Orthopedic joint rehabilitation training device

Abstract

The utility model discloses an orthopedic joint rehabilitation training device, which is applied to the technical field of medical instruments and can effectively improve the movement range of elbow joints, enhance the coordination of elbow and forearm muscles and promote blood circulation around the joints through controllable bending and unbending actions. Joint stiffness and soft tissue adhesion can be prevented through regular movement, and meanwhile the hand grabbing capacity is enhanced in combination with the holding action; due to the design of adjustable holding distance, arm lengths of different patients can be accurately adapted, and it is ensured that a hand holding point is aligned with the axis of a shoulder and wrist joint during elbow joint flexion and extension training; muscle strength levels of different rehabilitation stages of a patient cannot be matched due to fixed training intensity, so that joint injury is caused by overlarge early load or muscle activation is delayed due to insufficient later load.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and specifically relates to an orthopedic joint rehabilitation training device. Background Technology

[0002] Rehabilitation training refers to physical activities that promote recovery or improvement of function after an injury. Except for severe injuries that require rest and treatment, general injuries do not necessarily require a complete cessation of physical exercise. Appropriate and scientific physical exercise plays a positive role in the rapid healing of injuries and the promotion of functional recovery. The elbow joint, composed of the humeral-ulnar joint, humeral-radial joint, and proximal radioulnar joint, is an important structure for the normal functioning of the upper limb. The main modes of movement of the elbow joint are flexion, extension, and pronation and supination movements combined with forearm movements. Orthopedic joint rehabilitation training devices are a type of device for elbow joint rehabilitation training.

[0003] However, during recovery, patients cannot stimulate neuromuscular linkage through synchronized gripping and flexion-extension movements, resulting in insufficient involvement of the forearm muscle groups, weakening the overall coordination training effect of the upper limb, delaying the synergistic recovery of elbow function, increasing the risk of joint stiffness, and requiring additional training for daily gripping ability, which can easily prolong the rehabilitation period. Furthermore, the fixed grip width may not be able to adapt to the differences in patients' arm lengths, leading to misalignment of the hand, shoulder, and wrist joint axes during elbow flexion and extension, causing uneven joint stress distribution or compensatory force exertion. The fixed training intensity may not be able to match the muscle strength levels of patients at different rehabilitation stages, resulting in excessive load in the early stage causing joint damage or insufficient load in the later stage delaying muscle activation. At the same time, the static resistance design is difficult to adapt to the biomechanical requirements when the elbow flexion and extension angle changes, which can easily cause uneven joint pressure distribution or compensatory movements, reducing the accuracy of rehabilitation. In order to solve the problems mentioned above, we propose an orthopedic joint rehabilitation training device. Summary of the Invention

[0004] The purpose of this invention is to provide an orthopedic joint rehabilitation training device, which has the advantages of improving the range of motion of the elbow joint, adjustable length, and adjustable stretching force.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an orthopedic joint rehabilitation training device, including a front plate, a bracket is bolted to the front end and rear end of the top middle of the front plate, a rotating rod is rotatably sleeved inside the bracket, a rocker arm A is fixedly sleeved at one end of the two rotating rod surfaces, a gear is fixedly sleeved at the rear end of the rotating rod surface, a rack meshes with the bottom of the gear, a connecting plate is bolted to the right side of the rack, a back plate is bolted to the back of the front plate, an adjustment mechanism is provided at the front end and rear end of the inner wall of the rocker arm A, and a counterweight mechanism is provided at the rear end of the right side of the connecting plate.

[0006] Using the above technical solution: Grasp the handle and rotate it to the right. The handle rotates in a circle, which in turn moves the fixed ring. The fixed ring moves the rocker arm B, which in turn moves the rocker arm A. Rocker arm A rotates the rotating rod, which in turn rotates the gear at the rear end. The gear moves the rack, which in turn moves the connecting plate, which in turn moves the counterweight mechanism. This controllable bending and straightening motion effectively improves the range of motion of the elbow joint, enhances the coordination of the elbow and forearm muscles, and promotes blood circulation around the joint. Its regular movement can prevent joint stiffness and soft tissue adhesions. At the same time, combined with the gripping motion, it strengthens the hand's grasping ability, helping patients improve their daily self-management ability while restoring joint function, thus forming a holistic rehabilitation effect.

