Powder medicament inhaler with split type base

Abstract

In order to solve the problems that a lower shell of an existing dry powder inhaler is low in machining efficiency and high in whole piece replacement and maintenance cost, the utility model provides the powder medicament inhaler with the split type base, the base is of a split type structure and comprises an outer shell and an inner shell, the inner shell is arranged in the outer shell and connected with the outer shell in a clamped mode, and the inner shell is connected with the outer shell in a clamped mode. A first mounting plate is arranged at one end of the inner side of the first shell, a second mounting plate is arranged at the other end of the inner side of the first shell, and a first mounting groove is formed by the first mounting plate, the second mounting plate and the inner side of the first shell and used for playing a guiding role to facilitate mounting; the other end of the other inner side of the outer shell is provided with a fourth mounting plate, the third mounting plate, the fourth mounting plate and the other inner side of the outer shell form a second mounting groove which is used for guiding and facilitating mounting, and meanwhile a first limiting block and a second limiting block are arranged to further limit the position of the inner shell, so that mounting is facilitated.

Description

[0001] This application is a divisional application of Chinese patent application CN202321928949.9, filed on July 21, 2023, entitled “A powder medicine inhaler with a split base”. Technical Field

[0002] The utility model relates to the technical field of medical devices, and more specifically to a powder medicine inhaler with a split base. Background Art

[0003] At present, pulmonary inhalation is the best treatment for lung diseases such as asthma and chronic obstructive pneumonia. In recent years, it has been further expanded to the treatment of systemic diseases such as diabetes. Its market is huge. Compared with traditional drug delivery methods such as injection, oral administration, and external application, pulmonary inhalation has its unique advantages, mainly including: (1) The surface area of ​​the lungs is large, and the surface area of ​​the alveoli of adults can be as high as 140 square meters; (2) The alveolar wall is very thin, surrounded by a large number of capillaries; (3) The biological metabolic enzyme activity in the lungs is low; (4) Patients have good drug tolerance; (5) There is no first-pass effect in the liver, the dose is small, the effect is fast, and the toxic side effects are low; (6) It is suitable for the delivery of biological macromolecules. The difference is that pulmonary drug delivery requires the use of a specific drug delivery device to complete the dispersion, atomization and pulmonary delivery of the drug. The drug delivery device plays a key role in the pulmonary drug delivery system.

[0004] Existing DPIs can be divided into three categories: the first category: a reservoir-type powder medicine inhaler, which has a reservoir that can store a certain dose of powder inside. The powder medicine inhaler also has a quantitative component that can separate a certain dose of powder from the reservoir at each brake, and then the separated powder is inhaled into the patient through the discharge pipe. The second category: a multi-dose powder medicine inhaler, the powder is pre-stored independently in the blisters on the blister belt, the blisters are evenly distributed on the blister belt, and the blister belt is installed on the rotating disk inside the powder medicine inhaler; each time the powder medicine inhaler is braked, a blister is opened, and the powder is inhaled into the patient through the discharge pipe. The third category: a single-dose powder medicine inhaler, the powder is pre-stored independently in a single capsule, and the capsule is distributed on the capsule plate. When using it, the patient first takes out the capsule from the capsule plate, and then puts the taken capsule into the capsule cavity of the powder medicine inhaler. Press the button to puncture the capsule, and the powder is inhaled into the patient through the discharge pipe.

[0005] Among existing DPIs, single-dose capsule-type dry powder inhalers have always had the problem of being too complicated to operate compared to other inhalers. For example, after we break down the entire dry powder inhalation process in detail, it takes a total of 10 steps to complete drug inhalation. Including: 1) Take out the inhalation device; 2) Press the operating mechanism to separate the cover and the lower shell; 3) Open the cover; 4) Open the mouthpiece; 5) Put the capsule into the capsule cavity; 6) Pull the mouthpiece out of the cover and lock it on the plate; 7) Press the operating mechanism to make the needle pierce the capsule; 8) Inhale the powder; 9) Remove the empty capsule; 10) Clean and close the cover.

[0006] After studying the operation of commercially available products, it was found that in the sixth step, the nozzle needs to be removed from the cover to separate the nozzle and the cover, and then locked on the plate. This manual separation method is not only cumbersome to operate and inconvenient for patients, but also there is a possibility of accidentally contaminating the screen during the removal process.

