A continuous dosing dry powder inhalation device

Abstract

The utility model provides a kind of dry powder inhalation device of continuous dosing, comprising: storage capsule device and inhaler, the outer edge of storage capsule device is provided with outlet capsule mouth, and outlet capsule mouth is communicated with inhaler;The inside of storage capsule device is provided with rotatable capsule disc, and multiple capsules are uniformly distributed on capsule disc along circumferential direction, and the bottom surface of capsule disc is coaxially connected with rotation driving part, and the inside of outlet capsule mouth is fixedly provided with pusher for pushing capsule from capsule disc down.The utility model structure is simple and reasonable, and strong in integrity, and the storage capsule device that multiple capsules can be stored is designed and connected to inhaler, and capsule disc is rotated by coiled spring inside storage capsule device, and multiple capsules are pushed to inhaler by pusher, which can automatically and continuously provide dry powder medicine for patient, reduce the complexity of operation of patient, effectively improve the accuracy of medicine inhalation dose and the convenience of medicine use;Patient only needs normal breathing to complete medicine inhalation, reduce operation step, improve the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of inhalation drug delivery device technology, and more specifically, to a dry powder inhalation device for continuous drug delivery. Background Technology

[0002] Dry powder inhalers are currently the most commonly used inhalation devices. These devices are typically used in the drug treatment of respiratory and pulmonary diseases as well as neurological diseases. The biggest advantage of inhalation therapy is that patients experience rapid therapeutic effects after inhaling the medication. With continuous improvements in inhalation devices, inhalation therapy not only enhances the convenience of medication administration for patients but also provides better efficacy, a higher therapeutic index, and better clinical safety.

[0003] Currently, commonly used dry powder inhalation devices in clinical practice are mainly divided into several types, including single-dose capsule type, multi-dose reservoir type, and multi-dose vesicle type. However, these existing dry powder inhalation devices have the following drawbacks: 1. Single-dose capsule inhalation devices are complicated to use. For example, it requires inserting the capsule into the device, puncturing the capsule, and providing sufficient inhalation volume, which poses a significant challenge for elderly patients or people with poor hand dexterity.

[0004] 2. Multi-dose reservoir-type inhalation devices have a complex structure, making it difficult to ensure accurate dosing and determine the remaining dose.

[0005] 3. Multi-dose vesicle inhalation devices have complex mechanical structures and are expensive. Moreover, the vesicles need to be discarded after each use, which increases the pressure on environmental protection. Utility Model Content

[0006] Therefore, the purpose of this utility model is to provide a continuous dry powder inhalation device, which is designed to store multiple capsules and connect to the inhaler. The capsule disc is rotated by a coiled spring inside the capsule, and the paddle pushes multiple capsules to the inhaler. This device can automatically and continuously provide dry powder medication to the patient, reduce the complexity of patient operation, and improve the accuracy of drug inhalation dosage and the convenience of medication use.

[0007] This invention provides a continuous drug delivery dry powder inhalation device, comprising: a reservoir and an inhaler; the reservoir has an outlet on its outer edge, which communicates with the inhaler; the reservoir has a rotatable capsule disc inside, on which multiple capsules are evenly distributed along the circumference; a rotation drive is coaxially connected to the bottom surface of the capsule disc; and a pry bar for removing capsules from the capsule disc is fixedly disposed on the inner side of the outlet.

[0008] Preferably, the rotary drive component is a rotatable coiled spring. Coiled springs (including clockwork springs, truncated spiral springs, etc.) have the characteristics of efficient energy storage, precise control, and shock absorption, and are suitable for the rotary drive of the capsule disk in this solution.

[0009] Specifically, the capsule is placed in a slot on the capsule tray. When the capsule tray rotates and moves the capsule, the paddle can contact the capsule and remove the capsule from the capsule tray.

[0010] The reservoir can hold multiple drug capsules for multi-dose storage. The reservoir outlet connects to the inhaler, maintaining the fluidity of the dry drug powder. Continuous capsule delivery is achieved through a rotating drive and a lever, ensuring efficient drug delivery and effective dispersion of drug particles into an aerosol by the inhaled airflow, thus improving lung deposition rate (ideally, particles smaller than 5 micrometers, with minimal oropharyngeal deposition).

[0011] Furthermore, a blocking member is provided on the outer side of the capsule outlet to prevent the capsule from popping out, and a spring hinge is provided on the top of the capsule outlet, with the blocking member connected to the capsule outlet via the spring hinge.

