A dry powder inhalation device

Abstract

The present invention belongs to the technical field of medical devices, and particularly relates to a dry powder inhaler device, which is mainly used for administering drugs in the form of dry powder inhalants, and mainly includes: a housing, a chamber is formed inside the housing; a plurality of capsule compartments, formed in the chamber; a driving part, having a first axis and rotatably arranged in the chamber around the first axis, wherein at least a part of the driving part protrudes in a direction perpendicular to the first axis to form a protruding part; a plurality of puncturing structures, located in the chamber, each puncturing structure is connected to a capsule compartment, wherein when the rotating part rotates, the protruding part applies a force to the adjacent puncturing structure to drive a puncturing structure to move towards the corresponding capsule compartment, so that the puncturing structure partially extends into the capsule chamber; The main problems solved are: the problem of cumbersome operation of existing devices and the problem of missing medicine capsules.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a dry powder inhalation device. Background Art

[0002] The characteristic of a dry powder inhalation device is to administer drugs in the form of dry powder inhalants. The drugs are absorbed through the rich capillaries in the lungs and respiratory mucosa, and the onset of action is very fast. In current clinical practice, dry powder inhalation devices can be classified according to the drug storage method into: capsule type, vesicle type, and reservoir type; in the capsule type of dry powder inhalation device, usually a capsule loaded with drugs is placed in the dry powder inhalation device, and by pressing to puncture the capsule, the drugs are released from the capsule and thus inhaled by the user.

[0003] For example, in the prior art with the application number: CN202310108306.8, a powder aerosol inhalation device, and in the prior art with the application number: CN202310270723.2, a dry powder inhaler, both provide a dry powder inhalation device for placing a single capsule, but the problem is that only one dry powder capsule can be broken open. When a patient needs to inhale the drugs in multiple capsules, they need to reload repeatedly, which is rather cumbersome to use.

[0004] To solve the above problems, in the prior art with the application number: CN201910685832.4, a medical extrusion type dry powder inhalation device, provides a device that can load multiple dry powder capsules at one time. By rotating a turntable capsule chamber loaded with multiple dry powder capsules, the drugs in the capsule chamber enter the medicine chamber, and they are extruded and broken open by pressing. Whenever a patient needs to inhale the drugs in multiple capsules, the above operation is repeated.

[0005] And in the prior art with the application number: CN201611270699.9, a medicine belt and a powder inhaler including the medicine belt, also provide a device that can load multiple dry powder capsules at one time. It includes a housing, a mouthpiece, an operation button, a rotating shaft, and the said medicine belt. At least one cutting and piercing component is provided on the operation button for puncturing the capsules on the medicine belt. The rotation of the rotating shaft drives the medicine belt to move forward to send the capsules on the medicine belt into the medicine chamber formed in the housing.

[0006] However, the above prior arts all have the following problems: 1. They all displace the capsules to the breaking / piercing device by rotation, and then break open the capsules by pressing or pushing, so that the drugs are released. In this operation mode, first, the capsules loaded with drugs need to be displaced, and then they are broken open, resulting in rather cumbersome operation; 2. The capsule-loaded component can only rotate unidirectionally under the action of a ratchet. When the user rotates excessively, some capsules are left out.

[0007] In view of the above problems, the present invention provides a dry powder inhalation device. Summary of the Invention

[0008] In order to overcome the problems raised in the background art, the present invention adopts the following technical solutions:

[0009] A dry powder inhalation device, comprising:

[0010] A housing, within which a chamber is formed;

[0011] A plurality of capsule compartments, formed within the chamber;

[0012] A driving part, having a first axis and rotatably disposed within the chamber about the first axis, wherein at least a part of the driving part protrudes in a direction perpendicular to the first axis to form a protruding part;

[0013] A plurality of puncturing structures, located within the chamber, each puncturing structure being connected to one of the capsule compartments, wherein when the driving part rotates, the protruding part applies a force to an adjacent puncturing structure to drive the puncturing structure to move towards the corresponding capsule compartment, such that the puncturing structure partially extends into the capsule compartment.

[0014] In some embodiments of the present application, the plurality of puncturing structures are circumferentially distributed within the chamber around the first axis;

[0015] The dry powder inhalation device further comprises:

[0016] A rotating member, rotatably connected to the housing;

[0017] A connecting shaft, connected to the rotating member and rotating synchronously therewith, wherein the connecting shaft extends into the chamber, and the axis of the connecting shaft coincides with the first axis, the driving part is connected to the connecting shaft and rotates synchronously therewith, and when the rotating member rotates, the protruding part of the driving part sequentially applies a force to each of the puncturing structures.

