Multifunctional postoperative rehabilitation exercise device for pediatric surgery

Abstract

The invention relates to the technical field of rehabilitation exercise devices, in particular to a pediatric surgical multifunctional postoperative rehabilitation exercise device which comprises a rotary connecting mechanism, the rotary connecting mechanism comprises two pairs of fixed base plates and rotary plate sleeves which are arranged on the inner side and the outer side of a joint respectively, and the rotary plate sleeves are rotationally connected to the fixed base plates; tightening mechanisms are connected to the fixed chassis and the rotating disc sleeve; the lacing mechanism comprises a hard outer framework, the hard outer framework is fixedly connected with the fixed chassis or the rotating disc sleeve, arc-shaped supporting plates are arranged on the inner side of the hard outer framework, lacing belts are connected to the arc-shaped supporting plates, and the arc-shaped supporting plates on the inner side and the outer side are laced on the upper limbs or the lower limbs through the lacing belts; the rotating disc sleeve on the inner side of the joint is rotationally connected to a fixed chassis through a rotating shaft, and an angle sensor for sensing the rotating angle of the rotating shaft is installed on the fixed chassis. The child rehabilitation exercise device effectively solves the problems that an existing child rehabilitation exercise device is single in function, lack of interestingness and insufficient in personalized adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation exercise devices, and particularly to a multifunctional postoperative rehabilitation exercise device for pediatric surgery. Background Technique

[0002] After children's knee and elbow joint surgeries, rehabilitation treatment is a crucial link to ensure functional recovery. The main goals of postoperative rehabilitation are to prevent tissue adhesion, restore muscle strength, and maintain joint mobility. To achieve these goals, joint fixation braces are usually required to protect the surgical site while performing appropriate activities to promote rehabilitation. However, most of the existing knee and elbow joint fixation braces have the following defects.

[0003] First, the functions are single. The existing braces mainly provide simple protection and lack diverse rehabilitation training modes. Postoperative rehabilitation requires gradually increasing the training intensity according to the specific conditions of the patients, while the existing braces cannot provide such progressive training support.

[0004] Second, they lack fun. The cooperation of child patients is relatively low. The design of traditional rehabilitation braces is monotonous and difficult to attract the attention of children, resulting in their unwillingness to actively participate in rehabilitation training and affecting the rehabilitation effect.

[0005] In addition, children grow and develop rapidly and have large individual differences. Existing braces often cannot be adjusted personalized according to the body shapes and rehabilitation progress of children, resulting in poor use effects.

[0006] Therefore, there is an urgent need for a new type of multifunctional postoperative rehabilitation exercise device for children to provide an effective solution to the defects of the existing technology. Summary of the Invention

[0007] The purpose of the present invention is to provide a multifunctional postoperative rehabilitation exercise device for pediatric surgery to solve the problems raised in the above background technique.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A multifunctional postoperative rehabilitation exercise device for pediatric surgery, comprising a rotational connection mechanism. The rotational connection mechanism includes two pairs of fixed chassis and rotating disc sleeves respectively arranged on the inner and outer sides of the joint. The rotating disc sleeve is rotationally connected to the fixed chassis, and tightening mechanisms are connected to both the fixed chassis and the rotating disc sleeve. The tightening mechanism includes a rigid outer skeleton, which is fixedly connected to the fixed chassis or the rotating disc sleeve. An arc-shaped support plate is arranged inside the rigid outer skeleton, and a tightening belt is connected to the arc-shaped support plate. The upper and lower limbs are tightened by the tightening belt between the inner and outer arc-shaped support plates. The rotating disc sleeve on the inner side of the joint is rotationally connected to the fixed chassis through a rotating shaft, and an angle sensor for sensing the rotation angle of the rotating shaft is installed on the fixed chassis. A shaft sleeve is arranged at the center position of the fixed chassis on the outer side of the joint, a main shaft is rotationally connected in the shaft sleeve, the main shaft is fixedly connected to the rotating disc sleeve, a touch screen is arranged on the outer side wall of the rotating disc sleeve, a control module, a storage battery and a servo motor are arranged on the fixed chassis. The storage battery supplies power to the control module, the servo motor, the angle sensor and the touch screen. The servo motor and the touch screen transmit signals bidirectionally with the control module, and the angle sensor transmits signals unidirectionally to the control module. A driving gear is fixedly connected to the output shaft of the servo motor, a driven gear is rotationally connected to the main shaft, and the driving gear and the driven gear are meshed and installed. The main shaft and the driven gear are driven by a clutch mechanism.

