Far infrared knee protection device

By designing a far-infrared knee brace and adjusting the curved airbag and inflatable airbag, the problem of poor fit of existing knee braces is solved, achieving more efficient heat transfer and insulation, and promoting the rehabilitation of the knee joint.

CN224206225UActive Publication Date: 2026-05-08HUNAN UNIV OF CHINESE MEDICINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN UNIV OF CHINESE MEDICINE
Filing Date
2025-06-04
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing heated knee braces are difficult to adjust to the shape of the user's knee, resulting in poor fit, especially with significant heat loss in the concave areas on both sides of the knee, which is not conducive to knee joint rehabilitation.

Method used

A far-infrared knee brace device was designed, comprising a knee brace sleeve, a far-infrared heating film, an arc-shaped airbag, and an inflatable airbag. The inflatable airbag expands to fit the concave part of the knee. Combined with a temperature control module and a restraint component, it achieves a personalized fit and heat transfer.

Benefits of technology

It improves the fit to the knee area, enhances heat transfer efficiency and insulation performance, and helps with knee joint rehabilitation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of medical instruments, and particularly relates to a far infrared knee protection device which comprises a knee protection sleeve, a plurality of far infrared heating films and an attaching assembly. The kneecap sleeve comprises a supporting outer layer, an elastic contact layer and a first bandage; the plurality of far infrared heating films are dispersedly distributed and attached to one surface, close to the supporting outer layer, of the elastic contact layer; the two arc-shaped air bags are symmetrically distributed and arranged between the supporting outer layer and the far infrared heating film, the guide pipe is connected with the arc-shaped air bags and extends to the outer side of the supporting outer layer, the inflation balloon is connected with the guide pipe, and during use, the two arc-shaped air bags are located on the concave portions of the two sides of the knee respectively. The two arc-shaped air bags are properly expanded to enable the elastic contact layer to deform to be attached to the concave parts on the two sides of the knee, so that proper adjustment can be conducted according to the knee shape of a user, the attaching degree with the knee part is improved, the heat transfer efficiency is improved, gaps are reduced, the heat preservation performance is improved, and knee joint rehabilitation treatment is facilitated.
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Description

Technical Field

[0001] This application belongs to the field of medical devices, specifically relating to a far-infrared knee brace. Background Technology

[0002] Knee osteoarthritis is a common chronic bone and joint disease, mainly characterized by knee pain, stiffness, and limited range of motion. It is common in the elderly and people who have used their knees improperly for a long time. In medical rehabilitation, knee braces with heating functions are often used to provide heat therapy to the knee joint, promote local blood circulation, relieve pain, reduce inflammation, and relax muscles.

[0003] Existing knee braces with heating functions are structurally difficult to adjust to the shape of the user's knee, resulting in poor fit, especially in the concave areas on both sides of the knee, causing significant heat loss and hindering knee joint rehabilitation. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a far-infrared knee brace that can be appropriately adjusted according to the shape of the user's knee, thereby improving the fit to the knee area.

[0005] This application provides a far-infrared knee brace device, comprising:

[0006] The knee brace includes a supporting outer layer, an elastic contact layer disposed on the inner side of the supporting outer layer, and a first strap for binding at the knee joint;

[0007] Multiple far-infrared heating films are dispersed and adhered to the elastic contact layer on the side near the supporting outer layer;

[0008] The fitting assembly includes two arc-shaped airbags symmetrically distributed and disposed between the outer support layer and the far-infrared heating film, a conduit connected to the arc-shaped airbags and extending to the outside of the outer support layer, and an inflatable airbag connected to the conduit. In use, the two arc-shaped airbags are respectively located in the recessed areas on both sides of the knee.

[0009] Optionally, the far-infrared knee brace further includes a temperature control module, which includes: a temperature sensor attached to the far-infrared heating film, a temperature controller electrically connected to the temperature sensor, and a mobile power supply.

[0010] Optionally, the temperature control module further includes an LCD screen that is communicatively connected to the temperature controller.

[0011] Optionally, the inflatable bladder is provided with a one-way valve.

[0012] Optionally, the fitting assembly further includes a quick connector connecting the catheter and the inflatable balloon.

[0013] Optionally, the far-infrared knee brace further includes an upper restraint assembly, which includes an upper flexible fixing plate connected to the upper edge of the supporting outer layer or the elastic contact layer, and a second strap connected to the upper flexible fixing plate.

[0014] Optionally, the far-infrared knee brace further includes a lower restraint assembly, which includes a lower flexible fixing plate connected to the lower edge of the supporting outer layer or the elastic contact layer, and a third strap connected to the lower flexible fixing plate.

