Axial displacement orthosis

Abstract

The present disclosure relates to the field of medical rehabilitation instruments, and 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 to the first mounting frame, and the second connecting assembly is connected to the second mounting frame, wherein the first connecting assembly is configured to move relative to the first mounting frame under the action of an external force so as to adjust the distance between the first connecting assembly and a hinged position of the first mounting frame and the second mounting frame. The axial displacement orthosis can correct the axis malalignments of the joint, effectively help a patient to relieve the pain of the affected joint, can avoid side effects caused by oral medications, and features wide application range, low treatment costs, and non-invasion.

Description

Axial displacement orthotics

[0001] Cross-references to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 2024208943718, entitled "Axial Displacement Orthosis," filed on April 26, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of medical rehabilitation devices, and more specifically, to an axial displacement orthosis. Background Technology

[0004] The knee joint is the largest weight-bearing joint in the human body. During various movements, the maximum contact pressure between the femur and tibia is several times the body weight. Knee osteoarthritis is a disease based on degenerative pathological changes, mostly affecting middle-aged and elderly people. Its symptoms often manifest as redness, swelling, and pain in the knee, pain when going up and down stairs, and soreness and discomfort in the knee when sitting, standing, or walking. Some patients may also experience swelling, popping sounds, and effusion. If left untreated, it can lead to joint deformities. Studies have shown that excessive joint pressure is one of the main causes of osteoarthritis symptoms, inducing or even accelerating the wear and tear of articular cartilage. Reducing joint load can delay the onset of osteoarthritis, alleviate patient pain, and reduce structural damage to the knee joint.

[0005] Currently, common clinical treatments for knee osteoarthritis include physical therapy, drug therapy, surgery, and biomechanical therapy. While traditional treatments like physical therapy and drug therapy can effectively alleviate pain in the affected joint, their long-term effectiveness is less than ideal because they cannot correct knee misalignment. Furthermore, oral medications often have significant side effects, easily causing gastrointestinal discomfort and inducing gastrointestinal bleeding. To date, no medication can fundamentally resolve the problem of osteoarthritis. Surgical treatments, including arthroscopic debridement and knee replacement, have limited application, are expensive and invasive, have long recovery periods, and carry the risk of postoperative complications, potentially requiring secondary surgery, making them difficult for patients to accept. Therefore, there is considerable interest in non-traditional treatments. Biomechanical knee orthotics, as a novel treatment modality, are currently being widely adopted in the treatment of knee osteoarthritis due to their lower cost, non-invasiveness, and effective pain relief.

[0006] Utility Model Content

[0007] The purpose of this disclosure is to provide an axial displacement orthosis that can correct deformed joint axial alignment, effectively help patients reduce pain in the affected joint, avoid the side effects caused by oral medications, and has a wide range of applications, low treatment costs, and is non-invasive.

[0008] The embodiments of this disclosure are implemented as follows:

[0009] In a first aspect, this disclosure provides an axial displacement orthosis, which includes a first mounting bracket, a second mounting bracket, a first connecting assembly, and a second connecting assembly;

[0010] The first mounting bracket is hinged to the second mounting bracket; the first connecting assembly is movably connected to the first mounting bracket, and the second connecting assembly is connected to the second mounting bracket;

[0011] The first connecting component is configured to move relative to the first mounting bracket under the action of an external force, so as to adjust the distance between the first connecting component and the hinge point of the first mounting bracket and the second mounting bracket.

[0012] In an optional embodiment, the first connecting component includes a movable frame and a first connecting sleeve, wherein the first connecting sleeve is connected to the movable frame;

[0013] The movable frame is slidably connected to the first mounting frame along the extension direction of the first mounting frame.

[0014] In an optional embodiment, the second connecting component includes a connecting frame and a second connecting sleeve, the second connecting sleeve being connected to the connecting frame; the connecting frame being connected to the second mounting frame.

[0015] In an optional embodiment, the axial displacement orthosis further includes a drive assembly disposed at the sliding connection between the movable frame and the first mounting frame, and configured to drive the movable frame to slide relative to the first mounting frame.

