Nasal oxygen cannula and oxygen supply assembly

Abstract

The utility model relates to a nasal oxygen cannula and an oxygen supply assembly. The nasal oxygen cannula comprises a nasal catheter, the nasal obstruction tube is communicated with the nasal catheter and is used for extending into the nasal cavity to output oxygen; the flow guide structure is arranged on the inner wall of the nasal catheter and / or the nasal plug tube; the side face holes are formed in the side walls of the ends, extending into the nasal cavities, of the nasal plug pipes and communicated with inner cavities of the nasal plug pipes. In the nasal oxygen cannula, oxygen flow can be dredged in the nasal catheter and / or the nasal plug tube through the flow guide structure to form primary protection, so that gas vortex and nasal oxygen cannula shaking and noise caused by the gas vortex are reduced or avoided; besides, the side face holes are formed in the side walls of the ends, extending into the nasal cavities, of the nasal plug pipes, secondary protection is formed through the side face holes, and therefore environment oxygen can be increased, a patient can be treated comfortably, impact of gas pressure on the patient can be reduced, the patient can be fully treated and breathe comfortably, and gas vortex can be reduced at the nasal plug pipes.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly relates to a nasal oxygen tube and an oxygen supply assembly. Background Art

[0002] According to Figure 1 As shown, currently, the nasal oxygen tubes on the market mainly consist of a gas source connector 1 (high-flow connector, 22mm embedded connector), a guide ring 2, a catheter 3 (12mm spiral pipeline), an air outlet connector 4 (bent connector), a rotating ring 5, a nasal oxygen tube body 6, an adjustment buckle 7, and a headband 8.

[0003] However, its disadvantages include: 1. The air flow directly impacts the respiratory tract, causing discomfort to the patient; 2. When the flow rate is high, the nasal plug will swing, causing damage to the nasal mucosa; 3. The environmental oxygen is insufficient, and the patient cannot receive sufficient treatment; 4. The air flow is concentrated and the noise is large. Content of the Utility Model

[0004] The utility model provides a nasal oxygen tube and an oxygen supply assembly, which overcome the above technical problems.

[0005] The first aspect of the utility model provides a nasal oxygen tube, comprising:

[0006] A nasal catheter;

[0007] A nasal plug tube, connected to the nasal catheter and used for extending into the nasal cavity to output oxygen;

[0008] A flow guiding structure, arranged on the inner wall of the nasal catheter and / or the nasal plug tube;

[0009] Side holes, opened on the side wall of the end of the nasal plug tube extending into the nasal cavity and communicating with the inner cavity of the nasal plug tube.

[0010] Optionally, the number of the nasal plug tubes is set to two, and moreover, the outer diameter and / or the inner diameter of the two nasal plug tubes are different.

[0011] Optionally, the side holes are opened on the side wall of the end of at least one nasal plug tube extending into the nasal cavity.

[0012] Optionally, the end of the nasal plug tube extending into the nasal cavity is bent at an angle of 160°.

[0013] Optionally, the flow guiding structure comprises:

[0014] A flow guiding member, laid along the air flow direction on the inner wall of the nasal catheter and / or the nasal plug tube; and making the volumes of the adjacent cross-sections of the nasal catheter and / or the nasal plug tube different from each other.

[0015] Optionally, one end of the nasal catheter is sealed, and the other end is provided with a detachable sealing structure for connecting to a gas source pipeline.

[0016] Optionally, it further includes:

[0017] A wearing member, fixed to the outer wall of the nasal catheter, for cooperating the nasal oxygen tube with the nasal cavity.

[0018] Optionally, it further includes:

[0019] A soft pad, disposed on the outer surface of the nasal catheter and between the two nasal plug tubes.

[0020] In a second aspect of the present invention, an oxygen supply assembly is provided, including: the above-mentioned nasal oxygen tube; a gas source pipeline, connected to the nasal catheter to supply oxygen to the nasal catheter.

