Positioning buckle clamp for hallux valgus
By designing positioning buckles for valgus with oval notches and serrated vagus, combined with 45° positioning holes and hook-protruding structures, the problem of being difficult to accurately move the distal part of the first metatarsal osteotomy line in the prior art is solved. The stable clamping and accurate positioning of the first metatarsal bone are achieved, and the correction effect is improved.
Patent Information
- Application Number
- CN202420267002.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-04
AI Technical Summary
The prior art is difficult to accurately move the distal part of the first metatarsal osteotomy line outward, resulting in poor effect of correcting the adductal of the first metatarsal.
A positioning buckle pliers for valgus are designed, using an elliptical notch and serrated design, combining a 45° positioning hole and a hook-protruding structure to achieve stable clamping and accurate positioning of the first metatarsal bone.
Through the design of serrated elliptical notches and positioning holes, the circular bone can be stably clamped, avoiding misaligned movement, and improving the accuracy and firmness of correcting the adduction of the first metatarsal.
Smart Images
Figure CN222467057U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical tools. Background Art
[0002] Hallux valgus is a common foot deformity. Not only does the foot of hallux valgus patients look unsightly, but when the degree of hallux valgus worsens, it will affect the normal function of the patient's foot, causing great inconvenience to the patient in wearing shoes and daily life. There are many treatment methods for hallux valgus, such as metatarso-cuneiform joint fusion, proximal metatarsal osteotomy, metatarsal osteotomy, and distal metatarsal osteotomy. These procedures are effective in correcting moderate to severe hallux valgus deformity. Minimally invasive osteotomy for the treatment of mild to moderate hallux valgus deformity is favored by patients both at home and abroad.
[0003] Whether it is minimally invasive osteotomy, proximal / distal / shaft metatarsal osteotomy, or metatarsocuneiform joint fusion, the distal part of the first metatarsal osteotomy line needs to be moved outward. However, currently surgeons mostly use the thumb to push the metatarsal head outward, which makes it difficult to completely correct the adduction of the first metatarsal, and the amount of displacement is also difficult to control. How to accurately push the distal part of the first metatarsal osteotomy line outward is crucial to correcting the adduction of the first metatarsal. Utility Model Content
[0004] The technical problem to be solved by the utility model is: how to provide a buckle pliers for hallux valgus that can accurately locate.
[0005] The technical solution adopted by the utility model is: a positioning buckle pliers for hallux valgus, comprising a left pliers leg 1 and a right pliers leg 2 connected by a rotating shaft, when the positioning buckle pliers for hallux valgus are closed, an elliptical notch 3 is provided on the front side of the positioning buckle pliers for hallux valgus, a positioning hole 4 is provided above the notch 3, and a projection distance of the positioning hole 4 on the long axis of the notch 3 from the end of the positioning buckle pliers for hallux valgus is 1 / 4 of the length of the long axis.
[0006] The positioning hole 4 is located on the left pliers leg 1 or the right pliers leg 2, and the angle between the positioning hole 4 and the plane where the positioning hole mouth is located is 45°. The positioning hole 4 and the central plane of the positioning buckle pliers for hallux valgus form an angle of 45°.
[0007] The outer end of the notch 3 is provided with a hook 5 formed by the left pliers leg 1 and the right pliers leg 2 .
[0008] The hook protrusion 5 includes an upper triangular piece protrusion on the left pliers leg 1 and a lower triangular piece protrusion on the right pliers leg 2. The corresponding surfaces of the upper triangular piece protrusion and the lower triangular piece protrusion are inclined surfaces. When the hallux valgus positioning buckle pliers are closed, the upper triangular piece protrusion is overlapped on the lower triangular piece protrusion.
[0009] There are serrations on the upper triangular piece protrusion and the lower triangular protrusion.
[0010] The oval notch 3 has serrations.
[0011] The beneficial effects of the utility model are as follows: the utility model adopts an elliptical notch with serrations for clamping, which can stably clamp round bones and avoid dislocation and movement to harm patients. In addition, the utility model can be accurately positioned through the positioning hole, solving the problem of difficult positioning. At the same time, the hook convex can effectively hook, making the positioning more accurate.
[0012] Traditional buckle forceps have a straight distal head with a hook (hook convex) for holding bones during surgery. After hallux valgus osteotomy, the distal end of the metatarsal bone is cylindrical, which cannot hold the bone firmly for easy fixation.
