Noninvasive knee joint osteoarthropathy correction device

Abstract

The invention discloses a noninvasive knee joint osteoarthropathy correction device, and relates to the technical field of medical instruments, the noninvasive knee joint osteoarthropathy correction device comprises a waist fixing belt, a thigh fixing plate and a shank fixing plate, and a plurality of leg bandages are fixed on the thigh fixing plate and the shank fixing plate; an adjusting correction mechanism for noninvasive correction of knee joints is arranged between the thigh fixing plate and the shank fixing plate, and a power assisting mechanism for assisting walking is arranged on the waist fixing belt; the rotation angle between the thigh fixing plate and the first adjusting plate and the rotation angle between the shank fixing plate and the second adjusting plate are adjusted through adjusting bolts, the supporting effect of an air bag capable of being automatically inflated and adjusted on the knee joint of a patient is combined, so that the whole leg is corrected, and a driving motor is combined with an intermittent meshing gear structure to drive a swing rod to rotate; further, the leg bandage at the topmost part is driven to rotate to assist the walking of the patient; the device has the advantages of being good in correction effect, comprehensive in function, high in reliability, simple in structure and convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a non-invasive knee osteoarthropathy correction device. Background Art

[0002] Secondary knee osteoarthropathy mostly occurs in knee varus and knee valgus deformities. The most obvious symptom is that it causes the patient to form O-shaped legs and X-shaped legs. At the same time, due to stress concentration at the knee joint, degenerative changes occur in the articular cartilage, as well as meniscus tears, ligament injuries, patellar chondromalacia, osteochondritis dissecans, etc. This is because problems occur in the joint capsule, medial collateral ligament (or lateral collateral ligament), medial meniscus (or lateral meniscus), cruciate ligament, iliotibial tract, etc. that maintain the stability of the knee joint. The knee joint loses stability in a certain direction, the stress distribution in the joint space is abnormal, and the internal stress distribution in the cartilage is uneven. As a result, local cartilage degeneration and joint space deviation occur, exacerbating knee varus or knee valgus, and further increasing the pressure at some points within the joint, causing the patient pain when walking and inconvenient movement, seriously affecting the patient's quality of life.

[0003] Currently, some correction products for knee diseases have emerged. However, most of these products correct the deformed knee joint in a fixed manner and cannot adapt to patients with different degrees of knee joint recovery. Patients with more severe knee joint deformities are prone to feel pain when using them, with poor comfort. In severe cases, it may even cause secondary injuries. In addition, the existing devices also have problems of complex structure and inconvenient use. It is inconvenient for patients to walk when using them, and they cannot assist the patient in walking.

[0004] For existing knee correction devices, such as a knee osteoarthropathy correction device provided in the publication number CN118490432A, which includes two arc-shaped elastic splints. One end of the outer walls of the bottoms of the two arc-shaped elastic splints adjacent to each other is fixedly provided with a support plate. On one side of the two arc-shaped elastic splints, there are three first semi-arc-shaped splints and second semi-arc-shaped splints. A semi-arc-shaped positioning plate is fixedly provided between adjacent first semi-arc-shaped splints and adjacent second semi-arc-shaped splints. The outer wall of the semi-arc-shaped positioning plate is provided with equally spaced internal threaded holes, and the inner walls of the internal threaded holes are screwed with fastening bolts. This application mainly drives the extrusion ball to squeeze the fixed block by using the fastening bolt, and then drives the arc-shaped plate to squeeze the patient's calf to achieve the purpose of correcting the patient's calf. However, since this application does not design a targeted structure for the deformation at the knee joint and only corrects the angle between the thigh and the calf, it is easy to cause discomfort to the patient and even exacerbate the pathological conditions at the patient's knee joint. Summary of the Invention

[0005] In view of the above problems, the present invention aims to provide a non-invasive knee osteoarthrosis correction device. By designing an adjustment and correction mechanism, adjustment plate structures are provided on the thigh fixing plate and the calf fixing plate, and the angle is adjusted by bolts, enabling the device to be adjusted and fixed according to the overall shape of the patient's leg, thereby gradually correcting the patient's leg shape. In combination with the knee support part, a gas-filled airbag that can automatically replenish gas provides support to the patient's knee joint to assist in the overall correction of the patient's leg. By designing an assisting mechanism, a gear structure periodically drives the swing rods on both sides to pull the front side of the patient's thigh to assist the patient in walking forward. It has the advantages of good correction effect, comprehensive functions, strong reliability, simple structure, and easy use.

