A pediatric nebulizer for the treatment of pneumonia

Abstract

This invention belongs to the field of medical device technology, specifically relating to a nebulized inhalation device for treating pediatric pneumonia. The device includes a main body connected to a spray tube; an oxygen supply section including an oxygen cylinder, the outlet of which is connected to the spray tube; a spray section including a compressor, the outlet of which is connected to a mixing tank, which is connected to the spray tube; a feeding section including a medication cartridge connected to a delivery tube, which is connected to the mixing tank; and an adjustment section including a guide rod with a sealing plug at its lower end, a lifting rod inside the guide rod, and a U-shaped plug fixedly connected to its lower end, positioned above the delivery tube. This invention enables rapid mixing of medication and oxygen with the medication mist, allows for quick assembly and disassembly of the medication cartridge, and allows for flexible control of the dynamic and directional release of a specific medication during treatment, ensuring the comfort of the child during treatment.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a nebulized inhalation device for the treatment of pediatric pneumonia. Background Technology

[0002] Pneumonia is a common respiratory disease threatening children's health, especially infants and young children, with high morbidity and hospitalization rates. Nebulized inhalation therapy, because it delivers medication directly to the airways and lungs, has a rapid onset of action and relatively few systemic side effects, and has become one of the core methods for treating pediatric pneumonia. However, children are not simply "miniature adults"; their physiological characteristics, pathological mechanisms, and responses to treatment differ significantly, placing higher demands on nebulized inhalation devices. Firstly, pneumonia treatment usually requires a combination of drugs to address multiple pathological aspects such as infection, inflammation, and airway spasm.

[0003] The current standard procedure for nebulization therapy is to use multiple independent nebulizers to inhale different medications separately, or to manually mix multiple medications in a nebulizer cup and inhale them all at once. If multiple nebulizers are used to inhale the medication separately, and a child who is restless and irritable due to hypoxia and coughing undergoes multiple prolonged procedures, the child will cry violently and resist due to prolonged discomfort, which will worsen the breathing difficulties. The crying may also cause a large amount of medication to be exhaled, and the actual inhaled dose will be far lower than what is needed for treatment.

[0004] While mixing multiple medications in a single nebulizer cup may seem convenient, it carries significant risks. First, during pneumonia treatment, a child's clinical symptoms (such as wheezing and hypoxia) are dynamic. For instance, at the beginning of nebulization, a higher concentration of bronchodilator may be needed to quickly relieve spasms; as treatment progresses and the airway gradually opens, a lower concentration of bronchodilator may be required while ensuring adequate inhalation of the medication. Existing nebulizers cannot dynamically adjust the medication ratio during a single treatment session; they can only pre-mix the medication (with a fixed ratio) or perform nebulization multiple times (requiring stopping the machine to change medication, which is time-consuming). This prevents the child from adapting and building tolerance before treatment, resulting in lower comfort and treatment efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a nebulized inhalation device for the treatment of pediatric pneumonia, which can achieve rapid mixing of drugs and oxygen with drug mist, quick assembly and disassembly of the drug cartridge, and can arbitrarily control the dynamic and curved release of a certain drug solution during the treatment process according to needs, so as to ensure the comfort of the child during the treatment process.

[0006] The specific technical solution adopted by this invention is as follows: A nebulized inhalation device for the treatment of pediatric pneumonia, comprising: The main body has a spray pipe connected to its front. The oxygen supply unit includes an oxygen cylinder, which is located inside the main body and its outlet is connected to the spray pipe. The spraying unit includes a compressor, which is located inside the main body. A mixing tank is connected to the outlet of the compressor, and the mixing tank is connected to the spraying pipe. The feeding section includes a cartridge, and a conveying pipe is connected to the bottom of the cartridge. The conveying pipe is connected to the mixing tank. The adjustment unit includes a guide rod that is slidably connected inside the cartridge. A sealing plug is connected to the lower end of the guide rod. A lifting rod is provided inside the guide rod. A U-shaped plug is fixedly connected to the lower end of the lifting rod. The U-shaped plug is positioned above the delivery pipe. When the cartridge case is connected to the delivery pipe, the delivery pipe drives the sealing plug to rise and open the cartridge case, and the lifting rod moves up and down along the inner cavity of the delivery pipe, driving the U-shaped plug to cover the inlet of the delivery pipe.

[0007] In a preferred embodiment, an operating table is fixedly connected to the center of the front of the main body, a switch is provided on the left side of the operating table, a spray pipe is fixedly connected to the center of the operating table, a hose is connected to the outlet of the spray pipe, and a face mask is connected to the outlet of the hose.

