Supporting piece for ear post-operation form keeping

Abstract

The utility model discloses a supporting piece for ear post-operation form keeping, which comprises an inner attaching layer and an outer layer truss, the outer layer truss is in a cover body shape, and the edge of one side of the outer layer truss is connected with the inner attaching layer; the number of the supporting units is multiple, the supporting units are elastic components, the supporting units are arranged between the inner attaching layer and the outer-layer truss, one end of each supporting unit is connected with the inner attaching layer, the inner side of the outer-layer truss is connected with the other end of the corresponding supporting unit, and the outer-layer truss is arranged between the inner attaching layer and the outer-layer truss. The comfort and the supporting strength of the retainer can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a support for maintaining the shape after ear surgery. Background Art

[0002] Auricular deformities include auricular malformation and auricular deformation. Auricular malformation refers to the external ear deformity caused by the hypoplasia of ear skin and cartilage in the early stage of embryonic development, that is, the commonly said microtia; auricular deformation refers to the distortion and deformation of the auricle caused by abnormal development of auricular muscles or external abnormal forces, without obvious cartilage deficiency. If auricular deformities cannot be corrected in the early stage after birth, surgical treatment is often required after the age of 5 or 6, and there are risks such as postoperative infection, hematoma, and secondary repair surgery. Among them, the most common problem is postoperative wound scar contracture. Postoperative wound contracture will cause changes in the auricular shape compared with that immediately after surgery, and the size and range of contracture cannot be estimated in advance. In the most serious cases, the shape will return to the preoperative state, that is, the recurrence of auricular deformity. At present, there is no specific treatment method for this problem. The commonly used clinical method is to use 3M medical tape for external fixation, or to use an auricular orthosis to assist in maintaining the postoperative shape. The above-mentioned methods cannot effectively deal with the problem of postoperative wound contracture because they are not personalized enough and the support strength is limited. Therefore, it is very necessary to develop a personalized auricular shape retainer based on the patient's auricular shape to maintain the shape after auricular deformity correction. Summary of the Utility Model

[0003] The utility model provides a support for maintaining the shape after ear surgery, which can improve the comfort and support strength of the retainer.

[0004] In order to solve the above technical problems, the utility model provides a support for maintaining the shape after ear surgery, including:

[0005] An inner fitting layer;

[0006] An outer truss, the outer truss is in the shape of a cover body, and one side edge of the outer truss is connected to the inner fitting layer;

[0007] Support units, the number of the support units is multiple, the support units are elastic components, the support units are arranged between the inner fitting layer and the outer truss, one end of the support unit is connected to the inner fitting layer, and the inner side of the outer truss is connected to the other end of the support unit.

[0008] As an optimization of the above technical solution, the support unit includes a plurality of elastic support rods. One ends of the plurality of elastic support rods are connected to form a vertex, and the plurality of elastic support rods extend radially outward with the vertex facing outward.

[0009] As an optimization of the above technical solution, the number of elastic support rods of each support unit is three.

[0010] As an optimization of the above technical solution, the included angle between every two adjacent elastic support rods is 30° to 60°.

[0011] As an optimization of the above technical solution, the end of the support unit forming the vertex is connected to the inner fitting layer, and the other end of the support unit is connected to the outer truss.

[0012] As an optimization of the above technical solution, the outer truss is a soft rubber part.

[0013] As an optimization of the above technical solution, the support unit is a soft rubber part.

[0014] As an optimization of the above technical solution, hexagonal perforations are formed on the outer truss so that the outer truss is in a honeycomb shape.

[0015] A support member for maintaining the shape after ear surgery provided by the present utility model includes an inner fitting layer, an outer truss, and a support unit. The inner fitting layer is consistent with the shape of the patient's auricle and fits with the auricle. The outer truss is connected to the inner fitting layer, and the retainer acts on the outer truss. Since a support unit is provided between the inner fitting layer and the outer truss, and the support unit has elasticity, its elastic force acting on the inner fitting layer can improve comfort and supportiveness.

[0016] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model are specifically exemplified below. Brief Description of the Drawings

[0017] Figure 1 Shows the usage state diagram of the retainer in Embodiment 1.

