Inflatable wrist joint cuff

By designing an inflatable wrist brace, which uses airbags and press-fit airbag components to cushion the impact on the wrist joint, the problem of existing hand fixation devices affecting flexibility and cleanliness is solved, achieving effective protection and comfortable wear.

CN223886316UActive Publication Date: 2026-02-10WUHAN CHILDRENS HOSPITAL
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Patent Information

Application Number
CN202520158830.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-02-10
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Most existing hand restraints are bracket-shaped, which affects joint flexibility and is not suitable for children. They can easily lead to skin diseases and mobility issues, and cannot effectively cushion the impact of falls or collisions.

Method used

Design an inflatable wrist brace comprising an airbag, a press-fit airbag, a sealing plate, a compression spring, and a spring. The inflatable components reduce the impact force during falls or collisions, while the Velcro and disposable fabric components keep the wrist brace clean and dry.

Benefits of technology

It effectively cushions the impact on the wrist joint, maintains the natural range of motion of the wrist, prevents injury, and allows for quick fabric changes when sweating to prevent bacterial growth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an inflatable wrist joint cuff, which relates to the technical field of medical instruments and comprises a cuff, two elastic bands are fixedly connected to one side of the cuff, and a cavity is formed in the cuff; the inflation assembly is arranged in the cavity and used for reducing direct impact force on the wrist joint during collision, and the inflation assembly comprises an air bag, a pressing air bag, a plugging plate, a plugging block, a compression spring and a spring; the replacement assembly is arranged between the wrist guard and the elastic band, is used for keeping the interior of the wrist guard clean and dry and comprises a hook-and-loop fastener a, a hook-and-loop fastener b and disposable cloth. According to the wrist joint wrister, the inflation assembly can serve as an effective buffer to reduce direct impact force on the wrist joint during falling or collision, so that the injury risk is reduced, the natural movement range of the wrist can be kept, meanwhile, new cloth can be rapidly replaced through the replacement assembly, and the replacement efficiency is improved. And the interior of the wrist guard is kept clean and dry.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is inflatable wrist joint wrist guard. BACKGROUND

[0002] Juvenile idiopathic arthritis is one of the more common rheumatic diseases in children, mainly affecting wrist joints, ankle joints and knee joints and other parts, the swelling and pain of wrist joints caused by the disease not only brings physical discomfort to the children, but also affects the writing ability of school-age children, and although correct use of wrist splint can effectively reduce pain, but most of the hand fixators on the market are mainly for injuries, tendon sheath inflammation or sprain and other conditions, wearing these devices often affects the flexibility of the joint, which may cause inconvenience to the daily activities of the children, and children are lively and active, and the affected part is easy to collide with external objects during activity, causing unnecessary harm, and when the children sweat, the sweat will be absorbed by the wrist guard, which not only dirties the wrist guard, but also easily causes skin diseases in long-term wearing. SUMMARY

[0003] The utility model aims at solving the shortcomings in the background art, provides inflatable wrist joint wrist guard, in order to solve the above problems, through the setting of inflatable assembly, can be used as an effective buffer, reduce the direct impact force on wrist joint when falling or colliding, thereby reducing the risk of injury, and can maintain the natural range of motion of the wrist, and through the setting of replacement assembly, the new cloth can be quickly replaced, keeping the inside of the wrist guard clean and dry.

[0004] To achieve the above object, the utility model provides the following technical scheme, an inflatable wrist joint wrist guard, characterized by, including: wrist guard, two elastic bands are fixedly connected on one side of the wrist guard, a cavity is formed in the inside of the wrist guard, an inflatable assembly is arranged in the inside of the cavity, which is used for reducing the direct impact force on the wrist joint when colliding, the inflatable assembly comprises: air bag, pressing air bag, plugging plate, block, compression spring and spring, and replacement assembly is arranged between the wrist guard and the elastic band, which is used for keeping the inside of the wrist guard clean and dry, the replacement assembly comprises: magic tape a, magic tape b and disposable cloth.

