Anesthetic gas filtering device

Abstract

An anesthetic gas filtering device comprises a filtering cylinder, a gas inlet cylinder, a gas outlet cylinder, a diffusion plate and an extension plate, the filtering cylinder is fixed to the lower side of the gas inlet cylinder, the filtering cylinder is fixed to the upper side of the gas outlet cylinder, a gas inlet pipeline is arranged in the diffusion plate, the gas inlet pipeline of the diffusion plate is connected with the gas inlet cylinder, the extension plate is connected with the diffusion plate, and vent holes are formed in the extension plate and the diffusion plate. And activated carbon is arranged in the filter cartridge. Due to the fact that the device is provided with the diffuser, the device is connected with the air inlet cylinder through the diffuser, anesthetic gas at the air inlet cylinder can be dispersed and prevented from being gathered, meanwhile, the extension plate is arranged on the lower side of the diffusion plate, the air holes are formed in the diffusion plate and the extension plate, fine anesthetic gas can be guided onto the activated carbon, and the anesthetic gas can be absorbed by the activated carbon. Therefore, the activated carbon is more uniformly adsorbed, and the problem that part of activated carbon is not completely absorbed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an anesthetic gas filtering device. Background Art

[0002] Since the 1960s, with the continuous advancement of medical technology, the use of anesthetic gases in operating rooms has become increasingly widespread, but the resulting problem of gas leaks has also become increasingly prominent. Long-term exposure to these leaked anesthetic gases poses serious health risks to medical staff, including neurological damage and respiratory problems. To address this challenge, anesthetic gas filtration devices have emerged. These devices use high-efficiency filter materials to effectively remove waste anesthetic gases, including volatile anesthetics and high-concentration nitrous oxide, from the operating room air, ensuring that operating room air quality meets national safety standards. Furthermore, some advanced filtration devices also have a sterilization function, further reducing the health threat to medical staff from pathogens carried in the patient's exhaled air. With the continuous advancement of technology, the performance of anesthetic gas filtration devices has also been continuously improved, providing medical staff with a safer and healthier working environment.

[0003] According to the Chinese patent with patent number: CN217745299U, a disposable anesthetic mixed gas adsorption and antibacterial device is disclosed, which relates to the field of medical device technology, including an adsorption chamber, a chamber cover and a central column. A gas guide cylinder is provided at the top of the central column. The outer surfaces of the gas guide cylinder and the central column are jointly provided with two partition plates. The interior of the adsorption chamber is divided into a first filter chamber and a second filter chamber. The interiors of the first filter chamber and the second filter chamber are respectively provided with an upper filter plate and a lower filter plate. The lower surface of the upper filter plate is provided with an upper filter membrane, and the upper surface of the lower filter plate is provided with a lower filter membrane. The utility model solves the problem of timely reducing the anesthetic gas concentration in the anesthesia machine pipeline after the patient's operation is completed, and can filter out tiny virus-carrying aerosols or harmful dust mixed in the anesthetic mixed waste gas, and can also solve the problem of insufficient tightness of the connection between the Y-type connecting pipe and the patient-direction air inlet pipe.

[0004] However, during use of existing anesthetic gas filtering devices, since the exhaust ports of the existing filtering devices are all located above the activated carbon and the gas outlet area is large, the anesthetic gas is easily gathered in one place and filtered through a specific area of ​​activated carbon, resulting in the problem that some activated carbon is not fully absorbed. Utility Model Content

[0005] The technical problem to be solved by the present utility model is to overcome the problem that during use of the existing anesthetic gas filtering device, since the exhaust ports of the existing filtering device are all located above the activated carbon and the gas outlet area is large, the anesthetic gas is easily gathered in one place and filtered through the activated carbon in a specific area, resulting in part of the activated carbon not being completely absorbed.

[0006] The technical solutions adopted to solve the above technical problems are:

[0007] An anesthetic gas filtering device includes a filter cartridge, an air inlet cartridge, an air outlet cartridge, a diffuser plate, and an extension plate. The filter cartridge is fixed to the lower side of the air inlet cartridge, and the filter cartridge is fixed to the upper side of the air outlet cartridge. An air inlet pipe is provided inside the diffuser plate, and the air inlet pipe of the diffuser plate is connected to the air inlet cartridge. The extension plate is connected to the diffuser plate, and air holes are provided on the extension plate and the diffuser plate. Activated carbon is provided inside the filter cartridge.

