An intelligent atomization inhalation control device adaptive to children's breathing rhythm

Abstract

This application relates to the field of nebulizer technology and discloses an intelligent nebulizer inhalation control device that adapts to children's respiratory rhythm. The device includes a protective shell, a mouthpiece assembly, and a nebulizer control assembly. A nebulizer shell is fixedly connected to the bottom of the protective shell, and a nebulized medication chamber is fixedly connected inside the nebulizer shell. An air supply assembly for supplying fresh air into the protective shell is located above the protective shell. Through a nebulizer control structure consisting of a fixed slide, a control column with a built-in three-way tube, a conical compression spring with segmented increasing nonlinear stiffness, and an adjusting component, the device can automatically switch airways to adapt to children's respiratory rhythm. During normal inhalation, it stably delivers nebulized medication; during exhalation, it closes the passage to prevent medication dispersion and waste; and during vigorous inhalation, it switches to a fresh air channel and compresses the structure to reduce dead space. This solves the problems of traditional nebulizer devices being difficult to adapt to children's breathing characteristics, having high medication loss, and children easily experiencing shortness of breath during rapid breathing.

Description

Technical Field

[0001] This invention relates to the field of nebulization device technology, specifically to an intelligent nebulization inhalation control device that adapts to children's breathing rhythm. Background Technology

[0002] Nebulized inhalation therapy is a common clinical treatment for respiratory diseases in pediatrics. This therapy can convert liquid medication into fine droplets that act directly on the child's airway, offering advantages such as rapid onset of action and minimal irritation. Children's breathing rhythm and breathing strength differ significantly from adults, and they are also prone to shortness of breath and restlessness due to emotional fluctuations during treatment. This has made nebulization devices adapted to children's physiological characteristics a major research and development direction in related fields.

[0003] Currently, most nebulizers on the market are equipped with a nebulized medication tank, a connected airflow tube, and a bite block for children. They rely on the built-in airflow to deliver the nebulized medication, thus fulfilling the basic function of nebulized drug delivery and meeting the needs of routine treatment.

[0004] Traditional nebulizers cannot adaptively switch airways according to a child's real-time breathing status, making it difficult to match the child's changing breathing rhythm. During the child's exhalation, the medication mist will continuously drift outward, resulting in a large loss of medication. If the child cries or inhales violently, the internal airflow channels of the device cannot be adjusted in time, and the ventilation space is restricted, which can easily lead to discomfort such as shortness of breath in the child. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent nebulized inhalation control device that adapts to children's breathing rhythms. This solves the problem that existing traditional nebulized inhalation devices cannot adapt to children's changing breathing rhythms, resulting in medication leakage and waste, as well as discomfort such as shortness of breath when children inhale vigorously.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent nebulized inhalation control device that adapts to children's breathing rhythm, comprising...

[0007] The protective shell has an atomizing shell fixedly connected to its bottom, an atomizing liquid chamber fixedly connected inside the atomizing shell, and an air supply component for supplying fresh air into the protective shell.

[0008] Mouthpiece assembly, which is mounted on the protective housing, is used for patients to administer medication via inhalation.

[0009] The atomization control assembly includes a fixed slide, a control slide column, and an elastic return element. The fixed slide is fixedly connected to the protective housing and has an air inlet and an atomized drug inlet. The control slide column is slidably connected to the fixed slide, and a guide for limiting the movement of the control slide column is provided on the outside of the control slide column. A three-way pipe is provided inside the control slide column, and the two side pipes in the three-way pipe are arranged in an alternating direction. The elastic return element is fixedly connected to the outside of the control slide column, and an adjustment element for adjusting the initial state of the elastic return element is provided at the end of the elastic return element away from the control slide column.

[0010] The elastic recovery element is a non-uniform pitch conical compression spring. The pitch and diameter of the conical compression spring are set to decrease non-linearly from the large end to the small end along its own axis, so that the elastic recovery element has a progressively increasing non-linear stiffness in segments during axial compression deformation.

