Anesthesia gas purifier

Abstract

The utility model discloses an anaesthetic gas purification device relates to medical appliance field, including the casing, the casing one side is equipped with the air inlet pipe and the air outlet pipe intercommunication in the casing interior, and the end of air inlet pipe and air outlet pipe in the casing interior is equipped with the butt joint, and the other side of casing opposite the butt joint still is equipped with the opening. The filter core is connected in the casing interior through the opening sliding, and the filter core is equipped with the air inlet, the air outlet corresponding with air inlet pipe, air outlet pipe in the casing interior, and the air inlet and the air outlet are equipped with the butt joint with butt joint snap -on, and the filter core is equipped with the knob still, and the filter core is fixedly connected with the casing through the screw thread mode. Still including the first core body, the second core body, the third core body that arrange in the filter core inside in proper order, and the first core body is constructed with the cotton stick of staggered arrangement, and the second core body is the honeycomb structure. The utility model discloses the filter core structure and dismounting mode through reconfiguration, so as to improve the filtration efficiency and facilitate dismounting, reduce anaesthetic gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a gas purification device for anesthesia. Background Technology

[0002] Gaseous anesthesia is an important form of general anesthesia. It involves the patient inhaling volatile anesthetic gases or vapors, which enter the central nervous system, causing reversible loss of consciousness and anesthesia. This ensures that the patient can undergo surgical treatment smoothly under painless and safe conditions.

[0003] Anesthetic gases include inhaled anesthetics such as enflurane, sevoflurane, isoflurane, and ether. During gas anesthesia, the anesthetic gases are usually purified and filtered before being absorbed by the human body to avoid harm to the body from harmful particulate matter in the anesthetic gases.

[0004] Existing anesthetic gases are highly volatile and primarily stored in steel cylinders. During transport, storage, and use, they may be contaminated by external gases, introducing solid impurities and affecting their purity. Furthermore, some existing anesthetic gas filters have extremely low filtration efficiency and are difficult to disassemble, potentially posing a health risk to operating room personnel to anesthetic waste gases. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model proposes an anesthetic gas purification device, which improves filtration efficiency and facilitates disassembly by reconstructing the filter element structure and disassembly method, thereby reducing anesthetic gas leakage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anesthetic gas purification device, comprising a housing, an inlet pipe and an outlet pipe connected to the inside of the housing on one side, and an interface provided at the ends of the inlet pipe and the outlet pipe inside the housing, and an opening provided on the other side of the housing opposite to the interface.

[0007] The filter element is slidably connected to the inside of the housing through the opening. The filter element is provided with an air inlet and an air outlet corresponding to the air inlet pipe and the air outlet pipe, and the air inlet and the air outlet are provided with a connector that engages with the connector. The filter element is also provided with a knob, which fixes the filter element to the housing by means of threads.

[0008] It also includes a first core, a second core, and a third core arranged sequentially inside the filter element. The first core is constructed from staggered cotton swabs, and the second core has a honeycomb structure.

[0009] Furthermore, the connector has a tapered structure and is made of an elastic material to enhance the airtightness of the engagement with the connector.

[0010] Furthermore, the filter element is also provided with a cover plate, the edge of which extends beyond the edge of the housing, so that when the filter element is installed inside the housing, it tightly covers the opening.

[0011] The beneficial effects of this invention are as follows: The housing and filter element are slidably connected, allowing for simultaneous disconnection or engagement of the inlet and outlet pipes during filter element replacement, thus improving filter element replacement efficiency. Compared to the traditional method of sequentially disconnecting and connecting the inlet and outlet pipes, this method shortens connection and disconnection time, reduces anesthetic gas leakage, and enhances protection for operating room medical personnel. The filter element structure utilizes tightly arranged, staggered cotton swabs, which effectively filter and block gas flow. Simultaneously, the staggered spacing enhances gas flow efficiency, further improving the filtration efficiency of anesthetic gases. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of an anesthetic gas purification device;

[0013] Figure 2 This is a schematic diagram showing the connection and disconnection of the housing and filter element of a gas purification device for anesthesia.

[0014] Figure 3 This is a diagram showing the internal structure of a filter element in an anesthetic gas purification device.

[0015] Figure 4 This is a schematic diagram showing the connection between the filter element and the bottom of the housing of a gas purification device for anesthesia.

[0016] Figure 5 A schematic diagram of the first core structure of an anesthetic gas purification device;

[0017] Figure 6 A cross-sectional view of the first core of an anesthetic gas purification device;

[0018] Figure 7 for Figure 6 A magnified view of part A in the diagram.

[0019] Reference numerals: 1. Housing; 101. Inlet pipe; 102. Outlet pipe; 103. Connecting port; 104. Opening; 105. Valve; 2. Filter element; 201. Cover plate; 202. Knob; 203. Connecting port; 204. Inlet; 205. Outlet; 206. Channel; 3. First core; 301. Cotton swab; 4. Second core; 5. Third core. Detailed Implementation

[0020] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.

[0021] See Figures 1 to 4 The image shows an anesthetic gas purification device, which includes a housing 1. An inlet pipe 101 and an outlet pipe 102 are provided on the same side of the housing 1 and are connected to the inside of the housing 1. A valve 105 is provided on the inlet pipe 101. When the filter element 2 is replaced, the valve 105 can be closed to block the flow of anesthetic gas and avoid leakage of anesthetic gas during the replacement process.

