Medicine bomb assembly and medicine aerosol delivery device

Abstract

The utility model provides a medicine bomb assembly and a medicine aerosol delivery device, the medicine bomb assembly is applied in the medicine aerosol delivery device, the medicine bomb assembly is removably installed in a shell of the medicine aerosol delivery device, the medicine bomb assembly comprises a medicine bomb shell, a medicine storage bin is defined in the medicine bomb shell, and a medicine storage cavity is formed in the medicine bomb shell; the aerosol generator is used for atomizing a set dose of medicine into aerosol; wherein the cartridge case is provided with a fluid inlet and a fluid outlet, an aerosol channel is formed between the fluid inlet and the fluid outlet, the aerosol generator is positioned in the cartridge case and communicated with the aerosol channel, the fluid inlet is formed in the bottom of the cartridge case, and the fluid outlet is formed in the top of the cartridge case. The medicine bomb assembly can atomize a set dose of medicine into aerosol so as to achieve accurate medicine administration. The utility model further provides a drug aerosol delivery device which can be used for accurately delivering drugs and has the advantages of small size and convenience in carrying.

Description

Technical Field

[0001] The utility model relates to the technical field of atomized drug delivery, in particular to a drug cartridge component and a drug aerosol delivery device. Background Art

[0002] Aerosol inhalation therapy is to use an atomizer to disperse the drug into tiny droplets or particles, suspend it in the gas, and enter the respiratory tract and lungs to achieve the purpose of local treatment and systemic treatment. Aerosol inhalation therapy has been widely used in clinical treatment, usually using a medical atomizer inhaler.

[0003] However, most of the existing nebulizers nebulize liquid drugs, which are prone to leakage during carrying. In addition, the drug liquid storage device and the nebulizer are both separately arranged, which makes the volume of the nebulizer larger. For example, the Chinese utility model patent with authorization announcement number CN215916031U discloses a nebulizer with a drug liquid cup and an atomizer. The drug liquid cup and the atomizer in the patent are separately arranged and need to be connected by means of a pipeline, which not only increases the volume of the atomizer equipment, but also causes drug residues in the pipeline during use, which is easy to cause drug liquid loss, and it is inconvenient to disinfect and clean the inside of the cavity. In addition, the drug in the nebulizer is stored in the drug liquid cup in liquid form, which is prone to drug liquid leakage. In particular, when the user carries the nebulizer, he usually chooses to put it in a bag. During the movement, the nebulizer will be squeezed and collided with other items in the bag, causing the cup cover of the drug liquid cup to be opened by mistake, thereby causing drug liquid leakage. Utility Model Content

[0004] In order to solve the problems existing in the prior art, on the one hand, the utility model provides a drug cartridge assembly that can store drugs independently without worrying about drug liquid leakage. The drug cartridge assembly has a fluid inlet and a fluid outlet, which can form an aerosol channel for drug aerosol transportation, so that the drug is delivered to the patient's respiratory tract, and has the advantages of being small in size and easy to carry.

[0005] On the other hand, the utility model provides a drug aerosol delivery device, including the above-mentioned drug cartridge assembly, which has the advantages of small size, convenient use and easy to carry.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, a drug cartridge assembly for a drug aerosol delivery device is provided, which is removably mounted in a housing of the drug aerosol delivery device, and the drug cartridge assembly comprises:

[0008] A drug cartridge case, the interior of which defines a drug storage compartment; and

[0009] an aerosol generator, which is used to nebulize a set dose of medicine into an aerosol;

[0010] The drug cartridge case has a fluid inlet and a fluid outlet, an aerosol channel is formed between the fluid inlet and the fluid outlet, the aerosol generator is positioned in the drug cartridge case and communicated with the aerosol channel, the fluid inlet is arranged at the bottom of the drug cartridge case, and the fluid outlet is arranged at the top of the drug cartridge case.

[0011] Furthermore, the drug cartridge case includes an outer shell and a base, the outer shell and the base together define the drug storage chamber, the base defines the fluid inlet, and the top of the outer shell defines the fluid outlet.

[0012] Furthermore, the shell is provided with at least one mist outlet nozzle, and the mist outlet is adapted to the patient's mouth and nose.

[0013] Furthermore, the mist outlet nozzles are configured in two to adapt to the nasal cavity of the patient.

