CN220025816U - High-flow nasal oxygen cannula - Google Patents
High-flow nasal oxygen cannula Download PDFInfo
- Publication number
- CN220025816U CN220025816U CN202321521881.2U CN202321521881U CN220025816U CN 220025816 U CN220025816 U CN 220025816U CN 202321521881 U CN202321521881 U CN 202321521881U CN 220025816 U CN220025816 U CN 220025816U
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- nasal
- oxygen
- high flow
- cannula
- plug
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- 239000001301 oxygen Substances 0.000 title claims abstract description 75
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 75
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 210000003928 nasal cavity Anatomy 0.000 claims abstract description 18
- 238000009423 ventilation Methods 0.000 claims abstract description 18
- 210000001331 nose Anatomy 0.000 claims description 26
- 238000002640 oxygen therapy Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 206010028748 Nasal obstruction Diseases 0.000 abstract description 8
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 6
- 229910002027 silica gel Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 210000000492 nasalseptum Anatomy 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 206010040943 Skin Ulcer Diseases 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000001989 nasopharynx Anatomy 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 231100000019 skin ulcer Toxicity 0.000 description 2
- 210000000216 zygoma Anatomy 0.000 description 2
- 208000025721 COVID-19 Diseases 0.000 description 1
- 208000025962 Crush injury Diseases 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 206010001053 acute respiratory failure Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a high-flow nasal oxygen cannula, and belongs to the technical field of medical instruments. The high flow nasal oxygen cannula includes: the nasal catheter is provided with a first nasal plug and a second nasal plug which are arranged in the nasal cavity respectively, a first ventilation duct which is used for introducing oxygen into the nasal cavity is formed in the first nasal plug, and a second ventilation duct which is used for introducing oxygen into the nasal cavity is formed in the second nasal plug; the diameter of the first nasal obstruction is larger than that of the second nasal obstruction, and the aperture of the first ventilation duct is larger than that of the second ventilation duct. The high-flow nasal oxygen cannula provided by the utility model forms nasal occlusion by utilizing the nasal catheter, improves airway pressure, improves clearance of dead space, improves comfort of patients, and reduces risk of pressure injury.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a high-flow nasal oxygen cannula.
Background
The nasal high flow therapy is a definite noninvasive respiratory support form, can generate flow of 60-80L/min, becomes standard care for patients with acute respiratory failure, and is widely applied to patients with COVID-19. During NHF treatment, the flow of air through the nasal oxygen cannula dilutes and purges the exhaled air in the upper airway, reduces rebreathing of airway exhaust, and creates a positive airway pressure that improves gas exchange.
The positive airway pressure varies dynamically with the magnitude of the respiratory flow, the magnitude of the positive pressure being determined primarily by the gas flow rate and flow resistance, which is determined by the nostril size and smoothness of the inner walls of the tube, so that a larger cross-sectional area and smooth inner walls reduce the gas flow resistance and increase the positive end expiratory pressure during NHF.
The conventional symmetrical nasal oxygen cannula has consistent double-sided aperture size, and smaller size catheters increase gas velocity, but may reduce pressure due to increased leakage, and reduce clearance from dead space. But larger sizes may risk complete occlusion of the nostrils.
The traditional 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.
The traditional nasal oxygen cannula is fixed around the head by adopting the fixing belt when in use, but the fixing belt is thinner, the fixing is unstable when the tension is low, the tension is high, the cheekbone crush injury is easily caused, and the comfort level of patients is reduced.
The traditional nasal oxygen cannula pipeline is connected with the nasal plug part into a whole, if the nasal oxygen cannula is damaged, the nasal oxygen cannula needs to be replaced completely, the nasal oxygen cannula is made of silica gel, and the cost is high.
