Bionic knee joint brace with protection function
Patent Information
- Application Number
- CN202520739166.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-04-18
AI Technical Summary
[0005]为了克服现有仿生膝关节支具防护功能欠佳,碰撞或者强烈的撞击时,缺乏足够的缓冲和阻挡屏障,极易对患者造成二次伤害,从而加重伤势,影响其恢复的缺点,本实用新型提供一种具有防护功能的仿生膝关节支具
[0012] Beneficial effects: 1. When it is necessary to increase pressure support and protection for the knee joint, the micro air pump is activated, and the gas is filled into the hollow arc-shaped elastic plate through the telescopic connecting tube, so that it fits tightly with the leg, providing additional support and further enhancing the protective effect. This solves the problem that the existing bionic knee joint brace has poor protective function and lacks sufficient buffer and blocking barrier when it collides or has a strong impact, which can easily cause secondary injury to the patient, thereby aggravating the injury and affecting its recovery.
Smart Images

Figure CN224655480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, and in particular to a bionic knee joint brace with protective function. Background Technology
[0002] The knee joint is one of the most easily injured joints in the human body. Whether it is an accidental sprain during daily activities or high-intensity use during sports or work, it can lead to knee joint damage. Bionic knee braces are assistive devices for the knee joint designed to mimic the structure and function of biological components. They are usually made of special materials and are designed to provide support, stability and protection for the knee joint. These braces can mimic the movement patterns and biomechanical properties of the human knee joint to help patients better restore knee joint function, reduce pain, and assist in movement in specific situations.
[0003] Although bionic knee braces are widely used in medical devices, they still have some limitations. For example, existing bionic knee braces have poor protective functions. In the event of a collision or a strong impact, they lack sufficient buffer and barrier, which can easily cause secondary injuries to patients, thereby aggravating the injury and affecting their recovery.
[0004] Therefore, it is necessary to design a bionic knee brace with protective functions. Utility Model Content
[0005] In order to overcome the shortcomings of existing bionic knee braces, such as poor protective function, lack of sufficient buffer and barrier during collisions or strong impacts, which can easily cause secondary injuries to patients, thereby aggravating the injury and affecting their recovery, this utility model provides a bionic knee brace with protective function.
[0006] The technical solution is as follows: A bionic knee joint brace with protective function includes a first fixing plate, a locking gear ring, a spring, a second fixing plate, a connecting shaft, a locking gear, an arc-shaped elastic plate, an elastic strap, a Velcro female, a Velcro female, a miniature air pump, and a telescopic connecting tube. The locking gear ring is slidably connected to the lower end of the first fixing plate, and a spring connects the locking gear ring to the first fixing plate. The connecting shaft is rotatably connected to the lower end of the first fixing plate, and the second fixing plate is fixedly connected to the connecting shaft. The locking gear is fixedly connected to the front side of the connecting shaft. The positioning gear meshes with the locking gear. Two arc-shaped elastic plates are fixedly connected to the left and right sides of the first and second fixed plates. An elastic strap is fixedly connected between the outer sides of the arc-shaped elastic plates on the left and right sides at the same height. A Velcro female is fixedly connected to the left end of the elastic strap, and the Velcro female and Velcro female are glued together. A Velcro female is fixedly connected to the right end of the elastic strap. A miniature air pump is installed on the top of the two uppermost arc-shaped elastic plates. A telescopic connecting tube is connected to the side of the two arc-shaped elastic plates on the same side that are close to each other.
[0007] Optionally, it also includes a sweat-absorbing cotton pad, which is fixedly connected between the inner sides of the arc-shaped elastic plates on the left and right sides at the same height.
[0008] Optionally, it also includes a button, a scale marking ring, and a slider. A button is fixedly connected to the front side of the locking gear ring, a scale marking ring is fixedly connected to the front side of the button, and multiple sliders distributed axially are fixedly connected to the outer side of the locking gear ring. Multiple sliding grooves are provided on the first fixed plate, and the sliders are slidably connected to the sliding grooves.
[0009] Optionally, it also includes a filter screen, with the bottom of the two lowest curved elastic plates fixedly connected to the filter screen.
[0010] Optionally, it also includes a heat-conducting plate, with the heat-conducting plate fixedly connected to the inner side of the arc-shaped elastic plate.
[0011] Optionally, the curved elastic plate is hollow.