[0014] Furthermore, the outlet diameter D of the mist outlet nozzle is 1.0 mm ≤ D ≤ 3.5 mm.

[0015] Furthermore, the inner side surface of the mist outlet nozzle is configured to be a cone that can gather the aerosol.

[0016] Furthermore, the aerosol generator is a heating atomizer or an ultrasonic atomizer.

[0017] Further, the drug cartridge assembly is configured to controllably output aerosolized particles with a particle size range of 20 nm-20 μm to implement partial or full respiratory tract administration:

[0018] Furthermore, the cartridge assembly is configured to be able to controllably adjust the output dose of the aerosol.

[0019] Furthermore, the drug cartridge assembly is configured such that, before use, the drug component and the atomizing solvent are separated by an isolation membrane, and when in use, the isolation membrane is removed to dissolve the drug component in the atomizing solvent to form a uniform atomized medicament.

[0020] Furthermore, it also includes a fluid guide tube connecting the fluid opening and the fluid outlet, and an aerosol channel is defined in the fluid guide tube.

[0021] On the other hand, the utility model provides a drug aerosol delivery device, comprising a housing and a drug cartridge assembly, wherein the drug cartridge assembly is removably mounted in the housing.

[0022] Compared with the prior art, the utility model has the following technical effects:

[0023] 1. In the device, an aerosol channel for drug aerosol delivery is formed in the drug cartridge assembly, and the aerosol generator is positioned in the aerosol channel, which can directly atomize the drug in the aerosol channel, so that the drug storage space and the atomization space are combined together, which not only saves space and makes the entire device more compact, but also avoids drug residue in the inner cavity of the drug aerosol delivery device; in addition, the aerosol generator can controllably atomize the set dose of drug into aerosol, which can achieve precise drug delivery and improve the treatment effect.

[0024] 2. Before the use of the drug cartridge assembly, the drug component and the atomizing solvent are separated by an isolation membrane. When in use, the isolation membrane is removed to dissolve the drug component in the atomizing solvent to form a uniform atomized medicament, forming a solid drug, which can prevent the drug from flowing out of the drug cartridge case. There is no need to worry about leakage during use, which is convenient for users to carry and use.

[0025] 3. The drug cartridge assembly in the device can be removably installed in the housing of the drug aerosol delivery device. After the drug in the drug cartridge assembly is used up, it is convenient for the user to replace the drug cartridge assembly, thereby achieving sustainable use of the device.

[0026] 4. The utility model also provides a drug aerosol delivery device that can actively deliver aerosols to patients rather than passively administer drugs, thereby solving the problem that some patients, especially those with long-term lung diseases, have weak breathing strength and cannot generate sufficient breathing force to inhale drugs. In addition, the delivery device has a compact structure and can be held in the hands of patients, making it easy to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention rather than limiting the present invention.

[0028] Figure 1 It is a schematic diagram of the structure of the utility model in the closed cover state.

[0029] Figure 2 It is a schematic diagram of the structure of the cover-opening state in the utility model.

[0030] Figure 3 yes Figure 1 Exploded view of.

[0031] Figure 4 It is a cross-sectional view of the utility model.

[0032] Figure 5 It is an internal structure view of the utility model.

[0033] Figure 6It is a structural schematic diagram of a traditional Chinese medicine bomb assembly of the utility model.

[0034] Figure 7 yes Figure 6 Exploded view of.

[0035] Figure 8 yes Figure 6 sectional view of .

[0036] Fig. 9 It is the distribution diagram of aerosol particles output by the ammunition component.

[0037] Explanation of the reference numerals: 1-box cover; 2-shell; 2a-left shell; 2b-right shell; 2c-air inlet; 3-indicator light; 4-button; 5-cartridge assembly; 5a-cartridge shell; 5a1-mist outlet nozzle; 5a2-aerosol channel; 5b-drug solution holding part; 5c-fluid guide tube; 5d-aerosol generator; 5e-base; 5e1-fluid inlet; 5f-electrode part; 6-cartridge cover; 8-flow generator; 9-circuit board; 10-battery. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0039] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. Unless otherwise defined, the technical terms or scientific terms used in this patent document should be the common meaning understood by people with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the utility model patent specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "one" or "the" do not indicate quantitative restrictions, but indicate the existence of at least one. Words such as "include" or "comprise" and the like mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the utility model.

