CN116077250A

CN116077250A - Nasal cavity support and manufacturing device thereof

Info

Publication number: CN116077250A
Application number: CN202211669821.5A
Authority: CN
Inventors: 李赋; 李赟; 庄谦丰; 蔡剑; 陈颖; 邱新宇; 茅波; 姜俏莉; 郑馨; 崔瑜华; 梁宝珠; 赵烨; 徐雪琴; 黄霏; 应水平; 揭青; 王燕; 刘芳; 蔡笑; 陈榕杭
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-25
Filing date: 2022-12-25
Publication date: 2023-05-09

Abstract

A nasal stent for a user to extend the nasal stent into the nose of the user via nostrils to open the gap between the septum and the opposite side of the septum in the nose, thereby expanding the ventilation passage of the nose to relieve nasal obstruction. The nasal cavity bracket comprises two dilators which can be simultaneously and respectively stretched into nostrils at two sides of a user, and the two dilators are fixedly connected into a whole; each expander extending into each nostril of a user comprises at least two layers of expansion brackets, each expansion bracket comprises a forefront bending formed by bending an elongated rod, two elongated rods on two sides forming the forefront bending respectively prop against the nasal septum and opposite sides of the nasal septum and prop up a gap between the two elongated rods, so that an effect of expanding a ventilation channel of the nose to relieve nasal obstruction is achieved. The invention also provides an automatic manufacturing device of the nasal cavity bracket. The nasal cavity support provided by the invention has a simpler appearance and a simpler and more direct function of dilating nasal cavity than the traditional cylindrical elastic alloy silk screen nasal cavity support.

Description

Nasal cavity support and manufacturing device thereof

Technical Field

The invention relates to a medical apparatus, in particular to a Nasal Stent (English name: nasal Stent) for a user to insert into the nose of the user through nostrils to dilate the Nasal airways and thereby relieve Nasal obstruction; the invention also relates to a device for manufacturing the nasal cavity bracket. It should be noted that the otorhinolaryngological technical terms referred to herein, such as the outer nostril (i.e., anterior nostril), nasal cavity, nasal septum (i.e., inner side of nasal cavity), nasal outer side wall, inferior turbinate, posterior nostril, general nasal meatus, etc., are based on two anatomical atlas of Liaoning scientific technology publishing company. One is nasal and sinus surgical dissection published in month 5 2003 of ISBN7-5381-3913-3, for example as described on page 27 of this specification as "lower, middle and upper turbinates protrude from the lateral nasal wall. The lower, middle and upper nasal passages are located between the turbinates. The nasal septum, the turbinates and the nasal passages are arranged between the nasal septum and the turbinates, the section title of page 25 is the anterior nares and the adjacent structure thereof, the base part of the outer nose of page 27 is the osseous opening called pear-shaped hole by taking the nasal bone and the frontal process of the maxilla as the boundary, the page 33 is the osseous channel which shows the cone shape as the nasal cavity when seen from front to back, the nasal cavity bottom is taken as the base, the nasal cavity top is pointed, and the front opening is narrower than the rear opening; then the transition part of the nasopharynx, the opening behind the nasal cavity, i.e. the posterior nostril, is divided in half by the same bone as the anterior nostril. The posterior nostril is separated by the plow and the anterior nostril is separated by the septal cartilage, "page 39" the nasal cavity is a quadrangular prism having a broad base wall, a narrow top wall, two perpendicular walls, one of which is the lateral wall and the other of which is the medial wall (septum) ". Another reference anatomic map based herein is ISBN978-7-5381-8032-9 (2014.12 reprint), "3D human anatomy", which is referred to herein in the section of the "construction of the nose" on pages 134 to 135 of the book, for example the "central protruding nose portion of the face" described on page 134 of the book is called the outer nose. The bones constituting the outer nose are cartilage, and the outer surface of the cartilage is covered with skin. The lower end of the nose is provided with a pair of nostrils. The nasal cavity is a large cavity in the head bone, and the front end of the nasal cavity is connected with the outside through the outer nostril. The nasal cavity is divided into two parts by the nasal septum, and the inner wall is attached with mucous membrane. The rear end of the nasal cavity is connected with the throat through the rear nostril. The bottom of the nasal cavity is the upper jaw, which is the top of the oral cavity.

Background

Rhinitis, whether allergic rhinitis or chronic simple rhinitis with unknown etiology but with high probability of autoimmune system dysfunction such as rheumatoid arthritis and vitiligo and chronic hypertrophic rhinitis caused by exacerbation of chronic simple rhinitis, is the biggest trouble for rhinitis patients, and is excessive nasal obstruction, especially during sleep. The nasal obstruction symptoms of rhinitis are not fatal, but can seriously deteriorate the life quality and work and study efficiency of people, because compared with the diseases of other organs and parts of the body, the nasal obstruction symptoms can be recuperated by bedridden rest, each person can not breathe at all times even when sleeping unconsciously, so that when the patient suffering from rhinitis is most tired and best thinks of resting, if the patient cannot fall asleep stably because of nasal obstruction, each calendar is free from being more difficult and painful. In fact, the inventor has experienced such a self-body-cutting pain experience and pain, and the pain and pain caused by chronic hypertrophic rhinitis in recent years by the inventor is a direct cause for promoting the birth of the invention. The prior medical method for relieving the nasal obstruction is almost two, namely medical medicine and surgical nasal drops, nasal spray and medical equipment, the medical medicine is a vasoconstrictor represented by pseudoephedrine, the side effect of the oral medicine is obvious, namely, the vasoconstrictor can raise the blood pressure of the body after contracting the blood vessels outside the nasal cavity of the body, and the inventor has the symptoms that the head and face vasoconstriction causes pain between two eyebrows after taking the cold medicine containing the pseudoephedrine; in addition, the currently administered vasoconstrictors cannot take effect immediately after oral administration, and the user must take the drug in advance and cannot begin taking the drug before sleeping in the evening. The medical components of the nasal drops and nasal sprays for surgery are mainly represented by xylometazoline and naphazoline which constrict blood vessels, and the nasal drops and nasal sprays have the advantages of being effective within minutes, but have the disadvantage of being incapable of being used for a long time every day, otherwise, causing the medical rhinitis, and causing the illness state of rhinitis patients to be frosted on snow. Taking xylometazoline as an example, the first notice in the description of xylometazoline hydrochloride nasal drops in the national standard H10940166 is that a user is required to use the nasal drops strictly according to recommended dosage, and the nasal drops cannot be used for more than 7 days continuously. However, everyone needs to sleep with high quality every night, even though xylometazoline can be used for 7 days continuously, how to do the work after that 7 days. The inventor tries to spray nose at night for several months continuously by using xylometazoline nasal spray to ensure sleep, and as a result, the nasal cavity is caused to increase white sticky purulent secretion and the nasal obstruction is used as the drug rhinitis representing symptoms, and abnormal hyperplasia of the nasal septum is found through CT (computed tomography) flat scan. The inventor is not dared to spray the mist xylometazoline into the nostrils by using a spray bottle, and the xylometazoline is used for dripping one to two drops on the lower turbinate on the outer side wall of the nasal cavity by using a dropper penetrating into the nasal cavity when the patient is in the supine position; because the long-term injection of xylometazoline into nostrils with a spray bottle inevitably sprays xylometazoline onto the nasal septum mucosa to cause vasoconstriction of the nasal septum mucosa, the nasal septum mucosa is easy to cause hypoxia of the nasal septum mucosa after single thin vasoconstriction compared with the subturbinate, and further stimulates compensatory expansion of the nasal mucosa blood vessels to cause hyperplasia of the nasal septum. In addition, even if the optimized administration route adopts a dropper to drop the xylometazoline on the downward turbinate, the long-term effectiveness cannot be ensured, and the inventor finds that the effect and the continuous effective time for relieving the nasal obstruction of the medicine are greatly reduced after the xylometazoline is dropped down the turbinate every night for two continuous years.

Compared with the oral and external vasoconstrictors, the Nasal mask and the Nasal Stent (named as Nasal Stent) for surgical use can be used for curing the Nasal obstruction problem of rhinitis patients every day. However, the ventilation nasal patch only can dilate the nasal vestibule from the outer surface of the outer nose, is ineffective for the total nasal meatus stenosis which is the most main ventilation passage of the nose and the nasal obstruction caused by the total nasal meatus stenosis caused by the turbinate hypertrophy or swelling in the nasal cavity, and compared with the nasal stent, the ventilation nasal patch is a technical solution which really has immediate curative effect on the nasal obstruction in the nasal cavity of a rhinitis patient. Representative products of Nasal stents are overseas Alaxohto (r) Nasal Stent and national Beijing university third hospital ear-nose-throat nickel-titanium alloy Nasal stents, both of which are round tubes of elastic alloy wire mesh plugged into the nose of a user through the outer Nasal orifice. Alaxohto, nasal Stent, on its corporate website (website is http: the video including nuclear magnetic resonance image is thoroughly introduced and can be watched and downloaded, and the nickel-titanium alloy netlike Nasal Stent provided by otorhinolaryngology department of the third hospital of Beijing university also has the special introduction of program video of 2021, 7 th year of life circle of CCTV-1 on CCTV program official network (the website is http:// tv, CCTV, com/2021/07/07/VIDE38H1nYZnvqCMarQJ6m8210707. Shtml). The two nasal stents provided at home and abroad are basically the same in shape and principle, namely, the cylindrical nasal stent formed by braiding elastic alloy wires is pinched and compressed in an elongated hollow hose, then the hollow hose is extended into the nose through one side of the outer nostril, the front end of the hollow hose extending into the nose is required to reach the lower nasal concha through the total nasal passage, then the hollow hose is extracted from one side of the outer nostril, so that the cylindrical nasal stent originally compressed in the nose is released, then the elastic alloy wire mesh forming the cylindrical nasal stent is expanded in the nose under the driving of elasticity to enlarge the gap between the nasal septum and the outer side wall of the nasal septum and the lower nasal concha, and the total nasal passage serving as a main nasal ventilation passage of a user is expanded to relieve nasal obstruction in the nose, and in fact, the nasal obstruction of most rhinitis patients is caused by narrowing the gap between the nose and the outer side wall of the opposite side of the nose, especially the nasal septum on the opposite side of the nasal septum. The two nasal cavity supports have the function principle that the inflation force of the cylindrical elastic alloy wire net when the nasal septum is restored is utilized to enlarge the ventilation channel between the nasal cavity outer side wall and the turbinate at the opposite side of the nasal septum. The invention is an improvement on the two nasal stents at home and abroad. The inventor finds that the defects of the two nasal stents mainly have five points. The first disadvantage is that the step of inserting the two existing nasal stents into the nose of the user and expanding the same therein is troublesome because after inserting the hollow hose, into which the compressed nasal stent is inserted, into the nasal cavity of the nose through the outer nostril, the user wants to withdraw the hollow hose while the nasal stent compressed in the central hose is not withdrawn out of the outer nostril along with the hollow hose, not only both hands are required to be engaged, but also the depth of the nasal stent inserted into the nose is prevented from being unnecessarily changed by the action error of the gesture; the second disadvantage is that the existing nasal stent is likely to encounter trouble that the elastic alloy wire tears the nasal mucosa to cause bleeding of the nasal mucosa when the user takes out the nasal stent after using the nasal stent, mainly because the elastic alloy wire mesh forming the existing nasal stent has a large total contact area and close fitting with the nasal cavity, and the nasal passages are expanded by the nasal stent, so that the respiratory airflow is smooth, the nasal mucus or mucus secreted by the nasal mucosa is easy to volatilize and dry under the condition of smooth airflow, and the operation of extracting the nasal stent from the nasal cavity is required to be careful due to the close fitting of the large area and the dry nasal mucus as an adhesive; a third disadvantage is that the rear ends of the two existing nasal stents are end closure structures of the elastic alloy wire mesh, referring to fig. 1 of the accompanying drawings and the introduction video and program video of the two nasal stents, the end closure structures are not hollow per se and have a plug 5 in the middle thereof for facilitating the pulling of the entire nasal stent out of the nose by the fingers of a user, so that the elastic alloy wire mesh and the plug 5 of the rear ends of the two nasal stents tend to affect the ventilation effect of the nose to a certain extent and also block the normal injection of nasal sprays such as synthetic glucocorticoids into the nostrils; fourthly, because the mesh holes of the elastic alloy wire mesh are fine and the welding spots are numerous, it is not easy to achieve that the whole elastic alloy wire mesh is completely free from sharp burrs, and it is difficult to ensure that the welding spots are not broken after the traditional nasal stent is used for a long time so as to generate burrs which scratch nasal mucosa, and the nasal mucosa is not protected like exposed skin at other parts of the body by horny layers, so that the nasal mucosa is very easy to be scratched when contacting sharp objects to hurt and bleed; fifth, the material and production cost of the current cylindrical elastic alloy wire nasal stent are high, for example, the current Alaxoito nasal stent purchased from India in Baidu bar offers up to 5 thousand money. The nasal cavity bracket provided by the invention can easily overcome the defects of the five existing nasal cavity brackets, and a user only needs to insert the nasal cavity bracket provided by the invention into the nose of the user at one time if the user wants to relieve nasal obstruction, so that the complicated steps of inserting and extracting the hose with the hose are avoided; the user can easily avoid the trouble that the nasal stent breaks the nasal mucosa when taking out the nasal stent provided by the invention; compared with the existing nasal stent, the simple structure and the simple shape of the nasal stent provided by the invention do not influence the ventilation function of the nose, and the contact area between the simple structure and the simple shape and the inner and outer side walls of the nasal cavity is very small compared with the contact area between the existing nasal stent and the inner wall of the nasal cavity, which is made of an elastic alloy wire mesh round tube, so that the smooth and burr-free surface of the contact part of the nasal stent and the nasal mucosa is easily realized during production and manufacture, and the possibility of scratching the nasal mucosa due to the long-term rupture of the material of the nasal stent is also reduced; finally, the main body of the nasal stent provided by the invention is made of common materials, has a simple structure and extremely low production cost, for example, the material cost of a nasal stent which is manually manufactured by the inventor and used by the inventor is less than five pieces of RMB.