[0008] In a preferred embodiment, a groove is provided at the rear right side of the main body, and an oxygen cylinder is movably engaged in the groove. The oxygen cylinder extends into the inner cavity of the main body, and a valve is fixedly connected to the left side of the inner cavity of the main body. Both the inlet and outlet of the valve are connected to gas supply pipes. The gas supply pipe connected at the inlet is connected to the outlet of the oxygen cylinder, while the gas supply pipe at the outlet is connected to a three-way valve.

[0009] In a preferred embodiment, the compressor is fixedly connected to the middle of the inner cavity of the main body, and the inlet of the compressor is connected to an air inlet pipe. The inlet of the air inlet pipe extends out of the main body and is located on the right side of the front of the operating table. The outlet of the compressor is connected to a rigid pipe, and the outlet of the rigid pipe is connected to a three-way valve. The outlet of the three-way valve is connected to a mixing tank, and the outlet of the mixing tank is connected to the inlet of the spray pipe.

[0010] In a preferred embodiment, the material bucket is divided into upper and lower parts, and the upper and lower parts are fixedly connected to a mixing tray. A through groove is opened in the middle of the mixing tray, and the lower end of the through groove is connected to a pipeline.

[0011] In a preferred embodiment, the upper end of the main body has multiple sets of grooves, and a cartridge is movably inserted into the groove. Limiting blocks are fixedly connected to the front and rear sides of the lower end of the cartridge, and the limiting blocks are movably inserted into the groove. A locking block is slidably connected to the groove at the upper end of the main body. The outer end of the locking block extends into the groove and is locked above the limiting block. A spring A is fixedly connected to one end of the locking block located in the inner cavity of the main body, and the other end of the spring A is fixedly connected to the inner cavity of the main body.

[0012] In a preferred embodiment, a delivery pipe is fixedly connected to the lower end of the inner cavity of the upper groove of the main body. The upper end of the delivery pipe is inserted into the inner cavity of the cartridge and communicates with the lower outlet of the cartridge. Inlets are opened on the left and right sides of the upper end of the delivery pipe, and the inlets extend into the inner cavity of the cartridge.

[0013] In a preferred embodiment, the guide rod is slidably connected to the upper end of the inner cavity of the cartridge, and a sealing plug is fixedly connected to the lower end of the guide rod. The lower end of the sealing plug is in contact with the upper end of the delivery tube. A limiting tube is fixedly connected to the upper end of the inner cavity of the cartridge. The outer ring of the upper end of the guide rod is slidably connected to the limiting tube. A spring B is fixedly connected to the upper end of the inner cavity of the limiting tube. The lower end of the spring B is fixedly connected to the outer ring of the upper end of the guide rod.

[0014] In a preferred embodiment, the inner cavity of the guide rod is provided with a cavity, and a lifting rod is slidably connected in the cavity. The lower end of the lifting rod passes through the guide rod and is fixedly connected to a U-shaped plug. The outer surface of the U-shaped plug is fitted together with the sealing plug, and the U-shaped plug is positioned above the inlet of the conveying pipe.

[0015] In a preferred embodiment, the upper end of the guide rod extends out of the cartridge, and the portion extending out of the cartridge has multiple sets of limiting grooves. The upper outer ring of the lifting rod is fixedly connected to multiple sets of protruding strips, and the protruding strips are slidably connected in the limiting grooves of the outer ring of the guide rod. The upper outer ring of the lifting rod is evenly provided with scale strips. A lead screw is rotatably connected to the middle of the upper end of the guide rod. The lower end of the lead screw is threadedly connected to the upper end of the inner cavity of the lifting rod. The upper end of the lead screw extends out of the guide rod and is fixedly connected to a handle.

