A hip joint training device for orthopedic rehabilitation training

By introducing a laser rangefinder and an electric telescopic rod system into the hip joint trainer, precise adjustment based on the patient's leg flexion length is achieved, solving the problem of training discomfort and improving the efficiency and speed of rehabilitation training.

CN224540539UActive Publication Date: 2026-07-24NANJING CANSI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING CANSI TECH CO LTD
Filing Date
2025-02-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing orthopedic rehabilitation hip joint trainers cannot be adjusted according to the length of the patient's leg flexion, causing discomfort to the patient during rehabilitation training, affecting the training progress and prolonging the rehabilitation time.

Method used

A hip joint trainer was designed, which uses a laser rangefinder and an electric telescopic rod system. By recording the optimal position of the patient's leg flexion, the position and height of the pedal are adjusted using a threaded rod and slider mechanism to realize the flexion and straightening movements of the patient's leg, ensuring that the leg is in the best condition for rehabilitation training.

Benefits of technology

By adjusting the position and height of the pedals, patients can perform rehabilitation training in the optimal condition of their legs, improving training efficiency and recovery speed, and solving the problem of training progress being affected by discomfort caused by leg bending.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of orthopedic rehabilitation training technology, and in particular to a hip joint trainer for orthopedic rehabilitation training, including a lower bed board; it also includes an upper bed board and a footboard. Fixed cylinders are fixedly connected to both sides of the rear end of the lower bed board. A rotating shaft is movably connected to both fixed cylinders. A second fixed cylinder is fixedly connected to the middle of the outer side of the rotating shaft. The upper bed board is fixedly connected to the end of the second fixed cylinder away from the lower bed board. A concave block is fixedly connected to the middle of the lower end of the lower bed board. This utility model controls the extension length of the device to a length suitable for the patient's leg flexion by adjusting the position of a laser rangefinder. When the distance between the laser rangefinder and the slider is zero, the controller controls the motor to rotate in the opposite direction, thus reciprocating and driving the patient's leg to perform back-and-forth stretching movements. Therefore, the device can be adjusted to the most suitable position for different patients with different leg flexion angles and lengths, accelerating the rehabilitation training process.
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Description

Technical Field

[0001] This utility model relates to the field of orthopedic rehabilitation training technology, and in particular to a hip joint trainer for orthopedic rehabilitation training. Background Technology

[0002] The hip joint is one of the largest joints in the human body and plays an important physiological role. Hip joint damage can lead to mobility impairment and reduce quality of life. Therefore, hip joint rehabilitation training is of great significance, which requires the use of a hip joint trainer for orthopedic rehabilitation training.

[0003] Currently, most orthopedic rehabilitation hip joint trainers can only be adjusted according to the patient's height. However, patients of the same height may have different leg lengths, resulting in different leg flexion angles and lengths. This means that patients cannot achieve optimal leg flexion during rehabilitation training, affecting the progress of rehabilitation training, increasing rehabilitation time, and reducing recovery efficiency.

[0004] Therefore, to address the issue that most orthopedic rehabilitation hip joint trainers cannot adjust the device according to the patient's leg flexion length, causing discomfort during rehabilitation training, affecting the progress of rehabilitation training, and increasing rehabilitation time, a hip joint trainer for orthopedic rehabilitation training can be designed. The patient lies on the device with their legs bent, records the patient's leg flexion length according to the scale lines, adjusts the support plate to that length, places the patient's legs in the pedal, and starts the device. The pedal will then drive the patient's legs to perform flexion and straightening movements. Utility Model Content

[0005] To overcome the problem that most orthopedic rehabilitation hip joint trainers can only be adjusted according to the patient's height, while patients of the same height may have different leg lengths, resulting in different leg bending angles and lengths, causing discomfort during rehabilitation training, affecting the progress of rehabilitation training, increasing rehabilitation time, and reducing rehabilitation efficiency.