Disclosure of Invention
The utility model aims to provide a high-flow nasal oxygen cannula so as to solve the problems that the sizes of the apertures on two sides of the traditional symmetrical nasal oxygen cannula are consistent, the gas speed of a catheter with smaller size can be increased, but the pressure can be reduced due to the increase of leakage, and the clearance rate of dead space is reduced.
The technical scheme for solving the technical problems is as follows:
the utility model provides a high flow nasal oxygen cannula, comprising: the nasal catheter is provided with a first nasal plug and a second nasal plug which are arranged in the nasal cavity respectively, a first ventilation duct which is used for introducing oxygen into the nasal cavity is formed in the first nasal plug, and a second ventilation duct which is used for introducing oxygen into the nasal cavity is formed in the second nasal plug;
the diameter of the first nasal obstruction is larger than that of the second nasal obstruction, and the aperture of the first ventilation duct is larger than that of the second ventilation duct.
Further, in the high flow nasal oxygen cannula, a soft cushion attached to the skin is provided on the nasal catheter, and the soft cushion is provided between the first nasal obstruction and the second nasal obstruction.
Further, in the high-flow nasal oxygen cannula, the cushion is made of silica gel.
Further, in the high flow nasal oxygen cannula, the high flow nasal oxygen cannula further includes: the nose patch is correspondingly arranged on two sides of the nose catheter, two ends of the nose patch are positioned between the first nose plug and the second nose plug, and the nose patch is perpendicular to the axis of the first nose plug.
Further, in the high flow nasal oxygen cannula, the high flow nasal oxygen cannula further includes: the oxygen therapy device comprises an oxygen therapy hose and a sealing tube, wherein the oxygen therapy hose and the sealing tube are respectively arranged at two ends of the nasal catheter through threaded connecting tubes.
Further, in the high flow nasal oxygen cannula, the sealing tube, the nasal catheter and the connecting tube are all detachably connected.
Further, in the high flow nasal oxygen cannula, the high flow nasal oxygen cannula further includes: the connector is arranged at one end of the oxygen therapy hose, which is far away from the nasal catheter, through a threaded connecting pipe.
Further, in the high flow nasal oxygen cannula, the high flow nasal oxygen cannula further includes: and the elastic bands are respectively fixed on the two connecting pipes through connecting pieces.
Further, in the high flow nasal oxygen cannula, the elastic band is a cotton material.
Further, in the high flow nasal oxygen cannula, the connector includes: the connecting ring is sleeved on the connecting pipe, and the elastic band is connected to one end of the connecting piece, which is far away from the connecting ring.
The utility model has the following beneficial effects:
1. in the high-flow nasal oxygen cannula provided by the utility model, the diameters of nasal plugs on the nasal catheters are different, and the corresponding apertures of the pore passages formed in the nasal plugs are also different, so that compared with a standard symmetrical nasal catheter interface, the diameter of the nasal plug on one side is reduced, and the diameter of the nasal plug on the other side is increased. The total cross-sectional area of the two nasal prongs increases by about 30% to 40%. In nasal catheter interface systems, the nostrils are blocked by smaller diameter nasal plugs, creating a lower resistance path for exhaled air exiting the nasal cavity, and the bias flow from the larger diameter nasal plug also flows through the nasopharynx to the opposite nasal cavity, creating a reverse flow that peaks at the end of exhalation. The high-flow nasal oxygen cannula provided by the utility model forms nasal occlusion by utilizing the nasal catheter, improves airway pressure, improves clearance of dead space, improves comfort of patients, and reduces risk of pressure injury.
2. In the high-flow nasal oxygen cannula provided by the utility model, the nasal catheter is provided with the soft cushion which is attached to the skin, and the soft cushion is arranged between the first nasal obstruction and the second nasal obstruction. The contact area between the cushion and the skin is increased, so that the fitting degree of the nasal plug and the nasal cavity is improved, and the compression to the nasal septum is further reduced.
3. In the high-flow nasal oxygen cannula provided by the utility model, the soft cushion is made of silica gel, and the soft cushion made of silica gel has high comfort when being attached to skin.