[0011] Preferably, the air supply end of the atomized drug chamber is connected to the atomized drug inlet, and the air supply component is connected to the fixed slide through the air inlet.

[0012] Preferably, the air supply assembly includes an internally threaded air inlet pipe, a retaining ring, a filter pad, and a threaded cap. The internally threaded air inlet pipe is fixedly connected to the protective housing, the retaining ring is fixedly connected to the internally threaded air inlet pipe, the filter pad is fitted onto the retaining ring, and the threaded cap is threadedly connected to the internally threaded air inlet pipe. The bottom of the threaded cap is provided with multiple filter holes.

[0013] Preferably, the mouthpiece assembly includes a main air tube, a soft mouthpiece, and an exhaust pipe. The main air tube is detachably connected to the protective housing, the soft mouthpiece is fixedly connected to the main air tube, and the exhaust pipe is fixedly connected to the main air tube. Both the main air tube and the exhaust pipe are fixedly connected to umbrella valves inside.

[0014] Preferably, the guide includes two sets of guide rods, which are set in a fixed slide and fixedly connected to the inner wall of the protective shell. The control slide has two sets of guide grooves that slide through the guide rods.

[0015] Preferably, the adjusting component includes an electric push rod, a power supply compartment, and a connecting plate. The electric push rod is disposed in a fixed slide and fixedly connected to the inner wall of the protective housing. The power supply compartment is fixedly connected to the protective housing. The connecting plate is fixedly connected to the drive end of the electric push rod. The side of the connecting plate away from the electric push rod is fixedly connected to the end of the elastic return component away from the control slide column.

[0016] Preferably, the bottom air inlet of the atomizing liquid chamber is connected to an external atomizing air source device via a pipe that passes through the atomizing shell.

[0017] Preferably, the soft mouthpiece is made of medical-grade liquid silicone material, and its overall shape is a flat hollow cone structure that is narrow at the front and wide at the back. The umbrella valve is made of a high-flexibility medical silicone film in one piece, and the opening pressure of the umbrella valve is set to a physiologically imperceptible threshold. It is used to open the main airway and close the exhaust pipe during the child's inspiratory phase, and to close the main airway and open the exhaust pipe in one direction during the child's expiratory phase.

[0018] Preferably, a limiting ring is fixedly connected inside the fixed slide. The limiting ring forms a protruding axial stop step on the inner wall of the fixed slide. When the control slide is translated and reset away from the adjusting member under the elastic force of the elastic return member, the limiting ring is used to abut against the axial end face of the control slide, thereby accurately limiting the initial normally closed static position of the control slide in the axial direction.

[0019] Preferably, the filter pad is made of medical-grade high-density polyethylene fiber material, and the multi-filter hole arrangement at the bottom of the threaded cap is distributed in a concentric array of equally spaced holes to uniformly rectify the incoming fresh air.

[0020] This invention provides an intelligent nebulized inhalation control device that adapts to children's breathing rhythm. It has the following beneficial effects:

[0021] 1. This invention utilizes a nebulization control structure consisting of a fixed slide, a control slide column with a built-in three-way pipe, a conical compression spring with segmented increasing nonlinear stiffness, and an adjusting component. The device can automatically switch airways to adapt to the child's breathing rhythm. During normal inhalation, it stably delivers nebulized medication; during exhalation, it closes the passage to prevent medication mist from drifting and being wasted; and during vigorous inhalation, it switches to a fresh air channel and compresses the structure to reduce dead space. This solves the problems of traditional nebulization devices being difficult to adapt to the breathing characteristics of children, having high medication loss, and children easily experiencing shortness of breath when breathing rapidly.

[0022] 2. The present invention achieves the effect of filtering and purifying the fresh air entering the device and regulating the airflow through the air supply component. It can effectively intercept various suspended impurities such as dust and bacteria in the air, while slowing down the air intake speed and making the airflow gentle and smooth. This solves the problems of external pollutants entering the child's respiratory tract with the airflow and causing infection, as well as the problem of cold air with excessively fast flow directly irritating the child's delicate airway and causing physical discomfort.

