CN120346407A

CN120346407A - Aerosol inhalation device

Info

Publication number: CN120346407A
Application number: CN202510780226.6A
Authority: CN
Inventors: 李正奇; 朱梦永; 耿聪聪; 桂成龙; 肖子悦; 赵卉
Original assignee: Nanjing Licheng Pharmaceutical Co ltd; Hefei Licheng Pharmaceutical Co ltd
Current assignee: Nanjing Licheng Pharmaceutical Co ltd; Hefei Licheng Pharmaceutical Co ltd
Priority date: 2025-06-12
Filing date: 2025-06-12
Publication date: 2025-07-22
Anticipated expiration: 2045-06-12
Also published as: CN120346407B

Abstract

The invention relates to the technical field of medical equipment, in particular to an aerosol inhalation device which comprises a base, a protective shell, a dust cover and a suction nozzle assembly, wherein the protective shell is divided into an upper shell and a lower shell, a cavity for accommodating a gas cylinder and an actuating mechanism is formed in the inner side of the shell, the lower shell is matched with the base, the suction nozzle assembly is matched with the upper shell, the dust cover is matched with the suction nozzle assembly and is used for protecting the suction nozzle assembly, the top of the gas cylinder is connected with the suction nozzle assembly, the actuating mechanism abuts against the bottom of the gas cylinder, after the suction nozzle assembly is snapped, the protective shell is held and rotated by 90 degrees, the actuating mechanism pushes the gas cylinder upwards, so that the gas cylinder ejects medicines outwards through the suction nozzle assembly, and after the protective shell is released, the gas cylinder is reset. The invention innovatively changes the traditional pressing administration mode into a rotary type, and compared with a pressing type administration device, the rotary type administration device allows a patient to hold the whole device to exert force, and the required moment is smaller. The whole medicine feeder adopts streamline design, has no protruding suction nozzle and is convenient to carry.

Description

Aerosol inhalation device

Technical Field

The invention relates to the technical field of medical equipment, in particular to an aerosol inhalation device.

Background

Bronchial asthma, abbreviated as asthma, is a common chronic inflammatory airway disease, and is characterized by recurrent wheezing, shortness of breath, chest distress or cough, which are often seen or aggravated at night and in the early morning. Asthma is related to genetic and environmental factors, which mainly determine individual susceptibility, while environmental factors (such as allergen, air quality, smoking, exercise, etc.) constitute the main trigger factors. Common types of bronchial asthma include exercise-induced, medicinal, occupational, allergic asthma, etc.

At present, asthma cannot be radically cured, but symptoms can be effectively controlled through drug treatment, and the life quality of patients is obviously improved. Inhaled administration is a core administration route for asthma treatment, and has the advantage that the drug can directly act on the airway, thereby reducing the risk of systemic adverse reactions. The aerosol is used in medicine, including aerosol inhalation, aerosol inhalation solution or dry powder inhalant, etc., the common asthma treating medicine, such as salbutamol sulfate inhalation aerosol (trade name: mo Tuolin) is mainly administered by inhalation to ensure that the medicine reaches the lung and reduce systemic side effects, the product adopts a typical aerosol inhalation device, the structure is shown in figure 13, which comprises a gas bottle and a plastic shell, the patient usually needs to carry the device with the medicine, the protective cover is removed firstly, the suction nozzle is snapped, the end of the gas bottle is pressed downwards by the force of the medicine, the medicine can be conveniently sprayed from the suction nozzle, the suction nozzle is kept protruding relative to the whole inhalation device in the actual use process, obvious discomfort such as people can exist when the patient carries the medicine directly in a pocket, and the taking is inconvenient when the medicine is put in a bag;

in addition, when the asthma of the patient suddenly attacks, the patient can hardly take the protective cover off by himself due to asthma and dyspnea, the end of the gas cylinder is smaller, and the patient can hardly press the end accurately to take out the medicine.

Disclosure of Invention

The invention aims at solving the problems in the background technology, and provides an aerosol inhalation device which aims at solving the problems of unreasonable structure and inconvenient drug delivery mode of a drug feeder in the prior art.

