A stable positioning periodontal splint assembly

By setting fixed steel wire, a special-shaped steel wire frame, mounting head and arc plate in the periodontal ply, the multi-dimensional direction fastening structure is formed by using the straightening effect of the arc plate, which solves the problem of offset or loosening of the existing periodontal ply fixing structure under complex chewing action, and achieves a more stable tooth fixing effect.

CN119770217APending Publication Date: 2025-04-08BEIJING STOMATOLOGY HOSPITAL CAPITAL MEDICAL UNIV
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Patent Information

Application Number
CN202411786901.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

The fixing method of existing periodontal splints is easy to deviate or loosen when dealing with complex chewing movements, which affects the fixing effect of loose teeth.

Method used

By setting up fixed steel wire, special-shaped steel wire frame, mounting head and arc plate, the mounting head is used to drive the installation head to promote the expansion of the special-shaped steel wire frame, forming a complex fastening structure in multi-dimensional directions and enhancing the fixing firmness of the teeth.

Benefits of technology

It effectively avoids the offset or loosening of the fixed structure under complex chewing movements, improves the fixing stability of the loose teeth and the resistance of the overall structure, and improves the practicality and safety of the device.

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Abstract

The present invention discloses a stable positioning periodontal splint assembly, including a fixed steel wire, one side of which is fixedly connected to a special-shaped steel wire frame, the special-shaped steel wire frame is rhombus-shaped as a whole, a mounting head is fixedly installed at both upper and lower ends of the symmetrical inner angles of the special-shaped steel wire frame, an arc plate is installed on the side of the mounting head, one side of the mounting head is provided with a plane adapted to the arc plate, and one side of the arc plate is detachably inlaid with a fixing seat. The present invention arranges a fixed steel wire, a special-shaped steel wire frame, a mounting head and an arc plate, and utilizes the arc plate to drive its two mounting heads in the process of gradually straightening, and synchronously pushes and expands the inner side of the special-shaped steel wire frame from the upper and lower ends, respectively, so as to wrap and bind the loose teeth and the healthy teeth on both sides, ensure that the loose teeth and the normal teeth on both sides form a firm overall chewing unit, and increase the firmness of the overall structure in dealing with complex chewing movements.
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Description

Technical Field

[0001] The present invention relates to the technical field of dental treatment, and more particularly to a firmly positioned periodontal splint assembly. Background Art

[0002] A periodontal splint is an appliance for treating and fixing loose teeth. It connects two or more teeth that have become loose due to periodontitis, or fixes loose teeth while repairing missing teeth. It connects multiple loose teeth together, or fixes loose teeth to another strong healthy tooth to form a new chewing unit and improve the patient's chewing function. Periodontal splints are an important method for restorative treatment of periodontitis and are also a necessary measure. Currently, most people use dental floss, nylon thread, soft and fine stainless steel wire, etc. as the ligature material for periodontal splints to fix most loose teeth to adjacent healthy abutment teeth as a fixation method.

