Anaesthesia machine

Abstract

The invention discloses an anaesthesia machine, which belongs to the technical field of medical equipment, and comprises a machine body and a mask, the outer side of the mask is sleeved with an annular pipe, the annular pipe is symmetrically provided with a plurality of meshes, the inner side of the mask is provided with an annular suction port, the suction port is communicated with a suction pipe, and the suction port is provided with an electronic valve. A plurality of flow dividing pipes communicating with the suction pipe are arranged on the outer wall of the annular pipe, a conveying pipe penetrating through the treatment box is arranged at the output end of the second pump shell, and activated carbon is arranged in the treatment box. The anesthetic mask further comprises a conveying assembly used for conveying anesthetic gas into the mask body. The filtering assembly is used for filtering the waste gas; according to the invention, overflowing gas can be recovered and filtered.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical equipment, and particularly relates to an anesthesia machine. Background Art

[0002] An anesthesia machine is a medical device used to safely and accurately deliver anesthetic gases such as isoflurane and sevoflurane and oxygen to a patient during a surgical procedure, while assisting or controlling the patient's breathing and real-time monitoring of vital sign parameters such as heart rate, blood oxygen, and respiration. It is the core device in a modern operating room to maintain a patient's painlessness, muscle relaxation, and physiological stability. Since the mask worn by the anesthesia machine does not perfectly fit the patient's face, some anesthetic gases still leak slightly, which has a potential impact on the health of medical staff in the long term. Now, a device for recovering the overflowing gas is proposed. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides an anesthesia machine to solve the above problems.

[0004] To achieve the above object, the present invention is realized through the following technical solutions: An anesthesia machine includes a body and a mask. A ring tube is sleeved outside the mask, and a plurality of mesh holes are symmetrically arranged on the ring tube. An annular suction port is arranged inside the mask, and the suction port is communicated with a suction pipe. An electronic valve is arranged on the suction port. A plurality of shunt pipes communicated with the suction pipe are arranged on the outer wall of the ring tube. The output end of the pump housing two is provided with a delivery pipe penetrating through the treatment box, and activated carbon is arranged inside the treatment box. It further includes a delivery component for delivering anesthetic gas to the mask, and a filtering component for filtering waste gas.

[0005] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0006] Further technical solution: An air outlet is opened on one side of the upper end of the treatment box. One end of the treatment box is open, and a closing cover is arranged at one end of the treatment box. The closing cover is detachably and fixedly connected to the opening of the treatment box through bolts. A plurality of support mesh frames are arranged inside the treatment box, and the activated carbon is located inside the support mesh frames. A diversion channel distributed in a serpentine shape is arranged between the support mesh frames. A plurality of groups of diversion plates are arranged above the support mesh frames inside the treatment box. And a transmission component for circulating the waste gas.

[0007] Further technical solution: A support ring is fixedly arranged on the outer wall of the mask, and a plurality of groups of spring pieces are arranged between the support ring and the ring tube.

[0008] Further technical solution: The transmission assembly includes a second impeller. Symmetrically distributed bearing brackets are provided at the upper end of the base. A driven shaft that is rotatably installed inside the bearing brackets and penetrates the second impeller is rotatably installed inside the second pump housing. Synchronous pulleys are sleeved on the outer walls of the rotating shaft and the driven shaft, and a belt is sleeved on the outer wall of the synchronous pulley; It also includes a premixing assembly for mixing anesthetic gas and oxygen.

[0009] Further technical solution: The conveying assembly includes gas cylinders. The multiple gas cylinders are arranged at the upper end of the base. An evaporation tank is provided on one side of the gas cylinders. A first pump housing and a second pump housing are provided on one side of the evaporation tank. A motor is provided on one side of the first pump housing. The output end of the motor is provided with a rotating shaft that is rotatably installed inside the first pump housing. An impeller is sleeved on the outer wall of the rotating shaft and is rotatably installed inside the first pump housing. A mask is provided on the front side of the body. The suction end of the second pump housing is provided with a suction pipe that penetrates the mask.

[0010] Further technical solution: The premixing assembly includes a rotating shaft. One end of the rotating shaft is rotatably installed inside the evaporation tank. Stirring rods that are arranged in a circular array and rotatably installed inside the evaporation tank are provided on the outer wall of the rotating shaft.

