An anesthetic waste gas treatment device for anesthesiologists

By designing an anesthetic waste gas treatment device with a cylindrical mask and multi-stage filtration components, the problem of anesthetic waste gas diffusion was solved, multiple treatment modes were realized, and the treatment effect and safety were improved.

CN121243989BActive Publication Date: 2026-04-21NORTHWEST WOMEN & CHILDREN HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWEST WOMEN & CHILDREN HOSPITAL
Filing Date
2025-11-26
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing exhaust gas treatment devices cannot effectively prevent anesthetic exhaust gases from spreading into the operating room, posing a threat to the health of medical staff. Furthermore, they have a single filtration method and cannot handle multiple types of anesthetic exhaust gases.

Method used

An anesthetic waste gas treatment device was designed, comprising a cylindrical mask, a negative pressure component, an activated carbon adsorption component, a molecular sieve filtration component, and an oxidation catalytic component. The device treats anesthetic waste gas through multiple filtration combination modes, combining negative pressure recovery and multi-stage filtration purification.

Benefits of technology

It effectively reduces the leakage of anesthetic waste gas, provides multiple treatment modes, adapts to different types of anesthetic waste gas, improves the versatility and safety of treatment, and reduces harm to doctors.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an anesthesia waste gas treatment device for anesthesiologists, belonging to the field of anesthesia waste gas treatment. It includes a waste gas treatment mechanism, a lifting and stabilizing mechanism connected to the bottom of the waste gas treatment mechanism, and a cylindrical mask connected to the top of the waste gas treatment mechanism. The waste gas treatment mechanism includes a shell, inside which a negative pressure component is installed. One end of the negative pressure component is connected to the cylindrical mask via a pipe assembly. The other end of the negative pressure component is connected to an activated carbon adsorption component, a molecular sieve filtration component, an oxidation catalytic component, and a condenser. The lifting and stabilizing mechanism includes a base located at the bottom of the shell, with casters at the bottom. This invention uses the aforementioned anesthesia waste gas treatment device for anesthesiologists. The cylindrical mask covers the entire head of the patient, and the negative pressure component rapidly recovers the generated anesthetic waste gas. By combining multiple filtration components, different types of anesthetic waste gas can be treated, thus broadening its applicability.
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Description

Technical Field

[0001] This invention relates to the field of anesthetic waste gas treatment technology, and in particular to an anesthetic waste gas treatment device for anesthesiologists. Background Technology

[0002] During surgery, anesthesiologists administer anesthetic gases to patients before surgery. These gases are delivered to the patient's lungs through the mask via the anesthesia machine's inlet tube, through the patient's mouth and nose. However, patients cannot absorb all the delivered anesthetic gases. The unabsorbed gases mix with the patient's own respiration to form anesthetic waste gas, which can easily diffuse into the operating room, posing a threat to the health of medical staff.

[0003] Existing waste gas treatment devices use open absorption, which still allows anesthetic waste gas to diffuse into the operating room, affecting the doctors there. Furthermore, the filtration system is limited to a single type and cannot filter and purify various types of anesthetic waste gas. Summary of the Invention

[0004] The purpose of this invention is to provide an anesthetic waste gas treatment device for anesthesiologists. The device uses a cylindrical mask to cover the patient's entire head and a negative pressure component to quickly recover the generated anesthetic waste gas. It also uses a combination of various filter components to treat different types of anesthetic waste gas, making it more widely applicable.

[0005] To achieve the above objectives, the present invention provides an anesthesia waste gas treatment device for anesthesiologists, including a waste gas treatment mechanism, a lifting and stabilizing mechanism connected to the bottom of the waste gas treatment mechanism, and a cylindrical mask connected to the top of the waste gas treatment mechanism.

[0006] The exhaust gas treatment unit includes an outer shell, inside which a negative pressure component is installed. One end of the negative pressure component is connected to a cylindrical mask through a pipe assembly. The other end of the negative pressure component is connected to an activated carbon adsorption component, a molecular sieve filtration component, an oxidation catalysis component, and a condenser.

[0007] The lifting and stabilizing mechanism includes a base, which is located at the bottom of the outer casing, and the bottom of the base is equipped with casters.

[0008] Preferably, the top of the cylindrical mask is sealed, the bottom of the cylindrical mask is provided with a rubber ring for fitting around the patient's neck, the top of the outer shell is provided with a groove for placing the cylindrical mask, and the casters are universal wheels.

