Axial displacement orthosis

Abstract

The utility model relates to the field of medical rehabilitation instruments, in particular to an axial displacement orthosis. The axial displacement orthosis comprises a first mounting frame, a second mounting frame, a first connecting assembly and a second connecting assembly. The first mounting frame is hinged to the second mounting frame; the first connecting assembly is movably connected with the first mounting frame, and the second connecting assembly is connected with the second mounting frame; the first connecting assembly is used for moving relative to the first mounting frame under the action of external force so as to adjust the distance between the first connecting assembly and the hinged position of the first mounting frame and the second mounting frame. The axial displacement orthosis can correct axial alignment of a malformed joint, effectively helps a patient to relieve pain of the affected side joint, can avoid side effects caused by oral medicine taking, and is wide in application range, low in treatment cost and free of trauma.

Description

Technical Field

[0001] The utility model relates to the field of medical rehabilitation equipment, in particular to an axial displacement orthosis. Background Art

[0002] The knee joint is the largest load-bearing joint in the human body. In different sports, the maximum contact pressure between the femur and the tibia is several times the body weight. Knee arthritis is a disease based on degenerative pathological changes, which mostly occurs in middle-aged and elderly people. Its symptoms are mostly red, swollen and painful knees, pain when going up and down stairs, and knee pain when sitting up and walking. Some patients may also experience swelling, snapping and effusion. If not treated in time, it will cause joint deformity. Studies have shown that excessive joint pressure is one of the main causes of inducing or even accelerating the wear of articular cartilage and leading to symptoms of osteoarthritis. Reducing joint load can delay the symptoms of osteoarthritis, relieve patients' pain, and reduce structural damage to the knee joint.

[0003] At present, the common treatments for knee osteoarthritis in clinical practice include physical therapy, drug therapy, surgical treatment and biomechanical treatment. As traditional treatment methods, although physical therapy and drug therapy can effectively help patients relieve pain in the affected joint, the long-term effect is not ideal because they cannot correct the deformed axial alignment of the knee joint. In addition, oral medications have large side effects and are prone to cause gastrointestinal discomfort and induce gastric bleeding. Up to now, no drug can fundamentally solve the problem of osteoarthritis. Surgical treatment includes arthroscopic exploration and cleaning of the knee and knee replacement, etc., which have certain limitations in application scope, high treatment costs and large trauma, long postoperative recovery period, and the risk of complications after surgery. There is a possibility of secondary surgery, which is difficult to be generally accepted by patients. Therefore, people pay great attention to non-traditional treatment methods, and biomechanical knee orthosis, as a new treatment model, is currently widely used in the treatment of knee osteoarthritis because of its low cost, non-traumatic, and effective pain relief. Utility Model Content

[0004] The purpose of the utility model is to provide an axial displacement orthosis, which can correct the axial alignment of deformed joints, effectively help patients relieve pain in the affected joints, and avoid side effects caused by oral medications. It has a wide range of applications, low treatment costs, and is non-traumatic.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides an axial displacement orthosis, the axial displacement orthosis comprising a first mounting frame, a second mounting frame, a first connecting assembly and a second connecting assembly;

[0007] The first mounting frame is hinged to the second mounting frame; the first connecting assembly is movably connected to the first mounting frame, and the second connecting assembly is connected to the second mounting frame;

[0008] The first connecting component is used to move relative to the first mounting frame under the action of external force to adjust the spacing between the first connecting component and the hinge between the first mounting frame and the second mounting frame.

[0009] In an optional embodiment, the first connecting assembly includes a movable frame and a first connecting sleeve, and the first connecting sleeve is connected to the movable frame;

[0010] The second connecting assembly includes a connecting frame and a second connecting sleeve, and the second connecting sleeve is connected to the connecting frame;

[0011] The movable frame is slidably connected to the first mounting frame along the extension direction of the first mounting frame; and the connecting frame is connected to the second mounting frame.

[0012] In an optional embodiment, the axial displacement orthosis further includes a driving assembly, which is disposed at the sliding connection between the movable frame and the first mounting frame and is used to drive the movable frame to slide relative to the first mounting frame.

[0013] In an optional embodiment, the first mounting frame is provided with a sliding plate, and the movable frame is slidably connected to the sliding plate.

[0014] In an optional embodiment, the driving assembly includes a movable rack, a driving gear and a locking rod; the movable rack is connected to the movable frame, the locking rod is threadedly connected to the sliding plate, and the driving gear is rotatably connected to the locking rod;

[0015] Among them, the locking rod is used to limit the rotation of the driving gear relative to the sliding plate; the driving gear is engaged with the movable rack, and the driving gear is used to rotate relative to the locking rod under the action of external force to drive the movable rack and the movable frame to slide relative to the sliding plate.

