Mandibular angle standard positioner with ruler
By designing a standard mandibular angle locator with a ruler, using a 120° angle structure and medical-grade stainless steel, the problem of inaccurate positioning in mandibular angle osteotomy surgery is solved, achieving high-precision marking of the bone cutting line and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-14
AI Technical Summary
Existing mandibular angle locators have problems such as inaccurate positioning and inconvenience in holding them during mandibular angle osteotomy. In particular, the position of the bone cutting line is not accurate enough and it is easy to tilt and swing.
A standard mandibular angle locator with a scale was designed. It adopts a combination structure of a positioning plate, a marking plate and a scale plate with an included angle of 120°. The hook is used for positioning. The scale plate has scale lines. The operating rod is easy to hold and is made of medical-grade stainless steel. It is connected by screws and has an anti-slip sleeve.
It improves the accuracy of the osteotomy line position and the ease of holding the hand, the positioning is more reasonable and reliable, meets aesthetic requirements, adapts to different mandibular bone sizes, and makes the operation simpler and safer.
Smart Images
Figure CN224112667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surgical instrument technology, and in particular to a mandibular angle standard locator with a scale. Background Technology
[0002] Enlarged mandibular angles, commonly known as a "square face," were initially referred to as "benign masseter hypertrophy" in the West. However, in East Asian populations, it is primarily characterized by bony hypertrophy, manifested as posterior protrusion of the mandibular angle bone and lateral outward turning, resulting in an excessively wide lower face, often accompanied by a short chin. With advancements in science and technology and improved living standards, many individuals with enlarged mandibular angles request mandibular angle reduction surgery to improve their facial shape and mandibular angle profile.
[0003] In the process of performing mandibular angle reduction surgery, the first step is to mark the osteotomy lines on the mandible to distinguish the parts to be removed, thus ensuring the operability of the mandibular angle reduction surgery. The applicant previously applied for an adjustable mandibular angle osteotomy line marker (application number: 202320404662X); however, during use, the applicant found the following problems: 1. It does not have a dedicated handheld part, making it inconvenient for medical staff to operate; 2. The mandibular angle hook is used for limiting the position, which can only limit the forward and backward position. In actual surgery, the distal end of the osteotomy plate will tilt and swing, resulting in inaccurate osteotomy line positions.
[0004] Therefore, how to design and manufacture a mandibular angle standard positioner with a ruler that has a simpler and more reasonable structure and more reasonable positioning to improve the accuracy of the bone cutting line position and is more convenient to use by hand has become a technical problem to be solved by those skilled in the art. Utility Model Content
[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is how to design and manufacture a mandibular angle standard positioner with a ruler that has a simpler and more reasonable structural design, more reasonable positioning to improve the accuracy of the bone cutting line position, and is more convenient to use by hand.
[0006] To achieve the above objectives, this utility model provides a mandibular angle standard locator with a scale, including a vertically arranged positioning plate for abutting against the posterior side of the mandible, a marking plate connected to the lower outer side of the positioning plate, the marking plate being abutted against one side surface of the mandible, and the angle formed between the positioning plate and the marking plate being obtuse; a scale plate inclined upward is connected to the marking plate, and a hook is provided at the distal end of the scale plate for hooking onto the front edge of the limb set on the mandible.
[0007] Thus, when using the aforementioned mandibular angle standard locator with a ruler, the entire locator is inserted into the oral cavity. The locating plate is positioned against the posterior side of the mandible for positioning. The hook at the distal end of the ruler plate is then hooked onto the anterior edge of the mandibular proximal limb for further positioning. The marking plate is placed against one side of the mandibular surface, completing the positioning process. The lower edge of the marking plate on the mandibular lateral surface forms the mandibular osteotomy line, completing the marking. This structure allows for better, more reasonable, and more reliable positioning during use, improving the accuracy of the osteotomy line position.
[0008] As an optimization, the angle between the positioning plate and the labeling plate is 120°.
[0009] By setting the angle between the positioning plate and the marking plate to 120°, the angle between the resulting bone cutting line and the posterior side of the mandible becomes more reasonable and aesthetically pleasing.
[0010] As an optimization, the positioning plate, marking plate, and ruler plate are all designed with a long strip structure.
[0011] In this way, the shape design of the positioning plate, label plate, and ruler plate is simpler and more reasonable.
[0012] As an optimization, the positioning plate, labeling plate, and ruler plate are all made of medical-grade stainless steel.
[0013] Thus, the positioning plate, labeling plate, and ruler plate are made of medical-grade stainless steel, making them healthier and safer.