The technical scheme of the invention is that the aerosol inhalation device comprises a base, a protective shell, a dust cover and a suction nozzle assembly, wherein the base is positioned at the bottom of a drug feeder and provides support for the whole device;

the protective shell is divided into an upper shell and a lower shell, and a cavity for accommodating the gas cylinder and the action mechanism is formed in the hollow inside of the shell;

the dust cover is matched with the suction nozzle assembly and used for protecting the suction nozzle assembly;

The top of the gas cylinder is connected with the suction nozzle assembly, the action mechanism is abutted against the bottom of the gas cylinder, after the suction nozzle assembly is snapped, the protective shell is held, the gas cylinder is rotated 90 degrees clockwise or anticlockwise, the action mechanism pushes the gas cylinder upwards, so that the gas cylinder ejects medicines outwards through the suction nozzle assembly, and after the protective shell is released, the gas cylinder is reset.

Preferably, the base is connected with the lower shell to form a whole, the middle part of the base is downwards recessed to form a mounting cavity, the actuating mechanism is arranged in the mounting cavity, and the bottom of the air bottle is abutted with the actuating mechanism after the air bottle is arranged in the medicine feeder and is moved by the actuating mechanism to control the air bottle to spray medicine.

Preferably, the actuating mechanism comprises a supporting table and an ejection mechanism, wherein the supporting table is fixed in a mounting cavity of the base, the ejection mechanism is arranged on one side of the supporting table, the supporting table and the suction nozzle assembly coaxially rotate, and in the rotating process, the ejection mechanism is contacted with different parts of the bottom of the gas cylinder, so that the gas cylinder is ejected.

The upper shell is combined with the lower shell through the bayonet lock to form a protective shell, the middle of the protective shell is an annular supporting part, at least one side of the annular supporting part extends outwards to form a holding part, and a space connected with the holding part is used for accommodating a gas cylinder.

Preferably, the grip portion is provided with anti-slip lines for increasing friction.

Preferably, the suction nozzle assembly comprises a base, a movable table, a suction nozzle and a limiting ring;

The base is provided with a shape identical to that of the protective shell and is connected with the top of the upper shell to provide a mounting platform for the suction nozzle assembly, the limiting ring is arranged on one side of the base, and the movable table is assembled on the inner side of the limiting ring and rotates relative to the limiting ring;

the bottom of the movable table is provided with a guide pipe penetrating the base and extending downwards, and the gas cylinder is connected to the guide pipe and is kept fixed;

After the gas cylinder and the suction nozzle component are installed, the axis of the gas cylinder deviates from the rotating shaft of the movable table by a certain distance, and when the biting gas nozzle base rotates relative to the movable table, the biting gas nozzle base and the gas cylinder form eccentric motion.

Preferably, an elastic piece is arranged along the periphery of the guide tube, the bottom end of the elastic piece is abutted against the top of the gas cylinder, the elastic piece is kept in a contracted state when the gas cylinder is jacked up, and elastic potential energy stored by the elastic piece is released after the protective shell is released to drive the gas cylinder to reset.

Preferably, the bottom of the gas cylinder is sunken towards one side of the cylinder body to form a sunken part, an air outlet conduit for air outlet is reserved at the top of the gas cylinder, the air outlet conduit is connected with the guide pipe and is kept fixed, and the ejection mechanism is propped against the sunken part at the bottom of the gas cylinder.

The dust cover is provided with an opening at the position opposite to the suction nozzle, and at least two layers of film materials are arranged at the opening for sealing the opening;

The bottom of the dust cover is sequentially provided with a connecting part and a supporting piece from top to bottom, wherein the supporting piece is of a hard structure and is used for clamping the suction nozzle assembly and forming an integral protection structure with the protective shell;

The connecting part deforms or collapses along the stress direction when being extruded by external force.

Preferably, the ejection mechanism is provided in a convex structure with a smooth surface.

Compared with the prior art, the invention has the following beneficial technical effects:

The invention innovatively changes the traditional pressing administration mode into a rotary type, and compared with a pressing type administration device, the rotary type administration device allows a patient to hold the whole device to exert force, and the required moment is smaller. The whole medicine feeder adopts streamline design, has no protruding suction nozzle and is convenient to carry.

In addition, unlike traditional medicine feeder, the present invention can be used directly without opening the dust cap in emergency, and this can raise medicine taking speed greatly.