[0040] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0042] The utility model provides a drug aerosol delivery device and a drug bullet assembly 5 used in the drug aerosol delivery device. Figures 1 to 5 The figure shows the structure of the drug aerosol delivery device in the utility model. Figures 6 to 8 The figure shows a schematic diagram of the structure of the Chinese medicine bullet assembly 5 of the utility model. The medicine bullet assembly 5 is removably installed in the housing 2 of the drug aerosol delivery device. Specifically, a medicine bullet sleeve 6 is provided in the housing 2, and the medicine bullet assembly 5 can be slid up and down in the medicine bullet sleeve 6, so that the medicine bullet assembly 5 can be replaced conveniently. Fig. 9 It is the distribution diagram of aerosol particles output by the bullet assembly 5.

[0043] like Figure 4 and Figure 7 As shown, the drug cartridge assembly 5 includes a drug cartridge case 5a and an aerosol generator 5d, wherein the interior of the drug cartridge case 5a defines a drug storage bin, and the aerosol generator 5d is arranged in the drug storage bin, and is used to atomize the set dose of the drug into an aerosol. The drug cartridge case 5a has a fluid inlet 5e1 and a fluid outlet, and an aerosol channel 5a2 is formed between the fluid inlet 5e1 and the fluid outlet. The aerosol generator 5d is positioned in the drug cartridge case 5a and communicates with the aerosol channel 5a2, and the fluid inlet is arranged at the bottom of the drug cartridge case 5a, and the fluid outlet is arranged at the top of the drug cartridge case 5a: when in use, the drug is stored in the drug storage bin, and then the drug is atomized by the aerosol generator 5d. When in use, the aerosol generator 5d can be operated by the user to atomize the set dose of the drug into an aerosol, and accurate drug administration can be achieved. At the same time, fluid passes through the aerosol channel 5a2 to deliver the aerosol to the patient's mouth and nose, so that the patient can inhale the drug conveniently.

[0044] like Figure 7 As shown, in order to facilitate the addition of liquid medicine or dissolving the medicine into the solution, the medicine cartridge 5a in this embodiment includes an outer shell and a base 5e, the outer shell and the base 5e together define the medicine storage bin, the base 5e defines the fluid inlet 5e1, and the top of the outer shell defines the fluid outlet. Specifically, the base 5e is a rubber part or a silicone part, and the base 5e is detachably attached to the medicine cartridge 5a and can be inserted into the opening at the bottom of the medicine cartridge 5a to block the opening and have a sealing effect to prevent drug leakage. In another embodiment, the base 5e and the medicine cartridge 5a can be set as one body, or welded or fixed as one body in a subsequent process. The sealing performance of this structure is better than that of a split structure, but the user cannot be allowed to replace the liquid medicine, and it can only be discarded after use. The use cost is relatively high, but it will not cause cross infection.

[0045] The medicine is loaded into the medicine storage bin in solid or liquid form. In the present embodiment, the medicine is mixed with solid auxiliary materials to form a solid preparation (only applicable to heating atomization) or dissolved in a solvent to form an atomizable liquid medicine, and then loaded into the medicine storage bin, or a liquid medicine holding portion 5b is installed in the medicine storage bin, such as a cotton core, porous ceramics, adsorbents and other porous materials that absorb liquid. In order to prevent the liquid medicine from failing for a long time, the medicine and the atomizing solvent can be packaged separately, and the isolation film can be removed when used to dissolve the medicine into the atomizing solvent, thereby extending the service life of the medicine. Since an aerosol generator 5d is provided in the medicine cartridge 5a, in order to supply electric energy to the aerosol generator 5d, an electrode portion 5f for transmitting electric energy to the aerosol generator 5d is embedded in the base 5e. Specifically, there are two electrode portions 5f, which are metal parts embedded in the base 5e, or other objects that can conduct electricity.

