An orthopedic care joint protector
By designing an orthopedic joint protection device, the problem of secondary injury caused by joint bending in patients is solved. The joint bending angle can be adjusted by a limiter and a sliding seat to achieve safe rehabilitation training results.
Patent Information
- Application Number
- CN202511401592.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2045-09-28
AI Technical Summary
Existing orthopedic joint fixation devices can easily cause joints to bend again when patients move, leading to periosteal friction and secondary damage. This is especially true for patients with severe injuries who cannot control the degree of joint flexion, thus affecting the effectiveness of rehabilitation training.
An orthopedic joint protection device was designed, including a joint protection structure, a wearable positioning structure, a movement restriction structure, and a training structure. The joint bending angle is adjusted by the limiter and the sliding seat, and the training structure provides a reaction force for rehabilitation training.
It effectively prevents secondary joint damage, increases device adaptability, adjusts the degree of joint flexion according to the patient's recovery, and achieves safe rehabilitation training.
Smart Images

Figure CN121059357B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to an orthopedic joint protection device. Background Technology
[0002] Joint protective structures refer to natural or artificial devices that protect human joints from injury or assist in the recovery of function. Natural protective structures include ligaments, joint capsules, cartilage, menisci, tendons and muscles, as well as synovial fluid, which together constitute the anatomical defense system of the joint. Externally worn braces, splints, tapings, or orthotics prevent sports injuries, protect damaged joints, or assist in postoperative rehabilitation by supporting the joint, limiting abnormal movements, distributing load, or enhancing proprioception.
[0003] A search revealed that patent CN204501145U discloses an orthopedic joint fixation and limiting protective cover, belonging to the field of orthopedic technology, specifically relating to an orthopedic joint fixation and limiting protective cover. This orthopedic joint fixation and limiting protective cover includes a main limiting cover, a secondary limiting cover, and fastening straps. The main and secondary limiting covers are joined together by a rotating buckle to form a hollow hemispherical cover. Fastening straps are provided on both the main and secondary limiting covers. The main limiting cover has multiple limiting and fixing holes, and the secondary limiting cover has fastening bolts. Its advantages are: suitable for fixation and limiting of various joints, with a reasonable structural design, easy to use, small size, and no impact on normal life after tightening, facilitating the patient's recovery after reduction.
[0004] However, in actual use of the above solutions, while wearing them can prevent damage to the joints caused by external impacts, doctors will recommend reducing exercise after a joint injury. However, some patients will bend their joints when moving. If the injured joint is bent again, it will cause the periosteum to rub against each other again, leading to secondary damage.
[0005] For patients with more severe injuries, doctors will recommend gradually increasing the range of motion of the joint. Some patients cannot control the degree of joint flexion, which not only fails to achieve the effect of rehabilitation training, but may also cause secondary damage to the joint and affect work efficiency. Summary of the Invention
[0006] The purpose of this invention is to solve the problem in the prior art that when patients move, their joints bend, and if the injured joint is bent again, it will cause the periosteum to rub against each other again, resulting in secondary damage. Therefore, this invention proposes an orthopedic joint protection device.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] An orthopedic joint protection device includes: a joint protection structure, a wearable positioning structure on the top of the joint protection structure, activity restriction structures on both sides of the joint protection structure, and training structures on the surface of the joint protection structure and the surface of the wearable positioning structure;
[0009] The joint protection structure is used to protect the knee joint and position the lower leg, the wearable positioning structure is used to position the thigh, the movement restriction structure is used to limit the joint flexion angle, and the training structure is used to apply a reaction force to the lower leg when it is flexed.
[0010] The joint protection structure includes a calf guard plate, with connecting shafts fixedly installed on both sides of the upper end of the calf guard plate, and a thigh guard plate rotatably mounted on the connecting shafts.
[0011] Optionally, a knee guard is rotatably mounted on the connecting shaft, the knee guard is located between the thigh guard and the calf guard, and an inner cushioning cotton is fixedly installed inside the knee guard.
