Fracture rehabilitation training device

Abstract

The invention relates to the field of rehabilitation training devices, in particular to a fracture rehabilitation training device which comprises a shoulder pad, a big arm outer protection plate and a forearm outer protection plate, the shoulder pad is connected with the big arm outer protection plate through a universal connecting seat, the big arm outer protection plate is rotationally connected with the forearm outer protection plate through a hinge disc, the shoulder pad is of a U-shaped structure, and the forearm outer protection plate is of a U-shaped structure. The shoulder pad is clamped to the shoulder from the upper portion, a pair of inner bridle holes are formed in the centripetal side of the shoulder pad, a pair of outer bridle holes are formed in the centrifugal side of the shoulder pad, the inner bridle holes are connected with the bridle, the bridle penetrates through the armpit of the body on the opposite side, the outer bridle holes are connected with the bridle, and the bridle penetrates through the armpit of the body on the same side. According to the invention, the limitation in the prior art is effectively solved, and a more comprehensive and efficient fracture rehabilitation solution is provided for patients.

Description

Technical Field

[0001] The invention relates to the field of rehabilitation training devices, in particular to a fracture rehabilitation training device. Background Art

[0002] In medical practice, arm fractures, especially fractures of the upper arm (humerus) or forearm (ulna and radius), are one of the common orthopedic injuries. For this type of fracture, external fixation with splints or plaster is usually used to stabilize the fracture site and promote natural healing of the bone. At the same time, in order to prevent the movement of the fracture site due to gravity or improper activity, the patient's arm often needs to be suspended from the neck with auxiliary tools such as bandages to reduce the burden. Although the above methods can effectively manage fractures to a certain extent, they also have obvious limitations, especially for the specific patient group of children and adolescents. Children and adolescents are active and it is difficult for them to remain still for a long time, which poses a huge challenge to the treatment of fractures that require strict fixation. Failure to follow the doctor's advice may cause the fracture ends to be dislocated and affect the healing effect.

[0003] In addition, fixing the arms in a certain position for a long time will significantly reduce the range of motion of the joints and cause joint stiffness. At the same time, the lack of necessary muscle activity will lead to muscle atrophy, further affecting the recovery process and future quality of life. For children, long-term physical restrictions may cause depression, anxiety or rebellious emotions, affecting mental health. The fixation of the arms limits children's daily activities and social participation, such as going to school and playing games, which may affect their social skills and learning progress.

[0004] Therefore, there is an urgent need for a new type of fracture rehabilitation trainer to provide an effective solution to the defects of the existing technology. Summary of the invention

[0005] The purpose of the present invention is to provide a fracture rehabilitation trainer to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A fracture rehabilitation trainer comprises a shoulder pad, an upper arm outer guard plate and a forearm outer guard plate, wherein the shoulder pad is connected to the upper arm outer guard plate by a universal connecting seat, and the upper arm outer guard plate is rotatably connected to the forearm outer guard plate by a hinge plate, the shoulder pad is arranged as a U-shaped structure, the shoulder pad is clamped onto the shoulder from above, a pair of inner strap holes are arranged on the centripetal side of the shoulder pad, and a pair of outer strap holes are arranged on the eccentric side of the shoulder pad, the inner strap holes are connected to the straps and the straps pass through the armpits of the opposite side of the body, the outer strap holes are connected to the straps and the straps pass through the armpits of the same side of the body, more than two pairs of upper arm strap holes are arranged on the upper arm outer guard plate, the upper arm strap holes are connected to the straps to tighten the upper arm, and more than two pairs of forearm strap holes are arranged on the forearm outer guard plate, the forearm strap holes are connected to the straps to tighten the forearm.

[0008] Furthermore, the universal joint seat includes a ball joint seat and an articulation ball, the articulation ball is arranged at one end of the upper arm outer guard plate away from the lower arm outer guard plate, the ball joint seat is fixedly connected to the eccentric side of the shoulder pad, the articulation ball is hinged in the ball groove of the ball joint seat, and an avoidance groove is provided around the ball groove.