[0003] The ligature material of the current ligature fixation method is generally fixed around the teeth in a circle, so that its force is transversely perpendicular to the teeth themselves, thereby fixing multiple teeth together. However, due to the particularity of the human oral structure, the chewing action is a complex reflex action composed of sequential contraction of various chewing muscles. The contraction of each group of muscles can move the mandible upward, downward, left and right, and forward, so that the upper and lower teeth are in contact with each other, generating great pressure to grind food. The chewing movement forms include: opening and closing, front and back, and lateral three basic movements and comprehensive movements. The current ligature method that wraps around the teeth and performs transverse fixation has a single fixing direction for the teeth. In response to complex chewing movements, the fixing structure is very easy to deviate to both sides, resulting in overall deformation or loosening, which ultimately affects the limiting fixing effect of the fixing structure on the loose teeth. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a stable positioning periodontal splint assembly, which is provided with a fixing steel wire, a special-shaped steel wire frame, a mounting head and an arc plate. The arc plate can drive its two mounting heads in the process of gradually straightening, and simultaneously push and expand the inner side of the special-shaped steel wire frame from the upper and lower ends respectively, so that the special-shaped steel wire frame as a whole can be effectively tightened and pulled apart, thereby wrapping and binding the loose teeth and the healthy teeth on both sides to ensure that the loose teeth and the normal teeth on both sides form an effective and firm overall chewing unit, increase the resistance of the overall structure after fixation to complex chewing movements, further improve the practicality and safety of the device, and solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stable positioning periodontal splint assembly, comprising a fixed steel wire, one side of the fixed steel wire is fixedly connected to a special-shaped steel wire frame, the special-shaped steel wire frame is rhombus-shaped as a whole, a mounting head is fixedly mounted on both upper and lower ends of the symmetrical inner angles of the special-shaped steel wire frame, an arc-shaped plate is commonly mounted on the side of the mounting head, one side of the mounting head is provided with a plane adapted to the arc-shaped plate, one side of the arc-shaped plate is detachably inlaid with a fixing seat, the outer side of the fixing seat is provided with an embedding groove, and a pair of flexible limiting protrusions are symmetrically arranged at both ends of the embedding groove;

[0006] The left and right ends of the mounting head are both provided with rounded corners;

[0007] The horizontal height of the special-shaped steel wire rack is greater than its horizontal length, the mounting head is in a V-shape as a whole, and the inner corner of the special-shaped steel wire rack is in fixed contact with the top of the mounting head in a point-like manner, the arc plate and the special-shaped steel wire rack are vertically distributed, the width of the arc plate is consistent with the width of the plane, and the arc plate is in a thin sheet structure as a whole;

[0008] The special-shaped steel wire rack and the arc-shaped plate maintain the following rules in the non-working state: the upper and lower inner angles of the special-shaped steel wire rack are greater than 90°, and both ends of the V-shaped shape of the mounting head are spaced from the inner side of the special-shaped steel wire rack, the arc-shaped plate is in a semicircular shape as a whole, and the concave part of the arc-shaped plate points to one side of the fixing seat;

[0009] The special-shaped steel wire frame and the arc-shaped plate maintain the following rules in the working state: the upper and lower inner angles of the special-shaped steel wire frame are ≤90°, and both ends of the V-shaped shape of the mounting head are closely fitted with the inner side of the special-shaped steel wire frame, and the arc-shaped plate is straight as a whole and is parallel to the plane;

[0010] The outer side surface of the fixing seat and the outer side surface of the mounting head are maintained on the same horizontal plane, the depth of the embedding groove and the thickness of the arc plate are adapted to each other, the shape of the flexible limiting protrusion is semicircular, and the protrusions of the flexible limiting protrusion point to the opposite side of the fixing seat respectively.

[0011] In a preferred embodiment, the entire mounting head is made of medical-grade elastic material, and there are two mounting heads, which are symmetrically distributed at the upper and lower ends of the special-shaped steel wire frame.

[0012] In a preferred embodiment, the entire arc-shaped plate is made of a high-elastic alloy material, and the edges and corners of the arc-shaped plate are all rounded.

[0013] In a preferred embodiment, the fixing seat is located in the middle of the arc-shaped plate, and the fixing seat is rectangular as a whole, and the inner wall surface of the embedding groove is provided with anti-slip stripes.

[0014] In a preferred embodiment, the flexible limiting protrusions are made entirely of elastic material, and the surfaces of the flexible limiting protrusions are smooth.

[0015] In a preferred embodiment, the fillet is distributed obliquely with respect to the special-shaped steel wire frame as a whole, and the shape of the fillet is semicircular.