[0007] The present invention is further configured such that the adjustment mechanism includes a slot, the slot is located at the front end and the rear end of the inner wall of the rocker arm A, a buckle is engaged inside the rightmost slot, an elastic element is bolted to the end of the buckle away from the slot, and a rocker arm B is bolted to the end of the elastic element away from the buckle, and the surface of the rocker arm B penetrates the left side of the interior of the rocker arm A, and a gripping mechanism is provided on the left side of the opposite side of the two rocker arms B.

[0008] The above technical solution employs an adjustment mechanism. When the grip bar is stretched left and right, the grip bar rotates, which in turn moves a fixed ring. The fixed ring moves a rocker arm B, which in turn moves an elastic element. The elastic element then moves a latch, which moves along the path of the latch groove and the inner wall of rocker arm A at the front and rear ends. The elastic element bends, causing the latch to disengage from the latch groove. When adjusted to a suitable grip length, the latch engages with the corresponding latch groove, and the elastic element straightens. This adjustable grip distance design precisely adapts to the arm lengths of different patients, ensuring that the hand grip point is aligned with the shoulder and wrist joint axis during elbow flexion and extension training. This avoids force compensation or abnormal joint wear due to grip distance deviation, enhances the synergistic contraction effect of the elbow muscles, improves grip stability and training comfort, and helps to simultaneously restore joint mobility and coordination of daily functional movements.

[0009] The present invention is further configured such that the counterweight mechanism includes a counterweight block, the counterweight block is bolted to the rear end of the right side of the connecting plate, a plug is welded to the right side of the counterweight block, and the plug of the left counterweight block passes through the interior of the right counterweight block. A socket is provided at the top of the plug, and a pin is slidably sleeved through the top of the counterweight block and the top of the interior, and the bottom of the right plug is engaged with the socket on the left side.

[0010] The above technical solution employs a counterweight mechanism. When the counterweight needs to be reduced, the pin on the rightmost counterweight is pulled out, disengaging it from the socket of the adjacent counterweight on the left side of the right counterweight. The rightmost counterweight can then be removed, reducing the counterweight. When the counterweight needs to be increased, the inside of the new counterweight is inserted, connecting to the plug on the last counterweight. When the pin contacts the rightmost side of the plug, it slides upwards and then engages in the socket, completing the increase in counterweight. The adjustable counterweight module precisely controls the stretching force, allowing patients to dynamically adjust the load intensity during elbow flexion and extension training according to the rehabilitation stage. This phased, progressive training avoids secondary injuries caused by excessive initial loads and gradually increases resistance to stimulate muscle strength recovery, strengthen joint stability and neuromuscular coordination, promote the synchronous recovery of elbow joint function and the upper limb kinetic chain, and shorten the overall rehabilitation cycle.

[0011] The present invention is further configured such that the gripping mechanism includes a fixing ring, which is bolted to the left side of the opposite side of the two rocker arms B, and a rotating ring is rotatably sleeved inside the fixing ring.

[0012] The above technical solution allows patients to perform gripping and internal / external rotation exercises by setting up a gripping mechanism.

[0013] The present invention is further configured such that a slider A is bolted to the bottom of the rack, and a groove A is provided at the front end of the top of the back plate, and the interior of the groove A is slidably connected to the surface of the slider A.

[0014] The above technical solution is adopted: by setting slider A and groove A, the movement of the rack can be limited.

[0015] The present invention is further configured such that a slider B is bolted to the right side of the bottom of the rocker arm B, and a groove B is provided at the bottom of the interior of the rocker arm A, and the interior of the groove B is slidably connected to the surface of the slider B.

[0016] The above technical solution is adopted: by setting slider B and groove B, the movement of rocker arm B can be limited.

