CN219878882U - Oropharynx air vent convenient for oxygen inhalation - Google Patents

Abstract

The utility model relates to the technical field of high-flow oxygen inhalation, specifically an oropharyngeal airway that facilitates oxygen inhalation, including a pharyngeal bend and a positioning assembly. The distal end of the pharyngeal bend can reach the root of the pharynx, and one side of the distal end of the pharyngeal bend is fixed for The blocking balloon for blocking the esophagus is provided with a blocking balloon inflation tube on the pharyngeal curvature, and the blocking balloon inflation tube is connected with the blocking balloon. This solution seals the esophagus by setting a sealing balloon on the pharyngeal curvature, which can effectively prevent high-flow gas from flowing into the stomach and avoid gastric bloating, aspiration of reflux material, etc.

Description

Oropharynx air vent convenient for oxygen inhalation

Technical Field

The utility model relates to the technical field of high-flow oxygen inhalation, in particular to an oropharynx airway convenient for oxygen inhalation.

Background

Depending on whether the flow of gas provided by the oxygen therapy system meets the patient's inhalation needs, the oxygen therapy system may be divided into a low flow system and a high flow system, with the use of the high flow system for oxygen therapy being referred to as high flow inhalation. The air flow provided by the high-flow oxygen therapy can completely meet the inhalation requirement of a patient, can convey air-oxygen mixed gas with the flow rate of 60-120L/min, can help the patient to discharge carbon dioxide in the body while inhaling the oxygen due to the actions of gas vibration, turbulence and the like, and is mainly applied to acute respiratory failure, sequential oxygen inhalation treatment after tube drawing, other invasive operations such as bronchoscopy and the like.

One of the current high-flow oxygen inhalation methods is nasal high-flow oxygen inhalation, which is characterized in that high-flow gas mixed by an air-oxygen mixer according to a certain proportion is delivered to a patient through a nasal obstruction catheter without sealing, and the mode has the following defects in actual application: because the flow path of the gas is nasal cavity-pharynx-larynx, once the patient gets the tongue to fall back, the throat is pressed and blocked, the airway can not be opened, and thus oxygen inhalation is interrupted.

In order to solve the above-mentioned problems, in the prior art, a way of high-flow oxygen inhalation through an oropharynx airway (also called oropharynx airway), for example, chinese patent application, an oropharynx airway (CN 112263759 a), is disclosed, and by placing the oropharynx airway into the pharynx, high-flow gas is directly fed into the patient, which can prevent the tongue from falling back, rapidly open the airway, and establish a temporary artificial airway. However, this approach still has the following problems: because the oropharynx airway is positioned at the pharynx, the lower part of the pharynx is connected with the throat and the esophagus, and the oropharynx airway can not seal the esophagus, more high-flow gas can enter the stomach through the esophagus in the oxygen inhalation process, and discomfort reactions such as flatulence, reflux aspiration and the like of patients are caused.

Disclosure of Invention

The utility model aims to provide an oropharynx airway convenient for oxygen inhalation, which aims to solve the problems that the oropharynx airway proposed in the background art cannot seal esophagus and is easy to cause high-flow gas to enter stomach and cause uncomfortable reactions such as gastrectasia and the like.

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

the utility model provides an oropharynx air vent convenient to oxygen uptake, includes the crooked and locating component of pharynx, and the crooked distal end of pharynx can reach the meeting root of pharynx, and the crooked distal end of pharynx one side is fixed with the shutoff gasbag that is used for shutoff esophagus, is provided with shutoff gasbag gas tube on the crooked pharynx, shutoff gasbag gas tube and shutoff gasbag intercommunication.

The principle and beneficial effect of this scheme are:

the root of the oropharynx is placed at the far end of the oropharynx during oxygen inhalation, the blocking air bag is positioned at the side of the esophagus, the positioning component is used for positioning the oropharynx, the blocking air bag is inflated after the insertion, the esophagus is blocked after the blocking air bag is inflated, high-flow gas is prevented from flowing into the stomach, and therefore the problem of mistaken inhalation of flatulence and reflux is solved. According to the scheme, the blocking air bag is arranged on the pharyngeal curve to block the esophagus, so that high-flow gas can be effectively prevented from flowing into the stomach, the comfort level of a patient is higher, and the oxygen inhalation effect is good.

