inhaler

Abstract

An inhaler according to an embodiment includes a housing having one face, another face opposite to the one face, and a plurality of side surfaces connecting the one face and the other face, a mouthpiece provided at the one face of the housing, a reservoir provided inside the housing and storing an inhalable composition, a nozzle extending from the mouthpiece to the reservoir, and a needle valve movably provided inside the nozzle, the needle valve being maintainable in a first state in which the nozzle is closed when no suction force is applied to the mouthpiece, the needle valve being switchable to a second state in which the nozzle is opened when a suction force is applied through the mouthpiece.

Description

Technical Field

[0001] This invention discloses an inhaler. Background Technology

[0002] Typically, an inhaler is a device for inhaling a composition, such as a drug, in liquid or gas form through the mouth or nose during inhalation. Such an inhaler includes a container for holding the inhalable composition, and the composition is sprayed from the container through a tube and an air inlet into the mouth or nose for final inhalation by the user.

[0003] The aforementioned background technology was acquired or obtained by the inventor during the conception of this disclosure and cannot be said to be technology that was known prior to the filing of this application.

[0004] Prior art document: Korean Patent Publication No. 10-1759972 Summary of the Invention

[0005] The problem the invention aims to solve

[0006] According to one embodiment, the object is to provide an inhaler including a valve that moves up and down in conjunction with suction to actuate to open / close a nozzle so that an inhalable composition is sprayed when a user applies suction, and to adjust the spray volume so that an inhalable composition of fine particles is sprayed during spraying.

[0007] The technical problems to be solved according to the embodiments are not limited to the problems described above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

[0008] means for solving problems

[0009] An inhaler according to one embodiment for achieving the above objectives may include: a housing having one side, another side opposite to said one side, and a plurality of side surfaces connecting said one side and the other side; a mouthpiece disposed on one side of said housing; a reservoir disposed inside said housing and storing an inhalable composition; a nozzle extending from said mouthpiece to said reservoir; and a needle valve movably disposed inside said nozzle; wherein when no suction is applied to said mouthpiece, said needle valve may remain in a first state where said nozzle is closed, and when suction is applied through said mouthpiece, said needle valve may switch to a second state where said nozzle is open.

[0010] According to one aspect, the first state can be defined as the state in which the needle valve is in contact with the nozzle, and the second state can be defined as the state in which the needle valve is not in contact with the nozzle.

[0011] According to one aspect, it may also include: a piston, one side coupled to the needle valve, and reciprocating vertically in a first direction from the other side of the housing to one side or in a second direction from one side of the housing to the other side; and a spring disposed at the lower part of the piston in a preloaded state; when no suction force is applied to the nozzle, the spring can push the piston upward in the first direction to maintain the first state, and when suction force is applied through the nozzle, the piston can overcome the preload of the spring and move in the second direction to switch to the second state.

[0012] According to one aspect, it also includes a channel formed inside the housing and extending from one side of the nozzle to the lower part of the piston, the channel being able to transmit the suction force applied to the nozzle to the piston.

[0013] According to one aspect, it also includes a negative pressure forming part that forms a space between the piston and the channel, and the negative pressure forming part can guide the piston to move in the second direction by generating negative pressure through the suction force.

[0014] According to one aspect, the nozzle includes: a first nozzle portion adjacent to the suction nozzle, and a second nozzle portion adjacent to the reservoir; the first nozzle portion may be formed with a diameter smaller than that of the second nozzle portion.

[0015] According to one aspect, the needle valve includes: a first valve portion formed at the front end, capable of vertical reciprocating along a first direction from one side of the housing to one side or a second direction from one side of the housing to the other side via the first nozzle portion and the second nozzle portion; and a second valve portion formed at the lower part of the first valve portion; the first valve portion may be formed with a diameter smaller than the diameter of the second valve portion.

[0016] According to one aspect, the first valve portion may be formed with a diameter smaller than that of the first nozzle portion.

[0017] According to one aspect, the first valve portion may not contact the nozzle in either the first state or the second state, and the second valve portion may contact the nozzle in the first state, while not contacting the nozzle in the second state.

[0018] According to one aspect, the nozzle further includes a sealing member disposed in the second nozzle portion, and the second valve portion can contact the sealing member in the first state, and can move in the second direction in the second state without contacting the sealing member.

