Artificial airway heating and humidifying device in off-line state

Abstract

The utility model discloses an artificial airway heating and humidifying device in an off-line state. The artificial airway heating and humidifying device comprises a humidifier, a locking piece, an oxygen supply unit, a liquid storage unit and a constant temperature unit. A containing space is formed in the humidifier and used for containing sterile liquid, and a connector is arranged at the upper end of the humidifier and used for being connected with an artificial airway. The locking piece is arranged at the upper end of the humidifier, located on the periphery of the connector and used for locking the connector on the artificial airway. The oxygen supply unit is communicated with the humidifier and used for inputting oxygen into the containing space so that the oxygen can be humidified through the sterile liquid in the containing space, and the oxygen enters the artificial airway through the connector. The constant temperature unit is detachably connected to the lower end of the humidifier and used for heating the sterile liquid in the humidifier. The air humidification device has the remarkable advantages of improving the humidification effect, maintaining airway health, being easy and convenient to operate, being portable and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, and more particularly to an artificial airway warming and humidifying device in offline state. BACKGROUND

[0002] In the field of medical care, the establishment of artificial airway is crucial for patients with respiratory insufficiency or respiratory failure. However, the management and care of artificial airway face a series of challenges, especially in terms of humidification and warming.

[0003] Traditional artificial airway management often only focuses on humidification and ignores warming. When the human body breathes, the nasal cavity, pharynx and respiratory tract will naturally warm and humidify the inhaled gas, but the establishment of artificial airway destroys this normal physiological function. At present, without the use of breathing machine, artificial airway basically has only humidification without warming, resulting in a large amount of water loss in the respiratory tract, weakening or disappearance of respiratory tract cilia activity, causing increased secretion, and thick sputum difficult to discharge.

[0004] The poor humidification effect directly affects the patency of artificial airway. Patients who are offline for a long time have an increased risk of lung infection due to dry respiratory mucosa. The increase in sputum viscosity not only increases airway resistance, but also easily forms sputum embolism, further blocking the airway, and even threatening the life of the patient in severe cases.

[0005] Therefore, it is necessary to make further improvements in the prior art. SUMMARY

[0006] The utility model aims at least in a certain extent solves one of the technical problems in the prior art. To this end, the purpose of the utility model is to propose an artificial airway warming and humidifying device in offline state.

[0007] To achieve the above-mentioned purpose, according to the artificial airway warming and humidifying device in offline state of the utility model embodiment, it includes humidifier, locking piece, oxygen supply unit, liquid storage unit and constant temperature unit.

[0008] The humidifier is internally provided with a containing space for containing sterile liquid, and the upper end of the humidifier is provided with a connecting head for connecting the artificial airway.

[0009] The locking piece is arranged on the upper end of the humidifier and located at the periphery of the connecting head, so as to lock the connecting head on the artificial airway.

[0010] The oxygen supply unit is communicated with the humidifier, which is used for inputting oxygen into the containing space, so as to humidify the oxygen by the sterile liquid in the containing space, and the oxygen enters the artificial airway through the connecting head.

[0011] The liquid storage unit is used for storing sterile liquid and is communicated with the humidifier to input the sterile liquid into the accommodation space.

[0012] The constant temperature unit is detachably connected to the lower end of the humidifier to warm the sterile liquid in the humidifier.

[0013] In addition, the artificial airway warming and humidifying device in the offline state according to the above-mentioned embodiments of the utility model can further have the following additional technical features:

[0014] According to an embodiment of the utility model, the locking member comprises a plurality of pressing pieces and a locking ring.

[0015] The plurality of pressing pieces are arranged on the upper end of the humidifier and are distributed in a circumferential direction at intervals.

[0016] The locking ring is simultaneously arranged outside the plurality of pressing pieces and can adjust the length of the plurality of pressing pieces to gather the plurality of pressing pieces towards the connecting head.

