CN222955774U - Nasal oxygen cannula and oxygen supply assembly - Google Patents
Nasal oxygen cannula and oxygen supply assembly Download PDFInfo
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- CN222955774U CN222955774U CN202421628735.4U CN202421628735U CN222955774U CN 222955774 U CN222955774 U CN 222955774U CN 202421628735 U CN202421628735 U CN 202421628735U CN 222955774 U CN222955774 U CN 222955774U
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Abstract
The utility model relates to a nasal oxygen cannula and an oxygen supply assembly, wherein the nasal oxygen cannula comprises a nasal catheter; the nasal obstruction tube is communicated with the nasal catheter and 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 obstruction tube, and the side face hole is formed in the side wall of the end part of the nasal obstruction tube extending into the nasal cavity and is communicated with the inner cavity of the nasal obstruction tube. In the nasal oxygen tube, the diversion structure can conduct the oxygen flow in the nasal catheter and/or the nasal plug tube to form a first-level protection, so that the air vortex and the nasal oxygen tube shake and noise caused by the air vortex are reduced or avoided, in addition, a side hole is arranged on the side wall of the end part of the nasal plug tube, which extends into the nasal cavity, and a second-level protection is formed through the side hole, so that the environmental oxygen can be increased, the treatment comfort of a patient can be improved, the impact of the air pressure on the patient can be reduced, the patient can be fully treated, the breathing is smooth, and the air vortex can be reduced in the nasal plug tube part.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a nasal oxygen cannula and an oxygen supply assembly.
Background
According to fig. 1, the nasal oxygen cannula on the market at present mainly comprises an air source joint 1 (high flow joint, 22mm embedded joint), a guide ring 2, a guide pipe 3 (12 mm spiral pipeline), an air outlet joint 4 (bent joint), a rotating ring 5, a nasal oxygen cannula body 6, an adjusting buckle 7 and a head band 8.
But the disadvantages include 1. The direct flow of air to the respiratory tract, which leads to the discomfort of the patient, 2. The nasal obstruction swings and damages the nasal mucosa when the flow is large, 3. The lack of ambient oxygen, the patient is not fully treated, 4. The air flow is concentrated and the noise is large.
Disclosure of utility model
The utility model provides a nasal oxygen cannula and an oxygen supply assembly, which overcome the technical problems.
The first aspect of the present utility model provides a nasal oxygen cannula comprising:
A nasal catheter;
the nasal obstruction tube is communicated with the nasal catheter and used for extending into the nasal cavity to output oxygen;
the flow guiding structure is arranged on the inner wall of the nasal catheter and/or the nasal obstruction tube;
The side hole is arranged on the side wall of the end part of the nasal plug tube, which extends into the nasal cavity, and is communicated with the inner cavity of the nasal plug tube.
Optionally, the number of the nasal obstruction tubes is two, and the outer diameter and/or the inner diameter of the two nasal obstruction tubes are different.
Optionally, the side hole is formed in the side wall of the end part of at least one nasal obstruction tube, which extends into the nasal cavity.
Optionally, the end part of the nasal plug tube extending into the nasal cavity is bent at 160 degrees.
Optionally, the flow guiding structure includes:
The guide piece is laid on the inner wall of the nasal catheter and/or the nasal obstruction tube along the air flow direction, and the volumes of adjacent cross sections of the nasal catheter and/or the nasal obstruction tube are different.
Optionally, one end of the nasal catheter is sealed, and the other end is provided with a detachable sealing structure for connecting with an air source pipeline.
Optionally, the method further comprises:
And the wearing piece is fixed on the outer wall of the nasal catheter and is used for matching the nasal oxygen cannula with the nasal cavity.
Optionally, the method further comprises:
the soft cushion is arranged on the outer surface of the nasal catheter and is positioned between the two nasal obstruction tubes.
The second aspect of the utility model provides an oxygen supply assembly comprising the nasal oxygen cannula and an air source pipeline communicated with the nasal catheter for supplying oxygen to the nasal catheter.
