Four-cavity nose plug
By designing the dual-cavity oxygen supply and end-expiratory CO2 sampling structure with four-chamber nasal congestion, the problems of insufficient end-expiratory CO2 sampling and unstable oxygen inhalation are solved, ensuring the safe management of the anesthetic airway outside the operating room, and avoiding the reflux of secretions to block the tube.
Patent Information
- Application Number
- CN202421365667.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-06-14
AI Technical Summary
In the airway management outside the operating room, the existing nasal congestion has insufficient end-expiratory CO2 sampling, insufficient oxygen inhalation, and it is impossible to avoid the reflux of secretions in the nasal cavity, which affects the safety management of airways and may even lead to the risk of the patient's life.
A four-chamber nasal congestion, including dual-chamber oxygen supply and dual-chamber end-expiratory CO2 sampling structure, adopts curved sampling pipes and protruding structures to ensure that the oxygen channel and CO2 channel are independent and set from the nasal space to avoid backflow of secretions.
It realizes stable oxygen supply between the two chambers and accurate end-expiratory CO2 sampling, avoids secretions blocking the tube, and improves the safety management effect of the anesthetic airway outside the operating room.
Smart Images
Figure CN223196399U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a four-cavity nasal plug. Background Art
[0002] Safety and quality are eternal themes in clinical medicine. Airway management, with ventilation and oxygenation at its core, ensures both safety and quality. End-tidal CO2 monitoring is a technology that allows for the timely detection of inadequate ventilation while maintaining oxygenation.
[0003] At present, there is a lack of simple and effective tools for safe airway management outside the operating room. Existing nasal plugs have the following shortcomings: the functions of end-tidal CO2 sampling and oxygen inhalation are either single-nostril or double-nostril for end-tidal CO2 sampling. Therefore, there are problems such as insufficient end-tidal CO2 sampling and insufficient and unstable oxygen inhalation. In addition, the nasal plugs with existing technology cannot prevent the backflow of secretions in the nasal cavity from blocking the tube, which will directly affect the safe management of the patient's airway and even pose a life-threatening risk to the patient in severe cases. Utility Model Content
[0004] In order to solve the above technical problems, the utility model discloses a four-chamber nasal plug, which can avoid secretion backflow and tube blockage on the basis of realizing dual-chamber oxygen supply and dual-chamber end-tidal CO2 sampling, thereby effectively solving the problem of anesthesia airway safety management outside the operating room.
[0005] The specific technical solutions of the utility model are as follows:
[0006] A four-chamber nasal plug, comprising:
[0007] A nasal plug body, wherein the nasal plug body is provided with a first channel and a second channel along its axial direction;
[0008] The nasal plug body is further provided with two oxygen through holes connected to channel one, and two carbon dioxide through holes connected to channel two, and the carbon dioxide through holes are equipped with sampling pipes;
[0009] The sampling tube is in a curved structure, and its diameter is smaller than the diameter of the nasal cavity, so that when the sampling tube is inserted into the nasal cavity, there is a gap between the sampling tube and the nasal cavity.
[0010] The nasal plug body is provided with channel one and channel two, which are used to connect the oxygen through hole and the carbon dioxide through hole respectively. There are two oxygen through holes and two carbon dioxide through holes, forming a dual-chamber oxygen supply and a dual-chamber end-tidal CO2 sampling, thereby achieving sufficient oxygen supply and end-tidal CO2 sampling for the patient; on this basis, the carbon dioxide through hole is equipped with a sampling pipe, and the sampling pipe is set to a curved structure bend pipe, the diameter of which is smaller than the diameter of the nasal cavity, so that when the patient wears the nasal plug, after the sampling pipe is extended into the nasal cavity, it cannot contact the inner wall of the nasal cavity, so that the secretions produced by the inner wall of the nasal cavity cannot enter the sampling pipe, thereby avoiding the secretion backflow and clogging the tube.
[0011] Preferably, the channel 1 and the channel 2 are arranged in parallel, and the channel 1 is located on the upper side of the channel 2.
[0012] This structure can well achieve accurate oxygen supply and end-tidal CO2 sampling.
[0013] Preferably, the channel 1 is led out from one end of the nasal plug body, and the channel 2 is led out from the other end of the nasal plug body.
[0014] This structure facilitates the connection of the nasal plug to external equipment, making it convenient to wear the nasal plug on the patient's head, thereby ensuring the stability of oxygen supply and end-tidal CO2 sampling.
