An oxygen inhaler with a bidirectional filtering structure

Abstract

The utility model relates to oxygen inhaler technical field, and disclose a kind of oxygen inhaler with bidirectional filtering structure, including mounting plate and connecting piece, mounting plate top end face is fixedly installed with humidification bottle, and humidification bottle top end face is fixedly installed with bidirectional filtering mechanism. External air pump drives oxygen to enter the inside of connecting pipe through oxygen cylinder interface, and oxygen is filtered by first filter plate, second filter plate, third filter plate and second filter assembly after passing through connecting pipe and connecting piece, and oxygen is output after humidification in humidification bottle through first valve;When oxygen backflow, oxygen is filtered by third filter plate, second filter plate, third filter plate and second filter assembly, realize the bidirectional filtration of oxygen, can effectively solve the problem that oxygen backflow carries remaining gas into oxygen cylinder, can improve the use scene of the oxygen inhaler and the safety of patient, improve work quality.

Description

Technical Field

[0001] This utility model relates to the field of oxygen inhaler technology, specifically to an oxygen inhaler with a bidirectional filtration structure. Background Technology

[0002] An oxygen inhaler is a medical device used for measuring oxygen flow. Its main function is to deliver oxygen to emergency patients and to patients with hypoxia at an appropriate flow rate. An oxygen inhaler mainly consists of a pressure gauge, a pressure reducing valve and safety valve, a flow meter, a flow control valve, and a humidification bottle. High-pressure oxygen is reduced in pressure by the pressure reducing valve, becoming low-pressure oxygen. This low-pressure oxygen then passes through the flow meter into the humidification bottle, where it is humidified and then output at a constant flow rate from the low-pressure oxygen outlet for patient inhalation.

[0003] When using existing oxygen inhalers, the oxygen delivery process can produce odors and harmful gases due to the delivery time and the material of the delivery pipe, resulting in a decrease in the quality of the delivered oxygen. Furthermore, it is sometimes necessary to recirculate the delivered oxygen, which inevitably leads to the recirculation of other gases. Therefore, two-way filtration of oxygen is required.

[0004] Therefore, there is a need to provide an oxygen inhaler with a two-way filtration structure. Utility Model Content

[0005] The purpose of this invention is to provide an oxygen inhaler with a bidirectional filtration structure to solve the problem mentioned in the background art that traditional sample filters cannot perform bidirectional filtration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oxygen inhaler with a bidirectional filtration structure, comprising a mounting plate and a connector, wherein a humidification bottle is fixedly mounted on the top surface of the mounting plate, and a bidirectional filtration mechanism is fixedly mounted on the top surface of the humidification bottle; the bidirectional filtration mechanism includes a filter cylinder, which is fixedly connected to the top surface of the humidification bottle, and two grooves are fixedly formed on the side of the filter cylinder, with a mounting frame slidably mounted on the inner wall of the groove, the side of the mounting frame engaging with the inner wall of the groove, an upper sealing ring fixedly mounted on the top surface of the mounting frame, and a lower sealing ring fixedly mounted on the bottom surface of the mounting frame, the top surface of the upper sealing ring and the bottom surface of the lower sealing ring being pressed against the inner wall of the groove, and a handle fixedly mounted on the side of the mounting frame.

[0007] Preferably, a first filter plate is fixedly installed on the inner wall of the mounting frame, a second filter plate is fixedly installed on the inner wall of the mounting frame, and a third filter plate is fixedly installed on the inner wall of the mounting frame.

[0008] Preferably, a second filter assembly is snapped onto the inner wall of the groove opened on the side of the filter cylinder, and a third filter plate, a second filter plate, and a first filter plate are also installed on the inner wall of the second filter assembly from top to bottom.

[0009] Preferably, a second valve and a third valve are fixedly provided on the side of the filter cartridge.

[0010] Preferably, an oxygen pipe interface is fixedly installed on the side of the desiccant bottle, and a first valve is provided inside the oxygen pipe interface.

[0011] Preferably, the bottom end face of the connector is fixedly connected to the top end face of the filter cartridge, a connecting pipe is fixedly installed on the side of the connector, a pressure gauge is provided on the side of the connecting pipe, a pressure relief valve is fixedly provided on the bottom end face of the pressure gauge, and an oxygen cylinder interface is fixedly installed on the side of the pressure gauge.

