sliding sleeve, and their fingers through the upper part of the partition plate, hooking the fingers tightly into the sliding sleeve. Using a combination of clips and fixing strips, the support bracket is securely fixed to the arm, making the rehabilitation brace more stable during use, less prone to displacement, and providing good support for the wrist joint. When adjusting the spring tension, i.e., adjusting the resistance to the wrist joint, the patient or medical staff rotates the end, which drives the threaded rod to rotate. Because the threaded rod is threadedly connected to the threaded hole on one side block, the sliding sleeve slides along the groove of the sliding strip under the action of threaded transmission. The sliding post in the other side of the sliding strip acts as a guide, ensuring smooth sliding of the sliding sleeve and preventing displacement or jamming. As the sliding sleeve slides, the distance between the second connecting ring and the first connecting ring changes, thereby stretching or loosening the spring, achieving adjustment of the resistance. When performing wrist flexion exercises, patients use their hands to flex their wrists. The resistance generated by the spring exerts a counterforce on the hand and wrist, which helps to exercise the wrist muscles as they overcome the resistance, gradually increasing the strength and endurance of the wrist muscles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the wrist joint flexion function rehabilitation brace of this utility model;

[0018] Figure 2 This is a side view of the wrist joint flexion function rehabilitation brace of this utility model;

[0019] Figure 3 This is a schematic diagram of the bent plate structure of this utility model;

[0020] Figure 4 A structural schematic diagram showing the location of the rotating hole in this utility model;

[0021] Figure 5 This is a schematic diagram of the sliding sleeve structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the adjustment component structure of this utility model;

[0023] Figure 7 for Figure 6 Enlarged view of point A.

[0024] The following are the labels in the diagram: 1. Support bracket; 11. Support bracket; 111. Buckle strip; 112. Fixing strip; 12. Stop strip; 121. No. 1 connecting ring; 2. Adjustment component; 21. Bend plate; 211. Slide bar; 2111. Slide groove; 2112. Rotary hole; 2113. Rotary groove; 2114. Slide column; 22. Slide sleeve; 221. Side block; 2211. Threaded hole; 222. Divider plate; 223. No. 2 connecting ring; 23. Threaded rod; 231. Rotary ring; 232. End; 3. Spring. Detailed Implementation

[0025] 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 scope of protection of the present utility model.

[0026] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown, the device includes a support 1 for supporting the arm, an adjustment component 2, and a spring 3. The support 1 includes a support bracket 11 and a stop bar 12. The inner cavity of the support bracket 11 is arc-shaped, which better adapts to the structure of the human arm and makes the arm more comfortable during wrist joint training. The upper end of the support bracket 11 is fixedly connected to the stop bar 12, which prevents the arm from sliding out of the inner cavity of the support bracket 11. The upper end of the stop bar 12 is fixedly connected to a connecting ring 121. An adjustment component is provided at one end of the support bracket 11. 2. The adjusting assembly 2 includes a bent plate 21 and a sliding sleeve 22. The bent plate 21 is rotatably connected to the support bracket 11. Sliding strips 211 are fixedly connected to both sides of the bent plate 21, and sliding grooves 2111 are formed inside the sliding strips 2111. Side blocks 221 are fixedly connected to both sides of the bottom of the sliding sleeve 22, and the sliding sleeve 22 is slidably connected to the sliding grooves 2111 through the side blocks 221. A second connecting ring 223 is fixedly connected to the upper end of the sliding sleeve 22. A spring 3 is detachably connected between the first connecting ring 121 and the second connecting ring 223. The spring 3 can be removed from the first connecting ring 121 and the second connecting ring 223, and springs 3 with different wire diameters can be replaced to change the elastic force of the spring 3.

[0027] like Figure 1 and Figure 2As shown, a snap-fit ​​strip 111 is fixedly connected to one side of the support bracket 11, and a fixing strip 112 is fixedly connected to the other side of the support bracket 11. Two sets of both the support bracket 11 and the fixing strip 112 are provided, and the two sets of support brackets 11 and fixing strips 112 are respectively located on both sides of the stop strip 12. After inserting the arm into the support bracket 11, the fixing strip 112 is inserted into the snap of the snap-fit ​​strip 111, and the arm is tightened. The two sets of fixing strips 112 and snap-fit ​​strips 111 located on both sides of the stop strip 12 further enhance the stability of the device fixed to the arm.