Drawings

FIG. 1 is a schematic view of the overall structure of an applicator according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the internal structure of the dispenser according to the embodiment of the present invention;

FIG. 3 is a schematic view of a dust cap according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of a protective case according to an embodiment of the present invention;

FIG. 5 is a schematic view of a suction nozzle assembly according to an embodiment of the present invention;

FIG. 6 is a schematic view of an installation structure of a gas cylinder and a suction nozzle assembly according to an embodiment of the present invention;

FIG. 7 is a schematic view of a gas cylinder according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a structure of a base and an actuating mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic view of an installation structure of a gas cylinder and an actuating mechanism according to an embodiment of the present invention;

FIG. 10 is a schematic view of the position of the ejector mechanism in an initial state in the practice of the present invention;

FIG. 11 is a schematic view of a rotational ejector mechanism according to an embodiment of the present invention;

FIG. 12 is a schematic view showing the structure of a dispenser according to embodiment 2 of the present invention;

fig. 13 is a schematic view of the structure of a prior art dispenser.

Reference numerals 1, a protective shell, 11, an upper shell, 12, a lower shell, 121, a bayonet lock, 122, a holding part, 123, an annular supporting part, 2, a base, 21, a mounting cavity, 22, a supporting table, 23, an ejection mechanism, 3, a dust cover, 31, a membrane material, 32, a connecting part, a supporting piece, 4, a suction nozzle assembly, 41, a base, 42, a movable table, 43, a suction nozzle, 44, a limiting ring, 45, a guide tube, 46, an elastic piece, 5, a gas cylinder, 51, a gas outlet guide tube, 52 and a concave part.

Detailed Description

Example 1

As shown in fig. 1, the aerosol inhalation device provided by the invention comprises a base 2, a protective shell 1, a dust cover 3 and a suction nozzle assembly 4, wherein the base 2 is positioned at the bottom of a drug feeder and provides support for the whole device;

As shown in fig. 2, the protective shell 1 is divided into an upper shell 11 and a lower shell 12, and a cavity for accommodating the gas cylinder 5 and the action mechanism is formed in the hollow inside of the shell, wherein the lower shell 12 is matched with the base 2, and the suction nozzle assembly 4 is matched with the upper shell 11;

The dust cover 3 is matched with the suction nozzle assembly 4 and used for protecting the suction nozzle assembly 4, and besides the dust-proof function, the medicine feeder can be prevented from being discharged by mistake due to the fact that the suction nozzle assembly 4 is touched by mistake.

In the embodiment, the top of the air bottle 5 is connected with the suction nozzle assembly 4, the action mechanism is abutted against the bottom of the air bottle 5, after the suction nozzle assembly 4 is snapped, the protective shell 1 is held, the air bottle 5 is pushed upwards by the action mechanism after being rotated 90 degrees clockwise or anticlockwise, so that the air bottle 5 ejects medicines outwards through the suction nozzle assembly 4, and after the protective shell 1 is released, the air bottle 5 is reset.

In the embodiment, the whole structure of the protective shell 1 can be set to be arc-shaped, the whole drug feeder is in a strip shape, so that the drug feeder is smooth, the drug feeder is carried about, people are not easy to press against when placed in a pocket, meanwhile, the traditional pressing type is changed into rotary type in the use process, the whole protective shell 1 can be held for rotation, and drug delivery is facilitated.

In this embodiment, as shown in fig. 2, the base 2 is integrally connected with the lower shell 12, the upper shell 11 and the lower shell 12 are separately designed to facilitate the installation of the medicine bottle 5, as shown in fig. 8, the middle part of the base 2 is recessed downwards to form an installation cavity 21, an actuating mechanism is arranged in the installation cavity 21, and after the medicine bottle 5 is installed in the medicine feeder, the bottom of the air bottle 5 is abutted against the actuating mechanism, and the medicine bottle 5 is controlled to spray medicine through the movement of the actuating mechanism. The action mechanism comprises a supporting table 22 and an ejection mechanism 23, wherein the supporting table 22 is fixed in the installation cavity 21 of the base 2, the ejection mechanism 23 is arranged on one side of the supporting table 22, the supporting table 22 and the suction nozzle assembly 4 coaxially rotate, and in the rotating process, the ejection mechanism 23 is contacted with different parts of the bottom of the gas cylinder 5, so that the gas cylinder 5 is ejected.