[0009] Preferably, the piping assembly includes a bellows, one end of which is sealed to a cylindrical mask via a connecting pipe, and the other end of which is sealed to a negative pressure assembly via a connecting pipe.

[0010] Preferably, the other end of the negative pressure component is sealed to a connecting pipe, and the connecting pipe is sealed to a pipe one and a pipe two. Pipe one is sealed to an activated carbon adsorption component, the activated carbon adsorption component is sealed to a molecular sieve filter component through a pipe three, the molecular sieve filter component is sealed to an oxidation catalytic component through a pipe four, and the oxidation catalytic component is sealed to an anesthetic waste gas storage box through a pipe five. The anesthetic waste gas storage box is located inside the outer shell.

[0011] Preferably, pipe two is sealed to one end of the condenser, and the other end of the condenser is sealed to the manifold via pipe six. Several branch pipes are sealed to the manifold, and the branch pipes are sealed to the anesthetic waste gas storage box.

[0012] Preferably, pipe 3 is sealed to pipe 2 via pipe 7, pipe 4 is sealed to pipe 2 via pipe 8, and pipe 5 is sealed to pipe 2 via pipe 9. Pipe 2 is provided with pipe 10 and pipe 11 for sealing connection with the anesthetic waste gas storage box.

[0013] Preferably, solenoid valve 1 is installed on pipe 1, solenoid valve 2, solenoid valve 3, and solenoid valve 4 are installed sequentially on pipe 2, solenoid valve 2 and solenoid valve 3 are located on both sides of pipe 7, solenoid valve 3 and solenoid valve 4 are located on both sides of pipe 8, solenoid valve 4 and the condenser are located on both sides of pipe 9, solenoid valve 5 is installed on pipe 7, solenoid valve 6 is installed on pipe 8, and solenoid valve 7 is installed on pipe 9.

[0014] Preferably, solenoid valve 8 is installed on pipe 5, solenoid valve 9 is installed on each branch pipe, pipe 10 is located between solenoid valve 2 and solenoid valve 3, and pipe 11 is located between solenoid valve 3 and solenoid valve 4.

[0015] Preferably, the activated carbon adsorption component includes an activated carbon box containing activated carbon for adsorption and filtration; the molecular sieve filtration component includes a molecular sieve box containing zeolite molecular sieves; and the oxidation catalysis component includes a catalysis box containing a high-temperature heating element for catalytic decomposition.

[0016] Preferably, a hydraulic cylinder is provided on the base, the hydraulic rod of the hydraulic cylinder passes through the base and connects to the stabilizer, the stabilizer is located below the base, the stabilizer is provided with an opening for the moving wheels to pass through, and the bottom of the stabilizer is provided with a striped rubber pad.

[0017] Therefore, the present invention employs the above-mentioned anesthetic waste gas treatment device for anesthesiologists, which has the following beneficial effects:

[0018] (1) The present invention covers the patient’s entire head with a cylindrical mask and uses a negative pressure component to quickly recover the generated anesthetic waste gas, thereby reducing the leakage of anesthetic waste gas and thus reducing the harm to doctors, making it safer.

[0019] (2) By controlling different solenoid valve switches, this invention can achieve various anesthetic waste gas treatment modes, such as activated carbon adsorption filtration alone, activated carbon + molecular sieve combined filtration, activated carbon + molecular sieve + oxidation catalysis combined filtration, activated carbon filtration combined with low temperature condensation recovery, activated carbon + molecular sieve filtration combined with low temperature condensation recovery, and activated carbon + molecular sieve + oxidation catalysis combined with low temperature condensation recovery. It can treat different anesthetic waste gases and has a wider range of applications.

[0020] (3) The present invention uses a hydraulic cylinder to lift the stabilizer seat, thereby raising the entire device. This not only lifts the moving wheels off the ground to improve the working stability of the device, but also lifts the entire device to a suitable height for easy use.

[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of an anesthesia waste gas treatment device for anesthesiologists according to the present invention;

[0023] Figure 2 This is a partial perspective view of an embodiment of an anesthesia waste gas treatment device for anesthesiologists according to the present invention;

[0024] Figure 3 This is a bottom view of a cylindrical mask according to an embodiment of an anesthesia waste gas treatment device for anesthesiologists of the present invention.

