A postoperative joint rehabilitation training device
By incorporating a swing extension and a limiting tube into the rehabilitation training device, precise control of the swing amplitude is achieved, solving the problem of secondary injury caused by excessive swing in existing devices and improving the safety and effectiveness of rehabilitation training.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE 947TH ARMY HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing postoperative joint rehabilitation training devices lack effective swing amplitude limiting mechanisms, which may cause patients with more severe joint damage to exceed their physiological tolerance range during exercise, resulting in violent swinging and increasing the risk of secondary injury.
A postoperative joint rehabilitation training device was designed. By setting a swing extension and a limiting tube on the swing chamber, combined with an adjustment unit and a limiting unit, the device can achieve precise control of the swing amplitude and resistance adjustment, thus avoiding excessive swing.
It effectively avoids secondary joint damage caused by excessive swinging, improves the safety and effectiveness of rehabilitation training, and ensures that exercise is carried out within a safe range of activity.
Smart Images
Figure CN224540906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rehabilitation training device technology, specifically a postoperative joint rehabilitation training device. Background Technology
[0002] Postoperative joint rehabilitation training is a core component in promoting postoperative functional recovery. It should follow the scientific principle of "phased progression and multi-dimensional intervention." In the acute phase (0-2 weeks postoperatively), protective measures are the main focus. After entering the subacute phase (2-6 weeks), active assisted exercises (such as pulley-assisted flexion and extension), short-arc joint movements, and static cycling training are gradually introduced to break the cycle of joint stiffness. In the reinforcement phase (6 weeks-3 months), the focus is on functional reconstruction, using resistance training (elastic bands / sandbags), balance and coordination training (standing on one leg), and simulated daily movements (climbing stairs). In the consolidation phase (after 3 months), the focus is on returning to daily life and sports abilities.
[0003] In current postoperative joint rehabilitation training practices, the rehabilitation training devices generally use a swing arm as the core functional component to achieve rehabilitation goals. However, existing technical solutions have significant drawbacks: these devices do not have an effective swing amplitude limiting mechanism. For patients with severe joint injuries, when the allowed swing amplitude exceeds the safe range of motion of their joints, the inertia of limb movement may cause violent swinging of the affected limb beyond its physiological tolerance. This uncontrolled movement pattern poses a risk of secondary joint injury. Therefore, there is an urgent need to develop an innovative postoperative joint rehabilitation training device with precise movement amplitude limiting function. By establishing a scientific movement boundary control mechanism, the risk of iatrogenic injury caused by excessive swinging can be effectively avoided, thereby improving the safety and effectiveness of rehabilitation training. Utility Model Content
[0004] The purpose of this invention is to address the problem that current postoperative joint rehabilitation training devices generally use a swing arm as the core functional component to achieve rehabilitation goals. However, existing solutions have significant drawbacks: such devices do not have an effective swing amplitude limiting mechanism. For patients with severe joint injuries, when the allowed swing amplitude exceeds the safe range of motion of their joints, the inertia of limb movement may cause violent swinging of the affected limb beyond its physiological tolerance. This invention provides a rehabilitation training device.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: A postoperative joint rehabilitation training device includes: a placement chamber, a swing chamber disposed above the placement chamber, two through slots formed on the surface of the placement chamber, and two swing extensions disposed on the surface of the swing chamber, the surfaces of the two swing extensions being slidably inserted into the inner walls of the two through slots and one end of each being rotatably mounted on the inner wall of the placement chamber. A limiting tube is provided on one side of each of the two swing extensions, and an adjustment unit and a limiting unit are also included. The adjustment unit is used to limit the two limiting tubes to one side of the two swing extensions respectively and to control the position of the two limiting tubes along the length of the two swing extensions respectively. The limiting unit is used to adjust the rotational resistance of the two swing extensions.
[0006] Furthermore, the placement compartment includes a main compartment body, on the top of which two mounting pieces are fixedly installed. Each of the two mounting pieces has two slots on its surface. The compartment also includes two first elastic bands, the surfaces of which are slidably inserted into the inner walls of the slots. The compartment also includes a connecting unit, which is used to connect the two ends of the two first elastic bands respectively and adjust their connection positions.