[0021] Compared with the prior art, the advantages of the present invention are that in this nasal oxygen tube, oxygen is introduced through the nasal catheter, flows through the nasal plug tube and then enters the user's nasal cavity for oxygen supply operation. Among them, through this diversion structure, the oxygen flow can be guided in the nasal catheter and / or the nasal plug tube to form a primary protection, thereby reducing or avoiding gas vortices and the resulting nasal oxygen tube jitter and noise; in addition, side holes are also provided on the side wall of the end portion extending into the nasal cavity in the nasal plug tube, forming a secondary protection through these side holes, so that gas vortices can be reduced in the nasal plug tube part, and the ambient oxygen can be increased, making the patient comfortable during treatment, and the impact of gas pressure on the patient can also be reduced, enabling the patient to receive sufficient treatment and breathe smoothly. Description of the Drawings

[0022] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the drawings.

[0023] Figure 1 is a schematic structural diagram of a nasal oxygen tube in the prior art;

[0024] Figure 2 is a cross-sectional schematic diagram of the nasal oxygen tube of the present invention;

[0025] Figure 3 is a schematic structural diagram of the nasal oxygen tube of the present invention.

[0026] Reference Signs:

[0027] 1. Gas source connector; 2. Guide ring; 3. Catheter; 4. Outlet connector; 5. Rotating ring; 6. Nasal oxygen tube body; 7. Adjusting buckle; 8. Headband; 9. Nasal catheter; 10. Wearing member; 11. Headband ear hole; 12. Ventilation connector; 13. Small nasal plug tube; 14. Side hole; 15. Large nasal plug tube; 16. Diversion structure; 17. Stopper; 18. Large nasal plug R angle; 19. Small nasal plug R angle; 20. Buckle structure. Detailed Embodiments

[0028] To facilitate the understanding of the embodiments of the present invention, the structure of the present invention will be described in detail through several specific embodiments below.

[0029] Figure 2 It is a schematic cross-sectional view of the nasal oxygen tube of the present invention; Figure 3 It is a schematic structural view of the nasal oxygen tube of the present invention.

[0030] According to Figure 2-3 As shown, the present invention provides a nasal oxygen tube and an oxygen supply assembly. To understand the structure and function of the nasal oxygen tube and the oxygen supply assembly, the nasal oxygen tube will be described integrally first to thoroughly understand the present invention.

[0031] This embodiment provides a nasal oxygen tube, which includes:

[0032] A nasal catheter 9;

[0033] A nasal plug tube, which is connected to the nasal catheter 9 and is used to extend into the nasal cavity to output oxygen;

[0034] A flow guiding structure 16, which is arranged on the inner wall of the nasal catheter 9 and / or the nasal plug tube;

[0035] Side holes 14, which are opened on the side wall of the end of the nasal plug tube extending into the nasal cavity and communicate with the inner cavity of the nasal plug tube.

[0036] In this nasal oxygen tube, oxygen is introduced through the nasal catheter 9, flows through the nasal plug tube and then enters the user's nasal cavity for oxygen supply operation. Among them, through the flow guiding structure 16, the oxygen flow can be guided in the nasal catheter 9 and / or the nasal plug tube to form a primary protection, so as to reduce or avoid gas vortices and the resulting jitter and noise of the nasal oxygen tube; in addition, side holes 14 are also opened on the side wall of the end of the nasal plug tube extending into the nasal cavity, and through these side holes 14, a secondary protection is formed, so that the environmental oxygen can be increased, the patient can be treated comfortably, and the impact of gas pressure on the patient can be reduced. The patient can be fully treated and breathe smoothly. Moreover, gas vortices can be reduced in the nasal plug tube part, so as to further reduce or avoid the jitter and noise of the nasal plug tube (nasal oxygen tube) on the basis of the flow guiding structure 16.

[0037] Specifically, in this embodiment, the nasal oxygen tube includes: a nasal catheter 9, a nasal plug tube, a flow guiding structure 16, and side holes 14. Among them, the nasal catheter 9 and the nasal plug tube are both tubular, and the nasal catheter 9 is connected to the gas source pipeline for obtaining oxygen from the gas source pipeline; one end of the nasal plug tube penetrates the side wall of the nasal catheter 9 to communicate with the nasal catheter 9; side holes 14 are opened on the side wall of the end of the nasal plug tube extending into the nasal cavity, and these side holes 14 penetrate the side wall of the nasal plug tube to communicate with the inner cavity of the nasal plug tube; in addition, the flow guiding structure 16 is arranged on the inner wall of the nasal catheter 9 and / or the nasal plug tube.

