Anesthetic gas purification device for anesthesiology department

Abstract

The anesthetic gas purification device for the anesthesiology department comprises an adsorption purification cylinder, an adsorption cavity is formed in the adsorption purification cylinder, the upper portion of the adsorption purification cylinder is connected with a gas inlet pipe communicating with the upper end of the adsorption cavity, and the bottom of the adsorption purification cylinder is connected with an exhaust pipe and an anesthetic gas recovery pipe which communicate with the bottom of the adsorption cavity; valves are arranged on the gas inlet pipe, the exhaust pipe and the anesthetic gas recovery pipe, an electric heating pipe is rotationally connected into the adsorption cavity, spiral heat conduction fins are arranged outside the electric heating pipe, and the adsorption cavity is filled with a particle molecular sieve; a driving cavity is formed in the position, above the adsorption cavity, in the adsorption purification barrel, a driving motor is installed in the driving cavity, a power connection rotating shaft which extends into the driving cavity and is connected with a power output shaft of the driving motor is upwards arranged at the upper end of the electric heating pipe, and an electric sliding ring which is connected with the electric rotating shaft in a sleeving mode and electrically connected with the electric rotating shaft is arranged in the driving cavity. According to the invention, the anesthesia tail gas can be efficiently purified, the adsorption material can be recycled, and the operation cost of a medical unit can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and particularly to an anesthetic gas purification device for the anesthesiology department. Background Art

[0002] In modern medical practice, the development of anesthetic techniques is crucial for the success of surgeries and the safety of patients. With the widespread application of general anesthesia, how to effectively handle the waste gas generated during the anesthetic process (i.e., anesthetic exhaust gas) has gradually become the focus of attention. Anesthetic exhaust gas mainly includes unabsorbed anesthetic drug components, such as volatile anesthetics and nitrous oxide. If these gases are directly discharged into the air, they will not only pollute the indoor air quality but also may cause long-term harm to the health of medical staff.

[0003] In order to reduce the negative impact of anesthetic exhaust gas on the environment and personnel health, it is particularly important to adopt effective purification measures. Currently, the commonly used anesthetic exhaust gas purification methods mainly remove harmful substances in the air through physical adsorption means. Activated carbon and molecular sieves are two adsorption materials most commonly used for this purpose. They have a large specific surface area and strong adsorption capacity, and can effectively capture and fix the harmful components in anesthetic exhaust gas, thereby achieving the purpose of purifying the air.

[0004] However, although activated carbon and molecular sieves show good performance in anesthetic exhaust gas purification, they also have obvious limitations. On the one hand, as the adsorption process progresses, these materials will gradually become saturated, resulting in a significant decrease in their adsorption capacity. On the other hand, existing anesthetic gas purification equipment lacks an effective reprocessing mechanism for the adsorption materials, which means that once the adsorption capacity of activated carbon or molecular sieves weakens, the purification effect can only be maintained by replacing the new adsorption materials. Summary of the Invention

[0005] The purpose of the present invention is to provide an anesthetic gas purification device for the anesthesiology department, which can not only efficiently purify anesthetic exhaust gas but also realize the recycling of adsorption materials, helping to reduce the operating costs of medical units.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: An anesthetic gas purification device for the anesthesiology department includes an adsorption and purification cylinder. An adsorption chamber is arranged inside the adsorption and purification cylinder. An air inlet pipe communicating with the upper end of the adsorption chamber is connected to the upper part of the adsorption and purification cylinder. An exhaust pipe and an anesthetic gas recovery pipe, both of which are communicated with the bottom of the adsorption chamber, are connected to the bottom of the adsorption and purification cylinder. Valves are arranged on the air inlet pipe, the exhaust pipe, and the anesthetic gas recovery pipe. An electric heating tube arranged along its height direction is rotatably connected inside the adsorption chamber. A spiral heat conduction fin is arranged outside the electric heating tube, and the bottom of the spiral heat conduction fin does not contact the bottom of the adsorption chamber. The adsorption chamber is filled with granular molecular sieves; Above the adsorption cavity in the adsorption and purification cylinder, a drive cavity is provided. A drive motor is installed in the drive cavity. The upper end of the electric heating tube is provided with an electricity-connecting rotating shaft extending upward into the drive cavity and electrically connected thereto. The power output shaft of the drive motor is connected to the electricity-connecting rotating shaft and is not electrically connected. An electric slip ring that sheathes the electricity-connecting rotating shaft and is electrically connected thereto is provided in the drive cavity.

