Double-channel nasal oxygen cannula
By setting up connectors and mixing fittings below the nasal oxygen pipeline, the full mixing of the two gases is achieved, solving the problem of inconvenience and high cost when the existing nasal oxygen tube is injected into the patient, and reducing the cost of use.
Patent Information
- Application Number
- CN202420594656.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-26
AI Technical Summary
When the existing nasal oxygen tubes are injected into the patient with two gases, multiple nasal oxygen heads and pipelines need to be set up separately, which leads to inconvenient wear and high cost.
A dual-channel nasal oxygen tube is designed. By setting up a connector below the nasal oxygen tube, a mixing air cavity, a mixing channel and an exhaust air cavity are set in the connector. The two gases are mixed inside the connector by mixing, and then entering the nasal oxygen tube.
The full mixing of the two gases is achieved, and the two different gases can be breathed at the same time. The content of the two gases is almost the same when entering the nasal cavity, which reduces the cost of use.
Smart Images
Figure CN222676962U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of nasal oxygen cannulas, in particular to a double-channel nasal oxygen cannulas. Background Art
[0002] Nasal oxygen cannula is a medical device commonly used in medical institutions. It is used for emergency oxygen delivery and therapeutic oxygen therapy for patients with hypoxia. The purity of medical oxygen is above 98%. Pure oxygen is compressed in a special container. When delivering oxygen to patients with severe hypoxia, 5% carbon dioxide gas is often mixed into pure oxygen to maintain the excitement of the respiratory center. The current nasal oxygen cannula is generally a pipe with two nasal oxygen heads on it. If two gases are to be delivered to the patient, several nasal oxygen heads and pipelines need to be set up separately. The two gases enter the nasal cavity through the nasal oxygen heads separately, resulting in a large number of pipelines and nasal oxygen heads, which is inconvenient to wear. In addition, most of the current nasal oxygen cannula are integrated structures, which are destroyed after use and cannot be reused, resulting in high cost of use. To this end, we designed a dual-channel nasal oxygen cannula. Utility Model Content
[0003] In order to solve the technical problem of inconvenience in inputting two gases, the utility model provides a dual-channel nasal oxygen cannula.
[0004] The utility model is implemented by the following technical scheme: a dual-channel nasal oxygen tube, comprising a nasal oxygen connecting pipe, the upper part of which is integrally formed with two symmetrically arranged nasal oxygen tube heads, and the left end plug of the nasal oxygen connecting pipe is connected to a nasal oxygen line 1, and the right end plug of the nasal oxygen connecting pipe is connected to a nasal oxygen line 2, the ends of the nasal oxygen line 1 and the nasal oxygen line 2 away from the nasal oxygen tube head are connected to a connecting piece, and the lower left and right sides of the connecting piece are respectively connected to a connecting trachea 2 and a connecting trachea 1.
[0005] As a further improvement of the above scheme, the interior of the connecting piece is hollowly designed to form an installation air cavity, and a mixing tube is installed inside the installation air cavity. The mixing tube is placed in the middle position inside the installation air cavity, and the mixing tube divides the installation air cavity into two parts, an exhaust air cavity and a mixing air cavity. When the two gases enter the interior of the connecting piece, they will enter a space to mix, and then enter nasal oxygen tube one and nasal oxygen tube two.
[0006] As a further improvement of the above scheme, the upper end surface of the connecting piece is recessed downward to form two symmetrically arranged air outlet channels, and the lower end surface of the connecting piece is recessed upward to form two symmetrically arranged air inlet channels, and the air inlet channel is connected to the mixing air cavity, and the air outlet channel is connected to the exhaust air cavity, which facilitates the rapid installation of nasal oxygen tube 1, nasal oxygen tube 2 and connecting trachea 2, connecting trachea 1 on the connecting piece, and enables the two gases to mix and enter the two nasal cavities.
