Knee joint orthosis convenient to adjust

Abstract

The utility model belongs to the technical field of medical rehabilitation instruments, and particularly relates to a knee joint orthosis convenient to adjust, which comprises a knee joint orthosis body, and the knee joint orthosis body is composed of a thigh fixing plate, a shank fixing plate, a first fixing seat, a second fixing seat, a first connecting rod, a second connecting rod, a fixing disc and a rotating disc. The thigh fixing plate and the shank fixing plate are each provided with an air tap, an air bag and a fixing belt, the fixing disc is rotationally connected with the rotating disc, a limiting rod is further rotationally arranged on the fixing disc, a check block is arranged on the rotating disc, a screw hole is formed in the fixing disc, and scale marks are arranged on the fixing disc. By means of the knee joint rehabilitation training device, the knee joint movement of a patient can be limited in the early stage of rehabilitation, meanwhile, the buckling angle of the knee joint can be limited according to the rehabilitation progress, and the rehabilitation training requirement for proper buckling movement of the knee joint of the patient is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical rehabilitation equipment, and in particular relates to a knee joint orthosis which is easy to adjust. Background Art

[0002] The knee joint is the largest and most complex joint in the human body. It bears a lot of weight and has a large amount of movement. It is the hub of lower limb movement. Therefore, its injury rate ranks first among all joints. Among them, one of the most common diseases is osteoarthritis, which is a chronic joint disease characterized by degeneration, wear and tear of articular cartilage and bone hyperplasia. Long-term and increased joint load is the main external cause of its disease. At the same time, knee cartilage wear, meniscus injury, tibial plateau fracture and tibial node avascular necrosis are also common diseases of the knee joint. After knee ligament injury, meniscus repair and knee replacement surgery, if the affected area cannot be effectively fixed, secondary injury or dislocation may occur. At present, plaster is mostly used for fixation during knee joint rehabilitation. However, plaster fixation not only has the disadvantages of being dull and bulky, but also, because plaster fixation cannot be active, it cannot meet the patient's needs for appropriate knee flexion activities for rehabilitation training according to the progress of rehabilitation. Utility Model Content

[0003] In view of the above problems, the purpose of the present invention is to provide a knee joint orthosis that is easy to adjust and solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a knee orthosis that is easy to adjust, including a knee orthosis body, and the knee orthosis body is composed of a thigh fixing plate, a calf fixing plate, a first fixing seat, a second fixing seat, a first connecting rod, a second connecting rod, a fixing plate and a rotating plate. The number of the thigh fixing plate, the calf fixing plate, the first fixing seat, the second fixing seat, the first connecting rod, the second connecting rod, the fixing plate and the rotating plate are all two and are arranged opposite to each other. The thigh fixing plate and the calf fixing plate are both provided with air nozzles, The airbag and the fixing belt, the first fixing seat is arranged on the thigh fixing seat, and a first connecting rod is inserted therein, and the outer end of the first connecting rod is connected to the fixing plate, the second fixing seat is arranged on the calf fixing plate, and a second connecting rod is inserted therein, and the outer end of the second connecting rod is connected to the rotating plate, the fixing plate and the rotating plate are rotatably connected, and a limiting rod is also rotatably provided on the fixing plate, a block is provided on the rotating plate, a screw hole and a scale line are provided on the fixing plate, and the fastening bolt passes through the limiting rod and is screwed together with the screw hole on the fixing plate.

[0005] The beneficial effects of the present invention are as follows: the present invention can not only limit the patient's knee joint activity in the early stage of rehabilitation, but also limit the knee joint flexion angle according to the progress of rehabilitation, thereby meeting the patient's rehabilitation training needs for appropriate knee flexion activity.

[0006] To increase the fit and comfort of the knee orthosis during installation:

[0007] As a further improvement of the above technical solution: the airbag is arranged on the inner side of the thigh fixing plate and the calf fixing plate, and is connected to the air nozzle arranged on the outer side of the thigh fixing plate and the calf fixing plate.

[0008] The beneficial effect of this improvement is that by connecting an external inflation device to the air nozzle to fill and release gas in the airbag, it can adapt to the curvature of the lower limbs of different patients and increase the fit and comfort of the knee joint orthosis body during installation and use.