[0007] By adopting the above technical solution, when absorbing and purifying anesthetic exhaust gas, close the valve on the anesthetic gas recovery pipe, open the valves on the air inlet pipe and the exhaust pipe, connect the anesthetic exhaust gas into the adsorption cavity through the air inlet pipe, and gradually pass through the granular molecular sieve in the adsorption cavity along the spiral heat-conducting fins, so that the anesthetic gas in the exhaust gas is fully absorbed by the granular molecular sieve, and finally the exhaust gas is discharged through the exhaust pipe. After use, for molecular sieve regeneration, close the valves on the air inlet pipe and the exhaust pipe, open the valve on the anesthetic gas recovery pipe, energize the electric heating tube to generate heat, transfer the heat to the spiral heat-conducting fins, and the drive motor works to drive the electric heating tube to drive the spiral heat-conducting fins to rotate, continuously and slowly circulating and stirring the granular molecular sieve in the adsorption cavity, so that the molecular sieve can quickly heat up and release the adsorbed anesthetic gas. The anesthetic gas then gradually enters the gas collection bag along the anesthetic gas recovery pipe for storage. After the release is completed, the electric heating tube is powered off and the drive motor stops working, so that the granular molecular sieve gradually cools down and can be regenerated, and the gas collection bag is replaced for convenient next use.

[0008] A further setting of the present invention is that the outer diameter of the spiral heat-conducting fins is smaller than the inner diameter of the adsorption cavity.

[0009] A further setting of the present invention is that the adsorption and purification cylinder is sheathed with a heat-insulating sleeve, and a gap is left between the inner wall of the heat-insulating sleeve and the outer wall of the adsorption and purification cylinder.

[0010] A further setting of the present invention is that each valve is a solenoid valve.

[0011] A further setting of the present invention is that the free end of the anesthetic gas recovery pipe is detachably connected with a gas collection bag. The free end of the anesthetic gas recovery pipe is provided with a connecting sleeve with internal threads, and the gas collection bag is provided with a connecting head threadedly connected to the connecting sleeve.

[0012] A further setting of the present invention is that a conical support seat with a larger bottom and a smaller top is provided upward at the bottom of the adsorption cavity. A rotating hole for rotatably connecting the lower end of the electric heating tube is opened at the upper end of the conical support seat.

[0013] In summary, the present invention has the following beneficial effects: The anesthesia gas purification device of the present invention uses granular molecular sieve to adsorb and purify the anesthesia gas in the anesthesia exhaust gas. The anesthesia exhaust gas gradually passes through the granular molecular sieve along the spiral heat-conducting fins in the adsorption chamber, enabling the anesthesia gas in the exhaust gas to be more fully absorbed by the granular molecular sieve. After purification is completed, the electric heating tube drives the spiral heat-conducting fins to stir and heat the granular molecular sieve, which can quickly raise the temperature of the granular molecular sieve to release the adsorbed anesthesia gas, enabling the granular molecular sieve to be regenerated and continuously used for the adsorption and purification of anesthesia exhaust gas, which helps to reduce the operating costs of medical institutions. Brief Description of the Drawings

[0014] Figure 1 is the overall structural entity of the present invention; Figure 2 is a partial cross-sectional view for showing the internal structure of the adsorption and purification cylinder; Figure 3 is a partial cross-sectional view for showing the internal structure of the adsorption and purification cylinder; Figure 4 is a cross-sectional view for showing the granular molecular sieve in the adsorption and purification cylinder.

