An atomizing respiratory drug delivery device suitable for the elderly

Abstract

The application relates to the technical field of medical devices and discloses an old-age suitable atomization breathing drug delivery device, which comprises an atomization main body and a breathing assembly in communication with the atomization main body; the atomization main body comprises a shell, an atomization generation module, an oxygen supply adjusting module, an intelligent mixing module and a control module; the control module is electrically connected with the atomization generation module, the oxygen supply adjusting module and the intelligent mixing module; the breathing assembly comprises an oxygen mist conveying channel connected with the atomization main body; a breathing mask is arranged at the end of the oxygen mist conveying channel away from the atomization main body; a self-closing valve group is arranged at the joint of the oxygen mist conveying channel and the atomization main body; the breathing mask comprises a supporting frame, a flexible adhesion layer and a self-adaptive adjusting assembly; and the self-adaptive adjusting assembly is arranged between the supporting frame and the flexible adhesion layer. The device realizes the integration of oxygen supply and atomization drug delivery through the cooperation of multiple modules; the breathing mask improves the adhesion degree and reduces drug mist leakage; the oxygen mist mixing ratio and conveying flow rate can be accurately controlled, and the atomization effect is optimized.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an age-appropriate nebulized respiratory drug delivery device. Background Technology

[0002] Nebulized inhalation drug delivery is an important clinical treatment for respiratory diseases, especially suitable for the elderly who, due to declining physiological function, experience poor absorption and tolerance to oral and injectable medications. It has become the mainstream drug delivery method for diseases such as chronic bronchitis, asthma, and COPD in the elderly. However, most existing nebulized inhalation drug delivery devices are of general-purpose design and do not fully consider the physiological characteristics (such as facial muscle relaxation, slow and shallow breathing rate, and weak limb mobility) and usage needs of the elderly.

[0003] Existing nebulizer masks are mostly of fixed size and have poor flexibility and fit. Elderly patients have large differences in facial contours and loose facial skin, which can easily lead to poor mask fit, resulting in drug mist leakage and reduced drug delivery efficiency. In the current technology, the oxygen supply device and the nebulizer drug delivery device are independent devices without integrated design. When elderly patients with respiratory diseases receive combined oxygen therapy and nebulizer drug delivery, two sets of devices and two sets of tubing need to be operated separately, which is cumbersome. Because oxygen supply and nebulizer drug delivery are separated, there is no dedicated intelligent mixing module to achieve precise fusion of drug mist and oxygen. In clinical practice, the drug mist and oxygen are often mixed naturally by simply splicing tubing, resulting in extremely poor mixing uniformity. Moreover, it is impossible to accurately adjust the input ratio of drug mist and oxygen according to the elderly patient's respiratory status and blood oxygen level, which can easily lead to problems such as excessively high or low oxygen concentration and excessive drug mist dilution. Summary of the Invention

[0004] In view of the above-mentioned shortcomings in the prior art, the present invention provides an age-friendly nebulized respiratory drug delivery device that solves the problems of poor fit and droplet leakage caused by the lack of optimization of the nebulized mask for the physiological characteristics of the elderly, as well as the lack of coordinated design between oxygen supply and nebulized drug delivery and the increased burden on the elderly due to the double wearing.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows: an age-appropriate nebulized respiratory drug delivery device, comprising a nebulizing body and a respiratory component connected to the nebulizing body;

[0006] The atomizing body includes a shell, an atomizing module, an oxygen supply regulation module, an intelligent mixing module, and a control module. The control module is electrically connected to the atomizing module, the oxygen supply regulation module, and the intelligent mixing module, respectively.

[0007] The breathing assembly includes an oxygen mist delivery channel connected to the nebulizer body. A breathing mask is installed at the end of the oxygen mist delivery channel away from the nebulizer body. A self-closing valve assembly is installed at the connection between the oxygen mist delivery channel and the nebulizer body. The breathing mask includes a support frame, a flexible fitting layer, and an adaptive adjustment assembly. The adaptive adjustment assembly is located between the support frame and the flexible fitting layer. A mouth and nose avoidance hole is provided in the middle of the support frame. A detachable breathing diaphragm is provided inside the mouth and nose avoidance hole. Several breathable micropores are provided on the breathing diaphragm. Elastic wearing components are symmetrically arranged on both sides of the support frame.