[0016] In an optional embodiment, the first mounting bracket is equipped with a sliding plate, and the movable bracket is slidably connected to the sliding plate.

[0017] In an optional embodiment, the drive assembly includes a movable rack, a drive 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 drive gear is rotatably connected to the locking rod.

[0018] The locking rod is configured to restrict the rotation of the drive gear relative to the sliding plate; the drive gear meshes with the movable rack, and the drive gear is configured to rotate relative to the locking rod under the action of an external force, so as to drive the movable rack and the movable frame to slide relative to the sliding plate.

[0019] In an optional implementation, the drive component is a hydraulic cylinder, the cylinder seat of which is connected to the sliding plate, and the piston rod of which is connected to the movable frame, configured to drive the movable frame to slide relative to the sliding plate.

[0020] 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 that cooperates with the first guide portion;

[0021] One of the first guide section and the second guide section is a guide groove, and the other is a guide protrusion. The extension direction of the guide groove is parallel to the extension direction of the sliding plate and the movable rack.

[0022] In an optional embodiment, the first guide portion is a guide protrusion, and the second guide portion is a guide groove;

[0023] The locking rod is slidably engaged with the guide groove, and the movable rack is located on one side of the guide groove along its extension direction.

[0024] In an optional embodiment, the guide protrusions are cylindrical and there are two of them, and the two guide protrusions are spaced apart along a direction parallel to the extension direction of the sliding plate and the movable rack.

[0025] In an alternative implementation, the locking lever is located between two guide protrusions.

[0026] In an optional embodiment, the first guide portion is elongated and extends in a direction parallel to the extending direction of the sliding plate and the movable rack.

[0027] In an optional implementation, the movable frame is fitted onto the sliding plate.

[0028] In an optional embodiment, the axial displacement orthosis further includes a limiting pressure plate connected to the movable frame and configured to abut against the locking rod.

[0029] In an optional embodiment, the axial displacement straightener further includes two limiting pressure plates, which are distributed at both ends of the guide groove.

[0030] The beneficial effects of the embodiments disclosed herein include:

[0031] This axial displacement orthosis includes a first mounting bracket, a second mounting bracket, a first connecting assembly, and a second connecting assembly. The first mounting bracket and the second mounting bracket are hinged. The first connecting assembly is movably connected to the first mounting bracket, and the second connecting assembly is connected to the second mounting bracket. The first connecting assembly is configured to move relative to the first mounting bracket under the action of an external force to adjust the distance between the first connecting assembly and the hinge point of the first and second mounting brackets. This axial displacement orthosis can correct axial misalignment of deformed joints, effectively helping patients reduce pain in the affected joint, avoiding the side effects caused by oral medications, and has a wide range of applications, low treatment costs, and is non-invasive. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 is a schematic diagram of the axial displacement orthopedic device in an embodiment of this disclosure;

[0034] Figure 2 is a schematic diagram of the structure of the first connecting component and the sliding plate in an embodiment of this disclosure;

[0035] Figure 3 is a schematic diagram of the structure of the first connecting component in an embodiment of this disclosure;

[0036] Figure 4 is a schematic diagram of the structure of the sliding plate in an embodiment of this disclosure.

[0037] Icons: 100 - Axial displacement orthosis; 110 - First mounting bracket; 120 - Second mounting bracket; 130 - First connecting assembly; 140 - Second connecting assembly; 131 - Movable frame; 132 - First connecting sleeve; 150 - Drive assembly; 111 - Sliding plate; 151 - Movable rack; 152 - Drive gear; 153 - Locking rod; 112 - First guide part; 133 - Second guide part; 113 - Guide protrusion; 134 - Guide groove; 161 - Limiting pressure plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. In addition, the terms "first," "second," and "third," etc., are only configured to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply 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.

[0043] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0044] Please refer to Figures 1 and 2. This embodiment provides an axial displacement orthosis 100, which includes a first mounting frame 110, a second mounting frame 120, a first connecting component 130, and a second connecting component 140.

[0045] The first mounting bracket 110 is hinged to the second mounting bracket 120; the first connecting assembly 130 is movably connected to the first mounting bracket 110, and the second connecting assembly 140 is connected to the second mounting bracket 120.

