Intranasal dilator

Abstract

The invention belongs to the technical field of medical instruments, and relates to an intranasal dilator which comprises a nose clip and two annular intranasal supports symmetrically arranged in two nasal channels. The nose clip semi-surrounds and is fixed at the lower end of the nasal septum; the two intranasal supports are detachably connected and fixed to the two branches of the nose clip respectively, and a user adjusts the size of the intranasal dilator by adjusting the perimeter of each annular intranasal support. Three advantageous technologies of a split structure, an annular intranasal stent and size adjustment are integrated in a simple, safe and reliable mode, and the performance of the intranasal dilator is comprehensively improved.

Description

A nasal dilator Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an intranasal dilator. Background Art

[0002] A significant number of people suffer from nasal obstruction. This condition often occurs in the nasal valve area, the narrowest part of the nasal passage. This area, located deep within the nasal vestibule, presents the greatest respiratory resistance. Swelling, hyperplasia, or enlargement of the nasal valve tissue, or a deflection of the nasal septum in this area, can lead to nasal obstruction. This condition can cause symptoms such as nasal breathing difficulties, mouth breathing, and snoring, causing significant inconvenience in patients' daily lives.

[0003] A nasal dilator is a medical device that uses physical means to relieve nasal obstruction. Its core structure consists of two nasal stents placed in the nasal passages on both sides and a middle part located near the nasal septum for connecting the two nasal stents. The nasal stents support and expand the nasal passages from the inside, especially the nasal valve area, thereby improving the air permeability of the nasal passages.

[0004] Existing nasal dilators can be divided into two categories according to the source of the expansion force. The first category is the "external nasal elastic dilator", which uses the rebound force of the middle part located outside the nose to expand the nasal passage. Its nasal stent is used to transmit the rebound force to the inner wall of the nose wing. The invention patent with application publication number US20210085509A1 "Nasal device for improving nasal breathing", the invention patent with application publication number JP2012016602A "NASAL DILATOR AND USE THEREOF", the invention patent with application publication number US11628083B1 "Nasal dilator with columella retainer for resisting withdrawal and adjustable sections for optimizing fit, comfort, and breathing performance", and the invention patent with application publication number US6863066B2 "Adjustable nasal dilator filter" are all such nasal dilators. The advantages of this type of nasal dilator are its simple structure, strong localized support for the nose wings, and good versatility. However, its disadvantages are: First, the distance between the middle portion providing the rebound force and the nose wings, and the direction of the dilator's dilator force acting on the inner wall of the nose wing are not conducive to the dilator's fixation, making it prone to distortion and difficult to wear stably. Second, the dilator's dilator force is concentrated on the nose wings, resulting in high localized pressure, which can easily irritate the nasal cavity and cause discomfort. Third, the main body of the dilator crosses the middle of both nasal passages, creating significant resistance to breathing.

[0005] The second type of intranasal dilator is the "intranasal elastic dilator", whose expansion force comes from the support force or rebound force of the intranasal stent itself, and the middle part does not provide rebound force. The middle part of this type of intranasal dilator can provide a fixing function, which is conducive to stable wearing; in addition, the area of ​​action of its expansion force is usually larger than that of the first type of dilator, thereby reducing the pressure and irritation on the inner wall of the nasal passage. In summary, the overall performance of the second type of intranasal dilator is better than that of the first type of intranasal dilator. The intranasal stents of this type of intranasal dilator can be divided into three types: ring stents, U-shaped stents, and H-shaped stents.

[0006] The invention patent "Nasal dilator" with application publication number US6978781B1, the invention patent "Nasal dilator" with application publication number US5895409A, and the invention patent "Nasal dilator" with application publication number US20060266367A1 have an annular nasal stent, whose outer wall adheres to and supports the inner wall of the nasal passage. The central axis of the annular structure is parallel to the nasal passage, and the respiratory airflow passes through its inner cavity that runs through it from top to bottom. Once inserted to a certain depth in the nasal passage, the ring stent provides 360° support and expansion force against the inner wall of the nasal passage. Its large contact area with the nasal cavity makes it comfortable to wear. When made of flexible materials, the stent can adapt well to round, oval, narrow, or irregularly shaped nasal passages, providing a uniform and gentle expansion force. Furthermore, the large contact area between the stent and the inner wall of the nasal passage increases friction between them, strengthening the dilator's fixation. Furthermore, the ring structure also helps strengthen the stent's radial support and expansion effect. Finally, the ring stent does not cross the nasal passage, resulting in the lowest respiratory resistance of all nasal stents. A disadvantage of the ring stent is that its circumference is fixed and its size cannot be adjusted. Multiple sizes are required to accommodate different nasal passages. As a disposable product, its trial cost is high and it occupies more shelf space, reducing its versatility and practicality. Furthermore, two ring stents with identical circumferences are only suitable for bilaterally symmetrical nasal passages and are not suitable for users with asymmetric nasal passages, such as those with a deviated septum.

[0007] Patents US8491622B2, "Multi-Layer Internal NASAL Dilator with Tubular Expanders and Compound Delivery Protrusions," and CN108348350A, "A Nasal Dilator," feature U-shaped stents. The U-shaped stent is formed by removing a portion of the sidewall of a ring-shaped stent. The openings in the sidewalls of the U-shaped stent allow for adjustable circumference, improving its adaptability to nasal passages of varying sizes and making it suitable for users with asymmetric nasal passages. The disadvantages of the U-shaped stent are: first, its open structure results in a weaker expansion force than a ring-shaped stent; second, its open structure also results in a smaller area of ​​expansion force than a ring-shaped stent, and the edge of the opening may irritate the inner wall of the nasal passage; third, the U-shaped stent has a limited range of size adjustment, requiring multiple sizes to accommodate nasal passages of varying sizes. It is also unsuitable for users with severely asymmetric nasal passages. In summary, the U-shaped bracket slightly improves versatility compared to the ring bracket, but loses some expansion force and comfort.

[0008] The invention patent "Internal nasal dilator and delivery mechanism" with application publication number US7055523B1 and the invention patent "Device for improving air flow through a nasal cavity during physical activity such as sporting pursuits" with application publication number US20150196420A1 have an H-shaped nasal stent, which is composed of two roughly parallel sheet structures and support arms connected to the two. From a top-down perspective, the three are roughly "H"-shaped. When worn, one sheet structure fits the nasal septum, and the other sheet structure fits and supports the inner wall of the nose. The two are connected by one or more support arms across the nasal passage. The advantage of the H-shaped bracket is that it has strong local support for the nose wing; its disadvantages are: first, the contact area with the inner wall of the nasal passage is small, which can easily irritate the nasal passage and is less comfortable than the ring and U-shaped brackets; second, its core support arm crosses the middle of the nasal passage, and its resistance to respiratory airflow is greater than that of the ring and U-shaped brackets; third, due to the limitation of the support arm, its versatility is poor, and multiple sizes need to be set to adapt to nasal passages of different sizes.