[0025] Figure 4 This is a schematic diagram showing the connection of each component of the exhaust gas treatment mechanism in an embodiment of the anesthetic exhaust gas treatment device for anesthesiologists according to the present invention.

[0026] Figure 5 This is a side view of the moving wheels of an embodiment of an anesthesia waste gas treatment device for anesthesiologists according to the present invention.

[0027] Figure Labels

[0028] 1. Waste gas treatment mechanism; 101. Outer shell; 102. Negative pressure component; 103. Activated carbon adsorption component; 104. Molecular sieve filtration component; 105. Oxidation catalysis component; 106. Condenser; 107. Corrugated pipe; 108. Pipe 1; 109. Pipe 2; 110. Pipe 3; 111. Pipe 4; 112. Pipe 5; 113. Pipe 6; 114. Pipe 7; 115. Pipe 8; 116. Pipe 9; 117. Pipe 10; 118. Pipe 11; 119. Anesthetic waste gas storage box; 120. Manifold; 121. Branch pipe; 122. Solenoid valve 1; 123. Solenoid valve 2; 124. Solenoid valve 3; 125. Solenoid valve 4; 126. Solenoid valve 5; 127. Solenoid valve 6; 128. Solenoid valve 7; 129. Solenoid valve 8; 130. Solenoid valve 9; 131. Connecting pipe;

[0029] 2. Lifting and stabilizing mechanism; 201. Base; 202. Casters; 203. Hydraulic cylinder; 204. Stabilizing seat;

[0030] 3. Cylindrical face mask; 301. Rubber ring layer. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0032] It should be noted that the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or devices.

[0033] Similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] Example

[0037] like Figure 1 , Figure 2 As shown, the anesthetic waste gas treatment device for anesthesiologists according to the present invention includes a waste gas treatment mechanism 1, a lifting and stabilizing mechanism 2 connected to the bottom of the waste gas treatment mechanism 1, and a cylindrical mask 3 connected to the top of the waste gas treatment mechanism 1.

[0038] like Figure 4 As shown, the exhaust gas treatment mechanism 1 includes a housing 101, and a negative pressure component 102 is disposed inside the housing 101. The negative pressure component 102 adopts a conventional Venturi effect device, which is suitable for the mobile anesthetic exhaust gas treatment device of the present invention. One end of the negative pressure component 102 is connected to the cylindrical mask 3 through a pipe assembly, and the other end of the negative pressure component 102 is connected to an activated carbon adsorption component 103, a molecular sieve filtration component 104, an oxidation catalysis component 105, and a condenser 106.

[0039] The lifting and stabilizing mechanism 2 includes a base 201, which is located at the bottom of the outer casing 101. A caster wheel 202 is provided at the bottom of the base 201; the caster wheel 202 is a swivel wheel. For example... Figure 1 , Figure 3As shown, the top of the cylindrical mask 3 is sealed, and the bottom of the cylindrical mask 3 has a rubber ring 301 for fitting around the patient's neck. The top of the outer shell 101 has a groove for placing the cylindrical mask 3, facilitating its placement when not in use. The patient first puts on the anesthesia mask, and then puts on the cylindrical mask 3. The delivery tube of the anesthesia mask passes between the rubber ring 301 and the patient's neck, and the gap allows the negative pressure assembly 102 to maintain the air pressure balance inside the cylindrical mask 3 when it generates suction. Because the cylindrical mask 3 covers the entire patient's head, the negative pressure assembly 102 prevents anesthetic gas from escaping. The pressure of the negative pressure assembly 102 is adjustable, allowing the patient to be in a more comfortable environment.

[0040] A hydraulic cylinder 203 is mounted on the base 201, and the hydraulic rod of the hydraulic cylinder 203 passes through the base 201 and connects to the stabilizer 204. For example... Figure 5 As shown, the stabilizing seat 204 is located below the base 201. The stabilizing seat 204 has an opening for the moving wheel 202 to pass through. A striped rubber pad is installed on the bottom of the stabilizing seat 204 to increase the friction between the stabilizing seat 204 and the ground. The hydraulic rod of the hydraulic cylinder 203 lowers the stabilizing seat 204, lifting the entire device. The moving wheel 202 passes through the opening and leaves the ground. Combined with the rubber pad, this keeps the device stably stationary on the ground, and simultaneously adjusts the height of the device.