[0046] The first connecting component 130 is configured to move relative to the first mounting bracket 110 under the action of an external force, so as to adjust the distance between the first connecting component 130 and the hinge point between the first mounting bracket 110 and the second mounting bracket 120.

[0047] Please refer to Figures 1 and 2. The working principle of the axial displacement orthodon 100 is as follows:

[0048] During use, the axial displacement orthosis 100 helps to relieve pressure on the joint, thereby aiding in rehabilitation. In this embodiment, the axial displacement orthosis 100 is used as an example in the treatment of knee osteoarthritis.

[0049] Specifically, the axial displacement orthosis 100 includes a first mounting bracket 110, a second mounting bracket 120, a first connecting assembly 130, and a second connecting assembly 140; the first mounting bracket 110 and the second mounting bracket 120 are hinged; the first connecting assembly 130 is movably connected to the first mounting bracket 110, and the second connecting assembly 140 is connected to the second mounting bracket 120.

[0050] In the case of the axial displacement orthosis 100 configured for the treatment of knee osteoarthritis, the first connecting component 130 and the second connecting component 140 are respectively fitted onto the thigh and calf of the affected knee joint, and the hinge of the first mounting bracket 110 and the second mounting bracket 120 is located at the affected knee joint. Therefore, after the first connecting component 130 and the second connecting component 140 are respectively fitted onto the thigh and calf of the affected knee joint, an external force can be applied to the first connecting component 130, causing the first connecting component 130 to move relative to the first mounting bracket 110 under the action of the external force. This allows for adjustment of the distance between the first connecting component 130 and the hinge of the first mounting bracket 110 and the second mounting bracket 120, thereby reducing the force exerted by the femur towards the knee joint and thus decompressing the knee joint. Moreover, this configuration, based on the above structural settings, can correct the axial alignment of the deformed knee joint, effectively helping patients reduce pain in the affected joint, and avoiding the side effects caused by oral medications. It also has a wide range of applications, low treatment costs, and is non-invasive.

[0051] It should be noted that under normal physiological conditions, when a person is standing, the center of the femoral head, the center of the knee joint, and the center of the ankle joint should be on the same straight line. This straight line is the physiological and anatomical force line of the lower limb. However, compared with the normal range of motion, uni-ankle and bi-ankle osteoarthritis have a relatively small flexion angle and a large inversion (or eversion) angle, resulting in a force line deviation. Therefore, by fitting the first connecting component 130 and the second connecting component 140 onto the thigh and lower leg of the affected knee joint, respectively, the first mounting bracket 110 and the second mounting bracket 120 can rotate relative to each other, thereby correcting the force line.

[0052] Referring to Figures 1-4, in this embodiment, when configuring the first connecting component 130 and the second connecting component 140 of the above-described structure, the first connecting component 130 may include a movable frame 131 and a first connecting sleeve 132, with the first connecting sleeve 132 connected to the movable frame 131; while the second connecting component 140 includes a connecting frame and a second connecting sleeve, with the second connecting sleeve connected to the connecting frame; wherein, the movable frame 131 is slidably connected to the first mounting frame 110 along the extending direction of the first mounting frame 110; the connecting frame is connected to the second mounting frame 120.

[0053] Therefore, when the above-mentioned axial displacement of the knee joint is achieved, the first connecting sleeve 132 and the second connecting sleeve are respectively fitted onto the thigh and lower leg of the affected knee joint. The movable frame 131 moves relative to the first mounting frame 110 in a direction away from the second connecting component 140, thereby achieving axial displacement of the knee joint. This allows the force exerted on the knee joint by the femur at the thigh to be transmitted to the second connecting component 140 through the first connecting sleeve 132 and the movable frame 131, thereby reducing pressure on the knee joint.