[0017] According to an embodiment of the utility model, the thickness of each pressing piece gradually increases from one end connected to the humidifier to the other end away from the humidifier.

[0018] According to an embodiment of the utility model, the oxygen supply unit comprises an oxygen supply device and an oxygen delivery pipe.

[0019] The oxygen supply device is used to provide oxygen.

[0020] One end of the oxygen delivery pipe is connected to the oxygen supply device, the other end is connected to the humidifier, and the oxygen delivery pipe extends into the sterile liquid inside the humidifier to deliver the oxygen provided by the oxygen supply device into the humidifier.

[0021] According to an embodiment of the utility model, the side of one end of the oxygen delivery pipe located in the humidifier is provided with a plurality of air outlets, and the plurality of air outlets are distributed in a circumferential direction at intervals.

[0022] According to an embodiment of the utility model, one end of the oxygen delivery pipe located in the humidifier is provided with a counterweight part to increase the weight so that the end of the oxygen delivery pipe is stably located in the sterile liquid.

[0023] According to an embodiment of the utility model, the liquid storage unit comprises a liquid storage bag, a liquid delivery pipe and a speed regulator.

[0024] The liquid storage bag is used to store sterile liquid.

[0025] One end of the liquid delivery pipe is connected to the liquid storage bag, the other end is communicated with the humidifier, and the liquid delivery pipe is used to deliver sterile liquid to the humidifier.

[0026] The speed governor is arranged on the liquid delivery pipe to adjust the liquid flow rate.

[0027] According to an embodiment of the present application, the constant temperature unit comprises a heating layer and a heat preservation layer.

[0028] The heating layer is wrapped around the lower part of the humidifier to heat the sterile liquid in the humidifier.

[0029] The heat preservation layer is wrapped around the outer surface of the heating layer to preserve heat.

[0030] According to an embodiment of the present application, the heating layer comprises a heat conducting layer and a heating wire.

[0031] The heat conducting layer is used to conduct heat.

[0032] The heating wire is evenly arranged in the heat conducting layer to generate heat.

[0033] According to an embodiment of the present application, the inner wall of the heat preservation layer is provided with an elastic sheet at the upper end, which abuts against the outer surface of the humidifier to fix the heat preservation layer on the humidifier.

[0034] According to an embodiment of the present application, the offline artificial airway heating and humidifying device is provided with a containing space in the humidifier of the device, which is used to contain sterile liquid, and oxygen is input into the space through the oxygen supply unit to make the oxygen fully humidified by the sterile liquid. This design ensures that the oxygen entering the artificial airway has appropriate humidity, effectively avoiding the problems of respiratory tract mucosa dryness and sputum viscosity caused by insufficient humidity. The constant temperature unit is detachably connected to the lower end of the humidifier to warm the sterile liquid in the humidifier. This function not only improves the humidification effect, but also simulates the natural respiratory tract warming function of the human body, which helps to maintain the normal temperature and physiological function of the respiratory tract mucosa, further reducing the risk of lung infection. The locking piece is designed ingeniously, which can easily lock the connecting head on the artificial airway, ensuring the stability and safety of the device. At the same time, the detachable design of the constant temperature unit also facilitates cleaning and maintenance, prolonging the service life of the device.

[0035] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0037] Figure 1 It is the overall structure schematic diagram of the embodiment of the present application;

[0038] Figure 2 It is the overall structure schematic diagram of the humidifier of the embodiment of the present application;

[0039] Figure 3 It is the exploded view of the overall structure of the embodiment of the present application;

[0040] Figure 4 It is the overall structure schematic diagram of the embodiment of the present application in use state;

[0041] Figure 5 It is the heating layer sectional view of the embodiment of the present application;

[0042] Figure 6 It is the sectional view of the humidifier of the embodiment of the present application.