Disclosure of Invention

In particular, the invention provides a nasal cavity bracket, which can be used for a user to stretch the nasal cavity bracket into the nose of the user through nostrils as in the prior two nasal cavity brackets so as to stretch the nasal septum inside the nose of the user and the gap between the opposite sides of the nasal septum, thereby realizing the effect of expanding the ventilation channel of the nose to relieve nasal obstruction. However, the invention is different from the existing products in that the nasal cavity bracket comprises two dilators which can be respectively stretched into nostrils at two sides of a user at the same time, and the two dilators are fixedly connected into a whole; each expander extending into one nostril of a user comprises at least two layers of expansion brackets for simultaneously expanding gaps between the nasal septum and opposite sides of the nasal septum, each expansion bracket comprises an anterior protuberance bending structure which is positioned at the forefront end of the expansion bracket relative to the rear end of the nasal bracket and is formed by bending an elongated rod, and each expansion bracket comprises two elongated rods which form the anterior protuberance bending, and the two elongated rods respectively prop against the nasal septum and the opposite sides of the nasal septum and prop open the gaps between the nasal septum and the opposite sides of the nasal septum, so that the ventilation channel of the nose is expanded to relieve nasal obstruction.

Preferably, the elongate rods of all the expansion brackets included in the nasal stent may comprise any angle and any shape of bending deformation that is advantageous for the nasal stent to alleviate the symptoms of nasal obstruction of the user.

Preferably, the nasal support comprises means to define the depth to which the dilator extends into the nose via the nostrils.

Preferably, the nasal stent is formed by bending a continuous and smooth-surfaced elongate rod, i.e. the two dilators of the nasal stent and all the dilators contained in each dilator, the connecting parts of the two dilators and the means for limiting the depth of the dilators extending into the nose of the user through the nostrils are all formed by bending a continuous and smooth-surfaced elongate rod; all adjacent two layers of expansion brackets included in each expander are connected into a whole through connection bending between two slender rods belonging to the two layers of expansion brackets.

Preferably, each expander comprises two layers of expansion brackets, wherein a lower expansion bracket close to the upper jaw at the bottom of the nasal cavity of a user and an upper expansion bracket above the lower expansion bracket are connected into a whole through the connecting bending at the rear part of the front protrusion bending; in order to avoid the connection bending from stretching across the nasal airway, the upper and lower sides of the connecting bending are positioned on the same side, namely the upper and lower side slender rods of the connecting bending which are respectively an upper and lower expansion bracket are respectively clung to the nasal septum or the opposite sides of the nasal septum after the nasal stent stretches into the nose of a user through nostrils at both sides.

Preferably, the means for limiting the depth of penetration of the dilator into the user's nose via the nostrils is a bent structure of the elongate stem at the rear end of the dilating stent which is offset from the direction of the user's nostrils; the nasal support may also include anti-slip means for preventing the nasal support from slipping out of the nose after the nasal support is inserted into the nose via the nostrils when the user is to clear the nasal airways to relieve nasal congestion.

Preferably, in the event that the nasal support is functional with the means for limiting the depth of penetration of the dilator into the user's nose via the nostrils, each dilator of the nasal support includes a said connection bend that does not lie within the outer nostril when the dilator is fully extended into the nose, thus facilitating finger manipulation of the connection bend by the user. .

Preferably, the connecting portions of the two dilators located at the rear end of the nasal stent will have elasticity that varies the angle between the two dilators.

Preferably, the upper and lower elongate rods forming the connecting and bending parts of the upper and lower dilating brackets are respectively abutted against opposite sides of the nasal septum after the nasal stent is stretched into the nose of a user through nostrils at both sides, the nasal stent comprises a device for limiting the depth of the dilator which is stretched into the nose of the user through nostrils, the device for limiting the depth of the dilator which is stretched into the nose of the user through nostrils is a tail hook formed by bending structures, which are positioned at each side, of the rear end of the dilating bracket, of the elongate rods deviating from the nostril direction of the user, and the tail ends of the elongate rods at the tail ends are bent into circular ring structures which are used for winding the tail ends of the elongate rods without exposure; the nasal support is characterized in that when the tail hooking effect used for limiting the depth of the dilator extending into the nose of a user through nostrils is used for hooking the nose of the user, each side of the dilator is prevented from extending into the nose further, the connecting bending included in each dilator of the nasal support is not located in the outer nostrils; the connecting parts of the dilators on two sides of the nasal stent are formed by bending between the lower dilating stents of the dilators on two sides, and the connecting parts of the dilators on two sides of the nasal stent form a handle which can be used for a user to hold the nasal stent by hand and is positioned at the rear end of the nasal stent.

The invention also provides a nasal stent manufacturing device, which can automatically perform bending operation on a continuous slender rod for a plurality of times according to the related parameters input into the nasal stent manufacturing device and finally manufacture the nasal stent which is preferably formed by bending the continuous slender rod with smooth surface.

In summary, the nasal stent provided by the invention perfectly solves the defects of the two existing nasal stents, namely, firstly, the nasal stent is convenient to use, and only the nasal stent provided by the invention is required to be directly inserted into nostrils at two sides at one time; secondly, the contact area between the part of the nose support extending into the nose and the inner wall of the nose is much smaller than that between the elastic alloy wire mesh which is compact in the prior two nasal supports and the inner wall of the nose because the part of the nose support extending into the nose only comprises a small number of slender rods, so that the part of the nose support extending into the nose and the inner wall of the nose are easily and slowly separated from contact when a user wants to extract the nose support from the nostrils, and the nasal mucosa is prevented from being torn in the nasal support extraction process because of dry and adhesive nasal discharge; thirdly, the cross section of the nasal stent which is transverse to the nasal ventilation passage is very small, and in the preferred embodiment, even only two very short segments which are spaced apart form the elongated rod which is bent forward transversely to each nostril, so that the advantages are obvious compared with the end-closed alloy wire mesh of the two prior nasal stents; fourthly, the extremely simple structure not only reduces the possibility that the nasal mucosa is scratched due to burrs formed by material fracture or rupture after the use time is long, but also is very easy to avoid the burrs which scratch the nasal mucosa on the surface of a finished product of the nasal stent in the production process. The fifth is that the nasal cavity bracket provided by the invention is very simple, only one slender rod is required to be bent to process the most critical part which stretches into the nose to prop open the gap between the nasal septum and the opposite side of the nasal septum, so that the nasal obstruction can be effectively relieved, and the nasal cavity bracket is quite cheap and civilian in comparison with the high selling price of the existing two nasal cavity brackets when the inventor only spends 5 pieces of RMB mail network purchase to buy 10 stainless spring steel wires with the length of 1 meter, and only one of the stainless steel wires is used to manufacture the nasal cavity bracket for daily night and afternoon.

Drawings

Fig. 1 is a schematic view of a currently open and commercially available elastic alloy wire mesh cylindrical nasal stent, and an elastic alloy wire mesh cylinder constituting the main body of the prior two nasal stents is denoted by reference numeral 4 in fig. 1. Note that the posterior end of the existing nasal stent, i.e., the right end of the elastic alloy wire mesh cylinder 4 illustrated in fig. 1, tends to have a larger volume than the rest of the elastic alloy wire mesh cylinder, primarily to accommodate the larger volume of the interior of the nasal vestibule in the outer nostril relative to the total nasal passages in the nasal cavity. Since there are many nasal hairs with physiological functions in the nasal vestibule, the existing nasal support will force the nasal hairs to be lodged against the inner wall of the nasal vestibule after being inserted into the nose of a user and then expanded, thereby affecting the nasal hairs to exert normal physiological functions such as dust blocking, while the dilator provided by the invention, which extends into the nose of the user, is reversely observed, and the invention is also a sixth advantage compared with the existing two nasal supports because the nasal hair in the nasal vestibule is not stressed in a large area by bending only a plurality of slender rods in a region to press the inner wall of the nose in a large area, as described in the previous summary of the invention. Note that the left end of the existing nasal stent in the form of an elongated hollow cylinder illustrated in fig. 1 is open and the right end is closed, and at the rear end of the existing two nasal stents there is a plug 5 for bringing together and compressing the elastic alloy wire mesh, and the plug 5 is used for the user to grasp when the user wants to take out the nasal stent from the nostril, and then the existing nasal stent formed by the whole elastic alloy wire mesh cylinder 4 is extracted from the nose.

Fig. 2 is a schematic view of a first embodiment of a nasal stent according to the present invention. The first embodiment of the nasal stent provided by the invention is shown in the figure, and a brief and direct technical scheme of the invention is taken as a result, when the nasal stent 1 is to be used for dredging the ventilation channel of the nose to relieve nasal obstruction, as shown in the figure and referring to fig. 4, a user only needs to hold the handles 102 of the nasal stent 1 to enable two dilators 101 of the nasal stent 1 to simultaneously extend into the nose through nostrils on two sides of the nose 2 of the user, and the user can feel contact between the dilators 101 on two sides and the nasal septum and the lower nasal concha or the outer side wall of the nasal cavity on the opposite side of the nasal septum by himself/herself in the actual use process, so that the nasal stent and the dilators contained in the nasal stent can be adjusted to extend into the advancing angle in the middle of the nose and finally realize the purposes of expanding and expanding the gap between the nose and the opposite side of the nasal septum along with the advancement of the dilators in the nasal septum, thereby relieving nasal obstruction. In clinical practice, many rhinitis patients still feel nasal obstruction and air blockage after undergoing a lower turbinate external movement operation, and according to the inventor, the inventor can estimate that thick inflammatory purulent secretion secreted by inflamed nasal mucosa covers the surface of the nasal mucosa and influences the pressure perception of ventilation air flow in the nasal cavity caused by nasal mucosa epithelial cells. Looking of course at the sharp rigid but blunt-sliding anterior-lobe bend 107 of the anterior-most end of all the layers of the stent 103 of the two-sided dilator 101 of the present invention, other rhinitis patients can also get psychological cues and psychological comfort of the ventilation channel of their own nose being dredged after inserting the present invention into their nostrils, which can actually be seen as a seventh advantage of the present invention over the existing two flexible, elastic alloy wire mesh cylindrical nasal stents, after all, the force of the elastic alloy wire mesh to prop open the nasal septum on the opposite side of the nasal septum must be less than the sharp rigid anterior-lobe bend 107 formed by the elongate rod raw material used in the present invention. In addition, referring to fig. 3 and 4, there is shown a very simple and efficient implementation of the anti-drop device of the present invention for preventing the nasal cavity support 1 from slipping out of the nose by backing out of the nostrils, that is, a ring 106 of an elastic strap 109 penetrating through the first embodiment for hiding the sharp ends of the stainless spring wire as the specific raw material of the elongated rod will bind the first embodiment, which has been inserted into the nose of the user, to the face of the user around the back of the user by the ears, so that the first embodiment is prevented from slipping out of the nose by itself back out of the nostrils.