[0007] Furthermore, the connecting unit includes two fixing rings respectively fixedly installed at one end of the two first elastic bands, and the other ends of the two first elastic bands are respectively slidably inserted into the inner walls of the two fixing rings. The surfaces of the two first elastic bands are fixedly installed with hook and loop fasteners and hook and loop fasteners.
[0008] Furthermore, the swing chamber includes a sub-chamber body, with two swing extensions respectively disposed on both sides of the sub-chamber body. A sliding chamber is slidably inserted into the interior of the sub-chamber body. Two second elastic bands are fixedly installed on the inner wall of the sliding chamber. The chamber also includes a limiting unit, which is used to limit the position of the sliding chamber on the inner wall of the swing chamber.
[0009] Furthermore, the limiting unit includes two limiting grooves respectively opened on both sides of the inner wall of the sub-compartment, and limiting rods are fixedly installed on both sides of the sliding compartment. The surfaces of the two limiting rods are slidably inserted into the inner walls of the two limiting grooves, and each surface is threaded with an abutment nut.
[0010] Furthermore, the adjustment unit includes two adjustment slots respectively opened on the surfaces of the two swing extensions, and T-shaped rods are slidably inserted into the inner walls of the two adjustment slots, and the two limiting tubes are respectively threaded onto the surfaces of the two T-shaped rods.
[0011] Furthermore, rotating protrusions are fixedly installed on the surfaces of both swing extensions, and two fixing blocks are fixedly installed on the inner wall of the main compartment. The surfaces of the two rotating protrusions are respectively rotatably inserted into the surfaces of the two fixing blocks.
[0012] Furthermore, the limiting unit includes a double-headed electric push rod fixedly installed on the inner wall of the main compartment. Both ends of the double-headed electric push rod are fixedly installed with abutment blocks. The surfaces of the two abutment blocks are slidably inserted into the surfaces of the two rotating protrusions. The double-headed electric push rod is electrically connected to a controller fixedly installed on the surface of the main compartment.
[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, a swing chamber is set above the placement chamber, and two swing extensions, both set on the surface of the swing chamber, are rotatably inserted into the inner walls of two through slots. When in use, the user can hold the swing chamber and swing his arm to achieve rehabilitation training for the arm joint. Before this, the user can adjust the position of the two limiting tubes along the length of the two swing extensions by adjusting the unit to limit the maximum swing amplitude of the swing chamber, thus avoiding the situation where the swing amplitude allowed by the swing chamber exceeds the safe range of motion of the user's joint.
[0014] 2. In this utility model, the swing chamber is divided into a secondary chamber and a sliding chamber that is slidably inserted into the inner wall of the secondary chamber. When using it, the user needs to first adjust the position of the sliding chamber on the inner wall of the secondary chamber, and then restrict the position of the sliding chamber on the inner wall of the secondary chamber by the limiting unit. Then, the user can place their arm inside the secondary chamber and the sliding chamber and hold the two second elastic bands that are fixedly installed on the inner wall of the sliding chamber. This setting can ensure that the secondary chamber will be stably and synchronously driven when the user swings their arm to drive the secondary chamber to rotate, thus ensuring the training effect. At the same time, during the swing of the secondary chamber, the limiting unit will apply resistance to the two swing extensions to prevent the user from swinging their arm too fast due to the lack of resistance, which could lead to arm injury. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial schematic diagram of a partial cross-sectional view of the present invention; Figure 3 This is another partial schematic diagram of a partial cross-sectional view of the present invention from another angle; Figure 4 This is a three-dimensional structural diagram of the present invention from another angle.