[0005] Further, the air bag is fixedly installed in the inside of the cavity, the pressing air bag is fixedly installed in the inside of the cavity, one side of the pressing air bag is connected with air inlet pipe b, one end of the air inlet pipe b is connected with air inlet box, one side of the air inlet box is connected with air inlet pipe a, one side of the pressing air bag is connected with air outlet pipe a, one end of the air outlet pipe a is connected with air outlet box, one side of the air outlet box is connected with air outlet pipe b, and the air outlet pipe b is fixedly connected with the air bag.

[0006] Further, the soft pad is fixedly connected to the top of the pressing air bag, the air bag cavity is arranged in the pressing air bag, two fixed plates are arranged in the air bag cavity, and a plurality of reset springs are fixedly connected between the two fixed plates.

[0007] Further, the positioning plate a is fixedly connected in the air outlet box, a plurality of air outlets are arranged on one side of the positioning plate a, the compression spring is fixedly connected to one side of the positioning plate a, the sealing plate is fixedly connected to one side of the compression spring, and the sealing ring is arranged between the inner wall of the air outlet box and the sealing plate.

[0008] Further, the positioning plate b is fixedly connected in the air inlet box, a plurality of air inlets are arranged on one side of the positioning plate b, the spring is fixedly connected to one side of the positioning plate b, the plug is fixedly connected to one side of the spring, and the sealing ring is arranged between the inner wall of the plug and the air inlet box. By arranging the air inlet pipe a and the plug, the pressing air bag can be sealed, so that the air in the pressing air bag cannot be discharged to the outside when the pressing air bag is inflated by extrusion.

[0009] Further, the air inlet pipe a is provided with external threads at one end, the air inlet pipe a is provided with a sealing cover a at one end, the sealing cover a is provided with internal threads matched with the external threads of the air inlet pipe a, the sealing cover a is provided with a rubber plug a, one side of the air bag is connected with a gas discharge pipe, the gas discharge pipe is provided with external threads at one end, the gas discharge pipe is provided with a sealing cover b at one end, the sealing cover b is provided with internal threads matched with the external threads of the gas discharge pipe, and the sealing cover b is provided with a rubber plug b. When it is necessary to discharge the air in the air bag, the sealing cover b can be screwed to make the rubber plug b move out of the gas discharge pipe, and the sealing cover b is separated from the gas discharge pipe, so that the gas in the air bag can be discharged.

[0010] Further, the wrist guard is fixedly connected with the magic tape a on one side, the magic tape b is arranged in the magic tape a, the disposable cloth is fixedly connected in the magic tape b, the hook magic tape is arranged at the bottom of the wrist guard, the velvet magic tape is arranged at the bottom of the two elastic bands, and the magic tape a and the magic tape b are arranged.

[0011] The utility model provides a kind of inflatable wrist joint wrist guard, with the following beneficial effects:

[0012] The utility model discloses an advantage lies in, through the setting of inflation assembly, can be as effective buffer, reduce the direct impact force of wrist joint when falling or colliding, thereby reduce the risk of injury, and through the setting of air bag, can make wrist guard closely adhere on wrist, can also adjust the gas amount inside air bag according to different activity intensity and individual demand simultaneously, will not limit the natural activity range of wrist, keep or enhance the flexibility of joint, ensure that the wearer can increase the inflation amount to strengthen protection in more intense activity, but can reduce the inflation amount to improve flexibility in more gentle activity.

[0013] Secondly, through the setting of replacement assembly, can replace new cloth under the condition of more sweating, keep the inside of wrist guard clean and dry, help to prevent bacteria breeding. DRAWINGS

[0014] Figure 1 It is the overall structure schematic drawing of the utility model.

[0015] Figure 2 It is the overall structure sectional view of the utility model.

[0016] Figure 3 It is the press air bag sectional view of the utility model.