[0054] Referring to Figures 1-4, in this embodiment, based on the above, during axial displacement of the knee joint, 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 allow adjustment of the stroke and direction of movement of the movable frame 131 relative to the first mounting frame 110—the axial displacement orthosis 100 further includes a drive assembly 150. The drive assembly 150 is disposed at the sliding connection between the movable frame 131 and the first mounting frame 110 and configured to drive the sliding of the movable frame 131 relative to the first mounting frame 110. The drive assembly 150 simplifies the axial displacement process and controls the stroke distance of the movable frame 131 during decompression movements.

[0055] Specifically, firstly, to allow the movable frame 131 to be slidably connected to the first mounting frame 110, the first mounting frame 110 is equipped with a sliding plate 111, and the movable frame 131 is slidably connected to the sliding plate 111. Moreover, in this embodiment, to improve the accuracy of movement, the movable frame 131 is fitted onto the sliding plate 111. In other embodiments of this disclosure, other types of structural arrangements may also be used.

[0056] To improve the motion accuracy of the movable frame 131, the drive assembly 150 may include a movable rack 151, a drive 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 drive gear 152 is rotatably connected to the locking rod 153.

[0057] The locking rod 153 is configured to restrict the rotation of the drive gear 152 relative to the sliding plate 111; the drive gear 152 meshes with the movable rack 151, and the drive gear 152 is configured to rotate relative to the locking rod 153 under the action of an external force, so as to drive the movable rack 151 and the movable frame 131 to slide relative to the sliding plate 111.

[0058] Therefore, through the above-described structural design, the locking rod 153 can restrict the rotation of the drive gear 152 during use, thereby unlocking the drive gear 152 during axial displacement. This allows the user or medical personnel to rotate the drive gear 152, thereby causing the movable rack 151 and the movable frame 131 to slide relative to the sliding plate 111, thus achieving axial displacement of the knee joint. After the movable frame 131 moves to the decompression position, the locking rod 153 can be rotated to abut against the drive gear 152, thereby restricting the rotation of the drive gear 152 and keeping the movable frame 131 in the decompression position.

[0059] In other embodiments, the drive assembly 150 may also be a hydraulic cylinder. In practical applications, the cylinder seat of the hydraulic cylinder is connected to the sliding plate 111, and the piston rod of the hydraulic cylinder is connected to the movable frame 131, configured to drive the movable frame 131 to slide relative to the sliding plate 111. Similarly, after the movable frame 131 moves to the decompression position, the hydraulic cylinder maintains the position of the piston rod, allowing the movable frame 131 to remain in the decompression position. Optionally, the drive assembly 150 may also be a pneumatic cylinder, which will not be elaborated further here.

[0060] Referring to Figures 1-4, during the movement of the movable frame 131, since this embodiment uses the movable frame 131 fitted onto the sliding plate 111, it can play a guiding role, thereby improving the movement accuracy of the movable frame 131. On this basis, at least one first guide portion 112 can be configured on the sliding plate 111, and at least one second guide portion 133 that cooperates with the first guide portion 112 can be configured on the movable frame 131. 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. The extension direction of the guide groove 134 is parallel to the extension direction of the sliding plate 111 and the movable rack 151. Moreover, the first guide portion 112 is a guide protrusion 113, the second guide portion 133 is a guide groove 134, the locking rod 153 is slidably engaged with the guide groove 134, and the movable rack 151 is located on one side of the guide groove 134 along its extension direction.

[0061] Therefore, this method can facilitate the stability of the movable frame 131's movement, and at the same time, the change in the relative position of the locking rod 153 and the guide groove 134 can facilitate the observation and measurement of the movement stroke of the movable frame 131.