[0012] Preferably, the blocking component is a baffle. The elastic properties of the spring hinge allow the blocking component to automatically reset, ensuring that only one capsule is released at a time, avoiding jamming or disorder caused by multiple capsules falling simultaneously. The timely reset of the blocking component after capsule release prevents subsequent capsules from accidentally popping out or being impacted by external forces, reducing the risk of capsule breakage and protecting capsule integrity. Automatic blocking achieved through a simple mechanical structure (spring hinge) effectively improves the accuracy of capsule filling and the efficiency of the equipment.

[0013] Furthermore, the inhaler is provided with a housing, which is a hollow cylindrical structure, and the side surface of the housing is provided with an inlet, and the outlet can be embedded in the inlet.

[0014] Specifically, when the outlet is inserted into the inlet, the shield opens and contacts the inside of the inlet, forming a direct drug delivery channel. This optimizes the drug particle delivery path, reduces drug diffusion and loss during delivery, and thus improves drug delivery efficiency. Furthermore, the precise alignment of the outlet and inlet simplifies the inhaler's operation, helping users complete drug loading or inhalation preparation steps more quickly and accurately, improving ease of use and enhancing the user experience.

[0015] The hollow cylindrical structure itself possesses good mechanical stability, while the embeddable inlet design further enhances the connection strength between the various components of the shell. This design ensures the stability of the inhaler structure during operation and reduces the risk of structural damage due to accidental impacts.

[0016] The hollow cylindrical structure, combined with the embeddable inlet design, allows for more efficient use of internal space, making the overall structure of the inhaler more compact, easy to carry and use.

[0017] Furthermore, a suction nozzle is provided on the top of the housing, and a screen and a needle are arranged sequentially at the bottom of the suction nozzle; an electric push rod is provided at the bottom of the housing, and a reservoir is connected to the top of the electric push rod. The pushing direction of the electric push rod is towards the needle, and the reservoir is a hollow cylindrical structure with an opening at one end facing the needle.

[0018] Specifically, the reservoir can hold a single capsule, and it slides relative to the housing under the action of an electric actuator. The precise control of the electric actuator ensures stable and controllable upward movement of the reservoir, thereby guaranteeing accurate and consistent puncture of the drug vesicle by the needle, improving the precision and repeatability of drug release. The automation of the electric actuator simplifies the operation process and enhances ease of use, allowing users to release the drug without manual intervention, reducing operational difficulty and making it particularly suitable for elderly patients or people with mobility impairments.

[0019] The design of the electric actuator integrated with the housing (such as by fixing it with connectors) can enhance the stability of the overall structure, ensuring that the device remains stable during drug delivery and preventing the drug release effect from being affected by shaking or tipping.

[0020] Furthermore, a discard port is provided on the side surface of the housing opposite to the inlet port, and through holes are provided on both sides of the storage tank. When the electric push rod is not in operation, the channel of the through hole is flush with the inlet port and the discard port.

[0021] When vesicles in the storage tank need to be discarded, the electric push rod retracts, aligning the through-hole with the discard port. The vesicles can then be discharged through the through-hole from the discard port, achieving automatic material disposal. The discard port can promptly discharge defective or residual vesicles, preventing material accumulation in the storage tank from affecting subsequent feeding accuracy and avoiding material buildup.

[0022] The alignment of the through-hole with the inlet / outlet is controlled by the extension and retraction of the electric push rod, forming a mechanical linkage that simplifies the operation process and improves the reliability of the equipment. Furthermore, a control unit and a display screen are also provided on the side surface of the housing, and the electric push rod, the display screen and the control unit are electrically connected.

[0023] Preferably, the display screen is positioned below the control unit.

[0024] The control unit centrally manages the operation of the electric linear actuator and the display screen. Users can precisely adjust the electric linear actuator (such as stroke and speed) through the control unit, improving operational convenience and efficiency. Simultaneously, the display screen provides real-time feedback on the actuator status or relevant data, eliminating the need for additional equipment, greatly simplifying the operation process and improving work efficiency. The electric linear actuator, display screen, and control unit can work collaboratively to achieve automated control, data interaction, and intelligent adjustment (such as automatically adjusting the actuator position based on sensor data), enhancing the equipment's intelligence level.

