Inhaler

Abstract

An inhaler according to one embodiment includes a housing having one side, another side opposite the one side, and a plurality of side surfaces connecting the one side and the other side, a mouthpiece disposed on one side of the housing, a reservoir disposed inside the housing for storing an inhalable composition, a nozzle extending from the mouthpiece to the reservoir, and a needle valve movably disposed inside the nozzle, wherein when no inhalation force is applied to the mouthpiece, the needle valve is maintained in a first state in which the nozzle is sealed, and when an inhalation force is applied via the mouthpiece, the needle valve is switched to a second state in which the nozzle is opened.

Description

[Technical field]

[0001] The inhaler is disclosed. [Background technology]

[0002] In general, an inhaler is a device used to inhale a composition such as a drug through the oral or nasal cavity in the form of a liquid or gas during the inhalation process. Such an inhaler includes a container that contains an inhalable composition, and the composition is sprayed from the container through a thin tube and finally into the oral or nasal cavity through an inhalation port, so that the composition can be inhaled by the user.

[0003] The above-mentioned background art is what the inventor possessed or acquired in the process of arriving at the contents of the disclosure of this application, and is not necessarily publicly known art that was disclosed to the general public prior to the filing of this application. [Prior art documents] [Patent documents]

[0004] Patent Document 1: Republic of Korea Registered Patent Publication No. 10-1759972 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of one embodiment is to provide an inhaler that has a valve that operates to open and close a nozzle by moving up and down in conjunction with an inhalation force, so that an inhalable composition is sprayed when a user applies inhalation force, and the amount of spray is adjusted so that the inhalable composition in fine particles is sprayed when sprayed.

[0006] The problems to be solved in the embodiments are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0007] An inhaler according to one embodiment for achieving the above object includes a housing having one side, another side opposite the one side, and a plurality of side surfaces connecting the one side and the other side, a mouthpiece disposed on one side of the housing, a reservoir disposed inside the housing for storing an inhalable composition, a nozzle extending from the mouthpiece to the reservoir, and a needle valve movably disposed inside the nozzle, wherein when no inhalation force is applied to the mouthpiece, the needle valve is maintained in a first state in which the nozzle is sealed, and when an inhalation force is applied via the mouthpiece, the needle valve is switched to a second state in which the nozzle is opened.

[0008] According to one aspect, the first state may be defined as a state in which the needle valve is in contact with the nozzle, and the second state may be defined as a state in which the needle valve is not in contact with the nozzle.

[0009] According to one aspect, the housing further includes a piston having the needle valve attached to one side thereof and capable of vertically reciprocating in a first direction from one side of the housing to the other side or a second direction from one side of the housing to the other side, and a spring installed under a preload state under the piston, wherein when no inhalation force is applied through the mouthpiece, the spring pushes the piston in the first direction to maintain the first state, and when an inhalation force is applied through the mouthpiece, the piston overcomes the preload of the spring and moves in the second direction to switch to the second state.

[0010] According to one aspect, the vape pen further includes a passage formed inside the housing and extending from one side of the mouthpiece to a lower portion of the piston, and the passage can transmit a suction force applied to the mouthpiece to the piston.

[0011] According to one aspect, the pump may further include a negative pressure forming unit that forms a space between the piston and the passage, and the negative pressure forming unit may generate negative pressure by the suction force to induce the piston to move in the second direction.

[0012] According to one aspect, the nozzle may include a first nozzle portion adjacent to the mouthpiece and a second nozzle portion adjacent to the reservoir, the first nozzle portion being formed to have a smaller diameter than the second nozzle portion.

[0013] According to one aspect, the needle valve includes a first valve portion formed at a tip and capable of vertically reciprocating between the first nozzle portion and the second nozzle portion in a first direction from one side of the housing to the other side or a second direction from one side of the housing to the other side, and a second valve portion formed below the first valve portion, and the first valve portion may be formed to have a smaller diameter than the second valve portion.

[0014] According to one aspect, the first valve portion may be formed to have a smaller diameter than the first nozzle portion.

[0015] According to one aspect, the first valve portion may not contact the nozzle in the first state or the second state, and the second valve portion may contact the nozzle in the first state and not contact the nozzle in the second state.

[0016] According to one aspect, the nozzle further includes a sealing member installed in the second nozzle portion, and the second valve portion may contact the sealing member in the first state and move in the second direction to not contact the sealing member in the second state.