[0012] Beneficial effects: 1. When it is necessary to increase pressure support and protection for the knee joint, the micro air pump is activated, and the gas is filled into the hollow arc-shaped elastic plate through the telescopic connecting tube, so that it fits tightly with the leg, providing additional support and further enhancing the protective effect. This solves the problem that the existing bionic knee joint brace has poor protective function and lacks sufficient buffer and blocking barrier when it collides or has a strong impact, which can easily cause secondary injury to the patient, thereby aggravating the injury and affecting its recovery.
[0013] 2. When it is necessary to adjust the flexion and extension angle of the knee joint brace, press the button backward. The spring is compressed, causing the locking gear ring to disengage from the locking gear. Then the second fixing plate can be rotated. By adjusting the angle of the second fixing plate relative to the first fixing plate, different flexion and extension angles of the knee joint brace can be achieved, thereby adapting to different activity needs and the movement state of the human knee joint. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional plan view of the components of this utility model, including the first fixing plate, the second fixing plate, and the arc-shaped elastic plate.
[0016] Figure 3 This is a partially sectional view with the cover overlaid on the second fixing plate, connecting shaft, and locking gear of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the first fixing plate, the arc-shaped elastic plate, and the elastic strap.
[0018] Figure 5 This is a partially sectional view of the first fixing plate component of this utility model, with some parts obscured.
[0019] Figure 6 This is a three-dimensional structural diagram of the components of this utility model, including the locking gear ring, spring, and slider.
[0020] Figure 7 This is a three-dimensional structural diagram of the second fixing plate, connecting shaft, and locking gear of this utility model.
[0021] Figure 8 This is a three-dimensional structural diagram of the components of this utility model, including the miniature air pump, telescopic connecting pipe, and heat-conducting plate.
[0022] Figure 9 This is a three-dimensional structural diagram of the elastic strap, hook and loop fastener, and hook and loop sub-fastener components of this utility model.
[0023] The meanings of the labels in the attached diagram are as follows: 1-First fixing plate, 11-Locking gear ring, 12-Spring, 13-Slide groove, 2-Second fixing plate, 21-Connecting shaft, 22-Locking gear, 3-Arc-shaped elastic plate, 4-Elastic strap, 41-Hook and loop fastener, 42-Hook and loop fastener, 5-Sweat-absorbing cotton pad, 6-Button, 61-Scale marking ring, 62-Slider, 7-Miniature air pump, 71-Telescopic connecting tube, 72-Filter screen, 8-Heat-conducting plate. Detailed Implementation
[0024] Example: A bionic knee brace with protective functions, such as Figures 1-5 and Figures 7-9As shown, the device includes a first fixing plate 1, a locking gear ring 11, a spring 12, a second fixing plate 2, a connecting shaft 21, a locking gear 22, an arc-shaped elastic plate 3, an elastic strap 4, a Velcro female adhesive strip 41, a Velcro female adhesive strip 42, a sweat-absorbing cotton pad 5, a miniature air pump 7, and a telescopic connecting tube 71. The locking gear ring 11 is slidably connected to the lower end of the first fixing plate 1, and a spring 12 is connected between the locking gear ring 11 and the first fixing plate 1. The connecting shaft 21 is rotatably connected to the lower end of the first fixing plate 1, and a second fixing plate 21 is welded onto the connecting shaft 21. Plate 2, with a locking gear 22 welded to the front of the connecting shaft 21, the locking gear ring 11 meshes with the locking gear 22. Two arc-shaped elastic plates 3 are welded to the left and right sides of both the first fixing plate 1 and the second fixing plate 2. The arc-shaped elastic plates 3 are hollow, providing cushioning performance. They further conform to the leg contour, thus firmly fixing the brace to the leg and ensuring it does not easily shift during exercise or daily activities, providing a stable support base for the knee joint. The outer sides of the arc-shaped elastic plates 3 at the same height on the left and right sides... An elastic strap 4 is fixedly connected between the two sides. A Velcro female adhesive patch 41 is attached to the left end of the elastic strap 4, and a Velcro male adhesive patch 42 is attached to the right end of the elastic strap 4. The Velcro female adhesive patch 41 and the Velcro male adhesive patch 42 are adhered to each other. Sweat-absorbing cotton pads 5 are fixedly connected between the inner sides of the curved elastic plates 3 on the left and right sides at the same height. The sweat-absorbing cotton pads 5 effectively absorb sweat generated on the skin surface of the legs during wear, keeping the skin dry. This not only improves wearing comfort but also prevents the brace from reducing friction between the brace and the skin due to sweat accumulation. The sliding motion further enhances the stability of the brace. Each of the two uppermost curved elastic plates 3 is equipped with a miniature air pump 7. The two curved elastic plates 3 on the same side are connected to telescopic connecting tubes 71 on the side that are close to each other. The telescopic connecting tubes 71 can extend and retract freely according to the flexion and extension of the knee joint without affecting the normal function of the brace. The air pump 7 inflates the inside of the curved elastic plate 3 through the telescopic connecting tubes 71, making the curved elastic plate 3 fit more tightly to the leg, providing additional support and further enhancing the protective effect.
