Bionic rhinoplasty stent

Abstract

Disclosed in the present invention is a bionic rhinoplasty stent, relating to the technical field of rhinoplasties. The rhinoplasty stent comprises a nasal columella area and a nasal septum clamping area connected to the nasal columella area. The nasal columella area is located in front of the nasal septum clamping area. The nasal columella area comprises a nasal columella body. The left and right sides of the nasal columella body are connected to outer side foot supporting parts. The nasal columella body and the outer side foot supporting parts are of an integrated structure. The nasal septum clamping area comprises two nasal septum clamping pieces connected to the nasal columella body. According to the present invention, the nasal columella body and the outer side foot supporting parts are integrally arranged, and without construction and suturing of the rhinoplasty stent, and without additional autologous tissue for elevating and suture fixing of the nasal tip, the stent of the present application can be directly adopted, thus reducing the difficulty of the rhinoplasty, shortening the time required by the rhinoplasty, and avoiding the problem of the need for another surgery for those who seek beauty due to loosening and displacement of the nasal lobule, or upward / downward rotation of the nasal tip caused by separate suturing of an outer side foot stent and a dome supporting part stent. Therefore, the pain of those who seek beauty during rhinoplasty is reduced.

Description

A bionic rhinoplasty bracket Technical Field

[0001] The present invention relates to the technical field of rhinoplasty surgery, in particular to a bionic rhinoplasty bracket. Background Art

[0002] The existing technologies are divided into two major categories: autologous tissue rhinoplasty and artificial material rhinoplasty.

[0003] Autologous tissue rhinoplasty: Usually, the rib cartilage or cartilage is taken first, and then installed and sutured in different areas to form the support required for rhinoplasty. For example, the columella bracket and the nasal septum extension bracket are built to form an "L"-shaped support. The alar cartilage is then sutured to the "L"-shaped bracket to form the nasal tip platform. The rib cartilage or ear cartilage is then placed on the platform and sutured to form the shape of the nasal tip upturned. Medical knowledge: The human body's hard bones can heal bony after injury, but cartilage damage is irreversible. Cartilage regeneration will not occur between cartilage and cartilage, and it is difficult for the transplanted cartilage to form a strong connection with the fascia. This makes the suture area of ​​the above-mentioned bracket prone to secondary loosening and displacement. Clinically, it manifests as loss of nasal tip height, upward or downward rotation of the nasal tip, which affects the appearance. This is one of the most common complications of rhinoplasty. Even if the nasal tip does not rotate upward or downward after surgery, it cannot be pressed down, kneaded, or used to blow your nose. Due to the strong support of the rhinoplasty stent, complications such as visible stent shape, skin discoloration, and even perforation can easily occur. Rhinoplasty with ear cartilage alone is often difficult due to its lack of support. Even if the surgery is successful, the large amount of ear cartilage removed can easily lead to complications such as auricular deformation.

[0004] Rhinoplasty with artificial materials: Porous polyethylene (brand names SU-POR and MEDPOR) imported from the United States is usually used to replace rib cartilage strips for the construction of rhinoplasty stents. Due to the inherent hardness of polyethylene materials, when in contact with soft human tissues, it is very easy to cause complications such as tissue redness, stinging, exudation, blood streaks, hyperplasia, etc. In severe cases, the stent will penetrate the skin and cause secondary tissue infection. Even if there are no corresponding surgical complications, due to the high hardness of polyethylene, the tip of the nose cannot be kneaded or pressed down, and the problem of secondary visibility of the tip graft is also easy to occur. The porous polyethylene material lacks resilience, resulting in the inability to restore the symmetrical shape once the columella is deviated after rhinoplasty.

[0005] Once the above problems occur, the patient will have to undergo surgery again. Obviously, this aggravates the pain of rhinoplasty patients and involves high economic expenditure and time costs for treatment and recovery.

