Anesthetic evaporator
By introducing a concentration sensor and adjustment system into the anesthesia evaporator, the problem of difficult to control anesthesia concentration is solved, the precise regulation of anesthesia concentration and the purity of anesthetic gas are achieved, and the stability and safety of the anesthetic effect are ensured.
Patent Information
- Application Number
- CN202323497153.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-21
AI Technical Summary
When the existing anesthesia evaporators input anesthesia gas at the terminal, it is difficult to control the anesthesia concentration, and lack fine-tuning function, resulting in unstable anesthesia effect.
An anesthesia evaporator including a liquid chamber, a pumping mechanism, a terminal box, a concentration sensor and a regulation port was designed. The anesthetic concentration was detected through the concentration sensor, and the air pump and a dual-way valve were used to achieve accurate adjustment of the anesthetic gas to ensure the anesthetic concentration. Strict control.
Accurate adjustment of anesthesia concentration is achieved, the stability and safety of the anesthetic effect is ensured, impurities are avoided from entering the terminal box, and the purity of the anesthetic gas is improved.
Smart Images
Figure CN222195677U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of anesthesia equipment, and in particular relates to an anesthesia vaporizer. Background Art
[0002] The basic principle of the anesthetic vaporizer is to use the changes in the temperature and heat source of the surrounding environment to convert anesthetic drugs into evaporated gas. Through a certain amount of carrier gas, a part of the gas carries away the saturated anesthetic gas and becomes an airflow with a certain concentration of anesthetic vapor, which directly enters the anesthesia circuit. Its quality is related to the effect and success of inhalation anesthesia, and is directly related to the safety of the patient. An anesthetic vaporizer is needed.
[0003] At present, a Chinese patent with the announcement number CN113521478A discloses an anesthesia vaporizer pressure stabilizing device, including a liquid chamber and an evaporation chamber, the top of the liquid chamber is connected with a buffer chamber and an air extraction chamber, the buffer chamber is provided with an air wheel, the air wheel is connected with an air inlet, and the air inlet is divided into two paths. In the anesthesia vaporizer pressure stabilizing device, the ratio of fresh gas and carrier gas is determined solely by the stroke of the suction cylinder, and does not change with the pressure change. When the change of saturated vapor pressure is not considered, the ratio of anesthesia is kept constant, which is more conducive to the doctor's operation, and the probability of accidents during use is also greatly reduced. Secondly, when extracting steam from the evaporation chamber, the relatively independent sub-cavities are used for centralized extraction, which will reduce the pressure at the local position, accelerate the evaporation rate at the local position, and then increase the overall evaporation rate, and the stirring of the liquid surface and the stirring of the liquid by the air flow stirring liquid and the stirring paddle wind also accelerate the evaporation of the gas.
[0004] However, when the above device is in use, it relies on the rapid evaporation of the anesthetic liquid to perform constant pressure operation. However, when the anesthetic gas is input into the terminal, it is still difficult to control the concentration of the anesthetic, which makes it inconvenient for the staff to fine-tune the anesthetic output concentration. Utility Model Content
[0005] The utility model aims to solve the shortcomings of the prior art and proposes an anesthetic vaporizer, which has the advantages of achieving the effect of strictly controlling the anesthetic concentration.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] An anesthetic vaporizer comprises a liquid cavity, wherein a vacuum mechanism is arranged on the top of the liquid cavity, a terminal box is fixedly connected to one side of the vacuum mechanism, a concentration sensor body is fixedly connected to the top inner wall of the terminal box, an adjustment port is provided on the bottom inner wall of the terminal box, an exhaust port is provided on one side outer wall of the liquid cavity, an air pump covering the exhaust port is fixedly connected to one side outer wall of the liquid cavity, and the exhaust end of the air pump is fixedly connected to the inner wall of the adjustment port via an air supply pipe.
[0008] The air extraction mechanism includes a pump fixedly connected to the top outer wall of the liquid cavity, a gas delivery port is opened on one side of the top outer wall of the liquid cavity, the air extraction end of the pump is fixedly connected to the inner wall of the gas delivery port through an air delivery pipe, and the air delivery pipe is a T-shaped structure. The setting of the pump can extract anesthetic steam in the liquid cavity.
[0009] The inner wall of the regulating port is fixedly connected with a two-way valve, and the arrangement of the two-way valve can regulate the anesthetic gas passing through the regulating port.
[0010] The bottom inner wall of the terminal box is provided with an installation groove connected with the adjustment port, the inner wall of the installation groove is provided with a rotatable sealing plate, and the sealing plate covers the adjustment port. The setting of the sealing plate can seal the adjustment port when no concentration adjustment is required.
[0011] The inner walls at both ends of the mounting groove are rotatably connected with a same rotating shaft via bearings, the rotating shaft and the sealing plate are fixedly connected, and the bottom side of the sealing plate away from the rotating shaft is fixedly connected with a same connecting spring to the bottom inner wall of the mounting groove. The setting of the connecting spring can make the sealing plate stable.
