Rotary dry powder inhalation apparatus with multiple capsule channels opened in sequence for inhalation

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a rotary type dry powder inhalation instrument with multiple capsule channels sequentially opened for inhalation, which is mainly used for administration in the form of a dry powder inhalant. A cavity is formed in the shell; the capsule cabins are formed in the cavity and can be communicated with the suction nozzles; the flow guide part is movably arranged between the suction nozzle and the plurality of capsule cabins, so that the suction nozzle is communicated with one capsule cabin; the driving part is connected with the shell and the flow guide assembly, and the driving part can rotate relative to the shell to drive the flow guide assembly to move between the suction nozzle and the capsule cabins, so that the different capsule cabins are communicated with the suction nozzle. And the suction nozzle is communicated with each capsule cabin, so that the suction force of a user is dispersed into each capsule cabin, medicines are difficult to suck by the user, and the suction efficiency is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a dry powder inhalation device with rotating multi-capsule channels opened sequentially for inhalation. Background Art

[0002] The characteristic of dry powder inhalation device is that the drug is administered in the form of dry powder inhaler. The drug is absorbed through the abundant capillaries under the lungs and respiratory mucosa, and takes effect very quickly. In clinical practice, dry powder inhalation devices can be divided into capsule type, vesicle type, and reservoir type according to the storage method of the drug. In the capsule type dry powder inhalation device, a capsule loaded with the drug is usually placed in the dry powder inhalation device, and the drug is released from the capsule by pressing and puncturing the capsule, so that it is inhaled by the user. The existing capsule type dry powder inhalation device is divided into single capsule type and multi-capsule type. In the single capsule type dry powder inhalation device, a drug capsule or a certain amount of drug powder is placed in the capsule chamber, and the capsule chamber is closed. Only a single prescription drug can be inhaled at a time. Therefore, the drug capsule needs to be replaced repeatedly, which is inconvenient to use.

[0003] To solve the above problems, in the double-capsule powder inhaler with the prior art application number CN202320451518.1, a technical solution capable of loading multiple medicine capsules at the same time is provided, which discloses: it includes a base, the top of the base is connected to an upper cover through an installation assembly, the top of the upper cover is provided with a suction nozzle, a channel plate is provided 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, an opening cavity is formed between the inner wall of the base and the bottom surface of the channel plate, an opening mechanism is slidably provided on the inner wall of the opening cavity, a powder outlet mechanism is provided at the top of the channel plate, and air inlets are symmetrically provided on the inner wall of the channel plate on both sides of the powder outlet mechanism for connecting the powder outlet cavity, the air inlet and the opening cavity, and the opening mechanism includes a capsule seat, a capsule cabin, a slider, a first breaking knife, a second breaking knife and a slide groove and other technical solutions.

[0004] The prior art application number is CN201811186154.9, a double-capsule dry powder inhalation device, which provides a technical solution capable of loading multiple medicine capsules at the same time, and discloses: including: a main body, the main body is provided with two independent capsule cavities; a filter seat, the filter seat cover is provided on the two capsule cavities, and the filter seat is provided with a filter corresponding to each capsule cavity; a suction nozzle, the suction nozzle is provided corresponding to the filter seat, so that the capsule cavity communicates with the suction nozzle through the filter; each cavity is provided with a puncture button for puncture; the main body is provided with an air flow channel communicating with the cavity, so that the capsule cavity communicates with the atmospheric environment through the air flow channel; two puncture buttons are actuated at the same time, so that the two puncture buttons simultaneously puncture into the corresponding capsule cavity. The puncture button includes a pressing part, a puncture needle and a reset spring; the main body is provided with a slideway, so that the pressing part can reciprocate along the slideway; the contact between the slideway and the pressing part is provided with a concave-convex matching structure; the puncture needle is installed at the end of the pressing part close to the capsule cavity; the reset spring is provided on the outside of the puncture needle and accommodated in the main body.

[0005] However, in the above-mentioned prior art, when the user inhales the medicine through the nozzle, the nozzle is connected to each capsule compartment, causing the user's suction force to be dispersed into each capsule compartment, making it difficult for the user to inhale the medicine, thereby resulting in a problem of reduced inhalation efficiency.