[0017] Figure 4 It is the elastic band sectional view of the utility model.

[0018] Figure 5 It is the wrist guard structure schematic drawing of the utility model.

[0019] Figure 6 It is the disposable cloth structure schematic drawing of the utility model.

[0020] Figure 7 It is the Figure 2 Enlarged view of A of the utility model.

[0021] Figure 8 It is the Figure 3 Enlarged view of B of the utility model.

[0022] Figure 9 It is the Figure 3 Enlarged view of C of the utility model.

[0023] Figures 1-9In the middle: 1, wrist guard; 101, cavity; 102, air bag; 2, elastic band; 201, velvet magic tape; 202, hook magic tape; 3, press air bag; 301, bag cavity; 302, fixed plate; 303, reset spring; 304, soft pad; 4, air outlet box; 401, positioning plate a; 402, air outlet; 403, compression spring; 404, plugging plate; 405, air outlet pipe a; 406, air outlet pipe b; 5, air inlet box; 501, positioning plate b; 502, air inlet; 503, spring; 504, block; 505, air inlet pipe a; 506, air inlet pipe b; 6, sealing cover a; 601, rubber plug a; 7, sealing cover b; 701, rubber plug b; 702, air release pipe; 8, magic tape a; 801, magic tape b; 802, disposable cloth. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] The present application provides an inflatable wrist joint wrist guard, which can realize the setting of the inflation assembly, can serve as an effective buffer, can reduce the direct impact force on the wrist joint when falling or colliding, so as to reduce the risk of injury, and can maintain the natural range of motion of the wrist, and through the setting of the replacement assembly, the new cloth can be quickly replaced, and the inside of the wrist guard can be kept clean and dry. The inflatable wrist joint wrist guard will be described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments.

[0026] The present application will be described in detail below with reference to the drawings and specific embodiments.

[0027] Please refer to Figures 1-9 In the middle, the inflatable wrist joint wrist guard provided by the present application comprises: a wrist guard 1, two elastic bands 2 are fixedly connected to one side of the wrist guard 1, and a cavity 101 is formed in the inside of the wrist guard 1; an inflation assembly arranged in the inside of the cavity 101, for reducing the direct impact force on the wrist joint when colliding, the inflation assembly comprises: an air bag 102, a press air bag 3, a plugging plate 404, a block 504, a compression spring 403 and a spring 503; and a replacement assembly arranged between the wrist guard 1 and the elastic bands 2, for keeping the inside of the wrist guard 1 clean and dry, the replacement assembly comprises: a magic tape a 8, a magic tape b 801 and a disposable cloth 802.

[0028] The cavity 101 is internally fixedly installed with the air bag 102, the cavity 101 is internally fixedly installed with the pressing air bag 3, one side of the pressing air bag 3 is connected with the air inlet pipe b506, one end of the air inlet pipe b506 is connected with the air inlet box 5, one side of the air inlet box 5 is connected with the air inlet pipe a505, one side of the pressing air bag 3 is connected with the air outlet pipe a405, one end of the air outlet pipe a405 is connected with the air outlet box 4, one side of the air outlet box 4 is connected with the air outlet pipe b406, and the air outlet pipe b406 is fixedly connected with the air bag 102; the pressing air bag 3 is fixedly connected with the soft pad 304 at the top, the pressing air bag 3 is internally provided with the bag cavity 301, the bag cavity 301 is internally provided with two fixed plates 302, and a plurality of reset springs 303 are fixedly connected between the two fixed plates 302.

[0029] After the wrist guard 1 is bound on the hand, the plugging cover a6 can be screwed, the plugging cover a6 is unscrewed from one end of the air inlet pipe a505, then the pressing air bag 3 is squeezed, the fixed plate 302 is pressed to the plurality of reset springs 303, at this time, the air in the pressing air bag 3 is pressed and enters the air outlet pipe a405, pushes the blocking plate 404 to press the compression spring 403, and moves the blocking plate 404 to the inside of the air outlet box 4, so that the air in the blocking plate 404 enters the air outlet box 4, and then enters the air bag 102 through a plurality of air outlets 402 and the air outlet pipe b406.