[0015] In the figure: 1. Adsorption and purification cylinder; 11. Heat insulation sleeve; 12. Adsorption chamber; 13. Conical support seat; 14. Rotating hole; 15. Driving chamber; 21. Intake pipe; 22. Exhaust pipe; 23. Anesthesia gas recovery pipe; 24. Valve; 25. Connecting sleeve; 3. Gas collecting bag; 31. Connecting head; 4. Electric heating tube; 41. Spiral heat-conducting fin; 42. Electrically connected rotating shaft; 5. Granular molecular sieve; 6. Driving motor; 7. Electric slip ring. Detailed Description of the Preferred Embodiments

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 should not be construed as a limitation to the present invention.

[0018] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0019] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "arranged", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Example, refer to Figures 1-4 , an anesthetic gas purification device for the anesthesiology department, comprising an adsorption and purification cylinder 1. A heat insulation sleeve 11 is sleeved outside the adsorption and purification cylinder 1. There is a gap between the inner wall of the heat insulation sleeve 11 and the outer wall of the adsorption and purification cylinder 1. An adsorption chamber 12 is arranged vertically inside the adsorption and purification cylinder 1. An air inlet pipe 21 communicating with the upper end of the adsorption chamber 12 is connected to the upper part of the adsorption and purification cylinder 1. The air inlet pipe 21 is used for connecting anesthetic exhaust gas. A exhaust pipe 22 and an anesthetic gas recovery pipe 23 both communicating with the bottom of the adsorption chamber 12 are connected to the bottom of the adsorption and purification cylinder 1. A valve 24 is arranged on each of the air inlet pipe 21, the exhaust pipe 22 and the anesthetic gas recovery pipe 23. Each valve 24 is an electromagnetic valve. The free end of the anesthetic gas recovery pipe 23 is detachably connected with a gas collecting bag 3. The gas collecting bag 3 is made of a high-temperature resistant material. The free end of the anesthetic gas recovery pipe 23 is provided with a connecting sleeve 25 with an internal thread. The gas collecting bag 3 is provided with a connecting head 31 threadedly connected with the connecting sleeve 25.

[0021] An electric heating tube 4 arranged along its height direction is rotatably connected inside the adsorption chamber 12. A spiral heat conducting fin 41 is arranged outside the electric heating tube 4. A conical support seat 13 with a larger bottom and a smaller top is arranged upward from the bottom of the adsorption chamber 12. A rotating hole 14 for rotatably connecting the lower end of the electric heating tube 4 is opened at the upper end of the conical support seat 13, so that the bottom of the spiral heat conducting fin 41 does not contact the bottom of the adsorption chamber 12. The outer diameter of the spiral heat conducting fin 41 is smaller than the inner diameter of the adsorption chamber 12. Granular molecular sieve 5 is filled inside the adsorption chamber 12 to selectively absorb anesthetic gas by using the granular molecular sieve 5.

[0022] A driving chamber 15 is arranged above the adsorption chamber 1 in the adsorption and purification cylinder 1. A driving motor 6 is installed inside the driving chamber 15. An electric connection rotating shaft 42 extending into the driving chamber 15 and electrically connected thereto is arranged upward at the upper end of the electric heating tube 4. The power output shaft of the driving motor 6 is connected to the electric connection rotating shaft 42 and not electrically connected. An electric slip ring 7 sleeved on the electric connection rotating shaft 42 and electrically connected thereto is arranged inside the driving chamber 15, so that the electric heating tube 4 can still be electrically connected while in a rotating state through the electric slip ring 7.