[0008] The adaptive adjustment component includes several micro-inflatable airbags, an inflation tube, and a micro-electric inflation pump. The micro-electric inflation pump is located inside the housing. The micro-inflatable airbags are arranged in a ring array on the inner side of the support frame and abut against the flexible bonding layer. One end of the inflation tube is connected to the micro-inflatable airbag, and the other end is detachably connected to the micro-electric inflation pump. The inflation tube is equipped with an electromagnetic deflation valve, which is electrically connected to the control module of the atomizing body.

[0009] Furthermore, in the aforementioned age-friendly nebulized respiratory drug delivery device, the nebulization generation module includes a miniature air compressor and an air duct connected to the miniature air compressor. A detachable drug storage chamber is provided at the end of the air duct away from the miniature air compressor. The detachable drug storage chamber includes a cup body and a nozzle located at the bottom of the cup body. A fog-blocking plate is provided above the nozzle. A fog outlet is provided on the side wall of the cup body. A constant temperature heating jacket is provided on the outside of the cup body.

[0010] Furthermore, the aforementioned age-friendly nebulized respiratory drug delivery device includes an oxygen supply regulation module comprising an oxygen storage tank, an oxygen output port installed on the oxygen storage tank, a pressure regulating valve, a flow sensor, and a gas replenishment interface. The oxygen storage tank is located inside the housing, the pressure regulating valve is installed at the oxygen output port, and the flow sensor is connected in series with the pressure regulating valve to detect the oxygen output flow and feed it back to the control module.

[0011] Furthermore, the aforementioned age-appropriate nebulized respiratory drug delivery device includes an intelligent mixing module comprising a mixing chamber, an airflow stirring assembly, and a flow rate control valve. The mixing chamber has an inlet, and the inlet is equipped with a bidirectional electric regulating valve. The bidirectional electric regulating valve is connected to the mist outlet of the nebulization generation module and the output end of the oxygen supply regulating module, respectively controlling the input amounts of drug mist and oxygen. The airflow stirring assembly includes spiral stirring blades and a micro-drive motor installed within the mixing chamber. The micro-drive motor drives the spiral stirring blades to rotate, achieving uniform mixing of oxygen mist. The flow rate control valve is located at the output end of the mixing chamber and is sealed to the oxygen mist delivery channel. Its opening is adjusted by the control module to achieve dynamic control of the mixed oxygen mist delivery flow rate.

[0012] Furthermore, in the aforementioned age-appropriate nebulized respiratory drug delivery device, the oxygen mist delivery channel includes a main delivery pipe and several dispersed mist outlets. The main delivery pipe connects the breathing mask and the mixing chamber. One end of the main delivery pipe near the breathing mask branches to form several dispersed mist outlets. The dispersed mist outlets are evenly distributed on the inner side of the breathing mask, corresponding to the patient's mouth and nose area. Each dispersed mist outlet is equipped with a one-way valve to prevent gas backflow during exhalation.

[0013] Furthermore, the aforementioned age-appropriate nebulized respiratory drug delivery device includes a self-closing valve assembly comprising a connecting seat communicating with the oxygen mist delivery channel, a sealing plug slidably disposed within the connecting seat, and an elastic element for driving the sealing plug to reset. The inner wall of the housing is provided with a snap-fit ​​groove adapted to the connecting seat. When the connecting seat snaps into the snap-fit ​​groove, the sealing plug is pressed to close the channel of the oxygen mist delivery channel.

[0014] Furthermore, the aforementioned age-friendly nebulized respiratory drug delivery device has an anti-slip and shock-absorbing base at the bottom of the nebulizer body, a portable handle at the top, and an external power interface on the outside.

[0015] Furthermore, the aforementioned age-appropriate nebulized respiratory drug delivery device has an arc-shaped airflow buffer plate installed inside the mixing chamber.