[0025] like Figure 2 and Figures 4-6 As shown, it also includes a button 6, a scale marking ring 61, and a slider 62. The button 6 is welded to the front side of the locking gear ring 11, and the scale marking ring 61 is welded to the front side of the button 6. Multiple sliders 62 distributed axially are welded to the outer side of the locking gear ring 11. Multiple sliding grooves 13 are provided on the first fixing plate 1. The sliders 62 are slidably connected to the sliding grooves 13. Different flexion and extension angles of the knee joint brace can be achieved by adjusting the angle of the second fixing plate 2 relative to the first fixing plate 1, thereby adapting to different activity needs and the movement state of the human knee joint. At the same time, it restricts excessive flexion and extension of the knee joint during the movement, which can play a protective role.
[0026] like Figure 7 and Figure 8As shown, it also includes a filter 72 and a heat-conducting plate 8. The bottom of the two lowest arc-shaped elastic plates 3 are both welded with filters 72. The filters 72 can prevent dust, debris and other objects from entering the brace from below, avoiding contamination or interference to the knee joint, keeping the internal environment of the brace clean, which is beneficial to the rehabilitation and protection of the knee joint. The inner side of the arc-shaped elastic plates 3 is welded with heat-conducting plates 8. The heat-conducting plates 8 can effectively conduct the heat emitted by the leg skin, keep the internal temperature of the brace balanced, and help prevent skin discomfort or affect the normal physiological state of the knee joint due to excessive local temperature, providing a more comfortable and healthy wearing environment for the knee joint.
[0027] When wearing the brace, the user places the first fixing plate 1 on the appropriate position on the thigh, and the second fixing plate 2 on the lower leg. After wrapping the elastic strap 4 around the leg, the Velcro tab 42 is attached to the Velcro tab 41. The curved elastic plate 3 further conforms to the contour of the leg, thus firmly fixing the brace to the leg and ensuring that it will not easily shift during exercise or daily activities, providing a stable support base for the knee joint. When subjected to external collisions or impacts, the curved elastic plate 3 absorbs some energy through its elastic deformation, reducing the direct impact on the knee joint. Because the curved elastic plate 3 conforms to the contour of the leg, it can provide protection for the area around the knee joint over a large area, reducing the risk of injury to exposed parts of the body due to insufficient brace coverage. The sweat-absorbing cotton pad 5 can effectively absorb sweat. The device absorbs sweat generated on the leg skin during wear, keeping the skin dry. This not only improves wearing comfort but also prevents slippage caused by reduced friction between the brace and skin due to sweat buildup, further enhancing stability. When the user needs to adjust the flexion and extension angle of the knee brace, pressing button 6 backward moves button 6 backward, causing the locking gear ring 11 to move backward. At this time, slider 62 slides backward on the slide groove 13, ensuring smooth sliding of the locking gear ring 11. Spring 12 is compressed until the locking gear ring 11 and locking gear 22 no longer mesh. Then, the second fixing plate 2 can be rotated. The rotation of the second fixing plate 2 drives the locking gear 22 to rotate via the connecting shaft 21. The scale marking ring 61 fixedly connected to the front of button 6 can visually display the adjustment. The angle values allow for precise control by the user. Adjusting the angle of the second fixed plate 2 relative to the first fixed plate 1 allows for different flexion and extension angles of the knee brace, adapting to different activity needs and the movement state of the human knee joint. Simultaneously, it restricts excessive flexion and extension of the knee joint during movement, providing protection. After adjustment, pressing button 6 again returns spring 12 to its original position, and slider 62 slides forward on the slide groove 13, causing the locking gear ring 11 to re-engage with the locking gear 22. The telescopic connecting tube 71 can freely extend and retract according to the flexion and extension movements of the knee joint without affecting the normal function of the brace. When increased pressure support and protection for the knee joint are needed, the micro air pump 7 is activated. Gas enters the arc-shaped