[0017] The present invention is further configured such that a slider C is bolted to the bottom of the counterweight, and a groove C is provided at the rear end of the top of the back plate, and the interior of the groove C is slidably connected to the surface of the slider C.

[0018] By adopting the above technical solution, the movement of the counterweight can be limited by setting slider C and groove C.

[0019] The present invention is further configured such that grips are bolted to both sides of the inner wall of the rotating ring.

[0020] The above technical solution incorporates a grip bar for easy handling.

[0021] The present invention is further configured such that a limiting block is bolted to the left side of the top of the front plate.

[0022] The above technical solution is adopted: by setting a limit block, the rotation of rocker arm A can be limited.

[0023] The present invention is further provided that a height-increasing pad is adhered to the right side of the top of the front panel.

[0024] The above technical solution, by setting up a height-increasing pad, allows patients to practice arm placement, facilitating rehabilitation training.

[0025] In summary, this utility model has the following beneficial effects:

[0026] 1. This utility model can effectively improve the range of motion of the elbow joint, enhance the coordination of the elbow and forearm muscles, and promote blood circulation around the joint through controllable bending and straightening movements. Its regular movement can prevent joint stiffness and soft tissue adhesion. At the same time, combined with gripping movements, it strengthens the hand's grasping ability, helping patients to improve their daily self-operation ability while restoring joint function, thus forming a holistic rehabilitation effect.

[0027] 2. This utility model, through its adjustable grip distance design, can accurately adapt to the arm length of different patients, ensuring that the hand grip point is aligned with the shoulder and wrist joint axis during elbow flexion and extension training. This avoids force compensation or abnormal joint wear caused by grip distance deviation, enhances the synergistic contraction effect of elbow muscles, and improves grip stability and training comfort, which helps to simultaneously restore joint mobility and coordination of daily functional movements.

[0028] 3. This utility model may fail to match the muscle strength level of patients at different rehabilitation stages due to fixed training intensity, resulting in excessive load in the early stage causing joint damage or insufficient load in the later stage delaying muscle activation. At the same time, the static resistance design is difficult to adapt to the biomechanical needs when the elbow joint flexion and extension angle changes, which can easily cause uneven joint pressure distribution or compensatory movements, reducing the accuracy of rehabilitation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a top sectional view of the overall structure of this utility model;

[0031] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the structure at point A;

[0032] Figure 4This is a rear sectional view of the overall structure of this utility model;

[0033] Figure 5 This is a utility model Figure 4 Enlarged schematic diagram of the structure at point B;

[0034] Figure 6 This is a partial rear sectional view of the structure of this utility model;

[0035] Figure 7 This is a partial structural front sectional view of this utility model.

[0036] Reference numerals: 1. Front plate; 2. Back plate; 3. Bracket; 4. Rotating rod; 5. Rocker arm A; 6. Rocker arm B; 7. Gear; 8. Rack; 9. Connecting plate; 10. Slot; 11. Buckle; 12. Elastic element; 13. Counterweight; 14. Plug; 15. Socket; 16. Pin; 17. Fixing ring; 18. Rotating ring; 19. Slider A; 20. Slide A; 21. Slider B; 22. Slide B; 23. Slider C; 24. Slide C; 25. Grip bar; 26. Limiting block; 27. Heightening pad. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Example 1:

[0039] refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 An orthopedic joint rehabilitation training device includes a front plate 1. A bracket 3 is bolted to the front and rear ends of the top center of the front plate 1. Rotating rods 4 are rotatably sleeved inside the bracket 3. Rocker arms A5 are fixedly sleeved at adjacent ends of the surfaces of the two rotating rods 4. A gear 7 is fixedly sleeved at the rear end of the rear rotating rod 4. A rack 8 meshes with the bottom of the gear 7. A connecting plate 9 is bolted to the right side of the rack 8. A back plate 2 is bolted to the back of the front plate 1. Adjustment mechanisms are provided at the front and rear ends of the inner wall of the rocker arms A5. A counterweight mechanism is provided at the rear end of the right side of the connecting plate 9. When the handle 25 is gripped and flipped to the right, the handle 25 drives the rotating ring 18 to move, the rotating ring 18 drives the fixed ring 17 to move, the fixed ring 17 drives the rocker arm B6 to move, the rocker arm B6 drives the rocker arm A5 to move, the rocker arm A5 drives the rotating rod 4 to rotate, the rotating rod 4 at the rear end drives the gear 7 to rotate, the gear 7 drives the rack 8 to move, the rack 8 drives the connecting plate 9 to move, and the connecting plate 9 drives the counterweight mechanism to move, resulting in controllable bending and straightening actions.

