Dry powder inhaler adaptable to capsule medicine plate

Abstract

The invention relates to the technical field of dry powder inhalers, and discloses a dry powder inhaler capable of adapting to a capsule medicine plate, which comprises a body, a suction nozzle and a movable shell capable of being pressed by moving the two sides of the body, an administration cavity communicated with an administration channel of the suction nozzle is formed in an inner cavity of the body, and an execution cavity communicated with the administration cavity is formed in the lower part of the body; a medicine plate groove penetrating through the execution cavity is formed in the end face of the body, and a limiting strip used for limiting the capsule medicine plate to be located at the puncture position is arranged in the execution cavity. An elastic rod is arranged above the puncture position of the dosing cavity, the end, away from the movable shell, of the push rod abuts against the elastic rod, and the puncture needle at the end of the elastic rod downwards punctures the capsule medicine plate at the puncture position. According to the device, by adapting to the capsule medicine plate, the medicine plate only needs to be pushed to move to the puncture position at a time, and medicine administration can be completed without manually taking out and placing the capsule; and meanwhile, the whole device can adapt to different capsule medicine plates, and the overall applicability and use convenience are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dry powder inhalers, in particular to a dry powder inhaler capable of adapting to a capsule medicine plate. BACKGROUND

[0002] Compared with oral and subcutaneous injection, pulmonary administration has obvious advantages. The mucosa of human nasal cavity, bronchus and lung has large specific surface area, and the total human respiratory tract has 23 branches, the total surface area of adult alveoli is 60-100 square meters, the alveolar wall is thin and surrounded by a large number of capillaries. Drug particles can quickly penetrate the alveolar mucosa and directly enter the blood circulation, which has the advantages of no intestinal tract degradation, no liver first-pass effect, low toxicity and side effects, etc. Pulmonary administration is the best treatment for lung diseases such as asthma and chronic obstructive pulmonary disease, and has been gradually applied to the treatment of systemic diseases such as diabetes in recent years, and has good market prospects.

[0003] The existing Chinese patent, the patent with the authorization announcement number CN219681391U discloses a double-capsule medicine powder inhaler, which comprises a base, the top end of the base is connected with an upper cover through a mounting assembly, the upper cover is provided with a suction nozzle at the top, a passage plate is arranged between the base and the upper cover, an out-powder cavity is formed between the inner wall of the upper cover and the top surface of the passage plate, an open-capsule cavity is formed between the inner wall of the base and the bottom surface of the passage plate, an open-capsule mechanism is slidably arranged in the inner wall of the open-capsule cavity, the top end of the passage plate is provided with an out-powder mechanism, and air inlets are symmetrically arranged on the inner wall of the passage plate on both sides of the out-powder mechanism for connecting the out-powder cavity, the air inlets and the open-capsule cavity. The open-capsule mechanism comprises a capsule seat, a capsule bin, a sliding block, a first breaking knife, a second breaking knife and a sliding groove. As disclosed in the above patent, a double-capsule medicine powder inhaler, the user places the capsule in the capsule cavity, and then punctures the capsule with a needle. Each time the drug is administered, the above operation needs to be repeated. The dry powder inhaler in the prior art generally uses the above method for administration. In this case, the user needs to manually take out the capsule on the capsule plate and place it in the capsule cavity each time the drug is administered. The surface of the capsule is easy to contact with the hand, which can easily cause contamination of the drug. At the same time, this operation method needs to repeatedly take out the capsule and place it in the capsule cavity, which is poor in user experience. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a dry powder inhaler capable of adapting to a capsule medicine plate, which solves the problem that the existing dry powder inhaler needs to manually take out the capsule on the capsule plate and place it in the capsule cavity each time the drug is administered, the surface of the capsule is easy to contact with the hand, which can easily cause contamination of the drug, and the operation method needs to repeatedly take out the capsule and place it in the capsule cavity, which is poor in user experience.

[0005] To achieve the above object, the present application is realized by the following technical scheme:

[0006] A dry powder inhaler capable of accommodating a capsule medicine plate comprises a body, a suction nozzle and a movable shell capable of being pressed on both sides of the body, a medicine cavity is arranged in the inner cavity of the body and is in communication with a medicine delivery channel of the suction nozzle, an execution cavity is arranged in the lower part of the body and is in communication with the medicine cavity, a medicine plate groove is arranged on the end face of the body and penetrates through the execution cavity, and a limiting strip is arranged in the execution cavity and is used for limiting the capsule medicine plate to be in a puncture position; an elastic rod is arranged above the puncture position of the medicine cavity, one end of the elastic rod extends into the execution cavity and is fixedly provided with a puncture needle, a push rod is fixedly arranged on one side of the movable shell, and the end of the push rod away from the movable shell is in abutment with the elastic rod; the movable shell is pressed, the push rod pushes the elastic rod to elastically deform, and the puncture needle at one end of the elastic rod punctures downwardly the capsule medicine plate in the puncture position.