Further, the utility model also comprises a throat, the throat can extend into the throat, the throat is communicated with the bent distal end of the throat, and the distal end of the throat is provided with a supporting piece.

The beneficial effects are that: 1. according to the scheme, the throat is additionally arranged at the far end of the bent throat, so that the bent throat is lengthened, the throat can be placed in the throat during oxygen inhalation, so that the throat passes through the esophagus, the esophagus is plugged by combining with the plugging air bag, high-flow gas can be further prevented from entering the stomach of a patient, and meanwhile, the problem of mistaken inhalation of reflux is avoided; 2. the support piece is arranged at the far end of the throat, so that the throat can be supported, the airway can be opened, the device is suitable for throat compression and stenosis, and smooth oxygen inhalation can be ensured.

Further, the support piece is a support air bag, the support air bag is communicated with a support air bag inflation tube, and the support air bag inflation tube is fixed on the pharyngeal curve.

The beneficial effects are that: the support air bag inflation tube is used for inflating the support air bag, the support air bag is used as a support piece, the throat can be supported after inflation, the volume is reduced after deflation, and the support air bag inflation tube is convenient to take and place.

Further, the supporting air bag is annular, and an exhaust hole for discharging carbon dioxide is reserved between the supporting air bag and the pharynx bending.

The beneficial effects are that: the annular air bag is adopted, so that the throat can be supported without blocking the throat, a channel for carbon dioxide to be discharged is reserved, and carbon dioxide is conveniently discharged.

Further, the positioning assembly comprises a dental pad and a flange, wherein the dental pad is communicated with the proximal end of the pharyngeal curve, and the flange is fixed at the proximal end of the dental pad.

The beneficial effects are that: the dental pad is used for being occluded by teeth of a patient, the flange is used for being left outside the oral cavity of the patient to limit the insertion depth of pharyngeal bending, and the pharyngeal bending can be effectively positioned through the functions of the dental pad and the flange.

Further, the locating component also comprises hanging lugs which are fixed on two sides of the flange.

The beneficial effects are that: the hangers are used for being hung on the ears of a patient, are connected with the ears of the patient through the hangers on two sides, can further fix the pharynx to bend, avoid the left and right movement of the hangers, and have better fixing effect.

Further, the tooth cushion block is strip-shaped.

The beneficial effects are that: the strip-shaped tooth cushion block can increase the contact area between the tooth cushion block and teeth, so that the fixing effect is improved, meanwhile, the tooth stress can be dispersed, and the comfort level of a patient is improved.

Further, the flanges are arc-shaped and the arc center is curved toward the pharynx.

The beneficial effects are that: the curved flange can be more fitted to the lip, thereby improving its stability.

Further, the dental pad, the flange, the pharyngeal curvature and the throat are integrally formed.

The beneficial effects are that: the tooth cushion block, the flange, the pharyngeal bending and the venturi tube are convenient to integrally mold and process, the connecting working procedures of all parts, the polishing working procedures of the connecting parts and the like are omitted, meanwhile, the connecting parts are prevented from wearing the oral cavity, the pharynx and the larynx of a patient, and the safety and the comfort are higher.

Further, the blocking air sac inflation tube and the supporting air sac inflation tube are arranged in the curved inner wall of the pharynx.

The beneficial effects are that: the plugging air bag inflation tube and the supporting air bag inflation tube are hidden, so that the appearance is higher, the volume and the abrupt sense can be reduced, the throat can be conveniently placed, and the abrasion to the oral cavity, the throat and the throat is reduced.

Drawings

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

FIG. 2 is a schematic view of an embodiment of the present utility model when in use, and the hanging lugs are not shown in the figure;

fig. 3 is a schematic view of the second embodiment of the present utility model when in use, and the hanging lugs are not shown in the figure;

fig. 4 is a schematic view of a fourth embodiment of the present utility model when in use, and the hanging lugs are not shown in the figure.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: flange 1, hanging lugs 11, tooth pad 12, pharynx curve 2, blocking balloon 21, blocking balloon inflation tube 22, pharynx 3, larynx 31, esophagus 32, trachea 33, larynx 4, exhaust hole 41, support balloon 42.

