An oxygen inhalation device for infants
By designing an oxygen inhalation device with a nasal cannula spacing of 1-1.2cm for infants and young children, and combining it with the installation structure, the difficulties in fixing the nasal oxygen cannula and the problem of compression were solved, achieving stable oxygen inhalation effect and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河北中石油中心医院
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-24
AI Technical Summary
The nasal plugs of existing nasal oxygen tubes have too large a spacing, making it difficult to fix them in place when used by infants and young children. This can easily cause the tubes to shift, affecting the oxygen delivery effect and potentially leading to mucosal congestion and secretion retention.
An oxygen inhalation device suitable for infants and young children has been designed. The nasal cannula spacing is 1-1.2cm. The installation structure includes an installation nut, a fixing ring, and a sealing ring. The nasal oxygen tube is fixed to the oxygen delivery tube by a threaded connection. The nasal cannula matches the infant's nostril to avoid displacement and compression.
This design achieves a stable fit between the nasal cannula and the infant's nostrils, preventing displacement and detachment, improving the reliability of oxygen inhalation, reducing the risk of local pressure, and ensuring the safety and effectiveness of treatment.
Smart Images

Figure CN224540740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nasal oxygen tube technology, specifically to an oxygen inhalation device suitable for infants and young children. Background Technology
[0002] A nasal oxygen cannula is a medical device that delivers oxygen through the nasal cavity, belonging to the category of oxygen therapy equipment. The core function of a nasal oxygen cannula is to deliver oxygen from an external oxygen source (such as an oxygen concentrator or oxygen cylinder) to the respiratory tract through the nasal plug to improve hypoxia. Nasal oxygen cannulas are typically made of medical-grade materials and come in two types: disposable and reusable (requiring strict sterilization). Their design prioritizes comfort and safety, avoiding irritation or pressure on the nasal mucosa.
[0003] Clinically used nasal oxygen cannulas are primarily designed based on the anatomy of adults or children, with a standardized spacing of 2.5-3.0 cm between the two nasal plugs. However, this universal design has limitations when applied to specific patient groups, especially infants and young children. Specifically, the nasal cavity structure of infants and young children varies; their anteroposterior diameter is only about 1.9 cm, and the average distance between their nostrils is only 1.1 cm. Furthermore, their nasal mucosa is delicate, and the alar cartilage provides weak support. In contrast, the spacing between the two nasal plugs in existing nasal oxygen cannulas exceeds the actual needs of infants and young children by 100%-150%, leading to the following problems in clinical use: due to the excessive spacing, the plugs are difficult to fix and prone to displacement (effective placement time less than 15 minutes), requiring frequent adjustments by medical staff, severely affecting the continuous oxygen delivery effect; additionally, the structural mismatch causes abnormal compression of the nasal alar tissue by the plugs, potentially leading to mucosal congestion, epidermal damage, and a 30%-40% reduction in the frequency of nasal mucosal ciliary movement, thereby increasing the risk of secretion retention.
[0004] To address the aforementioned issues, the current method used by medical staff involves obtaining suitable connecting tubes for infants and young children (nasal plugs that match both nostrils) and manually modifying them for use. The specific procedure involves first cutting the existing connecting tube (including the mismatched nasal plugs) from the oxygen delivery tube. Then, medical cotton is wrapped around the cut end of the oxygen delivery tube to enhance the seal. Finally, the two ends of the connecting tube (with nasal plugs that match both nostrils) are fitted onto the modified oxygen delivery tube. However, this manually modified nasal oxygen tube is time-consuming (approximately 3-5 minutes per modification), and the sealing of the connection depends on manual precision.
[0005] Therefore, how to design an oxygen inhalation device suitable for infants and young children is a technical problem that has not yet been solved in the existing technology. Utility Model Content
[0006] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects of the prior art, such as the excessively large spacing between the nasal tube and the nasal plug, which leads to difficulty in fixing, easy displacement, and the need for frequent adjustments, thus affecting the oxygen delivery effect; in addition, the mismatched structure will excessively compress the nasal wings, causing mucosal congestion, reducing the frequency of ciliary movement, and increasing the risk of secretion retention. Thus, this utility model provides an oxygen inhalation device suitable for infants and young children.
[0007] Therefore, this utility model provides an oxygen inhalation device suitable for infants and young children, comprising: The main body is hollow and open at both ends. Two nasal tubes are provided on the outer wall. The two nasal tubes are respectively provided with air supply holes that communicate with the inner cavity of the main body. The distance between the two nasal tubes is suitable for infants and young children. The mounting structure is adapted to detachably mount the main body onto the oxygen delivery pipe.
