Airway humidification oxygen inhalation device

Abstract

The present invention discloses an airway humidification oxygen inhalation device, specifically relating to the technical field of airway humidification oxygen inhalation, comprising an oxygen inhalation mask, an air inlet of the oxygen inhalation mask being provided with an oxygen inlet tube group, and an air outlet of the oxygen inhalation mask being provided with an outlet tube; an active heating and humidification component being provided on the oxygen inlet tube group, the active heating and humidification component comprising an outer box, the outer box being provided with a water chamber and a heating chamber distributed up and down, a trachea for connecting the water chamber and the oxygen inlet tube group being fixed at the top of the outer box, facilitating the entry of water vapor in the water chamber into the oxygen inlet tube group for heating and humidifying the oxygen; a passive heating and humidification component being connected to the outlet tube, the passive heating and humidification component being provided on one side of the outer box and extending into the outer box, for recovering temperature and water in the patient's exhaled gas for heating and humidifying the oxygen. The present invention heats and humidifies oxygen by combining active and passive heating and humidification, effectively reducing energy consumption of electric heating, saving costs, and having high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of airway humidification oxygen inhalation, and in particular to an airway humidification oxygen inhalation device. Background Art

[0002] After an artificial airway is established in critical care patients undergoing tracheotomy, airway water loss increases and respiratory cilia movement weakens. Inadequate humidification can lead to sputum crusting, dyspnea, and increased lung infection. Airway humidification is crucial for ensuring artificial airway patency and is a core measure for maintaining respiratory function and preventing complications. By simulating the temperature and humidity of a physiological environment, it ensures airway patency, promotes secretion clearance, and ultimately reduces the risk of lung infection.

[0003] Currently, airway humidification methods include active heating and humidification methods and passive heating and humidification methods:

[0004] Active heated humidification uses an electric heater to heat the humidification fluid to a target temperature (usually set at 37°C) and delivers the gas through the respiratory tube to ensure that the temperature and humidity of the gas entering the airway meet physiological requirements. However, this method requires continuous electrical heating, which has the disadvantages of high energy consumption and high cost.

[0005] Passive heating and humidification utilizes the heat and moisture in the patient's exhaled air to passively heat and humidify the inhaled air. For example, artificial noses capture heat and moisture from the patient's exhaled air through special materials and release them into the inhaled air during the next inhalation, achieving recycling. However, the heating and humidification effect of artificial noses is highly dependent on the temperature and humidity of the patient's exhaled air and is not suitable for critically ill patients with weak breathing.

[0006] Another example is the prior art CN111658923A, which describes an intelligent respiratory rehabilitation device that assists with expectoration, pronunciation, and assessment. This device absorbs and stores moisture from exhaled air using a sponge or other material. During subsequent inhalation, the fresh air carries the moisture and heat from the absorbent material back into the lungs. However, this prior art method, in which the exhaled air is permanently stored in the sponge, can cause bacterial growth on the sponge due to residual moisture over long periods of use, potentially endangering the patient's health.

[0007] In view of the above problems, the present invention provides an airway humidification oxygen inhalation device that combines active and passive heating and humidification, has low energy consumption and high safety. Summary of the Invention

[0008] The purpose of the present invention is to provide an airway humidification oxygen inhalation device, which heats and humidifies oxygen by combining active and passive heating and humidification, effectively reducing electric heating energy consumption, saving costs, and having high safety.

[0009] In order to achieve the above-mentioned objectives, the present invention provides the following technical solution: an airway humidification oxygen inhalation device, comprising an oxygen inhalation mask, an air inlet of the oxygen inhalation mask being provided with an oxygen inlet tube group, and an air outlet of the oxygen inhalation mask being provided with an air outlet tube, oxygen enters the oxygen inhalation mask along the oxygen inlet tube group to supply oxygen to the patient, and the gas exhaled by the patient is discharged through the air outlet tube.