[0006] The main idea of the technical solution adopted by the present invention: Design an adjustment and correction mechanism. By setting a first adjustment plate and a second adjustment plate between the thigh fixing plate and the calf fixing plate, and adjusting the angles between the thigh fixing plate and the first adjustment plate, and between the calf fixing plate and the second adjustment plate respectively through bolt structures to correct the patient's leg shape. At the same time, a knee support part is provided at the connection between the first adjustment plate and the second adjustment plate, and an airbag that can automatically replenish gas is used to assist in supporting the outer side of the patient's knee joint; design an assisting mechanism, drive the gear structure through a motor, and periodically drive two swing rods to pull the top leg strap, thereby pulling the front side of the patient's thigh forward to provide an assisting effect for the patient's walking.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A non-invasive knee osteoarthrosis correction device, including a waist fixing belt, a thigh fixing plate, and a calf fixing plate. A plurality of leg straps are fixed on both the thigh fixing plate and the calf fixing plate. An adjustment and correction mechanism for non-invasively correcting the knee joint is provided between the thigh fixing plate and the calf fixing plate. A assisting mechanism for assisting the patient to walk is also provided on the waist fixing belt.

[0008] The adjustment and correction mechanism includes an adjustment component. The adjustment component includes a first adjustment plate and a second adjustment plate rotatably connected through a rotating member. Adjustment bolts for adjusting the angle are provided at the rotational connection between the first adjustment plate and the thigh fixing plate, and at the rotational connection between the second adjustment plate and the calf fixing plate. By turning the adjustment bolts, the relative angles between the thigh fixing plate and the first adjustment plate, and between the calf fixing plate and the second adjustment plate are adjusted to precisely adjust the angle between the patient's thigh and calf in combination with the shape of the patient's leg.

[0009] Based on the above technical solution, further, it further includes a knee joint support portion disposed at the rotational connection of the first adjustment plate and the second adjustment plate. The knee joint support portion includes an airbag fixed to the second adjustment plate. A gas storage cavity is formed on the second adjustment plate. A piston plate tightly fitted with the inside of the gas storage cavity is fixed on the first adjustment plate. The gas storage cavity is communicated with the airbag through a flexible air pipe. When the patient walks, it can drive the first adjustment plate and the second adjustment plate to rotate forward relative to each other. The piston plate can squeeze the air in the gas storage cavity into the airbag, so that the airbag maintains a fixed filling state and supports the patient's knee joint.

[0010] Based on the above technical solution, further, it further includes an automatic adjustment portion for supplementing or discharging gas into the gas storage cavity. The automatic adjustment portion includes a first air valve. A sealing ball is elastically disposed in the first air valve. A second air valve is further provided on the gas storage cavity. A third air valve for preventing gas from flowing back into the gas storage cavity is further provided at the connection of the gas storage cavity or the airbag and the flexible air pipe. When the first adjustment plate and the second adjustment plate rotate reversely relative to each other, the piston plate forms a negative pressure effect in the gas storage cavity and sucks the sealing ball in the first air valve towards the direction close to the gas storage cavity, so that external air enters the gas storage cavity through the first air valve. When the first adjustment plate and the second adjustment plate rotate again, the air in the gas storage cavity is conveyed into the airbag through the piston plate. When the airbag is completely filled, the excess air is discharged through the second air valve.