[0008] As a preferred technical solution of the present invention, a first pipe docking tube is provided next to the air intake cylinder, and the first pipe docking tube is concentrically matched with the air intake cylinder. A first filter plate is fixed in the air intake cylinder, and filter holes are opened on the first filter plate, which can prevent impurities from entering the filter cylinder and hindering the smoothness of breathing.

[0009] As an optimal technical solution of the present invention, a second pipe docking tube is provided next to the punching tube, and the second pipe docking tube is concentrically matched with the punching tube. A second filter plate is fixed in the punching tube, and filter holes are provided on the second filter plate, which can prevent the crushed activated carbon from falling into the punching tube and posing a threat to the patient's life safety, and can effectively reduce the number of times the doctor needs to provide care.

[0010] As a preferred technical solution of the present invention, a mounting cover plate is threadedly connected to the filter cartridge, and an air intake cylinder and a first pipe docking cylinder are fixed on the mounting cover plate.

[0011] As a preferred technical solution of the present invention, a humidifying tube is fixed on the left side of the installation cover plate, a sealing cover is provided on the humidifying tube, and the sealing cover is interference-connected with the humidifying tube.

[0012] As a preferred technical solution of the present invention, a third filter plate is fixed in the humidifying tube, filter holes are opened on the third filter plate, and an air outlet is provided on the right side of the mounting cover.

[0013] As an optimal technical solution of the present invention, a collecting lower baffle is fixed on the lower side of the filter cylinder, and an air outlet is fixed on the lower side of the collecting lower baffle. The collecting lower baffle is frustum-shaped and can collect the filtered anesthetic gas to reduce the difficulty of inhalation.

[0014] The beneficial effects of the utility model are:

[0015] Since the utility model is provided with a diffuser, the device is connected to the air inlet cylinder through the diffuser, which can disperse the anesthetic gas at the air inlet cylinder and prevent the anesthetic gas from gathering. At the same time, an extension plate is provided on the lower side of the diffusion plate, and air holes are opened on the diffusion plate and the extension plate, which can introduce fine anesthetic gas onto the activated carbon, so that the activated carbon is adsorbed more evenly, avoiding the problem of some activated carbon not being completely absorbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first axis view of the present invention;

[0017] Figure 2 This is a second axis view of the present invention;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 for Figure 3 A magnified partial view of center A.

[0020] In the figure: 1. Filter cartridge; 2. Air inlet cartridge; 3. Air outlet cartridge; 4. Diffuser plate; 5. Extension plate; 6. Air vent; 7. First pipe docking cartridge; 8. Second pipe docking cartridge; 9. Mounting cover; 10. First filter plate; 11. Second filter plate; 12. Humidifier tube; 13. Sealing cover; 14. Third filter plate; 15. Collecting lower baffle; 16. Air outlet. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the above description of the present invention, it should be noted that the terms "one side" and "the other side" and the like indicate positions or locations based on the positions or locations shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0025] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0026] Example 1

[0027] exist Figure 1-4 The utility model provides a technical solution: an anesthetic gas filtering device, comprising a filter cartridge 1, an air inlet cartridge 2, an air outlet cartridge 3, a diffuser plate 4 and an extension plate 5. The filter cartridge 1 is fixed to the lower side of the air inlet cartridge 2, and the filter cartridge 1 is fixed to the upper side of the air outlet cartridge 3. An air inlet pipe is provided inside the diffuser plate 4, the air inlet pipe of the diffuser plate 4 is connected to the air inlet cartridge 2, and the extension plate 5 is connected to the diffuser plate 4. Air holes 6 are provided on the extension plate 5 and the diffuser plate 4, and the air inlet pipe through the diffuser plate 4 is connected to the air inlet cartridge 2. Activated carbon is provided in the filter cartridge 1, and the diffuser plate 4 can disperse the gathered gas, and part of the gas enters the pipe of the extension plate 5, and then disperses through the extension plate 5 and the air holes 6 of the diffuser plate 4, and contacts with the activated carbon in the filter cartridge 1, thereby preventing the accumulation of anesthetic gas and making the activated carbon adsorbed more evenly, thus avoiding the problem of some activated carbon not being completely absorbed.

[0028] In one aspect of this embodiment, a first pipe docking tube 7 is provided next to the air inlet tube 2, and the first pipe docking tube 7 is concentrically matched with the air inlet tube 2, which facilitates the connection between the pipe and the air inlet tube 2 and has good sealing performance. A first filter plate 10 is fixed in the air inlet tube 2, and filter holes are opened on the first filter plate 10. A second pipe docking tube 8 is provided next to the air outlet tube 3, and the second pipe docking tube 8 is concentrically matched with the air outlet tube 3. A second filter plate 11 is fixed in the air outlet tube 3, and filter holes are opened on the second filter plate 11, which can prevent the crushed activated carbon from falling into the air outlet tube and posing a threat to the patient's life safety.