Fig. 3 is a schematic view of the first embodiment of the nasal stent according to the present invention, and fig. 3 shows the shape and structure of the first embodiment from four different viewing angles by four views divided by horizontal and vertical dotted lines. The prototype of this example is in fact that the inventors continuously bent the stainless spring wire with a wire purchased 0.7 mm diameter stainless spring wire with a jaw of a towel-holding vice for 2022, 7 months 1 year, and made purely by hand and used for 2022, 12 months, during which the inventors had an immediate effect on solving the nasal obstruction caused by double-sided turbinate hypertrophy caused by chronic hypertrophic rhinitis themselves, had an indispensable effect on ensuring the inventors' own night sleep, and had a continuous two-year night use of xylometazoline nasal drops before the inventors had a poor effect on solving the nasal obstruction caused by the drug resistance of the inventors to xylometazoline produced by 2022, 6 months. When the first embodiment is used, referring to the present figure and fig. 4, the inventor can obviously perceive the curative effect of dredging the ventilation channel of the nasal cavity immediately after the front protrusion bending 107 of the front end of the two-sided dilator 101 of the first embodiment pierces the most severe position of the nasal obstruction in the nasal cavity and stays there, so to speak, the moment that the nose with the nasal obstruction can freely and smoothly inhale cool fresh air is the most refreshing enjoyment of rhinitis patients-! The drawing separates the views of the first embodiment from the four different view angles by the horizontal and vertical broken lines so as to facilitate the visual recognition of the real structure of the first embodiment, and the reference numerals of the important parts of the nasal cavity bracket for extremely simple and efficient relief of nasal obstruction provided by the invention are decorated by grey ground patterns in all four views. It can be seen from the four views of fig. 3 that the first embodiment is an M-shaped nasal stent made of a whole stainless steel wire 104 through continuous multi-bending, and it can be seen in conjunction with fig. 2 and fig. 4 that the inverted V-shaped dilators 101 on both sides of the M-shaped are respectively inserted into the nostrils of the user to expand the gap between the nasal septum and the opposite sides of the nasal septum so as to relieve nasal obstruction, while the V-shaped bending in the middle of the M-shaped extends to form a handle 102 which is convenient for the user to hold the rear end of the whole nasal stent, and because the whole first embodiment is formed by the stainless steel wire 104 with great elasticity compared with the common steel wire, the incomplete circular ring structure at the rearmost end of the handle 102 can also provide elasticity for maintaining the included angle between the two side dilators, so that after the nasal stent 1 is inserted into the nostrils of the user, the elasticity generated by the handle 102 can drive the two side dilators 101 to clamp the nasal septum 201 between the two nasal dilators or respectively clamp the outer side walls 204 of the two nasal dilators on the opposite sides of the nasal septum or press the nasal prongs 203 on the opposite sides of the two nasal dilators respectively, so as to relieve nasal obstruction conditions. Of course, the rearmost end of the handle 102, as shown by the rounded arrowed marking in the lower right hand corner of the top left view, may also be configured as a full or even more round ring like pin and spring as shown in the rounded marking frame to enhance the flexibility between the two side dilators 101. It is noted that any other mechanism that provides flexibility to the handle 102 is fully possible in the present embodiment, and that it is within the scope of the present invention to form the nasal stent from an elongate rod material such as the stainless spring wire of the first embodiment. As shown in this figure and referring to fig. 2 and 4, in the first embodiment, the inverted V-shaped stent is formed of a minimum of two inverted V-shaped stent frames 103, and as previously described, the two inverted V-shaped stent frames 103 are more blunt than two handles with smooth surfaces and stacked up and down at intervals, each stent 101 comprises two stent frames 103 which are more effective than two handles penetrating to cause a long sword at the narrowest portion between the nasal septum of the nasal plug of the user and the inferior turbinate or the lateral side wall of the nasal cavity on the opposite side of the nasal septum, and the long sword-shaped stent frames 103 penetrating to cause the narrowest portion of the nasal plug of the user are more effective to expand the narrowest portion by the rigidity and elasticity of the foremost fold 107 of the inverted V-shaped and the rigidity and elasticity of the stainless spring wires 104 on the two sides of the inverted V-shaped stent frames to relieve the nasal plug. As shown in this figure and referring to fig. 4, although all of the dilators 101 and all of the stent 103 comprising the dilators are straight in the first embodiment, all of the elongate rods, represented by the stainless spring wires 104, comprising the stent 103 as described above, are capable of producing any angular and any shape bending deformation that is advantageous for safely and efficiently alleviating the nasal obstruction symptoms of a user within the scope of the underlying technical solution of the present invention, and the subsequent second, third and fourth embodiments are merely illustrative of a few possible variations of the flexibility of the stent. The connection bends 108 between all the upper and lower stent extensions 103 of the two side dilators 101 of the first embodiment are located at the two outermost sides of the two dilators 101 which are close to the opposite sides of the nasal septum, but for the basic technical solution of the present invention, the connection bends 108 may be located at the inner sides of the nasal septum when the dilators 101 are in use or even the two stainless spring wires 104 which constitute the connection bends 108 may be close to the nasal septum 201 and the opposite sides of the nasal septum 202 when in use, except that the connection bends 108 will traverse the ventilation passage of the nose when the two stainless spring wires 104 of the connection bends 108 are close to the opposite sides of the nasal septum 201 and the opposite sides of the nasal septum 202. The stent 101 of each side of the first embodiment shown in this figure adopts the form of a double-layered stent 103, that is, each side of the stent includes only two-layered stent 103, and referring to fig. 4, the double-layered stent includes a lower stent 1031 which is inserted into the nose to be close to the palate of the bottom wall of the nasal cavity and an upper stent 1032 which is disposed above the lower stent 1031. As shown in the figure and referring to fig. 2 and 4, in the first embodiment, two stainless spring wires 104 inside the lower expansion bracket 1031 on both sides extend to the rear end of the whole nasal cavity bracket 1 and are connected by a bending structure so as to firmly connect the two-side expanders 101 into a whole, when the two-side expanders 101 simultaneously extend into the nostrils on both sides of the user, the expanders on each side of the two-side expanders cannot easily rotate radially in the nasal cavity, so that the stainless spring wires 104 on both sides of all the expansion brackets 103 contained in the expanders 101 always respectively prop against the nasal septum and the opposite sides of the nasal septum respectively, and the gap between the two stainless spring wires can be continuously supported to treat nasal obstruction symptoms of the user; the two stainless spring wires which are positioned outside the lower expansion bracket 1031 and the upper expansion bracket 1032 and are tightly attached to opposite sides of the nasal septum are connected together through the connecting bend 108 at the rear end of the expander, the connecting bend 108 also maintains the relative position between the upper expansion bracket and the lower expansion bracket by utilizing the rigidity of the stainless spring wire 104, the upper and lower double-layer expansion brackets which are tightly connected into a whole through the connecting bend 108 form a stable structure which is rectangular in cross section and is difficult to rotate between opposite sides of the nasal septum and the nasal septum, when the nasal bracket is stretched into the nose of a user through the nostrils at both sides, the upper and lower double-side expansion brackets are tightly attached to the lower nasal nail or the outer side wall of the nasal cavity at the opposite sides of the nasal septum from both sides, and the stable structure which is rectangular in cross section and is difficult to rotate can ensure that the nasal septum can continuously and efficiently expand the gap between the nasal septum and the opposite sides of the nasal septum to solve the nasal obstruction symptom of the user. The first embodiment as shown in this figure also neatly builds up means for limiting the depth of the dilator 101 extending into the user's nose through the nostrils and anti-slip means which can be used to prevent the nasal stent from slipping out of the nostrils, using the two ends of an integral stainless spring wire which makes up the entire nasal stent. The device for limiting the depth of the dilator 101 extending into the nose of the user through the nostril is the tail hook 105 at the rear end of the two side dilators in the first embodiment, the tail hook 105 has a function of limiting bending in use, referring to fig. 1 and 4 and combining the four views of the present invention, it can be seen that the tail hook is the bending of the stainless spring wire at the rear end of each dilating rack 103 away from the nostril, when the tail hook 105 is hooked on the nose tip or the soft tissue edge of the nose of the user, the dilator 101 can not extend deeper into the nasal cavity of the user, and although the dilator entering the nasal cavity rack of the nose of the user is the whole rounded shape and structure of the slender rod represented by the smooth stainless spring wire in the first embodiment, the inner wall of the nasal cavity is very safe, the inner wall of the nasal cavity is not easy to be scratched, and the nasal cavity is still more safe after the device for limiting operation such as the tail hook 105 is implemented. As shown in the figure and referring to fig. 2, in the first embodiment, the sharp ends of the two stainless spring wires at the ends of the two tail hooks 105 are perfectly hidden and sealed by the two circular rings 106, so that the nasal cavity bracket made of a whole smooth stainless spring wire through a plurality of folds forms a whole smooth shape without any sharp protrusions on the outer surface, and the safety of the first embodiment in practical use is further improved. Furthermore, as shown in fig. 2, the elastic band 109 can be used to fix the nasal stent inserted into the nostril of the user and resting in the nose on the face of the user via the two circular rings 106, so that the anti-falling device for preventing the nasal stent 1 from falling back and slipping out of the nostril can be constructed in an efficient and convenient manner. Note that as shown in this figure and fig. 4, the connection bending 108 of the first embodiment is located near the bending portion of the tail hook 105, that is, when the tail hook 105 acts to hook the nose tip or the soft tissue edge of the nose of the user, the connection bending 108 is located outside the outer nostril or the fingers of the user can stretch into the touch outer nostril vestibule, in any case, the stainless spring wires on two sides of the connection bending 108 are not too short to enable the connection bending to be located in the nasal cavity which cannot be touched by the fingers of the user, that is, anatomical nasal threshold, so that the user can conveniently use the thumb and index finger on two sides of the nasal cavity to simultaneously press the two connection bending 108 on two sides and pinch the two connection bending 108 in the middle of the two connection bending 108, so that the included angle between the stainless spring wires on two sides of the two dilating brackets 101 can be reduced simultaneously, and the stainless spring wires on two sides of the dilating brackets are separated from the outer side of the nasal cavity before the connecting brackets are pulled out, namely, the two stainless spring wires on two sides of the connecting brackets are not easily pulled out of the nasal cavity, and the nasal cavity can be slowly pulled out of the nasal cavity by the two stainless springs on two sides of the connecting brackets, and the nasal cavity can be prevented from being slowly pulled out of the nasal cavity, and the nasal cavity is easily pulled out of the nasal cavity by the side of the connecting wire is easily when the nasal cavity is not easily pulled out of the nasal cavity, and the nasal cavity is easily pulled out of the nasal cavity easily, and the nasal cavity is easily and the dry by the nasal cavity is easily pulled by the nose contact with the nasal cavity.