[0016] The technical effects achieved by this invention are as follows: The oxygen supply unit and spray unit of this invention can achieve rapid mixing of drugs and mixing of oxygen and drug mist, improving the comfort during treatment. In use, the drug solution enters the mixing tank through the delivery pipe for mixing, the compressor runs and releases high-pressure gas to atomize the drug solution, and outputs it outward through the spray pipe. At the same time, the oxygen cylinder also outputs oxygen to mix with the high-pressure gas and input it into the mixing tank for atomization. Furthermore, the oxygen concentration can be adjusted in real time according to the progress of treatment to ensure comfort and the effectiveness of treatment. The feeding part of this invention enables quick assembly and disassembly of the cartridge, facilitating treatment and maintenance operations. When the cartridge is inserted into the main body during use, the limiting component inside the main body is pushed into the main body by the descending cartridge, and then pushed outward after the cartridge is fully connected, and locked in place above the cartridge, thereby quickly fixing the cartridge and preventing cartridge displacement from affecting subsequent control of the liquid flow rate. The adjustment unit of this invention can arbitrarily control the dynamic and cyclical release of a certain medication during treatment according to needs, ensuring the comfort of the child during treatment and enabling the child to better adapt to the treatment process. In the initial stage of treatment, the lifting rod is driven to rise and fall, causing the U-shaped plug to descend, partially or completely blocking the inlet of the delivery tube, controlling the release of a certain medication in small amounts or not at all in the early stage of treatment. As treatment progresses, the descending U-shaped plug can be gradually driven to rise or fully open, allowing the medication to be gradually increased after the child adapts, effectively reducing the child's discomfort and improving treatment compliance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the entire left side view in this invention; Figure 3 This is a schematic cross-sectional view of the entire invention. Figure 4 This is a schematic diagram showing the position of the delivery pipe in this invention; Figure 5 This is a cross-sectional schematic diagram of the feeding section in this invention; Figure 6 This is a cross-sectional schematic diagram of the mixing tank in this invention; Figure 7 This is a cross-sectional schematic diagram of the medicine tube in this invention; Figure 8 This is a schematic diagram of the descent of the U-shaped plug in this invention; Figure 9 This is a cross-sectional schematic diagram of the adjustment section in this invention; Figure 10 This is a cross-sectional schematic diagram of the guide rod in this invention; Figure 11 This is a schematic diagram showing the position of the scale bar in this invention; Figure 12 This is a schematic diagram showing the position of the lead screw in this invention.

[0018] The attached diagram lists the components represented by each number as follows: 10. Main body; 11. Control panel; 12. Switch; 13. Spray pipe; 14. Hose; 15. Face mask; 20. Oxygen supply unit; 21. Oxygen cylinder; 22. Valve; 23. Gas delivery pipe; 24. Three-way valve; 30. Spray unit; 31. Compressor; 32. Inlet pipe; 33. Rigid pipe; 34. Mixing tank; 35. Mixing tray; 40. Feeding unit; 41. Drug cartridge; 42. Limiting block; 43. Locking block; 44. Spring A; 45. Delivery pipe; 50. Adjustment unit; 51. Guide rod; 52. Sealing plug; 53. Limiting tube; 54. Spring B; 55. Lifting rod; 56. U-shaped plug; 57. Scale bar; 58. Lead screw; 59. Handle. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0023] Please see the appendix Figures 1 to 10 As shown, this embodiment provides a nebulized inhalation device for the treatment of pediatric pneumonia, comprising: The main body 10 has a spray pipe 13 connected to its front side; The oxygen supply unit 20 includes an oxygen cylinder 21, which is disposed inside the main body 10 and whose outlet is connected to the spray pipe 13. The spray unit 30 includes a compressor 31, which is installed inside the main body 10. The outlet of the compressor 31 is connected to a mixing tank 34, which is connected to the spray pipe 13. The feeding section 40 includes a cartridge 41, and a conveying pipe 45 is connected to the lower part of the cartridge 41. The conveying pipe 45 is connected to the mixing tank 34. Adjustment unit 50 includes a guide rod 51, which is slidably connected inside the cartridge 41. A sealing plug 52 is connected to the lower end of the guide rod 51. A lifting rod 55 is provided in the inner cavity of the guide rod 51. A U-shaped plug 56 is fixedly connected to the lower end of the lifting rod 55. The U-shaped plug 56 is located above the delivery pipe 45. When the cartridge 41 is connected to the delivery pipe 45, the delivery pipe 45 drives the sealing plug 52 to rise and open the cartridge 41. The lifting rod 55 moves up and down along the inner cavity of the delivery pipe 45, driving the U-shaped plug 56 to cover the inlet of the delivery pipe 45.

[0024] It should be noted that the inner cavity of the main body 10 should be equipped with control components to control the operation of each internal component, so as to facilitate the stable operation of each component. To ensure the device's emergency response capability, the main body 10 should also be equipped with an energy storage element and connected to the mains power supply, so that the energy storage element can be used for short-term operation in emergency situations such as power outages.

