Dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous acting force

Abstract

The invention relates to a dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous acting force, which is worn on the lower limb of a human body and comprises a longitudinal orthosis plate, and a thigh orthosis assembly with a thigh brace, a knee orthosis assembly with a knee brace and a shank orthosis assembly with a shank brace which are sequentially arranged from top to bottom; longitudinal orthopedic plates are longitudinally arranged on the front side and the rear side of the lower limb of the human body respectively, and a thigh orthopedic assembly, a knee orthopedic assembly and a shank orthopedic assembly are detachably arranged among the upper portions, the middle portions and the lower portions of the longitudinal orthopedic plates on the two sides respectively. The front sides and the rear sides of the thigh brace, the knee brace and the shank brace are all provided with transverse extenders, and the thigh brace, the knee brace and the shank brace are all connected with the longitudinal orthopedic plate through the transverse extenders. According to the dynamic bionic three-dimensional orthosis, based on guidance of high-efficiency biomechanics, a stiff orthosis formed through one-time manufacturing is upgraded into the dynamic bionic three-dimensional orthosis capable of accurately controlling continuous drafting force, the application range of the orthosis is widened, and the treatment effect and wearing comfort of the orthosis are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical rehabilitation equipment, and in particular to a dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous acting force. Background Art

[0002] Common "bending" of the lower limbs in children and adolescents include lower limb angulation and lower limb rotation problems. Lower limb angulation problems mainly refer to knee valgus, commonly known as "O"-shaped legs and knee valgus, commonly known as "X"-shaped legs, while lower limb rotation problems include foot internal rotation, commonly known as "inward-turned feet", and foot external rotation, commonly known as "outward-turned feet".

[0003] Most of the "O"-shaped legs and "X"-shaped legs are physiological, and will be corrected spontaneously as the child's bones develop. However, there are still a few that are pathological, such as vitamin D deficiency rickets, which is mainly caused by bone changes such as bone softening and bone deformation caused by calcium and phosphorus metabolism disorders. At this time, due to bone softening and muscle relaxation, if the child is in the stage of standing or learning to walk, especially children with fast growth, high development level, and love to jump, due to the heavy weight and the unbearable pressure on the lower limb bones, the femur, tibia and fibula will bend, forming severe genu varum or genu valgum deformity.

[0004] When the deformity reaches a certain level that exceeds the body's own self-correction ability, external force must be used to restore it to normal. The progression of lower limb curvature deformity will seriously affect their physical and mental health during their growth and development period, and will continue throughout their lives. Therefore, early detection and early treatment of these patients are of great significance for the prevention and treatment of lower limb curvature in children and adolescents. Nowadays, the application of orthotics and related technologies is an important intervention method for early detection and early treatment of these patients. It can effectively control the progression of deformity, delay the natural course of lower limb curvature progression, and reduce the degree of surgical intervention.

[0005] Currently, almost all the instruments or correction belts related to genu varum on the market simply squeeze the knee joint from the outside to the inside. The theoretical basis is to stretch the medial collateral ligament of the knee joint, or use a splint-like brace to bind the entire lower limb to try to squeeze the bones in a single plane. These instruments cannot correct the rotation and displacement of bones and joints, and are only suitable for some patients with mild deformities. Occasionally, the invented full-range corrector is reported to be non-wearable and the correction force cannot be maintained.

[0006] Most wearable orthotics are made based on the patient's lower limb curvature and are made and worn at one time. The main problems are as follows: 1. There are very few types of lower limb curvature orthotics at present, and there is no targeted biomechanical basis support; 2. There is a lack of wearable high-performance mainstream products; 3. If the curvature correction is not satisfactory and cannot be adjusted dynamically during the wearing of the orthosis, a new orthosis can only be made and worn again, resulting in poor treatment effect or failure; 4. The orthosis made at one time exerts a large force on the body, and it is easy to cause discomfort or even pain during the adaptation period. The patient cannot persist and the treatment fails; 5. It is only suitable for some mildly affected limbs. Summary of the invention

[0008] In order to solve the problem that some orthoses are made in one go and it is difficult to dynamically adjust the stretching force, resulting in unsatisfactory lower limb orthosis treatment effects, the present invention provides a dynamic bionic lower limb curvature deformity orthosis that can accurately control the continuous force. Through the three-point mechanics principle, accurately controllable slow and continuous stretching forces and torques are applied to the bones in opposite directions on the patient's limb surface, thereby changing the load on the bones during their three-dimensional growth, achieving the purpose of correcting the curvature deformity, and realizing an ideal orthotic effect.

