Medicine aerosol delivery device with replaceable medicine bomb

Abstract

The utility model provides a medicine aerosol delivery device with a replaceable medicine bomb. Comprising a medicine bomb assembly which can atomize a set dose of medicine into medicine aerosol; a mounting cavity used for positioning the ammunition assembly is formed in the shell; wherein the top of the mounting cavity is provided with an opening, and the ammunition assembly can be loaded in or taken out through the opening in a manner of sliding up and down, so that the ammunition assembly can be replaced. The traditional Chinese medicine bomb assembly can be installed in the installation cavity in a sliding mode, a user can replace the traditional Chinese medicine bomb assembly conveniently, and the device has the advantages of being compact and small in structure and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of drug atomization, in particular to a drug aerosol delivery device with replaceable drug cartridges. Background Art

[0002] Aerosol inhalation therapy is to use an atomizer to disperse the drug into tiny droplets or particles, suspend them 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] The existing nebulizer places the medicine inside the nebulizer, making it extremely inconvenient to replace the medicine. For example, the Chinese utility model patent with the authorization announcement number CN203736645U discloses a handheld high-frequency ultrasonic atomization full respiratory tract drug introduction device, including a shell with an air inlet and a cover with a mist outlet. The shell is provided with a medicine cup with an atomizing sheet and an atomizing cover with a mist outlet on the top above it. The medicine cup in the patent is located in the middle area of ​​the shell, and an atomizing cover is also provided above the medicine cup. When replacing the medicine cup, the shell needs to be fully opened, and the atomizing cover needs to be taken out before the medicine cup can be replaced, which brings inconvenience to the replacement of the medicine cup.

[0004] Therefore, it is necessary to propose a new technical solution to overcome the problems existing in the prior art. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a drug aerosol delivery device with replaceable drug cartridges. The drug cartridge assembly can be slidably installed in a mounting cavity inside a shell, so that a user can easily replace the drug cartridge assembly with simple operation.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a drug aerosol delivery device with replaceable drug cartridges is provided, comprising:

[0007] a drug cartridge assembly capable of atomizing a set dose of drug into a drug aerosol; and

[0008] A housing, wherein a mounting cavity for positioning the ammunition cartridge assembly is formed inside the housing;

[0009] The top of the installation cavity has an opening, and the ammunition assembly can be loaded or taken out through the opening in a manner of sliding up and down to replace the ammunition assembly.

[0010] Furthermore, the housing comprises:

[0011] A cartridge case, wherein the mounting cavity is formed in the cartridge case.

[0012] Furthermore, the drug cartridge assembly includes an aerosol generator, a drug cartridge case and a base, a drug storage chamber for storing drugs is formed between the drug cartridge case and the base, and the aerosol generator is configured to atomize the drugs into drug aerosol.

[0013] Furthermore, a mist outlet is formed at the top of the ammunition cartridge assembly, and an air inlet is formed at the bottom thereof.

[0014] Furthermore, the aerosol generator is a heating nebulizer or an ultrasonic nebulizer.

[0015] Furthermore, the ammunition sleeve and the base are electrically connected via a detachable electrical coupler.

[0016] Furthermore, the drug cartridge sleeve is combined with a flow generator, which is used to generate a positive pressure airflow for conveying drugs.

[0017] Furthermore, the housing also includes an outer shell, and a control device is arranged between the outer shell and the cartridge sleeve, and the control device is configured to drive the cartridge assembly to output a set dose of drug aerosol according to an operating instruction, and drive the flow generator to generate a positive pressure airflow with a set flow rate.

[0018] Furthermore, the base is a flexible component, and the ammunition sleeve has an air inlet pipe sealed with the base.

[0019] Furthermore, the ammunition cartridge sleeve is configured to limit the rotation of the ammunition cartridge assembly.

[0020] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0021] The shell of the device is provided with an installation cavity for positioning the drug cartridge assembly, and the top of the installation cavity is provided with an opening, so that the drug cartridge assembly can be loaded or taken out through the opening in a sliding manner, thereby facilitating the replacement of the drug cartridge assembly; in addition, a replaceable drug cartridge is adopted, so that the user can use the same main body to replace the drug cartridges of different drugs for atomization administration, thereby reducing the use cost; and the drug cartridge assembly is installed in the installation cavity, so that it can be prevented from being opened by mistake during carrying, thereby preventing the drug liquid from spilling, and having high safety.

[0022] In addition, the device has a compact structure and can be held in the hand of a user, and has the advantages of being easy to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, 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 utility model, rather than limiting the present utility model.

[0024] Figure 1 It is a structural schematic diagram of the closed cover state in the utility model.

[0025] Figure 2 It is a schematic diagram of the structure of the cover-opening state in the utility model.

