Anesthetic gas treatment equipment for anesthesiology department

Abstract

The invention relates to the technical field of anesthesiology department equipment, in particular to anesthetic gas treatment equipment for the anesthesiology department, which comprises an equipment main body, the equipment main body is provided with a gas inlet module, a gas outlet module, an adsorption treatment module and a control module, the gas inlet module comprises a monitoring assembly, and the monitoring assembly comprises a mounting bracket and a concentration sensor; the detection end of the concentration sensor faces the central axis of the air inlet module, and the concentration sensor is in signal connection with the control module; a protection structure is installed outside the concentration sensor and comprises a double-layer constant-temperature shell, the double-layer constant-temperature shell is composed of an inner layer and an outer layer, a sealing cavity is formed between the inner layer and the outer layer, the sealing cavity is filled with a phase-change material, a heating wire is wound around the outer side of the outer layer, and a first temperature sensor is installed on the inner layer. The control module controls the heating wire according to temperature data monitored by the first temperature sensor in real time, and heat conduction fins are arranged at the bottom of the protection structure. The concentration of waste anesthetic gas is rapidly and accurately detected, and meanwhile it is ensured that the sensor is in the optimal working environment.

Description

Technical Field

[0001] This invention relates to the field of anesthesiology equipment technology, specifically to an anesthetic gas processing device for anesthesiology. Background Technology

[0002] During clinical anesthesia procedures, anesthesia machines generate anesthetic waste gases containing isoflurane, sevoflurane, and other components while providing anesthetic gases to patients. Direct release of these waste gases into the operating room environment can irritate the respiratory mucosa of medical staff, and long-term exposure may lead to health risks such as damage to the hematopoietic system and reproductive dysfunction. Furthermore, it can severely pollute the air quality in the operating room. Therefore, anesthetic gas treatment equipment has become an indispensable and crucial auxiliary device in operating rooms. Its core function is to efficiently adsorb and purify anesthetic waste gases, ensuring that the discharged gases meet safety standards.

[0003] However, existing anesthetic gas treatment equipment suffers from two major technical defects in practical applications, severely restricting its treatment effect and safety: delayed and inaccurate concentration monitoring response. Currently, the concentration sensors in most devices are fixed at the rear exhaust port, with a straight-line distance exceeding 1.5 meters from the front inlet. Anesthetic waste gas must flow through the entire adsorption chain before it can be detected. When a sudden change in gas concentration occurs at the inlet (such as pipeline leakage or adsorbent saturation), the sensor response time often reaches 8-12 seconds, failing to trigger an over-limit alarm in time, leading to a significant increase in the risk of waste gas leakage. Simultaneously, the sensors lack a constant-temperature protection structure, causing fluctuations in the internal temperature due to heat dissipation effects. Since the core detection element of the sensor is temperature-sensitive, this ultimately leads to concentration detection errors, failing to provide reliable data for equipment operation and control.

[0004] Furthermore, while some devices have attempted to improve individual defects, such as increasing the spacing between heat sinks or improving sensor sensitivity, none of these methods can fundamentally solve the problem of multiple defects overlapping. Therefore, developing an anesthetic gas processing device with rapid and accurate monitoring, constant temperature protection, and efficient heat dissipation linkage functions has become an urgent technical need to be addressed in the field of anesthesiology equipment. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides an anesthetic gas treatment device for anesthesiology departments. Through an integrated structural design incorporating pre-monitoring, constant temperature protection, and coordinated heat dissipation, it enables rapid and accurate detection of anesthetic waste gas concentration. Simultaneously, it ensures the sensors operate in optimal conditions, improving the waste gas treatment efficiency and operational safety of the main unit, effectively reducing the risk of anesthetic waste gas leakage, and safeguarding the health of operating room medical staff and environmental quality.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: An anesthetic gas treatment device for anesthesiology departments includes a main body of the device. The main body of the device is equipped with an inlet module for receiving anesthetic waste gas, an outlet module for discharging purified gas, an adsorption treatment module for adsorbing anesthetic gas components, and a control module for controlling the operation of the main body of the device. The inlet module includes a monitoring component, which includes a mounting bracket and several concentration sensors. The mounting bracket has a ring structure and is coaxially fixedly connected to the inlet module. The concentration sensors are evenly distributed along the circumference of the mounting bracket, and the detection end of the concentration sensor faces the central axis of the inlet module. The concentration sensors are signal-connected to the control module.

[0007] The concentration sensor is equipped with a protective structure, which includes a double-layer constant temperature shell adapted to each concentration sensor. The double-layer constant temperature shell consists of an inner layer and an outer layer, forming a sealed cavity between the inner and outer layers. The sealed cavity is filled with a phase change material. A heating wire is wound around the outer side of the outer layer, and a first temperature sensor is installed in the inner layer. The first temperature sensor and the heating wire are connected to the control module. The control module controls the heating wire based on the temperature data monitored in real time by the first temperature sensor. A heat-conducting fin is integrally formed at the bottom of the protective structure, extending into the heat dissipation area inside the main body of the device.

[0008] Furthermore, the air intake module also includes a flow guiding component, which includes an arc-shaped flow guiding plate corresponding to the concentration sensor. The concave surface of the arc-shaped flow guiding plate faces the air intake end of the air intake module, and the convex surface of the arc-shaped flow guiding plate faces the detection end of the concentration sensor. The arc-shaped flow guiding plate is fixedly connected to the inner wall of the main body of the equipment, and the end of the arc-shaped flow guiding plate away from the air intake module extends to the adsorption treatment module.