[0009] To achieve the above object, the technical solution adopted by the present invention is: A dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force, which is worn on the lower limbs of a human body, and includes a longitudinal orthosis plate and a thigh orthosis component with a thigh brace, a knee orthosis component with a knee brace, and a calf orthosis component with a calf brace, which are arranged in sequence from top to bottom; The longitudinal orthotic plates are respectively arranged longitudinally on the front and rear sides of the lower limbs of the human body, so as to provide a basis for the correction of the lower limbs; the thigh orthotic component, the knee orthotic component and the calf orthotic component are respectively detachably arranged between the upper, middle and lower parts of the longitudinal orthotic plates on both sides; the thigh orthotic component and the calf orthotic component are arranged on one side of the left and right lower limbs of the human body, and the knee orthotic component is arranged on the other side of the left and right lower limbs of the human body; The thigh brace, knee brace and calf brace are all provided with transverse stretchers on both sides of the front and rear, and the thigh brace, knee brace and calf brace are all connected to the longitudinal orthosis plate through the transverse stretchers. The transverse stretchers facilitate the position adjustment of the brace. The transverse stretchers include a fixed plate and a movable plate that is adjustably arranged on one side of the fixed plate. A threaded rod is arranged between the fixed plate and the movable plate to adjust the spacing. Under the premise that the fixed plate does not move, the spacing between the fixed plate and the movable plate is adjustable.

[0010] Furthermore, the longitudinal orthotic plate is a thin plate with bending properties, the longitudinal orthotic plates on both sides are of equal length, arranged along the height direction of the lower limbs, and multiple rows of mounting holes are provided on the longitudinal orthotic plates. The number of mounting holes in each row is a number of holes arranged equidistantly up and down, which is convenient for adjusting the installation position of the transverse stretcher.

[0011] Furthermore, the number of the thigh orthosis component and the number of the calf orthosis component is at least one, and the number of the knee orthosis component is one.

[0012] Furthermore, the number of the thigh orthosis components and the number of the calf orthosis components are both two, so as to contact the thigh and calf as comprehensively as possible.

[0013] Furthermore, the thigh brace is a curved shell-like structure that fits the thigh part of the human body, and the thigh brace is buckled on the thigh part of the human body; the knee brace is a curved shell-like structure that fits the knee part of the human body, and the knee brace is buckled on the knee of the human body; the calf brace is a curved shell-like structure that fits the calf part of the human body, and the calf brace is buckled on the calf of the human body.

[0014] Furthermore, two transverse stretchers are arranged on the thigh brace, knee brace and calf brace. The two transverse stretchers are respectively located on the front and rear sides of the lower limbs of the human body and are detachably connected to the longitudinal orthotic plate. The transverse stretchers are connected to the mounting hole screws.

[0015] Furthermore, the fixed plate in the transverse stretcher is screw-connected to any two adjacent mounting holes in any column, which facilitates the disassembly and assembly of the fixed plate and the adjustment of the installation position. The length of the fixed plate is smaller than that of the movable plate, and the movable plate can be connected to the brace in a larger range. The movable plate is a thin plate body with bending characteristics. The movable plate and the fixed plate are located on the same plane. The transverse stretcher is respectively connected to the thigh brace, the knee brace and the calf brace through the movable plate. The movable plate is provided with multiple rows of connecting holes for inserting screws, which facilitates the screw connection between the movable plate and the brace.