[0006] In view of the above problems, the present invention provides a dry powder inhalation device with a rotating multi-capsule channel that is opened sequentially for inhalation. Summary of the invention

[0007] In order to overcome the problems raised in the background technology, the present invention adopts the following technical solution: a dry powder inhalation device with a rotating multi-capsule channel opened in sequence for inhalation, comprising: a nozzle; a shell, a chamber formed inside the shell; a plurality of capsule compartments formed in the chamber and capable of being connected to the nozzle; a guide part movably arranged between the nozzle and the plurality of capsule compartments, for connecting the nozzle with one of the capsule compartments; a driving part connected to the shell and the guide assembly, wherein the driving part can rotate relative to the shell to drive the guide assembly to move between the nozzle and the plurality of capsule compartments, so that different capsule compartments are connected to the nozzle.

[0008] In some embodiments of the present application, the capsule compartment includes: a first capsule compartment and a second capsule compartment that are spaced apart from each other; the guide portion includes: a conversion disk, the conversion disk is rotatably connected to the shell, and in the height direction of the shell, the conversion disk is located above the shell and covers the chamber, wherein the conversion disk has a sliding area; a first filter hole and a second filter hole are formed in the sliding area and penetrate the conversion disk, wherein the first filter hole corresponds to the first capsule compartment to connect the first capsule compartment with the suction nozzle, and the second filter hole corresponds to the second capsule compartment to connect the second capsule compartment with the suction nozzle; a redirection cover plate is slidably arranged in the sliding area, wherein the redirection cover plate is constructed to be able to move linearly in the direction of the first filter hole and the direction of the second filter hole; a transmission assembly is located in the sliding area and connected to the drive unit, wherein the transmission assembly is constructed to drive the redirection cover plate to move in the direction of the first filter hole or the second filter hole when the drive unit rotates relative to the shell, so that the first filter hole or the second filter hole is covered.

[0009] Furthermore, the first capsule compartment and the second capsule compartment are arranged in mirror image with each other.

[0010] Furthermore, the redirection cover plate has a first abutment wall and a second abutment wall opposite to each other; the transmission assembly includes: a gear, rotatably arranged in the sliding area and connected to the driving part, wherein when the driving part rotates relative to the outer shell, the gear rotates synchronously with the driving part; a shift rod, rotatably arranged in the sliding area, the shift rod having an engaging end and a pushing end, wherein the engaging end has a rotating axis, and the outer wall of the engaging end is provided with meshing teeth, the meshing end is meshed with the gear through the meshing teeth, and the pushing end extends between the first abutment wall and the second abutment wall; wherein, when the gear rotates, the meshing end rotates around the rotating axis in a direction opposite to the rotation direction of the gear, so that the pushing end moves toward the first abutment wall or the second abutment wall to push the redirection cover plate to cover the first filter hole or the second filter hole.

[0011] In this embodiment, the driving part includes: a rotating shaft, which is rotatably disposed in 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; a connecting rod, one end of which is connected to the rotating shaft, and the other end of the connecting rod extends out of the chamber, wherein when force is applied to one 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.

[0012] Furthermore, when the rotating shaft rotates in the first rotation direction, the gear drives the pushing end of the lever to move toward the second abutting wall to cover the second filter hole;

[0013] When the rotating shaft rotates in the second rotating direction, the gear drives the pushing end of the shifting rod to move toward the first abutting wall to cover the first filtering hole.

[0014] Furthermore, one end of the rotating shaft away from the connecting rod is concave-convexly matched with the gear.

[0015] In some embodiments of the present application, the shell has a first axis, and a plurality of capsule capsules are circumferentially distributed in the chamber around the first axis; the guide part includes: a connecting disk, which is rotatably connected to the shell, and in the height direction of the shell, the connecting disk is located above the shell and covers the chamber, wherein the connecting disk has a receiving groove, and a plurality of filter holes are arranged through the receiving groove, each of the filter holes corresponds to one of the capsule capsules, so as to connect each of the capsule capsules with the suction nozzle; a guide cover plate, which is arranged in the receiving groove and connected to the driving part, wherein the guide cover plate has a guide hole; wherein, when the driving part rotates relative to the shell, the guide cover plate rotates synchronously with the driving part, so that the guide hole is connected to one of the filter holes, and then the filter hole is connected to the suction nozzle.