[0018] Furthermore, the distance between adjacent puncturing structures is the same.

[0019] In some embodiments of the present application, a plurality of the protruding parts are provided and arranged in a circumferential array around the first axis, wherein each protruding part is located between adjacent puncturing structures, and when the driving part rotates, each of the puncturing structures is simultaneously stressed and moves towards the corresponding capsule compartment.

[0020] In some embodiments of the present application, the protruding portion has a first movement path and a second movement path opposite to each other; a plurality of the puncturing structures include a first puncturing structure and a second puncturing structure, wherein the first puncturing structure is located on the first movement path within the chamber, and the second puncturing structure is located on the second movement path within the chamber. When the protruding portion rotates along the first movement path, a force is applied to the first puncturing structure, so that a part of the first puncturing structure extends into the corresponding capsule chamber. When the protruding portion rotates along the second movement path, a force is applied to the second puncturing structure, so that a part of the second puncturing structure extends into the corresponding capsule chamber.

[0021] Furthermore, the first puncturing structure and the second puncturing structure are arranged in a mirror image of each other, wherein the driving portion is disposed between the first puncturing structure and the second puncturing structure.

[0022] Furthermore, it further includes: a rotating shaft, rotatably disposed within the chamber and connected to the driving portion, wherein the rotating shaft rotates synchronously with the driving portion;

[0023] a connecting rod, one end of the connecting rod is connected to the rotating shaft, and the other end of the connecting rod extends out of the chamber. When a force is applied to the end of the connecting rod away from the rotating shaft, the connecting rod drives the rotating shaft to rotate synchronously, so that the protruding portion moves along the first movement path or the second movement path, thereby applying a force to the first puncturing structure or the second puncturing structure.

[0024] Furthermore, it further includes: a dial, the dial is disposed at the end of the connecting rod away from the rotating shaft and is slidably connected to the outer shell. When the dial slides relative to the outer shell, the rotation within the chamber is driven by the connecting rod.

[0025] In some embodiments of the present application, a plurality of the puncturing structures each include:

[0026] a contact plate, the contact plate has a contact surface and a connection surface;

[0027] a puncturing needle, disposed on the connection surface and partially extending into the wall of the capsule compartment;

[0028] an elastic member, one end of the elastic member is connected to the connection surface, and the other end of the elastic member is connected to the capsule compartment;

[0029] Among them, when the driving part rotates, the protruding part applies a force to the abutting surface, causing the puncturing needle to move towards the capsule chamber, deforming the elastic member, so that a part of the puncturing needle extends into the capsule chamber. After the abutting surface stops being stressed, the elastic member unfolds, and the abutting plate moves in a direction away from the capsule chamber under the elastic potential energy of the elastic member.

[0030] Furthermore, the abutting plate is always in contact with the outer wall of the driving part under the action of the elastic member.

[0031] Advantages of the present invention:

[0032] 1. By providing a plurality of capsule chambers, a plurality of puncturing structures and a driving part, when in use, dry powder capsules are loaded into each capsule chamber, and then by rotating the driving part, the protruding part of the driving part presses against the corresponding puncturing structure, so that the puncturing structure extends into the corresponding capsule chamber to puncture the capsule for the patient to inhale the medicine in the capsule. After the medicine in one capsule is inhaled, continue to rotate the driving part, and then the protruding part presses against the next puncturing structure, and so on until all the medicine in the capsules is inhaled; in this setting, the position of the dry powder capsule in the chamber is determined, that is, only by rotating the driving part can the dry powder capsule be disassembled, so that the user does not have to disassemble the capsule after changing the position of the capsule, which has the beneficial effect of saving operation steps.

[0033] 2. Through a plurality of capsule chambers, a plurality of puncturing structures and a driving part, when in use, the dry powder capsule can be disassembled by rotating. In this way, the user is allowed to rotate the driving part in different directions to disassemble the dry powder capsule. In addition, even if the user rotates the driving part excessively, the dry powder capsules passed through can be disassembled, thus avoiding the problem of partial capsule omission. Description of the drawings

[0034] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0035] Figure 2 is a schematic diagram of the internal structure of the chamber of the present invention;

[0036] Figure 3 is a schematic structural diagram of the nozzle assembly of the present invention;

[0037] Figure 4 is a schematic structural diagram of the driving part of the present invention;

[0038] Figure 5 is a schematic diagram of the driving part of the present invention abutting against the puncturing structure;

[0039] Figure 6Schematic diagram of the structure after the puncturing structure of the present invention is reset;

