Lightweight adjustable knee joint corrector

Abstract

The invention provides a lightweight adjustable knee joint corrector, relates to the technical field of knee joint correction auxiliary devices, and aims to solve the problems that a common knee joint orthopedic brace cannot provide assistance when a patient stretches and bends the knee due to lack of an assistance effect, and the knee joint cannot be corrected when the bending angle between a thigh bandage and a shank adjustable bandage changes too fast. The invention relates to an anti-falling device, in particular to an anti-falling device for a patient, which solves the problems that the rapid falling of the body cannot be blocked only by the relaxation or contraction of the muscle of the patient, and the secondary injury is easily caused along with the falling risk and the abrasion of knee joints in the prior art. The anti-falling device comprises a thigh fixing ring sleeve, and a shank fixing ring sleeve is arranged below the thigh fixing ring sleeve; the thigh fixing ring sleeve and the shank fixing ring sleeve are connected through a knee joint automatic flexion and extension connecting band, the outer side of the thigh fixing ring sleeve is matched with a thigh outer side buckle through a thigh fixing bandage for fixing and limiting, and the fixing mode of the outer side of the shank fixing ring sleeve is consistent with the fixing mode of the outer wall of the thigh fixing ring sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of knee joint correction auxiliary devices, and in particular to a lightweight adjustable knee joint corrector. Background Art

[0002] Knee osteoarthritis is a degenerative disease that primarily affects people over 65. As the largest joint in the human body, the knee bears the majority of the body's weight. The incidence of knee osteoarthritis is the highest among all joints, making it one of the most common joint diseases affecting human health. Symptoms include redness, swelling, and pain in the knee, pain when walking up and down stairs, and knee soreness and discomfort when sitting or standing. Elderly people experience pain and limited mobility due to degenerative diseases such as knee arthritis, meniscus injuries, and gouty arthritis. Decreased lower limb muscle strength in the elderly can easily lead to falls. Orthoses are used worldwide to provide support and alleviate symptoms. These auxiliary supports improve the dynamic stability of the knee joint and reduce the risk of falls.

[0003] Common clinical treatments for knee osteoarthritis include physical therapy, medication, surgery, and biomechanical therapy. While physical therapy and medication can effectively alleviate pain in the affected joint, they are not ideal for long-term treatment because they cannot correct the deformed axial alignment of the knee joint. Furthermore, surgery is expensive and involves extensive trauma, making it difficult for patients to accept it.

[0004] Common knee orthotic braces lack the power-assisting effect and cannot provide assistance when the patient extends or flexes the knee. When the bending angle between the thigh strap and the adjustable calf strap changes too quickly, the patient's own muscle relaxation or contraction alone cannot prevent the body from falling rapidly, which is accompanied by the risk of falling and wear of the knee joint, and is prone to secondary injury. The technical problems that need to be solved during the correction process are: how to reduce the joint load and avoid secondary cartilage damage; and how to improve the wearing comfort of the corrector. Therefore, a lightweight adjustable knee orthosis is designed to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that common knee orthotic braces lack the power-assisting effect and cannot provide power assistance when the patient extends or flexes the knee. When the bending angle between the thigh strap and the adjustable calf strap changes too quickly, the patient's own muscles cannot relax or contract alone to prevent the body from falling rapidly, which is accompanied by the risk of falling and wear of the knee joint, and is prone to secondary injury. A lightweight adjustable knee corrector is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a lightweight adjustable knee joint corrector, comprising a thigh fixing ring sleeve, a calf fixing ring sleeve is arranged below the thigh fixing ring sleeve, the thigh fixing ring sleeve and the calf fixing ring sleeve are connected by a knee joint automatic flexion and extension connecting belt, the outer side of the thigh fixing ring sleeve is fixed and limited by a thigh fixing strap in cooperation with the outer side of the thigh buckle, the fixing method of the outer side of the calf fixing ring sleeve is consistent with the fixing method of the outer wall of the thigh fixing ring sleeve, the knee joint automatic flexion and extension connecting belt includes a joint box seat, an upper box thigh fixing support belt is installed above the joint box seat, and the lower part of the joint box seat is fixed with the upper box thigh fixing support belt. The lower box is equipped with a calf fixing support belt, the upper box thigh fixing support belt and the lower box calf fixing support belt are respectively connected up and down with the joint box seat as the center and can rotate, the joint box seat limits the flexion and extension angle range of the joint, and the upper box thigh fixing support belt and the lower box calf fixing support belt are also equipped with a pad carrier, and a drive control device is also installed between the knee joint automatic flexion and extension connection belt and the pad carrier. The drive control device integrates a torque adjustment mechanism, a speed adjustment mechanism, a power supply module, a mode conversion mechanism and an integrated interactive monitoring mechanism, which together constitute a drive control module of the orthosis for controlling the motion parameters of the orthosis.