[0009] Furthermore, the main body of the equipment is equipped with a heat dissipation component, which includes a spiral heat guide fin and several sets of variable speed fans. The spiral heat guide fin is spirally wrapped around the outside of the adsorption processing module, and several arc-shaped guide grooves are opened on the surface of the spiral heat guide fin. The variable speed fans are respectively installed on the side wall of the main body of the equipment, and the air inlet end of the spiral heat guide fin corresponds to the air outlet end of the variable speed fan. The variable speed fan sets are all connected to the control module signal.

[0010] Furthermore, the heat dissipation component and the monitoring component form a sensor-triggered linkage, and the control module is used to adjust the speed of the variable speed fan group based on the real-time concentration data monitored by the concentration sensor.

[0011] When the concentration data is less than the first concentration threshold preset in the control module, the variable speed fan group operates at the first speed threshold; when the concentration data is greater than the first concentration threshold, the variable speed fan group increases to the second speed threshold.

[0012] When the concentration data exceeds the second concentration threshold, the variable speed fan group increases to the third speed threshold, and the control module triggers the adsorption treatment module.

[0013] Furthermore, the adsorption treatment module includes a shell, inside which are a main adsorption chamber, a backup adsorption chamber, a load adjustment linkage component and a heat transfer carrier. Both the main adsorption chamber and the backup adsorption chamber are filled with activated carbon-molecular sieve composite adsorbent. The main adsorption chamber and the backup adsorption chamber are connected. The main adsorption chamber is connected to a gas flow channel. The end of the gas flow channel away from the main adsorption chamber is connected to the air inlet module.

[0014] The load regulation linkage component includes a pressure sensor and a solenoid valve. The pressure sensor is installed on the inner wall of the gas flow channel in the main adsorption chamber and is used to monitor the gas pressure data in the gas flow channel in real time. The solenoid valve is installed at the connection between the main adsorption chamber and the backup adsorption chamber. Both the pressure sensor and the solenoid valve are connected to the control module. The control module is used to control the opening and closing of the solenoid valve according to the concentration data monitored by the concentration sensor and the pressure data monitored by the pressure sensor.

[0015] When the concentration data is greater than the second concentration threshold and the pressure data is greater than the preset pressure threshold in the control module, the control module triggers the solenoid valve to open, thereby diverting the anesthetic waste gas into the backup adsorption chamber.

[0016] Furthermore, a linkage assembly is installed between the protective structure and the heat dissipation component. The linkage assembly includes several electric telescopic rods and guide sliders. One end of each electric telescopic rod is hinged to the housing, and the other end of each electric telescopic rod is hinged to the guide slider. Several mounting plates are installed axially on the side wall of the spiral heat dissipation fin. Each mounting plate has a groove adapted to the guide slider on the side away from the spiral heat dissipation fin. The guide slider slides in the groove. The electric telescopic rod is connected to the control module via signal.

[0017] A second temperature sensor is installed inside the housing of the second temperature sensor. The second temperature sensor is connected to the control module via a signal connection. The control module is used to control the electric telescopic rod based on the real-time temperature data monitored by the second temperature sensor.

[0018] When the temperature inside the housing exceeds the preset temperature threshold range in the control module, the control module controls the electric telescopic rod to extend, thereby causing the electric telescopic rod to drive the spiral heat dissipation fins to fit against the outer wall of the housing.

[0019] When the temperature data is less than the temperature threshold range, the control module controls the electric telescopic rod to retract, causing the spiral heat sink to detach from the outer wall of the housing.

[0020] Furthermore, the main body of the equipment is also equipped with an early warning module, which includes an indicator light and a buzzer. Both the indicator light and the buzzer are connected to the control module for signal transmission.

[0021] When the concentration data exceeds the second concentration threshold, the control module sends a command to the warning module to trigger the indicator light to flash red and the buzzer to sound continuously.

[0022] When the temperature data exceeds the preset temperature threshold range, the control module triggers the warning module to activate the indicator light to stay on yellow and the buzzer to sound intermittently.

[0023] When the pressure data exceeds the preset pressure threshold, the control module triggers the warning module to flash the orange indicator light and sound the buzzer briefly.

[0024] Furthermore, a self-cleaning component is installed inside the main body of the equipment. The self-cleaning component includes a vibrator fixedly connected to the surface of the spiral heat sink, a drawer-type dust collection box located at the bottom of the main body of the equipment, and a dust sensor for detecting the dust concentration inside the main body of the equipment. Both the vibrator and the dust sensor are connected to the control module. The control module is used to trigger the vibrator based on the real-time dust concentration data detected by the dust sensor.

[0025] When the dust concentration exceeds the preset dust concentration threshold in the control module, the control module triggers the vibrator to start and simultaneously controls the variable speed fan group to run in reverse at the first speed threshold to assist in cleaning, so that the dust falls into the dust collection box under the action of gravity.

[0026] Furthermore, the bottom of the main body of the equipment is equipped with casters with braking function, and a push rod is provided on one side of the main body of the equipment.

[0027] Furthermore, the main body of the equipment is equipped with an environmental monitoring module for monitoring the temperature and humidity of the environment in which the main body of the equipment is located and for monitoring whether there is any leakage of harmful gases. The environmental monitoring module includes a third temperature sensor, a humidity sensor and a gas composition sensor, all of which are connected to the control module.

[0028] The above approach has the following beneficial effects:

[0029] 1. This solution achieves rapid and accurate monitoring of anesthetic waste gas concentration through a front-mounted ring sensor and a double-layer constant temperature protection structure. Compared with traditional technologies where the sensor is fixed at the rear exhaust port and there is no constant temperature design, the concentration detection response time is shortened, and the measurement error when the temperature fluctuates is reduced. This ensures that the alarm for exceeding the emission standard is triggered in a timely manner, giving medical staff enough time to deal with the risk of leakage and greatly improving the safety of the operating room environment.