[0006] Therefore, how to effectively shorten the time of rhinoplasty surgery and reduce the complications of rhinoplasty surgery has become a technical problem that needs to be solved urgently by those skilled in the art.

[0007] Summary of the Invention

[0008] The purpose of the present invention is to provide a bionic rhinoplasty stent, analyze the defects of the existing technology from the perspective of medical cosmetic surgeons, and fundamentally solve the problems existing in the above-mentioned existing technology, thereby effectively reducing the difficulty of surgery, shortening the rhinoplasty operation time, and reducing the occurrence of rhinoplasty complications.

[0009] To achieve the above object, the present invention provides the following solutions:

[0010] The present invention provides a bionic rhinoplasty stent, which includes a columella area and a septum clamping area connected to the columella area and used to clamp the nasal septum, wherein the columella area is located in front of the septum clamping area; the columella area includes a columella main body for supporting the human columella, and the left and right sides of the columella main body are connected to lateral crus supporting parts for supporting the lateral crus of human alar cartilage, and the columella main body and the lateral crus supporting parts are connected by an arched dome to form an integrated structure. The septum clamping area includes two septum clamping plates for clamping the human septum cartilage, and the septum clamping plates are connected to the columella main body.

[0011] Preferably, a bionic protrusion for imitating the biological structure of the inner foot pedal of the human alar cartilage is provided on the side of the columella body facing the outer foot support portion, and the bionic protrusion is the inner foot pedal area, which is used to control the shape and size of the nostril.

[0012] Preferably, a dome support portion formed by the upward arch of the lateral crus support portion is provided between the columella main body and the lateral crus support portion, and the dome support portion is used to support the dome of the nasal alar cartilage of the human body.

[0013] Preferably, the thickness of the dome supporting portion is greater than the thickness of the non-dome supporting portion, and the thickness of the non-dome supporting portion gradually decreases from the inside to the outside.

[0014] Preferably, the end of the columella body that fits with the upper jaw of the human body is also provided with a subnasal point support platform for supporting the tissue under the subnasal point of the human body, and the subnasal point support platform extends forward and downward along the upper jaw.

[0015] Preferably, one end of the subnasal support point platform connected to the columella body is a small end, and the other end extends forward and downward to form an enlarged end.

[0016] Preferably, the columella body mimics the functions of the medial crus and pedal of the human alar cartilage, and is a composite structure that can serve as the supporting structure function of the columella body and the medial crus function.

[0017] Preferably, the bionic rhinoplasty bracket includes an inner bracket and an outer bracket arranged in sequence from the inside to the outside, the inner bracket and the outer bracket are bonded to each other, the inner bracket and the outer bracket are both silicone brackets, and the hardness of the inner bracket is higher than that of the outer bracket.

[0018] Preferably, the bionic rhinoplasty stent is provided with a plurality of holes, which facilitate the growth of human tissue, forming a permanent fixation between the nasal tissue and the bionic rhinoplasty stent, and the holes are conducive to the infiltration of tissue fluid, maintaining the nutritional supply of the tissue in the clamped area.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The present invention integrates the columella main body and the lateral crus support part, which makes it unnecessary for medical staff to build and suture the rhinoplasty bracket when performing rhinoplasty surgery, and there is no need to use autologous tissue to raise the nose tip and suture and fix it. The bracket of the present invention can be directly used, which reduces the difficulty of rhinoplasty surgery and shortens the time required for medical staff to perform rhinoplasty surgery. It avoids the complications of loosening and displacement of the suture area, upward and downward rotation of the nose tip, and deformity caused by suturing the lateral crus bracket and the dome support bracket separately, reduces the possibility of patients needing another surgery, reduces the pain of patients undergoing rhinoplasty surgery, and reduces the economic and time costs of patients in the process of beauty. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] FIG1 is a schematic diagram of a bionic rhinoplasty stent viewed from directly above when a person is lying on his back;

[0023] FIG2 is a schematic diagram of a bionic rhinoplasty stent from a side view when a person lies supine;

