Correcting and maintaining device for hallux valgus
By designing a combination of flipping components, mating parts, a rotary delivery cylinder, and bidirectional needles, the manufacturing and assembly of the orthosis are simplified, enabling rapid and effective correction of hallux valgus and reducing the risk of trauma and displacement.
Patent Information
- Application Number
- CN202422555062.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Existing orthotic devices for correcting hallux valgus have complex structures, leading to cumbersome manufacturing and assembly processes.
A corrective maintenance device was designed, comprising a flipping component, a mating assembly, a rotary delivery cylinder, and a bidirectional needle. The flipping component is used to pry open the metatarsal bone, the mating assembly is used for limiting the position, and the rotary delivery cylinder and bidirectional needle are used to insert into the metatarsal head for correction. The corrective effect is achieved through simple combination and assembly.
It simplifies the fabrication and assembly process of the orthodontic appliance, resulting in less trauma, faster surgery, prevention of displacement of the metatarsal head and trunk, and ensures the orthodontic effect, providing a simple and optimized orthodontic solution.
Smart Images
Figure CN223614910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an auxiliary corrective and maintenance device for correcting hallux valgus. Background Technology
[0002] Hallux valgus is a common human defect that can greatly affect daily life if left uncorrected. There are currently several ways to improve this defect. Utility Model Content
[0003] The purpose of this invention is to provide a corrective and protective device for hallux valgus. The technical problem to be solved is to provide a simple and optimized orthopedic device.
[0004] A corrective and maintenance device for hallux valgus includes a flipping component, a mating assembly, a rotary feeding cylinder, and a bidirectional needle. The flipping component has an inlet end at one end and a sliding end on each side of its extending edge. The flipping component has an internal movable hole. The mating assembly includes a limiting plate and a retaining elastic buckle. Both ends of the limiting plate match the sliding ends in the same positions. One end of the retaining elastic buckle abuts against the inner wall of the limiting plate, and the other end abuts against the outer wall of the flipping component. The rotary feeding cylinder has internal threads, and both ends of the bidirectional needle have external threads. One end of the bidirectional needle is screwed into one end of the rotary feeding cylinder. The bidirectional needle passes through the movable hole and mates with the limiting plate.
[0005] The inlet end is either straight or curved.
[0006] One side of the sliding end on both sides is formed into a bent L-shaped structure.
[0007] The retaining elastic buckle has a W-shaped structure.
[0008] The retaining elastic buckle is fixed to the movement limiting plate at its middle position by screws.
[0009] The middle of the two sliding ends is the connecting end.
[0010] The diameter of the movable hole corresponds to the outer diameter of the bidirectional needle.
[0011] The inlet end has multiple hooks.
[0012] The beneficial effects of this utility model are: the matching components, rotary feeding cylinder, and bidirectional needle of this utility model can all be purchased directly from the market, and the flipping parts can also be purchased directly from the market and then simply processed, thereby simplifying the entire manufacturing and assembly process of the orthodontic device, and its structure is also relatively simple. Attached Figure Description
[0013] Figure 1 This is an exploded view of the orthopedic device;
[0014] Figure 2 yes Figure 1 A schematic diagram of the components used in the orthodontic maintenance device;
[0015] Figure 3 This is a schematic diagram of a bidirectional needle or Kirschner insertion needle being inserted into the metatarsal bone;
[0016] Figure 4 This is a diagram illustrating the correction process;
[0017] In the picture
[0018] 1. Flip-over component; 11. Inlet end; 12. Sliding end; 13. Connecting end; 131. Movable hole; 14. Hook;
[0019] 2. Matching components; 21. Movement limiting plate; 211. Groove; 212. Longitudinal end; 22. Retaining elastic buckle;
[0020] 3. Rotary feeder,
[0021] 4. Two-way needle
[0022] 5. Metatarsal skull, 51. Metatarsal shaft, 52. Metatarsal head,
[0023] 6. Kirschner insertion needle,
[0024] 7. Toe bones. Detailed Implementation
[0025] Please refer to Figure 1-4 A hallux valgus correction and maintenance device is mainly designed with a flipping component 1, a mating assembly 2, a rotary delivery cylinder 3, and a bidirectional needle 4. The flipping component 1 is inserted into the metatarsal shaft 51 of the metatarsal bone 5 and pried towards the metatarsal head 52, thereby correcting the HVA angle. The mating assembly 2 is used to limit and stop the rotary delivery cylinder 3 and the bidirectional needle 4, preventing them from returning to their original position. The rotary delivery cylinder 3 and the bidirectional needle 4 are inserted into the metatarsal head 52 to complete the correction of the DMAA angle. Furthermore, the above components can be further optimized.
[0026] The flipper 1 in the figure is a plate-like structure. An inlet end 11 is designed at its end facing the metatarsal 51 for easy insertion. This inlet end 11 can be designed as a pointed structure for easy insertion or a curved plate structure for easy tilting. Multiple hooks 14 are designed on the bottom surface to prevent the flipper 1 from being pushed back during use. The pointed end 14 gradually transitions to the sliding end 12 for better insertion. The flipper 1 also has sliding ends 12 on both sides of its extended edge, similar to a profile. One of the sliding ends 12 has a bent L-shaped structure. Between the two sliding ends 12 is a connecting end 13, which has a movable hole 131 in the middle along the extended direction to facilitate insertion with the subsequent bidirectional needle 4. In application, the details of the flipper 1 can be further optimized, and the structure of the flipper 1 can be manufactured according to existing processes.