[0023] 3. This invention achieves unidirectional airflow and zoned airflow isolation by using a mouthpiece adapted for children. It ensures normal inhalation of the medicated mist during inhalation and timely expulsion of waste gas during exhalation, while also preventing backflow of waste gas and contamination of the equipment pipeline. At the same time, it significantly reduces the dead space inside the device, solving the problems of hypoxia and rapid breathing caused by repeated inhalation of carbon dioxide during children's nebulization therapy, as well as the contamination of the equipment pipeline by exhaled waste gas. Attached Figure Description

[0024] Figure 1 This is an overall perspective view of the present invention;

[0025] Figure 2 This is a schematic cross-sectional view of the front portion of the present invention;

[0026] Figure 3 This is a schematic diagram showing a cross-sectional view of the front portion of the atomization control component of the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of the front portion of the fixed slide rail of the present invention;

[0028] Figure 5 This is a front cross-sectional view of the control slide of the present invention;

[0029] Figure 6 This is a schematic diagram of the disassembled air supply component of the present invention;

[0030] Figure 7 This is a schematic diagram showing a partial cross-section of the mouthpiece assembly of the present invention.

[0031] The components include: 1. Protective shell; 2. Atomizing shell; 3. Atomizing drug compartment; 4. Air supply assembly; 41. Internally threaded air inlet pipe; 42. Retaining ring; 43. Filter pad; 44. Threaded cap; 5. Biting mouthpiece assembly; 51. Main air pipe; 52. Soft biting mouthpiece; 53. Exhaust pipe; 54. Umbrella valve; 6. Atomization control assembly; 61. Fixed slide; 62. Air inlet; 63. Atomized drug inlet; 64. Limiting ring; 65. Control slide; 66. T-junction pipe; 67. Elastic return component; 7. Adjusting component; 71. Electric push rod; 72. Power supply compartment; 73. Connecting plate; 81. Guide rod; 82. Guide groove. Detailed Implementation

[0032] The technical solutions in 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.

[0033] Example 1:

[0034] Please see Figures 1-5 One embodiment of the present invention provides an intelligent nebulized inhalation control device that adapts to a child's breathing rhythm, comprising a protective shell 1, a mouthpiece assembly 5, and a nebulization control assembly 6.

[0035] The protective shell 1 is made of medical-grade polycarbonate and serves as the external support frame for the entire device. It provides an installation reference for the internal components and forms a closed airflow channel. The bottom of the protective shell 1 is fixedly connected to the atomizing shell 2, which is made of medical-grade polypropylene. The atomizing drug chamber 3 serves as the source of drug aerosol generation. The atomizing drug chamber 3 is fixedly connected inside the atomizing shell 2. The air inlet at the bottom of the atomizing drug chamber 3 is connected to an external atomizing air source device through a pipe that passes through the atomizing shell 2. An air supply component 4 is installed on the top of the protective shell 1 to supply fresh air into the protective shell 1. The air supply component 4 uses a conventional straight pipe to connect to the external environment and provides auxiliary dilution airflow to the inside of the device. The mouthpiece component 5 is installed on the protective shell 1 and is used by the patient to inhale and administer medication. The mouthpiece component 5 uses a medical-grade silicone soft sleeve structure, and the patient can directly hold the mouthpiece component 5 in their mouth for atomized inhalation therapy, forming a direct physical connection hub between the child's respiratory system and the control device.