[0009] Furthermore, based on their structure, nasal dilators can be categorized as either one-piece or two-piece. Existing nasal dilators typically utilize a one-piece structure, meaning they are injection-molded or compression-molded in a single mold using a single material. This is because nasal dilators are smaller in size, making it difficult to ensure reliable connections with a two-piece structure. Disassembly poses a risk of aspiration and suffocation, whereas the risk of disassembly with a one-piece structure is relatively low. However, one-piece structures have the following disadvantages: First, they can only be made of a single material, which prevents optimal performance. For example, when softer materials are used, the center portion struggles to grip the nasal septum, significantly reducing its retention function. When harder materials are used, the stent easily irritates the nasal passages and significantly reduces its adaptability to different nasal passage shapes. Second, the one-piece structure also prevents the stent from being removable or replaceable. Third, manufacturing is difficult and costly, making it difficult to add additional functional features. Compared to the drawbacks of one-piece structures, ensuring reliable connections with a two-piece structure can overcome many of the limitations of one-piece structures and significantly improve the performance of nasal dilators.

[0010] Furthermore, some nasal dilators have a size adjustment function, such as the nasal dilators of US6863066B2 and US20150196420A1 mentioned above, but the performance of both has certain limitations. The nasal dilator of US6863066B2 is an "external nasal elastic dilator", which has the inherent disadvantages of this type of dilator, such as poor wearing stability, low comfort, and obstruction of breathing. In addition, it adjusts the length of the circular metal wire by inserting the circular metal wire into the tubular structure, the size adjustment range is small, and the size locking is unreliable. The nasal dilator of US20150196420A1 has an H-shaped bracket, which includes two sheet-like structures that fit the nasal septum and the inner wall of the nose wing respectively, and an arc-shaped support rib. As an innovation, the nasal bracket also includes an annular belt for adjusting the size and providing auxiliary support force. Since it continues the design concept of the traditional H-shaped bracket and integrated structure, it has the following limitations: First, the size adjustment range is small, and multiple size models are still required. On the one hand, the elastic expansion and contraction range of its support ribs is limited, which limits the adjustment range of the annular belt; on the other hand, during the adjustment process, the annular belt will pull the support ribs to one side and twist, and the torque of the support ribs further limits the adjustment range of the annular belt. Second, it is an "integrated structure formed by a one-time mold", so it has the inherent disadvantages of the integrated structure mentioned above. Third, as an auxiliary structure, its annular belt does not have the advanced performance of an independent annular bracket. Since the expansion force of its intranasal bracket mainly comes from the support arm, and this expansion force is mainly applied to the nose wing, its annular belt cannot autonomously apply a 360° expansion force to the inner wall of the nasal passage like the annular bracket, nor can it fully fit the inner wall of the nasal passage, so it cannot obtain the best matching and fixation effect with the nasal passage.

[0011] In summary, existing technologies are still unable to take into account the core performance of intranasal dilators, such as expansion function, wearing stability, versatility and comfort.

[0012] Summary of the Invention

[0013] The present invention belongs to the above-mentioned "intranasal elastic dilator" and adopts a split plug-in structure. It has an annular intranasal bracket with adjustable size. One size model can match nasal passages of all sizes. The purpose of the present invention is to comprehensively improve the dilation function, wearing stability, versatility and comfort of the intranasal dilator.

[0014] To achieve the above-mentioned object, the present invention provides a nasal dilator, characterized in that the nasal dilator comprises: a nose clip and two nasal stents;

[0015] The nose clip comprises: a nose clip body that is roughly U-shaped or C-shaped and two fixing clips that are symmetrically arranged and integrally connected to the two branch ends of the nose clip body;

[0016] The intranasal support is naturally unfolded into a flat belt-like structure, which is detachably connected and fixed to the fixing clip of the nose clip, and is curled to form a ring structure with adjustable circumference.

[0017] As an improvement to the above-mentioned intranasal dilator, the axis of the annular structure is substantially parallel to the axis of the nasal passage in which it is located.

[0018] As an improvement of the above-mentioned nasal dilator, the fixing clip of the nose clip includes: an annular clip outer frame, a fixing hole extending vertically through the clip outer frame, and a clip opening being provided outside the fixing hole;

[0019] The intranasal stent includes a stent body and a stent tail;

[0020] One end of the bracket body is integrally connected to the bracket tail; the bracket tail comprises: an annular outer frame with a socket penetrating the outer frame; the outer frame of the bracket tail surrounds and is fixed to the clip outer frame;

[0021] A portion of the bracket body is fixed in the fixing hole and cooperates with the fixing clip to adjust and fix the circumference of the annular structure.

[0022] As an improvement to the above-mentioned nasal dilator, the fixing clip of the nose clip comprises: an annular clip outer frame, with a fixing hole extending vertically therethrough; the fixing hole is divided into an inner hole and an outer hole, with a partition between the inner hole and the outer hole;

[0023] The intranasal stent includes a stent body and a stent tail;

[0024] One end of the bracket body is integrally connected to the bracket tail; the bracket tail has a tail end at an end away from the bracket body, and the side circumference of the tail end is greater than the side circumference of the bracket tail; the bracket tail has a protruding tail tooth at an end close to the bracket body; the bracket tail is inserted into the outer hole, and the tail end and the tail tooth are exposed at both ends of the outer hole, so that the nasal bracket and the nose clip are fixed to each other;

[0025] A portion of the bracket body is fixed in the inner hole and cooperates with the fixing clip to adjust and fix the circumference of the annular structure.

[0026] As an improvement to the above-mentioned intranasal dilator, the stent body of the intranasal stent further has a plurality of fixed-spaced teeth that cooperate with the fixed clips to adjust and fix the circumference of the annular structure.

[0027] As an improvement to the above-mentioned intranasal dilator, the upper side and / or lower side of the stent body of the intranasal stent is provided with a serrated or wavy structure, which cooperates with the fixing clip to adjust and fix the circumference of the annular structure.