[0012] The bottom of the sealing plate is fixedly connected with a sealing gasket surrounding the regulating port, and the sealing gasket is made of rubber. The provision of the sealing gasket can prevent gas in the regulating port from overflowing.
[0013] The inner walls on both sides of the liquid cavity are fixedly connected with connecting rods, and the same evaporator body is fixedly connected between the opposite sides of the two connecting rods. The setting of the evaporator body can evaporate the anesthetic liquid in the liquid cavity.
[0014] A plurality of evenly distributed evaporation tubes are fixedly connected to the bottom of the evaporator body. The arrangement of the evaporation tubes can produce more anesthetic liquid.
[0015] The beneficial effects of the utility model are:
[0016] 1. The anesthesia vaporizer can detect the anesthesia concentration through the concentration sensor body. When the anesthesia concentration is low, the air pump can be started and the air distribution valve of the equipment can be closed. The air pump can directly extract the anesthesia steam in the liquid cavity through the exhaust port and discharge it into the terminal box through the regulating port. At this time, the anesthesia concentration can be fine-tuned, so the effect of strictly controlling the anesthesia concentration can be achieved.
[0017] 2. The anesthesia vaporizer can adjust the air intake of the regulating port through a two-way valve. When the anesthetic concentration needs to be increased, the passage to the terminal box can be closed first and the anesthetic gas can be discharged to the outside of the gas pipe to prevent impurities remaining in the gas pipe or anesthesia devices with unqualified concentrations from entering the terminal box. After the anesthetic gas has been running for a period of time, the anesthetic gas with a relatively pure concentration can be discharged into the terminal box. At this time, the anesthetic concentration can be accurately adjusted in conjunction with the concentration sensor body. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a three-dimensional structural schematic diagram of an anesthesia vaporizer proposed by the utility model;
[0019] Figure 2 This is a partial cross-sectional structural schematic diagram of an anesthetic vaporizer proposed by the utility model;
[0020] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;
[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at B.
[0022] In the figure: 1. liquid chamber; 2. terminal box; 3. concentration sensor body; 4. adjustment port; 5. exhaust port; 6. air pump; 7. suction pump; 8. gas outlet; 9. two-way valve; 10. mounting groove; 11. sealing plate; 12. sealing gasket; 13. rotating shaft; 14. connecting spring; 15. connecting rod; 16. evaporator body; 17. evaporation tube. DETAILED DESCRIPTION
[0023] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0025] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.
[0026] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.
[0027] Reference Figure 1-4 An anesthetic vaporizer comprises a liquid chamber 1, a suction mechanism is arranged on the top of the liquid chamber 1, a terminal box 2 is fixedly connected to one side of the suction mechanism, a concentration sensor body 3 is fixedly connected to the top inner wall of the terminal box 2, a regulating port 4 is provided on the bottom inner wall of the terminal box 2, an exhaust port 5 is provided on one side outer wall of the liquid chamber 1, an air pump 6 covering the exhaust port 5 is fixedly connected to one side outer wall of the liquid chamber 1, an exhaust end of the air pump 6 is fixedly connected to the inner wall of the regulating port 4 through an air pipe, the suction mechanism comprises a suction pump 7 fixedly connected to the top outer wall of the liquid chamber 1, a gas port 8 is provided on one side of the top outer wall of the liquid chamber 1, a suction end of the suction pump 7 is fixedly connected to the inner wall of the gas port 8 through an air pipe, and the gas pipe is T-shaped. The structure can be used to extract the anesthetic steam in the liquid cavity 1 through the pump 7, and adjust the gas distribution valve to obtain a suitable anesthetic concentration, wherein the top opening of the gas pipe with a T-shaped structure can be connected to the gas distribution pipeline, and the inner wall of the regulating port 4 is fixedly connected with a two-way valve 9, and the air intake of the regulating port 4 can be adjusted through the two-way valve 9. When it is necessary to increase the anesthetic concentration, the passage to the terminal box 2 can be closed first and the anesthetic gas can be discharged to the outside of the gas pipe to avoid impurities remaining in the gas pipe or an anesthetic device with unqualified concentration from entering the terminal box 2. After the anesthetic gas has been running for a period of time, the anesthetic gas with a relatively pure concentration can be discharged into the terminal box 2. At this time, the anesthetic concentration can be accurately adjusted in conjunction with the concentration sensor body 3.