[0016] Technical effects and advantages of the present invention:

[0017] The present invention provides a fixing steel wire, a special-shaped steel wire frame, a mounting head and an arc-shaped plate. The arc-shaped plate can drive its two mounting heads to push and expand the inner side of the special-shaped steel wire frame from the upper and lower ends respectively during the process of being gradually straightened, so that the special-shaped steel wire frame as a whole can be effectively tightened and pulled apart, thereby wrapping and binding the loose tooth and the healthy teeth on both sides to ensure that the loose tooth and the normal teeth on both sides form an effective and firm overall chewing unit;

[0018] The diamond-shaped special-shaped wire frame is used to straighten the loose teeth and healthy teeth as a whole, and the loose teeth and healthy teeth are fixed in four directions in the central position. The special-shaped wire frame is tightened to tighten and straighten the fixed wires on both sides, so that a lateral pulling and wrapping force is continuously applied to the loose teeth and healthy teeth as a whole through the fixed wires, and the direction of its force is superimposed and coupled with the direction of the force of the special-shaped wire frame, so as to form a complex fastening structure in multiple directions, which fully ensures the overall firmness of the loose teeth and healthy teeth, and avoids the overall structure after fixation from being easily deviated to both sides after being subjected to force under complex chewing actions, thereby causing overall deformation or loosening and other adverse problems, further improving the practicability of the device and the safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the special-shaped steel wire rack and the fixed steel wire of the present invention;

[0021] Figure 3 It is a schematic diagram of the bottom surface structure of the curved plate of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional assembly structure of the arc plate and the mounting seat of the present invention;

[0023] Figure 5 It is a side structural schematic diagram of the present invention;

[0024] Figure 6 It is a schematic diagram of the top view structure of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the special-shaped steel wire rack of the present invention in a pre-fixed state and a tensioned state;

[0026] Figure 8 It is a schematic diagram of the stress analysis of the special-shaped steel wire rack and the fixed steel wire of the present invention;

[0027] Fig. 9 It is a schematic diagram of the side structure of the special-shaped steel wire rack of the present invention in different states;

[0028] Fig.10 For the present invention Fig. 9 Schematic diagram of the cross-sectional structure at AA;

[0029] Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure at point A;

[0030] Fig.12 It is a schematic diagram of the posture structure when the installation head of the present invention is connected to the special-shaped steel wire rack;

[0031] Fig.13 It is a schematic diagram of the three-dimensional structure of the mounting head of the present invention;

[0032] Fig.14 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0033] Fig.15 It is a schematic diagram of the three-dimensional structure of two groups of special-shaped steel wire racks according to the second embodiment of the present invention;

[0034] Fig.16 It is a top view of the second embodiment of the present invention.

[0035] The accompanying drawings are marked as follows: 1. fixing steel wire; 2. special-shaped steel wire rack; 3. mounting head; 4. arc-shaped plate; 5. plane; 6. fixing seat; 7. embedding groove; 8. flexible limiting protrusion; 9. rounded corner. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] As attached Figure 1 To Attachment Fig.13 A stable positioning periodontal splint assembly shown in the figure comprises a fixing wire 1, one side of the fixing wire 1 is fixedly connected with a special-shaped wire frame 2, the special-shaped wire frame 2 is rhombus-shaped as a whole, a mounting head 3 is fixedly mounted on both upper and lower ends of the symmetrical inner angles of the special-shaped wire frame 2, an arc-shaped plate 4 is commonly mounted on the side of the mounting head 3, one side of the mounting head 3 is provided with a plane 5 adapted to the arc-shaped plate 4, one side of the arc-shaped plate 4 is detachably inlaid with a fixing seat 6, the outer side of the fixing seat 6 is provided with an embedding groove 7, and a pair of flexible limiting protrusions 8 are symmetrically arranged at both ends of the embedding groove 7;

[0039] The left and right ends of the mounting head 3 are both provided with rounded corners 9. The above arrangement enables the loose teeth and healthy teeth to be fixed in a binding manner and form a firm overall structure to cope with the complex dynamic chewing movements in daily eating;