[0016] In the diagram: 1. Placement compartment; 11. Main compartment body; 12. Mounting piece; 13. Groove; 14. First elastic band; 15. Connecting unit; 151. Fixing ring; 152. Velcro rough surface; 153. Velcro barbed surface; 2. Swinging compartment; 21. Secondary compartment body; 22. Sliding compartment; 23. Second elastic band; 24. Limiting unit; 241. Limiting groove; 242. Limiting rod; 243. Abutting nut; 3. Through groove; 4. Swinging extension; 5. Limiting tube; 6. Adjusting unit; 61. Adjusting groove; 62. T-shaped rod; 7. Limiting unit; 71. Double-headed electric push rod; 72. Abutting block; 73. Controller; 8. Rotating protrusion; 9. Fixing block. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0018] This embodiment provides a postoperative joint rehabilitation training device, primarily addressing the current practice where rehabilitation training devices generally use a swing arm as the core functional component to achieve rehabilitation goals. However, existing solutions have significant drawbacks: these devices lack an effective swing amplitude limiting mechanism. For patients with severe joint injuries, when the allowed swing amplitude exceeds the safe range of motion of their joints, the inertia of limb movement may cause violent swinging of the affected limb beyond its physiological tolerance. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-4 Please provide a detailed explanation: A postoperative joint rehabilitation training device includes: a placement chamber 1 with a swing chamber 2 at its top; two swing extensions 4 on the surface of the swing chamber 2; and two through slots 3 on the surface of the placement chamber 1. Since one end of each swing extension 4 is rotatably mounted on the inner wall of the placement chamber 1, when in use, the user places their arm on the surface of the swing chamber 2, causing the two swing extensions 4 to slide along the inner walls of the two through slots 3, thereby exercising the arm joint. Before use, the user can install a limiting tube 5 on one side of each of the two swing extensions 4 using an adjustment unit 6 and adjust the position of the limiting tube 5, thus allowing the swing of the two swing extensions 4 to... During the process, the two limiting tubes 5 will abut against the surface of the placement chamber 1, thereby adjusting the maximum swing amplitude of the two swing extensions 4. Simultaneously, as the two swing extensions 4 rotate, the limiting unit 7 will adjust the rotational resistance of the two swing extensions 4, thereby enhancing the user's arm joint exercise intensity. The main components of the placement chamber 1 are: a main chamber body 11 with two mounting plates 12 fixedly mounted on the top, and slots 13 formed on the surface of each mounting plate 12; and two first elastic bands 14. In use, the user first places their arm on the surface of the main chamber body 11, and then slides one end of each of the two first elastic bands 14 into one of the two slots 13. The inner wall is then inserted into the inner walls of two more slots 13. Finally, the two ends of the two first elastic bands 14 are connected by the connecting unit 15 and the connection position is adjusted so that the two first elastic bands 14 are both attached to the user's arm, achieving a stable limit on the user's arm. The main components of the swing chamber 2 are: a secondary chamber 21 (two swing extensions 4 are respectively set on both sides of the secondary chamber 21), and a sliding chamber 22 (two second elastic bands 23 are fixedly installed on the inner wall of the sliding chamber 22) is slidably inserted into the secondary chamber 21. In use, the user needs to limit the position of the sliding chamber 22 on the inner wall of the swing chamber 2 by the limiting unit 24, and then insert the wrist into the sliding chamber 2. The inner wall of compartment 22 allows the user's arm to be securely restrained inside the sub-compartment 21 by holding one of the elastic bands. The main components of the adjustment unit 6 are two T-shaped rods 62, and adjustment grooves 61 are provided on the surfaces of the two swing extensions 4. The surfaces of the two T-shaped rods 62 are slidably inserted into the inner walls of the two adjustment grooves 61. In use, the user first adjusts the position of the two T-shaped rods 62 on the inner walls of the two adjustment grooves 61, and then threaded the limiting tubes 5 onto the surfaces of the two T-shaped rods 62, so that one end of the two limiting tubes 5 abuts against the surfaces of the two swing extensions 4, thereby limiting and adjusting the position of the two limiting tubes 5 on one side of the two swing extensions 4.
[0019] By setting a swing chamber 2 above the placement chamber 1, and having two swing extensions 4, both set on the surface of the swing chamber 2, rotatably inserted into the inner walls of the two through slots 3, the user can swing their arm by holding the swing chamber 2 during use, thus achieving rehabilitation training for the arm joint. Before this, the user can adjust the position of the two limiting tubes 5 along the length of the two swing extensions 4 by adjusting the unit 6, thereby limiting the maximum swing amplitude of the swing chamber 2 and preventing the swing amplitude allowed by the swing chamber 2 from exceeding the safe range of motion of the user's joint.