[0008] As a preferred embodiment, the distance between the two nasal tubes is 1-1.2 cm.
[0009] As a preferred embodiment, the length of the nasal plug tube is 1.8-2 cm.
[0010] As a preferred embodiment, the free end of the nasal plug tube is spherical.
[0011] As a preferred embodiment, both ends of the main body are detachably mounted on the oxygen delivery pipe via the mounting structure.
[0012] As a preferred embodiment, the mounting structure includes: The mounting nut is hollow and open at both ends, suitable for being fitted onto the oxygen delivery tube, and can be installed at one end of the main body component in a way that allows it to move left and right. A retaining ring with a break is installed between the mounting nut and the main body. When compressed, it can retract inward to hold and fix the oxygen delivery tube tightly. A sealing ring is installed between the fixing ring and the main body component, and can elastically deform to seal and fix the oxygen delivery pipe when compressed. Rotating the mounting nut inward can compress the retaining ring and the sealing ring, thereby fixing the oxygen delivery tube and securing it to the main body.
[0013] As a preferred embodiment, a push ring is also included, installed between the fixed ring and the sealing ring, capable of transmitting the mutual compressive force between the fixed ring and the sealing ring.
[0014] As a preferred embodiment, the inner wall of the mounting nut is formed with an annular first limiting slope, and the fixing ring has an annular first pressing slope; the inner wall of the main body is formed with an annular second limiting slope, and the sealing ring has an annular second pressing slope; when the mounting nut is rotated inward, the first limiting slope abuts against the first pressing slope, and the second limiting slope abuts against the second pressing slope. Through the push ring, the mutual pressing force is transmitted, which can cause the fixing ring and the sealing ring to contract inward, thereby fixing the oxygen supply tube.
[0015] As a preferred embodiment, the inner wall of the mounting nut is provided with internal threads, and the outer wall of one end of the main body is provided with external threads. The mounting nut is screwed to the main body, thereby allowing it to rotate inward to compress the fixing ring and the sealing ring, thereby fixing the oxygen supply tube.
[0016] As a preferred embodiment, the outer wall of the mounting nut is provided with anti-slip texture.
[0017] The technical solution provided by this utility model has the following advantages: This utility model is applicable to an oxygen inhalation device for infants and young children, including a main body and an installation structure; wherein, the main body is hollow and has openings at both ends, and two nasal tubes are provided on the outer wall, and the two nasal tubes are respectively provided with air delivery holes that communicate with the inner cavity of the main body, and the distance between the two nasal tubes is suitable for infants and young children; the installation structure is suitable for detachably installing the main body on the oxygen delivery tube.
[0018] When infants and young children require nasal cannula oxygen therapy, standard-sized nasal cannulas should be appropriately modified first. The specific steps are as follows: cut off the nasal plug portion at the front end of the nasal cannula; after cutting, insert the oxygen delivery tubes on both sides of the main body and secure them using the mounting structure to prevent loosening during oxygen delivery; after installation, gently insert the nasal plug into the infant's nostrils, ensuring an appropriate insertion depth, generally not exceeding 1.9 cm; during oxygen therapy, closely observe the infant's breathing and nasal skin condition to ensure effective oxygenation and avoid local pressure. This invention is suitable for oxygen therapy devices for infants and young children, where the distance between the two nasal plugs matches the distance between the infant's nostrils; therefore, the nasal plugs will not shift or fall off during oxygen therapy, thus ensuring a continuous and stable oxygen delivery effect. Furthermore, because it conforms to the physiological structure of the infant's nasal cavity, it avoids pressure on the delicate nasal tissues, improving the reliability of treatment and reducing the risk of local discomfort and complications. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.
[0020] Figure 1 This is a schematic diagram of the overall structure of the oxygen inhalation device for infants and young children according to this utility model.
[0021] Figure 2 yes Figure 1 A schematic diagram of the explosion structure.
[0022] Figure 3 yes Figure 2 A sectional view.
[0023] Reference numerals: 1. Main body; 11. Nose plug tube; 12. Air inlet; 2. Mounting nut; 21. Fixing ring; 22. Sealing ring; 3. Pushing ring; 4. First limiting inclined surface; 41. First extrusion inclined surface; 42. Second limiting inclined surface; 43. Second extrusion inclined surface. Detailed Implementation
[0024] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.
[0025] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.
[0026] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.
