Disposable bottle-free self-humidifying nasal oxygen cannula

Abstract

The utility model relates to the technical field of medical instruments, and discloses a disposable bottle-free self-humidifying nasal oxygen cannula which comprises a humidifying material arranged in a humidifying cavity. The pressing plate is slidably connected to the inner side wall of the humidifying cavity, and the pressing plate is arranged on the right side of the humidifying material; one end of the sliding rod is fixedly connected to the right side wall of the pressing plate, and the other end of the sliding rod penetrates through and extends out of the humidifying cavity. When the sliding rod is pulled out, the sliding rod is pushed into the humidifying cavity, the clamping protrusions are pressed to deform and slide into the clamping grooves, at the moment, the sliding rod compresses the humidifying material, the pore volume of the humidifying material is reduced, free water is squeezed back into the humidifying material, surface moisture is reduced, the evaporation capacity is reduced, and the oxygen humidifying degree is reduced; the fiber layer in the humidifying material extends from a compressed state to a fluffy state, the pore volume is increased, free water stored inside migrates to the surface due to the action of gravity and fiber tension, moisture attached to the fiber surface and the surface of the humidifying material is increased, the evaporation capacity is increased when the humidifying material makes contact with oxygen, and the oxygen humidifying degree is increased.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a disposable bottleless self-humidifying nasal oxygen tube. Background Technology

[0002] Nasal oxygen cannulas are a commonly used medical device. A nasal oxygen cannulas consists of a tube body with a nasal cannula that connects to the tube. During use, the nasal oxygen cannulas are connected to a gas source via the machine end. Oxygen is delivered through the tube body to patients who have lost the ability to breathe independently via the nasal cavity. Because the human respiratory tract has strict requirements for the humidity of inhaled air, direct inhalation of dry oxygen can cause a series of physiological discomforts or even damage. Therefore, nasal oxygen cannulas are often equipped with humidification bottles. Traditional humidification bottles require daily water changes and disinfection, and improper operation can easily lead to bacterial growth. Therefore, disposable bottleless self-humidifying nasal oxygen cannulas are cleaner and more hygienic.

[0003] The existing humidification structure of nasal oxygen cannulas does not facilitate the adjustment of humidification levels, but the humidification needs of children, the elderly, patients in dry areas, or people with respiratory diseases vary greatly. A fixed humidification level cannot meet individual needs, which may result in some patients being under-humidified while others are over-humidified. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a disposable bottleless self-humidifying nasal oxygen tube, which has the advantage of easy adjustment of humidification level. It solves the problem that the humidification structure of existing nasal oxygen tubes is not easy to adjust the humidification level, and different patients have different requirements for oxygen humidity, thus making it difficult to meet different humidification needs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a disposable bottleless self-humidifying nasal oxygen cannula, comprising a main body assembly, wherein the main body assembly includes:

[0008] The humidification chamber has ventilation pipes connected to both ends, with one ventilation pipe connected to an external oxygen generator.

[0009] A nasal oxygen cannula is installed on the ventilation tube on the other side;

[0010] The humidification chamber is provided with an adjustment component, which includes:

[0011] A humidifying material is disposed inside the humidification chamber;

[0012] A pressure plate is slidably connected to the inner wall of the humidification chamber, and the pressure plate is located on the right side of the humidification material;

[0013] A sliding rod, one end of which is fixedly connected to the right side wall of the pressure plate, and the other end of which passes through and extends to the outside of the humidification chamber;

[0014] A fixing ring is fixedly connected to the inner wall of the humidification chamber;

[0015] A through groove is formed on the fixed ring, and the slide rod passes through the through groove;

[0016] The protrusion is fixedly connected to the inner sidewall of the through groove;

[0017] The slots are symmetrically formed on the outer wall of the slide rod.

[0018] Preferably, a sealing ring is provided on the humidification chamber, and the slide rod is slidably connected to the middle of the sealing ring.

[0019] Preferably, the slot has an arc-shaped edge.

[0020] Preferably, the slide bar is symmetrically arranged in two places, and a pressure ring is fixedly connected to one end of the slide bar located outside the humidification chamber.