Fig. 4 is a schematic view of the nasal cavity ventilation principle of the second embodiment of the nasal cavity support provided by the invention. It is first noted that the second embodiment shown in fig. 4 differs from the first embodiment shown in fig. 2 and 3 only in that the connecting folds 108 of the second embodiment have a fold feature relative to the first embodiment that is biased under the user's outer nostrils, as shown in fig. 4 and in comparison to fig. 3, the design of the connecting folds 108 in the second embodiment being biased downward is intended to better avoid slightly the inner nasal vestibule wall in the outer nostrils when the dilator 101 is fully extended into the nose after each side tail hook 105 is activated, the ideal goal being that the connecting folds 108 biased downward will be against the inner nasal vestibule wall, rather than possibly lifting the soft tissue of the nose edge between the nose tip and the two side wings as in the first embodiment. This technical feature is demonstrated to demonstrate the possibility and paradigm that the elongate rod material of all stent struts comprising the stent according to the basic solution of the present invention may be used to facilitate safe and efficient relief of any angular and shape flexibility of the nasal obstruction of a user. Note that the technical and anatomical features of the inclusion relationship are shown in brackets in this and the previous fig. 3, namely that the stent 103 comprises a lower stent 1031 and an upper stent 1032 in the first and second embodiments, and that the concept of the opposite side 202 of the nasal septum described in the present invention includes the anatomical concept of the lateral nasal wall 204 and the upper, middle and lower turbinates of a human being represented by the inferior turbinate 203. It should be noted that the nasal ventilation principle of the second embodiment for alleviating the nasal obstruction symptoms of the user shown in the upper and lower two views separated by a horizontal dashed line in the present embodiment is actually applicable to all possible technical solutions of the present invention, that is, the nasal ventilation principle shown in the present embodiment is the nasal ventilation principle of all possible technical solutions of the present invention. While the inventor's pictorial foundation is not well bound and so fig. 4 merely illustrates the nasal ventilation principle in a simple shape object rather than in a realistic human anatomy three-dimensional figure, the principles of the present solution can still be understood from fig. 4 in conjunction with a specialized anatomical course and map with the help of reference numerals and their leads. As shown in fig. 4 and referring to fig. 2 and 3, the nasal stent according to the present invention is actually used by inserting two dilators 101 on both sides into nostrils of a human being separated by a central nasal septum at the same time and expanding the ventilation passage of the human nose by using an elongated rod stent having at least one rectangular cross section, that is, a ventilation passage surrounded by the palate 3 as the bottom wall of the nasal cavity, the top wall of the human nasal cavity which is not shown in fig. 4, and the opposite sides 202 of the nasal septum 201 and the nasal septum. The simple and efficient effect of the present invention can be seen very easily in conjunction with fig. 4, because as mentioned above, most nasal obstruction symptoms of rhinitis patients are caused by the fact that the hypertrophied inferior turbinate swells up to the gap between the nasal septum 201 and the opposite side 202 of the nasal septum and encroaches on the total nasal passage gap between the two as the main nasal passage channel, as shown in the figure, the present invention can imagine that the sharp anterior protuberance 107 with both rigidity and elasticity of the slender rod material first pierces the narrow total nasal passage gap and as the dilator further stretches into the nasal cavity, the anterior protuberance 107 of each dilating bracket 103 and the stainless spring wires on both sides composing the anterior protuberance 107 can expand the narrow total nasal passage gap like a bamboo so as to relieve nasal obstruction immediately, and then the rectangular cross-section structure of the dilator 101 can be stably held still by the nasal septum 203 or the nasal outer side 204 and maintain good ventilation effect when staying in the nasal cavity of the user. In fact, even sometimes the feeling of being self-made when the inventor actually uses the first embodiment, the effect of the foreskin bend 107 of the front end of the dilator 101, which continuously extends into the nose through the nostril as the first embodiment, as the foreskin of the dilating ventilation channel, forcefully protruding into the gap between the nasal turbinates and septum, which have been closed together, to instantaneously relieve nasal congestion symptoms ≡! The lower right corner of the lower view of fig. 4 also shows a schematic diagram of the rectangle of the first and second embodiments having a rectangular cross section that is not easily rotated and stably maintains the dilating ventilation effect after being sandwiched by the septum 201 and the opposite side 202 of the septum. It should be noted that, compared with the technical characteristics of the prior elastic alloy wire mesh circular-through nasal stent that expands the total nasal meatus by the elastic force of the expanded alloy wire mesh, the technical proposal of the invention can be said to expand the total nasal meatus mainly by the rigidity of the slender rod material constituting the dilator main body of the nasal stent, the rigidity mainly comes from the requirement of maintaining an at least double-layer dilator with stable appearance and the rigidity needed for bearing the bending 107 of the front protrusion of the whole nasal stent when the nasal stent is inserted into the narrowest nasal cavity causing nasal obstruction of a user, and the elastic force is better than the rigid expansion force generated by the rigid structure. Of course, the elastic force of the slender rod material represented by the stainless spring steel wires adopted in the first and second embodiments also contributes to the expansion of the total nasal meatus in the technical solution of the present invention, for example, as shown in fig. 4, the effect of the elastic force to expand the total nasal meatus in the first and second embodiments is represented by the stainless spring steel wires 104 on two sides of the anterior protuberance bending 107 forming each layer of expansion bracket 103, and the elastic force generated by the extrusion of the stainless spring steel wires on two sides of the anterior protuberance bending 107 from two sides by the opposite sides of the nasal septum and the nasal septum drives the stainless spring steel wires on two sides of each layer of expansion bracket 103 to cling to the opposite sides of the nasal septum and expand the gap between the two sides. Incidentally, as shown in fig. 2 to 4, the handles of the first and second embodiments each have a downward bending feature, which is an optimization measure adopted by the inventor in order to avoid the handle 102 protruding from the head and face from interfering with putting on and taking off clothes such as T-shirts and the handle 102 interfering with the inner wall of the cup when drinking water when the first embodiment is made by hand in practice, because the downward bending handle 102 protrudes to a shorter height from the head and face. In addition, the inventor uses flexible substances such as towels, soft cloths and the like to pad the jaw of the vice to clamp the stainless spring steel wire and bend the stainless spring steel wire to manufacture the object of the first embodiment, so as to avoid that the hard jaw of the vice damages the smooth surface of the stainless spring steel wire and forms burrs which can scratch or puncture the inner wall of the nasal cavity.

Fig. 5 is four schematic views of the appearance and structure of a third embodiment of a nasal stent provided by the present invention. The four views of the third embodiment, which are divided by horizontal and vertical dashed lines in the present figure, show the technical features of the third embodiment from different angles, and also show some possible implementation forms of the basic technical solution of the present invention. In the third embodiment, as shown in fig. 5, the two dilators 101 inserted into the nostrils at both sides are not uniform in width and length. The embodiment of the two-side asymmetric dilator is a preferred embodiment in practice according to the different conditions inside nostrils of two sides of a user, after all, most people naturally have more or less nasal septum deflection to cause the asymmetry of two nasal cavities, and if the nasal stent of the invention with the optimal shape is custom-made for a certain rhinitis patient, geometrical parameters such as the width, the length and the like of each side dilator can be carefully planned according to medical image data inside the nasal cavity of the rhinitis patient. A further reason for making the two-sided non-symmetrical dilator is that the inventor sometimes also has circumstances such as bleeding from the nasal cavity in the nostril on one side, which is not suitable for inserting a dilator into the nasal cavity in the nostril on the side where the nasal mucosa has been bled, which would otherwise affect healing of the bleeding site in the nasal cavity, and therefore the inventor self-manufactures a nasal stent similar to the asymmetric dilator of the third embodiment, and can refer to fig. 4, the relatively short and thick dilator on the left side of the four views of the present figure can function in practice by being inserted only into the nasal vestibule of the outer nostril without extending into the nasal cavity beyond the nasal threshold, the relatively thick width being to better fit the inner wall of the nasal vestibule which is wider than the inter-nasal space so as to stabilize the dilator on the other side so that the dilator on the other side cannot easily undergo unnecessary radial rotation in the nasal cavity. The feature that the length of the dilator of the third embodiment on the other side is longer and the stainless spring wire on the side of the connecting bend 108 is relatively short and not nearly flush with the tail hook 105 of the rear end as in the previous first and second embodiments, as shown in all four views of this figure, was adopted in the early research and development of the inventor, and was aimed at minimizing unnecessary compression of other areas of the inner wall of the nasal cavity to protect the nasal mucosa as much as possible, in order to allow the dilator fully inserted into the nasal cavity to effectively dilate the nasal obstruction at the rear end of the lower nasal nail in the interior of the nasal cavity. Furthermore, as can be seen from comparing the third embodiment with the first and second embodiments described above, although the double-layered stent 103 is also used as the stent 103 of the third embodiment, the connecting bend of the stent 103 of the stent 101 of the third embodiment is located near the inner side of the nasal septum in use rather than the outer side as in the first and second embodiments, which in fact also shows a possible variant of the embodiment of the present invention. Through the demonstration of fig. 5 and the third embodiment, the technical scheme of the invention can be completely implemented as the nasal stent with the two asymmetric dilators, and the appearance structure of each dilator can be independently optimized and customized according to the corresponding nasal conditions.

Fig. 6 is two schematic views of the appearance and structure of a fourth embodiment of a nasal stent according to the present invention, in which the upper and lower views are divided by a horizontal dashed line to show the fourth embodiment from two different perspectives, and the upper right part of the upper view is also divided by a double dashed line to show a cross-sectional view of the dilator of the fourth embodiment extending across the nasal cavity. As shown in fig. 6 and comparing the fourth embodiment with the first and second embodiments by referring to fig. 2 to 4, the inventor first points out that the technical feature that the front end where the front protrusion of the dilator 103 of the fourth embodiment is bent is slightly thinner and the rear end is wider is also adopted in the embodiment that the inventor makes itself for self use, and the purpose is that the slightly thinner front end can smoothly protrude into the lower turbinate rear end and the septum of the rear part of the nasal cavity with the most serious nasal obstruction, then the wider rear end takes over the slightly thinner front end to expand the ventilation channel between the lower turbinate rear end and the septum which is originally closed or has a narrow gap with the continued deep advancement of the dilator 103, and then after the nasal stent stops further advanced deeper into the nose, the dilator of the invention inserted in the lower turbinate rear end and the septum with at least one rectangular cross section can continuously exert the efficacy of restoring the ventilation and relieving nasal cavity. According to the experience of the inventor when using the self-made several initial embodiments, when using the nasal stent of all possible implementation forms provided by the invention in the evening, firstly, the purulent secretion caused by rhinitis in the nasal cavity is easily blown out by hot water application surface or is scratched out from the nasal vestibule by using a finger to pad a thin towel, in summer, the purulent secretion in the nasal vestibule is removed when washing the hot water bath, in winter, the user is recommended to fully warm the nose by immersing the whole head and face of the inventor in the hot water when washing the hot water face, then the purulent secretion in the nasal vestibule is scratched out and cleaned by using the nasal mucus and the finger to pad the thin towel until the finger is detected to be in the nasal vestibule, and the inventor also recommended to use the medical sterilizing cotton swab to rotate while continuously stretching into the nose to clean the purulent secretion deep in the nasal cavity and dirt of the nasal excrement and the like while the medical sterilizing cotton swab rotates in the direction from the lower part of the nose, so that the medical sterilizing cotton swab rotates from the upper part to the lower part of the nose when the medical cotton swab rotates from the upper part to the lower part of the nose. After the purulent secretion and dirt in the nasal cavity are cleaned, the nasal spray of glucocorticoids, such as mometasone furoate, or hypertonic saline, the nasal spray of Chinese herbal medicine, and the like for inhibiting inflammatory reaction of the nasal cavity are sprayed to two sides of the nasal cavity, and then the nasal spray of the nasal cavity is stretched into the nose through nostrils for a period of time, such as ten minutes to twenty minutes to half an hour, so that the nasal cavity ventilation channel is expanded to relieve nasal obstruction and ensure sleeping all night. Before noon afternoon nap, the inventor recommends that the user firstly cleans purulent secretions and nasal discharge in the vestibule and nasal cavity and then uses the nasal cavity support in all implementation forms provided by the invention so as to ensure that the user has a smooth and comfortable afternoon nap experience without nasal obstruction. However, when there is a bleeding condition in the nasal cavity, it is not recommended to use the present invention instead of using xylometazoline for several days in succession, after which the bleeding in the nasal cavity is healed, or to use the present invention in the form of an asymmetric dilator, as described above, to avoid the bleeding nostril. Further, as shown in this fig. 6 and the aforementioned fig. 4, both of these figures are separated and hidden by double-dashed lines without being shown schematically and are each separated by a cross-sectional view for illustrating the nasal stent for dilating the nasal airway after extending into the nasal cavity, the two cross-sectional views being located in the lower right corner of the lower view of fig. 4 and in the upper right part of the upper view of fig. 6. The lower right hand cross-sectional view of fig. 4 illustrates a stent in the form of a double stent as described above, while the upper right hand cross-sectional view of fig. 6 illustrates the stent of the third stent of the fourth embodiment after it has been inserted into the nasal cavity. As can be seen by comparing fig. 4 and 6, the second embodiment of the nasal ventilation channel according to the present invention is a stent having a rectangular cross section, while the fourth embodiment of the nasal ventilation channel according to the present invention is a stent having two rectangular cross sections, and as mentioned above, all of the rectangular sides have no elongated rods at only four end points thereof, so that the present invention can compress the nasal mucosa of the inner wall of the nasal cavity and cilia of the surface thereof with a small contact area as much as possible while ensuring effective and continuous support expansion of the ventilation channel. The nasal stent with a single rectangular cross section or at least two continuous rectangular cross section forms can effectively prevent the dilators from unnecessarily rotating in the nasal cavity as described above, so that two slender rods on two sides of the front protruding bending 107 of each layer of dilating stent 103 can continuously cling to the nasal septum and the opposite sides of the nasal septum respectively, thereby expanding the gap between the two to cure the nasal obstruction. The fourth embodiment is also shown in fig. 6 to show an implementation possibility of the basic technical scheme of the present invention, namely, a three-layer expansion bracket-shaped expander is adopted, and the large probability of the nasal stent in the fourth embodiment is used for rhinitis patients with larger nasal cavities and larger nasal cavities in specific implementation, and the large probability of the slender rod with the stainless spring steel wire 104 as a representative material is also a material with a smaller diameter than that of the 0.7 millimeter diameter stainless spring adopted by the inventor in the self-made two-layer expansion bracket-shaped embodiment. If a three-layered stent 103 is used as shown in fig. 6, the most front end of the stent 101 is provided with three layers of the front protrusion bends 107 as the front part protruding into the narrow or even closed gap between the nasal septum and the opposite side of the nasal septum causing the nasal obstruction symptoms, and the stent 103 is provided with two connecting bends 108, if the whole stent 103 is formed by continuously bending one elongated rod and avoiding traversing the nasal ventilation passage, the two connecting bends 108 are respectively positioned on the side close to the nasal septum and the side close to the opposite side of the nasal septum as shown in fig. 6. Of course, the fourth embodiment shown in fig. 6 can also have numerous optimization variants within the scope of the present invention, for example, it is entirely possible to use a dilator formed of three layers on one side and two layers on the other side, or the elongated bar on both sides of the protrusion of the stent closest to the palate on the lowermost side of the dilator has a zigzag bend to facilitate the contact of the dilator with the inferior turbinate as closely as possible to perform the dilation rather than with the lateral nasal wall outside the inferior meatus on the inferior turbinate, etc., and so on. In summary, any angular and any shape flexibility of the elongate shaft of the dilator on each side of the nasal stent that is advantageous for safely or efficiently alleviating the symptoms of nasal obstruction of a user is allowed and encompassed by the present invention.

