CN209848070U - Inflatable nasopharynx breather pipe - Google Patents

Abstract

The utility model provides an inflatable nasopharyngeal ventilation tube, relates to the technical field of respiratory appliances, and solves the technical problem of poor user experience when using the existing nasopharyngeal ventilation tube. The device includes a nose end, a nasal cavity section, a pharyngeal section and a catheter; after the inflatable nasopharyngeal ventilation tube is inserted into the human body from the nostril of the human body, the nose end is outside the nostril, and the nasal cavity section is in the nasal cavity of the human body. The pharyngeal segment is in the pharyngeal cavity of the human body; the nose end is provided with a hollow bracket and gas can enter the human body through the hollow area of the hollow bracket; the nasal cavity segment and the pharyngeal segment both include a hollow tube through which gas can pass, The pharyngeal segment also includes an air bag arranged outside the hollow tube; the air bag communicates with the catheter, and after gas is injected through the inlet end of the catheter, the air bag can expand and deform and come into contact with the human pharynx . The utility model has little stimulation to the human body during implantation and use, can moisten the respiratory tract, and has better user experience.

Description

inflatable nasopharyngeal airway

technical field

The utility model relates to the technical field of respiratory appliances, in particular to an inflatable nasopharyngeal ventilation tube.

Background technique

The nasopharyngeal ventilation tube is a simple and convenient extraglottic ventilation device, which is used to relieve upper airway obstruction and keep the airway unobstructed. It is mainly used as an auxiliary device for airway management by doctors and nurses in clinical departments. Symptoms of shortness of breath such as snoring are due to the relaxation of the mandibular joints and the back of the tongue, resulting in airway compression and low tracheal ventilation. The existing nasopharyngeal ventilation tube is mainly used for medical purposes, and it is inconvenient to be directly used to solve symptoms of poor breathing such as snoring.

The applicant finds that the prior art has at least the following technical problems:

The existing nasopharyngeal ventilation tube is inconvenient to implant and has a strong foreign body sensation, and it is also inconvenient to be used to stop snoring. At the same time, the inhaled and exhaled gas does not stay in the nasal cavity but directly passes through the nasopharyngeal ventilation tube, and the function of nasal mucosa to humidify the gas cannot be exerted. , leading to dryness of the airway below the nose, both of which result in a poor user experience in terms of comfort.

Contents of the invention

The purpose of this utility model is to provide an inflatable nasopharyngeal ventilation tube to solve the inconvenience of implanting the nasopharyngeal ventilation tube in the prior art and the strong foreign body sensation, easy drying, and poor user experience in terms of comfort technical problem. The many technical effects that can be produced by the preferred technical solutions among the many technical solutions provided by the utility model are described in detail below.

In order to achieve the above object, the utility model provides the following technical solutions:

The expandable nasopharyngeal ventilation tube provided by the utility model includes a nose end, a nasal cavity segment, a pharyngeal segment and a catheter; after the expandable nasopharyngeal ventilation tube is inserted into the human body from the nostril of the human body, the nose end is outside the nostril, and the The nasal cavity segment is in the nasal cavity of the human body, and the pharyngeal segment is in the pharyngeal cavity of the human body; the nose end is provided with a hollow bracket and gas can enter the human body through the hollow area of the hollow bracket; the nasal cavity segment and the pharyngeal segment Each includes a hollow tube through which gas can pass, and the pharyngeal segment also includes an air bag arranged outside the hollow tube; the air bag communicates with the catheter, and after gas is injected through the inlet end of the catheter, the The air bag can inflate and deform and come into contact with the human pharynx.

Optionally, the air bag has a helical structure.

Optionally, the hollow tube is connected to the airbag through a support.

Optionally, the support member communicates with the airbag as a whole.

Optionally, three support members are provided on each layer of the spiral structure.

Optionally, the catheter and the hollow tube are made of medical silicone.

Optionally, both the airbag and the supporting member are made of rubber.

Optionally, the catheter is arranged inside the nasal cavity segment and connected with the nasal cavity segment.

Optionally, the inlet end is provided with a one-way valve through which gas can enter the conduit, and the gas in the conduit cannot flow out through the one-way valve.

Optionally, the ratio of the outer dimension of the cross section of the hollow tube to the outer dimension of the cross section of the airbag after inflation is 1:4.