[0020] like Figure 2 As shown, in some embodiments, the main components of the connecting unit 15 are: two fixing rings 151 respectively fixedly installed at one end of the two first elastic bands 14. In use, the user slides the other ends of the two first elastic bands 14 into the inner walls of the two fixing rings 151, causing the hook and loop fasteners 152 respectively fixedly installed on the surfaces of the two first elastic bands 14 to adhere to the hook and loop fasteners 153 respectively fixedly installed on the surfaces of the two first elastic bands 14, thus achieving connection between the two ends of the two first elastic bands 14 and... The adjustment of the connection position, in which the main components of the limiting unit 24 are: two limiting rods 242 respectively fixedly installed on both sides of the sliding chamber 22, and the two limiting rods 242 respectively slidably inserted into the inner walls of the two limiting grooves 241 respectively opened on both sides of the inner wall of the sub-chamber 21. In use, the user rotates the two abutting nuts 243 respectively threaded on the surface of the two limiting rods 242, so that the surfaces of the two abutting nuts 243 abut against both sides of the sub-chamber 21, thereby achieving stable limiting of the sliding chamber 22 on the inner wall of the sub-chamber 21.
[0021] like Figure 2 and Figure 3 As shown, in some embodiments, the two swing extensions 4 are rotatably mounted on the inner wall of the main compartment 11 as follows: two rotating protrusions 8 are respectively fixedly mounted on the surfaces of the two swing extensions 4, and two fixing blocks 9 are fixedly mounted on the inner wall of the main compartment 11. The surfaces of the two rotating protrusions 8 are respectively rotatably inserted into the surfaces of the two fixing blocks 9. During the rotation of the two swing extensions 4, the two rotating protrusions 8 will be rotated synchronously. The main components of the limiting unit 7 are: a double-headed electric push rod 71 fixedly mounted on the inner wall of the main compartment 11. In use, the user controls the extension and retraction of the two ends of the double-headed electric push rod 71 through the controller 73 fixedly mounted on the surface of the main compartment 11, which can drive the two abutting blocks 72 respectively fixedly mounted on the double-headed electric push rod 71 to abut against the inner walls of the two rotating protrusions 8, thereby applying rotational resistance to the two swing extensions 4.
[0022] By splitting the swing chamber 2 into a secondary chamber 21 and a sliding chamber 22 that is slidably inserted into the inner wall of the secondary chamber 21, the user needs to first adjust the position of the sliding chamber 22 on the inner wall of the secondary chamber 21, and then restrict the position of the sliding chamber 22 on the inner wall of the secondary chamber 21 by the limiting unit 24. The user can then place their arm inside the secondary chamber 21 and the sliding chamber 22 and hold the two second elastic bands 23 that are fixedly installed on the inner wall of the sliding chamber 22. This setting ensures that the secondary chamber 21 is stably and synchronously driven when the user swings their arm to drive the secondary chamber 21 to rotate, thus ensuring the training effect. At the same time, during the swing of the secondary chamber 21, the limiting unit 7 will apply resistance to the two swing extensions 4 to prevent the user from swinging their arm too fast due to the lack of resistance, which could lead to arm injury.
