Internal loop sterilizer for anesthesia machine and breathing machine with double-loop system

Abstract

The utility model discloses a double-loop system anesthesia machine and breathing machine internal loop sterilizer, which comprises a case, a control unit, an atomization unit, a filter resolver, an evaporation unit and a breathing machine simulation device are arranged in the case, an air pump supplies air to an atomization generator, a water pump pumps water from a water bottle to add water to the atomization generator, and the atomization generator is connected with the evaporation unit. The liquid pump extracts disinfectant from the liquid medicine bottle to supply liquid medicine to the atomization generator, and a disinfection channel of the anaesthesia machine is formed. The high-pressure oxygen enters the evaporation bin, the pressure sensor judges the pressure, the temperature sensor judges the temperature, the liquid pump extracts the disinfectant from the liquid medicine bottle and stores the disinfectant in the liquid pump, and when the temperature and pressure conditions are met, the liquid pump injects the disinfectant into the evaporation bin to form a breathing machine disinfection channel. Through different passages, appropriate disinfection factors are provided for the anaesthesia machine and the breathing machine, one machine has two purposes, the internal loop disinfection machine of the anaesthesia machine and the breathing machine of a double-loop system is formed, the internal structure is simple and compact, efficient disinfection can be carried out, and operation is convenient and intelligent.

Description

Technical Field

[0001] This utility model relates to the field of disinfection machine technology, and in particular to a dual-circuit system anesthesia machine and a disinfection machine for the internal circuit of a ventilator. Background Technology

[0002] The internal circuits of ventilators and anesthesia machines come into direct contact with the patient's respiratory tract, making them a potential route for pathogen transmission and increasing the risk of nosocomial infections. To ensure patient safety, these devices must be thoroughly disinfected regularly to prevent cross-infection. Chemical disinfection commonly uses disinfectants such as hydrogen peroxide and glutaraldehyde, but there is a risk that residues may damage the equipment or harm the patient. High-temperature, high-pressure sterilization is suitable for heat-resistant components, but many ventilator and anesthesia machine components cannot withstand high temperatures and pressures. Ultraviolet disinfection is effective for surface disinfection but struggles to penetrate the complex internal circuitry. The working principle of internal circuit disinfection machines for anesthesia and ventilators is to use gaseous or atomized disinfectants (such as hydrogen peroxide and ozone) to penetrate deep into the equipment, ensuring comprehensive disinfection. Although some internal circuit disinfection machines for anesthesia and ventilators are now available on the market, the complexity of the internal switching gas paths has brought about issues in terms of use and product manufacturing.

[0003] Therefore, we propose a dual-circuit system anesthesia machine and a ventilator internal circuit disinfection machine. Utility Model Content

[0004] The purpose of this invention is to provide a sterilization machine for the internal circuits of anesthesia machines and ventilators that is dual-circuit, simple and compact in structure, and easy to operate, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-circuit system anesthesia machine and a ventilator internal circuit disinfection machine, including a chassis, wherein a control unit, a nebulization unit, a filter analyzer, an evaporation unit and a simulated ventilator device are arranged inside the chassis;

[0006] The atomizing unit includes a water bottle, a medicine bottle, and an atomizing generator. The water bottle has a water outlet, the medicine bottle has a medicine outlet, and the atomizing generator has a water inlet, a medicine inlet, an air inlet, and a mist outlet. The housing also houses an air pump, a water pump, and a liquid pump. The air pump is connected to the air inlet pipe and supplies air to the atomizing generator. The water outlet is connected to the water inlet pipe, and the water pump draws water from the water bottle to add water to the atomizing generator. The medicine outlet is connected to the medicine inlet pipe, and the liquid pump draws disinfectant from the medicine bottle to provide disinfectant to the atomizing generator.

[0007] The evaporation unit includes an evaporation chamber, a heater is installed at the bottom of the evaporation chamber, and a temperature sensor and a pressure sensor are installed on the evaporation chamber. The temperature sensor is used to detect the temperature in the evaporation chamber, and the pressure sensor is used to detect the pressure in the evaporation chamber. An oxygen valve is connected to the evaporation chamber via a pipeline, and the oxygen valve is used to control the access of high-pressure oxygen. The evaporation chamber is also provided with an evaporation chamber liquid inlet and an evaporation chamber gas outlet. The liquid pump is used to drive the extraction of disinfectant from the medicine bottle through the evaporation chamber liquid inlet to supply disinfectant to the evaporation chamber.