[0019] According to one aspect, the first gap formed between the first valve portion and the first nozzle portion may be smaller than the second gap formed between the first valve portion and the sealing member.

[0020] According to one aspect, the first gap can be formed in either the first state or the second state, and the second gap can be formed in the second state.

[0021] According to one aspect, the second gap can allow movement of the inhalable composition ejected from the reservoir, and the first gap can allow movement to the mouthpiece by controlling the particle size of the inhalable composition passing through the second gap.

[0022] According to one aspect, the first gap can be formed to be 0.015mm to 0.03mm.

[0023] Invention Effects

[0024] An inhaler according to one embodiment includes a valve that moves up and down in conjunction with suction to actuate to open / close a nozzle so that an inhalable composition is sprayed when the user applies suction, and the spray volume can be adjusted so that an inhalable composition of fine particles is sprayed during spraying.

[0025] The effects of the inhaler according to one embodiment are not limited to the effects described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0026] Figure 1 This is a perspective view of an inhaler according to one embodiment.

[0027] Figure 2 This is a cross-sectional view of an inhaler according to one embodiment.

[0028] Figure 3 This is a cross-sectional view of an inhaler according to one embodiment.

[0029] Figure 4 The inhaler is shown in its first and second states.

[0030] The accompanying drawings in this specification are provided to illustrate a preferred embodiment of the invention and are offered together with the detailed description to better understand the technical concept of the invention. Therefore, the invention should not be construed as being limited to the embodiments illustrated in the drawings. Detailed Implementation

[0031] The terminology used in the embodiments is for descriptive purposes only and should not be construed as limiting. Unless otherwise specified in the content, a single quantity includes multiple quantities. In this specification, terms such as "comprising" or "having" are used to express the presence of the features, numbers, steps, operations, constituent elements, accessories, or combinations thereof described in the specification, and do not exclude the presence of one or more other features, numbers, steps, operations, constituent elements, accessories, or combinations thereof, or additional functions.

[0032] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the ordinary meaning as understood by one of ordinary skill in the art. Terms that are commonly used and are identical to their dictionary definitions should be understood to have a meaning consistent with the general content of the relevant art, and should not be interpreted as having an ideal or overly formal meaning unless explicitly mentioned in this application.

[0033] Furthermore, in the description with reference to the accompanying drawings, identical constituent elements are assigned the same reference numerals, regardless of the drawing references, and repeated descriptions of these elements are omitted. In describing embodiments, detailed descriptions of relevant well-known technologies are omitted when it is determined that such detailed descriptions would unnecessarily obscure the embodiments.

[0034] Furthermore, in the description of the components of the embodiments, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are only used to distinguish one component from another, and the nature, sequence, or order of the components is not limited by these terms. When a component is described as "connected," "bonded," or "in contact" with another component, it should be understood that the component can be directly connected to or attached to the other component, or that the other component is "connected," "bonded," or "in contact" with the components.

[0035] Elements included in one embodiment and elements having common functions may be described using the same names in another embodiment. Unless otherwise stated, the description of one embodiment may be applied to other embodiments, and detailed descriptions will be omitted to the extent of repetition.

[0036] Figure 1 This is a perspective view of an inhaler 10 according to an embodiment.

[0037] Figure 2 This is a cross-sectional view of an inhaler 10 according to one embodiment.

[0038] Figure 3 This is a cross-sectional view of an inhaler 10 according to one embodiment.

[0039] Figure 4The inhaler 10 is shown in its first and second states.

[0040] Reference Figure 1 According to one embodiment, the inhaler 10 may include a housing 101 and a mouthpiece 102.

[0041] The housing 101 may include: a first surface formed on a surface; a second surface opposite to the first surface; and a plurality of side surfaces for connecting the first surface and the second surface. The first surface of the housing 101 may be, for example, a surface located on the upper part of the housing 101, and the second surface may be, for example, the bottom surface of the housing 101. Hereinafter, the direction from the second surface to the first surface is defined as a first direction, and the direction from the first surface to the second surface is defined as a second direction.

[0042] The mouthpiece 102 can be disposed on the first side of the housing 101. The user can inhale the inhalable composition contained in the inhaler 10 through the mouthpiece 102. At this time, the user can inhale the composition, such as in aerosol form or powder form. Hereinafter, an inhaler 10 according to one embodiment will be described as an example of an inhaler 10 that sprays an inhalable composition in aerosol form.