[0016] In an optional embodiment, the sliding plate is provided with at least one first guide portion, and the movable frame is provided with at least one second guide portion cooperating with the first guide portion;

[0017] One of the first guide portion and the second guide portion is a guide groove, and the other is a guide protrusion, and the extending direction of the guide groove is parallel to the extending direction of the sliding plate and the movable rack.

[0018] In an optional embodiment, the first guide portion is a guide protrusion, and the second guide portion is a guide groove;

[0019] The locking rod is slidably matched with the guide groove, and the movable rack is located on one side of the guide groove along its extending direction.

[0020] In an optional embodiment, the movable frame is sleeved on the sliding plate.

[0021] In an optional embodiment, the axial displacement orthosis further includes a limiting pressure plate, which is connected to the movable frame and is used to abut against the locking rod.

[0022] In an optional embodiment, the axial displacement orthosis further includes two limiting pressure plates, and the two limiting pressure plates are distributed at both ends of the guide groove.

[0023] The beneficial effects of the embodiments of the utility model include:

[0024] The axial displacement orthosis includes a first mounting frame, a second mounting frame, a first connecting assembly and a second connecting assembly; the first mounting frame is hinged with the second mounting frame; the first connecting assembly is movably connected to the first mounting frame, and the second connecting assembly is connected to the second mounting frame; wherein the first connecting assembly is used to move relative to the first mounting frame under the action of an external force to adjust the spacing of the first connecting assembly relative to the hinge of the first mounting frame and the second mounting frame. The axial displacement orthosis can correct the axial alignment of deformed joints, effectively help patients relieve pain in the affected joints, and avoid side effects caused by oral medications, and has a wide range of applications, low treatment costs, and is non-traumatic. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the axial displacement orthosis in the embodiment of the utility model;

[0027] Figure 2 This is a schematic structural diagram of the first connecting assembly and the sliding plate in an embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the first connecting component in an embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of the structure of the sliding plate in the embodiment of the utility model.

[0030] Icon: 100-axial displacement orthosis; 110-first mounting frame; 120-second mounting frame; 130-first connecting assembly; 140-second connecting assembly; 131-movable frame; 132-first connecting sleeve; 150-driving assembly; 111-sliding plate; 151-movable rack; 152-driving gear; 153-locking rod; 112-first guide part; 133-second guide part; 113-guide protrusion; 134-guide groove; 161-limiting pressure plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Please refer to Figure 1 and Figure 2 , this embodiment provides an axial displacement orthosis 100, the axial displacement orthosis 100 includes a first mounting frame 110, a second mounting frame 120, a first connecting assembly 130 and a second connecting assembly 140;

[0038] The first mounting frame 110 is hinged to the second mounting frame 120; the first connecting assembly 130 is movably connected to the first mounting frame 110, and the second connecting assembly 140 is connected to the second mounting frame 120;

[0039] The first connecting component 130 is used to move relative to the first mounting frame 110 under the action of external force, so as to adjust the spacing between the first connecting component 130 and the hinge between the first mounting frame 110 and the second mounting frame 120 .

[0040] Please refer to Figure 1 and Figure 2 The working principle of the axial displacement orthosis 100 is:

[0041] During the use of the axial displacement orthosis 100, its function is to assist in rehabilitation by decompressing the joint. In this embodiment, the application of the axial displacement orthosis 100 in the treatment of knee osteoarthritis is used as an example for explanation.

[0042] Specifically, the axial displacement orthosis 100 includes a first mounting frame 110, a second mounting frame 120, a first connecting assembly 130 and a second connecting assembly 140; the first mounting frame 110 is hinged to the second mounting frame 120; the first connecting assembly 130 is movably connected to the first mounting frame 110, and the second connecting assembly 140 is connected to the second mounting frame 120;

[0043] Among them, when the axial displacement orthosis 100 is used for the treatment of knee osteoarthritis, the first connecting component 130 and the second connecting component 140 are respectively sleeved on the thigh and calf of the diseased knee joint, and the hinge of the first mounting frame 110 and the second mounting frame 120 is located at the diseased knee joint. Therefore, after the first connecting component 130 and the second connecting component 140 are respectively sleeved on the thigh and calf of the diseased knee joint, an external force can be applied to the first connecting component 130 so that the first connecting component 130 moves relative to the first mounting frame 110 under the action of the external force, and then the spacing of the first connecting component 130 relative to the hinge of the first mounting frame 110 and the second mounting frame 120 can be adjusted, thereby reducing the force of the femur toward the knee joint, thereby achieving decompression of the knee joint. Moreover, such a setting method, on the basis of the above-mentioned structural setting, can correct the deformed axial alignment of the knee joint, effectively help patients reduce the pain of the affected joint, and can avoid the side effects caused by oral medication. In addition, it has a wide range of applications, low treatment costs, and is non-traumatic.