[0009] In order to further increase the skin-friendliness and comfort of the orthosis during installation and use:

[0010] As a further improvement of the above technical solution: a skin-friendly pad is provided at the other end of the airbag away from the thigh fixing plate and the calf fixing plate, and the skin-friendly pad is a moisture-absorbing and breathable cotton pad.

[0011] The beneficial effect of this improvement is that through the establishment of the skin-friendly pad, after the knee joint orthosis body is installed on the patient's lower limb, it fits with the patient's skin, which can further increase the skin-friendliness and comfort of the orthosis body during installation and use.

[0012] In order to facilitate the adjustment and fixation of the length of the knee orthosis body:

[0013] As a further improvement of the above technical solution: the first fixing seat is vertically arranged at the middle position of the outer side of the thigh fixing plate, and the second fixing seat is vertically arranged at the middle position of the outer side of the calf fixing plate, and spring blocks are arranged on both sides of the upper end of the first connecting rod and both sides of the lower end of the second connecting rod. The spring blocks arranged on the first connecting rod are engaged with several engaging holes vertically equidistantly opened on both sides of the first fixing seat, and the spring blocks arranged on the second connecting rod are engaged with several engaging holes vertically equidistantly opened on both sides of the second fixing seat.

[0014] The beneficial effect of this improvement is that by pressing the spring block inward and separating it from the hole, the first connecting rod or the second connecting rod can be moved inward or outward, and the length of the knee orthosis body can be adjusted according to actual conditions. When the adjustment is completed, the spring block is stuck in the hole at the current position, and the current length of the knee orthosis body can be fixed.

[0015] To facilitate the position fixation of the knee orthosis body:

[0016] As a further improvement of the above technical solution: the number of the fixing straps is two, one end of the two fixing straps is horizontally arranged on the thigh fixing plate and the calf fixing plate on one side of the knee joint orthosis body, and the other ends of the two fixing straps are respectively passed through the hollow parts of the first fixing seat and the second fixing seat on the other side of the knee joint orthosis body, and Velcro is provided on the movable ends of the two fixing straps, and the Velcro is bonded to the adhesive layer on the outer wall of the fixing strap.

[0017] The beneficial effect of this improvement is that after the knee joint orthosis is installed at the designated position of the patient's lower limb, it is only necessary to use a fixing belt to surround the thigh and calf parts of the patient's lower limb, and then adhere the Velcro to the adhesive layer of the outer wall of the fixing belt at an appropriate distance to complete the position fixing operation of the knee joint orthosis body.

[0018] To facilitate limiting the patient's knee flexion angle:

[0019] As a further improvement of the above technical solution: the shape of the limit rod is L-shaped, one end of the limit rod is rotatably connected to the middle part of the outer side of the fixed disk, and the other end is located on the outer wall at the edge of the fixed disk and the rotating disk, and is movably connected to them, and the stop block is arranged on the outer wall at the edge of the rotating disk.

[0020] The beneficial effect of this improvement is that through the establishment of the stopper and the limit rod, when the patient's calf movement drives the knee joint to flex for rehabilitation training, the rotating disk drives the stopper to move while rotating, and when the stopper contacts the limit rod, the rotating disk is limited to continue to rotate, thereby limiting the flexion angle of the patient's knee joint.

[0021] In order to facilitate the rotation adjustment and fixation of the limit rod:

[0022] As a further improvement of the above technical solution: there are several screw holes, which are arranged in an equidistant fan shape at one end of the outer side of the fixed disk, and the scale lines are located near the edge of the outer side of the fixed disk, and each scale value of the scale lines points to each screw hole.