Compared with the prior art, the nasal oxygen tube has the advantages that oxygen is introduced through the nasal catheter and flows through the nasal obstruction tube and then enters the nasal cavity of a user to perform oxygen supply operation, wherein the flow guiding structure can conduct oxygen flow guiding in the nasal catheter and/or the nasal obstruction tube to form primary protection, so that gas vortex and nasal oxygen tube vibration and noise caused by the gas vortex are reduced or avoided, in addition, a side hole is formed in the side wall of the end part of the nasal obstruction tube, which extends into the nasal cavity, and secondary protection is formed through the side hole, so that the gas vortex can be reduced in the nasal obstruction tube part, the environmental oxygen can be increased, the treatment comfort of a patient can be improved, the impact of the gas pressure on the patient can be reduced, the patient can be fully treated, and the respiratory comfort is realized.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
FIG. 1 is a schematic view of a prior art nasal oxygen cannula;
FIG. 2 is a schematic cross-sectional view of a nasal oxygen cannula of the present utility model;
Fig. 3 is a schematic structural view of the nasal oxygen cannula of the present utility model.
Reference numerals:
1. The nose oxygen tube comprises an air source connector, a guide ring, a guide pipe, an air outlet connector, a rotary ring, a nose oxygen tube body, an adjusting buckle, a head band, a nose guide pipe, a wearing piece, a head band ear hole, a ventilation connector, a small nose plug tube, a side hole, a large nose plug tube, a guide structure, a nose plug, a large nose plug R angle, a small nose plug ear hole, a buckle structure and a fastening structure, wherein the air source connector, the guide ring, the guide pipe, the air source connector, the guide ring, the air source connector, the guide pipe, the air outlet connector, the rotary ring, the nose oxygen tube body, the adjusting buckle and the nose plug R angle are respectively arranged in sequence, the nose plug ear hole and the nose plug ear hole are respectively arranged in sequence, the nose plug tube and the nose plug R angle is respectively.
Detailed Description
In order to facilitate understanding of the embodiments of the present utility model, the structure of the present utility model will be described in detail by way of several specific embodiments.
Fig. 2 is a schematic cross-sectional view of the nasal oxygen cannula of the present utility model, and fig. 3 is a schematic structural view of the nasal oxygen cannula of the present utility model.
According to the present utility model, there is provided a nasal oxygen cannula and oxygen delivery assembly as shown in figures 2-3. In order to understand the structure and function of the nasal oxygen cannula and oxygen delivery assembly, a general description of the nasal oxygen cannula will be provided to provide a thorough understanding of the present utility model.
The present embodiment provides a nasal oxygen cannula comprising:
a nasal catheter 9;
The nasal obstruction tube is communicated with the nasal catheter 9 and is used for extending into the nasal cavity to output oxygen;
The flow guiding structure 16 is arranged on the inner wall of the nasal catheter 9 and/or the nasal obstruction tube;
The side hole 14 is arranged on the side wall of the end part of the nasal plug tube, which extends into the nasal cavity, and is communicated with the inner cavity of the nasal plug tube.
In the nasal oxygen tube, oxygen is introduced through the nasal catheter 9 and flows into the nasal obstruction tube to supply oxygen, wherein the flow guiding structure 16 can conduct oxygen flow guiding in the nasal catheter 9 and/or the nasal obstruction tube so as to form primary protection, thereby reducing or avoiding gas vortex and nasal oxygen tube shaking and noise caused by the gas vortex, in addition, the side wall of the end part extending into the nasal cavity in the nasal obstruction tube is provided with a side hole 14, and secondary protection is formed through the side hole 14, thereby increasing environmental oxygen, ensuring that a patient is comfortable to treat, reducing impact of gas pressure on the patient, ensuring that the patient is fully treated, ensuring that breathing is smooth, and further reducing or avoiding the shaking and noise of the nasal obstruction tube (nasal oxygen tube) on the basis of the flow guiding structure 16.
Specifically, in the embodiment, the nasal oxygen cannula comprises a nasal catheter 9, a nasal obstruction tube, a flow guiding structure 16 and a side hole 14, wherein the nasal catheter 9 and the nasal obstruction tube are all in tubular arrangement, the nasal catheter 9 is connected with an air source pipeline and is used for acquiring oxygen from the air source pipeline, one end of the nasal obstruction tube penetrates through the side wall of the nasal catheter 9 to be communicated with the nasal catheter 9, the side hole 14 is formed in the side wall of the end part of the nasal obstruction tube, which extends into the nasal cavity, the side hole 14 penetrates through the side wall of the nasal obstruction tube to be communicated with the inner cavity of the nasal obstruction tube, and in addition, the nasal catheter 9 and/or the inner wall of the nasal obstruction tube are provided with the flow guiding structure 16.