[0026] Figure 3 This is a view of the internal structure of the utility model after the left cover is removed.

[0027] Figure 4 yes Figure 1 Exploded view of.

[0028] Figure 5 It is a cross-sectional view of the utility model.

[0029] Figure 6 It is a cross-sectional view of the Chinese medicine cartridge case and the medicine cartridge assembly of the utility model.

[0030] Figure 7 It is a structural schematic diagram of a traditional Chinese medicine bomb assembly of the utility model.

[0031] Figure 8 yes Figure 7 Exploded view of.

[0032] Fig. 9 yes Figure 7 sectional view of .

[0033] Fig.10 It is a distribution diagram of aerosol particles output by the traditional Chinese medicine bomb assembly of the utility model.

[0034] 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 nozzle; 5a2-aerosol channel; 5b-liquid holding part; 5c-mist outlet pipe; 5d-aerosol generator; 5e-base; 5e1-air inlet; 5f-electrode part; 6-cartridge cover; 6a-ventilation port; 6b-conductive connector; 7-wind condenser; 7a-air inlet pipe; 8-flow generator; 9-circuit board; 10-battery. DETAILED DESCRIPTION

[0035] 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.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] Unless otherwise defined, the technical terms or scientific terms used in this patent document shall be the common meanings 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 a quantity limit, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 invention can be understood according to specific circumstances.

[0039] 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.

[0040] See also Figures 1 to 10As shown, the utility model relates to a drug aerosol delivery device with replaceable drug cartridges, comprising a housing 2, a flow generator 8, a drug cartridge assembly 5 and a control device, wherein the drug cartridge assembly 5, the flow generator 8 and the control device are all received in the housing 2. The size and shape of the housing 2 are configured to be held in the hand of a user, with a compact structure and convenient for carrying, and an installation cavity for positioning the drug cartridge assembly 5 is formed inside the housing 2, so that the drug cartridge assembly 5 can be quickly and accurately installed in the housing 2. In order to improve the convenience of replacing the drug cartridge assembly 5, the top of the installation cavity has an opening, and the drug cartridge assembly 5 is loaded or taken out through the opening in a manner that it can slide up and down, so as to replace the drug cartridge assembly 5. The replacement operation is simple and convenient, and ordinary people can also quickly master the method of replacing the drug cartridge.

[0041] In this embodiment, the shell 2 includes a drug cartridge sleeve 6, which includes a base 5e and a side wall formed by the edge of the base 5e extending in the same direction, and the side wall and the base 5e jointly define the installation cavity, the top of which is open, so that the drug cartridge assembly 5 can be taken out or loaded by sliding up and down along the drug cartridge sleeve 6, making the replacement of the drug cartridge easier and more convenient. In order to enable the drug cartridge assembly 5 and the drug cartridge sleeve 6 to be quickly aligned and installed when replaced, the drug cartridge sleeve 6 is configured to limit the rotation of the drug cartridge assembly 5; specifically, the drug cartridge sleeve 6 is configured in an elliptical cylindrical shape, and an elliptical cylindrical installation cavity is formed inside it, and accordingly, the outer contour of the drug cartridge assembly 5 is configured in an elliptical cylindrical shape that matches the elliptical cylindrical installation cavity; and the elliptical cylindrical drug cartridge assembly 5 can also be adapted to the shell 2, which can not only ensure the drug capacity of the drug cartridge assembly 5, but also make the thickness of the shell 2 thinner, so that the drug aerosol delivery device of the utility model is smaller in size and convenient for users to carry and hold. Of course, in some other embodiments, the above-mentioned cartridge sleeve 6 and the cartridge assembly 5 may also adopt a square structure, as long as the rolling of the cartridge assembly 5 can be restricted so that the two can be quickly aligned and installed during assembly.

[0042] like Figure 5-6 As shown, the drug cartridge assembly 5 in the utility model can atomize a set dose of the drug into a drug aerosol, and the drug cartridge assembly 5 has an aerosol channel 5a2 for conveying the drug aerosol. The flow generator 8 is used to generate a positive pressure airflow to convey the drug aerosol to the respiratory tract, which includes the mouth, nose, trachea and lungs, and the aerosol enters the trachea and lungs through the mouth and nose. The flow rate and flow rate of the positive pressure airflow can be set and adjusted to accurately deliver the drug to the user, achieve targeted drug delivery, and significantly improve the utilization rate and therapeutic effect of the drug. The control device is used to receive user operation instructions, and drive the drug cartridge assembly 5 to output the drug aerosol, 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, achieve precise drug delivery, and make the patient's medication more accurate.

