A dry powder inhaler with a rotating multi-capsule channel that sequentially opens for inhalation

Abstract

The present invention belongs to the technical field of medical devices, and particularly relates to a dry powder inhalation device with a rotating multi-capsule channel that is sequentially opened for inhalation, which is mainly used for administering in the form of a dry powder inhalant, and includes: a mouthpiece; a housing, a chamber is formed inside the housing; a plurality of capsule compartments are formed in the chamber and can be communicated with the mouthpiece; a diversion part is movably arranged between the mouthpiece and the plurality of capsule compartments to communicate the mouthpiece with one capsule compartment; a driving part is connected to the housing and the diversion assembly, and the driving part can rotate relative to the housing to drive the diversion assembly to move between the mouthpiece and the plurality of capsule compartments, so that different capsule compartments are communicated with the mouthpiece, solving the problem that: in the existing multi-capsule powder inhaler, when the user inhales the drug through the mouthpiece, the mouthpiece is communicated with each capsule compartment, resulting in the user's suction being dispersed into each capsule compartment, making it difficult for the user to inhale the drug, and thus reducing the inhalation efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a dry powder inhaler in which a rotating multi-capsule channel is sequentially opened for inhalation. Background Art

[0002] The characteristic of a dry powder inhalation device is to administer the drug in the form of a dry powder inhalant. The drug is absorbed through the rich capillaries in the lungs and respiratory mucosa, and the onset of action is very fast. Clinically, dry powder inhalation devices can be classified into capsule type, vesicle type, and reservoir type according to the drug storage method; in the capsule type of dry powder inhalation device, usually a capsule loaded with the drug is placed in the dry powder inhalation device, and the drug is released from the capsule by pressing and piercing the capsule, so as to be inhaled by the user. For the existing capsule type of dry powder inhalation device, it can be divided into single-capsule type and multi-capsule type. In the single-capsule type of dry powder inhalation device, a single medicine capsule or a certain amount of medicine powder is put into the capsule chamber, and the capsule chamber is closed. Only a single prescription drug can be inhaled at a time. Therefore, it is necessary to repeatedly replace the medicine capsule, which is inconvenient to use.

[0003] To solve the above problems, in the prior art with the application number CN202320451518.1, a dual-capsule powder inhaler provides a technical solution that can load multiple medicine capsules at the same time. It discloses: including a base, the top of the base is connected with an upper cover through an installation component, a mouthpiece is arranged on the top of the upper cover, a channel plate is arranged between the base and the upper cover, a powder outlet cavity is formed between the inner wall of the upper cover and the top surface of the channel plate, a capsule opening cavity is formed between the inner wall of the base and the bottom surface of the channel plate, a capsule opening mechanism is slidably arranged on the inner wall of the capsule opening cavity, a powder outlet mechanism is arranged at the top of the channel plate, and air inlets are symmetrically arranged on both sides of the powder outlet mechanism on the inner wall of the channel plate for communicating the powder outlet cavity, the air inlets and the capsule opening cavity. The capsule opening mechanism includes a capsule seat, a capsule chamber, a slider, a first cutting knife, a second cutting knife, a chute and other technical solutions.

[0004] As well as the prior art application number CN201811186154.9, a dual-capsule dry powder inhaler device provides a technical solution capable of loading multiple medicine capsules simultaneously, which discloses: including a main body, the main body is provided with two independent capsule chambers; a filter seat, the filter seat covers the two capsule chambers, and the filter seat is provided with a filter corresponding to each capsule chamber; a mouthpiece, the mouthpiece is arranged corresponding to the filter seat, so that the capsule chamber communicates with the mouthpiece through the filter; each chamber is correspondingly provided with a puncture button member for puncturing; the main body is provided with an air flow channel communicating with the chamber, so that the capsule chamber communicates with the atmospheric environment through the air flow channel; simultaneously actuating the two puncture button members, so that the two puncture button members simultaneously pierce into the corresponding capsule chambers. The puncture button member includes a pressing part, a puncture needle and a return spring; the main body is provided with a slideway, so that the pressing part can reciprocate along the slideway; an uneven matching structure is arranged at the contact position between the slideway and the pressing part; the puncture needle is installed at the end of the pressing part close to the capsule chamber; the return spring is arranged outside the puncture needle and accommodated in the main body.

[0005] However, in the above prior art, when the user inhales the medicine through the mouthpiece, the mouthpiece is communicated with each capsule chamber, resulting in the user's suction being dispersed into each capsule chamber, making it difficult for the user to inhale the medicine, and thus leading to the problem of reduced inhalation efficiency.