[0036] The atomization control component 6 includes a fixed slide 61, a control slide 65, and an elastic return element 67. The fixed slide 61 is fixedly connected to the protective housing 1. An air inlet 62 and an atomized drug inlet 63 are provided on the wall of the fixed slide 61. The air supply end of the atomized drug chamber 3 is connected to the atomized drug inlet 63 through a pipe. The interior of the air supply component 4 is connected to the interior of the fixed slide 61 through the air inlet 62. The control slide 65 is slidably connected in the fixed slide 61. The outer circumferential surface of the control slide 65 and the inner circumferential surface of the fixed slide 61 are fitted with a micron-level sliding clearance, which ensures both smooth linear sliding response and gas tightness between the two cylindrical surfaces to prevent axial leakage of the drug mist. It also serves as a physical feedback valve in response to respiratory negative pressure. The core, with a preset aerodynamic air-facing area at the end facing the mouthpiece assembly 5, is used to efficiently convert the child's weak inhalation negative pressure into axial sliding driving force. The interior of the fixed slide 61 forms a cylindrical hollow slide cavity, which provides a low-friction geometric track for the linear translation of the control slide 65. The outer side of the control slide 65 is provided with a guide to limit the movement of the control slide 65. The interior of the control slide 65 is provided with a three-way pipe 66, and the two side pipes in the three-way pipe 66 are arranged in an interlaced direction. The axial distance between the two side pipes is adapted to the axial displacement difference between the air inlet 62 and the nebulized drug inlet 63 on the fixed slide 61, which is used to switch the connection to the air inlet 62 or the nebulized drug inlet 63 when the control slide 65 is in different sliding positions.

[0037] When the control slide 65 moves to the middle stroke position under normal inhalation negative pressure, the corresponding side pipe in the three-way pipe 66 is exactly coaxially aligned with the nebulized drug inlet 63 and is fully connected. When the control slide 65 moves to the limit stroke position under intense inhalation negative pressure, the corresponding side pipe is completely offset and the nebulized drug inlet 63 is sealed by the solid wall of the control slide 65. At the same time, the other side pipe in the three-way pipe 66 is completely coaxially aligned with the air inlet 62 and is connected.

[0038] The elastic return element 67 is fixedly connected to the outside of the control slide column 65 and is arranged coaxially with the control slide column 65. An adjusting element 7 is provided at the end of the elastic return element 67 away from the control slide column 65 for adjusting the initial state of the elastic return element 67. The elastic return element 67 provides a constant axial reset bias force to the control slide column 65 in the axial direction. A limit ring 64 is fixedly connected inside the fixed slide rail 61. The limit ring 64 forms a protruding axial stop step on the inner wall surface of the fixed slide rail 61. When the control slide column 65 is in the elastic return element 67... When the device moves away from the adjusting member 7 and resets under the elastic drive, the limiting ring 64 abuts against the axial end face of the control slide 65, thereby precisely limiting the initial normally closed static position of the control slide 65 axially. Under the axial stop constraint of the limiting ring 64, the outer circumferential surface of the control slide 65 in the initial normally closed static position just completely covers and seals the air inlet 62 and the atomized drug inlet 63 on the fixed slide 61 at the same time, so that the entire device is in a physically blocked drug mist leakage and dustproof normally closed state when not inhaling air.

[0039] The elastic recovery element 67 is a non-equidistant pitch conical compression spring. Structurally, the elastic recovery element 67 has a large coil end and a small coil end that are connected to each other. The winding pitch and coil diameter of the elastic recovery element 67 are set to decrease non-linearly from the large end to the small end along the axial direction of the elastic recovery element 67, so that the elastic recovery element 67 has a piecewise increasing progressive non-linear stiffness curve during axial compression deformation.

[0040] Specifically, the elastic recovery element 67 is axially divided into a first characteristic deformation zone and a second characteristic deformation zone with different stiffness characteristics, used to provide multi-level mechanical gradient feedback for different respiratory phase states of the child: In the first characteristic deformation zone near the large coil end, due to the large coil diameter and pitch, the elastic recovery element 67 naturally has extremely low first starting stiffness, specifically designed for highly sensitive response to the weak low negative pressure generated during the child's normal inspiration, ensuring that the control slide 65 can smoothly start axially and accurately stop at the drug delivery stroke position; in the second characteristic deformation zone near the small coil end, due to the large coil diameter and pitch, the elastic recovery element 67 naturally has extremely low first starting stiffness, specifically designed for highly sensitive response to the weak low negative pressure generated during the child's normal inspiration, ensuring that the control slide 65 can smoothly start axially and accurately stop at the drug delivery stroke position; As the distance decreases abruptly and the diameter narrows nonlinearly, the stiffness of the elastic recovery element 67 instantly surges to a second limit stiffness far exceeding the first starting stiffness. This forms a purely mechanical resistance wall at the critical point where the first characteristic deformation zone is fully compressed. This wall is used to axially limit and self-lock the control slide 65 under normal breathing conditions, preventing the control slide 65 from accidentally overshooting. Only when the child cries and generates a severe inspiratory negative pressure exceeding the safety threshold can the axial thrust generated by the severe inspiratory negative pressure further forcibly overcome the second limit stiffness and drive the control slide 65 to continue forward to the limit flow-limiting displacement stroke.