[0007] Preferably, the thigh fixing ring sleeve includes a thigh guard plate, and a silicone slide is slidably connected to the inner side of the thigh guard plate. The upper box thigh fixing support belt is distributed on the outer side of the thigh fixing ring sleeve and is fixedly connected to the upper end of the silicone slide plate. An inner thigh inflatable airbag is installed on the inner side of the thigh guard plate. The thigh guard plate has at least one fixing strap or belt placed around the thigh to fix the thigh ring sleeve on the thigh. The fixing strap connection is completed by the thigh Japanese-shaped ring buckle and the thigh elastic band. The upper box thigh fixing support belt also includes an upper box inner thigh fixing support belt and an upper box outer thigh fixing support belt.

[0008] Preferably, the calf fixing ring is arranged on the lower side of the thigh fixing ring, the calf fixing ring includes a calf guard, and the inner side of the calf guard is slidably connected to a silicone slide. The calf fixing ring is arranged on the calf, and one end thereof is fixedly connected to the bottom end of the silicone slide. The calf fixing ring includes a calf fixing strap, an inflatable airbag on the inner side of the calf, a calf Japanese-style ring buckle and an outer side of the calf buckle structure, which are consistent with the limiting structure in the thigh fixing ring, the difference is that the calf fixing ring also includes a calf hoop, and the calf hoop is used to fit the back of the calf, and the lower box calf fixing support belt also includes a lower box inner calf fixing support belt and a lower box outer calf fixing support belt.

[0009] Preferably, the inner thigh fixing support belt of the upper box is connected to the thigh guard through T-shaped screws and semi-open fixed slide rails, and a silicone slide plate is slidably connected to the inner side of each thigh guard; the bottom end of the outer thigh fixing support belt of the upper box is fixedly connected to a limiting hole connected to the T-shaped through-slot slide rail, and the limiting slot is inserted into the limiting hole, and the outer thigh fixing support belt of the upper box and the inner thigh fixing support belt of the upper box are buckled together to form the upper box thigh fixing support belt to realize the flexion function.

[0010] Preferably, the inner side calf fixing support belt of the lower box is connected to the calf guard plate by T-shaped screws and semi-open fixed slide rails, and a silicone slide plate is slidably connected to the inner side of each calf guard plate; the upper end of the outer side calf fixing support belt of the lower box is fixedly connected to a limiting hole connected to the T-shaped through-slot slide rail, and the limiting slot is inserted into the limiting hole, and the outer side calf fixing support belt of the lower box and the inner side calf fixing support of the lower box are buckled together to form the lower box calf fixing support belt to realize the flexion function.

[0011] Preferably, the joint box seat is composed of a box seat and a cover plate that are buckled together, and a limit groove and symmetrically distributed limit protrusions are provided in the box seat. A rotation center axis is passed through the upper box thigh fixing support belt and the lower box calf fixing support belt to form a flexion and extension limit space of 0°-135°, thereby realizing the axial rotation of the upper box thigh fixing support belt and the lower box calf fixing support belt; at the same time, the gap between the rotation center axis and the base plate of the joint box seat is used to ensure their relative movement; in addition, the two limit connecting protrusions arranged on both sides of the center column enable the upper rotation limit space and the lower rotation limit space to be formed at the top and bottom ends of the joint box seat respectively after the joint box seat end cover plate and the joint box base plate are buckled together, which can realize the joint bending movement while limiting the relative range of uprightness, thereby playing a role in joint protection.

[0012] Preferably, the torque adjustment mechanism includes a torque adjustment slide, which is arranged at the upper end of the upper box thigh fixed support belt, and the torque adjustment slide is also provided with a torque adjustment guide groove; a slidable torque adjustment slider is provided in the torque adjustment guide groove, and the torque adjustment slider passes through the torque adjustment guide groove from one end of the torque adjustment slide.

[0013] Preferably, the speed adjustment mechanism includes a speed adjustment slide, which is arranged in the upper box thigh fixed support belt, and the speed adjustment guide groove is also provided in the speed adjustment slide; the speed adjustment guide groove is provided with a slidable speed adjustment slider, and the speed adjustment guide groove is passed through one end of the speed adjustment slide, the power supply module includes a power supply and a switch, which is arranged in the joint box seat of the knee joint automatic flexion and extension connecting belt and is electrically connected to the drive control device for power supply, the mode conversion mechanism is arranged in the knee joint automatic flexion and extension connecting belt, and is connected to the PCB board electricity, the mode switching mechanism includes: a chuck adjustment assembly, which passes through the upper and lower leg fixing groups and is exposed in the middle of the upper box thigh fixed support belt and the lower box calf fixed support belt, the PCB board is connected in the integrated interactive monitoring mechanism, the mode switching mechanism includes: an interactive control window, an integrated monitoring sensor, and a breathable mesh, which passes through the upper and lower leg fixing groups and is connected in the middle of the thigh outer guard plate and the calf outer guard plate.