For the nasal catheter 9, two ends of the nasal catheter 9 may be connected to an air source pipeline, or the nasal catheter 9 as shown in fig. 2-3 may be provided with a sealed end, and the other end is provided with a detachable sealing structure for connecting to the air source pipeline, wherein the other end of the nasal catheter 9 is provided with an air vent connector 12, the air vent connector 12 is provided with a buckle structure 20, and the nasal catheter 9 is connected to the air source pipeline through the air vent connector 12 and is fixed to the air source pipeline through the buckle structure 20. Furthermore, a wearing piece 10 is arranged on the nasal oxygen cannula, the wearing piece 10 is fixed on the outer wall of the nasal catheter 9 and is used for matching the nasal oxygen cannula with the nasal cavity, and the wearing piece 10 comprises, but is not limited to, a head band for carrying the nasal oxygen cannula on the head, and the head band can be matched with the ears through head band earholes 11 or can be directly sleeved on the head.
In addition, the traditional symmetrical nasal oxygen cannula has flat front part, presses the nasal labial sulcus and nasal septum after long-term use, has poor comfort level for patients, and increases the risks of pain and skin ulcer. Therefore, in this embodiment, a soft cushion (labeled in the figure) is provided on the outer surface of the nasal catheter 9 and between the two nasal prongs, and the contact area with the skin is increased by the soft cushion (labeled in the figure), so that the fitting degree of the nasal prongs to the nasal cavity is increased, and the compression to the nasal septum is further reduced. The shape of the cushion (shown in the figure) is not particularly limited in the present utility model, and the shape of the cushion (shown in the figure) is attached to the skin for the purpose of improving comfort, and the cushion (shown in the figure) is made of silica gel for example. The cushion (marked in the figure) made of silica gel is soft and has high comfort when being attached to the skin.
Further, in the present embodiment, the number of the nasal passages 9 may be set to one or two, and if the number of nasal obstruction tubes is set to one, the nasal oxygen tube is a single-nose-bridge nasal oxygen tube, and if the number of nasal obstruction tubes is set to two, the nasal oxygen tube is a double-nose-bridge nasal oxygen tube. Of course, in the single nose bridge nasal oxygen cannula or the double nose bridge nasal oxygen cannula, the nasal obstruction tube and the nasal catheter 9 can be detachably and fixedly connected.
In the case where the number of the nasal prongs is set to two, the sizes of the two nasal prongs may be set to be the same, but the outer diameter and/or the inner diameter of the two nasal prongs may be different according to fig. 2 and 3. Such as:
The two nasal obstruction pipes comprise a large nasal obstruction pipe 15 and a small nasal obstruction pipe 13, wherein the sizes of the large nasal obstruction pipe 15 and the small nasal obstruction pipe 13 are 4 cases that 1, the outer diameter of the large nasal obstruction pipe 15 is larger than the outer diameter of the small nasal obstruction pipe 13, the inner diameter of the large nasal obstruction pipe 15 is larger than the inner diameter of the small nasal obstruction pipe 13, 2, the outer diameter of the large nasal obstruction pipe 15 is larger than the outer diameter of the small nasal obstruction pipe 13, the inner diameter of the large nasal obstruction pipe 15 is smaller than the inner diameter of the small nasal obstruction pipe 13, 3, the outer diameter of the large nasal obstruction pipe 15 is smaller than the outer diameter of the small nasal obstruction pipe 13, the inner diameter of the large nasal obstruction pipe 15 is larger than the inner diameter of the large nasal obstruction pipe 15, and 4, the outer diameter of the large nasal obstruction pipe 15 is smaller than the outer diameter of the small nasal obstruction pipe 13.
Taking the example that the outer diameter of the large nasal obstruction tube 15 is larger than that of the small nasal obstruction tube 13, the following technical scheme is explained that compared with a standard symmetrical nasal obstruction tube (the outer diameters of two nasal obstruction tubes are the same) interface, the diameter of the small nasal obstruction tube 13 is reduced, and the diameter of the large nasal obstruction tube 15 is increased. The total cross-sectional area of the two nasal prongs may increase by about 30% to 40%. Moreover, the nostrils are blocked by the small nasal obstruction tube 13 with smaller diameter, which creates a lower resistance path for the exhaled air exiting the nasal cavity, and the bias flow from the large nasal obstruction tube 15 with larger diameter also flows through the nasopharynx to the opposite nasal cavity, creating a reverse flow, peaking at the end of exhalation. The nasal oxygen cannula provided by the utility model forms nasal occlusion by utilizing the nasal catheter 9, thereby improving airway pressure, improving clearance of dead space, improving comfort of patients and reducing risk of pressure injury.