[0030] 2. This solution constructs a heat dissipation and cleaning system consisting of spiral heat dissipation, sensor-linked variable speed fan, and self-cleaning components. Compared with traditional technology that relies on a side-mounted single fan to directly blow on a flat heat sink (which is prone to dust accumulation and blockage, and has many heat dissipation dead zones), the heat exchange area of ​​the spiral heat sink is increased. Combined with the concentration-linked speed regulation design of the variable speed fan, the internal temperature of the main body of the equipment is kept stable within the preset temperature during continuous operation, which is lower than that of traditional equipment.

[0031] The self-cleaning component achieves automated cleaning of accumulated dust through vibration peeling and reverse blowing, which extends the clogging cycle of the spiral heat sink and reduces the frequency of manual maintenance. At the same time, it avoids the decrease in adsorbent activity due to high temperature and improves the adsorption efficiency maintenance rate.

[0032] 3. This solution creates a safety assurance system that combines multi-parameter linkage early warning with environmental adaptive control. Compared with traditional technologies where each module operates independently and can only be used for post-event troubleshooting, this solution integrates multiple types of data such as concentration, temperature, pressure, dust, ambient temperature and humidity, and gas leaks through the control module, to achieve closed-loop control from anomaly prediction to graded early warning and finally precise handling.

[0033] The environmental monitoring module can detect anesthetic gas leaks in the shortest possible time, earlier than traditional manual inspections. When multiple anomalies overlap, it ensures orderly and efficient risk management, providing dual protection for the health of operating room medical staff and the stable operation of the main equipment. The overall operational stability of the main equipment is improved compared to traditional technologies.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1 This is an isometric view of an embodiment of the anesthetic gas processing device for anesthesiology of the present invention;

[0036] Figure 2 This is a top view of an embodiment of the anesthetic gas processing device for anesthesiology of the present invention;

[0037] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0038] Figure 4 This is a front view of the air intake module in an embodiment of the anesthetic gas processing device for anesthesiology of the present invention.

[0039] The reference numerals in the accompanying drawings of the instruction manual include: 1. Main body of the equipment; 2. Air inlet module; 3. Air outlet module; 4. Mounting bracket; 5. Concentration sensor; 6. Protective structure; 7. Variable speed fan assembly; 8. Housing; 801. Gas flow channel; 9. Electric telescopic rod; 10. Mounting plate; 11. Dust collection box; 12. Casters; 13. Push rod. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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.

[0043] The following detailed description illustrates the specific implementation method:

[0044] Example 1:

[0045] As attached Figures 1 to 4 As shown: An anesthetic gas treatment device for anesthesiology department includes a device body 1, a movable wheel 12 with braking function at the bottom of the device body 1, and a push rod 13 on one side of the device body 1.

[0046] The main body of the equipment 1 is equipped with an air intake module 2 for receiving anesthetic waste gas, an air outlet module 3 for discharging purified gas, an adsorption treatment module for adsorbing anesthetic gas components, and a control module for controlling the operation of the main body of the equipment 1. The air intake module 2 includes a monitoring component, which includes a mounting bracket 4 and several concentration sensors 5. The mounting bracket 4 is a ring structure and is coaxially fixedly connected to the air intake module 2. The concentration sensors 5 are evenly distributed around the mounting bracket 4, and the detection end of the concentration sensor 5 faces the central axis of the air intake module 2. The concentration sensors 5 are connected to the control module for signal transmission.

[0047] A protective structure 6 is installed outside the concentration sensor 5. The protective structure 6 includes a double-layer constant temperature shell adapted to each concentration sensor 5. The double-layer constant temperature shell consists of an inner layer and an outer layer, and a sealed cavity is formed between the inner layer and the outer layer. The sealed cavity is filled with a phase change material. A heating wire is wound around the outer side of the outer layer. A first temperature sensor is installed in the inner layer. The first temperature sensor and the heating wire are connected to the control module. The control module controls the heating wire according to the temperature data monitored in real time by the first temperature sensor. A heat-conducting fin is integrally formed at the bottom of the protective structure 6, extending into the heat dissipation area inside the main body 1 of the device.

[0048] The air intake module 2 also includes a flow guiding component, which includes an arc-shaped flow guiding plate corresponding to the concentration sensor. The concave surface of the arc-shaped flow guiding plate faces the air intake end of the air intake module 2, and the convex surface of the arc-shaped flow guiding plate faces the detection end of the concentration sensor 5. The arc-shaped flow guiding plate is fixedly connected to the inner wall of the main body 1 of the equipment, and the end of the arc-shaped flow guiding plate away from the air intake module 2 extends to the adsorption treatment module.

[0049] The main body 1 of the equipment is equipped with a heat dissipation component, which includes a spiral heat dissipation fin and several sets of variable speed fans 7. The spiral heat dissipation fin is spirally wrapped around the outside of the adsorption treatment module, and several arc-shaped guide grooves are opened on the surface of the spiral heat dissipation fin. The variable speed fans 7 are respectively installed on the side wall of the main body 1 of the equipment. The air inlet end of the spiral heat dissipation fin corresponds to the air outlet end of the variable speed fan 7. The variable speed fans 7 are all connected to the control module signal.

[0050] The heat dissipation component and the monitoring component form a sensor-triggered linkage. The control module is used to adjust the speed of the variable speed fan group 7 according to the real-time concentration data monitored by the concentration sensor 5: when the concentration data is less than the first concentration threshold preset in the control module, the variable speed fan group 7 operates at the first speed threshold; when the concentration data is greater than the first concentration threshold, the variable speed fan group 7 increases to the second speed threshold; when the concentration data is greater than the second concentration threshold, the variable speed fan group 7 increases to the third speed threshold, and at the same time, the control module triggers the adsorption treatment module.