[0017] According to one aspect, a first gap formed between the first valve portion and the first nozzle portion may be smaller than a second gap formed between the first valve portion and the seal member.

[0018] According to one aspect, the first gap may be formed in the first state or the second state, and the second gap may be formed in the second state.

[0019] On the one hand, the second gap allows the movement of the inhalable composition ejected from the reservoir, and the first gap can control the particle size of the inhalable composition passing through the second gap to allow movement to the mouthpiece.

[0020] According to one aspect, the first gap may be formed to be 0.015 to 0.03 mm. Effect of the Invention

[0021] According to one embodiment of the inhaler, a valve is provided that operates to open and close a nozzle by moving up and down in conjunction with the inhalation force, and when a user applies inhalation force, the inhalable composition is sprayed, and the amount of sprayed is adjusted so that the inhalable composition in fine particles is sprayed.

[0022] The effects of the inhaler according to one embodiment are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a perspective view of an inhaler according to one embodiment. [Diagram 2] FIG. 1 is a cross-sectional view of an inhaler according to one embodiment. [Diagram 3] FIG. 1 is a cross-sectional view of an inhaler according to one embodiment. [Figure 4] 1 shows the inhaler in a first state and a second state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The following drawings attached to this specification illustrate a preferred embodiment of the present invention and, together with the detailed description of the invention, serve to further understand the technical concept of the present invention. Therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings.

[0025] The terms used in the examples are merely used for the purpose of explanation and should not be construed as limiting. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this specification, the term "comprises" or "has" specifies the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, and is not to be understood as precluding the presence or additional possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0026] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments belong. Terms defined in commonly used dictionaries, etc., should be interpreted as having a meaning consistent with the contextual meaning of the relevant art, and should not be interpreted as an ideal or overly formal meaning unless clearly defined in this application.

[0027] In addition, in the description with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the drawing numerals, and duplicated description thereof will be omitted. In describing the embodiments, if it is determined that a detailed description of related publicly known technology may unnecessarily obscure the gist of the embodiments, the detailed description thereof will be omitted.

[0028] Furthermore, in describing components of the embodiments, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are used to distinguish the components from other components, and do not limit the nature, order, or sequence of the components. When a component is described as being "coupled," "coupled," or "connected" to another component, it should be understood that the component may be directly coupled or connected to the other component, but that other components may also be "coupled," "coupled," or "connected" between each component.

[0029] Components included in any of the embodiments and components having common functions will be described using the same names in other embodiments. Unless otherwise specified, the description of any of the embodiments may be applied to the other embodiments, and detailed description will be omitted to the extent that they overlap.

[0030] FIG. 1 is a perspective view of an inhaler 10 according to one embodiment.

[0031] FIG. 2 is a cross-sectional view of an inhaler 10 according to one embodiment.

[0032] FIG. 3 is a cross-sectional view of an inhaler 10 according to one embodiment.

[0033] FIG. 4 shows the inhaler 10 in a first and second condition.

[0034] Referring to FIG. 1, an inhaler 10 according to one embodiment includes a housing 101 and a mouthpiece 102.

[0035] The housing 101 may include a first surface formed on one side, a second surface opposite to the first surface, and a plurality of side surfaces connecting the first surface and the second surface. The first surface of the housing 101 may be, for example, a surface located at the top of the housing 101, and the second surface may be, for example, a bottom surface of the housing 101. Hereinafter, a direction from the second surface to the first surface is defined as a first direction, and a direction from the first surface to the second surface is defined as a second direction.

[0036] The mouthpiece 102 may be disposed on a first surface of the housing 101. A user may inhale the inhalable composition contained in the inhaler 10 through the mouthpiece 102. At this time, the user may inhale the composition, for example, in the form of an aerosol, or in the form of a powder, etc. Hereinafter, an inhaler 10 according to one embodiment will be described taking as an example an inhaler 10 that sprays the inhalable composition in the form of an aerosol.

