Inflation extension type oropharyngeal airway

Abstract

The utility model relates to the technical field of throat ventilation medical treatment, in particular to an inflation extension type oropharynx airway which comprises an oropharynx ventilation part and a telescopic inflation extension part connected with the tail end of the oropharynx ventilation part, the inflation extension part is connected with an inflation catheter, and the inflation catheter is placed along the pipeline wall of the oropharynx ventilation part. The inflatable extension type oropharyngeal airway is used in cooperation with an existing fiber bronchoscope through the inflatable extension piece, the glottis direction of a patient can be accurately found, and the definite operation guiding effect on auxiliary ventilation, auxiliary medicine injection and suction of secretions around the glottis is achieved; the technical problem that secretions around the glottis and in the trachea cannot be effectively removed through an existing oropharyngeal airway is solved.

Description

Technical Field

[0001] The present application relates to the field of pharyngeal ventilation medical technology, and in particular to an inflatable and extended oropharyngeal airway. Background Art

[0002] The oropharyngeal airway, also known as the oropharyngeal airway, is a non-tracheal catheter non-invasive ventilation tube that can prevent the tongue from falling back, quickly open the airway, and establish a temporary artificial airway. The oropharyngeal airway is usually made of rubber or plastic, and can also be made of metal or other elastic materials. The oropharyngeal airway commonly used in clinical practice is an elliptical hollow plastic tube with an "S" shape. The structure of the oropharyngeal airway includes the wing edge, the tooth pad part, and the pharyngeal curvature part. The existing oropharyngeal airways are divided into many models, and the selection is determined by the length from the incisor to the mandibular angle.

[0003] Since the structure of the existing oropharyngeal airway is fixed, the insertion depth of the oropharyngeal airway cannot be adjusted, and the insertion depth of the end of the pharyngeal bend in the oropharyngeal airway is basically controlled in the pharynx 3-5 cm outside the glottis. If a larger oropharyngeal airway is selected in order to open closer to the glottis, the possibility of soft tissue damage inside the oral cavity will increase. At the same time, since the structure of the existing oropharyngeal airway is fixed, it is impossible to change the direction of the oropharyngeal airway opening so that it is facing the glottis instead of the esophagus.

[0004] Therefore, the existing oropharyngeal airway has the following disadvantages during use: first, it is impossible to complete surface anesthesia of the larynx and glottis; second, during the sputum suction operation, the catheter may extend into the esophagus after passing through the oxygen supply channel in the oropharyngeal airway, thereby failing to effectively clear the secretions around the glottis and in the trachea. Utility Model Content

[0005] The embodiment of the present application provides an inflatable and extended oropharyngeal airway, which is used to solve the technical problem that the existing oropharyngeal airway cannot effectively clear the secretions around the glottis and in the trachea.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] On the one hand, an inflatable and extendable oropharyngeal airway is provided, comprising an oropharyngeal vent and a retractable inflatable extender connected to the end of the oropharyngeal vent, wherein the inflatable extender is connected to an inflation catheter, and the inflation catheter is placed along the channel wall of the oropharyngeal vent.

[0008] Preferably, the inflatable extension piece is a retractable inflatable component made of soft plastic with a threaded tube and in an accordion shape and a hollow tube.

[0009] Preferably, the oropharyngeal vent comprises an integrally formed flange, tooth engagement region and pharyngeal flexure region.

[0010] Preferably, a pipe for accommodating the inflation tube is opened in the lower pipe wall or the upper pipe wall of the tooth occlusal area and the pharyngeal flexure area.

[0011] Preferably, one end of the inflation tube is placed along the pipelines of the tooth occlusal area and the pharyngeal bending area and then connected with the inflation extension piece; the other end of the inflation tube is exposed outside the oropharyngeal vent.

[0012] Preferably, the pharyngeal flexure region is arc-shaped.

[0013] Preferably, the oropharyngeal vent is made of hard plastic.

[0014] Preferably, an inflation cuff is provided on the inflation catheter exposed outside the oropharyngeal vent.

[0015] Preferably, a switch element for preventing gas from overflowing is provided on the inflatable cuff.

[0016] Preferably, the switching element is a check valve.