[0051] The adsorption treatment module includes a housing 8, inside which are a main adsorption chamber, a backup adsorption chamber, a load regulation linkage component, and a heat transfer carrier. Both the main adsorption chamber and the backup adsorption chamber are filled with activated carbon-molecular sieve composite adsorbent. The main adsorption chamber and the backup adsorption chamber are connected. The main adsorption chamber is connected to a gas flow channel 801. The end of the gas flow channel 801 away from the main adsorption chamber is connected to the air inlet module 2. The load regulation linkage component includes a pressure sensor and a solenoid valve. The pressure sensor is installed on the inner wall of the gas flow channel 801 in the main adsorption chamber. The pressure sensor is used to monitor the gas pressure data in the gas flow channel 801 in real time. The solenoid valve is installed at the connection between the main adsorption chamber and the backup adsorption chamber. Both the pressure sensor and the solenoid valve are connected to the control module. The control module is used to control the opening and closing of the solenoid valve according to the concentration data monitored by the concentration sensor 5 and the pressure data monitored by the pressure sensor. When the concentration data is greater than a second concentration threshold and the pressure data is greater than the preset pressure threshold in the control module, the control module triggers the solenoid valve to open, thereby diverting the anesthetic waste gas into the backup adsorption chamber.

[0052] A linkage assembly is installed between the protective structure 6 and the heat dissipation component. The linkage assembly includes several electric telescopic rods 9 and guide sliders. One end of each electric telescopic rod 9 is hinged to the housing 8, and the other end of each electric telescopic rod 9 is hinged to the guide slider. Several mounting plates 10 are installed axially on the sidewall of the spiral heat dissipation fin. Each mounting plate 10 has a groove adapted to the guide slider on the side away from the spiral heat dissipation fin. The guide slider slides in the groove. The electric telescopic rods 9 are connected to the control module. A second temperature sensor is installed inside the housing 8. The second temperature sensor is connected to the control module. The control module controls the electric telescopic rods 9 based on the real-time temperature data monitored by the second temperature sensor: when the temperature data inside the housing 8 is greater than the preset temperature threshold range in the control module, the control module controls the electric telescopic rods 9 to extend, thereby causing the electric telescopic rods 9 to drive the spiral heat dissipation fin to fit against the outer wall of the housing 8; when the temperature data is less than the temperature threshold range, the control module controls the electric telescopic rods 9 to retract, causing the spiral heat dissipation fin to detach from the outer wall of the housing 8.

[0053] The specific implementation process is as follows: Push the push rod 13 on one side of the main body 1, and use the bottom-mounted casters 12 with brakes to move the main body 1 to the designated position next to the anesthesia machine in the operating room. Depress the brake mechanism of the casters 12 to fix the main body 1 and prevent displacement during operation. Seal and connect the exhaust pipe of the anesthesia machine to the air intake module 2 of the main body 1 to ensure that there is no gas leakage at the interface; at the same time, connect the exhaust module 3 to the operating room exhaust system through a pipe to complete the gas flow path.

[0054] The control module presets the core operating parameters: the first concentration threshold is the upper limit of the safe treatment concentration of anesthetic waste gas, the second concentration threshold is the warning concentration of exceeding the standard, the first speed threshold is the basic heat dissipation speed, the second speed threshold is the medium load heat dissipation speed, the third speed threshold is the high load heat dissipation speed, the pressure threshold is the critical value of the adsorption chamber load saturation, and the temperature threshold range of the double-layer constant temperature shell is 23℃-33℃.

[0055] After the anesthesia machine is started, the anesthetic waste gas continuously enters the main body 1 of the equipment through the air intake module 2. Downstream of the air outlet of the air intake module 2, the arc-shaped guide plate plays a key role - its concave surface faces the air intake end, so that the diffused waste gas forms a converging airflow, which is guided along the convex surface of the arc-shaped guide plate to the detection end of the concentration sensor 5 directly opposite, avoiding detection delay caused by disorderly diffusion of waste gas inside the main body 1 of the equipment.

[0056] Multiple concentration sensors 5 synchronously collect exhaust gas concentration data and transmit it to the control module in real time. The control module performs average calculation on multiple sets of data to ensure accurate detection results. Meanwhile, the double-layer constant-temperature shell maintains a constant temperature through the synergy of heating wires and phase change materials: when the control module determines that the temperature data monitored in real time by the first temperature sensor inside the double-layer constant-temperature shell is below 23℃, the control module activates the heating wire, and the inner layer of the double-layer constant-temperature shell quickly transfers heat to the first temperature sensor; when the heat generated by the operation of the main body 1 raises the temperature inside the double-layer constant-temperature shell to 33℃, the phase change material in the sealed cavity begins to absorb heat and turns into a liquid state, absorbing excess heat. Combined with the initial heat conduction by the heat-conducting fins extending from the bottom to the heat dissipation area, the temperature remains within a stable range of 23℃-33℃.

[0057] The qualified waste gas (concentration ≤ first concentration threshold) smoothly enters the main adsorption chamber of the adsorption treatment module along the extension end of the arc-shaped guide plate. The pressure sensor in the gas flow channel 801 monitors the gas pressure in real time. The activated carbon-molecular sieve composite adsorbent in the main adsorption chamber efficiently adsorbs the anesthetic gas components. The control module controls the adsorption unit drive mechanism to operate at the basic speed according to the concentration data, ensuring that the adsorbent and waste gas are in full contact. The purified gas is discharged into the exhaust system through the exhaust module 3.