[0009] Furthermore, the articulated plate includes an inner plate and an outer plate, the inner plate is arranged on the part of the outer guard plate of the upper arm away from the ball joint seat, and the outer plate is arranged on the upper end of the outer guard plate of the lower arm. The inner plate is fixedly connected with a pin shaft extending outward, and the pin shaft is rotatably connected to the outer plate.

[0010] Furthermore, an electric power-assisting mechanism is provided at the connection between the universal connecting seat and the articulated plate, and the electric power-assisting mechanism is driven by a motor to assist the joint movement.

[0011] Furthermore, the electric power assist mechanism on the articulated disk includes a fixed disk fixedly connected to the pin shaft, a gear ring is provided on the outer edge of the fixed disk, a group of intermediate gears are meshingly installed on the inner side of the gear ring, an installation box is fixedly connected to the outer disk, a motor is fixedly installed at the center position of the installation box, a center gear is fixedly connected to the output shaft of the motor, the center gear is also meshingly installed with all the intermediate gears, a box cover is installed on the outer side of the installation box, and a control component and a battery are installed in the box cover.

[0012] Furthermore, the electric power assist mechanism on the universal joint seat includes a rope shaft rotatably connected to the ball joint seat, a lifting rope is connected to the rope shaft, the other end of the lifting rope is connected to the outer guard plate of the upper arm, the end of the rope shaft is fixedly connected to a fixed disk, a gear ring is provided on the outer edge of the fixed disk, a group of intermediate gears are meshingly installed on the inner side of the gear ring, an installation box is fixedly connected to the ball joint seat, a motor is fixedly installed at the center position of the installation box, a center gear is fixedly connected to the output shaft of the motor, and the center gear is also meshingly installed with all the intermediate gears.

[0013] Furthermore, a circumferential groove is provided on the outer wall of the inner disk, a pair of sliders are slidably connected in the circumferential groove, and a locking screw is connected to the slider. After the locking screw locks the slider, the rotation angle of the outer guard plate of the forearm can be limited.

[0014] Furthermore, ventilation holes are provided on the upper arm outer guard plate and the lower arm outer guard plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the flexible connection design and comfortable shoulder pad and strap system, the present invention can effectively reduce the discomfort of patients when wearing the device for a long time, improve the compliance and rehabilitation enthusiasm of patients, and is especially suitable for active children and adolescent patients. The design of the universal connection seat and the hinged plate allows the arm to move naturally to a certain extent within the control range, which helps to prevent joint stiffness and accelerate the recovery of the joint range of motion. Despite the flexibility provided, the overall structure of the device can still effectively stabilize the fracture site, prevent the dislocation of the fracture ends caused by improper activity, and ensure the healing effect. The present invention effectively solves the limitations of the prior art and provides patients with a more comprehensive and efficient fracture rehabilitation solution.

[0017] 2. The electric power-assist mechanism in the present invention can accurately control the range and speed of joint movement, provide patients with personalized rehabilitation training programs, and accelerate the rehabilitation process. By assisting joint movement, the muscle burden of patients during the rehabilitation process is reduced, the comfort level is improved, and patients are encouraged to actively participate in rehabilitation training. The design of the locking mechanism allows joint movement to be restricted when necessary to ensure safety at specific rehabilitation stages while maintaining overall flexibility. The electric power-assist mechanism simulates natural joint movement patterns, helps prevent joint stiffness, promotes the recovery of joint range of motion and the enhancement of muscle strength. By adjusting the parameters of the electric power-assist mechanism and the position of the locking mechanism, the introduction of the electric power-assist mechanism can further improve the effect, comfort and safety of rehabilitation training. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a fracture rehabilitation training device;

[0019] Figure 2 This is a schematic diagram of the shoulder pad structure;

[0020] Figure 3 It is a structural schematic diagram of the universal connection seat;