[0043] Reference Figure 2In an inhaler 10 according to one embodiment, a canister 200 for containing an inhalable composition can be installed inside a housing 101, and a reservoir 103 can be filled with a certain amount of the composition in the canister 200. The user can visually identify the remaining amount of the composition stored in the reservoir 103 through an observation window (not shown) provided in the housing 101. To fill the reservoir 103 with the composition contained in the canister 200, a filling rod 300 pressurizable by the user can be provided. The filling rod 300 can be provided on a second surface of the housing 101, and when the user presses the filling rod 300, the filling rod 300 can push the bottom surface of the canister 200 upward in a first direction, such that the injection port of the canister 200 communicates with the reservoir 103, and the composition can move from the canister 200 to the reservoir 103 through the injection port. Furthermore, according to one embodiment, the inhaler 10 may include: a counter (not shown) for counting the number of fillings in conjunction with the vertical movement of the canister 200 during the filling of the reservoir 103; and a display window (not shown) for displaying the remaining amount of composition in the canister 200. When the user applies suction to the mouthpiece 102, the composition stored in the reservoir 103 can be sprayed in the form of an aerosol. At this time, the suction opens / closes the inhalation communication valve 105 of the reservoir 103, and the opening / closing action of the inhalation communication valve 105 can be controlled by a piston 106. In addition, the reservoir 103 may be provided with pressure relief valves (not shown), and a pressure relief vent hole 400 may be provided on the first surface of the housing 101. These pressure relief valves are linked to the filling rod 300 via pressure relief rods (not shown) and pressure relief rod moving protrusions (not shown), so that the pressure relief valves are preferentially opened before the filling rod 300 pushes the canister 200 upward in the first direction to fill the reservoir 103, so as to expel residual gas in the reservoir 103. Furthermore, according to one embodiment, the inhaler 10 may include a lid 500 and a locking device 600 for preventing the canister 200 from separating.

[0044] In the aforementioned inhaler 10, a needle valve method developed to address the problem of aerosol being sprayed into the user's nasal cavity or mouth is applied inside the housing 101, and these needle valve methods will be referred to below. Figure 3 and Figure 4 Provide a detailed description.

[0045] Typically, when the clamp valve method is applied to inhalers, the aerosol particles ejected through the nozzle with a circular cross-section may be too large, potentially wetting the user's mouth. Furthermore, because the tip of the nozzle is located inside the mouth, there may be a problem of the aerosol exerting a strong impact on the mouth during ejection. To address these issues, a needle valve method is applied in this invention.

[0046] Reference Figure 3 According to one embodiment, the inhaler 10 may also include a reservoir 103, a nozzle 104, and a needle valve 105.

[0047] The reservoir 103 can be disposed inside the housing 101. The reservoir 103 can store the inhalable composition.

[0048] Nozzle 104 allows suction nozzle 102 to communicate with reservoir 103. Nozzle 104 can be configured as a tube extending from suction nozzle 102 to reservoir 103.

[0049] The needle valve 105 can be movably disposed inside the nozzle 104. For example, the needle valve 105 can move up and down inside the nozzle 104. The needle valve 105 can open or close the nozzle 104 depending on its position inside the nozzle 104. That is, the needle valve 105 can open the nozzle 104, so that the suction nozzle 102 and the storage container 103 are in communication with each other; or it can close the nozzle 104, so that the suction nozzle 102 and the storage container 103 are separated from each other.

[0050] In needle valve methods using these needle valves 105, when the needle valve 105 is located in the middle of the nozzle 104, the cross-section for spraying aerosol can maintain an annular shape. Furthermore, compared to the same spray area, finer particles can be formed by spraying aerosol from a narrower area, and since the nozzle 104 for spraying aerosol is located at the lower end of the suction nozzle 102, away from the oral cavity, the phenomenon of impact or wetting of the oral cavity can be improved.

[0051] Nozzle 104 can be switched to either a first state or a second state via needle valve 105. The first state is when nozzle 104 is closed, and the second state is when nozzle 104 is open. In the first state, mouthpiece 102 and reservoir 103 can be separated from each other. In the second state, mouthpiece 102 and reservoir 103 can be connected to each other. That is, in the second state, the inhalable composition stored in reservoir 103 can be expelled from nozzle 104 into mouthpiece 102 as indicated by the arrow.

