Bendable dual-purpose nasopharyngeal airway for sputum suction and oxygen inhalation

Abstract

The utility model belongs to the technical field of nasopharyngeal airway, and provides a bendable sputum suction and oxygen inhalation dual-purpose nasopharyngeal airway which comprises a nasopharyngeal airway outer tube, and the nasopharyngeal airway outer tube is constructed to be bent; the oxygen tube is fixedly installed on the inner wall of the nasopharyngeal ventilation outer tube, and the output end of the oxygen tube is located on the upper middle portion of the nasopharyngeal ventilation outer tube; the control structure is installed outside the nasopharynx ventilation outer tube and inside the oxygen tube, the control structure comprises a control line, and a line outlet hole and a line inlet hole are oppositely formed in the upper middle portion of the nasopharynx ventilation outer tube. The control structure can dynamically adjust the bending degree of the nasopharyngeal ventilation outer tube according to the form of a nasopharyngeal channel of a patient, is high in flexibility, can prevent the pharynx end from injuring mucous membrane tissues at the corner of the nasopharyngeal channel of the patient to cause airway bleeding injury, reduces friction and compression, reduces operation risks, and improves the operation efficiency. Meanwhile, the nasopharyngeal airway can be ensured to be more fit with the physiological structure of a patient in the insertion process, and discomfort is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to nasopharyngeal airway technical field, concretely speaking, it is a kind of bendable sputum suction oxygen dual-purpose nasopharyngeal airway. BACKGROUND

[0002] Nasopharyngeal airway is also called nasopharyngeal airway or nasopharyngeal tube, it is a kind of glottis outside airway device, mainly used to remove upper respiratory tract obstruction, keep airway unobstructed, usually made of soft material such as silicone or polyurethane foam, it is an important medical instrument, plays an important role in operation and disease treatment.

[0003] At present, the core of nasopharyngeal airway is a soft tubular structure, the front end is structured as a diagonal opening, the rear end is set as a micro-sluice, it is usually made of silicone, polyurethane foam or other soft materials suitable for medical purposes, the tubular structure has a certain length and bending degree to adapt to the anatomical structure of nasal cavity and nasopharynx, but the nasopharyngeal passage of each patient is different, so when the medical staff inserts nasopharyngeal airway into the nasopharyngeal passage of patient, the bending degree of nasopharyngeal airway cannot be controlled artificially, so the position needs to be adjusted constantly and repeatedly during placement, which increases the working intensity of medical staff;And in the process of constant adjustment, the front end of nasopharyngeal airway is easy to damage mucosa at the corner of nasopharyngeal passage, causing airway bleeding injury, and serious cases can cause blood secretions to be inhaled into respiratory tract, and the proteases in blood components can cause decomposition and damage of tracheal wall, and further cause a series of respiratory complications, secondly, when oxygen is supplied to patient, oxygen supply source is placed at the micro-sluice of nasopharyngeal airway, and oxygen needs to pass through the whole pipeline of nasopharyngeal airway to enter the respiratory tract of patient, so the oxygen utilization rate is very low, which greatly causes industrial waste and environmental pollution, reduces the actual inhaled oxygen concentration of hypoxia patient, increases the difficulty of nursing work, wastes valuable time in rescue work, and increases the possibility of cerebral ischemia and hypoxia of patient. CONTENT OF UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides a bendable sputum suction oxygen dual-purpose nasopharyngeal airway to solve the above problems.

