Small portable emergency breathing machine

Abstract

This invention discloses a small, portable emergency ventilator, comprising a shell, a filter, a sterilization device, and a drug delivery device. An air pump is housed within the shell. The sterilization device includes an ultraviolet sterilization module and a spiral-skirt blade sterilization module. The output end of the air pump is connected to the filter. An air outlet tube is connected to the shell, and a face mask is attached to the air outlet tube. Air filtered by the filter passes through the ultraviolet sterilization module, the spiral-skirt blade sterilization module, and the drug delivery device before being output through the air outlet tube to the face mask. A strap is fixedly connected to the face mask. This invention actively delivers gas via an air pump, filters the gas delivered by the air pump through the filter to remove pathogenic microorganisms and harmful particles from the air, and sterilizes the air through the sterilization device to completely inactivate viruses and bacteria that may penetrate the filter, providing dual protection. The filter and sterilization devices are integrated into the shell, resulting in a small overall structure that is easy to carry.

Description

Technical Field

[0001] This invention relates to the field of emergency ventilator technology, specifically to a small portable emergency ventilator. Background Technology

[0002] An emergency ventilator is a medical device used for emergency ventilation and resuscitation, primarily providing mechanical ventilation support for patients with respiratory failure in emergency settings or during transport. It typically features a portable design and is equipped with medical gas cylinders and a battery power source to ensure stable operation in field or mobile environments.

[0003] Existing technology, as disclosed in Chinese Patent Publication No. CN223196400U, is a portable non-invasive ventilator comprising a housing, a connecting box located inside the right side of the housing, airbags mounted on the left and right sides of the connecting box, an exhaust pipe located at the rear of the connecting box, an air inlet pipe located at the front of the connecting box, a filter mechanism located at the front of the air inlet pipe, and a one-way valve mechanism located inside the air inlet and exhaust pipes facing each other. It manually pumps air by repeatedly pressing the airbags with a compression cap. Such traditional emergency respiratory support tools primarily rely on manual compression of the breathing bag, which suffers from low efficiency, uncontrollable pressure, and lack of filtration. While electric ventilators can partially solve these problems, they are bulky and expensive, making them unsuitable for emergency portability. In pre-hospital emergency care (such as battlefield, disaster relief, and transport), manual breathing bags are crucial for maintaining patient ventilation. Traditional breathing bags rely on rescuers to continuously squeeze the bag manually to generate positive pressure ventilation, which has obvious drawbacks: (1) operators are prone to fatigue and it is difficult to maintain effective ventilation for a long time; (2) the frequency and force of squeezing are difficult to maintain uniformity and stability, affecting the quality of ventilation; (3) in chemical, biological pollution or infectious disease environments, manual operation increases the risk of exposure, and the device itself lacks efficient filtration of inhaled gas, failing to protect patients from secondary harm. Although there are currently electric ventilators, they are bulky, expensive, and dependent on mains power, failing to meet the stringent requirements for portability and independent operation in extreme emergency scenarios. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems and provide a small portable emergency ventilator suitable for complex scenarios such as battlefields and disaster sites, integrating ventilation, sterilization, and adaptive drug delivery functions.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A small portable emergency ventilator includes a shell, a filter, a sterilization device, and a drug delivery device. An air pump is installed inside the shell. The sterilization device includes an ultraviolet sterilization module and a spiral skirt-blade sterilization module. The output end of the air pump is connected to the filter, the outlet end of the filter is connected to the ultraviolet sterilization module, the outlet end of the ultraviolet sterilization module is connected to the spiral skirt-blade sterilization module, and the outlet end of the spiral skirt-blade sterilization module is connected to the drug delivery device. An outlet pipe is connected to the shell, and the outlet end of the drug delivery device is connected to the outlet pipe. A face mask is connected to the outlet pipe. Air filtered by the filter passes through the ultraviolet sterilization module, the spiral skirt-blade sterilization module, and the drug delivery device before being output from the outlet pipe to the face mask. Straps are fixedly connected to the face mask.

[0007] Furthermore, the ultraviolet sterilization module includes a sterilization chamber disposed within the housing, and an ultraviolet lamp is disposed within the sterilization chamber.

[0008] Furthermore, the filtration device includes a filter cylinder and a filter element disposed inside the filter cylinder. The filter cylinder is fixed inside the housing. The output end of the air pump is connected to one end of the filter cylinder to deliver gas into the filter cylinder. The other end of the filter cylinder is connected to the sterilization chamber through an air pipe.