[0018] Figure 2 Shows the three-dimensional exploded schematic diagram of a support member for maintaining the shape after ear surgery in Embodiment 1.

[0019] Figure 3 Shows the position schematic diagram of the inner opening in Embodiment 1.

[0020] Figure 4Shows a three-dimensional structural schematic diagram in the injection state in Embodiment 1 of the present invention.

[0021] Figure 5 Shows a schematic connection structure diagram of the elastic sphere and the support unit in Embodiment 2 of the present invention.

[0022] Figure 6 Shows a schematic flow diagram of the steps of a preparation method of a support member in Embodiment 1.

[0023] Figure 7 Shows a schematic flow diagram of the steps of a scanner scanning a patient's auricle in Embodiment 1.

[0024] Figure 8 Shows a schematic flow diagram of the steps of designing a digital model of a support member based on a 3D digital model of an ear in Embodiment 1.

[0025] Figure 9 Shows a schematic flow diagram of the steps of designing a digital model of an inner fitting layer in Embodiment 1.

[0026] Figure 10 Shows a schematic flow diagram of the steps of designing a digital model of an outer truss in Embodiment 1.

[0027] Figure 11 Shows a schematic flow diagram of the steps of designing a digital model of a support unit in Embodiment 1.

[0028] In the figure: 10, retainer; 20, support unit; 30, outer truss; 40, inner fitting layer; 201, elastic support rod; 301, hexagonal perforation; 302, large opening; 401, inner opening; 50, elastic sphere; 501, outlet; 60, syringe. Detailed implementation manners

[0029] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] Embodiment 1: Refer to Figure 1 and Figure 2 , the embodiment of the present invention provides a support member for maintaining the postoperative shape of an ear, including:

[0031] Inner fitting layer 40;

[0032] The outer truss 30 is in the shape of a cover body, and one side edge of the outer truss 30 is connected to the inner fitting layer 40;

[0033] The support unit 20, the number of the support units 20 is multiple, the support unit 20 is an elastic component, the support unit 20 is arranged between the inner fitting layer 40 and the outer truss 30, one end of the support unit 20 is connected to the inner fitting layer 40, and the inner side of the outer truss 30 is connected to the other end of the support unit 20.

[0034] The inner fitting layer 40 in this embodiment is a solid structure. In the present invention, the thickness of the inner fitting layer 40 is about 2 - 5 cm, and the thickness of the solid part can be designed according to the actual situation. The outer side of the inner fitting layer 40 is a crystalline structure.

[0035] A support member for maintaining the shape after ear surgery provided in this embodiment includes an inner fitting layer 40, an outer truss 30, and a support unit 20. The inner fitting layer 40 is consistent with the shape of the patient's auricle and fits with the auricle. The outer truss 30 is connected to the inner fitting layer 40. The support member in this embodiment is used for the retainer 10, and the retainer 10 acts on the outer truss 30. Since the support unit 20 is arranged between the inner fitting layer 40 and the outer truss 30, and the support unit 20 has elasticity, its elastic force acting on the inner fitting layer 40 can improve comfort and support.

[0036] In a further feasible implementation manner of this embodiment, the support unit 20 includes a plurality of elastic support rods 201. One ends of the plurality of elastic support rods 201 are connected to each other to form a vertex, and the plurality of elastic support rods 201 extend radially outward with the vertex facing outward.

[0037] One ends of the plurality of elastic support rods 201 in this embodiment are connected to each other to form a vertex, which can make the force more concentrated.

[0038] In a further feasible implementation manner of this embodiment, the number of the elastic support rods 201 of each support unit 20 is three.

[0039] In a further feasible implementation manner of this embodiment, the included angle between every two adjacent elastic support rods 201 is 30° to 60°.

[0040] In a further feasible implementation manner of this embodiment, the end of the support unit 20 forming the vertex is connected to the inner fitting layer 40, and the other end of the support unit 20 is connected to the outer truss 30.