[0012] Preferably, a flow meter is fixedly installed on the top surface of the connector, and a flow regulating valve is fixedly installed on the side surface of the connector.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1) In use, this oxygen inhaler with a two-way filtration structure uses an external air pump to drive oxygen into the connecting tube through the oxygen cylinder interface. The amount of oxygen input is further regulated by adjusting the flow regulating valve. The oxygen passes through the connecting tube and connectors, and the flow rate is observed by the flow meter raised by the pressure. The oxygen then passes through the first filter plate, the second filter plate, the third filter plate, and the second filter assembly for filtration. After being humidified in the humidification bottle, the oxygen is output through the first valve. When the oxygen flows back, it is filtered through the third filter plate, the second filter plate, the third filter plate, and the second filter assembly, achieving two-way filtration. This effectively solves the problem of carrying other gases into the oxygen cylinder during oxygen recirculation, thus improving the usability of the oxygen inhaler, enhancing patient safety, and improving the quality of work.

[0015] 2) This oxygen inhaler with a two-way filtration structure allows oxygen to enter the connector through the connecting tube. When the oxygen enters the humidification bottle for humidification, the second and third valves need to be opened beforehand to ensure smooth entry. The oxygen then passes through the filter assembly for filtration. Pressure can be monitored using a pressure gauge to ensure stable and safe air pressure during delivery. After prolonged use, the filtration quality of the filter assembly will decrease. At this time, grip the handle and press to disengage the mounting frame, then pull the mounting frame outwards to inspect, maintain, or replace the first, second, and third filter plates and the second filter assembly. It allows for reasonable pressure and flow regulation and effectively improves the speed of filter plate inspection and maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an oxygen inhaler with a bidirectional filtration structure according to an embodiment of the present invention;

[0017] Figure 2 This is a bottom view of the structure in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter cylinder in an embodiment of the present invention;

[0019] Figure 4 This is a partial structural diagram of the bidirectional filtration mechanism in an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the first filter plate in an embodiment of this utility model.

[0021] In the diagram: 1. Mounting plate; 2. Humidifier bottle; 3. Oxygen pipe interface; 4. First valve; 5. Two-way filtration mechanism; 501. Filter cartridge; 502. Second valve; 503. Third valve; 504. Mounting frame; 505. Upper sealing ring; 506. Lower sealing ring; 507. Handle; 508. First filter plate; 509. Second filter plate; 510. Third filter plate; 511. Second filter assembly; 6. Connector; 7. Flow regulating valve; 8. Connecting pipe; 9. Oxygen cylinder interface; 10. Pressure gauge; 11. Pressure relief valve; 12. Flow meter. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Combination Figures 1-5An oxygen inhaler with a bidirectional filtration structure includes a mounting plate 1 and a connector 6. A humidification bottle 2 is fixedly mounted on the top surface of the mounting plate 1, and a bidirectional filtration mechanism 5 is fixedly mounted on the top surface of the humidification bottle 2. The bidirectional filtration mechanism 5 includes a filter cartridge 501, which is fixedly connected to the top surface of the humidification bottle 2. Two grooves are fixedly formed on the side of the filter cartridge 501, and a mounting frame 504 is slidably mounted on the inner wall of the groove. The side of the mounting frame 504 is engaged with the inner wall of the groove. An upper sealing ring 505 is fixedly mounted on the top surface of the mounting frame 504, and a lower sealing ring is fixedly mounted on the bottom surface of the mounting frame 504. 506, the top surface of the upper sealing ring 505 and the bottom surface of the lower sealing ring 506 are pressed and connected to the inner wall of the groove. A handle 507 is fixedly installed on the side of the mounting frame 504. A first filter plate 508, a second filter plate 509, and a third filter plate 510 are fixedly installed on the inner wall of the mounting frame 504. A second filter assembly 511 is snapped into the inner wall of the groove opened on the side of the filter cylinder. The inner wall of the second filter assembly 511 is also sequentially installed with the third filter plate 510, the second filter plate 509, and the first filter plate 508 from top to bottom.

[0025] Specifically, in use, first connect the oxygen tubing to oxygen tubing interface 3, then connect the oxygen cylinder to oxygen cylinder interface 9. At this time, the external air pump drives the oxygen through oxygen cylinder interface 9 into the connecting pipe 8. The input pressure of the oxygen can be observed through the pressure gauge so that the pressure can be adjusted through the pressure relief valve 11. Further, the amount of input oxygen can be adjusted by adjusting the flow regulating valve 7. The oxygen passes through the connecting pipe 8 and the connecting piece 6, and the flow meter 12 is lifted by the pressure to observe the oxygen flow rate. Then, the oxygen is filtered through the first filter plate 508, the second filter plate 509, the third filter plate 510, and the second filter assembly 511. After the oxygen enters the humidification bottle 2 for humidification, it is output through the first valve 4. When the oxygen flows back, it is filtered through the first filter plate 508, the second filter plate 509, the third filter plate 510, and the second filter assembly 511, realizing bidirectional filtration of oxygen.