[0052] In addition, the needle valve 105 can operate in a suction linkage mode.

[0053] Specifically, when no suction is applied to the nozzle 102, the needle valve 105 can hold the nozzle 104 in a first state. When suction is applied through the nozzle 102, the needle valve 105 can move in a second direction to switch the nozzle 104 to a second state.

[0054] Refer again Figure 3 According to one embodiment, the inhaler 10 may also include a piston 106, a spring 107, a channel 108, and a negative pressure forming part 109.

[0055] The piston 106 can be disposed inside the housing 101, and one end of the needle valve 105 can be coupled to one side of the piston 106. The piston 106 can reciprocate vertically within the cylinder.

[0056] Spring 107 can be positioned below piston 106. In this case, spring 107 can be set to a preloaded state.

[0057] Channel 108 may be formed inside housing 101. Channel 108 allows communication between nozzle 102 and piston 106. Specifically, one end of channel 108 may be connected to one side of nozzle 102, and the other end of channel 108 may be connected to the bottom of piston 106. At this location, spaced apart from the position where nozzle 104 is connected to nozzle 102, one end of channel 108 may be connected to nozzle 102. These channels 108 can transmit the suction force applied to nozzle 102 to piston 106.

[0058] A negative pressure forming section 109 may be formed between the piston 106 and one end of the channel 108 connected to the piston 106. The negative pressure forming section 109 can form a space between the piston 106 and the channel 108. When suction is applied to the nozzle 102, the suction transmitted through the channel 108 can reach the negative pressure forming section 109, and the negative pressure forming section 109 can generate negative pressure. Therefore, the negative pressure forming section 109 can guide the piston 106 to move in the second direction.

[0059] As a result, when no suction force is applied to the nozzle 102, the spring 107 can push the piston 106 upward in the first direction, keeping the needle valve 105 and the nozzle 104 in the first state. Furthermore, when suction force is applied to the nozzle 102, the suction force can be transmitted to the negative pressure forming section 109 through the channel 108, and the piston 106 can overcome the preload of the spring 107 by the negative pressure generated by the negative pressure forming section 108 and move in the second direction. Thus, the needle valve 105 can move in the second direction, and the nozzle 104 can switch to the second state.

[0060] Reference Figure 4 The nozzle 104 and needle valve 105 in the first and second states will be described in more detail.

[0061] Figure 4 Part (a) shows the inhaler 10 in its first state. Figure 4 Part (b) shows the inhaler 10 in the second state.

[0062] In the first state, the nozzle 104 and the needle valve 105 can be in contact with each other, and the suction nozzle 102 and the reservoir 103 can be separated from each other.

[0063] In the second state, the needle valve 105 can move in the second direction, such that the nozzle 104 and the needle valve 105 are not in contact with each other, and the suction nozzle 102 and the reservoir 103 can communicate with each other through the nozzle 104. Thus, the inhalable composition in the reservoir 103 can be ejected from the reservoir 103 to the outside through the suction nozzle 102.

[0064] Specifically, the nozzle 104 may include a first nozzle portion 1041 and a second nozzle portion 1042.

[0065] The first nozzle portion 1041 may be the portion adjacent to the suction nozzle 102.

[0066] The second nozzle portion 1042 may be, for example, the portion located below the first nozzle portion 1041 and adjacent to the reservoir 103.

[0067] This nozzle 104 can be configured such that the diameter of the first nozzle portion 1041 is smaller than the diameter of the second nozzle portion 1042.

[0068] The needle valve 105 may include a first valve section 1051 and a second valve section 1052.

[0069] The first valve portion 1051 may be a portion formed at the front end of the needle valve 105. When the first valve portion 1051 moves vertically by means of the piston 106, it can move to a position adjacent to the first nozzle portion 1041 or the second nozzle portion 1042. For example, in a first state, the first valve portion 1051 may be positioned adjacent to the first nozzle portion 1041. Furthermore, in a second state, the first valve portion 1051 may move in a second direction to be adjacent to the second nozzle portion 1042.

[0070] The second valve portion 1052 may be, for example, a portion formed below the first valve portion 1051. The lower end of the second valve portion 1052 may be coupled to a surface of the piston 106. Thus, when the piston 106 reciprocates vertically, the needle valve 105 may reciprocate vertically.

