Dry powder inhalation apparatus

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a dry powder inhalation instrument which is mainly used for administration in the form of a dry powder inhalant and mainly comprises a shell, a cavity, a suction tube and a suction tube, the capsule cabins are formed in the cavity; the driving part is provided with a first axis and is rotatably arranged in the cavity around the first axis, and at least one part of the driving part protrudes in the direction perpendicular to the first axis to form a protruding part; the puncturing structures are located in the cavity, each puncturing structure is connected with one capsule bin, and when the rotating part rotates, the protruding part applies force to the adjacent puncturing structures so as to drive one puncturing structure to move towards the corresponding capsule bin, so that the puncturing structures partially stretch into the capsule bins; the problems that an existing instrument is tedious in operation and medicine bags are missed are mainly solved.

Description

Technical Field

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

[0002] The characteristic of dry powder inhaler devices is that they administer drugs in the form of dry powder inhalers. The drugs are absorbed through the abundant capillaries under the lungs and respiratory mucosa, and take effect very quickly. In clinical practice, dry powder inhaler devices can be divided into capsule type, vesicle type, and reservoir type according to the storage method of the drugs. In capsule type dry powder inhaler devices, a capsule loaded with drugs is usually placed in the dry powder inhaler, and the capsule is punctured by pressing to release the drugs from the capsule for inhalation by the user.

[0003] For example, in the prior art, application number CN202310108306.8 is a powder inhaler device, and application number CN202310270723.2 is a dry powder inhaler. Both provide a dry powder inhaler device for placing a single capsule. However, the problem is that only one dry powder capsule can be opened. When a patient needs to inhale medicines in multiple capsules, they need to be refilled repeatedly, which is cumbersome to use.

[0004] To solve the above problems, the prior art application number is: CN201910685832.4 A medical extrusion dry powder inhalation device provides a device that can be filled with multiple dry powder capsules at one time. It rotates the turntable capsule compartment loaded with multiple dry powder capsules to allow the medicine in the capsule compartment to enter the medicine compartment, and squeezes and breaks it by pressing. Whenever the patient needs to inhale the medicine in multiple capsules, the above operation is repeated.

[0005] The prior art application number CN201611270699.9 also discloses a drug strip and a powder inhaler including the same, which also provides a device for loading multiple dry powder capsules at once. The device comprises a housing, a nozzle, an operating button, a rotating shaft, and the drug strip. The operating button is provided with at least one puncturing member for puncturing capsules on the drug strip. Rotation of the rotating shaft propels the drug strip forward, delivering the capsules on the strip into a medicine chamber formed in the housing.

[0006] However, the above-mentioned prior arts all have the following problems: 1. The capsule is moved to the breaking / piercing device by rotating, and then the capsule is broken by pressing or pushing to release the medicine. In this operation mode, the capsule loaded with medicine needs to be displaced first and then broken, resulting in a cumbersome operation; 2. The capsule-loaded component can only rotate in one direction under the action of the ratchet. When the user rotates it too much, some capsules may be missed.

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

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

[0009] A dry powder inhalation device, comprising:

[0010] a housing, wherein a chamber is formed inside the housing;

[0011] A plurality of capsule compartments are formed in the chamber;

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

[0013] Several puncture structures are located in the chamber, and each puncture structure is connected to a capsule compartment. When the rotating part rotates, the protrusion applies force to the adjacent puncture structure to drive one of the puncture structures to move toward the corresponding capsule compartment, so that the puncture structure partially extends into the capsule compartment.

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

[0015] The dry powder inhalation device also includes:

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

[0017] A connecting shaft is connected to the rotating member and rotates synchronously with the rotating member, wherein the connecting shaft extends into the chamber, and the axis of the connecting shaft coincides with the first axis, the driving portion is connected to the connecting shaft and rotates synchronously with the connecting shaft, and when the rotating member rotates, the protrusion of the driving portion applies force to each of the puncture structures in turn.

[0018] Furthermore, the distances between adjacent puncture structures are the same.

[0019] In some embodiments of the present application, there are a plurality of protrusions, which are arranged in a circular array around the first axis, wherein each protrusion is located between adjacent puncture structures. When the driving part rotates, each puncture structure is subjected to force at the same time to move toward the corresponding capsule compartment.

