Concentration regulating device for anesthetic gases

By installing electronic valves and electric telescopic rods on anesthetic gas cylinders and oxygen cylinders, combined with thin pipes and stirring plates inside the mixing vessel, the problem of inaccurate concentration of anesthetic gas at different pressures and temperatures was solved, achieving precise gas mixing and concentration control.

CN224269883UActive Publication Date: 2026-05-26CHANGZHOU MAICHUANG MEDICAL MACHINE LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU MAICHUANG MEDICAL MACHINE LTD
Filing Date
2024-12-24
Publication Date
2026-05-26

Smart Images

  • Figure CN224269883U_ABST
    Figure CN224269883U_ABST
Patent Text Reader

Abstract

A device for adjusting the concentration of anesthetic gas includes a working panel, an anesthetic gas cylinder, an oxygen cylinder, a mounting bracket, an electric telescopic rod, and an extraction plate. The anesthetic gas cylinder and the oxygen cylinder are fixed to the upper side of the working panel. The mounting bracket is fixed to the upper side of the working panel, and the electric telescopic rod is fixed to the mounting bracket. The extraction plate is located inside the anesthetic gas cylinder and the oxygen cylinder, and is fixed to the lower side of the electric telescopic rod. There are two electric telescopic rods and two extraction plates. Both the inlet and outlet of the anesthetic gas cylinder and the oxygen cylinder are equipped with electronic valves. Because this invention includes anesthetic gas cylinders and oxygen cylinders, the electric telescopic rod pulls the extraction plate inside the anesthetic gas cylinder and the oxygen cylinder to the corresponding stroke, creating a negative pressure of the corresponding pressure value inside the cylinder. When anesthetic gas and oxygen are input, the cylinder can store the corresponding volume of anesthetic gas and oxygen, thereby achieving a precise anesthetic gas concentration ratio.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of anesthesia, specifically to a device for adjusting the concentration of anesthetic gases. Background Technology

[0002] Inhaled anesthetics, as an important tool in modern medicine, offer significant advantages. They typically exist in the form of volatile liquids or gases, easily entering the body through the respiratory tract, rapidly dissolving in the bloodstream and distributing throughout the body to exert an anesthetic effect. These drugs can be controlled to produce a range of anesthesia from mild to deep, providing doctors with great operational flexibility. Doctors can precisely adjust the concentration and dosage of inhaled anesthetics according to the needs of surgery or treatment, ensuring that the patient remains pain-free and unconscious throughout the procedure while maintaining stable vital signs. Furthermore, inhaled anesthetics are characterized by rapid metabolism and quick recovery, helping to shorten postoperative recovery time and reduce patient pain and discomfort. With the continuous development of medical technology, the application prospects of inhaled anesthetics will become even broader.

[0003] According to Chinese Patent No. CN211410559U, an anesthetic gas concentration regulating device for anesthesiology is disclosed, including an anesthetic gas flow valve and a gas mixing seat. The anesthetic gas flow valve is vertically installed at the bottom left side of the gas mixing seat. A novel connecting and reinforcing device is added to the outside of the outer sleeves on the oxygen inlet pipe, anesthetic gas inlet pipe, and mixed gas outlet pipe of the anesthetic gas concentration regulating device. The three connecting and reinforcing devices are mainly fixed by the mutual tightening of the threads on the inner wall of the fixing sleeve and the threads on the outer wall of the outer sleeve. This allows the connecting and reinforcing devices to be installed or removed at any time to determine whether to use them. The main function of the three connecting and reinforcing devices is to reinforce the medical pipes connected to the three outer sleeves respectively, preventing oxygen and anesthetic gas leakage due to loosening of the medical pipes connected to the outer sleeves during use.

[0004] However, existing anesthetic gas concentration regulating devices often suffer from inaccurate concentration ratios because they control the flow rates of anesthetic gas and oxygen. This is because the flow rates of anesthetic gas and oxygen vary under different external conditions such as air pressure and temperature, resulting in inconsistent flow rates and inaccurate concentration ratios. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the problem that existing anesthetic gas concentration regulating devices, in the process of use, mostly control the ratio and concentration of anesthetic gas and oxygen by controlling the flow rate of anesthetic gas and oxygen. However, under different external conditions such as different air pressure and temperature, the flow rate of anesthetic gas and oxygen is not the same, resulting in the final flow rate of anesthetic gas and oxygen being inconsistent, causing the anesthetic gas concentration ratio to be inaccurate.