[0011] Further technical solution: A connecting pipe is provided at the lower end of the mask. The output end of the first pump housing is provided with an air supply pipe that communicates with the connecting pipe. A one-way valve is provided inside the air supply pipe. The suction end of the first pump housing is provided with a suction pipe that penetrates the evaporation tank. The suction pipe is communicated with the mask and penetrates the connecting pipe at one end.

[0012] Further technical solution: A display panel is provided at the upper end of the base. Pulleys are provided at the four corners of the lower end of the base. A placement rack is provided at the upper end of the base. Multiple groups of storage cabinets stacked longitudinally are provided at the upper end of the base. The suction end of the first pump housing penetrates the evaporation tank. The gas cylinder and the evaporation tank are communicated through a pipeline.

[0013] Beneficial effects

[0014] The present invention provides an anesthetic machine, which has the following beneficial effects compared with the prior art:

[0015] 1. Check whether the pressure inside the gas source cylinder is normal. Put the mask on the patient's face. It should be noted that the mask needs to fit closely with the cheeks of the person. The cylinder outputs pressurized gas, including anesthetic gases such as isoflurane and sevoflurane, and oxygen. After the pressurized gas enters the evaporation chamber, it is buffered and depressurized. Then, when Motor 1 operates, it drives the rotating shaft to rotate, driving Impeller 1 to rotate inside Pump Housing 1, creating a suction force inside Pump Housing 1. The suction force acts on the evaporation chamber through the suction pipe, and the depressurized gas is sucked. When the rotating shaft rotates, it drives the stirring rod to rotate inside the evaporation chamber, and the gas inside the evaporation chamber is mixed under the agitation of the stirring rod. The suction force inside Pump Housing 1 enters Pump Housing 1 through the suction pipe and enters the mask through the delivery pipe, providing anesthetic gas for the patient;

[0016] 2. The waste gas escaping from the edge of the mask enters the suction pipe through the mesh holes on the annular pipe and converges into the treatment box. The waste gas stays in the serpentine diversion channel for an extended period. The activated carbon adsorbs the anesthetic gas, and the purified gas is discharged from the air outlet. The closing cover replaces the saturated activated carbon regularly. The annular negative pressure suction combined with physical adsorption purification directly captures the escaping gas, improving the medical environment and addressing the common problem that the mask cannot fit effectively with the patient's cheeks, avoiding adverse effects on medical staff caused by escaping anesthetic gas. At the same time, when the carbon dioxide concentration in the mask exceeds the standard, the user can open the electronic valve set on the suction port to start sucking the gas inside the mask, reducing the carbon dioxide content to a reasonable level;

[0017] 3. When the rotating shaft rotates, through the linkage of the synchronous pulley and the belt, the rotational force of the rotating shaft acts on the driven shaft through the belt, driving the driven shaft to rotate. When the driven shaft rotates, it drives Impeller 2 to rotate. At this time, a suction force is generated inside Pump Housing 2. The suction force acts on the inside of the mask through the suction pipe and, through the connection between the connecting pipe and the annular pipe, acts on the edge of the mask, avoiding the use of additional electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front perspective structural schematic diagram of the present invention;

[0019] Figure 2 is the rear perspective structural schematic diagram of the present invention;

[0020] Figure 3 is the top perspective structural schematic diagram of the present invention;

[0021] Figure 4 is the side perspective structural schematic diagram of the present invention;

[0022] Figure 5 is the top perspective structural schematic diagram of the base of the present invention;

[0023] Figure 6 is the top perspective structural schematic diagram of Pump Housing 1 and Pump Housing 2 of the present invention;

[0024] Figure 7 Schematic diagram of the rear internal perspective structure of the first pump housing and the second pump housing of the present invention;

[0025] Figure 8 Schematic diagram of the top internal perspective structure of the evaporator box of the present invention;

[0026] Figure 9 Schematic diagram of the rear perspective structure of the processing box of the present invention;

[0027] Figure 10 Schematic diagram of the side sectional perspective structure of the processing box of the present invention;

[0028] Figure 11 Schematic diagram of the front perspective structure of the first angle of the mask of the present invention;

[0029] Figure 12 Schematic diagram of the front perspective structure of the second angle of the mask of the present invention;

[0030] Figure 13 Schematic diagram of the side perspective structure of the first strap and the second strap of the present invention.