[0020] In some embodiments of the present application, the protrusion has a first moving path and a second moving path that are opposite to each other; several of the puncture structures include a first puncture structure and a second puncture structure, wherein the first puncture structure is located on the first moving path in the chamber, and the second puncture structure is located on the second moving path in the chamber, and when the protrusion rotates along the first moving path, force is applied to the first puncture structure so that the first puncture structure portion extends into the corresponding capsule compartment, and when the protrusion rotates along the second moving path, force is applied to the second puncture structure so that the second puncture structure portion extends into the corresponding capsule compartment.

[0021] Furthermore, the first puncture structure and the second puncture structure are arranged in a mirror image with each other, wherein the driving part is arranged between the first puncture structure and the second puncture structure.

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

[0023] A connecting rod, one end of which is connected to the rotating shaft, and the other end of which extends from 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 synchronously, so that the protrusion moves along the first moving path or the second moving path, thereby applying force to the first puncture structure or the second puncture structure.

[0024] Furthermore, it also includes: a paddle, which is configured at one end of the connecting rod away from the rotating shaft and is slidably connected to the shell, wherein when the paddle slides relative to the shell, the connecting rod drives the rotation to rotate in the chamber.

[0025] In some embodiments of the present application, several of the puncture structures include:

[0026] an abutting plate, the abutting plate having an abutting surface and a connecting surface;

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

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

[0029] When the driving portion rotates, the protrusion applies force to the abutment surface, causing the puncture needle to move toward the capsule compartment and causing the elastic member to deform so that the puncture needle portion extends into the capsule compartment. After the abutment surface stops being subjected to force, the elastic member unfolds, and the abutment plate moves in a direction away from the capsule compartment under the elastic potential energy of the elastic member.

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

[0031] Beneficial effects of the present invention:

[0032] 1. By providing a plurality of capsule compartments, a plurality of puncturing structures, and a driving unit, when in use, dry powder capsules are loaded into each capsule compartment, and then the driving unit is rotated so that the protrusion of the driving unit presses against the corresponding puncturing structure, causing the puncturing structure to extend into the corresponding capsule compartment, thereby puncturing the capsule for the patient to inhale the medicine in the capsule. After the medicine in one capsule is completely inhaled, the driving unit is further rotated so that the protrusion presses against the next puncturing structure, and this is repeated until the medicine in all capsules is completely inhaled. Under this arrangement, the position of the dry powder capsule in the chamber is determined, that is, the dry powder capsule can be broken open only by rotating the driving unit, and the user does not need to change the position of the capsule and then break the capsule, which has the beneficial effect of saving operation steps.

[0033] 2. Through several capsule compartments, several puncture structures and a driving part, the dry powder capsules can be broken open by rotating during use. In this way, the user is allowed to rotate the driving part in different directions to break the dry powder capsules. In addition, even if the user rotates the driving part excessively, the dry powder capsules passed by can still be broken open, thereby avoiding the problem of missing some capsules. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0035] Figure 2 Schematic diagram of the internal structure of the chamber of the present invention;

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

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

[0038] Figure 5 This is a schematic diagram of the driving portion of the present invention abutting against the puncture structure;

[0039] Figure 6This is a schematic diagram of the structure of the puncture structure after restoration of the present invention;

[0040] Figure 7 This is a schematic diagram of the driving portion of the present invention abutting against the remaining puncture structures;

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

[0042] Figure 9 This is a schematic diagram of the position structure of the paddle and the rotating shaft of the present invention;

[0043] Figure 10 This is a schematic structural diagram of the first puncture structure of the present invention when it is subjected to force;

[0044] Figure 11 This is a schematic diagram of the connecting rod position structure of the present invention;

[0045] Figure 12 This is a schematic diagram of the cover plate and its related structures of the present invention;

[0046] Figure 13 This is a schematic diagram of the puncture structure of the present invention;

[0047] Figure 14 This is a schematic cross-sectional view of the puncture structure of the present invention;

[0048] Figure 15 For the present invention Figure 14 A partially enlarged schematic diagram of the puncture structure;