[0010] An active heating and humidification component is provided on the oxygen inlet pipe group, and the active heating and humidification component includes an outer box, and a water cavity and a heating cavity distributed up and down are provided in the outer box. An air pipe for connecting the water cavity and the oxygen inlet pipe group is fixed on the top of the outer box, so that the water vapor in the water cavity can enter the oxygen inlet pipe group to heat and humidify the oxygen.

[0011] The outlet pipe is connected to a passive heating and humidifying component, which is arranged on one side of the outer box and extends into the outer box, and is used to recover the temperature and water in the patient's exhaled gas to heat and humidify the oxygen.

[0012] Preferably, a water inlet pipe is fixed to the side of the outer box away from the passive heating and humidification component, and a drain pipe is provided at the rear end of the outer box. Both the water inlet pipe and the drain pipe are connected to the water cavity, which is convenient for adding water and draining water from the water cavity. A liquid level meter for monitoring the water level in the water cavity is fixed to the top of the outer box. The liquid level meter can be a radar level meter or an ultrasonic level meter, etc.; an electric heating tube for heating the water in the water cavity is fixed in the heating cavity, and a disinfection lamp for disinfecting and sterilizing the water cavity is fixed at the top of the water cavity. The disinfection lamp uses a Philips TUV4W G4T5 ultraviolet sterilization lamp. The ultraviolet radiation wavelength is between 200nm and 300nm, which has extremely strong lethality to microorganisms.

[0013] Preferably, the oxygen inlet pipe group includes an air inlet pipe, a delivery pipe, a connecting pipe, a spiral pipe and an oxygen connecting pipe which are connected in sequence; the air inlet pipe is connected to the air inlet of the oxygen mask at one end away from the delivery pipe, and a one-way valve is installed at the air inlet of the oxygen mask, which only allows oxygen in the air inlet pipe to enter the oxygen mask, and the air pipe is connected to the delivery pipe; the oxygen connecting pipe is connected to the oxygen pipe of the oxygen tank, and oxygen enters the delivery pipe along the spiral pipe and the connecting pipe, and then the oxygen carries water vapor and enters the oxygen mask to supply oxygen to the patient.

[0014] Preferably, the passive heating and humidifying component includes a shell fixed to one side of the outer box, and the spiral tube is arranged in the shell; one end of the outlet pipe is connected to the outlet of the oxygen mask, and the outlet of the oxygen mask is installed with a one-way valve that only allows the gas in the oxygen mask to enter the outlet pipe; an air treatment device is fixed to the bottom of the rear end of the shell, and the other end of the outlet pipe is connected to the shell through the air treatment device, and the patient's exhaled gas enters the outlet pipe, and then the gas enters the shell after being treated to exchange heat with the oxygen in the spiral tube;

[0015] The air treatment device is preferably a device that does not consume electricity, such as a HEPA filter, which can efficiently filter PM2.5, pollen, bacteria, and virus particles with a filtration efficiency of up to 99.97%, and is used to sterilize the gas exhaled by the patient.

[0016] Preferably, a plurality of partitions distributed vertically are fixed to the inner wall of the shell, and the partitions are fixed to the outer end of the spiral tube. The plurality of partitions divide the space inside the shell into a plurality of flow cavities distributed vertically, and the other end of the air outlet pipe is connected to the flow cavity of the bottom layer; the front end of the partitions of the odd-numbered layers is provided with an opening, and the rear end of the partitions of the even-numbered layers is provided with an opening, and the plurality of flow cavities are connected through the openings, so as to facilitate sufficient heat exchange between the exhaled gas and the oxygen in the spiral tube.

[0017] Preferably, the passive heating and humidifying component further comprises a water collecting component provided at the top of the water cavity, the water collecting component comprising a partition plate fixed to the top of the outer box, and a water collecting member is fixed in the partition plate.

