CN219148874U

CN219148874U - Nasopharynx airway capable of automatically expanding

Info

Publication number: CN219148874U
Application number: CN202221960463.9U
Authority: CN
Inventors: 高雅; 衡垒; 朱珊珊
Original assignee: Xuzhou Hospital Affiliated To Jiangsu University
Current assignee: Xuzhou Hospital Affiliated To Jiangsu University
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-06-09
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses an automatically-expandable nasopharyngeal airway, and belongs to the technical field of medical appliances. Comprises a nasopharynx airway main body and a fixed sleeve; the nasopharynx airway main body comprises a contractible vent pipe, and contractible supporting bead rings are uniformly distributed along the length direction of the vent pipe on the wall of the vent pipe; a breathing machine connector is arranged at the opening of the nose end of the breathing pipe, and one side of the nose end of the breathing pipe is connected with a fixing buckle; the fixed sleeve comprises a fixed sleeve main body sleeved outside the vent pipe, and a fixed buckle through groove for the fixed buckle of the vent pipe to pass through in a sliding manner is formed in one side of the fixed sleeve main body. The nasopharynx airway has smaller diameter and soft material when being placed in the nasopharynx part, and is designed to be fitted with a physiological curve, so that pain to a patient is avoided; after the fixed sleeve is pulled out, the supporting bead ring has certain elasticity after being automatically expanded, so that the airway is prevented from collapsing, and the ventilation effect is guaranteed.

Description

Nasopharynx airway capable of automatically expanding

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an automatically-expandable nasopharyngeal airway.

Background

The nasopharynx airway is a simple auxiliary ventilation device, is used for relieving upper respiratory obstruction, keeps the airway unobstructed, and has simple and convenient operation and strong practicability. At present, the utility model is often used as an auxiliary tool for airway management in many clinical departments, and is also applied to airway management in emergency cardiopulmonary resuscitation. Ventilation management during general anesthesia resuscitation, as well as outpatient intravenous anesthesia, is commonly applied in clinical anesthesia.

The nasopharyngeal airway used clinically at present has the following problems:

the size of the nasopharyngeal airway is fixed, the inner diameter cannot be adjusted when the nasal airway is used, the nasal mucosa is sensitive to foreign matters, the nasopharyngeal airway can be rubbed and extruded on the nasal mucosa when being placed into the nasal cavity, and serious discomfort is often caused for a patient. The ventilation effect can be influenced when the inner diameter of the nasopharyngeal airway is smaller, and nasal cavity mucosa injury of a patient is easy to cause nasal cavity bleeding when the inner diameter is larger, so that the safety of the patient is threatened.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an automatically-expandable nasopharyngeal airway. The nasopharynx airway is convenient to insert when being placed, and protects nasal mucosa; when the nasal cavity ventilation device is used, the nasal cavity can be attached to the nasal cavity to be automatically adjusted to a proper inner diameter, and ventilation effect is guaranteed to the greatest extent.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an automatically expandable nasopharyngeal airway, comprising a nasopharyngeal airway body and a fixing sleeve; the nasopharynx airway main body comprises a contractible vent pipe, and contractible supporting bead rings are uniformly distributed along the length direction of the vent pipe on the wall of the vent pipe; a breathing machine connector is arranged at the opening of the nose end of the breathing pipe, and one side of the nose end of the breathing pipe is connected with a fixing buckle; the fixed sleeve comprises a fixed sleeve main body sleeved outside the vent pipe, and a fixed buckle through groove for the fixed buckle of the vent pipe to pass through in a sliding manner is formed in one side of the fixed sleeve main body.

It is further: the pharyngeal opening of the vent pipe is an elliptical oblique opening, and one side of the pharyngeal opening of the vent pipe is provided with a side hole; the vent pipe is made of elastic plastic, is integrally arc-shaped and is attached to the physiological curvature of the nasopharynx; graduation lines are arranged on the outer pipe wall of the vent pipe.

The diameter of the main body of the fixed sleeve is larger than the diameter of the vent pipe when the vent pipe is contracted to be thinnest, and the diameter of the main body of the fixed sleeve is smaller than the diameter of the vent pipe when the vent pipe is expanded to be thickest.

The diameter of the vent tube when expanded to the thickest is twice the diameter of the vent tube when contracted to the thinnest.