[0071] This needle valve 105 can be configured such that the diameter of the first valve portion 1051 is smaller than the diameter of the second valve portion 1052.

[0072] Furthermore, the first valve portion 1051 may be formed to have a smaller diameter than the first nozzle portion 1041. That is, in either the first state or the second state, the first valve portion 1051 may not be in contact with either the first nozzle portion 1041 or the second nozzle portion 1042.

[0073] On the other hand, the nozzle 104 may also include a sealing member 1043 disposed on the second nozzle portion 1042. The sealing member 1043 may be formed of an O-ring or a square ring, for example, made of an elastic material such as silicone or rubber. The inner diameter of such a sealing member 1043 may be larger than the diameter of the first valve portion 1051, and may be equal to or smaller than the diameter of the second valve portion 1052. Furthermore, the inner diameter of the sealing member 1043 may be larger than the diameter of the first nozzle portion 1041.

[0074] In the first state, the second valve portion 1052 can be positioned adjacent to the sealing member 1043. That is, in the first state, the second valve portion 1052 can contact the sealing member 1043. As a result, the reservoir 103 can be sealed, preventing aerosol leakage through the nozzle 104.

[0075] Conversely, the second valve portion 1052 can move further in the second direction than the sealing member 1043 in the second state and does not contact the nozzle 104. Thus, the inhalable composition stored in the reservoir 103 can be ejected through the nozzle 104 to the suction mouthpiece 102.

[0076] Reference Figure 4 In part (b), the gap formed between the first nozzle portion 1041 and the first valve portion 1051 is defined as the first gap G1, and the gap formed between the sealing member 1043 and the first valve portion 1051 is defined as the second gap G2. Due to the structure of the nozzle 104 and the needle valve 105 described above, the first gap G1 can be formed to be smaller than the second gap G2.

[0077] The first gap G1 can be formed in either the first state or the second state. The second gap G2 is formed when the first valve portion 1051 is positioned adjacent to the sealing member 1043, and therefore can be formed in the second state where the needle valve 105 moves in the second direction.

[0078] This second gap G2 allows movement of the inhalable composition ejected from the reservoir 103. The first gap G1 controls the particle size of the aerosol that has passed through the second gap G2. That is, since the first gap G1 is smaller than the second gap G2, the first gap G1 can only allow movement of fine aerosol particles. As a result, only aerosol particles that can pass through the first gap G1 can move to the nozzle 102 to be ejected to the user.

[0079] That is, when the nozzle 104 is opened by suction, the aerosol is eventually sprayed to the outside through the first gap G1, but the initial spray from the reservoir 103 can be performed through the second gap G2 formed between the sealing member 1043 and the first valve 1051.

[0080] That is, since both the nozzle 104 and the needle valve 105 are machined into straight shapes, a first gap G1 is always formed regardless of whether the nozzle 104 is open or closed. Therefore, the actual opening / closing is achieved between the sealing member 1043 and the needle valve 105.

[0081] In this configuration, the first gap G1 can be formed with a size of 0.015 mm to 0.03 mm to spray aerosols with sufficiently small particles. For example, if the size of the first gap G1 is less than 0.015 mm, the liquid composition has difficulty moving along the narrow gap, so it mainly sprays gas, and some droplets may be sprayed weakly, like boiling. Conversely, if the size of the first gap G1 is greater than 0.03 mm, it mainly sprays large droplets, which may result in an excessive spray volume per unit time, and the user may feel their nasal cavity or mouth being wetted. Furthermore, if the second gap G2 is formed too narrow due to manufacturing tolerances of the sealing member 1043, the same phenomenon as when the first gap G1 is narrow may occur. With this in mind, the second gap G2 can be formed to be sufficiently large than the first gap G1. Therefore, the inhaler 10 according to one embodiment can spray aerosols with fine particles, and the spray volume can be easily adjusted.

[0082] As described above, inhaler 10 according to one embodiment can maintain nozzle 104 closed by receiving a force, wherein the force is the force that pushes needle valve 105 upward in a first direction due to preload of spring 107. However, in inhaler 10 according to one embodiment, when the user applies suction through mouthpiece 102, a negative pressure can be formed on the lower part of piston 106, piston 106 can move downward by overcoming preload of spring 107, and needle valve 105 connected to piston 106 can move downward to form a second gap G2 between sealing member 1043 and needle valve 105. Therefore, inhalable composition in reservoir 103 can be ejected to the outside, for example, into the user's mouth, in the form of aerosol through the second gap G2 and through the first gap G1. When the user stops inhaling, piston 106 and needle valve 105 can move upward again due to restoring force of spring 107, and close nozzle 104 to stop aerosol ejection.