[0028] As an improvement of the above-mentioned nasal dilator, the fixing clip of the nose clip includes: an annular clip outer frame, and a fixing hole extending vertically through the clip outer frame;

[0029] The intranasal stent includes a stent body;

[0030] Self-fixing devices with adjustable fixing positions extend outward from both ends of the bracket body, and are curled, overlapped and fixed to form a ring structure.

[0031] As an improvement to the above-mentioned nasal dilator, the nose clip and the nasal stent are made of different materials; wherein, the nose clip is made of a harder elastic material, and the nasal stent is made of a softer elastic material.

[0032] As an improvement of the above-mentioned intranasal dilator, each intranasal stent is provided with at least one strip-shaped support spoke with both ends integrally connected to the inner wall of the intranasal stent.

[0033] As an improvement of the above-mentioned intranasal dilator, a structure for accommodating compounds is provided inside the annular structure of each intranasal stent, which can release compounds into the nasal passage or absorb specific substances in the filtered nasal passage airflow.

[0034] The nasal dilator disclosed in the present invention combines three advantageous technologies: a split structure, an annular nasal stent, and a size adjustment function in a concise and reliable manner, thereby comprehensively improving the performance of the nasal dilator. Specifically,

[0035] 1. It adopts a split plug-in structure. The intranasal stent is made of a softer elastic material, which fits the inner wall of the nasal passage softly to ensure comfort; the nose clip is made of a harder elastic material than the intranasal stent, so that it can stably clamp and fix it on the lower part of the nasal septum to ensure stability when wearing; at the same time, the nose clip is made of a harder material, which is conducive to fixing the intranasal stent, avoiding its loosening and twisting deformation, and ensuring the reliable locking of the teeth; in addition, the intranasal stent can be easily disassembled, which is convenient for users to replace intranasal stents with different functions, or fill or replace various compounds on the intranasal stent; furthermore, the split plug-in design can split the complex overall structure into multiple simple components for manufacturing, thereby significantly reducing manufacturing costs and facilitating the manufacture of more complex intranasal dilators.

[0036] 2. The nasal stent adopts a soft and elastic ring structure for maximum comfort. First, the ring stent provides 360-degree support to the inner wall of the nasal passage, obtaining the largest force-bearing area and minimizing the pressure and irritation of the nasal stent on the inner wall of the nasal passage. Second, the soft ring structure can best adapt to nasal passages of different shapes, such as round, oval, narrow and long, and irregular shapes, and evenly applies expansion force to the nasal passage to achieve excellent comfort. Third, the good fit increases the friction between the nasal stent and the inner wall of the nasal passage, further improving the stability of wearing. Fourth, the ring structure can provide excellent radial support, so that the nasal dilator has excellent expansion performance. Fifth, the ring stent is located at the periphery of the nasal passage, does not block the airflow in the nose, and has excellent ventilation performance.

[0037] 3. The insertion point and size adjustment mechanism are integrated in a simple and reliable manner. The adjustment mechanism can adjust the size of the nasal stent over a wide range, thus achieving high versatility: one size model can fit all nasal passages. Each size adjustment position can also be securely locked. In addition, the nasal dilator of the present invention is also suitable for users with varying degrees of bilateral nasal asymmetry.

[0038] 4. By adjusting the support angle, adding support spokes, etc., the performance of the nasal dilator can be further adjusted and improved. At the same time, by adding new functional structures to the nasal stent, multiple functions such as releasing compounds, absorbing and filtering specific substances in the respiratory airflow can be easily added. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1A is a side view of a human nose;

[0040] FIG1B is a side cross-sectional view of a human nose;

[0041] FIG1C is a bottom view of a human nose;

[0042] FIG2 is a schematic structural diagram of a first preferred embodiment of the present invention;

[0043] FIG3 is a schematic structural diagram of the first preferred embodiment of the present invention from another angle;

[0044] FIG4 is a front view of a first preferred embodiment of the present invention;

[0045] FIG5 is a top view of a first preferred embodiment of the present invention;

[0046] FIG6 is a side view of a first preferred embodiment of the present invention;

[0047] FIG7 is a bottom view of the first preferred embodiment of the present invention after being worn;

[0048] FIG8 is a front view of a nose clip according to a first preferred embodiment of the present invention;

[0049] FIG9 is a top view of an intranasal stent curled into a ring shape according to the first preferred embodiment of the present invention;

[0050] FIG10 is a front view of an expanded intranasal stent according to the first preferred embodiment of the present invention;

[0051] FIG11 is a front view of the first preferred embodiment of the present invention in which the angle between two intranasal stents is optimized;

[0052] FIG12 is a cross-sectional view of the first preferred embodiment of the present invention at the line ii' in FIG4 after optimizing the fixing clip;

[0053] FIG13 is a schematic structural diagram of an expanded intranasal stent with an additional medicine groove according to the first preferred embodiment of the present invention;

[0054] FIG14A is a schematic structural diagram of a deployed intranasal stent with an additional release element according to the first preferred embodiment of the present invention;

[0055] FIG14B is a schematic diagram of a disassembled release element of a deployed intranasal stent with an additional release element according to the first preferred embodiment of the present invention;

[0056] FIG15A is a schematic structural diagram of an expanded intranasal stent with an additional medicine barrel according to the first preferred embodiment of the present invention;

[0057] FIG15B is a schematic structural diagram of an expanded intranasal stent with an additional medicine barrel according to the first preferred embodiment of the present invention from another angle;

[0058] FIG16 is a top view of the first preferred embodiment of the present invention with additional support spokes;

[0059] FIG17 is a schematic structural diagram of a second preferred embodiment of the present invention;

[0060] FIG18 is a schematic structural diagram of the second preferred embodiment of the present invention from another angle;

[0061] FIG19 is a front view of a second preferred embodiment of the present invention;

[0062] FIG20 is a top view of a second preferred embodiment of the present invention;

[0063] FIG21 is a side view of a second preferred embodiment of the present invention;

[0064] FIG22 is a front view of a nose clip according to a second preferred embodiment of the present invention;

[0065] FIG23 is a top view of an intranasal stent curled into a ring shape according to a second preferred embodiment of the present invention;

[0066] FIG24 is a front view of an expanded intranasal stent according to a second preferred embodiment of the present invention;

[0067] FIG25 is a schematic structural diagram of a third preferred embodiment of the present invention;

[0068] FIG26 is a top view of a third preferred embodiment of the present invention;

[0069] FIG27 is a schematic structural diagram of a nose clip according to a third preferred embodiment of the present invention;

[0070] FIG28 is a schematic structural diagram of an intranasal stent curled into a ring shape according to a third preferred embodiment of the present invention;

[0071] FIG29 is a schematic structural diagram of an unfolded intranasal stent according to a third preferred embodiment of the present invention;

[0072] FIG30 is a side view of a deployed intranasal stent according to a third preferred embodiment of the present invention.

