CN111317592A

CN111317592A - Portable inhalation type animal anesthesia device and method

Info

Publication number: CN111317592A
Application number: CN202010277910.XA
Authority: CN
Inventors: 陈敏; 陈凌
Original assignee: Beijing Kangyuan Jiacheng Biotechnology Co ltd
Current assignee: Beijing Kangyuan Jiacheng Biotechnology Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-06-23

Abstract

The invention relates to a portable suction type animal anesthesia device and a method, wherein the device comprises: a respirator, a volatilizer, an induction anesthesia box and an air duct; the method comprises the following steps: can be used alone or in combination with anesthetic machine. When the animal anesthetic is used independently, volatile anesthetic is added into the induction anesthetic box and the volatilizer, and the animal is placed into the induction anesthetic box to perform induction anesthesia; the respiratory mask is connected with the volatilizer through the air duct, an animal subjected to induced anesthesia is taken out of the induced anesthesia box, the respiratory mask is installed on the mouth and the nose of the animal, and the animal continuously inhales gas mixed with anesthetic under the action of the volatilizer to keep a continuous anesthesia state. When the anesthesia machine is used in combination with the anesthesia machine, the interface for outputting anesthesia gas of the anesthesia machine is connected with the respirator by the gas guide tube, the induction anesthesia box is connected with the anesthesia machine according to the same method, after the induction anesthesia of the animal in the induction anesthesia box is finished, the respirator is worn on the mouth and nose part of the animal, and the animal continuously inhales the anesthesia gas to keep a continuous anesthesia state.

Description

Portable inhalation type animal anesthesia device and method

Technical Field

The invention relates to the field of medical animal experiments and veterinary and pet medical treatment, in particular to a portable inhalation type animal anesthesia device and a method.

Background

In the medical animal experiment, veterinary medicine and pet medical industry, animals are often subjected to anesthesia treatment. The current methods of anesthesia for animals are mainly injection anesthesia and inhalation anesthesia. Injection of anaesthesia is the intravenous, intramuscular or intraperitoneal injection of an anaesthetic to bring the animal into anaesthesia. Injection type anesthesia is relatively strict in control of the dosage of anesthesia, operation difficulty is relatively high, the condition that animals die due to poor anesthesia effect or excessive anesthesia often occurs, the anesthesia medicine can be cleared in vivo after metabolism of the liver and the kidney, certain side effects are caused on the liver and the kidney, experimental results are influenced, and the awakening time of the anesthetized animals is relatively long. Inhalation anesthesia refers to that an anesthetic enters into alveolus through breathing and then enters into blood, the concentration of the anesthetic in the blood and the inhalation concentration are balanced to maintain an anesthesia state, after the inhalation of the anesthetic is stopped, the anesthetic in the blood is exhaled out of a body through the alveolus, metabolism in the body is basically not needed, the anesthetic is cleared quickly, damage to internal organs is small, the influence on an experimental result is small, the awakening time of the respiratory anesthesia is short, and an animal can awaken in a short period as long as the inhalation of anesthetic gas is stopped. The inhalation type anesthesia is safer from the practical application effect, but the anesthesia machine is required to provide continuous anesthesia gas, and the limitation of equipment conditions is obvious.

For example, in medical animal experiments, anesthesia is often performed on experimental animals, and particularly, in the case of performing image examination on animals, the animals must be performed in a completely anesthetized state, and due to limitations on equipment and equipment, particularly, equipment such as anesthesia machines is not provided in most medical imaging places, injection anesthesia is required, and the animals are often killed because of poor dose control due to differences among individual animals, and are not anesthetized or waken up, and ethical requirements also require that inhalation anesthesia be used in some animal experiments. However, at present, no portable animal anesthesia device which is suitable for being carried and can be suitable for CT and nuclear magnetic resonance conditions exists.

In order to overcome the defect that animals are anesthetized in places such as laboratories, fields, medical imaging rooms and the like, the invention provides a portable inhalation anesthesia device for anesthetizing animals, and particularly provides a portable inhalation type animal anesthesia device and a portable inhalation type animal anesthesia method.