Embodiment one:

as shown in fig. 1 and 2, an oropharyngeal airway for facilitating oxygen inhalation comprises a pharyngeal curve 2 and a positioning assembly, wherein the length (outside the mouth) of the pharyngeal curve 2 approximately corresponds to the length from the incisors to the mandibular angle, i.e. the distal end of the pharyngeal curve 2 (the end extending into the patient's body, i.e. the right end in fig. 2) can reach the root of the oropharynx, and the curvature of the pharyngeal curve 2 adapts to the curvature of the mouth, tongue and back of the pharynx. The outer side of the far end of the pharyngeal bend 2 is fixedly connected with a blocking air sac 21 for blocking the esophagus 32 in a gluing way, the inner wall of the pharyngeal bend 2 is integrally formed with a blocking air sac inflation tube 22, the blocking air sac 21 is fixedly connected with a connecting tube (not shown in the figure) in a gluing way, and the connecting tube is communicated with the blocking air sac inflation tube 22.

The positioning assembly comprises a strip-shaped tooth cushion block 12 and flanges 1, wherein the tooth cushion block 12 is integrally formed at the near end of the pharyngeal curve 2 and is communicated with the pharyngeal curve 2, the flanges 1 are integrally formed at the near end of the tooth cushion block 12, and hanging lugs 11 are fixedly glued on two sides of the flanges 1.

The specific implementation process is as follows:

step 1: after patient anesthesia, an appropriate length of oropharyngeal airway is selected (the oropharyngeal airway is placed over the patient's cheek to align with a length approximately corresponding to the length from the incisors to the mandibular angle).

Step 2: as shown in fig. 2, the oral cavity of the patient is opened, the oropharynx airway is placed in the oral cavity, the flanges 1 protrude from the incisors by 1-2cm, the lower jaw is supported by both hands, the tongue is separated from the back pharyngeal wall, and the oropharynx airway is pushed downwards by at least 2cm, so that the distal end of the pharynx curve 2 is positioned at the root of the oropharynx, and the lower jaw is relaxed. At this time, the dental pad 12 is positioned between the upper and lower incisors of the patient, the upper and lower incisors of the patient are utilized to bite the dental pad 12, meanwhile, the flange 1 is left outside the oral cavity to limit the insertion depth, and the two hangers 11 are respectively hung on the ears of the patient, so that the oropharynx airway is positioned.

Step 3: after the pharynx is bent 2 in place, the blocking balloon 21 is positioned at the side of the esophagus 32, and an external inflation device (such as an air pump) is used for inflating the blocking balloon 21 through the blocking balloon inflation tube 22, so that the esophagus 32 is blocked after the blocking balloon 21 is inflated.

Step 4: the dental pad 12 is externally connected with a high-flow oxygen inhalation breathing machine and is used for delivering high-flow air-oxygen mixed gas to a patient.

The oropharynx airway is provided with the blocking air bag 21 at the far end of the pharynx curve 2, the blocking air bag 21 is inflated after being placed, the esophagus 32 is blocked by the blocking air bag 21, and the situations of flatulence, reflux aspiration and the like caused by high-flow gas entering the stomach through the esophagus 32 can be effectively avoided.

Example two

The difference between this embodiment and the first embodiment is that, as shown in fig. 3, the distal end of the pharyngeal bend 2 is integrally formed with a throat 4, the throat 4 is communicated with the pharyngeal bend 2, the throat 4 can extend into the throat 31, the distal end of the throat 4 is fixedly bonded with a support member, the support member adopts an annular support air bag 42, the support air bag 42 is communicated with a support air bag inflation tube (not shown in the figure), the support air bag inflation tube is integrally formed in the inner wall of the pharyngeal bend 2 and extends into the throat 4 to be communicated with the support air bag 42, and an exhaust hole 41 for discharging carbon dioxide is reserved between the support air bag 42 and the throat 4.