[0043] Specifically, the drug cartridge assembly 5 includes an aerosol generator 5d, a drug cartridge case 5a and a base 5e. A drug storage chamber for storing drugs is formed between the drug cartridge case 5a and the base 5e. In this embodiment, the aerosol generator 5d is positioned in the drug cartridge case 5a, which can not only directly atomize the drugs and improve the atomization efficiency, but also save space, making the structure of the drug cartridge assembly 5 more compact and convenient for users to replace the drug cartridge assembly 5. Generally speaking, drugs are loaded into the drug storage chamber in solid or liquid form. In this embodiment, drugs are loaded into the drug storage cavity in liquid form. Specifically, the drugs can be dissolved in a solvent to form a drug solution, which is then filled into the drug storage cavity, or a drug solution holding part 5b is installed in the drug storage cavity, such as a cotton core, a porous ceramic core and other adsorbents. In order to prevent the drug solution from becoming ineffective, the drug and the solution can be packaged separately, and the drug can be dissolved in the solution when used, thereby extending the service life of the drug; by adopting the above-mentioned structural design, the problem of drug leakage during the carrying process of users can be avoided.

[0044] like Figure 6 and Fig. 9 As shown, in order to facilitate the addition of liquid medicine, or dissolving the medicine into a solvent, the base 5e is a flexible component, 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 has a sealing effect to prevent the liquid medicine from leaking. Specifically, the base 5e is a rubber part or a silicone part. In other embodiments, 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] like Figure 6-Figure 10 As shown, a mist outlet nozzle 5a1 is formed at the top of the drug cartridge assembly 5, and an air inlet 5e1 is formed at the bottom thereof. The aerosol channel 5a2 is formed between the mist outlet nozzle 5a1 and the air inlet 5e1 to transport the drug aerosol. The mist outlet nozzle 5a1 and the aerosol generator 5d are connected via a mist outlet pipe 5c. The function of the mist outlet pipe 5c is to guide the generated aerosol upward to the mist outlet nozzle 5a1 to prevent air entrapment. Specifically, a pipe can be connected to the aerosol generator 5d, and the generated aerosol can flow into the mist outlet nozzle 5a1 through the mist outlet pipe 5c. Specifically, the mist outlet pipe 5c is a metal pipe extending 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 aerosol cannot flow out effectively because the outlet flow rate is less than the aerosol output flow rate, and it seems to be trapped in the aerosol channel 5a2, so that the delivery accuracy is reduced.

[0046] In order to facilitate the patient's medication, the contour shape of the mist outlet nozzle 5a1 is configured to be able to adapt to the patient's oral and nasal inhalation of medicine, and the mist outlet nozzle 5a1 is at least one. Preferably, there are two mist outlet nozzles 5a1 in the embodiment, one on the left and one on the right, which are tightly matched with the two nostrils respectively. 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 nozzle 5a1 is 1.0mm≤D≤3.5mm. The mist outlet nozzle 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 nozzle 5a1 being too small, and when the mist outlet nozzle 5a1 is large, the force of the mist outlet is insufficient and it is impossible to effectively administer the drug to the user. At the same time, the above diameter setting can also ensure that the mist outlet nozzle 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] Since an aerosol generator 5d is provided in the drug cartridge case 5a, in order to supply electrical energy to the aerosol generator 5d without affecting the replacement of the drug cartridge assembly 5, the drug cartridge case 6 and the base 5e are electrically connected via a detachable electrical coupler. In this embodiment, an electrode portion 5f for transmitting electrical 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 capable of conducting electricity. Accordingly, the bottom of the drug cartridge case 6 has a conductive connector 6b electrically connected to the control device, and the conductive connector 6b has two conductive connectors 6b connected one-to-one with the electrode portions 5f, such as Figure 6 As shown, when the drug cartridge assembly 5 is assembled in the drug cartridge sleeve 6, the electrode portion 5f in the base 5e thereof contacts the conductive connector 6b to realize circuit connection, so that the operation of the drug cartridge assembly 5 can be controlled by the control device to generate a set dose of drug aerosol. In order to ensure the electrical coupling effect between the conductive connector 6b and the electrode portion 5f, the conductive connector 6b in this embodiment adopts an elastic conductive connector 6b, which has an elastic force in the direction capable of resisting the electrode portion 5f, so that the conductive connector 6b can always be electrically coupled with the electrode portion 5f.

[0048] In order to allow the drug aerosol to be quickly discharged from the mist outlet 5a1, the drug cartridge case 6 in this embodiment has a vent 6a connected to the air inlet 5e1, the air outlet of the flow generator 8 is connected to the drug cartridge case 6, and the airflow generated by the flow generator 8 enters the drug cartridge assembly 5 through the vent 6a. A wind gathering hood 7 for gathering and guiding the airflow into the drug cartridge assembly 5 is also arranged between the flow generator 8 and the drug cartridge case 6. Figure 5 As shown, the wind gathering cover 7 has an air inlet pipe 7a extending into the ammunition shell 6, and the air inlet pipe 7a passes through the vent 6a and is sealed and combined with the air inlet 5e1 on the base 5e. In another embodiment, in order to guide the airflow generated by the fan into the ammunition assembly 5 more efficiently, the wind gathering cover 7 has a conical inner cavity for gathering the airflow, that is, the inner cavity of the wind gathering cover 7 is designed to be a conical inner cavity, and the airflow can enter the ammunition assembly 5 from the top of the conical inner cavity after being gathered.