[0040] Figure 7 Schematic diagram of the driving part of the present invention abutting against the rest of the puncturing structure;

[0041] Figure 8 Schematic diagram of the positions of the first puncturing structure and the second puncturing structure of the present invention;

[0042] Figure 9 Schematic diagram of the structure of the dial and the rotating shaft of the present invention;

[0043] Figure 10 Schematic diagram of the structure of the first puncturing structure of the present invention when it is stressed;

[0044] Figure 11 Schematic diagram of the structure of the connecting rod of the present invention;

[0045] Figure 12 Schematic diagram of the cover plate and its related structure of the present invention;

[0046] Figure 13 Schematic diagram of the puncturing structure of the present invention;

[0047] Figure 14 Schematic diagram of the cross-section of the puncturing structure of the present invention;

[0048] Figure 15 For the present invention Figure 14 Partially enlarged schematic diagram of the puncturing structure;

[0049] In the figure, 1. Outer shell; 11. Chamber; 12. Capsule chamber; 13. Conversion disk; 131. Filter hole; 14. Deflector; 15. Deflection hole; 16. Suction nozzle assembly; 2. Driving part; 21. Protruding part; 3. Puncturing structure; 31. Contact plate; 32. Puncturing needle; 33. Elastic member; 4. Rotating member; 41. Connecting shaft; 5. First puncturing structure; 6. Second puncturing structure; 7. Rotating shaft; 71. Connecting rod; 72. Dial; 8. Cover plate; 81. Diversion cover plate; 82. Gear; 83. Pushing rod. Specific embodiments

[0050] The following describes clearly and completely the technical solutions in the embodiments of the present invention through specific specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0051] Figure 1 —4 shows the main technical content of this embodiment. This specific embodiment provides a dry powder inhalation device, which includes:

[0052] A housing 1, within which a chamber 11 is formed;

[0053] A plurality of capsule compartments 12, formed within the chamber 11;

[0054] A driving part 2, having a first axis and rotatably disposed within the chamber 11 about the first axis. Among them, at least a part of the driving part 2 protrudes in a direction perpendicular to the first axis to form a protruding part 21;

[0055] A plurality of puncturing structures 3, located within the chamber 11, each puncturing structure 3 being connected to a capsule compartment 12. Among them, when the driving part 2 rotates, the protruding part 21 applies a force to an adjacent puncturing structure 3 to drive a puncturing structure 3 to move towards the corresponding capsule compartment 12, so that the puncturing structure 3 partially extends into the capsule chamber.

[0056] During use, load the dry powder capsules into each capsule chamber. By rotating the driving part 2, the driving part 2 rotates about the first axis. For example, the driving part 2 rotates clockwise. At this time, the driving part 2 presses against an adjacent puncturing structure 3 in the clockwise direction, so that the puncturing structure 3 moves towards the corresponding capsule compartment 12, and then punctures the dry powder capsule in the capsule chamber for the user to inhale. When the user has inhaled all the drugs in one capsule, continue to rotate the driving part 2, and then puncture the dry powder capsule in the next capsule chamber for the user to inhale; and so on until the user has inhaled all the drugs in all the capsules.

[0057] Reference Figure 1 —6, specifically, the depth extension direction of the capsule compartment 12 is parallel to the first axis. After placing the dry powder capsule in the capsule chamber, the dry powder capsule is in a vertical state; as a further limitation, the number of capsule compartments 12 is the same as the number of puncturing structures 3, and each capsule compartment 12 has a corresponding puncturing structure 3.

[0058] More specifically, the device further includes: a conversion disk 13, which is rotatably connected to the outer shell 1. In the height direction of the outer shell 1, the conversion disk 13 is located above the outer shell 1 and covers the chamber 11. Among them, the rotation direction of the conversion disk 13 is perpendicular to the first axis. During use, a force is applied to the conversion disk 13 to lift it. At this time, the capsule chamber 12 located below the conversion disk 13 is exposed, so as to place the dry powder capsule into the capsule chamber. Further, the conversion disk 13 includes: a connecting portion and a filter plate. The connecting portion is hinged or pivotally connected to the outer shell 1, and a receiving cavity is provided through the connecting portion. The filter plate is disposed in the receiving cavity. Among them, the filter plate has a number of filter holes 131. After the conversion disk 13 covers the chamber 11, each filter hole 131 corresponds to a capsule chamber 12. In this way, when the patient inhales the drug, the drug is inhaled into the patient's body after passing through the filter hole 131. Preferably, the number of filter holes 131 is the same as the number of capsule chambers 12.

