Tuberculosis ward atomization respirator with negative pressure collection function

Abstract

The invention relates to the technical field of medical instruments, in particular to a tuberculosis ward atomization respirator with a negative pressure collection function, comprising: a mask assembly, the mask assembly comprises a breathing mask and a sealing strip, and the breathing mask is internally provided with an air pressure sensor for identifying air pressure change; the atomization assembly is connected with the mask assembly and used for intermittently conveying atomized medicine into the breathing mask. During expiration, the airflow adjusting assembly does not hinder the gas flow rate of the gas feeding pipe, the gas flow rate is increased, and a low-pressure area is formed at the position of the pressure-adjustable one-way valve assembly, so that the pressure-adjustable one-way valve assembly does not hinder communication of the exhaust pipe and the negative-pressure pipe; the exhaust gas in the breathing mask is exhausted outwards through the exhaust pipe and the negative pressure pipe, the airflow adjusting assembly reduces the gas flow rate of the gas feeding pipe at the end of expiration, negative pressure collection is not conducted on the gas in the breathing mask at the end of expiration any more, namely positive pressure is provided at the end of expiration, and early closure of pulmonary alveoli is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a nebulized respirator for tuberculosis wards with negative pressure collection function. Background Technology

[0002] Tuberculosis is a droplet-borne infectious disease, mainly spread by droplets produced when patients cough, sneeze, or talk. Nebulizers are devices used to treat upper respiratory tract diseases, primarily various respiratory system diseases. They are an important and effective treatment method for respiratory diseases. The nebulizer atomizes the medication into tiny particles, which are then inhaled into the respiratory tract and lungs to treat the lungs.

[0003] For example, CN115569277A discloses a nebulized respirator for tuberculosis with negative pressure collection function. This solves the problem of cross-infection caused by the inhalation of exhaled air by medical staff and others during treatment with traditional nebulized respirators. The nebulized respirator for tuberculosis with negative pressure collection function includes a nebulizer, a first electrically operated three-way valve connected to the nebulizer via a connecting pipe, a nebulizing cup connected to one outlet of the first electrically operated three-way valve via a first connecting pipe, a mask connected to one side of the nebulizing cup, and an air outlet at the lower part of the mask connected to a buffer assembly via a third connecting pipe. This method collects the patient's exhaled air throughout the entire process through negative pressure extraction. The buffer assembly alleviates the pressure during negative pressure extraction, preventing a large amount of air from being instantly extracted from the mask, causing a momentary depressurization within the mask, resulting in difficulty switching breathing and causing discomfort to the patient.

[0004] However, in actual use, the above technology cannot adjust the negative pressure level, and the entire exhalation is in a negative pressure environment, failing to achieve positive pressure at the end of exhalation, which affects the patient's treatment effect. Furthermore, it is only used to collect harmful gases and does not have a positive impact on the patient's treatment. Summary of the Invention

[0005] The purpose of this invention is to provide a nebulized respirator for tuberculosis wards with negative pressure collection function, in order to solve the problems that failure to achieve positive end-expiratory pressure affects the cure rate of patients, and that using it only to collect harmful gases does not have a positive impact on the treatment of patients.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nebulized respirator for tuberculosis wards with negative pressure collection function, comprising:

[0007] A mask assembly, comprising a breathing mask and a sealing strip, wherein the breathing mask is provided with a pressure sensor for detecting changes in air pressure;

[0008] A nebulizing assembly connected to a mask assembly, the nebulizing assembly being used to intermittently deliver nebulized medication into the breathing mask so that the breathing mask is filled with nebulized liquid and maintains positive pressure during inhalation;

[0009] Connecting pipes used to deliver gas into the atomizing assembly;

[0010] The bottom of the breathing mask is fixedly connected to an exhaust pipe, and the bottom of the exhaust pipe is threaded with a negative pressure pipe. The inner wall of the negative pressure pipe at one end corresponding to the position of the exhaust pipe is provided with a pressure adjustable one-way valve assembly. One end of the middle of the negative pressure pipe is fixedly provided with an air supply pipe, and the gas delivered in the air supply pipe flows away from the pressure adjustable one-way valve assembly inside the negative pressure pipe, so that the pressure adjustable one-way valve assembly is located in a low-pressure area.

[0011] Both the gas supply pipe and the connecting pipe are equipped with airflow regulating components in their middle sections for adjusting the gas flow rate within the gas supply pipe and the connecting pipe. These airflow regulating components are used to:

[0012] During inhalation, adjust the connecting tube to maintain the maximum flow rate, and adjust the air delivery tube to maintain the minimum flow rate.

[0013] During exhalation, adjust the connecting tube to maintain the minimum flow rate initially, and then maintain the maximum flow rate at the end of exhalation. Adjust the delivery tube to maintain the maximum flow rate initially, and then maintain the minimum flow rate at the end of exhalation.

[0014] Preferably, the sealing strip is fixedly connected to the position where the breathing mask fits against the user's skin, and the sealing strip is a silicone material component to ensure that the breathing mask fits comfortably against the user's skin. One end of the air delivery tube is fixedly connected to an air pump, and the connecting tube is connected to the ward's nebulizer air source interface.

[0015] Preferably, the atomizing component includes an atomizing cup, with a storage tube movably inserted into the top output end of the atomizing cup. The storage tube is a tubular structure with a closed top and an open bottom. Temporary storage tubes are rotatably connected to the top and bottom of the storage tube. Multiple connecting pieces are fixedly connected to one end of the opposite sides of the two temporary storage tubes. An elastic bladder is fixedly connected to the inner wall of the two temporary storage tubes and the top of the top temporary storage tube. The elastic bladder is made of an elastic material, and the interiors of the elastic bladder, temporary storage tubes, storage tubes, and atomizing cup are all interconnected.

[0016] Preferably, a plurality of mist outlet tubes are fixedly embedded on the surface of the storage tube, and the interior of the mist outlet tubes is connected to the interior of the storage tube. A connecting hole is provided on the side wall of the temporary storage tube corresponding to the position of the mist outlet tube, and the interior of the temporary storage tube is connected to the interior of the mist outlet tube through the connecting hole. The mist outlet tube is fixedly embedded in the middle of the breathing mask.