[0049] In the figure, 1. outer shell; 11. chamber; 12. capsule cabin; 13. conversion disk; 131. filter hole; 14. guide plate; 15. guide hole; 16. nozzle assembly; 2. driving part; 21. protrusion; 3. puncture structure; 31. abutment plate; 32. puncture needle; 33. elastic member; 4. rotating member; 41. connecting shaft; 5. first puncture structure; 6. second puncture structure; 7. rotating shaft; 71. connecting rod; 72. paddle; 8. cover plate; 81. diversion cover plate; 82. gear; 83. paddle. DETAILED DESCRIPTION

[0050] The following is a clear and complete description of the technical solutions in the embodiments of the present invention 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 content 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

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

[0052] A housing 1 is provided with a chamber 11 formed therein;

[0053] A plurality of capsule compartments 12 are formed in the chamber 11;

[0054] The driving part 2 has a first axis and is rotatably arranged in the chamber 11 around the first axis, wherein at least a portion of the driving part 2 protrudes in a direction perpendicular to the first axis to form a protrusion 21; a plurality of puncture structures 3 are located in the chamber 11, and each puncture structure 3 is connected to a capsule compartment 12, wherein when the driving part 2 rotates, the protrusion 21 applies force to the adjacent puncture structures 3 to drive a puncture structure 3 to move toward the corresponding capsule compartment 12, so that part of the puncture structure 3 extends into the capsule compartment.

[0055] During use, the dry powder capsules are loaded into each capsule compartment, and the driving part 2 is rotated so that the driving part 2 rotates around the first axis. For example, the driving part 2 rotates clockwise. At this time, the driving part 2 presses against an adjacent puncture structure 3 in the clockwise direction, so that the puncture structure 3 moves toward the corresponding capsule compartment 12, thereby puncturing the dry powder capsules in the capsule compartment for the user to inhale. When the user has finished inhaling the medicine in one capsule, the driving part 2 is continued to be rotated to puncture the dry powder capsules in the next capsule compartment for the user to inhale; this process is repeated until the user has finished inhaling the medicine in all capsules.

[0056] refer to Figure 1 —6. Specifically, the depth extension direction of the capsule compartment 12 is parallel to the first axis. After the dry powder capsule is placed in the capsule compartment, the dry powder capsule is in a vertical state. As a further limitation, the number of capsule compartments 12 is the same as the number of puncture structures 3, and each capsule compartment 12 has a corresponding puncture structure 3.

[0057] More specifically, the device also includes: a conversion disk 13, which is rotatably connected to the shell 1. In the height direction of the shell 1, the conversion disk 13 is located above the shell 1 and covers the chamber 11, wherein the rotation direction of the conversion disk 13 is perpendicular to the first axis. When in use, force is applied to the conversion disk 13, so that the conversion disk 13 is opened. At this time, the capsule compartment 12 located below the conversion disk 13 is exposed, so that dry powder capsules are placed in the capsule compartment. Furthermore, the conversion disk 13 includes: a connecting portion and a filter plate, the connecting portion is hinged or pivotally connected to the shell 1, and a accommodating cavity is provided through the connecting portion, and the filter plate is configured in the accommodating cavity, wherein the filter plate has a plurality of filter holes 131. After the conversion disk 13 covers the chamber 11, each filter hole 131 corresponds to a capsule compartment 12. Therefore, when the patient inhales the medicine, the medicine is inhaled into the patient's body after passing through the filter hole 131; preferably, the number of filter holes 131 is the same as the number of capsule compartments 12.

[0058] The guide plate 14 can be rotatably arranged in the accommodating cavity. In the height direction of the accommodating cavity, the guide plate 14 is located above the filter plate. A guide hole 15 is provided through the guide plate 14, wherein the guide plate 14 is constructed to rotate synchronously with the driving unit 2. After the protrusion 21 of the driving unit 2 drives a puncture structure 3 to puncture the dry powder capsule in the corresponding capsule cabin 12, the guide hole 15 rotates with the driving unit 2 to the top of the capsule cabin 12 and is connected to the capsule cabin 12 through the filter hole 131. At this time, the guide hole 15 and the filter hole 131 are concentric, so that the medicine in the capsule can be sucked out.