Disclosure of Invention

To solve one or more technical problems of the prior art, the present invention provides a portable inhalation type animal anesthesia apparatus and method, the apparatus comprising: a respirator, a volatilizer, an induction anesthesia box and an air duct. The respirator covers the mouth and the nose of an animal, is connected with the volatilizer or the anesthesia machine through an air duct, and sends anesthetic gas output by the volatilizer or the anesthesia machine into a respiratory system of the animal. The volatilizer is connected with the respirator through the air duct, and volatile anesthetic drugs volatilize in the volatilizer and mix into anesthetic gas with the gas that passes through and export in the respirator. The induction anesthesia box is used for inducing anesthesia to the animals placed in the box. And connecting the respirator and the volatilizer, and connecting the respirator and a pipe of the anesthesia machine, and conveying the anesthetic gas of the volatilizer or the anesthesia machine into the respirator.

Furthermore, the respiratory mask comprises a mask body, an air inlet nozzle, a fixing device and a one-way air outlet valve. The cover body can completely cover the mouth and the nose of an animal and prevent external air from entering from the parts except the air inlet nozzle. The air inlet nozzle is arranged on the breathing mask, one end of the air inlet nozzle is used for installing the air guide pipe, and the air guide pipe is a channel for enabling anesthetic gas to enter the mask body. The fixing device fixes the breathing mask on the mouth and the nose of an animal. The one-way air outlet valve keeps the air in the respirator to flow outwards only from the valve. In a preferred scheme, the air inlet nozzle is arranged at a position on the respirator, and after the respirator is arranged at the mouth and the nose of an animal, the direction of anesthetic gas entering the respirator can be opposite to the mouth and the nose of the animal; the fixing device can fix the breathing mask on the mouth and the nose of the animal in a mode of elastic bands and laces, a mode of adhesion, and a mode of hooking the teeth, the skin, the hair and the ears of the animal.

Furthermore, the volatilizer comprises a shell, an air inlet hole, a volatilization chamber, an air outlet hole and a one-way air inlet valve; the air inlet hole and the air outlet hole are arranged on the shell, the volatilization chamber is arranged in the shell, and the one-way air valve is arranged on the air inlet hole; and volatile anesthetic is injected into the volatilization chamber, volatilizes and is mixed with the air passing through the volatilization chamber to form anesthetic gas, and the anesthetic gas is output from the air outlet.

Furthermore, the induction anesthesia box comprises a box body, a cover, an air inlet, an air outlet and a volatilization vessel; the air inlet and the air outlet are arranged on the box body, the volatilization vessel is arranged in the box body, and a sealed space is formed inside the box body after the cover is covered; injecting volatile anesthetic gas into the volatilization vessel, volatilizing the volatile anesthetic gas, mixing the volatile anesthetic gas with air in the induction anesthetic box to form anesthetic gas, placing the animal into the induction anesthetic box, and inhaling the anesthetic gas to be anesthetized; the gas inlet is used for being connected with an anesthetic gas outlet of the anesthetic machine when being matched with the anesthetic machine for use, and redundant gas can flow out of the gas outlet.

Furthermore, the air duct is a pipe for conveying anesthetic gas, and can connect the air inlet nozzle of the respirator with the air outlet hole of the volatilizer, also can connect the air inlet nozzle of the respirator with an output port of the anesthetic machine for outputting anesthetic gas, and also can connect the induction anesthetic box with an outlet of the anesthetic machine for outputting anesthetic gas.

Further, in a preferred embodiment, the material for manufacturing the device is selected to be a material that does not affect the result of the medical examination, such as plastic that does not affect the result of the medical nuclear magnetic resonance, CT, X-ray examination.

Further, the invention provides a portable inhalation type animal anaesthesia device and a method, wherein the method for anaesthetizing animals comprises the following steps: the induction anesthesia box induces an anesthesia animal, the induction anesthesia box is matched with an anesthesia machine to induce the anesthesia animal, the respirator is matched with the volatilizer to continuously anesthetize the animal, and the respirator is matched with the anesthesia machine to continuously anesthetize the animal.

Further, the induction anesthesia box induces an anesthesia animal, a volatile anesthetic is injected into a volatilization vessel in the induction anesthesia box, the volatile anesthetic is volatilized and mixed with air in the induction anesthesia box to form anesthetic gas, the animal is placed into the induction anesthesia box, a cover is covered, and the animal inhales the anesthetic gas, so that the induction anesthesia is completed.