[0015] Preferably, two protrusions are provided on the nasal plug body, and the oxygen through holes and the carbon dioxide through holes are respectively provided on the protrusions in a one-to-one correspondence.
[0016] The protrusion can effectively block end-tidal CO2, making end-tidal CO2 sampling more accurate and ensuring sufficient oxygen supply, thereby enabling the patient to fully maintain oxygenation and ensure timely warning of ventilation abnormalities.
[0017] Preferably, the two protrusions are symmetrically arranged on the nasal plug body.
[0018] This structure corresponds to the two nasal cavities, thereby better achieving oxygen supply and end-tidal CO2 sampling.
[0019] Preferably, the nasal plug body is further provided with a nasal bridge wing, which is located between the two protrusions and is used to support the patient's nasal bridge when using the four-cavity nasal plug.
[0020] When the patient uses the nasal plug, the nose bridge wings abut against the patient's nose bridge, thereby better meeting the stability of the nasal plug.
[0021] Preferably, an air flow channel is provided between the nose bridge wing and any one of the protrusions.
[0022] The airflow channel can connect the inside and outside of the nasal cavity, allowing the airflow to enter and exit the nasal cavity smoothly with breathing, so that when exhaling, the exhaled airflow is guaranteed to be smooth and no oxygen cavity is formed to dilute the end-tidal CO2 sample, thereby ensuring the stability of the end-tidal CO2 sampling. At the same time, when inhaling, the mixing of oxygen and air is guaranteed to help oxygen inhalation.
[0023] Preferably, the nose bridge wing is a flat structure folded toward one side of the protruding portion.
[0024] The nose bridge wing is angled inward, and the reaction force formed when it abuts against the patient's nose bridge causes the CO2 sampling tube to hang at the lower end of the internal nasal threshold, effectively preventing secretions from flowing back and clogging the tube; at the same time, the fulcrum formed when the flat structure abuts against the patient's nose bridge can better fix the nasal congestion.
[0025] Preferably, the end surface of the protrusion away from the nasal plug body includes a first plane and a second plane arranged at an angle;
[0026] The oxygen through hole is arranged on plane one, and the carbon dioxide through hole is arranged on plane two.
[0027] The oxygen through hole is arranged on plane one, and the carbon dioxide through hole is arranged on plane two, so that the oxygen flow path and the exhaled gas flow path produce different changes; when exhaling, plane one helps oxygen to leak out smoothly, avoiding the formation of oxygen air cavity to dilute the end-tidal CO2 sample. At the same time, plane two has an effective blocking effect on the end-tidal CO2. The synergistic effect of the two helps to make the end-tidal CO2 sampling more accurate.
[0028] Preferably, it also includes:
[0029] an oxygen tube, the oxygen tube being in communication with channel one; and
[0030] A carbon dioxide tube is connected to the second channel.
[0031] The oxygen tube and the carbon dioxide tube are used for supply and inhalation respectively, which can well meet the use requirements of nasal congestion.
[0032] Compared with the existing technology, the utility model can achieve dual-chamber stable oxygen supply and dual-chamber end-tidal CO2 accurate sampling, solving the problems of insufficient end-tidal CO2 sampling and insufficient and unstable oxygen inhalation; the utility model can effectively prevent secretions from flowing back and blocking the tube, thereby improving the safety management of anesthesia airway outside the operating room. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 A schematic diagram of an embodiment of the present utility model;
[0034] Figure 2 for Figure 1 A top view of
[0035] Figure 3 for Figure 2 AA cross-sectional view.
[0036] In the figure: 1-nasal plug body; 2-channel one; 3-channel two; 4-oxygen through hole; 5-carbon dioxide through hole; 6-sampling pipe; 7-protrusion; 8-plane one; 9-plane two; 10-nose bridge wing; 11-airflow channel. DETAILED DESCRIPTION
[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.
[0038] like Figures 1 to 3 As shown, a four-cavity nasal plug includes a nasal plug body 1, which is provided with channel 1 2 and channel 2 3 along its axial direction. The nasal plug body 1 is also provided with two oxygen through-holes 4 connected to channel 1 2, and two carbon dioxide through-holes 5 connected to channel 2 3. The carbon dioxide through-holes 5 are equipped with a sampling tube 6. The sampling tube 6 has a curved structure and a diameter smaller than the diameter of the nasal cavity. This ensures that there is a gap between the sampling tube 6 and the nasal cavity when the sampling tube 6 is inserted into the nasal cavity. Furthermore, channel 1 2 and channel 2 3 are arranged in parallel, with channel 1 2 located above channel 2 3.