[0043] Drawing reference number:

[0044] Humidifier 10;

[0045] Accommodation space 101;

[0046] Connecting head 102;

[0047] Locking part 20;

[0048] Pressing piece 201;

[0049] Locking ring 202;

[0050] Oxygen supply unit 30;

[0051] Oxygen supply device 301;

[0052] Oxygen delivery pipe 302;

[0053] Air outlet hole 303;

[0054] Counterweight part 304;

[0055] Liquid storage unit 40;

[0056] Liquid storage bag 401;

[0057] Liquid delivery pipe 402;

[0058] Speed governor 403

[0059] Thermostatic unit 50

[0060] Heating layer 501

[0061] Thermal conductive layer 5011

[0062] Heating wire 5012

[0063] Heat preservation layer 502

[0064] Elastic sheet 503

[0065] The purposes, functional features and advantages of the utility model will be further explained in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0066] The embodiments of the utility model will be described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative labor belong to the protection scope of the utility model.

[0067] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0068] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0069] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication, for ordinary skilled in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0070] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication, for ordinary skilled in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0071] The artificial airway warming and humidifying device in offline state is described in detail below with reference to the drawings.

[0072] Referring to Figures 1 to 6 As shown in the figure, according to the artificial airway warming and humidifying device in offline state provided by the utility model embodiment, it comprises a humidifier 10, a locking part 20, an oxygen supply unit 30, a liquid storage unit 40 and a constant temperature unit 50.

[0073] The humidifier 10 is internally provided with a containing space 101 for containing sterile liquid, and the upper end of the humidifier 10 is provided with a connecting head 102 for connecting an artificial airway.

[0074] The locking part 20 is arranged at the upper end of the humidifier 10 and located at the periphery of the connecting head 102, so as to lock the connecting head 102 on the artificial airway.

[0075] The oxygen supply unit 30 is communicated with the humidifier 10, for inputting oxygen into the containing space 101, so as to humidify the oxygen by the sterile liquid in the containing space 101 and enter the artificial airway through the connecting head 102.

[0076] The liquid storage unit 40 is used for storing sterile liquid and is communicated with the humidifier 10, so as to input sterile liquid into the containing space 101.

[0077] The constant temperature unit 50 is detachably connected to the lower end of the humidifier 10, so as to warm the sterile liquid in the humidifier 10.

[0078] Based on the above, by providing a containing space 101 inside the humidifier 10 in the device for containing sterile liquid, and by inputting oxygen into the space through the oxygen supply unit 30, the oxygen is fully humidified by the sterile liquid. This design ensures that the oxygen entering the artificial airway has appropriate humidity, effectively avoiding the problem of respiratory tract mucosa dryness and thick sputum caused by insufficient humidity. The constant temperature unit 50 is detachably connected to the lower end of the humidifier 10, and the sterile liquid in the humidifier 10 is heated. This function not only improves the humidification effect, but also simulates the natural respiratory tract warming function of the human body, which helps to maintain the normal temperature and physiological function of the respiratory tract mucosa, further reducing the risk of lung infection. The locking piece 20 is designed cleverly, which can easily lock the connecting head 102 on the artificial airway, ensuring the stability and safety of the device. At the same time, the detachable design of the constant temperature unit 50 also facilitates cleaning and maintenance, prolonging the service life of the device.

[0079] Preferably, in an embodiment of the present application, the locking piece 20 comprises a plurality of pressing pieces 201 and a locking ring 202.

[0080] A plurality of the pressing pieces 201 are arranged on the upper end of the humidifier 10 and are distributed circumferentially and spaced apart along the connecting head 102.

[0081] The locking ring 202 is simultaneously sleeved outside a plurality of the pressing pieces 201 and can adjust the length of a plurality of the pressing pieces 201 to gather a plurality of the pressing pieces 201 towards the connecting head 102.