[0027] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Example
[0028] This embodiment provides an oxygen inhalation device suitable for infants and young children, such as... Figure 1-3 As shown, it includes: a main body 1 and an installation structure; wherein, the main body 1 is hollow and has openings at both ends, and two nasal tubes 11 are provided on the outer wall, and the two nasal tubes 11 are respectively provided with air delivery holes 12 communicating with the inner cavity of the main body 1, and the distance between the two nasal tubes 11 is suitable for infants and young children; the installation structure is suitable for detachably installing the main body 1 on the oxygen delivery tube.
[0029] When infants and young children require nasal cannula oxygen therapy, standard-sized nasal cannulas should be appropriately modified first. The specific steps are as follows: cut off the nasal plug portion at the front end of the nasal cannula; after cutting, insert the oxygen delivery tubes on both sides of the main body 1 and secure them using the mounting structure to prevent loosening during oxygen delivery; after installation, gently insert the nasal plug tube 11 into the infant's nostril, ensuring an appropriate insertion depth, typically not exceeding 1.9 cm; during oxygen delivery, closely observe the infant's breathing and nasal skin condition to ensure effective oxygenation and avoid local pressure. This embodiment is suitable for oxygen delivery devices for infants and young children, where the distance between the two nasal plug tubes 11 matches the distance between the infant's two nostrils; therefore, during oxygen delivery, the nasal plug tubes 11 will not shift or fall off, thus ensuring a continuous and stable oxygen delivery effect. Furthermore, because it conforms to the physiological structure of the infant's nasal cavity, it avoids pressure on the delicate nasal tissues, improving the reliability of treatment and reducing the risk of local discomfort and complications.
[0030] The distance between the two nasal cannulas 11 is 1-1.2 cm. The average distance between the two nostrils of infants and young children is 1.1 cm, which matches the two nasal cannulas 11. They can fit and be fixed in place during use without shifting or falling off, thus ensuring the oxygen inhalation effect.
[0031] The length of the nasal plug tube 11 is 1.8-2cm. The anteroposterior diameter of an infant's nasal cavity is approximately 1.9cm. When using it on an infant, pay attention to the insertion depth to avoid damaging the nasal cavity, nasal mucosa, etc.
[0032] The free end of the nasal cannula 11 is spherical. The spherical design improves comfort during use and is less likely to cause discomfort even after prolonged use; in addition, the spherical shape helps to better fit the nasal cavity, reduce gas leakage, and ensure the oxygen inhalation effect.
[0033] Both ends of the main body 1 are detachably mounted on the oxygen delivery pipe via the mounting structure.
[0034] like Figure 2 As shown, the installation structure includes an installation nut 2, a fixing ring 21, and a sealing ring 22. The installation nut 2 is hollow and open at both ends, suitable for being fitted onto the oxygen delivery tube, and can be moved left and right at one end of the main body 1. The fixing ring 21 has a break and is installed between the installation nut 2 and the main body 1. When compressed, it can contract inward to tightly secure the oxygen delivery tube. The sealing ring 22 is installed between the fixing ring 21 and the main body 1. When compressed, it can elastically deform to seal and secure the oxygen delivery tube. Rotating the installation nut 2 inward can compress the fixing ring 21 and the sealing ring 22, thereby fixing the oxygen delivery tube and securing it to the main body 1.
[0035] It also includes a push ring 3, which is installed between the fixed ring 21 and the sealing ring 22 and can transmit the mutual compressive force between the fixed ring 21 and the sealing ring 22.
[0036] like Figure 3 As shown, the inner wall of the mounting nut 2 is formed with an annular first limiting inclined surface 4, and the fixing ring 21 has an annular first extrusion inclined surface 41; the inner wall of the main body 1 is formed with an annular second limiting inclined surface 42, and the sealing ring 22 has an annular second extrusion inclined surface 43; when the mounting nut 2 is rotated inward, the first limiting inclined surface 4 abuts against the first extrusion inclined surface 41, and the second limiting inclined surface 42 abuts against the second extrusion inclined surface 43. Through the push ring 3, the mutual extrusion force is transmitted, which can cause the fixing ring 21 and the sealing ring 22 to contract inward, thereby fixing the oxygen supply tube.
[0037] The inner wall of the mounting nut 2 is provided with internal threads, and the outer wall of one end of the main body 1 is provided with external threads. The mounting nut 2 is screwed to the main body 1, thereby allowing it to rotate inward to compress the fixing ring 21 and the sealing ring 22, thereby fixing the oxygen supply tube.
[0038] The outer wall of the mounting nut 2 is provided with anti-slip texture. The anti-slip texture increases friction, making it easier for the operator to operate.
