WO2022218065A1 - Dry powder inhalation device and method for operating dry powder inhalation device - Google Patents

Abstract

A dry powder inhalation device and a method for operating the dry powder inhalation device. The dry powder inhalation device (1) comprises: a body (2) having an accommodating cavity (201), a first opening (202a), and a second opening (202b), the first opening (202a) and the second opening (202b) being communicated with the accommodating cavity (201); a mouthpiece (3), connected to the body (2), and communicated with the accommodating cavity (201) by means of the second opening (202b); a screen (4) provided in the second opening (202b); a capsule compartment (5), pivotally mounted in the accommodating cavity (201) and provided with a capsule accommodating recess (501), wherein the capsule compartment (5) can rotate relative to the body (2) to a first position at which the capsule accommodating recess (501) is exposed to the first opening (202a), and a second position at which the capsule accommodating recess (501) is opposite to the screen (4); and a capsule breaking mechanism (6) configured to break the capsule shell of a capsule (100) in the capsule accommodating recess (501) under external force.

Description

Dry powder inhalation device and operation method of dry powder inhalation device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the invention patent application with the application number 202110413142.0 and the application name "dry powder inhalation device and operation method of dry powder inhalation device" filed on April 16, 2021, the entire content of which is incorporated by reference in This disclosure is made a part of this disclosure.

technical field

The present disclosure relates to the technical field of medical devices, and in particular, to a dry powder inhalation device and an operation method of the dry powder inhalation device.

Background technique

Studies have found that certain pharmaceuticals in the form of dry powder, inhaled directly into the lungs through the mouth or nose, can achieve good therapeutic effects. Different from the general route of administration, pulmonary administration requires the use of a specific dry powder inhalation device to complete the dispersion, atomization and pulmonary delivery of the drug. Therefore, the role of dry powder inhalation devices in pulmonary drug delivery is extremely important. .

The capsule type dry powder inhalation device is an inhalation device specially designed for dry powder medicine capsules (referred to as capsules in this disclosure). For the capsule type dry powder inhalation device, how to improve the convenience of its administration is a technical problem that needs to be solved urgently.

SUMMARY OF THE INVENTION

According to an aspect of the present disclosure, there is provided a dry powder inhalation device, comprising: a body having a accommodating cavity, a first opening and a second opening, the first opening and the second opening being communicated with the accommodating cavity; a suction nozzle, is connected to the body and communicated with the accommodating cavity through the second opening; the screen is arranged in the second opening; the capsule bin is pivotally mounted in the accommodating cavity and has a capsule accommodating slot, and the capsule bin can be rotated relative to the body to make the capsule accommodating slot a first position exposed to the first opening and a second position where the capsule accommodating groove is opposite to the screen; and a capsule breaking mechanism configured to break the capsule shell of the capsule in the capsule accommodating groove under external force.

In some embodiments, the capsule compartment further has a capsule rotation slot that communicates with the capsule accommodating slot and is capable of accommodating the capsule for centrifugal rotation, and the side wall of the capsule rotation slot has a pair of air inlets arranged symmetrically in the center; when the capsule compartment In the second position, through suction through the suction nozzle, the negative pressure and centrifugal airflow generated in the capsule holding tank can drive the destroyed capsule shell into the capsule rotation tank and perform centrifugal rotation in the capsule rotation tank to remove the dry powder medicine. Toss out the capsule shell.

In some embodiments, when the capsule compartment is in the first position, the slot wall of the capsule rotation slot is substantially flush with the hole wall of the first opening.

In some embodiments, the accommodating cavity has a first latching position and a second latching position, the capsule compartment has an engaging portion, and when the capsule compartment is in the first position, the engaging portion is latched into the first latching position, and when the capsule compartment is in the first position In the second position, the engaging part is locked into the second locking position.

In some embodiments, the capsule compartment can also be rotated relative to the body to a third position between the first position and the second position, the accommodating cavity further has a third latching position, and when the capsule compartment is in the third position, the engaging portion latches into the third card slot.