[0039] In this embodiment, an oxygen tube and a carbon dioxide tube are also included; the oxygen tube is connected to channel 1 2 ; the carbon dioxide tube is connected to channel 2 3 .
[0040] The oxygen tube is connected to an external oxygen source to realize oxygen supply to the patient; the carbon dioxide tube is connected to the monitoring equipment to suck the patient's end-tidal CO2 to realize end-tidal CO2 sampling, monitoring and early warning, thereby realizing stable dual-chamber oxygen supply while realizing accurate dual-chamber end-tidal CO2 sampling, monitoring and early warning.
[0041] When using this embodiment, the oxygen through hole 4 is directly facing the front end of the external nostril and is above the sampling pipe 6. The oxygen through hole 4 supplies oxygen directly to the front end of the external nostril, thereby being able to keep the oxygen mixed with the air to meet the requirements of sufficient oxygen supply. The sampling pipe 6 and the nasal plug body 1 are combined into a curved structure, specifically a π-shaped structure. The sampling pipe 6 is located below the oxygen through hole 4. When in use, the sampling pipe 6 penetrates into the nasal vestibule and is located at the lower end of the internal nasal threshold. The end-tidal CO2 sampling is performed directly at the lower end of the internal nasal threshold, thereby reducing the sample dilution caused by the oxygen supply. At the same time, since the sampling pipe 6 has a π-shaped curved structure, the interaction force between the nose bridge wing 10 and the patient's nose bridge makes a gap between the sampling pipe 6 and the nasal cavity, which can also effectively prevent the secretions from flowing back and blocking the tube.
[0042] In this embodiment, channel 1 2 is led out from one end of the nasal plug body 1, and channel 2 3 is led out from the other end of the nasal plug body 1. Thus, the oxygen tube and the carbon dioxide tube are respectively located at the two ends of the nasal plug body 1, so that the position of the nasal plug body 1 can be stably fixed by the oxygen tube and the carbon dioxide tube.
[0043] like Figure 1 As shown in the figure, in this embodiment, the nasal plug body 1 is provided with two protrusions 7, and the oxygen through holes 4 and the carbon dioxide through holes 5 are respectively provided on the protrusions 7 in a one-to-one correspondence. Furthermore, the end surface of the protrusion 7 away from the nasal plug body 1 includes a plane 1 8 and a plane 2 9 arranged at an angle; the oxygen through holes 4 are provided on the plane 1 8, and the carbon dioxide through holes 5 are provided on the plane 2 9. Figure 1 As shown, the oxygen through-hole 4 and sampling conduit 6 are arranged in a short-top, long-bottom configuration. Since channel 1 2 and channel 2 3 are not interconnected, oxygen supply and end-tidal CO2 sampling are independent and non-interfering. This arrangement significantly reduces direct impact on the nasal mucosa, particularly during medium and high flow rates, significantly reducing complications such as nasal dryness. Furthermore, because plane 1 8 is angled outward at the outlet of the oxygen through-hole 4 and plane 2 9 is located at the root of the sampling conduit 6, blocking the path of exhaled gas, the oxygen and carbon dioxide flow paths can be altered differently during use. During end-tidal CO2 sampling, plane 1 8 effectively prevents sample dilution. Meanwhile, plane 2 9 and the protrusion 7 effectively block end-tidal CO2 as a whole. This structural design creates a synergistic effect, resulting in more accurate end-tidal CO2 sampling. In other words, the outward angle of plane 1 8 and the blocking effect of plane 2 9 directly on the path of exhaled gas cause the oxygen and carbon dioxide flow paths to change differently. During exhalation, plane 1 8 helps oxygen to be discharged smoothly outward, avoiding the formation of oxygen cavity to dilute the end-tidal CO2 sample. At the same time, plane 2 9 has an effective blocking effect on the end-tidal CO2. The synergistic effect of the two helps the end-tidal CO2 sampling to be more accurate.
[0044] In this embodiment, two protrusions 7 are symmetrically arranged on the nasal plug body 1. Such a structure is simple, easy to use, and can well meet the use requirements.