[0010] Further, the clutch mechanism includes an inner friction disc and an outer friction disc. The inner friction disc is fixedly installed on the outer side wall of the driven gear. A spline is arranged at one end of the main shaft extending out of the driven gear, and the spline is slidably connected to the key groove at the center position of the outer friction disc. Spring grooves are annularly and arrayedly distributed on the outer side wall of the outer friction disc, springs are connected in the spring grooves, one end of the spring away from the outer friction disc is connected to the inner side wall of the rotating disc sleeve, a magnetic adsorption ring is fixedly connected to the outer side wall of the outer friction disc, and an electromagnet ring is fixedly connected to the inner side wall of the rotating disc sleeve.

[0011] Further, the length of the rigid outer skeleton is adjustable. The rigid outer skeleton includes an inserting strip and a slot, the inserting strip and the slot are in plug-in fit, locking holes are equidistantly distributed on the inserting strip, and a locking screw is threadedly connected to the slot. The rod body of the locking screw is in plug-in fit with the locking hole.

[0012] Further, the length of the tightening belt is adjustable.

[0013] Further, a shoulder strap is detachably connected to the top of the upper pair of rigid outer skeletons.

[0014] Further, a wireless communication module is carried on the control module. The control module is signal-connected to an external display device through the wireless communication module. The control module transmits the angle signal of the angle sensor to the external display device, and the external display device visually presents the change of the angle signal through software.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The power-free mode, resistance mode, and assistance mode that can be achieved by the present invention can meet the rehabilitation needs at different stages after surgery, providing comprehensive rehabilitation support from early protection to late-stage intensive training. Moreover, users can adjust the intensity and rotation range through the touch screen to achieve personalized rehabilitation training, adapting to the body shape and rehabilitation progress of children. The collaborative work of the angle sensor and the control module ensures that joint activities are within a safe range, avoiding overstretching or injury.

[0017] 2. In this embodiment, the length adjustment function of the rigid outer skeleton can adapt to children of different ages and body shapes, ensuring that the device fits closely with the limb, improving the comfort and stability of use. The adjustable length design of the tightening belt further enhances the fixing effect of the device, avoiding displacement or loosening during the rehabilitation training process, and ensuring the safety and effectiveness of the training. The detachable connection design of the shoulder strap can share the weight of the device, reducing the limb burden, especially suitable for long-term wearing, and improving the comfort and cooperation of children.

[0018] 3. By converting the angle signal of the angle sensor into a dynamic animation and interacting with child patients, the device not only makes the rehabilitation training interesting and gamified but also significantly improves the cooperation and training effect of children. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a multifunctional postoperative rehabilitation exercise device for pediatric surgery;

[0020] Figure 2 It is a schematic structural diagram of a multifunctional postoperative rehabilitation exercise device for pediatric surgery configured with a shoulder strap;

[0021] Figure 3 It is a schematic structural diagram of the inner fixed chassis and rotating disk sleeve of the joint;

[0022] Figure 4 It is a schematic structural diagram of the outer fixed chassis and rotating disk sleeve of the joint;

[0023] Figure 5 It is a schematic diagram of the internal structure of the outer fixed chassis and rotating disk sleeve of the joint;

[0024] Figure 6 It is an exploded schematic diagram of the internal structure of the outer fixed chassis and rotating disk sleeve of the joint;

[0025] Figure 7 It is a schematic structural diagram of the outer fixed chassis of the joint and the components installed thereon;

[0026] Figure 8 It is a schematic structural diagram of the rigid outer skeleton, arc-shaped support plate, and tightening belt;

[0027] Figure 9 It is a schematic diagram of the structure of the hard exoskeleton, the arc-shaped support plate and the tightening belt.