[0059] The protection plate is connected to the connection part and is located above the connection part in the height direction of the accommodating cavity. The protection plate has a plurality of mounting grooves, wherein the plurality of mounting grooves are distributed in a circumferential array on the protection plate.

[0060] The nozzle assembly 16 has a main branch and several auxiliary branches, each of which is connected to the main branch. The end of each auxiliary branch away from the main branch is located in the installation groove. When the protrusion 21 of the driving part 2 punctures the dry powder capsule in a capsule cabin 12, under the action of the guide hole 15, one of the auxiliary branches is connected to the capsule cabin 12 located below the guide hole 15. When in use, the user holds the main branch in his mouth, and the protrusion 21 of the driving part 2 drives a puncture structure 3 to puncture the corresponding capsule cabin 12. After the dry powder capsule inside is punctured, the guide hole 15 moves to the bottom of a secondary branch port and is connected to the corresponding capsule cabin 12 through the guide hole 15 and the filter hole 131. At this time, the user inhales, and the medicine in the dry powder capsule is sucked into the body through the secondary cavity under the action of suction, thereby completing the inhalation of the medicine. After the medicine in the capsule cabin 12 is inhaled, the driving part 2 is rotated again. At this time, the guide hole 15 is moved to the bottom of another secondary branch port, so that the user can continue to inhale the medicine.

[0061] refer to Figure 1 —2 and Figure 4 —6. In the present embodiment, a plurality of puncture structures 3 are circumferentially distributed in the chamber 11 around the first axis. Under this arrangement, when the driving portion 2 rotates, pressure can be applied to each puncture structure 3 in turn through the protrusion 21. For example, when the driving portion 2 rotates clockwise, the protrusion 21 first applies pressure to the first puncture mechanism in the clockwise direction to rupture the capsule in the capsule compartment 12 corresponding to the puncture structure 3. Then, the driving portion 2 is continued to rotate in the clockwise direction, and the capsules in each capsule compartment can be ruptured in turn, thereby avoiding the problem of missing capsules.

[0062] In this embodiment, it also includes: a rotating member 4 and a connecting shaft 41, the rotating member 4 is rotatably connected to the shell 1, the connecting shaft 41 is connected to the rotating member 4, and rotates synchronously with the rotating member 4, wherein the connecting shaft 41 extends into the chamber 11, and the axis of the connecting shaft 41 coincides with the first axis, the driving part 2 is connected to the connecting shaft 41, and rotates synchronously with the connecting shaft 41, when the rotating member 4 rotates, the protrusion 21 of the driving part 2 applies force to each puncture structure 3 in turn; as a specific example, in the height direction of the shell 1, the rotating member 4 is located below the shell 1, when in use, the user twists the rotating member 4, at this time, the rotating member 4 drives the driving part 2 in the cavity through the connecting shaft 41. The rotation occurs in the chamber 11, thereby applying pressure to the puncture structure 3, causing the puncture structure 3 to partially extend into the corresponding capsule compartment 12 to complete the puncture of the capsule; in addition, the end of the connecting shaft 41 away from the rotating part 4 passes through the filter plate and is detachably connected to the guide plate 14, so that when the rotating part 4 rotates, it can also drive the guide plate 14 to rotate synchronously, so that the guide hole 15 is connected to the corresponding capsule compartment 12; wherein, the connecting shaft 41 and the guide plate 14 can adopt a concave-convex fit, so that after the connecting part is opened, the guide plate 14 can be disconnected from the connecting shaft 41, so that the chamber 11 of the shell 1 is exposed, and then it is convenient for the user to replace the dry powder capsule.

[0063] Specifically, a keyway is provided on the outer wall of the connecting shaft 41, and correspondingly, a connecting hole is provided on the driving part 2. When the two are connected, a flat key is installed in the keyway so that when the connecting shaft 41 rotates, the driving part 2 rotates synchronously with the connecting shaft 41; or, the cross-section of the connecting shaft 41 is non-circular, and the cross-section of the connecting hole is the same as the cross-section of the connecting shaft 41. After the connecting shaft 41 passes through the connecting hole, it can drive the driving part 2 to move synchronously with it.