[0083] In summary, the embodiments have been described with reference to the limited accompanying drawings. Those skilled in the art can make various modifications and variations based on the description. For example, appropriate results can be obtained by performing the described techniques in a different order than the described methods, and / or by combining or integrating the described systems, structures, devices, circuits, and other constituent elements in a different manner than the described methods, or by replacing or substituting them with other constituent elements or equivalents.

[0084] Therefore, other embodiments, other implementations, and equivalents within the scope of the claims are all within the scope of the claims of this invention.

Claims

1. An inhaler, characterized in that, include: The outer casing has one side, an opposite side, and multiple side surfaces connecting the one side and the opposite side. The suction nozzle is located on one side of the housing. A reservoir, located inside the housing, stores the inhalable composition. The nozzle extends from the suction nozzle to the reservoir. A needle valve, one end of which is movably disposed inside the nozzle. The piston, with the needle valve's opposite end to the nozzle coupled to its upper portion, reciprocates vertically along a first direction from one side of the housing to the other, or a second direction from one side of the housing to the other. A spring, one end of which is preloaded and positioned at the lower part of the piston, and the other end of which is in contact with the interior of the housing; When no suction force is applied to the nozzle, the spring pushes the piston upward in the first direction, causing the needle valve to remain in the first closed state of the nozzle. When suction is applied through the nozzle, the piston overcomes the preload of the spring and moves in the second direction, causing the needle valve to switch to the second state where the nozzle is open.

2. The inhaler according to claim 1, characterized in that, The first state is defined as the state in which the needle valve is in contact with the nozzle. The second state is defined as the state in which the needle valve is not in contact with the nozzle.

3. The inhaler according to claim 1, characterized in that, Also includes: A channel is formed inside the housing and extends from one side of the nozzle to the lower part of the piston. The channel transmits the suction force applied to the nozzle to the piston.

4. The inhaler according to claim 3, characterized in that, Also includes: A negative pressure forming section creates a space between the piston and the channel. The negative pressure forming section guides the piston to move in the second direction by using the negative pressure generated by the suction.

5. The inhaler according to claim 1, characterized in that, The nozzle includes: The first nozzle portion is adjacent to the suction nozzle, and The second nozzle portion is adjacent to the reservoir; The first nozzle portion is formed with a diameter smaller than that of the second nozzle portion.

6. The inhaler according to claim 5, characterized in that, The needle valve includes: A first valve portion, formed at the front end, is capable of vertical reciprocating motion via the first nozzle portion and the second nozzle portion along a first direction from one side of the housing to one side, or a second direction from one side of the housing to the other side. A second valve section is formed at the lower part of the first valve section; The first valve section is formed with a diameter smaller than that of the second valve section.

7. The inhaler according to claim 6, characterized in that, The first valve portion is formed with a diameter smaller than that of the first nozzle portion.

8. The inhaler according to claim 6, characterized in that, The first valve section does not contact the nozzle in either the first state or the second state. The second valve section is in contact with the nozzle in the first state, but not in contact with the nozzle in the second state.

9. The inhaler according to claim 6, characterized in that, The nozzle also includes a sealing member disposed in the second nozzle portion. The second valve portion is in contact with the sealing member in the first state, and in the second state it moves in the second direction without contacting the sealing member.

10. The inhaler according to claim 9, characterized in that, The first gap formed between the first valve portion and the first nozzle portion is smaller than the second gap formed between the first valve portion and the sealing member.

11. The inhaler according to claim 10, characterized in that, The first gap is formed in either the first state or the second state. The second gap is formed in the second state.

12. The inhaler according to claim 10, characterized in that, The second gap allows for movement of the inhalable composition ejected from the reservoir. The first gap allows movement to the mouthpiece by controlling the particle size of the inhalable composition passing through the second gap.

13. The inhaler according to claim 10, characterized in that, The first gap is formed to be 0.015 mm to 0.03 mm.

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