Nasopharyngeal airway

Abstract

The utility model relates to airway auxiliary device technical field especially, it relates to a nasopharyngeal airway, including fixed ring, ventilation main pipe, baffle, first air vent, second air vent and third air vent, the first air vent, second air vent and third air vent located above second air vent of this design, this design has increased the path of ventilation, thereby reduced the risk of ventilation not smooth because single air vent is blocked, when the air vent is blocked because of secretion, blood or other material, other air vents can still keep ventilation, ensure the continuity and stability of ventilation, and the fixed ring and ventilation main pipe are the sliding connection between, this means that ventilation main pipe can slide in the fixed ring, thereby adjusting its length of protruding into nasopharynx, this design allows the doctor to adjust the position of ventilation main pipe according to the nasopharynx structure of patient, to ensure the best ventilation effect and patient's comfort.

Description

Technical Field

[0001] This utility model relates to the field of airway assist device technology, and in particular to a nasopharyngeal airway. Background Technology

[0002] An airway assist device is a medical device used to help maintain or improve the patency of a patient's airway, primarily to prevent the tongue from moving backward and obstructing the airway. Inserted into the patient's mouth and placed between the base of the tongue and the posterior pharyngeal wall, it supports the tongue and keeps the airway open. Typically made of plastic or rubber, it resembles an oral airway in shape but incorporates additional features and designs to provide a better user experience and effectiveness.

[0003] Existing patent CN209004954U discloses a nasopharyngeal airway, which is an arc-shaped cylindrical structure extending along its length, including a funnel-shaped opening, a fixed wing, and a main ventilation tube. The main ventilation tube has an incision. This prior art facilitates the insertion of an endotracheal tube by making an incision in the nasopharyngeal airway and cutting open the unincised portion of the airway during surgery. This prior art also adds an auxiliary airway to the nasopharyngeal airway to assist the patient's breathing in case of respiratory distress during surgery.

[0004] However, in the aforementioned prior art, when the ventilation tube is inserted into the nasopharynx, blockage is likely to occur because the ventilation tube has only one hole. Furthermore, the fixed wing and the ventilation tube are fixed structures, which means that the ventilation tube cannot be adjusted according to the nasopharyngeal structure of different patients. Consequently, the insertion length of the ventilation tube may cause discomfort to the patient. Utility Model Content

[0005] The purpose of this invention is to provide a nasopharyngeal airway, which aims to solve the technical problems in the prior art where, when the airway tube is inserted into the nasopharynx, blockage is likely to occur because the airway tube has only one hole. Furthermore, the fixed structure of the fixing wing and the airway tube means that the airway tube cannot be adjusted according to the nasopharyngeal structure of different patients, which in turn causes discomfort to the patient due to the length of the airway tube insertion.

[0006] To achieve the above objectives, this utility model employs a nasopharyngeal airway, comprising a fixing ring and a main airway. The inner side of the fixing ring is provided with a baffle. One end of the main airway has a first airway opening, the other end of the main airway has a second airway opening, and the outer side of the main airway has a third airway opening, which is located above the second airway opening. The fixing ring is slidably connected to the main airway and is sleeved on the main airway. The baffle abuts against the main airway and is located on the outer side of the main airway.

[0007] The ventilation main pipe is generally arranged in an arc shape, with one end of the ventilation main pipe being the exposed end and the other end being the inserted end.

[0008] The nasopharyngeal airway also includes multiple fixing members, which are respectively fixedly connected to the fixing ring and arranged in a cross-shaped symmetrical manner on the end face of the fixing ring. The multiple fixing members also abut against the main ventilation tube and are located on the outside of the main ventilation tube.

[0009] The fixing component includes a stop bar, a fixing cylinder, and a fixing block. One end of the stop bar has a rounded head, and the other end of the stop bar is provided with a limiting ring. The fixing cylinder has a movable cavity, and a spring is provided in the movable cavity. The stop bar is slidably connected to the fixing cylinder and is located in the movable cavity. The limiting ring is located in the movable cavity and abuts against the spring. The fixing cylinder is fixedly connected to the fixing block and is located on the fixing block. The fixing block is fixedly connected to the fixing ring and is located on the end face of the fixing ring. The rounded end of the stop bar abuts against the outside of the main ventilation pipe.

