Multifunctional saturated oxygen uptake device

By integrating buoy-type, primary, and saturation oxygenation modes into a multi-functional oxygenation device, the problem of existing devices only being able to operate in a single mode is solved. This enables multi-functional switching, prevents cross-infection, extends the life of the flow meter, facilitates timing and transportation, and improves practicality.

CN223817981UActive Publication Date: 2026-01-23GUANGXI OBERGS HEALTH TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422909489.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2026-01-23
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Existing oxygen therapy devices typically only offer one oxygen therapy method, which can easily lead to cross-infection when multiple patients take turns using them. Flow meters are also prone to damage from prolonged pressure and are inconvenient for timing and transport, making them impractical.

Method used

A multifunctional saturated oxygen inhalation device was designed, integrating three modes: buoy-type oxygen inhalation, primary oxygen inhalation, and saturated oxygen inhalation. It avoids cross-infection through a one-way valve, optimizes component connections to prevent damage to the flow meter, and is equipped with a timer and a carrying handle for easy timing and transportation.

Benefits of technology

It enables switching or simultaneous use of three oxygen inhalation methods, preventing cross-infection, extending the service life of the flow meter, facilitating timing and relocation, and improving practicality.

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Abstract

The utility model belongs to the technical field of medical instruments and discloses a multifunctional saturated oxygen inhalation device which comprises a shell, an air source connector, a main switch, an air storage tank, a pressure gauge, a float type oxygen inhalation connector, a first-stage flow control switch, a first-stage flow meter, a first-stage oxygen inhalation connector, a saturated flow control switch, a saturated flow meter and a saturated oxygen inhalation connector. The oxygen inhalation device further comprises a float type oxygen inhalation one-way valve, a primary oxygen inhalation one-way valve, a saturated oxygen inhalation control valve and a timer. Compared with the prior art, the oxygen uptake device solves the problem that an existing oxygen uptake device can only provide one oxygen uptake mode, and the three oxygen uptake modes of float type oxygen uptake, primary oxygen uptake and saturated oxygen uptake can be switched or used at the same time; meanwhile, through the optimized design of the structure and the connection relation of all parts, the defects that cross infection is easily caused when multiple patients use the flow meter in turn, the flow meter is easily damaged after long-term compression, timing and carrying are inconvenient and the like are overcome, and the practicability is better.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an oxygen inhalation device that integrates multiple functions such as buoy-type oxygen inhalation, primary oxygen inhalation, and saturation oxygen inhalation. Background Technology

[0002] An oxygen inhaler, also known as an oxygen delivery device, is a medical device used to measure oxygen flow. Its main function is to deliver oxygen to emergency patients and to patients with hypoxia at an appropriate flow rate. There are generally three types of oxygen delivery methods: float-type, primary oxygen delivery, and saturation oxygen delivery. Different methods can be selected based on the individual's requirements for oxygen pressure, flow rate, and whether a sealed environment is needed. Existing oxygen delivery devices are usually quite basic, with only one interface for one oxygen delivery method. In actual clinical use, selecting the appropriate oxygen delivery method requires changing the device, causing inconvenience for both doctors and patients.

[0003] To address the aforementioned shortcomings, Chinese patent CN 211675759 U proposes a multifunctional saturation oxygen inhaler, comprising a housing, an air source interface, a main switch, an air tank, a primary switch, a primary flow meter, a primary oxygen inhalation interface, a saturation switch, a saturation flow meter, a saturation oxygen inhalation interface, a float-type oxygen inhalation interface, and a pressure gauge. The air source interface is mounted on the side of the housing. The main switch, pressure gauge, primary switch, primary flow meter, primary oxygen inhalation interface, saturation switch, saturation flow meter, and saturation oxygen inhalation interface are embedded or fixed on the front of the housing. The float-type oxygen inhalation interface is mounted on the side of the housing. The air tank is housed inside the housing. The air source interface is connected via pipes to one end of the main switch and the pressure gauge, respectively. The other end of the main switch is connected to the air inlet of the air tank. The air outlet of the air tank is connected via pipes to the primary oxygen inhalation interface, the saturation oxygen inhalation interface, and the float-type oxygen inhalation interface, respectively. A primary flow meter and a primary switch are installed between the air outlet of the air tank and the primary oxygen inhalation interface, and a saturation flow meter and a saturation switch are installed between the air outlet of the air tank and the saturation oxygen inhalation interface. It integrates three oxygen inhalation methods into one device, solving the problem that existing oxygen inhalation devices can only provide one oxygen inhalation method.