[0014] Preferably, the pad carrier is arranged on the thigh-calf frame. The pad carrier can be a plastic element or a metal element, for example, made of rigid plastic.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, during use, the corrector structure adopted by the present invention improves the convenience, comfort and personalization level of the knee joint orthosis. Users can easily adjust the tightness and activity angle of the orthosis according to their own rehabilitation needs and the doctor's guidance to achieve a personalized rehabilitation plan. At the same time, the intelligent adjustment system and ergonomic design further improve the user's wearing comfort and rehabilitation effect. With "ergonomics + intelligent interaction" as the core concept, breakthrough innovation is made to address the two major pain points of poor adaptability and low aesthetics of traditional orthoses. The main body adopts a three-dimensional lattice structure generated by a topological optimization algorithm. Through 3D printing, it achieves the unity of lightweight (weight <300g) and high strength. Compared with traditional metal brackets, it reduces weight by 40% while maintaining equivalent support performance, which can effectively provide patients with a more comfortable experience. The overall structural space layout is reasonable and easy to install and maintain, solving the problem.

[0016] 2. In the present invention, during use, the thigh and calf fixation loops are connected by an automatic knee flexion and extension connection belt structure. The automatic knee flexion and extension connection belt consists of an upper thigh fixation support belt, a joint box seat, and a lower calf fixation support belt. The overall shape is inspired by the bionic cheetah thigh joint structure design, with a natural and smooth curved surface. The flexion function is achieved by the automatic knee flexion and extension connection belt in conjunction with the thigh and calf fixation loop structures. The inner sides of the thigh and calf fixation loops are slidably connected to silicone slides to fix the position of the thigh and calf and improve wearing comfort. The inflatable airbag is flat when at rest and expands to the appropriate leg size after inflation. This ensures that the airbag fits the user's leg tightly after being worn, providing the necessary support and restraint for patients of different size requirements while maintaining wearing comfort and adaptability.

[0017] 3. In the present invention, during use, the drive control device includes a torque adjustment mechanism comprising a slide with a guide groove and a sliding block in a sliding connection; a mode conversion mechanism switches the rehabilitation training mode by rotating the chuck assembly; and an integrated interactive monitoring mechanism includes an interactive display window and an integrated monitoring sensor to display rehabilitation data in real time. Through streamlined design, configuration simulation and other modeling techniques, as well as sensory design such as the symbolism of strength and speed, and the experience of freedom and elegance, this invention not only provides users with practical rehabilitation functions, but also brings a unique aesthetic experience and spiritual comfort. It is mainly suitable for the auxiliary treatment of knee arthritis in the elderly, postoperative rehabilitation and sports injuries. 4. In the present invention, during use, when the chuck is rotated, the mode switching mechanism can be used to control the drive device to be in the start or stop state, and can switch the rehabilitation training mode of the drive device according to the patient's own rehabilitation needs. The PCB board is connected to the integrated interactive monitoring mechanism, and the mode switching mechanism includes: an interactive control window, an integrated monitoring sensor, and a breathable mesh, which passes through the calf and thigh fixing group and is connected in the middle of the thigh outer guard plate and the calf outer guard plate. When the interactive window is lightly touched, the integrated interactive monitoring mechanism can be used to monitor according to the patient's own rehabilitation needs through the integrated monitoring sensor and display the rehabilitation training effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the lightweight adjustable knee brace of the present invention; Figure 2 This is a front view of the lightweight adjustable knee brace of the present invention; Figure 3 A schematic diagram of the lightweight adjustable knee brace according to the present invention from a rear perspective; Figure 4 This is a diagram showing the bending state of the lightweight adjustable knee brace of the present invention; Figure 5A schematic diagram of the lightweight adjustable knee brace of the present invention being worn on a human body; Figure 6 This is a schematic diagram of the structure of the thigh fixing ring of the lightweight adjustable knee joint corrector of the present invention; Figure 7 This is a schematic diagram of the structure of the calf fixing ring of the lightweight adjustable knee brace of the present invention; Figure 8 This is a schematic diagram of the structure of the automatic flexion and extension connecting belt in the lightweight adjustable knee brace of the present invention; Figure 9 This is a schematic diagram of the joint seat structure of the lightweight adjustable knee brace of the present invention; Figure 10 This is a schematic diagram of the internal structure of the drive control device of the lightweight adjustable knee joint orthosis of the present invention; Figure 11 Schematic diagram of the structure of the mode conversion mechanism and the integrated interactive detection mechanism in the lightweight adjustable knee brace of the present invention; Figure 12 A schematic structural diagram of a chuck assembly of a mode conversion mechanism of a lightweight adjustable knee orthosis according to the present invention; Figure 13 This is a schematic structural diagram of the calf inflatable airbag of the lightweight adjustable knee brace of the present invention.