[0058] The control module adjusts the speed of the variable speed fan group 7 according to the real-time data of the concentration sensor 5: when the concentration is ≤ the first concentration threshold, the variable speed fan group 7 operates at the first speed threshold. The airflow enters from the side wall of the main body 1 and forms a spiral airflow along the arc-shaped guide groove on the surface of the spiral guide heat sink, which efficiently removes the basic heat generated by the adsorption treatment module and the control module. The spiral structure avoids the airflow dead zone problem of traditional planar heat sinks and improves heat dissipation efficiency. When the workload of the anesthesia machine increases and the exhaust gas concentration rises to between the first and second concentration thresholds, the variable speed fan group 7 is simultaneously increased to the second speed threshold to enhance the heat dissipation power.

[0059] When a minor leak occurs in the anesthesia machine's tubing or a sudden change in the patient's respiratory parameters causes the exhaust gas concentration to rise sharply above the second concentration threshold, the control module triggers the variable speed fan group 7 to immediately increase to the third speed threshold. High-intensity heat dissipation ensures that the adsorption treatment module maintains a stable temperature under high load. The control module compares the concentration data with the airflow pressure fed back by the pressure sensor in real time. When the concentration is greater than the second concentration threshold and the pressure is greater than the pressure threshold, the solenoid valve between the main adsorption chamber and the backup adsorption chamber is immediately triggered to open, and part of the exhaust gas is diverted to the backup adsorption chamber to avoid incomplete treatment due to overload of the main adsorption chamber.

[0060] When the main body 1 operates under high load, causing the temperature inside the housing 8 to exceed 33°C, the signal from the second temperature sensor triggers the linkage component to start: the control module instructs the drive component of the electric telescopic rod 9 to operate, the electric telescopic rod 9 extends and slides along the groove of the spiral heat dissipation fin through the guide slider, pushing the spiral heat dissipation fin closer to the housing 8 until the spiral heat dissipation fin is tightly attached to the outer layer of the housing 8. At this time, the efficient heat dissipation capacity of the spiral heat dissipation fin is transferred through the contact surface. When the temperature inside the housing 8 drops to 30°C, the electric telescopic rod 9 retracts, causing the spiral heat dissipation fin to detach from the housing 8, returning to the normal heat dissipation state.

[0061] When the adsorbent in the main adsorption chamber is close to saturation and the pressure in the gas flow channel 801 continues to rise above the pressure threshold, the control module will trigger the solenoid valve to open even if the concentration does not exceed the standard, in order to prevent excessive emissions caused by adsorbent failure.

[0062] After the surgery, the anesthesia machine is turned off. Once the air intake module 2 has no more exhaust gas, the control module controls the main body of the equipment 1 to enter a delayed shutdown mode: the concentration sensor 5 continuously monitors for 3 minutes, and after confirming that the concentration is ≤10ppm, the adsorption treatment module stops running and the solenoid valve closes; the variable speed fan group 7 runs at the first speed threshold for 5 minutes to dissipate residual heat inside the main body of the equipment 1, and then stops; the heating wire maintains low power operation until the temperature of the double-layer constant temperature shell drops to 25℃ to ensure that the phase change material is completely solidified and to extend its service life.

[0063] Example 2:

[0064] The difference from Embodiment 1 is that the main body 1 of the device is also equipped with an early warning module, which includes an indicator light and a buzzer. Both the indicator light and the buzzer are connected to the control module. When the concentration data is greater than the second concentration threshold, the control module sends a command to the early warning module to trigger the indicator light to flash red and the buzzer to sound continuously. When the temperature data is greater than the preset temperature threshold range, the control module sends a command to the early warning module to trigger the indicator light to light up yellow and the buzzer to sound intermittently. When the pressure data is greater than the preset pressure threshold, the control module sends a command to the early warning module to trigger the indicator light to flash orange and the buzzer to sound briefly.

[0065] The specific implementation process is as follows: Similar to Example 1, push the main body 1 of the equipment to the designated position and fix it by braking the moving wheel 12 to complete the sealing connection between the anesthesia machine exhaust pipe and the air intake module 2, and the connection between the exhaust module 3 and the operating room exhaust system.

[0066] Input the same concentration, rotation speed, pressure, and temperature thresholds as in Example 1 into the control module operation panel, and specify the warning trigger logic parameters: red indicator light flashing frequency, buzzer continuous sound duration with no upper limit (until the abnormality is resolved); yellow indicator light is in constant light mode, buzzer sounds intermittently; orange indicator light flashing frequency, buzzer short sound mode.

[0067] When the concentration data is ≤ the first concentration threshold, the temperature of the double-layer constant temperature shell is between 23℃ and 33℃ (temperature threshold range), and the pressure data is ≤ the pressure threshold, the main body 1 of the equipment is in normal operation: the variable speed fan group 7 of the heat dissipation component operates at the first speed threshold, the main adsorption chamber of the adsorption treatment module works independently, all indicator lights of the warning module are off, and the buzzer is silent. At this time, the phase change material in the sealed cavity and the heating wire work together to maintain the sensor constant temperature, ensuring accurate detection data.