[0014] As an optimization, the positioning plate and the labeling plate are formed as a single piece.
[0015] This makes the structural design simpler and easier to process and manufacture.
[0016] As an optimization, the far end of the ruler plate is bent to form the hook, so that the ruler plate and the hook are integrally formed.
[0017] This design improves the integration of the hook and the ruler plate, making them easier to manufacture.
[0018] As an optimization, the lower end of the scale plate is provided with a long strip-shaped connection hole, and a connecting screw is provided in the connection hole, so that the connecting screw is threaded and set in the threaded hole of the scale plate.
[0019] In this way, the connection between the ruler plate and the marking plate is simpler and more reasonable, and the angle and extension length of the ruler plate can be adjusted, making it more convenient to adapt to different mandibular bone sizes.
[0020] As an improvement, length scale lines are provided on the ruler plate.
[0021] This makes it easier to determine the extension length of the ruler plate, resulting in a more reasonable design.
[0022] As an optimization, an operating rod inclined upwards and outwards is connected and fixed to the outer surface of the far end of the labeling plate, and the far end of the operating rod is covered with a non-slip sleeve made of medical plastic material.
[0023] In this way, by designing the control lever, it becomes more convenient to use by hand.
[0024] As an optimization, the operating lever includes two operating connecting rods arranged at intervals. The lower ends of the operating connecting rods are each connected to a label plate, and the upper ends of the two operating connecting rods are each bent to form a rod bending section. The upper ends of the two rod bending sections are connected together and connected to a connecting block. The operating lever also includes an operating lever connecting section connected to the connecting block, and the anti-slip sleeve is provided at the upper end of the operating lever connecting section.
[0025] In this way, the structural design of the operating rod is simpler and more reasonable, and its connection with the annotation plate is more stable and reliable. In addition, when in use, the two operating connecting rods can push the muscles outside the mandible outward, which makes it easier to make annotations on the lower side of the annotation plate to form osteotomy lines.
[0026] Furthermore, the operating lever is made of medical-grade stainless steel.
[0027] In summary, the above-described mandibular angle standard locator with a scale has the advantages of simpler and more reasonable structural design, more reasonable positioning to improve the accuracy of the bone cutting line position, and more convenient handheld use. Attached Figure Description
[0028] Figure 1 This is a top view schematic diagram of a mandibular angle standard locator with a scale in a specific embodiment of this utility model.
[0029] Figure 2 yes Figure 1 A magnified view of position A in the diagram.
[0030] Figure 3 yes Figure 1 A magnified view of position B in the diagram. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] like Figures 1 to 3 As shown, a standard mandibular angle locator with a scale includes a vertically arranged positioning plate 2 for abutting against the posterior side of the mandible 1, a marking plate 3 connected to the lower outer side of the positioning plate, the marking plate being abutted against one side surface of the mandible, and the angle formed between the positioning plate and the marking plate being obtuse; a scale plate 4 inclined upward is connected to the marking plate, and a hook 5 is provided at the distal end of the scale plate for hooking onto the front edge of the limb set on the mandible.
[0033] Thus, when using the aforementioned mandibular angle standard locator with a ruler, the entire locator is inserted into the oral cavity. The locating plate is positioned against the posterior side of the mandible for positioning. The hook at the distal end of the ruler plate is then hooked onto the anterior edge of the mandibular proximal limb for further positioning. The marking plate is placed against one side of the mandibular surface, completing the positioning process. The lower edge of the marking plate on the mandibular lateral surface forms the mandibular osteotomy line, completing the marking. This structure allows for better, more reasonable, and more reliable positioning during use, improving the accuracy of the osteotomy line position.
[0034] In this specific embodiment, the included angle between the positioning plate and the labeling plate is 120°.
[0035] By setting the angle between the positioning plate and the marking plate to 120°, the angle between the resulting bone cutting line and the posterior side of the mandible becomes more reasonable and aesthetically pleasing.
[0036] In this specific embodiment, the positioning plate, the labeling plate, and the ruler plate are all designed with a long strip structure.
[0037] In this way, the shape design of the positioning plate, label plate, and ruler plate is simpler and more reasonable.
[0038] In this specific embodiment, the positioning plate, the labeling plate, and the ruler plate are all made of medical-grade stainless steel.
[0039] Thus, the positioning plate, labeling plate, and ruler plate are made of medical-grade stainless steel, making them healthier and safer.
[0040] In this specific embodiment, the positioning plate and the labeling plate are integrally formed.