[0073] Reference numerals 1, nasal dilator 2, nasal clip 3, nasal support 9, nose 11, front of nose 12, back of nose 13, top of nose 14, bottom of nose 21, fixing clip 22, nasal clip body 31, support body 32, support tail 34, latch 35, medicine groove 36, release element 37, medicine barrel 38, snap 39, supporting spoke 91, nasal septum 92, nose wing 93, nose bridge 94, nostril 95, nasal passage 96, nasal passage inner wall 97, nasal passage axis 98, nasal cavity 99, nose floor 211, clip outer frame 212, fixing hole 213, clip opening 214, inner hole 215, outer hole 221, connecting beam 222, branch 321, outer frame 322, socket 323, tail end 324, tail tooth 325, middle portion 361, fixing tube 362, charging insert 381, snap plug 382, ​​snap hole 2111, upper wall 2112, lower wall 2113, inner wall 2114, outer wall 2115, partition 2116, fixing hook DETAILED DESCRIPTION

[0074] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0075] The term "connection" as used in the present invention refers to two tangible objects being connected together in an integral or detachable manner, and the connection methods include but are not limited to: bonding, welding, plugging, screw connection, and snap connection.

[0076] The term "axis" as used herein refers to the central symmetric axis of a tubular or cylindrical object. For non-standard tubular or cylindrical objects, they can be approximated to a standard tubular or cylindrical object, and the axis of the standard tubular or cylindrical object can be used as the approximate axis. For example, FIG1B depicts nasal passage axis 97.

[0077] The term "compound" described in the present invention is not a strict chemical definition, but should include pure substances, compounds and mixtures in solid and liquid states, as well as other material forms or combinations suitable for the present invention. The compound can be medicinal or non-medicinal, including but not limited to drugs and aromatic substances.

[0078] As shown in FIG. 1A , various directions of the nose according to the present invention are: the front 11 of the nose, the back 12 of the nose, the top 13 of the nose, and the bottom 14 of the nose.

[0079] As shown in FIG1B , the object in the nasal passage 95 has its side closer to the nasal passage axis 97 as the “inside” and its side farther from the nasal passage axis 97 as the “outside”.

[0080] To address the defects of existing nasal dilators, this application proposes improvements from the following aspects: first, a split structure is adopted while ensuring connection reliability; second, a ring-shaped nasal bracket is used and a soft elastic material is used; third, the adjustable range of the size adjustment mechanism is expanded to achieve higher versatility.

[0081] As shown in FIG2 , in the nasal dilator 1 of the present invention, except for the nose clip 2, the nose clip body 22, and the connecting bridge 221, the remaining components are two or two groups of identical components symmetrically arranged for the two nasal passages. Therefore, in the description of the nasal dilator 1 of the present invention, except for the nose clip 2, the nose clip body 22, and the connecting bridge 221, the remaining components are one or one group of two or two groups of identical components symmetrically arranged.

[0082] As shown in Figures 1A, 1B, and 1C, the nasal dilator 1 of the present invention is applied to a human nose 9. The nose 9 is a visible facial protrusion comprising the nasal septum 91, the nostrils 92, the nasal bridge 93, and the nasal floor 99, as well as the two nasal passages 95 formed by these. The outlets of the two nasal passages 95 are the two nostrils 94. The inner wall 96 of the nasal passage is formed by the inner surface of the various parts surrounding the nasal passages 95. In the present invention, the nasal passage 95 is limited to the nasal vestibule contained by the nose 9 and does not include the nasal cavity 98.

[0083] Example 1.

[0084] Figures 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14A, 14B, 15A, 15B, and 16 illustrate a first embodiment of the present invention. As shown in Figures 2, 3, 4, 5, 6, and 7, the present invention provides a nasal dilator 1 for dilating a nasal passage 95 within a nasal passage 95. The nasal dilator 1 comprises a nasal clip 2 and two symmetrically arranged nasal supports 3. The nasal dilator 1 is a split plug-in structure, wherein the nasal clip 2 and the two nasal supports 3 are independent components, and the two ends of the nasal clip 2 are detachably connected to the two nasal supports 3 by plugging. As an optimization, the nasal clip 2 and the two nasal supports 3 can be made of different materials to achieve the best performance of the nasal dilator 1.

[0085] As shown in Figure 8, the nose clip 2 is a U-shaped or C-shaped integrated structure, which includes: two symmetrically arranged fixing clips 21 and a nose clip body 22. Each fixing clip 21 includes: a clip outer frame 211, a fixing hole 212 and a clip opening 213. The fixing clip 21 is used to connect and fix the intranasal bracket 3, and cooperate with the intranasal bracket 3 to achieve the size adjustment function. The specific assembly and size adjustment methods will be described in detail below. The nose clip body 22 is a U-shaped or C-shaped structure, which includes: a connecting beam 221 and two symmetrically arranged branches 222. The two fixing clips 21 are respectively connected to the upper parts of the two branches 222 in an integrated manner.

[0086] As shown in FIG7 , when worn, the nose clip 2 half-circles the lower portion of the nasal septum 91. The connecting bridge 221 is positioned below the nasal septum 91, and the two branches 222 are inserted, in whole or in part, into the two nostrils 94, respectively. The two fixing clips 21 are positioned within the two nasal passages 95, respectively. The two fixing clips 21 are plug-connected to the two nasal supports 3 symmetrically positioned within the two nasal passages 95. At this point, the inner sides of the two branches 222 and / or the two fixing clips 21 fit against the nasal septum 91, and the nose clip 2 half-circles the wider lower end of the nasal septum 91, making it difficult for the nose clip 2 to detach from the nasal septum 91. As an optimization, the nose clip 2 applies a clamping force to the nasal septum 91. At this point, the two fixing clips 21 and / or the two branches 222 clamp the nasal septum 91, further securing the nose clip 2 to the nasal septum 91. As a further optimization, the two prongs of the nose clip 2, consisting of two fixing clips 21 and two branches 222, are symmetrically provided with a protrusion facing the nasal septum on the side facing the nasal septum. The distance between the two protrusions is less than the width of the lower end of the nasal septum 91. When worn, the two protrusions are located above the wider part of the nasal septum 91 to prevent the nose clip 2 from falling off the nasal septum. As a further optimization, the surface of the fixing clip 21 and / or branches 222 that contacts the nasal septum 91 is appropriately enlarged to reduce the pressure exerted by the nose clip 2 on the nasal septum 91.