[0009] Furthermore, the spiral skirt blade sterilization module includes a cylindrical body and a spiral skirt blade disposed within the cylindrical body. The cylindrical body is connected to the sterilization chamber via an air pipe, allowing airflow to enter the cylindrical body. The spiral skirt blade is spirally arranged on the inner wall of the cylindrical body and is fixed to the inner wall of the cylindrical body by an insulating material. The inner edge of the spiral skirt blade is provided with a serrated structure. A capacitor unit is disposed on the side wall of the cylindrical body, and an energy storage battery is disposed within the housing. The negative terminal of the energy storage battery is connected to the cylindrical body. The spiral skirt blade and the cylindrical body are made of conductive metallic materials. The negative terminal of the capacitor unit is connected to the spiral skirt blade, and the positive terminal of the capacitor unit is connected to the positive terminal of the energy storage battery through a superconducting thin film. When the spiral skirt blade is energized, the serrated structure discharges, electrostatically sterilizing the passing air.

[0010] Furthermore, the air outlet pipe is connected to a one-way valve, a pressure safety valve, a duckbill valve, and a breathing valve. The one-way valve is located at the connection between the air outlet pipe and the housing, and the pressure safety valve is located on the side of the one-way valve away from the housing. The breathing valve is located at the connection between the air outlet pipe and the mask, and the duckbill valve is located on the side of the breathing valve away from the mask.

[0011] Furthermore, the drug delivery device includes an atomizing chamber and a medicine bottle connected to the atomizing chamber. The atomizing chamber is provided with an airflow channel, and a connecting cavity is opened on one side of the airflow channel. A fine hole communicating with the middle of the airflow channel is opened on the connecting cavity, and a straw is fixedly connected to the fine hole. The mouth of the medicine bottle is snapped into the connecting cavity, and the straw is inserted into the medicine bottle and extends to the bottom of the medicine bottle. A groove is provided in the airflow channel at the straw connection point, and an ultrasonic atomizing plate is provided in the groove.

[0012] Furthermore, an installation cavity is provided on the side wall of the connecting cavity in the nebulization chamber. A locking pin is provided in the installation cavity. The end of the locking pin extends into the connecting cavity and engages below the bottle mouth step of the medicine bottle to lock the medicine bottle. A spring is provided in the installation cavity. The end of the spring abuts against the end of the locking pin away from the medicine bottle.

[0013] Furthermore, a guide slope is provided on the lower surface of the locking pin near the end of the medicine bottle; the guide slope is used to press against the mouth of the medicine bottle to retract the locking pin into the installation cavity, so that the upper mouth of the medicine bottle can be inserted into the connecting cavity.

[0014] Furthermore, a sliding groove is provided at the bottom of the atomizing chamber, and a toggle lever is fixedly connected to the lower end of the locking pin. The toggle lever is located in the sliding groove. A drive ring is rotatably connected to the bottom of the atomizing chamber. One side of the drive ring extends to the outside of the housing to facilitate manual rotation of the drive ring. A toggle groove is provided on the drive ring, and the lower end of the toggle lever extends into the toggle groove. The inner edge of the toggle groove is an arc-shaped groove with a gradually increasing distance from the center of the drive ring. After the drive ring rotates, the toggle groove drives the toggle lever to move, causing the locking pin to retract into the mounting cavity. The outer edge of the toggle groove is located on a circle centered on the drive ring.

[0015] Furthermore, the housing is provided with mesh holes, which are located on the side of the air pump.

[0016] Furthermore, the straps are provided on both sides of the mask, with two straps on each side. The ends of the straps away from the mask are provided with matching Velcro, so that the straps on both sides of the mask are connected by Velcro to limit the mask to the patient's face.

[0017] The small portable emergency ventilator provided by this invention has the following beneficial effects: it actively delivers gas through an air pump, filters the gas delivered by the air pump through a filter device to filter out pathogenic microorganisms and harmful particles in the air; it sterilizes the filtered air through an ultraviolet sterilization module, and performs secondary sterilization through a spiral skirt blade sterilization module to completely inactivate viruses and bacteria that may penetrate the filter device, providing dual protection; the filter device, ultraviolet sterilization module, spiral skirt blade sterilization module, drug delivery device and air pump are integrated into the shell, with a small overall structure that is easy to carry. Attached Figure Description

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the small portable emergency ventilator provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the drug delivery device in the small portable emergency ventilator provided by the present invention.