[0016] Furthermore, the aforementioned age-friendly nebulized respiratory drug delivery device has a heat dissipation grille and a tubing storage groove on the side of the housing.

[0017] Furthermore, the aforementioned age-friendly nebulized respiratory drug delivery device has a control panel installed on the outer wall of the housing, and the control panel is electrically connected to the nebulization generation module, the oxygen supply regulation module, the intelligent mixing module, and the control module.

[0018] The beneficial effects of this invention are as follows: This device solves the pain points of traditional devices such as poor fit, drug mist leakage, cumbersome operation, and uneven oxygen mist mixing by multi-module intelligent linkage and aging-friendly structural optimization. It greatly improves the efficiency, comfort and safety of nebulization treatment for elderly patients and is adapted to the physiological characteristics and usage ability of the elderly.

[0019] The device integrates nebulization generation, oxygen supply regulation, intelligent mixing, and control modules, realizing integrated oxygen supply and nebulized drug delivery. This eliminates the need to operate two separate sets of equipment, greatly simplifying the operation process. The breathing mask features a support frame, a flexible fitting layer, and an adaptive adjustment component. The ring array of micro-inflatable airbags can adaptively inflate and adjust according to the facial contours of the elderly. Combined with a detachable breathing diaphragm, it improves the mask's fit and effectively reduces drug leakage.

[0020] The oxygen supply regulation module achieves precise detection and dynamic control of oxygen flow through a pressure regulating valve and a flow sensor. The intelligent mixing module uses a two-way electric regulating valve to control the input of medicine mist and oxygen respectively. The spiral stirring blades achieve uniform mixing of the two, and the airflow buffer plate improves the mixing stability. The flow rate control valve can dynamically adjust the oxygen mist delivery flow rate according to the breathing characteristics of the elderly, so that the delivery rhythm is matched with breathing, avoiding problems such as abnormal oxygen concentration and excessive dilution of medicine mist.

[0021] The detachable drug storage chamber of the atomization module is equipped with a constant temperature heating jacket and a fog-blocking plate, which not only refines the droplets and ensures stable atomization, but also avoids the respiratory tract irritation caused by low-temperature drug mist. The oxygen mist delivery channel adopts a main pipeline plus a dispersed mist outlet design, with a one-way valve to prevent gas backflow. The self-closing valve group can seal the channel when the equipment is idle to prevent impurities from entering and drug mist from leaking.

[0022] In addition, the device is equipped with a non-slip and shock-absorbing base, a portable handle, and a pipe storage slot to improve ease of use and storage; the control panel enables centralized intelligent operation, and the heat dissipation grille effectively dissipates heat and extends the life of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the device;

[0024] Figure 2 A schematic diagram of the connection structure of each module;

[0025] Figure 3 This is a schematic diagram of the structure of a breathing mask;

[0026] Figure 4 This is a schematic diagram of the mixing chamber.

[0027] Figure 5 This is a schematic diagram of the detachable medicine storage compartment;

[0028] The components include: 1. Shell, 2. Oxygen mist delivery channel, 3. Breathing mask, 4. Self-closing valve assembly, 5. Support frame, 6. Flexible fitting layer, 7. Mouth and nose clearance opening, 8. Breathing diaphragm, 9. Breathable micropores, 10. Elastic wearing component, 11. Miniature inflatable airbag, 12. Inflation tube, 13. Miniature electric air pump, 14. Electromagnetic deflation valve, 15. Miniature air compressor, 16. Air guide tube, 17. Cup body, 18. Nozzle, 19. Fog shield, 20. Fog outlet, 21. Constant temperature heating jacket, 22. Oxygen storage. Storage tank, 23. Oxygen outlet, 24. First pressure regulating valve, 25. First flow sensor, 26. Gas supply interface, 27. Mixing chamber, 28. Flow rate control valve, 29. Feed inlet, 30. Two-way electric regulating valve, 31. Spiral stirring blades, 32. Micro drive motor, 33. Main delivery pipe, 34. Dispersing mist outlet, 35. Anti-slip shock-absorbing base, 36. Portable handle, 37. Power interface, 38. Airflow buffer plate, 39. Heat dissipation grille, 40. Pipeline storage slot, 41. Control panel. Detailed Implementation

[0029] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0030] like Figures 1-5 As shown, this embodiment provides an age-appropriate nebulized respiratory drug delivery device, which is suitable for nebulized respiratory drug delivery treatment for elderly patients with respiratory diseases, and is especially suitable for the physiological characteristics of the elderly, such as relaxed facial muscles, slow and shallow breathing rate, and weak limb mobility.