[0016] Furthermore, a fixing tube is provided in the middle of the fixing plate, the threaded rod is provided on the fixing tube, a movable sleeve is provided on the movable plate, one end of the threaded rod extends into the movable sleeve, nuts are provided on the threaded rods at both ends of the movable sleeve, and the nuts at both ends cooperate to clamp the movable sleeve.

[0017] Furthermore, the longitudinal orthotic plate is a telescopic structure, which is convenient for adapting to patients with different lower limb heights.

[0018] Through the above technical solution, the beneficial effects of the present invention are: The present invention applies precise and controllable slow and continuous stretching force and torque in opposite directions on the surface of the patient's lower limbs through the three-point mechanical principle to act on the bones, changing the load of the bones in three-dimensional space growth and achieving the purpose of correcting the bending deformity. The orthosis is guided by the high-efficiency biomechanical basis, and the three-point continuous stretching force can greatly increase the therapeutic effect of the orthosis.

[0019] The precise and controllable slow and continuous stretching force of the present invention is achieved by designing and installing a precisely adjustable transverse stretcher and its connecting brace on the longitudinal orthosis plate, thus upgrading the current rigid orthosis to a precisely adjustable dynamic bionic three-dimensional orthosis. The precise and controllable slow and continuous stretching force allows the body to gradually adapt to the force, greatly increasing the comfort of orthosis treatment and improving the treatment effect. The precise and controllable slow and continuous stretching force can dynamically adjust the applied force during orthosis treatment, greatly increasing the scope of application and treatment effect of the orthosis.

[0020] In the present invention, since the bones of children and adolescents are relatively soft, their skeletons are not completely calcified and their development is still immature, their bones contain more organic matter and less inorganic matter, and they have high elasticity, high toughness and strong plasticity, and the orthosis can achieve an ideal orthopedic effect.

[0021] The brace of the present invention includes a plurality of braces that fit the corresponding parts of the human body, which can facilitate the support of the parts of the human body. The brace is installed by screws, which is convenient for the assembly of the orthosis. The horizontal stretcher provides a lateral force, and the horizontal stretcher is combined with the braces of different parts, so that a slow and continuous stretching that can be accurately adjusted can be performed, thereby correcting the lower limbs well.

[0022] The present invention realizes the adjustable installation position of the transverse stretcher under the action of the installation hole, thereby facilitating the brace to be worn at different positions of the lower limbs. The adjustment of the transverse stretcher adopts a threaded means, which is convenient, flexible and accurate to adjust the stretching correction force. The stretching force adjustment has the characteristics of precise controllability and slow and continuous stretching, so that the body gradually adapts to the force, which can avoid the discomfort and pain caused by the large correction force applied, and ensure continuous correction force, greatly increasing the comfort of orthosis treatment and improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the dynamic bionic lower limb bending deformity orthosis of the present invention which can accurately control the continuous force.

[0024] Figure 2 It is a side view of the dynamic bionic lower limb bending deformity orthosis of the present invention which can accurately control the continuous force.

[0025] Figure 3 It is a schematic diagram of the installation of the thigh orthosis component of the dynamic bionic lower limb bending deformity orthosis of the present invention which can accurately control the continuous force.

[0026] Figure 4 It is a schematic diagram of the transverse stretcher of the dynamic bionic lower limb bending deformity orthosis of the present invention which can accurately control the continuous force.

[0027] Figure 5 This is a front view of the structure of the dynamic bionic lower limb bending deformity orthosis used for correcting "O"-shaped legs of the present invention, which can accurately control the continuous force. The dotted lines in the figure represent the two lower limbs of the human body.

[0028] Figure 6 It is a front view of the longitudinal orthotic plate of the telescopic structure of the dynamic bionic lower limb bending deformity orthosis of the present invention which can accurately control the continuous force.

[0029] Figure 7 The invention is a dynamic bionic lower limb bending deformity orthosis that can accurately control the continuous force. Figure 6 A partial enlarged schematic diagram of .