[0023] The beneficial effect of this improvement is: by externally tightening the bolt to release the fixed state of the limit rod, the scale value can be read according to the patient's current recovery progress, and after rotating the limit rod to the specified screw hole, the tightening bolt is internally tightened to the current screw hole, so that the position of the limit rod can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the main view of the utility model;

[0025] Figure 2 This is a schematic diagram of the length adjustment structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the side end of the utility model;

[0027] Figure 4 This is a schematic diagram of the limit rod rotation adjustment structure of the utility model;

[0028] Figure 5 This is a schematic diagram of the angle adjustment structure of the utility model;

[0029] In the figure: 1. Thigh fixing plate; 2. Calf fixing plate; 3. First fixing seat; 4. Second fixing seat; 5. First connecting rod; 6. Second connecting rod; 7. Fixing plate; 8. Rotating plate; 9. Air nozzle; 10. Airbag; 11. Fixing belt; 12. Skin-friendly pad; 13. Velcro; 14. Spring block; 15. Clamping hole; 16. Limit rod; 17. Stop block; 18. Screw hole; 19. Scale line; 20. Fastening bolt. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0031] like Figure 1-5As shown, a knee joint orthosis that is easy to adjust includes a knee joint orthosis body, and the knee joint orthosis body is composed of a thigh fixing plate 1, a calf fixing plate 2, a first fixing seat 3, a second fixing seat 4, a first connecting rod 5, a second connecting rod 6, a fixing plate 7 and a rotating plate 8. The number of the thigh fixing plate 1, the calf fixing plate 2, the first fixing seat 3, the second fixing seat 4, the first connecting rod 5, the second connecting rod 6, the fixing plate 7 and the rotating plate 8 are all two, and are arranged opposite to each other. The thigh fixing plate 1 and the calf fixing plate 2 are both provided with an air nozzle 9, an air bag 10 and a fixing belt 11. The first fixing seat 3 is arranged on the thigh fixing seat, and the first connecting rod 5 is inserted into the interior thereof, and the outer end of the first connecting rod 5 is connected to the fixing plate 7. The second fixing seat 4 is arranged on the calf fixing plate 2, and a second connecting rod 6 is inserted therein, and the outer end of the second connecting rod 6 is connected to the rotating disk 8. The fixing plate 7 and the rotating disk 8 are rotatably connected, and a limiting rod 16 is also rotatably provided on the fixing plate 7, and a stopper 17 is provided on the rotating disk 8. A screw hole 18 and a scale line 19 are provided on the fixing plate 7, and a fastening bolt 20 passes through the limiting rod 16 and is screwed together with the screw hole 18 provided on the fixing plate 7. The utility model can not only limit the patient's knee joint activity in the early stage of rehabilitation, but also limit the knee joint flexion angle according to the progress of rehabilitation, so as to meet the patient's rehabilitation training needs for appropriate flexion activity of the knee joint. The airbag 10 is arranged between the thigh fixing plate 1 and The inner side of the calf fixing plate 2 is connected to the air nozzle 9 provided on the outer side of the thigh fixing plate 1 and the calf fixing plate 2. By connecting the external inflation device to the air nozzle 9 to fill and discharge gas into the air bag 10, it can adapt to the curvature of the lower limbs of different patients and increase the fit and comfort of the knee joint orthosis body during installation and use. The other end of the air bag 10 away from the thigh fixing plate 1 and the calf fixing plate 2 is provided with a skin-friendly pad 12, and the skin-friendly pad 12 is a moisture-absorbing and breathable cotton pad. Through the establishment of the skin-friendly pad 12, after the installation operation of the knee joint orthosis body on the patient's lower limb is completed, it fits the patient's skin, which can further increase the skin-friendliness and comfort of the orthosis body during installation and use. The first fixing seat 3 is vertically arranged in the middle position of the outer side of the thigh fixing plate 1. The second fixing seat 4 is vertically arranged at the middle position of the outer side of the calf fixing plate 2, and spring blocks 14 are provided on both sides of the upper end of the first connecting rod 5 and the lower end of the second connecting rod 6. The spring blocks 14 provided on the first connecting rod 5 are engaged with a plurality of holes 15 vertically equidistantly opened on both sides of the first fixing seat 3, and the spring blocks 14 provided on the second connecting rod 6 are engaged with a plurality of holes 15 vertically equidistantly opened on both sides of the second fixing seat 4. By pressing the spring blocks 14 inwardly and separating them from the holes 15, the first connecting rod 5 or the second connecting rod 6 can be moved inward and outward, and the length of the knee joint orthosis body can be adjusted according to actual conditions. When the adjustment is completed, the spring blocks 14 are engaged in the holes 15 at the current position.The two fixing straps 11 are respectively arranged horizontally on the thigh fixing plate 1 and the calf fixing plate 2 on one side of the knee joint orthosis body, and the other ends of the two fixing straps 11 are respectively passed through the hollow places of the first fixing seat 3 and the second fixing seat 4 on the other side of the knee joint orthosis body, and Velcro 13 is provided on the movable ends of the two fixing straps 11, and the Velcro 13 is bonded to the adhesive layer of the outer wall of the fixing strap 11. After the knee joint orthosis is installed at the specified position of the patient's lower limb, it is only necessary to use the fixing strap 11 to wrap around the thigh and calf parts of the patient's lower limb, and then bond the Velcro 13 to the adhesive layer of the outer wall of the fixing strap 11 at an appropriate distance, so that the position fixing operation of the knee joint orthosis body can be completed. The shape of the limiting rod 16 is L-shaped, and one end of the limiting rod 16 is rotatably connected to the middle of the outer side of the fixing plate 7, and the other end is located on the fixing plate 7. The outer wall of the rotating disk 8 is movably connected to the outer wall of the rotating disk 8. The stopper 17 is set on the outer wall of the rotating disk 8. Through the establishment of the stopper 17 and the limit rod 16, when the patient's calf movement drives the knee joint to flex for rehabilitation training, the rotating disk 8 drives the stopper 17 to move under the rotation. When the stopper 17 contacts the limit rod 16, the rotating disk 8 is limited to continue to rotate, thereby limiting the flexion angle of the patient's knee joint. The number of the screw holes 18 is several, and several screw holes 1 8 are arranged in an equidistant fan shape at one end of the outer side of the fixing plate 7, and the scale lines 19 are located near the outer edge of the fixing plate 7. The scale values of the scale lines 19 point to the screw holes 18. After the fixing state of the limit rod 16 is released by tightening the bolts 20 outward, the scale value can be read according to the patient's current recovery progress. After rotating the limit rod 16 to the specified screw hole 18, the bolts 20 are tightened inward to the current screw hole 18 to fix the position of the limit rod 16.