[0006] The technical solution of this utility model is as follows: a hip joint trainer for orthopedic rehabilitation training, including a lower bed board; it also includes an upper bed board and a footboard. Fixed cylinders are fixedly connected to both sides of the rear end of the lower bed board. A rotating shaft is movably connected to both fixed cylinders. A second fixed cylinder is fixedly connected to the outer center of the rotating shaft. The upper bed board is fixedly connected to the end of the second fixed cylinder away from the lower bed board. A concave block is fixedly connected to the lower center of the lower bed board. A slider is slidably connected inside the concave block. A threaded rod is rotatably connected inside the concave block. The slider and the threaded rod are threadedly connected. A connecting block is fixedly connected to the lower end of the slider. L-shaped plates are fixedly connected to the left and right ends of the connecting block. The two L-shaped plates... The upper end is symmetrically and fixedly connected with two electric telescopic rods. The movable ends of the two electric telescopic rods are fixedly connected with push rods. The rear ends of the two push rods are fixedly connected with pedals. The lower left side of the lower bed board is fixedly connected with a concave block. The inside of the concave block is a slider. The inside of the concave block is a threaded rod. The slider and the threaded rod are threadedly connected. The lower end of the slider is fixedly connected with a support plate. A laser rangefinder is embedded in the front right side of the support plate. The upper left side of the support plate is fixedly connected with an observation column. The left surface of the lower bed board has scale lines. The lower outer side of the lower bed board is symmetrically and fixedly connected with four support columns. The two support columns on the left and right sides are fixedly connected to a placement plate.

[0007] Preferably, the patient lies on the lower and upper bed boards, first bending their legs to the optimal position, recording this position according to the scale line. Controlling the rotation of the threaded rod two drives the slider two to move, thereby moving the support plate one and the laser rangefinder. Observing the observation column, the position of the laser rangefinder is adjusted to this position. The patient's legs are placed on the pedal, and controlling the rotation of the electric telescopic rod one drives the slider one to move back and forth, thereby moving the L-shaped plate and the electric telescopic rod one. In turn, the push rod is controlled to move the pedal. The electric telescopic rod one will adjust the height of the push rod and the pedal according to the height of the foot. When the distance measured by the laser rangefinder to slider one is zero, the motor one is controlled to reverse and move the pedal forward to straighten the patient's legs. This process is repeated.

[0008] Preferably, a motor is fixedly connected to the front end of the concave block one, and the output shaft of the motor is fixedly connected to the threaded rod one; a motor is fixedly connected to the front end of the concave block two, and the output shaft of the motor is fixedly connected to the threaded rod two.

[0009] Preferably, a controller is fixedly connected to the rear left side of the lower bed board, and the laser rangefinder, motor one, motor two, and electric telescopic rod one are all electrically connected to the controller.

[0010] Preferably, each pedal has four fixing blocks symmetrically fixed to its left and right ends, and the fixing blocks at both ends are provided with elastic straps. A support plate is fixedly connected to the lower front side of each pedal.

[0011] Preferably, a connecting frame is fixedly connected to the lower end of the upper bed board, and a support column is fixedly connected to the left and right ends and the middle position inside the connecting frame. A rotating column is rotatably connected to the middle of the outer side of the support column, and a connecting block is fixedly connected to the lower end of the rotating column.

[0012] Preferably, a support column 2 is fixedly connected to the rear side of the two adjacent placement plates. A rotating block is rotatably connected through the middle of the outer side of the support column 2. A connecting plate is fixedly connected to the upper end of the rotating block. An electric telescopic rod 2 electrically connected to the controller is fixedly connected to the upper end of the connecting plate. The movable end of the electric telescopic rod 2 is fixedly connected to the connecting block 2.

[0013] Preferably, four support plates are symmetrically fixedly connected to the lower outer side of the lower bed board. The end of the four support plates away from the concave block is fixedly connected to a fixed column. The left and right fixed columns are both rotatably connected to handrails. The left and right rear ends of the lower bed board are rotatably connected to blocking columns.

[0014] The beneficial effects of this utility model are:

[0015] The patient lies on the device with their legs bent to the optimal position. The foot position is recorded, and motor two is activated to control the forward and reverse rotation of threaded rod two, thereby controlling the movement of slider two and support plate one. This adjusts the position of the laser rangefinder to the recorded position. The patient's foot is placed on the pedal, and motor one is activated to control the movement of slider one, which in turn moves the pedal. When the distance between the laser rangefinder and slider one is zero, the data is transmitted to the controller. At this time, the controller controls motor one to rotate in the opposite direction, straightening the patient's leg. This process repeats, causing the patient's leg to perform a back-and-forth stretching motion. Therefore, the laser rangefinder can be adjusted to the most suitable position for each patient, based on the different bending angles and lengths of their legs. This allows the patient's leg to bend to the optimal position, thus solving the problem that the patient's rehabilitation training progress is affected by the inability to bend to the optimal position, accelerating the rehabilitation training process, and improving the efficiency of the patient's recovery. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a hip joint trainer for orthopedic rehabilitation training according to this utility model.