[0031] Reference numerals: 1, storage cabinet; 2, display panel; 3, body; 4, base; 5, pulley; 6, gas cylinder; 7, placement rack; 8, evaporator box; 9, motor; 10, processing box; 11, first pump housing; 12, second pump housing; 13, air supply pipe; 14, suction pipe; 15, exhaust pipe; 16, first impeller; 17, second impeller; 18, bearing bracket; 19, driven shaft; 20, synchronous pulley; 21, conveying pipe; 22, belt; 23, rotating shaft; 24, stirring rod; 25, air outlet; 26, closing cover; 27, support mesh frame; 28, guide plate; 29, guide channel; 30, annular pipe; 31, spring piece; 32, connecting pipe; 33, support ring; 34, shunt pipe; 35, suction port; 36, mask. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0034] Please refer to Figures 1 to 13, provided by an embodiment of the present invention, an anesthesia machine includes a body 3, a base 4, a motor 9, a first pump housing 11, a second pump housing 12, a processing box 10 and a face mask 36. The upper end of the base 4 is provided with the body 3. The upper end of the base 4 is provided with a plurality of gas cylinders 6. One side of the gas cylinder 6 is provided with an evaporation box 8. One side of the evaporation box 8 is provided with the first pump housing 11 and the second pump housing 12. One side of the first pump housing 11 is provided with the motor 9. The output end of the motor 9 is provided with a rotating shaft 23 rotatably installed inside the first pump housing 11. The outer wall of the rotating shaft 23 is sleeved with an impeller 16 rotatably installed inside the first pump housing 11. The front side of the body 3 is provided with the face mask 36. The suction end of the second pump housing 12 is provided with a suction pipe 14 penetrating through the face mask 36;

[0035] One end of the rotating shaft 23 is rotatably installed inside the evaporation box 8. The outer wall of the rotating shaft 23 is provided with stirring rods 24 distributed in an annular array and rotatably installed inside the evaporation box 8;

[0036] The lower end of the face mask 36 is provided with a connecting pipe 32. The output end of the first pump housing 11 is provided with an air supply pipe 13 communicating with the connecting pipe 32. A one-way valve is arranged inside the air supply pipe 13. The suction end of the first pump housing 11 is provided with a suction pipe 15 penetrating through the evaporation box 8. The end of the suction pipe 14 communicating with the face mask 36 penetrates through the connecting pipe 32;

[0037] The upper end of the base 4 is provided with a display panel 2. The four corners of the lower end of the base 4 are respectively provided with pulleys 5. The upper end of the base 4 is provided with a placement rack 7. The upper end of the base 4 is provided with multiple groups of storage cabinets 1 stacked longitudinally;

[0038] The suction end of the first pump housing 11 penetrates through the evaporation box 8. The gas cylinder 6 is communicated with the evaporation box 8 through a pipeline;

[0039] Move the base 4 to a designated position through the pulleys 5. The gas cylinder 6 is connected to the evaporation box 8 through a pipeline. The suction end of the first pump housing 11 penetrates through the evaporation box 8. The motor 9 drives the rotating shaft 23 to drive the impeller 16 to rotate. The rotating shaft 23 extends into the evaporation box 8 to install the stirring rods 24. The first pump housing 11 is connected to the face mask 36 through the air supply pipe 13. The air supply pipe 13 contains a one-way valve to prevent gas backflow. The high-pressure gas cylinder 6 outputs anesthetic gases such as isoflurane and oxygen to the evaporation box 8. The gas pressure is initially released. The stirring rods 24 rotate with the rotating shaft 23 to forcibly mix the gases, ensuring the uniform distribution of the anesthetic gas and oxygen. The motor 9 drives the impeller 16 to rotate inside the first pump housing 11 to generate a negative pressure to suck the mixed gas in the evaporation box 8. The gas enters the first pump housing 11 through the suction pipe 15 and is conveyed to the face mask 36 through the air supply pipe 13 for the patient to inhale. The display panel 2 monitors the gas flow and pressure parameters in real time. The patient inhales the anesthetic gas by wearing the face mask 36.

