Bone file for osteotomy and grinding of maxillofacial lower jaw
By designing a maxillofacial jaw osteotomy grinding bone file with a regular triangular cross-section and multiple filing surfaces, the problem that traditional bone files are difficult to fit the non-linear lines of the mandible angle is solved, and a simpler and more efficient grinding operation is achieved.
Patent Information
- Application Number
- CN202420970692.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The file head structure of traditional bone files is fixed, making it difficult to fit the non-linear lines of the mandibular angle invasion, resulting in frequent replacement of straight, convex, and concave bone files, which are cumbersome.
Design a maxillofacial jaw osteotomy and polishing bone file. The cross-section of the file head is in a positive triangle shape and has three file surfaces: flat, concave and convex surface. The end surface of the file head is connected by the handle assembly to achieve flexible rotation of the file head and Angle adjustment.
The bone file can select the appropriate file surface according to the mandibular angle of the wound foundation for polishing, making the wound foundation more smooth, without the need to frequently replace different files, simplifying the complexity of operation.
Smart Images
Figure CN222487512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bone files, in particular to a maxillofacial mandibular osteotomy and grinding bone file. Background Art
[0002] Mandibular osteotomy is used to improve the condition of mandibular angle hypertrophy and is a common method of plastic surgery for "square face". A drill is used to perform osteotomy at the mandibular angle along a set curve. There are many burrs on the base after osteotomy, which need to be polished with a bone file to make the linearity of the mandibular angle more beautiful. The file head structure of traditional bone files is fixed. Since the lines of the mandibular angle base are non-linear, in order to fit the lines of the mandibular angle base, the straight, convex, and concave bone files need to be frequently replaced, and the operation is relatively cumbersome. Utility Model Content
[0003] The utility model aims to solve the following problems existing in the prior art: the file head structure of the traditional bone rasp is fixed, and since the line of the mandibular angle base is non-linear, the straight, convex and concave bone rasp needs to be frequently replaced to match the line of the mandibular angle base, which is relatively cumbersome to operate.
[0004] In order to solve the problems existing in the prior art, the utility model provides a maxillofacial mandibular osteotomy and grinding bone file, comprising a file head, the cross section of the file head is an equilateral triangle shape, so that the file head has three file surfaces, and the three file surfaces are respectively a plane surface, a concave surface, and a convex surface;
[0005] A handle assembly is connected to the end surface of the file head.
[0006] Preferably, the file head is in the shape of a triangular prism, so that the cross-sectional size of the file head changes linearly, and the handle assembly is connected to the large end surface of the file head.
[0007] Preferably, the handle assembly comprises a handle and a knife bar connected to each other, and the knife bar is connected to the file head.
[0008] Preferably, the handle is curved.
[0009] Preferably, the front end of the handle has a accommodating cavity, and the accommodating cavity has a triangular block. The tool rod is rotated to penetrate into the accommodating cavity and is fixedly connected to the triangular block. The three surfaces of the triangular block are aligned with the three file surfaces of the file head, and the surface of the handle has a pressing piece that is flat against the triangular block.
[0010] Preferably, the pressing member includes a pressing plate, the surface of the handle has a groove, the front end of the groove extends to the accommodating cavity, the pressing plate is elastically connected in the groove by a spring, the rear end of the pressing plate is rotatably connected to the rear end of the groove, and a planar protrusion is fixed to the front end of the pressing plate, which squeezes and contacts the triangular block.
[0011] Preferably, a torsion portion is provided at one end of the knife rod close to the handle.
[0012] Compared with the related art, the maxillofacial mandibular osteotomy and grinding bone rasp provided by the utility model has the following beneficial effects:
[0013] The file head of the utility model has three file surfaces: a flat surface, a concave surface and a convex surface. The flat surface, the concave surface and the convex surface can be selected for targeted grinding according to the curve of the mandibular angle osteotomy, so that the curve of the osteotomy is smoother, and there is no need to frequently change different files, thereby simplifying the operational complexity of mandibular osteotomy grinding. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the file head of the utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the handle assembly of the utility model;
[0017] Figure 4 This is a schematic diagram of the triangular block structure of the utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the pressing piece of the utility model.
[0019] Numbers in the figure: 1, file head; 2, handle; 21, embedded groove; 22, accommodating chamber; 3, tool rod; 4, pressure plate; 41, flat protrusion; 5, torsion part; 6, triangular block. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0022] like Figure 1 , Figure 2 As shown, a maxillofacial mandibular osteotomy and grinding bone rasp comprises a rasp head 1 and a handle assembly. The cross section of the rasp head 1 is an equilateral triangle shape, so that the rasp head 1 has three rasp surfaces, which are a flat surface, a concave surface, and a convex surface respectively.