[0041] In addition, the elastic recovery element 67 has the characteristic of extreme space nesting. When the control slide 65 moves to the extreme stroke position under the strong inhalation negative pressure, the layers of the elastic recovery element 67 can be nested in the radial direction from large to small without collision, so that the elastic recovery element 67 is compressed and flattened as a whole. At this time, the extreme compression thickness of the elastic recovery element 67 in the axial direction is close to one times the diameter of the steel wire. Thus, in a purely mechanical way, in conjunction with the axial limit of the control slide 65, the deformation dead space volume of the internal cavity is compressed to the physical limit, reducing the safety hazard of carbon dioxide reabsorption in children.

[0042] The guide includes two sets of guide rods 81, which are set in the fixed slide rail 61 and fixedly connected to the inner wall of the protective shell 1. The control slide column 65 has two sets of guide grooves 82 that slide through the guide rods 81. The mutual sliding cooperation between the two sets of guide rods 81 and the guide grooves 82 restricts the circumferential rotational freedom of the control slide column 65, ensuring that the three-way pipe 66 can always be accurately aligned with the air inlet when sliding back and forth.

[0043] The adjusting component 7 includes an electric push rod 71, a power supply compartment 72, and a connecting plate 73. The electric push rod 71 is set in the fixed slide rail 61 and fixedly connected to the inner wall of the protective shell 1. The power supply compartment 72 is fixedly connected to the protective shell 1, providing independent power supply for the electric push rod 71. The electric push rod 71 is a miniature high-precision linear push rod, specifically a miniature stepper linear motor (such as the NEMA8 series miniature derivative model) with an outer diameter of 12 mm, a rated stroke of 10 mm, and a control accuracy of 0.1 mm. The power supply compartment 72 encapsulates a 7.4V medical-grade polymer rechargeable lithium battery pack and a precision motor drive control motherboard, providing independent power supply and electrical drive signals for the electric push rod 71. The connecting plate 73 is fixedly connected to the drive end of the electric push rod 71. The side of the connecting plate 73 away from the electric push rod 71 is fixedly connected to the end of the elastic return member 67 away from the control slide column 65, realizing the direct conversion of the mechanical displacement of the electric push rod 71 into the adjustment of the initial preload of the elastic return member 67.

[0044] Working Principle: Before using the intelligent nebulized inhalation control device that adapts to children's breathing rhythm, medical staff first send digital control commands to the power supply compartment 72 through an external controller based on the child's age and vital capacity. In terms of coordination, the motor drive control motherboard inside the power supply compartment 72 converts the digital control commands into high-precision pulse signals, and transmits the pulse signals and 7.4V drive voltage synchronously to the electric push rod 71 through internal wires. After receiving the pulse signal, the micro stepper motor inside the electric push rod 71 rotates, driving the internal micro lead screw to produce millimeter-level precision linear displacement. The electric push rod 71 drives the connecting plate 73 to move horizontally, thereby adjusting the initial preload of the elastic return element 67. Since the elastic return element 67 is a non-uniform pitch conical compression spring, it has segmented increasing nonlinear stiffness. Combined with the 0.1 mm displacement accuracy of the electric push rod 71, it can accurately match the breathing intensity of children of different ages and complete the stepless adaptive setting of the pure mechanical resistance threshold.