[0021] Figure 3 for Figure 2 A schematic diagram of the partial structure of part A in the middle.

[0022] Figure 4 This is a partial structural diagram of the skirt blade sterilization module in the small portable emergency ventilator provided by the present invention.

[0023] Figure 5 This is a top view of the actuating ring in the small portable emergency ventilator provided by the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the actuating ring in the small portable emergency ventilator provided by the present invention.

[0025] The following are the labeling instructions in the diagram: 1. Shell; 2. Filter device; 21. Filter cylinder; 22. Filter element; 3. Ultraviolet sterilization module; 31. Sterilization chamber; 32. Ultraviolet lamp; 4. Air pump; 5. Air outlet pipe; 51. One-way valve; 52. Pressure safety valve; 53. Duckbill valve; 54. Breathing valve; 6. Mask; 61. Straps; 7. Spiral skirt blade sterilization module; 71. Cylinder; 72. Spiral skirt blade; 73. Capacitor unit; 74. Energy storage battery; 8. Drug delivery device; 81. Nebulizer chamber; 811. Airflow channel; 812. Connecting cavity; 813. Mounting cavity; 814. Slide; 82. Medicine bottle; 83. Straw; 84. Locking pin; 841. Guide slope; 842. Actuating rod; 85. Spring; 86. Drive ring; 861. Actuating groove; 87. Ultrasonic nebulizer plate. Detailed Implementation

[0026] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that in the embodiments of the present invention, all directional indications (such as up-down-left-right-forward-backward...) are only used to explain the relative positional relationship and movement between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0029] like Figures 1-6 As shown, a small portable emergency ventilator includes a housing 1, a filter device 2, a sterilization device, and a drug delivery device 8. An air pump 4 is installed inside the housing 1, and the output end of the air pump 4 is connected to the filter device 2. The sterilization device includes an ultraviolet sterilization module 3 and a spiral skirt blade sterilization module 7. The air outlet of the filter device 2 is connected to the ultraviolet sterilization module 3, and the air outlet of the ultraviolet sterilization module 3 is connected to the spiral skirt blade sterilization module 7. The air outlet of the spiral skirt blade sterilization module 7 is connected to the drug delivery device 8. An air outlet pipe 5 is connected to the housing 1, and the air outlet of the drug delivery device 8 is connected to the air outlet pipe 5. A face mask 6 is connected to the air outlet pipe 5. The air filtered by the filter device 2 passes through the ultraviolet sterilization module 3, the spiral skirt blade sterilization module 7, and the drug delivery device 8, and is then output from the air outlet pipe 5 to the face mask 6. A strap 61 is fixedly connected to the face mask 6.

[0030] Using the above technical solution, gas is actively delivered by an air pump 4, and the gas delivered by the air pump 4 is filtered by a filter device 2 to remove pathogenic microorganisms and harmful particles from the air. The filtered air is then sterilized by an ultraviolet sterilization module 3 and further sterilized by a spiral skirt blade sterilization module 7, completely inactivating viruses and bacteria that may penetrate the filter device 2, providing dual protection. The filter device 2, ultraviolet sterilization module 3, spiral skirt blade sterilization module 7, and drug delivery device 8 are integrated into the housing 1, resulting in a small overall structure that is easy to carry. The drug delivery device 8 mixes atomized medication into the respirable gas, thereby enabling nebulized drug delivery to the patient. Specifically, the mask 6 has an inflatable sealing ring at its edge, made of medical-grade silicone, and is secured by straps 61 that fit different facial contours, facilitating stable air delivery. It should be noted that the housing 1 contains a storage battery 74, which provides power to the air pump 4 and the ultraviolet sterilization module 3, and controls the on / off state of their power supply circuits via a switch. The storage battery 74 also powers the spiral skirt blade sterilization module 7 and the drug delivery device 8, providing them with electrical energy for operation. Preferably, the middle section of the air outlet pipe 5 is made of corrugated tubing, allowing for longer delivery distances and enabling retraction for easy storage when not in use.