Fig. 7 is a schematic view of the appearance and structure of a fifth embodiment of a nasal stent according to the present invention. The fifth embodiment, which is a prominent technical feature compared with the aforementioned first to fourth embodiments, is that the dilator 101 of the fifth embodiment includes a structure in which protrusions 10311 toward the bottom wall of the nasal cavity are formed on the lower dilating support 1031 closest to the bottom wall of the nasal cavity, and as shown in fig. 7 and referring to fig. 4, when the two side elongated rods constituting the anterior protuberance bending 107 of the lower dilating support 1031 have protrusions 10311 toward the palate 3 of the bottom wall of the nasal cavity, the lower dilating support 1031 inserted into the nasal cavity via the nostrils of the user together with all the dilating supports thereon is lifted up, and the fifth embodiment is designed so that all the dilating supports 103 of each side dilator 101 are accurately positioned as much as possible between the narrow lower nasal nail 203 and the nasal septum 201 causing nasal obstruction symptoms of most rhinitis patients rather than being inserted into the position under the lower nasal nail close to the bottom wall of the nasal cavity. The fifth embodiment is a specific example of the technical feature that the present invention can include any angle and any shape of bending deformation that is advantageous for the nasal stent to alleviate the symptom of nasal obstruction of the user.

Fig. 8 is a schematic view of the appearance and structure of a sixth embodiment of a nasal stent according to the present invention. The sixth embodiment has two technical features compared with the first embodiment, as shown in fig. 8 and referring to fig. 4, first, the front ends of all the expansion brackets included in each side expander 101 of the sixth embodiment have a recess 1030 structure far from the nasal septum 201 on the side close to the nasal septum, and the recess 1030 is actually that the elongated rod on the side close to the nasal septum has a bending structure far from the nasal septum. In addition, the length of the elongate rods that make up the sides of the connection bend 108 near the opposite sides of the nasal septum in the sixth embodiment is also relatively short compared to the first embodiment, and the connection bend 108 must be located inside the outer nostril after the sixth embodiment is inserted into the nasal cavity. Sixth embodiment the technical features of the two embodiments described above, which are different from the first embodiment but are also included in the technical solution of the present invention, are to reduce the contact area between the nasal stent and the dilators on both sides thereof and the inner wall of the nasal cavity as much as possible, thereby reducing unnecessary crush damage to the nasal mucosa and its cilia on the surface. The sixth embodiment is particularly suitable for rhinitis patients with nasal obstruction caused by the total nasal meatus being blocked by the hypertrophy of the rear end of the lower nasal turbinate, when the sixth embodiment is extended into the nasal cavity of a user, the part of the expansion bracket between the concave 1030 and the connecting bend 108 at the front end of each side expander can play a role of expanding the gap between the rear end of the lower nasal turbinate and the nasal septum so as to relieve the nasal obstruction, and the part behind the concave 1030 and the connecting bend 108 can be bent by virtue of the concave 1030 far away from the nasal septum 201 and the extrusion of the nasal mucosa on the opposite side of the nasal septum and the nasal septum without nasal obstruction can be reduced as much as possible by virtue of the slender rod which is arranged behind the connecting bend 108.

Fig. 9 is a schematic view of the appearance and structure of a sixth embodiment of a nasal stent according to the present invention. It will be seen more clearly from this figure that the sixth embodiment leaves a complete double sided dilating configuration only at the foremost end of the dilator 101 where it is most critical to dilate the total nasal passages, and that the recess 1030 and the rear portion of the connecting bend 108 leave only a single sided elongate shaft. Although the problem that the front end of the dilator is adhered to the nasal mucosa due to dry nasal discharge is certainly encountered in the use of the sixth embodiment, the contact area between the whole of the sixth embodiment and the inner wall of the nasal cavity is small, so that a user can easily detach the whole of each side of the dilator from the inner wall of the nasal cavity by slightly moving the handle 102 when taking out the sixth embodiment, and the dilator can be safely extracted from the nostril. Considering that nasal obstruction of most rhinitis patients is caused by hypertrophy of the rear end of the inferior turbinate, the sixth embodiment may be one of the preferred technical solutions in the specific embodiment of the present invention.

[ reference numeral list ] "1: a nasal cavity support; 101: a dilator; 102: a handle; 103: expanding the stent; 1030: a recess; 1031: a lower stent; 10311: a protrusion; 1032: an upper expansion stent; 104: stainless spring steel wire; 105: tail hook; 106: a circular ring; 107: bending the front protrusion; 108: connecting and bending; 109: elastic binding band, 2: a nose; 201: nasal septum; 202: opposite sides of the nasal septum; 203: lower turbinate; 204: the lateral wall of the nasal cavity; 3: a palate; 4: an elastic alloy wire mesh cylinder; 5: and (5) a plug.

Detailed Description

The invention is described in further detail below in connection with specific embodiments and based on the disclosure of the preceding paragraphs. As shown in fig. 2 and 4, the nasal stent 1 provided by the present invention, like the two prior nasal stents, allows a user to extend the nasal stent 1 provided by the present invention into his nose 2 via his nostril, so that the nasal stent can open the gap between the septum 201 and the opposite side 202 of the septum in the nose of the user, thereby realizing the effect of expanding the ventilation channel of the nose to relieve the nasal obstruction, and the opposite side 202 of the septum includes the outer side wall 204 of the nasal cavity included on the opposite side of the septum 201 in the nose and the upper middle and lower turbinates protruding from the outer side wall of the nasal cavity in the sense of anatomical sense of the nasal cavity, and the gap between the septum 201 and the opposite side 202 of the septum forms the main ventilation channel of the nose named as the total nasal passage. In comparison with fig. 1, 2 and 3, the difference between the two prior nasal stents is that the nasal stent provided by the present invention comprises two dilators 101 which can be simultaneously inserted into nostrils of both sides of a user, and the two dilators 101 are fastened and connected into a whole in the technical solution of the present invention as shown in fig. 2 to 6, and the connection part of the two dilators 101 fastened and connected into a whole at the rear end of the nasal stent 1 provided by the present invention is located outside the nostrils of the user after the user inserts the two dilators 101 of the nasal stent 1 into the nostrils of both sides simultaneously due to the anatomical features of the nasal septum of the human being. The connecting portion of the first to fourth embodiments shown in fig. 2 to 6 is a bent handle 102 extending over the entire nasal stent, although other shapes of connecting portions, such as those that securely hold the two separate dilators together, are also contemplated by the present invention. The dilator 101 shown in fig. 2 and 4 is used to open the gap between the nasal septum 201 and the opposite side 202 of the nasal septum in one nostril, thereby realizing an open airway for dilating the nose to relieve nasal obstruction. The present invention, as shown in fig. 2 and 4, provides two dilators 101 which extend into nostrils of a user at the same time, and one is to ensure that the dilator 101 in each nostril is stably and continuously spread out the gap between the septum 201 and the opposite side 202 of the septum in the position where the dilator 101 is located, because the two dilators 101 are fastened and connected together to form a whole after being inserted into nostrils of both sides by a user at the same time, in view of the anatomical characteristics of the human nose. In view of the fact that nasal obstruction is usually caused in both nostrils of a patient with common rhinitis to different degrees, the nasal stent provided by the invention also needs to be provided with an expander 101 for each nostril; even if the nasal obstruction of the nostril at the two sides of the patient with rhinitis is serious or the nasal obstruction at the single side is not obvious or bleeding occurs in the nostril at the single side, the nasal stent provided by the invention can select the asymmetric two-side dilator to deal with the situation that the dilator is not easy to be inserted, namely the third embodiment shown in fig. 5. As described above, the present invention has the advantages of low production cost and low cost, so that the nasal stents of various symmetrical and asymmetrical shapes provided for the dilators on two sides of the rhinitis user can be packaged and sold in one package in advance in a series of packages, and the user can conveniently select the nasal stents of corresponding shapes in the packages according to different conditions of the nose of the user. In addition, the term "adjective" as used herein is a composite of "shape" and "format" having the meaning of "style" and "specification".