[0012] Optionally, through holes are symmetrically provided on both sides of the calf guard and the thigh guard, and an elastic band is fixedly connected between two horizontally adjacent through holes. One end of the elastic band is provided with Velcro, and a positioning plate is slidably provided between the surfaces of the elastic band.
[0013] Optionally, rubber positioning blocks are fixedly connected to the inner walls of the calf guard and the thigh guard, respectively, and a first strap is fixedly connected inside the rubber positioning block, the first strap being tied to the user's leg.
[0014] Optionally, the activity limiting structure includes a collar fixedly connected to the surface of the connecting shaft, an extension rod fixedly connected to the surface of the collar, and a guide slide rod fixedly connected to the end of the extension rod away from the collar.
[0015] Optionally, a limiter is rotatably connected to the surface of the connecting shaft. An arc-shaped groove is formed through the surface of the limiter, and an arc-shaped plate is fixedly connected to the inner wall of the limiter. Positioning holes are uniformly formed along the arc surface on the surface of the arc plate.
[0016] Optionally, an arc-shaped rod is fixedly connected to the inner wall of the limiter, and a sliding seat is slidably disposed on the surface of the arc-shaped rod. The sliding seat is in close contact with the inner wall of the limiter, and scale lines are opened on the side wall of the limiter.
[0017] Optionally, a lifting rod is slidably arranged inside the sliding seat. A pressure ring is fixedly connected to the top end of the lifting rod. A bottom liner is fixedly connected to the end of the lifting rod away from the pressure ring. The bottom liner is located at the bottom end of the arc-shaped plate. A plug-in rod is fixedly connected to the top surface of the bottom liner. The plug-in rod is inserted into the inner wall of the positioning hole. A return spring is sleeved on the surface of the lifting rod. The two ends of the return spring are fixedly connected to the sliding seat and the bottom liner, respectively.
[0018] Optionally, the guide rod is slidably disposed on the inner wall of the arc-shaped groove.
[0019] Optionally, a guide frame is fixedly connected to the top of the thigh guard surface, and a plug-in seat is fixedly connected to the bottom of the thigh guard surface. A fixed plug rod is slidably arranged inside the guide frame, and the bottom end of the fixed plug rod is inserted into the plug-in seat. A guide groove is formed on the surface of the fixed plug rod, and a threaded rod is slidably arranged inside the guide groove. A fixed knob is threadedly connected to the surface of the threaded rod. A fixing block is fixedly connected to the bottom of the calf guard, and a positioning shaft is fixedly connected inside the fixing block. A second strap is fixedly connected to the surface of the positioning shaft, and the end of the second strap away from the positioning shaft is fixedly connected to the surface of the threaded rod.
[0020] Compared with the prior art, the beneficial effects of the present invention are:
[0021] In the above solution, by setting up a joint protection structure, when in use, calf guards and thigh guards are worn on the lower leg and thigh respectively. After wearing, the knee guard is always located at the front of the joint, which can effectively prevent damage to the joint.
[0022] By setting up an activity restriction structure, after the user puts on the joint protection structure, the guide slide is inside the arc groove. At the same time, the limiter is equipped with a plug rod that can restrict the movement of the guide slide. This can lock the bending angle of the calf guard and thigh guard, which can effectively avoid the problem of slow recovery or secondary injury caused by joint movement during the recovery period.
[0023] By popping out from inside the positioning hole, the sliding seat can be slid on the surface of the arc-shaped rod. As the sliding seat moves, it causes the position of the insertion rod to change, which allows for adjustment of the angle limit of the extension rod. This allows the flexibility of the joint to be adjusted according to the patient's recovery, thus effectively increasing the overall adaptability of the device.
[0024] By setting up a training structure, the legs are fixed by the joint protection structure and the wearing positioning structure. After the movement restriction structure has been in place for a long time and recovered, the second bandage can generate a certain tension between the calf guard and the thigh guard. In this way, the legs can be trained by repeated bending. At the same time, the elasticity of the second bandage can be adjusted by adjusting the position of the threaded rod inside the guide groove, thereby adjusting the training intensity. Attached Figure Description
[0025] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.