[0040] Embodiment Two:

[0041] On one side of the second pump housing 12, a treatment box 10 is provided. Inside the second pump housing 12, an impeller two 17 is rotatably installed. Outside the mask 36, a ring pipe 30 is sleeved, and a plurality of mesh holes are symmetrically arranged on the ring pipe 30. Inside the mask 36, an annular suction port 35 is provided, and the suction port 35 is communicated with the suction pipe 14. An electronic valve is provided on the suction port 35. On the outer wall of the ring pipe 30, a plurality of shunt pipes 34 communicated with the suction pipe 14 are provided. The output end of the second pump housing 12 is provided with a delivery pipe 21 passing through the treatment box 10, and activated carbon is provided inside the treatment box 10;

[0042] On the upper end of the base 4, symmetrically distributed bearing brackets 18 are provided. Inside the bearing brackets 18, a driven shaft 19 is rotatably installed, which is rotatably installed inside the second pump housing 12 and penetrates through the impeller two 17;

[0043] On one side of the upper end of the treatment box 10, an air outlet 25 is opened. One end of the treatment box 10 is open, and a closing cover 26 is provided at one end of the treatment box 10. The closing cover 26 is detachably and fixedly connected to the opening of the treatment box 10 through bolts;

[0044] Inside the treatment box 10, a plurality of support mesh frames 27 are provided. The activated carbon is located inside the support mesh frames 27. Between the support mesh frames 27, a serpentine distribution diversion channel 29 is provided. Inside the treatment box 10, a plurality of groups of diversion plates 28 located above the support mesh frames 27 are provided;

[0045] On the outer wall of the mask 36, a support ring 33 is fixed. Between the support ring 33 and the ring pipe 30, a plurality of groups of spring pieces 31 are provided;

[0046] Synchronous wheels 20 are sleeved on the outer walls of the rotating shaft 23 and the driven shaft 19, and a belt 22 is sleeved on the outer walls of the synchronous wheels 20;

[0047] The suction end of the second pump housing 12 is connected to the mask 36 through the suction pipe 14, and the output end is connected to the treatment box 10 through the delivery pipe 21. The ring pipe 30 is sleeved outside the mask 36 and is communicated with the suction pipe 14 through the shunt pipe 34. Inside the treatment box 10, a serpentine diversion channel 29 and an activated carbon layer are provided. The closing cover 26 facilitates the replacement of the adsorption material. When the impeller two 17 of the second pump housing 12 rotates, negative pressure is generated. The waste gas escapes from the edge of the mask 36, enters the suction pipe 14 through the mesh holes on the ring pipe 30, and converges into the treatment box 10. The waste gas stays along the serpentine diversion channel 29 for an extended residence time. The activated carbon adsorbs the anesthetic gas, and the purified gas is discharged from the air outlet 25. The closing cover 26 regularly replaces the saturated activated carbon. The annular negative pressure suction is combined with physical adsorption purification to directly capture the escaping gas, improve the medical environment, and improve the common problem that the mask 36 cannot be effectively attached to the patient's cheek when worn, avoiding the adverse impact of the escaping anesthetic gas on medical staff; at the same time, when the carbon dioxide concentration in the mask 36 exceeds the standard, the user can open the electronic valve provided on the suction port 35, thereby starting to suck the gas in the mask 36 to reduce the carbon dioxide content to a reasonable level.

[0048] Embodiment III:

[0049] On the outer wall of the face mask 36, there are a first strap 38 and a second strap 39. One end of the first strap 38 is provided with a clamping frame 40. Inside the inner wall of the clamping frame 40, there are symmetrically distributed connecting rods 41. Between the clamping frame 40 and the connecting rods 41, there are a plurality of assembly grooves 42. Inside the inner wall of the opening of the face mask 36, there is a latex pad 37. At the opening of the face mask 36, there is a nose bridge groove 43;

[0050] When the face mask 36 is worn, the face near the mouth is attached through the latex pad 37, improving the comfort during wearing. At the same time, the face mask 36 is attached to the nose of the wearer through the nose bridge groove 43 and sleeved outside the nose, avoiding excessive squeezing of the wearer's nose by the face mask 36. After the face mask 36 and the nose bridge groove 43 are attached to the skin, the first strap 38 and the second strap 39 are sleeved behind the wearer's head. One corner of the first strap 38 is inserted into the inside of the assembly groove 42 and snakes along the outer wall of the connecting rod 41 in the assembly groove 42. Through the cooperation of the connecting rod 41 and the assembly groove 42, the frictional force of the first strap 38 acts on the outer wall of the connecting rod 41 and the inner wall of the assembly groove 42, realizing the binding of the face mask 36. The face mask 36 is effectively attached to the face near the mouth of the wearer, avoiding the detachment of the face mask 36 during use and improving the use stability.