Any of the above technical solutions can at least produce the following technical effects:

The inflatable nasopharyngeal ventilation tube provided by the utility model has little stimulating effect on the human body during implantation and use, and at the same time can achieve the effect of moistening the respiratory tract, and the user has a strong sense of comfort and a better experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a schematic view of the inflated pharyngeal segment of the inflatable nasopharyngeal airway.

In the figure 10, nose end; 11, hollow bracket; 20, nasal cavity segment; 30, pharynx segment; 31, air bag; 32, support member; 40, catheter; Empty tube.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other implementations obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

The utility model provides an inflatable nasopharyngeal ventilation tube, as shown in FIG. After the expandable nasopharyngeal ventilation tube is inserted into the human body from the nostril of the human body, the cross-sectional area of the nose end 10 is larger than the area of the nostril of the human body, so the nose end 10 can stay outside the nostril, the nasal cavity segment 20 is in the nasal cavity of the human body, and the pharyngeal segment 30 is in the human body in the pharyngeal cavity. The nose end 10 is provided with a hollow bracket 11. The hollow bracket 11 prevents the nose end 10 from slipping into the human body, and the gas can enter the human body through the hollow area of the hollow bracket 11. After the gas passes through the nasal mucosa to fully humidify the gas, part of the humidified gas enters the body. Pharynx and the respiratory tract below the pharynx, reducing the discomfort caused by the dry respiratory tract caused by the commonly used nasopharyngeal airway. Both the nasal cavity section 20 and the pharyngeal section 30 include a hollow tube 50 through which gas can pass. One end of the hollow tube 50 is connected to the nose end 10, and the gas outside the inflatable nasopharyngeal ventilation tube can enter the pharynx and pharynx of the human body through the hollow tube 50. The airway below the pharynx. The pharyngeal segment 30 also includes a balloon 31 disposed outside the hollow tube 50 . The airbag 31 is in communication with the catheter 40, and after gas is injected through the inlet end 41 of the catheter 40, under the pressure of the injected gas, the airbag 31 can expand and deform and come into contact with the pharynx of the human body. After the airbag 31 can be inflated and deformed, it can avoid the reduction of airway ventilation caused by pharynx compression, make breathing more smooth, and is convenient for anti-snoring use. The air bag 31 of the pharyngeal section 30 is an air bag that can expand and deform. When the air bag is not inflated, the volume occupied by the pharyngeal section 30 is small, which is convenient for implanting the inflatable nasopharyngeal ventilation tube into the human body, and can also reduce the discomfort to the human body during implantation. sense. The airbag 31 needs to be made of a soft material to be able to expand, which is less irritating to the pharynx than the common silicone material in the pharynx of the nasopharyngeal airway. Therefore, the inflatable nasopharyngeal ventilation tube provided by the utility model is convenient for snoring prevention, can exert the moisturizing effect of the nasal mucosa to avoid dryness, and has little stimulating effect on the human body during implantation and use, and the user has a strong sense of comfort. The experience is better.

As an optional embodiment, the airbag 31 has a helical structure with a circular cross-section. After the airbag 31 is inflated, the airbag 31 is cylindrical as a whole without abnormal shape, and is convenient for contact with the pharynx of the human body. There is also a certain space between each layer of the helical structure, which is convenient for the expansion of the airbag 31. The hollow tube 50 is connected to the airbag 31 through a support member 32 , preferably by glue. The support member 32 can prevent the airbag 31 from being deformed and detached from the hollow tube 50 . The support member 32 and the airbag 31 are connected together as a whole. When the airbag 31 expands under the action of air pressure, the support member 32 will also expand accordingly, so as to facilitate the support of the airbag 31 and avoid the discomfort caused by the movement of the airbag 31 during use. There are three support members 32 on each layer of the spiral structure, and three support members have a better support effect. As a preferred solution, an expandable layer of membrane structure or bag structure can also be arranged on the outside of the airbag 31, which can ensure the smooth ventilation of the airbag 31, and at the same time cover the helical structure of the airbag 31 as a whole after being inflated together with the airbag 31. , can also reduce some discomfort brought by the helical structure of the airbag 31 and the part of the concave-convex structure on the contact surface of the pharynx of the human body to the human body.

As an optional embodiment, the material of the catheter 40 and the hollow tube 50 is preferably medical silicone, which is relatively soft and can also reduce the irritation of the catheter 40 and the hollow tube 50 to the human body to a certain extent. The material of the airbag 31 and the supporting member 32 is rubber, which is elastic and can produce large deformation under the action of a small external force, and can return to its original shape after the external force is removed, which is convenient for use as the material of the airbag.