[0082] In this way, a plurality of pressing pieces 201 are distributed circumferentially and spaced apart along the connecting head 102, and are simultaneously sleeved and adjusted by the locking ring 202, which can uniformly and effectively tightly lock the connecting head 102 on the artificial airway. This design not only enhances the stability of the device, but also ensures good sealing between the humidifier 10 and the artificial airway, preventing gas leakage during humidification, thereby improving the humidification efficiency. The design of the locking ring 202 allows medical personnel to easily adjust its position as needed, thereby adjusting the pressing degree of the pressing pieces 201 on the connecting head 102. This adjustability not only facilitates installation and removal, but also provides personalized locking force for different patients or different use scenarios, ensuring optimal connection effect.

[0083] It should be noted that the connecting head 102 is of a conical structure, which facilitates insertion into artificial airways of different specifications to achieve communication, and the locking ring 202 and a plurality of the pressing pieces 201 are screw connected.

[0084] Preferably, in an embodiment of the utility model, the thickness of each compression sheet 201 gradually increases from the end connected to the humidifier 10 to the end away from the humidifier 10.

[0085] In this way, due to the gradual change in the thickness of the compression sheet 201, the device can more flexibly adapt to artificial airways of different shapes and sizes. The thinner part can more easily fit smaller airways, while the thicker part can provide additional support and locking force when needed, ensuring the stability and safety of the device.

[0086] Preferably, in an embodiment of the utility model, the oxygen supply unit 30 includes an oxygen supplier 301 and an oxygen delivery tube 302.

[0087] The oxygen supplier 301 is used to provide oxygen.

[0088] The oxygen delivery tube 302 is connected to the oxygen supplier 301 at one end and to the humidifier 10 at the other end, and extends into the sterile liquid inside the humidifier 10, to deliver the oxygen provided by the oxygen supplier 301 into the humidifier 10.

[0089] In this way, the oxygen supplier 301, as the source of oxygen, can stably and continuously provide the required amount of oxygen. The oxygen delivery tube 302 is responsible for efficiently delivering these oxygen to the inside of the humidifier 10, ensuring sufficient supply of oxygen during the humidification process. This design not only improves the humidification efficiency, but also ensures the continuity and stability of the treatment process. The oxygen delivery tube 302 extends into the sterile liquid inside the humidifier 10, allowing the oxygen to directly contact the sterile liquid for sufficient humidification. This design not only improves the humidification effect, but also makes the humidification process more uniform and controllable, helping to maintain the normal humidity and physiological function of the respiratory mucosa.

[0090] Preferably, in an embodiment of the utility model, the oxygen delivery tube 302 is provided with a plurality of air outlets 303 on the side inside the humidifier 10, and the plurality of air outlets 303 are distributed along the circumference of the oxygen delivery tube 302.

[0091] In this way, the design of multiple air outlets 303 allows oxygen to be more evenly distributed into the sterile liquid inside the humidifier 10, thereby improving the humidification efficiency. This dispersed oxygen supply method helps to speed up the absorption of oxygen by the sterile liquid and the humidification process, making the output humidified oxygen more in line with the treatment requirements. The air outlets 303 are distributed along the circumference of the oxygen delivery tube 302, ensuring that the oxygen distribution in each area inside the humidifier 10 is more uniform. This helps to avoid situations where the oxygen concentration is too high or too low in certain areas, thereby improving the quality of humidified oxygen and the treatment effect.

[0092] Preferably, in an embodiment of the present application, one end of the oxygen delivery tube 302 located in the humidifier 10 is provided with a counterweight part 304 to increase the weight so that the end of the oxygen delivery tube 302 is stably immersed in the sterile liquid.

[0093] It can be understood that when the humidifier 10 is connected to the artificial airway, the angle of the humidifier 10 may change due to the change of the patient's position, and thus the presence of the counterweight part 304 increases the weight of the oxygen delivery tube 302 in the humidifier 10, so that the end thereof can be stably immersed in the sterile liquid. This ensures that the oxygen can continuously and stably contact the sterile liquid during delivery, thereby achieving sufficient humidification and improving the treatment effect. Due to the effect of the counterweight part 304, the end of the oxygen delivery tube 302 will not easily leave the sterile liquid due to the influence of buoyancy or airflow. This avoids the problems of reduced humidification efficiency and poor treatment effect caused by gas leakage, and ensures the continuity and stability of the treatment.