[0025] In this embodiment, during use, the cartridge 41 is connected to the delivery pipe 45, and the lifting rod 55 is driven to rise and fall, causing the U-shaped plug 56 to descend, partially or completely blocking the inlet of the delivery pipe 45. This controls the output of a particular medication during treatment. The medication then enters the mixing tank 34 through the delivery pipe 45 for mixing. The compressor 31 operates, releasing high-pressure gas, while the oxygen cylinder 21 also outputs oxygen to mix with the high-pressure gas. The mixed gas then enters the mixing tank 34 to atomize the medication, which is then output through the spray pipe 13. As the treatment progresses, the lifting rod 55 can be driven to rise and fall again, causing the U-shaped plug 56 to rise and fall, controlling the increase or decrease in the dosage of a particular medication. This achieves a directional release of the medication, allowing the child to better adapt to the discomfort caused by drug treatment.

[0026] Secondly, please refer to it again. Figures 1 to 2 An operating table 11 is fixedly connected to the center of the front of the main body 10. A switch 12 is provided on the left side of the operating table 11. A spray pipe 13 is fixedly connected to the center of the operating table 11. A hose 14 is connected to the outlet of the spray pipe 13. A mask 15 is connected to the outlet of the hose 14.

[0027] It should be noted that a pipe clamp is provided on the right side of the front of the main body 10, which is used to clamp the lower end of the hose 14 and the mask 15. The mask 15 contains components such as control valves according to the needs of respiratory therapy (this is a common technical structure in the prior art, which will not be described in detail here). Hose 14 can be disassembled for subsequent maintenance; The side of the main body 10 should be provided with an inspection port for maintaining the internal components of the main body 10; The rear end of the main body 10 is equipped with a power connector for connecting to the mains power to maintain the stable operation of the device; Switch 12 is used to control the overall opening and closing of the device, and switch 12 should be equipped with a safety device to prevent treatment interruption due to accidental activation.

[0028] In this embodiment, the device is activated by switch 12, the child puts on mask 15, and the atomized medicine and oxygen mixture is delivered to mask 15 through spray tube 13 and hose 14 for the child to inhale.

[0029] Secondly, please refer to it again. Figure 1 , Figure 3 and Figure 6 A groove is provided at the rear right side of the main body 10. An oxygen cylinder 21 is movably engaged in the groove. The oxygen cylinder 21 extends into the inner cavity of the main body 10. A valve 22 is fixedly connected to the left side of the inner cavity of the main body 10. Both the inlet and outlet of the valve 22 are connected to gas supply pipes 23. The gas supply pipe 23 connected at the inlet is connected to the outlet of the oxygen cylinder 21, while the gas supply pipe 23 at the outlet is connected to a three-way valve 24.

[0030] It should be noted that the inner cavity of the main body 10 is provided with a support for storing and fixing the oxygen cylinder 21; The three-way valve 24 is equipped with two sets of inlets and one set of outlets for conveying the chemical mist and oxygen in the mixing tank 34. The three-way valve 24 is an electronic valve for controlling its opening and closing.

[0031] In this embodiment, during use, the oxygen in the oxygen cylinder 21 is regulated by the valve 22, then delivered to the three-way valve 24 via the gas delivery pipe 23. There, it merges with the high-pressure gas from the compressor 31 and enters the mixing tank 34, atomizing the medication within. The medication is then output through the spray pipe 13. The valve 22 can dynamically adjust the oxygen output flow rate according to the child's blood oxygen saturation and other indicators, ensuring the child receives adequate oxygen supply during nebulization therapy and avoiding the risk of hypoxia or oxygen toxicity.

[0032] Secondly, please refer to it again. Figure 3 , Figures 5 to 6 The compressor 31 is fixedly connected to the middle of the inner cavity of the main body 10, and the inlet of the compressor 31 is connected to the air inlet pipe 32. The inlet of the air inlet pipe 32 extends out of the main body 10 and is located on the right side of the front of the operating table 11. The outlet of the compressor 31 is connected to the rigid pipe 33. The outlet of the rigid pipe 33 is connected to the three-head valve 24. The outlet of the three-head valve 24 is connected to the mixing tank 34. The outlet of the mixing tank 34 is connected to the inlet of the spray pipe 13. The mixing tank 34 is divided into upper and lower parts, and the upper and lower parts are fixedly connected to the mixing tray 35. A through groove is opened in the middle of the mixing tray 35, and the lower end of the through groove is connected to a pipeline.