[0030] The air outlet box 4 is internally fixedly connected with the positioning plate a401, a plurality of air outlets 402 are formed in one side of the positioning plate a401, the compression spring 403 is fixedly connected with the blocking plate 404 on one side of the positioning plate a401, the sealing ring is arranged between the inner wall of the air outlet box 4 and the blocking plate 404; the positioning plate b501 is fixedly connected in the air inlet box 5, a plurality of air inlets 502 are formed in one side of the positioning plate b501, the spring 503 is fixedly connected with the blocking piece 504 on one side of the positioning plate b501, the sealing ring is arranged between the inner wall of the air inlet box 5 and the blocking piece 504, and the air inlet pipe a505 and the blocking piece 504 are arranged to form a seal for the pressing air bag 3, so that when the pressing air bag 3 is squeezed to inflate the air bag 102, the air in the pressing air bag 3 cannot be discharged to the outside through the air inlet pipe a505.

[0031] When the pressing air bag 3 is loosened, the plurality of reset springs 303 are released and push the pressing air bag 3 to restore the original shape, and during the restoring process, the volume of the pressing air bag 3 increases without a corresponding increase in the amount of gas, at this time, a relatively low pressure area is generated inside the pressing air bag 3, and the pressure difference between the relatively low internal pressure and the relatively high atmospheric pressure outside will cause the outside air to try to flow into the pressing air bag 3 through the air inlet pipe a 505 and the air inlet pipe b 506, and when the internal and external pressure difference of the pressing air bag 3 reaches a certain degree, the air with relatively high pressure outside will push the plug 504 and the spring 503 to move, thereby opening the air inlet pipe a 505, at this time, the air outside can enter the pressing air bag 3 through the air inlet pipe a 505, the air inlet 502 and the air inlet pipe b 506, and when the internal and external pressure of the pressing air bag 3 reaches balance, the spring 503 will push the plug 504 and the sealing ring on the plug 504 to block the air inlet pipe a 505, preventing the outside gas from entering, so when the user repeatedly presses or loosens the pressing air bag 3, the air bag 102 can be inflated, and the total amount of gas inside the air bag 102 can be controlled by controlling the number of times of pressing the pressing air bag 3, so that the user can increase the inflation amount to strengthen the protection in more intense activities, and can reduce the inflation amount to improve flexibility in more gentle activities.

[0032] Wherein, the outer side of the air inlet pipe a 505 is provided with external threads, one end of the air inlet pipe a 505 is provided with a blocking cover a 6, the inside of the blocking cover a 6 is provided with internal threads matched with the external threads of the outer side of the air inlet pipe a 505, the inside of the blocking cover a 6 is provided with a rubber plug a 601, one side of the air bag 102 is connected with a gas discharge pipe 702, the outer side of one end of the gas discharge pipe 702 is provided with external threads, one end of the gas discharge pipe 702 is provided with a blocking cover b 7, the inside of the blocking cover b 7 is provided with internal threads matched with the external threads of the outer side of the gas discharge pipe 702, and the inside of the blocking cover b 7 is provided with a rubber plug b 701.

[0033] When it is necessary to discharge the air inside the air bag 102, the blocking cover b 7 can be screwed to move the rubber plug b 701 out of the inside of the gas discharge pipe 702, and the blocking cover b 7 is separated from the gas discharge pipe 702, so that the gas inside the air bag 102 can be discharged.

[0034] Wherein, one side of the wrist guard 1 is fixedly connected with a magic tape a 8, the inside of the magic tape a 8 is provided with a magic tape b 801, the inside of the magic tape b 801 is fixedly connected with a disposable cloth 802, the bottom of the wrist guard 1 is provided with a hook-faced magic tape 202, and the bottoms of the two elastic bands 2 are each provided with a pile-faced magic tape 201.