[0041] One end of the support unit 20 in this embodiment that forms a vertex is connected to the inner fitting layer 40, which can concentrate the force on the inner fitting layer 40 and diffuse it along the support unit 20 towards the outer truss 30. This can not only improve stability but also prevent damage to the auricle when receiving impact. Additionally, it is more conducive to the recovery of the auricle after surgery.

[0042] Specifically, the support member in this embodiment can compress the support unit 20 during the growth of the auricle, which is beneficial to postoperative recovery.

[0043] The support unit 20 is composed of three support rods. One ends of the three support rods are connected together and evenly connected to the inner layer. The other ends of the support rods are connected to the vertices of the outer truss. The support rods within each group of support units form an angle of 30° to 60° with each other, and together with the outer truss and the inner fitting layer, they form a stable shape, ensuring no deformation under a certain intensity of impact and providing sufficient support force for the entire retainer. And on the premise of ensuring the strength, the entire retainer has more pores, lighter weight, reduces the sense of sag, and is more comfortable to wear. The outer truss presents a honeycomb shape, reducing the weight while ensuring the strength.

[0044] In a further implementable manner of this embodiment, the outer truss 30 is a soft rubber part.

[0045] In a further implementable manner of this embodiment, the support unit 20 is a soft rubber part.

[0046] In a further implementable manner of this embodiment, hexagonal perforations 301 are formed on the outer truss 30 to make the outer truss 30 present a honeycomb shape.

[0047] See Figure 3 and Figure 4 In this embodiment, a channel is further provided on the inner fitting layer 40. Both ends of the channel are open on both sides of the inner fitting layer 40, and a large opening 302 is provided on the outer truss 30. The large opening 302 corresponds to the inner opening 401 of the channel. The outer opening of the channel is consistent with the surgical position of the auricle. This channel can facilitate the injection of drugs. Specifically, after the retainer 10 is installed, it is inconvenient to replace the drugs. Especially for some drugs that are helpful for postoperative recovery, the retainer 10 needs to be disassembled together with the soft rubber to replace the drugs. However, in this embodiment, the drug can be directly injected through a syringe 60. The syringe barrel is inserted through the large opening 302, and the drug is injected into the channel from the inner opening 401 without disassembling the soft rubber, and then flows through the outer opening to the postoperative wound site.

[0048] See Figures 6 to 11 This embodiment also provides a preparation method for the support member.

[0049] It should be noted that the specific structure of the support member for maintaining the shape after ear surgery has been described in the above embodiments, and the specific structure of the support member will not be elaborated herein;

[0050] See Figure 6 As shown, a preparation method of a support member provided in this embodiment includes the following specific steps:

[0051] S10: Scan the auricle of the patient through a scanner to construct a 3D digital model of the ear;

[0052] In this embodiment, the basic data model of the ear can be quickly obtained through the scanning instrument;

[0053] S20: Import the 3D digital model of the ear into modeling software and design the digital model of the support member based on the 3D digital model of the ear;

[0054] In this embodiment, the digital model of the support member is constructed through the 3D digital model obtained by the scanning instrument, which can quickly and accurately complete the construction of the digital model of the support member. Further, it can realize the production of customized parts according to the ear shapes of different patients, making the support member more adaptable to the patient's ear and more conducive to the repair in the later stage of the surgery;

[0055] S30: Export the digital model of the support member into a file format recognizable by a 3D printer;

[0056] The obtained digital model of the support member in this embodiment can be converted into any file format recognizable by a 3D printer;

[0057] S40: Import it into a 3D printer for printing to prepare the support member;

[0058] In this embodiment, the support member is finally produced through 3D, which has the characteristics of fast and flexible production and can improve the production accuracy.