[0028] like Figure 1 and Figure 2 As shown, the adjusting assembly 2 also includes a threaded rod 23, such as Figure 3 and Figure 4 As shown, a rotating hole 2112 is formed through the end face of one side of the slide bar 211. The rotating hole 2112 is connected to the slide groove 2111, and the threaded rod 23 is rotatably connected in the rotating hole 2112. A rotating groove 2113 is formed inside the rotating hole 2112, and the axis of the rotating groove 2113 coincides with that of the rotating hole 2112. A rotating ring 231 is fixedly connected to the outer circumference of the threaded rod 23, and the rotating ring 231 is rotatably connected in the rotating groove 2113. The cooperation between the rotating ring 231 and the rotating groove 2113 ensures that the threaded rod 23 rotates smoothly. Figure 6 and Figure 7 As shown, one end of the threaded rod 23 is fixedly connected to an end head 232, which is located at the end of the slide bar 211 away from the support bracket 11. Figure 5 As shown, a threaded hole 2211 is provided through the side of the side block 221. The threaded rod 23 is inserted into the threaded hole 2211 of one side block 221 and is threadedly connected to the threaded hole 2211. A sliding column 2114 is fixedly connected inside the sliding groove 2111 of the sliding strip 211 on the other side. The sliding column 2114 is arranged parallel to the threaded rod 23. The sliding column 2114 is inserted into the threaded hole 2211 of the other side block 221 and is slidably connected to the side block 221. The sliding column 2114 plays a guiding role to ensure that the sliding sleeve 22 slides smoothly.

[0029] The sliding sleeve 22 can slide along the sliding groove 2111. From a mechanical point of view, the tension of the spring 3 follows Hooke's Law, that is, the magnitude of the tension is directly proportional to the length of extension. When the sliding sleeve 22 is positioned on the slide bar 211 near the support 11, the initial extension length of the spring 3 is relatively short. According to Hooke's Law, the tension that the patient needs to overcome to bend the spring 3 at this time is relatively small. For patients in the early stages of rehabilitation with weak wrist muscles, this low-resistance training intensity is moderate, allowing patients to complete wrist flexion movements in a relatively relaxed state. It avoids the risk of injury due to excessive resistance, which may prevent patients from training normally. This allows the patient's wrist muscles to gradually adapt to the rhythm of rehabilitation training in low-intensity training, promoting initial muscle recovery and slight increase in strength.

[0030] In the early stages of rehabilitation, when even small resistance is insufficient to overcome the injury, an assistant can press down on the bending plate 21, causing it to rotate downwards. Simultaneously, the spring 3 is stretched. As the assistant slowly releases the force, the elasticity of the spring 3 returns it to its original position, causing the bending plate 21 to rotate, thus completing the wrist flexion. Although external assistance is needed initially, as the wrist follows the rotation of the plate, the relevant muscle groups (such as the wrist flexors) are passively stretched and stimulated, promoting muscle blood circulation and preventing disuse atrophy.

[0031] As the patient's wrist muscle strength and endurance gradually improve, the sliding sleeve 22 is slid along the slider 211 away from the support 11. This operation increases the tensile length of the spring 3 in its initial state. According to Hooke's Law, the tension of the spring 3 that the patient needs to overcome increases when performing the same range of wrist flexion. At this time, the patient's wrist muscles need to exert more force to complete the training movement, and this gradually increasing resistance provides a stronger stimulus to the wrist muscles. In the process of continuously overcoming the gradually increasing resistance, the muscles will undergo adaptive changes through their own physiological mechanisms, such as thickening of muscle fibers and enhanced muscle contraction ability, thereby further improving the strength and endurance of the wrist muscles.

[0032] like Figure 5 As shown, a partition plate 222 is fixedly connected inside the sliding sleeve 22, and the partition plate 222 is located at the upper end of the side block 221. When the palm is inserted into the sliding sleeve 22, the fingers pass through the upper end of the partition plate 222 and bend to hook the sliding sleeve 22. The partition plate 222 is set to be inclined upward, which makes it easier for the fingers to be close to the inside of the sliding sleeve 22.

[0033] Spring 3 can be removed, and end 232 can be rotated to rotate threaded rod 23, causing sliding sleeve 22 to move along the groove 2111 of slide bar 211. After changing the distance of sliding sleeve 22, the two ends of spring 3 can be hooked onto first connecting ring 121 and second connecting ring 223 respectively. Alternatively, without removing spring 3, end 232 can be rotated directly to rotate threaded rod 23, thereby changing the distance of sliding sleeve 22.