[0005] A bendable sputum suction oxygen dual-purpose nasopharyngeal airway, comprising:

[0006] Nasopharyngeal airway outer tube, the nasopharyngeal airway outer tube is structured into a curved shape;

[0007] Oxygen pipe, which is fixedly installed on the inner wall of nasopharyngeal airway outer tube, the output end of the oxygen pipe is in the upper part of nasopharyngeal airway outer tube;

[0008] A control structure is installed outside the nasopharyngeal ventilation tube and inside the oxygen tube. The control structure includes a control line. The nasopharyngeal ventilation tube (1) has an outlet hole and an inlet hole at its top and upper 1 / 3. One end of the control line moves through the upper end of the oxygen tube, and the other end of the control line is located below the oxygen tube. One end of the control line moves out of the outlet hole and then moves into the inlet hole. One end of the control line moves through the inlet hole and then passes through the oxygen tube. One end of the control line passes through the oxygen tube and is located below the oxygen tube. Both ends of the control line are located below the oxygen tube.

[0009] Preferably, the nasopharyngeal ventilation tube includes a ventilation tube, and a micro-trumpet outlet is fixedly provided at the lower end of the ventilation tube.

[0010] Preferably, the upper end of the ventilation tube has a pharyngeal end, which is obliquely open.

[0011] Preferably, the oxygen tube includes a pipe, which is fixedly connected to the inner wall of the ventilation pipe.

[0012] Preferably, a connecting end is fixedly installed at the lower end of the pipe.

[0013] Preferably, the nasopharyngeal ventilation tube is made of soft rubber.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model, through its control structure, can dynamically adjust the curvature of the nasopharyngeal airway according to the shape of the patient's nasopharyngeal passage. This highly flexible design avoids damage to the mucosa at the pharyngeal tip, preventing airway bleeding and reducing friction and pressure, thus lowering operational risks. It also ensures the nasopharyngeal airway conforms more closely to the patient's physiological structure during insertion, reducing discomfort. Furthermore, medical staff can observe the patient's nasopharyngeal passage shape while adjusting the curvature of the airway in real time via the control structure, making insertion smoother and reducing time wasted on repeated attempts and adjustments, thus improving the efficiency of medical staff. Finally, adjusting the curvature of the nasopharyngeal airway ensures a stable fit after insertion, helping to better maintain airway patency and improve treatment outcomes.

[0016] 2. This utility model, by installing an oxygen tube on the inner wall of the ventilation tube, allows direct delivery of oxygen to the upper middle part of the ventilation tube. Compared to the traditional method of placing the oxygen source at the ventilator outlet, this reduces the oxygen transmission distance within the tube, thereby lowering resistance during delivery. This means more oxygen can reach the patient's airway faster, improving oxygen delivery efficiency. Since a suction catheter can also be inserted into the ventilation tube, this design not only ensures oxygen supply but also facilitates suctioning of the patient's lungs by medical staff, further improving the convenience of airway management. The oxygen tube serves as an oxygen supply line during inhalation, and when a suction catheter is inserted, it can also function as a carbon dioxide monitoring line during exhalation. Furthermore, by delivering oxygen to the upper middle part of the ventilation tube through the oxygen tube, it... The oxygen source is closer to the patient's airway, which helps maintain a more stable ventilation state, improves the stability and safety of the nasopharyngeal airway, and reduces the risk of hypoxia. At the same time, the traditional method of placing the oxygen source at the micro-ventilation outlet may cause some oxygen loss due to turbulence or diffusion at the micro-ventilation outlet. However, this device delivers oxygen directly to the middle and upper part of the ventilation tube through the oxygen tube, reducing this unnecessary oxygen loss. Finally, compared to the traditional method of placing the oxygen source at the micro-ventilation outlet, where oxygen mixes with exhaled carbon dioxide, creating temperature differences or airflow changes that may irritate the patient's airway, this device delivers oxygen directly to the middle and upper part of the ventilation tube through the oxygen tube, reducing the mixing of oxygen and carbon dioxide in the ventilation tube and thus reducing irritation to the patient's airway. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the nasopharyngeal ventilation tube structure of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view of a section at point B in the middle;

[0022] Figure 6 This is a partial sectional view of the present invention.