[0021] Figure 4 It is a schematic diagram of the outer structure of the upper arm outer guard plate and the lower arm outer guard plate;

[0022] Figure 5 It is a schematic diagram of the inner structure of the upper arm outer guard plate and the lower arm outer guard plate;

[0023] Figure 6 It is a structural schematic diagram of the electric power assist mechanism on the articulated plate;

[0024] Figure 7 It is a schematic diagram of the structural decomposition of the electric power assist mechanism on the articulated plate;

[0025] Figure 8 It is a schematic diagram of the structure of the inner plate and the fixed plate;

[0026] Fig. 9 It is a structural schematic diagram of the electric power assist mechanism on the universal joint seat;

[0027] Fig.10 This is a schematic diagram of the structural decomposition of the electric power-assist mechanism on the universal joint.

[0028] In the figure: 1. shoulder pad; 2. universal joint seat; 3. upper arm outer guard plate; 4. hinge plate; 5. lower arm outer guard plate; 6. inner strap hole; 7. outer strap hole; 8. upper arm strap hole; 9. lower arm strap hole; 10. vent hole; 11. hinge ball; 12. ball joint seat; 13. ball groove; 14. avoidance groove; 15. inner plate; 16. outer plate; 17. pin shaft; 18. fixed plate; 19. gear ring; 20. intermediate gear; 21. installation box; 22. motor; 23. center gear; 24. box cover; 25. circumferential groove; 26. locking screw; 27. lifting rope; 28. rope shaft. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 10 A fracture rehabilitation training device comprises a shoulder pad 1, an upper arm outer guard plate 3 and a forearm outer guard plate 5, the shoulder pad 1 is connected to the upper arm outer guard plate 3 by a universal connecting seat 2, the upper arm outer guard plate 3 and the forearm outer guard plate 5 are rotatably connected by a hinge plate 4, the shoulder pad 1 is arranged in a U-shaped structure, the shoulder pad 1 is clamped onto the shoulder from above, a pair of inner strap holes 6 are arranged on the centripetal side of the shoulder pad 1, a pair of outer strap holes 7 are arranged on the eccentric side of the shoulder pad 1, the inner strap holes 6 are connected to the straps and the straps pass through the armpits of the opposite side of the body, the outer strap holes 7 are connected to the straps and the straps pass through the armpits of the same side of the body, more than two pairs of upper arm strap holes 8 are arranged on the upper arm outer guard plate 3, the upper arm strap holes 8 are connected to the straps to tighten the upper arm, and more than two pairs of forearm strap holes 9 are arranged on the forearm outer guard plate 5, the forearm strap holes 9 are connected to the straps to tighten the forearm.

[0031] The universal joint seat 2 includes a ball joint seat 12 and an articulation ball 11. The articulation ball 11 is arranged at one end of the upper arm outer guard plate 3 away from the lower arm outer guard plate 5. The ball joint seat 12 is fixedly connected to the centrifugal side of the shoulder pad 1. The articulation ball 11 is articulated in a ball groove 13 of the ball joint seat 12, and an avoidance groove 14 is arranged around the ball groove 13.

[0032] The articulated plate 4 includes an inner plate 15 and an outer plate 16. The inner plate 15 is arranged at a part of the upper arm outer guard plate 3 away from the ball joint seat 12, and the outer plate 16 is arranged at the upper end of the lower arm outer guard plate 5. The inner plate 15 is fixedly connected with a pin shaft 17 extending outward, and the pin shaft 17 is rotatably connected to the outer plate 16.

[0033] Ventilation holes 10 are provided on the upper arm outer guard plate 3 and the lower arm outer guard plate 5 .

[0034] Working principle of this embodiment:

[0035] This embodiment is based on ergonomic design and aims to provide patients, especially children and adolescents, with a stable and flexible fracture rehabilitation solution. Its main components include a shoulder pad 1, a universal connection seat 2, an upper arm outer guard plate 3, a hinge plate 4, a lower arm outer guard plate 5, and a plurality of strap holes and a strap system.