[0059] A deflector plate 14 is rotatably disposed in the receiving cavity. In the height direction of the receiving cavity, the deflector plate 14 is located above the filter plate. The deflector plate 14 is provided with a deflector hole 15 through it. Among them, the deflector plate 14 is configured to rotate synchronously with the driving part 2. After the protruding part 21 of the driving part 2 drives a puncturing structure 3 to puncture the dry powder capsule in the corresponding capsule chamber 12, at this time, the deflector hole 15 rotates with the driving part 2 to the upper part of the capsule chamber 12 and is connected to the capsule chamber 12 through the filter hole 131. At this time, the deflector hole 15 and the filter hole 131 are in a concentric state, so that the drug in the capsule can be sucked out.

[0060] A protection plate is connected to the connecting portion and is located above the connecting portion in the height direction of the receiving cavity. Among them, the protection plate has a number of mounting grooves, and the number of mounting grooves is arranged in a circumferential array on the protection plate.

[0061] The nozzle assembly 16 has a main branch pipe and several sub-branch pipes. Each sub-branch pipe is connected to the main branch pipe. Wherein, one end of each sub-branch pipe away from the main branch pipe is located in the installation groove. When the protruding part 21 of the driving part 2 pierces the dry powder capsule in a capsule chamber 12, under the action of the diversion hole 15, one sub-branch pipe is connected to the capsule chamber 12 located below the diversion hole 15. In use, the user holds the main branch pipe in the mouth. After the protruding part 21 of the driving part 2 drives a puncturing structure 3 to pierce the dry powder capsule in the corresponding capsule chamber 12, the diversion hole 15 moves below the port of one sub-branch pipe and is connected to the corresponding capsule chamber 12 through the diversion hole 15 and the filtering hole 131. At this time, the user inhales. Under the action of the suction force, the drug in the dry powder capsule is inhaled into the body through this sub-channel, thus completing the inhalation of the drug. After the drug in this capsule chamber 12 is inhaled, the driving part 2 is rotated again. At this time, the diversion hole 15 is displaced below the port of another sub-branch pipe, so as to continue to supply the user to inhale the drug.

[0062] Reference Figure 1 —2 and Figure 4 —6. In this embodiment, several puncturing structures 3 are circumferentially distributed in the chamber 11 around the first axis. Under this setting, when the driving part 2 rotates, the protruding part 21 can sequentially apply pressure to each puncturing structure 3. For example, when the driving part 2 rotates clockwise, the protruding part 21 first applies pressure to the first puncturing mechanism in the clockwise direction to break the capsule in the capsule chamber 12 corresponding to this puncturing structure 3. Then, continue to rotate the driving part 2 in the clockwise direction, and the capsules in each capsule chamber can be broken sequentially, thus avoiding the problem of capsule omission.

[0063] In this embodiment, it further includes: a rotating member 4 and a connecting shaft 41. The rotating member 4 is rotatably connected to the outer shell 1. The connecting shaft 41 is connected to the rotating member 4 and rotates synchronously with the rotating member 4. Among them, the connecting shaft 41 extends into the chamber 11, and the axis of the connecting shaft 41 coincides with the first axis. The driving part 2 is connected to the connecting shaft 41 and rotates synchronously with the connecting shaft 41. When the rotating member 4 rotates, the protruding part 21 of the driving part 2 applies force to each puncturing structure 3 in sequence; specifically, in the height direction of the outer shell 1, the rotating member 4 is located below the outer shell 1. During use, the user twists the rotating member 4. At this time, the rotating member 4 drives the driving part 2 to rotate in the chamber 11 through the connecting shaft 41, thereby applying pressure to the puncturing structure 3, prompting a part of the puncturing structure 3 to extend into the corresponding capsule chamber 12 to complete the puncturing of the capsule; in addition, one end of the connecting shaft 41 away from the rotating member 4 passes through the filter plate and is detachably connected to the flow guide plate 14. Thus, when the rotating member 4 rotates, it can also drive the flow guide plate 14 to rotate synchronously, so that the flow guide holes 15 communicate with the corresponding capsule chambers 12; among them, the connecting shaft 41 and the flow guide plate 14 can adopt a concave-convex fit. In this way, after the connecting part is lifted, the flow guide plate 14 can be disconnected from the connecting shaft 41, exposing the chamber 11 of the outer shell 1, and then facilitating the user to replace the dry powder capsule.