[0006] The present invention aims at the above problems and provides a dry powder inhaler device in which a rotating multi-capsule channel is sequentially opened for inhalation. Summary of the Invention

[0007] In order to overcome the problems raised in the background art, the present invention adopts the following technical solutions:

[0008] A dry powder inhaler device in which a rotating multi-capsule channel is sequentially opened for inhalation, which includes:

[0009] A mouthpiece; a housing, a chamber is formed inside the housing; a plurality of capsule chambers are formed in the chamber and can be communicated with the mouthpiece; a guiding part is movably arranged between the mouthpiece and the plurality of capsule chambers for communicating the mouthpiece with one of the capsule chambers; a driving part is connected to the housing and the guiding part, wherein the driving part can rotate relative to the housing to drive the guiding part to move between the mouthpiece and the plurality of capsule chambers, so that different capsule chambers are communicated with the mouthpiece.

[0010] In some embodiments of the present application, the capsule chamber includes: a first capsule chamber and a second capsule chamber which are spaced apart from each other;

[0011] The diversion part includes: a conversion disk, which is rotatably connected to the outer shell. In the height direction of the outer shell, the conversion disk is located above the outer shell and covers the chamber. Among them, the conversion disk has a sliding area; a first filter hole and a second filter hole, which are formed in the sliding area and penetrate through the conversion disk. Among them, the first filter hole corresponds to the first capsule chamber to communicate the first capsule chamber with the suction nozzle, and the second filter hole corresponds to the second capsule chamber to communicate the second capsule chamber with the suction nozzle; a diversion cover plate, which is slidably arranged in the sliding area, and the diversion cover plate is configured to be able to move linearly in the direction of the first filter hole and the second filter hole; a transmission component, which is located in the sliding area and is connected to the driving part. Among them, the transmission component is configured to drive the diversion cover plate to move in the direction of the first filter hole or the second filter hole when the driving part rotates relative to the outer shell, so that the first filter hole or the second filter hole is covered.

[0012] Further, the first capsule chamber and the second capsule chamber are arranged in a mirror image of each other.

[0013] Further, the diversion cover plate has a first abutting wall and a second abutting wall that are opposite to each other;

[0014] The transmission component includes: a gear, which is rotatably arranged in the sliding area and is connected to the driving part. Among them, when the driving part rotates relative to the outer shell, the gear rotates synchronously with the driving part; a lever, which is rotatably arranged in the sliding area. The lever has an engaging end and a pushing end. Among them, the engaging end has a rotating shaft, and the outer wall of the engaging end is provided with teeth. The engaging end is engaged with the gear through the teeth, and the pushing end extends between the first abutting wall and the second abutting wall; among them, when the gear rotates, the engaging end rotates around the rotating shaft in a direction opposite to the rotation direction of the gear, so that the pushing end moves towards the first abutting wall or the second abutting wall to push the diversion cover plate to cover the first filter hole or the second filter hole.

[0015] In this embodiment, the driving part includes: a rotating shaft, which is rotatably arranged in the chamber and is detachably connected to the gear. Among them, the rotating shaft has a first rotation direction and a second rotation direction that are opposite to each other; 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. Among them, 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 in the first rotation direction or the second rotation direction.

[0016] Further, when the rotating shaft rotates in the first rotation direction, the gear drives the pushing end of the lever to move towards the second abutting wall to cover the second filtering hole;

[0017] When the rotating shaft rotates in the second rotation direction, the gear drives the pushing end of the lever to move towards the first abutting wall to cover the first filtering hole.

[0018] Further, the end of the rotating shaft away from the connecting rod is in concave-convex fit with the gear.

[0019] In some embodiments of the present application, the housing has a first axis, and a plurality of the capsule chambers are circumferentially distributed in the chamber around the first axis; the guiding part includes: a connecting disk, which is rotatably connected to the housing, and in the height direction of the housing, the connecting disk is located above the housing and covers the chamber, wherein the connecting disk has a receiving groove, and a plurality of filtering holes are penetratingly arranged in the receiving groove, and each filtering hole corresponds to one of the capsule chambers to communicate each capsule chamber with the suction nozzle; a guiding cover plate, which is arranged in the receiving groove and is connected to the driving part, wherein the guiding cover plate has a guiding hole; wherein, when the driving part rotates relative to the housing, the guiding cover plate rotates synchronously with the driving part so that the guiding hole communicates with one of the filtering holes, and further enables the filtering hole to communicate with the suction nozzle.