[0017] Preferably, a limiting ring is fixedly connected to the surface of the temporary storage tube, and a limiting groove is formed on the inner wall of the storage tube corresponding to the position of the limiting ring. The limiting ring is rotatably connected to the inner wall of the limiting groove so that the temporary storage tube is positioned by the limiting ring cooperating with the limiting groove.

[0018] Preferably, the surface of the storage tube is provided with an atomization control component. The atomization control component includes a fixed shell that is fixedly embedded in the middle of the storage tube. A first electromagnet is fixedly embedded at both ends of the fixed shell. A mounting plate is fixedly connected to the surface of one of the connecting pieces. A first magnet block is fixedly embedded in the middle of the mounting plate. A reset spring is fixedly connected to both ends of the mounting plate, and the reset spring is fixedly connected to the inner wall of the fixed shell.

[0019] Preferably, the pressure-adjustable one-way valve assembly includes a guide ring fixedly connected to the inner wall of one end of the negative pressure pipe corresponding to the exhaust pipe position. A connecting block is fixedly connected to the inner wall of the guide ring. A flow guide head is fixedly connected to the middle of the connecting block. A sealing plate, made of elastic material, is fixedly connected to the surface of the flow guide head. The sealing plate is tightly fitted to the guide ring, and multiple ring-shaped connecting strips are fixedly connected to the end of the sealing plate away from the flow guide head. A fixing cover is fixedly connected to the end of the flow guide head away from the exhaust pipe position. An air bladder, also made of elastic material, is fixedly connected to the end of the fixing cover away from the flow guide head position. The interior of the airbag is connected to the interior of the fixed cover, and the air pressure inside the airbag and the fixed cover is the standard air pressure. The fixed cover and the guide head are both conical structures. A pad is fixedly connected to the surface of the airbag, and a drive strip is fixedly connected to the surface of the pad. The drive strip is fixedly connected to the end of the connecting strip away from the center of the sealing plate, and the drive strip is attached to the surface of the airbag. The center thickness of the sealing plate is greater than the edge thickness. A guide tube is fixedly connected to the middle of the negative pressure pipe, and the air supply pipe is movably inserted into the inner wall of the guide tube. The guide tube is a 90° bend so that the airflow in the air supply pipe flows in the middle of the negative pressure pipe along the direction away from the exhaust pipe.

[0020] Preferably, the airflow regulating assembly includes an regulating housing, which is fixedly connected to the middle of the connecting pipe and the air supply pipe. A first connecting pipe is fixedly connected to the middle of each of the connecting pipe and the air supply pipe corresponding to the position of the regulating housing. A sealing ring is fixedly connected to the inner wall of the first connecting pipe corresponding to the gas source direction, and a second connecting pipe is fixedly connected to the inner wall of the sealing ring. One end of the second connecting pipe corresponding to the gas flow direction is closed. Multiple third connecting pipes are fixedly connected to the side walls of both the first and second connecting pipes. Multiple air outlets are provided on the side wall of the first connecting pipe, so that the gas flow direction inside the regulating housing is:

[0021] First, it enters the interior of the second connecting pipe from one end of the opening, then it is discharged outward through multiple third connecting pipes, then enters the position between the first and second connecting pipes through the vent hole, and finally flows out through the end of the first connecting pipe away from the sealing ring.

[0022] Preferably, the inner walls of the adjusting housing corresponding to the connecting pipe and the air supply pipe are respectively fixedly connected with an elastic tube and a first fixed tube. The second connecting pipe, the first connecting pipe, the elastic tube, and the first fixed tube are arranged sequentially from the inside to the outside. The elastic tube is a component of an elastic material. The middle part of the inner wall of the adjusting housing is fixedly connected with a second fixed tube. The different ends of the side walls of the two first fixed tubes corresponding to the second fixed tubes are respectively fixedly embedded with a fourth connecting tube, and the fourth connecting tube is fixedly embedded in the side wall of the second fixed tube, so that the two first fixed tubes corresponding to the connecting pipe and the air supply pipe are connected through the fourth connecting tube. The tube is connected to both ends of the second fixed tube. A movable ring is movably connected to the inner wall of the second fixed tube. A second magnet is fixedly connected to the inner wall of the movable ring. Corrugated pipes are fixedly connected to both ends of the movable ring, and the corrugated pipes are fixedly connected to the inner wall of the second fixed tube, so that the corrugated pipes, together with the movable ring and the second magnet, divide the interior of the second fixed tube into two non-communicating cavities. Two second electromagnets are fixedly connected to the inner wall of the adjusting housing corresponding to the position of the second fixed tube, so that the two second electromagnets cooperate to drive the second magnet to move the movable ring along the direction of the second fixed tube.

[0023] Preferably, a guide block is fixedly connected to the surface of the movable ring, and a guide groove is provided on the side wall of the second fixed tube corresponding to the position of the guide block. The guide block is movably connected to the inner wall of the guide groove so that the guide block cooperates with the guide groove to guide the movement of the movable ring.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. This invention achieves this by ensuring that the airflow regulating component does not obstruct the gas flow rate in the air delivery tube during exhalation, thereby increasing the gas flow rate inside the air delivery tube and creating a low-pressure zone at the position of the pressure-adjustable one-way valve component. This ensures that the pressure-adjustable one-way valve component does not obstruct the connection between the exhaust pipe and the negative pressure pipe, allowing the exhaust gas inside the breathing mask to be discharged outward through the exhaust pipe and the negative pressure pipe. At the end of exhalation, the airflow regulating component reduces the gas flow rate in the air delivery tube, so that the gas inside the breathing mask is no longer collected under negative pressure at the end of exhalation, i.e., positive pressure is provided at the end of exhalation, thus preventing early closure of the alveoli.

[0026] 2. This invention also provides an auxiliary therapeutic effect for users by incorporating a pressure sensor. Initially, the pressure sensor detects the patient's exhalation. Based on the patient's condition, the airflow regulation component, in conjunction with the nebulization control component, adjusts the connecting tube and air delivery tube, gradually altering the breathing rhythm. During inhalation, a positive pressure is maintained inside the breathing mask to assist in airway expansion, support alveolar opening, reduce inspiratory resistance, and help the patient complete effective inhalation. During exhalation, a negative pressure is maintained inside the breathing mask initially to assist in expelling residual gas from the alveoli and reduce gas retention caused by expiratory weakness. A positive pressure is maintained at the end of exhalation to prevent premature alveolar closure, thereby achieving the goal of assisting the patient's breathing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the overall structure of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the air pressure sensor structure of the nebulized respirator with negative pressure collection function for tuberculosis wards according to the present invention;

[0030] Figure 4 This is a cross-sectional view of the negative pressure regulating component of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention;

[0031] Figure 5 This is an exploded view of the negative pressure regulating component of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention.