[0035] When it is necessary to replace the disposable cloth 802, the user can pull the disposable cloth 802 to separate the magic tape b 801 from the magic tape a 8, then take out a new disposable cloth 802, and paste the magic tape b 801 on one side of the new disposable cloth 802 to the magic tape a 8.

[0036] The working principle is as follows:

[0037] In use, the hand is inserted through the disposable cloth 802, and then the two elastic bands 2 are pulled around the wrist to make the velvet hook-and-loop fastener 201 and the hook-and-loop fastener 202 adhere to each other, so as to wear the wrist guard 1 on the wrist, and by adjusting the positions of the two, the ulna can be exposed, so that the wrist guard 1 can be more closely fitted to the wrist.

[0038] After the wrist guard 1 is tied on the hand, the closure cover a6 can be twisted, the closure cover a6 is rotated out from one end of the air inlet pipe a505, then the pressing air bag 3 is squeezed, the fixing plate 302 squeezes the plurality of reset springs 303, at this time, the air in the pressing air bag 3 is squeezed and enters the air outlet pipe a405, and pushes the blocking plate 404 to squeeze the compression spring 403, so that the blocking plate 404 moves to the inside of the air outlet box 4, so that the air in the blocking plate 404 enters the air outlet box 4, and then enters the air bag 102 through the plurality of air outlets 402 and the air outlet pipe b406, when the gas enters the air bag 102, the compression spring 403 pushes the blocking plate 404 to reset, and blocks the air outlet pipe a405.

[0039] When the pressing air bag 3 is loosened, the plurality of reset springs 303 are released, and the pressing air bag 3 is pushed to restore its original shape. During this recovery process, the volume of the pressing air bag 3 increases while the amount of gas does not increase accordingly. At this time, a relatively low pressure area is generated inside the pressing air bag 3. The pressure difference between this relatively low internal pressure and the relatively high atmospheric pressure outside will cause external air to attempt to flow into the pressing air bag 3 through the air inlet pipe a505 and the air inlet pipe b506. When the internal and external pressure difference of the pressing air bag 3 reaches a certain degree, the external air with relatively high pressure will push the block 504 and the spring 503 to move in the direction of the positioning plate b501, thereby opening the air inlet pipe a505. At this time, the external air can enter the pressing air bag 3 through the air inlet pipe a505, the air inlet 502, and the air inlet pipe b506. When the internal and external pressures of the pressing air bag 3 reach equilibrium, the spring 503 will push the block 504 and the sealing ring on the block 504 to block the air inlet pipe a505, preventing external gas from entering. Therefore, when the user repeatedly presses or loosens the pressing air bag 3, the air bag 102 can be inflated, and the total amount of gas inside the air bag 102 can be controlled by controlling the number of times the pressing air bag 3 is squeezed. This allows the user to increase the inflation amount to enhance protection during more intense activities, and to reduce the inflation amount to improve flexibility during more gentle activities.

[0040] In addition, the air inlet pipe a505 and the block 504 are arranged to form a seal for the pressing air bag 3, so that when the pressing air bag 3 is squeezed to inflate the air bag 102, the air inside the pressing air bag 3 cannot be discharged to the outside through the air inlet pipe a505.

[0041] When it is needed to discharge the air inside the air bag 102, the plug cap b7 can be screwed to move the rubber plug b701 out of the inside of the air discharge pipe 702, and to separate the plug cap b7 from the air discharge pipe 702, so as to discharge the air inside the air bag 102.

[0042] Further, when it is needed to replace the disposable cloth 802, the user can pull the disposable cloth 802 to separate the Velcro b801 from the Velcro a8, then take out a new disposable cloth 802, and stick the Velcro b801 on one side of the new disposable cloth 802 to the Velcro a8.