[0064] refer to Figure 2 and Figure 5 —7. Specifically, in this embodiment, the driving portion 2 is a cam. When the cam rotates, the protrusion 21 thereof forms an abutment relationship with the puncture structure 3, thereby pushing the puncture structure 3 to move, thereby breaking the dry powder capsule in the capsule compartment 12.

[0065] Specifically, the distances between adjacent puncture structures 3 are the same. Under normal circumstances, the protrusion 21 is located between two puncture structures 3. Preferably, each puncture structure 3 is in abutment with the outer wall of the driving part 2; thereby, the puncture structure 3 is prevented from being disconnected from the capsule cabin 12 when it does not move toward the capsule cabin 12.

[0066] In addition, in this embodiment, there are 3 to 5 capsule compartments 12, preferably 3. Correspondingly, the number of puncture structures 3 is the same as the number of capsule compartments 12, and each puncture structure 3 is also distributed in a circular array around the first axis. Under this setting, the rotating member 4 rotates in the same direction of rotation, and each rotation can drive a puncture structure 3 to break the dry powder capsule in its corresponding capsule compartment 12, so that the user can record the amount of medicine inhaled.

[0067] As those skilled in the art can understand, the present embodiment can also be configured to rupture all capsules at the same time. For example, a plurality of protrusions 21 are provided and are arranged in a circular array around the first axis, wherein each protrusion 21 is located between adjacent puncture structures 3. When the driving portion 2 rotates, each puncture structure 3 is simultaneously subjected to force to move toward the corresponding capsule compartment 12, thereby achieving the rupture of the dry powder capsules in all capsule compartments 12. Accordingly, under this setting, the number of guide holes 15 on the guide plate 14 is the same as the number of capsule compartments 12. Thus, after all the dry powder capsules are ruptured, the user can inhale the medicine in multiple capsules at one time, thereby improving the efficiency of medicine inhalation.

[0068] refer to Figure 8 —12. In the present embodiment, the protrusion 21 has a first moving path and a second moving path that are opposite to each other; under this setting, the plurality of puncture structures 3 include a first puncture structure 5 and a second puncture structure 6, wherein the first puncture structure 5 is located on the first moving path in the chamber 11, and the second puncture structure 6 is located on the second moving path in the chamber 11. When the protrusion 21 rotates along the first moving path, a force is applied to the first puncture structure 5 so that a portion of the first puncture structure 5 extends into the corresponding capsule compartment. When the protrusion 21 rotates along the second moving path, a force is applied to the second puncture structure 6 so that a portion of the second puncture structure 6 extends into the corresponding capsule compartment. More specifically, the distances between the first moving path and the second moving path are the same. When in use, by moving the protrusion 21 along the first moving path, the capsule compartment is opened. Rotating along one moving path can make the protrusion 21 move away from the second puncture structure 6, thereby individually breaking the dry powder capsule in the capsule compartment corresponding to the first puncture structure 5. Conversely, rotating the protrusion 21 along the second moving path can make the protrusion 21 move away from the first puncture structure 5, thereby individually breaking the dry powder capsule in the capsule compartment corresponding to the second puncture structure 6. Under this setting, the user can inhale the medicine in each capsule in turn, thereby ensuring that the user's attraction will not be dispersed when inhaling the medicine, thereby increasing the inhalation rate of a single capsule. In addition, under this setting, the user does not need to break the capsule after changing the position of the capsule, which has the beneficial effect of saving operating steps. More specifically, the first moving path and the second moving path both present arc-shaped trajectories.

[0069] Specifically, the first puncture structure 5 and the second puncture structure 6 are arranged in a mirror image with each other, wherein the driving part 2 is located between the first puncture structure 5 and the second puncture structure 6; preferably, the first puncture structure 5 and the second puncture structure 6 are both in abutment with the protrusion 21, and when the driving part 2 rotates, the protrusion 21 can apply force to the first puncture structure 5 or the second puncture structure 6, thereby improving the efficiency of breaking the dry powder capsules; as those skilled in the art can understand, under this setting, the number of capsule compartments 12 is two, and the two capsule compartments 12 are also arranged in a mirror image, and the first puncture structure 5 and the second puncture structure 6 are respectively connected to one of the two capsule compartments 12.