[0019] Legend: 1. Thigh fixing ring; 11. Thigh fixing strap; 12. Inner thigh inflatable airbag; 13. Thigh guard; 14. Outer thigh buckle; 15. Thigh "C" buckle; 16. Thigh elastic band; 17. Silicone slide; 2. Calf fixing ring; 21. Calf fixing strap; 22. Inner calf inflatable airbag; 23. Calf guard; 24. Outer calf buckle; 25. Calf "C" buckle; 26. Calf hoop; 3. Knee joint automatic flexion and extension connecting belt; 31. Joint box seat; 311. Joint box base plate; 312. Joint box cover plate; 313. Limiting slot; 314. Limiting hole; 315. Limiting protrusion; 316. Rotation center axis; 32. Upper box thigh fixing support belt; 321. Upper box Inner thigh fixing support belt; 322, upper box outer thigh fixing support belt; 33, lower box calf fixing support belt; 331, lower box inner calf fixing support belt; 332, lower box outer calf fixing support belt; 4, drive control device; 41, torque adjustment mechanism; 411, torque adjustment slide; 412, torque adjustment guide groove; 413, torque adjustment slider; 42, speed adjustment mechanism; 421, speed adjustment slide; 422, speed adjustment guide groove; 423, speed adjustment slider; 43, power supply module; 44, mode conversion mechanism; 441, chuck adjustment assembly; 45, integrated interactive monitoring mechanism; 451, interactive display window; 452, integrated monitoring sensor; 453, breathable mesh; 5, pad carrier. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figure 1-5 As shown, the present invention provides a lightweight adjustable knee joint corrector, including a thigh fixing ring sleeve 1, a calf fixing ring sleeve 2 is arranged below the thigh fixing ring sleeve 1, the thigh fixing ring sleeve 1 and the calf fixing ring sleeve 2 are connected by a knee joint automatic flexion and extension connecting belt 3, the outer side of the thigh fixing ring sleeve 1 is fixed and limited by a thigh fixing strap 11 and a thigh outer side buckle 14, the fixing method of the outer side of the calf fixing ring sleeve 2 is consistent with the fixing method of the outer side of the thigh fixing ring sleeve 1, and the relative limiting and fixing work on the corresponding limb is completed through the corresponding bayonet and fixing strap structure on the thigh and calf. The knee joint automatic flexion and extension connection belt 3 includes a joint box seat 31, an upper box thigh fixing support belt 32 is installed above the joint box seat 31, and a lower box calf fixing support belt 33 is installed below the joint box seat 31. The upper box thigh fixing support belt 32 and the lower box calf fixing support belt 33 are respectively connected up and down with the joint box seat 31 as the center and can rotate. The joint box seat 31 limits the range of joint flexion and extension angles. The upper box thigh fixing support belt 32 and the lower box calf fixing support belt 33 are also installed with a pad support 5, which is arranged on the thigh and calf frame. The pad support 5 can be, for example, a plastic element made of rigid plastic or a metal element. The pad support 5 can also be in the form of a preferably non-elastic but flexible element, such as a textile belt. The pad support 5 is thus preferably connected to the frame at at least two locations on the thigh and calf. In order to achieve improved stability, a drive control device 4 is further installed between the knee joint automatic flexion and extension connecting belt 3 and the pad carrier 5. The drive control device 4 integrates a torque adjustment mechanism 41, a speed adjustment mechanism 42, a power module 43, a mode conversion mechanism 44 and an integrated interactive monitoring mechanism 45, which together constitute a drive control module of the orthosis for controlling the movement parameters of the orthosis. When the lightweight adjustable knee joint corrector is actually used, the corrector structure is installed on the leg to be corrected, and the thigh guard 13 and the inner side are slidably connected with a silicone slide 17. The upper box thigh fixing support belt 32 is distributed on the outer side of the thigh fixing ring and is fixedly connected to the upper end of the silicone slide 17, so as to assist in the later leg bending. The inner side of the thigh guard 13 is installed with an inner thigh inflatable airbag 12. The thigh guard 13 has at least one fixing strap or belt placed around the thigh to fix the thigh ring on the thigh, so as to facilitate the relative position of the thigh in the thigh fixing ring 1. The above method is also used to fix the calf in the calf fixing ring 2. After the thigh and calf are relatively fixed, the thigh fixing ring 1 is connected to the calf fixing ring 2 with the cooperation of the knee joint automatic flexion and extension connecting belt 3 and the pad bearing 5. The calf fixing ring 2 is larger than the calf fixing ring 2. The leg fixing ring 1 has an additional calf hoop 26 structure to fix the calf; the thigh fixing ring 1 and the calf fixing ring 2 are both equipped with an inflatable airbag structure, which adapts to the limbs after inflation, and connects the thigh fixing ring 1 and the calf fixing ring 2 through the knee joint automatic flexion and extension connecting belt 3 structure. The knee joint automatic flexion and extension connecting belt 3 consists of an upper box thigh fixing support belt 32, a joint box seat 31 and a lower box calf fixing support belt 33. The overall shape is bionic cheetah thigh joint structure design with a natural and smooth curved surface shape. The flexion function is achieved by the knee joint automatic flexion and extension connecting belt 3 in conjunction with the thigh fixing ring 1 and the calf fixing ring 2 structure. The inner sides of the thigh and calf fixing rings 2 are slidably connected to the silicone slide 17 for fixing the position of the thigh and calf and improving wearing comfort; the inflatable airbag is flat when at rest and expands to fit the leg size after inflation. To ensure that the inflatable device fits snugly around the user's leg after being worn, it provides the necessary support and restraint for patients of varying sizes while maintaining comfort and adaptability. The drive control device 4 includes a torque adjustment mechanism 41 comprising a slide with a guide groove and a sliding slider; a mode conversion mechanism 44 switches rehabilitation training modes by rotating a chuck assembly; and an integrated interactive monitoring mechanism 45 comprising an interactive display window 451 and an integrated monitoring sensor 452 for real-time display of rehabilitation data. Through streamlined design, configuration simulation, and sensory design techniques such as symbolism of strength and speed, and the experience of freedom and elegance, this invention not only provides users with practical rehabilitation functions but also offers a unique aesthetic experience and spiritual comfort. It is primarily suitable for the auxiliary treatment of knee arthritis in the elderly, postoperative rehabilitation, and sports injuries. The corrector structure employed in this invention improves the convenience, comfort, and personalization of knee joint orthoses. Users can easily adjust the tightness and range of motion of the orthosis according to their own rehabilitation needs and under the guidance of a doctor, achieving a personalized rehabilitation plan. At the same time, the intelligent adjustment system and ergonomic design further enhance the user's wearing comfort and rehabilitation effect. With "ergonomics + intelligent interaction" as the core concept, breakthrough innovations are made to address the two major pain points of poor adaptability and low aesthetics of traditional orthotics.The main body adopts a three-dimensional lattice structure generated by a topology optimization algorithm, and achieves the unity of lightweight (weight <300g) and high strength through 3D printing. Compared with traditional metal brackets, it reduces weight by 40% while maintaining equivalent support performance, which can effectively provide patients with a more comfortable experience. The overall structural space layout is reasonable and easy to install and maintain.