[0068] The early warning module triggers corresponding alarm modes based on different parameter anomaly types, and simultaneously coordinates with other modules to perform handling actions, specifically in three scenarios:

[0069] When a leak in the anesthesia machine tubing or an adjustment to the patient's anesthesia depth causes a sudden increase in the exhaust gas concentration of the intake module 2, and the average data from the concentration sensor 5 exceeds the second concentration threshold, the control module sends a command to the warning module. The red indicator light flashes, and the buzzer sounds a continuous alarm. The variable-speed fan group 7 immediately increases its speed from the base speed to the third speed threshold, and the solenoid valve opens to divert the exhaust gas to the backup adsorption chamber, preventing overload of the main adsorption chamber. After hearing the continuous alarm and observing the flashing red indicator light, medical staff immediately check the concentration value on the control module display to determine the cause of the anomaly. Once the concentration naturally returns to a safe range, the warning automatically cancels, requiring no manual intervention.

[0070] The continuous high-load operation of the main body of the equipment leads to increased heat dissipation pressure. When the second temperature sensor detects that the temperature inside the housing 8 exceeds 33℃ (the upper limit of the temperature threshold), the control module triggers an alarm: a yellow indicator light remains constantly lit, a buzzer sounds intermittently, and the linkage component—the electric telescopic rod 9—extends to push the spiral heat-dissipating fins to fit tightly against the housing 8, enhancing heat conduction. Medical staff can identify the temperature abnormality through the constantly lit yellow indicator light. After checking the temperature data, they can manually increase the fan speed to ultra-high speed through the control module to assist in cooling down to a safe range. Afterward, the alarm module returns to standby mode.

[0071] When the activated carbon-molecular sieve composite adsorbent in the main adsorption chamber is nearing saturation, the gas pressure in gas flow channel 801 increases. When the pressure sensor reading exceeds the pressure threshold, regardless of whether the concentration exceeds the limit, the control module triggers an alarm: the orange indicator light flashes, the buzzer activates a short-beep mode, and the solenoid valve automatically opens to divert some waste gas to the backup adsorption chamber, relieving pressure in the main adsorption chamber. The orange alarm signal indicates that the adsorbent needs to be replaced. Medical personnel can close the inlet valve of the main body 1 of the device and open the end cover of the adsorption treatment module housing 8 after the current surgery to replace the saturated adsorbent in the main adsorption chamber.

[0072] Example 3:

[0073] The difference from Embodiment 2 is that a self-cleaning component is also installed inside the main body 1 of the device. The self-cleaning component includes a vibrator fixedly connected to the surface of the spiral heat sink, a drawer-type dust collection box 11 located at the bottom of the main body 1 of the device, and a dust sensor for detecting the dust concentration inside the main body 1 of the device. Both the vibrator and the dust sensor are connected to the control module. The control module is used to trigger the vibrator according to the dust concentration data detected in real time by the dust sensor. When the dust concentration is greater than the preset dust concentration threshold in the control module, the control module triggers the vibrator to start and controls the variable speed fan group 7 to run in reverse at the first speed threshold to assist in cleaning, so that the dust falls into the dust collection box 11 under the action of gravity.

[0074] The specific implementation process is as follows: After the anesthetic waste gas enters through the air intake module 2, the arc-shaped guide plate guides the airflow to the detection end of the concentration sensor 5. The sensor, the second temperature sensor, the pressure sensor, and the dust sensor simultaneously collect data and transmit it to the control module. At this time, the self-cleaning component is in standby mode: the vibrator is powered off, the drawer-type dust collection box 11 is closed, the dust sensor monitors the dust concentration in the heat dissipation area in real time, and the variable speed fan group 7 runs in the forward direction according to the concentration data (conventional heat dissipation direction).

[0075] During the operation of the main body of the equipment 1, dust carried by the airflow through the heat dissipation components easily adheres to the surface of the spiral guide heat sink and the arc-shaped guide groove. The dust sensor continuously collects concentration data. When the dust concentration in the heat dissipation area gradually increases but does not reach the threshold, the control module only records the data and does not trigger a cleaning action. The early warning module remains in standby mode to ensure that normal operation is not disturbed.

[0076] When the dust sensor detects that the dust concentration in the heat dissipation area exceeds the dust concentration threshold, the control module immediately triggers the self-cleaning process, simultaneously coordinating with the heat dissipation components and the early warning module: A start command is sent to the vibrator, causing it to vibrate and mechanically remove accumulated dust from the surface of the spiral heat dissipation fins and the guide grooves, preventing dust from clogging the air ducts; the variable speed fan group 7 stops its forward operation and switches to reverse operation at the first speed threshold, creating an airflow from inside the main body 1 to the outside, blowing the removed dust away from the spiral heat dissipation fins; the yellow indicator light on the early warning module flashes slowly (unlike the constant light of a temperature abnormality), and the buzzer is silenced to avoid interfering with surgical procedures. The removed dust, under the influence of vibration inertia and the reverse airflow, detaches from the spiral heat dissipation fins, slides down the inner wall of the main body 1, and falls into the drawer-type dust collection box 11 at the bottom under gravity. The transparent observation window of the drawer-type dust collection box 11 allows for direct viewing of the accumulated dust. The control module receives real-time feedback data from the dust sensor. Once the cleaning process ends, the vibrator stops, the variable speed fan group 7 resumes forward operation, the yellow indicator light on the early warning module turns off, and the self-cleaning components return to standby mode.

[0077] When the dust concentration exceeds the dust concentration threshold and the exhaust gas concentration exceeds the second concentration threshold, the control module performs priority scheduling: first, it triggers a concentration over-limit warning (red indicator light flashes + buzzer sounds continuously), and at the same time controls the variable speed fan group 7 to run in the forward direction at the third speed threshold to enhance heat dissipation. After the exhaust gas concentration drops below the second concentration threshold, it immediately switches the fan to the first speed threshold to run in the reverse direction, and simultaneously starts the vibrator to perform cleaning, ensuring that high-load heat dissipation and dust removal are carried out in an orderly manner.