[0030] Figure 8 The invention is a dynamic bionic lower limb bending deformity orthosis that can accurately control the continuous force. Figure 6 Schematic diagram of the splitting.

[0031] Fig. 9 The invention is a dynamic bionic lower limb bending deformity orthosis that can accurately control the continuous force. Figure 6 Schematic diagram of the middle screw lifting mechanism.

[0032] The numbers in the accompanying drawings are: 1 longitudinal orthotic plate, 2 thigh orthotic assembly, 201 thigh brace, 3 knee orthotic assembly, 301 knee brace, 4 calf orthotic assembly, 401 calf brace, 5 transverse stretcher, 51 fixed plate, 52 movable plate, 6 mounting hole, 7 threaded rod, 8 fixed cylinder, 9 movable sleeve, 10 nut, 11 lower plate, 12 upper plate, 13 screw lifting mechanism, 131 quadrilateral mechanism, 132 bidirectional screw, 14 guide plate, 15 movable threaded cylinder, 16 prism, 17 strip hole, 18 connecting hole. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings: like Figure 1 to Figure 9 As shown, a dynamic bionic lower limb bending deformity orthosis that can accurately control the continuous force is worn on the lower limbs of the human body to correct "O" shaped legs and "X" shaped legs. The orthosis includes a longitudinal orthosis plate 1 and a thigh orthosis component 2 with a thigh brace 201, a knee orthosis component 3 with a knee brace 301 and a calf orthosis component 4 with a calf brace 401, which are arranged in sequence from top to bottom.

[0034] The longitudinal orthotic plates 1 are arranged longitudinally on the front and back sides of the lower limbs of the human body, and the number of longitudinal orthotic plates 1 is two. The longitudinal orthotic plates 1 are thin plates with bending characteristics, which can be bent and deformed by external forces. The longitudinal orthotic plates 1 are arranged along the height direction of the lower limbs, and the longitudinal orthotic plates 1 on the front and back sides are of equal length.

[0035] The thigh orthosis component 2, the knee orthosis component 3 and the calf orthosis component 4 are detachably arranged between the upper, middle and lower parts of the longitudinal orthosis plates 1 on both sides. Figure 1 and Figure 2 As shown. That is, the thigh orthosis component 2 is connected between the upper parts of the two longitudinal orthosis plates 1, and the thigh orthosis component 2 is worn on the thigh; the knee orthosis component 3 is connected between the middle parts of the two longitudinal orthosis plates 1, and the knee orthosis component 3 is worn on the knee of the lower limb; the calf orthosis component 4 is connected between the lower parts of the two longitudinal orthosis plates 1, and the calf orthosis component 4 is worn on the calf. This also means that the height of the longitudinal orthosis plate 1 extends downward from the thigh of the lower limb to the calf.

[0036] After wearing, the thigh orthotic component 2 and the calf orthotic component 4 are arranged on one side of the left or right lower limb of the human body, and thus the thigh orthotic component 2 and the calf orthotic component 4 are located on the same side; the knee orthotic component 3 is arranged on the other side of the left or right lower limb of the human body, and thus the thigh orthotic component 2 and the knee orthotic component 3 are located on different sides.

[0037] It should be noted that: the number of the thigh orthosis component 2 and the number of the calf orthosis component 4 is at least one, preferably, the number of the thigh orthosis component 2 and the number of the calf orthosis component 4 are both two. The two thigh orthosis components 2 are arranged at the proximal and distal ends of the thigh, and the two calf orthosis components 4 are arranged at the proximal and distal ends of the calf, and the proximal and distal ends are determined based on the distance from the knee. The number of the knee orthosis component 3 is one, and the wearing position of the knee orthosis component 3 is at the apex of the knee deformity.