[0025] By implementing closed-loop control of the electric push rod through the control unit (such as by combining encoder feedback), the stop position and trajectory of the push rod can be precisely controlled, avoiding errors from manual adjustment, improving adjustment accuracy, and ensuring a uniform and stable dosage of medication inhaled each time. Simultaneously, the electrical signal transmission is less susceptible to interference, ensuring stable execution of commands and reducing operational errors caused by signal delays or distortion. The display screen can directly show the real-time position, operating status, or fault information of the actuator. Users can monitor and adjust the actuator motor's operating status (such as stroke and speed) in real time through the display screen, obtaining key data without relying on external equipment. Combined with the control unit's operating interface (such as touch screen and buttons), users can more intuitively and efficiently complete parameter settings and equipment monitoring, achieving precise control and improving user work efficiency and comfort.

[0026] Preferably, when the electric actuator malfunctions, the control unit can quickly locate the fault type (such as overload, synchronization abnormality, etc.) through the display screen and guide the user to troubleshoot, reducing maintenance difficulty and downtime.

[0027] Furthermore, the bottom of the electric push rod is provided with a push rod motor and a battery compartment, and the battery compartment is electrically connected to the push rod motor, the control unit, and the display screen respectively.

[0028] The integrated battery compartment allows the device to operate without relying on an external power source, greatly improving its portability and flexibility in application scenarios. It is particularly suitable for environments requiring mobile operation, such as adjusting medical equipment. As a centralized power supply unit, the battery compartment provides a stable and consistent power supply to the actuator motor, control unit, and display screen, reducing instability or malfunctions caused by power fluctuations, thus helping to extend the device's lifespan and improve overall reliability.

[0029] By connecting the battery compartment, actuator motor, control unit, and display screen via electrical signals, a highly integrated system architecture is achieved. This not only reduces the complexity of external wiring but also simplifies the operation process. The battery-powered nature makes it advantageous in scenarios without a fixed power source. Centralized power supply to the battery compartment and its electrical signal connection to the actuator motor, control unit, and display screen improves the device's portability, ease of operation, system stability, and high integration, making it suitable for dry powder inhalation drug delivery applications requiring high precision.

[0030] Furthermore, two arc-shaped baffles are provided inside the channel of the storage sac near the sac outlet, with a gap between the two baffles.

[0031] The gap between the two arc-shaped baffles allows for precise control of the material flow (such as bags), ensuring stable and controllable material flow and preventing large amounts of material from flooding the disposal port at once. This is particularly suitable for applications requiring step-by-step processing or positioning. The arc-shaped baffles guide the material along a predetermined path to the disposal port. Simultaneously, the arc-shaped structure reduces friction between the material and the channel wall, lowering the risk of jamming. The gap's constraint further ensures the accuracy of material movement. The baffle design also prevents material from shifting or detaching during movement, especially when the base moves or vibrates, effectively preventing material from leaving its predetermined position due to inertia, thus improving the overall reliability of the device.

[0032] This structural design achieves complex material control functions through a simple combination of baffles and gaps. By providing precise guidance, stable control, and a simplified structure, it effectively improves the performance and adaptability of the material handling and transfer device. This combination of baffles and gaps eliminates the need for additional complex mechanical structures, simplifying device design and reducing manufacturing costs and maintenance difficulty.

[0033] Preferably, the gap between the two baffles is adjustable, which can flexibly adapt to materials of different sizes or shapes, enhancing the versatility and flexibility of the device.

[0034] Furthermore, the paddle has a crescent-shaped structure, with the concave surface of the crescent-shaped structure facing the capsule.

[0035] The crescent-shaped paddle has its concave surface facing the capsule, and its arc-shaped structure better conforms to the capsule surface, forming a natural guide channel. When the capsule moves to this position, the concave surface of the paddle guides the capsule along a predetermined path to the disposal port, reducing the risk of deviation or jamming. The concave design makes the contact area between the paddle and the capsule more concentrated, and the arc-shaped surface can disperse the contact pressure, thereby reducing the frictional resistance during capsule movement and avoiding capsule breakage or obstruction due to excessive friction. The concave surface of the paddle can fine-tune the axial and radial position of the capsule, precisely controlling the capsule's posture and ensuring that the capsule enters the disposal port in the correct posture. For example, it prevents the capsule from tilting or flipping, ensuring the accuracy of subsequent processing. The crescent-shaped paddle achieves guiding, limiting, and posture control functions through a single structure, eliminating the need for complex mechanical devices. This simplifies the design of the capsule storage tank and improves long-term operational stability, resulting in a simple and highly reliable structure. This paddle shape design, through the guiding, friction-reducing, and posture control functions of the concave paddle, significantly improves the smoothness and positioning accuracy of the capsule during the disposal process, while also ensuring structural simplicity and reliability.