[0028] In the figure: 1. tightening mechanism; 2. hard outer frame; 3. arc-shaped support plate; 4. tightening belt; 5. rotating connection mechanism; 6. fixed chassis; 7. rotating disk sleeve; 8. rotating shaft; 9. angle sensor; 10. touch screen; 11. servo motor; 12. driving gear; 13. driven gear; 14. bushing; 15. outer friction plate; 16. spline; 17. keyway; 18. spring slot; 19. spring; 20. magnetic adsorption ring; 21. electromagnet ring; 22. main shaft; 24. battery; 25. control module; 26. insert strip; 27. slot; 28. lock hole; 29. ​​locking screw; 30. shoulder strap. 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 9 A multifunctional postoperative rehabilitation exercise device for pediatric surgery, comprising a rotating connection mechanism 5, the rotating connection mechanism 5 comprises two pairs of fixed chassis 6 and rotating disc sleeves 7 respectively arranged on the inner and outer sides of the joint, the rotating disc sleeve 7 is rotatably connected to the fixed chassis 6, and the fixed chassis 6 and the rotating disc sleeve 7 are both connected with a tightening mechanism 1; the tightening mechanism 1 comprises a hard exoskeleton 2, the hard exoskeleton 2 is fixedly connected to the fixed chassis 6 or the rotating disc sleeve 7, an arc-shaped support plate 3 is arranged on the inner side of the hard exoskeleton 2, a tightening belt 4 is connected to the arc-shaped support plate 3, and the inner and outer arc-shaped support plates 3 are tightened on the upper limb or lower limb through the tightening belt 4; the rotating disc sleeve 7 on the inner side of the joint is rotatably connected to the fixed chassis 6 through the rotating shaft 8, and an angle sensor 9 for sensing the rotation angle of the rotating shaft 8 is installed on the fixed chassis 6; A shaft sleeve 23 is provided at the center position of the fixed chassis 6 on the outside of the joint, and a main shaft 22 is rotatably connected in the shaft sleeve 23. The main shaft 22 is fixedly connected to the rotating disk sleeve 7, and a touch screen 10 is provided on the outer wall of the rotating disk sleeve 7. A control module 25, a battery 24 and a servo motor 11 are provided on the fixed chassis 6. The battery 24 supplies power to the control module 25, the servo motor 11, the angle sensor 9 and the touch screen 10. The servo motor 11 and the touch screen 10 transmit signals bidirectionally with the control module 25, and the angle sensor 9 transmits signals unidirectionally to the control module 25. A driving gear 12 is fixedly connected to the output shaft of the servo motor 11, and a driven gear 13 is rotatably connected to the main shaft 22. The driving gear 12 is meshed and installed with the driven gear 13, and the main shaft 22 and the driven gear 13 are transmitted through a clutch mechanism.

[0031] The clutch mechanism includes an inner friction disk 14 and an outer friction disk 15. The inner friction disk 14 is fixedly installed on the outer side wall of the driven gear 13. A spline 16 is provided at one end of the main shaft 22 extending out of the driven gear 13. The spline 16 is slidably connected to a keyway 17 at the central position of the outer friction disk 15. Spring grooves 18 are annularly and arrayedly distributed on the outer side wall of the outer friction disk 15. Springs 19 are connected in the spring grooves 18. One end of the spring 19 away from the outer friction disk 15 is connected to the inner side wall of the rotating disk sleeve 7. A magnetic adsorption ring 20 is fixedly connected to the outer side wall of the outer friction disk 15. An electromagnet ring 21 is fixedly connected to the inner side wall of the rotating disk sleeve 7.