[0016] Furthermore, the driving part includes: a transmission shaft, which is rotatably arranged in the chamber and detachably connected to the guide cover; a rotating member, which is connected to the outer shell and the transmission shaft and can rotate axially around the first axis, wherein when the rotating member rotates, the guide cover rotates synchronously with the rotating member through the transmission shaft, so that the guide hole can be connected with each of the filter holes in sequence.

[0017] In an embodiment of the present application, the nozzle includes a main branch cavity and a plurality of secondary branch cavities, and the secondary branch cavities are all connected to the main branch cavity, wherein the number of the secondary branch cavities is the same as the number of the capsule compartments.

[0018] Beneficial effects of the present invention: 1. By providing multiple capsule compartments, flow guides and drive units, when a user needs to inhale drugs in multiple capsules during medication, a capsule compartment is connected to the suction nozzle through the flow guide unit, so that the user's suction force on the drug will not be dispersed, thereby improving the drug inhalation rate; after the drug in one capsule is completely inhaled, the flow guide unit can be connected with the remaining capsule compartments in turn through the drive unit, thereby ensuring that the same inhalation efficiency can be maintained when the drug in each capsule is inhaled, and avoiding the problem of repeatedly replacing the drug capsule; 2. By providing a suction nozzle including a main branch cavity and several auxiliary branch cavities, multiple capsule compartments, a guide part and a driving part, when in use, each capsule compartment can be independently connected to the suction nozzle, while ensuring the efficiency of drug inhalation, multiple drug capsules can be loaded at one time, saving the operating steps when inhaling drugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the guide part of the present invention; Figure 3 It is a schematic diagram of the internal structure of the chamber of the present invention; Figure 4 It is a schematic diagram of the structure of the transmission assembly of the present invention; Figure 5 This is a schematic diagram of the diversion cover structure of the present invention; Figure 6 This is a schematic diagram of the structure after the second filter hole of the present invention is covered; Figure 7 This is a schematic diagram of the structure after the first filter hole of the present invention is covered; Figure 8 It is a schematic diagram of the structure of the first capsule cabin and the second capsule cabin of the present invention; Fig. 9 It is a schematic diagram of the structure of the rotating shaft and the lever of the present invention; Fig.10 It is a schematic diagram of the structure of the first filter hole and the second filter hole of the present invention; Fig.11 It is a schematic diagram of the overall structure of another embodiment of the present invention; Fig.12 This is a schematic diagram of the structure of the guide cover plate of the present invention; Fig.13 This is a schematic diagram of the filter hole structure of the present invention; Fig.14 This is a schematic diagram of the structure of the connection disk of the present invention; Fig.15 It is a schematic diagram of the structure of the transmission shaft and the rotating member of the present invention; Fig.16 This is a schematic diagram of the structure of the puncture needle of the present invention; Fig.17 It is a schematic diagram of the structure of the abutment plate of the present invention; Fig.18 It is a schematic diagram of the suction nozzle structure of the present invention; Fig.19 This is a structural schematic diagram of another embodiment of the suction nozzle of the present invention; In the figure, 1. 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. mounting 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. connecting disk; 31. accommodating groove; 32. filter hole; 33. guide cover plate; 331. guide hole; 34. transmission shaft; 35. rotating part; 4. abutment plate; 41. puncture needle; 42. elastic part; 5. nozzle; 51. main branch cavity; 52. secondary branch cavity; 53. connecting plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below through specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Figure 1 —3 shows the main technical content of the present embodiment. This specific embodiment provides a dry powder inhalation device with a rotating multi-capsule channel that is opened in sequence for inhalation, comprising: a shell 1 with a suction nozzle 5, a chamber 11 formed inside the shell 1; a plurality of capsule compartments 12 formed in the chamber 11; a guide portion movably arranged between the suction nozzle 5 and the plurality of capsule compartments 12, for connecting the suction nozzle 5 with a capsule compartment 12; a driving portion connected to the shell 1 and the guide assembly, wherein the driving portion can rotate relative to the shell 1, driving the guide assembly to at least partially move between the suction nozzle 5 and the plurality of capsule compartments 12, so that different capsule compartments 12 are connected to the suction nozzle 5.

[0022] When in use, the dry powder capsules are transferred to each capsule compartment 12, and the driving part is rotated to make the guide part connect the suction nozzle 5 with a capsule compartment 12. At this time, the user can inhale the medicine powder in the capsule compartment 12 through the suction nozzle 5. After the medicine powder in the capsule compartment 12 is inhaled, the driving part is rotated again to make the guide part connect the other capsule compartments 12 with the suction nozzle 5, so that the user can continue to inhale the medicine powder in the remaining capsule compartments 12 until the medicine in all the capsule compartments 12 is inhaled.