[0036] Preferably, the curvature of the concave surface of the paddle can be optimized according to common capsule sizes. Through elastic materials or adjustable structures, it can be compatible with a certain range of capsule specifications, adapt to capsules of different sizes, and improve the versatility of the device.

[0037] Furthermore, a moisture-proof chamber is provided around the interior perimeter of the reservoir, and a moisture-proof agent block is provided inside the moisture-proof chamber.

[0038] The desiccant blocks inside the moisture-proof chamber continuously absorb moisture from the internal environment of the capsule container, maintaining humidity within a set safe range. This effectively prevents stored materials (such as capsule contents) from becoming moldy or deteriorating due to moisture. This design achieves its moisture-proof function through the physical placement of the desiccant. The structure is relatively simple, without complex mechanical or electronic systems, making it easy to implement and convenient for maintenance and replacement of the desiccant blocks. Through these built-in moisture-proof measures, the capsule container can resist the effects of external humidity changes to a certain extent, maintaining internal dryness under various climatic conditions and improving its performance and reliability in diverse environments. This design, combining a moisture-proof chamber with desiccant blocks, achieves effective control of internal humidity in the capsule container at a low cost and with a simple structure, providing excellent moisture-proof and anti-condensation effects.

[0039] The diameter of the reservoir of this invention is preferably 6–12 cm, and the thickness is preferably 1–3 cm; the diameter of the capsule disc depends on the size of the reservoir. The diameter of the inhaler is 1 cm, and the height is 13 cm. The inner diameter of the reservoir groove is preferably 0.8–1.1 cm, and the height is preferably 1.5–3.0 cm. The height of the electric push rod is preferably 5–15 cm, the advancement time is preferably 0.1–1.5 s, and the retraction time is preferably 0.1–1.5 s. The aperture of the screen is preferably 200–800 μm; the length of the needle is preferably 1–4 mm.

[0040] The dry powder inhalation device of this invention is reusable and does not produce harmful packaging materials during use, thus reducing the pressure on the environment. The device can record the amount of medication consumed and remind the patient to replace the medication reservoir when necessary.

[0041] Compared with the prior art, the beneficial effects of the continuous drug delivery dry powder inhalation device of this invention are as follows: The continuous-dose dry powder inhalation device provided by this utility model has a simple and reasonable structure with strong overall integrity. It is designed to store multiple capsules in a reservoir connected to the inhaler. The capsule disc rotates through a coiled spring inside the reservoir, and a paddle delivers multiple capsules to the inhaler. It can automatically and continuously provide dry powder medication to the patient, reducing the complexity of patient operation and effectively improving the accuracy of drug inhalation dosage and the convenience of medication use. Patients only need to breathe normally to complete drug inhalation, reducing operation steps and improving ease of use. Attached Figure Description

[0042] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the external structure of the continuous drug delivery dry powder inhalation device according to an embodiment of the present invention.

[0043] Figure 2 This is an exploded view of the components of the continuous drug delivery dry powder inhalation device according to an embodiment of the present invention. Figure 3 This is a cross-sectional view of a continuous-dose dry powder inhalation device according to an embodiment of the present invention. Figure 4 This is an enlarged schematic diagram of the reservoir groove according to an embodiment of the present invention. Figure 5 This is an enlarged schematic diagram of the electric actuator according to an embodiment of the present invention.