[0020] Further, the driving part includes: a transmission shaft, which is rotatably arranged in the chamber and is detachably connected to the guiding cover plate; a rotating part, which is connected to the housing and the transmission shaft and can rotate axially around the first axis, wherein when the rotating part rotates, the guiding cover plate rotates synchronously with the rotating part through the transmission shaft so that the guiding hole can sequentially communicate with each of the filtering holes.

[0021] In an embodiment of the present application, the suction nozzle includes a main branch channel and a plurality of sub-branch channels, and the sub-branch channels are all communicated with the main branch channel, wherein the number of the sub-branch channels is the same as the number of the capsule chambers.

[0022] Advantages of the present invention:

[0023] 1. By setting multiple capsule compartments, a diversion part, and a driving part, when the user needs to inhale the drugs in multiple capsules during the medication process, the diversion part is used to connect one capsule compartment to the mouthpiece, so that the user's suction force on the drugs will not be dispersed, thereby improving the drug inhalation rate. After inhaling all the drugs in one capsule, through the driving part, the diversion part can be successively connected to the remaining capsule compartments, so as to ensure that the same inhalation efficiency can be maintained when inhaling the drugs in each capsule, and the problem of repeatedly replacing the medicine capsule is avoided.

[0024] 2. By setting a mouthpiece including a main branch channel and several sub-branch channels, multiple capsule compartments, a diversion part, and a driving part, during use, each capsule compartment can be separately connected to the mouthpiece, which can not only ensure the drug inhalation efficiency but also load multiple medicine capsules at one time, saving the operation steps when inhaling drugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the diversion part of the present invention;

[0027] Figure 3 It is a schematic diagram of the internal structure of the chamber of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the transmission component of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the diversion cover plate of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure after the second filter hole of the present invention is covered;

[0031] Figure 7 It is a schematic diagram of the structure after the first filter hole of the present invention is covered;

[0032] Figure 8 It is a schematic diagram of the structure of the first capsule compartment and the second capsule compartment of the present invention;

[0033] Figure 9 It is a schematic diagram of the structure of the rotating shaft and the lever of the present invention;

[0034] Figure 10 It is a schematic diagram of the structure of the first filter hole and the second filter hole of the present invention;

[0035] Figure 11 It is a schematic diagram of the overall structure of the present invention under another embodiment;

[0036] Figure 12 It is a schematic diagram of the structure of the diversion cover plate of the present invention;

[0037] Figure 13 Schematic diagram of the filter hole structure of the present invention;

[0038] Figure 14 Schematic diagram of the connection plate structure of the present invention;

[0039] Figure 15 Schematic diagram of the transmission shaft and rotating member structure of the present invention;

[0040] Figure 16 Schematic diagram of the puncturing needle structure of the present invention;

[0041] Figure 17 Schematic diagram of the abutting plate structure of the present invention;

[0042] Figure 18 Schematic diagram of the suction nozzle structure of the present invention;

[0043] Figure 19 Schematic diagram of the structure of the suction nozzle of the present invention under another embodiment;

[0044] In the figure, 1. Outer shell; 11. Chamber; 12. Capsule compartment; 121. First capsule compartment; 122. Second capsule compartment; 13. Partition; 2. Conversion disk; 21. Sliding area; 211. First filter hole; 212. Second filter hole; 213. Installation groove; 214. First limiting part; 215. Second limiting part; 216. Sliding part; 22. Diversion cover plate; 221. First abutting wall; 222. Second abutting wall; 23. Gear; 24. Lever; 25. Rotating shaft; 26. Connecting rod; 3. Connection plate; 31. Accommodating groove; 32. Filter hole; 33. Diversion cover plate; 331. Diversion hole; 34. Transmission shaft; 35. Rotating member; 4. Abutting plate; 41. Puncturing needle; 42. Elastic member; 5. Suction nozzle; 51. Main branch channel; 52. Sub-branch channel; 53. Connection plate. Specific embodiments

[0045] The technical solutions in the embodiments of the present invention are clearly and completely described below through specific specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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 embodiments. 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 making creative efforts belong to the scope of protection of the present invention.