[0094] Preferably, in an embodiment of the present application, the liquid storage unit 40 comprises a liquid storage bag 401, a liquid delivery tube 402 and a speed regulator 403.

[0095] The liquid storage bag 401 is used to store the sterile liquid.

[0096] The liquid delivery tube 402 is connected to the liquid storage bag 401 at one end and communicates with the humidifier 10 at the other end, to deliver the sterile liquid to the humidifier 10.

[0097] The speed regulator 403 is arranged on the liquid delivery tube 402 to adjust the flow rate of the liquid.

[0098] In this way, the liquid storage bag 401 serves as a storage container for the sterile liquid, and has the characteristics of being light, portable and easy to replace. The liquid delivery tube 402 is responsible for delivering the sterile liquid from the liquid storage bag 401 to the humidifier 10, ensuring that the sterile liquid can quickly and accurately reach the inside of the humidifier 10 when needed. This design not only improves the convenience of using the sterile liquid, but also ensures the continuity and stability of the treatment process. The setting of the speed regulator 403 enables medical staff to adjust the flow rate of the liquid delivery tube 402 as needed, thereby accurately controlling the amount of sterile liquid entering the humidifier 10. This precise control helps to maintain a stable level of sterile liquid inside the humidifier 10, ensuring the continuity and effectiveness of the humidification process.

[0099] Preferably, in an embodiment of the present application, the constant temperature unit 50 comprises a heating layer 501 and a heat preservation layer 502.

[0100] The heating layer 501 is wrapped around the lower part of the humidifier 10 to heat the sterile liquid inside the humidifier 10. Advantageously, the heater is equipped with a temperature controller to control the temperature and avoid excessive or insufficient temperature.

[0101] The heat preservation layer 502 is wrapped around the outer surface of the heating layer 501 to preserve heat.

[0102] In this way, the heating layer 501 wrapped around the lower part of the humidifier 10 can heat the sterile liquid inside the humidifier 10, thereby accurately controlling the humidification temperature. This design ensures that the sterile liquid maintains a constant and appropriate temperature during the humidification process, which helps to improve the efficiency and effectiveness of the treatment. The heat preservation layer 502 wrapped around the outer surface of the heating layer 501 effectively reduces heat loss and maintains the stability of the internal temperature of the humidifier 10. This design avoids fluctuations in the humidification temperature caused by changes in the ambient temperature, ensuring the continuity and stability of the treatment process.

[0103] Preferably, in one embodiment of the present application, the heating layer 501 comprises a heat-conducting layer 5011 and a heating wire 5012.

[0104] The heat-conducting layer 5011 is used to conduct heat.

[0105] The heating wire 5012 is evenly arranged in the heat-conducting layer 5011 to generate heat.

[0106] In this way, the heat-conducting layer 5011 serves as a heat-conducting medium with excellent heat-conducting properties. It can quickly and evenly transfer the heat generated by the heating wire 5012 to the sterile liquid inside the humidifier 10, ensuring the efficiency and uniformity of the heating process. The heating wire 5012 is evenly arranged in the heat-conducting layer 5011, making the heat distribution more uniform and avoiding local overheating or temperature unevenness. This design helps to accurately control the temperature inside the humidifier 10, ensuring that the sterile liquid is humidified within an appropriate temperature range, thereby improving the treatment effectiveness. Due to the uniform distribution of the heating wire 5012 and the good heat-conducting properties of the heat-conducting layer 5011, the heating layer 501 can more efficiently convert electrical energy into heat energy, reducing energy waste. This design not only reduces energy consumption but also prolongs the service life of the equipment.