[0007] Chinese patent document CN209884953U discloses that the utility model improves the dry powder inhaler, a limit mechanism is set at the hinge seat of the nozzle of the nozzle, and a baffle is set on the hinge seat of the plate. After the nozzle is opened to a certain angle, the limit mechanism resists the baffle to limit the opening angle of the nozzle after opening, but does not affect the opening angle of the cover, thereby realizing the automatic separation of the nozzle and the cover. While simplifying the operation, it avoids the risk of contamination caused by pulling the nozzle out of the cover. In order to further simplify the operation, the utility model also provides a protrusion on the nozzle. During the opening process of the cover, the closing element on the cover contacts the protrusion, and the maximum friction force generated can open the nozzle, thereby realizing the one-step opening of the cover and the nozzle.

[0008] However, the lower shell of the dry powder inhaler is an integrally formed structure, which requires the outer shell to be firstly injection molded, and then a secondary injection molding process is performed inside the outer shell, which has low production efficiency, and the integral molding can only be replaced as a whole, resulting in high maintenance costs. Utility Model Content

[0009] In view of this, in order to solve the problems of low processing efficiency of the lower shell of the existing dry powder inhaler and high replacement and maintenance costs of the whole piece, the utility model proposes a powder medicine inhaler with a split base, the base 5 is a split structure, the base 5 includes an outer shell 6 and an inner shell 7, the inner shell 7 is arranged in the outer shell 6, the inner shell 7 is connected with the outer shell 6 by snapping, one end of the inner side of the outer shell 6 is provided with a first mounting plate 61, the other end of the inner side of the outer shell 6 is provided with a second mounting plate 62, the first mounting plate 61, the second mounting plate 62 and the inner side of the outer shell 6 form a first mounting groove 63 for guiding and facilitating installation, one end of the other inner side of the outer shell 6 is provided with a third mounting plate 64, the other end of the other inner side of the outer shell 6 is provided with a fourth mounting plate 65, the third mounting plate 64, the fourth mounting plate 65 and the other inner side of the outer shell 6 form a second mounting groove 66 for guiding and facilitating installation, and at the same time, a first limit block 67 and a second limit block are provided to further limit the position of the inner shell 7 for easy installation.

[0010] A powder medicine inhaler with a split base comprises an upper cover 1, an inhalation assembly 2, a capsule chamber 3, a puncture assembly 4, and a base 5. The capsule chamber 3 is arranged above the base 5 for providing powder medicine, the inhalation assembly 2 is arranged above the capsule chamber 3, and the puncture assembly 4 is arranged on the side of the capsule chamber 3 for puncturing the bottom of the capsule chamber 3 so that the medicine powder enters the inhalation assembly 2 above. The upper cover 1 is arranged above the inhalation assembly 2, and the upper cover 1 and the base 5 are connected by a single axis. The base 5 is a split structure, and the base 5 comprises an outer shell 6 and an inner shell 7. The inner shell 7 is arranged inside the outer shell 6, and the inner shell 7 is connected to the outer shell 6 by snapping.

[0011] In a preferred embodiment of the utility model, a first mounting plate 61 is provided at one end of an inner side of the shell 6, a second mounting plate 62 is provided at the other end of an inner side of the shell 6, the first mounting plate 61 and the second mounting plate 62 are symmetrically arranged, the first mounting plate 61, the second mounting plate 62 and the inner side of the shell 6 form a first mounting groove 63 for guiding and facilitating installation, a third mounting plate 64 is provided at one end of the other inner side of the shell 6, a fourth mounting plate 65 is provided at the other end of the other inner side of the shell 6, the third mounting plate 64 and the fourth mounting plate 65 are symmetrically arranged, the third mounting plate 64, the fourth mounting plate 65 and the other inner side of the shell 6 form a second mounting groove 66 for guiding and facilitating installation, and the first mounting groove 63 and the second mounting groove 66 are symmetrically arranged.

[0012] Furthermore, the inner shell 7 is snap-connected with the outer shell 6 via the first mounting groove 63 and the second mounting groove 66 , and an observation window 75 is formed at the connection between the inner shell 7 and the first mounting groove 63 and the second mounting groove 66 for observing the capsule chamber 3 .