[0046] Figure 1—3 shows the main technical content of this embodiment. This specific embodiment provides a dry powder inhaler with a rotating multi-capsule channel that is sequentially opened for inhalation, which includes: a housing 1 with a mouthpiece 5, and a chamber 11 is formed inside the housing 1; several capsule compartments 12 are formed in the chamber 11; a diversion part is movably arranged between the mouthpiece 5 and the several capsule compartments 12 for communicating the mouthpiece 5 with one capsule compartment 12; a driving part is connected to the housing 1 and the diversion part. Among them, the driving part can rotate relative to the housing 1, driving the diversion part to move at least partially between the mouthpiece 5 and the several capsule compartments 12 so that different capsule compartments 12 are connected to the mouthpiece 5.

[0047] During use, load the dry powder capsules into each capsule compartment 12. By rotating the driving part, the diversion part connects the mouthpiece 5 with one capsule compartment 12. At this time, the user can inhale the medicine powder in this capsule compartment 12 through the mouthpiece 5. After inhaling the medicine powder in this capsule compartment 12, rotate the driving part again so that the diversion part connects other capsule compartments 12 with the mouthpiece 5, so that the user can continue to inhale the medicine powder in the remaining capsule compartments 12 until all the medicine in all capsule compartments 12 is inhaled.

[0048] Reference Figure 1 、 Figure 3 And Figure 8 Specifically, it further includes: a partition 13, which is arranged in the chamber 11 and is at the same horizontal height as the top of the capsule compartment 12 in the height direction of the housing 1. Among them, the partition 13 has several notches, and each capsule compartment 12 is exposed from the corresponding notch; in this setting, when the mouthpiece 5 and the diversion part are far away from the chamber 11, the chamber 11 will not be exposed, thus avoiding foreign objects from entering the chamber 11.

[0049] Reference Figure 2 —6, in this embodiment, the capsule compartment 12 can be set to two, which includes: a first capsule compartment 121 and a second capsule compartment 122. Among them, the first capsule compartment 121 and the second capsule compartment 122 are spaced apart from each other. During use, by loading dry powder capsules into the first capsule compartment 121 and the second capsule compartment 122, the user can inhale multiple pills during one medication process, which avoids repeatedly replacing the medicine capsules and saves the medication steps.

[0050] More specifically, the first capsule compartment 121 and the second capsule compartment 122 are mirror images of each other.

[0051] In this setting, the diversion part includes: a conversion disk 2, a diversion cover plate 22, and a transmission assembly. The conversion disk 2 is rotatably connected to the outer shell 1. In the height direction of the outer shell 1, the conversion disk 2 is located above the outer shell 1 and covers the chamber 11. Among them, the conversion disk 2 has a sliding area 21, and the first filter holes 211 and the second filter holes 212 are provided in the sliding area 21. The first filter holes 211 and the second filter holes 212 penetrate through the conversion disk 2. The first filter holes 211 correspond to the first capsule chamber 121 to connect the first capsule chamber 121 with the suction nozzle 5, and the second filter holes 212 correspond to the second capsule chamber 122 to connect the second capsule chamber 122 with the suction nozzle 5. The diversion cover plate 22 is slidably arranged in the sliding area 21. The diversion cover plate 22 is configured to be able to move linearly in the direction of the first filter holes 211 and the direction of the second filter holes 212. The transmission assembly is located in the sliding area 21 and is connected to the driving part. Among them, the transmission assembly is configured to drive the diversion cover plate 22 to move in the direction of the first filter holes 211 or the second filter holes 212 when the driving part rotates relative to the outer shell 1, so that the first filter holes 211 or the second filter holes 212 are covered. During use, for example, after the capsule in the first capsule chamber 121 is broken, at this time, the diversion cover plate 22 covers the second filter holes 212, so that the first capsule chamber 121 is connected to the suction nozzle 5 through the first filter holes 211, and then the user can inhale the drug in the first capsule chamber 121. When it is necessary to inhale the drug in the second capsule chamber 122, by rotating the driving part, at this time, the diversion cover plate 22 moves in the direction of the first filter holes 211 under the action of the transmission assembly to cover the first filter holes 211. In this way, when the user inhales the drug, only one capsule chamber 12 is connected to the suction nozzle 5, so that the suction force of the user on the drug will not be dispersed, thereby improving the inhalation efficiency when inhaling multiple drugs.