[0039] This embodiment describes an oxygen therapy device suitable for infants and young children. The method of use is as follows: When an infant or young child needs nasal cannula oxygen therapy, a standard nasal cannula should be appropriately modified. The specific steps are as follows: Cut off the nasal plug portion at the front end of the nasal cannula. After cutting, insert the oxygen delivery tubes on both sides of the nasal cannula through the mounting nut 2, fixing ring 21, pushing ring 3, and sealing ring 22, respectively, into both sides of the main body 1. Then, rotate the mounting nut 2 inward to compress the fixing ring 21. The fixing ring 21 pushes the pushing ring 3 inward, and the pushing ring 3 compresses the sealing ring 22 inward. Under the action of the second limiting inclined surface 42 and the second compressing inclined surface 43, the sealing ring 22 pushes the pushing ring 3 in the opposite direction, and the pushing ring 3 compresses the fixing ring 21, thereby tightly sealing and fixing the oxygen delivery tube. After installation, insert the nasal plug tube 11 into the infant's nostril, ensuring the insertion depth is appropriate, usually not exceeding 1.9 cm. During oxygen therapy, closely observe the infant's breathing status and nasal skin condition to ensure the oxygen therapy effect and avoid local pressure.
[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.
Claims
1. An oxygen inhalation device suitable for infants and young children, characterized in that, include: The main body (1) is hollow and has openings at both ends. Two nasal tubes (11) are provided on the outer wall. The two nasal tubes (11) are respectively provided with air supply holes (12) that communicate with the inner cavity of the main body (1). The distance between the two nasal tubes (11) is suitable for infants and young children. The mounting structure is adapted to detachably mount the main body (1) onto the oxygen delivery pipe; The mounting structure includes: The mounting nut (2) is hollow and open at both ends, suitable for being fitted onto the oxygen supply pipe, and can be installed on one end of the main body (1) in a way that allows it to move left and right. The fixing ring (21) has a break and is installed between the mounting nut (2) and the main body (1). When compressed, it can contract inward to hold and fix the oxygen delivery tube tightly. A sealing ring (22) is installed between the fixing ring (21) and the main body (1), and can elastically deform to seal and fix the oxygen delivery pipe when compressed; Rotating the mounting nut (2) inward can compress the fixing ring (21) and the sealing ring (22), thereby fixing the oxygen delivery tube and fixing the oxygen delivery tube together with the main body (1).
2. The oxygen inhalation device for infants and young children according to claim 1, characterized in that: The distance between the two nasal plugs (11) is 1-1.2 cm.
3. The oxygen inhalation device for infants and young children according to claim 1, characterized in that: The length of the nasal plug tube (11) is 1.8-2cm.
4. The oxygen inhalation device for infants and young children according to claim 1, characterized in that: The free end of the nasal plug tube (11) is spherical.
5. The oxygen inhalation device for infants and young children according to claim 1, characterized in that: Both ends of the main body (1) are detachably mounted on the oxygen delivery pipe via the mounting structure.
6. The oxygen inhalation device for infants and young children according to claim 1, characterized in that: It also includes a push ring (3), which is installed between the fixed ring (21) and the sealing ring (22) and can transmit the mutual compressive force between the fixed ring (21) and the sealing ring (22).
7. The oxygen inhalation device for infants and young children according to claim 6, characterized in that: The inner wall of the mounting nut (2) is formed with an annular first limiting slope (4), and the fixing ring (21) has an annular first extrusion slope (41); the inner wall of the main body (1) is formed with an annular second limiting slope (42), and the sealing ring (22) has an annular second extrusion slope (43); when the mounting nut (2) rotates inward, the first limiting slope (4) abuts against the first extrusion slope (41), and the second limiting slope (42) abuts against the second extrusion slope (43). Through the push ring (3), the mutual extrusion force is transmitted, which can cause the fixing ring (21) and the sealing ring (22) to contract inward and fix the oxygen supply pipe.
8. The oxygen inhalation device for infants and young children according to claim 1, characterized in that: The inner wall of the mounting nut (2) is provided with an internal thread, and the outer wall of one end of the main body (1) is provided with an external thread. The mounting nut (2) is screwed to the main body (1), thereby enabling the fixing ring (21) and the sealing ring (22) to be rotated inward and squeezed, thereby fixing the oxygen supply pipe.
9. The oxygen inhalation device for infants and young children according to claim 8, characterized in that: The outer wall of the mounting nut (2) is provided with anti-slip texture.