[0045] After the parameters are adjusted, the child takes the mouthpiece assembly 5 into their mouth and inhales normally. The slight negative pressure generated by the inhalation acts on the control slide column 65. The control slide column 65 overcomes the small elastic force of the elastic return element 67 in the initial stage and slides horizontally along the fixed slide 61 and the guide rod 81 towards the mouthpiece assembly 5. At this time, the three-way tube 66 inside the control slide column 65 is aligned and connected with the nebulized drug inlet 63. The concentrated drug mist generated in the nebulized drug chamber 3 enters the protective shell 1 along the nebulized drug inlet 63 and the three-way tube 66, and is finally smoothly inhaled by the child.

[0046] When the child stops inhaling or enters the exhalation phase, the negative pressure in the oral cavity disappears, and the elastic return element 67 releases the accumulated mechanical elasticity, pushing the control slide 65 to move in the opposite direction away from the mouthpiece assembly 5 and reset. The end face of the control slide 65 abuts against the limiting ring 64 and stops moving. At this time, the solid side wall of the control slide 65 completely seals the nebulized drug inlet 63, locking the continuously generated nebulized drug solution in the nebulized drug solution chamber 3, preventing the drug solution from drifting into the air and being wasted.

[0047] If the child cries or inhales rapidly during nebulization, a huge negative pressure will be generated in the oral cavity. This huge negative pressure will force the control slide 65 to continue moving forward significantly. At this time, the control slide 65 will begin to compress the rear half of the elastic return element 67, which has a smaller diameter and extremely high rigidity. With the extreme displacement of the control slide 65, the three-way tube 66 will be fully connected to the air inlet 62 at the top, while the nebulized drug inlet 63 at the bottom will be staggered and closed. Fresh air from the outside will rush into the channel through the air supply component 4. On the one hand, this will dynamically dilute the high concentration of drug mist, and on the other hand, it will provide sufficient airflow compensation for the child, reducing and eliminating the risk of suffocation and asphyxiation caused by the child's rapid inhalation and obstructed channel.

[0048] Example 2:

[0049] Please see Figures 3-6 The difference between Embodiment 2 and Embodiment 1 is that a different air supply component 4 is used. The air supply component 4 includes an internally threaded air inlet pipe 41, a fixing ring 42, a filter pad 43, and a threaded cap 44. The internally threaded air inlet pipe 41 is fixedly connected to the protective shell 1, serving as the initial guide channel for external air to enter. The fixing ring 42 is fixedly connected to the internally threaded air inlet pipe 41. The filter pad 43 is fitted onto the fixing ring 42, acting as a physical barrier to intercept dust and suspended particles. The threaded cap 44 is threadedly connected to the internally threaded air inlet pipe 41. The bottom of the threaded cap 44 is arranged in a multi-pore pattern. The filter pad 43 is made of medical-grade high-density polyethylene fiber. The multi-pore pattern at the bottom of the threaded cap 44 is arranged in a concentric array of equally spaced holes, which is used to uniformly rectify the incoming fresh air and firmly press the filter pad 43 onto the fixing ring 42 to form a sealed combination.

[0050] Beneficial effects of Example 2:

[0051] Based on Example 1, the conventional straight pipe connection to the external environment is replaced with the standard air supply component 4. When faced with situations requiring the introduction of a large amount of fresh air for dilution and replenishment, a filter pad 43 made of medical-grade high-density polyethylene fiber is added to the air supply component 4. This allows the device to perform deep physical purification of the incoming fresh air, effectively intercepting suspended particles such as dust and bacteria in the air. This prevents external impurities from entering the respiratory tract along with the replenishment airflow when the child inhales violently, thus preventing the risk of cross-infection or secondary infection. At the same time, the multiple filter holes arranged in a concentric array at equal intervals at the bottom of the threaded cap 44 can achieve a uniform and rectified fluid dynamic effect on the rapidly incoming airflow, making the fresh airflow entering the fixed slide 61 smoother and gentler, and significantly reducing the physical irritation caused by the direct impact of unwarmed cold air on the child's sensitive airway.