[0087] In summary, the nose clip 2 can achieve the following functions: first, connect and fix the intranasal stent 3; second, fix the intranasal dilator 1 on the nasal septum 91; third, cooperate with the intranasal stent 3 to achieve size adjustment function.

[0088] In order to ensure the realization of various functions of the nose clip 2, it usually uses a harder elastic material to obtain the following benefits: first, it makes itself more reliably fixed on the nasal septum 91; second, it more firmly connects and fixes the intranasal bracket 3, so that the intranasal bracket 3 maintains a suitable posture and support angle when worn; third, it more reliably fixes the following latch 34 to avoid it from disengaging.

[0089] As shown in Figure 10 , before assembly, the naturally expanded nasal stent 3 is a flat, ribbon-like structure with a relatively wide width of 3 to 15 mm. This increases its contact area with the inner wall 96 of the nasal passage, thereby reducing the pressure caused by the expansion force. This wider width also facilitates a more stable fixation to the nose clip 2, maintaining a suitable posture and support angle when worn. Furthermore, the width of the expanded nasal stent 3 is the same as the height of the fixing hole 212, ensuring a stable fixation within the fixing hole 212 after installation. As an optimization, the width of the nasal support 3 at different positions may be different to achieve specific functions. For example, the width of the nasal support 3 may be increased at the nose wing to expand the contact area between the nasal support 3 and the nose wing, thereby improving comfort. For another example, in other embodiments, the upper side and / or lower side of the annular nasal support 3 is provided with a serrated or wavy structure, which cooperates with the upper wall 2111 or the lower wall 2112 so that the upper wall 2111 or the lower wall 2112 is stuck in the trough of the serrated or wavy structure, thereby adjusting and fixing the circumference of the annular structure of the nasal support 3. The thickness of the nasal support 3 is relatively small, ranging from 0.5 mm to 3 mm, to minimize its resistance to respiratory airflow and improve the matching ability of the nasal support 3 to nasal passages of different shapes. As an optimization, the thickness of the nasal support 3 at different positions may be different to achieve specific functions.

[0090] As shown in Figure 9, after assembly, the strip structure of the intranasal stent 3 is curled to form an annular structure, so that it has the following benefits of an annular stent: first, it applies a 360° expansion force to the inner wall of the nasal passage, reducing the pressure of the expansion force to a minimum to increase comfort; second, the annular structure provides excellent radial support and excellent expansion performance; third, it can deform to automatically match nasal passages with circular, elliptical, narrow or irregular cross-sections to obtain the best fit and comfort; fourth, the annular stent fits the inner wall of the nasal passage and has no structure or components located in the middle of the nasal passage, so its resistance to respiratory airflow is extremely small; fifth, its large contact area with the inner wall of the nasal passage can increase the friction between the intranasal stent 3 and the inner wall of the nasal passage, thereby fixing the intranasal stent 3 in the nasal passage 95. At this time, the intranasal dilator 1 has two fixing areas, the nasal septum 91 and the nasal passage 95, with excellent fixing effect.

[0091] As a further optimization, the intranasal bracket 3 is usually made of an elastic material that is softer than the nose clip 2 to improve the matching degree between the intranasal bracket 3 and nasal passages 95 of different shapes, thereby achieving the maximum fitting area to obtain the best comfort and fixation effect.

[0092] As shown in Figures 9 and 10, each intranasal stent 3 is an integrated structure, which includes: a stent body 31, a stent tail 32 and a plurality of latches 34. The stent body 31 is a strip-shaped structure, one end of which is integrally connected to the stent tail 32. The latches 34 are arranged on the inner surface of the stent body 31, and the number of the latches 34 can be increased or decreased according to actual needs, preferably 7. The stent tail 32 includes an outer frame 321 and a socket 322, which is connected to the fixing clip 21 by plugging, fixing the stent tail 32 to the nose clip 2, and becoming the first fixing part of the intranasal stent 3 on the fixing clip 21. The stent body 31 is curled to form an annular structure, and a part of the stent body 31 is detachably fixed in the fixing hole 212, becoming the second fixing part of the intranasal stent 3 on the fixing clip 21, and together with the stent tail 32, the intranasal stent 3 is fixed into an annular structure. In order to adjust the size of the intranasal stent 3, the user can select different latch teeth 34 to be clamped on the outer frame 211 of the clip as the second fixing part, so that the intranasal stent 3 can match nasal passages 95 of different sizes.

[0093] As shown in Figures 2, 3, 4, 5, 6, 8, 9, and 10, the nasal dilator 1 is assembled as follows: The upper portion of the fixing clip 21 is inserted into the insertion hole 322. The inner side of the outer frame 321 is squeezed and elastically expands outward to fit over the upper portion of the fixing clip 21. Next, the lower edge of the outer frame 321 is inserted into the fixing hole 212 through the clip opening 213, so that the bracket tail 32 wraps around and secures to the outer wall 2114. Next, the strip-shaped nasal stent 3 is rolled into a ring-shaped structure. Based on the size of the user's nasal passage, the lower edge of the bracket body 31 at that location is inserted into the fixing hole 212 through the clip opening 213 and secured. At this time, the total thickness of the outer frame 321 and the bracket body 31 stacked in the fixing hole 212 is equal to or slightly greater than the width of the fixing hole 212, so that the fixing hole 212 tightly surrounds or clamps the two, and the latches 34 there (the fourth and fifth latches counted from the end of the bracket body 31 away from the bracket tail 32 in Figure 5) are firmly stuck on both sides of the inner wall 2113. The part of the bracket body 31 fixed by the fixing hole 212 cooperates with the bracket tail 32 to keep the intranasal bracket 3 in an annular structure. At this time, the circumference of the annular structure is the length of the intranasal bracket 3 between the two fixed parts. In addition, the section of the bracket body 31 from the end away from the bracket tail 32 to the fixing hole 212 is located on the inner side of the annular structure, so it will not irritate the inner wall 96 of the nasal passage, and can support the intranasal bracket 3 from the inner side of the annular structure to enhance the expansion force of the intranasal bracket 3. Furthermore, after the outer frame 321 and the bracket body 31 are inserted into the fixing hole 212, the wedge-shaped structure of the fixing hook 2116 securely locks them in the fixing hole 212, preventing them from falling out of the fixing hole 212. Finally, the user selects different parts of the bracket body 31 to fix in the fixing hole 212, and then engages the corresponding latching teeth 34 on both sides of the inner wall 2113 to adjust and lock the circumference of the annular nasal bracket 3, thereby achieving size adjustment. If the user's nasal passages are of different sizes, the two symmetrically arranged nasal brackets 3 can be adjusted to different sizes to match them.