[0028] Reference Figure 2-4The bottom inner wall of the terminal box 2 is provided with a mounting groove 10 connected to the adjustment port 4. The inner wall of the mounting groove 10 is provided with a rotatable sealing plate 11, and the sealing plate 11 covers the adjustment port 4. The inner wall of the adjustment port 4 can be sealed by the sealing plate 11. When the anesthetic concentration is adjusted, the sealing plate 11 covers the adjustment port 4. The inner walls at both ends of the mounting groove 10 are rotatably connected with the same rotating shaft 13 through bearings. The rotating shaft 13 is fixedly connected to the sealing plate 11. The bottom side of the sealing plate 11 away from the rotating shaft 13 is connected to the mounting groove 10. A connecting spring 14 is fixedly connected between the bottom inner walls of the groove 10, and a pulling force can be applied to the sealing plate 11 through the connecting spring 14. After the concentration in the terminal box 2 is adjusted, that is, after the air pump 6 finishes delivering gas, the sealing plate 11 can cover the adjusting port 4 under the action of the connecting spring 14. A sealing gasket 12 surrounding the adjusting port 4 is fixedly connected to the bottom of the sealing plate 11, and the sealing gasket 12 is made of rubber. The gap between the sealing plate 11 and the bottom inner wall of the mounting groove 10 can be reduced by the sealing gasket 12, thereby improving the sealing performance of the sealing plate 11.
[0029] Reference Figure 2 The inner walls on both sides of the liquid chamber 1 are fixedly connected with connecting rods 15, and the same evaporator body 16 is fixedly connected between the opposite sides of the two connecting rods 15. The evaporator body 16 can evaporate the anesthetic liquid in the liquid chamber 1, so that the anesthetic liquid can be quickly evaporated into anesthetic gas. The bottom of the evaporator body 16 is fixedly connected with a plurality of evenly distributed evaporation tubes 17. The evaporation tubes 17 can increase the contact area between the evaporator body 16 and the anesthesia device, so that more anesthetic liquid can be produced.
[0030] Working principle: When in use, start the evaporator body 16 to evaporate the anesthetic in the liquid cavity 1. When the anesthetic vapor is transported to the terminal box 2, the concentration sensor body 3 can detect the anesthetic concentration. When the anesthetic concentration is low, start the air pump 6 and close the gas distribution valve of the equipment. The air pump 6 can directly extract the anesthetic vapor in the liquid cavity 1 through the exhaust port 5 and discharge it into the terminal box 2 through the regulating port 4. At this time, the anesthetic concentration can be fine-tuned, so that the effect of strictly controlling the anesthetic concentration can be achieved.
[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An anesthetic vaporizer, comprising a liquid chamber (1), characterized in that: The top of the liquid chamber (1) is provided with an exhaust mechanism, one side of the exhaust mechanism is fixedly connected to a terminal box (2), the top inner wall of the terminal box (2) is fixedly connected to a concentration sensor body (3), the bottom inner wall of the terminal box (2) is provided with an adjustment port (4), one side outer wall of the liquid chamber (1) is provided with an exhaust port (5), one side outer wall of the liquid chamber (1) is fixedly connected to an air pump (6) covering the exhaust port (5), and the exhaust end of the air pump (6) and the inner wall of the adjustment port (4) are fixedly connected via an air pipe.
2. An anesthetic vaporizer according to claim 1, characterized in that: The air extraction mechanism comprises a pump (7) fixedly connected to the top outer wall of the liquid chamber (1); a gas delivery port (8) is provided on one side of the top outer wall of the liquid chamber (1); the air extraction end of the pump (7) and the inner wall of the gas delivery port (8) are fixedly connected via a gas delivery pipe, and the gas delivery pipe is in a T-shaped structure.
3. An anesthetic vaporizer according to claim 1, characterized in that: A two-way valve (9) is fixedly connected to the inner wall of the regulating port (4).
4. An anesthetic vaporizer according to claim 1, characterized in that: The bottom inner wall of the terminal box (2) is provided with a mounting groove (10) connected to the regulating port (4), the inner wall of the mounting groove (10) is provided with a rotatable sealing plate (11), and the sealing plate (11) covers the regulating port (4).
5. An anesthetic vaporizer according to claim 4, characterized in that: A same rotating shaft (13) is rotatably connected between the inner walls at both ends of the installation groove (10) via bearings, the rotating shaft (13) is fixedly connected to the sealing plate (11), and a same connecting spring (14) is fixedly connected between the bottom side of the sealing plate (11) away from the rotating shaft (13) and the bottom inner wall of the installation groove (10).
6. An anesthetic vaporizer according to claim 5, characterized in that: A sealing gasket (12) surrounding the regulating port (4) is fixedly connected to the bottom of the sealing plate (11), and the sealing gasket (12) is made of rubber.
7. An anesthetic vaporizer according to claim 1, characterized in that: The inner walls on both sides of the liquid chamber (1) are fixedly connected with connecting rods (15), and the same evaporator body (16) is fixedly connected between the opposite sides of the two connecting rods (15).
8. An anesthetic vaporizer according to claim 7, characterized in that: A plurality of evenly distributed evaporation tubes (17) are fixedly connected to the bottom of the evaporator body (16).