[0037] 2, in an inhaler 10 according to an embodiment, a canister 200 containing an inhalable composition is attached inside a housing 101, and a certain amount of the composition in the canister 200 can be filled inside a reservoir 103. A user can visually check the remaining amount of the composition stored in the reservoir 103 through a display window (not shown) provided in the housing 101. A filling lever 300 that can be pressed by a user to fill the composition stored in the canister 200 inside the reservoir 103 is provided. The filling lever 300 can be located on a second surface of the housing 101, and when a user presses the filling lever 300, the filling lever 300 pushes up the bottom surface of the canister 200 in a first direction, and the nozzle of the canister 200 communicates with the reservoir 103, and the composition can move from the canister 200 to the reservoir 103 through the nozzle. In addition, the inhaler 10 according to one embodiment is provided with a counter (not shown) that counts the number of refills in conjunction with the up and down movement of the canister 200 when the reservoir 103 is refilled, and a display window (not shown) that displays the remaining amount of the composition in the canister 200. The composition stored in the reservoir 103 is sprayed in the form of an aerosol when the user applies an inhalation force to the mouthpiece 102, and at this time, an inhale interlocking valve 105 that opens and closes the reservoir 103 is operated by the inhalation force, and the opening and closing operation of the inhale interlocking valve 105 can be controlled by a piston 106. In addition, a relief valve (not shown) is installed in the reservoir 103, and a relief vent hole 400 is provided on a first surface of the housing 101. Since the relief valve is linked to the filling lever 300 by a relief bar (not shown) and a relief bar moving protrusion (not shown), the relief valve opens first to discharge residual gas from the reservoir 103 just before the filling lever 300 pushes the canister 200 up in the first direction to fill the reservoir 103. Furthermore, the inhaler 10 according to one embodiment is provided with a cover 500 and a locking device 600 for preventing the canister 200 from coming off.

[0038] The inhaler 10 described above has a needle valve system developed to solve problems that arise when aerosol is sprayed into the user's nasal or oral cavity, which is applied inside the housing 101. This needle valve system will be described in detail below with reference to Figures 3 and 4.

[0039] Generally, when a pinch valve is applied to an inhaler, when aerosol is sprayed through a nozzle having a circular cross-sectional area, the sprayed aerosol particles are too large and may wet the inside of the user's mouth. In addition, the tip of the spray nozzle is located inside the mouth, and the aerosol may hit the mouth hard when sprayed. In order to solve these problems, the present invention applies a needle valve.

[0040] Referring to FIG. 3, the inhaler 10 according to one embodiment may further include a reservoir 103, a nozzle 104, and a needle valve 105.

[0041] The reservoir 103 can be disposed within the housing 101. The reservoir 103 can store an inhalable composition.

[0042] The nozzle 104 may be in communication between the mouthpiece 102 and the reservoir 103. The nozzle 104 may be provided as a tube extending from the mouthpiece 102 to the reservoir 103.

[0043] 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. Such a needle valve 105 can open or close the nozzle 104 depending on the position inside the nozzle 104. That is, the needle valve 105 can open the nozzle 104 so that the mouthpiece 102 and the reservoir 103 are in communication with each other, or close the nozzle 104 so that the mouthpiece 102 and the reservoir 103 are isolated from each other.

[0044] In the needle valve method using these needle valves 105, the cross-sectional area for spraying the aerosol can maintain a doughnut shape because the needle-shaped valve 105 is located in the middle of the nozzle 104. Also, by spraying the aerosol in a narrower section for the same spray area, finer particles can be formed, and because the nozzle 104 for spraying the aerosol is located at the lower end of the mouthpiece 102 and away from the oral cavity, the phenomenon of hitting or wetting the inside of the oral cavity can be improved.

[0045] The nozzle 104 can be switched to either a first state or a second state by the needle valve 105. In the first state, the nozzle 104 is sealed, and in the second state, the nozzle 104 is open. In the first state, the mouthpiece 102 and the reservoir 103 can be isolated from each other. In the second state, the mouthpiece 102 and the reservoir 103 can be in communication with each other. That is, in the second state, the inhalable composition stored in the reservoir 103 can be ejected into the mouthpiece 102 through the nozzle 104 as indicated by the arrow.

[0046] Furthermore, the needle valve 105 can be operated in a suction-linked manner.

[0047] Specifically, when no suction force is applied to the mouthpiece 102, the needle valve 105 can maintain the nozzle 104 in the first state. When a suction force is applied via the mouthpiece 102, the needle valve 105 can move in a second direction to switch the nozzle 104 to the second state.