4. In the high-flow nasal oxygen tube provided by the utility model, the oxygen therapy hose, the sealing tube, the nasal catheter and the connecting tube are all detachably connected. The disassembly and the replacement of the oxygen hose, the sealing tube, the connecting tube and the nasal catheter are convenient, and the cost is reduced. In the installation process, the direction of the nasal catheter can be changed through directly changing the direction of the connecting pipe, so that the use loss of the nasal catheter is reduced, the use rate is improved, and the applicability is higher.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
FIG. 1 is a schematic view of the structure of a high flow nasal oxygen cannula of the present utility model;
fig. 2 is a schematic structural view of a nasal catheter in a high flow nasal oxygen cannula of the present utility model.
In the drawings, the reference numerals and corresponding part names:
in the figure: 1-nasal catheter, 11-first nasal plug, 12-second nasal plug, 13-first ventilation duct, 14-second ventilation duct, 15-cushion, 16-nasal patch, 2-oxygen hose, 3-sealing tube, 4-connecting tube, 5-connector, 6-elastic band, 7-connector, 71-connecting ring, 72-connecting piece.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 and 2, the high flow nasal oxygen cannula provided by the present utility model includes: a nasal catheter 1, a first nasal plug 11 and a second nasal plug 12 which are used for being placed in a nasal cavity are respectively arranged on the nasal catheter 1, a first ventilation duct 13 which is used for introducing oxygen into the nasal cavity is arranged in the first nasal plug 11, and a second ventilation duct 14 which is used for introducing oxygen into the nasal cavity is arranged in the second nasal plug 12;
the diameter of the first nasal plug 11 is larger than the diameter of the second nasal plug 12, and the aperture of the first ventilation aperture 13 is larger than the aperture of the second ventilation aperture 14.
In the high-flow nasal oxygen cannula provided by the utility model, the diameters of the two nasal plugs on the nasal catheter 1 are different, and the diameters of the pore passages formed in the nasal plugs are different correspondingly, so that compared with the standard symmetrical nasal catheter 1 interface, the diameter of the nasal plug on one side is reduced, and the diameter of the nasal plug on the other side is increased. The total cross-sectional area of the two nasal prongs increases by about 30% to 40%. In the nasal catheter 1 interface system, the nostrils are blocked by the smaller diameter nasal prongs, creating a lower resistance path for the exhaled air exiting the nasal cavity, and the bias flow from the larger diameter nasal prongs also flows through the nasopharynx to the opposite nasal cavity, creating a reverse flow that peaks at the end of exhalation. The nasal catheter 1 is used for forming nasal occlusion, so that the airway pressure is improved, the clearance of dead space is improved, the comfort of a patient is improved, and the risk of pressure injury is reduced.
The utility model is not particularly limited in principle to the specific choice of the size and material of the nasal catheter 1, and can be selected and adjusted by a person skilled in the art according to the application situation, the production situation and the quality requirement.
Aiming at the fact that the front part of a traditional symmetrical nasal oxygen tube is flat, long-term use causes compression to the nasal labial sulcus and the nasal septum, patient comfort is poor, and the risks of pain and skin ulcer are increased.
In some versions of this embodiment, a skin-engaging cushion 15 is provided on the nasal catheter 1, and the cushion 15 is disposed between the first nasal prongs 11 and the second nasal prongs 12. The contact area with the skin is increased by the cushion 15, so that the fitting degree of the nasal plug and the nasal cavity is improved, and the compression to the nasal septum is further reduced.
The shape of the cushion 15 is not particularly limited in principle, and the shape of the cushion 15 conforms to the skin for improved comfort, and is ergonomic.
In some aspects of this embodiment, the cushion 15 is a silicone material. The soft pad 15 made of silica gel is soft and has high comfort when being attached to the skin.