[0038] For the above nasal catheter 9, it can be connected to the gas supply pipeline at both ends, or it can be set as shown in Figure 2-3 the nasal catheter 9 with one end sealed and the other end provided with a detachable sealing structure for connecting to the gas supply pipeline. Among them, the other end of the nasal catheter 9 is provided with a ventilation joint 12, and the ventilation joint 12 is provided with a buckle structure 20. The nasal catheter 9 is connected to the gas supply pipeline through the ventilation joint 12 and fixed to the gas supply pipeline through the buckle structure 20. Moreover, a wearing member 10 is also provided on the nasal oxygen tube, and the wearing member 10 is fixed to the outer wall of the nasal catheter 9 for matching the nasal oxygen tube with the nasal cavity. The wearing member 10 includes but is not limited to: a headband for wearing the nasal oxygen tube on the head, and the headband can cooperate with the ears through the headband ear holes 11 or can be directly sleeved on the head.

[0039] In addition, the front part of the traditional symmetrical nasal oxygen tube is flat, which causes compression on the nasolabial groove and nasal septum after long-term use, resulting in poor comfort for patients and increasing the risk of pain and skin ulceration. Therefore, in this embodiment, a soft pad (not marked in the figure) is provided on the outer surface of the nasal catheter 9 and between the two nasal plug tubes. By means of the soft pad (not marked in the figure), the contact area with the skin is increased, thereby improving the fitting degree of the nasal plug tube and the nasal cavity and further reducing the compression on the nasal septum. In the present utility model, there is no special limitation on the shape of the soft pad (not marked in the figure). In order to improve comfort, the shape of the soft pad (not marked in the figure) fits the skin and conforms to ergonomics. For example, the soft pad (not marked in the figure) is made of silica gel. The soft pad made of silica gel has a soft material and a high comfort level when contacting the skin.

[0040] In addition, in this embodiment, for the nasal catheter 9, the number thereof can be set to one or two. If the number of nasal plug tubes is set to one, the nasal oxygen tube is a single-nose-rack nasal oxygen tube. If the number of nasal plug tubes is set to two, the nasal oxygen tube is a double-nose-rack nasal oxygen tube. Of course, in the single-nose-rack nasal oxygen tube or the double-nose-rack nasal oxygen tube, the nasal plug tube and the nasal catheter 9 can be set to be detachably and fixedly connected.

[0041] When the number of the nasal plug tubes is set to two, the sizes of the two nasal plug tubes can be set to be the same. Of course, they can also be different according to Figure 2 and 3 the outer diameter and / or inner diameter of the two nasal plug tubes shown in. For example,

[0042] The two nasal plugs include: a large nasal plug 15 and a small nasal plug 13. There are the following four situations regarding the sizes of the large nasal plug 15 and the small nasal plug 13: 1. The outer diameter of the large nasal plug 15 is greater than that of the small nasal plug 13, and the inner diameter of the large nasal plug 15 is greater than that of the small nasal plug 13; 2. The outer diameter of the large nasal plug 15 is greater than that of the small nasal plug 13, and the inner diameter of the large nasal plug 15 is less than that of the small nasal plug 13; 3. The outer diameter of the large nasal plug 15 is less than that of the small nasal plug 13, and the inner diameter of the large nasal plug 15 is greater than its own inner diameter; 4. The outer diameter of the large nasal plug 15 is less than that of the small nasal plug 13, and the inner diameter of the large nasal plug 15 is less than its own inner diameter.