[0027] The mating component 2 in the figure features a limiting plate 21 and a retaining elastic buckle 22. The limiting plate 21 is a flat plate structure with bent ends, as shown in the figure. Both ends of the limiting plate are bent towards the flipping component 1, with one end forming a Z-shape, thus creating a slot 211. The retaining elastic buckle 22 can be placed in the slot 211 and installed within it with screws. The flat longitudinal end 212 of the limiting plate 21 fits against the flat end of the flipping component 1, and the other end of the flipping component 1 is inserted into the slot 211 at the other end of the limiting plate 21. The retaining elastic buckle 22 adopts a W-shaped structure. The top of the W-shape abuts against the inner wall of the limiting plate 21, and the bottom of the W-shape abuts against the outer wall of the flipping component 1. This elasticity maintains the relative fixation between the limiting plate 21 and the flipping component 1. Simultaneously, the retaining elastic buckle 22 can be installed on the limiting plate with screws at its middle position. In application, the local details of the aforementioned limiting plate 21 and retaining elastic buckle 22 can be further optimized.
[0028] The rotary feeder 3 in the figure is a hollow cylindrical structure with internal threads inside. The bidirectional needle 4 is also a cylindrical structure with external threads at both ends. This facilitates screwing it into the rotary feeder 3 and inserting it into the toe 52. By screwing it into the internal threads of the rotary feeder 3, the bidirectional needle 4 can move up and down by rotating the rotary feeder 3, thereby adjusting the position of the toe 52.
[0029] In this case, the outer diameter of the bidirectional needle 4 is consistent with the diameter of the movable hole 131 in the flipper 1. In this way, when the bidirectional needle 4 passes through the movable hole 131 and engages with the foot 52, the bidirectional needle 4 can be fixed and limited.
[0030] The usage method and working principle of this orthodontic device are as follows:
[0031] The Kirschner insertion needle 6 and the bidirectional needle 4 are inserted into the metatarsal bone 5 at specific angles according to the treatment situation. The metatarsal bone 5 is then fractured, resulting in a metatarsal shaft 51 and a metatarsal head 52. The metatarsal head 52 is located externally. Thus, the Kirschner insertion needle 6 is positioned within the metatarsal shaft 51, while the bidirectional needle 4 remains within the metatarsal head 52. The phalanx 7 is located externally to the metatarsal head 52. Rotating the delivery cylinder 3 causes the position of the bidirectional needle 4 to change, thereby lifting the metatarsal head 52 as shown in the diagram to correct the DMAA angle. To prevent the bidirectional needle 4 from retracting and causing further changes in the DMAA angle, a limit plate 21 can be used at the stop of the bidirectional needle 4. The limiting plate 21 contains a retaining elastic buckle 22. When the limiting plate 21 is pressed, the retaining elastic buckle 22 deforms, creating a gap between the limiting plate 21 and the flipping member 1, allowing them to move. After the limiting plate 21 is released, the retaining elastic buckle 22 returns to its original deformation, maintaining the original fixed relationship between the limiting plate 21 and the flipping member 1. At this time, the flipping member 1 is inserted into the metatarsal 51 and pried in the direction shown in the figure to correct the HVA angle. Finally, the Kirschner insertion pin 6 is driven in again to fix the metatarsal 51 and the metatarsal head 52 together.
[0032] Through the above operation, intraoperative fluoroscopy is convenient, the trauma is small, the operation is fast, and it can prevent the metatarsal head 52 and metatarsal shaft 51 from shifting vertically after osteotomy, ensuring that the metatarsal head 52 and metatarsal shaft 51 are in a straight line, preventing fracture deformity, thus adding another easy-to-maintain corrective device to the existing method.
Claims
1. A corrective and protective device for hallux valgus, characterized in that: The assembly includes a flipper (1), a mating component (2), a rotary feeder (3), and a bidirectional needle (4). The flipper (1) has an inlet end (11) at one end and a sliding end (12) on each side of its extending edge. The flipper (1) has a movable hole (131) inside. The mating component (2) includes a limiting plate (21) and a retaining elastic buckle (22). The two ends of the limiting plate (21) match the sliding end (12) at the same position. One end of the retaining elastic buckle (22) abuts against the inner wall of the limiting plate (21), and the other end abuts against the outer wall of the flipper (1). The rotary feeder (3) has an internal thread, and both ends of the bidirectional needle (4) have external threads. One end of the bidirectional needle (4) is screwed into one end of the rotary feeder (3). The bidirectional needle (4) is inserted into the movable hole (131) and mats with the limiting plate (21). The inlet end (11) is either straight or curved. One side of the sliding end (12) on both sides is formed into a bent L-shaped structure; The retaining elastic buckle (22) has a W-shaped structure.
2. The orthopedic device for hallux valgus according to claim 1, characterized in that: The retaining elastic buckle (22) is fixed to the limiting plate (21) by screws at the middle position.
3. The orthopedic and protective device for hallux valgus according to claim 2, characterized in that: The middle part of the two sliding ends (12) is the connecting end (13).
4. The orthopedic and protective device for hallux valgus according to claim 3, characterized in that: The diameter of the movable hole (131) corresponds to the outer diameter of the bidirectional needle (4).