[0038] The thigh orthosis component 2, the knee orthosis component 3 and the calf orthosis component 4 are worn on the lower limbs of the human body through the respective thigh braces 201, knee braces 301 and calf braces 401. The thigh brace 201 is a curved shell-like structure that fits the thigh part of the human body, and the thigh brace 201 is buckled on the thigh part of the human body; the knee brace 301 is a curved shell-like structure that fits the knee part of the human body, and the knee brace 301 is buckled on the knee part of the human body; the calf brace 401 is a curved shell-like structure that fits the calf part of the human body, and the calf brace 401 is buckled on the calf part of the human body.

[0039] The front and rear sides of the thigh brace 201, the knee brace 301 and the calf brace 401 are all provided with transverse stretchers 5, that is, two transverse stretchers 5 are arranged on the thigh brace 201, the knee brace 301 and the calf brace 401. The thigh brace 201, the knee brace 301 and the calf brace 401 are all connected to the longitudinal orthosis board 1 through the transverse stretchers 5. Specifically, each brace is detachably connected to the longitudinal orthosis board 1 through two transverse stretchers 5, and the two transverse stretchers 5 are respectively located on the front and rear sides of the lower limbs of the human body.

[0040] In order to realize flexible installation of the orthopedic component on the longitudinal orthopedic plate 1, three rows of mounting holes 6 are provided on the longitudinal orthopedic plate 1, each row of mounting holes 6 has a number of mounting holes 6 arranged equidistantly up and down, and the transverse stretcher 5 is screwed to the mounting holes 6. The transverse stretcher 5 can provide a precise and controllable slow and continuous force.

[0041] In this embodiment, the transverse drafter 5 includes a fixed plate 51 and a movable plate 52 which is adjustably arranged on one side of the fixed plate 51. Figure 3 and Figure 4 The two sides of the fixing plate 51 in the transverse stretcher 5 are screw-connected to any two adjacent mounting holes 6 in any row, and the mounting position of the fixing plate 51 is flexible and adjustable, and the fixing plate 51 realizes the connection between the transverse stretcher 5 and the longitudinal orthopedic plate 1 .

[0042] The length of the fixed plate 51 is shorter than that of the movable plate 52. The movable plate 52 and the fixed plate 51 are located on the same plane. The movable plate 52 is a thin plate with bending characteristics. The longitudinal orthopedic plate 1 and the movable plate 52 are both made of thin steel sheets. The movable plate 52 is used to connect the brace, that is, the transverse stretcher 5 is connected to the thigh brace 201, the knee brace 301 and the calf brace 401 respectively through the movable plate 52. The movable plate 52 is connected to the brace screws, that is, two rows of connection holes 18 for inserting screws are opened on the movable plate 52. The number of connection holes 18 in each row is multiple, and at least two connection holes 18 are selected to insert screws to connect the brace.

[0043] A threaded rod 7 is provided between the fixed plate 51 and the movable plate 52, and the spacing adjustment is achieved through the threaded rod 7. That is, on the basis of the fixed position of the fixed plate 51, the movable plate 52 can be close to or away from the fixed plate 51 to adjust the position of the movable plate 52. Specifically, a fixed cylinder 8 is provided in the middle of the fixed plate 51, and the fixed cylinder 8 is provided with a threaded rod 7, so that the position of the threaded rod 7 is fixed; a movable sleeve 9 is provided on the movable plate 52, and one end of the threaded rod 7 extends into the movable sleeve 9, and there is no threaded connection between the threaded rod 7 and the movable sleeve 9. Nuts 10 are provided on the threaded rod 7 at both ends of the movable sleeve 9, and the nuts 10 at both ends cooperate to clamp the movable sleeve 9. By screwing the nut 10, the movable sleeve 9 can be driven to move on the threaded rod 7, and then the movable plate 52 moves axially along the threaded rod 7.