[0078] Example 4:

[0079] The difference from Embodiment 3 is that the main body 1 of the device is also equipped with an environmental monitoring module for monitoring the temperature and humidity of the environment in which the main body 1 of the device is located and whether there is any leakage of harmful gases. The environmental monitoring module includes a third temperature sensor, a humidity sensor and a gas composition sensor, all of which are connected to the control module.

[0080] The specific implementation process is as follows: After the main body of the equipment 1 is started, the environmental monitoring module and the original monitoring components operate synchronously: the third temperature sensor and humidity sensor collect the temperature and humidity data of the operating room environment every 2 seconds, and the gas composition sensor collects the gas composition data of the surrounding air every 1 second; at the same time, the concentration sensor 5 monitors the concentration of the intake and exhaust gas, the second temperature sensor monitors the temperature of the shell 8, and the dust sensor monitors the dust accumulation in the heat dissipation area. All data are transmitted to the control module in real time.

[0081] The control module dynamically adjusts the operating status of the main body 1 of the equipment based on environmental monitoring data: When the ambient temperature and humidity of the operating room are within a suitable range, the heat dissipation component adaptively adjusts its speed according to the exhaust gas concentration, the heating wire of the double-layer constant temperature shell maintains a low-power constant temperature mode, and the self-cleaning component triggers cleaning according to the dust accumulation concentration; when the ambient temperature rises to the suitable upper limit, the control module automatically increases the base speed of the variable speed fan group 7 from the first speed threshold to the second speed threshold, and at the same time controls the electric telescopic rod 9 to shorten the distance between the spiral guide heat dissipation fins and the constant temperature shell, thereby enhancing heat dissipation efficiency and ensuring the internal temperature of the main body 1 of the equipment is stable; when the ambient humidity rises to above the suitable upper limit, the control module triggers the vibrator of the self-cleaning component to operate intermittently at a low frequency to prevent dust from accumulating and adhering to the surface of the spiral guide heat dissipation fins due to the humid environment.

[0082] The gas composition sensor monitors the environment for anesthetic gas leaks in real time. When the detected concentration is ≤10ppm, the warning module remains on standby. The self-cleaning component triggers the cleaning action normally according to the dust concentration. During the cleaning process, the airflow generated by the fan running in reverse will not interfere with the detection accuracy of the gas composition sensor. The two achieve conflict-free operation through the timing scheduling of the control module.

[0083] When the gas composition sensor detects that the concentration of anesthetic gas in the environment has risen above the leakage threshold, the control module immediately initiates a three-level linkage: the red indicator light on the warning module flashes rapidly, and the buzzer sounds continuously; the solenoid valve of the adsorption treatment module remains open to enhance the waste gas treatment capacity, while the flow monitoring threshold of the intake module 2 is lowered; if the intake flow drops sharply, it indicates a leak in the anesthesia machine tubing; the self-cleaning component suspends operation, and all variable speed fans 7 operate at the third speed threshold in the positive direction, driven by the airflow inside the main body 1, accelerating the leakage gas to converge towards the exhaust module 3 and discharge it into the exhaust system. Medical personnel quickly investigate based on the warning signal; once the warning is lifted, the main body 1 returns to normal operation.

[0084] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An anesthetic gas treatment device for anesthesiology, comprising a main body (1), wherein the main body (1) is equipped with an inlet module (2) for receiving anesthetic waste gas, an outlet module (3) for discharging purified gas, an adsorption treatment module for adsorbing anesthetic gas components, and a control module for controlling the operation of the main body (1), characterized in that, The intake module (2) includes a monitoring component, which includes a mounting bracket (4) and several concentration sensors (5). The mounting bracket (4) is a ring structure and is coaxially fixedly connected to the intake module (2). The concentration sensors (5) are evenly distributed around the mounting bracket (4). The detection end of the concentration sensor (5) faces the central axis of the intake module (2). The concentration sensor (5) is connected to the control module signal. A protective structure (6) is installed on the outside of the concentration sensor (5). The protective structure (6) includes a double-layer constant temperature shell adapted to each concentration sensor (5). The double-layer constant temperature shell is composed of an inner layer and an outer layer. A sealed cavity is formed between the inner layer and the outer layer. The sealed cavity is filled with a phase change material. A heating wire is wound around the outer side of the outer layer. A first temperature sensor is installed in the inner layer. The first temperature sensor and the heating wire are connected to the control module. The control module controls the heating wire according to the temperature data monitored in real time by the first temperature sensor. A heat-conducting fin is integrally formed at the bottom of the protective structure (6) and extends to the heat dissipation area inside the main body of the device (1).

2. The anesthetic gas processing device for anesthesiology departments according to claim 1, characterized in that, The air intake module (2) also includes a flow guiding component, which includes an arc-shaped flow guiding plate corresponding to the concentration sensor. The concave surface of the arc-shaped flow guiding plate faces the air intake end of the air intake module (2), and the convex surface of the arc-shaped flow guiding plate faces the detection end of the concentration sensor (5). The arc-shaped flow guiding plate is fixedly connected to the inner wall of the main body of the equipment (1), and the end of the arc-shaped flow guiding plate away from the air intake module (2) extends to the adsorption treatment module.

3. The anesthetic gas processing device for anesthesiology departments according to claim 2, characterized in that, The main body of the equipment (1) is equipped with a heat dissipation component, which includes a spiral heat dissipation fin and several sets of variable speed fan groups (7). The spiral heat dissipation fin is spirally wrapped around the outside of the adsorption treatment module, and several arc-shaped guide grooves are opened on the surface of the spiral heat dissipation fin. The variable speed fan groups (7) are respectively installed on the side wall of the main body of the equipment (1). The air inlet end of the spiral heat dissipation fin corresponds to the air outlet end of the variable speed fan group (7). The variable speed fan groups (7) are all connected to the control module signal.