[0018] Preferably, a through hole is provided on a side of the outer box close to the outer shell, the partition plate is connected to the flow cavity at the top of the outer shell through the through hole, an exhaust pipe connected to the partition plate is provided at the rear end of the outer box, a mounting tube is provided at the rear end of the exhaust pipe, a waterproof and breathable membrane for blocking moisture is fixed in the mounting tube; the gas after heat exchange in the outer shell enters the partition plate, the moisture in the gas is collected by the water collecting member, and then the gas is discharged through the exhaust pipe;

[0019] Waterproof breathable membrane is a new type of polymer waterproof material with breathable, waterproof and oil-proof functions. The principle is: there are many tiny holes on the waterproof breathable membrane, and the pore size is usually less than 10 microns. The diameter of gas molecules is small and they can diffuse smoothly through these micropores, thereby achieving the breathable function. The intermolecular distance of liquid water is small and the surface tension is large, so liquid water cannot pass through these tiny holes and is blocked on one side of the membrane to achieve a waterproof effect.

[0020] Preferably, a water outlet pipe is fixed at the bottom end of the partition plate, an electric valve is fixed on the water outlet pipe, and a float switch for controlling the opening and closing of the electric valve is fixed in the partition plate. The float switch is a liquid level control device based on buoyancy and magnetic coupling. When the liquid level in the partition plate rises, the float floats up, triggering the switch action, the electric valve opens, and the water collected in the partition plate enters the water cavity. When the liquid level in the partition plate drops, the float sinks, closing the electric valve.

[0021] Preferably, a temperature monitoring component is fixed to the top of the outer box on the side close to the outer shell, and the temperature monitoring component includes a hollow cylinder 1, which is located between the delivery pipe and the connecting pipe, and the delivery pipe, the hollow cylinder 1 and the connecting pipe are connected in sequence. A temperature sensor is fixed to the top of the hollow cylinder 1 for monitoring the temperature of oxygen after heat exchange with the exhaled gas. The temperature sensor is a sensor that can sense temperature and convert it into a usable output signal.

[0022] Preferably, a temperature and humidity monitoring mechanism is fixed on the side of the top of the outer box away from the outer shell, and the temperature and humidity monitoring mechanism includes a second hollow cylinder, which is located between the air inlet pipe and the delivery pipe, and the air inlet pipe, the second hollow cylinder and the delivery pipe are connected in sequence, and a temperature and humidity sensor is fixed on the top of the second hollow cylinder for monitoring the temperature and humidity of the oxygen delivered to the oxygen mask;

[0023] A temperature and humidity sensor is a sensor device equipped with humidity and heat sensitive elements that can be used to measure temperature and humidity. Some have on-site displays, while others do not. Temperature and humidity sensors are widely used in various fields of production and life due to their small size and stable performance.

[0024] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0025] 1. The sterile distilled water in the water chamber is heated by an electric heating tube to generate water vapor, which is carried into the patient's airway by oxygen, achieving active heating and humidification. The patient's exhaled gas exchanges heat with oxygen to heat the oxygen, and at the same time, the water in the gas is recycled into the water chamber. The water is then heated to generate water vapor which is carried into the patient's airway by oxygen, achieving passive heating and humidification. Compared with the existing technology, the present invention combines active and passive heating and humidification, effectively reducing the energy consumption of electric heating and saving costs.

[0026] At the same time, since the moisture in the gas can be recycled and reused, it can not only save water resources and further save costs, but also reduce the frequency of medical staff adding water to the water cavity and reduce their workload.

[0027] 2. Since the water is immediately reused after being recovered and will not be stored for a long time, combined with the sterilization effect of the air treatment device and the disinfection lamp, it can effectively prevent the growth of bacteria, thereby avoiding harm to the health of patients and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the overall front view of the present invention;

[0029] Figure 2 This is a back structural diagram of the active heating and humidifying component and the passive heating and humidifying component of the present invention;

[0030] Figure 3It is a front and cross-sectional view of the active heating and humidifying component and the passive heating and humidifying component of the present invention;

[0031] Figure 4 for Figure 3 The main view;

[0032] Figure 5 A side view of the housing of the present invention;

[0033] Figure 6 This is a diagram showing the internal structure of the outer box of the present invention;

[0034] Figure 7 It is a side sectional view of the active heating and humidifying assembly and the water collection assembly of the present invention;

[0035] Figure 8 Schematic diagram of the oxygen and water vapor flow paths during the active heating and humidification process of the present invention;

[0036] Figure 9 Schematic diagram of the exhaled gas and water vapor flow paths during the passive heating and humidification process of the present invention.