[0044] The principle of the present invention is as follows: on the basis that the number of the thigh orthosis component 2 and the number of the calf orthosis component 4 are both two, the length of the longitudinal orthosis plate 1 can be appropriately increased. Select two longitudinal orthosis plates 1 of corresponding lengths and arrange them on the front and back sides of the lower limbs respectively; make two thigh orthosis components 2 and calf orthosis components 4 and a knee orthosis component 3. First, install the knee orthosis component 3 between the middle parts of the two longitudinal orthosis components 1 through the transverse stretcher 5 to ensure that the knee brace 301 corresponds to the knee of the lower limb; then install the thigh orthosis component 2 and the calf orthosis component 4 between the upper and lower parts of the two longitudinal orthosis components 1 through the transverse stretcher 5 in turn to ensure that the thigh brace 201 and the calf brace 401 correspond to the thigh position and the calf position respectively, so that the orthosis can be worn on the lower limb, such as Figure 5 shown.

[0045] Figure 5 The orthosis shown forms a relative "three-point" correction force through braces at different positions, so as to correct the "O"-shaped legs of the lower limbs in a targeted manner. The horizontal arrow indicates the direction of the lateral force, and the horizontal arrow in the middle points to the apex of the lower limb arch deformity. That is, an inward stretching force is applied at the apex of the deformity, and an outward stretching force is applied at the proximal and distal ends of the thigh and the proximal and distal ends of the calf, thereby correcting the knee varus affected limb.

[0046] After wearing, the two longitudinal orthotic plates 1 cooperate with each other to provide a basis for the orthosis of the lower limbs. After wearing for a certain period of time, the left and right positions of the knee brace 301 are adjusted by the transverse stretcher 5, and the deformation of the lower limbs is gradually and accurately corrected, so that the lower limbs gradually adapt to the force, which greatly increases the comfort of orthotic treatment and improves the treatment effect.

[0047] The invention can stretch a certain distance regularly during correction treatment, and the distance is suitable for the patient's tolerance to avoid discomfort and pain caused by excessive force. The horizontal stretching can achieve the effect of precise control of the force, and can also stretch slowly and continuously, which is completely different from the conventional one-time rigid orthosis.

[0048] The knee orthosis component 3 of the present invention corresponds to the vertex of the bow-shaped deformity, and an inward force is applied to the vertex of the bow-shaped deformity through the transverse stretcher 5. At the same time, the thigh orthosis component 2 and the calf orthosis component 4 are arranged at the thigh and calf, and an outward force is applied to the thigh and calf through the transverse stretcher 5, thereby forming two opposing forces relative to the vertex of the bow-shaped deformity, thereby playing a corrective role. It should be noted that the longitudinal orthosis plate 1 can not only be arranged on the front and back sides of the lower limb, but also can be arranged according to the specific vertex of the lower limb deformity. For example, for the lower limb with anterior bow deformity, its knee bulges forward. At this time, the longitudinal orthosis plate 1 is arranged on the left and right sides of the lower limb, the knee brace 301 is arranged in front of the knee and applies force backward, the thigh brace 201 is arranged behind the thigh, and the calf brace 401 is arranged behind the calf, both of which apply an opposing force forward. Figure 5 Two lower limbs are shown, and by looking at any one of the lower limbs from the perspective of a side view of the human body, it can be understood that the longitudinal orthotic plate 1 is arranged on the left and right sides of the lower limb.

[0049] In order to optimize the product structure, the longitudinal orthotic plate 1 can be a telescopic structure on the basis of a fixed structure, so that the length of the longitudinal orthotic plate 1 can be adjusted to adapt to patients with different lower limb heights, thereby increasing the application range of the orthosis. Figure 6 and Figure 7 As shown, the longitudinal orthopedic plate 1 comprises a lower plate 11, an upper plate 12 and a screw lifting mechanism 13. The upper plate 12 and the lower plate 11 are both independent thin plates. The arrangement direction of the upper plate 12 is consistent with that of the lower plate 11, that is, the upper plate 12 and the lower plate 11 are arranged vertically in a straight line, and there is an overlap between the lower plate 11 and the upper plate 12. The upper plate 12 is slidably arranged above the lower plate 11, which changes the distance between the upper plate 12 and the lower plate 11.