The fixed sleeve body is made of plastic; the length of the fixed sleeve body is equal to that of the vent pipe, and a push-pull handle is arranged at the opening of the nose end of the fixed sleeve body; the push-pull handle is made of hard plastic.

The supporting bead ring comprises a steel wire with a conical hollow structure, the head end of the steel wire is thin, the tail end of the steel wire is thick, and the head end of the steel wire is placed into the tail end hollow structure to form an annular structure; the supporting bead ring is made of medical stainless steel.

The supporting bead ring is arranged in a C-shaped groove in the inner wall of the vent pipe or in a closed cavity in the inner wall of the vent pipe.

An automatically expandable nasopharyngeal airway, comprising a nasopharyngeal airway body; the nasopharynx airway main body comprises a contractible vent pipe, and contractible supporting bead rings are uniformly distributed along the length direction of the vent pipe on the wall of the vent pipe; a breathing machine connector is arranged at the opening of the nose end of the breathing pipe, and one side of the nose end of the breathing pipe is connected with a fixing buckle; the supporting bead ring is made of a memory alloy material.

It is further: the diameter of the supporting steel wire ring is 3-4mm at 15-30 ℃, and the diameter of the supporting steel wire ring is 6-8mm at 36-38 ℃.

The supporting bead ring comprises a steel wire with a conical hollow structure, the head end of the steel wire is thin, the tail end of the steel wire is thick, and the head end of the steel wire is placed into the tail end hollow structure to form an annular structure.

Compared with the prior art, the utility model has the following advantages:

1. the nasopharynx airway has simple structure and convenient operation, the outer layer of the fixed sleeve wraps and limits the airway, the wall of the airway is in a corrugated state, and the diameter of the airway is smaller at the moment; when in use, the combined cannula is placed, the difficulty of placing the nasal cavity into the pharynx is small, the stimulation to a patient is small, the extrusion friction of the breather pipe to the inner wall of the nasal cavity is reduced, the pain of the patient is reduced, the patient is easy to accept, and the incidence rate of complications such as nasal mucosa hemorrhage is reduced;

2. after the nasopharynx airway is placed to a proper position, the outer layer fixing sleeve is withdrawn, and the inner wall supporting bead ring of the ventilation tube can automatically attach to the nasal cavity and rebound to a proper size, so that the wrinkles of the ventilation tube are unfolded, the nasopharynx airway is expanded to the maximum ventilation inner diameter, the nasal cavity space is fully utilized, and the ventilation efficiency is improved. The supporting force of the vent pipe can be increased by the supporting bead ring, so that the vent pipe is prevented from collapsing, the upper respiratory obstruction can be effectively relieved, and the unobstructed respiratory tract is ensured;

3. the scale is arranged on the outer side of the ventilation pipeline, so that the depth of the ventilation pipe inserted into the nasal cavity can be effectively judged, and the use safety is ensured. The vent pipe body and the outer layer fixing pipe sleeve are made of plastic materials, the texture is soft, the integral design is attached to the physiological curve of the nasopharynx part, and a good protection effect is achieved on the inner part of the nasal cavity of a patient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a retaining sleeve according to the present utility model;

FIG. 3 is a schematic view of the structure of the support traveler in the natural state of the present utility model;

FIG. 4 is a schematic view showing the structure of the support bead ring of the present utility model installed in the stationary sleeve body;

in the figure: 1. a nasopharyngeal airway body; 100. a vent pipe; 101. a side hole; 102. supporting the bead ring; 103. a fixing buckle; 104. a ventilator joint; 105. scale marks; 2. fixing the sleeve; 200. a fixed sleeve body; 201. push-pull handle; 202. the fixing buckle is provided with a through groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present utility model, not all.

Example 1

Referring to fig. 1, an automatically expandable nasopharyngeal airway includes a nasopharyngeal airway body 1 and a retaining sleeve 2. The nasopharyngeal airway body 1 includes a collapsible airway tube 100 with collapsible support grommets 102 evenly distributed along the length of the airway tube 100 mounted to the wall of the airway tube 100.

Graduation marks 105 are arranged on the outer side pipe wall of the ventilation pipe 100, so that the nasopharyngeal airway implantation depth can be conveniently observed in use, and the implantation is prevented from being too deep or too shallow. A ventilator fitting 104 is mounted at the nose opening of the ventilation tube 100 and is connectable to a ventilator circuit. A fixing buckle 103 is connected to one side of the nose end of the breather pipe 100. The pharyngeal opening of the breather pipe 100 is an elliptic oblique opening, and one side of the pharyngeal opening of the breather pipe 100 is provided with a side hole 101.