[0004] However, the aforementioned multi-functional saturation oxygen inhaler still has many problems, such as the risk of cross-infection when multiple patients take turns using it, the risk of damage to the flow meter due to long-term pressure, and the inconvenience of timing and transportation, making it impractical. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a multifunctional saturation oxygen inhalation device that can switch between or use three oxygen inhalation modes: buoy-type oxygen inhalation, primary oxygen inhalation, and saturation oxygen inhalation simultaneously. This device can effectively solve problems such as cross-infection when multiple patients take turns using it, damage to the flow meter due to long-term pressure, and inconvenience in timing and transportation, making it more practical.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multifunctional saturated oxygen inhalation device includes a shell, a gas source interface, a main switch, a gas storage tank, a pressure gauge, a float-type oxygen inhalation interface, a primary flow control switch, a primary flow meter, a primary oxygen inhalation interface, a saturated flow control switch, a saturated flow meter, and a saturated oxygen inhalation interface. The gas source interface outlet is connected to one end of the main switch via a pipe, and the other end of the main switch is connected to the gas inlet of the gas storage tank and the inlet of the float-type oxygen inhalation interface via pipes. The pressure gauge is connected to the gas storage tank, and the gas storage tank outlet is connected to the inlet of the primary oxygen inhalation interface and the inlet of the saturated oxygen inhalation interface via pipes. A primary flow control switch and a primary flow meter are also connected between the gas storage tank and the primary oxygen inhalation interface, and a saturated flow control switch and a saturated flow meter are also connected between the gas storage tank and the saturated oxygen inhalation interface. The device also includes a float-type oxygen inhalation one-way valve and a primary oxygen inhalation one-way valve. The float-type oxygen inhalation one-way valve is connected between the main switch and the float-type oxygen inhalation interface, and the primary oxygen inhalation one-way valve is connected between the gas storage tank and the primary oxygen inhalation interface.

[0008] In the above technical solution, the outer shell mainly serves to support the external components and protect the internal components. The gas storage tank stores a certain amount of oxygen to ensure the realization of primary oxygen intake and saturation oxygen intake. The pressure gauge is used to intuitively and in real-time monitor the oxygen pressure in the gas storage tank. The primary flow meter and saturation flow meter are used to measure the oxygen flow rate. The gas source interface, main switch, float-type oxygen intake check valve, and float-type oxygen intake interface constitute the oxygen flow path for float-type oxygen intake. The gas source interface, main switch, gas storage tank, primary flow control switch, primary flow meter, primary oxygen intake check valve, and primary oxygen intake interface constitute the oxygen flow path for primary oxygen intake. The gas source interface, main switch, gas storage tank, saturation flow control switch, saturation flow meter, and saturation oxygen intake interface constitute the oxygen flow path for saturation oxygen intake. Through the integrated design of the above three oxygen intake methods, the multifunctional saturation oxygen intake device can switch between float-type oxygen intake, primary oxygen intake, and saturation oxygen intake, and can also use two or even all three oxygen intake methods simultaneously. By adding a float-type oxygen inhalation one-way valve at the front end of the float-type oxygen inhalation interface and a first-level oxygen inhalation one-way valve at the front end of the first-level oxygen inhalation interface, the problem of cross-infection caused by the patient's exhaled gas flowing back into the equipment pipeline during the alternating use can be avoided.

[0009] As a further explanation of the above-mentioned multifunctional saturated oxygen inhalation device, it also includes a saturated oxygen inhalation control valve, which is connected to the front end of the saturated oxygen inhalation interface.

[0010] Saturation oxygen therapy is a method of oxygen inhalation that simulates lung breathing. During exhalation, no oxygen flows out; the exhaled gas is discharged through a one-way tubing. During inhalation, nearly 100% pure oxygen is delivered in one breath. The saturation oxygen therapy control valve is a low-resistance breathing regulator. When the user inhales, the valve opens under the action of suction, allowing oxygen from the gas tank to flow out. When exhaling, the valve closes, achieving the effect of simulating lung breathing.

