A powder inhalation device

Abstract

The powder inhalation device comprises a dustproof cover, a suction nozzle, a button, a capsule bin, a capsule seat and a lower cover. The button comprises a left button and a right button, and air inlets are arranged at upper ends of the left button and the right button. A second hollow spike is arranged on an inner side wall of the left button and communicates with the air inlet of the left button. A third hollow spike is arranged on an inner side wall of the right button and communicates with the air inlet of the right button. The second hollow spike and the third hollow spike are not on the same axis. A first hollow spike that communicates with an air flow channel is further arranged below the suction nozzle. The first hollow spike, the second hollow spike and the third hollow spike pierce the capsule, air enters through the air inlets, the air flow forms a spiral air flow around the outer wall of the first hollow spike, and the spiral air flow is blocked at the bottom of the capsule bin. The air flow moves upward and drives the powder in the capsule to finally enter the human body through the inner wall of the first hollow spike.

Description

[0001] This application is a divisional application of Chinese patent application CN201911377180.4, filed on December 27, 2019, entitled "A Powder Inhalation Device". Technical Field

[0002] This invention relates to the field of medical devices, and more specifically, to a powder inhalation device. Background Technology

[0003] In the field of powder inhaler technology, there are various types of powder inhalers, which can be divided into three main categories:

[0004] The first type is the reservoir-type powder inhaler, which contains a reservoir to store a specific dose of powder. This inhaler also has a metering component that dispenses a certain amount of powder from the reservoir with each use. The dispensed powder is then inhaled into the patient through an exhaust tube. The disadvantages of this type of powder inhaler are: 1. The amount of powder delivered each time is inconsistent; 2. The inhaler has poor sealing, so the powder is easily moistened in humid environments, affecting its effectiveness; 3. During the powder dispensing process, some powder may remain inside the inhaler, causing contamination and potentially harming the user.

[0005] The second type is the multi-dose powder inhaler. The powder is pre-stored individually in the blister pack, which is evenly distributed on the pack and mounted on a rotating disc inside the inhaler. Each time the inhaler is activated, one blister is opened, and the powder is inhaled into the patient through the delivery tube. This type of inhaler ensures better powder sealing. Its disadvantages include: 1. Poor repeatability: the amount of powder delivered to the patient may differ between inhalers; 2. Powder residue may remain inside the inhaler, causing contamination and potential harm to the user; 3. Powder residue inside the blister pack may prevent the powder from achieving its intended effect.

[0006] The third type is the single-dose powder inhaler. The powder is pre-stored individually in capsules distributed on a capsule plate. When using it, the patient first removes the capsule from the plate, then places it into the capsule chamber of the inhaler. Pressing button 3 punctures the capsule, and the powder is inhaled through the discharge tube. The disadvantages of this type of product are: 1. Poor reliability; for example: ① the puncturing component may detach from button 3 during puncture; ② button 3 may malfunction, rendering the inhaler unusable. 2. The inhaler cannot be thoroughly cleaned, easily leading to contamination. 3. It is not user-friendly or convenient to use; the assembly process is complex, the defect rate is high, and the manufacturing cost is high. Summary of the Invention

[0007] In view of this, the purpose of this invention is to propose a powder inhaler that avoids the aforementioned disadvantages, based on existing powder inhalers. This powder inhalation device punctures the capsule more thoroughly using a first, second, and third hollow needle. During use, the capsule chamber of this powder inhaler is connected to the first, second, and third hollow needles through an air inlet. Since the second and third hollow needles are not on the same axis, the air entering the capsule through the air inlet forms a spiral airflow under the suction force generated when the first hollow needle is inhaled. The capsule does not need to vibrate or rotate violently, allowing the patient to easily take the medication. The dust cover, mouthpiece, and capsule seat are hinged together, facilitating capsule disassembly while the dust cover effectively prevents external contamination of the mouthpiece, keeping the mouthpiece clean at all times.