[0034] Using this utility model, such as Figure 1 and Figure 2As shown, in actual use, the patient first puts on the rehabilitation brace, inserting their arm into the support bracket 11, their palm into the sliding sleeve 22, and their fingers through the upper end of the partition plate 222, hooking their fingers tightly onto the sliding sleeve 22. Using the interlocking clips 111 and 112, the support bracket 11 is securely fixed to the arm via a snap-fit ​​mechanism, making the rehabilitation brace more stable during use and less prone to displacement, providing good support for the wrist joint. When it is necessary to adjust the tension of the spring 3, i.e., adjust the resistance to the wrist joint, the patient or medical staff rotates the end 232. The end 232 drives the threaded rod 23 to rotate. Since the threaded rod 23 is threadedly connected to the threaded hole 2211 of one side block 221, the sliding sleeve 22 slides along the groove 2111 of the slide bar 211 under the action of threaded transmission. The sliding post 2114 in the other side slide bar 211 acts as a guide, ensuring that the sliding sleeve 22 slides smoothly without deviation or jamming. As the sliding sleeve 22 slides, the distance between the second connecting ring 223 and the first connecting ring 121 changes, thereby stretching or relaxing the spring 3 and adjusting the resistance. During wrist flexion training, the patient exerts force with their hand to flex the wrist. At this time, the resistance generated by the spring 3 applies a counterforce to the hand and wrist, prompting the wrist muscles to be exercised in the process of overcoming resistance, gradually increasing the strength and endurance of the wrist muscles.

Claims

1. A wrist joint flexion function rehabilitation brace, characterized in that: The device includes a support (1), an adjusting assembly (2), and a spring (3). The support (1) includes a support bracket (11) and a stop bar (12). The upper end of the support bracket (11) is fixedly connected to the stop bar (12), and the upper end of the stop bar (12) is fixedly connected to a connecting ring (121). One end of the support bracket (11) is provided with an adjusting assembly (2). The adjusting assembly (2) includes a bent plate (21) and a sliding sleeve (22). The bent plate (21) is rotatably connected to the support bracket (11). Slides (211) are fixedly connected to both sides of the plate (21). Slides (211) have grooves (2111) inside. Side blocks (221) are fixedly connected to both sides of the bottom of the sleeve (22). The sleeve (22) is slidably connected to the grooves (2111) through the side blocks (221). A second connecting ring (223) is fixedly connected to the upper end of the sleeve (22). The spring (3) is detachably connected between the first connecting ring (121) and the second connecting ring (223).

2. The wrist joint flexion function rehabilitation brace according to claim 1, characterized in that, The inner cavity of the support bracket (11) is arc-shaped.

3. The wrist flexion function rehabilitation brace according to claim 1, characterized in that, A buckle strip (111) is fixedly connected to one side of the support bracket (11), and a fixing strip (112) is fixedly connected to the other side of the support bracket (11).

4. The wrist joint flexion function rehabilitation brace according to claim 1 or 3, characterized in that, The support bracket (11) and the fixing strip (112) are provided in two sets, and the two sets of the support bracket (11) and the fixing strip (112) are respectively provided on both sides of the stop strip (12).

5. The wrist joint flexion function rehabilitation brace according to claim 1, characterized in that, The adjustment assembly (2) also includes a threaded rod (23), and a rotating hole (2112) is provided through the end face of the slide bar (211) on one side. The rotating hole (2112) is connected to the slide groove (2111), and the threaded rod (23) is rotatably connected in the rotating hole (2112).

6. The wrist joint flexion function rehabilitation brace according to claim 5, characterized in that, The rotating hole (2112) has a rotating groove (2113) inside, and the rotating groove (2113) coincides with the axis of the rotating hole (2112). A rotating ring (231) is fixedly connected to the outer periphery of the threaded rod (23), and the rotating ring (231) is rotatably connected in the rotating groove (2113). One end of the threaded rod (23) is fixedly connected to an end head (232), and the end head (232) is located at the end of the slide bar (211) away from the support bracket (11).

7. The wrist joint flexion function rehabilitation brace according to claim 6, characterized in that, The side block (221) has a threaded hole (2211) through it, and the threaded rod (23) is inserted into the threaded hole (2211) of the side block (221) and is threadedly connected to the threaded hole (2211).

8. The wrist joint flexion function rehabilitation brace according to claim 7, characterized in that, A sliding column (2114) is fixedly connected inside the sliding groove (2111) of the sliding bar (211) on the other side. The sliding column (2114) is arranged parallel to the threaded rod (23). The sliding column (2114) is inserted into the threaded hole (2211) of the side block (221) on the other side and is slidably connected to the side block (221).

9. The wrist joint flexion function rehabilitation brace according to claim 1, characterized in that, The sliding sleeve (22) is internally fixedly connected to a partition plate (222), and the partition plate (222) is located at the upper end of the side block (221).

10. The wrist joint flexion function rehabilitation brace according to claim 9, characterized in that, The partition plate (222) is inclined upward.

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