[0011] As a further explanation of the above-mentioned multifunctional saturated oxygen inhalation device, a timer is also included.

[0012] The timer can be a mechanical timer or an electronic timer. When the patient needs to inhale oxygen as needed according to the treatment plan, it can remind the patient of the oxygen inhalation time and avoid inhaling too little or too much oxygen.

[0013] As a further explanation of the above-mentioned multifunctional saturated oxygen inhalation device, the gas source interface, main switch, pressure gauge, float-type oxygen inhalation interface, primary flow control switch, primary flow meter, primary oxygen inhalation interface, saturated flow control switch, saturated flow meter, saturated oxygen inhalation interface, and timer are embedded or fixed on the outer casing, while the gas storage tank, float-type oxygen inhalation one-way valve, primary oxygen inhalation one-way valve, and saturated oxygen inhalation control valve are located inside the outer casing.

[0014] For aesthetic and harmonious design, the primary flow control switch, primary flow meter, and saturation flow control switch and saturation flow meter can be symmetrically arranged on the left and right sides of the front of the casing, respectively. The pressure gauge can be located in the center of the front of the casing. The primary oxygen inlet and saturation oxygen inlet can be located below the primary flow control switch and saturation flow control switch, respectively. The gas source inlet and float-type oxygen inlet can be located on the sides of the casing, respectively. The main switch and timer can be located in the center of the front of the casing or on the sides of the casing.

[0015] As a further explanation of the above-mentioned multifunctional saturated oxygen inhalation device, the primary flow control switch is located at the lower end of the primary flow meter, and the saturated flow control switch is located at the lower end of the saturated flow meter; the primary flow control switch, the primary flow meter, and the primary oxygen inhalation check valve are connected in sequence between the gas storage tank and the primary oxygen inhalation interface, and the saturated flow control switch, the saturated flow meter, and the saturated oxygen inhalation control valve are connected in sequence between the gas storage tank and the saturated oxygen inhalation interface.

[0016] The primary flow meter and saturation flow meter can be glass tubular rotor flow meters. In existing technology, the flow control switch is located at the top of the flow meter, and the flow meter and flow control switch are connected sequentially between the gas storage tank and the oxygen inhalation interface. When oxygen inhalation is finished and the flow control switch is closed, the pressure between the gas storage tank and the flow meter is balanced, causing the flow meter's internal pipe diameter to remain under high pressure for an extended period, which can easily lead to damage. The above optimized design prevents the primary flow meter and saturation flow meter's internal pipe diameter from remaining under high pressure when closed, avoiding damage and effectively extending the service life of the multifunctional saturation oxygen inhalation device.

[0017] As a further explanation of the aforementioned multifunctional saturation oxygen inhalation device, the timer is located on the front of the casing. For aesthetic reasons, the main switch can be located on the side of the casing. This design makes it easier for users to set and view the timer.

[0018] As a further explanation of the aforementioned multifunctional saturation oxygen inhalation device, a carrying handle is also included, located on the upper back of the outer casing. This design facilitates the user's manual transport of the device. When a longer distance needs to be traveled, the entire device can be placed on a mobile cart, which can then be pushed to the designated location, saving both time and effort.

[0019] Compared with existing technologies, this utility model solves the problem that existing oxygen inhalation devices can only provide one oxygen inhalation mode. It can switch between or use three oxygen inhalation modes: buoy-type oxygen inhalation, primary oxygen inhalation, and saturation oxygen inhalation simultaneously. At the same time, through the optimized design of the structure and the connection relationship of each component, it overcomes the defects such as easy cross-infection when multiple patients take turns using it, easy damage to the flow meter due to long-term pressure, and inconvenience in timing and transportation, making it more practical. Attached Figure Description

[0020] Figure 1 This is a front view of the multifunctional saturated oxygen inhalation device of this utility model.

[0021] Figure 2 This is a schematic diagram showing the component connections of the multifunctional saturated oxygen inhalation device of this utility model.

[0022] Figure 3 This is a schematic diagram of the back of the multifunctional saturated oxygen inhalation device of this utility model.