[0036] Shoulder pad 1 fixation: The shoulder pad 1 is designed as a U-shaped structure, which is easy to clip onto the patient's shoulder from above, ensuring the basic stability of the entire device. The inner strap hole 6 and the outer strap hole 7 of the shoulder pad are connected to the straps respectively, and the straps pass through different armpits of the patient's body to form a cross fixation, effectively preventing the trainer from sliding or falling off on the shoulder.

[0037] Flexible connection between upper arm and lower arm: The upper arm outer guard plate 3 is connected to the shoulder pad 1 through the universal connection seat 2. This design allows the upper arm to move freely within a certain range while maintaining relative stability with the shoulder. The upper arm outer guard plate 3 and the lower arm outer guard plate 5 are rotatably connected through the hinge plate 4, simulating the activity mode of the natural elbow joint, so that the lower arm can rotate flexibly within a certain angle range, promoting the recovery of joint function.

[0038] Strap system: A plurality of pairs of upper arm strap holes 8 and forearm strap holes 9 are respectively provided on the upper arm outer guard plate 3 and the forearm outer guard plate 5. By connecting the straps and tightening the upper and forearms, the trainer can be ensured to fit the patient's limbs tightly, providing necessary support while avoiding a sense of oppression, thereby adapting to the needs of patients of different body shapes.

[0039] The ventilation holes 10 improve the breathability.

[0040] Through the flexible connection design and comfortable shoulder pad and strap system, this embodiment can effectively reduce the discomfort of patients when wearing the device for a long time, improve the compliance and rehabilitation enthusiasm of patients, and is especially suitable for active children and adolescent patients.

[0041] The design of the universal joint seat 2 and the articulated plate 4 allows the arm to move naturally to a certain extent within the control range, which helps to prevent joint stiffness and accelerate the recovery of the range of joint movement.

[0042] Despite providing flexibility, the overall structure of the device can still effectively stabilize the fracture site, prevent dislocation of the fracture ends due to improper movement, and ensure healing results.

[0043] By allowing a certain degree of muscle activity, this device helps to reduce muscle atrophy caused by long-term immobilization, promotes the recovery of muscle strength, and lays a good foundation for subsequent rehabilitation training.

[0044] Reducing physical restrictions and allowing patients to participate more in daily activities and social interactions can help alleviate depression, anxiety, or rebellious emotions and improve patients' mental health.

[0045] This embodiment effectively solves the limitations of the prior art and provides patients with a more comprehensive and efficient fracture rehabilitation solution.

[0046] Example 2: Please refer to Figures 1 to 10 , a fracture rehabilitation trainer, which differs from Example 1 in that an electric power-assisting mechanism is provided at the connection between the universal connecting seat 2 and the hinge plate 4, and the electric power-assisting mechanism assists joint movement through motor drive.

[0047] The electric power assist mechanism on the articulated disk 4 includes a fixed disk 18 fixedly connected to the pin shaft 17, a gear ring 19 is provided on the outer edge of the fixed disk 18, a group of intermediate gears 20 are meshingly installed on the inner side of the gear ring 19, a mounting box 21 is fixedly connected to the outer disk 16, a motor 22 is fixedly installed at the center position of the mounting box 21, a center gear 23 is fixedly connected to the output shaft of the motor 22, and the center gear 23 is also meshingly installed with all the intermediate gears 20, a box cover 24 is installed on the outer side of the mounting box 21, and a control component and a battery are installed in the box cover 24.