[0040] refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 The gripping mechanism includes a fixed ring 17, which is bolted to the left side of the two rocker arms B6 facing each other. The fixed ring 17 has a rotating ring 18 inside it. By setting up the gripping mechanism, the patient's hand that needs rehabilitation training can grip and perform internal and external rotation training.

[0041] refer to Figure 6 A slider A19 is bolted to the bottom of the rack 8, and a groove A20 is provided at the front end of the top of the back plate 2. The inside of the groove A20 is slidably connected to the surface of the slider A19. By setting the slider A19 and the groove A20, the movement of the rack 8 can be limited.

[0042] refer to Figure 1 , Figure 2 The inner walls of the rotating ring 18 are fitted with handles 25 on both sides, which make it easy to hold.

[0043] refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 A limit block 26 is bolted to the left side of the top of the front plate 1. By setting the limit block 26, the rotation of the rocker arm A5 can be limited.

[0044] refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 A heightening pad 27 is attached to the right side of the top of the front panel 1. By setting the heightening pad 27, the patient can position their arm as needed for rehabilitation training, which is convenient for rehabilitation training.

[0045] Brief description of usage: The patient places the upper arm of the arm to be trained into the heightening pad 27, grasps the grip bar 25, and rotates it to the right. The grip bar 25 drives the rotating ring 18 to move, the rotating ring 18 drives the fixed ring 17 to move, the fixed ring 17 drives the rocker arm B6 to move, the rocker arm B6 drives the rocker arm A5 to move, the rocker arm A5 drives the rotating rod 4 to rotate, the rotating rod 4 at the rear drives the gear 7 to rotate, the gear 7 drives the rack 8 to move, the slider A19 and the groove A20 limit the movement of the rack 8, the rack 8 drives the connecting plate 9 to move, the connecting plate 9 drives the counterweight mechanism to move. The controllable bending and straightening movements can effectively improve the range of motion of the elbow joint, enhance the coordination of the elbow and forearm muscles, and promote blood circulation around the joint. Its regular movement can prevent joint stiffness and soft tissue adhesions. At the same time, combined with the gripping movements, it strengthens the hand's grasping ability, helping patients improve their daily self-operation ability while restoring joint function, forming a holistic rehabilitation effect.

[0046] Example 2:

[0047] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 An orthopedic joint rehabilitation training device includes an adjustment mechanism comprising a slot 10, which is located at the front and rear ends of the inner wall of a rocker arm A5. A buckle 11 is engaged inside the rightmost slot 10. An elastic element 12 is attached to the end of the buckle 11 furthest from the slot 10, and a rocker arm B6 is attached to the end of the elastic element 12 furthest from the buckle 11. The surface of the rocker arm B6 extends through the left side of the interior of the rocker arm A5. A gripping mechanism is provided on the left side of the opposite side of the two rocker arms B6. Gripping the grip bar 25 and extending it left and right causes the grip bar 25 to rotate 1 revolution. 8. Movement and rotation 18 drive the fixed ring 17 to move, the fixed ring 17 drives the rocker arm B6 to move, the rocker arm B6 drives the elastic element 12 to move, the elastic element 12 drives the buckle 11 to move, the buckle 11 moves along the path of the front and rear ends of the groove 10 and the inner wall of the rocker arm A5, the elastic element 12 bends so that the buckle 11 loses engagement with the groove 10, when adjusted to a suitable grip length, the buckle 11 engages with the corresponding groove 10, the elastic element 12 straightens, the adjustable grip distance design can accurately adapt to the arm length of different patients.