[0023] Attached diagram labels: 1-Includes outer casing, 2-Gas source interface, 3-Main switch, 4-Gas storage tank, 5-Pressure gauge, 6-Float-type oxygen inhalation interface, 7-First-stage flow control switch, 8-First-stage flow meter, 9-First-stage oxygen inhalation interface, 10-Saturation flow control switch, 11-Saturation flow meter, 12-Saturation oxygen inhalation interface, 13-Float-type oxygen inhalation check valve, 14-First-stage oxygen inhalation check valve, 15-Saturation oxygen inhalation control valve, 16-Timer, 17-Handheld trough. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings. Example

[0025] like Figure 1-3 The multifunctional saturated oxygen inhalation device shown includes a shell 1, a gas source interface 2, a main switch 3, a gas storage tank 4, a pressure gauge 5, a float-type oxygen inhalation interface 6, a primary flow control switch 7, a primary flow meter 8, a primary oxygen inhalation interface 9, a saturated flow control switch 10, a saturated flow meter 11, and a saturated oxygen inhalation interface 12. The gas source interface 2's outlet is connected to one end of the main switch 3 via a pipe, and the other end of the main switch 3 is connected to the inlet of the gas storage tank 4 and the inlet of the float-type oxygen inhalation interface 6 via pipes. The pressure gauge 5 is connected to the gas storage tank 4, and the outlet of the gas storage tank 4 is connected to the inlet of the primary oxygen inhalation interface 9 and the inlet of the saturated oxygen inhalation interface 12 via pipes. The primary flow control switch 7 and the primary flow meter 8 are also connected between the gas storage tank 4 and the primary oxygen inhalation interface 9, and the saturated flow meter 11 is also connected between the gas storage tank 4 and the saturated oxygen inhalation interface 12. The system includes a flow control switch 10, a saturation flow meter 11, a float-type oxygen inhalation check valve 13, a first-stage oxygen inhalation check valve 14, and a saturation oxygen inhalation control valve 15. The float-type oxygen inhalation check valve 13 is connected between the main switch 3 and the float-type oxygen inhalation interface 6, the first-stage oxygen inhalation check valve 14 is connected between the gas storage tank 4 and the first-stage oxygen inhalation interface 9, and the saturation oxygen inhalation control valve 15 is connected at the front end of the saturation oxygen inhalation interface 12. The system also includes a timer 16. The gas source interface 2, the main switch 3, the pressure gauge 5, the float-type oxygen inhalation interface 6, the first-stage flow control switch 7, the first-stage flow meter 8, the first-stage oxygen inhalation interface 9, the saturation flow control switch 10, the saturation flow meter 11, the saturation oxygen inhalation interface 12, and the timer 16 are embedded or fixed on the outer casing 1. The gas storage tank 4, the float-type oxygen inhalation check valve 13, the first-stage oxygen inhalation check valve 14, and the saturation oxygen inhalation control valve 15 are located inside the outer casing 1.

[0026] The multifunctional saturated oxygen inhalation device provided in this embodiment can switch between three oxygen inhalation modes: buoy-type oxygen inhalation, primary oxygen inhalation, and saturated oxygen inhalation.

[0027] When buoy-type oxygen inhalation is required, connect the oxygen supply source (such as an oxygen concentrator, large oxygen cylinder, or hospital central oxygen supply) delivery interface to the gas source interface 2, and connect the buoy-type oxygen inhaler to the buoy-type oxygen inhalation interface 6. Turn on the main switch 3 to use it. After oxygen inhalation, turn off the buoy-type oxygen inhaler switch and the main switch 3. The buoy-type oxygen inhalation interface 6 is mainly used for high-flow oxygen inhalation, usually used independently, and requires an external buoy humidification bottle. The buoy humidification bottle generally has a pressure indicator and flow control device, so there is no need to connect it to the gas storage tank 4 and pressure gauge 5.

[0028] When primary oxygen inhalation is required, connect the oxygen supply interface to the gas source interface 2, and connect the oxygen mask tube to the primary oxygen inhalation interface 9. Then, turn on the main switch 3 and the primary flow control switch 7, and observe and adjust the primary effect to be achieved through the primary flow meter 8. After oxygen inhalation is completed, remove the oxygen mask and turn off the main switch 3 and the primary flow control switch 7 in sequence.

[0029] When saturated oxygen inhalation is required, connect the oxygen supply delivery interface to the gas source interface 2, and connect the closed oxygen mask oxygen inhalation tube to the saturated oxygen inhalation interface 12. Then, turn on the main switch 3 and the saturated flow control switch 10, and observe and adjust the desired flow rate through the saturated flow meter 11. After oxygen inhalation, remove the oxygen mask and turn off the main switch 3 and the saturated flow control switch 10 in sequence.