[0031] This device includes an atomizing body and a breathing assembly connected to the atomizing body. The atomizing body includes a housing 1, an atomizing module, an oxygen supply regulation module, an intelligent mixing module, and a control module. The control module is electrically connected to the atomizing module, the oxygen supply regulation module, and the intelligent mixing module. The breathing assembly includes an oxygen mist delivery channel 2 connected to the atomizing body. A breathing mask 3 is installed at the end of the oxygen mist delivery channel 2 away from the atomizing body. A self-closing valve group 4 is installed at the connection between the oxygen mist delivery channel 2 and the atomizing body. The atomizing body has an anti-slip and shock-absorbing base 35 at the bottom, a portable handle 36 at the top, and an external power interface 37 on the outside. The side of the housing 1 has a heat dissipation grille 39 and a pipe storage slot 40. The outer wall of the housing 1 has a control panel 41, which is electrically connected to the atomizing module, the oxygen supply regulation module, the intelligent mixing module, and the control module.

[0032] The atomization module includes a miniature air compressor 15 and an air guide pipe 16 connected to the miniature air compressor 15. A detachable drug storage chamber is provided at the end of the air guide pipe 16 away from the miniature air compressor 15. The detachable drug storage chamber includes a cup body 17 and a nozzle 18 located at the bottom of the cup body 17. A fog deflector 19 is provided above the nozzle 18. A mist outlet 20 is provided on the side wall of the cup body 17. A constant temperature heating jacket 21 is provided on the outside of the cup body 17. The miniature air compressor 15 generates a high-pressure airflow, which is delivered to the nozzle 18 through the air guide pipe 16. The high-pressure airflow impacts the liquid medicine in the cup body 17 to form atomized droplets. The fog deflector 19 further refines the droplets. The constant temperature heating jacket 21 heats the cup body 17 at a constant temperature to keep the drug mist at a suitable temperature. The refined drug mist is delivered to the subsequent module through the mist outlet 20.

[0033] The oxygen regulation module includes an oxygen storage tank 22, an oxygen outlet 23 installed on the oxygen storage tank 22, a pressure regulating valve, a flow sensor, and a gas replenishment interface 26. The oxygen storage tank 22 is located inside the housing 1. The pressure regulating valve is installed at the oxygen outlet 23. The flow sensor is connected in series with the pressure regulating valve to detect the oxygen output flow and feed it back to the control module. The oxygen storage tank 22 provides the oxygen source, and the gas replenishment interface 26 enables the oxygen storage tank 22 to replenish gas. The pressure regulating valve regulates the pressure value of the oxygen output. The flow sensor detects the oxygen output flow in real time and transmits the detection signal to the control module. The control module dynamically regulates the pressure regulating valve according to the feedback signal to achieve precise control of the oxygen flow.

[0034] The intelligent mixing module includes a mixing chamber 27, an airflow stirring assembly, and a flow rate control valve 28. The mixing chamber 27 has an inlet 29, and a bidirectional electric regulating valve 30 is installed on the inlet 29. The bidirectional electric regulating valve 30 is connected to the mist outlet 20 of the atomization module and the output of the oxygen supply regulating module, respectively controlling the input of the drug mist and oxygen. The airflow stirring assembly includes spiral stirring blades 31 and a micro-drive motor 32 installed in the mixing chamber 27. An arc-shaped airflow buffer plate 38 is also installed in the mixing chamber 27. The flow rate control valve 28 is located within the mixing chamber 27. The output end is sealed to the oxygen mist delivery channel 2, and its opening is adjusted by the control module. The drug mist and oxygen enter the mixing chamber 27 in a set ratio through the bidirectional electric regulating valve 30. The arc-shaped airflow buffer plate 38 buffers the drug mist and oxygen entering the mixing chamber 27 to avoid uneven mixing caused by airflow impact. The micro drive motor 32 drives the spiral stirring blade 31 to rotate, which fully stirs the drug mist and oxygen in the mixing chamber 27 to achieve uniform mixing of oxygen mist. The control module controls the opening of the valve 28 by adjusting the flow rate to achieve dynamic control of the mixed oxygen mist delivery flow rate.