[0045] like Figure 1As shown, in this embodiment, the nasal plug body 1 is further provided with a nose bridge wing 10, and the nose bridge wing 10 is located between the two protrusions 7, and is used to support the patient's nose bridge when using a four-cavity nasal plug. Furthermore, there is an air flow channel 11 between the nose bridge wing 10 and any one of the protrusions 7. The middle position of the nose bridge wing 10 is supported on the patient's nose bridge, and its two sides form an air flow channel 11 with the protrusions 7 on the corresponding side. During specific use, the air flow channel 11 connects the inside and outside of the nasal cavity, allowing the air flow to flow in and out smoothly with breathing: when exhaling, it ensures that the exhaled air flow is smooth and does not form an oxygen cavity to dilute the end-tidal CO2 sample, ensuring the stability of the end-tidal CO2 sampling; when inhaling, it ensures that oxygen and air are mixed, so that the patient's oxygen inhalation effect is better. In this embodiment, the nose bridge wing 10 is a flat structure with an inward angle, which is more conducive to the nasal plug supporting the patient's nose bridge, making the nasal plug more stable to wear. It should be noted that, in this embodiment, the nose bridge wing 10, the oxygen tube, and the carbon dioxide tube are in a triangular stable state, thereby ensuring the wearing stability of the nasal plug.
[0046] Thus, in this embodiment, dual-chamber stable oxygen supply and dual-chamber accurate end-tidal CO2 sampling are achieved. In specific use, both nasal cavities of the patient can simultaneously inhale oxygen and perform end-tidal CO2 sampling, thereby ensuring sufficient end-tidal CO2 sampling on the basis of sufficient oxygen supply, thereby enabling the patient to fully maintain oxygenation and ensure timely warning when ventilation is abnormal. In addition, during the above process, due to the curved structure of the sampling tube 6, the interaction force between the nose bridge wing 10 and the patient's nose bridge creates a gap between the sampling tube 6 and the nasal cavity, and secretions in the nasal cavity cannot enter the sampling tube 6, thereby effectively solving the problem of anesthesia airway safety management outside the operating room.
[0047] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications shall also be considered within the scope of protection of the present invention.
Claims
1. A four-cavity nasal plug, characterized in that: include: A nasal plug body, wherein the nasal plug body is provided with a first channel and a second channel along its axial direction; The nasal plug body is further provided with two oxygen through holes connected to channel one, and two carbon dioxide through holes connected to channel two, and the carbon dioxide through holes are equipped with sampling pipes; The sampling tube is in a curved structure, and its diameter is smaller than the diameter of the nasal cavity, so that when the sampling tube is inserted into the nasal cavity, there is a gap between the sampling tube and the nasal cavity.
2. A four-cavity nasal plug according to claim 1, characterized in that: The channel 1 and the channel 2 are arranged in parallel, and the channel 1 is located on the upper side of the channel 2.
3. The four-cavity nasal plug according to claim 1, characterized in that: The channel 1 is led out from one end of the nasal plug body, and the channel 2 is led out from the other end of the nasal plug body.
4. The four-cavity nasal plug according to claim 1, characterized in that: The nasal plug body is provided with two protrusions, and the oxygen through holes and the carbon dioxide through holes are respectively provided on the protrusions in a one-to-one correspondence.
5. The four-cavity nasal plug according to claim 4, characterized in that: The two protrusions are symmetrically arranged on the nasal plug body.
6. The four-cavity nasal plug according to claim 5, characterized in that: The nasal plug body is also provided with a nose bridge wing, which is located between the two protrusions and is used to support the patient's nose bridge when using the four-cavity nasal plug.
7. The four-cavity nasal plug according to claim 6, characterized in that: An air flow channel is provided between the nose bridge wing and any one of the protruding portions.
8. The four-cavity nasal plug according to claim 6, characterized in that: The nose bridge wing is a flat structure folded toward one side of the protruding portion.
9. The four-cavity nasal plug according to claim 4, characterized in that: The end surface of the protrusion away from the nasal plug body includes a plane 1 and a plane 2 arranged at an angle; The oxygen through hole is arranged on plane one, and the carbon dioxide through hole is arranged on plane two.
10. The four-cavity nasal plug according to any one of claims 1 to 9, characterized in that: Also includes: an oxygen tube, the oxygen tube being in communication with channel one; and A carbon dioxide tube is connected to the second channel.