[0044] It should be noted that under normal physiological conditions, when the human body is in a standing position, the center of the femoral head, the center of the knee joint and the center of the ankle joint should be in the same straight line, which is the physiological anatomical force line of the lower limbs. Compared with the range of motion of a normal person, the flexion angle of uni-ankle and bi-ankle osteoarthritis is relatively small, the inversion (or valgus) angle is large, and the force line is offset. Therefore, by respectively sleeve-fitting the first connecting component 130 and the second connecting component 140 on the thigh and calf of the diseased knee joint, and then making the first mounting frame 110 and the second mounting frame 120 rotate relative to each other, the force line can be corrected.

[0045] For further information, please refer to Figure 1-Figure 4 In this embodiment, when configuring the first connecting component 130 and the second connecting component 140 of the above structure, the first connecting component 130 may include a movable frame 131 and a first connecting sleeve 132, and the first connecting sleeve 132 is connected to the movable frame 131; and the second connecting component 140 includes a connecting frame and a second connecting sleeve, and the second connecting sleeve is connected to the connecting frame; wherein the movable frame 131 is slidably connected to the first mounting frame 110 along the extension direction of the first mounting frame 110; and the connecting frame is connected to the second mounting frame 120.

[0046] Therefore, when realizing the above-mentioned axial displacement of the knee joint, when the first connecting sleeve 132 and the second connecting sleeve are respectively sleeved on the thigh and calf of the diseased knee joint, the movable frame 131 moves relative to the first mounting frame 110 in the direction away from the second connecting component 140, thereby realizing the axial displacement of the knee joint, so that the force applied to the knee joint by the femur at the thigh can be transmitted to the second connecting component 140 through the first connecting sleeve 132 and the movable frame 131, thereby decompressing the knee joint.

[0047] For further information, please refer to Figure 1-Figure 4 In this embodiment, based on the above content, when the knee joint is axially displaced, in order to enable the movable frame 131 to move relative to the first mounting frame 110 in a direction away from the second connecting assembly 140, that is, to adjust the travel and direction of the movable frame 131 relative to the first mounting frame 110, the axial displacement orthosis 100 further includes a driving assembly 150, which is disposed at the sliding connection between the movable frame 131 and the first mounting frame 110 and is used to drive the sliding of the movable frame 131 relative to the first mounting frame 110. By disposing the driving assembly 150, the steps of axial displacement can be simplified, and the travel distance of the movable frame 131 during decompression movement can be controlled.

[0048] Specifically, first, in order to make the movable frame 131 slidably connected to the first mounting frame 110, the first mounting frame 110 is provided with a sliding plate 111, and the movable frame 131 is slidably connected to the sliding plate 111. In addition, in this embodiment, in order to improve the accuracy of the movement, the movable frame 131 is sleeved on the sliding plate 111. In other embodiments of the utility model, other types of structural settings may also be used.

[0049] In order to improve the movement accuracy of the movable frame 131, the driving assembly 150 may include a movable rack 151, a driving gear 152 and a locking rod 153; the movable rack 151 is connected to the movable frame 131, the locking rod 153 is threadedly connected to the sliding plate 111, and the driving gear 152 is rotatably connected to the locking rod 153;

[0050] Among them, the locking rod 153 is used to limit the rotation of the driving gear 152 relative to the sliding plate 111; the driving gear 152 is engaged with the movable rack 151, and the driving gear 152 is used to rotate relative to the locking rod 153 under the action of external force to drive the movable rack 151 and the movable frame 131 to slide relative to the sliding plate 111.

[0051] Therefore, through the above-mentioned structural setting, during use, the driving gear 152 can be restricted from rotating by the action of the locking rod, so that the driving gear 152 can be unlocked when axial displacement is performed, so that the user or medical staff can rotate the driving gear 152, thereby driving the movable rack 151 and the movable frame 131 to slide relative to the sliding plate 111 to achieve axial displacement of the knee joint; and after the movable frame 131 moves to the decompression position, the locking rod 153 can be rotated to make it press against the driving gear 152, thereby restricting the rotation of the driving gear 152, so that the movable frame 131 can remain in the decompression position.