[0062] Additionally, as shown in Figure 4, in some embodiments, based on the principle that two points determine a straight line, the guide protrusions 113 are cylindrical and there are two of them. The two guide protrusions 113 are spaced apart along a direction parallel to the extending direction of the sliding plate 111 and the movable rack 151. Optionally, the locking rod 153 is located between the two guide protrusions 113. In other embodiments, the first guide portion 112 is elongated and extends along a direction parallel to the extending direction of the sliding plate 111 and the movable rack 151. It is easy to understand that this embodiment also achieves the beneficial effect of ensuring the stability of the movable frame's movement. Since this embodiment uses a movable frame 131 fitted onto a sliding plate 111, and the movable frame 131 has a guide groove 134, to prevent deformation of the movable frame 131 during use, which could reduce the stability of the fit or the accuracy of the movement, the axial displacement orthodontist 100 also includes a limiting pressure plate 161. The limiting pressure plate 161 is connected to the movable frame 131 and configured to abut against the locking rod 153. The limiting pressure plate 161 prevents deformation of the guide groove 134 during use, thus ensuring the stability of the fit between the locking rod 153 and the guide groove 134. Furthermore, the axial displacement orthodontist 100 uses two limiting pressure plates 161, distributed at both ends of the guide groove 134, which prevents the movable frame 131 from disengaging from the sliding plate 111.

[0063] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made that achieve axial displacement and correct deformed joint axial alignment within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure. Industrial applicability

[0064] In summary, this disclosure provides an axial displacement orthosis that can correct deformed joint axial alignment, effectively help patients reduce pain in the affected joint, avoid the side effects caused by oral medications, and has a wide range of applications, low treatment costs, and is non-invasive.

Claims

1. An axial displacement orthotic, characterized in that: The axial displacement orthosis includes a first mounting bracket, a second mounting bracket, a first connecting assembly, and a second connecting assembly; The first mounting bracket is hinged to the second mounting bracket; the first connecting assembly is movably connected to the first mounting bracket, and the second connecting assembly is connected to the second mounting bracket; The first connecting component is configured to move relative to the first mounting bracket under the action of an external force, so as to adjust the distance between the first connecting component and the hinge point of the first mounting bracket and the second mounting bracket.

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

3. The axial displacement orthosis according to claim 1 or 2, characterized in that: The second connecting component includes a connecting frame and a second connecting sleeve, the second connecting sleeve being connected to the connecting frame; the connecting frame being connected to the second mounting frame.

4. The axial displacement orthosis according to claim 2 or 3, characterized in that: The axial displacement orthosis further includes a drive assembly disposed at the sliding connection between the movable frame and the first mounting frame, and configured to drive the movable frame to slide relative to the first mounting frame.

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

6. The axial displacement orthosis according to claim 5, characterized in that: The drive assembly includes a movable rack, a drive 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 drive gear is rotatably connected to the locking rod. The locking rod is configured to restrict the rotation of the drive gear relative to the sliding plate; the drive gear meshes with the movable rack, and the drive gear is configured to rotate relative to the locking rod under the action of an external force, so as to drive the movable rack and the movable frame to slide relative to the sliding plate.

7. The axial displacement orthosis according to claim 5, characterized in that: The driving component is a hydraulic cylinder, the cylinder seat of the hydraulic cylinder is connected to the sliding plate, and the piston rod of the hydraulic cylinder is connected to the movable frame, configured to drive the movable frame to slide relative to the sliding plate.

8. The axial displacement orthosis according to claim 6, 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 that cooperates 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 the extending direction of the guide groove is parallel to the extending direction of the sliding plate and the movable rack.

9. The axial displacement orthosis according to claim 8, 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 engaged with the guide groove, and the movable rack is located on one side of the guide groove along its extension direction.

10. The axial displacement orthosis according to claim 9, characterized in that: The guide protrusions are cylindrical and there are two of them. The two guide protrusions are spaced apart along a direction parallel to the extension direction of the sliding plate and the movable rack.

11. The axial displacement orthosis according to claim 10, characterized in that: The locking rod is located between the two guide protrusions.

12. The axial displacement orthosis according to claim 9, characterized in that: The first guide portion is elongated and extends in a direction parallel to the extending direction of the sliding plate and the movable rack.

13. The axial displacement orthosis according to any one of claims 5 to 12, characterized in that: The movable frame is fitted onto the sliding plate.

14. The axial displacement orthosis according to any one of claims 4 to 13, characterized in that: The axial displacement orthosis further includes a limiting pressure plate, which is connected to the movable frame and configured to abut against the locking rod.

15. The axial displacement orthosis according to claim 14, characterized in that: The axial displacement straightener also includes two limiting pressure plates, which are distributed at both ends of the guide groove.

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