[0017] It can be seen from the above technical scheme that the embodiment of the present application has the following advantages: the inflatable extended oropharyngeal airway includes an oropharyngeal vent and a retractable inflatable extension connected to the end of the oropharyngeal vent, the inflatable extension is connected to an inflation catheter, and the inflation catheter is placed along the pipe wall of the oropharyngeal vent. The inflatable extended oropharyngeal airway can accurately find the direction of the patient's glottis by using the inflatable extension in conjunction with an existing fiber bronchoscope, and has a definite operational guidance function for auxiliary ventilation, auxiliary drug injection, and suction of secretions around the glottis, solving the technical problem that the existing oropharyngeal airway cannot effectively clear secretions around the glottis and in the trachea. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the structure of the inflatable and extended oropharyngeal airway described in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0024] In order to make the opening of the oropharyngeal airway closer to the glottis without changing its model, and to guide the bronchoscope, medication catheter and suction tube to the glottis, so as to complete the surface anesthesia of the larynx and glottis and effectively clear the secretions around the glottis and in the trachea; at the same time, reduce the damage of the oropharyngeal airway to the soft tissue of the throat, the embodiment of the present application provides an inflatable extended oropharyngeal airway, which is used to solve the technical problem that the existing oropharyngeal airway cannot effectively clear the secretions around the glottis and in the trachea.

[0025] Embodiment 1:

[0026] Figure 1This is a schematic diagram of the structure of the inflatable and extended oropharyngeal airway described in an embodiment of the present application.

[0027] like Figure 1 As shown, an embodiment of the present application provides an inflatable and extendable oropharyngeal airway, including an oropharyngeal ventilator 10 and a retractable inflatable extension 20 connected to the end of the oropharyngeal ventilator 10, wherein the inflatable extension 20 is connected to an inflation catheter 30, and the inflation catheter 30 is placed along the pipe wall of the oropharyngeal ventilator 10.

[0028] It should be noted that the inflatable extension piece 20 can be a retractable inflatable part made of soft plastic with a threaded tube and in an accordion shape and a hollow tube. The oropharyngeal ventilator 10 and the inflatable extension piece 20 are both hollow tubes. Figure 1 As shown, because the inflatable extension piece 20 has a certain degree of flexibility, the inflatable extended oropharyngeal airway is used in conjunction with a fiber bronchoscope. Before the inflatable extension piece 20 is inflated and extended through the inflatable catheter 30, a fiber bronchoscope can be placed in the pipeline of the oropharyngeal airway 10 for visual guidance. After the patient's glottis position is determined, the inflatable extension piece 20 is inflated and extended to ensure that the inflatable extension piece 20 is extended toward the patient's glottis, so as to facilitate subsequent drug injections and secretion suction operations. Under the guidance of the fiber bronchoscope, the extended length of the inflatable extension piece 20 after inflation can be determined, ensuring that it is close to the patient's glottis while avoiding stimulating the patient's vocal cords to cause choking and vocal cord edema and other injuries.

[0029] In the embodiment of the present application, whether the inflatable extension 20 of the inflatable extendable oropharyngeal airway is in an uninflated state or an inflated state, the outer diameter and inner diameter of the pipe of the inflatable extension 20 are always consistent with the oropharyngeal vent 10, and the overall inner diameter of the inflatable extendable oropharyngeal airway is not reduced.

[0030] It should be noted that the inflatable extended oropharyngeal airway is used in conjunction with an existing fiber bronchoscope through the inflatable extension 20, which can accurately find the direction of the patient's glottis and provide definite operational guidance for assisted ventilation, assisted drug injection and aspiration of secretions around the glottis.

[0031] The present application provides an inflatable extended oropharyngeal airway, comprising an oropharyngeal ventilator and a retractable inflatable extension connected to the end of the oropharyngeal ventilator, the inflatable extension connected to an inflatable catheter, and the inflatable catheter is placed along the pipe wall of the oropharyngeal ventilator. The inflatable extended oropharyngeal airway can accurately find the direction of the patient's glottis by using the inflatable extension in conjunction with an existing fiber bronchoscope, and has a definite operational guidance function for auxiliary ventilation, auxiliary drug injection, and suction of secretions around the glottis, solving the technical problem that the existing oropharyngeal airway cannot effectively clear secretions around the glottis and in the trachea.

[0032] like Figure 1 As shown, in one embodiment of the present application, the oropharyngeal vent 10 includes an integrally formed flange 11 , a tooth engagement region 12 , and a pharyngeal flexure region 13 .