The vent pipe 100 is made of elastic plastic, has strong ductility, is integrally arc-shaped, and is attached to the physiological curvature of the nasopharynx. When the vent pipe 100 is not in use, the vent pipe is compressed by the fixing sleeve 2, and the pipe wall is wrinkled. At this time, the smaller diameter of the airway tube 100 may allow the nasopharyngeal airway to reduce its squeezing friction against the nasal mucosa during placement. After removing the fixed sleeve 2, the inner diameter of the vent pipe 100 can be changed along with the change of the diameter of the supporting bead ring 102, and meanwhile, the vent pipe 100 limits the unlimited expansion of the supporting bead ring 102, so that the maximum diameter of the expanded supporting bead ring 102 is 2 times of the minimum diameter thereof.

Referring to fig. 2, the fixing sleeve 2 includes a fixing sleeve body 200 sleeved outside the ventilation pipe 100, the fixing sleeve body 200 is made of plastic, and the fixing sleeve body 200 is equal to the ventilation pipe 100 in length. A fixing buckle through groove 202 for the fixing buckle 103 of the vent pipe 100 to slide through is formed in one side of the fixing sleeve body 200, and a push-pull handle 201 is arranged at the nose opening of the fixing sleeve body 200. The push-pull handle 201 is made of hard plastic, so that the position of the fixed sleeve main body 200 can be moved by hand.

The diameter of the fixing sleeve body 200 is larger than the diameter of the vent pipe 100 when it is contracted to the thinnest, and the diameter of the fixing sleeve body 200 is smaller than the diameter of the vent pipe 100 when it is expanded to the thickest. In this embodiment, the inner diameter of the fixing sleeve body 200 is slightly larger than the minimum diameter of the ventilation pipe 100, and the fixing sleeve body 200 is used for fixedly compressing the ventilation pipe 100 around and reducing the diameter thereof.

As shown in fig. 3 and 4, the support bead ring 102 is made of medical stainless steel. The supporting bead ring 102 comprises a steel wire with a conical hollow structure, wherein the head end of the steel wire is thin and the tail end of the steel wire is thick, and the head end of the steel wire is placed into the tail end hollow structure to form an annular structure; the support bead 102 may change as a result of external force compression. The supporting bead ring 102 is installed in a C-shaped groove of the inner wall of the vent pipe 100 or in a closed cavity of the inner wall of the vent pipe 100, and cannot be shifted out. The support bead rings 102 are disposed along the inner wall of the vent tube at intervals of 2 mm.

The using method comprises the following steps:

the medical staff firstly measures the distance from the nose tip of the patient to the earhole by using the scale marks 105 to determine the implantation depth, inserts the nasopharyngeal airway along the lower nasal cavity, and stops the implantation after reaching the preset depth after the insertion action is gentle and slow;

the vent pipe position is fixed by the handheld fixed buckle 103, the fixed sleeve 2 is slowly pulled out by the other handheld push-pull handle 201 outwards, after the fixed sleeve is removed, the supporting bead ring 102 on the nasopharynx vent pipe main body automatically rebounds to a proper size for fitting the nasal cavity, the folds on the pipe wall of the vent pipe 100 are unfolded, the inner diameter of the vent pipe is expanded to the maximum vent inner diameter for fitting the physiological structure of a patient, the maximum vent efficiency is ensured, and at the moment, the position of the nasopharynx vent pipe main body 1 is fixed by the fixed buckle 103, and a breathing machine loop is connected for ventilation.

The automatically expandable nasopharynx airway of this embodiment has a smaller diameter when being placed in the nasopharynx, is soft in material, is designed to fit with a physiological curve, avoids causing pain to a patient, has a certain elasticity after the support bead ring 102 is automatically expanded, can ensure that the airway does not collapse, and ensures ventilation effect.

Example two

On the basis of the first embodiment, the second embodiment differs in that:

the support bead ring 102 is made of memory alloy. The diameter of the supporting bead ring 102 is 3-4mm at 15-30deg.C, and the diameter of the supporting bead ring 102 is 6-8mm at 36-38deg.C.