[0032] Working principle of this embodiment:

[0033] This embodiment is fixed on the upper or lower limb of a child through the tightening mechanism 1. The tightening mechanism 1 includes a rigid outer skeleton 2 and an arc-shaped support plate 3. The arc-shaped support plate 3 firmly fixes the device on the limb through a tightening belt 4 to ensure that the device will not shift during movement. The rigid outer skeleton 2 is connected to the fixed chassis 6 or the rotating disk sleeve 7, providing stable support. The rotating disk sleeve 7 inside the joint is connected to the fixed chassis 6 through a rotating shaft 8. The angle sensor 9 real-time monitors the rotation angle of the rotating shaft 8 and transmits the data to the control module 25. The fixed chassis 6 outside the joint is connected to the rotating disk sleeve 7 through the main shaft 22. The servo motor 11 drives the main shaft 22 to rotate through the driving gear 12 and the driven gear 13, thereby driving the rotating disk sleeve 7 to move. The clutch mechanism controls the transmission between the main shaft 22 and the driven gear 13 through the cooperation of the inner friction disk 14 and the outer friction disk 15. When the electromagnet ring 21 is energized, it adsorbs the magnetic adsorption ring 20, separating the outer friction disk 15 from the inner friction disk 14 and cutting off the power; when powered off, the spring 19 pushes the outer friction disk 15 towards the inner friction disk 14 and releases it, realizing power transmission.

[0034] The control module 25 sets the rehabilitation training mode through the touch screen 10 according to the joint mobility data fed back by the angle sensor 9. The servo motor 11 drives the rotating disk sleeve 7 to perform movements at different angles and intensities according to the instructions of the control module 25. The touch screen 10 provides an interaction interface, and children can select different training modes through the touch screen. The device can realize personalized rehabilitation training by adjusting the tightness of the tightening belt 4 and the movement parameters of the servo motor 11 according to the child's body type and rehabilitation progress.

[0035] As the core interaction interface of this pediatric surgical multi-functional postoperative rehabilitation exercise device, the touch screen 10 provides an intuitive operation method, allowing users (such as children, parents or rehabilitation therapists) to perform mode switching, intensity adjustment and control of the rotation range. The following are the specific functions realized by the touch screen 10 and its combination with the device working mode: The touch screen 10 allows users to switch between the following three modes to meet the needs of different rehabilitation stages:

[0036] Passive mode: In this mode, the servo motor 11 does not participate in the operation, the clutch mechanism is disengaged, and the power transmission between the main shaft 22 and the driven gear 13 is cut off. Children can move their joints independently, and the device only provides protection and angle monitoring functions. It is suitable for the early postoperative rehabilitation stage when the joints need to be slightly moved to avoid adhesion, but external force should not be applied. The angle sensor 9 monitors the joint range of motion in real time and feeds the data back to the touch screen 10 for rehabilitation therapists or parents to view.

[0037] Resistance mode: In this mode, the servo motor 11 drives in the reverse direction, applying a reverse resistance to the main shaft 22 through the driving gear 12 and the driven gear 13 to increase the difficulty of joint movement. The resistance size can be adjusted through the touch screen 10. It is suitable for the middle stage of rehabilitation when muscle strength and joint stability need to be enhanced. The control module 25 adjusts the output torque of the servo motor 11 according to the resistance parameters set by the touch screen 10, while the angle sensor 9 monitors the range of motion to ensure the safety of training.

[0038] Assistive mode: In this mode, the servo motor 11 drives in the forward direction, applying a forward assist to the main shaft 22 through the driving gear 12 and the driven gear 13 to assist joint movement. The assistive force size can be adjusted through the touch screen 10. It is suitable for children in the late stage of rehabilitation or with weak muscle strength to help them complete a larger range of movements. The control module 25 adjusts the output torque of the servo motor 11 according to the assistive force parameters set by the touch screen 10, while the angle sensor 9 ensures that the range of motion is within a safe range.

[0039] The passive mode, resistance mode, and assistive mode that can be achieved in this embodiment can meet the rehabilitation needs at different postoperative stages, providing comprehensive rehabilitation support from early protection to late strengthening training. And users can adjust the force and rotation range through the touch screen 10 to achieve personalized rehabilitation training, adapting to the child's body shape and rehabilitation progress. The coordinated work of the angle sensor 9 and the control module 25 ensures that the joint movement is within a safe range, avoiding overstretching or injury.