As shown in fig. 7, the bottom of the gas cylinder 5 is recessed to one side of the cylinder body to form a recessed part 52, as shown in fig. 9, a gas outlet conduit 51 for discharging gas is reserved at the top of the gas cylinder 5, the gas outlet conduit 51 is connected with the guide pipe 45 and is kept fixed, and the ejection mechanism 23 is used for ejecting the recessed part 52 at the bottom of the gas cylinder. As shown in fig. 9, after the gas cylinder 5 is installed with the base 2, the supporting table 22 is kept in abutting connection with the bottom edge of the gas cylinder 5, the ejection mechanism 23 arranged on one side of the supporting table 22 is clamped into the concave part 52, as shown in fig. 10, the highest point of the ejection mechanism 23 is closer to the center of the gas cylinder 5, and is in an initial state, when a patient needs to take medicine, after the protective cover 3 is opened, the suction nozzle 43 is snapped, the protective shell 1 is held by hand to rotate 90 degrees clockwise or anticlockwise, so that the state is formed, at the moment, the supporting table 22 and the suction nozzle assembly 4 coaxially rotate, the ejection mechanism 23 is arranged on one side of the supporting table 22, and the gas cylinder 5 does not rotate in the rotating process, the ejection mechanism 23 gradually moves towards the edge position of the gas cylinder 5, the concave part 52 for enlarging the contact area is arranged at the tail end of the gas cylinder 5, and the concave part 52 is in a middle deep arc structure with the edge shallow, therefore, in the process that the ejection mechanism 23 gradually moves towards the edge position of the gas cylinder 5, the gas cylinder 5 is ejected upwards, the gas outlet conduit 51 at the top of the gas cylinder 5 is connected with the guide tube 45, the gas outlet conduit 51 at the top of the gas cylinder 5 is coaxial with the suction nozzle 45, the gas conduit is rotated, and the gas conduit 51 is conveniently ejected from the position of the suction nozzle 45, and the medicine can be conveniently ejected from the patient, and finally, the medicine can be discharged from the suction nozzle 45.

In this embodiment, as shown in fig. 4, the lower shell 12 is provided with the bayonet lock 121, the upper shell 11 is combined with the lower shell 12 through the bayonet lock 121 to form the protective shell 1, in addition, as a preferred embodiment, the bayonet lock 121 can be provided with magnetic attraction, and magnetic attraction auxiliary fixation can be realized on the basis of fixation of the bayonet lock 121 by arranging a magnetic sheet in a corresponding slot hole of the upper shell 11, when a patient installs and removes the protective shell 1 to replace the gas cylinder 5, the detachment and the installation are more convenient, and meanwhile, due to the existence of the bayonet lock 121, when the patient holds the whole protective shell 1 for rotary administration, the upper shell 11 and the lower shell 12 always keep a relatively fixed state and cannot be separated.

In addition, the middle part of the protective housing 1 is an annular supporting part 123 in the embodiment, one side of the annular supporting part 123 extends outwards to form a holding part 122, and a space where the annular supporting part 123 is connected with the holding part 122 is used for accommodating the gas cylinder 5. The annular supporting part 123 keeps a bulge state so as to facilitate the storage of the gas cylinder 5, the holding part 122 extends from the annular supporting part 123 to one side, the whole holding part 122 can be designed to be smoother, the holding part 122 is more comfortable to hold while the whole size of the drug feeder is reduced, the holding part 122 is easier to push the holding part 122 to rotate for drug delivery, in an alternative embodiment, as shown in fig. 1, the cross section of the whole drug feeder is in a water drop shape, the larger side is used for accommodating the gas cylinder 5, the smaller side is convenient to push for rotating for drug delivery, in addition, one side of the holding part 122 can be in hollow or solid filling, and the proportion can be regulated according to the weight of materials and the weight of the gas cylinder 5, so that the balance weight of the holding part 122 and the annular supporting part 123 is kept balanced. In addition, anti-slip lines for increasing friction force can be arranged on the holding part 122, the anti-slip lines can be arranged as rubber covering parts, and raised frosted lines can also be manufactured. Or other forms of anti-skid, such as raised lines, striped lines, etc.