[0031] Specifically, the filtration device 2 includes a filter cartridge 21 and a filter element 22 disposed within the filter cartridge 21. The filter cartridge 21 is fixed inside the housing 1. The output end of the air pump 4 is connected to one end of the filter cartridge 21 to deliver gas into the filter cartridge 21. The other end of the filter cartridge 21 is connected to the sterilization chamber 31 via an air pipe. Specifically, the filter element 22 is a HEPA (High-Efficiency Particulate Air) filter element, which can effectively filter pathogenic microorganisms and harmful particles in the air.

[0032] Specifically, the ultraviolet sterilization module 3 includes a sterilization chamber 31 disposed within the housing 1, and an ultraviolet lamp 32 is disposed within the sterilization chamber 31. Specifically, the ultraviolet lamp 32 is a UVC band ultraviolet lamp 32, which sterilizes the air passing through it.

[0033] Specifically, the spiral skirt blade sterilization module 7 includes a cylinder 71 and a spiral skirt blade 72 disposed inside the cylinder 71. The cylinder 71 is connected to the sterilization chamber 31 via an air pipe, allowing airflow to enter the cylinder 71. The spiral skirt blade 72 is spirally arranged on the inner wall of the cylinder 71. The spiral skirt blade 72 and the cylinder 71 are made of conductive metal materials. The spiral skirt blade 72 is fixed to the inner wall of the cylinder 71 by an insulating material, so that the circuit between the spiral skirt blade 72 and the cylinder 71 is not connected through a conductor. The inner edge of the spiral skirt blade 72 is provided with a serrated structure. A capacitor unit 73 is provided on the side wall of the cylinder 71. An energy storage battery 74 is provided inside the housing 1. The negative terminal of the energy storage battery 74 is connected to the cylinder 71. The negative terminal of the capacitor unit 73 is connected to the spiral skirt blade 72. The positive terminal of the capacitor unit 73 is connected to the positive terminal of the energy storage battery 74 through a superconducting thin film. When the spiral skirt blade 72 is energized, the serrated structure discharges, electrostatically sterilizing the passing air. Specifically, other components connected to the cylinder 71 are insulators, thereby reducing power loss. When air passes through the spiral skirt blade 72, it forms a vortex through the spiral channel. Microorganisms in the air pass through the focused electric field multiple times with the air vortex, and their DNA double strands are destroyed by the quantum tunneling effect, and their cell membranes are broken down by the strong electric field coupled with magnetoelectricity, resulting in high sterilization efficiency. Moreover, there is no complex control circuit throughout the process. The efficiency leap is achieved through physical field coupling, which is suitable for the core requirements of high flow rate, airtightness, and low resistance of ventilators. In the capacitor unit 73, the positive electrode is a carbon material layer and the negative electrode is a graphene composite material layer. Its negative electrode is connected to the spiral skirt blade 72 on the inner wall of the cylinder 71 to achieve continuous instantaneous discharge: the superconducting thin film smoothly receives the power provided by the energy storage battery 74 for replenishment, and releases high-voltage pulse power to provide the spiral skirt blade 72 with an instantaneous electric field that meets the quantum tunneling effect and sterilization requirements. It can quickly replenish power between pulses to achieve continuous instantaneous pulse discharge, fast charging and fast discharging, and ensure that the sterilization electric field is uninterrupted. The superconducting thin film enables efficient energy transfer through low resistance; it receives the smooth constant voltage output of the energy storage battery 74 and replenishes the capacitor power supply 73 at a stable rate, avoiding the energy storage battery 74 from being directly subjected to the impact of instantaneous pulse discharge of the capacitor, thus extending the battery life.

[0034] Specifically, the air outlet pipe 5 is connected to a one-way valve 51, a pressure safety valve 52, a duckbill valve 53, and a breathing valve 54. The one-way valve 51 is located at the connection between the air outlet pipe 5 and the housing 1, and the pressure safety valve 52 is located on the side of the one-way valve 51 away from the housing 1. The breathing valve 54 is located at the connection between the air outlet pipe 5 and the mask 6, and the duckbill valve 53 is located on the side of the breathing valve 54 away from the mask 6. The one-way valve 51 ensures that the airflow flows unidirectionally towards the mask 6, thus preventing cross-infection. The pressure safety valve 52 provides a safe pressure for the air path, preventing excessive pressure in the air outlet pipe 5 and depressurizing when the pressure exceeds the threshold. Specifically, the safety valve has a preset pressure value (e.g., 2-4 kPa) by rotating the knob on the top of the valve. It automatically releases pressure when overpressure occurs to protect the patient's lungs. The duckbill valve 53 ensures that the gas flows unidirectionally towards the mask 6, preventing backflow of gas and re-inhalation of carbon dioxide. The breathing valve 54 has a three-way structure, including an air inlet, a mask 6 interface, and an exhalation port, to achieve unidirectional airflow and avoid carbon dioxide retention. The mask 6 interface is connected to the mask 6, the air inlet is connected to the exhaust pipe 5 to deliver air to the mask 6, and the breathing port is connected to the external environment to expel the exhaled gas to the outside of the mask 6.