[0070] Alternatively, the driving portion 2 is away from the first puncture structure 5 and the second puncture structure 6 in the chamber 11, wherein the protrusion 21 extends between the first puncture structure 5 and the second puncture structure 6. When the driving portion 2 rotates, the protrusion 21 applies force to the first puncture structure 5 or the second puncture structure 6.

[0071] refer to Figure 9 —11. In this arrangement, in order to realize the rotation of the driving part 2, the following method is adopted: the rotating shaft 7 is rotatably arranged in the chamber 11 and connected to the driving part 2, wherein the rotating shaft 7 and the driving part 2 rotate synchronously; one end of the connecting rod 71 is connected to the rotating shaft 7, and the other end of the connecting rod 71 extends from the chamber 11, wherein, when a force is applied to the end of the connecting rod 71 away from the rotating shaft 7, the connecting rod 71 drives the rotating shaft 7 to rotate synchronously, so that the protrusion 21 moves along the first moving path or the second moving path, thereby Apply force to the first puncture structure 5 or the second puncture structure 6; when in use, the user applies force to the end of the connecting rod 71 extending from the chamber 11, so that the rotating shaft 7 rotates in the chamber 11, and then drives the driving part 2 to rotate, so that the protrusion 21 applies force to the first puncture structure 5 or the second puncture structure 6; more specifically, a first sliding groove is opened from the outer wall of the shell 1 to the direction of the chamber 11, wherein the connecting rod 71 extends from the first sliding groove, so that the connecting rod 71 can be displaced when subjected to force.

[0072] Preferably, it also includes: a paddle 72, which is arranged at the end of the connecting rod 71 away from the rotating shaft 7 and is slidably connected to the shell 1, wherein when the paddle 72 slides relative to the shell 1, it is driven to rotate in the chamber 11 by the connecting rod 71; more specifically, a second sliding groove is further opened from the outer wall of the shell 1 to the chamber 11, and the second sliding groove is located above the first sliding groove in the height direction of the shell 1, and the paddle 72 is partially installed in the second sliding groove to form a connection relationship with the shell 1; under this setting, it is easier for the user to apply force to the connecting rod 71 to cause the rotating shaft 7 to rotate, thereby improving the efficiency of breaking the capsule.

[0073] In addition, reference Figure 8 —12, in this embodiment, how to make the patient inhale the medicine in the capsule cabin 12 is set as follows;

[0074] The cover plate 8 is rotatably connected to the shell 1. In the height direction of the shell 1, the cover plate 8 is located above the shell 1 and covers the chamber 11, wherein the cover plate 8 has two first filter parts and a second filter part that are mirror images of each other. When the cover plate 8 covers the chamber 11, the first filter part and the second filter part correspond to the two capsule cabins 12 respectively. When the patient inhales the medicine, the medicine is inhaled into the patient's body after passing through the first filter part or the second filter part.

[0075] The redirection cover plate 8 is located on the side of the cover plate 8 facing away from the chamber 11 and is slidably arranged between the first filter part and the second filter part, wherein the redirection cover plate 8 is constructed to close the second filter part when the protrusion 21 moves along the first moving path to apply force to the first puncture structure 5, so that the first filter part is opened; conversely, when the protrusion 21 moves along the first moving path to apply force to the first puncture structure 5, the first filter part is closed, so that the second filter part is opened.

[0076] The gear 82 and the lever 83 are located on the side of the cover plate 8 facing away from the chamber 11. The gear 82 is connected to the rotating shaft 7 and rotates synchronously with the rotating shaft 7. The lever 83 is rotatably connected to the cover plate 8. The lever 83 is provided with teeth at one end close to the gear 82 and meshes with the gear 82 through the teeth. The end of the lever 83 away from the gear 82 abuts against the guide plate 14. When the rotating shaft 7 drives the protrusion 21 to move along the first moving path, the lever 83 rotates in the opposite direction of the first moving path under the drive of the gear 82, thereby pushing the guide plate 14 to close the second filtering part; conversely, when the rotating shaft 7 drives the protrusion 21 to move along the second moving path, the lever 83 rotates in the opposite direction of the second moving path under the drive of the gear 82, thereby pushing the guide plate 14 to close the first filtering part.