[0041] The piping assembly includes a corrugated pipe 107. One end of the corrugated pipe 107 is sealed to the cylindrical mask 3 via a connecting pipe, and the other end of the corrugated pipe 107 is sealed to the negative pressure assembly 102 via a connecting pipe. The other end of the negative pressure assembly 102 is sealed to a connecting pipe 131, and connecting pipes 108 and 109 are sealed to the connecting pipe 131. Connecting pipe 108 is sealed to the activated carbon adsorption assembly 103. The activated carbon adsorption assembly 103 is sealed to the molecular sieve filter assembly 104 via connecting pipe 110, and the molecular sieve filter assembly 104 is sealed to the oxidation catalysis assembly 105 via connecting pipe 111. The oxidation catalysis assembly 105 is sealed to the anesthetic waste gas storage box 119 via connecting pipe 112, and the anesthetic waste gas storage box 119 is located inside the outer shell 101. Pipeline 2 109 is sealed to one end of condenser 106, and the other end of condenser 106 is sealed to manifold 120 via pipeline 6 113. Several branch pipes 121 are sealed to manifold 120, and the branch pipes 121 are sealed to anesthetic waste gas storage box 119. Pipeline 3 110 is sealed to pipeline 2 109 via pipeline 7 114, pipeline 4 111 is sealed to pipeline 2 109 via pipeline 8 115, and pipeline 5 112 is sealed to pipeline 2 109 via pipeline 9 116. Pipeline 2 109 is equipped with pipelines 10 117 and 118 for sealed connection with anesthetic waste gas storage box 119.

[0042] Solenoid valve 122 is installed on pipe 108. Solenoid valves 123, 124, and 125 are installed sequentially on pipe 209. Solenoid valves 123 and 124 are located on both sides of pipe 7114, and solenoid valves 124 and 125 are located on both sides of pipe 8115. Solenoid valve 125 and condenser 106 are located on both sides of pipe 9116. Solenoid valve 126 is installed on pipe 7114, solenoid valve 127 is installed on pipe 8115, and solenoid valve 128 is installed on pipe 9116. Solenoid valve 129 is installed on pipe 5112, and solenoid valve 130 is installed on each branch pipe 121. Pipe 117 is located between solenoid valves 123 and 124, and pipe 118 is located between solenoid valves 124 and 125.

[0043] The activated carbon adsorption assembly 103 includes an activated carbon box containing activated carbon for adsorption and filtration. The molecular sieve filtration assembly 104 includes a molecular sieve box containing zeolite molecular sieves. The oxidation catalysis assembly 105 includes a catalytic chamber containing a high-temperature heating element for catalytic decomposition. The high-temperature heating element uses existing heating elements and can heat to 300-500℃. The porous structure of activated carbon can adsorb volatile organic compounds (VOCs). Zeolite molecular sieves selectively adsorb gases of specific molecular sizes through pore size, making them suitable for capturing less polar anesthetic gas molecules; their use in conjunction with activated carbon can improve efficiency. At high temperatures (300-500℃), anesthetic gases are decomposed into carbon dioxide and water by a catalyst (such as platinum or palladium). The condenser 106 cools the waste gas to low temperatures (such as below -50℃), allowing the anesthetic gases to liquefy and be recovered. The anesthetic gases can be reused, reducing waste and pollution.