[0048] refer to Figure 7 A slider B21 is bolted to the right side of the bottom of the rocker arm B6. A groove B22 is provided at the bottom of the inside of the rocker arm A5, and the inside of the groove B22 is slidably connected to the surface of the slider B21. By setting the slider B21 and the groove B22, the movement of the rocker arm B6 can be limited.

[0049] Brief description of usage: Before training, the patient holds the grip bar 25 and stretches it approximately. The grip bar 25 moves the rotating ring 18, which in turn moves the fixed ring 17. The fixed ring 17 moves the rocker arm B6. The slider B21 and the groove B22 limit the movement of the rocker arm B6. The rocker arm B6 moves the elastic element 12, which in turn moves the latch 11. The latch 11 moves along the path of the front and rear ends of the groove 10 and the inner wall of the rocker arm A5. The elastic element 12 bends to make the latch 11 engage with the groove 10. When the latch is disengaged and adjusted to a suitable grip length, the latch 11 engages with the corresponding slot 10, and the elastic element 12 straightens. The adjustable grip distance design can precisely adapt to the arm length of different patients, ensuring that the hand grip point is aligned with the shoulder and wrist joint axis during elbow flexion and extension training. This avoids force compensation or abnormal joint wear caused by grip distance deviation, enhances the synergistic contraction effect of elbow muscles, and improves grip stability and training comfort. It also helps to simultaneously restore the coordination of joint mobility and daily functional movements.

[0050] Example 3:

[0051] refer to Figure 1 , Figure 2 , Figure 4 , Figure 5An orthopedic joint rehabilitation training device includes a counterweight mechanism comprising a counterweight block 13. The counterweight block 13 is bolted to the rear end of the right side of a connecting plate 9. A plug 14 is welded to the right side of the counterweight block 13, and the plug 14 on the left side of the counterweight block 13 passes through the interior of the right side counterweight block 13. A socket 15 is provided at the top of the plug 14. A pin 16 is slidably fitted through and onto the top and interior top of the counterweight block 13. The bottom of the right side plug 14 engages with the socket 15 on the left side. When it is necessary to reduce the weight of the counterweight block 13, the pin 16 on the rightmost counterweight block 13 is pulled out, and the pin 16 on the rightmost counterweight block 13 engages with the socket 15 on the left side. When the socket 15 of the adjacent counterweight block 13 on the left side of block 13 is disengaged, the rightmost counterweight block 13 can be removed to reduce the counterweight. When it is necessary to add counterweight, the inside of the new counterweight block 13 is inserted. The plug 14 of the last counterweight block 13 is being connected. When the pin 16 contacts the rightmost side of the plug 14, the pin 16 slides upward and then engages into the socket 15 of the plug 14, and the increase in counterweight is completed. The adjustable counterweight module can precisely control the stretching force, allowing patients to dynamically adjust the load intensity according to the rehabilitation stage during elbow flexion and extension training. The phased and progressive training can avoid secondary injury caused by excessive initial load.

[0052] refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 The bottom of the counterweight 13 is bolted with a slider C23, and the rear end of the top of the back plate 2 is provided with a groove C24, and the interior of the groove C24 is slidably connected to the surface of the slider C23. By setting the slider C23 and the groove C24, the movement of the counterweight 13 can be limited.

[0053] Brief description of usage: The patient adjusts the weight according to their own condition. When it is necessary to reduce the weight block 13, the pin 16 of the rightmost weight block 13 is pulled out. The pin 16 of the rightmost weight block 13 loses its engagement with the socket 15 of the adjacent weight block 13 on the left side of the right weight block 13. The rightmost weight block 13 is then pulled out. The slider C23 and the groove C24 limit the movement of the weight block 13, thus reducing the weight. When it is necessary to add weight, the inside of the new weight block 13 is inserted. The plug 14 of the last weight block 13 is being connected. When the pin 16 contacts the rightmost side of the plug 14, the pin 16 slides upward and then engages with the socket 15 of the plug 14, thus completing the addition of counterweight. The adjustable counterweight module precisely controls the stretching force, allowing patients to dynamically adjust the load intensity according to the rehabilitation stage during elbow flexion and extension training. The phased and progressive training can avoid secondary damage caused by excessive initial load, and can stimulate muscle strength recovery by gradually increasing resistance, strengthen joint stability and neuromuscular coordination, promote the synchronous recovery of elbow joint function and upper limb kinetic chain, and shorten the overall rehabilitation cycle.