[0032] Figure 6 This is a schematic diagram of the nebulizer assembly of the nebulizer with negative pressure collection function for tuberculosis wards according to the present invention;

[0033] Figure 7 This is a cross-sectional view of the nebulizer assembly of the nebulizer with negative pressure collection function for tuberculosis wards according to the present invention;

[0034] Figure 8 The nebulizer assembly structure of the nebulizer with negative pressure collection function for tuberculosis wards of this invention was exploded. Figure 1 ;

[0035] Figure 9 The nebulizer assembly structure of the nebulizer with negative pressure collection function for tuberculosis wards of this invention was exploded. Figure 2 ;

[0036] Figure 10This is a cross-sectional view of the airflow regulation component of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention;

[0037] Figure 11 Cross-sectional view of the first and second connecting pipes of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention. Figure 1 ;

[0038] Figure 12 This is an exploded view of the airflow regulation component of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention.

[0039] Figure 13 Cross-sectional view of the first and second connecting pipes of the nebulized respirator for tuberculosis wards with negative pressure collection function according to the present invention. Figure 2 .

[0040] In the diagram: 101, breathing mask; 102, sealing strip; 2, air pressure sensor; 301, nebulizer cup; 302, storage tube; 303, temporary storage tube; 304, connecting piece; 305, connecting hole; 306, elastic bladder; 307, mist outlet tube; 308, limiting ring; 309, limiting groove; 401, fixing shell; 402, first electromagnet; 403, mounting plate; 404, first magnet block; 405, return spring; 5, connecting tube; 6, exhaust tube; 7, negative pressure tube; 801. Guide ring; 802. Connecting block; 803. Flow guide head; 804. Sealing plate; 805. Connecting strip; 806. Fixing cover; 807. Airbag; 808. Pad; 809. Drive strip; 901. Adjusting housing; 902. First connecting pipe; 903. Second connecting pipe; 904. Third connecting pipe; 905. Air outlet; 906. Sealing ring; 907. Elastic tube; 908. First fixing pipe; 909. Second fixing pipe; 910. Fourth connecting pipe; 911. Movable ring; 912. Second magnet block; 913. Corrugated pipe; 914. Second electromagnet; 915. Guide block; 916. Guide groove; 10. Air supply pipe; 11. Air pump; 12. Flow guide pipe. Detailed Implementation

[0041] 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 some embodiments of the present invention, and not all embodiments. 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.

[0042] Please see Figure 1-13 This invention provides a technical solution: a nebulized respirator for tuberculosis wards with negative pressure collection function, comprising:

[0043] The mask assembly includes a breathing mask 101 and a sealing strip 102. The breathing mask 101 is equipped with a pressure sensor 2 for detecting changes in air pressure. The pressure sensor 2 is a medical miniature piezoresistive pressure sensor, specifically the Sensirion SDP810-500Pa model. The sealing strip 102 is fixedly installed on the breathing mask 101 at the position where it contacts the user's skin. The sealing strip 102 is made of medical food-grade liquid silicone. The user wears the breathing mask 101, ensuring that the sealing strip 102 fits tightly against the user's face, so that the breathing mask 101 fits comfortably against the user's skin.

[0044] A nebulizer assembly connected to the mask assembly is used to intermittently deliver nebulized medication into the breathing mask 101, so that the breathing mask 101 is filled with nebulized liquid and maintains positive pressure during inhalation. The nebulizer assembly includes a nebulizer cup 301, and a storage tube 302 is movably inserted into the top output end of the nebulizer cup 301. The storage tube 302 is a tubular structure with a closed top and an open bottom. Temporary storage tubes 303 are rotatably connected to the top and bottom of the storage tube 302, respectively. Multiple connecting pieces 304 are fixedly installed at one end of the two opposite sides of the two temporary storage tubes 303. Elastic capsules 306 are fixedly installed on the inner walls of the two temporary storage tubes 303 and the top of the top temporary storage tube 303, respectively. The elastic capsules 306 are made of medical-grade drug-resistant silicone rubber with elastic material. The elastic capsules 306 and the temporary storage tubes 303 are also fixedly installed. The interiors of the storage tube 302 and the atomizing cup 301 are connected. Multiple mist outlet tubes 307 are fixedly embedded on the surface of the storage tube 302, and the interiors of the mist outlet tubes 307 are connected to the interior of the storage tube 302. A connecting hole 305 is opened on the side wall of the temporary storage tube 303 corresponding to the position of the mist outlet tube 307, and the interior of the temporary storage tube 303 is connected to the interior of the mist outlet tube 307 through the connecting hole 305. The mist outlet tube 307 is fixedly embedded in the middle of the breathing mask 101. A limiting ring 308 is fixedly installed on the surface of the temporary storage tube 303, and a limiting groove 309 is opened on the inner wall of the storage tube 302 corresponding to the position of the limiting ring 308. The limiting ring 308 is rotatably connected to the inner wall of the limiting groove 309 so that the temporary storage tube 303 is positioned by the limiting ring 308 cooperating with the limiting groove 309.

[0045] In use, oxygen passes through the nebulizer cup 301 and disperses the liquid medication inside. Simultaneously, the oxygen carries the nebulized liquid medication into the storage tube 302, and then through the temporary storage tube 303, the connecting hole 305, and the mist outlet tube 307 into the breathing mask 101. When the connecting hole 305 and the mist outlet tube 307 are not connected, the oxygen passing through the nebulizer cup 301 can still disperse the nebulized liquid medication inside the nebulizer cup 301, allowing the oxygen to carry the nebulized liquid medication into the storage tube 302. Because the connecting hole 305 and the mist outlet tube 307 are staggered, i.e., the connecting hole 305 and the mist outlet tube 307 are not connected, the nebulized gas inside the storage tube 302 cannot temporarily enter the mist outlet tube 307. At this time, the nebulized gas will exist inside the temporary storage tube 303 and the elastic bladder 306, causing the elastic bladder 306 to expand for temporary storage of the nebulized gas.