[0041] This makes the structural design simpler and easier to process and manufacture.
[0042] In this specific embodiment, the far end of the ruler plate is bent to form the hook, so that the ruler plate and the hook are integrally formed.
[0043] This design improves the integration of the hook and the ruler plate, making them easier to manufacture.
[0044] In this specific embodiment, the lower end of the scale plate is provided with a long strip-shaped connecting hole 6, and a connecting screw 7 is provided in the connecting hole, and the connecting screw is threadedly connected in the threaded hole of the scale plate.
[0045] In this way, the connection between the ruler plate and the marking plate is simpler and more reasonable, and the angle and extension length of the ruler plate can be adjusted, making it more convenient to adapt to different mandibular bone sizes.
[0046] In this specific embodiment, length scale lines are provided on the scale plate.
[0047] This makes it easier to determine the extension length of the ruler plate, resulting in a more reasonable design.
[0048] In this specific embodiment, an operating rod inclined upwards and outwards is connected and fixed to the outer surface of the distal end of the labeling plate, and a non-slip sleeve made of medical plastic material is fitted on the distal end of the operating rod.
[0049] In this way, by designing the control lever, it becomes more convenient to use by hand.
[0050] In this specific embodiment, the operating lever includes two operating connecting rods 8 arranged at intervals. The lower ends of the operating connecting rods are each connected to a label plate, and the upper ends of the two operating connecting rods are each bent to form a rod bending section 9. The upper ends of the two rod bending sections are connected together and connected to the connecting block 10. The operating lever also includes an operating lever connecting section 11 connected to the connecting block, and the anti-slip sleeve 12 is provided at the upper end of the operating lever connecting section.
[0051] In this way, the structural design of the operating rod is simpler and more reasonable, and its connection with the annotation plate is more stable and reliable. In addition, when in use, the two operating connecting rods can push the muscles outside the mandible outward, which makes it easier to make annotations on the lower side of the annotation plate to form osteotomy lines.
[0052] Furthermore, the operating lever is made of medical-grade stainless steel.
[0053] In summary, the above-described mandibular angle standard locator with a scale has the advantages of simpler and more reasonable structural design, more reasonable positioning to improve the accuracy of the bone cutting line position, and more convenient handheld use.
[0054] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A standard mandibular angle locator with a scale, characterized in that, It includes a vertically set positioning plate for attaching to the posterior side of the mandible, a marking plate connected to the lower outer side of the positioning plate, the marking plate for attaching to one side surface of the mandible, and the angle formed between the positioning plate and the marking plate being an obtuse angle; a scale plate inclined upward is connected to the marking plate, and a hook is provided at the distal end of the scale plate for attaching to the front edge of the prosthesis set on the mandible.
2. The mandibular angle standard locator with a scale as described in claim 1, characterized in that: The angle between the positioning plate and the labeling plate is 120°.
3. A mandibular angle standard locator with a scale as described in claim 1, characterized in that: The positioning plate, label plate, and ruler plate are all designed with a long strip structure.
4. A mandibular angle standard locator with a scale as described in claim 1, characterized in that: The positioning plate, labeling plate, and ruler plate are all made of medical-grade stainless steel.
5. A mandibular angle standard locator with a scale as described in claim 1, characterized in that: The positioning plate and the labeling plate are formed as a single piece.
6. A mandibular angle standard locator with a scale as described in claim 1, characterized in that: The far end of the ruler plate is bent to form the hook, so that the ruler plate and the hook are integrally formed.
7. A mandibular angle standard locator with a scale as described in claim 1, characterized in that: The lower end of the scale plate is provided with a long strip-shaped connection hole, and a connecting screw is provided in the connection hole, with the connecting screw threaded into the threaded hole of the scale plate.
8. A mandibular angle standard locator with a scale as described in claim 1, characterized in that: The ruler plate has length markings.
9. A mandibular angle standard locator with a scale as described in claim 1, characterized in that: An operating lever is fixed to the outer surface of the far end of the labeling plate and is inclined upwards and outwards. The far end of the operating lever is covered with a non-slip sleeve made of medical plastic.
10. A mandibular angle standard locator with a scale as described in claim 9, characterized in that: The operating lever includes two operating connecting rods arranged at intervals. The lower ends of each operating connecting rod are connected to a label plate, and the upper ends of each operating connecting rod are bent to form a rod bending section. The upper ends of the two rod bending sections are connected together and connected to a connecting block. The operating lever also includes an operating lever connecting section connected to the connecting block, and the anti-slip sleeve is provided at the upper end of the operating lever connecting section.