[0013] The utility model designs the distal end (the front side of the positioning buckle clamp for hallux valgus) into an arc shape (oval shape) with a hook at the distal end. At the same time, in order to facilitate intraoperative fixation, a 45° oblique positioning hole is set at one quarter of the arc distal end of the utility model (the left buckle clamp is from the upper right to the lower left; the right buckle clamp is from the upper left to the lower right), and the screw guide pin can enter from this hole to directly fix the distal end of the osteotomy. This design holds the bone firmly, increases the accuracy of the screw fixation direction, and shortens the operation time. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 Schematic diagram of the left clamp leg in the embodiment;
[0016] Among them, 1. left clamp leg, 2. right clamp leg, 3. notch, 4. positioning hole, 5. hook. DETAILED DESCRIPTION
[0017] like Figure 1 and 2 As shown, the utility model is a positioning buckle pliers for hallux valgus, comprising a left pliers leg 1 and a right pliers leg 2 connected by a rotating shaft. The tails of the left pliers leg 1 and the right pliers leg 2 are hand-held ends, and the heads of the left pliers leg 1 and the right pliers leg 2 are clamping ends. When the positioning buckle pliers for hallux valgus are closed, there is an elliptical notch 3 on the front side of the positioning buckle pliers for hallux valgus. There are serrations on the elliptical notch 3. The serrations on the left pliers leg 1 correspond to the serrations on the right pliers leg 2 in concave and convex manner. During the clamping process, the corresponding upper and lower serrations can effectively maintain the clamping stability. In one embodiment, the long axis length of the elliptical notch 3 is 2 cm, and the short axis length is 0.5 cm.
[0018] There is a positioning hole 4 above the notch 3, and the projection distance of the positioning hole 4 on the long axis of the notch 3 to the end of the positioning buckle pliers for hallux valgus is 1 / 4 of the long axis length. In one embodiment, the diameter of the positioning hole 4 is 1 mm.
[0019] The positioning hole 4 is located on the left pliers leg 1 or the right pliers leg 2, and the angle between the positioning hole 4 and the plane where the positioning hole mouth is located is 45°, and the positioning hole 4 forms an angle of 45° with the central plane of the positioning buckle pliers for hallux valgus. The central plane of the positioning buckle pliers for hallux valgus refers to the symmetric central plane of the positioning buckle pliers for hallux valgus (when the hook and the positioning hole 4 are not considered, the positioning buckle pliers for hallux valgus are a plane-symmetrical structure).
[0020] The outer end of the notch 3 is provided with a hook 5 formed by the left pliers leg 1 and the right pliers leg 2 .
[0021] The hook protrusion 5 includes an upper triangular piece protrusion on the left pliers leg 1 and a lower triangular piece protrusion on the right pliers leg 2. The corresponding surfaces of the upper triangular piece protrusion and the lower triangular piece protrusion are inclined surfaces. When the hallux valgus positioning buckle pliers are closed, the upper triangular piece protrusion is overlapped on the lower triangular piece protrusion.
[0022] There are serrations on the upper triangular piece protrusion and the lower triangular protrusion.
Claims
1. A positioning buckle pliers for hallux valgus, comprising a left pliers leg (1) and a right pliers leg (2) connected by a rotating shaft, characterized in that: When the positioning buckle pliers for hallux valgus are closed, an elliptical notch (3) is provided on the front side of the positioning buckle pliers for hallux valgus, a positioning hole (4) is provided above the notch (3), and the projection distance of the positioning hole (4) on the long axis of the notch (3) to the end of the positioning buckle pliers for hallux valgus is 1 / 4 of the length of the long axis.
2. The positioning buckle pliers for hallux valgus according to claim 1, characterized in that: The positioning hole (4) is located on the left pliers leg (1) or the right pliers leg (2), the angle between the positioning hole (4) and the plane where the positioning hole mouth is located is 45°, and the positioning hole (4) forms an angle of 45° with the central plane of the hallux valgus positioning buckle pliers.
3. The positioning buckle pliers for hallux valgus according to claim 1, characterized in that: The outer end of the notch (3) has a hook protrusion (5) formed by the left clamp leg (1) and the right clamp leg (2).
4. The positioning buckle pliers for hallux valgus according to claim 3, characterized in that: The hook protrusion (5) comprises an upper triangular piece protrusion on the left pliers leg (1) and a lower triangular piece protrusion on the right pliers leg (2), the corresponding surfaces of the upper triangular piece protrusion and the lower triangular piece protrusion are inclined surfaces, and when the hallux valgus positioning buckle pliers are closed, the upper triangular piece protrusion is superimposed on the lower triangular piece protrusion.
5. The positioning buckle pliers for hallux valgus according to claim 4, characterized in that: There are serrations on the upper triangular piece protrusion and the lower triangular protrusion.
6. The positioning buckle pliers for hallux valgus according to claim 1, characterized in that: The oval notch (3) is provided with serrations.