[0026] Figure 1 This is the three-dimensional representation of the present invention. Figure 1 ;
[0027] Figure 2 yes Figure 1 The bend;
[0028] Figure 3 This is a rear view of the diagram of the present invention;
[0029] Figure 4 yes Figure 1 Rear view structural diagram;
[0030] Figure 5 This is a schematic diagram of the joint protection structure of the present invention;
[0031] Figure 6 This is a partial three-dimensional schematic diagram of the joint protection structure in this invention;
[0032] Figure 7 This is a three-dimensional schematic diagram of the activity restriction structure in this invention;
[0033] Figure 8 In this invention Figure 2 Enlarged view of point A in the middle;
[0034] Figure 9 In this invention Figure 2 Enlarged diagram of point B in the middle.
[0035] In the diagram: 1. Joint protection structure; 2. Wearing positioning structure; 3. Movement restriction structure; 4. Lower leg guard; 5. Connecting shaft; 6. Thigh guard; 7. Knee guard; 8. Inner lining cushioning cotton; 10. Through hole; 11. Elastic band; 12. Velcro; 13. Positioning plate; 14. Rubber positioning block; 15. First strap; 16. Loop; 17. Extension rod; 18. Guide slide rod; 19. Limiter; 20. Arc groove; 21. Arc-shaped plate; 22. Positioning hole; 23. Scale line; 24. Arc-shaped rod; 25. Sliding seat; 26. Lifting rod; 27. Pressure ring; 28. Bottom liner; 29. Return spring; 30. Insert rod; 31. Training structure; 32. Guide frame; 33. Insert seat; 34. Fixed insert rod; 35. Guide groove; 36. Threaded rod; 37. Fixed knob; 38. Fixed block; 39. Positioning shaft rod; 40. Second strap.
[0036] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0039] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0040] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0041] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0042] like Figures 1 to 9 As shown, this embodiment of the invention provides an orthopedic nursing joint protection device, including a joint protection structure 1, a wearable positioning structure 2, an activity restriction structure 3, and a training structure 31; the wearable positioning structure 2 is disposed on the top of the joint protection structure 1; the activity restriction structure 3 is disposed on both sides of the joint protection structure 1; and the training structure 31 is disposed on the surface of the joint protection structure 1.
[0043] like Figures 1 to 5 As shown, the joint protection structure 1 includes a calf guard plate 4, with connecting shafts 5 fixedly installed on both sides of the upper end of the calf guard plate 4, and a thigh guard plate 6 rotatably installed on the connecting shafts 5.
[0044] A knee guard 7 is rotatably mounted on the connecting shaft 5. The knee guard 7 is located between the thigh guard 6 and the calf guard 4. An inner cushioning cotton 8 is fixedly installed inside the knee guard 7.
[0045] The calf guard plate 4 and the thigh guard plate 6 have symmetrical through holes 10 on both sides of their surfaces. An elastic band 11 is fixedly connected between two horizontally adjacent through holes 10. One end of the elastic band 11 is provided with a Velcro 12. A positioning plate 13 is slidably provided on the surface of the elastic band 11.
[0046] Rubber positioning blocks 14 are fixedly connected to the inner walls of the calf guard 4 and the thigh guard 6 respectively. A first strap 15 is fixedly connected inside the rubber positioning block 14 and is tied to the user's leg.
[0047] like Figures 1 to 7As shown, the activity restriction structure 3 includes a collar 16 fixedly connected to the surface of the connecting shaft 5, an extension rod 17 fixedly connected to the surface of the collar 16, and a guide slide rod 18 fixedly connected to the end of the extension rod 17 away from the collar 16.
[0048] A limiter 19 is rotatably connected to the surface of the connecting shaft 5. An arc plate 21 is fixedly connected to the inner wall of the limiter 19. Positioning holes 22 are evenly opened along the arc surface on the surface of the arc plate 21.
[0049] An arc-shaped rod 24 is fixedly connected to the inner wall of the limiter 19. A sliding seat 25 is slidably disposed on the surface of the arc-shaped rod 24. The sliding seat 25 is in close contact with the inner wall of the limiter 19. A scale line 23 is opened on the side wall of the limiter 19.