[0046] The surface of the storage tube 302 is provided with an atomization control component. The atomization control component includes a fixed shell 401 fixedly embedded in the middle of the storage tube 302. A first electromagnet 402 is fixedly embedded at both ends of the fixed shell 401. The first electromagnet 402 is a miniature DC electromagnet, model DC12V. A mounting plate 403 is fixedly installed on the surface of one of the connecting pieces 304. A first magnet block 404 is fixedly embedded in the middle of the mounting plate 403. The first magnet block 404 is a neodymium iron boron permanent magnet with a nickel-copper-nickel anti-rust coating on the surface. A reset spring 405 is fixedly installed at both ends of the mounting plate 403, and the reset spring 405 is fixedly installed on the inner wall of the fixed shell 401.

[0047] When the above structure is in use, the first electromagnet 402 is energized, which drives the first magnet block 404 to move. The first magnet block 404 drives the connecting piece 304 to rotate through the mounting plate 403, and squeezes the return spring 405. When the connecting piece 304 rotates, it drives the temporary storage tube 303 to rotate. When the temporary storage tube 303 drives the connecting hole 305 to intersect with the mist outlet tube 307, the inside of the storage tube 302 is no longer connected to the inside of the mist outlet tube 307. That is, the connecting tube 5 no longer supplies oxygen to the inside of the breathing mask 101. Conversely, when the connecting hole 305 coincides with the mist outlet tube 307, the inside of the storage tube 302 is connected to the inside of the mist outlet tube 307. At this time, oxygen carrying the nebulized medicine enters the inside of the breathing mask 101 through the temporary storage tube 303, the connecting hole 305, and the mist outlet tube 307.

[0048] Connecting pipe 5 for supplying gas into the atomizing assembly;

[0049] An exhaust pipe 6 is fixedly installed at the bottom of the breathing mask 101, and a negative pressure pipe 7 is threaded at the bottom of the exhaust pipe 6. A pressure-adjustable one-way valve assembly is provided on the inner wall of one end of the negative pressure pipe 7 corresponding to the position of the exhaust pipe 6. An air supply pipe 10 is fixedly installed at one end of the middle of the negative pressure pipe 7, and the gas supplied in the air supply pipe 10 flows away from the pressure-adjustable one-way valve assembly inside the negative pressure pipe 7, so that the pressure-adjustable one-way valve assembly is located in a low-pressure zone. The pressure-adjustable one-way valve assembly includes components fixedly installed on the negative pressure pipe 7 corresponding to the position of the exhaust pipe 6. A guide ring 801 is fixedly installed on the inner wall of one end of the exhaust pipe at position 6. A connecting block 802 is fixedly installed on the inner wall of the guide ring 801. A guide head 803 is fixedly installed in the middle of the connecting block 802. A sealing plate 804 is fixedly installed on the surface of the guide head 803. The sealing plate 804 is made of medical fluororubber, an elastic material. The sealing plate 804 is tightly fitted with the guide ring 801. At the end of the sealing plate 804 away from the guide head 803, multiple connecting strips 805 arranged in a ring are fixedly installed. The guide head 803 is away from the exhaust pipe. A fixing cover 806 is fixedly installed at one end of the tube 6. An airbag 807 is fixedly installed at the other end of the fixing cover 806 away from the guide head 803. The airbag 807 is a medical ultra-thin silicone rubber membrane made of elastic material. The interior of the airbag 807 is connected to the interior of the fixing cover 806, and the air pressure inside the airbag 807 and the fixing cover 806 is at standard air pressure. Both the fixing cover 806 and the guide head 803 are conical structures. A pad 808 is fixedly installed on the surface of the airbag 807. A drive bar 809 is installed, which is fixedly installed at the end of the connecting bar 805 away from the center of the sealing plate 804. The drive bar 809 is attached to the surface of the airbag 807. The center thickness of the sealing plate 804 is greater than the edge thickness. A guide pipe 12 is fixedly installed in the middle of the negative pressure pipe 7, and the air supply pipe 10 is movably inserted into the inner wall of the guide pipe 12. The guide pipe 12 is a 90° bend so that the airflow in the air supply pipe 10 flows in the middle of the negative pressure pipe 7 along the direction away from the end of the negative pressure pipe 7 from the exhaust pipe 6.

[0050] In use, the air pump 11 injects air into the air supply pipe 10, and under the guidance of the guide pipe 12, the airflow flows along the end of the negative pressure pipe 7 away from the exhaust pipe 6. Due to Bernoulli's principle, as the gas velocity from the guide pipe 12 increases and the direction of flow is towards the end of the negative pressure pipe 7 away from the exhaust pipe 6, the air pressure in the region from the guide pipe 12 to the exhaust pipe 6 decreases significantly, forming a low-pressure zone. The pressure-adjustable one-way valve assembly is located in this low-pressure zone. Since the air pressure inside the airbag 807 and the fixed cover 806 in the low-pressure zone is the standard air pressure, this causes the air pressure in the low-pressure zone to decrease further. If the pressure is low, the airbag 807 will inflate, causing the airbag 807 to pull the connecting strip 805 through the drive strip 809. This causes the connecting strip 805 to lift the edge of the sealing plate 804, moving the edge of the sealing plate 804 away from the guide ring 801. At this time, the exhaust pipe 6 and the negative pressure pipe 7 form a fluid channel. Under the action of the pressure adjustable one-way valve assembly, the exhaust pipe 6 and the negative pressure pipe 7 form a one-way fluid channel. At this time, the exhaust gas inside the breathing mask 101 will pass through the exhaust pipe 6 and the pressure adjustable one-way valve assembly into the interior of the negative pressure pipe 7. The negative pressure pipe 7 is connected to the exhaust gas purification end, so that the exhaust gas exhaled by the user is collected and treated by the exhaust gas purification end.

[0051] Both the air supply pipe 10 and the connecting pipe 5 are equipped with airflow regulating components in their middle sections for adjusting the gas flow rate within the air supply pipe 10 and the connecting pipe 5. These airflow regulating components are used to:

[0052] During inhalation, adjust connecting tube 5 to maintain maximum flow rate and adjust air delivery tube 10 to maintain minimum flow rate;

[0053] During exhalation, adjust the connecting tube 5 to maintain the minimum flow rate initially and the maximum flow rate at the end of exhalation; adjust the air delivery tube 10 to maintain the maximum flow rate initially and the minimum flow rate at the end of exhalation.