[0054] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An orthopedic joint rehabilitation training device, comprising a front plate (1), characterized in that: A bracket (3) is bolted to the front and rear ends of the top middle of the front plate (1). A rotating rod (4) is rotatably sleeved inside the bracket (3). A rocker arm A (5) is fixedly sleeved at one end of the two rotating rods (4). A gear (7) is fixedly sleeved at the rear end of the rotating rod (4). A rack (8) meshes with the bottom of the gear (7). A connecting plate (9) is bolted to the right side of the rack (8). A back plate (2) is bolted to the back of the front plate (1). An adjustment mechanism is provided at the front and rear ends of the inner wall of the rocker arm A (5). A counterweight mechanism is provided at the rear end of the right side of the connecting plate (9).

2. The orthopedic joint rehabilitation training device according to claim 1, characterized in that: The adjustment mechanism includes a slot (10), which is located at the front and rear ends of the inner wall of the rocker arm A (5). A buckle (11) is engaged inside the rightmost slot (10). An elastic element (12) is attached to one end of the buckle (11) away from the slot (10). A rocker arm B (6) is attached to one end of the elastic element (12) away from the buckle (11). The surface of the rocker arm B (6) penetrates the left side of the interior of the rocker arm A (5). A gripping mechanism is provided on the left side of the opposite side of the two rocker arms B (6).

3. The orthopedic joint rehabilitation training device according to claim 1, characterized in that: The counterweight mechanism includes a counterweight block (13), which is bolted to the rear end of the right side of the connecting plate (9). A plug (14) is welded to the right side of the counterweight block (13), and the plug (14) of the left counterweight block (13) passes through the interior of the right counterweight block (13). A socket (15) is provided at the top of the plug (14). A pin (16) passes through and slides through the top and the top of the interior of the counterweight block (13), and the bottom of the right plug (14) is engaged with the socket (15) on the left side.

4. The orthopedic joint rehabilitation training device according to claim 2, characterized in that: The gripping mechanism includes a fixed ring (17), which is bolted to the left side of the opposite side of the two rocker arms B (6), and a rotating ring (18) is rotatably sleeved inside the fixed ring (17).

5. The orthopedic joint rehabilitation training device according to claim 1, characterized in that: The bottom of the rack (8) is bolted with a slider A (19), and the front end of the top of the back plate (2) is provided with a groove A (20), and the interior of the groove A (20) is slidably connected to the surface of the slider A (19).

6. The orthopedic joint rehabilitation training device according to claim 2, characterized in that: A slider B (21) is bolted to the right side of the bottom of the rocker arm B (6). A groove B (22) is opened at the bottom of the rocker arm A (5), and the inside of the groove B (22) is slidably connected to the surface of the slider B (21).

7. The orthopedic joint rehabilitation training device according to claim 3, characterized in that: The bottom of the counterweight (13) is bolted with a slider C (23), and the rear end of the top of the back plate (2) is provided with a groove C (24), and the interior of the groove C (24) is slidably connected to the surface of the slider C (23).

8. The orthopedic joint rehabilitation training device according to claim 4, characterized in that: Handles (25) are bolted to both sides of the inner wall of the rotating ring (18).

9. The orthopedic joint rehabilitation training device according to claim 1, characterized in that: A limiting block (26) is bolted to the left side of the top of the front plate (1).

10. The orthopedic joint rehabilitation training device according to claim 1, characterized in that: A heightening pad (27) is adhered to the right side of the top of the front panel (1).

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