[0052] Reference Figure 5—8. More specifically, the rotation direction of the conversion disk 2 is perpendicular to the height extension direction of the capsule chamber 12. During use, a force is applied to the conversion disk 2 to lift it up. At this time, the capsule chamber 12 located below the conversion disk 2 is exposed, and dry powder capsules can be placed into the capsule chamber 12. In addition, the conversion disk 2 has a first surface and a second surface opposite to each other. Among them, the sliding area 21 includes: a mounting groove 213 opened from the first surface to the second surface. The mounting groove 213 has a first limiting portion 214, a second limiting portion 215, and a sliding portion 216. The first limiting portion 214 and the second limiting portion 215 are mirror images of each other. The sliding portion 216 is located between the first limiting portion 214 and the second limiting portion 215 and is connected to the first limiting portion 214 and the second limiting portion 215. The first filter hole 211 is formed in the first limiting portion 214, and the second filter hole 212 is formed in the second limiting portion 215. Among them, the diversion cover plate 22 extends at least partially into the first limiting portion 214 and the second limiting portion 215. During use, the diversion cover plate 22 slides in the sliding portion 216 driven by the transmission component. At the same time, the first limiting portion 214 and the second limiting portion 215 limit the diversion cover plate 22, so that the diversion cover plate 22 moves linearly within the first limiting portion 214, the second limiting portion 215, and the sliding portion 216, thereby covering one of the first filter hole 211 and the second filter hole 212.

[0053] More specifically, the diversion cover plate 22 has a first abutting wall 221 and a second abutting wall 222 opposite to each other. The transmission component partially extends between the first abutting wall 221 and the second abutting wall 222. When the driving portion rotates relative to the housing 1, the transmission component can partially abut against the first abutting wall 221 or the second abutting wall 222, thereby pushing the diversion cover plate 22 to move linearly.

[0054] Reference Figure 2—8, in this setting, the transmission assembly can be set as: a gear 23 and a lever 24. The gear 23 is rotatably arranged in the sliding area 21 and connected to the driving part. Among them, when the driving part rotates relative to the housing 1, the gear 23 rotates synchronously with the driving part; the lever 24 is rotatably arranged in the sliding area 21. The lever 24 has an engaging end and a pushing end. Among them, the engaging end has a rotating shaft 25, and the outer wall of the engaging end is provided with teeth. The engaging end is engaged with the gear 23 through the teeth. The pushing end extends between the first abutting wall 221 and the second abutting wall 222; among them, when the gear 23 rotates, the engaging end rotates around the rotating shaft 25 in the direction opposite to the rotation direction of the gear 23, so that the pushing end moves towards the first abutting wall 221 or the second abutting wall 222 to push the diversion cover plate 22 to cover the first filter hole 211 or the second filter hole 212; as a further explanation, the rotation directions of the gear 23 and the engaging end of the lever 24 are opposite to each other. For example, when the first capsule chamber 121 is communicated with the suction nozzle 5, the gear 23 rotates clockwise. At this time, the engaging end rotates counterclockwise, so that the pushing end abuts against the second abutting wall 222, and further the diversion cover plate 22 covers the second filter hole 212.

[0055] To drive the gear 23, refer to Figure 1 and Figure 3 —9. In this embodiment, the driving part includes: a rotating shaft 25 and a connecting rod 26. The rotating shaft 25 is rotatably arranged in the chamber 11 and detachably connected to the gear 23. Among them, the rotating shaft 25 has a first rotation direction and a second rotation direction opposite to each other; one end of the connecting rod 26 is connected to the rotating shaft 25, and the other end of the connecting rod 26 extends out of the chamber 11. Among them, when a force is applied to the end of the connecting rod 26 far from the rotating shaft 25, the connecting rod 26 drives the rotating shaft 25 to rotate in the first rotation direction or the second rotation direction; specifically, when the rotating shaft 25 rotates in the first rotation direction, the gear 23 drives the pushing end of the lever 24 to move towards the second abutting wall 222 to cover the second filter hole 32; when the rotating shaft 25 rotates in the second rotation direction, the gear 23 drives the pushing end of the lever 24 to move towards the first abutting wall 221 to cover the first filter hole 32. In this way, when the user sucks the drug, one of the first capsule chamber 121 and the second capsule chamber 122 is communicated with the suction nozzle 5, so as to improve the drug suction rate.

[0056] Specifically, the end of the rotating shaft 25 far from the connecting rod 26 is in concave-convex fit with the gear 23. Specifically, the sliding area 21 has a through hole, the gear 23 has a semi-cylindrical first linkage shaft, and the linkage shaft extends into the through hole. The end of the rotating shaft 25 far from the connecting rod 26 is integrally connected with a second linkage shaft. After the connecting disk 3 covers the chamber 11, a cylindrical shape is formed between the first linkage shaft and the second linkage shaft. In this way, when the rotating shaft 25 rotates, it drives the gear 23 to rotate synchronously.