[0050] A lifting rod 26 is slidably arranged inside the sliding seat 25. A pressure ring 27 is fixedly connected to the top of the lifting rod 26. A bottom liner 28 is fixedly connected to the end of the lifting rod 26 away from the pressure ring 27. The bottom liner 28 is located at the bottom end of the arc plate 21. A plug rod 30 is fixedly connected to the top surface of the bottom liner 28. The plug rod 30 is inserted into the positioning hole 22. A return spring 29 is sleeved on the surface of the lifting rod 26. The two ends of the return spring 29 are fixedly connected to the sliding seat 25 and the bottom liner 28, respectively.
[0051] The guide rod 18 is slidably disposed on the inner wall of the arc-shaped groove 20.
[0052] like Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, a guide frame 32 is fixedly connected to the top of the surface of the thigh guard plate 6, and a plug seat 33 is fixedly connected to the bottom of the surface of the thigh guard plate 6. A fixed plug rod 34 is slidably arranged inside the guide frame 32. The bottom end of the fixed plug rod 34 is inserted into the inside of the plug seat 33. A guide groove 35 is opened on the surface of the fixed plug rod 34. A threaded rod 36 is slidably arranged inside the guide groove 35. A fixed knob 37 is threadedly connected to the surface of the threaded rod 36. A fixed block 38 is fixedly connected to the bottom of the calf guard plate 4. A positioning shaft 39 is fixedly connected inside the fixing block 38. A second strap 40 is fixedly connected to the surface of the positioning shaft 39. The end of the second strap 40 away from the positioning shaft 39 is fixedly connected to the surface of the threaded rod 36.
[0053] When using the device, first place the calf guard 4 and thigh guard 6 on the limb. At this time, the connecting shaft 5 is on both sides of the joint. After completion, they are tied to the limb by the first strap 15. After completion, pass one end of the elastic band 11 through the through hole 10 and fix it with Velcro 12. While the elastic band 11 is tied, the positioning plate 13 is always in the middle of the limb. In this way, the device can be worn.
[0054] When adjusting the activity restriction structure 3, pressing the pressure ring 27 causes the lifting rod 26 to descend. As the lifting rod 26 slides downward, it pushes the bottom plate 28 down. The descent of the bottom plate 28 causes the insertion rod 30 to pop out from the inside of the positioning hole 22. As the bottom plate 28 moves downward, the return spring 29 is stretched. At this time, the pressure ring 27 can be pushed to make the sliding seat 25 slide on the surface of the arc rod 24. After adjusting to the appropriate position, the pressure ring 27 is released. At this time, the return spring 29 returns to its original position and pulls the bottom plate 28 upward, so that the insertion rod 30 can be inserted into the inside of the positioning hole 22.
[0055] When the leg is bent, the calf guard plate 4 drives the connecting shaft 5 to rotate, and the connecting shaft 5 drives the collar 16 to rotate together. This allows the guide rod 18 to slide inside the arc groove 20. The arc groove 20 can only slide at a preset interaction angle. After sliding to the end, the leg can be stopped from bending. This allows the adjustment of the joint bending angle.
[0056] After the leg is fixed and adjusted by the joint protection structure 1, the wearing positioning structure 2 and the movement restriction structure 3, the pressure ring 27 can be pushed to make the lifting rod 26 drive the plug rod 30 to be pulled out from the inside of the positioning hole 22. At this time, the lower leg can be bent to make the lower leg guard plate 4 rotate on the surface of the connecting shaft 5. While the lower leg guard plate 4 is rotating, it pulls the second strap 40. At this time, the second strap 40 generates a reaction force on the lower leg guard plate 4, so that the lower leg applies a greater force to achieve the pulling, thereby achieving the purpose of lower leg training.
[0057] Simultaneously, by rotating the fixing knob 37, the threaded rod 36 is stopped from being confined inside the guide groove 35. At this time, the threaded rod 36 can be slid inside the guide groove 35. Sliding the threaded rod 36 upward inside the guide groove 35 will tighten the second strap 40, and conversely, sliding it downward will loosen the second strap 40. After adjustment, the fixing knob 37 can be rotated to lock the threaded rod 36 inside the guide groove 35.