[0013] Furthermore, a first limit block 67 is provided on the second mounting plate 62 , and a second limit block is provided on the fourth mounting plate 65 . The first limit block 67 and the second limit block are symmetrically arranged, and both the first limit block 67 and the second limit block are used to limit the position of the inner shell 7 .

[0014] Furthermore, a third limit block 68 is provided at the left inner end of the outer shell 6 , and the third limit block 68 is used to limit the position of the inner shell 7 .

[0015] Furthermore, the sides of the first limit block 67, the second limit block and the third limit block 68 are all downwardly inclined slope structures, which facilitate the guiding function when the inner shell 7 is installed.

[0016] In a preferred embodiment of the utility model, the inner shell 7 includes a bottom plate 71 and a first protruding plate 72. The bottom plate 71 and the first protruding plate 72 are an integrally formed structure. The top of the bottom plate 71 is respectively abutted against the bottom of the first limit block 67 and the second limit block. The first protruding plate 72 is provided at the front and rear ends above the bottom plate 71. The first protruding plate 72 is respectively clamped with the first mounting groove 63 and the second mounting groove 66.

[0017] Furthermore, a second protruding plate 73 is provided at the upper left end of the bottom plate 71, and the top of the second protruding plate 73 abuts against the bottom of the third limit block 68. The second protruding plate 73 fits with the upper inner side of the shell 6 to reduce the cavity area, which is used to increase the gas flow rate to assist in conveying the powder.

[0018] In a preferred embodiment of the present invention, the inner shell 7 is made of transparent plastic material, and the outer shell 6 is made of non-transparent plastic material.

[0019] In a preferred embodiment of the utility model, an auxiliary installation column 74 is also provided in the middle above the bottom plate 71 for assisting in correcting the installation positioning of the capsule chamber 3. When the capsule chamber 3 is installed correctly, the capsule chamber 3 is located on the right side of the auxiliary installation column 74, which plays an anti-mistake effect.

[0020] In summary, the utility model has the following advantages: the utility model proposes a powder medicine inhaler with a split base, the base 5 is a split structure, which is easy to disassemble and assemble, and reduces the cost. The base 5 includes an outer shell 6 and an inner shell 7. The inner shell 7 is arranged in the outer shell 6, and the inner shell 7 is connected to the outer shell 6 by snapping. A first mounting plate 61 is arranged at one end of the inner side of the outer shell 6, and a second mounting plate 62 is arranged at the other end of the inner side of the outer shell 6. The first mounting plate 61, the second mounting plate 62 and the inner side of the outer shell 6 form a first mounting groove 63 for guiding and facilitating installation. A third mounting plate 64 is arranged at one end of the other inner side of the outer shell 6, and a fourth mounting plate 65 is arranged at the other end of the other inner side of the outer shell 6. The third mounting plate 64, the fourth mounting plate 65 and the other inner side of the outer shell 6 form a second mounting groove 66 for guiding and facilitating installation. At the same time, a first limit block 67 and a second limit block are arranged to further limit the position of the inner shell 7 for easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of the powder medicine inhaler with a split base.

[0022] Figure 2 The utility model is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base.

[0023] Figure 3 The utility model is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base.

[0024] Figure 4 The utility model is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base.

[0025] Figure 5 The utility model is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base.

[0026] Figure 6 The utility model is a schematic diagram of the inner shell structure of the powder medicine inhaler with a split base.

[0027] Main component symbols

[0028]

[0029] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] like Figure 1 , which is a schematic diagram of the overall structure of the powder medicine inhaler with a split base of the utility model; Figure 2FIG. 1 is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base of the utility model; Figure 3 FIG. 1 is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base of the utility model; Figure 4 FIG. 1 is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base of the utility model; Figure 5 FIG. 1 is a schematic diagram of the connection structure between the inner shell and the outer shell of the powder medicine inhaler with a split base of the utility model; Figure 6 , which is a schematic diagram of the inner shell structure of the powder medicine inhaler with a split base of the utility model.