[0011] Based on the above technical solution, further, a torsion spring is fixed at the connection of the first adjustment plate and the second adjustment plate. The torsion spring can be compressed when the first adjustment plate and the second adjustment plate rotate forward relative to each other, that is, when the patient's thigh is lifted and the thigh and the calf are bent relative to each other, and releases elastic potential energy when the first adjustment plate and the second adjustment plate rotate forward relative to each other, thereby promoting the relative unfolding of the patient's thigh and calf to further assist the patient in walking.

[0012] The assisting mechanism includes a housing fixed to the waist fixing belt. An asynchronous bidirectional driving motor is fixed in the housing. The driving motor can drive a swing rod to rotate through an intermittent transmission assembly. The intermittent transmission assembly includes a driving gear fixed on the power shafts at both ends of the driving motor. The driving gear is meshed and connected with a first driven gear rotatably disposed in the housing. The first driven gear is meshed and connected with the swing rod in the form of an intermittent meshing gear. One end of the swing rod away from the first driven gear is rotatably connected with the leg binding belt closest to the waist fixing belt.

[0013] Based on the above technical solution, further, a battery for supplying power to the driving motor is further provided in the housing, and a switch for controlling the driving motor is further provided on the housing.

[0014] A method for using a non-invasive knee osteoarthrosis correction device, comprising the following steps: S1. The patient wears this correction device, adjusts the overall position of the device so that the airbag fits against the patient's knee joint, then uses multiple leg straps to fix the device to the patient's entire leg, and fixes the device to the patient's waist through a waist fixing strap; S2. According to the patient's leg shape and the recovery condition at the knee joint, rotate the adjustment bolt to precisely adjust the relative angles between the thigh fixing plate and the first adjustment plate, and between the calf fixing plate and the second adjustment plate. Combining the supporting effect of the airbag on the patient's knee joint, correct the patient's leg shape; S3. When the patient is walking, start the driving motor, and periodically drive the two side swing rods through the intermittent transmission component to pull the uppermost leg strap forward and upward to provide assistance for the patient's leg to assist in walking forward.

[0015] The beneficial effects of the present invention are: 1. By designing an adjustment and correction mechanism, by providing a first adjustment plate and a second adjustment plate respectively rotatably connected to the thigh fixing plates and the calf fixing plates on both sides, adjusting the connection angle through the adjustment bolt, and combining the support of the airbag on the knee joint, the fixing plate, the adjustment plate and the airbag act together to correct patients with deformed knee joints. The rotation angle between the fixing plate and the adjustment plate can be precisely controlled through the adjustment bolt to be flexibly adjusted according to the deformation degree of different patients' knee joints, having the advantage of good correction effect.

[0016] 2. By designing a knee joint support part, the airbag provides auxiliary support for the knee joints of the patient's two legs towards the center, making the patient's entire leg more closely attached to the thigh fixing plate, the first adjustment plate, the second adjustment plate and the calf fixing plate, thereby improving the correction effect. At the same time, by providing an automatic air intake part, external air is pumped into the air storage cavity through the first air valve, and the excess air is discharged through the second air valve. Combining the sliding action of the piston plate relative to the air storage cavity, the airbag can always be in a fully inflated state to maintain the support effect on the knee joint, making the present invention highly reliable.

[0017] 3. By designing an assisting mechanism, the driving motor located at the waist drives the two side swing rods to rotate in a periodic form through a gear structure, and then drives the uppermost leg strap to rotate forward and upward to lift the patient's thigh forward and upward to provide assistance when the patient is walking. In addition, by providing a torsion spring at the rotation connection of the first adjustment plate and the second adjustment plate, it can also provide a certain elastic force for the bending of the patient's calf when walking to further assist the patient in normal walking.