[0007] Preferably, the elastic rod is fixedly provided with a dislodging claw at one end of the puncture needle, and the dislodging claws are symmetrically arranged on both sides of the puncture needle.

[0008] Preferably, the execution cavity is fixedly provided with a limiting plate, and the limiting plate cooperates with the medicine plate groove to limit the capsule medicine plate.

[0009] Preferably, the limiting strip is made of an elastic material and is symmetrically arranged on the limiting plate, and two limiting strips limit and clamp a single-row capsule cavity on the capsule medicine plate.

[0010] Preferably, the body is provided with a movable cavity on both sides, the movable shell is in sliding connection with the cavity wall of the movable cavity, a communication port in communication with the medicine cavity is arranged on the cavity wall of the movable cavity, one end of the elastic rod is fixed on the cavity wall of the movable cavity, and the other end of the elastic rod extends out of the communication port and is arranged in the execution cavity.

[0011] Preferably, springs are fixedly arranged between the movable cavity and the movable shell, and the two springs are symmetrically arranged on both sides of the push rod.

[0012] Preferably, the suction nozzle is symmetrically provided with a clamping plate on the lower end face, and the body is provided with a clamping groove in clamping connection with the clamping plate.

[0013] Preferably, a filter screen assembly is detachably mounted on the lower part of the suction nozzle, and a medicine delivery channel is arranged in the suction nozzle and is in communication with the filter screen assembly and the medicine cavity.

[0014] Preferably, a cover is clamped and connected to the outside of the suction nozzle, and a recess is arranged on the cover and is consistent with the contour of the outside of the suction nozzle.

[0015] The present application has the following beneficial effects:

[0016] The dry powder inhaler of the adaptive capsule medicine plate can limit and place the whole plate capsule at the puncture position through the medicine plate groove and the limiting strip, so that the elastic rod and the needle on the elastic rod are moved towards the capsule medicine plate by pressing the movable shell, the tin foil on the surface of the capsule medicine plate and the capsule on the medicine plate are pierced, and then the user can inhale the capsule powder through the dosing cavity and the suction nozzle. In the whole process, the user does not need to directly touch the capsule particles, and after single use, the subsequent dosing requirement can be completed by pushing the capsule medicine plate so that the capsules in different rows on the capsule medicine plate are located at the puncture position. The whole process is convenient and fast, and has wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the overall structure of the application;

[0018] Figure 2 It is a first perspective view of the component split structure of the application;

[0019] Figure 3 It is a second perspective view of the component split structure of the application;

[0020] Figure 4 It is a bottom view of the structure of the application;

[0021] Figure 5 It is a front view of the structure of the application; Figure 4 It is a front view of the structure of the application;

[0022] Figure 6 It is a front view of the structure of the application; Figure 4 It is a front view of the structure of the application;

[0023] Figure 7 It is a schematic view of the internal structure of the body of the application.

[0024] In the figure: 1, body; 11, medicine plate groove; 12, capsule medicine plate; 13, movable cavity; 14, dosing cavity; 15, communication port; 16, elastic rod; 17, needle; 18, paw; 19, execution cavity; 110, limiting plate; 111, limiting strip; 112, buckle groove; 113, observation window; 2, cover; 3, movable shell; 31, push rod; 32, spring; 4, suction nozzle; 41, dosing channel; 42, filter screen assembly; 43, buckle plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0026] A dry powder inhaler suitable for capsule medicine plate 12, comprising a body 1, a suction nozzle 4, and a movable shell 3 that can be pressed on both sides of the body 1, the inner cavity of the body 1 is provided with a medicine cavity 14 which is in communication with the medicine delivery channel 41 of the suction nozzle 4, the lower part of the body 1 is provided with an execution cavity 19 which is in communication with the medicine cavity 14, the end face of the body 1 is provided with a medicine plate groove 11 which penetrates the execution cavity 19, and the execution cavity 19 is provided with a limiting strip 111 which is used to limit the capsule medicine plate 12 to be in the puncture position; the medicine cavity 14 above the puncture position is provided with an elastic rod 16, one end of the elastic rod 16 extends into the execution cavity 19 and is fixedly provided with a needle 17, one side of the movable shell 3 is fixedly provided with a push rod 31, the end of the push rod 31 away from the movable shell 3 abuts against the elastic rod 16, the movable shell 3 is pressed, the push rod 31 pushes the elastic rod 16 to elastically deform, and the needle 17 at one end of the elastic rod 16 punctures the capsule medicine plate 12 at the puncture position downward.