[0023] The working process of this utility model is as follows: First, the user needs to place their arm on the surface of the main chamber 11, attach the hook and loop sides 152 of the two first elastic bands 14 to the surfaces of the two hook and loop sides 153 respectively, so that the two first elastic bands 14 are tightly attached to the surface of the arm, and finally grasp the two second elastic bands 23 to limit the arm's position on the inner wall of the swing chamber 2. Secondly, the user can pull the two T-shaped rods 62 to the position of the inner wall of the two adjustment slots 61 in advance, and then thread the surfaces of the two limiting tubes 5 onto the surfaces of the two T-shaped rods 62 respectively, so that one end of the two limiting tubes 5 abuts against the surfaces of the two swing extensions 4 respectively, thereby realizing the adjustment of the maximum swing amplitude of the two swing extensions 4.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A postoperative joint rehabilitation training device, characterized in that, include: Placement compartment (1), with a swing compartment (2) above the placement compartment (1). The surface of the placement compartment (1) has two through slots (3), and the surface of the swing compartment (2) has two swing extensions (4). The surfaces of the two swing extensions (4) are slidably inserted into the inner walls of the two through slots (3), and one end of each extension is rotatably installed on the inner wall of the placement compartment (1). A limiting tube (5) is provided on one side of each of the two swing extensions (4), and an adjustment unit (6) and a limiting unit (7) are also provided. The adjustment unit (6) is used to limit the two limiting tubes (5) to one side of the two swing extensions (4) respectively and control the position of the two limiting tubes (5) along the length of the two swing extensions (4) respectively. The limiting unit (7) is used to adjust the rotational resistance of the two swing extensions (4).
2. The postoperative joint rehabilitation training device according to claim 1, characterized in that: The placement compartment (1) includes a main compartment body (11), on which two mounting pieces (12) are fixedly installed. Each of the two mounting pieces (12) has two slots (13) on its surface. It also includes two first elastic bands (14), the surfaces of which are slidably inserted into the inner walls of several slots (13). It also includes a connecting unit (15), which is used to connect the two ends of the two first elastic bands (14) respectively and adjust the connection position.
3. The postoperative joint rehabilitation training device according to claim 2, characterized in that: The connecting unit (15) includes two fixing rings (151) that are fixedly installed at one end of the two first elastic bands (14), and the other ends of the two first elastic bands (14) are slidably inserted into the inner walls of the two fixing rings (151). The surfaces of the two first elastic bands (14) are fixedly installed with hook and loop fasteners (152) and hook and loop fasteners (153).
4. The postoperative joint rehabilitation training device according to claim 1, characterized in that: The swing chamber (2) includes a sub-chamber body (21), and two swing extensions (4) are respectively disposed on both sides of the sub-chamber body (21). A sliding chamber (22) is slidably inserted into the interior of the sub-chamber body (21). Two second elastic bands (23) are fixedly installed on the inner wall of the sliding chamber (22). It also includes a limiting unit (24), which is used to limit the position of the sliding chamber (22) on the inner wall of the swing chamber (2).
5. The postoperative joint rehabilitation training device according to claim 4, characterized in that: The limiting unit (24) includes two limiting grooves (241) respectively opened on both sides of the inner wall of the sub-compartment (21). Limiting rods (242) are fixedly installed on both sides of the sliding compartment (22). The surfaces of the two limiting rods (242) are slidably inserted into the inner walls of the two limiting grooves (241) and the surfaces are threaded with abutting nuts (243).
6. The postoperative joint rehabilitation training device according to claim 1, characterized in that: The adjustment unit (6) includes two adjustment slots (61) respectively opened on the surfaces of the two swing extensions (4). T-shaped rods (62) are slidably inserted into the inner walls of the two adjustment slots (61). The two limiting tubes (5) are respectively threaded onto the surfaces of the two T-shaped rods (62).
7. The postoperative joint rehabilitation training device according to claim 2, characterized in that: Rotating protrusions (8) are fixedly installed on the surfaces of the two swing extensions (4), and two fixing blocks (9) are fixedly installed on the inner wall of the main compartment (11). The surfaces of the two rotating protrusions (8) are respectively rotatably inserted into the surfaces of the two fixing blocks (9).
8. The postoperative joint rehabilitation training device according to claim 7, characterized in that: The limiting unit (7) includes a double-headed electric push rod (71) fixedly installed on the inner wall of the main compartment (11). Both ends of the double-headed electric push rod (71) are fixedly installed with abutment blocks (72). The surfaces of the two abutment blocks (72) are slidably inserted into the surfaces of the two rotating protrusions (8). The double-headed electric push rod (71) is electrically connected to a controller (73) fixedly installed on the surface of the main compartment (11).