[0054] An air pump 11 is fixedly installed at one end of the air supply pipe 10, and the connecting pipe 5 is connected to the ward nebulizer gas source interface.

[0055] The airflow regulating assembly includes a regulating housing 901, which is fixedly installed in the middle of the connecting pipe 5 and the air supply pipe 10. A first connecting pipe 902 is fixedly installed in the middle of both the connecting pipe 5 and the air supply pipe 10, corresponding to the position of the regulating housing 901. A sealing ring 906 is fixedly installed on the inner wall of the first connecting pipe 902 in the direction of the gas source, and a second connecting pipe 903 is fixedly installed on the inner wall of the sealing ring 906. One end of the second connecting pipe 903 in the direction of gas flow is closed. Multiple third connecting pipes 904 are fixedly installed on the side walls of both the first and second connecting pipes 902 and 903. Multiple air outlets 905 are provided on the side wall of the first connecting pipe 902 to ensure that the gas flow direction inside the regulating housing 901 is as follows:

[0056] First, it enters the interior of the second connecting pipe 903 from one open end, then is discharged outward through multiple third connecting pipes 904, then enters the position between the first connecting pipe 902 and the second connecting pipe 903 through the vent 905, and finally flows out through the end of the first connecting pipe 902 away from the sealing ring 906.

[0057] The inner walls of the adjusting housing 901 corresponding to the connecting pipe 5 and the air supply pipe 10 are respectively fixedly installed with elastic tubes 907 and first fixed tubes 908. The second connecting pipe 903, first connecting pipe 902, elastic tube 907, and first fixed tube 908 are arranged sequentially from the inside out. The elastic tube 907 is a component made of elastic material. A second fixed tube 909 is fixedly installed in the middle of the inner wall of the adjusting housing 901. A fourth connecting tube 910 is fixedly embedded at different ends of the side walls of the two first fixed tubes 908 corresponding to the second fixed tube 909. The fourth connecting tube 910 is fixedly embedded in the side wall of the second fixed tube 909, so that the two first fixed tubes 908 corresponding to the connecting pipe 5 and the air supply pipe 10 are connected to both ends of the second fixed tube 909 through the fourth connecting tube 910. A movable ring 911 is movably connected to the inner wall of the second fixed tube 909. A second connecting ring 911 is fixedly installed on the inner wall of the movable ring 911. Both ends of the magnet block 912 and the movable ring 911 are respectively fixedly installed with bellows 913, and the bellows 913 are fixedly installed on the inner wall of the second fixed tube 909, so that the bellows 913, together with the movable ring 911 and the second magnet block 912, divide the interior of the second fixed tube 909 into two non-communicating cavities. Two second electromagnets 914 are fixedly installed on the inner wall of the adjusting housing 901 corresponding to the position of the second fixed tube 909, so that the two second electromagnets 914 cooperate to drive the second magnet block 912 to move the movable ring 911 along the direction of the second fixed tube 909. A guide block 915 is fixedly installed on the surface of the movable ring 911. A guide groove 916 is opened on the side wall of the second fixed tube 909 corresponding to the position of the guide block 915, and the guide block 915 is movably connected to the inner wall of the guide groove 916, so that the guide block 915 and the guide groove 916 guide the movement of the movable ring 911.

[0058] In use, the above structure adjusts the second electromagnets 914 at both ends of the inner wall of the housing 901 to drive the second magnet block 912 to move left and right on the inner wall of the second fixed tube 909. This causes the second magnet block 912 to compress or stretch the bellows 913 through the movable ring 911. When the bellows 913 is compressed, the gas inside the bellows 913 enters the corresponding first fixed tube 908 through the corresponding fourth connecting tube 910. This causes the gas to squeeze the elastic tube 907 inside the first fixed tube 908, and the elastic tube 907 to adhere to the surface of the first connecting tube 902 and block the vent 905. The greater the degree of compression of the bellows 913, the more vent 905s are blocked on the surface of the first connecting tube 902, and the slower the gas passes through the adjustment housing 901 at this point.

[0059] Conversely, when the bellows 913 is stretched, the gas inside the elastic tube 907 and the first fixed tube 908 will be drawn into the bellows 913 through the fourth connecting tube 910. Under the action of the elastic force of the elastic tube 907 itself, the elastic tube 907 will move away from the surface of the first connecting tube 902. At this time, all the vent holes 905 are not blocked, and the speed at which the gas passes through the regulating housing 901 is accelerated.

[0060] Working principle: In use, the core working principle of this invention is that the pressure sensor 2 accurately identifies the breathing phase, and links the nebulization component, airflow regulation component, and pressure adjustable one-way valve component to achieve coordinated control of nebulized drug delivery, negative pressure collection, and respiratory assistance, as detailed below:

[0061] First, connect the connecting tube 5 to the nebulizer gas source interface of the tuberculosis ward, and at the same time connect the air delivery tube 10 to the air pump 11. Add the nebulizer treatment liquid into the nebulizer cup 301. Then, the user wears the breathing mask 101 and makes the sealing strip 102 fit tightly against the user's face to ensure the airtightness of the mask, providing a basis for the subsequent formation of positive or negative pressure.

[0062] During nebulization therapy, oxygen is injected into the connecting tube 5 through the nebulization gas source interface in the ward, and the oxygen passes through the nebulization cup 301, dispersing and nebulizing the therapeutic liquid inside the nebulization cup 301. This allows the oxygen to carry the nebulized liquid into the storage tube 302, and then into the outlet tube 307 through the connecting hole 305 inside the temporary storage tube 303. Finally, the outlet tube 307 is provided to the breathing mask 101 for the user to absorb.

