Auxiliary device for improving hemiplegic side lower limb extorsion
By designing auxiliary equipment such as support plates, guide components and worm gear mechanisms, the comfort issues caused by the difficulty in adjusting the strap position and the fixation of the footrest are solved, and flexible adjustment of the strap position and comfortable support of the foot are achieved, avoiding bruises and external rotation.
Patent Information
- Application Number
- CN202422776388.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The strap position of the existing lower limb external rotation correction device is difficult to adjust, resulting in the patient's lower limbs being restrained in the same position for a long time, which easily causes bruising. In addition, the footrest position is fixed and the comfort is poor.
An auxiliary device including a support plate, a guide assembly, a movable plate, a strap, and a worm gear mechanism was designed. The position of the strap was adjusted by the guide assembly, and the angle of the U-shaped frame was adjusted to adapt to the patient's foot by the worm gear mechanism. Velcro was combined for easy fixation.
The flexible adjustment of the strap position is achieved, which avoids bruising caused by long-term restraint of the same part of the lower limbs and improves the patient's comfort and adaptability of the foot support.
Smart Images

Figure CN223416409U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical auxiliary devices, in particular to an auxiliary device for improving the external rotation of the lower limbs on the hemiplegic side. Background Art
[0002] Hemiplegic patients, especially those with more severe symptoms, will lose many abilities such as movement and need to stay in bed for a long time. During the long-term bed rest, hemiplegic patients cannot adjust their lower limbs independently, which makes hemiplegic patients very prone to external rotation symptoms. External rotation of the lower limbs can easily cause hip dislocation and leave sequelae. Therefore, in the treatment process of hemiplegic patients, not only do they need to take medication for treatment, but they also need to use lower limb external rotation orthosis to correct the problem of external rotation of the lower limbs. However, the existing devices for correcting external rotation generally fix the patient's lower limbs with straps, but the position of the straps is not easy to adjust, which causes the patient's lower limbs to be bound by the straps in the same position for a long time, which can easily cause bruises and other problems. In addition, the footrest of the existing correction device is fixed vertically, which is not convenient for adjustment to the patient's feet and is less comfortable. Utility Model Content
[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an auxiliary device for improving the external rotation of the lower limb on the hemiplegic side. The technical solution to the problem solved by the present invention is to include a support plate, characterized in that a guide assembly is arranged on the support plate, and a plurality of movable plates are slidably connected to the guide assembly, the front end of each movable plate is fixedly connected to a first strap, and the rear end of each movable plate is fixedly connected to a second strap, a mounting slot is opened at the right end of the support plate, the mounting slot is rotatably connected to a longitudinal axis, the longitudinal axis is fixedly connected to the horizontal part of the U-shaped frame, and the vertical part of the U-shaped frame is fixedly connected to a foot support cloth, the front end of the longitudinal axis extends forward from the support plate and is coaxially fixedly connected to a worm gear, the front end of the support plate is fixedly connected to two mounting plates arranged correspondingly on the left and right, the opposite ends of the two mounting plates are rotatably connected to a drive shaft, the drive shaft is coaxially arranged with a worm meshing with the worm gear, the right end of the drive shaft passes through the mounting plate and is coaxially fixedly connected to a dial, and the support plate is fixedly connected to four side plates arranged in a rectangular array.
[0004] Preferably, the guide assembly includes a cavity on the support plate for accommodating the movable plate, and transverse grooves are arranged on the front and rear sides of the cavity on the support plate. The transverse grooves are connected to the cavity, and a transverse axis for sliding connection of the end of the movable plate is fixedly connected in each transverse groove.
[0005] Preferably, sliders are integrally arranged at the front and rear ends of each movable plate, and the movable plate is slidably connected to the transverse axis via the sliders.
[0006] Preferably, each of the first straps is integrally provided with a first Velcro, and each of the second straps is provided with a second Velcro for use in conjunction with the first Velcro.
[0007] The beneficial effects of the utility model are:
[0008] When in use, the present invention provides a guide assembly that facilitates position adjustment of the movable plate, and the first and second straps on the movable plate will also move synchronously therewith, thereby adjusting the position of the straps, facilitating changing the fixed position of the straps on the patient's lower limbs, and preventing bruises caused by long-term restraint of the same part of the patient's lower limbs. Furthermore, the provided worm and worm gear cooperate to change the angle of the U-shaped frame, and the foot support cloth at the upper end of the U-shaped frame will also change the angle accordingly, so that the foot support cloth can adapt to the patient's foot, providing better support for the patient, not only preventing external rotation, but also ensuring foot comfort. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a first-perspective stereoscopic view of the present invention.
[0010] Figure 2 This is an enlarged view of area A in the first perspective stereoscopic view of the present invention.
[0011] Figure 3 This is a three-dimensional cross-sectional view of the utility model from a second perspective.
[0012] Figure 4 It is an enlarged view of area B in the second perspective stereoscopic sectional view of the present invention.
[0013] Figure 5 This is a partial three-dimensional cross-sectional view of the utility model from the third perspective.
[0014] Figure 6 It is a top view of the utility model.
[0015] Reference numerals
[0016] 1. Support plate, 2. Guide assembly, 3. Moving plate, 4. First strap, 5. Second strap, 6. Mounting slot, 7. Longitudinal axis, 8. U-shaped frame, 9. Foot support cloth, 10. Worm gear, 11. Mounting plate, 12. Drive shaft, 13. Worm, 14. Dial, 15. Side plate, 16. Cavity, 17. Horizontal slot, 18. Horizontal axis, 19. Slider, 20. First Velcro, 21. Second Velcro. DETAILED DESCRIPTION
[0017] The following is combined with Figure 1-6 The specific implementation methods of the present invention are further described in detail.