[0030] During primary oxygen inhalation and saturation oxygen inhalation, the stability of the pressure gauge 5 is monitored to confirm whether there are any leaks in the pipeline system and whether there is sufficient oxygen to support oxygen inhalation. After oxygen inhalation is completed, the oxygen venting is turned off first. When the pressure gauge 5 reaches zero, the oxygen supply delivery connector is then disconnected. Otherwise, disconnecting the oxygen supply delivery connector when the pressure in the gas storage tank 4 is high may cause pressure to fly out and cause accidental injury.

[0031] The multifunctional saturated oxygen inhalation device provided in this embodiment can also realize the simultaneous use of two or even three oxygen inhalation methods. It is only necessary to operate according to the above three oxygen inhalation methods at the same time.

[0032] The multifunctional saturated oxygen therapy device provided in this embodiment innovatively optimizes the connection relationship of each component, making its structural layout more reasonable. Furthermore, the addition of a float-type oxygen inhalation one-way valve 13 at the front end of the float-type oxygen inhalation interface 6 and a first-stage oxygen inhalation one-way valve 14 at the front end of the first-stage oxygen inhalation interface 9 prevents the backflow of exhaled gas from the patient into the device's piping during alternating use, thus avoiding cross-infection. The timer 16 is either a mechanical or electronic timer, which serves to remind the patient of the oxygen inhalation time, ensuring the patient inhales oxygen as needed and in the correct dosage according to the treatment plan. Example

[0033] The only difference between this embodiment and Embodiment 1 is that the primary flow control switch 7 is located below the primary flow meter 8, and the saturation flow control switch 10 is located below the saturation flow meter 11. Furthermore, the primary flow control switch 7, the primary flow meter 8, and the primary oxygen inhalation check valve 14 are sequentially connected between the gas storage tank 4 and the primary oxygen inhalation interface 9, and the saturation flow control switch 10, the saturation flow meter 11, and the saturation oxygen inhalation control valve 15 are sequentially connected between the gas storage tank 4 and the saturation oxygen inhalation interface 12. In this embodiment, the primary flow meter 8 and the saturation flow meter 11 are glass tubular rotor flow meters. For aesthetic purposes, the primary flow control switch 7, the primary flow meter 8, the saturation flow control switch 10, and the saturation flow meter 11 are symmetrically arranged on the left and right sides of the front of the outer casing 1. The pressure gauge 5 and the main switch 3 are located above and below the center of the front of the outer casing 1. The primary oxygen inhalation interface 9 and the saturation oxygen inhalation interface 12 are located below the primary flow control switch 7 and the saturation flow control switch 10, respectively. The gas source interface 2, the float-type oxygen inhalation interface 6, and the timer 16 are located on both sides of the outer casing 1.

[0034] The multifunctional saturated oxygen inhalation device provided in this embodiment is used in the same way and with the same operating principle as in embodiment 1. However, by placing the primary flow control switch 7 and the saturated flow control switch 10 at the lower ends of the primary flow meter 8 and the saturated flow meter 11, respectively, it is possible to prevent the internal pressure of the primary flow meter 8 and the saturated flow meter 11 from remaining under high pressure when closed, thus avoiding damage and effectively extending the service life of the multifunctional saturated oxygen inhalation device in this embodiment. Example

[0035] The only difference between this embodiment and embodiments 1 or 2 is that it also includes a timer 16, which is embedded or fixed in the center of the front of the housing 1. For aesthetic purposes, the main switch 3 is located on the side of the housing 1.

[0036] The multifunctional saturated oxygen inhalation device provided in this embodiment is used in the same way and operates on the same principle as in Embodiment 1 or 2. The timer 16 is located on the front of the outer casing 1, making it easier for the user to set and view the timer. Example

[0037] Compared with Embodiments 1, 2 or 3, this embodiment is different in that it also includes a carrying slot 17 located on the upper back of the outer shell 1, and is equipped with a mobile trolley. The entire multifunctional saturated oxygen inhalation device is placed on the mobile trolley.