[0006] The technical solution adopted to solve the above technical problems is:

[0007] A concentration regulating device for anesthetic gas includes a working panel, an anesthetic gas cylinder, an oxygen cylinder, a mounting bracket, an electric telescopic rod, and an extraction plate. The anesthetic gas cylinder is fixed to the upper side of the working panel, the oxygen cylinder is fixed to the upper side of the working panel, the mounting bracket is fixed to the upper side of the working panel, the electric telescopic rod is fixed to the mounting bracket, and the extraction plate is located inside the anesthetic gas cylinder and the oxygen cylinder. The extraction plate is fixed to the lower side of the electric telescopic rod. There are two electric telescopic rods and two extraction plates. The inlet and outlet of the anesthetic gas cylinder and the oxygen cylinder are equipped with electronic valves.

[0008] As a preferred technical solution of this utility model, the electronic valves of the outlets of the anesthetic gas cylinder and the oxygen cylinder are connected to the gas delivery pipeline via gas tubes. A thin pipe is fixed on the gas delivery pipeline, which can disperse the gas and make the gas mix more evenly.

[0009] As a preferred embodiment of this utility model, a mixing vessel is fixed on the working panel, and the mixing vessel is connected to a thin pipe.

[0010] As a preferred technical solution of this utility model, a rotating motor is fixed on the top of the mixing vessel, a motor bracket is provided on the rotating motor, the motor bracket is fixed on the mixing vessel, a rotating shaft is rotatably connected inside the mixing vessel, a stirring plate is fixed on the rotating shaft, an electronic valve is provided at the gas outlet on the right side of the mixing vessel, and the stirring plate can fully stir the gas.

[0011] As a preferred embodiment of this utility model, a control panel is fixed on the mounting bracket, and the control panel consists of an LED display screen and control buttons.

[0012] As a preferred embodiment of this utility model, a work cabinet is fixed to the lower side of the work panel, and a maintenance door is rotatably connected to the front of the work cabinet.

[0013] As a preferred embodiment of this utility model, the lower side of the work cabinet is rotatably connected with casters, and the work cabinet is fixed with a gripping handle, which facilitates the user to move the equipment.

[0014] The beneficial effects of this utility model are as follows:

[0015] Because this invention includes an anesthetic gas cylinder and an oxygen cylinder, the user can use an electric telescopic rod to pull the extraction plate inside the anesthetic gas cylinder and oxygen cylinder to the corresponding stroke according to the concentration of the anesthetic gas, so that a negative pressure of the corresponding pressure value is formed inside the anesthetic gas cylinder and oxygen cylinder. When the anesthetic gas and oxygen are input, the anesthetic gas cylinder and oxygen cylinder can store the corresponding capacity of anesthetic gas and oxygen, thereby achieving a precise anesthetic gas concentration ratio. Attached Figure Description

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

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

[0018] Figure 3 for Figure 2 A magnified view of part A;

[0019] Figure 4 This is the third axial view of the present invention.

[0020] In the diagram: 1. Work panel; 2. Anesthetic gas cylinder; 3. Oxygen cylinder; 4. Mounting bracket; 5. Electric telescopic rod; 6. Extraction plate; 7. Gas pipeline; 8. Small pipeline; 9. Mixing vessel; 10. Rotary motor; 11. Rotating shaft; 12. Stirring plate; 13. Control panel; 14. Work cabinet; 15. Maintenance door; 16. Casters; 17. Grab handle; 18. Motor bracket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally 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 merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that 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.

[0024] In the above description of this utility model, it should be noted that the terms "one side," "the other side," 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 commonly used when the utility model product is in use. They are only for the convenience of describing this utility model 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 limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0026] Example 1

[0027] exist Figure 1-4 This utility model provides a technical solution: a concentration regulating device for anesthetic gas, including a working panel 1, an anesthetic gas cylinder 2, an oxygen cylinder 3, a mounting bracket 4, an electric telescopic rod 5, and an extraction plate 6. The anesthetic gas cylinder 2 and the oxygen cylinder 3 are fixed on the upper side of the working panel 1, the mounting bracket 4 is fixed on the upper side of the working panel 1, the electric telescopic rod 5 is fixed on the mounting bracket 4, and the extraction plate 6 is located inside the anesthetic gas cylinder 2 and the oxygen cylinder 3. The extraction plate 6 is fixed below the electric telescopic rod 5. There are two electric telescopic rods 5 and extraction plates 6. The inlet and outlet of the anesthetic gas cylinder 2 and the oxygen cylinder 3 are equipped with electronic valves. According to the oxygen concentration required by the patient, the user controls the electric telescopic rod 5 to move upward through the control panel 13, so that the corresponding negative pressure value is formed in the anesthetic gas cylinder 2 and the oxygen cylinder 3, and then injects anesthetic gas and oxygen into the anesthetic gas cylinder 2 and the oxygen cylinder 3 respectively.