Furthermore, the induction anesthesia box is matched with an anesthesia machine to induce an anesthesia animal, the air inlet hole of the induction anesthesia box is connected with an outlet of the anesthesia machine for outputting anesthesia gas, the anesthesia gas output by the anesthesia machine enters the induction anesthesia box along the air guide tube, and after the animal is placed in the induction anesthesia box, the animal breathes in the anesthesia gas output by the anesthesia machine, so that the induction anesthesia is completed.

Furthermore, the respirator and the volatilizer are matched to continuously anaesthetize animals, volatile anaesthetic is injected into a volatilization chamber of the volatilizer, the volatile anaesthetic volatilizes, an air inlet nozzle of the respirator is connected with an air outlet hole of the volatilizer through the air guide tube, the respirator is covered on the oral nose part of the animal induced to be anaesthetized through the fixing device, air enters the shell from an air inlet hole of the volatilizer under the action of animal inspiration, the volatile chamber and the volatile anaesthetic are mixed into anaesthetic gas, the anaesthetic gas enters the respirator along the air guide tube and is inhaled by the animal, and therefore continuous anaesthesia of the animal is kept.

Furthermore, the respirator and the anaesthesia machine are matched for continuously anaesthetizing animals, the air inlet nozzle of the respirator is connected with the outlet of the anaesthesia machine for outputting anaesthesia gas by the air duct, the respirator is covered on the mouth and nose parts of the animals induced to be anaesthetized by the fixing device, the anaesthesia gas output by the anaesthesia machine enters the respirator along the air duct and is inhaled by the animals, and therefore the animals are kept continuously anaesthetized.

The invention has the following advantages: the anesthesia induction box has the functions of anesthesia induction and continuous anesthesia, solves the problem that an animal struggles and resists in the operation process, and solves the problem that the animal is continuously anesthetized by the volatilizer and the breathing mask. The device can be used under the condition of being supported by an anesthesia machine, and can also be used in the environment without being supported by the anesthesia machine, such as the field and the like. The animal can be kept in an anesthesia state in the process of medical image examination on the animal, the posture of the animal is kept unchanged so as to be beneficial to the image examination, the respiratory mask and the volatilizer are matched with the method for continuously anesthetizing the animal, the anesthetized animal can be put into a medical examination instrument together with the respiratory mask and the volatilizer, and the respiratory mask and the volatilizer cannot influence the medical image examination result.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a diagram showing the relationship between the components of the present invention.

Fig. 2 is a schematic view of the respiratory mask of the present invention.

FIG. 3 is a schematic view of the fastening device for a respirator according to the present invention.

FIG. 4 is a schematic view of the method for fixing the teeth of the respiratory mask fixing device of the present invention.

Fig. 5 is a schematic view showing the flow direction of anesthetic gas of the respiratory mask of the present invention.

FIG. 6 is a schematic view of a volatilizer of the invention.

FIG. 7 is the schematic diagram of the air intake change of the volatilizer of the invention.

FIG. 8 is a schematic view of an anesthesia induction cassette of the present invention.

FIG. 9 is a schematic view of the present invention under continuous anesthesia alone.

FIG. 10 is a schematic view of the use of the present invention in conjunction with an anesthesia machine.

FIG. 11 is a connection diagram of the parts of the present invention.

In the figure: 00. the device comprises a respiratory mask, 01, an air guide tube, 02, a volatilizer, 03, an induction anesthesia box, 20, a mask body, 21, a one-way air outlet valve, 22, an air inlet nozzle, 30, a tooth hanging device, 31, a biting hole, 32, upper incisors, 33, lower incisors, 34, a pressure spring, 35, a clamping tenon, 36, a connecting elastic band, 37, a neck elastic band, 40, a mouth and a nose of a mouse, 41, an air inlet direction, 42, an air outlet direction, 50, a shell, 51, an air outlet hole, 52, a partition plate, 53, an