[0017] Figure 2 The diagram shown is a schematic of the lower bed board structure of a hip joint trainer for orthopedic rehabilitation training according to this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the electric telescopic rod of a hip joint trainer for orthopedic rehabilitation training according to this utility model.

[0019] Figure 4The diagram shown is a schematic of the pedal structure of a hip joint trainer for orthopedic rehabilitation training according to this utility model.

[0020] Figure 5 The diagram shows the structural connection between the upper and lower bed boards of a hip joint trainer for orthopedic rehabilitation training according to this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Lower bed board; 2. Fixed cylinder one; 3. Rotating shaft; 4. Fixed cylinder two; 5. Upper bed board; 6. Concave block one; 7. Slider one; 8. Threaded rod one; 9. Connecting block one; 10. L-shaped plate; 11. Electric telescopic rod one; 12. Push rod; 13. Pedal; 14. Concave block two; 15. Slider two; 16. Threaded rod two; 17. Support plate one; 18. Laser rangefinder; 19. Observation column; 20. Scale line; 21. Motor 1; 22. Motor 2; 23. Controller; 24. Fixing block; 25. Elastic strap; 26. Support plate 2; 27. Connecting frame; 28. Support column 1; 29. ​​Rotating column; 30. Connecting block 2; 31. Electric telescopic rod 2; 32. Connecting plate; 33. Rotating block; 34. Support column 2; 35. Support plate 3; 36. Fixing column; 37. Handrail; 38. Blocking column; 39. Support column 3; 40. Placement plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a hip joint trainer for orthopedic rehabilitation training, including a lower bed board 1; it also includes an upper bed board 5 and a footboard 13. Fixed cylinders 2 are fixedly connected to both rear ends of the lower bed board 1. A rotating shaft 3 is movably connected through both fixed cylinders 2. A fixed cylinder 4 is fixedly connected through the middle of the outer side of the rotating shaft 3. The upper bed board 5 is fixedly connected to the end of the fixed cylinder 4 away from the lower bed board 1. A concave block 6 is fixedly connected to the middle of the lower end of the lower bed board 1. A slider 7 is slidably connected inside the concave block 6. A threaded rod 8 is rotatably connected inside the concave block 6. 7 and threaded rod 8 are threaded together. A connecting block 9 is fixedly connected to the lower end of slider 7. L-shaped plates 10 are fixedly connected to both ends of connecting block 9. Electric telescopic rods 11 are symmetrically fixedly connected to the upper ends of the two L-shaped plates 10. Push rods 12 are fixedly connected to the movable ends of the two electric telescopic rods 11. Pedals 13 are fixedly connected to the rear ends of the two push rods 12. A concave block 14 is fixedly connected to the lower left side of the lower bed plate 1. Slider 15 is slidably connected inside concave block 14. Threaded rod 16 is rotatably connected inside concave block 14. Slider 15 and threaded rod 16 are threaded together. A support plate 17 is fixedly connected to the lower end of slider 2 15. A laser rangefinder 18 is embedded in the front right side of support plate 17. An observation column 19 is fixedly connected to the upper left side of support plate 17. A scale line 20 is provided on the left surface of the lower bed board 1. Four support columns 39 are symmetrically fixedly connected to the lower outer side of the lower bed board 1. The two support columns 39 on the left and right sides are jointly fixedly connected to a placement plate 40. The patient lies on the lower bed board 1 and the upper bed board 5, first bending the legs to the maximum. This position is recorded according to the scale line 20. The screw rod 2 16 is rotated to drive slider 2 15 to move, thereby driving the support... The support plate 17 and laser rangefinder 18 are moved. The observation column 19 is adjusted to position the laser rangefinder 18. The patient's leg is placed on the pedal 13. The electric telescopic rod 11 is rotated to drive the slider 7 to move back and forth, thereby moving the L-shaped plate 10 and the electric telescopic rod 11. This, in turn, controls the push rod 12 to move the pedal 13. The electric telescopic rod 11 will adjust the height of the push rod 12 and the pedal 13 according to the height of the foot. When the laser rangefinder 18 measures a distance of zero from the slider 7, the motor 21 is reversed to move the pedal 13 forward and straighten the patient's leg. This process is repeated.