[0018] 4. The overall structure of the present invention is simple, and the structural design conforms to the human body structure, facilitating the patient to wear and being able to adapt to patients of different body types. At the same time, by rotating the adjustment bolts on both sides, the entire device can be driven to correct the patient's legs, or according to the actual needs during the patient's walking, the driving motor can be selected to start to assist walking, making the present invention also have the advantage of convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a front view of the present invention; Figure 3 is a side view of the present invention; Figure 4 is Figure 1 a partial detail view at A in Figure 5 is Figure 1 a partial detail view at B in Figure 6 is a three-dimensional structural schematic diagram of the knee joint support part; Figure 7 is a three-dimensional structural schematic diagram of the first adjusting plate; Figure 8 is a three-dimensional structural schematic diagram of the second adjusting plate; Figure 9 is a cross-sectional view of the first air valve in the normal state; Figure 10 is a cross-sectional view of the second air valve in the normal state; Figure 11 is a cross-sectional view of the first air valve in the air intake state; Figure 12 is a cross-sectional view of the second air valve in the air release state; Figure 13 is a three-dimensional structural schematic diagram of the boosting mechanism; Figure 14 is Figure 13 a partial detail view at C in Figure 15 is a three-dimensional structural schematic diagram of the first driven gear.

[0020] Wherein: 1. Waist fixing band; 2. Thigh fixing plate; 3. Calf fixing plate; 4. Leg strap; 5. Adjusting and correcting mechanism; 501. First adjusting plate; 502. Second adjusting plate; 503. Adjusting bolt; 504. Knee joint supporting part; 5041. Airbag; 5042. Air storage cavity; 5043. Piston plate; 5044. Flexible air pipe; 505. Automatic adjusting part; 5051. First air valve; 50511. Sealing ball; 50512. Sealing ball return spring; 5052. Second air valve; 50521. Sealing piston; 50522. Sealing piston return spring; 5053. Third air valve; 506. Torsion spring; 6. Boosting mechanism; 601. Housing; 602. Driving motor; 603. Driving gear; 604. First driven gear; 605. Swing rod; 606. Battery; 607. Switch; 608. Second driven gear; 7. Connecting band. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0022] The inventor's research found that in the correction of knee joint diseases, most of the existing knee joint correction devices correct the deformed knee joint by a fixed method, which cannot adapt to patients with different degrees of knee joint recovery. Patients with more serious knee joint deformities are likely to feel pain when using it, with poor comfort, and even cause secondary injuries in severe cases. In addition, the existing devices also have problems of complex structure and inconvenient use. It is inconvenient for patients to walk when using them, and they cannot assist patients in walking, with relatively single functions.

[0023] Based on the above findings, the present application proposes a non-invasive knee osteoarthrosis correction device, designs an adjustment and correction mechanism, by arranging a first adjustment plate and a second adjustment plate which are rotatably connected to each other between the thigh fixing plate and the calf fixing plate, and adjusting the angles at the joints between the thigh fixing plate and the first adjustment plate, and between the calf fixing plate and the second adjustment plate respectively through bolt structures, so as to correct the patient's leg shape. At the same time, by arranging a knee joint support part at the joint of the first adjustment plate and the second adjustment plate, the outer side of the patient's knee joint is supported by an airbag, and an automatic adjustment part provides sufficient gas for the airbag to keep the airbag in a fully inflated state; designs an assisting mechanism, which drives a gear structure on both sides through a driving motor, and then periodically drives two swing rods to pull the top leg strap, and then pulls the patient's thigh forward to provide an assisting effect for the patient's walking; has the advantages of good correction effect, comprehensive functions, strong reliability, simple structure and easy use.

[0024] Referring to Figures 1-3 , the present application discloses a non-invasive knee osteoarthrosis correction device, including a waist fixing belt 1. The waist fixing belt 1 is a cloth or leather belt structure with high strength. When the patient wears the device on the leg, it can be fixed to the waist through the waist fixing belt 1. In actual implementation, a buckle can also be set at the joint between the waist fixing belt 1 and the back side of the patient's waist to improve the fixing effect.