[0037] Description of reference numerals:

[0038] 1 oxygen mask, 2 air inlet pipe, 21 delivery pipe, 22 connecting pipe, 23 spiral pipe, 24 oxygen connecting pipe;

[0039] 3 active heating and humidifying assembly, 31 outer box, 32 water chamber, 33 heating chamber, 34 electric heating tube, 35 air pipe, 36 water inlet pipe, 37 drain pipe, 38 disinfection lamp, 39 through hole;

[0040] 4 passive heating and humidifying assembly, 41 housing, 42 partition, 43 flow cavity, 44 opening;

[0041] 5. Exhaust pipe;

[0042] 6 water collection assembly, 61 partition plate, 62 water collection member, 63 water outlet pipe, 64 exhaust pipe, 65 installation tube, 66 waterproof breathable membrane;

[0043] 7. Liquid level gauge;

[0044] 8 temperature monitoring component, 81 hollow cylinder 1, 82 temperature sensor;

[0045] 9. Temperature and humidity monitoring mechanism, 91. Hollow cylinder 2, 92. Temperature and humidity sensor. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] The present invention provides Figure 1-9An airway humidification oxygen inhalation device is shown, comprising an oxygen mask 1, the air inlet of the oxygen mask 1 being provided with an oxygen inlet pipe assembly, the oxygen inlet pipe assembly comprising an air inlet pipe 2, a delivery pipe 21, a connecting pipe 22, a spiral pipe 23, and an oxygen connecting pipe 24 connected in sequence. The end of the air inlet pipe 2 away from the delivery pipe 21 is connected to the air inlet of the oxygen mask 1, and a one-way valve is installed at the air inlet of the oxygen mask 1, which only allows oxygen in the air inlet pipe 2 to enter the oxygen mask 1. The oxygen connecting pipe 24 is connected to the oxygen pipe of the oxygen tank.

[0048] Moreover, the air outlet of the oxygen breathing mask 1 is provided with an air outlet pipe 5, one end of the air outlet pipe 5 is connected to the air outlet of the oxygen breathing mask 1, and a one-way valve is installed at the air outlet of the oxygen breathing mask 1 to only allow the gas in the oxygen breathing mask 1 to enter the air outlet pipe 5;

[0049] After the patient puts on the oxygen mask 1, the oxygen connecting pipe 24 is connected to the oxygen tube. Oxygen is transported into the oxygen mask 1 along the path of the spiral tube 23, the connecting tube 22, the delivery tube 21, and the air inlet pipe 2 to supply oxygen to the patient, and the gas exhaled by the patient enters the outlet pipe 5, which is connected to the passive heating and humidification component 4.

[0050] Next, an active heating and humidifying component 3 is provided on the oxygen inlet pipe group. Specifically, the active heating and humidifying component 3 includes an outer box 31, and a water cavity 32 and a heating cavity 33 distributed up and down are provided in the outer box 31. A water inlet pipe 36 is fixed on the side of the outer box 31 away from the passive heating and humidifying component 4, and a drain pipe 37 is provided at the rear end of the outer box 31. The water inlet pipe 36 and the drain pipe 37 are both connected to the water cavity 32, and a sealing cover needs to be installed on the end of the water inlet pipe 36. Sterile distilled water can be added to the outer box 31 through the water inlet pipe 36, and a liquid level gauge 7 for monitoring the water level in the water cavity 32 is fixed at the top of the outer box 31. A disinfection lamp 38 is also fixed at the top inside the water cavity 32 for disinfecting and sterilizing the water cavity 32. After use, the remaining water in the water inlet pipe 36 can be discharged through the water inlet pipe 36.