[0015] Optionally, the second strap is provided with a second figure-eight buckle, and the third strap is provided with a third figure-eight buckle.

[0016] Optionally, the first strap is provided with a first figure-eight buckle.

[0017] The beneficial effects of this application are that the far-infrared knee brace provided by this application is fitted onto the user's knee joint and fixed by a first strap. By squeezing the inflatable balloon, two arc-shaped air bladders are inflated. The appropriate expansion of the two arc-shaped air bladders causes the elastic contact layer to deform and conform to the concave parts on both sides of the knee. This allows for appropriate adjustment according to the shape of the user's knee, improving the fit to the knee, increasing the efficiency of heat transfer, reducing gaps and improving heat preservation performance, which is beneficial to knee joint rehabilitation treatment. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of the far-infrared knee brace provided in the embodiments of this application;

[0019] Figure 2 This is a structural schematic diagram of the contact surface of the far-infrared knee brace provided in the embodiments of this application.

[0020] In the diagram: 100, knee brace; 110, outer supporting layer; 120, elastic contact layer; 130, first strap; 131, first figure-eight buckle; 200, far-infrared heating film; 310, arc-shaped airbag; 320, conduit; 330, inflatable airbag; 331, one-way valve; 340, quick connector; 410, temperature sensor; 420, temperature controller; 430, LCD display; 500, upper restraint assembly; 510, upper flexible fixing plate; 520, second strap; 530, second figure-eight buckle; 600, lower restraint assembly; 610, lower flexible fixing plate; 620, third strap; 630, third figure-eight buckle. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] like Figure 1 and Figure 2 As shown, this application provides a far-infrared knee brace device, comprising: a knee brace 100, multiple far-infrared heating films 200, and a fitting assembly; wherein, the knee brace 100 includes a supporting outer layer 110, an elastic contact layer 120 disposed on the inner side of the supporting outer layer 110, and a first strap 130 for binding at the knee joint; the multiple far-infrared heating films 200 are dispersed and attached to the side of the elastic contact layer 120 near the supporting outer layer 110; the fitting assembly includes two arc-shaped airbags 310 symmetrically distributed and disposed between the supporting outer layer 110 and the far-infrared heating films 200, a conduit 320 connected to the arc-shaped airbags 310 and extending to the outer side of the supporting outer layer 110, and an inflatable airbag 330 connected to the conduit 320; in use, the two arc-shaped airbags 310 are respectively located in the recessed areas on both sides of the knee.

[0023] Compared with the prior art, the far-infrared knee brace device provided in this application has a knee brace 100 that is fitted onto the user's knee joint and fixed by a first strap 130. By squeezing the inflatable balloon 330, two arc-shaped airbags 310 are inflated. The appropriate expansion of the two arc-shaped airbags 310 causes the elastic contact layer 120 to deform and conform to the concave parts on both sides of the knee. This allows for appropriate adjustment according to the shape of the user's knee, improving the fit to the knee, increasing the efficiency of heat transfer, reducing gaps and improving heat preservation performance, which is beneficial to knee joint rehabilitation treatment.

[0024] It should be noted that the far-infrared heating film 200 can be a graphene flexible heating sheet, a far-infrared electric heating film, or a silicone heating sheet, used to generate far-infrared heating for the knee joint.

[0025] In one embodiment, the outer supporting layer 110 is made of nylon woven fabric or plastic sheet, and the elastic contact layer 120 is made of silicone or rubber.

[0026] In one possible implementation, the far-infrared knee brace also includes a temperature control module, which comprises: a temperature sensor 410 attached to the far-infrared heating film 200, a temperature controller 420 electrically connected to the temperature sensor 410, and a power supply. Specifically, the temperature sensor 410 can be an NTC thermistor, an RTD, or a flexible thin-film temperature sensor 410, and the temperature controller 420 can be an Arduino, ESP8266, or STM32. By sensing temperature changes through the sensor, converting the physical signal into an electrical signal, and then processing it through the temperature controller 420 to drive the actuator, the device ultimately achieves closed-loop temperature control, allowing the user's knee joint to receive heat therapy within a suitable temperature range.

[0027] In one possible implementation, the temperature control module also includes a liquid crystal display (LCD) 430 that is communicatively connected to the temperature controller 420. The temperature controller 420 sends the calculated temperature value to the LCD 430 via I2C or GPIO to display the current temperature in real time. The LCD 430 can be an LCD screen or an OLED screen.

[0028] It should be noted that the temperature control module can accept an external power source and can also be connected to a power bank.