[0063] During negative pressure waste gas collection, the air pump 11 injects air into the air supply pipe 10, and under the guidance of the guide pipe 12, the airflow flows along the end of the negative pressure pipe 7 away from the exhaust pipe 6. Due to Bernoulli's principle, as the gas flow velocity from the guide pipe 12 increases and the direction of flow is towards the end of the negative pressure pipe 7 away from the exhaust pipe 6, the air pressure in the area from the guide pipe 12 to the exhaust pipe 6 will decrease significantly, forming a low-pressure zone. The pressure-adjustable one-way valve assembly is located in this low-pressure zone. Because the airbag 807 and the fixed cover 806 are located in the low-pressure zone... The air pressure is the standard air pressure, which means that the lower the air pressure in the low-pressure area, the more the airbag 807 will inflate. This causes the airbag 807 to pull the connecting strip 805 through the drive strip 809, which in turn causes the connecting strip 805 to lift the edge of the sealing plate 804, making the edge of the sealing plate 804 move away from the guide ring 801. At this time, the exhaust pipe 6 and the negative pressure pipe 7 form a fluid channel. Under the action of the pressure adjustable one-way valve assembly, the exhaust pipe 6 and the negative pressure pipe 7 form a one-way fluid channel. At this time, the exhaust gas inside the breathing mask 101 will pass through the exhaust pipe 6 and the pressure adjustable one-way valve assembly to enter the interior of the negative pressure pipe 7.

[0064] The pressure sensor 2 is set to detect the change in air pressure inside the breathing mask 101. The initial air pressure change is the user's breathing rate. That is, when the breathing mask 101 is not nebulized, the negative pressure inside the breathing mask 101 indicates inhalation and the positive pressure indicates exhalation. However, when using nebulization, the breathing mask 101 needs to be positive when inhaling and negative pressure first followed by positive pressure when exhaling.

[0065] When the airflow regulating component is in use, the second electromagnets 914 at both ends of the inner wall of the housing 901 drive the second magnet block 912 to move left and right on the inner wall of the second fixed tube 909. This causes the second magnet block 912 to compress or stretch the bellows 913 through the movable ring 911. When the bellows 913 is compressed, the gas inside the bellows 913 enters the corresponding first fixed tube 908 through the corresponding fourth connecting tube 910. This causes the gas to squeeze the elastic tube 907 inside the first fixed tube 908, and the elastic tube 907 to adhere to the surface of the first connecting tube 902 and block the air outlet 905. The greater the degree of compression of the bellows 913, the more air outlets 905 are blocked on the surface of the first connecting tube 902, and the slower the gas passes through the regulating housing 901 at this point.

[0066] Conversely, when the bellows 913 is stretched, the gas inside the elastic tube 907 and the first fixed tube 908 will be drawn into the bellows 913 through the fourth connecting tube 910. Under the action of the elastic force of the elastic tube 907 itself, the elastic tube 907 will move away from the surface of the first connecting tube 902. At this time, all the vents 905 are not blocked, and the speed at which the gas passes through the regulating housing 901 is accelerated.

[0067] Specifically during the treatment process:

[0068] During inhalation: The airflow regulating component does not obstruct the gas flow rate of the connecting tube 5. At the same time, the airflow regulating component reduces the gas flow rate of the air delivery tube 10. The oxygen in the connecting tube 5 passes through the nebulizer cup 301 and disperses the liquid medicine inside. At the same time, the oxygen carries the nebulized liquid medicine into the storage tube 302 and enters the breathing mask 101 through the temporary storage tube 303, the connecting hole 305, and the mist outlet tube 307. Meanwhile, the gas in the air delivery tube 10 enters the negative pressure tube 7 through the guide tube 12. At this time, the gas flow rate inside the air delivery tube 10 is relatively slow and will not cause deformation to the pressure adjustable one-way valve assembly, that is, the pressure adjustable one-way valve assembly will not be opened. At this time, the slow airflow is mainly to keep the gas in the negative pressure tube 7 unobstructed and dry.

[0069] At the end of inhalation: the first electromagnet 402 is energized, which drives the first magnet block 404 to move, and the first magnet block 404 drives the connecting piece 304 to rotate through the mounting plate 403, and squeezes the reset spring 405. When the connecting piece 304 rotates, it drives the temporary storage tube 303 to rotate, and the temporary storage tube 303 drives the connecting hole 305 to intersect with the mist outlet tube 307. At this time, the inside of the storage tube 302 is no longer connected to the inside of the mist outlet tube 307, that is, the connecting tube 5 no longer supplies oxygen to the inside of the breathing mask 101.

[0070] During exhalation: The airflow regulating component reduces the gas flow rate of the connecting tube 5, while not obstructing the gas flow rate of the delivery tube 10. After the flow rate of the connecting tube 5 is reduced, the oxygen inside the connecting tube 5 can still disperse the atomized medicine inside the atomizing cup 301 when it passes through the atomizing cup 301, allowing the oxygen to carry the atomized medicine into the storage tube 302. Because the connecting hole 305 and the mist outlet tube 307 are staggered, the atomized gas inside the storage tube 302 cannot enter the mist outlet tube 307 temporarily. At this time, the atomized gas... The gas will be stored inside the temporary storage tube 303 and the elastic bladder 306, and will cause the elastic bladder 306 to expand, which is used to temporarily store the atomized gas. The gas flow rate inside the air delivery tube 10 will increase, and through the guide tube 12, a low-pressure area will be formed at the position of the pressure adjustable one-way valve assembly. This will prevent the pressure adjustable one-way valve assembly from obstructing the connection between the exhaust pipe 6 and the negative pressure pipe 7, and will allow the exhaust gas inside the breathing mask 101 to be discharged to the outside through the exhaust pipe 6 and the negative pressure pipe 7. The negative pressure pipe 7 is connected to the exhaust gas purification end and is used to purify the exhaust gas exhaled by the user.

[0071] At the end of exhalation: the first electromagnet 402 is de-energized, and the mounting plate 403 returns to its initial state under the action of the reset spring 405. This causes the mounting plate 403 to drive the connecting hole 305 to align with the mist outlet tube 307 through the connecting piece 304 and the temporary storage tube 303. This allows the atomized gas inside the temporary storage tube 303 and the elastic bladder 306 to quickly enter the breathing mask 101 through the connecting hole 305 and the mist outlet tube 307 under the action of the elastic bladder 306 resetting and contracting. This provides positive pressure at the end of the user's exhalation to prevent early closure of the alveoli. At the same time, the airflow regulating component does not obstruct the gas flow rate of the connecting tube 5, and the airflow regulating component reduces the gas flow rate of the air delivery tube 10, so that the gas inside the breathing mask 101 is no longer collected under negative pressure at the end of the exhalation.