[0044] This invention enables various anesthetic waste gas treatment modes, such as activated carbon adsorption filtration alone, activated carbon + molecular sieve combined filtration, activated carbon + molecular sieve + oxidation catalysis combined filtration, activated carbon filtration combined with low-temperature condensation recovery, activated carbon + molecular sieve filtration combined with low-temperature condensation recovery, and activated carbon + molecular sieve + oxidation catalysis combined with low-temperature condensation recovery, by controlling different solenoid valve switches, so as to further treat different anesthetic waste gases.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A device for treating anesthetic waste gas for anesthesiologists, characterized in that: Includes an exhaust gas treatment mechanism (1), a lifting and stabilizing mechanism (2) connected to the bottom of the exhaust gas treatment mechanism (1), and a cylindrical mask (3) connected to the top of the exhaust gas treatment mechanism (1). The exhaust gas treatment mechanism (1) includes an outer shell (101), and a negative pressure component (102) is provided inside the outer shell (101). One end of the negative pressure component (102) is connected to a cylindrical mask (3) through a pipe assembly. One end of the negative pressure component (102) is connected to an activated carbon adsorption component (103), a molecular sieve filtration component (104), an oxidation catalysis component (105), and a condenser (106). The lifting and stabilizing mechanism (2) includes a base (201), which is located at the bottom of the outer shell (101), and a moving wheel (202) is provided at the bottom of the base (201). The other end of the negative pressure component (102) is sealed to a connecting pipe (131). The connecting pipe (131) is sealed to a pipe one (108) and a pipe two (109). The pipe one (108) is sealed to the activated carbon adsorption component (103). The activated carbon adsorption component (103) is sealed to the molecular sieve filter component (104) through the pipe three (110). The molecular sieve filter component (104) is sealed to the oxidation catalysis component (105) through the pipe four (111). The oxidation catalysis component (105) is sealed to the anesthetic waste gas storage box (119) through the pipe five (112). The anesthetic waste gas storage box (119) is located inside the outer shell (101). Pipeline 2 (109) is sealed to one end of condenser (106), and the other end of condenser (106) is sealed to manifold (120) through pipe 6 (113). Several branch pipes (121) are sealed to manifold (120), and the branch pipes (121) are sealed to anesthetic waste gas storage box (119). Pipeline 3 (110) is sealed to pipeline 2 (109) via pipeline 7 (114), pipeline 4 (111) is sealed to pipeline 2 (109) via pipeline 8 (115), pipeline 5 (112) is sealed to pipeline 2 (109) via pipeline 9 (116), and pipeline 10 (117) and pipeline 11 (118) are provided on pipeline 2 (109) for sealing connection with the anesthetic waste gas storage box (119). Solenoid valve 1 (122) is installed on pipe 1 (108). Solenoid valve 2 (123), solenoid valve 3 (124), and solenoid valve 4 (125) are installed on pipe 2 (109) in sequence. Solenoid valve 2 (123) and solenoid valve 3 (124) are located on both sides of pipe 7 (114). Solenoid valve 3 (124) and solenoid valve 4 (125) are located on both sides of pipe 8 (115). Solenoid valve 4 (125) and condenser (106) are located on both sides of pipe 9 (116). Solenoid valve 5 (126) is installed on pipe 7 (114). Solenoid valve 6 (127) is installed on pipe 8 (115). Solenoid valve 7 (128) is installed on pipe 9 (116). Solenoid valve 8 (129) is installed on pipe 5 (112), and solenoid valve 9 (130) is installed on each branch pipe (121). Pipe 10 (117) is located between solenoid valve 2 (123) and solenoid valve 3 (124), and pipe 11 (118) is located between solenoid valve 3 (124) and solenoid valve 4 (125).

2. The anesthesia waste gas treatment device for anesthesiologists according to claim 1, characterized in that: The top of the cylindrical mask (3) is sealed, the bottom of the cylindrical mask (3) is provided with a rubber ring (301) for fitting around the patient's neck, the top of the outer shell (101) is provided with a groove for placing the cylindrical mask (3), and the caster wheel (202) is a universal wheel.

3. The anesthesia waste gas treatment device for anesthesiologists according to claim 1, characterized in that: The piping assembly includes a bellows (107), one end of which is sealed to a cylindrical mask (3) via a connecting pipe, and the other end of which is sealed to a negative pressure assembly (102) via a connecting pipe.

4. The anesthetic waste gas treatment device for anesthesiologists according to claim 1, characterized in that: The activated carbon adsorption component (103) includes an activated carbon box containing activated carbon for adsorption and filtration. The molecular sieve filtration component (104) includes a molecular sieve box containing zeolite molecular sieves. The oxidation catalysis component (105) includes a catalysis box containing a high-temperature heating element for catalytic decomposition.

5. The anesthetic waste gas treatment device for anesthesiologists according to claim 1, characterized in that: A hydraulic cylinder (203) is provided on the base (201). The hydraulic rod of the hydraulic cylinder (203) passes through the base (201) and is connected to the stabilizer (204). The stabilizer (204) is located below the base (201). The stabilizer (204) has an opening for the moving wheel (202) to pass through. The bottom of the stabilizer (204) is provided with a striped rubber pad.

Citation Information

Patent Citations

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