[0052] Example 3:

[0053] Please see Figure 1 , Figure 2 and Figure 7 The difference between Embodiment 3 and Embodiment 1 lies in the replacement of a different mouthpiece assembly 5. The mouthpiece assembly 5 includes a main air tube 51, a soft mouthpiece 52, and an exhaust pipe 53. The main air tube 51 is detachably connected to the protective shell 1, serving as the main channel connecting the device body and the oral cavity. The soft mouthpiece 52 is fixedly connected to the main air tube 51. The soft mouthpiece 52 is made of medical-grade liquid silicone and has a flat, hollow cone structure that is narrower at the front and wider at the back, better conforming to the physiological curve of a child's oral cavity and ensuring airtightness when biting. The exhaust pipe... 53 is fixedly connected to the main airway 51, and a very short exhaust gas branch is specially constructed. Both the main airway 51 and the exhaust gas exhaust pipe 53 are fixedly connected to umbrella valves 54. The umbrella valves 54 are made of a high-flexibility medical silicone film in one piece, and the opening pressure of the umbrella valves 54 is set to a physiologically imperceptible threshold. It is used to open the main airway 51 and close the exhaust gas exhaust pipe 53 during the child's inspiratory phase, and to close the main airway 51 and open the exhaust gas exhaust pipe 53 in one direction during the child's expiratory phase, so as to achieve absolute isolation of the inspiratory and expiratory airflows in physical space.

[0054] Beneficial effects of Example 3:

[0055] Based on Example 1, during a nebulized inhalation therapy cycle, the mouthpiece assembly 5 is designed as a three-way diversion structure combining the main airway 51 and the exhaust pipe 53. Both the main airway 51 and the exhaust pipe 53 have built-in umbrella-shaped valves 54 with extremely low opening pressure. This intelligent nebulized inhalation control device, adaptive to the child's respiratory rhythm, constructs a perfect one-way breathing interlock airway. When the child inhales, the negative pressure in the oral cavity precisely opens the umbrella-shaped valve 54 in the main airway 51, while the external atmospheric pressure tightly seals the umbrella-shaped valve 54 in the exhaust pipe 53, ensuring that the child inhales 100% of the air from the exhaust pipe 53. The pure drug mist inside the protective shell 1 instantly seals the umbrella valve 54 in the main airway 51 when the child exhales due to the positive pressure of the exhaled air. This reduces the possibility of water vapor in the exhaust gas flowing back into the atomization control component 6 and contaminating the pipeline. At the same time, the positive pressure opens the umbrella valve 54 in the exhaust pipe 53, allowing the exhaust gas containing a high concentration of carbon dioxide to be directly discharged into the outside atmosphere in situ. This three-way diversion exhaust design, which is close to the oral cavity, compresses the dead space volume at the front of the device to an extremely low physical limit, fundamentally reducing the risk of hypoxia and rapid breathing caused by repeated inhalation of carbon dioxide by infants and young patients.

[0056] 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. An intelligent nebulization inhalation control device that adapts to the breathing rhythm of children, characterized in that, include A protective shell (1) is fixedly connected to the bottom of the protective shell (1), and an atomizing shell (2) is fixedly connected to the inside of the atomizing shell (2). An air supply component (4) for supplying fresh air into the protective shell (1) is provided above the protective shell (1). Mouthpiece assembly (5), which is disposed on the protective housing (1) and is used for the patient to administer medication by inhalation; The atomization control assembly (6) includes a fixed slide (61), a control slide (65), and an elastic recovery member (67). The fixed slide (61) is fixedly connected to the protective shell (1). An air inlet (62) and an atomized drug inlet (63) are provided on the fixed slide (61). The control slide (65) is slidably connected to the fixed slide (61). A guide for limiting the movement of the control slide (65) is provided on the outside of the control slide (65). A three-way pipe (66) is provided inside the control slide (65). The two side pipes in the three-way pipe (66) are arranged in an alternating direction. The elastic recovery member (67) is fixedly connected to the outside of the control slide (65). An adjustment member (7) for adjusting the initial state of the elastic recovery member (67) is provided at the end of the elastic recovery member (67) away from the control slide (65). The elastic recovery element (67) is a non-equidistant pitch conical compression spring. The pitch and diameter of the conical compression spring are set to decrease non-linearly from the large end to the small end along its own axial direction, so that the elastic recovery element (67) has a progressively increasing non-linear stiffness in segments during axial compression deformation.

