Lower jawbone reduction cutting assembly
By designing arc file and auxiliary file surface structure, the problem that traditional bone files cannot adapt to arcuate mandibles is solved, and high-precision polishing and plasticizing effects of mandible cross-section are achieved.
Patent Information
- Application Number
- CN202421655016.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-13
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-13
AI Technical Summary
When grinding the mandible, traditional bone file tools cannot effectively adapt to the arc cross-section, resulting in unnecessary bone tissue loss and insufficient plastic surgery accuracy.
A arc-extended file is designed with an arc-shaped concave main file surface and an auxiliary file surface with an arc-shaped convex raised portion. Combined with the grip, it is adapted to the arc-shaped cross-section of the mandible bone to improve grinding accuracy and efficiency.
The high-precision fitting preoperative design of mandible cross-section polishing is achieved, reducing bone tissue loss and improving plastic surgery efficiency and accuracy.
Smart Images
Figure CN223126598U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of maxillofacial plastic appliances, in particular to a mandibular reduction cutting assembly. Background Technique
[0002] A bone file is an indispensable tool for maxillofacial mandibular cutting and plastic surgery. After the mandibular angle bone is removed by an osteotome saw, a bone file is needed to reduce and trim the cross-section so that the contour of the mandible reaches the radian accuracy designed before the operation. Traditionally, a round-head bone file or a flat bone file is used to polish and trim the mandibular cross-section. Since the contour of the mandible is arc-shaped, the round-head and flat file surfaces do not match the arc-shaped osteotomy surface, and unnecessary bone tissue loss will occur during the polishing and trimming process. Content of the Utility Model
[0003] The purpose of the utility model is to provide a mandibular reduction cutting assembly for adapting to the arc-shaped mandibular cross-section for grinding and reduction trimming to improve the plastic reduction accuracy.
[0004] To solve the problems existing in the prior art, the technical solution of the utility model is as follows:
[0005] A mandibular reduction cutting assembly includes a file plate. The file plate is a plate body extending in an arc shape, and the arc-shaped concave surface of the file plate is set as the main file surface;
[0006] An auxiliary file surface. The arc-shaped convex surface part of the file plate has an arc-shaped convex part, and the surface of the convex part is set as the auxiliary file surface;
[0007] A handle, and the handle is connected to the file plate.
[0008] Preferably, both sides of the file plate are arc edges, and both sides of the main file surface cover the arc edges and extend to the edges of the arc-shaped convex surface of the file plate.
[0009] Preferably, an extension handle is fixed at one end of the file plate, and the extension handle is threadedly connected to the handle.
[0010] Preferably, one end of the handle has a bent part, and the extension handle is threadedly connected to the end of the bent part.
[0011] Preferably, the bending angle of the bent part is 135°-150°.
[0012] Preferably, the surface of the end of the file plate away from the extension handle is an arc-shaped smooth surface and rounded corners are provided on both sides.
[0013] Preferably, the maximum convex thickness of the convex part on the arc-shaped convex surface of the file plate is not greater than the thickness of the file plate.
[0014] Compared with the related art, the utility model has the following beneficial effects:
[0015] 1. The present utility model provides an arc-shaped main filing surface on the concave part of the arc-shaped filing plate. The main filing surface has a curvature adapted to the bone cross-section of the mandibular angle, enabling a more perfect grinding joint surface, thereby improving the grinding accuracy and making the bone cross-section line of the mandibular angle more conform to the pre-operative design line.
[0016] 2. The present utility model provides a raised auxiliary filing surface on the arc-shaped convex surface of the filing plate, which is used for targeted grinding of the parts of the mandible with large deviations, and can improve the grinding and shaping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0018] Figure 2 It is a schematic diagram of the split structure of the filing plate and the handle of the present utility model.
[0019] Figure 3 It is a schematic diagram of the structure of the filing plate of the present utility model.