[0044] The markings in the attached figure are as follows: 1. Inhaler; 2. Mouthpiece; 3. Discard port; 4. Inlet port; 5. Controller; 6. Display screen; 7. Baffle; 8. Outlet port; 9. Reservoir; 10. Shell; 11. Screen; 12. Needle; 13. Reservoir slot; 14. Paddle; 15. Electric push rod; 16. Capsule disc; 17. Capsule; 18. Coil spring; 19. Moisture chamber; 20. Baffle; 21. Rod body; 22. Push rod motor; 23. Battery compartment. Detailed Implementation

[0045] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] In the description of this utility model, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings: This invention provides a continuous drug delivery dry powder inhalation device, such as... Figure 1 As shown, it includes: a reservoir 9 and an inhaler 1. An outlet 8 is provided on the outer edge of the reservoir 9, and the outlet 8 communicates with the inhaler 1; as... Figure 2As shown, the reservoir 9 has a rotatable capsule disc 16 inside, on which multiple capsules 17 are evenly distributed along the circumference. A coiled spring 18 is coaxially connected to the bottom surface of the capsule disc 16, and a paddle 14 for removing the capsules 17 from the capsule disc 16 is fixedly installed on the inner side of the capsule outlet 8. The coiled spring 18 has the characteristics of efficient energy storage, precise control, and shock absorption. The capsules 17 are placed in slots on the capsule disc 16. When the capsule disc 16 rotates and moves the capsules 17, the paddle 14 can contact the capsules 17 and remove them from the capsule disc 16. The reservoir 9 can hold multiple drug capsules 17 to achieve multi-dose storage. The capsule outlet 8 of the reservoir 9 is connected to the inhaler 1 to maintain the fluidity of the drug powder. The continuous supply of capsules 17 through the rotating drive and the paddle 14 ensures that the drug particles can be effectively dispersed into aerosols by the inhaled airflow, improving the lung deposition rate. A baffle 7 is provided on the outer side of the capsule outlet 8 to prevent the capsule 17 from popping out. A spring hinge is provided on the top of the capsule outlet 8, and the baffle 7 is connected to the capsule outlet 8 via the spring hinge. The elasticity of the spring hinge allows the baffle 7 to automatically reset, ensuring that only one capsule 17 is released at a time, avoiding jamming or disorder caused by multiple capsules 17 falling at the same time. The timely reset of the baffle after the capsule 17 is released can prevent subsequent capsules 17 from accidentally popping out or being impacted by external forces, reducing the risk of capsule 17 breakage and protecting the integrity of the capsules 17. Automatic blocking is achieved through a simple spring hinge mechanical structure, which effectively improves the accuracy of capsule 17 filling and the working efficiency of the equipment.

[0049] The inhaler 1 has a hollow cylindrical shell 10. A mouthpiece 2 is located at the top of the shell 10, and a screen 11 and a needle 12 are sequentially arranged at the bottom of the mouthpiece 2. An electric push rod 15 is located at the bottom of the shell 10, and a reservoir 13 is connected to the top of the electric push rod 15. The electric push rod 15 is pushed towards the needle 12. The reservoir 13 is a hollow cylindrical structure with an opening at the end facing the needle 12. A capsule 17 can be placed inside the reservoir 13, which can slide relative to the shell 10 under the push of the electric push rod 15. The precise control of the electric push rod 15 ensures that the upward movement of the reservoir 13 is stable and controllable, thereby ensuring that the needle 12 can accurately and consistently puncture the drug vesicles, improving the accuracy and repeatability of drug release. The automation of the electric push rod 15 simplifies the operation process and enhances ease of use. Users can complete drug release without manual operation, reducing the difficulty of operation, making it particularly suitable for elderly patients or people with mobility impairments. The integration of the electric push rod 15 with the housing 10 (e.g., via a connector) enhances the overall structural stability, ensuring the device remains stable during drug delivery and preventing the release effect from being affected by shaking or tipping. The housing 10 has an inlet 4 on its side surface, into which the outlet 8 can be inserted. When the outlet 8 is inserted into the inlet 4, the shield opens and contacts the inside of the inlet 4, forming a direct drug delivery channel. This optimizes the drug particle delivery path, reduces drug diffusion and loss during delivery, and thus improves drug delivery efficiency. Furthermore, the precise alignment of the outlet 8 and the inlet 4 simplifies the operation of the inhaler 1, allowing users to complete drug loading or inhalation preparation steps more quickly and accurately, improving ease of operation and enhancing the user experience. The hollow cylindrical structure of the reservoir 13 inherently possesses good mechanical stability, while the insertable inlet 4 further strengthens the connection between the components of the housing 10. This design ensures the structural stability of the inhaler 1 during operation, reducing the risk of structural damage due to accidental collisions. The hollow cylindrical structure, combined with the embeddable inlet 4, makes more efficient use of internal space, resulting in a more compact overall structure for the inhaler 1, making it easier to carry and use. A discard port 3 is located on the side surface of the housing 10 opposite to the inlet 4. Through holes are provided on both sides of the storage tank 13. When the electric push rod 15 is not in operation, the channels of these through holes are flush with the inlet 4 and the discard port 3. When the vesicles in the storage tank 13 need to be discarded, the electric push rod 15 retracts, aligning the through holes with the discard port 3, allowing the vesicles to be discharged through the through holes from the discard port 3, achieving automatic material disposal. The discard port 3 can promptly discharge defective or residual vesicles, preventing material accumulation in the storage tank 13 and affecting subsequent feeding accuracy, thus avoiding material buildup. The alignment of the through holes with the inlet / discard port 3 is controlled by the extension and retraction of the electric push rod 15, forming a mechanical linkage that simplifies the operation process and improves the reliability of the equipment.