[0023] In the picture:

[0024] 1. Nasopharyngeal ventilation tube; 11. Ventilation tube; 12. Micro-flare outlet; 13. Pharyngeal end; 2. Oxygen tube; 21. Pipeline; 22. Connecting end; 3. Control structure; 31. Control line; 32. Outlet hole; 33. Inlet hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. It should be noted that the drawings are schematic and not illustrated to scale. For clarity and convenience, the relative sizes and proportions of the parts shown in the drawings have been exaggerated or reduced in size. Any size is only illustrative and not limiting.

[0026] As attached Figure 1 To be continued Figure 6 As shown:

[0027] Example 1: This utility model provides a flexible nasopharyngeal airway for both suctioning and oxygenation, including a nasopharyngeal airway tube 1, which is constructed in a curved shape and is made of soft rubber.

[0028] Oxygen tube 2 is fixedly installed on the inner wall of nasopharyngeal ventilation tube 1, and the output end of oxygen tube 2 is located in the upper part of nasopharyngeal ventilation tube 1.

[0029] The control structure 3 is installed outside the nasopharyngeal ventilation tube 1 and inside the oxygen tube 2. The control structure 3 includes a control line 31. The top end and the upper 1 / 3 of the nasopharyngeal ventilation tube 1 are respectively provided with an outlet hole 32 and an inlet hole 33. One end of the control line 31 moves through the upper end of the oxygen tube 2, and the other end of the control line 31 is located below the oxygen tube 2. One end of the control line 31 moves out of the outlet hole 32 and then moves into the inlet hole 33. One end of the control line 31 moves through the inlet hole 33 and then passes through the oxygen tube 2. After passing through the oxygen tube 2, one end of the control line 31 is located below the oxygen tube 2. Both ends of the control line 31 are located below the oxygen tube 2.

[0030] As can be seen from the above, when medical staff operate this nasopharyngeal airway, they first gently insert the pharyngeal end 13 of the nasopharyngeal airway tube 1 into one of the patient's nostrils, and then advance it forward with a steady and slow motion until it reaches the pharyngeal region. During this process, in order to precisely adjust the airway to adapt to the patient's unique nasopharyngeal passage shape, medical staff can use the control structure 3 of this nasopharyngeal airway for operation.

[0031] The installation path of the control line 31 in the control structure 3 is as follows: one free end of the control line 31 is located below the oxygen tube 2, and the other free end of the control line 31 is inserted into the lower end of the oxygen tube 2, exits from its upper end, moves out through the wire hole 32, and then moves into the wire inlet hole 33, so that part of the control line 31 is attached to the upper middle part of the curved inner side of the ventilation tube 11. The other free end of the control line 31 is inserted into the ventilation tube 11 through the wire inlet hole 33, and then passes through the oxygen tube 2 again and is placed below the oxygen tube 2. That is, both free ends of the control line 31 are below the oxygen tube 2. This layout makes the control line 31 an effective tool for adjusting the curvature of the nasopharyngeal airway.

[0032] As the nasopharyngeal airway is advanced within the patient's nasopharyngeal passage, medical staff will adjust the tension of the two free ends of the control line 31 according to the real-time morphology of the nasopharyngeal passage. This involves the medical staff manually pulling on the two free ends of the control line 31 to control the length of stretching or loosening, thus dynamically controlling the curvature of the airway 11. When the medical staff pulls the control line 31 downwards towards the oxygen tube 2, the portion of the control line 31 located on the upper-middle part of the curved inner side of the airway 11 applies an inward force, causing the airway 11 to bend and adjust the position of the pharyngeal end 13, thereby allowing the nasopharyngeal airway to better conform to the curvature of the patient's nasopharyngeal passage. Conversely, when the control line 31 is loosened, the airway 11 gradually returns to its original curved state due to the elasticity of its material. The control structure 3 can dynamically adjust the curvature of the nasopharyngeal airway 1 according to the shape of the patient's nasopharyngeal passage. It is highly flexible and can avoid damage to the mucosa at the corner of the pharyngeal passage, which could cause airway bleeding. It also reduces friction and pressure, thereby reducing operational risks. At the same time, it can ensure that the nasopharyngeal airway fits the patient's physiological structure better during insertion, reducing discomfort. Secondly, medical staff can observe the shape of the patient's nasopharyngeal passage and adjust the curvature of the nasopharyngeal airway in real time through the control structure 3. This makes the insertion process smoother, reduces the time wasted due to repeated attempts and adjustments, and improves the work efficiency of medical staff. Finally, by adjusting the curvature of the nasopharyngeal airway, it can ensure a stable fit after insertion, which helps to better maintain the patient's airway patency and improve the treatment effect.