[0023] refer to Figure 1 , Figure 3 and Figure 8 Specifically, it also includes: a partition 13, which is arranged in the chamber 11 and is at the same horizontal height as the top of the capsule cabin 12 in the height direction of the shell 1, wherein the partition 13 has a plurality of slots, and each capsule cabin 12 is exposed from the corresponding slot; under this setting, when the suction nozzle 5 and the guide part are away from the chamber 11, the chamber 11 will not be exposed, thereby preventing foreign matter from entering the chamber 11.

[0024] refer to Figure 2 —6. In the present embodiment, the capsule compartment 12 can be provided with two, which include: a first capsule compartment 121 and a second capsule compartment 122, wherein the first capsule compartment 121 and the second capsule compartment 122 are spaced apart from each other. When in use, by loading dry powder capsules into the first capsule compartment 121 and the second capsule compartment 122, the user can inhale multiple grains of medicine during one medication process, which avoids repeated replacement of medicine capsules and saves medication steps.

[0025] More specifically, the first capsule compartment 121 and the second capsule compartment 122 are arranged in a mirror image with each other.

[0026] Under this setting, the guide part includes: a conversion disk 2, a redirection cover plate 22 and a transmission assembly, the conversion disk 2 is rotatably connected to the shell 1, in the height direction of the shell 1, the conversion disk 2 is located above the shell 1 and covers the chamber 11, wherein the conversion disk 2 has a sliding area 21, and the sliding area 21 has a first filter hole 211 and a second filter hole 212, wherein the first filter hole 211 and the second filter hole 212 penetrate the conversion disk 2, the first filter hole 211 corresponds to the first capsule cabin 121, so as to connect the first capsule cabin 121 with the suction nozzle 5, and the second filter hole 212 corresponds to the second capsule cabin 122, so as to connect the second capsule cabin 122 with the suction nozzle 5; the redirection cover plate 22 is slidably configured in the sliding area 21, wherein the redirection cover plate 22 is constructed to be able to move linearly in the direction of the first filter hole 211 and the second filter hole 212, the transmission assembly is located in the sliding area 21 and is connected to the driving part, wherein the transmission assembly is The structure is such that when the driving part rotates relative to the shell 1, the redirecting cover plate 22 is driven to move toward the first filter hole 211 or the second filter hole 212, so that the first filter hole 211 or the second filter hole 212 is covered; when in use, for example, after the capsule in the first capsule cabin 121 is broken, at this time, the redirecting cover plate 22 covers the second filter hole 212, so that the first capsule cabin 121 is connected with the suction nozzle 5 through the first filter hole 211, so that the user can inhale the medicine in the first capsule cabin 121, and when it is necessary to inhale the medicine in the second capsule cabin 122, by rotating the driving part, at this time, the redirecting cover plate 22 moves toward the first filter hole 211 under the action of the transmission component, so as to cover the first filter hole 211, so that when the user inhales the medicine, only one capsule cabin 12 is connected with the suction nozzle 5, so that the user's suction force on the medicine will not be dispersed, thereby improving the inhalation efficiency when multiple medicines are inhaled.

[0027] refer to Figure 5—8, more specifically, the rotation direction of the conversion disk 2 is perpendicular to the height extension direction of the capsule compartment 12. When in use, force is applied to the conversion disk 2 so that the conversion disk 2 is opened. At this time, the capsule compartment 12 located below the conversion disk 2 is exposed, so that the dry powder capsule is placed in the capsule compartment 12; in addition, the conversion disk 2 has a first surface and a second surface opposite to each other, wherein the sliding area 21 includes: a mounting groove 213 opened from the first surface to the second surface, wherein the mounting groove 213 has a first limiting portion 214 and a second limiting portion 215, and a sliding portion 216, the first limiting portion 214 and the second limiting portion 215 are mirror-imaged to each other, and the sliding portion 216 is located between the first limiting portion 214 and the second limiting portion 215. 215, and is connected with 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, wherein the redirection cover plate 22 at least partially extends into the first limiting portion 214 and the second limiting portion 215. When in use, the redirection cover plate 22 slides inwardly on the sliding portion 216 driven by the transmission component, and at the same time, the first limiting portion 214 and the second limiting portion 215 limit the redirection cover plate 22, so that the redirection cover plate 22 moves linearly in 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.