In some embodiments, the capsule breaking mechanism includes at least one lancet button, each lancet button configured to break the capsule shell with the lancet when pressed.

In some embodiments, the body includes a blocking portion for restricting the lancet button from coming out of the accommodating cavity, the side of the capsule compartment close to the lancet button has at least one guide hole and at least one needle hole leading to the capsule accommodating groove; the lancet The button body includes a button body, a spring and at least one needle, wherein the button body is slidably assembled in the accommodating cavity and stopped at the blocking part, the side of the button body away from the capsule compartment is the pressing side, and the side of the button body close to the capsule compartment There is at least one guide post which is pierced through at least one guide hole in a one-to-one correspondence, a spring is arranged between the button body and the capsule compartment, and at least one puncture needle is fixed on the side of the button body close to the capsule compartment and is pierced in a one-to-one correspondence in at least one pinhole.

In some embodiments, at least one piercing hole includes a piercing hole, at least one piercing needle includes a piercing needle, a side of the button body close to the capsule compartment further has a piercing needle seat, the piercing needle is fixed on the piercing needle seat, and the spring is sleeved on the piercing needle seat .

In some embodiments, the capsule accommodating groove is provided on the rotation centerline of the capsule compartment, and the axis of the needle hole is coincident with the rotation centerline of the capsule compartment.

In some embodiments, the dry powder inhalation device further includes: a toggle portion connected to the capsule compartment, configured to drive the capsule compartment to rotate relative to the body when toggled by an external force.

In some embodiments, the inner wall of the accommodating cavity has a guide structure, and the capsule compartment is slidably assembled on the guide structure.

In some embodiments, the body includes a first shell portion and a second shell portion that are butt-joined to form the accommodating cavity, and the suction nozzle, the first shell portion and the screen are integrally connected.

According to another aspect of the present disclosure, there is also provided a method of operation applied to the dry powder inhalation device of any of the foregoing embodiments, comprising:

When the capsule compartment is in the first position, put the capsule into the capsule accommodating groove;

Rotating the capsule compartment to the second position, and in the process of rotating the second position or from the first position to the second position, the capsule shell of the capsule is destroyed by the capsule breaking mechanism, so that the dry powder medicine in the capsule shell is scattered; and

Inhale dry powder medication through the mouthpiece.

These and other aspects of the present disclosure will be apparent from and elucidated with reference to the embodiments described hereinafter.

Description of drawings

Further details, features and advantages of the present disclosure are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

1 is a schematic diagram of a dry powder inhalation device of some embodiments of the present disclosure in a first position in a capsule compartment;

2 is a schematic diagram of the dry powder inhalation device of some embodiments of the present disclosure in a second position in a capsule compartment;

Fig. 3 is the exploded structure schematic diagram of the dry powder inhalation device of some embodiments of the present disclosure;

4 is a schematic diagram of the assembly of the capsule compartment and the capsule destruction mechanism of the dry powder inhalation device according to some embodiments of the present disclosure;

5 is a schematic diagram of the connection between the body and the suction nozzle of the dry powder inhalation device according to some embodiments of the present disclosure;

6 is a schematic diagram of the dry powder inhalation device of other embodiments of the present disclosure in the first position of the capsule compartment; and

FIG. 7 is a schematic flowchart of an operating method of a dry powder inhalation device according to some embodiments of the present disclosure.

Detailed ways

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

According to the different loading forms of dry powder drugs, dry powder inhalation devices can be roughly divided into capsule dry powder inhalation devices, single-use dry powder inhalation devices, multi-dose multi-unit dry powder inhalation devices and multi-dose reservoir dry powder inhalation devices, etc. Among them, the capsule type dry powder inhalation device is an inhalation device specially designed for dry powder medicine capsules. When the capsule type dry powder inhalation device is in use, first put the capsule into the device; then operate the device to destroy the capsule shell to disperse the dry powder drug. Treatment: After the treatment, the capsule shell is taken out, the medicament retained in the device is cleaned up, and the device can be reserved for the next use. Because the dry powder medicine is enclosed in the capsule shell before the treatment, the capsule is relatively independent from the device, so the efficacy of the dry powder medicine can be better maintained, and the capsule storage is also convenient.