[0033] After the nasopharyngeal airway is inserted into the patient's nasopharyngeal passage, pull one end of the control line 31 so that the other end of the control line 31 is pulled out through the oxygen tube 2, the outlet hole 32, and the inlet hole 33. This pulls the control line 31 out of the oxygen tube 2, which can prevent the control line 31 from affecting the oxygen delivery. The diameters of the outlet hole 32 and the inlet hole 33 are larger than the diameter of the control line 31, which can reduce the resistance when the control line 31 is pulled out.

[0034] Example 2: This is the second embodiment of the present invention, which includes a nasopharyngeal ventilation tube 1. The nasopharyngeal ventilation tube 1 is constructed in a curved shape and is made of soft rubber.

[0035] Oxygen tube 2 is fixedly installed on the inner wall of nasopharyngeal ventilation tube 1, and the output end of oxygen tube 2 is located in the upper middle part of nasopharyngeal ventilation tube 1.

[0036] The nasopharyngeal ventilation tube 1 includes a ventilation tube 11, with a micro-loud outlet 12 fixedly provided at the lower end of the ventilation tube 11, and a pharyngeal end 13 opened at the upper end of the ventilation tube 11, the pharyngeal end 13 being obliquely open.

[0037] The oxygen tube 2 includes a pipe 21, which is fixedly connected to the inner wall of the ventilation pipe 11, and a connecting end 22 is fixedly installed at the lower end of the pipe 21.

[0038] As described above, after the nasopharyngeal airway is inserted into the patient's nasopharyngeal passage, it is connected to an oxygen supply device (such as an oxygen cylinder or oxygen concentrator) through the connecting end 22 of the oxygen tube 2. After connection, the oxygen supply device will start releasing oxygen and delivering it through the pipe 21 of the oxygen tube 2. The oxygen is delivered through the pipe 21 to the upper middle end of the ventilation tube 11, and then through the pharyngeal end 13 of the ventilation tube 11 to deliver the oxygen to the patient's respiratory tract. A suction catheter can be inserted into the ventilation tube 11 to suction sputum from the patient's lungs and expel carbon dioxide. Without a suction catheter, the patient's exhaled carbon dioxide... Exhalation is achieved through the ventilation tube 11, ensuring unobstructed breathing for the patient. An oxygen tube 2 is installed on the inner wall of the ventilation tube 11, allowing oxygen to be directly delivered to the upper middle part of the tube. Compared to the traditional method of placing the oxygen source at the ventilator outlet 12, this reduces the oxygen's transmission distance within the tube 21, thereby lowering resistance during delivery. This means more oxygen can reach the patient's airway more quickly, improving oxygen delivery efficiency. Since a suction catheter can also be inserted into the ventilation tube 11, this design not only ensures oxygen supply but also facilitates medical care. The procedure of suctioning sputum from the patient's lungs further improves the convenience of airway management. Oxygen tube 2 serves as an oxygen supply line during inhalation, and when the suction catheter is inserted, it can also function as a carbon dioxide monitoring line during exhalation. Furthermore, oxygen is delivered to the upper middle part of the ventilation tube 11 via oxygen tube 2, bringing the oxygen closer to the patient's airway, which helps maintain a more stable ventilation state, improves the stability and safety of the nasopharyngeal airway, and reduces the risk of patient hypoxia. Meanwhile, the traditional placement of the oxygen source at the micro-ventilation outlet 12 may cause oxygen... Some oxygen is lost at the micro-ventilation outlet 12 due to turbulence or diffusion. This device delivers oxygen directly to the upper middle part of the ventilation tube 11 through the oxygen tube 2, reducing this unnecessary oxygen loss. Finally, compared to the traditional method of placing the oxygen source at the micro-ventilation outlet 12, where oxygen mixes with exhaled carbon dioxide, creating temperature differences or airflow changes that may irritate the patient's respiratory tract, this device delivers oxygen directly to the upper middle part of the ventilation tube 11 through the oxygen tube 2, reducing the mixing of oxygen and carbon dioxide in the ventilation tube 11 and thus reducing irritation to the patient's respiratory tract.