air inlet hole

1, 54, an air inlet hole 2, 55, an air flow inlet direction, 56, a regulating switch, 57, an anesthetic drug, 58, a one-way air inlet valve, 59, a volatilization chamber, 60, a box body, 61, a box cover, 62, a volatilization vessel, 63, an air inlet, 64, an air outlet, 65, anesthetic drug volatilization, 70, a respiratory mask, 71, an air guide tube, 72.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The composition relationship of the parts of the invention is shown in figure 1. The invention is divided into two parts when in use, the induction anesthesia box 03 is a part for carrying out induction anesthesia on animals, and the respirator 00 is connected with the volatilizer 02 through the air duct 01 to be a part for carrying out continuous anesthesia on the animals. The principle of inducing the anesthetic part is as follows: the induction anesthesia box 03 is internally provided with a volatilization vessel 62 for volatilizing volatile anesthetic, the volatilization vessel 62 for injecting the volatile anesthetic 57 into the induction anesthesia box 03 is covered with a cover 61, the volatile anesthetic volatilizes in the induction anesthesia box 03 and is mixed with air in the induction anesthesia box 03 to form gas with an anesthetic effect, and an animal is placed into the induction anesthesia box 03 and then inhales the gas mixed with the anesthetic to be anesthetized, so that induction anesthesia is completed. The working principle and the connection mode of the continuous anesthesia part are as follows: the respirator 00 is communicated with the volatilizer 02 through the air duct 01, and the respirator 00 covers the mouth and nose of an animal by using a fixing device, so that a closed space is formed in the respirator. Because the one-way air outlet valve is arranged on the respirator 00 and the one-way air inlet valve is arranged on the volatilizer 02, when an animal inhales air, negative pressure is formed among the respirator 00, the air duct 01 and the volatilizer 03, the one-way air outlet valve on the respirator 00 is closed by the negative pressure, meanwhile, the one-way air inlet valve of the volatilizer 02 is opened, and air passes through the air duct 01 from the volatilizer 02 and then enters the respirator. When the animal exhales, positive pressure is formed in the respirator 00, the air duct 01 and the volatilizer 02, the positive pressure closes the one-way air inlet valve on the volatilizer 02, the one-way air outlet valve on the respirator is opened, air is directly discharged from the one-way air outlet valve on the respirator 00, and air forms one-way air flow from the volatilizer 02 and the air duct 01 to the respirator 00. Along with the breathing of the animal, the air continuously passes through the volatilizer 02, is mixed with the volatile anesthetic in the volatilizer 02 to form gas with the anesthetic effect, is inhaled into the body by the animal through the air duct 01 and the respirator 00, and keeps the animal in a continuous anesthetic state. In the practical application of the invention, in order to eliminate the influence on the operation process caused by the biting and scratching of the animal when the animal is awake, firstly, induction anesthesia is carried out, a proper amount of volatile anesthetic is injected into the volatilization vessel of the induction anesthesia box 03, the animal to be anesthetized is placed in the volatilization vessel, the cover is covered, then the respirator 00, the air duct 01 and the volatilizer 02 are assembled, and the volatile anesthetic is injected into the volatilization chamber of the volatilizer. When the animal is in an anesthesia state, the induced anesthesia is completed, the animal is taken out of the induced anesthesia box 03, and the respirator 00 is covered on the mouth and nose of the animal by using the fixing device, so that the animal can be kept in a continuous anesthesia state.

The breathing mask of the present invention is schematically illustrated in fig. 2. Taking a respirator suitable for rats as an example, the structure and the principle of the respirator are described as follows: a mask body 20 for covering the mouth and nose of the animal, delivering anesthetic gases to the mouth and nose of the animal, and blocking outside air from entering the interior of the mask; a one-way vent valve 21 for controlling the flow of exhaled animal gases out of the valve to the exterior of the housing 20, from which external gases cannot enter the housing 20; the other end of the air inlet nozzle 22 arranged on the mask body 20 is connected with an outlet of the volatilizer or the anesthetic machine for outputting anesthetic gas through the air duct, and the anesthetic gas is sent into the respirator and is a channel for the anesthetic gas to enter the mask body.

The fixing mode of the breathing mask is shown in figures 3 to 4. The fixing device is arranged on the breathing mask 00 and is used for covering the breathing mask on the mouth and the nose of an animal. The breathing mask 00 can be placed on the mouth and nose of an animal in many ways, such as with an elastic band or a strap, and can be adhered or hooked on the teeth, skin, hair, or ears of the animal. The following description will be made by taking the case where the respiratory mask is placed on the nose and mouth of a rat by the elastic band fixing method and the hook tooth fixing method.