[0025] On both sides of the waist fixing belt 1, that is, at the joints with both sides of the patient's waist, vertical thigh fixing plates 2 are connected through a connecting belt 7 in a sewing or bolt fixing manner. The thigh fixing plates 2 and the calf fixing plates 3 are connected through an adjustment and correction mechanism 5. In an implementation scheme of the present invention, both the thigh fixing plates 2 and the calf fixing plates 3 are made of flat aluminum alloy plates with high strength. Multiple leg straps 4 are also fixed on the two side thigh fixing plates 2 and the calf fixing plates 3 to fix the patient's thigh and calf to the thigh fixing plates 2 and the calf fixing plates 3 respectively, and the adjustment and correction mechanism 5 is used to correct patients with knee osteoarthrosis.

[0026] Referring to Figure 4 and Figure 5 , the adjustment and correction mechanism 5 includes a first adjustment plate 501 and a second adjustment plate 502. In some implementation schemes, inclined structures at a certain angle with the whole plate are respectively arranged at the bottom of the thigh fixing plate 2 and the top of the calf fixing plate 3. By setting hinge shafts on the inclined structures, the bottom of the thigh fixing plate 2 is rotatably connected to the top of the first adjustment plate 501, and the bottom of the second adjustment plate 502 is rotatably connected to the top of the calf fixing plate 3; Meanwhile, at the hinge joints between the thigh fixing plate 2 and the first adjusting plate 501, and between the calf fixing plate 3 and the second adjusting plate 502, adjusting bolts 503 for adjusting and limiting the opening and closing angles of the hinge joints are provided. In an embodiment of the present invention, the number of the adjusting bolts 503 is four, and each adjusting bolt 503 is threadedly connected to the first adjusting plate 501 or the second adjusting plate 502 and respectively penetrates through the inclined structures on the thigh fixing plate 2 or the calf fixing plate 3. Meanwhile, roller structures are rotatably provided on both sides of one end of the adjusting bolt 503 penetrating through the inclined structure. The roller structures can not only limit the angles between the respective fixing plates and the adjusting plates, but also facilitate the screwing of the adjusting bolts 503; When the adjusting bolt 503 moves away from the first adjusting plate 501 or the second adjusting plate 502, the angle between the thigh fixing plate 2 and the first adjusting plate 501, and the angle between the calf fixing plate 3 and the second adjusting plate 502 can be gradually adjusted from a state with a certain angle to a state where they are in a straight line. When the patient wears this correction device and uses the leg strap 4 to fix the whole leg, the whole leg can be corrected by rotating the adjusting bolt 503 in the above manner. In addition, by rotating the adjusting bolt 503, the angles between the respective adjusting plates and the fixing plates can be adjusted with a quite fine adjustment distance. Therefore, the correction device provided by the present invention can be corrected with high precision according to the different degrees of overall deformation of the patient's leg when in use, preventing the patient's use experience from decreasing due to excessive adjustment angle, and even preventing secondary injuries to the patient's leg or knee joint, having good safety.

[0027] A knee joint support portion 504 is further provided at the rotation connection between the first adjusting plate 501 and the second adjusting plate 502. Refer to 6- Figure 8 The overall structures of the first adjusting plate 501 and the second adjusting plate 502 are relatively close. The two are rotationally connected through a shaft structure located in the middle and cooperating with each other, enabling the patient to walk normally when wearing this correction device; On one side of the second adjusting plate 502 close to the patient's knee joint, an airbag 5041 is fixed by means of adhesion or the like. At the same time, on the side of the second adjusting plate 502 close to the first adjusting plate 501, an air storage cavity 5042 is provided. A communication is formed between the air storage cavity 5042 and the airbag 5041 through a flexible air pipe 5044. A piston plate 5043 that closely cooperates with the air storage cavity 5042 is fixed on the first adjusting plate 501. When the patient wears this orthosis and walks, taking the forward step as an example, at this time, the patient's thigh is lifted, and at the same time, an angle gradually forms between the thigh and the calf from the state of being in the same straight line. At this time, the first adjusting plate 501 and the second adjusting plate 502 rotate under the drive of the patient's whole leg, which is regarded as positive rotation. At this time, the piston plate 5043 squeezes the air storage cavity 5042 and conveys the internal gas to the airbag 5041. The airbag 5041 is made of an elastic and stable material, that is, the size when the airbag 5041 is fully inflated is fixed, and it can cooperate with the thigh fixing plate 2, the first adjusting plate 501, the second adjusting plate 502 and the calf fixing plate 3 to provide a supporting effect on the patient's knee joint from both sides to the center. When the patient's thigh is lowered, that is, when the thigh and the calf gradually return to the same straight line from the angled state, the automatic adjusting part 505 can automatically adjust the gas in the air storage cavity 5042 and the airbag 5041, so that there is always a sufficient amount of gas inside the airbag 5041, and at the same time, it can prevent over-inflation in the air storage cavity 5042 or the airbag 5041, which may affect the patient's normal walking or cause safety problems; when the patient is walking, through the cooperative action of the airbag 5041, the first adjusting plate 501 and the second adjusting plate 502, the valgus stress of the patient's calf can be increased, thereby reducing the pressure on the medial compartment of the knee joint, which is beneficial to correcting the patient's knee varus and relieving the pain on the medial side of the patient's knee joint.