[0048] Referring back to FIG. 3, the inhaler 10 according to one embodiment may further include a piston 106, a spring 107, a passage 108, and a negative pressure generating portion 109.

[0049] The piston 106 is disposed inside the housing 101, and one end of the needle valve 105 may be coupled to one surface of the piston 106. The piston 106 can vertically reciprocate within the cylinder.

[0050] The spring 107 may be installed under the piston 106. At this time, the spring 107 may be installed in a preloaded state.

[0051] The passage 108 may be formed inside the housing 101. The passage 108 may communicate between the mouthpiece 102 and the piston 106. Specifically, one end of the passage 108 may be connected to one side of the mouthpiece 102, and the other end may be connected to the lower part of the piston 106. In this case, one end of the passage 108 may be connected to the mouthpiece 102 at a position separated from the position where the nozzle 104 is connected to the mouthpiece 102. Such a passage 108 may transmit the suction force applied to the mouthpiece 102 to the piston 106.

[0052] The negative pressure forming part 109 may be formed between the piston 106 and one end of the passage 108 connected to the piston 106. The negative pressure forming part 109 may form a space between the piston 106 and the passage 108. When an inhalation force is applied to the mouthpiece 102, the inhalation force transmitted through the passage 108 may reach the negative pressure forming part 109, and the negative pressure forming part 109 may generate negative pressure. Thus, the negative pressure forming part 109 may induce the piston 106 to move in the second direction.

[0053] As a result, when no suction force is applied to the mouthpiece 102, the spring 107 pushes the piston 106 up in the first direction, and the needle valve 105 and the nozzle 104 are maintained in the first state. On the other hand, when a suction force is applied to the mouthpiece 102, the suction force is transmitted to the negative pressure generating part 109 via the passage 108, and the negative pressure generated in the negative pressure generating part 109 causes the piston 106 to overcome the preload of the spring 107 and move in the second direction. This causes the needle valve 105 to move in the second direction, and the nozzle 104 is switched to the second state.

[0054] Referring to FIG. 4, the nozzle 104 and the needle valve 105 in the first and second states are described in more detail.

[0055] FIG. 4(a) shows the inhaler 10 in a first state, and FIG. 4(b) shows the inhaler 10 in a second state.

[0056] In the first state, the nozzle 104 and needle valve 105 may be in contact with each other while the mouthpiece 102 and reservoir 103 are isolated from each other.

[0057] In the second state, the needle valve 105 moves in the second direction so that the nozzle 104 and the needle valve 105 are no longer in contact with each other, and the mouthpiece 102 and the reservoir 103 can communicate with each other via the nozzle 104. This allows the inhalable composition in the reservoir 103 to be ejected from the reservoir 103 to the outside via the mouthpiece 102.

[0058] Specifically, the nozzle 104 may include a first nozzle portion 1041 and a second nozzle portion 1042 .

[0059] The first nozzle portion 1041 may be the portion adjacent to the mouthpiece 102 .

[0060] The second nozzle portion 1042 may be, for example, a portion located below the first nozzle portion 1041 and adjacent to the reservoir 103 .

[0061] Such a nozzle 104 may be formed such that the first nozzle portion 1041 has a smaller diameter than the second nozzle portion 1042 .

[0062] The needle valve 105 may include a first valve portion 1051 and a second valve portion 1052 .

[0063] The first valve portion 1051 may be a portion formed at the tip of the needle valve 105. The first valve portion 1051 may move adjacent to the first nozzle portion 1041 or the second nozzle portion 1042 when moved vertically by the piston 106. For example, in the first state, the first valve portion 1051 may be disposed adjacent to the first nozzle portion 1041. Also, in the second state, the first valve portion 1051 may move in the second direction to be adjacent to the second nozzle portion 1042.

[0064] The second valve portion 1052 may be, for example, a portion formed at the lower portion of the first valve portion 1051. A lower end of the second valve portion 1052 may be coupled to one surface of the piston 106. This allows the needle valve 105 to perform vertical reciprocating motion when the piston 106 performs vertical reciprocating motion.

[0065] Such a needle valve 105 may be formed such that the first valve portion 1051 has a smaller diameter than the second valve portion 1052 .

[0066] Furthermore, first valve portion 1051 may be formed to have a smaller diameter than first nozzle portion 1041. In other words, first valve portion 1051 may not be in contact with either first nozzle portion 1041 or second nozzle portion 1042 in the first state or the second state.