Elastic band fixing method: as shown in fig. 4, the elastic band is divided into two parts, one part is a neck elastic band 37 wound around the neck of the mouse, the other part is a connection elastic band 36 having one end mounted on the respiratory mask 00 and the other end connected to the neck elastic band 37, and the respiratory mask 00 is fixed to the mouth and nose of the mouse by using the neck elastic band 37 as a fixing point and using the elastic force, by connecting the plurality of connection elastic bands 36 to the neck elastic band 37.

The method for fixing the hooked teeth comprises the following steps: the rat is a rodent, and is characterized in that the upper jaw and the lower jaw respectively have two incisors which can continuously grow, and the two incisors are bent towards opposite directions in a sickle shape. By utilizing the characteristics of the front teeth of the rat, the respiratory mask can be fixed on the front teeth. As shown in fig. 4, a method for fixing a respirator by hooking incisors is provided, wherein an articulator 30 is arranged inside a hood body 20 and is connected with an air inlet nozzle 22 extending into the hood body 20 through a hole on the hood body 20 into a whole, the air inlet nozzle 22 is sleeved with a pressure spring 34 outside the hood body 20, the pressure spring 34 is clamped by a clamping tenon 35, the spring 34 enables the articulator to generate a pulling force to press the air inlet nozzle 22 towards the hood body 20, the articulator 30 extends out of the hood body, the upper incisors 32 of a mouse extend into a biting hole 31 of the articulator 30, the pressing force applied to the air inlet nozzle 22 is relieved, the spring 34 provides a pushing force to the hood body 20, and the pushing force tightly buckles the hood body 20 on the mouth and nose of the mouse, so that the hood body is fixed.

The direction of anesthetic gas flow in the respiratory mask of the present invention is shown in fig. 5. The flow direction of the anesthetic gas in the respiratory mask 00 is firstly from the air inlet nozzle to the interior of the respiratory mask 00 along the air inlet direction 41, and the exhaled gas is discharged from the respiratory mask 00 from the one-way air outlet valve along the air outlet direction 42. In a preferred embodiment, the air is directed against the mouse's mouth and nose 40 for direct inhalation of anesthetic gases entering through the intake nozzle 01.

The volatilizer of the invention is shown in figure 6. The volatilizer is used for volatilizing the anesthetic drugs and mixing the anesthetic drugs and the passing gas in proportion into effective and safe anesthetic gas. Fig. 6 shows the structure and working principle of a volatilizer, which consists of a shell 50, an air outlet 51, a partition plate 52, an air inlet 53 of an air chamber, an air inlet 54 of a volatilizing chamber, a volatilizing chamber 59, an air inlet proportion regulating valve 56 and a one-way air inlet valve 58. The partition 52 separates the housing 50 into an air chamber, which is free of anesthetic drugs and allows air to pass directly, and a volatilization chamber. Volatile anesthetic drugs are arranged in the volatilization chamber, when no air flows through the volatilization chamber, the volatile anesthetic drugs are volatilized continuously, the content of the volatile anesthetic drugs in the gas in the volatilization chamber is increased continuously and is close to saturation gradually, when an animal inhales, negative pressure is formed in the volatilization chamber, a part of gas containing the volatile anesthetic drugs is sucked away from the air outlet 51, a part of air is sucked away from the air inlet 54 of the volatilization chamber, the drug concentration of the gas in the volatilization chamber is reduced, and the volatile anesthetic drugs continue to volatilize. Meanwhile, when the animal inhales, negative pressure is formed in the air chamber, a part of air enters from the air inlet 53 of the air chamber, and the air is mixed with the volatilized anesthetic from the volatilization chamber at the air outlet 51 to form anesthetic gas with a certain proportion and is conveyed into the respirator. The concentration of the anesthetic gas delivered into the breathing mask is controlled by the air inlet proportion adjusting valve 56, the air inlet proportion controlling valve shown in fig. 6 is in a state that the air inlet 53 of the air chamber is the same as the air inlet amount of the air inlet 54 of the volatilization chamber, when the concentration of the volatile anesthetic needs to be reduced, the air inlet proportion controlling valve is adjusted to the angle shown in fig. 7, the air inlet of the air chamber is enlarged, the air inlet amount is increased, the air inlet of the volatilization chamber is reduced, the air inlet amount is reduced, the concentration of the anesthetic gas obtained at the air outlet is reduced, and therefore the effect of adjusting the concentration of the anesthetic gas is achieved. In a preferred embodiment, the intake ratio adjusting valve 56 and the housing 50 are marked with a scale to indicate the concentration of the anesthetic gas generated.