[0057] In addition, referring to Figure 1 and Figure 10 , the chamber 11 further has a puncturing structure for puncturing the capsules in the capsule chamber 12. Specifically, the puncturing structure includes a first puncturing structure and a second puncturing structure that are mirror images of each other. The first puncturing structure and the second puncturing structure are the same in structure. Among them, the first puncturing structure is connected to the first capsule chamber 121, and the second puncturing structure is connected to the second capsule chamber 122. The rotating shaft 25 is located between the first puncturing structure and the second puncturing structure. In addition, a cam is connected to the rotating shaft 25, and the outer wall of the cam abuts against the first puncturing structure and the second puncturing structure. When the rotating shaft 25 rotates in the first rotation direction, the cam abuts against the first puncturing structure, so that a part of the first puncturing structure enters the first capsule chamber 121, thereby puncturing the capsule in the first capsule chamber 121 and releasing the drug in the capsule. In specific use, the user rotates the connecting rod 26 in the first rotation direction. At this time, the first puncturing structure punctures the capsule in the first capsule chamber 121. At the same time, the pushing end of the lever 24 abuts against the second abutting wall 222, so that the diversion cover plate 22 moves towards the second filter hole 212, and then the first capsule chamber 121 is communicated with the suction nozzle 5 through the first filter hole 211, so that the user can inhale the drug; on the contrary, when the connecting rod 26 is rotated in the second rotation direction, the capsule in the second capsule chamber 122 is punctured, and the suction nozzle 5 is communicated with the second capsule chamber 122. In this setting, while puncturing the capsule in one capsule chamber 12, the capsule chamber 12 can also be communicated with the suction nozzle 5, so as to improve the rate at which the user inhales the drug in a single capsule and avoid repeatedly replacing the medicine capsule in the capsule chamber 12.

[0058] Referring to Figure 11 -13, in other embodiments, the housing 1 has a first axis, and a plurality of capsule chambers 12 are circumferentially distributed in the chamber 11 around the first axis; in this setting, the diversion part includes: a connecting disk 3 and a diversion cover plate 33. The connecting disk 3 is rotatably connected to the housing 1. In the height direction of the housing 1, the connecting disk 3 is located above the housing 1 and covers the chamber 11. Among them, the connecting disk 3 has a receiving groove 31, and a plurality of filter holes 32 are penetrated in the receiving groove 31. Each filter hole 32 corresponds to a capsule chamber 12 to communicate each capsule chamber 12 with the suction nozzle 5; the diversion cover plate 33 is arranged in the receiving groove 31 and is connected to the driving part. Among them, the diversion cover plate 33 has a diversion hole 331; wherein, when the driving part rotates relative to the housing 1, the diversion cover plate 33 rotates synchronously with the driving part, so that the diversion hole 331 is communicated with a filter hole 32, and then the filter hole 32 is communicated with the suction nozzle 5. In this setting, multiple medicine capsules can be loaded at the same time, so that the user can inhale the drugs in each capsule chamber 12 through the suction nozzle 5 in turn.

[0059] In addition, as can be understood by those skilled in the art, the connection manner between the connection plate 3 and the outer shell 1 is the same as the connection manner between the conversion plate 2 and the outer shell 1 described above, and will not be elaborated here.

[0060] Reference Figure 13 —16, in this setting mode, the driving part may include a transmission shaft 34 and a rotating part 35. The transmission shaft 34 is rotatably arranged in the chamber 11 and is detachably connected to the diversion cover plate 33. The rotating part 35 is connected to the outer shell 1 and the transmission shaft 34 and can rotate axially around the first axis. When the rotating part 35 rotates, the diversion cover plate 33 rotates synchronously with the transmission shaft 34 and the rotating part 35, so that the diversion holes 331 can be sequentially communicated with each filtering hole 32. Thus, after the user sucks up the medicine in one capsule chamber 12, the medicine powder in the remaining capsules can be sucked up in sequence.

[0061] In addition, as can be understood by those skilled in the art, the connection manner between the transmission shaft 34 and the diversion cover plate 33 is the same as the connection manner between the rotating shaft 25 and the gear 23 described above, and will not be elaborated here.