[0031] A powder medicine inhaler with a split base comprises an upper cover 1, an inhalation assembly 2, a capsule chamber 3, a puncture assembly 4, and a base 5. The capsule chamber 3 is arranged above the base 5 for providing powder medicine, the inhalation assembly 2 is arranged above the capsule chamber 3, and the puncture assembly 4 is arranged on the side of the capsule chamber 3 for puncturing the bottom of the capsule chamber 3 so that the medicine powder enters the inhalation assembly 2 above. The upper cover 1 is arranged above the inhalation assembly 2, and the upper cover 1 and the base 5 are connected by a single axis. The base 5 is a split structure, and the base 5 comprises an outer shell 6 and an inner shell 7. The inner shell 7 is arranged inside the outer shell 6, and the inner shell 7 is connected to the outer shell 6 by snapping.

[0032] A first mounting plate 61 is provided at one end of an inner side of the shell 6, and a second mounting plate 62 is provided at the other end of an inner side of the shell 6. The first mounting plate 61 and the second mounting plate 62 are symmetrically arranged. The first mounting plate 61, the second mounting plate 62 and the inner side of the shell 6 form a first mounting groove 63 for guiding and facilitating installation. A third mounting plate 64 is provided at one end of the other inner side of the shell 6, and a fourth mounting plate 65 is provided at the other end of the other inner side of the shell 6. The third mounting plate 64 and the fourth mounting plate 65 are symmetrically arranged. The third mounting plate 64, the fourth mounting plate 65 and the other inner side of the shell 6 form a second mounting groove 66 for guiding and facilitating installation. The first mounting groove 63 and the second mounting groove 66 are symmetrically arranged.

[0033] The inner shell 7 is snap-connected with the outer shell 6 via the first mounting groove 63 and the second mounting groove 66 , and an observation window 75 is formed at the connection between the inner shell 7 and the first mounting groove 63 and the second mounting groove 66 for observing the capsule chamber 3 .

[0034] The second mounting plate 62 is further provided with a first limit block 67 , and the fourth mounting plate 65 is further provided with a second limit block. The first limit block 67 and the second limit block are symmetrically arranged, and both the first limit block 67 and the second limit block are used to limit the position of the inner shell 7 .

[0035] A third limit block 68 is also provided at the inner left end of the outer shell 6 , and the third limit block 68 is used to limit the position of the inner shell 7 .

[0036] The sides of the first limiting block 67 , the second limiting block and the third limiting block 68 are all downwardly inclined slope structures, which can serve as a guide when the inner shell 7 is installed.

[0037] The inner shell 7 includes a bottom plate 71 and a first protruding plate 72. The bottom plate 71 and the first protruding plate 72 are an integrally formed structure. The top of the bottom plate 71 is respectively abutted against the bottom of the first limit block 67 and the second limit block. The first protruding plates 72 are provided at the front and rear ends above the bottom plate 71. The first protruding plates 72 are respectively correspondingly engaged with the first mounting groove 63 and the second mounting groove 66.

[0038] A second protruding plate 73 is also provided at the upper left end of the bottom plate 71, and the top of the second protruding plate 73 abuts against the bottom of the third limit block 68. The second protruding plate 73 fits with the upper inner side of the shell 6 to reduce the cavity area, which is used to increase the gas flow rate to assist in conveying the powder.

[0039] The inner shell 7 is made of transparent plastic material, and the outer shell 6 is made of non-transparent plastic material.

[0040] An auxiliary installation column 74 is also provided in the middle above the bottom plate 71 for assisting in correcting the installation and positioning of the capsule chamber 3. When the capsule chamber 3 is correctly installed, the capsule chamber 3 is located on the right side of the auxiliary installation column 74, which plays a fool-proof role.