As an optional embodiment, the catheter 40 is arranged on the inside of the nasal cavity 20 and connected to the nasal cavity 20 . The nasal cavity section 20 and the corresponding hollow tube 50 and the catheter 40 are integrally manufactured to form such a connection relationship, which avoids new stimulation of the nasal cavity caused by the catheter 40 when the inflatable nasopharyngeal airway is used, and also prevents the catheter 40 from being used in the inflatable nasal cavity. It is also safer to prevent damage or deformation during the implantation of the pharyngeal airway. Simultaneously, the inlet end 41 of conduit 40 is provided with one-way valve 42, and gas can enter described conduit 40 from one-way valve 42, and the gas in conduit 40 cannot flow out from one-way valve 42, and one-way valve 42 is connected with commonly used trachea. The structure of the one-way valve used for the inflation of the intubation is the same, and the one-way valve is convenient for inflating the catheter 40 and the air bag 31 connected with it, and also avoids gas leakage. The air inlet end 41 of conduit 40 is connected with the ventilating device outside human body again, and ventilating device is preferably the syringe that can calibrate the amount of gas, according to the air bag 31 inflated to the best expansion state when the total gas amount required in the conduit 40 is passed through the syringe The air bag 31 can be inflated to the best state by feeding a corresponding amount of gas, and then the airbag 31 can be sealed by the one-way valve 42 to avoid gas leakage. The catheter 40 can introduce gas from an external ventilation device, causing the air bag 31 to expand and deform under pressure, and cooperate with the one-way valve 42 to make the air bag 31 expand and deform under pressure and maintain this expanded state. The operation is simple and easy to achieve.

As an optional embodiment, the ratio of the cross-sectional outer contour size of the hollow tube 50 to the expanded cross-sectional outer contour size of the airbag 31 is 1:4, and the cross-sectional outer contour size of the nasal cavity section 20 is much smaller than the nasal cavity, The foreign body sensation brought by the nasal cavity section 20 can be reduced, and the comfort of the inflatable nasopharyngeal ventilation tube can be realized to a large extent.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (10)

1. An inflatable nasopharyngeal ventilation tube, characterized in that it comprises a nose end, a nasal cavity segment, a pharyngeal segment and a catheter; after the inflatable nasopharyngeal ventilation tube is inserted into the human body from the nostril of a human body, the nose end is outside the nostril , the nasal cavity segment is in the nasal cavity of the human body, and the pharyngeal segment is in the pharyngeal cavity of the human body; the nose end is provided with a hollow bracket and gas can enter the human body through the hollow area of the hollow bracket; the nasal cavity segment and the The pharyngeal segment all includes a hollow tube through which gas can pass, and the pharyngeal segment also includes an air bag arranged outside the hollow tube; the air bag communicates with the catheter, and after injecting gas through the inlet end of the catheter , the air bag can be inflated and deformed to be in contact with the pharynx of the human body. 2 . The inflatable nasopharyngeal airway according to claim 1 , wherein the air bag has a helical structure. 3. The inflatable nasopharyngeal airway according to claim 2, wherein the hollow tube is connected to the air bag through a support. 4. The inflatable nasopharyngeal airway according to claim 3, characterized in that, the support member and the air bag communicate with each other as a whole. 5 . The inflatable nasopharyngeal airway according to claim 4 , wherein there are three support members on each layer of the spiral structure. 6 . 6. The inflatable nasopharyngeal ventilation tube according to claim 5, wherein the catheter and the hollow tube are made of medical silica gel. 7 . The inflatable nasopharyngeal airway according to claim 6 , wherein the material of the air bag and the supporting member is rubber. 8 . 8 . The inflatable nasopharyngeal airway according to claim 1 , wherein the catheter is arranged inside the nasal cavity and connected to the nasal cavity. 9. The inflatable nasopharyngeal ventilation tube according to claim 8, wherein the air inlet end is provided with a one-way valve, and gas can enter the catheter through the one-way valve, and the gas in the catheter No flow from the one-way valve. 10. The inflatable nasopharyngeal airway according to any one of claims 1-9, wherein the ratio of the cross-sectional outer contour dimension of the hollow tube to the cross-sectional outer contour dimension after the balloon is inflated is 1:4.