[0021] Preferably, the outer wall of the pressure ring is provided with anti-slip texture.

[0022] Preferably, the outer wall of the humidification chamber is provided with a transparent observation window.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, this utility model provides a disposable bottleless self-humidifying nasal oxygen cannula, which has the following beneficial effects:

[0025] This nasal oxygen cannula offers the advantage of easily adjustable humidification. Pushing the slider into the humidification chamber causes the locking protrusion to deform under pressure and slide into the slot. At this point, the slider compresses the humidification material, reducing its pore volume and forcing free water back into the material. This reduces surface moisture, decreases evaporation, and lowers humidification efficiency. When the slider is pulled out, the fiber layer in the humidification material expands from a compressed state to a fluffy state, increasing the pore volume. The free water stored inside migrates to the surface due to gravity and fiber tension, increasing the moisture adhering to the fiber and material surfaces. This leads to increased evaporation upon contact with oxygen, improving humidification efficiency. This solution addresses the problem of existing nasal oxygen cannulas having humidification structures that are difficult to adjust, while different patients have varying humidity requirements, thus failing to meet diverse humidification needs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0028] Figure 3 This is a front view cross-sectional structural diagram of the humidification chamber in this utility model;

[0029] Figure 4 This is a schematic diagram of the card protrusion and card slot structure in this utility model.

[0030] In the picture:

[0031] 1. Main components; 11. Humidification chamber; 12. Ventilation tube; 13. Nasal oxygen tube;

[0032] 2. Adjustment component; 21. Wetting material; 22. Pressure plate; 23. Slide rod; 24. Retaining ring; 25. Through groove; 26. Locking protrusion; 27. Locking groove;

[0033] 3. Sealing ring; 4. Pressure ring; 5. Anti-slip texture; 6. Transparent observation window. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] See Figure 1-4 A disposable bottleless self-humidifying nasal oxygen cannula includes a main component 1, which comprises: a humidification chamber 11, both ends of which are connected to ventilation tubes 12, one of which is connected to an external oxygen concentrator; a nasal oxygen cannula 13, disposed on the other ventilation tube 12; and an adjustment component 2 disposed on the humidification chamber 11, which includes: a humidification material 21 disposed inside the humidification chamber 11; and a pressure plate 22 slidably connected to the inner wall of the humidification chamber 11. The pressure plate 22 is disposed on the right side of the humidifying material 21; a slide rod 23, one end of which is fixedly connected to the right side wall of the pressure plate 22, and the other end of the slide rod 23 extends through and to the outside of the humidification chamber 11; a fixing ring 24 is fixedly connected to the inner side wall of the humidification chamber 11; a through groove 25 is formed on the fixing ring 24, and the slide rod 23 passes through the through groove 25; a locking protrusion 26 is fixedly connected to the inner side wall of the through groove 25; and locking grooves 27 are symmetrically formed on the outer side wall of the slide rod 23. A sealing ring 3 is provided on the humidification chamber 11, and the slide rod 23 is slidably connected to the middle of the sealing ring 3. The locking grooves 27 have arc-shaped edges.

[0037] During use, the humidifying material 21 is a highly absorbent material, such as cotton fiber, sodium polyacrylate fiber, or sponge fiber, with a porous structure. It can absorb moisture through capillary action and store it in its internal pores. The ventilation tube 12 introduces oxygen from the oxygen generator into the humidification chamber 11. As the oxygen passes through the humidifying material 21, the moisture evaporates and mixes into the airflow, making the oxygen humidified. The humidified oxygen is then introduced into the nasal cannula 13 for easy use by the patient. When the humidification level needs to be adjusted, the operator pushes the slide bar 23 into the humidification chamber 11. As the slide bar 23 is pushed, the locking protrusion 26 deforms under pressure and slides into the locking groove 27. Once in place, the locking protrusion 26 springs open and locks against the inner wall of the locking groove 27, fixing the setting. At this time, the slide bar 23 compresses the humidification material 21, reducing the pore volume of the humidification material 21. Free water is squeezed back into the humidification material 21, reducing surface moisture, decreasing evaporation, and lowering humidification efficiency, thus reducing the oxygen humidification level. Furthermore, the humidity can be continuously varied by changing the movement distance of the slide bar 23. When the slide bar 23 is pulled outwards, the fiber layer in the humidification material 21 expands from a compressed state to a fluffy state, increasing the pore volume. The free water stored inside migrates to the surface due to gravity and fiber tension, increasing the moisture adhering to the fiber surface and the surface of the humidification material. This increases evaporation upon contact with oxygen, improving humidification efficiency and thus enhancing the oxygen humidification level. This allows for easy adjustment of the humidification level according to the patient's condition. When the slide rod 23 moves, it slides inside the sealing ring 3. The sealing ring 3 achieves a sealing effect on the humidification chamber 11 when the slide rod 23 moves, preventing oxygen leakage. When the slide rod 23 drives the slot 27 to move towards the protrusion 26, the arc-shaped surface of the edge of the slot 27 can guide the slot 27 to "climb" into the limit position, reducing vertical impact force. When it moves out, the slot 27 slides along the arc-shaped surface, thereby reducing the operating force.