[0041] The utility model has the following advantages: the utility model proposes a powder medicine inhaler with a split base, the base 5 is a split structure, which is easy to disassemble and assemble, and reduces the cost. The base 5 includes an outer shell 6 and an inner shell 7. The inner shell 7 is arranged in the outer shell 6, and the inner shell 7 is connected to the outer shell 6 by snapping. A first mounting plate 61 is arranged at one end of an inner side of the outer shell 6, and a second mounting plate 62 is arranged at the other end of an inner side of the outer shell 6. The first mounting plate 61, the second mounting plate 62 and the inner side of the outer shell 6 form a first mounting groove 63 for guiding and facilitating installation. A third mounting plate 64 is arranged at one end of the other inner side of the outer shell 6, and a fourth mounting plate 65 is arranged at the other end of the other inner side of the outer shell 6. The third mounting plate 64, the fourth mounting plate 65 and the other inner side of the outer shell 6 form a second mounting groove 66 for guiding and facilitating installation. At the same time, a first limit block 67 and a second limit block are arranged to further limit the position of the inner shell 7 for easy installation.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A powder medicine inhaler with a split base, characterized in that: include: A base (5), the base (5) comprising: an outer shell (6) and an inner shell (7), the inner shell (7) being arranged inside the outer shell (6), the inner shell (7) being connected to the outer shell (6) by snap-fitting; The inner shell (7) comprises: a bottom plate (71), a second protruding plate (73) being provided at the upper left end of the bottom plate (71); The top of the second protruding plate (73) abuts against the bottom of the third limiting block (68), and the second protruding plate (73) fits against the upper inner portion of the housing (6) to reduce the cavity area, thereby increasing the gas flow rate and assisting in conveying the powder.

2. A powder medicine inhaler with a split base according to claim 1, characterized in that: The inner shell (7) further comprises: a first protruding plate (72); the top of the bottom plate (71) is respectively in contact with the first limit block (67) and the bottom of the second limit block; the first protruding plate (72) is provided at the front and rear ends above the bottom plate (71); the first protruding plate (72) is respectively correspondingly engaged with the first mounting groove (63) and the second mounting groove (66).

3. A powder medicine inhaler with a split base according to claim 2, characterized in that: The bottom plate (71) and the first protruding plate (72) are an integrally formed structure.

4. A powder medicine inhaler with a split base according to claim 1, characterized in that: A first mounting plate (61) is provided at one end of an inner side of the shell (6), and a second mounting plate (62) is provided at the other end of an inner side of the shell (6). The first mounting plate (61) and the second mounting plate (62) are symmetrically arranged. The first mounting plate (61), the second mounting plate (62) and the inner side of the shell (6) form a first mounting groove (63). A third mounting plate (64) is provided at one end of the other inner side of the shell (6), and a fourth mounting plate (65) is provided at the other end of the other inner side of the shell (6). The third mounting plate (64) and the fourth mounting plate (65) are symmetrically arranged. The third mounting plate (64), the fourth mounting plate (65) and the inner side of the shell (6) form a second mounting groove (66). The first mounting groove (63) and the second mounting groove (66) are symmetrically arranged.

5. A powder medicine inhaler with a split base according to claim 4, characterized in that: The second mounting plate (62) is also provided with a first limit block (67), and the fourth mounting plate (65) is also provided with a second limit block, the first limit block (67) and the second limit block are symmetrically arranged, the first limit block (67) and the second limit block are both used to limit the position of the inner shell (7), and a third limit block (68) for limiting the position of the inner shell (7) is also provided at an inner left end of the outer shell (6).

6. A powder medicine inhaler with a split base according to claim 5, characterized in that: The side edges of the first limit block (67), the second limit block and the third limit block (68) are all downwardly inclined slope structures, so as to facilitate guiding when installing the inner shell (7).

7. A powder medicine inhaler with a split base according to claim 1, characterized in that: The base (5) is a split structure.

8. A powder medicine inhaler with a split base according to claim 1, characterized in that: A capsule chamber (3) for providing powder medicine is provided above the base (5); an inhalation assembly (2) is provided above the capsule chamber (3); a puncture needle assembly (4) is provided on the side of the capsule chamber (3) for piercing the bottom of the capsule chamber (3) so that the medicine powder enters the inhalation assembly (2) above; an upper cover (1) is provided above the inhalation assembly (2); and the upper cover (1) is connected to the base (5) via a shaft.

9. A powder medicine inhaler with a split base according to claim 4, characterized in that: The inner shell (7) and the outer shell (6) are connected by snapping together through the first mounting groove (63) and the second mounting groove (66); an observation window (75) for observing the capsule chamber (3) is formed at the connection between the inner shell (7) and the first mounting groove (63) and the second mounting groove (66).

10. A powder medicine inhaler with a split base according to claim 1, characterized in that: An auxiliary installation column (74) for assisting the installation and positioning of the correction capsule chamber (3) is also provided in the middle portion above the bottom plate (71).

Images