[0077] In this setting, the nozzle assembly 16 has a main branch and two sub-branches, each of which is connected to the main branch, and one end of each sub-branch away from the main branch is separately connected to the first filter part and the second filter part. When in use, the user holds the main branch in his mouth, and after the protrusion 21 of the driving part 2 drives the first puncture structure 5 to puncture the dry powder capsule in the corresponding capsule compartment 12, the first filter part opens. At this time, the user inhales, and the medicine in the dry powder capsule is sucked into the body through the sub-cavity corresponding to the first filter part under the action of suction, and vice versa.

[0078] refer to Figure 1 —2. Figure 4 —7 and Figure 14 -15. In the present embodiment, the plurality of puncturing structures 3 include: an abutment plate 31, a puncturing needle 32, and an elastic member 33; the abutment plate 31 has an abutment surface and a connecting surface, the puncturing needle 32 is arranged on the connecting surface, and partially extends into the wall of the capsule compartment 12, one end of the elastic member 33 is connected to the connecting surface, and the other end of the elastic member 33 is connected to the capsule compartment 12; wherein, when the driving portion 2 rotates, the protrusion 21 applies force to the abutment surface, so that the puncturing needle 32 moves toward the capsule compartment 12, and causes the elastic member 33 to deform, so that the puncturing needle 32 partially extends into the capsule compartment, and after the abutment surface stops being subjected to force, the elastic member 33 unfolds, and the abutment plate 31 moves in the direction away from the capsule compartment 12 under the elastic potential energy of the elastic member 33; more specifically, at least a portion of the abutment surface is an arc-shaped surface, and in the driving portion 2 rotates, the protrusion 21 abuts against the arcuate surface, causing the abutment plate 31 to move toward the capsule compartment 12; in addition, a channel is provided on the outer wall of the capsule compartment 12, wherein the sharp end of the puncture needle 32 extends into the channel. Furthermore, the axis of the channel is perpendicular to the first axis. Under the restriction of the channel, when the abutment plate 31 is pressed by the protrusion 21, the abutment plate 31 moves linearly toward the capsule compartment 12 along the extending direction of the channel axis until the elastic member 33 is compressed to the minimum range. At this time, the puncture needle 32 punctures the dry powder capsule in the capsule compartment 12. When the protrusion 21 loses the abutment relationship with the abutment surface, the abutment plate 31 moves linearly toward the driving member under the action of the elastic member 33, thereby causing the abutment plate to drive the puncture needle 32 to reset; thus, the replacement of the medicine in the capsule compartment 12 will not be affected.

[0079] Preferably, the abutment plate 31 is always in abutment with the outer wall of the driving part 2 under the action of the elastic member 33, so that the channel and the driving part 2 can both limit the abutment plate 31, thereby preventing the puncture needle 32 from separating from the drug delivery cabin.

[0080] More specifically, a plurality of puncture needles 32 are provided, wherein the plurality of puncture needles 32 are arranged in an array in the length direction of the abutment plate 31; 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 32; and the end of the elastic member 33 away from the capsule compartment is connected to adjacent puncture needles 32. Preferably, the number of the puncture needles 32 is 2.

[0081] More specifically, the elastic member 33 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 31. 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 31 is always away from the capsule cabin 12.

[0082] Alternatively, a spring is arranged around the outer wall of the puncture needle 32. Under this arrangement, the number of springs is the same as the number of puncture needles 32, so that a spring is wrapped around the outer wall of each puncture needle 32. Similarly, one end of the spring abuts the outer wall of the capsule compartment 12, and the other end of the spring abuts the connecting surface.

[0083] The method of using the present invention:

[0084] 1. Load the dry powder capsules into each capsule compartment and apply force to the rotating member / paddle to rotate the rotating shaft / connecting shaft. At this time, the protrusion of the driving part presses against an adjacent abutment plate;

[0085] 2. After the abutment plate is subjected to force, it moves linearly toward the capsule compartment under the restriction of the hole, thereby breaking the dry powder capsule in the capsule compartment and releasing the medicine. Then, under the action of the spring, the abutment plate drives the puncture needle to reset;

[0086] 3. The user inhales the medicine in the dry powder capsule through the nozzle assembly. When the user has finished inhaling the medicine in one capsule, the driving part continues to rotate to puncture the dry powder capsule in the next capsule compartment for the user to inhale; this process is repeated until the user has finished inhaling the medicine in all capsules.