[0035] The oxygen mist delivery channel 2 includes a main delivery pipe 33 and several dispersing mist outlets 34. The main delivery pipe 33 connects the breathing mask 3 and the flow rate control valve 28 of the mixing chamber 27. The end of the main delivery pipe 33 near the breathing mask 3 branches to form several dispersing mist outlets 34. The dispersing mist outlets 34 are evenly distributed on the inner side of the breathing mask 3, corresponding to the patient's mouth and nose area. Each dispersing mist outlet 34 is equipped with a one-way valve. The mixed oxygen mist is delivered to the dispersing mist outlets 34 through the main delivery pipe 33 and evenly delivered to the patient's mouth and nose. The one-way valve can effectively prevent gas from flowing back into the oxygen mist delivery channel 2 when the patient exhales.

[0036] The self-closing valve assembly 4 includes a connecting seat communicating with the oxygen mist delivery channel 2, a sealing plug slidably disposed in the connecting seat, and an elastic element that drives the sealing plug to reset. The inner wall of the housing 1 is provided with a snap-fit ​​groove adapted to the connecting seat. When the oxygen mist delivery channel 2 is normally connected and used with the atomizing body, the connecting seat disengages from the snap-fit ​​groove, and the elastic element drives the sealing plug to slide, keeping the oxygen mist delivery channel 2 in a conductive state. When the equipment is idle, the connecting seat is snapped into the snap-fit ​​groove, the sealing plug is pressed and slides to block the oxygen mist delivery channel 2, realizing the self-closing of the channel.

[0037] The breathing mask 3 includes a support frame 5, a flexible fitting layer 6, and an adaptive adjustment component. The adaptive adjustment component is located between the support frame 5 and the flexible fitting layer 6. The support frame 5 has a mouth and nose avoidance hole 7 in the middle, and a detachable breathing diaphragm 8 is provided inside the mouth and nose avoidance hole 7. The breathing diaphragm 8 has several breathable micropores 9. Elastic wearing components 10 are symmetrically arranged on both sides of the support frame 5. The adaptive adjustment component includes several micro-inflatable airbags 11, an inflation tube 12, and a micro electric inflation pump 13. The micro electric inflation pump 13 is located inside the housing 1. The micro-inflatable airbags 11 are arranged in a ring array inside the support frame 5 and abut against the flexible fitting layer 6. One end of the inflation tube 12 is connected to the micro-inflatable airbag 11, and the other end is detachably connected to the micro electric inflation pump 13. The inflation tube 12 is provided with an electromagnetic deflation valve 14, which is electrically connected to the control module of the atomizing body.

[0038] In use, the breathing mask 3 is worn on the patient's face through the elastic wearing component 10, with the mouth and nose avoidance opening 7 corresponding to the patient's mouth and nose position. The control module starts the micro electric air pump 13, which inflates the micro airbag 11 through the air tube 12. The micro airbag 11 inflates and pushes the flexible fitting layer 6 to fit tightly against the patient's face. The control module can adjust the inflation volume of the micro airbag 11 according to the patient's facial contour through the electromagnetic deflation valve 14 to achieve adaptive fit. The detachable breathing diaphragm 8 ensures the passage of oxygen mist through the breathable micropores 9, while preventing foreign objects from entering the mask and making it easy to disassemble, clean and replace.

[0039] The control panel 41 on the outer wall of the housing 1 integrates various control buttons and display units. Operators can input operation commands to the control module through the control panel 41. The control module can then precisely regulate the atomization parameters of the atomization generation module, the oxygen flow parameters of the oxygen supply regulation module, the oxygen mist mixing ratio and delivery flow rate parameters of the intelligent mixing module, and the air volume parameters of the adaptive adjustment component according to the commands. At the same time, the detection data of various sensors can be displayed in real time on the control panel 41, realizing centralized intelligent control of the equipment.