[0023] Example 1 like Figure 6-7 As shown, the structure of the thigh fixing ring sleeve 1 and the calf fixing ring sleeve 2, the thigh fixing ring sleeve 1 includes a thigh guard plate 13, the inner side of the thigh guard plate 13 is slidably connected with a silicone slide plate 17, the upper thigh fixing support belt 32 is distributed on the outer side of the thigh fixing ring sleeve and is fixedly connected to the upper end of the silicone slide plate 17, the inner side of the thigh guard plate 13 is installed with an inner thigh inflatable airbag 12, the thigh guard plate 13 has at least one fixing strap or belt placed around the thigh to fix the thigh ring sleeve on the thigh, the fixing strap connection is completed by the thigh Japanese-style ring buckle 15 and the thigh elastic band 16, the upper box thigh fixing support belt 32 also includes an upper box inner thigh fixing support belt 321 and an upper box outer thigh fixing support belt 322, the calf fixing The fixed ring sleeve 2 is arranged on the lower side of the thigh fixing ring sleeve 1, and the calf fixing ring sleeve 2 includes a calf guard plate 23, and a silicone slide plate 17 is slidably connected to the inner side of the calf guard plate 23. The calf fixing ring sleeve 2 is arranged on the calf, and one end thereof is fixedly connected to the bottom end of the silicone slide plate 17. The calf fixing ring sleeve 2 includes a calf fixing strap 21, an inner calf inflatable airbag 22, a calf Japanese-style ring buckle 25 and an outer calf buckle 24. The structure is consistent with the limiting structure of the thigh fixing ring sleeve 1, but the difference is that the calf fixing ring sleeve 2 also includes a calf hoop 26, which is used to fit the back of the calf. The lower box calf fixing support belt 33 also includes a lower box inner calf fixing support belt 331 and a lower box outer calf fixing support belt 332. When the thigh fixing ring sleeve 1 and the calf fixing ring sleeve 2 in this embodiment are actually used, the inner thigh fixing support belt 321 of the upper box is connected to the thigh guard 13 by T-shaped screws and semi-open fixed slide rails, and a silicone slide plate 17 is slidably connected to the inner side of each thigh guard 13; the bottom end of the outer thigh fixing support belt 322 of the upper box is fixedly connected to a limiting hole 314 connected to the T-shaped through-slot slide rail, and the limiting slot 313 is inserted into the limiting hole 314, and the outer thigh fixing support belt 322 of the upper box and the inner thigh fixing support belt 321 of the upper box are buckled together to form the upper box thigh fixing support belt 32 to realize the flexion function. The inner side calf fixing support belt 331 of the lower box is connected to the calf guard 23 through T-shaped screws and semi-open fixed slide rails, and a silicone slide plate 17 is slidably connected to the inner side of each calf guard 23; the upper end of the outer side calf fixing support belt 332 of the lower box is fixedly connected to a limiting hole 314 connected to the T-shaped through-slot slide rail, and the limiting slot 313 is inserted into the limiting hole 314. The outer side calf fixing support belt 332 of the lower box and the inner side calf fixing support of the lower box are buckled together to form the lower box calf fixing support belt 33 to realize the flexion function. The flexion function at the calf position is basically the same as the implementation method of the flexion function at the calf position.