In addition, the utility model has no special limitation on the specific selection of the size and the material of the nasal catheter 9, and the nasal catheter 9 can be processed into three different types of large, medium and small according to the diameter of the nasal obstruction tube by the utility model, so that the requirements of more patients are met.
Furthermore, in another embodiment, in the case where the number of the nasal prongs is two, the side hole 14 is opened in the side wall of the end portion of at least one of the nasal prongs extending into the nasal cavity, regardless of whether the two nasal prongs are the same size or different in outer diameter and/or inner diameter. For example, side holes 14 are formed on the side walls of the end parts of the two nasal plug tubes, which extend into the nasal cavity, or side holes 14 are formed on the side walls of the end parts of one nasal plug tube, which extend into the nasal cavity, namely, as shown in figures 2-3, side holes 14 are formed on the side walls of the end parts of the large nasal plug tube 15, which extend into the nasal cavity.
In addition, in any of the above embodiments, the number of the side holes 14 is at least one, and further, the side holes 14 are formed in the side wall of the end portion of the nasal obstruction tube facing away from the face of the user, or the side holes 14 are formed in the side wall of the end portion of the nasal obstruction tube facing towards the face of the user and the side wall of the end portion facing away from the face of the user, or, when the number of the side holes 14 is at least two, the side holes 14 may also be uniformly distributed around the circumference of the nasal obstruction tube. As shown in fig. 2-3, the number of the side holes 14 is 6, and the side holes 14 are divided into two rows which are uniformly distributed along the axial direction of the large nasal obstruction tube 15 and extend into the side wall of the end part of the nasal cavity in the large nasal obstruction tube 15.
It is noted that, on the basis of any of the above embodiments, the end portion of the nasal plug tube extending into the nasal cavity is bent at 160 °. Only one nose plug tube stretches into the end of the nasal cavity to be bent at 160 degrees, or the two nose plug tubes stretch into the end of the nasal cavity to be bent at 160 degrees, so that three-level protection is formed, discomfort to a patient caused by direct impact of high-speed air flow on the frontal sinus of the patient is prevented, and comfort of the patient is improved.
On the basis of any of the above embodiments, the flow guiding structure 16 comprises a flow guiding piece, wherein the flow guiding piece is laid on the inner wall of the nasal catheter 9 and/or the nasal obstruction tube along the airflow direction, and the volumes of adjacent cross sections of the nasal catheter 9 and/or the nasal obstruction tube are different. For example, the flow guide piece is laid on the inner wall of the nasal catheter 9 along the air flow direction and enables the volumes of the adjacent cross sections of the nasal catheter 9 to be different, or the flow guide piece is laid on the inner wall of the nasal obstruction tube along the air flow direction and enables the volumes of the adjacent cross sections of the nasal obstruction tube to be different, or the flow guide piece is laid on the inner wall of the nasal catheter 9 and the inner wall of the nasal obstruction tube along the air flow direction and enables the volumes of the adjacent cross sections of the nasal catheter 9 and the nasal obstruction tube to be different.
Specifically, the nasal cannula 9 shown in fig. 2-3 is provided with a seal at one end and a removable seal at the other end for connecting to an air supply line, and a large nasal cannula 15 is provided between the small nasal cannula 13 and the sealed end of the nasal cannula 9. The flow guide piece comprises a blocking head 17, a large nasal obstruction R angle 18 and a small nasal obstruction R angle 19, wherein the blocking head 17 is paved on the inner wall of the sealing end of the nasal catheter 9, the large nasal obstruction R angle 18 is paved at the joint of the nasal catheter 9 and the large nasal obstruction tube 15, the small nasal obstruction R angle 19 is paved at the joint of the nasal catheter 9 and the small nasal obstruction tube 13 respectively, and the flow guide piece is paved on the inner walls of the large nasal obstruction tube 15 and the small nasal obstruction tube 13, so that cavities with different volumes are formed on the nasal catheter 9, the large nasal obstruction tube 15 and the small nasal obstruction tube 13 on respective gas flow passages through the flow guide piece, thereby forming a multi-stage expansion type silencing structure. Preferably, based on the laying of the guide piece on the inner walls of the nasal catheter 9, the large nasal obstruction tube 15 and the small nasal obstruction tube 13, the inner walls of the nasal catheter 9, the large nasal obstruction tube 15 and the small nasal obstruction tube 13 are gradually arranged in an arc shape to construct the multistage expansion type silencing structure, so that the gas is dredged and the gas vortex is reduced.