[0024] FIG3 is a schematic diagram of the bottom view of the bionic rhinoplasty stent when the human body is lying on its back;

[0025] FIG4 is a schematic diagram of a bionic rhinoplasty support frame viewed from the foot end to the top of the head when a person lies supine;

[0026] FIG5 is a schematic diagram of a bionic rhinoplasty stent viewed from the top of the head to the feet when a person lies supine;

[0027] Among them, 1. The main body of the columella; 2. The lateral crus support part; 3. The dome support part; 4. The subnasal point support platform; 5. The hole in the main area of ​​the columella; 6. The hole in the lateral crus support part; 7. The nasal septum clamping piece; 8. The medial crus pedal area. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] As shown in Figures 1 to 5, the present invention discloses a bionic rhinoplasty bracket, which includes a columella area and a septum clamping area connected to the columella area and used to clamp the nasal septum. The columella area is located in front of the septum clamping area; the columella area includes a columella main body 1 for supporting the height of the human columella during rhinoplasty, and also includes an inner foot pedal area 8 integrated with the columella main body 1; the left and right sides of the columella main body 1 are connected with an outer foot support part 2 for supporting the outer foot of the human alar cartilage, and the columella main body 1 and the outer foot support part 2 are connected with an arched dome (the arched dome refers to the dome support part 3) as an integrated structure, and the septum clamping area includes two septum clamping plates 7 for clamping the septum cartilage, and the septum clamping plate 7 is connected to the columella main body 1.

[0031] The present invention mimics the morphology of human nasal septum cartilage, columella and alar cartilage, combines the aesthetic points required by doctors during rhinoplasty surgery, and avoids common complications in rhinoplasty surgery to design a rhinoplasty stent.

[0032] 1. The bionic rhinoplasty stent consists of an inner and outer layer, arranged sequentially from the inside out. The inner and outer layers are bonded together and are both made of silicone, with the inner layer being harder than the outer layer. The material selection for the bionic rhinoplasty stent takes advantage of silicone's inertness, high resilience, and the varying properties of silicones of varying hardness.

[0033] (1) Inertness: After silicone is implanted in the body, human tissue is very unlikely to have an immune response, which has been clearly verified in clinical practice;

[0034] (2) High resilience: After silicone is implanted in the body, it can return to its original shape after being subjected to external force, achieving the purpose of not being afraid of kneading. This is a characteristic of the material itself;

[0035] (3) Differences in the characteristics of silicones of different hardness: Silicone with relatively high hardness has better support force, relatively poor simulation feel, and relatively strong tissue irritation reaction; Silicone with relatively softness has better simulation feel, relatively poor support force, and relatively weak tissue irritation reaction. The present invention uses silicone with high hardness as the inner core of the stent to form an effective support force (only appropriate support force is required clinically); silicone with low hardness is used to adhere to the surface of the inner stent to avoid the relatively strong silicone from contacting the human soft tissue, reduce the possibility of tissue irritation reaction, and make the stent have a more simulated feel after implantation. The use of silicone with a combination of soft and hard to achieve the appropriate support force allows the stent to maintain the shape after rhinoplasty after implantation, and to perform daily actions such as pressing, kneading, and blowing the nose under the action of external force, and reduces the irritation reaction of the stent to the tissue of the implantation area, thereby reducing the occurrence of complications.

[0036] (4) The use of silicone materials is more in line with the requirements of medical ethics. In the past, the costal cartilage and ear cartilage obtained in rhinoplasty surgery were normal organs of the human body and had irreplaceable functions. Moreover, the removal of ear cartilage may cause auricular deformity and collapse; the removal of costal cartilage may cause intercostal neuralgia and hemothorax; and the permanent scars left by incising cartilage on normal skin are also a pain point that patients cannot accept.