[0028] Refer to Figures 9-12 , in some embodiments, the automatic adjusting part 505 includes a first air valve 5051 located on the second adjusting plate 502 and communicating with the air storage cavity 5042. The first air valve 5051 includes a main valve body structure located at the topmost end of the air inlet of the air storage cavity 5042. A sealing ball 50511 and a sealing ball return spring 50512 are arranged inside the main valve body structure. When the air storage cavity 5042 is discharging air to the airbag 5041 or to the outside, or is in a state of stable internal air pressure, the sealing ball 50511 can close the main valve body structure of the first air valve 5051 under the elastic force of the sealing ball return spring 50512, that is, it can prevent the gas in the air storage cavity 5042 from being discharged to the outside. When the patient is walking, the thigh and the calf recover from the bent state to the state of being in the same straight line, such as Figure 11The arrow in it indicates the direction. At this time, the sliding of the piston plate 5043 can form a negative pressure effect inside the air storage cavity 5042, and suck in gas from the outside into the air storage cavity 5042 through the first air valve 5051. Then, the sealing ball 50511 slides towards the direction close to the air storage cavity 5042, and compresses the sealing ball return spring 50512 to facilitate gas inhalation. When the patient walks forward again, the sealing ball 50511 resets under the action of the sealing ball return spring 50512 and air pressure, and blocks the first air valve 5051 again; that is, the first air valve 5051 can suck in gas from the outside into the air storage cavity 5042 and prevent the gas from leaking to the outside from this place; It is located on the adjusting plate 502 and on the same plane as the first air valve 5051. A second air valve 5052 communicating with the air storage cavity 5042 is also provided. Inside the main valve body structure of the second air valve 5052, there is a sealing piston 50521 and a sealing piston return spring 50522, and the setting method here is opposite to that inside the first air valve 5051. That is, the sealing piston 50521 maintains the sealed state of the air storage cavity 5042 under normal conditions or when the air storage cavity 5042 sucks in air from the outside. When the patient walks forward, at this time, the piston plate 5043 presses the air storage cavity 5042 again. When the airbag 5041 is in a full state, as Figure 12 shown by the arrow in it, at this time, the sealing piston 50521 moves away from the air storage cavity 5042 under the action of the internal air pressure in the air storage cavity 5042, that is, the second air valve 5052 opens, so that the excessive gas in the air storage cavity 5042 can be discharged to the outside to prevent the airbag 5041 from being over-inflated. When the patient's leg returns to the same straight line again, at this time, the second air valve 5052 closes under the action of the internal air pressure in the air storage cavity 5042 and the reset of the sealing piston return spring 50522, so that when the patient walks again, gas can be sucked into the air storage cavity 5042 again through the first air valve 5051, and the air in the air storage cavity 5042 can be circulated and adjusted; In addition, a third air valve 5053 is provided at the connection between the air storage cavity 5042 or the airbag 5041 and the flexible air pipe 5044. The third air valve 5053 is essentially an ordinary one-way valve product, which can prevent the gas filled in the airbag 5041 from flowing back into the air storage cavity 5042 and allow the gas in the air storage cavity 5042 to be transported to the airbag 5041, thereby maintaining the stability of the gas inside the airbag 5041. Through the combined action of each air valve structure in the automatic adjustment part 505, the airbag 5041 can always be kept in a full state, and when the airbag 5041 has a relatively small breakage, it can also provide sufficient gas input to the airbag 5041, thereby improving the overall reliability of the device.