[0029] In one possible implementation, the inflatable bladder 330 is provided with a one-way valve 331. The one-way valve 331 is used to prevent air leakage when the inflatable bladder 330 is compressed and to draw in air when it elastically returns to its original position.

[0030] In one possible implementation, the fitting assembly also includes a quick connector 340 connecting the conduit 320 and the inflatable balloon 330. The quick connector 340 can be located at the end of the conduit 320 or at the end of the connecting tube extending from the inflatable balloon 330, and can be quickly installed and removed via a snap-fit ​​connection.

[0031] In one possible implementation, the far-infrared knee brace device further includes an upper restraint assembly 500, which includes an upper flexible fixing plate 510 connected to the upper edge of the supporting outer layer 110 or the elastic contact layer 120, and a second strap 520 connected to the upper flexible fixing plate 510. In use, the upper flexible fixing plate 510 is located on the front of the thigh, the second strap 520 is located on the rear, and the upper restraint assembly 500 is fixed to the thigh, increasing the stability of the entire far-infrared knee brace device.

[0032] In one possible implementation, the far-infrared knee brace device further includes a lower restraint assembly 600, which includes a lower flexible fixing plate 610 connected to the lower edge of the supporting outer layer 110 or the elastic contact layer 120, and a third strap 620 connected to the lower flexible fixing plate 610. In use, the lower flexible fixing plate 610 is located on the front side of the lower leg, the third strap 620 is located on the rear side, and the lower restraint assembly 600 is fixed to the lower leg, increasing the stability of the entire far-infrared knee brace device.

[0033] In one possible implementation, the second strap 520 is provided with a second figure-eight buckle 530, and the third strap 620 is provided with a third figure-eight buckle 630. In use, the second strap 520 is tightened by the second figure-eight buckle 530, and its length can be adjusted to adapt to different leg circumferences; the third strap 620 is tightened by the third figure-eight buckle 630, and its length can be adjusted to adapt to different leg circumferences.

[0034] In one possible implementation, the first strap 130 is provided with a first figure-eight buckle 131. In use, the first strap 130 is tightened by the first figure-eight buckle 131, and the length can be adjusted to adapt to different knee joint circumferences.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0036] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A far-infrared knee brace, characterized in that, include: The knee brace (100) includes a supporting outer layer (110), an elastic contact layer (120) disposed inside the supporting outer layer (110), and a first strap (130) for binding to the knee joint. Multiple far-infrared heating films (200) are dispersed and attached to the side of the elastic contact layer (120) near the supporting outer layer (110); The fitting assembly includes two arc-shaped airbags (310) symmetrically distributed and disposed between the outer support layer (110) and the far-infrared heating film (200), a conduit (320) connected to the arc-shaped airbags (310) and extending to the outside of the outer support layer (110), and an inflatable airbag (330) connected to the conduit (320). In use, the two arc-shaped airbags (310) are respectively located in the recessed areas on both sides of the knee.

2. The far-infrared knee pad device according to claim 1, characterized in that, It also includes a temperature control module, which includes: a temperature sensor (410) attached to the far-infrared heating film (200), a temperature controller (420) electrically connected to the temperature sensor (410), and a power supply.

3. The far-infrared knee pad device according to claim 2, characterized in that, The temperature control module also includes an LCD screen (430) that is communicatively connected to the temperature controller (420).

4. The far-infrared knee pad device according to claim 1, characterized in that, The inflatable balloon (330) is provided with a one-way valve (331).

5. The far-infrared knee brace device according to claim 1, characterized in that, The fitting assembly also includes a quick connector (340) connecting the catheter (320) and the inflatable balloon (330).

6. The far-infrared knee brace device according to any one of claims 1-5, characterized in that, It also includes an upper restraint assembly (500), which includes an upper flexible fixing plate (510) connected to the upper edge of the supporting outer layer (110) or the elastic contact layer (120) and a second strap (520) connected to the upper flexible fixing plate (510).

7. The far-infrared knee brace device according to claim 6, characterized in that, It also includes a lower restraint assembly (600), which includes a lower flexible fixing plate (610) connected to the lower edge of the supporting outer layer (110) or the elastic contact layer (120) and a third strap (620) connected to the lower flexible fixing plate (610).

8. The far-infrared knee pad device according to claim 7, characterized in that, The second strap (520) is provided with a second figure-eight buckle (530), and the third strap (620) is provided with a third figure-eight buckle (630).

9. The far-infrared knee brace device according to any one of claims 1-5, characterized in that, The first strap (130) is provided with a first figure-eight buckle (131).