In some aspects of this embodiment, the high flow nasal oxygen cannula further comprises: the nose patch 16, the nose patch 16 corresponds to be set up in the both sides of nasal catheter 1, and the both ends of nose patch 16 are located between first nasal prong 11 and second nasal prong 12, and the axis of nose patch 16 and first nasal prong 11 is perpendicular. The nose catheter 1 is fixed on the face of a human body through the nose patch 16, and the nose patch 16 is arranged on two sides of the nose catheter 1, so that the nose catheter 1 can be conveniently used after the direction of the nose catheter 1 can be changed. In addition, the included angle between the nose patch 16 and the two nasal plugs can be set to be more than 100 degrees, and can be adjusted according to actual conditions so as to meet better use comfort.
In some aspects of this embodiment, the high flow nasal oxygen cannula further comprises: the oxygen hose 2 and the sealing tube 3 are respectively arranged at two ends of the nasal catheter 1 through threaded connecting tubes 4.
In the utility model, the two ends of the joint of the nasal catheter 1 are provided with connecting threads, the oxygen hose 2 and the sealing tube 3 are respectively connected and arranged at the two ends of the nasal catheter 1 through the threaded connecting tube 4, one end of the nasal catheter 1 is sealed through the sealing tube 3, and the other end is connected with the oxygen hose 2 for oxygen therapy. Similarly, the two connecting parts of the connecting pipe 4 are provided with threads, and the direction of the nasal catheter 1 can be changed by directly changing the direction of the connecting pipe 4, so that the use loss of the nasal catheter 1 is reduced, and the use rate is improved.
The oxygen hose 2 of the utility model adopts a telescopic type, the outer diameter of the oxygen hose 2 is 1-1.5cm, the inner diameter is 0.8-0.9cm, and the pipeline of the oxygen hose 2 is slightly thicker than the traditional pipeline, so as to meet the requirement of high-flow oxygen therapy.
For more convenient use, the connecting pipe 4 also adopts telescopic type.
In some aspects of this embodiment, the oxygen therapy tube 2, the seal tube 3, the nasal cannula 1, and the connecting tube 4 are all detachably connected. The oxygen hose 2, the sealing tube 3, the connecting tube 4 and the nasal catheter 1 are convenient to detach and replace, and the cost is reduced. In the installation process, after the oxygen therapy hose 2 and the sealing tube 3 are detached from the connecting tube 4, the left and right positions of the nasal catheter 1 can be directly exchanged, so that the applicability is higher.
In some aspects of this embodiment, the high flow nasal oxygen cannula further comprises: the connector 5, the connector 5 is arranged at one end of the oxygen therapy hose 2 far away from the nasal catheter 1 through the threaded connecting pipe 4. The connector 5 is connected to the oxygen therapy machine.
The nose oxygen tube is fixed around the head by adopting the fixing belt when being used aiming at the traditional symmetrical nose oxygen tube, but the fixing belt is thinner, the fixing is unstable when the tension is low, the cheek bone is crushed easily due to high tension, and the comfort level of patients is reduced.
In some aspects of this embodiment, the high flow nasal oxygen cannula further comprises: the elastic band 6, the elastic band 6 is fixed on two connection 5 through the installation knot connecting piece 7 respectively, fixes the oxygen therapy tube at the head through the elastic band 6, through widening the design, can reduce the oppression to the face. In order to fix the oxygen catheter firmly, the elastic bands 6 are respectively fixed on the connecting pipe 5 in an upper group and a lower group, and the elastic bands 6 can be selected to be tied or additionally adjusted to be buckled into an adjusting type in the use process.
In some versions of this embodiment, the connector 7 comprises: the connecting ring 71 and set up two connection pieces 72 on the connecting ring 71, the connecting ring 71 cover is established on connecting pipe 4, and elastic band 6 is connected in the one end that the connection piece 72 kept away from the connecting ring 71.