Recall from fig. 1 that the above two conventional nasal stents are both the form of a circular tube of elastic alloy wire net, which relieves the nasal obstruction by the principle that the elastic alloy wire net spreads the gap between the nasal septum and the opposite side of the nasal septum when expanding in the nasal cavity, and referring to fig. 4, the bottom wall of the nasal cavity, i.e., the upper jaw 3, and the gap between the top wall of the nasal cavity, which is omitted from the illustration in fig. 4, are rarely narrowed, so that the portions of the circular tube-shaped elastic alloy wire net which are located on the bottom wall side of the nasal cavity and the top wall side of the nasal cavity after being inserted into the nose do not actually play a role of directly relieving the nasal obstruction, only as a source of the connecting portion and the partial elastic expansion force of the elastic alloy wire net located on the inner side wall portion and the outer side wall portion of the nasal cavity, and the portion of the elastic alloy wire net are firmly adhered to the bottom wall and the nasal mucosa once the nasal cavity is broken or when nasal discharge dries, and the two roles of the connecting portion and the partial elastic expansion force source are actually provided in other more concise and optimized forms, and the more optimal forms can be seen with reference to the specific embodiments illustrated in fig. 2 to 6. Specifically, as shown in fig. 2 to 6, each of the dilators 101 of the nasal stent for being inserted into the nostril of the user according to the present invention includes at least two layers of dilating stents 103 for simultaneously dilating the gap between the nasal septum 201 and the opposite side 202 of the nasal septum, the dilating stents 103 include a structure in which an anterior protrusion bending 107 formed by bending an elongated rod is formed at the foremost end of the dilating stents 103 with respect to the rear end of the nasal stent 1, and the elongated rod of the first to fourth embodiments shown in fig. 2 to 6 is made of a stainless spring wire. The stent 103 shown in fig. 4 comprises two elongated rods typically made of stainless spring steel wires on two sides of the anterior protuberance 108, which are respectively abutted against the nasal septum 201 and the opposite side 202 of the nasal septum and used for expanding the gap between the nasal septum 201 and the opposite side 202 of the nasal septum so as to realize the effect of expanding the ventilation channel of the nose to relieve nasal obstruction; when the user extends the nasal stents 1 into their nostrils, each stent 1 will be inserted and distracted with the anterior bend 108 as a front to the gap between the septum 201 and the opposite side 202 of the septum. Referring to the lower right hand corner of the drawings of figures 2 and 4 and the lower right hand view of figure 4 of the drawings, the present invention provides a stent which in use is in its simplest form inserted into each nostril, as shown in figure 4, and is in fact a rectangular cross-section stent, as shown in the lower right hand corner of figure 4, having an elongate rod of reference numeral 104 which abuts the septum 201 or the opposite side of the septum 202 at each of the four apices of the rectangle, and note that the four black dots which are located between the septum 201 and the lateral wall 202 of the septum on each side in the lower right hand corner of figure 4, and which enclose a rectangle, represent the cross-section of the stent 101 which constitutes each nostril, and each black dot represents the cross-section of the elongate rod which constitutes the stent 101 and all of the stent 103. It can be seen that the dilator 101 for each nostril of the nasal stent 1 provided by the present invention is simple and efficient in structure, the four upper and lower elongate rods contained in its simplest form are respectively abutted against the opposite sides 202 of the nasal septum 201 and the nasal septum and enlarge the gap therebetween to relieve nasal obstruction, the front folds 107 at the foremost ends of each pair of elongate rods of each layer not only provide the elasticity and rigidity required for expanding the gap between the nasal septum and the opposite sides of the nasal septum between each pair of elongate rods, but also act as a front edge for expanding the narrowest gap of the nasal cavity causing nasal obstruction symptoms of the user when the nasal stent is stretched into the nostril, i.e. the front folds 107 as shown in fig. 4 use the relatively sharp but smooth appearance without sharp burrs will not scratch or puncture the narrowest gap between the nasal septum 201 and the opposite sides 202 of the nasal septum, and then the two elongate rods on the opposite sides of the dilating stent 103 continue to push the nasal stent 1 deep into the gap between the nasal septum and the opposite sides of the nasal septum by the user, and the dilating stent 103 can of course continue to stop the nasal stent 101 from the opposite sides of the nasal septum until the nasal stent is completely stretched between the opposite sides 101 and the nasal septum is completely stretched from the opposite sides of the nasal septum 101. The cross section of at least two layers of expansion brackets 103 contained in each expansion bracket 101 just forms a rectangle which is not easy to rotate as shown in the right lower corner schematic diagram of fig. 4, under the continuous tight pressing action of the nasal septum 201 and the opposite sides 202 of the nasal septum on the two sides of each layer of expansion bracket 103, the stability of each side of expansion bracket 101 after stretching into the nasal cavity can be ensured without easy rotation, so that the two sides of the expansion bracket 103 can be ensured to continuously and efficiently enlarge the gap between the nasal septum 201 and the opposite sides 202 of the nasal septum, thereby effectively relieving the nasal obstruction of a user. Of course, in order to achieve the above purpose of efficiently and stably and permanently expanding the gap between the nasal septum and the nasal septum, the elongated rods on both sides of the expansion bracket 103 need to be tightly attached to the nasal septum 201 and the opposite side 202 of the nasal septum, and a certain elasticity and rigidity are required to ensure that the gap between the nasal septum 201 and the opposite side 202 of the nasal septum is expanded to release the nasal obstruction, and at the same time, the expansion bracket 103 is sized and elastic to avoid excessively squeezing the opposite side 202 of the nasal septum 20 and the nasal septum. Referring to fig. 2 to 6, since the nasal stent 1 according to the present invention has a simple structure, and the dilators 101 extending into each nostril and all of the dilating stents 103 included in the dilators are made of elongated rods typified by the stainless spring steel wires 104 used in the first to fourth embodiments, it is very easy to manufacture the dilators 101 and the dilating stents 103 thereof of a customized size according to the specific conditions of the inside of the nose of the user, and the inventor can adjust the length of the dilating stents 101, the width between the elongated rods at both sides and the size and sharpness of the protrusion bends 107 by using pliers only by hand when making the self-used embodiments by himself. Of course, the cross section of the lower right-hand corner of the lower view of fig. 4, and the upper right-hand corner of the upper view of fig. 6, which follows, is rectangular, because all the expansion brackets are manufactured by bending the elongated rod in the shape of a straight rod out of the front-protruding bend, and if any bending deformation of the elongated rod is conceivable, it is possible to form a complex cross section that is less rotatable than a rectangle within the scope of the technical solution of the present invention. For two existing nasal stents such as shown in fig. 1, referring to fig. 2 to 6 again, the nasal stent 1 provided by the present invention has a simple and efficient structure, and in fact, the nasal obstruction symptoms of most rhinitis patients are caused by the fact that the swelling and the thickening of the lower nasal concha 203 on the opposite side 202 of the nasal septum protrudes to one side of the nasal septum 201 to cause the narrowing of the total nasal passage which is the main ventilation passage of the nose, so that the nasal obstruction of most rhinitis patients can be effectively relieved only by opening the nasal septum 201 and the lower nasal concha 203 on the opposite side 202 of the nasal septum, and the expansion of the bottom wall and the top wall of the nasal cavity is not required as in the existing two nasal stents, the several most simplified nasal stents of the present invention shown in fig. 5 are sufficient to achieve the effect of expanding the gap between the nasal septum 201 and the opposite sides of the nasal septum by only tightly fitting and pressing the two elongated rods on the lower nasal septum 203 or the outer nasal sidewall 204 of the opposite sides of the nasal septum, respectively, so as to alleviate the nasal obstruction, and of course, the front bending 107 also needs to maintain a certain elastic force of springback after the elongated rods on the two sides composing the front bending 107 are pressed, and only needs to select a material with good elasticity to achieve such elastic force, for example, the inventor manually self-makes a stainless spring steel wire with a diameter of 0.7 mm for use in the specific embodiment. Furthermore, as can be seen from the schematic diagrams of fig. 4 and the lower right corner of fig. 4, unlike the prior art two nasal stents in which the rear end-sealing elastic alloy wire mesh fills the entire ventilation passage of the nostril, the nasal stent 1 provided by the present invention spans only the front-protruding bends 107 in the ventilation passage of each nostril, and the schematic diagram of the lower right corner of fig. 4 shows that the dilator 103 of the present invention in its simplest form comprises only two front-protruding bends 107, and the slender elongated rod constituting the front-protruding bends 107 does not hinder the normal ventilation of the nose of the user in theory and practice. In addition, compared with the prior two nasal stents which adopt fine elastic alloy silk screens to be tightly attached to the nasal septum and the opposite sides of the nasal septum and the gap between the two nasal stents is expanded, the simplest form of the two-layer expansion stent of the invention shown in the figures 2 to 5 only uses two fine slender rods to be tightly attached to the nasal septum and the opposite sides of the nasal septum and the gap between the two expansion rods respectively, has the advantages of simplicity and high efficiency, greatly reduces the contact area between the nasal stent 1 and the inner wall of the nasal cavity, greatly reduces the compression extrusion area and the compression degree of the nasal mucosa compared with the prior two nasal stents, avoids the damage to cilia on the surface of the nasal mucosa, and can more easily pull the nasal stent away from the inner wall of the nasal cavity under the action of light external force and avoid the rupture of the nasal mucosa even when nasal mucus or nasal mucus is dry at the attachment part of the nasal stent and the inner wall of the nasal cavity, and the contact area between the two slender rods and the inner wall of the nasal cavity is less than the silk screens of the prior reticular nasal stent. Of course, the dilator inserted into the nostril of the user at each side of the invention can also be made into the shape of three layers or even four layers of dilating stents as shown in fig. 5, so that the contact area with the inner wall of the nasal cavity is larger, the effect of dilating the total nasal passages of the main nasal ventilation passage is better, the stability of the dilator in the nasal cavity is better, and unnecessary rotation is less likely to occur, but more than two layers of dilating stents are required to avoid unnecessary contact with the inner wall of the nasal cavity so as to protect cilia on the surface of nasal mucosa of the inner wall of the nasal cavity. Finally, it should be noted that the nasal stent provided by the present invention has two mechanisms for preventing unnecessary rotation of the nasal obstruction-relieving dilator inserted into each nostril, referring to fig. 2 to 6, one mechanism is that the aforementioned invention adopts a double dilator-shaped structure fastened into one body by simultaneously extending into both nostrils, and the other mechanism is that the elongated rod of the dilating stent 103 constituting each side dilator 101 forms a rectangular structure in the nasal cavity with at least one of two opposite sides closely attached to the nasal septum 201 and the opposite sides 202 of the nasal septum, and the rectangle with one pair of opposite sides closely attached is not easily turned over from physical and geometrical point of view; of course, if the stent is formed of three or more layers, a plurality of the rectangular structures may be formed as shown in the upper right-hand schematic view of the upper view of fig. 6. The above two mechanisms for avoiding unnecessary rotation of the nasal stent in the nose are also a novel innovation of the present invention, and the two mechanisms not only can prevent unnecessary rotation of the nasal stent 1 in the nose, but also can facilitate the holding of the nose by the user and simultaneously extend the two dilators 101 fastened into a whole with reference to fig. 2 into the nostrils of the left and right sides respectively, thereby effectively relieving the nasal obstruction of the nostrils of the two sides, and the dilating stent 103 comprising at least one rectangular cross-section shape can also effectively realize the effect of dilating the nasal ventilation passage to relieve the nasal obstruction on the basis of minimizing the contact and extrusion with the nasal mucosa of the inner wall of the nasal cavity.

As an optimized technical measure of the above basic technical solution of the present invention, the elongated rods of all the expansion brackets included in the nasal cavity bracket may include any angle and any shape of bending deformation that is beneficial to the nasal cavity bracket to alleviate the nasal obstruction symptoms of the user, where the benefits herein refer to the benefits of the nasal cavity bracket provided by the present invention for safely and effectively alleviating the nasal obstruction symptoms of the user. For example, the slender rods of all the expansion brackets included in the nasal cavity bracket can be correspondingly customized according to the internal shapes of the noses of different users, so that the purpose that the slender rods are tightly attached to the nasal septum of the users as much as possible and the opposite sides of the nasal septum are achieved by utilizing the bending deformation of the slender rods at any angle and any shape in a three-dimensional space and the purpose that the gaps between the nasal septum and the nasal septum are expanded by utilizing the rigidity and elasticity of the slender rod materials; the area closely attached to the nasal septum of a user and the opposite side of the nasal septum can be increased through bending deformation at any angle and any shape in a three-dimensional space, so that the effect of dilating the nasal airway to relieve nasal obstruction is improved; the three-dimensional space structure formed by bending deformation of the slender rod at any angle and any shape can be utilized to realize the effect of being convenient to position in the nose of a user. Such a variety is not enough. Any three-dimensional shape can be produced just like the peptide chain forming the macromolecular protein, so long as the nasal stent can be beneficial to safely and efficiently relieving nasal obstruction, and any bending deformation of any angle and any shape forming the dilator and the slender rod of the dilating stent can be adopted in the production and the manufacture of the nasal stent. The second to sixth embodiments illustrated in fig. 3 to 9, which are different from the first embodiment, show the technical features of the shape of the elongate rod of the customizable stent according to the present invention.