[0050] The side surface of the housing 10 is also equipped with a control unit (controller 5) and a display screen 6, which is located below the control unit. The electric actuator 15, display screen 6, and control unit are electrically connected. The control unit centrally manages the operation of the electric actuator 15 and display screen 6. Users can achieve precise adjustment of the electric actuator 15 (such as stroke, speed, etc.) through the control unit, improving operational convenience and efficiency. At the same time, the display screen 6 can provide real-time feedback on the actuator status or related data, eliminating the need for additional operating equipment, greatly simplifying the operation process and improving work efficiency. The electric actuator 15, display screen 6, and control unit can work together to achieve automated control, data interaction, and intelligent adjustment (such as automatically adjusting the actuator position based on sensor data), improving the intelligence level of the equipment. By using the control unit to perform closed-loop control of the electric actuator 15 (combined with encoder feedback), the stop position and movement trajectory of the actuator can be precisely controlled, avoiding errors from manual adjustment and improving adjustment accuracy and stability. At the same time, the electrical signal transmission is less susceptible to interference, ensuring stable execution of commands and reducing operational errors caused by signal delay or distortion. The display screen 6 can directly show the real-time position, operating status, or fault information of the actuator. Users can monitor and adjust the operating status (stroke, speed, etc.) of the actuator motor 22 in real time through the display screen 6, obtaining key data without relying on external equipment. Combined with the control unit's operating interface (such as a touch screen and buttons), users can more intuitively and efficiently complete parameter settings and equipment monitoring, achieving precise control and improving user work efficiency and comfort. When the electric actuator 15 malfunctions, the control unit can quickly locate the fault type (such as overload, synchronization abnormality, etc.) through the display screen 6 and guide the user to troubleshoot, reducing maintenance difficulty and downtime.

[0051] like Figure 5As shown, the bottom of the electric actuator 15 is equipped with an actuator motor 22 and a battery compartment 23. The battery compartment 23 is electrically connected to the actuator motor 22, the control unit, and the display screen 6. The integration of the battery compartment 23 allows the device to operate without relying on an external power source, greatly improving its portability and flexibility in application scenarios, making it particularly suitable for environments requiring mobile operation, such as medical device adjustment. As a centralized power supply unit, the battery compartment 23 provides a stable and consistent power supply to the actuator motor 22, the control unit, and the display screen 6, reducing instability or malfunctions caused by power fluctuations, thus extending the device's lifespan and improving overall reliability. Connecting the battery compartment 23, actuator motor 22, control unit, and display screen 6 via electrical signals achieves a highly integrated system architecture, reducing the complexity of external wiring and simplifying the operation process. The battery-powered nature makes it more advantageous in scenarios without a fixed power source. Through the centralized power supply of the battery compartment 23 and its electrical signal connection to the actuator motor 22, control unit, and display screen 6, the device's portability, ease of operation, system stability, and high integration are improved, making it suitable for dry powder inhalation drug delivery applications requiring high precision.

[0052] To achieve continuous, stable, and patient-friendly drug administration, this embodiment preferably employs one or a combination of the following control strategies: Timing + Counting Control: The control unit drives the electric push rod 15 to complete one advance / retreat cycle according to a preset timing sequence; during advance, the needle 12 punctures the capsule 17 and maintains it for 0.5–3.0 s to ensure that the powder disperses upwards, and then retracts to allow the broken capsule shell 17 to be discharged from the discard port 3. The control unit records each cycle and displays the number of remaining capsules 17 on the display screen 6.

[0053] Breathing detection trigger: When a user inhales, the drive mechanism is triggered to release powder to improve lung parenchyma delivery efficiency.