[0029] In one aspect of this embodiment, a mounting cover plate 9 is threadedly connected to the filter cartridge 1, an air inlet cylinder 2 and a first pipe docking cylinder 7 are fixed on the mounting cover plate 9, a humidifying tube 12 is fixed to the left side of the mounting cover plate 9, a sealing cover 13 is provided on the humidifying tube 12, the sealing cover 13 is interference fit with the humidifying tube 12, the humidifying tube 12 can be connected to a humidifier, the humidity of the anesthetic gas can be changed when the patient breathes, humidified gas can be provided to the patient, and the occurrence of related complications can be reduced, a third filter plate 14 is fixed in the humidifying tube 12, a filter hole is opened on the third filter plate 14, an air outlet 16 is provided on the right side of the mounting cover plate 9, a collecting lower baffle 15 is fixed to the lower side of the filter cartridge 1, an air outlet cylinder 3 is fixed to the lower side of the collecting lower baffle 15, and the collecting lower baffle 15 is truncated.

[0030] The working principle of the present invention is as follows: During use of the present invention, the user connects the air inlet cylinder 2 to the breathing circuit, and then connects the air outlet cylinder 3 to the mask. After the anesthetic gas enters from the air inlet cylinder 2, the diffuser plate 4 can disperse the gas gathered in the air inlet cylinder 2, and partially enter the pipeline of the extension plate 5, and then disperse through the air holes 6 of the extension plate 5 and the diffuser plate 4, and come into contact with the activated carbon in the filter cylinder 1. Then the doctor controls the power of the humidifier according to the characteristics of the patient. The humidifying tube 12 can be connected to the humidifier. When the patient breathes, the humidity of the anesthetic gas can be changed, and humidified gas can be provided to the patient, reducing the occurrence of related complications.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An anesthetic gas filtering device, comprising a filter cartridge (1), an air inlet cartridge (2), an air outlet cartridge (3), a diffuser plate (4), and an extension plate (5), characterized in that: A filter cartridge (1) is fixed on the lower side of the air inlet cylinder (2), a filter cartridge (1) is fixed on the upper side of the air outlet cylinder (3), an air inlet pipe is provided inside the diffuser plate (4), the air inlet pipe of the diffuser plate (4) is connected to the air inlet cylinder (2), the extension plate (5) is connected to the diffuser plate (4), air holes (6) are provided on both the extension plate (5) and the diffuser plate (4), and activated carbon is provided inside the filter cartridge (1).

2. An anesthetic gas filtering device according to claim 1, characterized in that: A first pipe docking tube (7) is provided next to the air intake cylinder (2), and the first pipe docking tube (7) is concentrically matched with the air intake cylinder (2). A first filter plate (10) is fixed inside the air intake cylinder (2), and a filter hole is opened on the first filter plate (10).

3. An anesthetic gas filtering device according to claim 2, characterized in that: A second pipe docking tube (8) is provided next to the outlet tube (3), and the second pipe docking tube (8) is coaxially matched with the outlet tube (3). A second filter plate (11) is fixed inside the outlet tube (3), and a filter hole is opened on the second filter plate (11).

4. The anesthetic gas filtering device according to claim 1, characterized in that: The filter cylinder (1) is threadedly connected to a mounting cover plate (9), and the mounting cover plate (9) is fixed with an air intake cylinder (2) and a first pipe docking cylinder (7).

5. The anesthetic gas filtering device according to claim 4, characterized in that: A humidifying tube (12) is fixed on the left side of the installation cover plate (9), and a sealing cover (13) is provided on the humidifying tube (12), and the sealing cover (13) is interference-connected with the humidifying tube (12).

6. The anesthetic gas filtering device according to claim 5, characterized in that: A third filter plate (14) is fixed in the humidifying tube (12), and filter holes are provided on the third filter plate (14). An air outlet (16) is provided on the right side of the mounting cover plate (9).

7. The anesthetic gas filtering device according to claim 6, characterized in that: A collecting lower baffle (15) is fixed on the lower side of the filter cylinder (1), and an air outlet cylinder (3) is fixed on the lower side of the collecting lower baffle (15). The collecting lower baffle (15) is in a truncated cone shape.

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