When using the dry powder inhalation devices provided by some related technologies, most of them need to frequently operate the cover for closing the capsule accommodating groove, and the operation steps are cumbersome and the convenience is poor.

Based on this, the embodiments of the present disclosure provide a dry powder inhalation device and an operation method of the dry powder inhalation device, so as to improve the convenience of the drug administration operation of the dry powder inhalation device.

As shown in FIGS. 1 , 2 and 3 , the dry powder inhalation device 1 provided by some embodiments of the present disclosure includes a main structure of a main body 2 , a suction nozzle 3 , a screen 4 , a capsule compartment 5 and a capsule destruction mechanism 6 . The body 2 has a accommodating cavity 201 , a first opening 202 a and a second opening 202 b , wherein the first opening 202 a and the second opening 202 b communicate with the accommodating cavity 201 . The suction nozzle 3 is connected with the body 2 and communicated with the accommodating cavity 201 through the second opening 202b. The screen 4 is provided in the second opening 202b. The capsule compartment 5 is pivotally mounted in the accommodating cavity 201 and has a capsule accommodating groove 501, and the capsule compartment 5 can be rotated relative to the body 2 to a first position where the capsule accommodating groove 501 is exposed to the first opening 202a (as shown in FIG. 1 ). ), and the second position where the capsule accommodating groove 501 is opposite to the screen 4 (as shown in FIG. 2 ). The capsule breaking mechanism 6 is configured to break the capsule shell of the capsule 100 in the capsule accommodating groove 501 under external force.

The dry powder inhalation device 1 in the embodiment of the present disclosure may be a disposable dry powder inhalation device, or may be a dry powder inhalation device that can be re-packed into capsules for recycling.

The structure of the suction nozzle 3 can be flexibly designed according to the specific administration method of the dry powder inhalation device 1 . As shown in FIG. 2 and FIG. 3 , in some embodiments of the present disclosure, the dry powder inhalation device 1 is a dry powder inhalation device of oral administration type, and the suction nozzle 3 is specifically a mouth suction type suction nozzle. In order to facilitate the mouth to hold the mouthpiece, the cross-sectional shape of the peripheral side surface of the mouthpiece 3 is designed to be an ellipse.

In some other embodiments of the present disclosure, the dry powder inhalation device may also be a snorting type dry powder inhalation device, and the mouthpiece is, for example, a snorting mouthpiece. In order to ensure the amount of inhaled medicine, the nose suction nozzle can be designed to fit the face according to ergonomics, and the nose suction nozzle can also be further connected with a head fixing strap for reliable fixation on the face.

When using the dry powder inhalation device 1 of the embodiment of the present disclosure for drug administration, first, as shown in FIG. 1 , when the capsule compartment 5 is in the first position, the capsule is put into the capsule accommodating groove 501 ; then, as shown in FIG. 2 , As shown, rotate the capsule compartment 5 to the second position, and in the process of rotating the second position or from the first position to the second position, the capsule shell of the capsule is destroyed by the capsule breaking mechanism 6, so that the dry powder medicine in the capsule shell is destroyed. Dispense; then, inhale the dry powder medicine through the mouthpiece 3.

If the dry powder inhalation device 1 is a disposable dry powder inhalation device, the dry powder inhalation device can be discarded after completing the above administration operation. If the dry powder inhalation device 1 is a recyclable dry powder inhalation device, the following operations can be performed after the above-mentioned administration operation: rotate the capsule compartment 5 to the first position; then, take out the broken capsule shell; 1. After cleaning, sterilization and disinfection, keep it for the next use.