The schematic diagram of the induction anesthesia box of the present invention is shown in fig. 8. Before the animals are subjected to incoming continuous anesthesia, in order to eliminate the influence on the operation process caused by the bite and scratch when the animals are awake, induction anesthesia is generally carried out firstly, and after the animals enter an anesthesia state, a device to be subjected to anesthesia can be conveniently installed, so that other operations are not influenced by the resistance of the animals. The induction anesthesia box 03 consists of a box body 60, a box cover 61, a volatilization vessel 62, an air inlet 63 and an air outlet 64, and the use mode comprises a single use mode and a matched use mode with an anesthesia machine. Under the exclusive use mode, with absorbent cotton or toilet paper with air inlet 63 and gas outlet 64 closed, inject right amount of volatile anesthetic 57 into volatilizing ware 57, put into box body 60 with the animal, cover lid 61, the inside of induction anesthesia box 03 forms a confined space, along with volatile anesthetic 57 constantly volatilizees in volatilizing ware 62, the content of the anesthetic in the air of induction anesthesia box 03 constantly increases, the animal is anaesthetized after inhaling the gas that contains the anesthetic, thereby accomplish the process of induction anesthesia.

The schematic of the continuous anesthesia of the present invention is shown in fig. 9. When the continuous anesthesia is carried out independently, induction anesthesia is firstly carried out on the animal, volatile anesthetic drugs are added into the volatilization vessel 62 and the volatilization device 02, the breathing mask 00 is connected with the volatilization device 02 through the air duct 01, the breathing mask 00 is installed on the mouth and nose of the animal to be subjected to the induction anesthesia by a fixing device, and as shown in fig. 9, the animal continuously inhales gas mixed with the anesthetic under the action of the volatilization device 02 to keep the continuous anesthesia state.

A schematic of the invention in use with an anaesthetic machine is shown in figure 10. When the induction anesthesia box 03 is used in cooperation with the anesthesia machine 80, an anesthetic does not need to be added into a volatilization vessel of the anesthesia induction box 03, an anesthetic gas outlet 81 of the anesthesia machine 80 is connected with a gas inlet of the induction anesthesia box 03 through a gas guide tube 01, anesthetic gas output by the anesthesia machine 80 flows into the induction anesthesia box 03 along the gas guide tube 10, and an animal in the induction anesthesia box 03 inhales the anesthetic gas, so that induction anesthesia is completed.

As shown in figure 10, the respirator 00 and the anesthesia machine 80 are used in a matched manner, a volatilizer 02 is not used, an anesthetic gas output port 81 of the anesthesia machine 80 is connected with an air inlet nozzle of the respirator 00 through an air duct 01, and after the respirator 00 is covered on the mouth and nose of an animal, the animal keeps continuous anesthesia because the animal continuously inhales anesthetic gas output by the anesthesia machine.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A portable inhalation animal anesthesia apparatus, comprising:

the respirator is covered on the mouth and the nose of the animal, is connected with the volatilizer or the anesthesia machine through an air duct, and sends the anesthetic gas output by the volatilizer or the anesthesia machine into the respiratory system of the animal;

the volatilizer is connected with the respirator through an air duct, and volatile anesthetic drugs volatilize in the volatilizer and are mixed with passing gas to form anesthetic gas which is output into the respirator;

an induction anesthesia box for performing induction anesthesia on an animal placed in the box;

and the air duct is connected with the respirator and the volatilizer and the respirator and the pipe of the anesthesia machine and used for conveying the anesthetic gas of the volatilizer or the anesthesia machine into the respirator.

2. A portable inhalation animal anesthesia device of claim 1, wherein said respiratory mask comprises a mask body, an inlet nozzle, a securing means, a one-way outlet valve; the cover body can completely cover the mouth and the nose of an animal and prevent external air from entering from the part except the air inlet nozzle; the air inlet nozzle is arranged on the breathing mask, one end of the air inlet nozzle is used for installing the air guide pipe, and the air inlet nozzle is a channel for enabling anesthetic gas to enter the mask body; the fixing device is used for fixing the breathing mask on the mouth and the nose of an animal; the one-way air outlet valve keeps the air in the respirator to flow outwards only from the valve.