elastic plate 3 through the telescopic connecting tube 71, providing pressure to the arc-shaped elastic plate 3. The curved elastic plate 3 is inflated, allowing it to fit more tightly against the leg, providing additional support and further enhancing the protective effect. Once a suitable fit is achieved, the micro air pump 7 is turned off. Upon impact, the curved elastic plate 3 is compressed, acting as a cushioning effect similar to an air cushion, absorbing and dispersing impact force to a greater extent, providing more reliable protection for the knee joint. The filter 72 prevents dust and debris from entering the brace from below, avoiding contamination or interference with the knee joint and keeping the internal environment of the brace clean, which is beneficial for knee joint rehabilitation and protection. The heat-conducting plate 8 effectively conducts heat emitted from the leg skin, maintaining a balanced internal temperature of the brace and helping to prevent skin discomfort or affecting the normal physiological state of the knee joint due to excessive local temperature.To provide a more comfortable and healthy wearing environment for the knee joint, when not in use, simply detach the Velcro tab 42 from the Velcro tab 41 and remove the brace, thus completing the usage process.
Claims
1. A bionic knee joint brace with protective function, characterized in that, It includes a first fixing plate (1), a locking gear ring (11), a spring (12), a second fixing plate (2), a connecting shaft (21), a locking gear (22), an arc-shaped elastic plate (3), an elastic strap (4), a Velcro female (41), a Velcro female (42), a miniature air pump (7), and a telescopic connecting tube (71). The locking gear ring (11) is slidably connected to the lower end of the first fixing plate (1), and the spring (12) is connected between the locking gear ring (11) and the first fixing plate (1). The lower end of the first fixed plate (1) is rotatably connected to a connecting shaft (21), and a fixed component is connected to the connecting shaft (21). The second fixed plate (2) has a locking gear (22) fixedly connected to the front side of the connecting shaft (21). The locking gear ring (11) meshes with the locking gear (22). The first fixed plate (1) and the second fixed plate (2) have two arc-shaped elastic plates (3) fixedly connected to the left and right sides respectively. The outer sides of the arc-shaped elastic plates (3) at the same height on the left and right sides are fixedly connected with elastic straps (4). The left end of the elastic strap (4) is fixedly connected with a Velcro female sticker (41), and the right end of the elastic strap (4) is fixedly connected with a Velcro female sticker (42). The Velcro female sticker (41) and the Velcro female sticker (42) are pasted together. The top of the two uppermost arc-shaped elastic plates (3) are each equipped with a miniature air pump (7). The two arc-shaped elastic plates (3) on the same side on the left and right sides are each connected with a telescopic connecting tube (71).
2. The bionic knee brace with protective function according to claim 1, characterized in that, It also includes a sweat-absorbing cotton pad (5), and the sweat-absorbing cotton pad (5) is fixedly connected between the inner sides of the arc-shaped elastic plates (3) on the left and right sides at the same height.
3. A bionic knee brace with protective function according to claim 2, characterized in that, It also includes a button (6), a scale marking ring (61) and a slider (62). The button (6) is fixedly connected to the front side of the locking tooth ring (11), the scale marking ring (61) is fixedly connected to the front side of the button (6), and multiple sliders (62) distributed along the axial direction are fixedly connected to the outside of the locking tooth ring (11). Multiple sliding grooves (13) are provided on the first fixing plate (1), and the sliders (62) are slidably connected to the sliding grooves (13).
4. A bionic knee brace with protective function according to claim 3, characterized in that, It also includes a filter screen (72), and the bottom of the two lowest arc-shaped elastic plates (3) are fixedly connected with the filter screen (72).
5. A bionic knee joint brace with protective function according to claim 4, characterized in that, It also includes a heat-conducting plate (8), and the inner side of the arc-shaped elastic plate (3) is fixedly connected with a heat-conducting plate (8).
6. A bionic knee brace with protective function according to claim 5, characterized in that, The arc-shaped elastic plate (3) is hollow.