[0040] Embodiment 2: Please refer to Figure 2 、 8 、9, a multifunctional postoperative rehabilitation exercise device for pediatric surgery, which is different from Embodiment 1 in that the length of the rigid outer frame 2 is adjustable. The rigid outer frame 2 includes an inserting strip 26 and a slot 27. The inserting strip 26 is in plug-in fit with the slot 27. Locking holes 28 are equidistantly distributed on the inserting strip 26, and a locking screw 29 is threadedly connected to the slot 27. The rod body of the locking screw 29 is in plug-in fit with the locking hole 28.

[0041] The length of the tightening belt 4 is adjustable.

[0042] A pair of shoulder straps 30 are detachably connected to the tops of the upper rigid outer frames 2.

[0043] Working principle of this embodiment:

[0044] The rigid outer skeleton 2 is composed of an insertion strip 26 and a slot 27, and the insertion strip 26 and the slot 27 are connected by plug-in fit. Lock holes 28 are equidistantly distributed on the insertion strip 26, and a locking screw 29 is provided on the slot 27. By rotating the locking screw 29, its rod body is inserted into the lock hole 28 to fix the relative positions of the insertion strip 26 and the slot 27, thereby realizing the length adjustment of the rigid outer skeleton 2. The tightening belt 4 adopts an adjustable design, and the user can adjust the length of the tightening belt 4 according to the thickness of the child's limb to ensure that the device is firmly fixed and comfortable. A pair of detachable shoulder straps 30 are provided at the top of the upper rigid outer skeleton 2. The shoulder straps 30 are connected to the rigid outer skeleton 2 by means of buckles, etc., and the user can install or remove the shoulder straps 30 according to needs.

[0045] The length adjustment function of the rigid outer skeleton 2 in this embodiment can adapt to children of different ages and body types, ensure that the device fits closely with the limb, and improve the use comfort and stability. The adjustable design of the length of the tightening belt 4 further enhances the fixing effect of the device, avoids displacement or loosening during the rehabilitation training process, and ensures the safety and effectiveness of the training. The detachable connection design of the shoulder straps 30 can share the weight of the device, reduce the limb burden, is especially suitable for long-term wearing, and improves the comfort and cooperation of children.

[0046] Embodiment 3: Please refer to Figures 1 to 9 , a multifunctional postoperative rehabilitation exercise device for pediatric surgery. The difference from Embodiment 1 is that a wireless communication module is mounted on the control module 25, and the control module 25 is signal-connected to an external display device through the wireless communication module. The control module 25 transmits the angle signal of the angle sensor 9 to the external display device, and the external display device visually presents the change of the angle signal through software.

[0047] Working principle of this embodiment:

[0048] A wireless communication module (such as Wi-Fi, Bluetooth, etc.) is mounted on the control module 25, enabling it to establish a wireless signal connection with an external display device (such as a tablet computer, a smart phone or a computer). The control module 25 transmits the joint movement angle signal collected by the angle sensor 9 in real time to the external display device through the wireless communication module. The angle sensor 9 monitors the joint movement angle in real time and transmits the angle signal to the control module 25. The control module 25 sends the angle signal to the external display device through the wireless communication module. The external display device visually presents the change of the angle signal through software, such as real-time displaying the joint movement angle, the movement range, the movement trajectory, etc.

[0049] In addition, on this basis, the external display device converts the joint movement angle signals collected by the angle sensor 9 into dynamic animations or other interesting visual content through software, further enhancing the interactivity with child patients and improving the fun and cooperation of rehabilitation training. The software on the external display device generates dynamic animations synchronized with the joint movement according to the angle signals transmitted in real time by the angle sensor 9. For example, when a child bends the knee joint, the virtual character (such as a cartoon character or an animal) in the animation will also make corresponding movements. The animation content can be designed as a gamified scenario, for example, the virtual character completes specific tasks (such as jumping, running or collecting items), and the child needs to control the actions of the virtual character through joint movement.

[0050] In this embodiment, by converting the angle signals of the angle sensor 9 into dynamic animations and interacting with child patients, the device not only realizes the fun and gamification of rehabilitation training, but also significantly improves the cooperation and training effect of children.