[0043] In the above embodiments, the description of each embodiment has its own focus, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0044] The inflatable wrist joint wrist guard provided by the embodiments of the present application is described in detail above, and the principle and implementation manner of the present application are described by applying specific examples; the above embodiment description is only used to help understand the technical solutions and core ideas of the present application; those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An inflatable wrist brace, characterized in that... ,include: Wrist guard (1), two elastic bands (2) are fixedly connected to one side of the wrist guard (1), and a cavity (101) is opened inside the wrist guard (1); An inflatable assembly disposed inside the cavity (101) is used to reduce the direct impact force on the wrist joint during a collision. The inflatable assembly includes: an airbag (102), a compression airbag (3), a sealing plate (404), a plug (504), a compression spring (403), and a spring (503); and A replaceable component is provided between the wristband (1) and the elastic band (2) for keeping the inside of the wristband (1) clean and dry. The replaceable component includes: Velcro a (8), Velcro b (801) and disposable cloth (802).

2. The inflatable wrist brace according to claim 1, characterized in that, An airbag (102) is fixedly installed inside the cavity (101). A compression airbag (3) is fixedly installed inside the cavity (101). An air inlet pipe b (506) is connected to one side of the compression airbag (3). An air inlet box (5) is connected to one end of the air inlet pipe b (506). An air inlet pipe a (505) is connected to one side of the air inlet box (5). An air outlet pipe a (405) is connected to one side of the compression airbag (3). An air outlet box (4) is connected to one end of the air outlet pipe a (405). An air outlet pipe b (406) is connected to one side of the air outlet box (4). The air outlet pipe b (406) is fixedly connected to the airbag (102).

3. The inflatable wrist brace according to claim 2, characterized in that, A soft pad (304) is fixedly connected to the top of the pressing airbag (3). A bladder cavity (301) is opened inside the pressing airbag (3). Two fixing plates (302) are provided inside the bladder cavity (301). Multiple return springs (303) are fixedly connected between the two fixing plates (302).

4. The inflatable wrist brace according to claim 2, characterized in that, The air outlet box (4) is fixedly connected to a positioning plate a (401). Multiple air outlets (402) are opened on one side of the positioning plate a (401). A compression spring (403) is fixedly connected to one side of the positioning plate a (401). A sealing plate (404) is fixedly connected to one side of the compression spring (403). A sealing ring is provided between one side of the inner wall of the air outlet box (4) and the sealing plate (404).

5. The inflatable wrist brace according to claim 2, characterized in that, The air intake box (5) is fixedly connected to a positioning plate b (501). Multiple air inlets (502) are opened on one side of the positioning plate b (501). A spring (503) is fixedly connected to one side of the positioning plate b (501). A block (504) is fixedly connected to one side of the spring (503). A sealing ring is provided between the inner wall of the block (504) and the air intake box (5).

6. The inflatable wrist brace according to claim 2, characterized in that, The air intake pipe a (505) has an external thread at one end and a sealing cap a (6) at one end. The sealing cap a (6) has an internal thread that matches the external thread on the outside of the air intake pipe a (505). The sealing cap a (6) has a rubber plug a (601) inside. The airbag (102) is connected to a vent pipe (702) on one side. The vent pipe (702) has an external thread at one end and a sealing cap b (7) at one end. The sealing cap b (7) has an internal thread that matches the external thread on the outside of the vent pipe (702). The sealing cap b (7) has a rubber plug b (701) inside.

7. The inflatable wrist brace according to claim 1, characterized in that, The wristband (1) is fixedly connected to one side with a Velcro a (8), and the Velcro a (8) is provided with a Velcro b (801) inside. The Velcro b (801) is fixedly connected with a disposable cloth (802) inside. The bottom of the wristband (1) is provided with a hook-and-loop Velcro (202), and the bottom of the two elastic bands (2) is provided with a fleece Velcro (201).