[0037] 2. Among them, in the structural design of the bionic rhinoplasty bracket:

[0038] The bionic rhinoplasty stent includes a columellar region and a septum clamping region connected to the columellar region and used to clamp the human nasal septum. The columellar region is located in front of the septum clamping region. The columellar region includes a columellar body 1 for supporting the columella. Both left and right sides of the columellar body 1 are connected to lateral crus support portions 2 for supporting the lateral crus of the human alar cartilage. The columellar body 1 and lateral crus support portions 2 are connected by an arched dome to form a one-piece structure. The septum clamping region includes two septum clamping plates 7 for clamping the human nasal septum cartilage. The septum clamping plates 7 are connected to the columellar body 1. A bionic protrusion is provided on the side of the columellar body 1 facing the lateral crus support portion 2, which is designed to mimic the biological structure of the medial crus of the human alar cartilage. This bionic protrusion forms the medial crus region 8 of the bionic stent and is used to control the shape and size of the nostrils. A dome support portion 3 formed by the upward arch of the lateral crus support portion 2 is provided between the columella main body 1 and the lateral crus support portion 2. The dome support portion 3 is used to support the dome of the nasal alar cartilage of the human body.

[0039] (1) The columella main body 1, the dome support part 3, and the nasal septum clamping area are designed as an integrated whole: the difficulty of the operation is effectively reduced: the existing lateral foot bracket and the dome support bracket are set separately, which causes the nose tip of the patient to loosen and shift after the operation, and the nose tip to rotate up and down. After adopting the bionic rhinoplasty bracket of the present invention, the columella main body 1, the dome support part 3, and the nasal septum clamping area are designed as an integrated whole, which not only reduces the difficulty of rhinoplasty surgery and shortens the operation time, but also effectively avoids the complication of loosening and shifting of suture points.

[0040] (2) The columella main body 1 and the inner footrest area 8 are designed to be integrated: a bionic shape of the footrest area can be formed, avoiding the problem of narrowing of the footrest area shape and enlargement of the nostrils caused by the upward movement of the original footrest area cartilage during rhinoplasty. It can also solve surgical problems such as congenital absence of the footrest area and iatrogenic absence of the footrest area. This design can control the shape of the middle and lower part of the nostril, forming a teardrop-shaped shape required for aesthetics, and the nostril ventilation volume can be controlled by the size of the nostril. The combination of the inner footrest area 8 and the subnasal point support platform 4 can also improve the problem of exposed nostrils. (The present invention reduces the difficulty of surgery by also arranging the columella main body 1 and the inner footrest area 8 in one piece: the existing rhinoplasty bracket does not take aesthetic issues into consideration, and all aesthetic issues need to be controlled by the doctor, which makes the surgery more difficult. The present invention helps patients form a teardrop-shaped or elliptical nostril shape by setting the inner footrest area 8, which is a bionic protrusion, thereby reducing the difficulty of surgery for doctors).

[0041] (3) Bionic design of the dome support part 3 of the bracket: the folded area at the back of the dome support part 3 is connected to the top of the nasal septum clamping area, so that the dome support part 3 has a better supporting base; the multi-angle folding of the dome support part 3 is conducive to improving the supporting force of the dome support part 3 itself; the bionic shape of the dome support part 3 allows the surgeon to easily control the height, width, and important angles of the nose tip, making the nose tip shape more bionic; the rounded nose tip bracket makes the local force on the nose tip more uniform, and combined with the appropriately thickened soft silicone protective layer on the nose tip, the nose tip bracket is less likely to have complications such as secondary deformation and prosthesis penetration; after the rhinoplasty bracket is implanted, the thickened soft silicone on the nose tip can appropriately raise the height of the nose tip performance point, and also make the nose tip have a more realistic feel. The dome support part 3 in the present invention is completely consistent with the formation method of the natural nose tip of the human body. It is a true bionic structure with good aesthetics and feel, and meets the mechanical concept of triangular stable support.