[0029] In some embodiments, a torsion spring 506 is also sleeved at the middle rotating shaft of the first adjusting plate 501 and the second adjusting plate 502. The two ends of the torsion spring 506 are respectively fixed on the first adjusting plate 501 and the second adjusting plate 502. When the patient walks, due to the bending effect between the thigh and the calf, the torsion spring 506 can be compressed, and when the thigh and the calf return to a straight line state, a certain elastic force is provided, thereby providing a certain assisting effect for the patient's walking.

[0030] Refer to Figure 13 and Figure 14 , a power assisting mechanism 6 for assisting the patient to walk is further provided on the waist fixing belt 1. The power assisting mechanism 6 includes a housing 601 that is fixed to the waist fixing belt 1 by means of bolt connection or bonding, etc., and is located in front of the waist when the patient wears this device. The housing 601 is generally a double-layer cavity housing structure. A battery compartment for placing a battery 606 is provided at its upper part, and a driving compartment for fixing a driving motor 602 is provided at its lower part. And a switch 607 for controlling the start or stop of the driving motor 602 is provided outside the housing 601. Through holes are also opened at the bottoms on both sides of the driving compartment of the housing 601; In an embodiment of the present invention, the driving motor 602 is a bidirectional motor with power shafts provided at both ends, and can drive the swing rod 605 to rotate in cooperation with an intermittent transmission assembly. The intermittent transmission assembly includes a driving gear 603 fixed on the power shafts at both ends of the driving motor 602. At the same time, a first driven gear 604 meshing with the driving gear 603 is rotatably provided on both sides of the housing 601. Refer to Figure 15 , the first driven gear 604 can be regarded as a gear product with a two-stage structure. A complete first-stage gear is fixed in the middle of its rotating shaft, and this stage gear meshes with the driving gear 603. One end of it far from the rotating connection with the housing 601 is fixed with a second-stage gear with only partially arranged tooth structures on the circumference or an intermittent meshing tooth structure. At the same time, a second driven gear 608 that intermittently meshes with the first driven gear 604 is rotatably provided at a position near the bottom of the housing 601. The second driven gear 608 has the same structure as the second-stage gear in the first driven gear 604, both being a sector gear or an intermittent meshing gear. Then when the driving motor 602 is started, it can drive the first driven gear 604 to rotate in an asynchronous form through the driving gears 603 on both sides, and drive the second driven gear 608 to rotate periodically through the intermittent meshing characteristic; On the second driven gears 608 located on both sides, swing rods 605 are also fixed by means such as welding or bolt connection. The swing rods 605 are obliquely arranged, penetrate through the through holes on both sides of the bottom of the housing 601, and are finally rotatably connected to the leg straps 4 located at the topmost part. Then, when the patient walks while wearing this correction device, the driving motor 602 can be selected to be turned on, and the swing rods 605 are periodically driven by the second driven gears 608 to rotate upward and forward of the patient's body, thereby pulling the leg straps 4 at the topmost part of the thighs upward to assist the patient in lifting the legs. When the patient's legs are about to be lowered, at this time, the second driven gears 608 lose engagement with the first driven gears 604, enabling the patient's legs to be lowered naturally and resetting the second driven gears 608, and then re-engaging through the first driven gears 604 to assist in lifting the patient's legs next time. By adjusting the rotation speed of the driving motor 602, the working frequency of the entire assisting mechanism 6 can be adjusted according to the patient's walking frequency, enabling this device to be applicable to patients with different leg conditions and further expanding the applicable range of the device.