[0059] See Figure 7 As shown, the steps of scanning the auricle of the patient through a scanner to construct a 3D digital model of the ear include:

[0060] S101: Preheat the 3D scanner;

[0061] Preheating the 3D scanner can ensure the best accuracy of the 3D scanner; when preheating, the preheating operation needs to be carried out according to the operation guide of the manufacturer;

[0062] S102: Hold the 3D scanner and move it steadily at multiple angles, and maintain a working distance of 0.2 to 0.3 meters during the movement;

[0063] In this embodiment, through stable movement at multiple angles, it can comprehensively capture the entire auricle region, capture the structure of the outer ear from various angles, and the indicator can display the distance between the scanner and the object;

[0064] S103: Monitor the integrity of the scan during and after the scan and perform real-time fusion operations;

[0065] It can ensure the integrity of ear data during the scan;

[0066] S104: Import the scan data into the set processing software;

[0067] S105: Manually operate the processing software to align and fuse the data to construct a 3D digital model of the ear;

[0068] S106: Edit and manipulate the 3D digital model through data smoothing and defect repair;

[0069] In this embodiment, data repair can improve the accuracy of the data;

[0070] S107: Render the 3D digital model and crop to obtain the set area;

[0071] The cropping process in this embodiment can be operated according to requirements in Meshlab{Callieri, 2012 #1} to obtain the set area of interest;

[0072] In this embodiment, cropping the redundant parts can reduce the computational amount;

[0073] S108: Export the model as a stereolithography file as a reference model;

[0074] The stereolithography file in this embodiment can be in the STL format file;

[0075] See Figure 8 As shown, the steps of designing the digital model of the support based on the 3D digital model of the ear include:

[0076] S201: Design the digital model of the inner fitting layer;

[0077] S202: Design the digital model of the outer truss;

[0078] S203: Design the digital model of the support unit;

[0079] S204: Integrate the inner fitting layer, support unit, and outer truss into the digital model of the support through the Boolean tool;

[0080] In this embodiment, through the above steps, a digital model of the entire support member for 3D printing can be obtained quickly and accurately.

[0081] See Figure 9 As shown, the specific steps for designing the digital model of the inner fitting layer include:

[0082] S2011: Import the digital model into the computer modeling software Rhino;

[0083] S2012: Cut out the part of the ear and about one centimeter around it, and then offset it 2 mm outward along the normal direction;

[0084] S2013: Convert the obtained stl model into a subdivision surface;

[0085] S2014: Use the flexible deformation tool to appropriately deepen the features of the scaphoid fossa, concha, triangular fossa and other parts;

[0086] In this embodiment, through the above steps, a digital model of the inner fitting layer can be obtained quickly and accurately;

[0087] See Figure 10 As shown, the specific steps for designing the digital model of the outer layer truss include:

[0088] S2021: Offset the surface formed by the helix, earlobe, and tragus connection line outward along the normal direction to obtain a kidney-shaped shell that wraps the entire ear and the surrounding skin area;

[0089] S2022: Open the parametric modeling plugin grasshopper and use the triremesh tool to reconstruct the model into a model composed of uniform triangular faces;

[0090] S2023: Then use the face boundaries tool to extract the edges of the triangular faces;

[0091] S2024: Use the poltgon center tool to find the center points of these triangular faces and connect them, and a honeycomb-shaped kidney-shaped frame composed of uniformly arranged hexagons is obtained;

[0092] S2025: Use the tubular generation tool to obtain the data model of the outer layer truss structure.

[0093] In this embodiment, through the above steps, a digital model of the outer layer truss can be obtained quickly. In addition, in this embodiment, the side length of the hexagonal face can be modified by modifying the side length in the trimesh step, and the diameter at the vertices of the hexagon is increased to 1.5 times the diameter of the circular tube to improve the strength of the entire structure.

[0094] See Figure 11 As shown, the steps for designing the digital model of the support unit include:

[0095] S2031: Extract the data of the hexagonal center points in the digital model of the outer truss;

[0096] S2032: Use move to move 20 mm along the normal direction and then connect the lines to the hexagonal center points;

[0097] S2033: Then use the trim with brep tool to obtain the intersection points with the inner fitting layer;

[0098] S2034: Use list ltem to extract the interval points of the hexagonal vertices and connect the lines to the previously obtained intersection points;

[0099] S2035: Use the tubular generation tool to obtain the support unit structure.