[0024] Example 2 like Figure 8-9 As shown, the joint box seat 31 is composed of a box seat and a cover plate that are buckled together. The box seat is provided with a limiting groove 313 and a symmetrically distributed limiting protrusion 315. The upper box thigh fixing support belt 32 and the lower box calf fixing support belt 33 are penetrated by a rotation center axis 316, forming a 0°-135° flexion and extension limit space, so as to realize the rotation around the axis of the upper box thigh fixing support belt 32 and the lower box calf fixing support belt 33. The effect achieved by the entire embodiment 2 is that, during use, the gap between the rotating central axis 316 and the base plate of the joint box seat 31 is used to ensure their relative movement; in addition, the two limiting connecting protrusions arranged on both sides of the center column enable the upper rotation limiting space and the lower rotation limiting space to be formed at the top and bottom ends of the joint box seat 31 respectively after the end cover plate of the joint box seat 31 and the joint box base plate 311 are buckled together, which can realize the joint bending movement while limiting the relative range of uprightness, thereby playing a role in protecting the joint.

[0025] Example 2 like Figure 10-12As shown, the structure of the drive control device 4, the torque adjustment mechanism 41 includes a torque adjustment slide 411, the torque adjustment slide 411 is arranged at the upper end of the upper box thigh fixed support belt 32, and the torque adjustment slide 411 is also provided with a torque adjustment guide groove 412; a slidable torque adjustment slider 413 is provided in the torque adjustment guide groove 412, and the torque adjustment slider 413 passes through the torque adjustment guide groove 412 from one end of the torque adjustment slide 411, and the speed adjustment mechanism 42 includes a speed adjustment slide 421, the speed adjustment slide 421 is arranged in the upper box thigh fixed support belt 32, and the speed adjustment slide 421 is also provided with The speed adjustment guide groove 422 is provided with a slidable speed adjustment slider 423, and the speed adjustment guide groove 422 is penetrated from one end of the speed adjustment slide 421. The power supply module 43 includes a power supply and a switch, which is arranged in the joint box seat 31 of the knee joint automatic flexion and extension connecting belt 3 and is electrically connected to the drive control device 4 for power supply. The mode conversion mechanism 44 is arranged on the knee joint automatic flexion and extension connecting belt 3 and is connected to the PCB board. The mode switching mechanism includes: a chuck adjustment component 441, which passes through the upper and lower leg fixing groups and is exposed between the upper box thigh fixing support belt 32 and the lower box calf fixing support belt 33. The effect achieved by the entire embodiment 2 is that, in use, when the chuck is rotated, the mode switching mechanism can be used to control the drive device to be in the start or stop state, and the rehabilitation training mode of the drive device can be switched according to the patient's own rehabilitation needs. The integrated interactive monitoring mechanism 45 is connected to the PCB board, and the mode switching mechanism includes: an interactive control window, an integrated monitoring sensor 452, and a breathable mesh 453, which passes through the calf and thigh fixing group and is connected in the middle of the thigh outer guard plate and the calf outer guard plate. When the interactive window is lightly touched, the integrated interactive monitoring mechanism 45 can be used to monitor according to the patient's own rehabilitation needs through the integrated monitoring sensor 452 and display the rehabilitation training effect of the device.

[0026] Example 3 like Figure 13 As shown, the fabric inflatable airbag includes: an inner thigh inflatable airbag 12 and an inner calf inflatable airbag 22. The material of the fabric airbag is polyphthalamide, which is easy to use; The effect achieved by the entire embodiment 2 is that, during use, the airbag is flat when at rest; during operation, the gas expands, the thickness increases, and a thin airbag is formed, which is expanded within a comfortable range according to the size of the patient's leg, meeting the needs of different users. The pad carrier 5 is arranged on the thigh and calf frame. The pad carrier 5 can be, for example, a plastic element made of rigid plastic or a metal element. The pad carrier 5 can also be in the form of a preferably non-elastic but flexible element, such as a textile belt. The pad carrier 5 is thus preferably connected to the frame at at least two locations on the thigh and calf. This achieves improved stability.