[0018] The technical solution solved by the embodiment is that, in use, the lower limbs of a patient are placed on the support plate 1, and the feet of the patient are in contact with the foot supporting cloth 9, and after adjustment, the first strap 4 and the second strap 5 are used for further fixation. The support plate 1 is further provided with a side plate 15, which greatly increases the contact area of the support plate 1 with the support object below, thereby avoiding the whole application from being turned over and losing the use effect. The provided guide assembly 2 facilitates the position adjustment of the moving plate 3, and then the first strap 4 and the second strap 5 on the moving plate 3 will also move synchronously, thereby the position of the straps can be adjusted, the fixed position of the straps on the lower limbs of the patient can be changed, and bruising of the same part of the lower limbs of the patient can be avoided. Further, the worm 13 cooperates with the worm wheel to change the angle of the U-shaped frame 8, and then the end of the U-shaped frame 8, i.e., the foot supporting cloth 9, will also change the corresponding angle, so that the foot supporting cloth 9 can adapt to the feet of the patient, and better support is provided for the patient. Not only can the external rotation of the patient be avoided, but also the comfort of the feet of the patient can be ensured. In addition, in order to facilitate the fixation of the first strap 4 and the second strap 5, the first magic tape 20 and the second magic tape 21 are provided, which facilitates quick fixation.
[0019] In the embodiment, when the position of the straps needs to be changed, the moving plate is only needed to be pushed to move along the horizontal shaft 18 in the horizontal groove 17. In order to facilitate the movement of the moving plate 3, the sliding block 19 is arranged at the end of the moving plate 3 and is in sliding connection with the horizontal shaft 18, and the cavity 16 is arranged to avoid the interference of the support plate 1 with the movement of the moving plate 3. After the moving plate 3 is moved to a suitable position along the horizontal shaft 18, the lower limbs of the patient are fixed by the first strap 4 and the second strap 5.
[0020] In use, the feet of the patient should be in contact with the U-shaped frame 8 on the U-shaped frame 8, so that the U-shaped frame 8 can provide sufficient support for the feet of the patient. Further, the foot supporting cloth 9 should be made of elastic cloth, so that the wrapping of the foot supporting cloth 9 on the feet of the patient can be ensured, and the stability and comfort of the feet of the patient can be ensured. At the same time, the U-shaped frame 8 can block the two sides of the feet of the patient to a certain extent, so as to avoid the external rotation of the lower limbs of the patient caused by the deviation of the feet of the patient to the two sides. Further, in order to ensure the comfort of the support of the foot supporting cloth 9 on the feet of the patient, the worm 13 and other components are provided. The driving shaft 12, i.e., the worm 13, on the mounting plate 11 is rotated by the dial 14, and then the worm 13 drives the worm wheel 10 to rotate. The longitudinal shaft 7 connected to the mounting groove 6 rotates synchronously, and then the U-shaped frame 8 fixedly connected to the longitudinal shaft 7 also rotates synchronously. Then the U-shaped frame 8 and the foot supporting cloth 9 change the angle, so that the foot supporting cloth 9 can be matched with the feet of the patient to the greatest extent, and the comfort of the patient can be ensured. The worm wheel 10 and the worm 13 have a self-locking effect, and after the angle adjustment of the two, the adjusted posture can be maintained.
Claims
1. An auxiliary device for improving the external rotation of the lower limb on the hemiplegic side, comprising a support plate (1), characterized in that: The support plate (1) is provided with a guide assembly (2), the guide assembly (2) is slidably connected to a plurality of movable plates (3), the front end of each movable plate (3) is fixedly connected to a first strap (4), and the rear end of each movable plate (3) is fixedly connected to a second strap (5), the right end of the support plate (1) is provided with a mounting groove (6), the mounting groove (6) is rotatably connected to a longitudinal axis (7), the longitudinal axis (7) is fixedly connected to the horizontal part of the U-shaped frame (8), the vertical part of the U-shaped frame (8) is fixedly connected to a foot support cloth (9), and the longitudinal axis ( 7) The front end extends forward from a support plate (1) and is coaxially fixedly connected to a worm wheel (10); the front end of the support plate (1) is fixedly connected to two mounting plates (11) arranged in a left-right corresponding manner; the two mounting plates (11) are rotatably connected to opposite ends of a drive shaft (12); the drive shaft (12) is coaxially arranged with a worm (13) meshing with the worm wheel (10); the right end of the drive shaft (12) passes through the mounting plate (11) and is coaxially fixedly connected to a dial (14); the support plate (1) is fixedly connected to four side plates (15) arranged in a rectangular array.
2. The auxiliary device for improving the external rotation of the lower limb on the hemiplegic side according to claim 1, characterized in that: The guide assembly (2) comprises a cavity (16) provided on the support plate (1) for accommodating the movable plate (3), transverse grooves (17) are arranged on both the front and rear sides of the cavity (16) on the support plate (1), the transverse grooves (17) and the cavity (16) are interconnected, and a transverse shaft (18) to which the end of the movable plate (3) is slidably connected is fixedly connected in each transverse groove (17).
3. The auxiliary device for improving the external rotation of the lower limb on the hemiplegic side according to claim 2, characterized in that: Slide blocks (19) are integrally arranged at the front and rear ends of each movable plate (3), and the movable plate (3) is slidably connected to the transverse shaft (18) via the slide blocks (19).
4. The auxiliary device for improving the external rotation of the lower limb on the hemiplegic side according to claim 1, characterized in that: Each of the first binding straps (4) is integrally provided with a first magic tape (20), and each of the second binding straps (5) is provided with a second magic tape (21) for use in conjunction with the first magic tape (20).