[0054] Manual / Remote Trigger: Allows users to trigger the function by pressing a button on the control unit or by issuing a command via an external mobile terminal.

[0055] like Figure 4 As shown, two arc-shaped baffles 20 are provided in the channel of the storage tank 13 near the discard port 3, with a gap between the two baffles 20.

[0056] The gap between the two arc-shaped baffles 20 allows for precise control of the material flow (such as bags), ensuring stable and controllable material flow and preventing large amounts of material from flooding into the bag disposal port 3. This is particularly suitable for applications requiring step-by-step processing or positioning. The arc-shaped baffles 20 also guide the material along a predetermined path to the bag disposal port 3. Simultaneously, the arc-shaped structure of the baffles 20 reduces friction between the material and the channel wall, lowering the risk of jamming. Furthermore, the constraint effect of the gap further ensures the accuracy of material movement. The design of the baffles 20 also prevents material from shifting or detaching during movement, especially when the base moves or vibrates, effectively preventing material from leaving its predetermined position due to inertia, thereby improving the overall reliability of the device.

[0057] This structural design achieves complex material control functions through a simple combination of baffles 20 and gaps. By providing precise guidance, stable control, and a simplified structure, it effectively improves the performance and adaptability of the material handling and transfer device. This combination of baffles 20 and gaps eliminates the need for additional complex mechanical structures, simplifying device design and reducing manufacturing costs and maintenance difficulty. The gap between the two baffles 20s is adjustable, allowing for flexible adaptation to materials of different sizes or shapes, enhancing the device's versatility and flexibility.

[0058] The paddle 14 has a crescent-shaped structure, with its concave surface facing the capsule 17. This curved structure allows the paddle 14 to better conform to the surface of the capsule 17, forming a natural guide channel. When the capsule 17 moves to this position, the concave surface of the paddle 14 guides the capsule 17 along a predetermined path towards the disposal port 3, reducing the risk of deviation or jamming. The concave design concentrates the contact area between the paddle 14 and the capsule 17, and the curved surface disperses contact pressure, thereby reducing frictional resistance during capsule 17 movement and preventing damage or obstruction due to excessive friction. The concave surface of the paddle 14 allows for fine-tuning of the axial and radial position of the capsule 17, precisely controlling its posture and ensuring it enters the disposal port 3 in the correct orientation. For example, it prevents the capsule 17 from tilting or flipping, ensuring the accuracy of subsequent processing. The crescent-shaped lever 14 achieves guiding, limiting, and attitude control functions through a single structure, eliminating the need for complex mechanical devices. This simplifies the design of the reservoir 13 and improves long-term operational stability, resulting in a simple and highly reliable structure. The shape and design of the lever 14, through its concave surface guiding, friction-reducing, and attitude control functions, significantly improves the smoothness and positioning accuracy of the capsule 17 during the capsule disposal process, while maintaining structural simplicity and reliability. The curvature of the concave surface of the lever 14 can be optimized according to common capsule 17 sizes. Through elastic materials or adjustable structures, it can be compatible with a certain range of capsule 17 specifications, adapting to different sizes of capsules 17 and enhancing the device's versatility.

[0059] like Figure 3 As shown, a moisture-proof chamber 19 is provided around the inside of the reservoir 9, and a moisture-proof agent block is provided inside the moisture-proof chamber 19.

[0060] The desiccant block inside the moisture-proof chamber 19 continuously absorbs moisture from the internal environment of the storage container 9, maintaining the humidity within a set safe range. This effectively prevents the stored materials (such as the materials in capsules 17) from becoming moldy or deteriorating due to moisture. This design achieves its moisture-proof function by physically placing the desiccant. The structure is relatively simple, does not involve complex mechanical or electronic systems, and is therefore easy to implement. Maintenance and replacement of the desiccant block are also convenient. Through the built-in moisture-proof measures, the storage container 9 can resist the effects of changes in external humidity to a certain extent, thus maintaining internal dryness under various climatic conditions and improving its performance and reliability in various environments. This design, combining the moisture-proof chamber 19 with the desiccant block, achieves effective control of the internal humidity of the storage container 9 with low cost and a simple structure, providing excellent moisture-proof and anti-condensation effects.