[0100] The support of this embodiment strengthens the structures of different structural partitions of the postoperative ear or reduces the weight and thickness of the parts that do not require support. Compared with the fully solid structure, it is more plastic in terms of fit and has the effect of balanced support. For products worn on the head, the lighter the weight, the better. At the same time, it also has functions such as ventilation, sweating, and protection. In addition, due to the special structure of the lattice structure, there is a certain amount of space that can be compressed, which can enable the overall postoperative auricle to naturally recover to the repaired contour without feeling compression, increasing the service life of the product.

[0101] The auricle retainer is a personalized customized product that helps patients with auricle deformities recover after surgery. The individual differences among different patients are extremely large, mainly reflected in: 1. The shapes of the postoperative auricles of patients are different, the patient conditions are different, and the performance points of the products to be worn are also different. 2. The individual recovery periods and effects of patients are not completely consistent, so the wearing times are also different. 3. Different retainers with different strengths and shapes need to be matched during different recovery periods to maintain the effects.

[0102] This product belongs to medical products and is affiliated with the field of medical devices. As we all know, 3D printing technology has significant advantages in many aspects compared with traditional manufacturing methods in the medical field, mainly including the following aspects:

[0103] 1. Rapid prototyping: 3D printing can complete the manufacturing of complex parts in a short time, especially suitable for rapid prototyping.

[0104] 2. Personalized customization: 3D printing technology can customize unique products according to individual needs without additional costs, especially suitable for small-batch and personalized production, meeting the actual patient needs targeted by this product.

[0105] 3. Complex Geometric Shapes and Internal Structures: Traditional manufacturing methods are limited by processing equipment and technologies, with limited ability to realize complex designs such as complex internal channels, nested structures, and non-uniform material distributions. The auricle has a complex anatomical structure. Anatomical structures such as the scaphoid fossa, triangular fossa, and concha cavity, which are often involved in auricle deformity correction surgeries, have relatively large changes in postoperative morphology compared to pre-operation, and are key anatomical regions for maintaining postoperative morphology. Due to their complex shapes, traditional processing methods have significant drawbacks. 3D printing can directly manufacture parts of almost any complex shape, including integrated, hollow, porous, and topologically optimized structures, significantly expanding the design freedom, especially having significant advantages for the lattice structure of this product. Specifically, it is manifested as follows: The lattice of this product requires high structural strength, with thin rod structures (0.5 - 1 mm) to maintain the lattice and dense lattice holes. Additionally, in terms of material utilization and resource conservation: 3D printing adds materials layer by layer and only deposits at the required places, reducing material waste. Especially when manufacturing complex curved surfaces, the material utilization rate is usually higher than that of traditional mold opening manufacturing.

[0106] 4. Cost Reduction and Supply Chain Shortening: 3D printing does not require expensive traditional molds. Especially for one-time or small-batch production, it can significantly reduce manufacturing costs, which is of great significance to patients, manifested as more controllable medical costs and higher patient acceptance.

[0107] 5. Desktop Printing and Digital Design: The small desktop 3D printer used in this product has a small footprint, can be flexibly moved, and its parts are easy to replace, enabling manufacturing activities to be directly carried out in hospital laboratories, reducing the dependence on large factory facilities, achieving local and immediate production, and thus avoiding problems such as inventory generation and excessive occupation of hospital internal space. The high combination of digital software and 3D printing technology hardware provides great operability and feasibility for doctors to create product models after postoperative scans of more complex patient auricles.

[0108] 6. Material Diversity and Function Integration: Since this product needs to directly contact the patient's wound, the research and application of biocompatible printing materials provide the possibility for the large-scale use of this product. In addition to the core soft rubber functional components, other components of the auricle retainer, such as protective covers and buckle parts, can also be produced by the same technology and machine by changing materials. Doctors can complete the production and assembly of all components in one place, greatly reducing the product production cycle and logistics costs, and achieving a high degree of integration of product functions.

[0109] In summary, due to its advantages such as rapid prototyping, personalized customization, manufacturing of complex structures, high material utilization rate, cost and supply chain optimization, and material diversity and function integration, 3D printing technology shows a high degree of compatibility in the manufacturing process of each component of this product. Moreover, with the continuous development of 3D printing technology and material research and development and the further reduction of costs, its application scale is expected to continue to expand.