[0062] Reference Figure 14 —16, in this embodiment, a plurality of puncturing structures are arranged in the chamber 11, and each puncturing structure is connected to a capsule chamber 12. Among them, the plurality of puncturing structures are circumferentially distributed in the chamber 11 around the first axis. In this setting mode, a cam is connected to the transmission shaft 34 and rotates synchronously with the transmission shaft 34. Each puncturing structure abuts against the outer wall of the cam. When the transmission shaft 34 rotates, for example, when the transmission shaft 34 rotates in the clockwise direction, the cam applies a force to the first puncturing structure in the clockwise direction, so that the puncturing structure partially extends into the corresponding capsule chamber 12 to puncture the medicine capsule in the capsule chamber 12. At the same time, the diversion cover plate 33 rotates with the transmission shaft 34. After the medicine capsule in the capsule chamber 12 is punctured, its diversion hole 331 is displaced above the capsule chamber 12, so that the capsule chamber 12 is communicated with the suction nozzle 5. After the medicine in the capsule chamber 12 is sucked up, the rotating part 35 is continuously rotated in the same direction to puncture the capsules in the remaining capsule chambers 12.

[0063] Reference Figure 14—17, in this embodiment, an implementation manner of the puncturing structure is provided. Specifically, the puncturing structure includes: a contact plate 4, a puncturing needle 41, and an elastic member 42; the contact plate 4 has a contact surface and a connection surface; the puncturing needle 41 is disposed on the connection surface and partially extends into the wall of the capsule chamber 12; one end of the elastic member 42 is connected to the connection surface, and the other end of the elastic member 42 is connected to the capsule chamber 12; wherein, when the cam rotates, a force is applied to the contact surface, so that the puncturing needle 41 moves towards the capsule chamber 12, and the elastic member 42 is deformed, so that the puncturing needle 41 partially extends into the capsule chamber. After the contact surface stops being stressed, the elastic member 42 expands, and the contact plate 4 moves in a direction away from the capsule chamber 12 under the elastic potential energy of the elastic member 42; more specifically, a pore passage is disposed on the outer wall of the capsule chamber 12, wherein the sharp end of the puncturing needle 41 extends into the pore passage. Further, the axis of the pore passage is perpendicular to the first axis. Under the limitation of the pore passage, when the contact plate 4 is pressed by the cam, the contact plate 4 moves linearly towards the capsule chamber 12 along the extension direction of the axis of the pore passage until the elastic member 42 is compressed to the minimum range. At this time, the puncturing needle 41 punctures the dry powder capsule located in the capsule chamber 12. When the cam loses the contact relationship with the contact surface, the contact plate 4 moves linearly in the direction of the driving member under the action of the elastic member 42, so that the contact plate drives the puncturing needle 41 to reset; thus, it will not affect the replacement of the drug in the capsule chamber 12.

[0064] More specifically, a plurality of puncturing needles 41 are provided, and the plurality of puncturing needles 41 are arranged in an array in the length direction of the contact plate 4; in this setting, when disassembling the dry powder capsule, a plurality of 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 passages is the same as the number of puncturing needles 41; and the end of the elastic member 42 away from the capsule chamber is connected between adjacent puncturing needles 41. Preferably, the number of puncturing needles 41 is 2.

[0065] More specifically, the elastic member 42 is a spring; a first placement groove is formed on the outer wall of the capsule chamber 12, and a second placement groove is formed on the connection surface of the contact plate 4. 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 4 is always away from the capsule chamber 12.

[0066] Or, the spring is wound around the outer wall of the puncturing needle 41. In this setting, the number of springs is the same as the number of puncturing needles 41, so that one spring is wound around the outer wall of each puncturing needle 41. 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.

[0067] Reference Figure 1 —2 and Figure 18—19, in this embodiment, the nozzle 5 includes a main branch channel 51 and a plurality of sub-branch channels 52. Each sub-branch channel 52 communicates with the main branch channel 51. Among them, each sub-branch channel 52 is connected to a capsule chamber 12, and the number of sub-branch channels 52 is the same as the number of capsule chambers 12.

[0068] More specifically, the nozzle 5 further has a connecting plate 53. The connecting plate 53 is fixedly connected to the conversion disk 2, so that when the conversion disk 2 is lifted, the nozzle 5 moves accordingly. Further, the connecting plate 53 is provided with communication holes having the same number as the sub-branch channels 52, and each sub-branch channel 52 communicates with one communication hole.

[0069] As can be understood, in another embodiment, the connection manner between the connecting plate 53 and the connecting disk 3 is the same as the connection manner between the connecting plate 53 and the conversion disk 2, which will not be elaborated here.

[0070] The usage method of the present invention:

[0071] 1. Load the dry powder capsules into each capsule chamber. By rotating the cam, the capsule in one capsule chamber is broken by the puncturing structure. At this time, the guiding part connects the nozzle with one capsule chamber, and the user can suck the powder in this capsule chamber through the nozzle.