[0048] The electric power assist mechanism on the universal joint seat 2 includes a rope shaft 28 rotatably connected to the ball joint seat 12, a lifting rope 27 is connected to the rope shaft 28, the other end of the lifting rope 27 is connected to the outer guard plate 3 of the upper arm, the end of the rope shaft 28 is fixedly connected to a fixed plate 18, the outer edge of the fixed plate 18 is provided with a gear ring 19, a group of intermediate gears 20 are meshingly installed on the inner side of the gear ring 19, a mounting box 21 is fixedly connected to the ball joint seat 12, a motor 22 is fixedly installed at the center position of the mounting box 21, a center gear 23 is fixedly connected to the output shaft of the motor 22, and the center gear 23 is also meshingly installed with all the intermediate gears 20.

[0049] A circumferential groove 25 is provided on the outer wall of the inner plate 15, and a pair of sliders are slidably connected in the circumferential groove 25. The sliders are connected with locking screws 26. After the locking screws 26 lock the sliders, the rotation angle of the forearm outer guard plate 5 can be limited.

[0050] This embodiment introduces an electric assist mechanism at the connection between the universal connecting seat 2 and the hinge plate 4, and assists the joint movement through motor drive, thereby further improving the flexibility and effect of rehabilitation training.

[0051] Working principle of the electric assist mechanism of the articulated disk 4: When it is necessary to assist the forearm to move at a specific angle, the motor 22 is started, and its output shaft drives the center gear 23 to rotate. The center gear 23 meshes with multiple intermediate gears 20, and the intermediate gears 20 mesh with the ring gear 19. The ring gear 19 is fixedly connected to the fixed disk 18, thereby driving the fixed disk 18 and the outer disk 16 or related components connected thereto to rotate. Since the outer disk 16 or related components are connected to the outer guard plate 5 of the forearm, this rotation will be converted into joint movement of the forearm to help patients with rehabilitation training. A slider and a locking screw 26 are provided in the circumferential groove 25 on the inner disk 15. By adjusting the position of the slider and locking the screw, the rotation angle of the outer guard plate 5 of the forearm can be limited to ensure safety and stability at a specific rehabilitation stage.

[0052] Working principle of the electric assist mechanism of the universal joint seat 2: one end of the lifting rope 27 is connected to the outer guard plate 3 of the big arm, and the other end is connected to the fixed plate 18 through the rope shaft 28. When the motor is started, the rotation of the fixed plate 18 will drive the outer guard plate 3 of the big arm to adjust the angle through the lifting rope 27, and assist the big arm to lift. Similar to the articulated plate 4, the motor 22 drives the fixed plate 18 to rotate through the meshing transmission of the central gear 23 and the intermediate gear 20.

[0053] The electric power assist mechanism of this embodiment can accurately control the range and speed of joint movement, provide patients with personalized rehabilitation training programs, and accelerate the rehabilitation process. By assisting joint movement, the muscle burden of patients during the rehabilitation process is reduced, the comfort level is improved, and patients are encouraged to actively participate in rehabilitation training. The design of the locking mechanism allows joint movement to be restricted when necessary, ensuring safety at specific rehabilitation stages while maintaining overall flexibility. The electric power assist mechanism simulates natural joint movement patterns, helps prevent joint stiffness, promotes the recovery of joint range of motion and the enhancement of muscle strength. By adjusting the parameters of the electric power assist mechanism and the position of the locking mechanism, the device can adapt to the needs of patients of different age groups, different fracture types and rehabilitation stages, and provide a comprehensive rehabilitation solution.

[0054] In summary, the introduction of the electric power-assist mechanism further improves the effect, comfort and safety of rehabilitation training.