[0038] Example 2

[0039] An auxiliary function has been added based on Embodiment 1.

[0040] See Figure 1-4 The slide rod 23 is symmetrically arranged in two places, and a pressure ring 4 is fixedly connected to one end of the slide rod 23 located outside the humidification chamber 11. The outer wall of the pressure ring 4 is provided with anti-slip texture 5. A transparent observation window 6 is provided on the outer wall of the humidification chamber 11.

[0041] The two sliding rods 23 improve the uniformity of force applied to the pressure plate 22, and medical staff can simultaneously control the movement of the two sliding rods 23 through the pressure ring 4. The anti-slip texture 5 on the outside of the pressure ring 4 increases the friction between the hand and the pressure ring 4 when the medical staff presses or pulls it out, preventing slippage and facilitating quick adjustment of the humidification level. The transparent observation window 6 on the outside of the humidification chamber 11 allows medical staff to observe the movement position of the slot 27, thus easily knowing the current humidification level.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disposable bottleless self-humidifying nasal oxygen cannula, comprising a main component (1), said main component (1) comprising: Humidification chamber (11), both ends of which are connected to ventilation pipes (12), one of which is connected to an external oxygen generator; Nasal oxygen cannula (13) is disposed on the ventilation tube (12) on the other side; The feature is that: an adjustment component (2) is provided on the humidification chamber (11), and the adjustment component (2) includes: A humidifying material (21) is disposed inside the humidification chamber (11); A pressure plate (22) is slidably connected to the inner wall of the humidification chamber (11), and the pressure plate (22) is located on the right side of the humidification material (21); The slide rod (23) is fixedly connected at one end to the right side wall of the pressure plate (22), and the other end of the slide rod (23) extends through and to the outside of the humidification chamber (11); A fixing ring (24) is fixedly connected to the inner wall of the humidification chamber (11); A through groove (25) is formed on the fixing ring (24), and the slide rod (23) passes through the through groove (25); The protrusion (26) is fixedly connected to the inner wall of the through groove (25); The slots (27) are symmetrically opened on the outer side wall of the slide bar (23).

2. The disposable bottleless self-humidifying nasal oxygen cannula according to claim 1, characterized in that: A sealing ring (3) is provided on the humidification chamber (11), and the slide rod (23) is slidably connected to the middle of the sealing ring (3).

3. The disposable bottleless self-humidifying nasal oxygen cannula according to claim 2, characterized in that: The slot (27) has an arc-shaped edge.

4. The disposable bottleless self-humidifying nasal oxygen cannula according to claim 3, characterized in that: The slide bar (23) is symmetrically arranged in two places, and a pressure ring (4) is fixedly connected to one end of the slide bar (23) located outside the humidification chamber (11).

5. The disposable bottleless self-humidifying nasal oxygen cannula according to claim 4, characterized in that: The outer wall of the pressure ring (4) is provided with anti-slip texture (5).

6. The disposable bottleless self-humidifying nasal oxygen cannula according to claim 5, characterized in that: A transparent observation window (6) is provided on the outer wall of the humidification chamber (11).

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