[0033] It should be noted that a one-way valve should be installed at the position of the through groove in the middle of the mixing tray 35 to prevent the high-pressure gas released by the compressor 31 from flowing upward from the position of the through groove and affecting the delivery of mist. The atomization zone at the lower end of the mixing tank 34 should be equipped with atomizing nozzles, so that oxygen and high-pressure gas can be mixed with the liquid and atomized after entering the mixing tank 34; The surface of the mixing disc 35 is provided with an inclined slope, and the slope is evenly provided with spiral grooves (such as...). Figure 6 As shown), the liquid medicine can be guided through the mixing plate 35 when it flows, and the liquid medicine is driven to enter the atomization area below the mixing tank 34 in a spiral collision and mix together to ensure the mixing effect. A pipeline is connected to the through groove in the middle of the mixing tray 35, and the lower outlet of the pipeline is located at the bottom of the atomization area at the lower end of the mixing tank 34. The pipeline is only reserved at the height of the liquid outlet at the bottom of the inner cavity. A one-way valve is installed in the inner cavity of the pipeline. The purpose is to allow the medicine liquid after mixing in the mixing tray 35 to flow through the pipeline to the lower end of the inner cavity of the mixing tank 34. The medicine liquid is supplied to the atomization area through the principle of the communicating vessel, forming a "liquid seal" to prevent high pressure gas from flowing back into the upper part of the mixing tray 35 and to avoid affecting the normal input of the medicine liquid. One-way valves should be installed at both inlets of the three-way valve 24 (connecting the air inlet pipe 32 and the air outlet pipe 23) to prevent oxygen or high-pressure gas from flowing out and affecting the stability of gas convergence.

[0034] In this embodiment, during use, the compressor 31 draws in air from the outside through the intake pipe 32, compresses it to form a high-pressure airflow, and delivers it to the three-way valve 24 through the rigid pipe 33. There, it mixes with oxygen delivered through the air supply pipe 23 and then enters the lower part of the mixing tank 34. When the liquid medicine enters the upper part of the mixing tank 34 from the delivery pipe 45, it flows onto the mixing disc 35. The inclined slope and arc-shaped grooves on the surface of the mixing disc 35 guide the liquid medicine to flow towards the center for mixing and then downwards. The high-pressure airflow entering the lower part of the mixing tank 34 then atomizes the liquid medicine into fine droplets through the atomizing nozzle. The atomized mixed liquid medicine mist then enters the three-way valve 24 through the outlet of the mixing tank 34, where it is further mixed with oxygen before being output.

[0035] Please refer to it again. Figures 4 to 8 The upper end of the main body 10 has multiple sets of grooves, and a cartridge 41 is movably inserted into the groove. Limiting blocks 42 are fixedly connected to the front and rear sides of the lower end of the cartridge 41. The limiting blocks 42 are movably inserted into the groove. A locking block 43 is slidably connected to the groove at the upper end of the main body 10. The outer end of the locking block 43 extends into the groove and is locked above the limiting block 42. A spring A44 is fixedly connected to one end of the locking block 43 located in the inner cavity of the main body 10. The other end of the spring A44 is fixedly connected to the inner cavity of the main body 10. A delivery pipe 45 is fixedly connected to the lower end of the inner cavity of the groove at the upper end of the main body 10. The upper end of the delivery pipe 45 is inserted into the inner cavity of the cartridge 41 and communicates with the lower end outlet of the cartridge 41. Inlets are opened on the left and right sides of the upper end of the delivery pipe 45, and the inlet part extends into the inner cavity of the cartridge 41.

[0036] It should be noted that the part of the cartridge 41 that contacts the delivery pipe 45 is equipped with a sealing layer to prevent the liquid medicine from leaking out and affecting its use; The lower end of the inlet of the delivery pipe 45 is at the same height as the lower end wall of the inner cavity of the cartridge 41, ensuring that the liquid medicine in the cartridge 41 can be completely discharged. The left side of the cartridge 41 is provided with an injection port for filling with liquid medicine, and the upper end is provided with a pressure relief valve to ensure that the liquid medicine can be discharged smoothly. The locking block 43 has an L-shaped structure, and the upper protrusion drives the locking block 43 to retract into the main body 10. The part of the locking block 43 that extends into the upper groove of the main body 10 has a trapezoidal structure with a ramp at the upper end. This is designed so that when the cartridge 41 is inserted into the groove, it will first contact the ramp of the locking block 43 and push it back into the main body 10. After the cartridge 41 is fully connected, the spring A44 will drive the locking block 43 to lock above the cartridge 41 for limiting and fixing. The delivery tube 45 should have a built-in check valve to prevent liquid or gas backflow from affecting drug delivery; The top of the cartridge 41 should be provided with a detachable structure so that the cartridge 41 can be disassembled for cleaning.