[0008] The filter analyzer is used to decompose and recover exhaust gas;

[0009] The simulated ventilator device is used to provide a virtual artificial lung to ensure that the ventilator is disinfected under normal and stable conditions.

[0010] Preferably, the surface of the casing is provided with an air supply port, a recovery port, an input end, an output end, an I port, and an E port. The air supply port is connected to the mist outlet pipeline to provide disinfectant for the anesthesia machine. The recovery port is connected to one end of the filter analyzer. The input end is connected to the oxygen valve to provide high-pressure oxygen to the evaporation chamber. The output end is connected to the air outlet of the evaporation chamber to provide disinfectant for the ventilator. The I port of the disinfection machine is connected to the air extraction port of the simulated ventilator device, and the E port of the disinfection machine is connected to the air supply port of the simulated ventilator device.

[0011] Preferably, the chassis is also equipped with a reversing valve, which has a reversing valve inlet, a reversing valve outlet 1, and a reversing valve outlet 2. The reversing valve inlet is connected to the drug outlet pipeline, and the reversing valve outlet 1 is connected to the drug injection pipeline, forming a disinfection path for the anesthesia machine. The liquid pump has a liquid pump intake port and a liquid pump injection port. The evaporation chamber is also equipped with an evaporation chamber inlet, an intake valve, and an injection valve. The reversing valve outlet 2 is connected to the evaporation chamber inlet pipeline, the intake valve is connected to the liquid pump intake port pipeline, and the liquid pump injection port is connected to the evaporation chamber injection port pipeline. The injection valve is used to control the opening and closing of the evaporation chamber injection port, forming a disinfection path for the ventilator.

[0012] Preferably, the chassis includes an upper chassis and a lower chassis, the control unit is disposed in the upper chassis, and the atomizing unit, filter analyzer, evaporation unit and simulated ventilator device are disposed in the lower chassis. The control unit includes an MCU control board disposed in the upper chassis and a touch display disposed on the surface of the upper chassis.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The touch display outputs commands to the MCU control board, which drives the air pump to supply air to the nebulizer, and drives the water pump to draw water from the water bottle and add it to the nebulizer through the water inlet, thus atomizing the medication. Simultaneously, the liquid pump draws disinfectant from the medication bottle and provides it to the nebulizer through the reversing valve outlet, forming a disinfection pathway for the anesthesia machine. The touch display outputs commands to the MCU control board, which drives the oxygen valve to open, allowing high-pressure oxygen to enter the evaporation chamber. At the same time, the pressure sensor transmits the pressure signal to the MCU... The MCU control board determines whether the pressure has reached the working pressure of 0.35MPa-0.55MPa. At this time, the MCU control board controls the heater to start heating. The temperature sensor transmits the temperature signal to the MCU control board to determine whether the temperature has reached the working temperature of 55℃-63℃. The liquid pump drives the liquid pump to draw disinfectant from the medicine bottle and store it in the liquid pump through the reversing valve outlet, the evaporation chamber inlet, the liquid dispensing valve, and the liquid pump dispensing port. When the temperature and pressure conditions are met, the dispensing valve opens, and the liquid pump injects the disinfectant into the evaporation chamber through the evaporation chamber dispensing port, forming the disinfection path of the ventilator. The disinfectant provides suitable disinfecting agents to the anesthesia machine and ventilator through different paths, making it a dual-function machine forming a dual-circuit system. It is a disinfection machine for the internal circuits of the anesthesia machine and ventilator. The internal structure is simple and compact, which can efficiently disinfect the internal circuits of the anesthesia machine and ventilator. It is convenient and intelligent to operate, reducing the time and complexity of manual operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a top view of the atomizing unit in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the atomizing unit in this utility model;

[0018] Figure 5 This is a top view of the evaporation unit in this utility model;

[0019] Figure 6 This is a diagram showing the connection of the disinfection pipeline for the anesthesia machine in this utility model.