[0024] Please see Figure 2 and Figure 4In this embodiment, a motor 21 is fixedly connected to the front end of concave block 6, and the output shaft of motor 21 is fixedly connected to threaded rod 8. A motor 22 is fixedly connected to the front end of concave block 14, and the output shaft of motor 22 is fixedly connected to threaded rod 16. Starting the motor controls the threaded rod 8 to rotate forward and backward, thereby moving slider 7, which in turn moves connecting block 9 and L-shaped plate 10. Starting motor 22 controls the threaded rod 16 to rotate forward and backward, thereby moving slider 15, which in turn moves support plate 17. A controller 23, laser rangefinder 18, and motor 21 are fixedly connected to the rear left side of the lower bed plate 1. Motor 22 and electric telescopic rod 11 are electrically connected to controller 23. When the laser rangefinder 18 measures the distance to slider 7 as zero, it transmits the data to controller 23. At this time, controller 23 controls motor 21 to rotate in the opposite direction. Four fixing blocks 24 are symmetrically fixed to the left and right ends of each pedal 13. Elastic straps 25 are provided on the fixing blocks 24 at both ends. Support plate 26 is fixedly connected to the lower front end of each pedal 13. The elastic straps 25 and support plate 26 fix and support the patient's foot. The laser rangefinder 18 used in this device is a GLM30 laser rangefinder.

[0025] Please see Figure 2 , Figure 3 and Figure 4 In this embodiment, a connecting frame 27 is fixedly connected to the lower end of the upper bed board 5. Support columns 28 are fixedly connected to the left and right ends and the middle position inside the connecting frame 27. A rotating column 29 is rotatably connected to the middle outer side of the support column 28. A connecting block 30 is fixedly connected to the lower end of the rotating column 29. The rotating column 29 can rotate back and forth on the surface of the support column 28. Support columns 34 are fixedly connected to the rear sides of the adjacent ends of the placement plates 40. A rotating block 33 is rotatably connected to the middle outer side of the support column 34. A connecting plate 32 is fixedly connected to the upper end of the rotating block 33. An electric telescopic rod 31 electrically connected to the controller 23 is fixedly connected to the upper end of the connecting plate 32. The movable end of the telescopic rod 2 31 is fixedly connected to the connecting block 2 30. The electric telescopic rod 2 31 will move the support column 1 28 up and down, thereby driving the connecting frame 27 and the upper bed board 5 to move up and down, so that the patient can adjust the bed to a comfortable angle. Four support plates 3 35 are symmetrically fixedly connected to the lower outer side of the lower bed board 1. The end of the four support plates 3 35 away from the concave block 1 6 is fixedly connected to the fixed column 36. The left fixed column 36 and the right fixed column 36 are both rotatably connected to the handrail 37. The left and right ends of the lower bed board 1 are rotatably connected to the blocking column 38. The patient can hold the handrail 37 with both hands to fix his / her body. The handrail 37 can be raised or lowered by rotating the blocking column 38.

[0026] During the procedure, the patient lies on the lower bed board 1 and upper bed board 5. The handrail 37 is then raised, and the blocking post 38 is rotated to lock the handrail 37 in place. The electric telescopic rod 31 is used to adjust the upper bed board 5 to a comfortable angle for the patient. The patient first bends their legs to the optimal position, and this position is recorded according to the scale line 20. The motor 22 is then started to control the rotation of the threaded rod 16, which in turn moves the slider 15, thereby moving the support plate 17 and the laser rangefinder 18. The observation post 19 is used to adjust the position of the laser rangefinder 18 to this position. At this time, the patient holds the handrail 3. 7. Secure the body and place the patient's legs on the pedal 13. Start the motor 21 to control the electric telescopic rod 11 to rotate, which will drive the slider 7 to move back and forth, thereby moving the L-shaped plate 10 and the electric telescopic rod 11. This will then control the push rod 12 to move the pedal 13. The electric telescopic rod 11 will adjust the height of the push rod 12 and the pedal 13 according to the height of the foot. When the laser rangefinder 18 measures that the distance to the slider 7 is zero, control the motor 21 to reverse and move the pedal 13 forward. This process is repeated to make the patient's legs perform back-and-forth stretching movements.

[0027] Through the above steps, the patient lies on the device with their legs bent to the optimal position. The foot position is recorded, and the laser rangefinder 18 is moved by motor 22. The position of the laser rangefinder 18 is adjusted to the recording position, and the slider 7 is moved, thereby moving the pedal 13. When the distance between the laser rangefinder 18 and the slider 7 is zero, the controller 23 will control motor 21 to rotate in the opposite direction, straightening the patient's leg. This reciprocating motion causes the patient's leg to perform a back-and-forth stretching exercise. Therefore, the device can be adjusted to the most suitable bending length for different patients based on their leg bending angle and length. This solves the problem that patients cannot bend their legs to the optimal position during rehabilitation training, speeds up the rehabilitation training, and improves the efficiency of patient recovery. This addresses the issue that most orthopedic rehabilitation hip joint trainers cannot adjust the device according to the patient's leg bending length, causing discomfort during rehabilitation training, affecting the progress of rehabilitation training, and increasing rehabilitation time.