[0094] As a further optimization, as shown in FIG12 , by adjusting the cross-sectional shape of the inner wall 2113 so that its width close to the fixing hole 212 is narrowed, it is helpful to set more teeth 34 with smaller spacing on the bracket body 31 to achieve more precise adjustment.

[0095] As a further optimization, the intranasal stent 3 is not provided with a latch 34, and the total thickness of the outer frame 321 and the stent body 31 stacked in the fixing hole 212 is greater than the width of the fixing hole 212. At this time, the outer frame of the fixing hole 212 clamps and squeezes the two to achieve fixation of the annular structure of the intranasal stent 3.

[0096] As a further optimization, the annular intranasal bracket 3 is not provided with a latching tooth 34, and the upper side and / or lower side of the bracket body 31 is provided with a serrated or wavy structure, which cooperates with the upper wall 2111 or the lower wall 2112 so that the upper wall 2111 or the lower wall 2112 is stuck in the trough of the serrated or wavy structure, thereby adjusting and fixing the circumference of the annular structure of the intranasal bracket 3; as a further optimization, by adjusting the cross-sectional shape of the upper wall 2111 or the lower wall 2112 so that the width of the side close to the fixing hole 212 is narrowed, it is helpful to set a larger number of serrated or wavy structures with smaller spacing on the bracket body 31 to achieve more precise adjustment.

[0097] The size adjustment function of this embodiment has the following characteristics and benefits: First, high versatility: the intranasal bracket 3 is an independent structure, and any position of the bracket body 31 can be selected as the second fixed position in addition to the bracket tail 32, and the adjustable range is large, so that one size model can match nasal passages of all sizes. Second, reliable locking: during the assembly process of this embodiment, the latch 34 does not need to pass through the fixing hole 212 like the second embodiment, so the latch 34 with a larger height can be used, thereby improving the reliability of the locking. Third, simple and integrated structure: the connection part between the nose clip 2 and the intranasal bracket 3 has a simple structure, is safe and reliable, and has little resistance to the respiratory airflow. It integrates the two functions of plug-in fixation and size adjustment, so that this embodiment has the two advantages of a reliable split structure and a wide range of size adjustment.

[0098] After assembly, as shown in FIG4 , the annular structures of the two nasal stents 3 are generally in the same plane, which is generally perpendicular to the nasal passage axis 97. As an optimization, by changing the shape of the nose clip 2 or the angle of the fixing hole 212, the posture of the two nasal stents 3 in the nasal passage 95 can be adjusted to achieve the best expansion effect. For example, FIG11 shows an optimized structure in which the nose clip 2 is C-shaped and the two fixing clips 21 form a certain angle, so that the angle ∠A between the planes in which the annular structures of the two nasal stents 3 lie is between 90° and 180°.

[0099] When wearing, as shown in FIG7 , the user inserts the two annular nasal stents 3 into the two nasal passages 95, respectively. At this time, the axis of the annular nasal stents 3 is parallel to the axis 97 of the nasal passage, and the outer wall of the nasal stent 3 gradually fits and supports the inner wall 96 of the nasal passage. The respiratory airflow passes through the cavity that runs through the nasal stent 3 from top to bottom. The nasal stent 3 is pushed further into the nasal passage until it reaches a satisfactory expansion position. Simultaneously, the nose clip 2 is pushed upward so that it half surrounds and is fixed to the lower part of the nasal septum 91. At this time, the outer wall of the nasal stent 3 fully fits and supports the inner wall of the nasal passage, and the friction between the two fixes the nasal stent 3 in the nasal passage.

[0100] As a further optimization, utilizing the split, plug-in structure of this embodiment allows for convenient integration of at least one additional structure—a protrusion, groove, barrel-shaped, tubular, sheet-like, or other form—on the inner surface of the stent body 31, either integrally or by adhesive bonding or plugging. Compounds can then be applied to or within the surface of this additional structure. This structure enables the nasal dilator 1 of this embodiment to have additional functions, such as drug release and absorption of specific substances in the filtered airflow. Three specific optimization examples are described below.

[0101] As shown in Figure 13, three raised, square-shaped drug receptacles 35 are integrally formed on the inner surface of the stent body 31. These receptacles allow for the addition and retention of jelly-like or solid compounds. After assembly, the drug receptacles 35 face the inside of the annular structure. As respiratory air flows through the annular structure's inner cavity, the drug receptacles 35 release the compound into the inhaled airflow or absorb and filter specific substances within the inhaled airflow.

[0102] As shown in Figures 14A and 14B, a release element 36 is provided on the inner surface of the stent body 31. After assembly, the release element 36 is located inside the annular structure. The release element 36 consists of a fixed tube 361 integrally provided on the inner surface of the stent body 31 and a separate drug-loaded insert 362. The fixed tube 361 is a flexible tubular structure, and the drug-loaded insert 362 is an H-shaped structure with wide ends and a narrower middle. The drug-loaded insert 362 can be inserted and fixed within the fixed tube 361. The drug-loaded insert 362 has a porous structure, or can be a hollow structure with openings on the outer wall. It can absorb or load a compound and release the compound into the inhaled airflow.

[0103] As shown in Figures 15A and 15B , a medicine barrel 37 is integrally mounted on the inner surface of the holder body 31. This semi-circular barrel 37 is closed at one end and open at the other. Once assembled, the barrel 37 is located inside the annular structure, containing the compound, with its opening facing deep into the nasal passages. When respiratory air flows through the annular structure, the barrel 37 releases the compound into the inhaled airflow.

[0104] As a further optimization, as shown in Figure 16, to strengthen the support force of the intranasal stent 3, at least one support spoke 39 can be provided on the inner surface of the intranasal stent 3. The support spoke 39 is an arcuate ribbon structure, with both ends integrally connected to the stent body 31. When worn, the stent body 31 elastically deforms under pressure from the inner wall 96 of the nasal passage, and the support spoke 39 elastically deforms simultaneously. The rebound force of the support spoke 39 strengthens the expansion force of the intranasal stent 3 on the nasal passage 95.

[0105] In summary, this embodiment combines the three advantageous technologies of split structure, annular intranasal stent and size adjustment in a concise and reliable manner, thereby comprehensively improving the performance of the intranasal dilator 1.

[0106] Example 2.