[0020] Figure 7 This is a diagram showing the connection of the disinfection tubing for the ventilator in this utility model.

[0021] In the diagram: 1. Chassis; 2. Nebulizer unit; 3. Filter; 4. Evaporation unit; 5. Simulated ventilator device; 6. Water bottle; 7. Medication bottle; 8. Nebulizer generator; 9. Water outlet; 10. Medication outlet; 11. Water inlet; 12. Medication inlet; 13. Air inlet; 14. Mist outlet; 15. Air pump; 16. Water pump; 17. Liquid pump; 18. Evaporation chamber; 19. Heater; 20. Temperature sensor; 21. Pressure sensor; 22. Oxygen valve; 23. 24. Evaporation chamber liquid inlet; 25. Evaporation chamber gas outlet; 26. Gas delivery port; 27. Recovery port; 28. Input end; 29. ​​Output end; 20. Sterilizer I port; 31. Sterilizer E port; 32. Reversing valve; 33. Reversing valve liquid inlet; 34. Reversing valve liquid outlet one; 35. Reversing valve liquid outlet two; 36. Liquid pump liquid intake port; 37. Liquid pump liquid inlet; 38. Evaporation chamber liquid inlet; 39. Liquid intake valve; 40. Liquid injection valve; 41. MUC control board; 42. Touch display. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Please see Figure 1-5 The present invention includes a chassis 1, wherein a control unit, an atomizing unit 2, a filter analyzer 3, an evaporation unit 4, and a simulated ventilator device 5 are disposed inside the chassis 1;

[0025] The atomizing unit 2 includes a water bottle 6, a medicine bottle 7, and an atomizing generator 8. The water bottle 6 is provided with a water outlet 9, and the medicine bottle 7 is provided with a medicine outlet 10. The atomizing generator 8 is provided with a water inlet 11, a medicine inlet 12, an air inlet 13, and a mist outlet 14. The housing 1 is also provided with an air pump 15, a water pump 16, and a liquid pump 17. The air pump 15 is connected to the air inlet 13 and supplies air to the atomizing generator 8. The water outlet 9 is connected to the water inlet 11. The water pump 16 is used to drive the extraction of water from the water bottle 6 to add water to the atomizing generator 8. The medicine outlet 10 is connected to the medicine inlet 12. The liquid pump 17 is used to drive the extraction of disinfectant from the medicine bottle 7 to provide disinfectant to the atomizing generator 8.

[0026] The evaporation unit 4 includes an evaporation chamber 18, a heater 19 is provided at the bottom of the evaporation chamber 18, a temperature sensor 20 and a pressure sensor 21 are provided on the evaporation chamber 18, the temperature sensor 20 is used to detect the temperature in the evaporation chamber 18, and the pressure sensor 21 is used to detect the pressure in the evaporation chamber 18, an oxygen valve 22 is connected to the evaporation chamber 18 by a pipeline, the oxygen valve 22 is used to control the access of high-pressure oxygen, the evaporation chamber 18 is also provided with an evaporation chamber liquid inlet 23 and an evaporation chamber air outlet 24, and the liquid pump 17 is used to drive the extraction of disinfectant from the medicine bottle 7 through the evaporation chamber liquid inlet 23 to supply disinfectant to the evaporation chamber 18;

[0027] The filter analyzer 3 is used to decompose and recover the exhaust gas;

[0028] The simulated ventilator device 5 is used to provide a virtual artificial lung to ensure that the ventilator is disinfected under normal and stable conditions.

[0029] The chassis 1 includes an upper chassis and a lower chassis. The control unit is located in the upper chassis. The atomizing unit 2, the filter analyzer 3, the evaporation unit 4, and the simulated ventilator device 5 are all located in the lower chassis 1. The control unit includes an MCU control board 40 located in the upper chassis and a touch display 41 located on the surface of the upper chassis.