[0042] (4) The outer crura support portion 2 of the stent is integrated with the columellar body 1 through the dome support portion 3. By suturing and fixing the outer crura support portion 2 of the stent to the outer crura of the human alar cartilage, mechanical support is effectively provided to the outer crura of the human alar cartilage, solving problems in rhinoplasty such as poor alar cartilage development and alar retraction. This avoids the problem of costal cartilage fragility in the prior art, where doctors use costal cartilage pieces to sew the alar reinforcement plate.

[0043] (5) In the present invention, the end of the columella main body 1 that fits with the upper jaw of the human body is also provided with a subnasal point support platform 4 for supporting the tissue under the subnasal point of the human body, and the subnasal point support platform 4 extends forward and downward along the upper jaw; the end of the subnasal point support platform 4 connected to the columella main body 1 is a small end, and the other end extends forward and downward to form an enlarged end; the design of the bracket subnasal point support platform 4 allows the subnasal point raised during the operation to be maintained (in the absence of support, the height of the subnasal point is prone to gradually fall back after the operation), (the upper lip angle of the human columella is 95-100°), forming a better side face; the enlarged area of ​​the subnasal point support platform 4 is conducive to pushing the nose threshold toward the nasal cavity, forming a better nose threshold, and the connection form of the subnasal point support platform 4 combined with the inner footrest area 8 can effectively improve the poor appearance of exposed nostrils and form a better frontal appearance.

[0044] (6) As shown in Figures 1 to 5, the columellar body 1 of the present invention mimics the functions of the medial crus of the human alar cartilage and the medial footplate. It is a composite structure, and the columellar body 1 can function as two single structures, the columellar body and the medial crus of the alar cartilage. In order to control the overall thickness of the columellar body 1, the morphology of the medial crus of the human alar cartilage on both sides is integrated into the columellar body 1, and no longer appears independently. This design can make the columellar body 1 thinner, thereby making the rhinoplasty stent of the present invention have a higher biomimetic quality (biomimetic quality includes aesthetics and feel).

[0045] (7) As shown in Figures 1 to 5, the bionic rhinoplasty stent is provided with a plurality of holes. Specifically, the bionic rhinoplasty stent is provided with holes 5 in the main columella area and holes 6 in the lateral crura support portion. The holes facilitate the growth of human tissue, so that a permanent fixation is formed between the bionic rhinoplasty stent and the tissue. Human tissue fluid can enter the area sandwiched by the bionic rhinoplasty stent through the holes to maintain the nutritional supply of the sandwiched tissue (the nasal septum cartilage only needs tissue fluid exchange to maintain its original shape. If the nasal septum cartilage softens, the stent will lose its sufficiently strong "foundation", making it difficult to maintain the upright and three-dimensional beauty of the nose). Due to the limitations of the columella main body 1 and the lateral crura support portion 2, the hole 5 in the main columella area is larger in diameter, while the hole 6 in the lateral crura support portion is smaller in diameter. When the bionic rhinoplasty stent is permanently fixed to the nasal tissue, the capsular contracture force formed on the surface of the silicone stent is relieved by the anchor points of the connective tissue in the holes, which greatly reduces the degree of skin displacement caused by capsular contracture after the silicone prosthesis is implanted; and the holes in certain special parts can also play a role in local shaping after the tissue grows in, such as the columella main body area hole 5 on the columella main body 1. The hole at the upper end is conducive to the morphological stability between the dome support part 3 of the rhinoplasty stent and the dome part of the human nasal alar cartilage; the hole in the middle and lower ends of the columella is conducive to the formation and stabilization of the ridge of the mucosa around the inner foot pedal area 8, so that the local mucosa around the inner foot pedal area 8 will not have a floating feeling (if a large area of ​​skin / mucosa is covered with silicone plane, the skin is more likely to be pulled up or lifted up under the action of external force, and the fit is significantly reduced, similar to a life buoy floating on the horizontal surface, which is referred to as a floating feeling).