[0010] This utility model discloses a nasopharyngeal airway, including a fixing ring and a main airway. The fixing ring has a baffle on its inner side. One end of the main airway has a first airway port, the other end has a second airway port, and the outer side of the main airway port has a third airway port, which is located above the second airway port. This design, with its first airway port, second airway port, and third airway port located above the second airway port, increases the airway path, thereby reducing the risk of airway obstruction due to blockage of a single airway port. When one airway port is blocked by secretions, blood, or other substances, the other airway ports can still maintain ventilation. This design ensures the continuity and stability of ventilation. The fixed ring and the ventilation tube are slidably connected, meaning the ventilation tube can slide within the fixed ring, adjusting its insertion length into the nasopharynx. This design allows doctors to flexibly adjust the position of the ventilation tube according to the patient's nasopharyngeal structure, ensuring optimal ventilation and patient comfort. This solves the technical problems of easy blockage when the ventilation tube is inserted into the nasopharynx due to having only one opening, and the fixed structure of the fixed wing and ventilation tube preventing adjustment based on different patients' nasopharyngeal structures, thus causing discomfort to the patient due to the insertion length of the ventilation tube. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional view of the present invention.

[0013] Figure 2 This is the front view of this utility model.

[0014] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.

[0015] Figure 4 This is the utility model Figure 3 A magnified view of a section at point B in the middle.

[0016] Figure 5 This is a schematic diagram of the structure of the fixing ring in this utility model.

[0017] 1-Fixing ring, 2-Block, 3-First vent, 4-Second vent, 5-Third vent, 6-Block, 7-Fixing cylinder, 8-Fixing block, 9-Round head, 10-Limiting ring, 11-Moving cavity, 12-Spring, 13-Main vent pipe. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1-5This utility model provides a nasopharyngeal airway, including a fixing ring 1 and an airway main tube 13. A baffle 2 is provided on the inner side of the fixing ring 1. One end of the airway main tube 13 has a first airway 3, and the other end has a second airway 4. A third airway 5 is provided on the outer side of the airway main tube 13, and the third airway 5 is located above the second airway 4. The fixing ring 1 is slidably connected to the airway main tube 13 and is sleeved on the airway main tube 13. The baffle 2 abuts against the airway main tube 13 and is located on the outer side of the airway main tube 13. The first airway 13 is provided on the airway main tube 13. 3. The second ventilation port 4 and the third ventilation port 5 located above the second ventilation port 4, this multi-ventilation port design can effectively reduce ventilation problems caused by blockage of a single ventilation port, and improve the reliability and stability of ventilation; the sliding connection design between the fixing ring 1 and the ventilation tube 13 allows the ventilation tube 13 to be flexibly adjusted within the fixing ring 1, thereby adapting to the nasopharyngeal structure of different patients and ensuring the best ventilation effect; the baffle 2 on the inner side of the fixing ring 1 can abut against the ventilation tube 13, providing additional support and stability, and preventing the ventilation tube 13 from sliding or shifting during insertion.

[0020] The number of the four baffles 2 is four, and the four baffles 2 are arranged in a ring shape on the inner side of the fixed ring 1. By the four baffles 2 being evenly arranged in a ring shape on the inner side of the fixed ring 1, this design can ensure the stability of the ventilation main pipe 13 within the fixed ring 1 and prevent it from deforming or being damaged due to uneven force.

[0021] Secondly, the ventilation tube 13 has an overall arc-shaped structure, with one end of the ventilation tube 13 being the exposed end and the other end being the inserted end. The overall arc-shaped structure of the ventilation tube 13 better adapts to the physiological structure of the nasopharynx, reducing resistance and discomfort during insertion. The clear distinction between the exposed end and the inserted end allows doctors to quickly identify and operate correctly during use.

[0022] Furthermore, the nasopharyngeal airway also includes multiple fixing members, which are respectively fixedly connected to the fixing ring 1 and arranged in a cross-shaped symmetrical manner on the end face of the fixing ring 1. The multiple fixing members also abut against the ventilation main tube 13 and are located on the outside of the ventilation main tube 13. This design can ensure the stability of the ventilation main tube 13 in multiple directions and prevent it from shifting or falling off due to external forces.