[0028] In one aspect of this embodiment, the electronic valves at the outlets of the anesthetic gas cylinder 2 and the oxygen cylinder 3 are connected to the gas delivery pipe 7 via gas pipes. A thin pipe 8 is fixed to the gas delivery pipe 7. A mixing vessel 9 is fixed to the working panel 1. The mixing vessel 9 is connected to the thin pipe 8. A rotating motor 10 is fixed to the top of the mixing vessel 9. A motor bracket 18 is provided on the rotating motor 10 and fixed to the mixing vessel 9. A rotating shaft 11 is rotatably connected inside the mixing vessel 9. A stirring plate 12 is fixed on the rotating shaft 11. An electronic valve is provided at the outlet on the right side of the mixing vessel 9. A control panel 13 is fixed to the mounting bracket 4. The control panel 13 consists of an LED display screen and control buttons. When the user opens the electronic valves of the anesthetic gas cylinder 2 and the oxygen cylinder 3, anesthetic gas and oxygen are injected into the mixing vessel 9 through the thin pipe 8. The thin pipe 8 can disperse the anesthetic gas and oxygen, thereby improving the mixing effect. At the same time, the rotating motor 10 is turned on to stir the gas in the mixing vessel 9. After stirring, the gas is discharged from the outlet.

[0029] In one aspect of this embodiment, a work cabinet 14 is fixed to the lower side of the work panel 1, a maintenance door 15 is rotatably connected to the front of the work cabinet 14, casters 16 are rotatably connected to the lower side of the work cabinet 14, and a gripping handle 17 is fixed on the work cabinet 14.

[0030] The working principle of this utility model is as follows: During use, the user controls the electric telescopic rod 5 to move upward according to the oxygen concentration required by the patient via the control panel 13, so that a corresponding negative pressure value is formed in the anesthetic gas cylinder 2 and the oxygen cylinder 3. Then, anesthetic gas and oxygen are injected into the anesthetic gas cylinder 2 and the oxygen cylinder 3 respectively through the constant pressure anesthetic gas source and oxygen gas source. After the pressure value of the anesthetic gas source and the oxygen gas source no longer changes, the electronic valves of the air inlet of the anesthetic gas cylinder 2 and the oxygen cylinder 3 are closed, and then the electronic valves of the air outlet of the anesthetic gas cylinder 2 and the oxygen cylinder 3 are opened. The electric telescopic rod 5 is controlled to move downward to discharge the gas in the anesthetic gas cylinder 2 and the oxygen cylinder 3. The anesthetic gas and oxygen are injected into the mixing vessel 9 through the thin pipe 8. The thin pipe 8 can disperse the anesthetic gas and oxygen, thereby improving the mixing effect. At the same time, the rotating motor 10 is turned on to stir the gas in the mixing vessel 9. After stirring is completed, the electronic valve of the air outlet of the mixing vessel 9 is opened to discharge the mixed gas.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A concentration regulating device for anesthetic gases, comprising a working panel (1), an anesthetic gas cylinder (2), an oxygen cylinder (3), a mounting bracket (4), an electric telescopic rod (5), and an extraction plate (6), characterized in that: The anesthetic gas cylinder (2) is fixed on the upper side of the working panel (1), the oxygen cylinder (3) is fixed on the upper side of the working panel (1), the mounting bracket (4) is fixed on the upper side of the working panel (1), the electric telescopic rod (5) is fixed on the mounting bracket (4), the extraction plate (6) is located inside the anesthetic gas cylinder (2) and the oxygen cylinder (3), and the extraction plate (6) is fixed on the lower side of the electric telescopic rod (5). There are two electric telescopic rods (5) and extraction plates (6). The air inlet and outlet of the anesthetic gas cylinder (2) and the oxygen cylinder (3) are equipped with electronic valves. The electronic valves of the outlet of the anesthetic gas cylinder (2) and the oxygen cylinder (3) are connected to the gas delivery pipe (7) through a gas tube. A small pipe (8) is fixed on the gas supply pipe (7), a mixing vessel (9) is fixed on the working panel (1), the mixing vessel (9) is connected to the small pipe (8), a rotating motor (10) is fixed on the top of the mixing vessel (9), a motor bracket (18) is provided on the rotating motor (10), the motor bracket (18) is fixed on the mixing vessel (9), a rotating shaft (11) is rotatably connected inside the mixing vessel (9), a stirring plate (12) is fixed on the rotating shaft (11), an electronic valve is provided at the gas outlet on the right side of the mixing vessel (9), and a control panel (13) is fixed on the mounting bracket (4). The control panel (13) consists of an LED display screen and control buttons.

2. The concentration regulating device for anesthetic gas according to claim 1, characterized in that: A work cabinet (14) is fixed to the lower side of the work panel (1), and a maintenance door (15) is rotatably connected to the front of the work cabinet (14).

3. The concentration regulating device for anesthetic gas according to claim 2, characterized in that: The work cabinet (14) is rotatably connected to a caster wheel (16) on its lower side, and a gripping handle (17) is fixed on the work cabinet (14).