[0064] Specifically, a keyway is provided on the outer wall of the connecting shaft 41. Correspondingly, a connecting hole is provided on the driving part 2. When connecting the two, a flat key is installed in the keyway so that when the connecting shaft 41 rotates, the driving part 2 rotates synchronously with the connecting shaft 41; alternatively, the cross-section of the connecting shaft 41 is in a non-circular shape, and the cross-section of the connecting hole is the same as that of the connecting shaft 41. After the connecting shaft 41 penetrates into the connecting hole, it can drive the driving part 2 to move synchronously therewith.

[0065] Reference Figure 2 and Figure 5 —7, specifically, in this embodiment, the driving part 2 is a cam. When the cam rotates, its protruding part 21 forms an abutting relationship with the puncturing structure 3, thereby pushing the puncturing structure 3 to move, and thus disassembling the dry powder capsule in the capsule chamber 12.

[0066] Specifically, the distance between adjacent puncturing structures 3 is the same. Under normal conditions, the protruding part 21 is located between two puncturing structures 3. Preferably, each puncturing structure 3 is in an abutting relationship with the outer wall of the driving part 2; thus, it is avoided that the puncturing structure 3 is disconnected from the capsule chamber 12 when it does not move towards the capsule chamber 12.

[0067] In addition, in this embodiment, 3 to 5 capsule compartments 12 are provided, preferably 3. Correspondingly, the number of puncturing structures 3 is the same as the number of capsule compartments 12, and each puncturing structure 3 is also distributed in a circumferential array around the first axis. In this setting, when the rotating member 4 rotates in the same rotating direction, each rotation can drive a puncturing structure 3 to break the dry powder capsule in its corresponding capsule compartment 12, so as to facilitate the user to record the number of drug inhalations.

[0068] As can be understood by those skilled in the art, this embodiment can also be set to break all the capsules simultaneously. For example, a plurality of protruding portions 21 are provided and are arranged in a circumferential array around the first axis. Among them, each protruding portion 21 is located between adjacent puncturing structures 3. When the driving portion 2 rotates, the respective puncturing structures 3 are simultaneously stressed and move toward the corresponding capsule compartments 12, thereby realizing the breaking of the dry powder capsules in all the capsule compartments 12. Correspondingly, in this setting, the number of flow guiding holes 15 on the flow guiding plate 14 is the same as the number of capsule compartments 12. In this way, after all the dry powder capsules are broken, the user can inhale the drugs in multiple capsules at one time, thereby improving the drug inhalation efficiency.

[0069] Reference Figure 8 -12, in this embodiment, the protruding portion 21 has a first movement path and a second movement path that are opposite to each other. In this setting, the plurality of puncturing structures 3 include a first puncturing structure 5 and a second puncturing structure 6. Among them, the first puncturing structure 5 is located on the first movement path in the chamber 11, and the second puncturing structure 6 is located on the second movement path in the chamber 11. When the protruding portion 21 rotates along the first movement path, it applies a force to the first puncturing structure 5, so that a part of the first puncturing structure 5 extends into the corresponding capsule bin. When the protruding portion 21 rotates along the second movement path, it applies a force to the second puncturing structure 6, so that a part of the second puncturing structure 6 extends into the corresponding capsule bin. More specifically, the distance between the first movement path and the second movement path is the same. In use, by rotating the protruding portion 21 along the first movement path, the protruding portion 21 can be made to move away from the second puncturing structure 6, thereby breaking the dry powder capsule in the capsule bin corresponding to the first puncturing structure 5 individually. Conversely, when the protruding portion 21 rotates along the second movement path, the protruding portion 21 can be made to move away from the first puncturing structure 5, thereby breaking the dry powder capsule in the capsule bin corresponding to the second puncturing structure 6 individually. In this setting, the user inhales the drugs in each capsule in sequence, so as to ensure that the user's attraction will not be dispersed when inhaling the drugs, thereby increasing the inhalation rate of a single capsule. Moreover, in this setting, the user does not have to break the capsule after changing its position, which has the beneficial effect of saving operation steps. More specifically, both the first movement path and the second movement path are in the shape of an arc.

[0070] Specifically, the first puncture structure 5 and the second puncture structure 6 are arranged in a mirror image with each other, wherein the driving portion 2 is located between the first puncture structure 5 and the second puncture structure 6; preferably, the first puncture structure 5 and the second puncture structure 6 are both in abutment with the protrusion 21, and when the driving portion 2 rotates, the protrusion 21 can apply force to the first puncture structure 5 or the second puncture structure 6, thereby improving the efficiency of breaking the dry powder capsules; as can be understood by those skilled in the art, under this arrangement, the number of capsule compartments 12 is two, and the two capsule compartments 12 are also arranged in a mirror image, and the first puncture structure 5 and the second puncture structure 6 are respectively connected to one of the two capsule compartments 12.