[0043] Taking the case where the outer diameter of the large nasal plug 15 is greater than that of the small nasal plug 13 as an example, the following technical solutions are described: Compared with the interface of the standard symmetric nasal plugs (the outer diameters of the two nasal plugs are the same), the diameter of the small nasal plug 13 is reduced, and the diameter of the large nasal plug 15 is increased. The total cross-sectional area of the two nasal plugs may increase by about 30% to 40%. Moreover, the nostrils are blocked by the small nasal plug 13 with a smaller diameter, creating a lower resistance path for the exhaled gas to discharge from the nasal cavity. The side flow flowing out from the large nasal plug 15 with a larger diameter also flows through the nasopharynx to the contralateral nasal cavity, forming a reverse flow, which reaches a peak at the end of exhalation. The nasal oxygen tube provided by the present utility model utilizes the nasal catheter 9 to form nasal occlusion, improves airway pressure and the clearance of dead space, enhances the comfort of patients, and reduces the risk of pressure injury.

[0044] In addition, there are no special restrictions on the specific selection of the size and material of the nasal catheter 9 in the present utility model. Those skilled in the art can make selections and adjustments according to the application situation, production situation, and quality requirements. The present utility model can process the nasal catheter 9 into three different models of large, medium, and small according to the size of the nasal plug, meeting the needs of more patients.

[0045] In addition, in another embodiment, when the number of the nasal plugs is set to two, regardless of whether the sizes of the two nasal plugs are the same or the outer diameter and / or inner diameter of the two nasal plugs are different, the side holes 14 are opened on the side wall of the end portion of at least one of the nasal plugs extending into the nasal cavity. For example: The side walls of the end portions of both nasal plugs extending into the nasal cavity are provided with side holes 14, or, the side walls of the end portions of one of the nasal plugs extending into the nasal cavity are provided with side holes 14, that is: as Figure 2-3 shown, the side wall of the end portion of the large nasal plug 15 extending into the nasal cavity is provided with side holes 14.

[0046] In addition, in any of the above embodiments, the number of the side holes 14 is set to be at least one. Further, the side holes 14 are opened on the side wall of the end of the nasal plug tube facing away from the user's face, or the side holes 14 are opened on the side wall of the end of the nasal plug tube facing the user's face, or the side holes 14 are opened on the side wall of the end of the nasal plug tube facing the user's face and the side wall of the end facing away from the user's face. Or, when the number of the side holes 14 is at least two, the side holes 14 can also be evenly distributed around the circumference of the nasal plug tube. For example: Figure 2-3 As shown, the number of the side holes 14 is set to be 6, and the side holes 14 are divided into two rows and evenly distributed along the axial direction of the large nasal plug tube 15 on the side wall of the end of the large nasal plug tube 15 extending into the nasal cavity.

[0047] It should be noted that on the basis of any of the above embodiments, the end of the nasal plug tube extending into the nasal cavity is bent at 160°. Only the end of one nasal plug tube extending into the nasal cavity is bent at 160°, or the ends of both nasal plug tubes extending into the nasal cavity are bent at 160°, so as to form a three-level protection to prevent the high-speed airflow from directly impacting the frontal sinus of the patient and causing discomfort to the patient, thereby improving the comfort of the patient.

[0048] On the basis of any of the above embodiments, for the flow guiding structure 16, it includes: a flow guiding member, which is laid along the airflow direction on the inner wall of the nasal catheter 9 and / or the nasal plug tube; and the volumes of the adjacent cross-sections of the nasal catheter 9 and / or the nasal plug tube are different. For example: the flow guiding member is laid along the airflow direction on the inner wall of the nasal catheter 9, and the volumes of the adjacent cross-sections of the nasal catheter 9 are different; or, the flow guiding member is laid along the airflow direction on the inner wall of the nasal plug tube, and the volumes of the adjacent cross-sections of the nasal plug tube are different; or, the flow guiding member is laid along the airflow direction on the inner walls of the nasal catheter 9 and the nasal plug tube, and the volumes of the adjacent cross-sections of the nasal catheter 9 and the nasal plug tube are different.