[0037] In this embodiment, during use, the cartridge 41 is inserted into the groove at the upper end of the main body 10. At this time, the limiting block 42 contacts the ramp of the locking block 43 and pushes the locking block 43 to slide into the inner cavity of the main body 10, compressing the spring A44. When the cartridge 41 is fully inserted and the limiting block 42 passes the locking block 43, the elastic restoring force of the spring A44 pushes the locking block 43 to reset, and its outer end engages above the limiting block 42, thereby firmly fixing the cartridge 41 to the main body 10. At the same time, the upper end of the delivery pipe 45 is inserted into the inner cavity of the cartridge 41, and its inlet portion extends into the inside of the cartridge 41, preparing for the delivery of the medicine. When it is necessary to replace or remove the cartridge 41, simply pull the operating end of the locking block 43 located outside the main body 10 outward, so that the locking block 43 compresses the spring A44 and disengages from the limiting block 42, allowing the cartridge 41 to be pulled out upward.

[0038] Please refer to it again. Figures 7 to 12 The guide rod 51 is slidably connected to the upper end of the inner cavity of the cartridge 41, and the lower end of the guide rod 51 is fixedly connected to a sealing plug 52. The lower end of the sealing plug 52 is in contact with the upper end of the delivery pipe 45. The upper end of the inner cavity of the cartridge 41 is fixedly connected to a limiting tube 53. The upper outer ring of the guide rod 51 is slidably connected to the limiting tube 53. The upper end of the limiting tube 53 is fixedly connected to a spring B54. The lower end of the spring B54 is fixedly connected to the outer ring of the upper end of the guide rod 51. The inner cavity of the guide rod 51 is provided with a cavity, and a lifting rod 55 is slidably connected in the cavity. The lower end of the lifting rod 55 passes through the guide rod 51 and is fixedly connected to a U-shaped plug 56. The outer surface of the U-shaped plug 56 is in contact with the sealing plug 52, and the U-shaped plug 56 is located above the inlet of the conveying pipe 45. The upper end of the guide rod 51 extends out of the cartridge 41, and the part extending out of the cartridge 41 has multiple sets of limiting grooves. The upper outer ring of the lifting rod 55 is fixedly connected to multiple sets of protruding strips, and the protruding strips are slidably connected in the limiting grooves of the outer ring of the guide rod 51. The upper outer ring of the lifting rod 55 is evenly provided with scale strips 57. The middle part of the upper end of the guide rod 51 is rotatably connected to a lead screw 58. The lower end of the lead screw 58 is threadedly connected to the upper end of the inner cavity of the lifting rod 55. The upper end of the lead screw 58 extends out of the guide rod 51 and is fixedly connected to a handle 59.

[0039] It should be noted that the part of the guide rod 51 located in the inner cavity of the limiting tube 53 is provided with a hexagonal block, which restricts the range of motion of the guide rod 51, so that it can only move up and down and cannot rotate. Both the sealing plug 52 and the U-shaped plug 56 have a ramp at their lower ends, and the inner cavity of the cartridge 41 also has a ramp at its lower end. This is intended to ensure the sealing performance of the cartridge 41 under normal conditions by using the ramps of the sealing plug 52 and the U-shaped plug 56. A sealing layer is provided at the part where the U-shaped plug 56 contacts the sealing plug 52; The longer portions of the U-shaped plug 56 are positioned above the inlets on both sides of the delivery pipe 45, and the width of the U-shaped plug 56 should be greater than the width of the inlet of the delivery pipe 45. This is intended to allow the U-shaped plug 56 to control the size of the inlet of the delivery pipe 45 by raising and lowering, thereby limiting the amount of liquid medicine flowing out. The bearing connecting the lead screw 58 and the guide rod 51 is a damping bearing, which prevents the lead screw 58 from rotating arbitrarily and affecting the stability of the adjustment. The upper end of the guide rod 51 should be provided with a detachable structure, and the lower end of the lifting rod 55 should also be provided with a detachable structure, so that the internal structure can be disassembled and cleaned during subsequent maintenance to avoid chemical residue. A bright strip is provided at the bottom of the limiting groove on the upper end of the guide rod 51. The purpose is to intuitively display the opening percentage of the flow rate adjustment by cooperating with the scale bar 57, so as to quantify the current output of the medicine liquid ratio and facilitate adjustment.