[0008] A powder inhalation device includes: a dust cover 1, a nozzle 2, a button 3, a capsule compartment 4, a capsule seat 6, and a lower cover 8; the dust cover 1 is fitted onto the nozzle 2, the capsule compartment 4 is fitted below the nozzle 2, and the lower cover 8 is fitted below the capsule compartment 4; the button 3 is fitted onto the left and right sides of the capsule compartment 4; the capsule compartment 4 has a receiving portion 41 that is vertically connected at its center; the upper end of the capsule seat 6 has an elastic device 7, which is placed inside the receiving portion 41, and the lower end of the capsule seat 6 is placed inside a circular hole 81 opened at the center of the upper part of the lower cover 8; the dust cover 1 is sleeved on the nozzle 2, the capsule compartment 4 is sleeved below the nozzle 2, and the lower cover 8 is sleeved below the capsule compartment 4; the button 3 is sleeved on the left and right sides of the capsule compartment 4; the capsule compartment 4 has a receiving portion 41 that is vertically connected at its center; the upper end of the capsule seat 6 has an elastic device 7, which is placed inside the receiving portion 41, and the lower end of the capsule seat 6 is placed inside a circular hole 81 opened at the center of the upper part of the lower cover 8; the dust cover 1 is sleeved on the nozzle 2, the capsule seat 4 is sleeved on the nozzle 2, the capsule seat 4 is sleeved on the nozzle 2, and the lower cover 8 is sleeved on ... The dust cover 1, the nozzle 2, and the capsule seat 6 are hinged together. The nozzle 2 has an airflow channel 22; the airflow channel 22 consists of two parts, with the upper and lower parts of the airflow channel 22 fully covered with mesh holes 23; at least three auxiliary air inlets 24 are provided on the upper side of the airflow channel 22 above the mesh holes 23; the auxiliary air inlets 24 communicate with the receiving part 41; each of the two side walls of the nozzle 2 has a slanted guide post 25; the button 3 includes a left button 31 and a right button 32, the left button 31 and the right button 32... The upper end is provided with a beveled surface 33 that mates with the inclined guide post 25. The upper ends of the left button 31 and the right button 32 are also provided with air inlets. The inner wall of the left button 31 is provided with a second hollow needle 311, which communicates with the air inlet 35 on the left button 31. The inner wall of the right button 32 is provided with a third hollow needle 321, which communicates with the air inlet 35 on the right button 32. The second hollow needle 311 and the third hollow needle 321 are not on the same axis. Below the mouthpiece 2, there is a first hollow needle 26 that communicates with the airflow channel 22. The capsule is punctured by the first hollow needle 26, the second hollow needle 311, and the third hollow needle 321. Air enters through the air inlet 35 to the second hollow needle 311 and the third hollow needle 321. The airflow forms a spiral airflow around the outer wall of the first hollow needle 26 on the mouthpiece 2. After the spiral airflow reaches the bottom of the capsule chamber 4, it is blocked. The airflow moves upward and carries the powder in the capsule from the inner wall of the first hollow needle 26 to the mouthpiece 2 and out, and finally into the human body.

[0009] Furthermore, the nozzle 2 is a one-piece convex structure with a flat hollow cylinder at the protruding end and a flat plate at the flat end. Two auxiliary processing holes are opened on the left and right sides at the connection between the flat end and the protruding end. One end of the inclined guide post 25 is fixedly connected to the auxiliary processing hole, and the other end is inclined outward.

[0010] Furthermore, the airflow channel 22 connected to the lower part of the protruding end of the nozzle 2 has a funnel-shaped structure, which is wider at the top and narrower at the bottom, so that the powder is more evenly diffused when inhaled.

[0011] Furthermore, the auxiliary air inlet 24 can be set at any position on the outer wall of the nozzle 2 that communicates with the upper part of the internal airflow channel 22, and at least three auxiliary air inlets are evenly distributed.

[0012] Furthermore, the lower end of the outer wall of the suction nozzle 2 is provided with a first rod pivot hole 21, the lower end of the outer wall of the dust cover 1 is provided with two second rod pivot holes 11, the distance between the two second rod pivot holes 11 is the width of the first rod pivot hole 21, and the upper end of the outer wall of the capsule compartment 4 is provided with two third rod pivot holes 43, the distance between the two third rod pivot holes 43 is the same as the distance between the outer ends of the two second rod pivot holes 11. The first rod pivot hole 21, the second rod pivot hole 11 and the third rod pivot hole 43 are connected by a pivot 5, so that the dust cover 1, the suction nozzle 2 and the capsule compartment 4 can rotate coaxially around the pivot 5, which facilitates the installation and removal of capsules placed in the capsule compartment 4.

[0013] Furthermore, a first buckle 27 is provided on the lower front side of the outer wall of the nozzle 2, and a first slot 42 matching the first buckle 27 is provided on the upper side of the outer wall of the capsule chamber 4 near the upper end of the receiving part 41. When powder is to be sucked in, the first buckle 27 is engaged with the first slot 42, so that the nozzle 2 and the capsule chamber 4 are locked together and not easily moved.

[0014] Furthermore, a first groove 34 is provided on the upper outer wall of the button 3. A sloping surface 33 is provided inside the first groove 34 near the inner side of the button 3. One end of the sloping surface 33 is connected to the upper inner side of the button 3, and the other end is inclined towards the inner side of the button 3 and is a free end. When the suction nozzle 2 is closed, the sloping guide post 25 on the suction nozzle 2 will contact the sloping surface 33 on the button 3, and the button 3 will move inward after being subjected to force.