[0051] An electric heating tube 34 for heating the water in the water chamber 32 is fixed in the heating chamber 33, and an air pipe 35 is fixed at the top of the outer box 31, and the air pipe 35 is connected to the delivery pipe 21; the water in the water chamber 32 is heated by the electric heating tube 34, and the water vapor enters the delivery pipe 21 through the air pipe 35, and the oxygen in the delivery pipe 21 is transported to the oxygen inhalation mask 1 with the water vapor, thereby realizing active airway humidification and oxygen inhalation for the patient.

[0052] Then, if Figure 1-5 As shown, the passive heating and humidification component 4 is provided on one side of the outer box 3 and extends into the outer box 31, and is used to recover the temperature and water in the patient's exhaled gas to heat and humidify oxygen. Specifically, the passive heating and humidification component 4 includes a shell 41 fixed to one side of the outer box 31, and the spiral tube 23 is provided in the shell 41;

[0053] An air treatment device is fixed to the bottom of the rear end of the shell 41, and the other end of the exhaust pipe 5 is connected to the shell 41 through the air treatment device. The gas exhaled by the patient enters the exhaust pipe 5, and then enters the shell 41 after treatment to heat the oxygen in the spiral tube 23. The spiral tube 23 is made of materials with good thermal conductivity such as copper and aluminum.

[0054] Furthermore, a plurality of partitions 42 distributed vertically are fixed on the inner wall of the outer shell 41, and the partitions 42 are fixed to the outer ends of the spiral tube 23. The plurality of partitions 42 divide the space inside the outer shell 41 into a plurality of flow chambers 43 distributed vertically. The other end of the air outlet pipe 5 is connected with the flow chamber 43 of the bottom layer. An opening 44 is provided at the front end of the partitions 42 of the odd-numbered layers, and an opening 44 is provided at the rear end of the partitions 42 of the even-numbered layers. The plurality of flow chambers 43 are connected through the openings 44. After the patient's exhaled gas enters the outer shell 41, it is blocked by the partitions 42, which extends the flow path of the gas and increases the heat exchange time between the gas and the oxygen in the spiral tube 23, so as to facilitate sufficient heat exchange between the patient's exhaled gas and the oxygen in the spiral tube 23.

[0055] The patient's exhaled gas not only has temperature, but also contains water vapor. At body temperature (about 37°C), the absolute humidity of the exhaled gas is close to 44 mg / L (i.e., 44 mg of water per liter of gas). In order to recover the water in the exhaled gas and continue to recover the temperature in the gas, Figure 3 、 Figure 4 、 Figure 6 and Figure 7 As shown, the passive heating and humidifying component 4 also includes a water collecting component 6 arranged at the top of the water chamber 32, and the water collecting component 6 includes a partition plate 61 fixed to the top of the outer box 31 close to the side of the passive heating and humidifying component 4, and a water collecting part 62 is fixed in the partition plate 61. The water collecting part 62 can be made of bionic water collecting material. Bionic water collecting material is a special functional material inspired by natural organisms, which can efficiently collect water vapor, fog or dew in the air. Its core principle is to achieve rapid condensation, directional transportation and efficient collection of droplets by imitating the micro-nano structure and wettability regulation of the surface of the organism.

[0056] A through hole 39 is formed on one side of the outer box 31 near the outer shell 41. The partition plate 61 is connected to the flow chamber 43 at the top of the outer shell 41 through the through hole 39. An exhaust pipe 64 is provided at the rear end of the outer box 31 and is connected to the partition plate 61. A mounting tube 65 is provided at the rear end of the exhaust pipe 64. A waterproof and breathable membrane 66 that blocks moisture is fixed in the mounting tube 65. The mounting tube 65 and the exhaust pipe 64 are detachably connected by a thread or other structure, which facilitates the replacement of the mounting tube 65.