[0040] In this embodiment, after the delivery pipe 45 enters the cartridge 41, it pushes the sealing plug 52 upward, compressing the spring B54 and separating the sealing plug 52 from the lower outlet of the cartridge 41. At this point, the liquid medicine in the cartridge 41 can flow into the delivery pipe 45 through its inlet. When it is necessary to adjust the liquid medicine output, rotating the handle 59 drives the lead screw 58 to rotate, which in turn drives the lifting rod 55 and the U-shaped plug 56 to rise and fall. When the U-shaped plug 56 descends, its longer sides gradually cover the inlets on both sides of the delivery pipe 45, thereby reducing the flow area at the inlet and decreasing the outflow of liquid medicine. When the U-shaped plug 56 rises, the coverage area decreases, the flow area at the inlet increases, and the outflow of liquid medicine increases. The scale bar 57 on the lifting rod 55 can visually display the height of the U-shaped plug 56, facilitating precise control of the liquid medicine output ratio. During treatment, medical staff can fine-tune the position of the U-shaped plug 56 by rotating the handle 59 according to the child's response and treatment stage, achieving dynamic and curved release of the medication. For example, the amount of irritating medication can be reduced in the early stages of treatment and gradually increased as the child adapts, effectively reducing the child's discomfort and improving treatment compliance. When the cartridge 41 is pulled out from the main body 10, the pushing force of the delivery tube 45 on the sealing plug 52 disappears, and the elastic restoring force of the spring B54 pushes the guide rod 51 and the sealing plug 52 downward, so that the sealing plug 52 re-fits tightly with the lower outlet of the cartridge 41, preventing leakage of residual medication.

[0041] The working principle of this invention is as follows: During use, the cartridge 41 is inserted into the groove at the upper end of the main body 10. Then, the locking block 43 engages above the limiting block 42, firmly fixing the cartridge 41. Simultaneously, the upper end of the delivery pipe 45 is inserted into the inner cavity of the cartridge 41, with its inlet extending into the cartridge 41, pushing the sealing plug 52 upwards. At this time, the liquid medicine inside the cartridge 41 can flow into the delivery pipe 45 through its inlet. When it is necessary to adjust the liquid medicine output, the handle 59 and the lead screw 58 are rotated, driving the lifting rod 55 and the U-shaped plug 56 to rise and fall. When the U-shaped plug 56 descends, its longer sides gradually cover the inlets on both sides of the delivery pipe 45, thereby reducing the flow area at the inlet and reducing the outflow of liquid medicine. When the U-shaped plug 56 rises, the coverage area decreases, the flow area at the inlet increases, and the outflow of liquid medicine increases. This allows for dynamic, cyclical release of the medication based on the child's response and treatment stage. For example, the amount of irritating medication can be reduced in the early stages of treatment and gradually increased as the child adapts, effectively reducing discomfort and improving treatment compliance. The medication then flows through the delivery pipe 45 into the mixing tank 34 and onto the mixing tray 35 for mixing before being conveyed downwards. Simultaneously, the compressor 31 draws in air from the outside through the air inlet pipe 32, compresses it to form a high-pressure airflow, and inputs it into the three-way valve 24. Meanwhile, oxygen from the oxygen cylinder 21, after flow regulation via valve 22, is also delivered to the three-way valve 24 through the gas delivery pipe 23. The two gases mix and enter the mixing tank 34 together, breaking the medication into fine droplets for atomization. The atomized mixed medication mist then flows through the outlet of the mixing tank 34 into the hose 14 and is delivered to the mask 15 for the child to inhale.

[0042] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A nebulized inhalation device for the treatment of pediatric pneumonia, characterized in that: include: The main body has a spray pipe connected to its front. The oxygen supply unit includes an oxygen cylinder, which is located inside the main body and its outlet is connected to the spray pipe. The spraying unit includes a compressor, which is located inside the main body. A mixing tank is connected to the outlet of the compressor, and the mixing tank is connected to the spraying pipe. The feeding section includes a cartridge, and a conveying pipe is connected to the bottom of the cartridge. The conveying pipe is connected to the mixing tank. The adjustment unit includes a guide rod that is slidably connected inside the cartridge. A sealing plug is connected to the lower end of the guide rod. A lifting rod is provided inside the guide rod. A U-shaped plug is fixedly connected to the lower end of the lifting rod. The U-shaped plug is positioned above the delivery pipe. When the cartridge case is connected to the delivery pipe, the delivery pipe drives the sealing plug to rise and open the cartridge case, and the lifting rod moves up and down along the inner cavity of the delivery pipe, driving the U-shaped plug to cover the inlet of the delivery pipe.