[0038] The multifunctional saturated oxygen inhalation device provided in this embodiment is used in the same way and with the same operating principle as in Embodiments 1, 2, or 3. By adding a carrying slot 17, when the multifunctional saturated oxygen inhalation device needs to be moved, it can be inserted into the carrying slot 17 with one hand and lifted to the designated location, which is very convenient. When it needs to be moved a long distance, the entire multifunctional saturated oxygen inhalation device can be placed on a mobile trolley and pushed to the designated location, which is both convenient and labor-saving.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and all should be covered within the scope of the claims and specification of this utility model.

Claims

1. A multifunctional saturated oxygen inhalation device, comprising a housing (1), a gas source interface (2), a main switch (3), a gas storage tank (4), a pressure gauge (5), a float-type oxygen inhalation interface (6), a primary flow control switch (7), a primary flow meter (8), a primary oxygen inhalation interface (9), a saturated flow control switch (10), a saturated flow meter (11), and a saturated oxygen inhalation interface (12), characterized in that: The outlet of the gas source interface (2) is connected to one end of the main switch (3) via a pipe, and the other end of the main switch (3) is connected to the inlet of the gas storage tank (4) and the inlet of the float-type oxygen inhalation interface (6) via pipes respectively; the pressure gauge (5) is connected to the gas storage tank (4), and the outlet of the gas storage tank (4) is connected to the inlet of the primary oxygen inhalation interface (9) and the inlet of the saturated oxygen inhalation interface (12) via pipes respectively; a primary flow is also provided between the gas storage tank (4) and the primary oxygen inhalation interface (9). The gas storage tank (4) is connected to the saturated oxygen inhalation interface (12) and the saturated flow control switch (10) and saturated flow meter (11). The gas storage tank (4) is also connected to the saturated oxygen inhalation interface (12). The gas storage tank (4) is also connected to the saturated flow control switch (10) and saturated flow meter (11). The gas storage tank (4) is connected to the saturated oxygen inhalation interface (9). The saturated flow control switch (10) and saturated flow meter (11) are also connected to the buoy-type oxygen inhalation check valve (13) and the first-stage oxygen inhalation check valve (14). The buoy-type oxygen inhalation check valve (13) is connected to the main switch (3) and the buoy-type oxygen inhalation interface (6). The first-stage oxygen inhalation check valve (14) is connected to the gas storage tank (4) and the first-stage oxygen inhalation interface (9).

2. The multifunctional saturated oxygen inhalation device according to claim 1, characterized in that: It also includes a saturated oxygen control valve (15), which is connected to the front end of the saturated oxygen interface (12).

3. The multifunctional saturated oxygen inhalation device according to claim 2, characterized in that: It also includes a timer (16).

4. The multifunctional saturated oxygen inhalation device according to claim 3, characterized in that: The gas source interface (2), main switch (3), pressure gauge (5), float-type oxygen inhalation interface (6), primary flow control switch (7), primary flow meter (8), primary oxygen inhalation interface (9), saturation flow control switch (10), saturation flow meter (11), saturation oxygen inhalation interface (12), and timer (16) are embedded or fixed on the outer shell (1), and the gas storage tank (4), float-type oxygen inhalation one-way valve (13), primary oxygen inhalation one-way valve (14), and saturation oxygen inhalation control valve (15) are located inside the outer shell (1).

5. The multifunctional saturated oxygen inhalation device according to claim 4, characterized in that: The primary flow control switch (7) is located at the lower end of the primary flow meter (8), and the saturation flow control switch (10) is located at the lower end of the saturation flow meter (11). The primary flow control switch (7), the primary flow meter (8), and the primary oxygen inhalation check valve (14) are connected sequentially between the gas storage tank (4) and the primary oxygen inhalation interface (9). The saturation flow control switch (10), the saturation flow meter (11), and the saturation oxygen inhalation control valve (15) are connected sequentially between the gas storage tank (4) and the saturation oxygen inhalation interface (12).

6. The multifunctional saturated oxygen inhalation device according to claim 4, characterized in that: The timer (16) is located on the front of the housing (1).

7. The multifunctional saturated oxygen inhalation device according to claim 4, characterized in that: It also includes a carrying handle (17), which is located on the upper back of the outer casing (1).

Citation Information

Patent Citations

  • Multifunctional saturated oxygen inhaler

    CN211675759U