[0028] More specifically, the redirection cover plate 22 has a first abutment wall 221 and a second abutment wall 222 that are opposite to each other, and the transmission component partially extends between the first abutment wall 221 and the second abutment wall 222. When the driving part rotates relative to the outer shell 1, the transmission component can partially abut against the first abutment wall 221 or the second abutment wall 222, thereby pushing the redirection cover plate 22 to perform linear motion.

[0029] refer to Figure 2—8. Under this configuration, the transmission assembly can be configured as: a gear 23 and a lever 24. The gear 23 is rotatably arranged in the sliding area 21 and is connected to the driving part, wherein 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, and the lever 24 has a meshing end and a pushing end, wherein the meshing end has a rotating shaft 25, and the outer wall of the meshing end is provided with meshing teeth, the meshing end is meshed with the gear 23 through the meshing teeth, and the pushing end extends between the first abutting wall 221 and the second abutting wall 222; wherein, when the gear 23 rotates, the meshing end 25 ... The engaging end rotates around the rotating shaft 25 in a direction opposite to the rotation direction of the gear 23, so that the pushing end moves toward the first abutment wall 221 or the second abutment wall 222, so as to push the redirection cover 22 to cover the first filter hole 211 or the second filter hole 212; as a further explanation, the engaging ends of the gear 23 and the lever 24 are opposite in their rotation directions. For example, when the first capsule compartment 121 is connected to the suction nozzle 5, the gear 23 rotates clockwise, and at this time, the engaging end rotates counterclockwise, so that the pushing end abuts against the second abutment wall 222, and then the redirection cover 22 covers the second filter hole 212.

[0030] 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 disposed in the chamber 11 and is detachably connected to the gear 23, wherein 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, wherein when a force is applied to one end of the connecting rod 26 away from the rotating shaft 25, the connecting rod 26 drives the rotating shaft 25 to rotate in the first rotation direction or in 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 toward 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 toward the first abutting wall 221 to cover the first filter hole 32, so that when the user inhales the drug, one of the first capsule compartment 121 and the second capsule compartment 122 is connected to the suction nozzle 5, thereby increasing the rate of drug inhalation.

[0031] Specifically, one end of the rotating shaft 25 away from the connecting rod 26 is matched with the gear 23 in a concave-convex manner. Specifically, the sliding area 21 has a through hole, and the gear 23 has a semi-cylindrical first linkage shaft, which extends into the through hole. The end of the rotating shaft 25 away from the connecting rod 26 is integrally connected with the 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, so that when the rotating shaft 25 rotates, the gear 23 is driven to rotate synchronously.

[0032] In addition, refer to Figure 1 and Fig.10 The chamber 11 also has a puncturing structure for breaking open the capsules in the capsule compartment 12. Specifically, the puncturing structure includes a first puncturing structure and a second puncturing structure which are arranged in a mirror image to each other. The first puncturing structure and the second puncturing structure are structurally identical, wherein the first puncturing structure is connected to the first capsule compartment 121, and the second puncturing structure is connected to the second capsule compartment 122. The rotating shaft 25 is located between the first puncturing structure and the second puncturing structure. In addition, a cam is provided to be 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 a first rotation direction, the cam abuts against the first puncturing structure, so that the first puncturing structure partially enters into the first capsule compartment 121, thereby breaking open the capsule in the first capsule compartment 121, thereby releasing the medicine in the capsule. When the device is in use, the user rotates the connecting rod 26 in the first rotation direction, at which time the first puncturing structure breaks the capsule in the first capsule compartment 121, and at the same time, the pushing end of the lever 24 abuts against the second abutting wall 222, so that the redirecting cover plate 22 moves toward the second filter hole 212, thereby making the first capsule compartment 121 connected with the suction nozzle 5 through the first filter hole 211, so that the user can inhale the medicine; conversely, when the connecting rod 26 is rotated in the second rotation direction, the capsule in the second capsule compartment 122 is punctured, and the suction nozzle 5 is connected with the second capsule compartment 122. Under this setting, the capsule in one capsule compartment 12 can be punctured while the capsule compartment 12 can be connected with the suction nozzle 5, thereby increasing the rate at which the user inhales the medicine in a single capsule and avoiding repeated replacement of the medicine capsule in the capsule compartment 12.