[0046] like Figure 6-8 As shown, the top of the drug cartridge 5a has a mist outlet 5a1 extending upward, and the contour shape of the mist outlet 5a1 is configured to be able to adapt to the patient's mouth and nose, so that the patient can inhale the drug through the nose or mouth, and the mist outlet 5a1 is at least one. Preferably, there are two mist outlets 5a1 in the embodiment, one on the left and one on the right, which are respectively matched with the nostrils. Therefore, the aerosol precision delivery device in this embodiment is mainly based on nasal delivery, inducing the central nervous system through the nasal mucosa and the nasal olfactory bulb to treat diseases related to emotional and mental aspects. The outlet diameter D of the mist outlet 5a1 is 1.0mm≤D≤3.5mm. The mist outlet 5a1 within this diameter range can achieve a balance between the amount of mist and the speed of mist outlet, avoiding the problem of trapped air caused by the mist outlet 5a1 being too small, and when the mist outlet 5a1 is large, the force of the mist outlet is insufficient, and the drug cannot be effectively administered to the user. At the same time, the above diameter setting can also ensure that the mist outlet 5a1 fits the nasal cavity, improving the comfort of use. Specifically, the diameter D of the mist outlet nozzle 5a1 is 2.5 mm, and can also be any value in the range of 1.0 mm ≤ D ≤ 3.5 mm. The inner side of the mist outlet nozzle 5a1 is configured to be a cone that can gather the aerosol so as to fit the nostril, prevent leakage, and improve the delivery accuracy of the aerosol.

[0047] like Figure 4 and Figure 7As shown, it also includes a fluid guide tube 5c connecting the fluid opening and the fluid outlet, and an aerosol channel 5a2 is defined in the fluid guide tube 5c. The function of the fluid guide tube 5c is to guide the generated aerosol upward to the mist outlet nozzle 5a1 to prevent air entrapment. Specifically, a pipeline can be connected to the aerosol generator 5d, and the generated aerosol can flow into the mist outlet nozzle 5a1 through the fluid guide tube 5c. Specifically, the fluid guide tube 5c is a metal tube that extends from the top of the aerosol generator 5d to the bottom of the mist outlet nozzle 5a1. In the present utility model, the above-mentioned air entrapment refers to the fact that the outlet flow rate is less than the aerosol output flow rate, resulting in the aerosol being unable to flow out effectively, and it seems to be trapped in the aerosol channel 5a2, so that the delivery accuracy is reduced.

[0048] It should be noted that the aerosol generator 5d in the utility model is a heating atomization device or an ultrasonic atomization device. For drugs with excellent thermal stability, the solid drug preparation can be directly heated or prepared into a liquid atomizer and then heated to evaporate and atomize into an aerosol. Since some drugs are unstable at high temperatures and easily decompose and become ineffective, ultrasonic atomization devices are more advantageous than heating atomization devices for thermally unstable drugs. The heating atomization device is a heating element (solid atomizer), a ceramic core or a cotton core heating atomizer (liquid atomizer), and similar heating atomization methods have been widely used in the electronic cigarette industry; the ultrasonic atomization device is a piezoelectric ceramic atomizer or a mesh atomizer, and ultrasonic atomization is also a conventional atomization method, which is widely used in the medical and beauty industries, and its specific structure will not be described in detail. It should be further explained that in order to introduce the drug liquid into the nebulizer for atomization, for a heating type nebulizer, a liquid guide piece is usually set around the nebulizer to guide the drug liquid to the periphery of the nebulizer. When heated, the drug liquid in the liquid guide piece is directly atomized into an aerosol. The liquid guide piece is usually made of porous temperature-resistant materials, such as ceramics, cotton fibers, etc.