[0023] Additionally, the fixing component includes a stop rod 6, a fixing cylinder 7, and a fixing block 8. One end of the stop rod 6 has a round head 9, and the other end of the stop rod 6 is provided with a limiting ring 10. The fixing cylinder 7 has a movable cavity 11, and a spring 12 is provided in the movable cavity 11. The stop rod 6 is slidably connected to the fixing cylinder 7 and is located within the movable cavity 11, and the limiting ring 10 is located within the movable cavity 11 and abuts against the spring 12. The fixing cylinder 7 is fixedly connected to the fixing block 8 and is located on the fixing block 8. The fixing block 8 is fixedly connected to the fixing ring 1 and is located on the end face of the fixing ring 1, and the round head 9 of the stop rod 6... The airway tube 13 is abutted against the outside of the main ventilation tube 13. It is slidably connected to the fixing cylinder 7 through the stop bar 6 in the fixing member and is provided with elastic force by the spring 12. This design allows the main ventilation tube 13 to have a certain range of motion within the fixing ring 1 while maintaining its stability. When the main ventilation tube 13 is subjected to external force, the stop bar 6 can automatically adjust its position under the action of the spring 12 to ensure that the main ventilation tube 13 always remains in the correct position. The rounded head 9 of the stop bar 6 reduces friction and damage when it abuts against the main ventilation tube 13, and also facilitates the installation and removal of the nasopharyngeal airway.

[0024] When using this invention, the airway main tube 13 of the nasopharyngeal airway is slowly inserted into the nostril until it reaches the appropriate position. Since the airway main tube 13 is slidably connected to the fixing ring 1, the insertion depth of the airway main tube 13 can be flexibly adjusted according to the patient's nasopharyngeal structure. Simultaneously, during the movement of the fixing ring 1, the stop bar 6 extends and retracts under the action of the spring 12. After adjustment, the fixing ring 1 contacts the tip of the nose, thus preventing the airway main tube 13 from falling off. The stop bar 2 provides initial fixation. The stop lever 6 will be finally fixed under the compression of the spring 12. Finally, under the action of the second airway 4 and the third airway 5, the problem of poor ventilation caused by blockage of a single airway can be effectively reduced, and the reliability and stability of ventilation can be improved. In this way, the technical problem of easy blockage when the ventilation tube 13 is inserted into the nasopharynx is solved because the ventilation tube 13 has only one hole. In addition, the fixed structure between the fixing wing and the ventilation tube 13 makes it impossible to adjust the ventilation tube 13 according to the nasopharyngeal structure of different patients, which makes the insertion length of the ventilation tube 13 easy to make patients feel uncomfortable.

[0025] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A nasopharyngeal airway, characterized in that, The device includes a retaining ring and a main ventilation pipe. The retaining ring has a baffle on its inner side. One end of the main ventilation pipe has a first ventilation port, and the other end of the main ventilation pipe has a second ventilation port. The main ventilation pipe has a third ventilation port on its outer side, and the third ventilation port is located above the second ventilation port. The retaining ring is slidably connected to the main ventilation pipe and is sleeved on the main ventilation pipe. The baffle abuts against the main ventilation pipe and is located on the outer side of the main ventilation pipe.

2. The nasopharyngeal airway as described in claim 1, characterized in that, The number of the four blocks is four, and the four blocks are arranged in a ring shape on the inner side of the fixed ring.

3. The nasopharyngeal airway as described in claim 2, characterized in that, The ventilation main pipe is generally arranged in an arc shape, with one end of the ventilation main pipe being the exposed end and the other end being the inserted end.

4. The nasopharyngeal airway as described in claim 3, characterized in that, The nasopharyngeal airway also includes multiple fixing members, which are respectively fixedly connected to the fixing ring and arranged in a cross-shaped symmetrical manner on the end face of the fixing ring. The multiple fixing members also abut against the main ventilation tube and are located on the outside of the main ventilation tube.

5. The nasopharyngeal airway as described in claim 4, characterized in that, The fixing component includes a stop bar, a fixing cylinder, and a fixing block. One end of the stop bar has a rounded head, and the other end of the stop bar is provided with a limiting ring. The fixing cylinder has a movable cavity, and a spring is provided in the movable cavity. The stop bar is slidably connected to the fixing cylinder and is located in the movable cavity. The limiting ring is located in the movable cavity and abuts against the spring. The fixing cylinder is fixedly connected to the fixing block and is located on the fixing block. The fixing block is fixedly connected to the fixing ring and is located on the end face of the fixing ring. The rounded end of the stop bar abuts against the outside of the main ventilation pipe.

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