In this embodiment, as shown in fig. 5, the suction nozzle assembly 4 includes a base 41, a movable table 42, a suction nozzle 43 and a limiting ring 44, the base 41 is provided in the same shape as the protective housing 1 and is connected to the top of the upper housing 11 to provide a mounting platform for the suction nozzle assembly 4, the suction nozzle 43 is provided in a long shape and is kept perpendicular to the holding portion 122, when the patient bites the suction nozzle 43, the holding portion 122 is in an upward state, and by means of the design of the external shape, the patient can conveniently determine the position of the suction nozzle 43 according to the position of the holding portion 122 (as shown in fig. 4), and in addition, since the patient bites the suction nozzle 43, the holding portion 122 is upward, the patient can more easily push the holding portion 122 directly, thereby performing rotational administration.

In this embodiment, the limiting ring 44 is disposed on one side of the base 41, the movable table 42 is assembled on the inner side of the limiting ring 44 and keeps rotating relative to the limiting ring 44, the suction nozzle 43 is disposed on the movable table 42, the bottom of the movable table 42 is provided with a guiding tube 45 extending downward through the base 41, the gas cylinder 5 is connected to the guiding tube 45 and keeps fixed, the guiding tube 45 can be provided in a prismatic shape, the air outlet conduit 51 can be limited from rotating after the air outlet conduit 51 is inserted into the guiding tube 45, in addition, the guiding tube 45 can be connected with the air nozzle 43 by using a flexible tube or a flexible tube, so that the connection state between the guiding tube 45 and the air nozzle 43 is ensured, and in addition, the flexible tube or the flexible tube can be provided with a longer length to compensate the displacement generated when the drug feeder rotates.

In this embodiment, after the gas cylinder 5 is mounted to the suction nozzle assembly 4, the axis of the gas cylinder is offset from the rotation axis of the movable table 42 by a predetermined distance, and the base 41 moves eccentrically with the gas cylinder 5 when the gas nozzle 43 is engaged with the movable table 42.

In this embodiment, as shown in fig. 6, an elastic member 46 is disposed along the outer periphery of the guide tube 45, the bottom end of the elastic member 46 abuts against the top of the gas cylinder 5, when the gas cylinder 5 is jacked up, the elastic member 45 maintains a contracted state, and after the protective shell 1 is released, elastic potential energy stored in the elastic member 45 is released to drive the gas cylinder 5 to reset. The bottom of the base 41 is reserved with a larger opening for the guide tube 45 to pass through, meanwhile, in the process of rotary administration, the opening provides a movement space for the guide tube 45 to avoid movement interference, the elastic piece 45 is arranged around the periphery of the guide tube 45 mainly for meeting the resetting effect of the air bottle 5, the diameter of the elastic piece 45 can be smaller to enable the elastic piece 45 to be positioned in the opening, the elastic piece can be arranged larger to enable the elastic piece to be abutted against the bottom of the base 41, when the air bottle 5 is jacked up, the elastic piece 45 can be kept in a contracted state, the ejection mechanism 23 is correspondingly arranged to be of a convex structure with a smooth surface, in the embodiment, the ejection mechanism 23 is of a convex ellipsoidal structure, and because the surface of the ejection mechanism 23 is smooth, the concave part 52 at the bottom of the air bottle 5 is also smooth, so that after a patient releases the protective shell 1, the bottom of the air bottle 5 can exert a downward force relative to the ejection mechanism 23 under the action of the elastic piece 45, and the ejection mechanism 23 can move to the original position due to the arc-shaped concave part 52 at the bottom of the air bottle 5, and the whole protective shell 1 can correspondingly rotate and reset. The height of the ejection mechanism 23 can be customized according to the concave part 52 at the bottom of the air bottle 5, and can be changed according to the stroke required by the medicine discharging of the air bottle 5, meanwhile, the eccentric distance between the installation position of the air bottle 5 and the rotating shaft can be adjusted according to the actual requirement, the ejection mechanism 23 can eject the air bottle 5 to be larger than the stroke required by the medicine discharging after the outer shell rotates for a certain angle, the shape of the ejection mechanism 23 can be adjusted according to the actual requirement, for example, a truncated cone shape, a sphere shape or a spindle shape is used, and the surface can be kept smooth and can slide relative to the concave part 52.