[0110] The production process of the lattice for the customized soft rubber part after 3D scanning and importing into the computer (including the process description of strengthening or reducing weight and thickness for different structural partitions after ear surgery, the design of the retainer is exported as an STL file and imported into the PreForm software (version 3.21.0, Formlabs, Inc, Somerville, Mass). All printed products are manufactured using a Form3B+ printer (Formlabs) and a resin with a hardness of 80 A (BioMed Flex 80A Resin, Formlabs) that has good biocompatibility. The support material, positioning, and layout are automatically generated by the printing software program. After the printing process is completed, the part is removed from the platform using a spatula and post-processing begins. The part is soaked in 99% isopropyl alcohol (IPA) for 20 minutes, gently pulled out, and then washed for another 10 minutes. After the washing process is completed, the part is completely dried at room temperature for one hour. Finally, the dried part is placed in a glass beaker, and the beaker is immersed in water to polymerize the part. Curing is completed in a UV curing unit (Form Cure; Formlabs) at 60 °C for 10 minutes. The part is dried on a dry paper towel.

[0111] Example 2: Refer to Figure 5 , the difference between this example and Example 1 is that an elastic sphere 50 is provided at the vertex of the support unit 20. The interior of the elastic sphere 50 is in a cavity state to form an accommodation space inside, and an outlet 501 is formed at the top of the elastic sphere 50. The top of the elastic sphere 50 is connected to the inner side of the inner fitting layer 40, and the outlet 501 at the top of the elastic sphere 50 communicates with the inner opening 401 of the channel. The accommodation space inside the elastic sphere 50 can be used to accommodate a medicament that helps with postoperative recovery. During the recovery process of the auricle after surgery, the medicament inside the elastic sphere 50 is transported to the surgical site of the auricle through the channel by the elastic sphere 50. Additionally, an adsorption layer can be provided on one side of the inner fitting layer 40. The adsorption layer can be made of materials such as sponge. The medicament discharged by squeezing the elastic sphere 50 first flows to the adsorption layer and then diffuses through the entire adsorption layer by osmosis, which can make the distribution of the medicament more uniform and help the medicament come into full contact with the surgical site. Through the setting of the elastic sphere 50, the use of the medicament can be made more convenient.

[0112] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0113] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0114] As described above, it is only the specific implementation manners of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of changes or substitutions within the technical scope disclosed by the present invention, and all such changes or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claimed rights.

Claims

1. A support for maintaining the shape of the ear after surgery, characterized in that: include: Inner lamination layer; An outer truss, the outer truss is in a cover shape, and one side edge of the outer truss is connected to the inner bonding layer; A supporting unit, wherein the number of the supporting units is multiple, the supporting unit is an elastic component, the supporting unit is arranged between the inner bonding layer and the outer truss, one end of the supporting unit is connected to the inner bonding layer, and the inner side of the outer truss is connected to the other end of the supporting unit.

2. The support for maintaining the shape of the ear after surgery according to claim 1, characterized in that: The support unit comprises a plurality of elastic support rods, one ends of the plurality of elastic support rods are mutually connected to form a vertex, and the plurality of elastic support rods extend radially outward from the vertex.

3. The support for maintaining the shape of the ear after surgery according to claim 2, characterized in that: Each of the support units has three elastic support rods.

4. The support for maintaining the shape of the ear after surgery according to claim 3, characterized in that: The angle between every two adjacent elastic support rods is 30° to 60°.

5. The support for maintaining the shape of the ear after surgery according to claim 2 or 3, characterized in that: One end of the support unit forming a vertex is connected to the inner bonding layer, and the other end of the support unit is connected to the outer truss.

6. The support for maintaining the shape of the ear after surgery according to claim 1, characterized in that: The outer truss is a soft rubber part.

7. The support for maintaining the shape of the ear after surgery according to claim 1, characterized in that: The supporting unit is a soft rubber part.

8. The support for maintaining the shape of the ear after surgery according to claim 7, characterized in that: Hexagonal holes are formed on the outer trusses so that the outer trusses are honeycomb-shaped.

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