[0071] Alternatively, the driving portion 2 is away from the first puncture structure 5 and the second puncture structure 6 in the chamber 11, wherein the protrusion 21 extends between the first puncture structure 5 and the second puncture structure 6, and when the driving portion 2 rotates, the protrusion 21 applies force to the first puncture structure 5 or the second puncture structure 6.

[0072] refer to Figure 9 —11. In this arrangement, in order to realize the rotation of the driving part 2, the following method is adopted: the rotating shaft 7 is rotatably arranged in the chamber 11 and connected to the driving part 2, wherein the rotating shaft 7 rotates synchronously with the driving part 2; one end of the connecting rod 71 is connected to the rotating shaft 7, and the other end of the connecting rod 71 extends out of the chamber 11, wherein when a force is applied to the end of the connecting rod 71 away from the rotating shaft 7, the connecting rod 71 drives the rotating shaft 7 to rotate synchronously, so that the protruding part 21 moves along the first moving path or the second moving path, thereby Apply force to the first puncture structure 5 or the second puncture structure 6; when in use, the user applies force to the end of the connecting rod 71 extending from the chamber 11, so that the rotating shaft 7 rotates in the chamber 11, and then drives the driving part 2 to rotate, so that the protrusion 21 applies force to the first puncture structure 5 or the second puncture structure 6; more specifically, a first sliding groove is opened from the outer wall of the shell 1 to the direction of the chamber 11, wherein the connecting rod 71 extends from the first sliding groove, so that the connecting rod 71 can be displaced when subjected to force.

[0073] Preferably, it also includes: a paddle 72, which is arranged at one end of the connecting rod 71 away from the rotating shaft 7 and is slidably connected to the shell 1, wherein when the paddle 72 slides relative to the shell 1, it is driven to rotate in the chamber 11 by the connecting rod 71; more specifically, a second slide groove is also opened from the outer wall of the shell 1 to the chamber 11, and the second slide groove is located above the first slide groove in the height direction of the shell 1, and the paddle 72 is partially installed in the second slide groove to form a connection relationship with the shell 1; under this arrangement, it is easier for the user to apply force to the connecting rod 71 to cause the rotating shaft 7 to rotate, thereby improving the efficiency of breaking the capsule.

[0074] In addition, referring to Figure 8 —12, in this embodiment, the following settings are made on how to enable the patient to inhale the drug in the capsule chamber 12;

[0075] The cover plate 8 is rotatably connected to the outer shell 1. In the height direction of the outer shell 1, the cover plate 8 is located above the outer shell 1 and covers the chamber 11. Among them, the cover plate 8 has two first filtering parts and second filtering parts that are mirror images of each other. When the cover plate 8 covers the chamber 11, the first filtering part and the second filtering part respectively correspond to the two capsule chambers 12. When the patient inhales the drug, the drug is inhaled into the patient's body after passing through the first filtering part or the second filtering part.

[0076] The diversion cover plate 8 is located on the side of the cover plate 8 facing away from the chamber 11 and is slidably arranged between the first filtering part and the second filtering part. Among them, the diversion cover plate 8 is configured to close the second filtering part when the protruding part 21 moves along the first movement path to apply force to the first puncturing structure 5, so that the first filtering part is opened. Conversely, when the protruding part 21 moves along the first movement path to apply force to the first puncturing structure 5, the first filtering part is closed, so that the second filtering part is opened.

[0077] The gear 82 and the lever 83. Among them, the gear 82 and the lever 83 are located on the side of the cover plate 8 facing away from the chamber 11. The gear 82 is connected to the rotating shaft 7 and rotates synchronously with the rotating shaft 7. The lever 83 is rotatably connected to the cover plate 8. Among them, a ratchet tooth is provided at one end of the lever 83 close to the gear 82 and meshes with the gear 82 through the ratchet tooth. The end of the lever 83 far from the gear 82 abuts against the guide plate 14. When the rotating shaft 7 drives the protruding part 21 to move along the first movement path, the lever 83 rotates in the direction opposite to the first movement path under the drive of the gear 82, thereby pushing the guide plate 14 to close the second filtering part; conversely, when the rotating shaft 7 drives the protruding part 21 to move along the second movement path, the lever 83 rotates in the direction opposite to the second movement path under the drive of the gear 82, thereby pushing the guide plate 14 to close the first filtering part.