[0035] Specifically, the drug delivery device 8 includes an nebulizing chamber 81 and a medicine bottle 82 connected to the nebulizing chamber 81. The nebulizing chamber 81 has an airflow channel 811, and a connecting cavity 812 is formed on one side of the airflow channel 811. A fine hole communicating with the middle of the airflow channel 811 is formed in the connecting cavity 812, and a straw 83 is fixedly connected to the fine hole. The mouth of the medicine bottle 82 is engaged in the connecting cavity 812, and the straw 83 is inserted into the medicine bottle 82 and extends to the bottom of the medicine bottle 82. A groove is formed in the airflow channel 811 at the connection point of the straw 83, and an ultrasonic nebulizing plate 87 is disposed in the groove. The drug delivery device 8 mixes the nebulized medication into the patient's breathing gas, thereby achieving nebulized drug delivery. The ultrasonic nebulizing plate 87 can atomize passing water droplets, making the atomized particles smaller and faster. Specifically, the ultrasonic nebulizing plate 87 is electrically connected to the energy storage battery 74 through a circuit to enable ultrasonic nebulization after power is applied.

[0036] Specifically, the nebulizer chamber 81 has an installation cavity 813 on the side wall of the connecting cavity 812. A locking pin 84 is provided in the installation cavity 813, with its end extending into the connecting cavity 812 and engaging below the bottle mouth step of the medicine bottle 82 to lock the medicine bottle 82. A spring 85 is provided in the installation cavity 813, with its end abutting against the end of the locking pin 84 away from the medicine bottle 82. When the medicine bottle 82 is pressed into the connecting cavity 812, the bottle mouth end of the medicine bottle 82 presses against the locking pin 84, causing the locking pin 84 to retract into the installation cavity 813. The bottle mouth of the medicine bottle 82 then abuts upwards against the upper end of the connecting cavity 812. Under the elastic force of the spring 85, when the locking pin 84 is aligned with the step below the bottle mouth, the locking pin 84 pops out and engages below the bottle mouth step to lock the medicine bottle 82.

[0037] Specifically, a guide slope 841 is provided on the lower surface of the locking pin 84 near the end of the medicine bottle 82; the guide slope 841 is used to press against the mouth of the medicine bottle 82 to retract the locking pin 84 into the installation cavity 813 so that the upper mouth of the medicine bottle 82 can be inserted into the connecting cavity 812.

[0038] Specifically, the bottom of the atomizing chamber 81 is provided with a sliding groove 814, and the lower end of the locking pin 84 is fixedly connected to a toggle lever 842. The toggle lever 842 is located in the sliding groove 814. The bottom of the atomizing chamber 81 is rotatably connected to a drive ring 86. One side of the drive ring 86 extends to the outside of the housing 1 to facilitate manual rotation of the drive ring 86. The drive ring 86 is provided with a toggle groove 861, and the lower end of the toggle lever 842 extends into the toggle groove 861. The inner edge of the toggle groove 861 is an arc-shaped groove with the distance between the inner edge of the groove and the center of the drive ring 86 gradually increasing. After the drive ring 86 rotates, the toggle groove 861 drives the toggle lever 842 to move, causing the locking pin 84 to retract into the mounting cavity 813. The outer edge of the toggle groove 861 is located on a circle centered on the drive ring 86. This causes the width of one end of the actuating groove 861 to gradually increase. When the actuating rod 842 is located at the wider end of the actuating groove 861, the actuating rod 842 can move freely. When the rotating drive ring 86 causes the actuating rod 842 to be located at the narrower end of the actuating groove 861, the actuating groove 861 drives the actuating rod 842 to move away from the center of the drive ring 86. This causes the actuating rod 842 to drive the locking pin 84 to retract into the mounting cavity 813, releasing the locking state of the medicine bottle 82, thus facilitating the replacement of the medicine bottle 82.