[0007] As a further improvement of the above scheme, the lower ends of the nasal oxygen tube 1 and the nasal oxygen tube 2 are respectively plugged into the two air outlet channels above the connecting piece, and the connecting trachea 2 and the connecting trachea 1 are respectively plugged into the two air inlet channels below the connecting piece, so that the nasal oxygen tube 1 and the nasal oxygen tube 2 as well as the connecting trachea 2 and the connecting trachea 1 can be quickly installed on the connecting piece.
[0008] As a further improvement of the above scheme, the upper surface of the mixing tube does not contact the top of the exhaust air cavity, and the lower surface of the mixing tube does not contact the bottom of the mixing air cavity, and there is a spacing of 2-3CM between the two. After the gas enters the mixing air cavity, it will enter the mixing tube and be evenly mixed, and then enter the exhaust air cavity. The space between them facilitates the circulation of gas.
[0009] As a further improvement of the above solution, a mixing channel is formed through the upper and lower ends of the mixing tube, and the exhaust gas cavity and the mixing gas cavity are interconnected through the mixing channel, so that the gas in the mixing gas cavity can enter the exhaust gas cavity and be discharged.
[0010] As a further improvement of the above scheme, the inner wall of the mixing channel is provided with a spiral groove with a spiral structure, and the top of the spiral groove is not connected to the outside, and the bottom end of the spiral groove is connected to the bottom end of the mixing tube. After the gas below enters the spiral groove, it can rise in a spiral shape, so that the two gases can be mixed more fully.
[0011] As a further improvement of the above scheme, the bottom edge of the mixing channel of the mixing tube is chamfered to form a guide arc surface, and the lower end of the guide arc surface is located above the two air inlet channels, which increases the diameter of the bottom of the mixing channel and enables the gas to enter the mixing channel more smoothly.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. The utility model provides a connector under the nasal oxygen tube 1 and the nasal oxygen tube 2, and the connector is provided with a mixing gas cavity, a mixing channel and an exhaust gas cavity for mixing gases, so that the two gases can be fully mixed together, and two different gases can be breathed at the same time, and the contents of the two gases are almost the same when entering the nasal cavity;
[0014] 2. The entire nasal oxygen tube is modularly designed, which is divided into several parts. These parts can be disassembled and replaced as needed to keep the nasal congestion clean and reduce the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a dual-channel nasal oxygen cannula provided by the utility model;
[0016] Figure 2 for Figure 1 A schematic cross-sectional view of the connecting member structure;
[0017] Figure 3 for Figure 1 A cross-sectional view of
[0018] Figure 4 for Figure 1 Cross-sectional view of the connecting piece and the mixing pipe.
[0019] Description of main symbols:
[0020] 1. Nasal oxygen tube 1; 2. Nasal oxygen tube 2; 3. Nasal oxygen connecting pipe; 31. Nasal oxygen tube head; 4. Connecting piece; 41. Mixing gas chamber; 42. Exhaust gas chamber; 43. Exhaust channel; 44. Inlet channel; 5. Connecting trachea 1; 6. Connecting trachea 2; 7. Mixing pipe fitting; 71. Mixing channel; 72. Spiral groove; 73. Guide arc surface. DETAILED DESCRIPTION
[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.
[0022] Example:
[0023] Please combine Figure 1-Figure 4 A dual-channel nasal oxygen tube of the present embodiment includes a nasal oxygen connecting pipe 3, and two symmetrically arranged nasal oxygen tube heads 31 are integrally formed on the top of the nasal oxygen connecting pipe 3, and the left end plug of the nasal oxygen connecting pipe 3 is connected to the nasal oxygen tube 1, and the right end plug of the nasal oxygen connecting pipe 3 is connected to the nasal oxygen tube 2 2, and the ends of the nasal oxygen tube 1 and the nasal oxygen tube 2 2 away from the nasal oxygen tube head 31 are connected to the connecting piece 4, and the left and right sides below the connecting piece 4 are respectively connected to the connecting trachea 2 6 and the connecting trachea 1 5.