[0078] In this setting method, the nozzle assembly 16 has a main branch pipe and two sub-branch pipes. Each sub-branch pipe is communicated with the main branch pipe. The end of each sub-branch pipe far from the main branch pipe is separately communicated with the first filtering part and the second filtering part. When in use, the user holds the main branch pipe in the mouth. After the protruding part 21 of the driving part 2 drives the first puncturing structure 5 to puncture the dry powder capsule in the corresponding capsule chamber 12, the first filtering part is opened. At this time, the user performs an inhalation action, and the drug in the dry powder capsule is inhaled into the body under the action of suction. Vice versa.

[0079] Referring to Figure 1 —2, Figure 4 —7 andFigure 14 -15. In this embodiment, several puncturing structures 3 each include: a contact plate 31, a puncturing needle 32, and an elastic member 33; the contact plate 31 has a contact surface and a connection surface, the puncturing needle 32 is disposed on the connection surface and partially extends into the wall of the capsule chamber 12, one end of the elastic member 33 is connected to the connection surface, and the other end of the elastic member 33 is connected to the capsule chamber 12; wherein, when the driving part 2 rotates, the protruding part 21 applies a force to the contact surface, causing the puncturing needle 32 to move towards the capsule chamber 12 and deforming the elastic member 33, so that the puncturing needle 32 partially extends into the capsule chamber. After the contact surface stops being stressed, the elastic member 33 expands, and the contact plate 31 moves away from the capsule chamber 12 under the elastic potential energy of the elastic member 33; more specifically, at least a part of the contact surface is an arc surface. When the driving part 2 rotates, the protruding part 21 abuts against the arc surface, causing the contact plate 31 to move towards the capsule chamber 12; in addition, the outer wall of the capsule chamber 12 is provided with a pore channel, wherein the sharp end of the puncturing needle 32 extends into this pore channel. Further, the axis of this pore channel is perpendicular to the first axis. Under the limitation of the pore channel, when the contact plate 31 is pressed by the protruding part 21, the contact plate 31 moves linearly towards the capsule chamber 12 along the extension direction of the axis of the pore channel until the elastic member 33 is compressed to the minimum range. At this time, the puncturing needle 32 punctures the dry powder capsule located in the capsule chamber 12. When the protruding part 21 loses the abutting relationship with this contact surface, the contact plate 31 moves linearly towards the driving member under the action of the elastic member 33, so that the contact plate drives the puncturing needle 32 to reset; thus, it will not affect the replacement of the drug in the capsule chamber 12.

[0080] Preferably, the contact plate 31 is always in contact with the outer wall of the driving part 2 under the action of the elastic member 33, so that both the pore channel and the driving part 2 can limit the contact plate 31, and further the puncturing needle 32 will not be separated from the drug delivery chamber.

[0081] More specifically, multiple puncturing needles 32 are provided, and among them, the multiple puncturing needles 32 are arranged in an array in the length direction of the contact plate 31; in this setting, when disassembling the dry powder capsule, multiple release holes can be formed on the surface of the capsule at one time, which is convenient for the user to inhale the drug; correspondingly, the number of pore channels is the same as the number of puncturing needles 32; and the end of the elastic member 33 far from the capsule chamber is connected between adjacent puncturing needles 32. Preferably, the number of puncturing needles 32 is 2.

[0082] More specifically, the elastic member 33 is a spring; a first placement groove is opened on the outer wall of the capsule chamber 12, a second placement groove is opened on the connection surface of the contact plate 31, one end of the spring is disposed in the first placement groove, and the other end of the spring is disposed in the second placement groove, so that the contact plate 31 is always far from the capsule chamber 12.

[0083] Alternatively, the spring is disposed around the outer wall of the puncturing needle 32. In this setting, the number of springs is the same as the number of puncturing needles 32, such that one spring is wound around the outer wall of each puncturing needle 32. Similarly, one end of the spring abuts against the outer wall of the capsule chamber 12, and the other end of the spring abuts against the connection surface.

[0084] Usage method of the present invention:

[0085] 1. Load the dry powder capsules into each capsule chamber. By applying force to the rotating member / paddle, the rotating shaft / connecting shaft rotates. At this time, the protruding portion of the driving portion presses against an adjacent abutting plate.

[0086] 2. After the abutting plate is stressed, under the restriction of the hole, it moves linearly towards the capsule chamber to break the dry powder capsule in the capsule chamber, so that the drug is released. Then, under the action of the spring, the abutting plate drives the puncturing needle to reset.