[0040] This device integrates oxygen supply and nebulized drug delivery, eliminating the need to operate two separate sets of equipment, greatly simplifying the operation process and adapting to the limb manipulation capabilities of elderly patients. The adaptive adjustment component of the breathing mask 3 can achieve adaptive fit according to the facial contours of elderly patients, and together with the flexible fitting layer 6, it effectively improves the fit between the mask and the face. Combined with the detachable breathing diaphragm 8 and one-way valve, it fundamentally solves the problem of drug mist leakage and improves drug delivery efficiency.

[0041] The pressure regulating valve of the oxygen supply regulating module works in conjunction with the flow sensor to achieve precise detection and dynamic control of oxygen flow. The intelligent mixing module, through the synergistic action of the bidirectional electric regulating valve 30, the spiral stirring blade 31, and the airflow buffer plate 38, achieves precise ratio and uniform mixing of drug mist and oxygen. The control module dynamically adjusts the flow rate control valve 28 to match the oxygen mist delivery rhythm with the slow and shallow breathing characteristics of elderly patients, effectively avoiding problems such as abnormal oxygen concentration and excessive dilution of drug mist.

[0042] The constant-temperature heating jacket 21 of the nebulization module avoids irritation to the respiratory tract of elderly patients by low-temperature drug mist, and the fog-blocking plate 19 realizes secondary refinement of drug mist, improving the nebulization effect; the self-closing valve group 4 seals the oxygen mist delivery channel 2 when the equipment is idle, preventing impurities from entering and drug mist from leaking; the anti-slip and shock-absorbing base 35, the portable handle 36, and the pipeline storage slot 40 improve the ease of use and storage of the equipment; the heat dissipation grille 39 effectively dissipates the heat generated by the equipment during operation, extending the service life of the equipment; the centralized intelligent control design of the control panel 41 further reduces the operation difficulty for elderly patients and caregivers. The overall device greatly improves the efficiency, comfort and safety of nebulization treatment for elderly patients, and is fully in line with the physiological characteristics and usage needs of the elderly population.

Claims

1. An age-appropriate nebulized inhalation drug delivery device, characterized in that, Includes an atomizing body and a breathing assembly connected to the atomizing body; The atomizing body includes a shell (1), an atomizing module, an oxygen supply regulation module, an intelligent mixing module, and a control module. The control module is electrically connected to the atomizing module, the oxygen supply regulation module, and the intelligent mixing module, respectively. The breathing assembly includes an oxygen mist delivery channel (2) connected to the nebulizer body, and a breathing mask (3) is provided at the end of the oxygen mist delivery channel (2) away from the nebulizer body. A self-closing valve group (4) is provided at the connection between the oxygen mist delivery channel (2) and the nebulizer body. The breathing mask (3) includes a support frame (5), a flexible fitting layer (6), and an adaptive adjustment component. The adaptive adjustment component is located between the support frame (5) and the flexible fitting layer (6). A mouth and nose avoidance hole (7) is provided in the middle of the support frame (5). A detachable breathing diaphragm (8) is provided inside the mouth and nose avoidance hole (7). Several breathable micropores (9) are provided on the breathing diaphragm (8). Elastic wearing components (10) are symmetrically provided on both sides of the support frame (5). The adaptive adjustment component includes several micro-inflatable airbags (11), an inflation tube (12), and a micro-electric inflation pump (13). The micro-electric inflation pump (13) is located inside the housing (1). The micro-inflatable airbags (11) are arranged in a ring array on the inner side of the support frame (5) and abut against the flexible bonding layer (6). One end of the inflation tube (12) is connected to the micro-inflatable airbags (11), and the other end is detachably connected to the micro-electric inflation pump (13). The inflation tube (12) is provided with an electromagnetic deflation valve (14), which is electrically connected to the control module of the atomizing body.