[0033] It should be noted that, because the oropharyngeal vent 10 is required to be hard and does not need to be flexible, the oropharyngeal vent 10 is made of hard plastic. In this embodiment, the flange 11 is protruded from both sides of the tooth bite area 12 pipe, the tooth bite area 12 is a straight tubular pipe, and the shape of the pharyngeal bending area 13 is an arc shape.

[0034] like Figure 1 As shown, in one embodiment of the present application, a channel for accommodating the inflation tube 30 is opened in the lower channel wall or the upper channel wall of the tooth occlusal area 12 and the pharyngeal flexure area 13.

[0035] It should be noted that the inflation catheter 30 can be directly set in the pipeline starting from the lower pipeline wall or the upper pipeline wall of the tooth occlusal area 12 and the pharyngeal flexion area 13, and the inflation catheter 30 is connected with the inflation extension piece 20 to facilitate the inflation of the inflation extension piece 20.

[0036] In one embodiment of the present application, one end of the inflation tube 30 is placed along the pipeline in the tooth occlusal area 12 and the pharyngeal flexion area 13 and then connected to the inflation extension piece 20; the other end of the inflation tube 30 is exposed outside the oropharyngeal vent 10.

[0037] like Figure 1 As shown, in one embodiment of the present application, an inflation cuff 31 is provided on the inflation catheter 30 exposed outside the oropharyngeal ventilator 10 , and a switch element 32 for preventing gas overflow is provided on the inflation cuff 31 .

[0038] It should be noted that the switch element 32 can be a check valve. In this embodiment, during the operation of the inflatable extended oropharyngeal airway, when the inflatable extension 20 is inflated, air is injected into the inflatable extension 20 at the front end of the oropharyngeal ventilator 10 through the inflatable cuff 31, stretching the inflatable extension 20; at the same time, the switch element 32 controls the air in the accordion-shaped inflatable extension 20 so that it does not overflow, and keeps the inflatable extension 20 in an extended state, sufficiently close to the glottis of the patient. When the inflatable extended oropharyngeal airway stops working, the air in the inflatable extension 20 is extracted through the inflatable cuff 31, and the inflatable extension 20 can be shortened and restored to a compressed state.

[0039] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0040] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0041] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0042] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0043] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An inflatable extended oropharyngeal airway, characterized in that: The invention comprises an oropharyngeal ventilator and a retractable inflatable extension piece connected to the end of the oropharyngeal ventilator. The inflatable extension piece is connected to an inflatable conduit, and the inflatable conduit is placed along the conduit wall of the oropharyngeal ventilator.

2. The inflatable and extended oropharyngeal airway according to claim 1, characterized in that: The inflatable extension piece is a retractable inflatable part made of soft plastic with a threaded tube and in an accordion shape and a hollow tube.

3. The inflatable and extended oropharyngeal airway according to claim 1, characterized in that: The oropharyngeal vent includes an integrally formed flange, tooth engagement region, and pharyngeal flexure region.

4. The inflatable and extended oropharyngeal airway according to claim 3, characterized in that: A pipe for accommodating the inflation catheter is provided in the lower pipe wall or the upper pipe wall of the tooth occlusal region and the pharyngeal flexure region.

5. The inflatable and extended oropharyngeal airway according to claim 3, characterized in that: One end of the inflation tube is placed along the pipelines of the tooth occlusal area and the pharyngeal bending area and then connected with the inflation extension piece; the other end of the inflation tube is exposed outside the oropharyngeal ventilation piece.

6. The inflatable and extended oropharyngeal airway according to claim 3, characterized in that: The pharyngeal flexure region is arc-shaped.

7. The inflatable and extendable oropharyngeal airway according to claim 1, characterized in that: The oropharyngeal vent is made of hard plastic.

8. The inflatable and extendable oropharyngeal airway according to claim 1, characterized in that: An inflation cuff is arranged on the inflation catheter exposed outside the oropharyngeal ventilator.

9. The inflatable and extendable oropharyngeal airway according to claim 8, characterized in that: The inflatable cuff is provided with a switch element for preventing gas from overflowing.

10. The inflatable and extendable oropharyngeal airway according to claim 9, characterized in that: The switching element is a check valve.

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