[0072] 2. After sucking the powder in this capsule chamber, rotate the driving part again so that the cam breaks the capsule in the adjacent capsule chamber. At the same time, the guiding part also switches the capsule chamber connected to the nozzle accordingly, so that the user can continue to suck the powder in the remaining capsule chambers.

[0073] 3. After sucking the drugs in all capsule chambers, lift the conversion disk to replace the dry powder capsules in each capsule chamber.

[0074] 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 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 inhaler with a rotating multi-capsule channel that is sequentially opened for inhalation, comprising, characterized in that, A mouthpiece; A housing, within which a chamber is formed; A plurality of capsule compartments, formed within the chamber and capable of communicating with the mouthpiece; A diversion portion, movably disposed between the mouthpiece and the plurality of capsule compartments, for communicating the mouthpiece with one of the capsule compartments; A drive portion, connected to the housing and the diversion portion, wherein the drive portion is capable of rotating relative to the housing to drive the diversion portion to move between the mouthpiece and the plurality of capsule compartments, so that different capsule compartments communicate with the mouthpiece; The capsule compartment includes: a first capsule compartment and a second capsule compartment that are spaced apart from each other; The diversion portion includes: A conversion disk, rotatably connected to the housing. In the height direction of the housing, the conversion disk is located above the housing and covers the chamber. Wherein, the conversion disk has a sliding area; A first filter hole and a second filter hole, formed within the sliding area and penetrating through the conversion disk. Wherein, the first filter hole corresponds to the first capsule compartment to communicate the first capsule compartment with the mouthpiece, and the second filter hole corresponds to the second capsule compartment to communicate the second capsule compartment with the mouthpiece; A diversion cover plate, slidably disposed within the sliding area, and the diversion cover plate is configured to be able to linearly move in the direction of the first filter hole and the direction of the second filter hole; A transmission assembly, located within the sliding area and connected to the drive portion. Wherein, the transmission assembly is configured to drive the diversion cover plate to move in the direction of the first filter hole or the second filter hole when the drive portion rotates relative to the housing, so that the first filter hole or the second filter hole is covered.

2. The rotary multi-capsule channel sequential opening and inhaling dry powder inhaler according to claim 1, wherein, The first capsule compartment and the second capsule compartment are mirror images of each other.

3. The rotary multi-capsule channel sequential opening and inhalation dry powder inhaler according to claim 1, characterized in that, The diversion cover plate has a first abutting wall and a second abutting wall that are opposite to each other; The transmission assembly includes: a gear, rotatably disposed within the sliding area and connected to the drive portion. Wherein, when the drive portion rotates relative to the housing, the gear rotates synchronously with the drive portion; A lever, rotatably disposed within the sliding area. The lever has an engaging end and a pushing end. Wherein, the engaging end has a rotating shaft, and the outer wall of the engaging end is provided with teeth. The engaging end meshes with the gear through the teeth, and the pushing end extends between the first abutting wall and the second abutting wall; Wherein, when the gear rotates, the engaging end rotates around the rotating shaft in a direction opposite to the rotation direction of the gear, so that the pushing end moves towards the first abutting wall or the second abutting wall to push the diversion cover plate to cover the first filter hole or the second filter hole.

4. The rotary multi-capsule channel sequential opening and inhaling dry powder inhaler according to claim 3, wherein The drive portion includes: A rotating shaft, rotatably disposed within the chamber and detachably connected to the gear. Wherein, the rotating shaft has a first rotation direction and a second rotation direction that are opposite to each other; 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 in the first rotation direction or in the second rotation direction.

5. The rotary multi-capsule channel sequential opening and inhalation dry powder inhaler according to claim 4, wherein When the rotating shaft rotates in the first rotation direction, the gear drives the pushing end of the lever to move towards the second abutting wall to cover the second filter hole; When the rotating shaft rotates in the second rotation direction, the gear drives the pushing end of the lever to move towards the first abutting wall to cover the first filter hole.

6. The rotary multi-capsule channel sequential opening and inhaling dry powder inhaler according to claim 5, wherein, The end of the rotating shaft away from the connecting rod is in concave-convex fit with the gear.

7. The dry powder inhalation device for sequentially opening and inhaling through a rotating multi-capsule channel according to any one of claims 1-6, characterized in that, The suction nozzle includes a main branch channel and a plurality of sub-branch channels, and the sub-branch channels are all communicated with the main branch channel. The number of the sub-branch channels is the same as the number of the capsule compartments.

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