[0049] 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.

[0050] It should be noted that the flow generator 8 in the utility model is a fan or an air pump, and 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.

[0051] 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 20μm. Aerosols of different particle sizes will be deposited in the corresponding respiratory tract parts to implement partial or full respiratory tract targeted drug delivery. The respiratory tract is divided into upper and lower parts: the nose, pharynx, and larynx are collectively referred to as the upper respiratory tract. The trachea, bronchi, and lung organs are collectively referred to as the lower respiratory tract, or the tracheal tree. After research by the utility model author, 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, the drug can be delivered to different respiratory tract positions, thereby achieving precise drug delivery. For heating-type cotton core nebulizers, 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 nebulizers, the size of the atomized particles can be adjusted by controlling the viscosity of the atomizer, the size of the porous ceramic pores, the power of the heating element and the air flow velocity. However, for ultrasonic nebulizers, the particle size of the atomized particles must be controlled by a mesh screen to control the aerosol particle size. Fig.10 It is the distribution diagram of aerosol particles output by the drug cartridge assembly 5 measured by professional instruments. Fig.10 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 effect of drug treatment. 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.

[0052] 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.

[0053] like Figure 3-Figure 5As shown, the housing 2 also includes an outer shell, and the control device is arranged between the outer shell and the drug cartridge sleeve 6. The control device includes a circuit board 9, and an indicator light 3 and a button 4 are arranged on the circuit board 9. In order to save space, the circuit board 9 is arranged vertically in the gap between the drug cartridge case 5a and the drug cartridge assembly 5, specifically between the drug cartridge case 5a and the drug cartridge 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 drug cartridge case 5a of the fan presses against the back of the circuit board 9 to support the operating part, thereby reducing the difficulty of installation and saving internal space.

[0054] At the same time, 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. It should be noted that the battery 10 is a rechargeable battery 10, and a charging interface for charging the battery 10 is provided at the bottom of the housing 2 to extend the service life of the device. In addition, 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 ammunition cover 6 is clamped between the left shell 2a and the right shell 2b, and the ammunition assembly 5 can be installed in the ammunition cover 6 in a sliding manner up and down. Figure 5 The 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 snaps, 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 closed and opened by flipping, which is convenient and hygienic to use.

[0055] 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 aerosol delivery device with replaceable drug cartridges, characterized in that: include: A drug cartridge assembly capable of atomizing a set dose of a drug into a drug aerosol; as well as A housing, wherein a mounting cavity for positioning the ammunition cartridge assembly is formed inside the housing; The top of the installation cavity has an opening, and the ammunition assembly can be loaded or taken out through the opening in a manner of sliding up and down to replace the ammunition assembly; The housing includes a cartridge sleeve, and the mounting cavity is formed in the cartridge sleeve; The drug cartridge assembly comprises an aerosol generator, a drug cartridge case and a base, a drug storage bin for storing drugs is formed between the drug cartridge case and the base, and the aerosol generator is configured to atomize the drugs into drug aerosol.

2. The drug aerosol delivery device according to claim 1, characterized in that: The top of the drug cartridge assembly is formed with a mist outlet, and the bottom of the drug cartridge assembly is formed with an air inlet.

3. The drug aerosol delivery device according to claim 1, characterized in that: The aerosol generator is a heating atomizer or an ultrasonic atomizer.

4. The drug aerosol delivery device according to claim 1, characterized in that: The ammunition shell and the base are electrically connected via a detachable electric coupler.

5. The drug aerosol delivery device according to claim 1 or 4, characterized in that: The ammunition sleeve is combined with: A flow generator is used to generate a positive pressure air flow for delivering drugs.

6. The drug aerosol delivery device according to claim 5, characterized in that: The housing also includes an outer shell, and a control device is arranged between the outer shell and the drug cartridge sleeve. The control device is configured to drive the drug cartridge assembly to output a set dose of drug aerosol according to an operation instruction, and drive the flow generator to generate a positive pressure airflow with a set flow rate.

7. The drug aerosol delivery device according to claim 5, characterized in that: The base is a flexible component, and the ammunition sleeve has an air inlet pipe sealed and combined with the base.

8. The drug aerosol delivery device according to claim 1, characterized in that: The cartridge sleeve is configured to limit the rotation of the cartridge assembly.

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