[0027] As shown in Figure 5 , in the above technical solution, the medicine plate groove 11 and the limiting strip 111 are arranged to limit the whole plate capsule to be placed in the puncture position, so that by pressing the movable shell 3, the elastic rod 16 and the needle 17 thereon are moved towards the capsule medicine plate 12, the tin foil on the surface of the capsule medicine plate 12 and the capsules on the medicine plate are pierced, and then the personnel can inhale the capsule powder through the medicine cavity 14 and the suction nozzle 4. In the whole process, the personnel do not need to directly touch the capsule particles, and after single use, only the capsule medicine plate 12 needs to be pushed to make the capsules in different rows on it located at the puncture position, so that the subsequent medicine delivery requirement can be met, which is overall convenient and fast, and has wide application range.

[0028] In actual application, only the medicine plate groove 11 needs to be arranged to have the mainstream width size of the capsule medicine plate on the market, so that the whole device can be adapted to the mainstream capsule medicine plate on the market, and the applicability of the whole device is improved.

[0029] The elastic rod 16 is fixedly provided with a paw 18 at one end of the needle 17, and the paw 18 is symmetrically arranged on both sides of the needle 17. As shown in Figure 5 and Figure 7 , in the technical solution, the paw 18 is arranged to push the tin foil to the two sides when the needle 17 pierces the tin foil of the capsule plate and the capsule shell, so that the tin foil shrinks towards the two sides of the capsule shell, and then when the medicine powder in the capsule is sucked through the suction nozzle 4, the tin foil is prevented from interfering with the suction and adhesion of the medicine powder, so that the medicine is not wasted.

[0030] The execution cavity 19 is fixedly provided with a limiting plate 110, and the limiting plate 110 cooperates with the medicine plate groove 11 to limit the capsule medicine plate 12. As shown in Figure 5 and 6As shown, in the technical scheme, the limiting plate 110 is arranged, which can cooperate with the medicine plate groove 11 to limit the position of the capsule medicine plate 12 in the execution cavity 19, so as to ensure that the capsule medicine plate 12 is stably positioned at the puncture position; two can stably support the whole capsule medicine plate 12, and when the needle 17 punctures the capsule, the whole capsule medicine plate 12 is not easy to collapse and deform downward, which affects the smooth puncture of the needle 17.

[0031] The limiting strip 111 is made of elastic material and is symmetrically arranged on the limiting plate 110. Two limiting strips 111 limit the single-row capsule cavity on the capsule medicine plate 12. The body 1 is provided with an observation window 113 for observing whether the capsule medicine plate 12 is clamped in place. Figure 1 With Figure 6 As shown, in the technical scheme, the limiting strip 111 is made of elastic material, which can deform when the personnel push the capsule medicine plate 12, so that the personnel can easily push the capsule medicine plate 12 to switch different rows of capsule cavities for subsequent use; the observation window 113 is arranged, which can facilitate personnel to observe whether the capsule cavity is switched.

[0032] The body 1 is provided with a movable cavity 13, and the movable shell 3 is slidably connected with the cavity wall of the movable cavity. The cavity wall of the movable cavity 13 is provided with a communication port 15 communicated with the medicine cavity 14. One end of the elastic rod 16 is fixed to the cavity wall of the movable cavity 13, and the other end extends out of the communication port 15 and is arranged in the execution cavity 19. Figure 7 As shown, in the technical scheme, the movable cavity 13 and the communication port 15 are arranged, which facilitates the daily installation of the elastic rod 16 and the movable shell 3, and improves the overall installation efficiency.

[0033] The spring 32 is fixedly arranged between the movable cavity 13 and the movable shell 3, and the two springs 32 are symmetrically arranged on both sides of the pushing rod 31. Figure 2 With Figure 3 As shown, the spring 32 is arranged, which can automatically reset after the movable shell 3 is pressed daily.