[0052] For further information, please refer to Figure 1-Figure 4 In the process of the movable frame 131 moving, since the present embodiment adopts the method that the movable frame 131 is sleeved on the sliding plate 111, it can play a guiding role, thereby improving the movement accuracy of the movable frame 131, and on this basis, at least one first guide portion 112 can be configured on the sliding plate 111, and the movable frame 131 can be configured with at least one second guide portion 133 that cooperates with the first guide portion 112; one of the first guide portion 112 and the second guide portion 133 is a guide groove 134, and the other is a guide protrusion 113, and the extension direction of the guide groove 134 is parallel to the extension direction of the sliding plate 111 and the movable rack 151; and the first guide portion 112 is the guide protrusion 113, the second guide portion 133 is the guide groove 134, the locking rod 153 is slidably matched with the guide groove 134, and the movable rack 151 is located on one side of the guide groove 134 along its extension direction.

[0053] Therefore, the stability of the activity of the movable frame 131 can be ensured in this way. At the same time, the movement stroke of the movable frame 131 can be observed and measured by changing the relative position of the locking rod 153 and the guide groove 134 .

[0054] Since the present embodiment adopts the method that the movable frame 131 is sleeved on the sliding plate 111, and the movable frame 131 is provided with a guide groove 134, therefore, in order to prevent the movable frame 131 from being deformed during use, thereby reducing the stability of the fit or the accuracy of the activity, the axial displacement orthosis 100 further includes a limiting pressure plate 161, which is connected to the movable frame 131 and is used to abut against the locking rod 153. By setting the limiting pressure plate 161, the guide groove 134 can be prevented from being deformed during use, thereby ensuring the stability of the fit between the locking rod 153 and the guide groove 134, and when configuring the limiting pressure plate 161, the axial displacement orthosis 100 adopts the method of setting two limiting pressure plates 161, which are distributed at both ends of the guide groove 134, so that in this way, the movable frame 131 can be prevented from being out of fit with the sliding plate 111.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. that achieves axial displacement and corrects deformed joint axial alignment within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An axial displacement orthosis, characterized in that: The axial displacement orthosis comprises a first mounting frame, a second mounting frame, a first connecting assembly and a second connecting assembly; The first mounting frame is hinged to the second mounting frame; the first connecting component is movably connected to the first mounting frame, and the second connecting component is connected to the second mounting frame; The first connecting component is used to move relative to the first mounting frame under the action of external force to adjust the distance between the first connecting component and the hinge between the first mounting frame and the second mounting frame.

2. The axial displacement orthosis according to claim 1, characterized in that: The first connecting assembly includes a movable frame and a first connecting sleeve, and the first connecting sleeve is connected to the movable frame; The second connecting assembly includes a connecting frame and a second connecting sleeve, and the second connecting sleeve is connected to the connecting frame; The movable frame is slidably connected to the first mounting frame along the extension direction of the first mounting frame; and the connecting frame is connected to the second mounting frame.

3. The axial displacement orthosis according to claim 2, characterized in that: The axial displacement orthosis further comprises a driving assembly, which is disposed at the sliding connection between the movable frame and the first mounting frame and is used to drive the movable frame to slide relative to the first mounting frame.

4. The axial displacement orthosis according to claim 3, characterized in that: The first mounting frame is provided with a sliding plate, and the movable frame is slidably connected to the sliding plate.

5. The axial displacement orthosis according to claim 4, characterized in that: The driving assembly includes a movable rack, a driving gear and a locking rod; the movable rack is connected to the movable frame, the locking rod is threadedly connected to the sliding plate, and the driving gear is rotatably connected to the locking rod; Among them, the locking rod is used to limit the rotation of the driving gear relative to the sliding plate; the driving gear is engaged with the movable rack, and the driving gear is used to rotate relative to the locking rod under the action of external force to drive the movable rack and the movable frame to slide relative to the sliding plate.

6. The axial displacement orthosis according to claim 5, characterized in that: The sliding plate is provided with at least one first guide portion, and the movable frame is provided with at least one second guide portion cooperating with the first guide portion; One of the first guide portion and the second guide portion is a guide groove, and the other is a guide protrusion, and an extending direction of the guide groove is parallel to an extending direction of the sliding plate and the movable rack.

7. The axial displacement orthosis according to claim 6, characterized in that: The first guide portion is a guide protrusion, and the second guide portion is a guide groove; The locking rod is slidably matched with the guide groove, and the movable rack is located on one side of the guide groove along its extending direction.

8. The axial displacement orthosis according to claim 7, characterized in that: The movable frame is sleeved on the sliding plate.

9. The axial displacement orthosis according to claim 7, characterized in that: The axial displacement orthosis further comprises a limiting pressure plate, which is connected to the movable frame and is used for abutting against the locking rod.

10. The axial displacement orthosis according to claim 9, characterized in that: The axial displacement orthosis further comprises two limit pressure plates, and the two limit pressure plates are distributed at both ends of the guide groove.

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