It can be seen from the above-mentioned drug administration operation process of the dry powder inhalation device 1 that the actions of the operator putting in the capsule, destroying the capsule shell and inhaling the dry powder medicine are carried out at some rotational positions of the capsule compartment 5 relative to the body 2, which is not required by the related art. Frequent opening and closing of the cover for closing the capsule accommodating groove greatly improves the convenience of operation. In addition, the dry powder inhalation device 1 designed with this structure does not have the cover structure of the related art, so the structure is more simplified, the reliability is higher, and the manufacturing cost is relatively low.

In the embodiment of the present disclosure, the material type of the body 2 is not limited, for example, it may be a plastic body, a metal body, or an alloy body, and the like. In some embodiments, as shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 5 , the body 2 includes a first shell part 203 a and a second shell part 203 b that are butt-jointed to form a cylindrical accommodating cavity 201 , the suction nozzle 3 , The first shell 203a and the screen 4 are integrally connected. The first shell portion 203a and the second shell portion 203b adopt a split assembly structure, which is convenient for processing and manufacturing on the one hand, and convenient for disassembly and cleaning on the other hand. Among them, the suction nozzle 3, the first shell part 203a and the screen 4 are designed in an integrated structure. For example, they are integrally formed by an injection molding process, which can make the structure of the dry powder inhalation device 1 more reliable, and is also conducive to reducing the number of edges on the screen 4. Card powder, reduce the waste of dry powder medicine. In other embodiments of the present disclosure, the suction nozzle 3, the first shell portion 203a and the screen mesh 4 may not be designed as an integral structure, but are fabricated separately and then assembled together.

As shown in FIG. 3 and FIG. 4 , in some embodiments of the present disclosure, the capsule compartment 5 further has a capsule rotating groove 502 that communicates with the capsule accommodating groove 501 and is capable of accommodating the capsule 100 in it to perform centrifugal rotating motion. The capsule rotates The side wall of the groove 502 has a pair of air inlets 5021 arranged symmetrically in the center. When the capsule compartment 5 is in the second position, and inhale through the suction nozzle 3, negative pressure and centrifugal airflow will be generated in the capsule holding groove 501, and the negative pressure and centrifugal airflow will drive the damaged capsule shell into the capsule rotating groove 502 and in the capsule rotating groove 502. The capsule rotating groove 502 performs centrifugal rotating motion, thereby throwing out the dry powder medicine in the capsule shell.

When the operator inhales through the suction nozzle 3, negative pressure is generated in the capsule rotating groove 502 and the capsule accommodating groove 501, and the air flow enters the capsule rotating groove 502 and the capsule accommodating groove 501 from the pair of air inlets 5021, and enters the capsule rotating groove 502. A vortex-like centrifugal airflow is formed. Driven by negative pressure and centrifugal airflow, the capsule whose shell has been destroyed enters the capsule rotating groove 502, and performs centrifugal rotating motion in the capsule rotating groove 502, thereby throwing the dry powder medicine out of the capsule shell, so that the dry powder medicine enters the capsule and rotates Slot 502. The operator continues to inhale through the suction nozzle 3, and the dry powder medicine is inhaled into the lungs. The operator only needs to control the inhalation force to control the inhalation speed of the dry powder medicine. The design of this embodiment can make the inhalation of the dry powder medicament more controllable and labor-saving.

Further, as shown in FIG. 1 , when the capsule compartment 5 is in the first position, the groove wall of the capsule rotation groove 502 is substantially flush with the hole wall of the first opening 202a. On the one hand, it is convenient to put the capsules from the first opening 202a when the capsule compartment 5 is in the first position; gaps, thereby reducing the waste of dry powder agents. Here, "substantially flush" can be understood as, within a certain error range, the groove wall of the capsule rotation groove 502 is considered to be flush with the hole wall of the first opening 202a.

As shown in FIG. 3 , in order to improve the stability and reliability of the rotation of the capsule compartment 5 relative to the body 2 , the inner wall of the accommodating cavity 201 has a guide structure 204 . The guide structures 204 are, for example, two protruding ribs shown in FIG. 3 .