[0067] Meanwhile, the nozzle 104 may further include a seal member 1043 installed in the second nozzle portion 1042. The seal member 1043 may be, for example, an O-ring or a quad ring made of an elastic material such as silicone or rubber. The inner diameter of such a seal 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. The inner diameter of the seal member 1043 may also be larger than the diameter of the first nozzle portion 1041.

[0068] The second valve portion 1052 can be disposed adjacent to the seal member 1043 in the first state. That is, in the first state, the second valve portion 1052 can contact the seal member 1043. This seals the reservoir 103 against leakage of aerosol through the nozzle 104.

[0069] On the other hand, in the second state, the second valve portion 1052 may move in the second direction further than the seal member 1043 and not contact the nozzle 104. This allows the inhalable composition stored in the reservoir 103 to be ejected into the mouthpiece 102 through the nozzle 104.

[0070] 4(b), a gap formed between the first nozzle portion 1041 and the first valve portion 1051 is defined as a first gap G1, and a gap formed between the seal member 1043 and the first valve portion 1051 is defined as a second gap G2. The first gap G1 may be smaller than the second gap G2 depending on the structure of the nozzle 104 and the needle valve 105 described above.

[0071] The first gap G1 may be formed in the first state or the second state. The second gap G2 is formed when the first valve portion 1051 is disposed adjacent to the seal member 1043, and therefore may be formed in the second state in which the needle valve 105 moves in the second direction.

[0072] Such second gap G2 can allow the movement of the inhalable composition ejected from the reservoir 103. The first gap G1 can control the particle size of the aerosol that passes through the second gap G2. That is, since the first gap G1 is smaller than the second gap G2, it can only allow the movement of fine particles of the aerosol. As a result, only aerosol of a size that can pass through the first gap G1 can move to the mouthpiece 102 and be ejected to the user.

[0073] That is, when the nozzle 104 is opened by the suction force, the aerosol is ultimately sprayed to the outside through the first gap G1, but the initial spray in the reservoir 103 occurs through the second gap G2 created between the sealing member 1043 and the first valve portion 1051.

[0074] In other words, both the nozzle 104 and the needle valve 105 are processed in a straight shape, and the first gap G1 is always formed regardless of whether the nozzle 104 is open or closed, and the actual opening and closing is created between the seal member 1043 and the needle valve 105.

[0075] At this time, the first interval G1 may be formed to be 0.015 to 0.03 mm in order to inject aerosol particles of sufficiently small size. For example, if the first interval G1 is smaller than 0.015 mm, the liquid composition is difficult to move through the narrow gap, so that the liquid composition is injected toward the center of the gas, and some droplets may be weakly ejected as if boiling. On the other hand, if the first interval G1 is larger than 0.03 mm, the liquid droplets are injected toward the center of the gas, and the amount of injection per unit time is too large, so that the user may feel that the nasal cavity or oral cavity is wet. In addition, if the second interval G2 is formed too narrow due to the manufacturing tolerance of the seal member 1043, the same phenomenon as when the first interval G1 is narrow may occur, and in consideration of this, the second interval G2 may be formed to be sufficiently larger than the first interval G1. As a result, the inhaler 10 according to one embodiment is capable of injecting aerosol particles of fine size, and the amount of injection can be easily adjusted.

[0076] As described above, in the inhaler 10 according to an embodiment, the needle valve 105 may be maintained in a state in which the nozzle 104 is closed by receiving a force pushing the needle valve 105 in a first direction due to the preload of the spring 107. However, in the inhaler 10 according to an embodiment, when the user applies an inhalation force through the mouthpiece 102, a negative pressure is formed under the piston 106, which overcomes the preload of the spring 107, and the piston 106 moves downward, and the needle valve 105 connected to the piston 106 moves downward, so that a second gap G2 may be formed between the seal member 1043 and the needle valve 105. As a result, the inhalable composition in the reservoir 103 may be ejected in the form of an aerosol through the second gap G2 and the first gap G1 to the outside, for example, into the mouth of the user. When the user stops inhaling, the piston 106 and the needle valve 105 may rise upward again due to the restoring force of the spring 107, closing the nozzle 104 and interrupting the ejection of the aerosol.