[0107] Figures 17, 18, 19, 20, 21, 22, 23, and 24 illustrate a second preferred embodiment of the present invention. The overall structure of the nasal dilator 1 of this embodiment is similar to that of the first embodiment. The special features of this embodiment are that the fixing clip 21 and the bracket tail 32 differ slightly from the corresponding structures of the first embodiment.

[0108] As shown in Figure 22, the fixing clip 21 includes a clip outer frame 211, an inner hole 214, and an outer hole 215. The inner hole 214 is used to fix the area of ​​the stent body 31 where the teeth 34 are located, and the outer hole 215 is used to fix the stent tail 32. The outer frame 211 surrounds and encases the portion of the intranasal stent 3 located within the fixing clip 21 and includes an upper wall 2111, a lower wall 2112, an inner wall 2113, an outer wall 2114, and a partition 2115.

[0109] As shown in Figures 23 and 24, the intranasal stent 3 is an integrated structure comprising a stent body 31, a stent tail 32, and a plurality of latches 34. The stent body 31 is a strip-like structure, one end of which is integrally connected to the stent tail 32. The latches 34 are arranged on the inner surface of the stent body 31. The number of latches 34 can be increased or decreased according to actual needs, preferably six. The width of the stent body 31 gradually narrows at the end away from the stent tail 32 to facilitate smooth insertion into the hole. The stent tail 32 connects and secures the intranasal stent 3 to the fixing clip 21. The stent tail 32 includes a tail end 323, tail teeth 324, and a middle portion 325 located therebetween. The length of the middle portion 325 is equal to the depth of the outer hole 215, while the tail end 323 is larger than the outer hole 215, preventing it from passing through the outer hole 215. The cross-sectional shape and size of the stent body 31 and the middle portion 325 are approximately the same as those of the inner hole 214 and the outer hole 215, ensuring that these two parts can penetrate and be stably fixed in the two holes.

[0110] As shown in Figures 17, 18, 19, 20, 21, 22, 23, and 24, the nasal dilator 1 of this embodiment is assembled as follows: The end of the stent body 31 distal to the stent tail 32 is inserted through the outer hole 215. The stent body 31 is then fully inserted through the outer hole 215 until the tail teeth 324 are also passed through the outer hole 215. At this point, the tail end 323 and tail teeth 324 are respectively engaged on either side of the partition 2115, while the middle portion 325 is positioned within the outer hole 215, thereby securing the tail end 32 to the fixing clip 21 and forming the first securing portion of the stent 3 on the fixing clip 21. The stent body 31 is then curled into a ring-shaped structure, and the end of the stent body 31 distal to the stent tail 32 is passed through the inner hole 214. Based on the size of the user's nasal passage, the appropriate portion of the stent body 31 is secured within the inner hole 214, forming the second securing portion of the stent 3 on the fixing clip 21. This securing portion, along with the stent tail 32, maintains the ring-shaped structure of the stent 3. At this time, the latches 34 on both sides of the fixing part (the fourth and fifth latches counted from the end of the bracket body 31 away from the bracket tail 32 in Figure 20) are stuck on both sides of the inner wall 2113, locking the size of the intranasal bracket 3.

[0111] As a further optimization, the thickness of the end of the stent body 31 away from the stent tail 32 gradually decreases toward the distal end, making it easier to insert the end of the stent body 31 away from the stent tail 32 into the inner hole 214 and the outer hole 215. This is particularly true when the widths of the inner hole 214 and the outer hole 215 are smaller than the thickness of the stent body 3 and the intermediate portion 325. During assembly, the thinner end of the stent body 31 easily guides the intranasal stent 3 into the two holes, allowing the two holes to clamp, squeeze, and secure the intranasal stent 3. In this case, even without the latching teeth 34, the intranasal stent 3 can still be secured by this clamping force.

[0112] In addition, the various optimizations made in the first embodiment and the wearing method of the first embodiment are also applicable to this embodiment.

[0113] Compared with the first embodiment, the advantage of this embodiment is that: the nose clip 2 does not need to be provided with a clip opening 213, and the nasal bracket 3 is not easy to fall off the nose clip 2 during use; the weakness of this embodiment is that: during assembly, the latch teeth 34 and the tail teeth 324 need to pass through the inner hole 214 and / or the outer hole 215, so the height of the latch teeth is limited, which easily leads to disengagement, and the locking size effect is not as good as the first embodiment.

[0114] Example 3.

[0115] Figures 25, 26, 27, 28, 29, and 30 illustrate a third preferred embodiment of the present invention. The overall structure of the nasal dilator 1 of this embodiment is similar to that of the first embodiment. The unique features of this embodiment are: first, the fixing clips 21 and nasal stents 3 differ slightly from the corresponding structures of the first embodiment; second, the fixing method differs. Each nasal stent 3 of this embodiment is first self-fixed at the end-to-end overlapping region to form a ring structure before being fixed to the fixing clip 21. Furthermore, the fixing point of the nasal stent 3 on the fixing clip 21 is adjustable, whereas one fixing point of the nasal stent 3 in the first embodiment is not adjustable; third, the size adjustment method differs. The size of the nasal stent 3 in this embodiment is adjusted by adjusting the relative position of the self-fixing parts, whereas the first embodiment adjusts the size of the nasal stent 3 by adjusting the fixing position of the nasal stent 3 on the fixing clip 21.

[0116] As shown in Figure 27 , the fixing clip 21 has a substantially identical structure to the fixing clip of the first embodiment shown in Figure 8 , differing in that the fixing clip 21 of this embodiment does not include a clip opening 213 . Furthermore, the inner wall 2113 of this embodiment adopts the optimized structure shown in Figure 12 , with its width narrowing near the fixing hole 212 to enhance the clamping and securing effect of the fixing clip 21 on the intranasal stent 3 . In other similar embodiments, the sidewalls of the fixing hole 212 may not narrow near the fixing hole 212.

[0117] As shown in Figures 28, 29, and 30, the intranasal stent 3 includes a stent body 31 and a snap button 38. The snap button 38 includes a set of snap plugs 381 and a set of snap holes 382. The ends of the band-shaped stent body 31 are wedge-shaped in Figure 30. A plurality of snap holes 382 are arranged equidistantly through the stent body 31, along its midline near one end. The number of snap holes 382 can be increased or decreased based on actual needs, but is preferably seven. A plurality of snap plugs 381 are integrally provided along its midline near the other end, spaced evenly apart and spaced equal to the spacing between the snap holes 382. The snap plugs 381 protrude from the surface of the stent body 31. The number of snap plugs 381 can be increased or decreased based on actual needs, but is preferably four. The snap plugs 381 can be inserted and secured into the snap holes 382, ​​thereby closing the snap button 38. In order to reliably fix the intranasal stent 3, the length of the fixing hole 212 is the same as the width of the unfolded stent body 31, and the width of the fixing hole 212 is slightly larger than the thickness of the stent body 31 and less than twice the thickness of the stent body 31 to ensure that the fixing hole 212 can clamp, squeeze and fix the overlapping parts of the intranasal stent 3.