[0023] Working principle: When carrying out anesthesia exhaust gas absorption and purification, close the valve 24 on the anesthesia gas recovery pipe 23, open the valves 24 on the air inlet pipe 21 and the exhaust pipe 22, connect the anesthesia exhaust gas into the adsorption chamber 12 through the air inlet pipe 21, and gradually pass through the granular molecular sieve 5 in the adsorption chamber 12 along the spiral heat-conducting fins 41, so that the anesthesia gas in the exhaust gas is fully absorbed by the granular molecular sieve 5, and finally the exhaust gas is discharged through the exhaust pipe 22; After use, carry out molecular sieve regeneration. Close the valves 24 on the air inlet pipe 21 and the exhaust pipe 22, open the valve 24 on the anesthesia gas recovery pipe 23, make the electric heating tube 4 generate heat, transfer the heat to the spiral heat-conducting fins 41, and drive the motor 6 to work to drive the electric heating tube 4 to drive the spiral heat-conducting fins 41 to rotate, continuously and slowly circulate and stir the granular molecular sieve 5 in the adsorption chamber 12, so that the molecular sieve can quickly heat up and release the adsorbed anesthesia gas. The anesthesia gas then gradually enters the gas collection bag 3 along the anesthesia gas recovery pipe 23 for storage. After the release is completed, the electric heating tube 4 is powered off and the motor 6 stops working, so that the granular molecular sieve 5 can be gradually cooled and then regenerated, and the gas collection bag 3 is replaced for the next use.

[0024] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An anesthetic gas purification device for the anesthesiology department, comprising an adsorption and purification cylinder (1), characterized in that: An adsorption purification cylinder (1) is provided with an adsorption chamber (12) therein. An air inlet pipe (21) communicating with the upper end of the adsorption chamber (12) is connected to the upper part of the adsorption purification cylinder (1). An exhaust pipe (22) and an anesthetic gas recovery pipe (23), both communicating with the bottom of the adsorption chamber (12), are connected to the bottom of the adsorption purification cylinder (1). Valves (24) are provided on the air inlet pipe (21), the exhaust pipe (22), and the anesthetic gas recovery pipe (23). An electric heating tube (4) arranged along its height direction is rotatably connected inside the adsorption chamber (12). A spiral heat conduction fin (41) is arranged outside the electric heating tube (4). The bottom of the spiral heat conduction fin (41) does not contact the bottom of the adsorption chamber (12). The adsorption chamber (12) is filled with granular molecular sieve (5). A driving chamber (15) is provided above the adsorption chamber (12) inside the adsorption purification cylinder (1). A driving motor (6) is installed in the driving chamber (15). An electricity-connecting rotating shaft (42) extending upward into the driving chamber (15) and electrically connected thereto is provided at the upper end of the electric heating tube (4). The power output shaft of the driving motor (6) is connected to the electricity-connecting rotating shaft (42) without electrical connection. An electric slip ring (7) sleeving the electricity-connecting rotating shaft (42) and electrically connected thereto is provided in the driving chamber (15).

2. The anesthetic gas purification device for anesthesiology department according to claim 1, characterized in that: The outer diameter of the spiral heat conduction fin (41) is smaller than the inner diameter of the adsorption chamber (12).

3. An anesthetic gas purification device for anesthesiology department according to claim 1, characterized in that: The adsorption purification cylinder (1) is sleeved with a heat insulation sleeve (11), and a gap is left between the inner wall of the heat insulation sleeve (11) and the outer wall of the adsorption purification cylinder (1).

4. An anesthetic gas purification device for anesthesiology department according to claim 1, characterized in that: Each valve (24) is a solenoid valve.

5. An anesthetic gas purification device for anesthesiology department according to claim 1, characterized in that: The free end of the anesthetic gas recovery pipe (23) is detachably connected with a gas collecting bag (3). A connecting sleeve (25) with internal threads is provided at the free end of the anesthetic gas recovery pipe (23). The gas collecting bag (3) is provided with a connecting head (31) threadedly connected to the connecting sleeve (25).

6. The anesthetic gas purification device for the anesthesiology department according to claim 1, characterized in that: A conical support base (13) with a larger bottom and a smaller top is provided upward at the bottom of the adsorption chamber (12). A rotating hole (14) for rotatably connecting the lower end of the electric heating tube (4) is opened at the upper end of the conical support base (13).

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