[0023] The handheld handle assembly controls the file head 1 to grind the mandibular angle base. According to the curve of the base, the flat surface, concave surface, and convex surface can be selected for targeted grinding to make the curve of the base smoother.
[0024] like Figure 2As shown, the file head 1 is in the shape of a triangular prism, so that the cross-sectional size of the file head 1 changes linearly. The handle assembly is connected to the large end face of the file head 1. The front end size of the file head 1 is small and the rear end size is large. According to the size of the wound gap, different parts of the file head 1 can be adjusted for grinding to adapt to the operating gap.
[0025] like Figure 1 , Figure 3 As shown, the handle assembly includes a handle 2 and a knife bar 3 connected to each other. The knife bar 3 is connected to the file head 1. The operator holds the handle 2 so that the knife bar 3 carries the file head 1 and extends to the base of the mandibular angle. The handle 2 is curved to facilitate the control of the grinding angle of the file head 1.
[0026] like Figure 3 , Figure 4 As shown, the front end of the handle 2 has a receiving cavity 22, and the receiving cavity 22 has a triangular block 6. The arbor 3 rotates and penetrates into the receiving cavity 22 and is fixedly connected to the triangular block 6. The three surfaces of the triangular block 6 are aligned with the three file surfaces of the file head 1.
[0027] like Figure 3 , Figure 5 As shown, the pressing member includes a pressing plate 4, a groove 21 is provided on the surface of the handle 2 along the curved path of the handle 2, the front end of the groove 21 extends to the accommodating cavity 22, the pressing plate 4 is placed in the groove 21, the rear end of the pressing plate 4 is rotatably connected to the rear end of the groove 21, a plane protrusion 41 is fixed to the front end of the pressing plate 4, the plane protrusion 41 presses and contacts the triangular block 6, the middle part of the pressing plate 4 is elastically connected to the groove 21 through a spring, and a torsion portion 5 is provided at one end of the knife rod 3 close to the handle 2;
[0028] Since the handle 2 is curved, the file surface of the file head 1 is adjusted when the handle 2 accurately controls the grinding angle of the file head 1, and the pressure plate 4 is released. The front end of the pressure plate 4 is tilted under the action of elastic force, and the flat protrusion 41 does not contact the triangular block 6. Then the torsional part 5 is twisted by hand to make the arbor 3 drive the triangular block 6 and the file head 1 to rotate. The corresponding file surface of the file head 1 is positioned at the base of the mandibular angle. Then, the pressure plate 4 is pressed while holding the handle 2, and the flat protrusion 41 squeezes the plane of the triangular block 6 to prevent the arbor 3 from rotating and maintain the angle of the file head 1.
Claims
1. A maxillofacial mandibular osteotomy and grinding bone rasp, characterized in that: include: A file head (1), wherein the cross section of the file head (1) is in the shape of an equilateral triangle, so that the file head (1) has three file surfaces, which are respectively a flat surface, a concave surface, and a convex surface; A handle assembly connected to the end surface of the file head (1); The handle assembly comprises a handle (2) and a knife bar (3) connected to each other, and the knife bar (3) is connected to the file head (1); The front end of the handle (2) has a receiving cavity (22), the receiving cavity (22) has a triangular block (6), the knife rod (3) rotates to penetrate into the receiving cavity (22) and is fixedly connected to the triangular block (6), the three surfaces of the triangular block (6) are aligned with the three file surfaces of the file head (1), and the surface of the handle (2) has a pressing piece that is flat against the triangular block (6); The pressing member comprises a pressing plate (4), a surface of the handle (2) having an embedding groove (21), a front end of the embedding groove (21) extending to the accommodating cavity (22), the pressing plate (4) being elastically connected in the embedding groove (21) via a spring, a rear end of the pressing plate (4) being rotatably connected to the rear end of the embedding groove (21), a planar protrusion (41) being fixed at the front end of the pressing plate (4), and the planar protrusion (41) pressingly contacts the triangular block (6).
2. The maxillofacial mandibular osteotomy and grinding bone rasp according to claim 1, characterized in that: The file head (1) is in the shape of a triangular prism, so that the cross-sectional dimensions of the file head (1) vary linearly, and the handle assembly is connected to the large end surface of the file head (1).
3. The maxillofacial mandibular osteotomy and grinding bone rasp according to claim 1, characterized in that: The handle (2) is curved.
4. The maxillofacial mandibular osteotomy and grinding bone rasp according to claim 1, characterized in that: A twisting portion (5) is provided at one end of the knife rod (3) close to the handle (2).