As another optimized technical measure of the above-mentioned basic solution of the invention, referring to fig. 2 to 6, the nasal stent 1 may comprise means for limiting the depth of the dilator extending into the nose of the user via the nostrils. The nose is positioned behind and above the head and face of a human being and is connected with the cranium, and although the main passage for nasal ventilation is the main nasal passage which is positioned above the upper jaw which is the bottom wall of the nasal cavity, a user generally does not intentionally insert foreign matters into the nostrils of the user and deeply insert the foreign matters in the dangerous direction upwards and backwards, but the invention is used as a medical instrument for curing diseases and saving people, and the device is preferably arranged on a nasal cavity bracket. Many approaches to achieving such devices are known, such as fastening components to the rear of the dilator that block the dilator from extending too far into the nostrils or simply directly machining the elongate stem that forms the dilator and its stent into a bend that does not extend into the nostrils, such as the tail hooks 105 of the several embodiments shown in fig. 2-6.

As a preferred embodiment of the above-described solution employing means for limiting the depth of penetration of the dilator into the nose of the user through the nostrils, the nasal stents may be formed by bending only one continuous smooth-surfaced elongate rod, as shown in fig. 2-5, i.e. the two dilators of the nasal stent and all of the dilator's included, the connecting portions of the two dilators, and the means for limiting the depth of penetration of the dilator into the nose of the user through the nostrils are formed by bending one continuous smooth-surfaced elongate rod. In all of the embodiments shown in fig. 2-6, the elongate rod is a stainless spring steel wire 104. In this embodiment, as shown in fig. 2 to 5, it is preferable that all the adjacent two layers of the stent 103 included in each stent 101 are connected as one body by a connecting bend 108 between the two elongated rods belonging to the two layers of the stent 103. It is also geometrically certain in this embodiment that the connection of the two stent struts 103 is achieved and acts as a bending structure for the elongate rods. Thanks to the simple and efficient shape and structure of the nasal stent 1 provided by the invention, it is possible to manufacture and process the whole nasal stent by using one slender rod, and only bending of the slender rod is needed to connect the dilators 101 at two sides and all the expansion stents 103 of each layer contained in the dilators 101. Compared with the complex processing procedures involved in the production of the elastic alloy silk screen adopted by the traditional nasal stent, the raw materials for producing the slender rod of the nasal stent provided by the invention are much simpler, and generally, the raw materials are wiredrawing and subsequent heat treatment or surface treatment procedures.

As a preferred embodiment of the above-mentioned technical solution for processing the entire nasal stent using a single elongated rod, each of the dilators 101 of the nasal stent provided by the present invention as shown in fig. 2 to 5 may include only two layers of the dilating stent 103, and the lower dilating stent 1031 near the upper jaw 3 of the nasal bottom of the user and the upper dilating stent 1032 above the lower dilating stent 1031 are connected as one body with the connecting bend 108 located behind the anterior protuberance bend 107. It has been shown, both theoretically and in the inventor's own practice, that it is sufficient that the double-layered stent 103 supports and expands the gap between the septum and the opposite side 202 of the septum 201 by using only two elongated rods, respectively, and that unnecessary squeezing or destruction of the nasal mucosa cilia and the human biological tissue such as nerve vessels in the nasal cavity can be reduced and avoided as much as possible. In addition, in this embodiment, as shown in fig. 2 to 5, the elongated rods on the upper and lower sides forming the connection bend 108 are located on the same side, that is, the elongated rods on the upper and lower sides forming the connection bend 108, which are respectively associated with the upper and lower expansion brackets 103, are both abutted against the nasal septum 201 or the opposite sides 202 of the nasal septum after the nasal stent 1 is inserted into the nose of the user via the nostrils on both sides, so that the connection bend 108 can be prevented from crossing the ventilation channel of the nostrils, and the ventilation effect of the nose of the user is prevented from being affected as little as possible.

As another preferred embodiment of the above-described solution employing means for limiting the depth of the dilator 101 from extending too far into the nose of the user through the nostrils, the means for limiting the depth of the dilator 101 extending into the nose of the user through the nostrils as shown in fig. 2-6 is a bending structure of the elongate shaft at the rear end of the dilating rack 103, which bending structure is shown in the figures as a tail hook 105 in several examples shown in fig. 2-6, the tail hook 105 being capable of hooking the nose tip or soft tissue of the outer nose of the user to prevent the dilating rack 103 and thus the whole nasal rack 1 from extending further into the nose. The technical proposal that the objective can be easily achieved by simply bending the slender rod raw material represented by the stainless spring steel wire is of course preferred when producing the nasal stent. In this technical solution, in order to ensure that the nasal cavity support 1 can continuously play a role of expanding the gap between the opposite sides of the nasal septum and the nasal septum in the nasal cavity to facilitate ventilation of the nose when a user sleeps, the nasal cavity support 1 also comprises an anti-drop device for preventing the nasal cavity support 1 from slipping out of the nose after the nasal cavity support is inserted into the nose through the nostril for dredging the nasal cavity airway to relieve nasal obstruction, as shown in fig. 2. This solution for preventing the nasal stent from slipping out of the nostril is easy to implement, for example, referring to fig. 2, the device provided by the present invention for arranging a tether on the portion of the nasal stent 1 exposed to the nostril of the user facilitates the tying of the nasal stent to the face of the user, the tether may be a simple elastic strap 109 as shown in fig. 2 in the second to fourth embodiments, and the user may tie the elastic strap 109 passing through the circular rings 106 at the ends of the two tail hooks around the back brain spoon by bypassing the two ears of the user, thereby fixing the nasal stent 1 to the head and face of the user, so that the nasal stent 1 stays in the nose all the time to continuously expand the nasal ventilation channels of the two side expansion stents 103.

As a preferred embodiment of the above-mentioned technical solution using the elongate rod bending structure as a means for limiting the dilator from excessively extending into the nose and using the anti-drop means for preventing the nasal stent from slipping out of the nostril after extending into the nose, as shown in fig. 4 and referring to fig. 2, 3 and 6, when the nasal stent 1 is effective in the above-mentioned means for limiting the depth of the dilator 101 extending into the nose of the user via the nostril, the connecting bending 108 included in each dilator 101 of the nasal stent 1 is not located within the outer nostril when the dilator 101 is completely extended into the nose, rather at least is not located within the nostril beyond the threshold of the interface between the outer nose and the nostril, and thus is exposed to the nostril, or is located within the nasal vestibule of the anterior nostril, so that the user can operate the connecting bending 108 of a single dilator 101 with fingers and the elongate rod located on the opposite side of the connecting bending 108, so-called "finger operation" can be used by the user to reduce the contact force between the two fingers of the two sides of the two nasal stent and thus reducing the contact force between the two sides of the connecting bending 108 and the two nasal stent gently, and thus the two sides of the bending force between the two nasal stent can be reduced. In any case, the connecting bend 108 can be operated in various ways as long as it is not located in the nasal cavity which is inaccessible to the fingers of the user, so as to facilitate the operation of the dilator in the nasal cavity to be gradually separated from contact with the inner wall of the nasal cavity, and to facilitate the removal of the nasal stent provided by the invention without damaging the nasal epithelium and nasal mucosa and cilia thereof. The essential feature of this embodiment is that the length of the two elongate rods forming the connecting folds 108 of the connecting portions of the adjacent two stent extensions is long enough to be exposed within the nasal vestibule of the external nostril or even outside the external nostril after the dilator 101 has been fully inserted into the nose, so that it is convenient for the user to pinch and squeeze the elongate rods on both sides forming all stent extensions 103 with his fingers to cause the elongate rods comprised by all stent extensions 103 to come out of contact with the inner and outer nasal walls in advance before the nasal stents are extracted from the nostrils, preventing tearing and bleeding of the nasal mucosa that would be caused by drying out of mucus secreted by the nasal mucus or nasal mucosa epithelium, adhering the elongate rods comprising all stent extensions 103 and thus the dilator 101 to the nasal mucosa when the user pulls the nasal stents outwards. Of course, since the contact area between the plurality of elongated rods and the nasal mucosa is inherently small compared with the elastic alloy wire mesh with a finer area of the conventional nasal stent, in practice, in order to safely withdraw the nasal stent 1 provided by the present invention, the elongated rods of all the expansion stents 103 and the nasal mucosa adhered to the elongated rods are slightly moved to slowly separate from the adhesive state, so that the entire nasal stent 1 can be smoothly withdrawn from the nose of the user without damaging the nasal mucosa, and in addition, the convenience of the exposed connecting and bending 108 provided by the present embodiment is more favorable for safely and smoothly withdrawing the nasal stent 1 provided by the present invention from the nose of the user, thereby preventing the nasal mucosa from being torn and bleeding injury caused by the nasal mucosa being torn when the nasal stent is withdrawn outwards due to dry nasal discharge and the dilator 101 of the nasal stent 1 being adhered to the nasal mucosa. In fact, in order to prevent the nasal stent 1 from scratching the nasal mucosa, the present invention has a lot of thought, except for the connecting bending 108 exposed out of the nostril, which is described in the above preferred embodiment, in fact, as shown in fig. 2 to fig. 6, the part of each side of the dilator of the nasal stent 1 extending into the nose of the user is a whole slender rod which is bent, unlike the existing elastic alloy wire mesh-shaped nasal stent, which has a plurality of alloy wires and welding points between the alloy wires. Because each side of the expander 101 is formed by simply superposing and combining at least two layers of the expansion brackets 103, and each expansion bracket 103 is formed by bending an entire slender rod to form the protrusion bending 107, even if some optimization measures are added, the entire slender rod forming each expansion bracket 101 is not bent for a plurality of times, so that the surface of the slender rod is not easy to damage nasal mucosa as long as the smoothness of the surface of the slender rod is ensured. However, in the conventional nasal stent shown in fig. 1, because of the numerous fine alloy wires and the welding connection points between the alloy wires, the nasal mucosa may be scratched when the nasal stent is used due to burrs formed after the alloy wires are broken or the welding connection points are broken in long time. By making a figure like this, the dilator 101 at each side of the nasal stent provided by the invention is better than at least two slender blunt swords which are overlapped up and down, each blunt sword corresponds to one layer of the dilating stent 103 of the dilator 101, the tip of the blunt sword is equivalent to the forefront protrusion bending 107 of the dilating stent 103, and the tips of the blunt swords and the sword edges at two sides of the sword body are dull and smooth in surface. The process of inserting each side of the dilator 101 of the nasal stent 1 into the nose through nostrils is equivalent to inserting at least two blunt swords which are overlapped up and down into the nose, the sharp and smooth-surfaced sword tips of the blunt swords can be easily penetrated in the process to cause the narrowest even closed gap between the nasal septum of the nasal obstruction and the opposite sides of the nasal septum, and then the narrowest gap is enlarged by the sword body behind the sword tips along with the extension and advancement of the blunt swords deeper into the nose, of course, the sword tips of the blunt swords, that is, the protrusion bending 107 of each dilating stent 101 can also enlarge the narrowest even closed gap, and the whole process can not scratch the nasal mucosa due to the fact that the whole blunt swords, that is, the surface of the whole dilating stent 103, are a smooth whole body. The following optimization scheme of the present invention can be compared with "gold snake sword" mentioned in Jin Yongwu 'Bixue sword', the Jin Shejian is well known to be not a common straight long sword but a bending deformation with a bending curve, and the optimization measure corresponding to the present invention is to make the expander 101 and the expansion bracket 103 which perform to expand the gap between the nasal septum 201 and the opposite side 202 of the nasal septum to release the nasal obstruction generate various possible bending deformations which are favorable for releasing the nasal obstruction.