[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one, etc." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0059] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0060] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. An orthopedic joint protection device, characterized in that, include: A joint protection structure, wherein the top of the joint protection structure is provided with a wearable positioning structure, the two sides of the joint protection structure are respectively provided with movement restriction structures, and the surface of the joint protection structure and the surface of the wearable positioning structure are provided with training structures; The joint protection structure is used to protect the knee joint and position the lower leg, the wearable positioning structure is used to position the thigh, the movement restriction structure is used to limit the joint flexion angle, and the training structure is used to apply a reaction force to the lower leg when it is flexed. The joint protection structure includes a calf guard plate, and connecting shafts are fixedly installed on both sides of the upper end of the calf guard plate, and a thigh guard plate is rotatably installed on the connecting shafts; The activity restriction structure includes a collar fixedly connected to the surface of the connecting shaft, an extension rod fixedly connected to the surface of the collar, and a guide slide rod fixedly connected to the end of the extension rod away from the collar. A limiter is rotatably connected to the surface of the connecting shaft. An arc-shaped groove is formed through the surface of the limiter. An arc-shaped plate is fixedly connected to the inner wall of the limiter. Positioning holes are uniformly formed along the arc surface on the surface of the arc plate. An arc-shaped rod is fixedly connected to the inner wall of the limiter, and a sliding seat is slidably disposed on the surface of the arc-shaped rod. The sliding seat is in close contact with the inner wall of the limiter, and scale lines are opened on the side wall of the limiter. A lifting rod is slidably arranged inside the sliding seat. A pressure ring is fixedly connected to the top end of the lifting rod. A bottom liner is fixedly connected to the end of the lifting rod away from the pressure ring. The bottom liner is located at the bottom end of the arc-shaped plate. A plug-in rod is fixedly connected to the top surface of the bottom liner. The plug-in rod is inserted into the inner wall of the positioning hole. A return spring is sleeved on the surface of the lifting rod. The two ends of the return spring are fixedly connected to the sliding seat and the bottom liner, respectively. The guide slide rod is slidably disposed on the inner wall of the arc-shaped groove.
2. The orthopedic joint protection device according to claim 1, characterized in that, A knee guard is rotatably mounted on the connecting shaft. The knee guard is located between the thigh guard and the calf guard. An inner cushioning cotton is fixedly installed inside the knee guard.
3. The orthopedic joint protection device according to claim 2, characterized in that, Symmetrical through holes are provided on both sides of the calf guard and the thigh guard. An elastic band is fixedly connected between two horizontally adjacent through holes. One end of the elastic band is provided with Velcro. A positioning plate is slidably arranged between the surfaces of the elastic band.
4. The orthopedic joint protection device according to claim 3, characterized in that, Rubber positioning blocks are fixedly connected to the inner walls of the calf guard and the thigh guard, respectively. A first strap is fixedly connected inside the rubber positioning block and is tied to the user's leg.
5. The orthopedic joint protection device according to claim 1, characterized in that, A guide frame is fixedly connected to the top of the thigh guard surface, and a plug-in seat is fixedly connected to the bottom of the thigh guard surface. A fixed plug rod is slidably arranged inside the guide frame, and the bottom end of the fixed plug rod is inserted into the plug-in seat. A guide groove is formed on the surface of the fixed plug rod, and a threaded rod is slidably arranged inside the guide groove. A fixed knob is threadedly connected to the surface of the threaded rod. A fixing block is fixedly connected to the bottom of the calf guard, and a positioning shaft is fixedly connected inside the fixing block. A second strap is fixedly connected to the surface of the positioning shaft, and the end of the second strap away from the positioning shaft is fixedly connected to the surface of the threaded rod.
Citation Information
Patent Citations
The fixed spacing protection casing in orthopedics nursing joint
CN204501145U
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CN114795623A
Joint protection device for rheumatism department nursing
CN117442418A