[0030] Specifically, in this embodiment, the chassis 1 is divided into an upper chassis and a lower chassis. The upper chassis is mainly used for the MCU control board 40 and the touch display 41. The lower chassis contains, from top to bottom, atomizing unit 2, filter analyzer 3, evaporation unit 4 and simulated ventilator device 5. The simulated ventilator device 5 is shown in Chinese Utility Model Patent 201520408013.2, which was applied for by the applicant on June 15, 2015 and authorized on November 11, 2015. However, the simulated ventilator device 5 referred to in this utility model is not limited to the specific form disclosed in that patent document. The simulated ventilator device 5 is used to provide a simulated virtual artificial lung to ensure that the ventilator is disinfected under normal and stable conditions.

[0031] Please see Figure 1-7 As shown, the surface of the chassis 1 is respectively provided with an air supply port 25, a recovery port 26, an input end 27, an output end 28, a sterilizer I port 29, and a sterilizer E port 30. The air supply port 25 is connected to the mist outlet 14 pipeline to provide disinfectant for the anesthesia machine. The recovery port 26 is connected to one end of the filter analyzer 3. The input end 27 is connected to the oxygen valve 22 to provide high-pressure oxygen to the evaporation chamber 18. The output end 28 is connected to the evaporation chamber outlet 24 to provide disinfectant for the ventilator. The sterilizer I port 29 is connected to the suction port of the simulated ventilator device 5, and the sterilizer E port 30 is connected to the air supply port of the simulated ventilator device 5.

[0032] The chassis 1 is also equipped with a reversing valve 31, which has a reversing valve inlet 32, a reversing valve outlet 1 33, and a reversing valve outlet 2 34. The reversing valve inlet 32 ​​is connected to the drug outlet 10 pipeline, and the reversing valve outlet 1 33 is connected to the drug injection port 12 pipeline, forming a disinfection passage for the anesthesia machine. The liquid pump 17 has a liquid pump take-up port 35 and a liquid pump injection port 36. The evaporation chamber 18 is also equipped with an evaporation chamber inlet 37, a take-up valve 38, and an injection valve 39. The reversing valve outlet 2 34 is connected to the evaporation chamber inlet 37 pipeline, the take-up valve 38 is connected to the liquid pump take-up port 35 pipeline, and the liquid pump injection port 36 is connected to the evaporation chamber injection port 23 pipeline. The injection valve 39 is used to control the opening and closing of the evaporation chamber injection port 23, forming a disinfection passage for the ventilator.

[0033] Specifically, in this embodiment, the disinfection conditions for the anesthesia machine are as follows: the air pump 15 is connected to the air inlet 13 via a pipeline; the water outlet 9 of the water bottle 6 is connected to the water inlet 11 via a pipeline; the liquid outlet 10 of the medicine bottle 7 is connected to the liquid inlet 32 ​​of the reversing valve via a pipeline; and the liquid outlet 33 of the reversing valve is connected to the liquid inlet 12 via a pipeline, thus forming the disinfection path for the anesthesia machine. Commands are output from the touch display 41, which in turn drives the air pump 15 to atomize the liquid through the air inlet 13 via the MCU control board 40. The generator 8 supplies air and drives the water pump 16 to draw water from the water bottle 6 and add water to the atomizing generator 8 through the water outlet 9 and the water inlet 11 to drive the atomization of the medicine. At the same time, the liquid pump 17 draws disinfectant from the medicine bottle 7 and provides medicine to the atomizing generator 8 through the medicine outlet 10, the liquid inlet of the reversing valve 32, the liquid outlet of the reversing valve 33, and the liquid inlet 12. The atomized disinfectant is discharged from the mist outlet 14 and the mist outlet 14 is connected to the air supply port 25 pipeline.