[0020] Reference numerals: 1, filing plate; 2, extension handle; 3, handle; 31, bending part; 4, auxiliary filing surface. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0022] As Figure 1 shown, the mandible reduction cutting assembly is composed of a filing plate 1 and a handle 3 connected;
[0023] As Figure 1 , Figure 3 shown, the filing plate 1 is made of stainless steel or titanium alloy material. The bending structure of the filing plate 1 is formed by bending a flat plate. The arc-shaped concave surface of the filing plate 1 is processed into a main filing surface. The arc-shaped convex surface of the filing plate 1 has an arc-shaped raised part near the top. The maximum raised thickness of the raised part is not greater than the thickness of the filing plate 1, and the surface of the raised part is processed into an auxiliary filing surface 4;
[0024] As Figure 2 shown, the main body of the handle 3 is a cylinder with a large end and a small end, and rough lines are provided on the surface of the handle 3 to increase the holding stability. The small end of the handle 3 is bent 135° - 150° to form a bending part 31. A threaded hole is provided at the end of the bending part 31. The end of the filing plate 1 is integrally fixed with a cylindrical extension handle 2. The end of the extension handle 2 has a threaded column, and the threaded column is connected to the threaded hole to fix the filing plate 1 and the handle 3 together;
[0025] The mandibular cross-section plastic surgery approach is located inside the oral cavity, and a hook is used to expand the approach incision. The handle 3 is held to insert the file plate 1 from the incision to the bone cross-section. The curved main file surface fits the curved bone cross-section for grinding and trimming, making the curvature of the trimmed bone cross-section more perfect, and the surface grinding accuracy is high, making the plastic surgery curve line closer to the preoperative design line.
[0026] Since the file plate 1 is inserted into the osteotomy part laterally, the setting of the curved portion 31 allows the hand-held handle 3 to be away from the face when grinding the bone section, making it easier to operate the file plate 1 to perform the grinding work.
[0027] The extension handle 2 is connected to the curved portion 31 by threaded connection, so that the file plate 1 and the handle 3 can be independently disassembled, which is convenient for independent maintenance and replacement in the later stage. The handle 3 can also be adapted for use with file plates 1 of different specifications.
[0028] The auxiliary file surface 4 is arranged on the surface of the raised part for concentrated grinding of the bone cross-section with large size deviation, and cooperates with the main file surface for large-scale uniform grinding to improve the accuracy of bone cross-section shaping.
[0029] The two side edges of the file plate 1 are arc edges, and the arc edges on both sides of the main file surface extend to the edge of the arc convex surface of the file plate 1, so that the two sides of the file plate 1 have a bone grinding effect. The file plate 1 can be translated along the bone cross section during the grinding process, making the grinding and shaping of the entire bone cross section smoother.
[0030] The surface of one end of the file plate 1 away from the extension handle 2 is an arc-shaped smooth surface, and rounded corners are provided on both sides to prevent the end of the file plate 1 from causing secondary scratches to the tissue in the incision during the bone grinding process.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A mandibular reduction cutting assembly, characterized in that, Comprising: A file plate, the file plate is a plate body extending in an arc shape, and the arc concave surface of the file plate is set as the main file surface; An auxiliary file surface, the arc convex surface part of the file plate has an arc-shaped protruding part, and the surface of the protruding part is set as the auxiliary file surface; A handle, the handle is connected to the file plate; Both sides of the file plate are arc edges, and both sides of the main file surface cover the arc edges and extend to the edges of the arc convex surface of the file plate.
2. The mandible reduction cutting assembly according to claim 1, wherein, One end of the file plate is fixed with an extension handle, and the extension handle is threadedly connected to the handle.
3. The mandibular reduction cutting assembly according to claim 2, wherein, One end of the handle has a bent part, and the extension handle is threadedly connected to the end of the bent part.
4. The mandibular reduction cutting assembly according to claim 3, wherein, The bending angle of the bent part is 135° - 150°.
5. The mandible reduction cutting assembly according to claim 2, wherein, The surface of the end of the file plate away from the extension handle is an arc-shaped smooth surface and is provided with rounded corners on both sides.
6. The mandibular reduction cutting assembly according to claim 1, characterized in that The maximum protruding thickness of the protruding part on the arc convex surface of the file plate is not greater than the thickness of the file plate.