[0039] Example 3: This is the third embodiment of the present invention. Combining Examples 1 and 2, the device is applied to a real-world scenario. When a patient is unconscious or has limited breathing, a nasopharyngeal airway is needed to help keep the airway open. Traditional nasopharyngeal airways are simply hollow tubes with a curved shape, an oblique opening at the top, and a flared opening at the rear. When inserted into a patient's nasopharyngeal passage, the nasopharyngeal passage shape varies, causing obstruction and potential damage at the top. This device, with its control structure 3, can flexibly adjust the curvature of the nasopharyngeal airway according to the patient's nasopharyngeal passage shape, reducing the risk of injury. Furthermore, the device includes an oxygen tube 2 inside the nasopharyngeal passage, which improves oxygen delivery efficiency and reduces the risk of hypoxia.

[0040] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0041] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flexible nasopharyngeal airway for both suctioning and oxygen administration, characterized in that: include: Nasopharyngeal ventilation tube (1), wherein the nasopharyngeal ventilation tube (1) is configured to be curved; Oxygen tube (2) is fixedly installed on the inner wall of nasopharyngeal ventilation tube (1), and the output end of the oxygen tube (2) is located in the upper part of the nasopharyngeal ventilation tube (1); A control structure (3) is installed outside the nasopharyngeal ventilation tube (1) and inside the oxygen tube (2). The control structure (3) includes a control line (31). The nasopharyngeal ventilation tube (1) has an outlet hole (32) and an inlet hole (33) at the top and the upper 1 / 3 of the tube. One end of the control line (31) moves through the upper end of the oxygen tube (2), and the other end of the control line (31) is located below the oxygen tube (2). One end of the control line (31) moves out of the outlet hole (32) and then moves into the inlet hole (33). One end of the control line (31) moves through the inlet hole (33) and then passes through the oxygen tube (2). One end of the control line (31) passes through the oxygen tube (2) and is located below the oxygen tube (2). Both ends of the control line (31) are located below the oxygen tube (2).

2. The flexible nasopharyngeal airway for both suctioning and oxygenation as described in claim 1, characterized in that: The nasopharyngeal ventilation tube (1) includes a ventilation tube (11), and a micro-loud outlet (12) is fixedly provided at the lower end of the ventilation tube (11).

3. The flexible nasopharyngeal airway for both suctioning and oxygen administration as described in claim 2, characterized in that: The upper end of the ventilation tube (11) is provided with a pharyngeal end (13), which is obliquely open.

4. The flexible nasopharyngeal airway for both suctioning and oxygenation as described in claim 1, characterized in that: The oxygen tube (2) includes a pipe (21), which is fixedly connected to the inner wall of the ventilation tube (11).

5. The flexible nasopharyngeal airway for both suctioning and oxygenation as described in claim 4, characterized in that: A connecting end (22) is fixedly installed at the lower end of the pipe (21).

6. The flexible nasopharyngeal airway for both suctioning and oxygenation as described in claim 1, characterized in that: The nasopharyngeal ventilation tube (1) is made of soft rubber.

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