[0049] In addition, in order to achieve precise drug delivery, the drug cartridge assembly 5 of the utility model is configured to be able to controllably output atomized particles with a particle size range of 20nm to 20um, and aerosols of different particle sizes will be deposited in the corresponding respiratory tract to implement targeted drug delivery of part or all of the respiratory tract. The respiratory tract is divided into upper and lower parts: nose, nose, and lungs, collectively known as the upper respiratory tract. The trachea, bronchi and lung organs are collectively known as the lower respiratory tract, or the tracheal tree. According to the applicant's research, atomized particles of different particle sizes are deposited in different positions in the respiratory tract. As long as the particle size of the atomized particles is controlled, different respiratory tract positions can be administered, thereby achieving precise drug delivery. For heating cotton core atomizers, the size of the atomized particles can be adjusted by controlling the viscosity of the atomizer, the power of the heating element and the size of the airflow. For ceramic core atomizers, the size of the atomized particles can be adjusted by controlling the viscosity of the atomizer, the size of the porous ceramic aperture, the power of the heating element and the airflow velocity, but for ultrasonic atomizers, the particle size of the atomized particles must be controlled by a mesh screen to control the aerosol particle size. Fig. 9 It is the distribution diagram of aerosol particles output by the drug cartridge assembly 5 measured by professional instruments. Fig. 9 As shown, the bar graph in the figure represents the probability of aerosol appearing in different particle size ranges, and the wavy line represents the percentage of aerosol amount within the particle size range. It can be seen from the figure that the particle size range of the aerosolized particles generated by the atomization device in this example is generally 1 to 10 μm, and the amount of aerosol within this range is close to 100%, and is approximately normally distributed. Furthermore, the proportion of fog particles in the particle size range of 1 to 5 μm is about 60%, which not only ensures the stability of the particle size output, but also the aerosolized particles in this particle size range can be deposited in the patient's lungs, thereby achieving precise drug delivery and improving the drug treatment effect. It should be noted that the above-mentioned professional instruments and equipment can use the PSA series laser particle size analyzer produced by Anton Paar, which uses dynamic light scattering technology for measurement. Dynamic light scattering (DLS) is a physical technology used to characterize the particle and molecular size in suspensions or solutions.

[0050] In addition, the drug cartridge assembly 5 is configured to be able to adjust the output of the aerosol in a controlled manner. Specifically, the output of the aerosol can be adjusted by controlling the power of the aerosol generator 5d, the atomization time, and the air volume of the fan. The adjustment of the output can be program-set based on an electronic prescription, or can be manually adjusted based on the actual demand for the drug by the user. An adjustment device, such as a knob or a screen, can be provided on the product for the user to adjust the output of the aerosol. That is, the control unit includes a dosage adjustment unit that can be operable to adjust the output of the aerosol.

[0051] like Figure 1-5As shown, the utility model provides a drug aerosol delivery device, including a shell 2 and a drug cartridge assembly 5, wherein the drug cartridge assembly 5 is removably mounted in the shell 2, and further includes the drug cartridge assembly 5, a flow generator 8, and a control unit. The size and shape of the shell 2 are configured to be held in the user's hand; the flow generator 8 is used to generate a positive pressure airflow to deliver the aerosol to the respiratory tract, which includes the mouth, nose, trachea, and lungs, and the aerosol enters the trachea and lungs via the mouth and nose. The flow rate and flow velocity of the positive pressure airflow can be set and adjusted to accurately deliver drugs to the user, achieve targeted drug delivery, and significantly improve the utilization rate and therapeutic effect of the drug. The control unit is used to receive user operation instructions, and drive the drug cartridge assembly 5 to output the aerosol of the drug, and at the same time drive the flow generator 8 to generate a set amount of positive pressure airflow to drive the aerosol into the respiratory system.

[0052] The flow generator 8 can be a fan or an air pump. The fan is preferably a fan with adjustable air volume and wind speed. The air pump can be a micro air pump produced by Murata Manufacturing Co., Ltd. of Japan, and its flow rate can be adjusted by changing the current value. Specifically, in this embodiment, the flow generator 8 is a fan.

[0053] like Figure 3 and Figure 5 As shown, the control unit includes a circuit board 9, on which an indicator light 3 and a button 4 are provided. In order to save space, the circuit board 9 is arranged in the gap between the drug shell 5a and the drug shell assembly 5 in the vertical direction, specifically between the drug shell 5a and the drug shell sleeve 6. The above configuration can significantly reduce the size of the whole machine, making the product easy to hold in the palm of the user and convenient for the user to operate. The housing 2 is combined with an operating part for the user to press, and the outer shell of the fan and the drug shell sleeve 6 can be pressed against the back of the circuit board 9 to support the operating part, thereby reducing the difficulty of installation and saving internal space.

[0054] In order to further reduce the overall size of the product, the utility model places the battery 10 horizontally in the air inlet cavity. Specifically, an air inlet cavity is formed between the fan and the housing 2, and the battery 10 is installed in the air inlet cavity. Optionally, the battery 10 is a rechargeable battery, and a charging interface for charging the rechargeable battery is provided at the bottom of the housing 2: In order to facilitate the installation of the internal structure, the housing 2 is divided into a left shell 2a and a right shell 2b, and the top of the housing 2 has an opening, the drug cartridge sleeve 6 is clamped between the left shell 2a and the right shell 2b, and the drug cartridge assembly 5 can be slidably installed in the drug cartridge sleeve 6. Figure 5The figure shows the internal structure after the left shell 2a is removed. The left shell 2a and the right shell 2b can be fixedly installed by fasteners, such as screws, or by buckles, and an air inlet 2c is provided on the right shell 2b. In addition, a box cover 1 is connected to the top of the shell 2, and the box cover 1 is pivotally connected to the shell 2. The box cover 1 can be turned over to close and open the cover, which is convenient and hygienic to use.