[0107] Preferably, in one embodiment of the present application, the heat preservation layer 502 has a spring 503 on the inner wall of the upper end, which abuts against the outer surface of the humidifier 10 to fix the heat preservation layer 502 on the humidifier 10.

[0108] In this way, the shell 503 as a fixing member makes the installation and dismounting process of the heat preservation layer 502 simple and fast. The medical staff can easily fix the heat preservation layer 502 on the humidifier 10 or dismount it for cleaning and maintenance without using additional tools or complicated steps. This design improves the ease of use and operability of the device.

[0109] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0110] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An artificial airway warming and humidification device for use in an offline state, characterized by, The utility model relates to an artificial airway humidifier, comprising: a humidifier, which is internally provided with a containing space for containing sterile liquid, and is provided with a connecting head at the upper end for connecting an artificial airway; a locking member, which is arranged at the upper end of the humidifier and located at the periphery of the connecting head for locking the connecting head on the artificial airway; an oxygen supply unit, which is communicated with the humidifier for inputting oxygen into the containing space to humidify the oxygen by the sterile liquid in the containing space and then into the artificial airway through the connecting head; a liquid storage unit, which is used for storing sterile liquid and communicated with the humidifier for inputting sterile liquid into the containing space; a constant temperature unit, which is detachably connected to the lower end of the humidifier for heating the sterile liquid in the humidifier.

2. An artificial airway warming and humidification device in an offline state according to claim 1, characterized in that, The locking member comprises: a plurality of pressing pieces, which are arranged at the upper end of the humidifier and distributed along the circumference of the connecting head at intervals; a locking ring, which is simultaneously arranged outside the plurality of pressing pieces and can adjust the length of the plurality of pressing pieces for gathering the plurality of pressing pieces to the connecting head.

3. An off-line artificial airway warming and humidifying device according to claim 2, characterized in that, The thickness of each pressing piece gradually increases from the end connected to the humidifier to the end away from the humidifier.

4. The artificial airway warming and humidification device in offline state according to claim 1, characterized in that, The oxygen supply unit comprises: an oxygen supply device for providing oxygen; an oxygen delivery tube, which is connected at one end to the oxygen supply device and at the other end to the humidifier and extends into the sterile liquid in the humidifier for delivering the oxygen provided by the oxygen supply device into the humidifier.

5. An artificial airway warming and humidification device in an offline state according to claim 4, characterized in that, The side of the end of the oxygen delivery tube located in the humidifier is provided with a plurality of gas outlets, which are distributed along the circumference of the oxygen delivery tube at intervals.

6. The artificial airway warming and humidification device in offline state according to claim 4, characterized in that, The end of the oxygen delivery tube located in the humidifier is provided with a counterweight part for increasing the weight so that the end of the oxygen delivery tube is stably located in the sterile liquid.

7. The off-line artificial airway warming and humidifying device according to claim 1, characterized in that, The liquid storage unit comprises: a liquid storage bag for storing sterile liquid; a liquid delivery tube, which is connected at one end to the liquid storage bag and at the other end to the humidifier for delivering sterile liquid to the humidifier; a speed regulator, which is arranged on the liquid delivery tube for adjusting the flow rate of liquid.

8. The artificial airway warming and humidifying device in offline state according to claim 1, characterized in that, The constant temperature unit comprises: a heating layer, which is wrapped around the lower part of the humidifier for heating the sterile liquid in the humidifier; a heat preservation layer, which is wrapped around the outer surface of the heating layer for heat preservation.

9. An off-line artificial airway warming and humidifying device according to claim 8, characterized in that, The heating layer comprises: a heat conduction layer for conducting heat; heating wires, which are uniformly arranged in the heat conduction layer for generating heat.

10. The artificial airway warming and humidification device in an offline state according to claim 8, characterized in that, The upper end of the inner wall of the heat preservation layer is provided with a spring piece, which abuts against the outer surface of the humidifier for fixing the heat preservation layer on the humidifier.

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