[0077] As described above, although the embodiments have been described with limited drawings, those having ordinary skill in the art may apply various technical modifications and variations based on the above. For example, the described techniques may be performed in an order different from that described, and / or the components of the described systems, structures, devices, circuits, etc. may be combined or combined in a form different from that described, or may be replaced or substituted by other components or equivalents to achieve suitable results.

[0078] Therefore, other embodiments, examples, and equivalents to the claims are also within the scope of the following claims.

Claims

1. An inhaler comprising: a housing including a first surface, a second surface opposite to the first surface, and a plurality of side surfaces connecting the first surface and the second surface; A mouthpiece disposed on one surface of the housing; a reservoir disposed within said housing for storing an inhalable composition; a nozzle extending from the mouthpiece to the reservoir; a needle valve movably disposed within the nozzle; Including, When no inhalation force is applied to the mouthpiece, the needle valve is maintained in a first state in which the nozzle is sealed, When an inhalation force is applied through the mouthpiece, the needle valve is switched to a second state in which the nozzle is open; The inhaler comprises: a piston having one surface to which the needle valve is coupled and capable of vertically reciprocating in a first direction from one surface of the housing to the other surface of the housing or in a second direction from one surface of the housing to the other surface of the housing; a spring installed under the piston in a preloaded state; Further comprising: When no inhalation force is applied through the mouthpiece, the spring pushes the piston in the first direction to maintain the first state, When an inhalation force is applied through the mouthpiece, the piston overcomes the preload of the spring and moves in the second direction to switch to the second state.

2. the first state is defined as a state in which the needle valve is in contact with the nozzle; 2. The inhaler of claim 1, wherein the second condition is defined as a condition in which the needle valve is not in contact with the nozzle.

3. a passage formed within the housing and extending from one side of the mouthpiece to a lower portion of the piston; 2. The inhaler of claim 1, wherein the passage transmits inhalation force applied to the mouthpiece to the piston.

4. a negative pressure generating unit that generates a space between the piston and the passage, The inhaler of claim 3 , wherein the negative pressure generating unit generates a negative pressure by the suction force to induce the piston to move in the second direction.

5. An inhaler comprising: a housing including a first surface, a second surface opposite to the first surface, and a plurality of side surfaces connecting the first surface and the second surface; A mouthpiece disposed on one surface of the housing; a reservoir disposed within said housing for storing an inhalable composition; a nozzle extending from the mouthpiece to the reservoir; a needle valve movably disposed within the nozzle; Including, When no inhalation force is applied to the mouthpiece, the needle valve is maintained in a first state in which the nozzle is sealed, When an inhalation force is applied through the mouthpiece, the needle valve is switched to a second state in which the nozzle is open; The nozzle is A first nozzle portion adjacent to the mouthpiece; a second nozzle portion adjacent to the reservoir; Including, The first nozzle portion is formed to have a smaller diameter than the second nozzle portion.

6. The needle valve is a first valve portion formed at a tip end and vertically reciprocating between the first nozzle portion and the second nozzle portion in a first direction from the other surface of the housing to the one surface or in a second direction from the one surface of the housing to the other surface; a second valve portion formed below the first valve portion; Including, 6. The inhaler of claim 5, wherein the first valve portion is formed to be smaller in diameter than the second valve portion.

7. 7. The inhaler of claim 6, wherein the first valve portion is formed to have a smaller diameter than the first nozzle portion.

8. the first valve portion is not in contact with the nozzle in the first state or the second state, 7. The inhaler of claim 6, wherein the second valve portion contacts the nozzle in the first state and does not contact the nozzle in the second state.

9. The nozzle further includes a seal member disposed on the second nozzle portion, The inhaler of claim 6 , wherein the second valve portion contacts the seal member in the first state and moves in the second direction to not contact the seal member in the second state.

10. 10. The inhaler of claim 9, wherein a first distance formed between the first valve portion and the first nozzle portion is smaller than a second distance formed between the first valve portion and the seal member.

11. the first gap is formed in the first state or the second state, The inhaler of claim 10 , wherein the second spacing is formed in the second state.

12. the second gap permits movement of the inhalable composition ejected from the reservoir; 11. The inhaler of claim 10, wherein the first gap controls the particle size of the inhalable composition passing through the second gap to permit movement to the mouthpiece.

13. The inhaler of any one of claims 10 to 12, wherein the first spacing is formed at 0.015 to 0.03 mm.

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