[0024] The interior of the connector 4 is hollow and formed with an installation air cavity, in which a mixing tube 7 is installed. The mixing tube 7 is placed in the middle of the installation air cavity, and the mixing tube 7 divides the installation air cavity into two parts, an exhaust air cavity 42 and a mixing air cavity 41. The two gases enter the interior of the connector 4 and enter a space to mix, and then enter the nasal oxygen tube 1 and the nasal oxygen tube 2 2.
[0025] The upper end surface of the connecting piece 4 is recessed downward to form two symmetrically arranged air outlet channels 43, and the lower end surface of the connecting piece 4 is recessed upward to form two symmetrically arranged air inlet channels 44, and the air inlet channel 44 is connected to the mixed air cavity 41, and the air outlet channel 43 is connected to the exhaust air cavity 42, so that the nasal oxygen tube 1, the nasal oxygen tube 2, the connecting trachea 2, and the connecting trachea 1, 5 can be quickly installed on the connecting piece 4, and the two gases can be mixed and then enter the two nasal cavities.
[0026] The lower ends of the nasal oxygen tube 1 and the nasal oxygen tube 2 are respectively plugged into the two air outlet channels 43 above the connecting piece 4, and the connecting trachea 2 and the connecting trachea 1 are respectively plugged into the two air inlet channels 44 below the connecting piece 4, so that the nasal oxygen tube 1 and the nasal oxygen tube 2 as well as the connecting trachea 2 and the connecting trachea 1 are conveniently installed on the connecting piece 4 quickly.
[0027] The upper surface of the mixing tube 7 does not contact the top of the exhaust gas cavity 42, and the lower surface of the mixing tube 7 does not contact the bottom of the mixing gas cavity 41, and there is a distance of 2-3CM between the two. After the gas enters the mixing gas cavity 41, it will enter the mixing tube 7 and be evenly mixed, and then enter the exhaust gas cavity 42. The space between them facilitates the circulation of gas.
[0028] A mixing channel 71 is formed through the upper and lower ends of the mixing tube 7 , and the exhaust gas cavity 42 and the mixing gas cavity 41 are connected to each other through the mixing channel 71 , so that the gas in the mixing gas cavity 41 can enter the exhaust gas cavity 42 and be discharged.
[0029] The inner wall of the mixing channel 71 is provided with a spiral groove 72 with a spiral structure, and the top of the spiral groove 72 is not connected to the outside, and the bottom of the spiral groove 72 is connected to the bottom of the mixing tube 7. After the gas below enters the spiral groove 72, it can rise in a spiral shape, so that the two gases can be mixed more fully.
[0030] The bottom edge of the mixing channel 71 of the mixing tube 7 is chamfered to form a guide arc surface 73, and the lower end of the guide arc surface 73 is located above the two air inlet channels 44, which increases the diameter of the bottom of the mixing channel 71 and enables the gas to enter the mixing channel 71 more smoothly.
[0031] The implementation principle of a dual-channel nasal oxygen tube in the embodiment of the present application is as follows: in actual use, the upper parts of the nasal oxygen tube 1 and the nasal oxygen tube 2 are respectively plugged into the left and right ends of the nasal oxygen connecting tube 3, and the lower parts of the nasal oxygen tube 1 and the nasal oxygen tube 2 are respectively plugged into the two air outlet channels 43 of the connecting piece 4, and then the container for storing oxygen and carbon dioxide is connected to the two air inlet channels 44 of the connecting piece 4 through the connecting trachea 1 5 and the connecting trachea 2 6, so that oxygen and carbon dioxide can enter the mixed gas cavity 41 of the connecting piece 4 and be transported to the mixing channel 71 of the mixing tube 7. Since the mixing channel 71 is provided with a spiral groove 72, the two gases can be more fully mixed in the mixed gas cavity 41, the mixing channel 71 and the exhaust gas cavity 42, and then the mixed gas will enter the nasal oxygen tube 1 and the nasal oxygen tube 2, and be discharged through the nasal oxygen tube head 31 on the nasal oxygen tube;
[0032] By arranging a connector 4 under the nasal oxygen tube 1 and the nasal oxygen tube 2, the connector 4 is provided with a mixing gas cavity 41, a mixing channel 71 and an exhaust gas cavity 42 for mixing gases, so that the two gases can be fully mixed together, and two different gases can be breathed at the same time, and the contents of the two gases are almost the same when entering the nasal cavity;
[0033] The entire nasal oxygen tube is modularly designed and divided into several parts. These parts can be disassembled and replaced according to needs to keep the nasal congestion clean and reduce the cost of use.