4. The anesthetic gas processing device for anesthesiology departments according to claim 3, characterized in that, The heat dissipation component and the monitoring component form a sensor-triggered linkage, and the control module is used to adjust the speed of the variable speed fan group (7) according to the real-time concentration data monitored by the concentration sensor (5): When the concentration data is less than the first concentration threshold preset in the control module, the variable speed fan group (7) runs at the first speed threshold; when the concentration data is greater than the first concentration threshold, the variable speed fan group (7) increases to the second speed threshold. When the concentration data is greater than the second concentration threshold, the variable speed fan group (7) is increased to the third speed threshold and the control module triggers the adsorption treatment module.

5. The anesthetic gas processing device for anesthesiology departments according to claim 4, characterized in that, The adsorption treatment module includes a housing (8), inside which are a main adsorption chamber, a backup adsorption chamber, a load adjustment linkage component and a heat transfer carrier. Both the main adsorption chamber and the backup adsorption chamber are filled with activated carbon-molecular sieve composite adsorbent. The main adsorption chamber and the backup adsorption chamber are connected. The main adsorption chamber is connected to a gas flow channel (801). The end of the gas flow channel (801) away from the main adsorption chamber is connected to the air inlet module (2). The load regulation linkage component includes a pressure sensor and a solenoid valve. The pressure sensor is installed on the inner wall of the gas flow channel (801) of the main adsorption chamber. The pressure sensor is used to monitor the gas pressure data in the gas flow channel (801) in real time. The solenoid valve is installed at the connection between the main adsorption chamber and the backup adsorption chamber. Both the pressure sensor and the solenoid valve are connected to the control module. The control module is used to control the opening and closing of the solenoid valve according to the concentration data monitored by the concentration sensor (5) and the pressure data monitored by the pressure sensor. When the concentration data is greater than the second concentration threshold and the pressure data is greater than the preset pressure threshold in the control module, the control module triggers the solenoid valve to open, thereby diverting the anesthetic waste gas into the backup adsorption chamber.

6. The anesthetic gas processing device for anesthesiology departments according to claim 5, characterized in that, A linkage assembly is installed between the protective structure (6) and the heat dissipation assembly. The linkage assembly includes several electric telescopic rods (9) and guide sliders. One end of each electric telescopic rod (9) is hinged to the housing (8), and the other end of each electric telescopic rod (9) is hinged to the guide slider. Several mounting plates (10) are installed axially on the side wall of the spiral heat dissipation fin. Each mounting plate (10) has a groove adapted to the guide slider on the side away from the spiral heat dissipation fin. The guide slider slides in the groove. The electric telescopic rods (9) are connected to the control module via signal. A second temperature sensor is installed inside the housing (8) of the second temperature sensor. The second temperature sensor is connected to the control module. The control module is used to control the electric telescopic rod (9) based on the real-time temperature data monitored by the second temperature sensor. When the temperature data inside the housing (8) is greater than the preset temperature threshold range in the control module, the control module controls the electric telescopic rod (9) to extend, thereby the electric telescopic rod (9) drives the spiral heat dissipation fins to fit against the outer wall of the housing (8); When the temperature data is less than the temperature threshold range, the control module controls the electric telescopic rod (9) to retract, causing the spiral heat sink to detach from the outer wall of the housing (8).

7. The anesthetic gas processing device for anesthesiology departments according to claim 6, characterized in that, The main body of the equipment (1) is also equipped with an early warning module, which includes an indicator light and a buzzer. The indicator light and the buzzer are both connected to the control module signal. When the concentration data exceeds the second concentration threshold, the control module sends a command to the warning module to trigger the indicator light to flash red and the buzzer to sound continuously. When the temperature data exceeds the preset temperature threshold range, the control module triggers the warning module to activate the indicator light to stay yellow and the buzzer to sound intermittently. When the pressure data exceeds the preset pressure threshold, the control module triggers the warning module to flash the orange indicator light and sound the buzzer briefly.

8. The anesthetic gas processing device for anesthesiology departments according to claim 7, characterized in that, The main body of the equipment (1) is also equipped with a self-cleaning component. The self-cleaning component includes a vibrator fixedly connected to the surface of the spiral heat sink, a drawer-type dust collection box (11) located at the bottom of the main body of the equipment (1), and a dust sensor for detecting the dust concentration inside the main body of the equipment (1). The vibrator and the dust sensor are both connected to the control module. The control module is used to trigger the vibrator according to the real-time dust concentration data detected by the dust sensor. When the dust concentration is greater than the preset dust concentration threshold in the control module, the control module triggers the vibrator to start and controls the variable speed fan group (7) to run in reverse at the first speed threshold to clean in coordination, so that the dust falls into the dust collection box (11) under the action of gravity.

9. The anesthetic gas processing device for anesthesiology departments according to claim 8, characterized in that, The bottom of the main body of the equipment (1) is equipped with a moving wheel (12) with a braking function, and a push rod (13) is provided on one side of the main body of the equipment (1).

10. The anesthetic gas processing device for anesthesiology departments according to claim 9, characterized in that, The main body of the equipment (1) is also equipped with an environmental monitoring module for monitoring the temperature and humidity of the environment in which the main body of the equipment (1) is located and whether there is any leakage of harmful gases. The environmental monitoring module includes a third temperature sensor, a humidity sensor and a gas composition sensor. The third temperature sensor, humidity sensor and gas composition sensor are all connected to the control module.

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