When the embodiment is used, the venturi tube 4 is directly placed in the throat 31, the blocking air bag 21 is still positioned at the esophagus 32 side at the root of the throat, the supporting air bag 42 is positioned in the throat 31, the blocking air bag 21 and the supporting air bag 42 are inflated respectively, the esophagus 32 is blocked after the blocking air bag 21 is inflated, and the situation that high-flow gas enters the stomach or reflux is inhaled by mistake is avoided. The support airbag 42 supports the throat 31 after expanding, keeps the throat 31 smooth, can solve the problems of compression and stenosis of the throat 31, and simultaneously, carbon dioxide can be discharged through the exhaust hole 41 between the support airbag 42 and the throat 4 without affecting the discharge of the carbon dioxide.

Example III

The difference between this embodiment and the first embodiment is that the flange 1 is arc-shaped and the arc center is bent 2 (not shown in the figure) towards the pharynx, and setting the flange 1 to be arc-shaped can make the flange 1 better fit the lips of the patient, so that the fixation stability is better.

Example IV

As shown in fig. 4, the difference between the present embodiment and the second embodiment is that the throat 4 is a bellows with a hollow inner wall, the proximal end of the throat 4 is fixedly glued to the distal end of the pharyngeal bend 2, and a throat inflation tube (not shown in the figure) for inflating the throat 4 is integrally formed in the pharyngeal bend 2. When not in use, the throat 4 is in a contracted state, namely the state shown in fig. 4, and when the throat 31 is required to be supported, the throat 2 is bent and placed into the root of the throat, so that the throat 4 is positioned at the proximal end of the throat 31, and the throat 4 is inflated through the throat inflation tube, so that the throat 4 is expanded and stretched into the throat 31, the expanded throat 4 can support the throat 31, and the problems of compression and stenosis of the throat 31 are solved.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (10)

1. An oropharynx air vent convenient to oxygen uptake, which is characterized in that: the device comprises a pharynx bending and positioning assembly, wherein the pharynx bending distal end can reach the root of a meeting pharynx, one side of the pharynx bending distal end is fixed with a blocking air bag for blocking esophagus, and a blocking air bag inflation tube is arranged on the pharynx bending and communicated with the blocking air bag.

2. The oropharyngeal airway for facilitating oxygen inhalation of claim 1 wherein: still include the choke, the choke can stretch into in the choke, choke and the crooked distal end intercommunication of pharynx, choke distal end is provided with support piece.

3. An oropharyngeal airway for facilitating oxygen inhalation according to claim 2 wherein: the support piece is a support air bag, the support air bag is communicated with a support air bag inflation tube, and the support air bag inflation tube is fixed on the pharyngeal curve.

4. An oropharyngeal airway for facilitating oxygen inhalation according to claim 3 wherein: the supporting air bag is annular, and an exhaust hole for discharging carbon dioxide is reserved between the supporting air bag and the pharynx bending.

5. An oropharyngeal airway for facilitating oxygen inhalation according to any one of claims 1 to 4 wherein: the positioning component comprises a tooth cushion block and a flange, wherein the tooth cushion block is communicated with the proximal end of the pharynx bending, and the flange is fixed at the proximal end of the tooth cushion block.

6. The oropharyngeal airway for facilitating oxygen inhalation of claim 5 wherein: the positioning component also comprises hanging lugs which are fixed on two sides of the flange.

7. The oropharyngeal airway for facilitating oxygen inhalation of claim 6 wherein: the tooth cushion block is strip-shaped.

8. The oropharyngeal airway for facilitating oxygen inhalation of claim 7 wherein: the flange is arc-shaped and the arc center is bent towards the pharynx.

9. The oropharyngeal airway for facilitating oxygen inhalation of claim 8 wherein: the dental pad, the flange, the pharyngeal curve and the larynx are integrally formed.

10. The oropharyngeal airway for facilitating oxygen inhalation of claim 9 wherein: the blocking air sac inflation tube and the supporting air sac inflation tube are arranged in the curved inner wall of the pharynx.