In some embodiments of the present disclosure, the accommodating cavity 201 has a first clamping position and a second clamping position, and the capsule compartment 5 has an engaging portion (the first clamping position, the second clamping position and the engaging portion are not shown in the drawings). out), when the capsule compartment 5 is in the first position, the engaging part is engaged in the first engaging position, and when the capsule compartment 5 is in the second position, the engaging part is engaged in the second engaging position. On this basis, in some embodiments, the capsule compartment 5 can also be rotated relative to the body 2 to a third position between the first position and the second position, and the accommodating cavity 201 also has a third clamping position (not shown in the drawings). shown), when the capsule compartment 5 is in the third position, the engaging portion is snapped into the third engaging position. For example, the engaging portion can be designed in a convex shape.

After the engaging part is locked into the first card position, if there is no external force, the rotational position of the capsule compartment 5 relative to the main body 2 is locked. When placed in the capsule accommodating groove 501 , there will be no relative movement between the capsule compartment 5 and the body 2 .

Similarly, after the engaging portion is engaged in the third engaging position, if there is no external force, the rotational position of the capsule compartment 5 relative to the body 2 is locked. After the operator perceives the engaging action between the engaging portion and the third engaging position, The capsule shell can be broken by the capsule breaking mechanism 6, and there will be no relative movement between the capsule compartment 5 and the body 2.

Similarly, after the engaging part is engaged in the second engaging position, if there is no external force, the rotational position of the capsule compartment 5 relative to the main body 2 is locked. The dry powder medicine can be inhaled through the suction nozzle 3 without relative movement between the capsule compartment 5 and the main body 2 .

Through the above-mentioned design of the engaging portion and the first, second and third card positions, it is convenient for the operator to accurately operate the dry powder inhalation device 1, which makes the operation more convenient, and can also prevent the capsule or dry powder medicine from escaping from the air. Accidental release from the device.

As shown in FIGS. 3 and 4 , in some embodiments of the present disclosure, the capsule breaking mechanism 6 includes at least one lancet button configured to break the capsule shell through the lancet 6011 when pressed. The capsule breaking mechanism 6 of some embodiments includes two puncture-type buttons oppositely arranged on both sides of the capsule compartment 5, so that the capsule shell can be pierced from both ends. In addition, the capsule breaking mechanism 6 may also only include a puncture button provided on one side of the capsule compartment 5, so that the capsule shell can be pierced from one end.

The specific structural form of the needle button is not limited. As shown in FIGS. 3 , 4 and 5 , in these embodiments, the body 2 includes a blocking portion 205 for restricting the lancet button from coming out of the accommodating cavity 201 , and the side of the capsule compartment 5 close to the lancet button has a plurality of The guide hole 504 and the needle piercing hole 505 leading to the capsule accommodating groove 501; the puncture button includes a button body 6012, a spring 6013 and a puncture needle 6011, wherein the button body 6012 is slidably assembled in the accommodating cavity 201 and stops at the blocking part 205, the button The side of the main body 6012 away from the capsule compartment 5 is the pressing side. The side of the button body 6012 close to the capsule compartment 5 has a plurality of guide posts 6014 that pass through the plurality of guide holes 504 in one-to-one correspondence. The spring 6013 is arranged on the button. Between the main body 6012 and the capsule compartment 5 , the piercing needle 6011 is fixed on the side of the button body 6012 close to the capsule compartment 5 and passes through the needle hole 505 . As shown in FIG. 3 and FIG. 4 , the side of the button body 6012 close to the capsule compartment 5 also has a needle seat 6015 , the needle 6011 is fixed on the needle seat 6015 , and the spring 6013 is sleeved on the needle seat 6015 .

The guide hole 504 provides guidance for the movement of the button body 6012 relative to the capsule compartment 5 and the movement of the lancet 6011 relative to the needle piercing hole 505 . In the embodiment of the present disclosure, the number of the guide holes 504 is at least one, and the specific number is not limited. In addition, there are at least one set of correspondingly arranged needle piercing holes 505 and piercing needles 6011. In some embodiments, there are multiple sets of correspondingly arranged needle piercing holes 505 and piercing needles 6011, so that multiple piercing needles 6011 can pierce the capsule shell at the same time , the operation is more labor-saving and convenient.