[0032] The working principle of the present invention is as follows: after the external inflation device is connected to the air nozzle 9 to charge and discharge gas into the airbag 10, it can adapt to the curvature of the lower limbs of different patients, and increase the fit and comfort of the knee orthosis body during installation and use. Through the establishment of the skin-friendly pad 12, after completing the installation operation of the knee orthosis body on the patient's lower limb, it fits with the patient's skin, which can further increase the skin-friendliness and comfort of the orthosis body during installation and use. By pressing the spring block 14 to move inward and separate from the card hole 15, the first connecting rod 5 or the second connecting rod 6 can be moved inward and outward, and the length of the use of the knee orthosis body can be adjusted according to actual conditions. When the adjustment is completed, the spring block 14 is stuck in the card hole 15 at the current position, which can fix the current length of the knee orthosis body. By installing the knee orthosis at the specified position of the patient's lower limb After the knee joint is in position, it is only necessary to use the fixing belt 11 to wrap around the thigh and calf of the patient's lower limbs, and then adhere the Velcro 13 to the adhesive layer of the outer wall of the fixing belt 11 at an appropriate distance, so that the position fixing operation of the knee joint orthosis body can be completed. Through the establishment of the stopper 17 and the limit rod 16, when the patient's calf movement drives the knee joint to flex for rehabilitation training, the rotating disk 8 drives the stopper 17 to move under rotation, and can limit the continuous rotation of the rotating disk 8 when the stopper 17 contacts the limit rod 16, thereby limiting the flexion angle of the patient's knee joint. After releasing the fixed state of the limit rod 16 by externally screwing the fastening bolt 20, the scale value can be read according to the patient's current rehabilitation progress. After rotating and adjusting the limit rod 16 to the specified screw hole 18, the fastening bolt 20 is internally screwed to the current screw hole 18, and the position of the limit rod 16 can be fixed.