[0051] The method steps of the anesthetic machine are as follows:

[0052] S1: Check whether the pressure inside the gas source cylinder 6 is normal, and wear the face mask 36 on the patient's face. It should be noted that the face mask 36 needs to be attached to the cheeks of the person. The cylinder 6 outputs pressurized gas, including anesthetic gases such as isoflurane and sevoflurane and oxygen. The pressurized gas enters the evaporation box 8 and is buffered and depressurized. Subsequently, when the motor 9 operates, the motor 9 drives the rotating shaft 23 to rotate, driving the impeller 16 to rotate inside the pump housing 11, causing a suction force to be generated inside the pump housing 11. The suction force acts on the inside of the evaporation box 8 through the suction pipe 15, and the depressurized gas is sucked. When the rotating shaft 23 rotates, it drives the stirring rod 24 to rotate inside the evaporation box 8, and the gas inside the evaporation box 8 is mixed by the stirring of the stirring rod 24. The suction force inside the pump housing 11 enters the pump housing 11 through the suction pipe 15 and enters the face mask 36 through the delivery pipe 21 to provide anesthetic gas for the patient;

[0053] S2: The waste gas escaping from the edge of the face mask 36 enters the suction pipe 14 through the mesh holes on the annular pipe 30 and converges into the treatment box 10. The waste gas stays for an extended period along the serpentine diversion channel 29. The activated carbon adsorbs the anesthetic gas, and the purified gas is discharged from the air outlet 25. The closing cover 26 replaces the saturated activated carbon regularly. The annular negative pressure suction combined with physical adsorption purification directly captures the escaping gas, improves the medical environment, and improves the common problem that the face mask 36 cannot fit effectively with the patient's cheek when worn, avoiding the adverse impact of the escaping anesthetic gas on medical staff. At the same time, when the carbon dioxide concentration in the face mask 36 exceeds the standard, the user can open the electronic valve set on the suction port 35, thereby starting to suck the gas in the face mask 36 to reduce the carbon dioxide content to a reasonable level;

[0054] S3: When the rotating shaft 23 rotates, through the linkage of the synchronous pulley 20 and the belt 22, the rotational force of the rotating shaft 23 acts on the driven shaft 19 through the belt 22, thereby driving the driven shaft 19 to rotate. When the driven shaft 19 rotates, it drives the impeller two 17 to rotate. At this time, a suction force is generated inside the pump housing two 12. The suction force acts on the inside of the face mask 36 through the suction pipe 14 and, through the connection between the connecting pipe 32 and the annular pipe 30, acts on the edge of the face mask 36, avoiding the use of additional electrical equipment;

[0055] The motor 9 drives the rotating shaft 23, links the driven shaft 19 through the belt 22, and the driven shaft 19 drives the impeller two 17 of the pump housing two 12 to achieve synchronous operation of the two pumps. The pump housing one 11 conveys the anesthetic gas, and the pump housing two 12 sucks the waste gas. It shares the power of a single motor 9, eliminates the need for additional electrical equipment, reduces energy consumption, and realizes synchronous drive of the two pumps through mechanical linkage. A single motor 9 drives the two pumps, reducing power consumption and the maintenance cost of electrical equipment during subsequent use.

[0056] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] The so-called fixed connection in this application means that after the parts or components are fixed, there is no relative movement connection. It is divided into two types: detachable connection and non-detachable connection.

[0058] (1) Detachable connection: Use screws, splines, wedge pins, etc. to fix components together. This connection method can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, wedge pins), and they must be tightened properly.

[0059] (2) Non-detachable connection: mainly refers to welding, riveting, and mortise fitting, etc. Since forging, sawing, or oxy-fuel cutting is required to disassemble during maintenance or replacement, spare parts generally cannot be used a second time. At the same time, during connection, attention should be paid to process quality, technical inspection, and remedial measures (such as correction, polishing, etc.).

[0060] The sliding connection referred to in this application means that a component can slide along a linear trajectory, and the hinge connection referred to in this application means that a component can rotate along an axial constraint.

[0061] In some cases, the sliding connection and hinge connection referred to in this application can also be damped, so that the component has the ability to maintain at the desired position.