[0039] Specifically, the housing 1 has mesh holes located on one side of the air pump 4. These mesh holes facilitate heat dissipation.

[0040] Specifically, the straps 61 are provided on both sides of the mask 6, and two straps 61 are provided on each side of the mask 6. The ends of the straps 61 away from the mask 6 are provided with matching Velcro, so that the straps 61 on both sides of the mask 6 are connected by Velcro to limit the mask 6 to the patient's face.

[0041] During operation, the mask 6 is placed over the patient's face, and the straps 61 are secured to the patient's head using Velcro to fix the mask 6 in place. The air pump 4 is activated, and the ultraviolet sterilization module 3 and the spiral skirt blade sterilization module 7 are powered on to begin sterilization. The air pump 4 pressurizes the air and delivers it to the filter device 2, where it is filtered through the filter element 22. The filtered air then enters the ultraviolet sterilization module 3 for ultraviolet sterilization. The sterilized air then enters the spiral skirt blade sterilization module 7 for further secondary sterilization. The compressed air after secondary sterilization enters the atomizing chamber 81 and is then delivered to the face mask. In the mask 6, air is actively supplied to the patient. When medication is needed, a medicine bottle 82 containing the liquid medication is installed in the medication delivery device 8. The ultrasonic atomizing plate 87 is connected to the energy storage battery 74. When pressurized air passes rapidly through the airflow channel 811 in the atomizing chamber 81, the liquid medication in the medicine bottle 82 is drawn into the airflow channel 811 through the Venturi effect. When the liquid medication enters the airflow channel 811, the ultrasonic atomizing plate 87 atomizes the passing droplets to form an aerosol that mixes with the compressed air and enters the air outlet pipe 5. It is then delivered unidirectionally to the mask 6, delivering the air and liquid medication to the patient's respiratory tract.

[0042] The parts not covered in this technical solution can be implemented using existing technologies.

[0043] The foregoing has shown and described the basic principles, main features, and characteristics of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention includes the appended claims and their equivalents.

Claims

1. A small portable emergency respirator, characterized in that: The device includes a housing (1), a filter (2), a sterilization device, and a drug delivery device (8). An air pump (4) is installed inside the housing (1), and the output end of the air pump (4) is connected to the filter (2). The sterilization device includes an ultraviolet sterilization module (3) and a spiral skirt blade sterilization module (7). The air outlet of the filter (2) is connected to the ultraviolet sterilization module (3), and the air outlet of the ultraviolet sterilization module (3) is connected to the spiral skirt blade sterilization module (7). The air outlet of the sterilization module (7) is connected to the drug delivery device (8). An air outlet pipe (5) is connected to the housing (1). The air outlet of the drug delivery device (8) is connected to the air outlet pipe (5). A face mask (6) is connected to the air outlet pipe (5). The air filtered by the filter device (2) passes through the ultraviolet sterilization module (3), the spiral skirt blade sterilization module (7), and the drug delivery device (8) and is output from the air outlet pipe (5) to the face mask (6). A strap (61) is fixedly connected to the face mask (6).

2. The small portable emergency respirator according to claim 1, characterized in that: The ultraviolet sterilization module (3) includes a sterilization chamber (31) disposed inside the housing (1), and an ultraviolet lamp (32) is disposed inside the sterilization chamber (31).

3. The small portable emergency respirator according to claim 2, characterized in that: The filtration device (2) includes a filter cylinder (21) and a filter element (22) disposed inside the filter cylinder (21). The filter cylinder (21) is fixed inside the housing (1). The output end of the air pump (4) is connected to one end of the filter cylinder (21) to deliver gas to the filter cylinder (21). The other end of the filter cylinder (21) is connected to the sterilization chamber (31) through an air pipe.