[0033] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0034] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the present invention to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A knee joint orthosis that is easy to adjust, comprising a knee joint orthosis body, wherein the knee joint orthosis body is composed of a thigh fixing plate (1), a calf fixing plate (2), a first fixing seat (3), a second fixing seat (4), a first connecting rod (5), a second connecting rod (6), a fixing plate (7) and a rotating plate (8), wherein the thigh fixing plate (1), the calf fixing plate (2), the first fixing seat (3), the second fixing seat (4), the first connecting rod (5), the second connecting rod (6), the fixing plate (7) and the rotating plate (8) are all two in number and are arranged opposite to each other, and wherein the knee joint orthosis body is characterized in that: The thigh fixing plate (1) and the calf fixing plate (2) are both provided with an air nozzle (9), an air bag (10) and a fixing belt (11); the first fixing seat (3) is provided on the thigh fixing seat, and a first connecting rod (5) is inserted therein, and the outer end of the first connecting rod (5) is connected to the fixing plate (7); the second fixing seat (4) is provided on the calf fixing plate (2), and a second connecting rod (6) is inserted therein, and the outer end of the second connecting rod (6) is connected to the rotating plate (8); the fixing plate (7) and the rotating plate (8) are rotatably connected, and a limiting rod (16) is rotatably provided on the fixing plate (7); a stopper (17) is provided on the rotating plate (8); a screw hole (18) and a scale line (19) are provided on the fixing plate (7), and a fastening bolt (20) passes through the limiting rod (16) and is screwed to the screw hole (18) provided on the fixing plate (7).

2. The easily adjustable knee joint orthosis according to claim 1, characterized in that: The airbag (10) is arranged on the inner side of the thigh fixing plate (1) and the calf fixing plate (2), and is connected to the air nozzle (9) arranged on the outer side of the thigh fixing plate (1) and the calf fixing plate (2).

3. The easily adjustable knee orthosis according to claim 1, characterized in that: The other end of the airbag (10) away from the thigh fixing plate (1) and the calf fixing plate (2) is provided with a skin-friendly pad (12), and the skin-friendly pad (12) is a moisture-absorbing and breathable cotton pad.

4. The easily adjustable knee joint orthosis according to claim 1, characterized in that: The first fixing seat (3) is vertically arranged at the middle position of the outer side of the thigh fixing plate (1), and the second fixing seat (4) is vertically arranged at the middle position of the outer side of the calf fixing plate (2), and spring blocks (14) are arranged on both sides of the upper end of the first connecting rod (5) and both sides of the lower end of the second connecting rod (6). The spring blocks (14) arranged on the first connecting rod (5) are engaged with a plurality of holes (15) vertically equidistantly opened on both sides of the first fixing seat (3), and the spring blocks (14) arranged on the second connecting rod (6) are engaged with a plurality of holes (15) vertically equidistantly opened on both sides of the second fixing seat (4).

5. The easily adjustable knee joint orthosis according to claim 1, characterized in that: There are two fixing straps (11), one end of each fixing strap (11) is horizontally arranged on the thigh fixing plate (1) and the calf fixing plate (2) on one side of the knee joint orthosis body, and the other end of each fixing strap (11) is passed through the hollowed-out portions of the first fixing seat (3) and the second fixing seat (4) on the other side of the knee joint orthosis body, and a Velcro (13) is provided on the movable ends of each fixing strap (11), and the Velcro (13) is bonded to the adhesive layer of the outer wall of the fixing strap (11).

6. The easily adjustable knee joint orthosis according to claim 1, characterized in that: The limiting rod (16) is L-shaped, one end of the limiting rod (16) is rotatably connected to the middle portion of the outer side of the fixed disk (7), and the other end is located on the outer wall at the edge of the fixed disk (7) and the rotating disk (8) and is movably connected thereto, and the stopper (17) is arranged on the outer wall at the edge of the rotating disk (8).

7. The easily adjustable knee joint orthosis according to claim 1, characterized in that: The number of the screw holes (18) is equidistant and arranged in a fan-shaped manner at one end of the outer side of the fixed disk (7), and the scale line (19) is located near the outer edge of the fixed disk (7), and each scale value of the scale line (19) points to each screw hole (18).

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