[0034] Ventilator disinfection conditions: One end of oxygen valve 22 is connected to the evaporation chamber 18 pipeline, and the other end is connected to the input end 27 pipeline. The outlet 34 of the reversing valve is connected to the evaporation chamber inlet 37 pipeline. The liquid dispensing valve 38 is connected to the liquid pump dispensing port 35 pipeline. The liquid pump injection port 36 is connected to the evaporation chamber injection port 23 pipeline. The injection valve 39 is used to control the opening and closing of the evaporation chamber injection port 23, forming a ventilator disinfection pathway. The touch display 41 outputs a command to the MCU control board 40 to control the oxygen valve 22 to open. The input end 27 is connected to the hospital's high-pressure oxygen supply, and high-pressure oxygen enters the evaporation chamber 18. At the same time, the pressure sensor 21 transmits the pressure signal to the MCU control board 40 to determine whether the pressure has reached the working pressure. The pressure is 0.35MPa-0.55MPa. Simultaneously, the MCU control board 40 controls the heater 19 to start heating, and the temperature sensor 20 transmits the temperature signal to the MCU control board 40 to determine if the temperature has reached the operating temperature of 55℃-63℃. At the same time, the liquid pump 17 is driven to draw disinfectant from the medicine bottle 7, which is then stored in the liquid pump 17 via the medicine outlet 10, the reversing valve inlet 32, the reversing valve outlet 34, the evaporation chamber inlet 37, and the liquid pump outlet 35. When the temperature and pressure conditions are met, the liquid pump 17 injects the disinfectant into the evaporation chamber 18 through the liquid pump injection port 36 and the evaporation chamber injection port 23. At this time, high-pressure oxygen carries the evaporated disinfectant out through the evaporation chamber outlet 24 and the output terminal 28. During this process, the disinfectant is first stored in the liquid pump 17 to prevent the disinfectant in the reversing valve 31 from being directly input into the high-temperature, high-pressure evaporation chamber 18, which could damage the disinfection machine parts.

[0035] Specifically, in this embodiment, the disinfection preparation of the anesthesia machine is as follows: the disinfection machine is connected to the anesthesia machine inhalation port 25 and the anesthesia machine exhalation port 26 through the anesthesia machine connecting pipeline. The anesthesia machine inhalation port 25 is connected to the anesthesia machine exhalation port 26 inside the machine casing 1. The anesthesia machine inhalation port 26 is connected to one end of the filter analyzer 3. The filter analyzer 3 performs multiple filtrations and decompositions on the recovered exhaust gas until it fully meets the national emission standards and is then discharged into the environment.

[0036] Disinfection preparation for the ventilator: Connect the disinfection machine to the hospital's high-pressure oxygen supply via the ventilator connection tubing, connect the output end 28 to the ventilator's air inlet, connect the return port 26 to the ventilator's exhaust port, connect the ventilator's port I to the disinfection machine's port I 29, and connect the ventilator's port E to the disinfection machine's port E 30.

[0037] Anesthesia machine disinfection process: The air pump 15 outputs the atomized gas generated in the nebulizer 8 through the mist outlet 14, and supplies it to the inhalation port of the anesthesia machine through the air supply port 25. After passing through the internal pipeline of the anesthesia machine, it is discharged from the exhalation port of the anesthesia machine to the recovery port 26 and enters the filter analyzer 3. The filter analyzer 3 performs multiple filtrations and decompositions on the recovered exhaust gas until it fully meets the national emission standards and is discharged into the environment, thus completing the disinfection of the anesthesia machine circuit.

[0038] Ventilator disinfection process: High-pressure oxygen enters the evaporation chamber 18 through the input end 27 and the open oxygen valve 22. The gas carrying the evaporated disinfectant enters the ventilator inlet through the output end 28, is exhaled through the ventilator I port, and enters the simulated ventilator device 5 through the disinfection machine I port 29. As the ventilator works, the disinfectant gas is output from the disinfection machine E port 30, enters the ventilator E port, enters the recovery port 26 through the ventilator exhaust port, and enters the filter analyzer 3. The filter analyzer 3 performs multiple filtrations and decompositions on the recovered exhaust gas until it fully meets the national emission standards and is discharged into the environment, completing the disinfection of the ventilator circuit.