[0040] The horizontal height of the special-shaped steel wire rack 2 is greater than its horizontal length, the mounting head 3 is in a V-shape as a whole, and the inner corner of the special-shaped steel wire rack 2 is in fixed contact with the top of the mounting head 3 in a point-like manner, the arc plate 4 and the special-shaped steel wire rack 2 are vertically distributed, the width of the arc plate 4 is consistent with the width of the plane 5, and the arc plate 4 is in a thin sheet structure as a whole;

[0041] The special-shaped steel wire frame 2 and the arc plate 4 maintain the following rules in the non-working state: the upper and lower inner angles of the special-shaped steel wire frame 2 are greater than 90°, and both ends of the V-shaped shape of the mounting head 3 are spaced from the inner side of the special-shaped steel wire frame 2, the arc plate 4 is in a semicircular shape as a whole, and the concave part of the arc plate 4 points to one side of the fixing seat 6. By using the arrangement of the above-mentioned arc plate 4, during the installation and fixing process, the flat screen side faces the inside of the patient's oral cavity, thereby effectively avoiding scratching the patient's oral cavity and further increasing the safety of the device;

[0042] The special-shaped steel wire frame 2 and the arc-shaped plate 4 maintain the following rules in the working state: the upper and lower inner angles of the special-shaped steel wire frame 2 are ≤ 90°, and both ends of the V-shaped shape of the mounting head 3 are tightly fitted with the inner side of the special-shaped steel wire frame 2, and the arc-shaped plate 4 is straight as a whole and is parallel to the plane 5;

[0043] The outer side surface of the fixing seat 6 and the outer side surface of the mounting head 3 are maintained at the same horizontal plane, the depth of the embedding groove 7 and the thickness of the arc plate 4 are adapted to each other, the shape of the flexible limiting protrusion 8 is semicircular, and the protrusions of the flexible limiting protrusion 8 point to the opposite side of the fixing seat 6 respectively. The above-mentioned arrangement ensures that the overall posture of the special-shaped wire frame 2 in a non-working state is easy to operate, which is convenient for dentists to fix it to the loose tooth for tightening, and before fixation, sufficient length margin is left for the volume of the patient's loose tooth, which is convenient for the early fixation work. At the same time, when the subsequent special-shaped wire frame 2 is in a working state, the upper and lower inner angles of the special-shaped wire frame 2 are ≤90°, so that its deformable posture range is small, thereby further enhancing its anti-external force pulling effect, further ensuring its anti-deformation effect after being affected by external force, and improving the stability of the overall structure.

[0044] The entire arc plate 4 is made of a highly elastic alloy material, and the edges and corners of the arc plate 4 are all rounded. The fixing seat 6 is located in the middle of the arc plate 4, and the fixing seat 6 is rectangular as a whole. The inner wall surface of the embedding groove 7 is provided with anti-slip stripes. The flexible limiting protrusion 8 is made of an elastic material as a whole, and the surface of the flexible limiting protrusion 8 is smooth. The above design ensures that when the arc plate 4 is stretched and fixed by the embedding groove 7 in the fixing seat 6, the fixing seat 6 in the middle of the arc plate 4 and the arc plate 4 are evenly stressed, thereby preventing the arc plate 4 from being offset and twisted due to uneven stress as a whole, and further improving the integrity and stability of the overall structure of the arc plate 4.

[0045] For details, please refer to the attached manual Figure 3 The mounting head 3 is made of medical grade elastic material as a whole, and the V-shaped angle of the mounting head 3 is an obtuse angle. There are two mounting heads 3, and the two mounting heads 3 are symmetrically distributed at the upper and lower ends of the special-shaped steel wire frame 2.