[0087] 3. The user sucks the drug in the dry powder capsule through the nozzle assembly. When the user finishes sucking the drug in one capsule, continue to rotate the driving portion to further puncture the dry powder capsule in the next capsule chamber for the user to suck. Repeat this process until the user finishes sucking the drugs in all the capsules.

[0088] The description of the above embodiments is only for understanding the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements can still be made to the present invention, and these improvements will also fall within the protection scope of the claims of the present invention.

Claims

1. A dry powder inhalation device, comprising, characterized in that, a housing, within which a chamber is formed; a plurality of capsule compartments, formed within the chamber; a driving part, having a first axis and rotatably disposed within the chamber about the first axis, wherein at least a part of the driving part protrudes in a direction perpendicular to the first axis to form a protruding part; a plurality of puncturing structures, located within the chamber, each puncturing structure being connected to one of the capsule compartments, wherein when the driving part rotates, the protruding part applies a force to an adjacent puncturing structure to drive the puncturing structure to move towards the corresponding capsule compartment, such that the puncturing structure partially extends into the capsule compartment; each of the plurality of puncturing structures includes: a contact plate, the contact plate having a contact surface and a connection surface; a puncturing needle, disposed on the connection surface and partially extending into the wall of the capsule compartment; an elastic member, one end of the elastic member being connected to the connection surface, and the other end of the elastic member being connected to the capsule compartment; wherein when the driving part rotates, the protruding part applies a force to the contact surface, causing the puncturing needle to move towards the capsule compartment and deforming the elastic member, such that the puncturing needle partially extends into the capsule compartment, and after the contact surface stops being stressed, the elastic member unfolds and the contact plate moves in a direction away from the capsule compartment under the elastic potential energy of the elastic member.

2. The dry powder inhalation device according to claim 1, wherein, The plurality of puncturing structures are circumferentially distributed within the chamber about the first axis; The dry powder inhalation device further includes: a rotating member, the rotating member being rotatably connected to the housing, a connecting shaft, the connecting shaft being connected to the rotating member and rotating synchronously with the rotating member, wherein the connecting shaft extends into the chamber, and the axis of the connecting shaft coincides with the first axis, the driving part being connected to the connecting shaft and rotating synchronously with the connecting shaft, and when the rotating member rotates, the protruding part of the driving part sequentially applies a force to each of the puncturing structures.

3. The dry powder inhalation device according to claim 2, characterized in that, The distance between adjacent puncturing structures is the same.

4. The dry powder inhalation device according to claim 1, characterized in that, A plurality of the protruding parts are provided and arranged in a circumferential array about the first axis, wherein each protruding part is located between adjacent puncturing structures, and when the driving part rotates, each of the puncturing structures is simultaneously stressed to move towards the corresponding capsule compartment.

5. The dry powder inhalation device according to claim 1, characterized in that, The protruding part has a first movement path and a second movement path opposite to each other; The plurality of puncturing structures include a first puncturing structure and a second puncturing structure, wherein the first puncturing structure is located on the first movement path within the chamber, and the second puncturing structure is located on the second movement path within the chamber. When the protruding part rotates along the first movement path, a force is applied to the first puncturing structure to cause the first puncturing structure to partially extend into the corresponding capsule compartment, and when the protruding part rotates along the second movement path, a force is applied to the second puncturing structure to cause the second puncturing structure to partially extend into the corresponding capsule compartment.

6. The dry powder inhalation device according to claim 5, wherein, The first puncturing structure and the second puncturing structure are arranged in a mirror image of each other, wherein the driving part is disposed between the first puncturing structure and the second puncturing structure.

7. The dry powder inhalation device according to claim 5, characterized in that, Further included are: A rotating shaft, rotatably disposed in the chamber and connected to the driving part, wherein the rotating shaft rotates synchronously with the driving part; A connecting rod, one end of the connecting rod is connected to the rotating shaft, and the other end of the connecting rod extends out of the chamber. When a force is applied to the end of the connecting rod away from the rotating shaft, the connecting rod drives the rotating shaft to rotate synchronously, so that the protruding part moves along the first moving path or the second moving path, thereby applying a force to the first puncturing structure or the second puncturing structure.

8. The dry powder inhalation device according to claim 7, characterized in that, Further included are: A dial, the dial is disposed at the end of the connecting rod away from the rotating shaft and is slidably connected to the housing. When the dial slides relative to the housing, the rotation in the chamber is driven by the connecting rod.

9. The dry powder inhalation device according to claim 1, characterized in that, The abutting plate is always abutted against the outer wall of the driving part under the action of the elastic member.

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