[0055] The above-mentioned drug aerosol delivery device can actively deliver drug aerosols to the user's respiratory system, which subversively solves the long-standing problem of aerosol inhalation drug administration, that is, the inhaled dose of the drug and the deposition position of the drug depend on the user's lung capacity, breathing force, inhalation skills and aerosol particle size, and the active aerosol delivery drug administration solves the problem that some users, especially long-term lung disease users and the elderly and children, have weak breathing force and cannot generate enough breathing force to inhale the drug. In addition, the delivery device has a compact structure and can be held in the hand of the user. Therefore, the aerosol delivery device has the advantages of being easy to carry and easy to use, and does not require hospitalization, which saves medical resources and significantly improves user compliance. Through active and precise atomization and precise delivery drug administration, the utility model can achieve partial or full respiratory tract targeted deposition of drugs, reducing the damage caused by drugs to non-lesion sites.

[0056] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A drug cartridge assembly for a drug aerosol delivery device, which is removably mounted in a housing of the drug aerosol delivery device, characterized in that: The ammunition component comprises: A drug cartridge case, the interior of which defines a drug storage compartment; and an aerosol generator, which is used to nebulize a set dose of medicine into an aerosol; The drug cartridge case has a fluid inlet and a fluid outlet, an aerosol channel is formed between the fluid inlet and the fluid outlet, the aerosol generator is positioned in the drug cartridge case and communicated with the aerosol channel, the fluid inlet is arranged at the bottom of the drug cartridge case, and the fluid outlet is arranged at the top of the drug cartridge case.

2. The ammunition cartridge assembly according to claim 1, characterized in that: The drug cartridge case comprises an outer shell and a base, wherein the outer shell and the base together define the drug storage chamber, the base defines the fluid inlet, and the top of the outer shell defines the fluid outlet.

3. The ammunition cartridge assembly according to claim 2, characterized in that: The shell is provided with at least one mist outlet nozzle, and the mist outlet nozzle is adapted to the patient's mouth and nose.

4. The ammunition cartridge assembly according to claim 3, characterized in that: The mist outlet nozzles are configured in two to adapt to the nasal cavity of the patient.

5. The ammunition cartridge assembly according to claim 4, characterized in that: The outlet diameter D of the mist outlet nozzle is 1.0 mm ≤ D ≤ 3.5 mm.

6. The ammunition cartridge assembly according to claim 3, 4 or 5, characterized in that: The inner side surface of the mist outlet nozzle is configured to be a cone that can gather the aerosol.

7. The ammunition cartridge assembly according to claim 6, characterized in that: The aerosol generator is a heating atomizer or an ultrasonic atomizer.

8. The ammunition cartridge assembly according to claim 1, characterized in that: The drug cartridge assembly is configured to controllably output aerosolized particles with a particle size range of 20 nm-20 μm to implement partial or full respiratory tract administration.

9. The ammunition cartridge assembly according to claim 1, characterized in that: The cartridge assembly is configured so that it can controllably adjust the output dose of the aerosol.

10. The ammunition cartridge assembly according to claim 1, characterized in that: The drug cartridge assembly is configured such that, before use, the drug component and the atomizing solvent are separated by an isolation membrane, and when in use, the isolation membrane is removed to dissolve the drug component in the atomizing solvent to form a uniform atomized medicament.

11. The ammunition cartridge assembly according to claim 1, characterized in that: The invention also includes a fluid guiding tube communicating with the fluid inlet and the fluid outlet, wherein an aerosol channel is defined in the fluid guiding tube.

12. A drug aerosol delivery device, characterized in that: The invention comprises a shell and a bullet assembly, wherein the bullet assembly is removably mounted in the shell, and the bullet assembly is the bullet assembly according to any one of claims 1 to 11.

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