[0033] refer to Fig.11 —13, in other embodiments, the shell 1 has a first axis, and a plurality of capsule cabins 12 are circumferentially distributed around the first axis in the chamber 11; in this arrangement, the guide portion includes: a connecting plate 3 and a guide cover plate 33, the connecting plate 3 is rotatably connected to the shell 1, in the height direction of the shell 1, the connecting plate 3 is located above the shell 1 and covers the chamber 11, wherein the connecting plate 3 has a receiving groove 31, and a plurality of filter holes 32 are arranged through the receiving groove 31, each filter hole 32 corresponds to a capsule cabin 12, so as to filter each capsule cabin 12. The capsule compartment 12 is connected to the suction nozzle 5; the guide cover 33 is arranged in the accommodating groove 31 and is connected to the driving part, wherein the guide cover 33 has a guide hole 331; wherein, when the driving part rotates relative to the outer shell 1, the guide cover 33 rotates synchronously with the driving part, so that the guide hole 331 is connected to a filter hole 32, and then the filter hole 32 is connected to the suction nozzle 5. Under this setting, multiple medicine capsules can be loaded at the same time, so that the user can inhale the medicine in each capsule compartment 12 in turn through the suction nozzle 5.

[0034] In addition, as can be understood by those skilled in the art, the connection method between the connection disk 3 and the housing 1 is the same as the connection method between the conversion disk 2 and the housing 1 described above, which will not be described in detail here.

[0035] refer to Fig.13 —16. Under this arrangement, the driving unit may include a transmission shaft 34 and a rotating member 35. The transmission shaft 34 is rotatably disposed in the chamber 11 and is detachably connected to the guide cover 33. The rotating member 35 is connected to the outer shell 1 and the transmission shaft 34, and can rotate axially around the first axis. When the rotating member 35 rotates, the guide cover 33 rotates synchronously with the rotating member 35 through the transmission shaft 34, so that the guide hole 331 can be connected to each filter hole 32 in turn, and then after the user has inhaled all the medicine in one capsule cabin 12, the powder in the remaining capsules can be inhaled in turn.

[0036] In addition, as can be understood by those skilled in the art, the connection method between the transmission shaft 34 and the guide cover plate 33 is the same as the connection method between the rotating shaft 25 and the gear 23 mentioned above, which will not be repeated here.

[0037] refer to Fig.14 —16. In this embodiment, a plurality of puncture structures are arranged in the chamber 11, each of which is connected to a capsule compartment 12, wherein the plurality of puncture structures are circumferentially distributed in the chamber 11 around the first axis. In this arrangement, a cam is arranged to be connected to the transmission shaft 34 and rotates synchronously with the transmission shaft 34. Each puncture structure abuts against the outer wall of the cam. When the transmission shaft 34 rotates, for example, when the transmission shaft 34 rotates in a clockwise direction, the cam abuts against the first puncture structure in the clockwise direction. The piercing structure applies force so that the piercing structure part extends into the corresponding capsule compartment 12, thereby piercing the medicine capsule in the capsule compartment 12. At the same time, the guide cover 33 rotates with the transmission shaft 34. After the medicine capsule in the capsule compartment 12 is pierced, its guide hole 331 is moved to the top of the capsule compartment 12, thereby connecting the capsule compartment 12 with the suction nozzle 5. After the medicine in the capsule compartment 12 is completely sucked out, the rotating member 35 continues to rotate in the same direction to pierce the capsules in the remaining capsule compartments 12.