4. The small portable emergency respirator according to claim 3, characterized in that: The spiral skirt blade sterilization module (7) includes a cylinder (71) and a spiral skirt blade (72) disposed inside the cylinder (71). The cylinder (71) is connected to the sterilization chamber (31) via an air pipe, allowing airflow to enter the cylinder (71). The spiral skirt blade (72) is spirally arranged on the inner wall of the cylinder (71). The spiral skirt blade (72) and the cylinder (71) are made of conductive metal materials. The spiral skirt blade (72) is fixed to the inner wall of the cylinder (71) by an insulating material. The inner edge is provided with a serrated structure. A capacitor unit (73) is provided on the side wall of the cylinder (71). An energy storage battery (74) is provided inside the shell (1). The negative electrode of the energy storage battery (74) is connected to the cylinder (71). The negative electrode of the capacitor unit (73) is connected to the spiral skirt blade (72). The positive electrode of the capacitor unit (73) is connected to the positive electrode of the energy storage battery (74) through a superconducting thin film. When the spiral skirt blade (72) is energized, the serrated structure discharges to electrolyze and sterilize the air passing through it.

5. The small portable emergency respirator according to claim 4, characterized in that: The air outlet pipe (5) is connected to a one-way valve (51), a pressure safety valve (52), a duckbill valve (53), and a breathing valve (54). The one-way valve (51) is located at the connection between the air outlet pipe (5) and the housing (1), and the pressure safety valve (52) is located on the side of the one-way valve (51) away from the housing (1). The breathing valve (54) is located at the connection between the air outlet pipe (5) and the mask (6), and the duckbill valve (53) is located on the side of the breathing valve (54) away from the mask (6).

6. The small portable emergency respirator according to claim 4, characterized in that: The drug delivery device (8) includes an atomizing chamber (81) and a medicine bottle (82) connected to the atomizing chamber (81). The atomizing chamber (81) is provided with an airflow channel (811). A connecting cavity (812) is opened on one side of the airflow channel (811). A fine hole communicating with the middle of the airflow channel (811) is opened on the connecting cavity (812). A straw (83) is fixedly connected in the fine hole. The mouth of the medicine bottle (82) is snapped into the connecting cavity (812). The straw (83) is inserted into the medicine bottle (82) and extends to the bottom of the medicine bottle (82). A groove is provided in the airflow channel (811) at the connection of the straw (83). An ultrasonic atomizing plate (87) is provided in the groove.

7. The small portable emergency respirator according to claim 6, characterized in that: An installation cavity (813) is provided on the side wall of the connecting cavity (812) in the atomizing chamber (81). A locking pin (84) is provided in the installation cavity (813). The end of the locking pin (84) extends into the connecting cavity (812) and is engaged below the bottle mouth step of the medicine bottle (82) to lock the medicine bottle (82). A spring (85) is provided in the installation cavity (813). The end of the spring (85) abuts against the end of the locking pin (84) away from the medicine bottle (82).

8. The small portable emergency respirator according to claim 7, characterized in that: The lower surface of the locking pin (84) near the medicine bottle (82) is provided with a guide slope (841); the guide slope (841) is used to press against the mouth of the medicine bottle (82) so that the locking pin (84) retracts into the installation cavity (813) so that the upper mouth of the medicine bottle (82) can be inserted into the connecting cavity (812).

9. The small portable emergency respirator according to claim 8, characterized in that: The bottom of the atomizing chamber (81) is provided with a sliding groove (814). The lower end of the locking pin (84) is fixedly connected to a lever (842). The lever (842) is located in the sliding groove (814). The bottom of the atomizing chamber (81) is rotatably connected to a drive ring (86). One side of the drive ring (86) extends to the outside of the housing (1) to facilitate manual rotation of the drive ring (86). The drive ring (86) is provided with a lever groove (86). 1) The lower end of the actuating rod (842) extends into the actuating groove (861). The inner groove edge of the actuating groove (861) is an arc-shaped groove with the distance between the inner groove edge and the center of the drive ring (86) gradually increases. After the drive ring (86) rotates, the actuating groove (861) drives the actuating rod (842) to move, causing the locking pin (84) to retract into the mounting cavity (813). The outer groove edge of the actuating groove (861) is located on a circle with the drive ring (86) as the center.

10. The small portable emergency respirator according to claim 2, characterized in that: The housing (1) has a mesh hole located on one side of the air pump (4); the straps (61) are arranged on both sides of the mask (6) and two straps (61) are arranged on each side of the mask (6). The ends of the straps (61) away from the mask (6) are provided with matching Velcro, so that the straps (61) on both sides of the mask (6) are connected by Velcro to limit the mask (6) to the patient's face.

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