In some embodiments, the capsule accommodating slot 501 is set on the rotation centerline 01S of the capsule compartment 5, and the axis of the needle-piercing hole 505 is coincident with the rotation centerline 01S of the capsule compartment 5, so that the piercing needle 6011 can apply force to pierce the capsule shell. break. Of course, the structure of the embodiment of the present disclosure is not limited to this, as long as the purpose of piercing the capsule shell can be achieved.

In order to facilitate the operation of the capsule compartment 5 to rotate relative to the body 2, in some embodiments, the dry powder inhalation device 1 further includes a toggle portion (not shown in the figure) connected with the capsule compartment 5. In order to drive the capsule compartment 5 to rotate relative to the main body 2 when being toggled by an external force.

In some embodiments of the present disclosure, as shown in FIGS. 1 and 2 , the first opening 202a and the second opening 202b of the body 2 may be in opposite positions, that is, the capsule compartment 5 is rotated from the first position to the second position Just turned 180 degrees. As shown in FIG. 6 , in other embodiments of the present disclosure, the first opening 202a and the second opening 202b may not be opposite to each other. For example, the capsule compartment 5 rotates through an acute angle from the first position to the second position. , obtuse angle or 90 degrees, which can be designed according to actual product requirements.

As shown in FIG. 7 , an embodiment of the present disclosure further provides an operation method applied to the dry powder inhalation device of any of the foregoing embodiments, including the following steps S101 to S103.

In step S101, when the capsule compartment is in the first position, the capsule is put into the capsule accommodating groove.

In step S102, the capsule compartment is rotated to the second position, and in the process of rotating from the second position or from the first position to the second position, the capsule shell of the capsule is destroyed by the capsule breaking mechanism, so that the dry powder medicine in the capsule shell is destroyed. shed.

In step S103, the dry powder medicine is sucked through the suction nozzle. As mentioned above, if the dry powder inhalation device is a recyclable dry powder inhalation device, after completing the above step S103, the capsule compartment can be rotated to the first position again, and then the broken capsule shell is taken out, and the dry powder inhalation device is cleaned and sterilized , After disinfection, keep it for the next use.

It can be seen from the above operation process that the actions of the operator putting in the capsule, destroying the capsule shell and inhaling the dry powder medicine are carried out at some rotational positions of the capsule compartment relative to the body. Compared with the related art, the administration operation is simple and convenient. It is more simplified and has higher structural reliability.

It should be understood that in this specification, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear" , "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", " The orientations or positional relationships or dimensions indicated by "radial", "circumferential", etc. are based on the orientations or positional relationships or dimensions shown in the drawings, and these terms are used only for convenience of description, rather than indicating or implying the indicated device or dimension. Elements must have, be constructed, and operate in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present disclosure.

In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", "third" may expressly or implicitly include one or more of that feature. In the description of the present disclosure, "plurality" means two or more, unless expressly and specifically defined otherwise.

In the present disclosure, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction between the two elements. . For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

In the present disclosure, unless otherwise expressly stated and defined, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

This specification provides many different implementations or examples that can be used to implement the present disclosure. It should be understood that these various embodiments or examples are purely exemplary and are not intended to limit the scope of the present disclosure in any way. Those skilled in the art can conceive of various changes or substitutions on the basis of the disclosure content of the specification of the present disclosure, and these should all be included within the protection scope of the present disclosure. Therefore, the scope of protection of the present disclosure should be determined by the scope of protection defined by the appended claims.