As another optimized technical measure of the above basic technical solution of the present invention, the connecting portion of the two dilators at the rear end of the nasal stent has elasticity for changing the included angle between the two dilators, just like the elasticity provided by the incomplete ring at the rear end of the handle in all the embodiments shown in fig. 2 to 6 combined with the elasticity of the stainless spring wire material thereof. With reference to fig. 4, the starting point for this optimization solution is to keep the two side dilators 101 apart and close together in order to facilitate the purpose of assisting in dilating the gap between the nasal septum and the opposite side of the nasal septum by simultaneously pinching the nasal septum 201 of the forcing user from both sides of the nasal septum 201 or simultaneously compressing the lateral nasal wall or inferior turbinate contained on the opposite side of the nasal septum, i.e. to have the two side dilators 101 combine in addition to having each side dilator 101 individually dilate the ventilation passage of each nostril while simultaneously dilating the ventilation passage of both nostrils. There are many more ways to achieve the elasticity between the two expanders 101 in engineering, and the inventors in referring to the round marking frame at the right lower corner of the upper left view of fig. 3 also achieve greater elasticity of the changing included angle between the two expanders by winding the length of stainless spring wire 104 connecting the two expanders 101 into a multi-layered circular ring structure like a pin and a spring when self-made with the stainless spring wire in an entire embodiment.

As a preferred embodiment of the above-described optimization scheme in which each of the dilators includes only two layers of the dilating stents, as shown in fig. 2, 3 and 4, the upper and lower elongate rods constituting the connecting and bending portions are respectively attached to the upper and lower dilating stents and are respectively attached to the opposite sides 202 of the nasal septum after the nasal stent 1 is inserted into the nose of the user via the nostrils on both sides, that is, the connecting and bending portion 108 and the two elongate rods constituting the connecting and bending portion 108 are respectively located at the outermost sides of the two dilators and are attached to the opposite sides 202 of the nasal septum after the two dilators are inserted into the nose. In this embodiment, the nasal stent 1 further comprises means for limiting the depth of the dilator 101 extending into the nose of the user through the nostrils, and the means for limiting the depth of the dilator 101 extending into the nose of the user through the nostrils as shown in fig. 2, 3 and 4 is a tail hook 105 formed by bending an elongated rod at the rear end of the dilating stent 1032 on each side away from the nostril direction of the user, and the end of the elongated rod at the end of the tail hook 105 is bent into a circular ring 106 structure which winds the extreme end of the elongated rod without exposure. The tail hook 105 formed by simple bending can be said to be the simplest means for limiting the depth of the dilator 101 extending into the nose, and is of course preferred for practicing the invention; the purpose of the structure of bending the extreme ends of the slender rods of the two tail hooks 105 of the two side dilators 101 into a coiled circular ring 106 is to seal the extreme ends of the two sharp extreme ends of the slender rods forming the whole nasal stent in the circular ring 106 structure to prevent the user from being injured by accident in use. In addition, in this embodiment, the two rings 106 at the ends of the two tail hooks may also serve as an anti-falling device for preventing the nasal cavity support 1 from falling out of the nose after being retracted outwards from the nostrils, and only one elastic strap 109 is required to pass through the two rings 106 to bypass the ears of the user and be tied to the rear brain, as shown in fig. 2, so that the nasal cavity support 1 which has been extended into the nose 2 of the user can be fixed on the face of the user to prevent the nasal cavity support 1 from falling out of the nose. The anti-drop device is said to be the most concise and practical, and especially, the nasal cavity bracket 1 provided by the invention can ensure that a user cannot be insomnia caused by nasal obstruction overnight when sleeping at night. In this embodiment, referring to fig. 4, in the case where the tail hooks 105, which are used to limit the depth of the dilators 101 extending into the nose of the user via the nostrils, are effective to catch the nose of the user, the connection bends 108 included in each dilator 101 of the nasal stent 1 will not be located within the outer nostrils, which may be easily achieved in manufacturing practice, for example, by positioning the connection bends 108 back to be substantially flush with the tail hooks 105 or even beyond the tail hooks 105. Thus, the user can hold the two connection bends 108 on the outermost sides of the two side dilators 101 with the index finger and thumb of one hand at the same time and pinch the two connection bends 108 slowly so that the two side dilators 1 of the nasal stent 1 are separated from the contact between the outer side wall 204 of the nasal cavity or the lower nasal concha 203 slowly, and then the nasal stent 1 can be extracted slowly from the nose 2 of the user, so that the nasal mucosa can be prevented from being torn when the nasal stent 1 is extracted due to the dry nasal mucus which adheres the dilators 101 on the inner wall of the nasal cavity. In this embodiment, as shown in fig. 2 to 4, the connection portions of the two side dilators 101 of the nasal stent 1 are formed by bending between the lower dilating stents 1031 of the two side dilators 101, and the connection portions of the two side dilators 101 of the nasal stent 1 form a handle 102 for the user to hold the nasal stent 1 at the rear end of the nasal stent 1, which is easy to implement in engineering, and only the bending between the lower dilating stents 1031 of the two side dilators 101 is extended toward the rear end of the nasal stent 1 to facilitate the user to hold the two dilators 101 of the nasal stent 1 by fingers, so that the user can hold the handle 102 to operate the two dilators 101 of the nasal stent 1 in use. Of course, as shown in fig. 2 to 4, the two expanders 101 are also integrally connected by fastening the handles, after all, the two expanders 101 and the handles 102 are made of a whole continuous slender rod through multiple bending processes. Finally, it should be pointed out that this embodiment is actually a summary of the first examples of self-use made by the inventor by himself using a stainless spring wire with a diameter of 0.7 mm and bending the soft towel with a vice in a purely manual manner, and has very high practical value.

The invention also provides a nasal stent manufacturing device, which can automatically bend a continuous slender rod for multiple times according to the related parameters input into the nasal stent manufacturing device and finally manufacture the nasal stent according to the technical scheme that the whole continuous slender rod with smooth surface is bent to form the nasal stent. The nasal stent manufacturing device automatically generates a nasal stent which can be most attached to the inner wall of a nose of a patient according to specific form and size data of the inside of the nose of the patient generated by medical imaging equipment such as CT (computed tomography) and nuclear magnetism based on the principle that the nasal stent is simple and straight white, and the efficient and concise shape and structure, and finally, a nasal stent which is suitable for a specific patient is formed by modifying and optimizing related parameters such as an included angle between a protrusion bending and a connecting bending, a distance between the protrusion bending and the connecting bending and the like through a man-machine interface by an experienced doctor, and selecting an elongated rod raw material with parameters such as a certain diameter, an elastic coefficient and the like according to all the determined parameters. In specific implementation, the nasal stent manufacturing device can even manufacture a plurality of nasal stent sets with different shapes at one time for rhinitis patients to choose, for example, the nasal stent manufacturing device comprises two side dilators which are approximately symmetrical and suitable for the situation that the nasal cavities at two sides have no bleeding, the two side dilators which are asymmetrical and suitable for the situation that the nasal cavities at one side have injured bleeding and the like.

The inventor has shown the function and structure of the technical solution of the present invention with high efficiency and conciseness through the above six embodiments, and unfortunately, the technical solution of the present invention cannot be further exemplified, and any optimized deformation which is beneficial to safely and efficiently alleviating the symptom of nasal obstruction can be made to the shape of the stainless spring wire of the expansion bracket 103 of the expander 101. It should be noted that all the embodiments described above are not intended to limit the embodiments of the present invention, and any modifications, equivalent substitutions, conventional improvements, etc. within the technical scope of the technical solution provided by the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A nasal cavity support, which can be used for a user to extend the nasal cavity support into the nose of the user through nostrils so as to lead the nasal cavity support to prop open the gap between a nasal septum (201) and opposite sides (202) of the nasal septum in the nose of the user, thereby realizing the effect of expanding the ventilation channel of the nose to relieve nasal obstruction; the nasal stent is characterized in that:

the nasal cavity bracket comprises two dilators (101) which can be simultaneously and respectively stretched into nostrils at two sides of a user, and the two dilators (101) are fixedly connected into a whole; each expander (101) extending into a nostril of a user comprises at least two layers of expansion brackets (103) for simultaneously expanding a gap between a nasal septum and opposite sides of the nasal septum, each expansion bracket (103) comprises a structure of an anterior protuberance bending (107) formed by bending an elongated rod at the foremost end of the expansion bracket (103) relative to the rear end of the nasal bracket, and the expansion bracket (103) comprises two side elongated rods forming the anterior protuberance bending respectively propped against the nasal septum (201) and opposite sides (202) of the nasal septum and expanding the gap between the nasal septum (201) and the opposite sides (202) of the nasal septum so as to realize an air ventilation channel for expanding the nose to relieve the effect of nasal obstruction.

2. A nasal stent according to claim 1, wherein: the elongate rods of all the expansion brackets (103) included in the nasal stent may comprise any angle and any shape of bending deformation that is advantageous for the nasal stent to alleviate the symptoms of nasal obstruction of the user.

3. A nasal stent according to claim 1, wherein: the nasal support comprises means to define the depth to which the dilator (101) protrudes into the user's nose via the nostrils.

4. A nasal stent according to claim 3 wherein: the nasal stent is formed by bending a continuous and smooth-surface slender rod, namely, the two dilators (101) of the nasal stent and all the dilating stents (103) contained by each dilator (101), the connecting parts of the two dilators (101) and the device for limiting the depth of the dilators (101) extending into the nose of a user through nostrils are formed by bending a continuous and smooth-surface slender rod; all adjacent two layers of expansion brackets (103) included in each expander (101) are connected into a whole through connecting bends (108) between two slender rods belonging to the two layers of expansion brackets (101).

5. A nasal stent according to claim 4, wherein: each expander (101) comprises two layers of expansion brackets (103), wherein a lower expansion bracket (1031) close to the upper jaw at the bottom of the nasal cavity of a user and an upper expansion bracket (1032) positioned above the lower expansion bracket (1031) are connected into a whole through the connecting bending (108) positioned behind the front protruding bending (107); the upper and lower elongated rods forming the connecting bend (108) are positioned on the same side, namely the upper and lower elongated rods forming the connecting bend (108) which are respectively arranged on the upper and lower expansion brackets are respectively clung to the nasal septum (201) or the opposite sides (202) of the nasal septum after the nasal bracket stretches into the nose of a user through nostrils at both sides.

6. A nasal stent according to claim 3 wherein: the means for limiting the depth of the dilator (101) extending into the user's nose through the nostrils is a bent structure of the elongate rod at the rear end of the dilating support (103) which is offset from the direction of the user's nostrils; the nasal support may also include anti-slip means for preventing the nasal support from slipping out of the nose after the nasal support is inserted into the nose via the nostrils when the user is to clear the nasal airways to relieve nasal congestion.

7. A nasal stent according to claim 6, wherein: in the event that the nasal stent is effective in the means for limiting the depth of penetration of the dilator (101) into the user's nose via the nostrils, each dilator (101) of the nasal stent includes the connecting bend (108) which does not lie within the outer nostril when the dilator (101) is fully extended into the nose.

8. A nasal stent according to claim 1, wherein: the connecting part of the two dilators (101) at the rear end of the nasal stent has elasticity for changing the included angle between the two dilators (101).

9. A nasal stent according to claim 5, wherein: the upper and lower elongate rods which make up the connecting bend (108) and which are separate upper and lower dilating brackets are each positioned against opposite sides 202 of the nasal septum after the nasal bracket has been inserted into the user's nose via the nostrils, the nasal bracket including means for limiting the depth of insertion of the dilator (101) into the user's nose via the nostrils, the means for limiting the depth of insertion of the dilator (101) into the user's nose via the nostrils being a tail hook (105) formed by the bent structure of the elongate rods at the rear end of the dilating bracket (1032) on each side from the nostril direction of the user, the ends of the elongate rods at the ends of the tail hooks (105) being bent into a loop (106) configuration which wraps the extreme ends of the elongate rods without exposure; the nasal support is such that the connection bend (108) included in each dilator (101) of the nasal support does not lie within the outer nostril in the event that the tail hooks (105) to define the depth of the dilator extending into the user's nose via the nostrils are operative to hook the user's nose with each dilator (101) prevented from extending further into the nose; the connecting parts of the two side dilators (101) of the nasal stent are formed by bending between the lower dilating stents (1031) of the two side dilators (101), and the connecting parts of the two side dilators of the nasal stent form a handle (102) which can be used for a user to hold the nasal stent at the rear end of the nasal stent.

10. A nasal stent manufacturing device, which is characterized in that: the nasal stent fabrication device can automatically perform a plurality of bending operations on a continuous slender rod according to the relevant parameters input into the nasal stent fabrication device and finally fabricate a nasal stent according to claim 4.