[0027] Working principle: The corrector structure is installed on the leg to be corrected, and a silicone slide is slidably connected to the thigh guard and the inner side. The upper thigh fixed support belt is distributed on the outside of the thigh fixed ring and is fixedly connected to the upper end of the silicone slide to assist in the later leg bending. An inner thigh inflatable airbag is installed on the inner side of the thigh guard. The thigh guard has at least one fixed strap or belt placed around the thigh to fix the thigh ring on the thigh, so as to facilitate the relative position of the thigh in the thigh fixed ring. The above method is also used to fix the calf in the calf fixed ring. After the thigh and calf are relatively fixed, the thigh fixed ring is connected to the calf fixed ring with the cooperation of the knee joint automatic flexion and extension connecting belt and the pad bearing. The calf fixed ring is more than the thigh fixed ring. The calf hoop structure is installed to fix the calf; the thigh fixing ring and the calf fixing ring are both equipped with inflatable airbag structures, which adapt to the limbs after inflation, and are connected by the knee joint automatic flexion and extension connecting belt structure. The knee joint automatic flexion and extension connecting belt is composed of an upper box thigh fixing support belt, a joint box seat and a lower box calf fixing support belt. The overall shape is bionic cheetah thigh joint structure design with natural and smooth curved surface shape. The flexion function is achieved by the knee joint automatic flexion and extension connecting belt, the thigh fixing ring, and the calf fixing ring structure. The inner sides of the thigh and calf fixing rings are slidably connected to silicone slides for fixing the position of the thigh and calf and improving wearing comfort; the inflatable airbag is flat when at rest, and expands to fit the leg size after inflation. It ensures that after being worn, it can fit the user's legs tightly through inflation, providing necessary support and restraint for patients with different size requirements, while maintaining comfort and adaptability. The drive control device includes a torque adjustment mechanism including a slide with a guide groove and a slider with a sliding connection; the mode conversion mechanism switches the rehabilitation training mode by rotating the chuck assembly; the integrated interactive monitoring mechanism includes an interactive display window and an integrated monitoring sensor, which displays rehabilitation data in real time. Through streamlined design, configuration simulation and other modeling techniques, as well as sensory-level designs such as symbols of strength and speed, and experiences of freedom and elegance, the invention not only provides users with practical rehabilitation functions, but also brings a unique aesthetic experience and spiritual comfort. It is mainly suitable for auxiliary treatment of knee arthritis in the elderly, postoperative rehabilitation and sports injuries.

Claims

1. A lightweight adjustable knee joint corrector, comprising a thigh fixing ring (1), a calf fixing ring (2) being provided below the thigh fixing ring (1), the thigh fixing ring (1) and the calf fixing ring (2) being connected via a knee joint automatic flexion and extension connecting belt (3), characterized in that: The outer side of the thigh fixing ring (1) is fixed and limited by the thigh fixing strap (11) in conjunction with the outer side thigh buckle (14). The fixing method of the outer side of the calf fixing ring (2) is consistent with the fixing method of the outer wall of the thigh fixing ring (1). The knee joint automatic flexion and extension connecting belt (3) includes a joint box seat (31). An upper box thigh fixing support belt (32) is installed above the joint box seat (31). A lower box calf fixing support belt (33) is installed below the joint box seat (31). The upper box thigh fixing support belt (32) and the lower box calf fixing support belt (33) are respectively arranged with the joint box seat (31) as the center. The upper and lower parts of the knee joint are connected and can perform rotational movement. The joint box seat (31) limits the flexion and extension angle range of the joint. A pad support member (5) is also installed on the upper box thigh fixing support belt (32) and the lower box calf fixing support belt (33). A drive control device (4) is also installed between the knee joint automatic flexion and extension connection belt (3) and the pad support member (5). The drive control device (4) is integrated with a torque adjustment mechanism (41), a speed adjustment mechanism (42), a power supply module (43), a mode conversion mechanism (44) and an integrated interactive monitoring mechanism (45), which together constitute a drive control module of the orthosis for controlling the movement parameters of the orthosis.

2. The lightweight adjustable knee brace according to claim 1, characterized in that: The thigh fixing ring sleeve (1) includes a thigh guard plate (13), and a silicone slide plate (17) is slidably connected to the inner side of the thigh guard plate (13). The upper box thigh fixing support belt (32) is distributed on the outer side of the thigh fixing ring sleeve (1) and is fixedly connected to the upper end of the silicone slide plate (17). The inner side of the thigh guard plate (13) is installed with an inner thigh inflatable airbag (12). The thigh guard plate (13) has at least one fixing strap or belt placed around the thigh, and the fixing strap connection is completed by the thigh Japanese-shaped ring buckle (15) and the thigh elastic band (16). The upper box thigh fixing support belt (32) also includes an upper box inner thigh fixing support belt (321) and an upper box outer thigh fixing support belt (322).

3. The lightweight adjustable knee brace according to claim 1, characterized in that: The calf fixing ring sleeve (2) is arranged on the lower side of the thigh fixing ring sleeve (1), and the calf fixing ring sleeve (2) includes a calf guard plate (23). The inner side of the calf guard plate (23) is slidably connected to a silicone slide plate (17). The calf fixing ring sleeve (2) is arranged on the calf, and one end thereof is fixedly connected to the bottom end of the silicone slide plate (17). The calf fixing ring sleeve (2) includes a calf fixing strap (21), an inflatable airbag on the inner side of the calf (22), a calf Japanese-style ring buckle (25) and a calf outer side buckle (24). The structure is consistent with the limiting structure in the thigh fixing ring sleeve (1), except that the calf fixing ring sleeve (2) also includes a calf hoop (26), and the calf hoop (26) is used to fit the back side of the calf. The lower box calf fixing support belt (33) also includes a lower box inner side calf fixing support belt (331) and a lower box outer side calf fixing support belt (332).