[0038] refer to Fig.14—17. In the present embodiment, a puncture structure is provided. Specifically, the puncture structure comprises: an abutment plate 4, a puncture needle 41 and an elastic member 42; the abutment plate 4 has an abutment surface and a connection surface; the puncture needle 41 is arranged on the connection surface and partially extends into the wall of the capsule compartment 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 compartment 12; wherein, when the cam rotates, a force is applied to the abutment surface, so that the puncture needle 41 moves toward the capsule compartment 12, and the elastic member 42 is deformed, so that the puncture needle 41 partially extends into the capsule compartment, and after the abutment surface stops being subjected to force, the elastic member 42 unfolds, and the abutment plate 4 moves away from the capsule compartment under the elastic potential energy of the elastic member 42. The puncture needle 41 moves in the direction of the capsule cabin 12; more specifically, the outer wall of the capsule cabin 12 is provided with a channel, wherein the sharp end of the puncture needle 41 extends into the channel, and further, the axis of the channel is perpendicular to the first axis. Under the limitation of the channel, when the abutment plate 4 is pressed by the cam, the abutment plate 4 moves linearly along the deepening direction of the channel axis toward the capsule cabin 12 until the elastic member 42 is compressed to the minimum range. At this time, the puncture needle 41 punctures the dry powder capsule in the capsule cabin 12. When the cam loses the abutment relationship with the abutment surface, the abutment plate 4 moves linearly toward the driving member under the action of the elastic member 42, so that the abutment plate drives the puncture needle 41 to reset; thereby, the replacement of the medicine in the capsule cabin 12 will not be affected.

[0039] More specifically, a plurality of puncture needles 41 are provided, wherein the plurality of puncture needles 41 are arranged in an array in the length direction of the abutment plate 4; under this arrangement, when the dry powder capsule is broken open, a plurality of release holes can be formed on the surface of the capsule at one time, thereby facilitating the user to inhale the medicine; accordingly, the number of the holes is the same as the number of the puncture needles 41; and the end of the elastic member 42 away from the capsule compartment is connected to adjacent puncture needles 41, and preferably, the number of the puncture needles 41 is 2.

[0040] More specifically, the elastic member 42 is a spring; a first mounting groove is provided on the outer wall of the capsule cabin 12, and a second mounting groove is provided on the connecting surface of the abutment plate 4; one end of the spring is arranged in the first mounting groove, and the other end of the spring is arranged in the second mounting groove, so that the abutment plate 4 is always away from the capsule cabin 12.

[0041] Alternatively, the spring is arranged around the outer wall of the puncture needle 41. Under this arrangement, the number of springs is the same as the number of puncture needles 41, so that a spring is wrapped around the outer wall of each puncture needle 41. Similarly, one end of the spring abuts against the outer wall of the capsule compartment 12, and the other end of the spring abuts against the connecting surface.

[0042] refer to Figure 1 —2 and Fig.18—19. In the present embodiment, the nozzle 5 includes a main branch cavity 51 and a plurality of sub-branch cavities 52, and each sub-branch cavity 52 is connected to the main branch cavity 51, wherein each sub-branch cavity 52 is connected to a capsule compartment 12, and the number of sub-branch cavities 52 is the same as the number of capsule compartments 12.

[0043] More specifically, the suction nozzle 5 also has a connecting plate 53, which is fixedly connected to the conversion disk 2, so that when the conversion disk 2 is opened, the suction nozzle 5 moves accordingly; further, the connecting plate 53 is provided with the same number of connecting holes as the auxiliary branch channels 52, and each auxiliary branch channel 52 is connected to a connecting hole.

[0044] As can be understood, in another embodiment, the connection mode between the connecting plate 53 and the connecting disk 3 is the same as the connection mode between the connecting plate 53 and the conversion disk 2, which will not be described in detail here.

[0045] The method of using the present invention: 1. Load the dry powder capsules into each capsule compartment, and rotate the cam to break the capsules in one capsule compartment through the puncture structure. At this time, the guide part connects the suction nozzle with one capsule compartment, and the user can inhale the powder in the capsule compartment through the suction nozzle; 2. After the powder in the capsule compartment is inhaled, the driving part is rotated again so that the cam breaks the capsule in the adjacent capsule compartment. At the same time, the guide part also switches the capsule compartment connected to the suction nozzle, so that the user can continue to inhale the powder in the remaining capsule compartments; 3. After all the medicines in the capsule compartments have been inhaled, open the conversion disk to replace the dry powder capsules in each capsule compartment.

[0046] The above embodiments are only used to understand the present invention. It should be noted that, for those skilled in the art, several improvements can be made to the present invention without departing from the principles of the present invention, and these improvements will also fall within the scope of protection of the claims of the present invention.

Claims

1. A dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation, comprising: Suction nozzle; A housing having a chamber formed therein; A plurality of capsule compartments are formed in the chamber and can be communicated with the suction nozzle; a guide portion, movably disposed between the suction nozzle and a plurality of the capsule compartments, and used to connect the suction nozzle with one of the capsule compartments; A driving unit is connected to the shell and the guide assembly, wherein the driving unit can rotate relative to the shell to drive the guide assembly to move between the suction nozzle and a plurality of the capsule compartments, so that different capsule compartments are connected to the suction nozzle.

2. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 1, characterized in that: The capsule cabin comprises: a first capsule cabin and a second capsule cabin which are spaced apart from each other; The guide portion comprises: A conversion disk, the conversion disk is rotatably connected to the shell, the conversion disk is located above the shell in the height direction of the shell and covers the chamber, wherein the conversion disk has a sliding area; A first filter hole and a second filter hole are formed in the sliding area and penetrate the conversion disk, wherein the first filter hole corresponds to the first capsule compartment to connect the first capsule compartment with the suction nozzle, and the second filter hole corresponds to the second capsule compartment to connect the second capsule compartment with the suction nozzle; a redirection cover plate, slidably disposed in the sliding area, wherein the redirection cover plate is configured to be able to move linearly in the direction of the first filter hole and the direction of the second filter hole; A transmission assembly is located in the sliding area and connected to the driving part, wherein the transmission assembly is constructed to drive the redirection cover plate to move toward 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.

3. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 2, characterized in that: The first capsule compartment and the second capsule compartment are arranged in a mirror image with each other.

4. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 2, characterized in that: The redirecting cover plate has a first abutting wall and a second abutting wall opposite to each other; The transmission assembly comprises: a gear, rotatably disposed in the sliding area and connected to the driving part, wherein when the driving part rotates relative to the housing, the gear rotates synchronously with the driving part; a lever, rotatably disposed in the sliding area, the lever having a meshing end and a pushing end, wherein the meshing end has a rotating shaft, and the outer wall of the meshing end is provided with meshing teeth, the meshing end meshes with the gear through the meshing teeth, and the pushing end extends between the first abutting wall and the second abutting wall; When the gear rotates, the meshing end rotates around the rotation axis in a direction opposite to the rotation direction of the gear, so that the pushing end moves toward the first abutment wall or the second abutment wall to push the redirection cover plate to cover the first filter hole or the second filter hole.

5. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 4, characterized in that: The driving unit comprises: a rotating shaft, rotatably disposed in the chamber and detachably connected to the gear, wherein the rotating shaft has a first rotating direction and a second rotating direction that are opposite to each other; A connecting rod, one end of which is connected to the rotating shaft, and the other end of which extends out of the chamber, wherein when 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.

6. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 5, characterized in that: When the rotating shaft rotates in the first rotation direction, the gear drives the pushing end of the lever to move toward the second abutting wall to cover the second filter hole; When the rotating shaft rotates in the second rotating direction, the gear drives the pushing end of the lever to move toward the first abutting wall to cover the first filter hole.

7. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 5, characterized in that: One end of the rotating shaft away from the connecting rod is in concave-convex cooperation with the gear.

8. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 1, characterized in that: The housing has a first axis, and a plurality of capsule compartments are circumferentially distributed in the chamber around the first axis; The guide part comprises: a connection plate, the connection plate is rotatably connected to the shell, the connection plate is located above the shell in the height direction of the shell, and covers the chamber, wherein the connection plate has a receiving groove, a plurality of filter holes are arranged through the receiving groove, and each filter hole corresponds to one capsule cabin, so as to connect each capsule cabin with the suction nozzle; A guide cover plate, disposed in the receiving groove and connected to the driving part, wherein the guide cover plate has a guide hole; Wherein, when the driving part rotates relative to the shell, the guide cover plate rotates synchronously with the driving part, so that the guide hole is connected with one of the filter holes, and then the filter hole is connected with the suction nozzle.

9. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to claim 8, characterized in that: The driving unit comprises: A transmission shaft is rotatably disposed in the chamber and detachably connected to the guide cover plate; A rotating member is connected to the housing and the transmission shaft and can rotate axially around the first axis, wherein when the rotating member rotates, the guide cover plate rotates synchronously with the rotating member through the transmission shaft, so that the guide holes can be connected with each of the filter holes in sequence.

10. The dry powder inhalation device with multiple rotating capsule channels opened sequentially for inhalation according to any one of claims 1 to 9, characterized in that: The nozzle includes a main branch cavity and a plurality of secondary branch cavities, and the secondary branch cavities are all connected to the main branch cavity, wherein the number of the secondary branch cavities is the same as the number of the capsule compartments.

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