In this embodiment, as shown in fig. 3, the dust cover 3 has the same shape as the protective shell 1, an opening is reserved at the position where the dust cover 3 faces the suction nozzle 43, at least two layers of film materials 31 are arranged at the opening for sealing the opening, a connecting part 32 and a supporting part 33 are sequentially arranged at the bottom of the dust cover 3 from top to bottom, the supporting part 33 is a hard structure for clamping the suction nozzle assembly 4 and forming an integral protective structure with the protective shell 1, and the connecting part 32 deforms or collapses along the stress direction when being extruded by external force.

In general, a patient can open the dust cover 3 and take medicine in the normal situation, when an emergency situation is met, the dust cover 3 is not required to be opened, the medicine feeder is directly sent into the inlet, teeth are used for propping against the upper surface of the dust cover 3, the connecting part 32 is pressed downwards by force, so that the connecting part 32 is elastically deformed or is collapsed downwards, the suction nozzle 43 can burst the membrane material 31 and extend out of the opening, the suction nozzle 43 is snapped at the moment, the protective shell 1 is held and the protective shell 1 is rotated, medicine taking can be carried out, in the embodiment, the connecting part 32 is provided with flexible pieces, the connecting part 32 can be easily deformed when the upper surface of the dust cover 3 and the bottom supporting piece 33 are both in a hard structure, so that the suction nozzle 43 can burst the membrane material 31 and extend out of the opening, in the embodiment, the connecting part 32 can also be provided with a hard material and the bottom supporting piece 33 is made of the same material, and a plurality of inducing grooves can be preset on the connecting part 32, when the dust cover is pressed by external force, the connecting part 32 can be broken along the inducing grooves, so that the membrane 31 can burst out of the opening and extend out of the opening.

Example 2

As shown in fig. 12, the present embodiment provides an aerosol inhalation device, which comprises a base 2, a protective shell 1, a dust cover 3 and a suction nozzle assembly 4, wherein the base 2 is positioned at the bottom of a drug feeder and provides support for the whole device;

Unlike embodiment 1, in this embodiment, the grip portion 122 extends in two directions symmetrical along the annular support portion 123, and a space where the annular support portion 123 is connected to the grip portion 122 is used to accommodate the gas cylinder 5. The annular supporting part 123 keeps a raised state, so that the gas bottle 5 can be stored conveniently, the whole holding part 122 is smoother in appearance, more comfortable to hold and easier to push the holding part 122 to rotate for administration, in an alternative embodiment, the strip-shaped suction nozzle 43 can be parallel to the holding part 122 or vertical to the holding part 122, the middle position of the whole administration device is larger and is used for accommodating the gas bottle 5, the two ends of the administration device are smaller and are convenient to push for rotating for administration, compared with the structure in the embodiment 1, the two holding parts 122 are easier to exert force during use, and meanwhile, the whole administration device is larger in size and suitable for medicines of different types or different specifications. In addition, one side of the holding part 122 may be provided with a hollow or solid filling, and may be proportioned according to the weight of the material and the weight of the gas cylinder 5, so that the weights of the holding part 122 and the annular supporting part 123 are kept balanced.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. An aerosol inhalation device comprising a base (2), a protective shell (1), a dust cover (3) and a suction nozzle assembly (4), wherein the base (2) is positioned at the bottom of a drug feeder and provides support for the whole device;

The protective shell (1) is divided into an upper shell (11) and a lower shell (12), and a cavity for accommodating the gas cylinder (5) and the action mechanism is formed in the hollow inside of the shell, wherein the lower shell (12) is matched with the base (2), and the suction nozzle assembly (4) is matched with the upper shell (11);

the dust cover (3) is matched with the suction nozzle assembly (4) and is used for protecting the suction nozzle assembly (4);

The top of the air bottle (5) is connected with the suction nozzle assembly (4), the action mechanism is abutted against the bottom of the air bottle (5), after the suction nozzle assembly (4) is snapped, the protective shell (1) is held, the air bottle (5) is pushed upwards by the action mechanism when the air bottle is rotated 90 degrees clockwise or anticlockwise, the air bottle (5) ejects medicines outwards through the suction nozzle assembly (4), and after the protective shell (1) is loosened, the air bottle (5) is reset.