4. The lightweight adjustable knee brace according to claim 2, characterized in that: The inner thigh fixing support belt (321) of the upper box is connected to the thigh guard (13) by means of a T-shaped screw and a semi-open fixed slide rail, and a silicone slide plate (17) is slidably connected to the inner side of each thigh guard (13); the bottom end of the outer thigh fixing support belt (322) of the upper box is fixedly connected to a limiting hole (314) connected to the T-shaped through-slot slide rail, and the limiting slot (313) is inserted into the limiting hole (314), and the outer thigh fixing support belt (322) of the upper box and the inner thigh fixing support belt (321) of the upper box are buckled together to form the upper thigh fixing support belt (32) to realize the flexion function.

5. The lightweight adjustable knee brace according to claim 3, characterized in that: The lower box inner calf fixing support belt (331) is connected to the calf guard plate (23) through a T-shaped screw and a semi-open fixed slide rail, and a silicone slide plate (17) is slidably connected to the inner side of each calf guard plate (23); the upper end of the lower box outer calf fixing support belt (332) is fixedly connected to a limiting hole (314) connected to the T-shaped through-slot slide rail, and the limiting slot (313) is inserted into the limiting hole (314). The lower box outer calf fixing support belt (332) and the lower box inner calf fixing support are buckled together to form the lower box calf fixing support belt (33) to achieve the flexion function.

6. The lightweight adjustable knee brace according to claim 1, characterized in that: The joint box seat (31) is composed of a box seat and a cover plate that are buckled together. The box seat is provided with a limiting groove (313) and symmetrically distributed limiting protrusions (315). The upper box thigh fixing support belt (32) and the lower box calf fixing support belt (33) are penetrated by a rotation center axis (316), forming a flexion and extension limiting space of 0°-135°, thereby realizing the rotation of the upper box thigh fixing support belt (32) and the lower box calf fixing support belt (33) around the axis; at the same time, the gap between the rotation center axis (316) and the base plate of the joint box seat (31) is used to ensure their relative movement; in addition, two limiting connection protrusions are arranged on both sides of the center column, so that after the end cover plate of the joint box seat (31) and the joint box base plate (311) are buckled together, an upper rotation limiting space and a lower rotation limiting space can be formed at the top and bottom ends of the joint box seat (31), respectively, so that the joint bending movement can be realized while limiting the relative range of uprightness, thereby playing a role in joint protection.

7. The lightweight adjustable knee brace according to claim 1, characterized in that: The torque adjustment mechanism (41) comprises a torque adjustment slide (411), the torque adjustment slide (411) being arranged at the upper end of the upper box thigh fixing support belt (32), and the torque adjustment slide (411) being further provided with a torque adjustment guide groove (412); a slidable torque adjustment slider (413) being provided in the torque adjustment guide groove (412), and the torque adjustment slider (413) passing through the torque adjustment guide groove (412) from one end of the torque adjustment slide (411).

8. The lightweight adjustable knee brace according to claim 1, characterized in that: The speed adjustment mechanism (42) includes a speed adjustment slide (421), the speed adjustment slide (421) is arranged in the upper box thigh fixing support belt (32), and the speed adjustment slide (421) is also provided with a speed adjustment guide groove (422); the speed adjustment guide groove (422) is provided with a slidable speed adjustment slider (423), and the speed adjustment guide groove (422) is penetrated from one end of the speed adjustment slide (421), and the power supply module (43) includes a power supply and a switch, which is arranged in the joint box seat (31) of the knee joint automatic flexion and extension connecting belt (3) and is electrically connected to drive the control device (4) Power supply, the mode conversion mechanism (44) is arranged in the knee joint automatic flexion and extension connection belt (3) and is internally connected to the PCB board. The mode switching mechanism includes: a chuck adjustment component (441), which runs through the upper and lower leg fixing groups and is exposed in the middle of the upper box thigh fixing support belt (32) and the lower box calf fixing support belt (33); the integrated interactive monitoring mechanism (45) is internally connected to the PCB board. The mode switching mechanism includes: an interactive control window, an integrated monitoring sensor (452), and a breathable mesh (453), which runs through the upper and lower leg fixing groups and is connected in the middle of the thigh outer guard plate and the calf outer guard plate.

9. The lightweight adjustable knee brace according to claim 1, characterized in that: The pad carrier (5) is arranged on the thigh-calf frame. The pad carrier (5) can be a plastic element made of rigid plastic or a metal element, for example.

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