[0026] Example 2

[0027] See Figures 1-5 Furthermore, it is found that a second valve 502 is fixedly installed on the side of the filter cartridge 501, and a third valve 503 is fixedly installed on the side of the filter cartridge 501; an oxygen pipe interface 3 is fixedly installed on the side of the desiccant 2, and a first valve 4 is installed inside the oxygen pipe interface 3; the bottom end face of the connector 6 is fixedly connected to the top end face of the filter cartridge 501, a connecting pipe 8 is fixedly installed on the side of the connector 6, a pressure gauge 10 is installed on the side of the connecting pipe 8, a pressure relief valve 11 is fixedly installed on the bottom end face of the pressure gauge 10, and an oxygen cylinder interface 9 is fixedly installed on the side of the pressure gauge 10; a flow meter 12 is fixedly installed on the top end face of the connector 6, and a flow regulating valve 7 is fixedly installed on the side of the connector 6;

[0028] Specifically, oxygen enters the connector 6 through the connecting pipe 8. When the oxygen enters the humidification bottle 2 for humidification, the second valve 502 and the third valve 503 need to be opened beforehand to allow the oxygen to enter the humidification bottle 2 smoothly. The oxygen passes through the filter assembly in sequence and is filtered. At this time, the pressure can be observed through the pressure gauge 10 to ensure stable and safe air pressure during delivery. After long-term use, the filtration quality of the filter assembly will decrease. At this time, hold the handle 507 tightly and press to disengage the mounting frame 504 from the snap-fit ​​state. Pull the mounting frame 504 outward to inspect, maintain or replace the first filter plate 508, the second filter plate 509, the third filter plate 510 and the second filter assembly 511.

[0029] 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 the 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. An oxygen inhaler with a bidirectional filtering structure, comprising a mounting plate (1) and a connecting piece (6), characterized in that: A desiccant bottle (2) is fixedly installed on the top surface of the mounting plate (1), and a bidirectional filter mechanism (5) is fixedly installed on the top surface of the desiccant bottle (2). The bidirectional filtration mechanism (5) includes a filter cylinder (501), which is fixedly connected to the top surface of the desiccant bottle (2). The filter cylinder (501) has two grooves fixedly opened on its side, and an installation frame (504) is slidably installed on the inner wall of the groove. The side of the installation frame (504) is snapped into the inner wall of the groove. An upper sealing ring (505) is fixedly installed on the top surface of the installation frame (504), and a lower sealing ring (506) is fixedly installed on the bottom surface of the installation frame (504). The top surface of the upper sealing ring (505) and the bottom surface of the lower sealing ring (506) are pressed into contact with the inner wall of the groove. A handle (507) is fixedly installed on the side of the installation frame (504).

2. The oxygen inhaler with bidirectional filtering structure according to claim 1, characterized in that: A first filter plate (508) is fixedly installed on the inner wall of the mounting frame (504), a second filter plate (509) is fixedly installed on the inner wall of the mounting frame (504), and a third filter plate (510) is fixedly installed on the inner wall of the mounting frame (504).

3. An oxygen inhaler with a bidirectional filtration structure according to claim 2, characterized in that: The second filter assembly (511) is installed in the groove on the side of the filter cylinder. The second filter assembly (511) is also installed with a third filter plate (510), a second filter plate (509) and a first filter plate (508) from top to bottom on the inner wall of the second filter assembly (511).

4. An oxygen inhaler with a bidirectional filtration structure according to claim 1, characterized in that: A second valve (502) is fixedly installed on the side of the filter cylinder (501), and a third valve (503) is fixedly installed on the side of the filter cylinder (501).

5. An oxygen inhaler with a bidirectional filtration structure according to claim 1, characterized in that: The oxygen pipe interface (3) is fixedly installed on the side of the humidification bottle (2), and a first valve (4) is provided inside the oxygen pipe interface (3).

6. An oxygen inhaler with a bidirectional filtration structure according to claim 1, characterized in that: The bottom end face of the connector (6) is fixedly connected to the top end face of the filter cartridge (501). A connecting pipe (8) is fixedly installed on the side of the connector (6). A pressure gauge (10) is provided on the side of the connecting pipe (8). A pressure relief valve (11) is fixedly provided on the bottom end face of the pressure gauge (10). An oxygen cylinder interface (9) is fixedly installed on the side of the pressure gauge (10).

7. An oxygen inhaler with a bidirectional filtration structure according to claim 1, characterized in that: A flow meter (12) is fixedly installed on the top surface of the connector (6), and a flow regulating valve (7) is fixedly installed on the side of the connector (6).

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