2. The age-appropriate nebulized respiratory drug delivery device according to claim 1, characterized in that, The atomization module includes a miniature air compressor (15) and an air guide pipe (16) connected to the miniature air compressor (15). A detachable medicine storage chamber is provided at one end of the air guide pipe (16) away from the miniature air compressor (15). The detachable medicine storage chamber includes a cup body (17) and a nozzle (18) provided at the bottom of the cup body (17). A fog baffle (19) is provided above the nozzle (18). A fog outlet (20) is provided on the side wall of the cup body (17). A constant temperature heating jacket (21) is provided on the outside of the cup body (17).

3. The age-appropriate nebulized respiratory drug delivery device according to claim 2, characterized in that, The oxygen supply regulation module includes an oxygen storage tank (22), an oxygen outlet (23) set on the oxygen storage tank (22), a pressure regulating valve, a flow sensor and a gas replenishment interface (26). The oxygen storage tank (22) is located inside the shell (1). The pressure regulating valve is installed at the oxygen outlet (23). The flow sensor is connected in series with the pressure regulating valve to detect the oxygen output flow and feed it back to the control module.

4. The age-appropriate nebulized respiratory drug delivery device according to claim 3, characterized in that, The intelligent mixing module includes a mixing chamber (27), an airflow stirring assembly, and a flow rate control valve (28). The mixing chamber (27) is provided with an inlet (29), and the inlet (29) is provided with a bidirectional electric regulating valve (30). The bidirectional electric regulating valve (30) is connected to the mist outlet (20) of the atomization generation module and the output end of the oxygen supply regulating module, respectively, to control the input amount of drug mist and oxygen. The airflow stirring assembly includes a spiral stirring blade (31) and a micro drive motor (32) set in the mixing chamber (27). The micro drive motor (32) drives the spiral stirring blade (31) to rotate to achieve uniform mixing of oxygen mist. The flow rate control valve (28) is located at the output end of the mixing chamber (27) and is sealed to the oxygen mist conveying channel (2). Its opening degree is adjusted by the control module to achieve dynamic control of the mixed oxygen mist conveying flow rate.

5. The age-appropriate nebulized respiratory drug delivery device according to claim 4, characterized in that, The oxygen mist delivery channel (2) includes a main delivery pipe (33) and several dispersed mist outlets (34). The main delivery pipe (33) connects the breathing mask (3) and the mixing chamber (27). The main delivery pipe (33) branches off at one end near the breathing mask (3) to form several dispersed mist outlets (34). The dispersed mist outlets (34) are evenly distributed on the inner side of the breathing mask (3) and correspond to the patient's mouth and nose area. Each dispersed mist outlet (34) is equipped with a one-way valve to prevent gas backflow during exhalation.

6. The age-appropriate nebulized respiratory drug delivery device according to claim 1, characterized in that, The self-closing valve assembly (4) includes a connecting seat that communicates with the oxygen mist delivery channel (2), a sealing plug that is slidably disposed in the connecting seat, and an elastic element that drives the sealing plug to reset. The inner wall of the housing (1) is provided with a snap-fit ​​groove that is adapted to the connecting seat. When the connecting seat is snapped into the snap-fit ​​groove, the sealing plug is pressed to close the channel of the oxygen mist delivery channel (2).

7. The age-appropriate nebulized respiratory drug delivery device according to claim 1, characterized in that, The atomizing body has an anti-slip and shock-absorbing base (35) at the bottom, a portable handle (36) at the top, and an external power interface (37) on the outside.

8. The age-appropriate nebulized respiratory drug delivery device according to claim 4, characterized in that, An arc-shaped airflow buffer plate (38) is provided inside the mixing chamber (27).

9. The age-appropriate nebulized respiratory drug delivery device according to claim 1, characterized in that, The side of the housing (1) is provided with a heat dissipation grille (39) and a pipe storage groove (40).

10. The age-appropriate nebulized respiratory drug delivery device according to any one of claims 1 to 9, characterized in that, The outer wall of the housing (1) is provided with a control panel (41), which is electrically connected to the atomization generation module, the oxygen supply adjustment module, the intelligent mixing module and the control module.

Images