[0072] This invention creatively achieves precise switching between negative pressure collection during the expiratory phase and positive pressure support at the end of the expiratory phase. By using an airflow regulation component to control the flow rate of the air delivery tube 10 in stages, and in conjunction with Bernoulli's principle to form a dynamic low-pressure zone at the pressure-adjustable one-way valve component, it not only achieves efficient negative pressure collection and subsequent disinfection of exhaust gas in the breathing mask 101 during the early expiratory phase, thus avoiding cross-infection of tuberculosis droplets at the source, but also rapidly reduces the flow rate of the air delivery tube 10 at the end of the expiratory phase, terminating negative pressure collection and forming a positive pressure environment. This mechanically prevents early alveolar closure and fills the technical deficiency of existing nebulizers that maintain negative pressure throughout the entire process.

[0073] By setting up the air pressure sensor 2, the treatment can be assisted for the user. In the middle and late stages of tuberculosis, Mycobacterium tuberculosis invades the lung tissue, forming nodules, cavities or fibrosis, which leads to a reduction in the lung's gas exchange area and a decrease in oxygen diffusion function. Patients are prone to inhalation and exhalation weakness, manifested as shallow and rapid breathing and shortness of breath after activity. The air pressure sensor 2 initially detects the patient's exhalation. According to the patient's condition, the airflow regulation component and the nebulization control component are used to adjust the connecting tube 5 and the air delivery tube 10, which slowly changes the breathing rhythm. During the inhalation phase, the breathing mask 101 is kept under positive pressure to help expand the airway, support the alveoli to open, reduce inhalation resistance, and help the patient complete effective inhalation. During the exhalation phase, the breathing mask 101 is kept under negative pressure in the early stage to help expel residual gas in the alveoli and reduce gas retention caused by exhalation weakness. At the end of the exhalation, positive pressure is maintained to prevent early alveolar closure, thereby achieving the purpose of assisting the patient's breathing.

[0074] This invention breaks through the limitations of existing technologies that only achieve the single function of waste gas collection. It pioneers a collaborative control system for intelligent adaptation of respiratory rhythm and nebulized drug delivery based on data driven by a pressure sensor 2. The pressure sensor 2 accurately identifies the individual respiratory phase and intensity of tuberculosis patients, and links the airflow adjustment component and the nebulization control component to achieve dynamic adjustment of the flow rate of the connecting tube 5 and the air delivery tube 10, and intermittent delivery of nebulized drugs. Targeting the pathological characteristics of tuberculosis patients such as insufficient inspiration, weak expiration, and gas retention caused by lung tissue damage, it achieves full-process respiratory assistance, including positive pressure dilation of the airway during inspiration, negative pressure expulsion of residual gas in the early expiration phase, and positive pressure support of the alveoli at the end of expiration. It deeply integrates tuberculosis waste gas control with respiratory physiological auxiliary treatment, achieving a clinical effect of 1+1>2, and significantly improving the suitability and effectiveness of nebulized therapy for tuberculosis patients.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nebulized respirator for tuberculosis wards with negative pressure collection function, characterized in that: include: A mask assembly comprising a breathing mask (101) and a sealing strip (102), wherein the breathing mask (101) is provided with a pressure sensor (2) for detecting changes in air pressure. A nebulizing assembly connected to the mask assembly is used to intermittently deliver nebulized medication into the breathing mask (101) so that the breathing mask (101) is filled with nebulized liquid and maintains positive pressure during inhalation; (5) is a connecting pipe used to deliver gas into the atomizing component. The bottom of the breathing mask (101) is fixedly connected to an exhaust pipe (6), and the bottom of the exhaust pipe (6) is threaded with a negative pressure pipe (7). The inner wall of the negative pressure pipe (7) at one end corresponding to the position of the exhaust pipe (6) is provided with a pressure adjustable one-way valve assembly. One end of the middle of the negative pressure pipe (7) is fixedly provided with an air supply pipe (10), and the gas transported in the air supply pipe (10) flows away from the pressure adjustable one-way valve assembly inside the negative pressure pipe (7) so that the pressure adjustable one-way valve assembly is located in a low-pressure area. Both the gas supply pipe (10) and the connecting pipe (5) are provided with airflow regulating components in the middle for adjusting the gas flow rate within the gas supply pipe (10) and the connecting pipe (5). The airflow regulating components are used to: During inhalation, adjust the connecting tube (5) to maintain the maximum flow rate and adjust the air delivery tube (10) to maintain the minimum flow rate; During exhalation, adjust the connecting tube (5) to maintain the minimum flow rate first, and maintain the maximum flow rate at the end of exhalation. Adjust the air delivery tube (10) to maintain the maximum flow rate first, and maintain the minimum flow rate at the end of exhalation.

2. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 1, characterized in that: The sealing strip (102) is fixedly connected to the breathing mask (101) at the position where it fits the user's skin, and the sealing strip (102) is a silicone material component so that the breathing mask (101) fits comfortably against the user's skin. One end of the air delivery tube (10) is fixedly connected to an air pump (11), and the connecting tube (5) is connected to the ward nebulizer air source interface.

3. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 2, characterized in that: The atomizing component includes an atomizing cup (301), and a storage tube (302) is movably inserted into the top output end of the atomizing cup (301). The storage tube (302) is a tubular structure with a closed top and an open bottom. Temporary storage tubes (303) are rotatably connected to the top and bottom of the storage tube (302). Multiple connecting pieces (304) are fixedly connected to one end of the opposite face of the two temporary storage tubes (303). An elastic capsule (306) is fixedly connected to the inner wall of the two temporary storage tubes (303) and the top of the top temporary storage tube (303). The elastic capsule (306) is an elastic material component, and the interiors of the elastic capsule (306), the temporary storage tube (303), the storage tube (302), and the atomizing cup (301) are all interconnected.

4. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 3, characterized in that: Multiple mist outlet tubes (307) are fixedly embedded on the surface of the storage tube (302), and the interior of the mist outlet tubes (307) is connected to the interior of the storage tube (302). A connecting hole (305) is opened on the side wall of the temporary storage tube (303) corresponding to the position of the mist outlet tube (307), and the interior of the temporary storage tube (303) is connected to the interior of the mist outlet tube (307) through the connecting hole (305). The mist outlet tube (307) is fixedly embedded in the middle of the breathing mask (101).

5. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 4, characterized in that: The surface of the temporary storage tube (303) is fixedly connected to a limiting ring (308), and a limiting groove (309) is opened on the inner wall of the storage tube (302) corresponding to the position of the limiting ring (308). The limiting ring (308) is rotatably connected to the inner wall of the limiting groove (309) so that the temporary storage tube (303) can be positioned by the limiting ring (308) cooperating with the limiting groove (309).

6. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 5, characterized in that: The surface of the storage tube (302) is provided with an atomization control component. The atomization control component includes a fixed shell (401) fixedly embedded in the middle of the storage tube (302). A first electromagnet (402) is fixedly embedded at both ends of the fixed shell (401). A mounting plate (403) is fixedly connected to the surface of one of the connecting pieces (304). A first magnet block (404) is fixedly embedded in the middle of the mounting plate (403). A reset spring (405) is fixedly connected to both ends of the mounting plate (403), and the reset spring (405) is fixedly connected to the inner wall of the fixed shell (401).

7. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 6, characterized in that: The pressure-adjustable one-way valve assembly includes a guide ring (801) fixedly connected to the inner wall of one end of the negative pressure pipe (7) corresponding to the exhaust pipe (6). A connecting block (802) is fixedly connected to the inner wall of the guide ring (801). A flow guide head (803) is fixedly connected to the middle of the connecting block (802). A sealing plate (804) is fixedly connected to the surface of the flow guide head (803). The sealing plate (804) is an elastic material component. The sealing plate (804) and the guide... The ring (801) fits tightly, and the end of the sealing plate (804) away from the guide head (803) is fixedly connected with multiple ring-shaped connecting strips (805). The end of the guide head (803) away from the exhaust pipe (6) is fixedly connected with a fixing cover (806). The end of the fixing cover (806) away from the guide head (803) is fixedly connected with an airbag (807). The airbag (807) is an elastic material component. The airbag (807) is internally connected to the interior of the fixed cover (806), and the air pressure inside the airbag (807) and the fixed cover (806) is the standard air pressure. The fixed cover (806) and the guide head (803) are both conical structures. A pad (808) is fixedly connected to the surface of the airbag (807), and a drive strip (809) is fixedly connected to the surface of the pad (808). The drive strip (809) is fixedly connected to the connecting strip (805) at a position away from the center of the sealing plate (804). One end of the airbag (807) is attached to the surface of the airbag (807), and the center thickness of the sealing plate (804) is greater than the edge thickness. The middle part of the negative pressure pipe (7) is fixedly connected to the guide pipe (12), and the air delivery pipe (10) is movably inserted into the inner wall of the guide pipe (12). The guide pipe (12) is a 90° bend so that the airflow in the air delivery pipe (10) flows in the middle of the negative pressure pipe (7) along the direction away from the end of the negative pressure pipe (7) from the exhaust pipe (6).

8. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 7, characterized in that: The airflow regulating assembly includes a regulating housing (901), which is fixedly connected to the middle of the connecting pipe (5) and the air supply pipe (10). A first connecting pipe (902) is fixedly connected to the middle of both the connecting pipe (5) and the air supply pipe (10) corresponding to the position of the regulating housing (901). A sealing ring (906) is fixedly connected to the inner wall of the first connecting pipe (902) corresponding to the gas source direction, and a second connecting pipe (903) is fixedly connected to the inner wall of the sealing ring (906). One end of the second connecting pipe (903) corresponding to the gas flow direction is a closed structure. Multiple third connecting pipes (904) are fixedly connected to the side walls of both the first connecting pipe (902) and the second connecting pipe (903). Multiple air outlets (905) are opened on the side wall of the first connecting pipe (902) so that the gas flow direction inside the regulating housing (901) is: First, it enters the interior of the second connecting pipe (903) from one end of the opening, then exits outward through multiple third connecting pipes (904), then enters the position between the first connecting pipe (902) and the second connecting pipe (903) through the vent (905), and finally flows out through the end of the first connecting pipe (902) away from the sealing ring (906).

9. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 8, characterized in that: The inner walls of the adjusting housing (901) corresponding to the connecting pipe (5) and the air supply pipe (10) are respectively fixedly connected with elastic tubes (907) and first fixed tubes (908). The second connecting pipe (903), the first connecting pipe (902), the elastic tube (907) and the first fixed tube (908) are arranged sequentially from the inside to the outside. The elastic tube (907) is an elastic material component. The middle part of the inner wall of the adjusting housing (901) is fixedly connected with a second fixed tube (909). The different ends of the side walls of the two first fixed tubes (908) corresponding to the positions of the second fixed tubes (909) are respectively fixedly embedded with fourth connecting tubes (910), and the fourth connecting tubes (910) are fixedly embedded in the side walls of the second fixed tubes (909), so that the two first fixed tubes (908) corresponding to the connecting pipe (5) and the air supply pipe (10) respectively pass through the fourth connecting tubes (910) respectively. The two ends of the second fixed tube (909) are connected to each other. The inner wall of the second fixed tube (909) is movably connected to a movable ring (911). The inner wall of the movable ring (911) is fixedly connected to a second magnet (912). Both ends of the movable ring (911) are respectively fixedly connected to a bellows (913). The bellows (913) is fixedly connected to the inner wall of the second fixed tube (909) so that the bellows (913) cooperates with the movable ring (911) and the second magnet (912) to divide the interior of the second fixed tube (909) into two non-communicating cavities. The inner wall of the adjusting housing (901) corresponding to the position of the second fixed tube (909) is fixedly connected to two second electromagnets (914) so ​​that the two second electromagnets (914) cooperate to drive the second magnet (912) to drive the movable ring (911) to move along the direction of the second fixed tube (909).

10. The nebulized respirator for tuberculosis wards with negative pressure collection function according to claim 9, characterized in that: A guide block (915) is fixedly connected to the surface of the movable ring (911). The second fixed tube (909) has a guide groove (916) on its side wall corresponding to the position of the guide block (915). The guide block (915) is movably connected to the inner wall of the guide groove (916) so that the guide block (915) cooperates with the guide groove (916) to guide the movement of the movable ring (911).

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