[0050] In order to guide the sliding of the upper plate 12, guide pieces 14 are symmetrically arranged on both sides of the upper part of the lower plate 11. The guide pieces 14 are bent into a "﹁" shape. After the guide pieces 14 on both sides are connected and combined with the lower plate 11, the cross-section is an open rectangular flat tube shape, that is, one side wall of the rectangular flat tube is disconnected in the middle and is not closed. There is a gap between the guide piece 14 and the lower plate 11, the purpose is to facilitate the insertion of the upper plate 12. One end of the guide piece 14 is bent and connected to the lower plate 11, and then the upper plate 12 is arranged between the guide pieces 14 on both sides. The upper end of the upper plate 12 extends upward from the lower plate 11. The guide piece 14 can prevent the upper plate 12 from deflecting when moving.

[0051] In order to adjust the position of the upper plate 12, a screw lifting mechanism 13 is used here, that is, a screw lifting mechanism 13 is arranged between the lower plate 11 and the upper plate 12, and the screw lifting mechanism 13 can adjust the relative distance between the lower plate 11 and the upper plate 12, such as Figure 8 and Fig. 9The screw lifting mechanism 13 includes a quadrilateral mechanism 131 arranged in a diamond shape and a bidirectional screw 132 for driving the quadrilateral mechanism 131 to move. The quadrilateral mechanism 131 includes four connecting rods arranged in a diamond shape, and two adjacent connecting rods are hinged by bolts, so that the left and right spacing of the quadrilateral mechanism 131 can be adjusted, and its height changes while the left and right spacing is adjusted.

[0052] The left and right hinge points of the quadrilateral mechanism 131 are suspended and not connected to the upper plate 12 and the lower plate 11. The upper and lower hinge points of the quadrilateral mechanism 131 are connected to the lower end of the upper plate 12 and the lower plate 11 respectively. The hinge point position at the bottom of the quadrilateral mechanism 131 is fixed, and the hinge point position at the top will change up and down, which means that the upper plate 12 is moving. When the quadrilateral mechanism 131 is adjusted, it drives the upper plate 12 and the lower plate 11 to move relative to each other.

[0053] The arrangement direction of the bidirectional screw 132 is perpendicular to the arrangement direction of the upper plate 12. When the bidirectional screw 132 is installed, a movable threaded barrel 15 is arranged at the hinge points on the left and right sides of the quadrilateral mechanism 131, and the movable threaded barrels 15 on both sides are located on the same horizontal line. The thread rotation directions on both sides of the bidirectional screw 132 are different, and both sides of the bidirectional screw 132 are threadedly connected to the movable threaded barrel 15 respectively.

[0054] The adjustment principle of the telescopic structure of the longitudinal orthopedic plate 1 is as follows: after the bidirectional screw 132 is turned, the movable threaded cylinders 15 on both sides can move closer or farther away from each other, and then the height of the quadrilateral mechanism 131 can be extended or shortened. The relative spacing between the upper plate 12 and the lower plate 11 can be changed by the quadrilateral mechanism 131, so as to achieve the purpose of telescopic adjustment of the length of the longitudinal orthopedic plate 1. In order to facilitate the operation of the bidirectional screw 132, a prism 16 is provided in the middle of the bidirectional screw 132. The axis of the prism 16 and the bidirectional screw 132 are consistent. By operating the prism 16 with a tool, it is convenient to drive the bidirectional screw 132 to operate, thereby achieving the function of facilitating the adjustment of the length of the longitudinal orthopedic plate 1.

[0055] On the basis that the length of the longitudinal orthotic plate 1 can be adjusted, the thigh orthotic component 2 is mounted on the upper plate 12, and the knee orthotic component 3 and the calf orthotic component 4 are both mounted on the lower plate 11. Since the upper plate 12 and the lower plate 11 overlap, a strip hole 17 is opened at the lower part of the upper plate 12, and the fixing plate 51 on the knee orthotic component 3 located in the middle is placed in the strip hole 17 and connected to the lower plate 11 with screws.