[0057] The gas after heat exchange in the shell 41 enters the partition plate 61, and the moisture in the gas is collected by the water collecting member 62, and then the gas is discharged through the exhaust pipe 64. At the same time, the partition plate 61 is made of a material with good thermal properties such as copper and aluminum, which facilitates the temperature of the gas in the partition plate 61 to be transferred into the water cavity 32, which is beneficial to reducing the energy consumption of the electric heating tube 34.

[0058] A water outlet pipe 63 is fixed to the bottom end of the partition plate 61 , an electric valve is fixed to the water outlet pipe 63 , and a float switch for controlling the opening and closing of the electric valve is fixed to the partition plate 61 .

[0059] In addition, if Figure 1-4 As shown, a temperature monitoring assembly 8 is fixed to the top of the outer box 31 near the side of the outer shell 41. The temperature monitoring assembly 8 includes a hollow cylinder 81. The hollow cylinder 81 is located between the delivery pipe 21 and the connecting pipe 22, and the delivery pipe 21, the hollow cylinder 81 and the connecting pipe 22 are connected in sequence. A temperature sensor 82 is fixed to the top of the hollow cylinder 81 for monitoring the temperature of oxygen after heat exchange with the exhaled gas.

[0060] A temperature and humidity monitoring mechanism 9 is fixed to the side of the top of the outer box 31 away from the outer shell 41. The temperature and humidity monitoring mechanism 9 includes a second hollow cylinder 91. The second hollow cylinder 91 is located between the air intake pipe 2 and the delivery pipe 21, and the air intake pipe 2, the second hollow cylinder 91 and the delivery pipe 21 are connected in sequence. A temperature and humidity sensor 92 is fixed to the top of the second hollow cylinder 91 for monitoring the temperature and humidity of the oxygen delivered to the oxygen mask 1.

[0061] The working principle of the present invention for humidifying and delivering oxygen to the patient's airway is as follows:

[0062] 1. Active oxygen heating and humidification: First, add sterilized distilled water into the water cavity 32 of the outer box 31 through the water inlet pipe 36, then connect the oxygen pipe 24 to the oxygen pipe of the oxygen tank, start the electric heating pipe 34 to heat the water in the water cavity 32, and the generated water vapor enters the delivery pipe 21 through the air pipe 35. At the same time, oxygen is transported to the delivery pipe 21 through the spiral pipe 23 and the connecting pipe 22. Then, the oxygen carrying water vapor is transported to the oxygen mask 1 through the air inlet pipe 2. Figure 8 As shown ( Figure 8 The white arrow in the middle indicates the direction of oxygen flow, and the black arrow indicates the direction of water vapor flow). When the patient inhales, humidified oxygen enters the patient's airway, humidifying the patient's airway, ensuring the patency of the patient's artificial airway, promoting the clearance of secretions, and reducing the risk of lung infection.

[0063] 2. Passive Oxygen Heating and Humidification: When the patient exhales, the exhaled gas enters the exhaust pipe 5. After being sterilized by the air handling device, the gas enters the passive heating and humidification component 4 to exchange heat with the oxygen in the spiral tube 23 (the temperature of the gas exhaled by the human body is usually slightly lower than body temperature, generally 34-36°C), achieving passive heating. Because the oxygen is pre-heated, the time and power consumption of the subsequent electric heating tube 34 to heat the water to the required temperature are shortened, which helps reduce the energy consumption of the electric heating tube 34 and save costs.

[0064] Then, the gas after heat exchange in the housing 41 enters the partition plate 61 through the through hole 39, and the water in the gas is collected by the water collecting member 62. The water flows into the partition plate 61 and is collected. The gas is discharged through the exhaust pipe 64. At the same time, the temperature of the gas in the partition plate 61 is transmitted to the water cavity 32. This reduces the time and power consumption required for the electric heating pipe 34 to heat the water to the required temperature, thereby further reducing the energy consumption of the electric heating pipe 34.