[0034] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.
Claims
1. A dual-channel nasal oxygen cannula, comprising a nasal oxygen cannula (3), characterized in that: The upper part of the nasal oxygen connecting pipe (3) is integrally formed with two symmetrically arranged nasal oxygen tube heads (31), and the left end plug of the nasal oxygen connecting pipe (3) is connected to the nasal oxygen tube 1 (1), and the right end plug of the nasal oxygen connecting pipe (3) is connected to the nasal oxygen tube 2 (2). The ends of the nasal oxygen tube 1 (1) and the nasal oxygen tube 2 (2) away from the nasal oxygen tube head (31) are connected to the connecting piece (4), and the left and right sides below the connecting piece (4) are respectively connected to the connecting trachea 2 (6) and the connecting trachea 1 (5).
2. A dual-channel nasal oxygen cannula as claimed in claim 1, characterized in that: The connecting piece (4) is hollow inside to form an installation air cavity, a mixing pipe (7) is installed inside the installation air cavity, the mixing pipe (7) is placed in the middle of the installation air cavity, and the mixing pipe (7) divides the installation air cavity into two parts, namely, an exhaust air cavity (42) and a mixing air cavity (41).
3. A dual-channel nasal oxygen cannula as claimed in claim 2, characterized in that: The upper end surface of the connecting piece (4) is recessed downward to form two symmetrically arranged air outlet passages (43), and the lower end surface of the connecting piece (4) is recessed upward to form two symmetrically arranged air inlet passages (44), wherein the air inlet passages (44) are connected to the mixed air chamber (41), and the air outlet passages are connected to the exhaust air chamber (42).
4. A dual-channel nasal oxygen cannula as claimed in claim 3, characterized in that: The lower ends of the nasal oxygen tube 1 (1) and the nasal oxygen tube 2 (2) are respectively plugged into the two air outlet channels (43) above the connecting piece (4), and the connecting air tube 2 (6) and the connecting air tube 1 (5) are respectively plugged into the two air inlet channels (44) below the connecting piece (4).
5. A dual-channel nasal oxygen cannula as claimed in claim 2, characterized in that: The upper surface of the mixing tube (7) does not contact the top of the exhaust air cavity (42), and the lower surface of the mixing tube (7) does not contact the bottom of the mixing air cavity (41), and there is a distance of 2-3 cm between the two.
6. A dual-channel nasal oxygen cannula as claimed in claim 2, characterized in that: The mixing tube (7) has mixing passages (71) formed through the upper and lower ends thereof, and the exhaust air cavity (42) and the mixing air cavity (41) are connected to each other via the mixing passage (71).
7. A dual-channel nasal oxygen cannula as claimed in claim 6, characterized in that: The inner wall of the mixing channel (71) is provided with a spiral groove (72) in a spiral structure, the top of the spiral groove (72) is not connected to the outside, and the bottom end of the spiral groove (72) is connected to the bottom end of the mixing pipe (7).
8. A dual-channel nasal oxygen cannula as claimed in claim 3, characterized in that: The bottom edge of the mixing channel (71) of the mixing tube (7) is chamfered to form a guide arc surface (73), and the lower end of the guide arc surface (73) is located above the two air inlet channels (44).