2. An aerosol inhalation device according to claim 1 characterised in that the base (2) is integrally connected to the lower housing (12), the central part of the base (2) is recessed downwards to form a mounting cavity (21), the actuating mechanism is arranged in the mounting cavity (21), and the bottom of the gas cylinder (5) abuts against the actuating mechanism after being arranged in the dispenser, and the actuation mechanism moves to control the gas cylinder (5) to spray the medicament.

3. An aerosol inhalation device according to claim 1 or 2, characterised in that the actuating mechanism comprises a support table (22) and an ejection mechanism (23), the support table (22) is fixed in the mounting cavity (21) of the base (2), the ejection mechanism (23) is arranged on one side of the support table (22), the support table (22) and the suction nozzle assembly (4) rotate coaxially, and during rotation, the ejection mechanism (23) contacts different parts of the bottom of the gas cylinder (5) so as to eject the gas cylinder (5).

4. Aerosol inhalation device according to claim 1, characterised in that the lower shell (12) is provided with a bayonet lock (121), the upper shell (11) is combined with the lower shell (12) through the bayonet lock (121) to form a protective shell (1), the middle part of the protective shell (1) is provided with an annular supporting part (123), at least one side of the annular supporting part (123) extends outwards to form a holding part (122), and a space, which is connected with the holding part (122), of the annular supporting part (123) is used for accommodating the gas cylinder (5).

5. An aerosol inhalation device according to claim 4 characterised in that the gripping portion (122) is provided with anti-slip ridges for increasing friction.

6. An aerosol inhalation device according to claim 1 characterised in that the mouthpiece assembly (4) comprises a base (41), a movable stage (42), a mouthpiece (43) and a stop collar (44);

The base (41) is provided with the same shape as the protective shell (1) and is connected with the top of the upper shell (11) to provide a mounting platform for the suction nozzle assembly (4), the limiting ring (44) is arranged on one side of the base (41), the movable table (42) is assembled on the inner side of the limiting ring (44) and keeps relative rotation with the limiting ring (44), and the suction nozzle (43) is arranged on the movable table (42);

the bottom of the movable table (42) is provided with a guide pipe (45) penetrating through the base (41) and extending downwards, and the gas cylinder (5) is connected to the guide pipe (45) and keeps fixed;

After the gas cylinder (5) and the suction nozzle assembly (4) are installed, the axis of the gas cylinder is deviated from the rotating shaft of the movable table (42) by a certain distance, and the base (41) and the gas cylinder (5) form eccentric motion when the gas nozzle (43) is snapped and rotated relative to the movable table (42).

7. The aerosol inhalation device according to claim 6, wherein an elastic member (46) is provided along the outer periphery of the guide tube (45), the bottom end of the elastic member (46) abuts against the top of the gas cylinder (5), the elastic member (45) is kept in a contracted state when the gas cylinder (5) is jacked up, and elastic potential energy stored in the elastic member (45) is released after the protective shell (1) is released to drive the gas cylinder (5) to reset.

8. An aerosol inhalation device according to claim 1 or 6, characterized in that the bottom of the gas cylinder (5) is recessed to one side of the cylinder body to form a recess (52), an air outlet conduit (51) for air outlet is reserved at the top, the air outlet conduit (51) is connected with the guide tube (45) and is kept fixed, and the ejection mechanism (23) is used for ejecting the recess (52) at the bottom of the gas cylinder.

9. The aerosol inhalation device according to claim 1, wherein the dust cover (3) is provided with the same shape as the protective shell (1), an opening is reserved at the position of the dust cover (3) opposite to the suction nozzle (43), and at least two layers of film materials (31) are arranged at the opening for sealing the opening;

the bottom of the dust cover (3) is sequentially provided with a connecting part (32) and a supporting piece (33) from top to bottom, wherein the supporting piece (33) is of a hard structure and is used for being clamped with the suction nozzle assembly (4) and forming an integral protection structure with the protective shell (1);

The connecting portion (32) deforms or collapses along the force direction when being pressed by an external force.

10. An aerosol inhalation device according to claim 3 characterised in that the ejector mechanism (23) is provided as a smooth surfaced convex structure.