In another embodiment, an oxygen supply assembly is also provided. The oxygen supply assembly includes the nasal oxygen cannula mentioned above and an air supply line. The terms and implementation principles of a nasal oxygen cannula and an air source line in this embodiment may refer to the nasal oxygen cannula specifically, and are not described herein.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (7)
1. The nasal oxygen cannula is characterized by comprising:
a nasal catheter (9);
the nasal obstruction tube is communicated with the nasal catheter (9) and is used for extending into the nasal cavity to output oxygen;
The flow guide structure (16) is arranged on the inner wall of the nasal catheter (9) and/or the nasal obstruction tube;
A side hole (14) which is arranged on the side wall of the end part of the nasal plug tube extending into the nasal cavity and is communicated with the inner cavity of the nasal plug tube;
The number of the nasal obstruction pipes is two, and the outer diameters and/or the inner diameters of the two nasal obstruction pipes are different;
The flow guiding structure (16) comprises:
the flow guide piece is paved on the inner wall of the nasal catheter (9) and/or the nasal obstruction tube along the air flow direction, and the volumes of adjacent cross sections of the nasal catheter (9) and/or the nasal obstruction tube are different;
The flow guiding piece comprises a blocking head (17), a large nasal obstruction R angle (18) and a small nasal obstruction R angle (19),
The blocking head (17) is paved on the inner wall of the nasal catheter (9), the large nasal plug R angle (18) is paved at the joint of the nasal catheter (9) and any nasal plug tube, and the small nasal plug R angle (19) is paved at the joint of the nasal catheter (9) and another nasal plug tube.
2. Nasal oxygen cannula according to claim 1, characterized in that the lateral hole (14) is provided in the lateral wall of the end of at least one of the nasal prongs extending into the nasal cavity.
3. The nasal oxygen cannula of claim 1, wherein the end of the nasal cannula extending into the nasal cavity is 160 ° bent.
4. Nasal oxygen cannula according to claim 1, characterized in that one end of the nasal cannula (9) is sealed and the other end is provided with a detachable sealing structure for connection to a gas source line.
5. The nasal oxygen cannula of claim 1, further comprising:
And the wearing piece (10) is fixed on the outer wall of the nasal catheter (9) and is used for matching the nasal oxygen tube with the nasal cavity.
6. The nasal oxygen cannula of claim 2, further comprising:
the soft cushion is arranged on the outer surface of the nasal catheter (9) and is positioned between the two nasal obstruction tubes.
7. An oxygen supply assembly, comprising:
The nasal oxygen cannula of any one of claims 1-6;
And the air source pipeline is communicated with the nasal catheter (9) to supply oxygen to the nasal catheter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421628735.4U CN222955774U (en) | 2024-07-10 | 2024-07-10 | Nasal oxygen cannula and oxygen supply assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421628735.4U CN222955774U (en) | 2024-07-10 | 2024-07-10 | Nasal oxygen cannula and oxygen supply assembly |
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| Publication Number | Publication Date |
|---|---|
| CN222955774U true CN222955774U (en) | 2025-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421628735.4U Active CN222955774U (en) | 2024-07-10 | 2024-07-10 | Nasal oxygen cannula and oxygen supply assembly |
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| CN (1) | CN222955774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120789418A (en) * | 2025-09-15 | 2025-10-17 | 沈阳迈思医疗科技有限公司 | Nasal obstruction conduit structure |
-
2024
- 2024-07-10 CN CN202421628735.4U patent/CN222955774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120789418A (en) * | 2025-09-15 | 2025-10-17 | 沈阳迈思医疗科技有限公司 | Nasal obstruction conduit structure |
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