[0087] The above embodiments are only for understanding 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, comprising, characterized in that: A housing having a chamber formed therein; A plurality of capsule compartments are formed in the chamber; A driving part having a first axis and rotatably disposed in the chamber about the first axis, wherein at least a portion of the driving part protrudes in a direction perpendicular to the first axis to form a protruding part; A plurality of puncture structures are located in the chamber, each of the puncture structures is connected to a capsule compartment, wherein when the rotating portion rotates, the protrusion applies force to the adjacent puncture structures to drive one of the puncture structures to move toward the corresponding capsule compartment, so that the puncture structure partially extends into the capsule compartment.

2. The dry powder inhalation device according to claim 1, characterized in that: A plurality of the puncturing structures are distributed in the chamber circumferentially around the first axis; The dry powder inhalation device also includes: a rotating member, the rotating member being rotatably connected to the housing, A connecting shaft, wherein the connecting shaft is connected to the rotating member and rotates synchronously with the rotating member, wherein the connecting shaft extends into the chamber, and the axis of the connecting shaft coincides with the first axis, and the driving portion is connected to the connecting shaft and rotates synchronously with the connecting shaft, and when the rotating member rotates, the protrusion of the driving portion applies force to each of the puncture structures in turn.

3. The dry powder inhalation device according to claim 2, characterized in that: The distances between adjacent puncture structures are the same.

4. The dry powder inhalation device according to claim 1, characterized in that: There are a plurality of protrusions, which are arranged in a circular array around the first axis, wherein each protrusion is located between adjacent puncture structures. When the driving part rotates, each puncture structure is subjected to force at the same time to move toward the corresponding capsule compartment.

5. The dry powder inhalation device according to claim 1, characterized in that: The protrusion has a first moving path and a second moving path which are opposite to each other; Several of the puncture structures include a first puncture structure and a second puncture structure, wherein the first puncture structure is located on the first moving path in the chamber, and the second puncture structure is located on the second moving path in the chamber, and when the protrusion rotates along the first moving path, force is applied to the first puncture structure so that the first puncture structure part extends into the corresponding capsule compartment, and when the protrusion rotates along the second moving path, force is applied to the second puncture structure so that the second puncture structure part extends into the corresponding capsule compartment.

6. The dry powder inhalation device according to claim 5, characterized in that: The first puncture structure and the second puncture structure are arranged in a mirror image with each other, wherein the driving part is configured between the first puncture structure and the second puncture structure.

7. The dry powder inhalation device according to claim 5, characterized in that: Also includes: A rotating shaft is rotatably disposed in the chamber and connected to the driving unit, wherein the rotating shaft rotates synchronously with the driving unit; 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 synchronously, so that the protrusion moves along the first moving path or the second moving path, thereby applying force to the first puncture structure or the second puncture structure.

8. The dry powder inhalation device according to claim 7, characterized in that: Also includes: A paddle is arranged at one end of the connecting rod away from the rotating shaft and is slidably connected to the shell, wherein when the paddle slides relative to the shell, the connecting rod drives the rotating shaft to rotate in the chamber.

9. The dry powder inhalation device according to claim 1, characterized in that: Several of the puncture structures include: An abutment plate, the abutment plate having an abutment surface and a connection surface; A puncture needle is disposed on the connection surface and partially extends into the wall of the capsule compartment; an elastic member, one end of which is connected to the connecting surface, and the other end of which is connected to the capsule compartment; When the driving portion rotates, the protrusion applies force to the abutment surface, so that the puncture needle moves toward the capsule compartment and causes the elastic member to deform so that the puncture needle partially extends into the capsule compartment. After the abutment surface stops being subjected to force, the elastic member unfolds and the abutment plate moves in a direction away from the capsule compartment under the elastic potential energy of the elastic member.

10. The dry powder inhalation device according to claim 9, characterized in that: The abutment plate is always in abutment with the outer wall of the driving part under the action of the elastic member.

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