Claims

1. A pediatric surgery multifunctional postoperative rehabilitation exercise device, comprising a rotating connection mechanism (5), characterized in that: The rotating connection mechanism (5) comprises two pairs of fixed chassis (6) and rotating disc sleeves (7) respectively arranged on the inner and outer sides of the joint, the rotating disc sleeve (7) is rotatably connected to the fixed chassis (6), and the fixed chassis (6) and the rotating disc sleeve (7) are both connected to a tightening mechanism (1); The tightening mechanism (1) comprises a hard exoskeleton (2), the hard exoskeleton (2) is fixedly connected to a fixed chassis (6) or a rotating disk sleeve (7), an arc-shaped support plate (3) is provided on the inner side of the hard exoskeleton (2), a tightening belt (4) is connected to the arc-shaped support plate (3), and the inner and outer arc-shaped support plates (3) are tightened on the upper limb or the lower limb through the tightening belt (4); The rotating disc sleeve (7) on the inner side of the joint is rotatably connected to the fixed chassis (6) via a rotating shaft (8), and an angle sensor (9) for sensing the rotation angle of the rotating shaft (8) is installed on the fixed chassis (6); A shaft sleeve (23) is provided at the center of a fixed chassis (6) outside the joint, a main shaft (22) is rotatably connected in the shaft sleeve (23), the main shaft (22) is fixedly connected to a rotating disk sleeve (7), a touch screen (10) is provided on the outer wall of the rotating disk sleeve (7), a control module (25), a battery (24) and a servo motor (11) are provided on the fixed chassis (6), and the battery (24) is a control module (25), a servo motor (11), an angle sensor (9) and a touch screen (10) is powered, the servo motor (11) and the touch screen (10) transmit signals bidirectionally to the control module (25), the angle sensor (9) transmits signals unidirectionally to the control module (25), the output shaft of the servo motor (11) is fixedly connected with a driving gear (12), the main shaft (22) is rotatably connected with a driven gear (13), the driving gear (12) and the driven gear (13) are meshed and installed, and the main shaft (22) and the driven gear (13) are driven by a clutch mechanism.

2. The multifunctional postoperative rehabilitation exercise device for pediatric surgery according to claim 1, characterized in that: The clutch mechanism comprises an inner friction disc (14) and an outer friction disc (15), wherein the inner friction disc (14) is fixedly mounted on the outer side wall of the driven gear (13), a spline (16) is provided on one end of the main shaft (22) extending out of the driven gear (13), and the spline (16) is slidably connected to a keyway (17) at the center of the outer friction disc (15), spring grooves (18) are distributed in an annular array on the outer side wall of the outer friction disc (15), a spring (19) is connected in the spring groove (18), and one end of the spring (19) away from the outer friction disc (15) is connected to the inner side wall of the rotating disc sleeve (7), a magnetic attraction ring (20) is fixedly connected to the outer side wall of the outer friction disc (15), and an electromagnet ring (21) is fixedly connected to the inner side wall of the rotating disc sleeve (7).

3. The multifunctional postoperative rehabilitation exercise device for pediatric surgery according to claim 1, characterized in that: The length of the hard outer frame (2) is adjustable. The hard outer frame (2) comprises an inserting strip (26) and a slot (27). The inserting strip (26) and the slot (27) are plugged together. Locking holes (28) are evenly spaced on the inserting strip (26). A locking screw (29) is threadedly connected to the slot (27). The shaft of the locking screw (29) is plugged together with the locking hole (28).

4. The multifunctional postoperative rehabilitation exercise device for pediatric surgery according to claim 1, characterized in that: The tightening belt (4) is adjustable in length.

5. The multifunctional postoperative rehabilitation exercise device for pediatric surgery according to claim 4, characterized in that: The tops of a pair of hard outer frames (2) on the upper side are detachably connected with shoulder straps (30).

6. The multifunctional postoperative rehabilitation exercise device for pediatric surgery according to claim 1, characterized in that: The control module (25) is equipped with a wireless communication module, and the control module (25) is connected to an external display device signal via the wireless communication module. The control module (25) transmits the angle signal of the angle sensor (9) to the external display device, and the external display device visually presents the angle signal change through software.

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