Claims (13)

A dry powder inhalation device comprising: a body, which has a receiving cavity, a first opening and a second opening, and the first opening and the second opening communicate with the receiving cavity; a suction nozzle, connected with the body and communicated with the accommodating cavity through the second opening; The screen mesh is arranged in the second opening; The capsule compartment is pivotally mounted in the accommodating cavity and has a capsule accommodating groove. The capsule compartment can be rotated relative to the body to a first position where the capsule accommodating groove is exposed to the first opening, and a second position where the capsule accommodating groove is opposite to the screen. ;and The capsule breaking mechanism is configured to break the capsule shell of the capsule in the capsule accommodating groove under external force. The dry powder inhalation device of claim 1, wherein: The capsule compartment also has a capsule rotating groove which is communicated with the capsule accommodating groove and is capable of accommodating the capsules for centrifugal rotating motion, and the side wall of the capsule rotating groove has a pair of air inlets arranged symmetrically in the center; When the capsule compartment is in the second position, inhale through the suction nozzle, the negative pressure and centrifugal airflow generated in the capsule holding tank can drive the destroyed capsule shell into the capsule rotating tank and perform centrifugal rotation in the capsule rotating tank, so that the Shake the dry powder medicine out of the capsule shell. The dry powder inhalation device of claim 2, wherein: When the capsule compartment is in the first position, the groove wall of the capsule rotating groove is substantially flush with the hole wall of the first opening. The dry powder inhalation device of claim 1, wherein: The accommodating cavity has a first latching position and a second latching position, the capsule compartment has a latching part, when the capsule compartment is in the first position, the latching part is latched into the first latching position, and when the capsule compartment is in the second position, the latching part is engaged The part is snapped into the second card slot. The dry powder inhalation device of claim 4, wherein: The capsule compartment can also be rotated relative to the body to a third position between the first position and the second position, and the accommodating cavity also has a third latching position. When the capsule compartment is in the third position, the engaging portion is latched into the third latching position. The dry powder inhalation device of claim 1, wherein: The capsule breaking mechanism includes at least one lancet button, each lancet button configured to break the capsule shell with the lancet when pressed. The dry powder inhalation device of claim 6, wherein: The body comprises a blocking portion for restricting the lancet button from coming out of the accommodating cavity, and the side of the capsule compartment close to the lancet button has at least one guide hole and at least one needle hole leading to the capsule accommodating groove; The puncture-type button includes a button body, a spring and at least one puncture needle, wherein the button body is slidably assembled in the accommodating cavity and stopped at the blocking part, the side of the button body away from the capsule compartment is the pressing side, and the side of the button body close to the capsule compartment is the pressing side. The side has at least one guide post corresponding to at least one guide hole, the spring is arranged between the button body and the capsule compartment, and the at least one piercing needle is fixed on the side of the button body close to the capsule compartment and is pierced in one-to-one correspondence. Provided in at least one piercing hole. The dry powder inhalation device of claim 7, wherein: At least one piercing hole includes a piercing hole, at least one piercing needle includes a piercing needle, the side of the button body close to the capsule compartment also has a piercing needle seat, the piercing needle is fixed on the piercing needle seat, and the spring is sleeved on the piercing needle seat. The dry powder inhalation device of claim 8, wherein: The capsule accommodating groove is arranged on the rotation centerline of the capsule compartment, and the axis of the needle-piercing hole coincides with the rotation centerline of the capsule compartment. The dry powder inhalation device of any one of claims 1 to 9, further comprising: The toggle portion connected with the capsule compartment is configured to drive the capsule compartment to rotate relative to the body when toggled by an external force. The dry powder inhalation device of any one of claims 1 to 9, wherein: The inner wall of the accommodating cavity has a guide structure, and the capsule compartment is slidably assembled on the guide structure. The dry powder inhalation device of any one of claims 1 to 9, wherein: The body comprises a first shell part and a second shell part which are butt-jointed to form the accommodating cavity, and the suction nozzle, the first shell part and the screen are integrally connected. A method of operation of the dry powder inhalation device according to any one of claims 1 to 12, comprising: When the capsule compartment is in the first position, put the capsule into the capsule accommodating groove; Rotating the capsule compartment to the second position, and in the process of rotating the second position or from the first position to the second position, the capsule shell of the capsule is destroyed by the capsule breaking mechanism, so that the dry powder medicine in the capsule shell is scattered; and Inhale dry powder medication through the mouthpiece.

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