[0039] The above methods are used to disinfect the internal circuits of dual-circuit anesthesia machines and ventilators.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double circuit system anesthesia machine, breathing machine internal circuit sterilizer, comprising a machine box (1), characterized in that: The chassis (1) is equipped with a control unit, atomizing unit (2), filter analyzer (3), evaporation unit (4) and simulated ventilator device (5). The atomizing unit (2) includes a water bottle (6), a medicine bottle (7), and an atomizing generator (8). The water bottle (6) is provided with a water outlet (9), the medicine bottle (7) is provided with a medicine outlet (10), and the atomizing generator (8) is provided with a water inlet (11), a medicine inlet (12), an air inlet (13), and a mist outlet (14). The housing (1) is also provided with an air pump (15), a water pump (16), and a liquid pump (17). The air pump (15) is connected to the atomizing unit (8). The air inlet (13) is connected to the pipeline, the air pump (15) supplies air to the atomizer (8), the water outlet (9) is connected to the water inlet (11) through the pipeline, the water pump (16) is used to drive the extraction of water from the water bottle (6) to add water to the atomizer (8), the medicine outlet (10) is connected to the medicine inlet (12) through the pipeline, and the liquid pump (17) is used to drive the extraction of disinfectant from the medicine bottle (7) to provide disinfectant to the atomizer (8); The evaporation unit (4) includes an evaporation chamber (18), a heater (19) is provided at the bottom of the evaporation chamber (18), a temperature sensor (20) and a pressure sensor (21) are provided on the evaporation chamber (18), the temperature sensor (20) is used to detect the temperature in the evaporation chamber (18), the pressure sensor (21) is used to detect the pressure in the evaporation chamber (18), an oxygen valve (22) is connected to the evaporation chamber (18) by a pipeline, the oxygen valve (22) is used to control the access of high-pressure oxygen, the evaporation chamber (18) is also provided with an evaporation chamber liquid inlet (23) and an evaporation chamber gas outlet (24), the liquid pump (17) is used to drive the extraction of disinfectant from the medicine bottle (7) through the evaporation chamber liquid inlet (23) to provide disinfectant to the evaporation chamber (18); The filter analyzer (3) is used to decompose and recover the exhaust gas; The simulated ventilator device (5) is used to provide a simulated virtual artificial lung to ensure that the ventilator is disinfected under normal and stable conditions.

2. The dual-circuit system anesthesia machine and ventilator internal circuit disinfection machine according to claim 1, characterized in that: The surface of the chassis (1) is provided with an air supply port (25), a recovery port (26), an input end (27), an output end (28), a sterilizer I port (29), and a sterilizer E port (30). The air supply port (25) is connected to the mist outlet (14) pipeline to provide disinfectant for the anesthesia machine. The recovery port (26) is connected to one end of the filter analyzer (3). The input end (27) is connected to the oxygen valve (22) to provide high-pressure oxygen to the evaporation chamber (18). The output end (28) is connected to the evaporation chamber outlet (24) to provide disinfectant for the ventilator. The sterilizer I port (29) is connected to the air extraction port of the simulated ventilator device (5). The sterilizer E port (30) is connected to the air supply port of the simulated ventilator device (5).

3. The dual circuit system anesthesia, ventilator internal circuit sterilizer according to claim 1, characterized in that: The chassis (1) is also equipped with a reversing valve (31). The reversing valve (31) is provided with a reversing valve inlet (32), a reversing valve outlet one (33), and a reversing valve outlet two (34). The reversing valve inlet (32) is connected to the drug outlet (10) pipeline, and the reversing valve outlet one (33) is connected to the drug injection port (12) pipeline, forming a disinfection passage for the anesthesia machine; the liquid pump (17) has a liquid pump take-up port (35) and a liquid pump injection port (36). The evaporation chamber (18) is also equipped with an evaporation chamber inlet (37), a liquid extraction valve (38), and an injection valve (39). The reversing valve outlet (34) is connected to the evaporation chamber inlet (37) via pipeline. The liquid extraction valve (38) is connected to the liquid pump extraction port (35) via pipeline. The liquid pump injection port (36) is connected to the evaporation chamber injection port (23) via pipeline. The injection valve (39) is used to control the opening and closing of the evaporation chamber injection port (23) to form a ventilator disinfection pathway.

4. The dual circuit system anesthesia, ventilator internal circuit sterilizer according to claim 1, characterized in that: The chassis (1) includes an upper chassis and a lower chassis. The control unit is located in the upper chassis. The atomizing unit (2), the filter analyzer (3), the evaporation unit (4) and the simulated ventilator device (5) are all located in the lower chassis (1). The control unit includes an MCU control board (40) located in the upper chassis and a touch display (41) located on the surface of the upper chassis.

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