[0034] In the technical scheme, the lower end surface of the suction nozzle 4 is symmetrically provided with a buckle plate 43, and the body 1 is provided with a buckle groove 112 buckled with the buckle plate 43. The lower part of the suction nozzle 4 is detachably provided with a filter screen assembly 42, and the suction nozzle 4 is provided with a medicine channel 41 communicated with the filter screen assembly 42 and the medicine cavity 14.

[0035] As shown, Figure 3 With Figure 7 As shown in the above technical scheme, the buckle plate 43 and the buckle groove 112 are arranged, which can facilitate the buckle installation of the suction nozzle 4 and the body 1, and the detachable filter screen assembly 42 can facilitate the daily disassembly and cleaning of the suction nozzle 4 and the filter screen assembly 42 thereon.

[0036] The outer part of the suction nozzle 4 is buckled with the cover 2, and the cover 2 is provided with a concave cavity consistent with the outer contour of the suction nozzle 4. Figure 3 As shown in the drawings, in the technical scheme, the cover 2 is arranged to cover the suction nozzle 4 in the daily idle state, so as to ensure the stability of the internal environment of the inhaler and reduce the pollution of the external environment to the internal cavity of the inhaler. Figure 4 As shown in the drawings, in the technical scheme, the cover 2 is arranged to cover the suction nozzle 4 in the daily idle state, so as to ensure the stability of the internal environment of the inhaler and reduce the pollution of the external environment to the internal cavity of the inhaler.

[0037] It should be noted that, in this article, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the statement "including a limited element" does not exclude the existence of other identical elements in the process, method, article or equipment including the element.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dry powder inhaler adaptable to capsule tablets, comprising a main body, a mouthpiece, and movable shells pressable on both sides of the displacement main body, characterized in that, The body has a drug delivery chamber connected to the mouthpiece drug delivery channel. An execution chamber connected to the drug delivery chamber is opened at the lower part of the body. A drug plate groove penetrating the execution chamber is opened on the end face of the body. A limiting strip is set in the execution chamber to limit the capsule drug plate to the puncture position. An elastic rod is set above the puncture position in the drug delivery chamber. One end of the elastic rod extends into the execution chamber and is fixedly equipped with a needle. A push rod is fixedly set on one side of the movable shell. The end of the push rod away from the movable shell abuts against the elastic rod. When the movable shell is pressed, the push rod pushes the elastic rod to undergo elastic deformation. The needle at one end of the elastic rod punctures the capsule drug plate at the puncture position downward.

2. The dry powder inhaler adaptable to capsule blister packs according to claim 1, characterized in that: The elastic rod is fixedly provided with a prying claw at one end of the needle, and the prying claws are symmetrically arranged on both sides of the needle.

3. The dry powder inhaler adaptable to capsule blister packs according to claim 2, characterized in that: The execution cavity is fixedly provided with a limiting plate, which cooperates with the medicine plate groove to limit the position of the capsule medicine plate.

4. The dry powder inhaler adaptable to capsule blister packs according to claim 3, characterized in that: The limiting strips are made of elastic material and are arranged symmetrically in pairs on the limiting plate. The two pairs of limiting strips limit and engage with the single-row capsule cavity on the capsule plate. An observation window is provided on the main body to observe whether the capsule plate is engaged in place.

5. The dry powder inhaler adaptable to capsule blister packs according to any one of claims 2-4, characterized in that: Movable cavities are provided on both sides of the main body. The movable shell is slidably connected to the cavity wall of the movable cavity. A communication port communicating with the drug delivery cavity is opened on the cavity wall of the movable cavity. One end of the elastic rod is fixed to the cavity wall of the movable cavity, and the other end passes through the communication port and extends into the execution cavity.

6. The dry powder inhaler adaptable to capsule blister packs according to claim 5, characterized in that: A spring is fixedly installed between the movable cavity and the movable shell, with two springs symmetrically arranged on both sides of the push rod.

7. The dry powder inhaler adaptable to capsule blister packs according to claim 6, characterized in that: The lower end face of the suction nozzle is symmetrically arranged with a buckle plate, and the body is arranged with a buckle groove that is buckled and connected to the buckle plate.

8. The dry powder inhaler adaptable to capsule blister packs according to claim 7, characterized in that: The lower part of the suction nozzle is detachably equipped with a filter assembly, and the inside of the suction nozzle is provided with a drug delivery channel that communicates with the filter assembly and the drug delivery chamber.

9. The dry powder inhaler adaptable to capsule blister packs according to claim 8, characterized in that: The nozzle is externally snapped to a cover, and the cover has a cavity that matches the outer contour of the nozzle.

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