[0031] A method for using a non-invasive knee osteoarthrosis correction device includes the following steps: S1. When the patient wears this correction device, first adjust the relative position of the entire device and the legs so that the airbag 5041 fits against the patient's knee joint. Subsequently, use multiple leg straps 4 to fix the thigh fixing plate 2 and the calf fixing plate 3 of the device to the patient's thigh and calf respectively, and fix the assisting mechanism 6 to the patient's waist through the waist fixing strap 1 to completely fix the device. S2. According to the patient's leg shape and the recovery condition at the knee joint, rotate the adjusting bolt 503 to precisely adjust the relative angles between the thigh fixing plate 2 and the first adjusting plate 501, and between the calf fixing plate 3 and the second adjusting plate 502. Combining the supporting effect of the airbag 5041 on the patient's knee joint, correct the patient's leg shape. S3. When the patient walks while wearing this correction device, start the driving motor 602, and periodically drive the swing rods 605 on both sides through the intermittent meshing gear structure to pull the uppermost leg straps 4 forward and upward to assist the patient's legs and assist in walking forward.

[0032] Actual application cases According to the actual shape of the patient's deformed knee joint, rotate the adjusting bolt 503 to adjust the rotation angles between the thigh fixing plate 2 and the first adjusting plate 501, and between the second adjusting plate 502 and the calf fixing plate 3, so that the entire device can fit the patient's leg shape in the initial state. Wear this correction device for the patient. When wearing, ensure that the airbag 5041 can just fit against the patient's knee joint, and fix the leg straps 4 and the waist fixing strap 1 properly. Combined with the correction plan for the patient's knee joint, if the overall leg shape of the patient is O-shaped, the adjustment bolts 503 on both sides are screwed outward to a position away from the center to correct the patient with O-shaped legs. For patients with X-shaped legs, the adjustment bolts 503 can be screwed toward the center. When performing the correction, the specific correction plan should be combined, and the adjustment bolts 503 should be adjusted according to the requirements of a fixed correction period and correction angle, so that the patient's leg can adapt to the adjustment angle of the correction device, avoiding discomfort caused by overcorrection to the patient or causing secondary damage to the leg; When the patient walks wearing this correction device, the boost mechanism 6 can be selectively activated according to actual needs to boost the patient's thigh to lift, so as to reduce the pressure on the entire leg including the knee joint when the patient walks.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-invasive knee joint osteoarthrosis correction device, including a thigh fixing plate (2) and a calf fixing plate (3), and multiple leg straps (4) are provided on the thigh fixing plate (2) and the calf fixing plate (3), and it is characterized in that: An adjustment and correction mechanism (5) for non-invasively correcting the knee joint is provided between the thigh fixing plate (2) and the calf fixing plate (3).

2. The non-invasive knee joint osteoarthrosis correction device according to claim 1, wherein: The adjustment and correction mechanism (5) includes: An adjustment component, connected between the thigh fixing plate (2) and the calf fixing plate (3), for adjusting the angle between the thigh fixing plate (2) and the calf fixing plate (3); A knee joint support part (504), arranged on the adjustment component, for supporting the patient's knee joint.

3. The non-invasive knee joint osteoarthrosis correction device according to claim 2, and it is characterized in that: [[ID= ​ ​ ​ ​ 5. The non-invasive knee joint osteoarthrosis correction device according to claim 4, characterized in that: ​ 6. The non-invasive knee osteoarthrosis correction device according to claim 5, characterized in that: ​ 7. The non-invasive knee joint osteoarthrosis correction device according to claim 6, characterized in that: ​ 8. An apparatus for non-invasive correction of knee osteoarthrosis according to claim 7, characterized in that: ​ ​ ​ ​ ​ ​ 10. The non-invasive knee joint osteoarthrosis correction device according to claim 9, wherein: ​ Drive motor (602); Swing rod (605), one end of the swing rod (605) is rotatably connected to one of the multi-channel leg straps (4), and the other end is connected to the drive motor (602) through an intermittent transmission assembly.

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