[0056] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structures, features and principles described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A dynamic bionic lower limb bending deformity orthosis that can accurately control the continuous force, worn on the lower limbs of the human body, characterized in that: It comprises a longitudinal orthotic plate (1) and a thigh orthotic component (2) with a thigh brace (201), a knee orthotic component (3) with a knee brace (301) and a calf orthotic component (4) with a calf brace (401) which are arranged in sequence from top to bottom. The longitudinal orthotic plates (1) are respectively arranged longitudinally on the front and rear sides of the lower limbs of the human body; the thigh orthotic component (2), the knee orthotic component (3) and the calf orthotic component (4) are respectively detachably arranged between the upper, middle and lower parts of the longitudinal orthotic plates (1) on both sides; the thigh orthotic component (2) and the calf orthotic component (4) are arranged on one side of the left or right lower limb of the human body, and the knee orthotic component (3) is arranged on the other side of the left or right lower limb of the human body; The thigh brace (201), the knee brace (301) and the calf brace (401) are each provided with a transverse stretcher (5) on both the front and rear sides. The thigh brace (201), the knee brace (301) and the calf brace (401) are each connected to the longitudinal orthotic plate (1) via the transverse stretcher (5). The transverse stretcher (5) comprises a fixed plate (51) and a movable plate (52) adjustably arranged on one side of the fixed plate (51). A threaded rod (7) is arranged between the fixed plate (51) and the movable plate (52) to achieve spacing adjustment.

2. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 1, characterized in that: The longitudinal orthotic plate (1) is a thin plate with bending properties. The longitudinal orthotic plates (1) on both sides are of equal length. The longitudinal orthotic plates (1) are arranged along the height direction of the lower limbs. The longitudinal orthotic plates (1) are provided with a plurality of rows of mounting holes (6). The number of mounting holes (6) in each row is a plurality of holes that are equidistantly arranged vertically.

3. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 2, characterized in that: The number of the thigh orthosis component (2) and the number of the calf orthosis component (4) are at least one, and the number of the knee orthosis component (3) is one.

4. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 3, characterized in that: The number of the thigh orthosis components (2) and the number of the calf orthosis components (4) are both two.

5. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 2, characterized in that: The thigh brace (201) is a curved shell-like structure that fits the thigh of a human body, and the thigh brace (201) is buckled on the thigh of a human body; the knee brace (301) is a curved shell-like structure that fits the knee of a human body, and the knee brace (301) is buckled on the knee of a human body; the calf brace (401) is a curved shell-like structure that fits the calf of a human body, and the calf brace (401) is buckled on the calf of a human body.

6. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 2, characterized in that: The thigh brace (201), the knee brace (301) and the calf brace (401) are each provided with two transverse stretchers (5), the two transverse stretchers (5) being located at the front and rear sides of the lower limbs of the human body, respectively, and being detachably connected to the longitudinal orthotic plate (1), and the transverse stretchers (5) being screw-connected to the mounting holes (6).

7. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 2, characterized in that: The fixed plate (51) in the transverse drafter (5) is screw-connected to any two adjacent mounting holes (6) in any row; the fixed plate (51) is shorter than the movable plate (52); the movable plate (52) is a thin plate with bending properties; the movable plate (52) and the fixed plate (51) are located on the same plane; the transverse drafter (5) is respectively connected to the thigh brace (201), the knee brace (301) and the calf brace (401) via the movable plate (52); and the movable plate (52) is provided with a plurality of rows of connection holes (18) for inserting screws.

8. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 7, characterized in that: A fixing cylinder (8) is arranged in the middle of the fixing plate (51), the threaded rod (7) is arranged on the fixing cylinder (8), a movable sleeve (9) is arranged on the movable plate (52), one end of the threaded rod (7) extends into the movable sleeve (9), nuts (10) are arranged on the threaded rod (7) at both ends of the movable sleeve (9), and the nuts (10) at both ends cooperate to clamp the movable sleeve (9).

9. The dynamic bionic lower limb bending deformity orthosis capable of accurately controlling continuous force according to claim 2, characterized in that: The longitudinal orthopedic plate (1) is a telescopic structure.

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