[0118] As shown in Figures 25, 26, 27, 28, 29, and 30, the nasal dilator 1 of this embodiment is assembled as follows: One end of the unfolded nasal stent 3 is inserted through the fixing hole 212. The nasal stent 3 is then curled into a ring structure, with the ends overlapping. After selecting the appropriate circumference of the ring structure, the snaps 38 are closed, that is, the four snap plugs 381 at corresponding positions are inserted and fixed into the four snap holes 382, ​​thereby securing the nasal stent 3 in the ring structure and locking its size using the snaps 38. At this point, the larger side surfaces of the wedge-shaped structures at both ends of the stent body 31 are close to the stent body 31, maintaining smooth outer and inner surfaces of the ring-shaped nasal stent 3, allowing for smooth subsequent adjustments. Next, the position of the annular nasal stent 3 in the fixing hole 212 is adjusted so that the fixing hole 212 surrounds the overlapping area of ​​the nasal stent 3. Because the width of the fixing hole 212 is less than the thickness of the overlapping area of ​​the nasal stent 3, the fixing hole 212 clamps the nasal stent 3, and the friction between the two secures the nasal stent 3 to the fixing clip 21. Finally, the user can adjust the size of the nasal stent 3 by selecting different combinations of snap plugs 381 and snap holes 382.

[0119] As a further optimization, in order to strengthen the fixing effect of the fixing clip 21 on the intranasal stent 3, a latch tooth can also be provided on the inner side of the annular intranasal stent 3.

[0120] As a further optimization, in order to strengthen the fixing effect of the fixing clip 21 on the intranasal stent 3, a serrated and wavy structure can also be provided on the upper side and / or lower side of the annular intranasal stent 3.

[0121] In addition, the various optimizations made in the first and second embodiments, as well as the wearing method of the first embodiment, are also applicable to this embodiment.

[0122] Compared to the first embodiment, the advantages of this embodiment are: first, the nose clip 2 does not need to be provided with a clip opening 213, so the nasal bracket 3 is less likely to fall off the nose clip 2; second, the connection between the nasal bracket 3 and the fixing clip 21 is simpler in structure, resulting in less resistance to breathing. However, the disadvantages of this embodiment are: first, the structure of the nasal bracket 3 is more complex, making it more difficult to manufacture; and second, the snap hole 382 reduces the strength and supporting force of the nasal bracket 3 at this location.

[0123] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A nasal dilator, characterized in that: The intranasal dilator comprises: a nose clip and two intranasal stents; The nose clip comprises: a nose clip body which is roughly U-shaped or C-shaped and two fixing clips which are symmetrically arranged and respectively connected in an integral manner to two branch ends of the nose clip body; The intranasal support is naturally unfolded into a flat belt-like structure, which is detachably connected and fixed to the fixing clip of the nose clip, and is curled to form a ring-shaped structure with adjustable circumference.

2. The nasal dilator according to claim 1, characterized in that: The axis of the annular structure is substantially parallel to the axis of the nasal passage in which it is located.

3. The intranasal dilator according to claim 1, characterized in that: The fixing clip of the nose clip comprises: an annular clip outer frame, a fixing hole penetrating from top to bottom in the clip outer frame, and a clip opening is arranged outside the fixing hole; The intranasal stent comprises a stent body and a stent tail; One end of the bracket body is integrally connected to the bracket tail; the bracket tail comprises: an annular outer frame, and a plug hole penetrating the outer frame is provided in the outer frame; the outer frame of the bracket tail surrounds and is fixed to the clip outer frame; A part of the bracket body is fixed in the fixing hole and cooperates with the fixing clip to adjust and fix the circumference of the annular structure.

4. The nasal dilator according to claim 1, characterized in that: The fixing clip of the nose clip comprises: an annular clip outer frame, a fixing hole penetrating up and down in the clip outer frame; the fixing hole is divided into an inner hole and an outer hole, and a partition is provided between the inner hole and the outer hole; The intranasal stent comprises a stent body and a stent tail; One end of the bracket body is integrally connected to the bracket tail; the bracket tail has a tail end at the end away from the bracket body, and the side perimeter of the tail end is greater than the side perimeter of the bracket tail; the bracket tail has a protruding tail tooth at the end close to the bracket body; the bracket tail is inserted into the outer hole, and the tail end and the tail tooth are exposed at both ends of the outer hole so that the intranasal bracket and the nose clip are fixed to each other; A part of the bracket body is fixed in the inner hole and cooperates with the fixing clip to adjust and fix the circumference of the annular structure.

5. The nasal dilator according to claim 3 or 4, characterized in that: The support body of the intranasal support also has a plurality of fixed-spaced teeth that cooperate with the fixed clips to adjust and fix the circumference of the annular structure.

6. The nasal dilator according to claim 3 or 4, characterized in that: The upper side and / or lower side of the support body of the intranasal support is provided with a serrated or wavy structure, which cooperates with the fixing clip to adjust and fix the circumference of the annular structure.

7. The intranasal dilator according to claim 1, characterized in that: The fixing clip of the nose clip comprises: an annular clip outer frame, and a fixing hole penetrating up and down is provided in the clip outer frame; The intranasal stent comprises a stent body; Self-fixing devices with adjustable fixing positions extend outward from both ends of the bracket body, and are curled, overlapped and fixed to form an annular structure.

8. The intranasal dilator according to any one of claims 1 to 4 and 7, characterized in that: The nose clip and the nasal support are made of different materials; the nose clip is made of a harder elastic material, and the nasal support is made of a softer elastic material.

9. The intranasal dilator according to any one of claims 1 to 4 and 7, characterized in that: Each of the intranasal stents is provided with at least one strip-shaped supporting spoke with both ends integrally connected to the inner wall of the intranasal stent.

10. The intranasal dilator according to any one of claims 1 to 4 and 7, characterized in that: A structure for accommodating compounds is arranged inside the annular structure of each intranasal stent, which can release compounds into the nasal passage or absorb and filter specific substances in the airflow of the nasal passage.

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