3. A portable inhalation animal anesthesia apparatus of claim 1, wherein said volatilizer comprises a housing, an air inlet hole, a volatilization chamber, an air outlet hole, a one-way air inlet valve; the air inlet hole and the air outlet hole are arranged on the shell, the volatilization chamber is arranged in the shell, and the one-way air valve is arranged on the air inlet hole; and volatile anesthetic is injected into the volatilization chamber, volatilizes and is mixed with the air passing through the volatilization chamber to form anesthetic gas, and the anesthetic gas is output from the air outlet.

4. The portable inhalation animal anesthesia apparatus of claim 1, wherein said induction anesthesia box comprises a box body, a cover, an air inlet, an air outlet, a volatilization vessel; the air inlet and the air outlet are arranged on the box body, the volatilization vessel is arranged in the box body, and a sealed space is formed inside the box body after the cover is covered; injecting volatile anesthetic gas into the volatilization vessel, volatilizing the volatile anesthetic gas, mixing the volatile anesthetic gas with air in the induction anesthetic box to form anesthetic gas, placing the animal into the induction anesthetic box, and inhaling the anesthetic gas to be anesthetized; the gas inlet is used for being connected with an anesthetic gas outlet of the anesthetic machine when being matched with the anesthetic machine for use, and redundant gas can flow out of the gas outlet.

5. A portable inhalation animal anesthesia apparatus according to claim 1, wherein said airway tube is a tube for delivering anesthesia gas, and is capable of connecting said inlet nozzle of said respirator to said outlet hole of said volatilizer, said inlet nozzle of said respirator to an output port for outputting anesthesia gas from an anesthesia machine, and said induction anesthesia box to an output port for outputting anesthesia gas from an anesthesia machine.

6. A method of anaesthetizing an animal using the apparatus of any of claims 1-5, wherein: the induction anesthesia box is used for inducing an anesthesia animal, the induction anesthesia box is matched with an anesthesia machine for inducing the anesthesia animal, the respirator is matched with the volatilizer for continuously anesthetizing the animal, and the respirator is matched with the anesthesia machine for continuously anesthetizing the animal.

7. The method of anesthetizing an animal according to claim 6, wherein: the induction anesthesia box is used for inducing an anesthesia animal, volatile anesthetic is injected into a volatilization vessel in the induction anesthesia box, the volatile anesthetic is volatilized and is mixed with air in the induction anesthesia box to form anesthetic gas, the animal is placed into the induction anesthesia box, a cover is covered, the animal inhales the anesthetic gas, and therefore induction anesthesia is completed.

8. The method of anesthetizing an animal according to claim 6, wherein: the induction anesthesia box is matched with the anesthesia machine to induce an anesthetized animal, the air inlet hole of the induction anesthesia box is connected with the outlet of the anesthesia machine for outputting the anesthetic gas by the air guide tube, the anesthetic gas output by the anesthesia machine enters the induction anesthesia box along the air guide tube, and after the animal is placed in the induction anesthesia box, the animal breathes in the anesthetic gas output by the anesthesia machine, so that the induction anesthesia is completed.

9. The method of anesthetizing an animal according to claim 6, wherein: the respirator and the volatilizer are matched to continuously anaesthetize animals, volatile anaesthetic is injected into a volatilization chamber of the volatilizer, the volatile anaesthetic volatilizes, an air inlet nozzle of the respirator is connected with an air outlet hole of the volatilizer through the air guide tube, the respirator is arranged at the mouth and nose parts of the animals induced to be anaesthetized through the fixing device, air enters the shell from an air inlet hole of the volatilizer under the action of animal inspiration, the volatile chamber and the volatile anaesthetic are mixed into anaesthetic gas, the anaesthetic gas enters the respirator along the air guide tube and is inhaled by the animals, and therefore continuous anaesthesia on the animals is kept.

10. The method of anesthetizing an animal according to claim 6, wherein: the respirator and the anaesthesia machine are matched for continuously anaesthetizing animals, the air inlet nozzle of the respirator is connected with the outlet of the anaesthesia machine for outputting anaesthesia gas by the air guide tube, the respirator is covered on the mouth and nose parts of the animals induced to be anaesthetized by the fixing device, the anaesthesia gas output by the anaesthesia machine enters the respirator along the air guide tube and is inhaled by the animals, and therefore the animals are kept continuously anaesthetized.