[0046] The specific implementation method is as follows: by utilizing the material and angle setting of the mounting head 3, it can be ensured that when it is expanded and tightened to both sides through the arc plate 4, the mounting head 3 can be used to effectively support and expand the special-shaped steel wire frame 2, ensuring that the special-shaped steel wire frame 2 as a whole can be effectively tightened and pulled apart, thereby effectively fixing the loose teeth, so that it forms an effective and firm overall chewing unit with the normal teeth on both sides.

[0047] For details, please refer to the attached manual Fig.13 The fillet 9 as a whole is distributed obliquely with the special-shaped steel wire frame 2, and the shape of the fillet 9 is semicircular.

[0048] The specific implementation method is: the rounded corner 9 is maintained in an inclined distribution with the special-shaped steel wire frame 2, so that when the installation head 3 gradually moves, the rounded corner 9 and the special-shaped steel wire frame 2 can be in contact from point to surface, thereby effectively ensuring the contact effect between the rounded corner 9 on the side of the installation head 3 and the special-shaped steel wire frame 2, thereby increasing the adaptation accuracy between the structures and improving the stability of the overall bundling structure.

[0049] Working principle of the present invention:

[0050] Step 1: First, the operator assembles the various components of the device normally, and then uses the device normally.

[0051] Step 2: First, the operator places the fixing wire 1 and the special-shaped wire frame 2 as a whole in the oral position of the patient to be fixed, and ensures that the fixing wire 1 and the special-shaped wire frame 2 are around the loose tooth and the healthy tooth, and at the same time makes the loose tooth located in the middle position, and the healthy teeth on both sides serve as the fixing basis. Then the operator fixes the fixing seat 6 to the side of the loose tooth close to the oral cavity by using the resin material as an adhesive, and preliminarily sets the fixing seat 6 to be located in the middle position of the arc plate 4. At this time, the convex part of the arc plate 4 in the shape of a semicircular arc is located on the inner side of the patient's oral cavity. Then the operator presses the middle position of the arc plate 4 with the existing dental tools to deform it toward the side of the loose tooth and gradually tend to a straight posture. Finally, the arc plate 4 is elastically deformed by squeezing the flexible limiting protrusion 8, and is buckled into the inside of the embedding groove 7. At this time, the flexible limiting protrusion 8 restores its initial shape, thereby limiting and clamping the arc plate 4, forcing the arc plate 4 to be always in a straight posture after being straightened, and During the gradual straightening process, the mounting heads 3 at the upper and lower ends can be driven to push and expand the inner side of the special-shaped wire frame 2 from the upper and lower ends respectively, so that the special-shaped wire frame 2 as a whole can be effectively tightened and pulled apart, thereby wrapping and binding the loose teeth and the healthy teeth on both sides to ensure that the loose teeth and the normal teeth on both sides form an effective and firm overall chewing unit, and finally complete the multi-dimensional fixation of the loose teeth, and use the diamond-shaped special-shaped wire frame 2 to straighten the loose teeth and the healthy teeth as a whole to present a fixing trend in four directions of the center position, and use the special-shaped wire frame 2 to tighten and straighten the fixed wires 1 on both sides, and continue to apply a lateral pulling and wrapping force to the loose teeth and the healthy teeth as a whole through the fixed wire 1, and superimpose and couple its force direction with the force direction of the special-shaped wire frame 2, thereby forming a complex fastening structure in multiple directions, which fully ensures the firmness of the loose teeth and the healthy teeth as a whole, and finally completes the fixation work.

[0052] Step 3: First, the operator shuts down the device normally, then checks whether the fixation between the various components of the device is normal, and then replaces and repairs the aging and severely worn parts inside the device.