[0022] Both the inlet pipe 101 and the outlet pipe 102 have an interface 103 at their ends inside the housing 1. An opening 104 is also provided on the other side of the housing 1 opposite to the interface 103. The filter element 2 is slidably connected to the inside of the housing 1 through the opening 104. The filter element 2 has an inlet port 204 and an outlet port 205 corresponding to the inlet pipe 101 and the outlet pipe 102, respectively. Both the inlet port 204 and the outlet port 205 have a connector 203 that engages with the interface 103. The connector 203 is a conical structure made of elastic material. In some preferred embodiments, the interface 103 can also be a columnar or conical structure, made of rigid or elastic material. When the filter element 2 is installed or removed via the sliding connection, the protrusion of the connector 203 engages with the recess of the interface 103. Both the connector 203 and the interface 103 have a central connection structure to facilitate the circulation of anesthetic gas between the filter element 2 and the inside and outside of the housing 1. The connector 203 and the interface 103 adopt a tapered structure to enhance guidance during the docking process and prevent docking failure due to dimensional errors. The use of elastic material improves the airtightness of the connector 203 and interface 103 after engagement, reducing anesthetic gas leakage.

[0023] like Figure 4 The filter element 2 shown also has a knob 202. The filter element 2 has a threaded channel 206 inside, and the housing 1 has threaded holes on one side of the air inlet pipe 101 and air outlet pipe 102. The knob 202 securely connects the filter element 2 to the housing 1 via the threads. When the filter element 2 is slidably connected to the bottom of the housing 1, rotating the knob 202 will securely install the filter element 2 to the housing 1. Of course, in some preferred embodiments, a snap-fit ​​connection can also be used, but a threaded connection is more reliable to enhance airtightness and improve fault tolerance.

[0024] like Figure 3 As shown, the first core 3, the second core 4, and the third core 5 are arranged sequentially inside the filter element 2 in the gas flow direction from the air inlet 204 to the air outlet 205. Figure 5 , Figure 6The first core 3 shown is constructed from tightly arranged cotton swabs 301, which are made of medical filter cotton. The second core 4 has a honeycomb structure and uses a high-efficiency activated carbon composite TrueHEPA filter screen, which can further improve physical filtration, electrostatic capture, and diffusion deposition. The honeycomb structure also improves filtration efficiency to some extent. The third core 5 is made of activated carbon for further adsorption of solid particulate impurities. In some preferred embodiments, the first core 3, second core 4, and third core 5 are also wrapped with non-woven fabric to prevent debris from the filter core 2 material from falling into the anesthetic gas.

[0025] like Figure 1 , Figure 2 The filter element 2 shown is also provided with a cover plate 201. The edge of the cover plate 201 extends beyond the edge of the housing 1, so that when the filter element 2 is installed inside the housing 1, it tightly covers the opening 104. The side of the cover plate 201 that contacts the housing 1 is provided with a sealing layer or a sealing ring is provided circumferentially along the opening 104 to enhance the tightness of the connection between the filter element 2 and the housing 1 and prevent leakage of anesthetic gas.

[0026] The housing 1 and filter element 2 of this invention are slidably connected. When replacing the filter element 2, the inlet pipe 101 and outlet pipe 102 can be simultaneously disconnected or connected, thus improving the replacement efficiency of the filter element 2. Compared to the traditional method of sequentially disconnecting and reconnecting the inlet pipe 101 and outlet pipe 102 before removing the filter element 2 for replacement, this method can shorten the disconnection and reconnection time, reduce anesthetic waste gas leakage, and improve the protection of operating room medical personnel. Figure 7 As shown, the filter element 2 uses tightly arranged cotton swabs 301 in an alternating pattern. This can filter and block the gas flow in the direction of gas convection. At the same time, the gaps between the alternating patterns can also enhance the flow efficiency of anesthetic gas, further improving the filtration and purification efficiency of anesthetic gas.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A gas purification device for anesthesia, characterized in that: Includes a housing (1), with an air inlet pipe (101) and an air outlet pipe (102) on one side of the housing (1) connected to the inside of the housing (1), and the ends of the air inlet pipe (101) and the air outlet pipe (102) inside the housing (1) are provided with a connection interface (103), and the other side of the housing (1) opposite to the connection interface (103) is also provided with an opening (104). The filter element (2) is slidably connected to the inside of the housing (1) through the opening (104). The filter element (2) is provided with an air inlet (204) and an air outlet (205) corresponding to the air inlet pipe (101) and the air outlet pipe (102). The air inlet (204) and the air outlet (205) are provided with a connector (203) that engages with the connector (103). The filter element (2) is also provided with a knob (202). The knob (202) fixes the filter element (2) to the housing (1) by means of a thread. It also includes a first core (3), a second core (4), and a third core (5) arranged sequentially inside the filter element (2). The first core (3) is constructed from staggered cotton swabs (301), and the second core (4) has a honeycomb structure.

2. The anesthetic gas purification device according to claim 1, characterized in that: The connector (203) has a conical structure and is made of elastic material to enhance the airtightness of the engagement with the connector (103).

3. The anesthetic gas purification device according to claim 1 or 2, characterized in that: The filter element (2) is also provided with a cover plate (201), the edge of which extends beyond the edge of the housing (1), so that when the filter element (2) is installed inside the housing (1), it tightly covers the opening (104).

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