The connecting piece 7 adopts the silica gel material to make, and go-between 71 and connection piece 72 integrated into one piece widens the width of connection piece 72 to 2-2.5cm, when laminating skin, increases the area of contact with skin, reduces the constraint sense, improves the comfort level.
In some versions of this embodiment, the elastic band 6 is a cotton material. The elastic band 6 made of cotton material is soft and has good elasticity.
In some schemes of the embodiment, the nasal catheter 1 is made of PP material, and has the advantages of light weight, good toughness, low manufacturing cost and capability of controlling the cost.
The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and it should be understood that the utility model is not limited to the particular embodiments disclosed, but is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the utility model.
Claims (10)
1. A high flow nasal oxygen cannula comprising: the nasal catheter (1), a first nasal plug (11) and a second nasal plug (12) which are used for being placed in a nasal cavity are respectively arranged on the nasal catheter (1), a first ventilation duct (13) which is used for introducing oxygen into the nasal cavity is arranged in the first nasal plug (11), and a second ventilation duct (14) which is used for introducing oxygen into the nasal cavity is arranged in the second nasal plug (12);
the diameter of the first nasal plug (11) is larger than that of the second nasal plug (12), and the aperture of the first ventilation pore canal (13) is larger than that of the second ventilation pore canal (14).
2. The high flow nasal oxygen cannula according to claim 1, characterized in that a skin-fitting cushion (15) is provided on the nasal catheter (1), and that the cushion (15) is provided between the first nasal prong (11) and the second nasal prong (12).
3. The high flow nasal oxygen cannula according to claim 2, characterized in that the cushion (15) is of silicone material.
4. The high flow nasal oxygen cannula of claim 1, further comprising: the nose patch (16), the nose patch (16) corresponds to be set up in the both sides of nose pipe (1), the both ends of nose patch (16) are located between first nasal prong (11) and second nasal prong (12), just nose patch (16) with the axis of first nasal prong (11) is perpendicular.
5. The high flow nasal oxygen cannula of claim 1, further comprising: the oxygen therapy device comprises an oxygen therapy hose (2) and a sealing tube (3), wherein the oxygen therapy hose (2) and the sealing tube (3) are connected to two ends of the nasal catheter (1) through threaded connecting tubes (4) respectively.
6. The high flow nasal oxygen cannula according to claim 5, characterized in that the nasal cannula (1) and the connection tube (4), the connection tube (4) and the oxygen hose (2), the connection tube (4) and the sealing tube (3) are all detachably connected.
7. The high flow nasal oxygen cannula of claim 5, further comprising: the connector (5), the connector (5) is in through threaded connecting pipe (4) set up oxygen therapy hose (2) keep away from the one end of nose pipe (1).
8. The high flow nasal oxygen cannula of claim 5, further comprising: and the elastic bands (6) are respectively fixed on the two connecting pipes (4) through connecting pieces (7).
9. The high flow nasal oxygen cannula of claim 8, wherein the elastic band (6) is a cotton material.
10. The high flow nasal oxygen cannula according to claim 8, wherein the connector (7) comprises: the connecting ring (71) and two connecting pieces (72) arranged on the connecting ring (71), the connecting ring (71) is sleeved on the connecting pipe (4), and the elastic band (6) is connected to one end, far away from the connecting ring (71), of the connecting pieces (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321521881.2U CN220025816U (en) | 2023-06-15 | 2023-06-15 | High-flow nasal oxygen cannula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321521881.2U CN220025816U (en) | 2023-06-15 | 2023-06-15 | High-flow nasal oxygen cannula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220025816U true CN220025816U (en) | 2023-11-17 |
Family
ID=88738257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321521881.2U Active CN220025816U (en) | 2023-06-15 | 2023-06-15 | High-flow nasal oxygen cannula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220025816U (en) |
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2023
- 2023-06-15 CN CN202321521881.2U patent/CN220025816U/en active Active
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