2. The nebulized inhalation device for treating pediatric pneumonia according to claim 1, characterized in that: An operating table is fixedly connected to the center of the front of the main body. A switch is located on the left side of the operating table. A spray pipe is fixedly connected to the center of the operating table. A hose is connected to the outlet of the spray pipe, and a face mask is connected to the outlet of the hose.

3. The nebulized inhalation device for treating pediatric pneumonia according to claim 2, characterized in that: A groove is provided at the rear right side of the main body, and an oxygen cylinder is movably engaged in the groove. The oxygen cylinder extends into the inner cavity of the main body. A valve is fixedly connected to the left side of the inner cavity of the main body. Both the inlet and outlet of the valve are connected to gas supply pipes. The gas supply pipe connected at the inlet is connected to the outlet of the oxygen cylinder, while the gas supply pipe at the outlet is connected to a three-way valve.

4. The nebulized inhalation device for treating pediatric pneumonia according to claim 3, characterized in that: The compressor is fixedly connected to the middle of the inner cavity of the main body, and the inlet of the compressor is connected to the air inlet pipe. The inlet of the air inlet pipe extends out of the main body and is located on the right side of the front of the operating table. The outlet of the compressor is connected to the rigid pipe. The outlet of the rigid pipe is connected to the three-way valve. The outlet of the three-way valve is connected to the mixing tank. The outlet of the mixing tank is connected to the inlet of the spray pipe.

5. The nebulized inhalation device for treating pediatric pneumonia according to claim 1, characterized in that: The material bucket is divided into upper and lower parts, and the upper and lower parts are fixedly connected to a mixing tray. A through groove is opened in the middle of the mixing tray, and the lower end of the through groove is connected to a pipeline.

6. The nebulized inhalation device for treating pediatric pneumonia according to claim 1, characterized in that: The upper end of the main body has multiple sets of grooves, and a cartridge is movably inserted into the groove. Limiting blocks are fixedly connected to the front and rear sides of the lower end of the cartridge. The limiting blocks are movably inserted into the groove. A locking block is slidably connected to the groove at the upper end of the main body. The outer end of the locking block extends into the groove and locks onto the upper limiting block. A spring A is fixedly connected to one end of the locking block located in the inner cavity of the main body. The other end of the spring A is fixedly connected to the inner cavity of the main body.

7. The nebulized inhalation device for treating pediatric pneumonia according to claim 6, characterized in that: A delivery pipe is fixedly connected to the lower end of the inner cavity of the groove at the upper end of the main body. The upper end of the delivery pipe is inserted into the inner cavity of the cartridge and communicates with the lower outlet of the cartridge. Inlets are opened on the left and right sides of the upper end of the delivery pipe, and the inlets extend into the inner cavity of the cartridge.

8. The nebulized inhalation device for treating pediatric pneumonia according to claim 6, characterized in that: The guide rod is slidably connected to the upper end of the inner cavity of the cartridge, and a sealing plug is fixedly connected to the lower end of the guide rod. The lower end of the sealing plug is in contact with the upper end of the delivery tube. A limit tube is fixedly connected to the upper end of the inner cavity of the cartridge. The outer ring of the upper end of the guide rod is slidably connected to the limit tube. A spring B is fixedly connected to the upper end of the inner cavity of the limit tube. The lower end of the spring B is fixedly connected to the outer ring of the upper end of the guide rod.

9. The nebulized inhalation device for treating pediatric pneumonia according to claim 8, characterized in that: The guide rod has an inner cavity with a lifting rod slidably connected inside the cavity. The lower end of the lifting rod passes through the guide rod and is fixedly connected to a U-shaped plug. The outer surface of the U-shaped plug is in contact with the sealing plug, and the U-shaped plug is positioned above the inlet of the conveying pipe.

10. The nebulized inhalation device for treating pediatric pneumonia according to claim 9, characterized in that: The upper end of the guide rod extends out of the cartridge, and the part extending out of the cartridge has multiple sets of limiting grooves. The upper outer ring of the lifting rod is fixedly connected to multiple sets of protruding strips, and the protruding strips are slidably connected in the limiting grooves of the outer ring of the guide rod. The upper outer ring of the lifting rod is evenly provided with scale strips. The middle of the upper end of the guide rod is rotatably connected to a lead screw. The lower end of the lead screw is threadedly connected to the upper end of the inner cavity of the lifting rod. The upper end of the lead screw extends out of the guide rod and is fixedly connected to a handle.

Images