Preferably: the diameter of the supporting bead ring 102 is 4mm at the ordinary room temperature (15-30 ℃), when the temperature of the supporting bead ring 102 rises to 37 ℃ after the supporting bead ring is placed in the nasopharynx, the supporting bead ring 102 deforms to a preset size, the diameter is the same as the inner diameter of an ordinary No. 7.0 nasopharynx airway, the inner diameter of the airway 100 also expands to the preset size, and the ventilation effect is equal to that of the ordinary supporting nasopharynx airway.

In the embodiment, the nasopharyngeal airway body 1 has smaller diameter when being placed, so that the injury to a patient is smaller, and the pain of the patient is relieved. It should be noted that, in this embodiment, the nasopharyngeal airway body 1 is usable independently, and need not be used in combination with the outer layer fixing sleeve 2.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed equally within the scope of the present utility model.

Claims

1. An automatically expandable nasopharyngeal airway,

the method is characterized in that:

comprises a nasopharynx airway main body (1) and a fixed sleeve (2);

the nasopharynx airway main body (1) comprises a contractible vent pipe (100), and contractible supporting bead rings (102) which are uniformly distributed along the length direction of the vent pipe (100) are arranged on the wall of the vent pipe (100); a breathing machine joint (104) is arranged at the opening of the nose end of the breathing pipe (100), and one side of the nose end of the breathing pipe (100) is connected with a fixed buckle (103);

the fixed sleeve (2) comprises a fixed sleeve main body (200) sleeved outside the vent pipe (100), and a fixed buckle through groove (202) through which a fixed buckle (103) of the vent pipe (100) slides is formed in one side of the fixed sleeve main body (200).

2. A self-expandable nasopharyngeal airway as claimed in claim 1, wherein: the pharyngeal opening of the breather pipe (100) is an elliptical oblique opening, and one side of the pharyngeal opening of the breather pipe (100) is provided with a side hole (101); the vent pipe (100) is made of elastic plastic, is integrally arc-shaped and is attached to the physiological curvature of the nasopharynx part; graduation lines (105) are formed on the outer side pipe wall of the ventilation pipe (100).

3. A self-expandable nasopharyngeal airway as claimed in claim 1, wherein: the diameter of the fixed sleeve main body (200) is larger than the diameter of the vent pipe (100) when the vent pipe (100) is contracted to be thinnest, and the diameter of the fixed sleeve main body (200) is smaller than the diameter of the vent pipe (100) when the vent pipe (100) is expanded to be thickest.

4. A self-expanding nasopharyngeal airway as claimed in claim 3, wherein: the diameter of the vent tube (100) when expanded to the thickest is twice the diameter of the vent tube (100) when contracted to the thinnest.

5. A self-expandable nasopharyngeal airway as claimed in claim 1, wherein: the fixed sleeve main body (200) is made of plastic; the length of the fixed sleeve main body (200) is equal to that of the vent pipe (100), and a push-pull handle (201) is arranged at the opening of the nose end of the fixed sleeve main body (200); the push-pull handle (201) is made of hard plastic.

6. A self-expandable nasopharyngeal airway as claimed in claim 1, wherein: the supporting bead ring (102) comprises a steel wire with a conical hollow structure, the head end of the steel wire is thin, the tail end of the steel wire is thick, and the head end of the steel wire is placed into the tail end hollow structure to form an annular structure; the supporting steel wire ring (102) is made of medical stainless steel.

7. A self-expandable nasopharyngeal airway as claimed in claim 1, wherein: the supporting bead ring (102) is arranged in a C-shaped groove on the inner wall of the vent pipe (100) or in a closed cavity on the inner wall of the vent pipe (100).

8. An automatically expandable nasopharyngeal airway,

the method is characterized in that:

comprises a nasopharyngeal airway body (1);

the supporting bead ring (102) is made of a memory alloy material.

9. A self-expanding nasopharyngeal airway as claimed in claim 8, wherein: the diameter of the supporting steel wire ring (102) is 3-4mm at 15-30 ℃, and the diameter of the supporting steel wire ring (102) is 6-8mm at 36-38 ℃.

10. A self-expanding nasopharyngeal airway as claimed in claim 9, wherein: the supporting bead ring (102) comprises a steel wire with a conical hollow structure, the head end of the steel wire is thin, the tail end of the steel wire is thick, and the head end of the steel wire is placed into the tail end hollow structure to form an annular structure.