[0065] When the water level in the partition plate 61 rises to the level set by the float switch, the electric valve on the water outlet pipe 63 opens, and the water in the partition plate 61 falls into the water chamber 32. The temperature of the water is transmitted to the water chamber 32, so that the time and power consumption of the electric heating pipe 34 to heat the water to the required temperature are further reduced, further reducing the energy consumption of the electric heating pipe 34. At the same time, the recovered water can be heated to generate water vapor and then enter the delivery pipe 21. Then, oxygen carries the water vapor and is delivered to the oxygen mask 1 through the intake pipe 2 to achieve passive humidification. Figure 9 As shown ( Figure 9 The black arrows in the middle represent the flow direction of exhaled gas, and the white arrows represent the flow direction of recovered water and water vapor);

[0066] In addition, the frequency of medical staff adding water to the water chamber 32 can be reduced, thereby alleviating their workload. At the same time, since the water is immediately reused after being recovered and will not be stored for a long time, combined with the sterilization effect of the air treatment device and the disinfection lamp, it can effectively avoid bacterial growth, thereby avoiding harm to the health of patients.

[0067] Finally, it should be noted that the electrical equipment of the present invention is controlled by a control panel installed on the outer box 31. The control panel adopts the existing automatic control system and will not be further described here.

[0068] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An airway humidification oxygen inhalation device, comprising an oxygen inhalation mask (1), characterized in that: The air inlet of the oxygen inhalation mask (1) is provided with an oxygen inlet pipe group, the oxygen inlet pipe group includes a spiral tube (23), and the air outlet of the oxygen inhalation mask (1) is provided with an air outlet pipe (5); An active heating and humidifying assembly (3) is provided on the oxygen inlet pipe group, and the active heating and humidifying assembly (3) includes an outer box (31), wherein a water cavity (32) and a heating cavity (33) are provided in the outer box (31) and are distributed vertically. An air pipe (35) for connecting the water cavity (32) and the oxygen inlet pipe group is fixed at the top of the outer box (31), so that water vapor in the water cavity (32) can enter the oxygen inlet pipe group to heat and humidify the oxygen. The outlet pipe (5) is connected to a passive heating and humidifying component (4), which is arranged on one side of the outer box (31) and extends into the outer box (31) and is used to recover the temperature and water in the patient's exhaled gas to heat and humidify the oxygen; The passive heating and humidifying assembly (4) comprises a shell (41) fixed to one side of the outer box (31), and the spiral tube (23) is arranged in the shell (41); One end of the air outlet pipe (5) is connected to the air outlet of the oxygen inhalation mask (1), and a one-way valve is installed at the air outlet of the oxygen inhalation mask (1) to only allow the gas in the oxygen inhalation mask (1) to enter the air outlet pipe (5); An air treatment device is fixed to the bottom of the rear end of the housing (41), and the other end of the air outlet pipe (5) is connected to the housing (41) through the air treatment device. The patient's exhaled gas enters the air outlet pipe (5), and then the gas enters the housing (41) after being processed to exchange heat with the oxygen in the spiral tube (23); A plurality of partitions (42) distributed vertically are fixed to the inner wall of the shell (41), and the partitions (42) are fixed to the outer ends of the spiral tubes (23). The plurality of partitions (42) divide the space inside the shell (41) into a plurality of flow cavities (43) distributed vertically. The other end of the air outlet pipe (5) is connected to the flow cavity (43) at the bottom layer. The passive heating and humidifying assembly (4) further includes a water collecting assembly (6) disposed at the top of the water chamber (32), the water collecting assembly (6) including a partition plate (61) fixed to the top of the outer box (31), and a water collecting member (62) fixed in the partition plate (61); A through hole (39) is provided on a side of the outer box (31) close to the outer shell (41); the partition plate (61) is communicated with the flow cavity (43) at the top of the outer shell (41) via the through hole (39); an exhaust pipe (64) communicating with the partition plate (61) is provided at the rear end of the outer box (31); a mounting tube (65) is provided at the rear end of the exhaust pipe (64); a waterproof and breathable membrane (66) for blocking moisture is fixed in the mounting tube (65); The gas after heat exchange in the housing (41) enters the partition plate (61), and the water in the gas is collected by the water collecting member (62), and then the gas is discharged through the exhaust pipe (64); A water outlet pipe (63) is fixed to the bottom end of the partition plate (61), an electric valve is fixed to the water outlet pipe (63), and a float switch for controlling the opening and closing of the electric valve is fixed in the partition plate (61). After the electric valve is opened, the water collected in the partition plate (61) enters the water cavity (32).