[0049] Specifically, such as Figure 2-3The nasal catheter 9 shown is provided with one end sealed and the other end provided with a detachable sealing structure for connecting to a gas supply pipeline. Moreover, the large nasal plug tube 15 is arranged between the small nasal plug tube 13 and the sealed end of the nasal catheter 9. Among them, the flow guiding member includes: a stop head 17, a large nasal plug R corner 18, and a small nasal plug R corner 19. The stop head 17 is laid on the inner wall of the sealed end of the nasal catheter 9, the large nasal plug R corner 18 is laid at the connection between the nasal catheter 9 and the large nasal plug tube 15, and the small nasal plug R corner 19 is respectively laid at the connection between the nasal catheter 9 and the small nasal plug tube 13. Moreover, the flow guiding member is also laid on the inner walls of the large nasal plug tube 15 and the small nasal plug tube 13. Through the flow guiding member, cavities with different volume sizes are formed on the respective gas flow paths of the nasal catheter 9, the large nasal plug tube 15, and the small nasal plug tube 13, thereby forming a multi-stage expansion type sound absorption structure. Preferably, based on the laying of the flow guiding member on the inner walls of the nasal catheter 9, the large nasal plug tube 15, and the small nasal plug tube 13, the inner walls of the nasal catheter 9, the large nasal plug tube 15, and the small nasal plug tube 13 are arranged in a gradually changing arc shape to construct the above-mentioned multi-stage expansion type sound absorption structure, so as to guide the gas accordingly and reduce gas vortices.

[0050] In another embodiment, an oxygen supply assembly is also provided. The oxygen supply assembly includes the nasal oxygen tube and the gas supply pipeline mentioned above. The nouns and implementation principles involved in a nasal oxygen tube and a gas supply pipeline in this embodiment can specifically refer to the above-mentioned nasal oxygen tube and will not be elaborated here.

[0051] Although the present utility model has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A nasal oxygen cannula, characterized in that: include: Nasal cannula (9); A nasal obstruction tube, connected to the nasal catheter (9), and used for extending into the nasal cavity to output oxygen; A flow guiding structure (16) is arranged on the inner wall of the nasal catheter (9) and / or the nasal obstruction tube; A side hole (14) is formed in the side wall of the end of the nasal tube extending into the nasal cavity and is connected to the inner cavity of the nasal tube; The number of the nasal congestion tubes is set to two, and the outer diameters and / or inner diameters of the two nasal congestion tubes are different; The flow guiding structure (16) comprises: A flow guide is laid on the inner wall of the nasal catheter (9) and / or the nasal obstruction tube along the airflow direction, and makes the volumes of adjacent cross sections of the nasal catheter (9) and / or the nasal obstruction tube different; The flow guide comprises: a stopper (17), a large nose plug R angle (18), and a small nose plug R angle (19). The stopper (17) is laid on the inner wall of the nasal catheter (9), the large nose plug R angle (18) is laid on the connection between the nasal catheter (9) and any one of the nasal plug tubes, and the small nose plug R angle (19) is laid on the connection between the nasal catheter (9) and another nasal plug tube.

2. The nasal oxygen cannula according to claim 1, characterized in that: The side hole (14) is opened on the side wall of the end of at least one of the nasal obstruction tubes extending into the nasal cavity.

3. The nasal oxygen cannula according to claim 1, characterized in that: The end of the nasal obstruction tube extending into the nasal cavity is bent at 160 degrees.

4. The nasal oxygen cannula according to claim 1, characterized in that: One end of the nasal catheter (9) is sealed, and the other end is provided with a detachable sealing structure for connecting to an air source pipeline.

5. The nasal oxygen cannula according to claim 1, characterized in that: Also includes: A wearing piece (10) is fixed to the outer wall of the nasal catheter (9) and is used to match the nasal oxygen tube with the nasal cavity.

6. The nasal oxygen cannula according to claim 2, characterized in that: Also includes: A soft cushion is arranged on the outer surface of the nasal catheter (9) and is located between the two nasal obstruction tubes.

7. An oxygen supply assembly, characterized in that: include: The nasal oxygen cannula according to any one of claims 1 to 6; An air source pipeline is connected to the nasal catheter (9) to supply oxygen to the nasal catheter (9).

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