[0046] In addition, the bionic protrusions of the subnasal point support platform 4 and the inner footrest area 8 of the present invention can meet the needs of some people after molding. The doctor can also further carve the subnasal point support platform 4 and the bionic protrusion according to the specific needs of the user, or even remove them, which is very convenient. Adjustment of the height of the rhinoplasty: When the nasal septum clamping area 1 of the rhinoplasty bracket is sutured with the human nasal septum, the position of the suture point can be determined by the height and angle relationship between the rhinoplasty bracket and the nasal septum cartilage, and the height of the columella support area is finally formed. (That is to say, the main body of the columella does not have to be completely placed on the bone surface below, and can be appropriately cut or suspended.) This allows the bionic rhinoplasty bracket to meet the needs of most people without having to design too many models.

[0047] In summary, the material problems, aesthetic detail control problems, complications problems, surgical difficulty problems, surgical difficulty solving problems, and bionics problems involved in existing rhinoplasty stents can all be effectively solved through the rhinoplasty surgical stent of the present invention.

[0048] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A bionic rhinoplasty stent, characterized in that: The bionic rhinoplasty support includes a columella area and a septum clamping area connected to the columella area and used to clamp the nasal septum. The columella area is located in front of the septum clamping area; the columella area includes a columella main body for supporting the human columella, and the left and right sides of the columella main body are connected to the lateral crus support parts for supporting the lateral crus of the human alar cartilage, and the columella main body and the lateral crus support parts are connected with an arched dome to form an integrated structure. The septum clamping area includes two septum clamping plates for clamping the human nasal septum cartilage, and the septum clamping plates are connected to the columella main body.

2. The bionic rhinoplasty stent according to claim 1, characterized in that: A bionic protrusion for imitating the biological structure of the inner foot pedal of the human alar cartilage is provided on the side of the columella body facing the outer foot support portion. The bionic protrusion is the inner foot pedal area, which is used to control the shape and size of the nostril.

3. The bionic rhinoplasty stent according to claim 1, characterized in that: A dome support portion formed by the upward arch of the lateral crus support portion is provided between the columella main body and the lateral crus support portion, and the dome support portion is used to support the dome portion of the nasal alar cartilage of the human body.

4. The bionic rhinoplasty stent according to claim 3, characterized in that: The thickness of the dome supporting portion is greater than the thickness of the non-dome supporting portion, and the thickness of the non-dome supporting portion gradually decreases from the inside to the outside.

5. The bionic rhinoplasty stent according to claim 1, characterized in that: The end of the columella body that fits with the upper jaw of the human body is also provided with a subnasal point support platform for supporting the tissue under the subnasal point of the human body, and the subnasal point support platform extends forward and downward along the upper jaw.

6. The bionic rhinoplasty stent according to claim 5, characterized in that: The end of the subnasal support point platform connected to the main body of the columella is the small end, and the other end extends forward and downward to form an enlarged end.

7. The bionic rhinoplasty stent according to claim 1, characterized in that: The columella body mimics the functions of the inner crus and pedal of the human nasal alar cartilage, and is a composite structure that can serve as the supporting structure function of the columella body and the inner crus function.

8. The bionic rhinoplasty stent according to claim 1, characterized in that: The bionic rhinoplasty bracket includes an inner bracket and an outer bracket arranged in sequence from the inside to the outside. The inner bracket and the outer bracket are bonded to each other. Both the inner bracket and the outer bracket are silicone brackets, and the hardness of the inner bracket is higher than that of the outer bracket.

9. The bionic rhinoplasty stent according to claim 1, characterized in that: The bionic rhinoplasty bracket is provided with a plurality of holes, which facilitate the growth of human tissue, forming a permanent fixation between the nasal tissue and the bionic rhinoplasty bracket. The holes are also conducive to the infiltration of tissue fluid, maintaining the nutritional supply of the tissue in the clamped area.

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