2. The airway humidification oxygen inhalation device according to claim 1, characterized in that: A water inlet pipe (36) is fixed to a side of the outer box (31) away from the passive heating and humidifying component (4), and a drain pipe (37) is provided at the rear end of the outer box (31). Both the water inlet pipe (36) and the drain pipe (37) are in communication with the water cavity (32), facilitating water addition and drainage in the water cavity (32), and a liquid level gauge (7) for monitoring the water level in the water cavity (32) is fixed to the top of the outer box (31); An electric heating tube (34) for heating the water in the water cavity (32) is fixed in the heating cavity (33), and a disinfection lamp (38) for disinfecting and sterilizing the water cavity (32) is fixed at the top end of the water cavity (32).

3. The airway humidification oxygen inhalation device according to claim 1, characterized in that: The oxygen inlet pipe assembly further includes an air inlet pipe (2), a delivery pipe (21), a connecting pipe (22) and an oxygen connecting pipe (24); One end of the air inlet pipe (2) away from the delivery pipe (21) is connected to the air inlet of the oxygen mask (1), and a one-way valve is installed at the air inlet of the oxygen mask (1) to allow only oxygen in the air inlet pipe (2) to enter the oxygen mask (1), and the air pipe (35) is connected to the delivery pipe (21); The oxygen connecting pipe (24) is connected to the oxygen tube of the oxygen tank, and the oxygen enters the delivery tube (21) along the spiral tube (23) and the connecting tube (22), and then enters the oxygen mask (1) after carrying water vapor to supply oxygen to the patient.

4. The airway humidification oxygen inhalation device according to claim 1, characterized in that: The odd-numbered partitions (42) have openings (44) at their front ends, and the even-numbered partitions (42) have openings (44) at their rear ends. The plurality of flow cavities (43) are connected through the openings (44), thereby facilitating sufficient heat exchange between the exhaled gas and the oxygen in the spiral tube (23).

5. The airway humidification oxygen inhalation device according to claim 3, characterized in that: A temperature monitoring assembly (8) is fixed to the top of the outer box (31) on a side close to the outer shell (41). The temperature monitoring assembly (8) includes a hollow cylinder (81). The hollow cylinder (81) is located between the delivery pipe (21) and the connecting pipe (22). The delivery pipe (21), the hollow cylinder (81) and the connecting pipe (22) are connected in sequence. A temperature sensor (82) is fixed to the top of the hollow cylinder (81) for monitoring the temperature of oxygen after heat exchange with the exhaled gas.

6. The airway humidification oxygen inhalation device according to claim 3, characterized in that: A temperature and humidity monitoring mechanism (9) is fixed on the side of the top of the outer box (31) away from the outer shell (41). The temperature and humidity monitoring mechanism (9) includes a second hollow cylinder (91). The second hollow cylinder (91) is located between the air intake pipe (2) and the delivery pipe (21), and the air intake pipe (2), the second hollow cylinder (91) and the delivery pipe (21) are connected in sequence. A temperature and humidity sensor (92) is fixed on the top of the second hollow cylinder (91) for monitoring the temperature and humidity of the oxygen delivered to the oxygen mask (1).

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