Claims

1. A hip joint training device for orthopedic rehabilitation training, comprising a lower bed board (1); characterized in that: It also includes an upper bed board (5) and a footboard (13). The two ends of the lower bed board (1) are fixedly connected to the two fixed cylinders (2). The two fixed cylinders (2) are connected to the rotating shaft (3) through which the rotating shaft (3) is connected. The middle of the outer side of the rotating shaft (3) is fixedly connected to the fixed cylinder (4). The end of the fixed cylinder (4) away from the lower bed board (1) is fixedly connected to the upper bed board (5). The middle of the lower end of the lower bed board (1) is fixedly connected to the concave block (6). The concave block (6) is slidably connected to the slider (7). The concave block (6) is rotatably connected to the threaded rod (8). The slider (7) and the threaded rod (8) are threadedly connected. The lower end of the slider (7) is fixedly connected to the connecting block (9). The left and right ends of the connecting block (9) are fixedly connected to the L-shaped plate (10). The upper ends of the two L-shaped plates (10) are symmetrically fixedly connected to the electric telescopic rod (11). 11) The movable end is fixedly connected to a push rod (12), the rear ends of the two push rods (12) are fixedly connected to a pedal (13), the lower left side of the lower bed board (1) is fixedly connected to a concave block two (14), the concave block two (14) is slidably connected to a slider two (15), the concave block two (14) is rotatably connected to a threaded rod two (16), the slider two (15) and the threaded rod two (16) are threadedly connected, the lower end of the slider two (15) is fixedly connected to a support plate one (17), the front right side of the support plate one (17) is embedded with a laser rangefinder (18), the upper left side of the support plate one (17) is fixedly connected to an observation column (19), the left surface of the lower bed board (1) is provided with a scale line (20), the lower outer side of the lower bed board (1) is symmetrically fixedly connected to four support columns three (39), the two support columns three (39) on the left and right sides are fixedly connected to a placement plate (40).

2. The hip joint trainer for orthopedic rehabilitation training according to claim 1, characterized in that: The front end of the concave block 1 (6) is fixedly connected to the motor 1 (21), and the output shaft of the motor 1 (21) is fixedly connected to the threaded rod 1 (8). The front end of the concave block 2 (14) is fixedly connected to the motor 2 (22), and the output shaft of the motor 2 (22) is fixedly connected to the threaded rod 2 (16).

3. A hip joint trainer for orthopedic rehabilitation training according to claim 2, characterized in that: A controller (23) is fixedly connected to the rear left end of the lower bed board (1). The laser rangefinder (18), motor one (21), motor two (22), and electric telescopic rod one (11) are all electrically connected to the controller (23).

4. A hip joint trainer for orthopedic rehabilitation training according to claim 1, characterized in that: Each pedal (13) has four fixed blocks (24) symmetrically fixed at both ends. The fixed blocks (24) at both ends are provided with elastic straps (25). Each pedal (13) has a support plate (26) fixedly connected to the lower front end.

5. A hip joint trainer for orthopedic rehabilitation training according to claim 3, characterized in that: A connecting frame (27) is fixedly connected to the lower end of the upper bed board (5). A support column (28) is fixedly connected to the left and right ends of the connecting frame (27) and to the middle position. A rotating column (29) is rotatably connected to the middle of the outer side of the support column (28). A connecting block (30) is fixedly connected to the lower end of the rotating column (29).

6. A hip joint trainer for orthopedic rehabilitation training according to claim 5, characterized in that: The two rear sides of the two placement plates (40) are fixedly connected to a support column (34). A rotating block (33) is rotatably connected through the middle of the outer side of the support column (34). A connecting plate (32) is fixedly connected to the upper end of the rotating block (33). An electric telescopic rod (31) electrically connected to the controller (23) is fixedly connected to the upper end of the connecting plate (32). The movable end of the electric telescopic rod (31) is fixedly connected to the connecting block (30).

7. A hip joint trainer for orthopedic rehabilitation training according to claim 1, characterized in that: Four support plates (35) are symmetrically fixedly connected to the lower outer side of the lower bed board (1). The end of the four support plates (35) away from the concave block (6) is fixedly connected to a fixed column (36). The left fixed column (36) and the right fixed column (36) are both rotatably connected to a handrail (37). The left and right rear sides of the lower bed board (1) are rotatably connected to a blocking column (38).