[0053] Example 2

[0054] As attached Fig.14 -Attached Fig.16 As shown, two groups of special-shaped steel wire frames 2 are arranged and fixed on both sides of the fixing steel wire 1 respectively. When treating patients with severe loose teeth, the loose teeth can be bundled and fixed in a left-right symmetrical manner by using the two groups of special-shaped steel wire frames 2, thereby further enhancing the wrapping force of the overall bundling structure on the loose teeth and improving the coverage of its comprehensive wrapping and pressure application, thereby improving its overall fixing effect and increasing its adaptability. Since the operation steps for fixing with the two groups of special-shaped steel wire frames 2 will increase and the overall volume of the fixing structure will also increase, the patient will feel a strong sense of discomfort in his daily diet. Therefore, in the treatment of patients with mildly loose teeth, according to actual conditions, there is no need to use two groups of special-shaped steel wire frames 2 for fixing. A single-sided special-shaped steel wire frame 2 can be used to cooperate with the fixing steel wire 1 for fixation to achieve the desired treatment effect.

[0055] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0056] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0057] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stable positioning periodontal splint assembly, characterized in that: It includes a fixed steel wire, one side of which is fixedly connected to a special-shaped steel wire frame, the special-shaped steel wire frame is rhombus-shaped as a whole, a mounting head is fixedly mounted on both upper and lower ends of the symmetrical inner corners of the special-shaped steel wire frame, an arc-shaped plate is commonly mounted on the side of the mounting head, one side of the mounting head is provided with a plane adapted to the arc-shaped plate, one side of the arc-shaped plate is detachably inlaid with a fixing seat, an outer side of the fixing seat is provided with an embedding groove, and a pair of flexible limiting protrusions are symmetrically arranged at both ends of the embedding groove; The left and right ends of the mounting head are both provided with rounded corners; The horizontal height of the special-shaped steel wire rack is greater than its horizontal length, the mounting head is in a V-shape as a whole, and the inner corner of the special-shaped steel wire rack is in fixed contact with the top of the mounting head in a point-like manner, the arc plate and the special-shaped steel wire rack are vertically distributed, the width of the arc plate is consistent with the width of the plane, and the arc plate is in a thin sheet structure as a whole; The special-shaped steel wire rack and the arc-shaped plate maintain the following rules in the non-working state: the upper and lower inner angles of the special-shaped steel wire rack are greater than 90°, and both ends of the V-shaped shape of the mounting head are spaced from the inner side of the special-shaped steel wire rack, the arc-shaped plate is in a semicircular shape as a whole, and the concave part of the arc-shaped plate points to one side of the fixing seat; The special-shaped steel wire frame and the arc-shaped plate maintain the following rules in the working state: the upper and lower inner angles of the special-shaped steel wire frame are ≤90°, and both ends of the V-shaped shape of the mounting head are closely fitted with the inner side of the special-shaped steel wire frame, and the arc-shaped plate is straight as a whole and is parallel to the plane; The outer side surface of the fixing seat and the outer side surface of the mounting head are maintained on the same horizontal plane, the depth of the embedding groove and the thickness of the arc plate are adapted to each other, the shape of the flexible limiting protrusion is semicircular, and the protrusions of the flexible limiting protrusion point to the opposite side of the fixing seat respectively.

2. A firmly positioned periodontal splint assembly according to claim 1, characterized in that: The entirety of the mounting head is made of medical-grade elastic material, and there are two mounting heads, which are symmetrically distributed at the upper and lower ends of the special-shaped steel wire frame.

3. A firmly positioned periodontal splint assembly according to claim 1, characterized in that: The entire arc plate is made of a high-elastic alloy material, and the edges and corners of the arc plate are all rounded.

4. A firmly positioned periodontal splint assembly according to claim 1, characterized in that: The fixing seat is located in the middle of the arc-shaped plate, and the fixing seat is rectangular as a whole. The inner wall surface of the embedding groove is provided with anti-slip stripes.

5. The stable positioning periodontal splint assembly according to claim 1, characterized in that: The flexible limiting protrusions are made entirely of elastic material, and the surfaces of the flexible limiting protrusions are smooth.

6. The stable positioning periodontal splint assembly according to claim 1, characterized in that: The fillet is distributed obliquely with the special-shaped steel wire frame as a whole, and the shape of the fillet is semicircular.