2. The intelligent nebulization inhalation control device that self-adapts child breathing rhythm according to claim 1, characterized in that, The air supply end of the atomized drug chamber (3) is connected to the atomized drug inlet (63), and the air supply component (4) is connected to the fixed slide (61) through the air inlet (62).

3. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 1, characterized in that, The air supply assembly (4) includes an internally threaded air inlet pipe (41), a retaining ring (42), a filter pad (43), and a threaded cap (44). The internally threaded air inlet pipe (41) is fixedly connected to the protective housing (1). The retaining ring (42) is fixedly connected to the internally threaded air inlet pipe (41). The filter pad (43) is fitted onto the retaining ring (42). The threaded cap (44) is threadedly connected to the internally threaded air inlet pipe (41). The bottom of the threaded cap (44) is arranged in a multi-filter hole shape.

4. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 1, characterized in that, The mouthpiece assembly (5) includes a main air tube (51), a soft mouthpiece (52), and an exhaust pipe (53). The main air tube (51) is detachably connected to the protective shell (1). The soft mouthpiece (52) is fixedly connected to the main air tube (51). The exhaust pipe (53) is fixedly connected to the main air tube (51). Both the main air tube (51) and the exhaust pipe (53) are fixedly connected to umbrella valves (54).

5. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 1, characterized in that, The guide includes two sets of guide rods (81), which are set in the fixed slide (61) and are fixedly connected to the inner wall of the protective shell (1). The control slide (65) has two sets of guide grooves (82) that slide through the guide rods (81).

6. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 1, characterized in that, The adjusting component (7) includes an electric push rod (71), a power supply compartment (72), and a connecting plate (73). The electric push rod (71) is disposed in a fixed slide rail (61) and fixedly connected to the inner wall of the protective shell (1). The power supply compartment (72) is fixedly connected to the protective shell (1). The connecting plate (73) is fixedly connected to the driving end of the electric push rod (71). The side of the connecting plate (73) away from the electric push rod (71) is fixedly connected to the end of the elastic return component (67) away from the control slide column (65).

7. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 1, characterized in that, The bottom air inlet of the atomizing liquid chamber (3) is connected to an external atomizing air source device through a pipe passing through the atomizing shell (2).

8. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 4, characterized in that, The soft mouthpiece (52) is made of medical-grade liquid silicone material and has a flat hollow cone structure that is narrow in the front and wide in the back. The umbrella valve (54) is made of a high-flexibility medical silicone film. The opening pressure of the umbrella valve (54) is set to the physiological non-sensory threshold. It is used to open the main airway (51) and close the exhaust pipe (53) during the child's inspiratory phase, and to close the main airway (51) and open the exhaust pipe (53) in one direction during the child's expiratory phase.

9. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 1, characterized in that, The fixed slide (61) is internally fixedly connected to a limiting ring (64). The limiting ring (64) forms a protruding axial stop step on the inner wall surface of the fixed slide (61). When the control slide (65) is translated and reset away from the adjusting member (7) under the elastic force of the elastic return member (67), the limiting ring (64) is used to abut against the axial end face of the control slide (65), thereby accurately limiting the initial normally closed static position of the control slide (65) axially.

10. The intelligent nebulized inhalation control device for adaptive pediatric respiratory rhythm according to claim 3, characterized in that, The filter pad (43) is made of medical-grade high-density polyethylene fiber. The threaded cap (44) has multiple filter holes at the bottom arranged in a concentric array of equally spaced holes to uniformly rectify the incoming fresh air.

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