Claims

1. A fracture rehabilitation training device, comprising a shoulder pad (1), an upper arm outer guard plate (3) and a lower arm outer guard plate (5), characterized in that: The shoulder pad (1) is connected to the upper arm outer guard plate (3) via a universal connecting seat (2), and the upper arm outer guard plate (3) is rotatably connected to the forearm outer guard plate (5) via a hinge plate (4). The shoulder pad (1) is arranged as a U-shaped structure, and the shoulder pad (1) is clamped onto the shoulder from above. The shoulder pad (1) is provided with a pair of inner strap holes (6) on the centripetal side, and a pair of outer strap holes (7) on the eccentric side of the shoulder pad (1). The inner strap holes (6) are connected to the straps and the straps pass through the armpits of the opposite side of the body, and the outer strap holes (7) are connected to the straps and the straps pass through the armpits of the same side of the body. The upper arm outer guard plate (3) is provided with more than two pairs of upper arm strap holes (8), and the upper arm strap holes (8) are connected to the straps to tighten the upper arm. The forearm outer guard plate (5) is provided with more than two pairs of forearm strap holes (9), and the forearm strap holes (9) are connected to the straps to tighten the forearm.

2. A fracture rehabilitation training device according to claim 1, characterized in that: The universal joint seat (2) comprises a ball joint seat (12) and an articulation ball (11), wherein the articulation ball (11) is arranged at one end of the upper arm outer guard plate (3) away from the lower arm outer guard plate (5), the ball joint seat (12) is fixedly connected to the eccentric side of the shoulder pad (1), and the articulation ball (11) is articulated in a ball groove (13) of the ball joint seat (12), and an avoidance groove (14) is arranged around the ball groove (13).

3. A fracture rehabilitation training device according to claim 1, characterized in that: The hinge plate (4) comprises an inner plate (15) and an outer plate (16), wherein the inner plate (15) is arranged at a position of the upper arm outer guard plate (3) away from the ball joint seat (12), and the outer plate (16) is arranged at the upper end of the lower arm outer guard plate (5), and the inner plate (15) is fixedly connected with a pin shaft (17) extending outward, and the pin shaft (17) is rotatably connected to the outer plate (16).

4. A fracture rehabilitation training device according to claim 1 or 2, characterized in that: An electric power-assist mechanism is provided at the connection between the universal connection seat (2) and the hinge plate (4), and the electric power-assist mechanism assists the movement of the joint through the drive of a motor.

5. A fracture rehabilitation training device according to claim 4, characterized in that: The electric assist mechanism on the hinged disk (4) comprises a fixed disk (18) fixedly connected to a pin shaft (17); a gear ring (19) is provided on the outer edge of the fixed disk (18); a group of intermediate gears (20) are meshedly mounted on the inner side of the gear ring (19); a mounting box (21) is fixedly connected to the outer disk (16); a motor (22) is fixedly mounted at the center of the mounting box (21); a central gear (23) is fixedly connected to the output shaft of the motor (22); the central gear (23) is also meshedly mounted with all the intermediate gears (20); a box cover (24) is mounted on the outer side of the mounting box (21); a control component and a storage battery are mounted inside the box cover (24).

6. A fracture rehabilitation training device according to claim 4, characterized in that: The electric power assist mechanism on the universal joint seat (2) comprises a rope shaft (28) rotatably connected to the ball joint seat (12), a lifting rope (27) being connected to the rope shaft (28), the other end of which is connected to the outer guard plate (3) of the upper arm, a fixed plate (18) being fixedly connected to the end of the rope shaft (28), a gear ring (19) being provided on the outer edge of the fixed plate (18), a group of intermediate gears (20) being meshingly mounted on the inner side of the gear ring (19), a mounting box (21) being fixedly connected to the ball joint seat (12), a motor (22) being fixedly mounted at the center position of the mounting box (21), a central gear (23) being fixedly connected to the output shaft of the motor (22), and the central gear (23) being also meshingly mounted with all the intermediate gears (20).

7. A fracture rehabilitation training device according to claim 5, characterized in that: A circumferential groove (25) is provided on the outer wall of the inner plate (15), a pair of sliders are slidably connected in the circumferential groove (25), and a locking screw (26) is connected to the sliders. After the locking screw (26) locks the sliders, the rotation angle of the forearm outer guard plate (5) can be limited.

8. The fracture rehabilitation training device according to claim 1, characterized in that: The upper arm outer guard plate (3) and the lower arm outer guard plate (5) are both provided with ventilation holes (10).

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