[0062] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anesthetic machine, comprising a machine body (3), a base (4) and a face mask (36). A ring pipe (30) is sleeved outside the face mask (36), and a plurality of mesh holes are symmetrically arranged on the ring pipe (30). An annular suction port (35) is arranged inside the face mask (36), and the suction port (35) is communicated with a suction pipe (14). An electronic valve is arranged on the suction port (35). A plurality of shunt pipes (34) communicated with the suction pipe (14) are arranged on the outer wall of the ring pipe (30). The output end of the pump housing two (12) is provided with a delivery pipe (21) penetrating through a treatment box (10), and activated carbon is arranged inside the treatment box (10). It further includes a delivery assembly for delivering anesthetic gas into the face mask (36). And a filtering assembly for filtering waste gas.

2. The anesthesia machine according to claim 1, wherein, One side of the upper end of the treatment box (10) is provided with an air outlet (25). One end of the treatment box (10) is open, and a closing cover (26) is arranged at one end of the treatment box (10). The closing cover (26) is detachably and fixedly connected to the opening of the treatment box (10) through bolts. A plurality of support mesh frames (27) are arranged inside the treatment box (10), and the activated carbon is located inside the support mesh frames (27). A diversion channel (29) distributed in a snake shape is arranged between the support mesh frames (27). A plurality of groups of diversion plates (28) are arranged above the support mesh frames (27) inside the treatment box (10). And a transmission assembly for circulating waste gas.

3. The anesthesia machine according to claim 1, characterized in that, A support ring (33) is fixedly arranged on the outer wall of the face mask (36), and a plurality of groups of spring pieces (31) are arranged between the support ring (33) and the ring pipe (30).

4. The anesthesia machine according to claim 2, wherein, The transmission assembly includes an impeller two (17). Symmetrically distributed bearing brackets (18) are arranged at the upper end of the base (4). A driven shaft (19) which is rotatably installed inside the bearing brackets (18) and penetrates through the impeller two (17) and is rotatably installed inside the pump housing two (12) is arranged. Synchronous wheels (20) are sleeved on the outer walls of the rotating shaft (23) and the driven shaft (19), and a belt (22) is sleeved on the outer wall of the synchronous wheel (20). It further includes a premixing assembly for mixing anesthetic gas and oxygen.

5. The anesthesia machine according to claim 1, characterized in that, The delivery assembly includes gas cylinders (6). The plurality of gas cylinders (6) are arranged at the upper end of the base (4). An evaporation box (8) is arranged on one side of the gas cylinders (6). A pump housing one (11) and a pump housing two (12) are arranged on one side of the evaporation box (8). A motor (9) is arranged on one side of the pump housing one (11). The output end of the motor (9) is provided with a rotating shaft (23) rotatably installed inside the pump housing one (11). An impeller one (16) rotatably installed inside the pump housing one (11) is sleeved on the outer wall of the rotating shaft (23). A face mask (36) is arranged on the front side of the machine body (3). The suction end of the pump housing two (12) is provided with a suction pipe (14) penetrating through the face mask (36).

6. The anesthesia machine according to claim 4, characterized in that, The premixing component includes a rotating shaft (23), one end of the rotating shaft (23) is rotatably installed inside the evaporation tank (8), and stirring rods (24) which are arranged in an annular array and rotatably installed inside the evaporation tank (8) are provided on the outer wall of the rotating shaft (23).

7. The anesthesia machine according to claim 1, characterized in that, A connecting pipe (32) is provided at the lower end of the face mask (36), an air delivery pipe (13) communicating with the connecting pipe (32) is provided at the output end of the first pump housing (11), a check valve is provided inside the air delivery pipe (13), an air suction pipe (15) penetrating through the evaporation tank (8) is provided at the suction end of the first pump housing (11), the suction pipe (14) communicates with the face mask (36) and penetrates through the connecting pipe (32) at one end.

8. The anesthesia machine according to claim 1, wherein, A display panel (2) is provided at the upper end of the base (4), pulleys (5) are provided at the four corners of the lower end of the base (4), a placement rack (7) is provided at the upper end of the base (4), multiple sets of storage cabinets (1) stacked longitudinally are provided at the upper end of the base (4), the suction end of the first pump housing (11) penetrates through the evaporation tank (8), and the gas cylinder (6) is communicated with the evaporation tank (8) through a pipeline.

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