[0061] In this embodiment, the reservoir has a diameter of 12 cm and a thickness of 3 cm. The inhaler has a diameter of 1 cm and a height of 13 cm. The reservoir groove has an inner diameter of 1.1 cm and a height of 3.0 cm. The electric push rod has a height of 15 cm, an advance time of 0.1 s, and a retraction time of 0.1 s. The mesh size of the screen is 200 mm; the length of the needle is 4 mm.

[0062] The operation process of this embodiment in practical application includes the following steps: (1) The user inserts the capsule outlet 8 on the reservoir 9 into the capsule inlet 4 on the inhaler 1. The baffle 7 is opened, the capsule 17 is released and enters the reservoir 13 in the inhaler 1. At this time, the control unit 5 is pressed to start the device.

[0063] (2) The push rod motor 22 receives the electrical signal and starts to run. The rod 21 of the electric push rod 15 quickly pushes the reservoir 13 to the top of the shell 10. The capsule 17 in the reservoir 13 is punctured by the needle 12. At the same time, the powder in the capsule 17 has upward inertial potential energy, and the patient can inhale the powder from the mouthpiece 2. The broken capsule shell fragments are blocked by the screen 11, and the patient cannot inhale the capsule fragments.

[0064] (3) After a set time of one second, the rod 21 is retracted to the initial position by the push rod motor 22, and the broken capsule in the storage tank 13 is squeezed out from the hole on the side of the discard port 3 by the intact capsule 17. The intact capsule 17 is prevented from popping out by the baffle 20. At this time, the number of records recorded on the display screen 6 is incremented by 1.

[0065] The dry powder inhalation device of this embodiment has a simple structure and is reusable, avoiding complicated operation, and can record the number of times the patient takes medication. The patient only needs to breathe normally to complete the drug inhalation, ensuring a uniform and stable amount of medication each time.

[0066] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous drug delivery dry powder inhalation device, characterized in that, include: The reservoir and the inhaler are provided. The outer edge of the reservoir is provided with an outlet, which is connected to the inhaler. The reservoir is provided with a rotatable capsule disc. Multiple capsules are evenly distributed on the capsule disc along the circumferential direction. A rotation drive is coaxially connected to the bottom surface of the capsule disc. A paddle for pulling the capsules off the capsule disc is fixedly provided on the inner side of the outlet.

2. The continuously administering dry powder inhalation device according to claim 1, characterized in that, A shield is provided on the outside of the capsule outlet to prevent the capsule from popping out, and a spring hinge is provided on the top of the capsule outlet. The shield is connected to the capsule outlet through the spring hinge.

3. The continuously administering dry powder inhalation device according to claim 2, characterized in that, The inhaler is provided with a shell, which is a hollow cylindrical structure. The side surface of the shell is provided with an inlet, and the outlet can be inserted into the inlet.

4. The continuous drug delivery dry powder inhalation device according to claim 3, characterized in that, The top of the housing is equipped with a suction nozzle, and the bottom of the suction nozzle is provided with a screen and a needle in sequence; the bottom of the housing is equipped with an electric push rod, the top of the electric push rod is connected to a reservoir, the pushing direction of the electric push rod is towards the needle, and the reservoir is a hollow cylindrical structure with an opening at one end facing the needle.

5. The continuously administering dry powder inhalation device according to claim 4, characterized in that, A discard port is provided on the side surface of the housing opposite to the inlet port. Through holes are provided on both sides of the storage tank. When the electric push rod is not in operation, the channel of the through hole is flush with the inlet port and the discard port.

6. The continuously administering dry powder inhalation device according to claim 4, characterized in that, The side surface of the housing is also provided with a control unit and a display screen, and the electric push rod, the display screen and the control unit are electrically connected.

7. The continuously administering dry powder inhalation device according to claim 6, characterized in that, The bottom of the electric push rod is equipped with a push rod motor and a battery compartment, and the battery compartment is electrically connected to the push rod motor, the control unit, and the display screen.

8. The continuously administering dry powder inhalation device according to claim 5, characterized in that, Two arc-shaped baffles are provided inside the channel of the storage sac near the sac outlet, with a gap between the two baffles.

9. The continuously administering dry powder inhalation device according to claim 1, characterized in that, The paddle has a crescent-shaped structure, with the concave surface of the crescent-shaped structure facing the capsule.

10. The continuously administering dry powder inhalation device according to claim 1, characterized in that, The reservoir has a moisture-proof chamber around its interior perimeter, and the moisture-proof chamber contains a moisture-proof agent block.

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