[0015] Furthermore, one end of the air inlet 35 on the left button 31 is connected to the atmosphere, and the other end is connected to the second hollow needle 311. One end of the air inlet 35 on the right button 32 is connected to the atmosphere, and the other end is connected to the third hollow needle 321. When the button 3 is pressed, the second hollow needle 311 and the third hollow needle 321 puncture the capsule. Since the second hollow needle 311 and the third hollow needle 321 are not on the same axis, the air entering through the air inlet 35 enters the capsule and forms a spiral airflow under the suction generated when the first hollow needle 26 is inhaled. The capsule does not need to vibrate or rotate, so that the patient can easily take the medicine.

[0016] Furthermore, a second groove 44 is provided on the upper ends of both sides of the capsule compartment 4. The second groove 44 is perfectly matched with the structure of the button 3. A through hole is provided on the inner wall of the second groove 44. When the button 3 is subjected to force, the second hollow needle 311 and the third hollow needle 321 pass through the through hole and puncture the capsule.

[0017] Furthermore, each second groove 44 has a second slot 45 on one side wall, and the button 3 is provided with a second hook 36 at the position of the second slot 45. The second slot 45 and the second hook 36 are engaged to prevent the button 3 from sliding out of the capsule compartment 4.

[0018] The beneficial effects of this invention are as follows: This invention provides a powder inhalation device that punctures the capsule more thoroughly using a first hollow needle 26, a second hollow needle 311, and a third hollow needle 321. During use, the capsule chamber 4 of this powder inhalation device is connected to the first hollow needle 26, the second hollow needle 311, and the third hollow needle 321 through an air inlet 35. Since the second hollow needle 311 and the third hollow needle 321 are not on the same axis, the air entering through the air inlet 35 forms a spiral airflow under the suction force generated when the first hollow needle 26 is inhaled. The capsule does not require violent vibration or rotation, allowing the patient to easily take the medication. The dust cover 1, the mouthpiece 2, and the capsule seat 6 are hinged together, facilitating capsule disassembly while the dust cover 1 effectively prevents external contamination of the mouthpiece 2, keeping the mouthpiece 2 clean at all times. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the powder inhalation device of the present invention.

[0020] Figure 2 This is a schematic diagram of the dust cover structure of the powder inhalation device of the present invention.

[0021] Figure 3 This is a schematic diagram of the nozzle structure of the present invention.

[0022] Figure 4 This is a top view structural diagram of the suction nozzle of the present invention.

[0023] Figure 5 This is a schematic diagram of the button structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the serrated needle of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the knife-shaped needle of the present invention.

[0026] Figure 8 This is a schematic diagram of the planar cylindrical needle of the present invention.

[0027] Figure 9 This is a schematic diagram of the internal structure of the powder inhalation device of the present invention.

[0028] Explanation of main component symbols

[0029]

[0030] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0031] like Figure 1The diagram shown is a structural schematic of the powder inhalation device of the present invention; as shown... Figure 2 The diagram shows a schematic of the dust cover structure of the powder inhalation device of the present invention. A powder inhalation device includes: a dust cover 1, a nozzle 2, a button 3, a capsule compartment 4, a capsule seat 6, and a lower cover 8; the dust cover 1 is sleeved on the nozzle 2, the capsule compartment 4 is sleeved below the nozzle 2, and the lower cover 8 is sleeved below the capsule compartment 4; the button 3 is sleeved on the left and right sides of the capsule compartment 4; the capsule compartment 4 has a receiving portion 41 with vertical communication at its center; the upper end of the capsule seat 6 has an elastic device 7, which is placed inside the receiving portion 41, and the lower end of the capsule seat 6 is placed inside a circular hole 81 opened at the center of the upper part of the ... dust cover 1 is sleeved on the nozzle 2, the capsule compartment 4 is sleeved below the nozzle 2, and the lower cover 8 is sleeved below the capsule compartment 4; the dust cover 1 is sleeved on the nozzle 2, the capsule compartment 4 is sleeved on the nozzle 2, the capsule compartment 4 is sleeved on the nozzle 4, the capsule seat 6 has an elastic device 7, which is placed inside the receiving portion 41, and the lower end The dust cover 1, the nozzle 2, and the capsule seat 6 are hinged together. The nozzle 2 has an airflow channel 22; the airflow channel 22 consists of two parts, with the upper and lower parts of the airflow channel 22 fully covered with mesh holes 23; at least three auxiliary air inlets 24 are provided on the upper side of the airflow channel 22 above the mesh holes 23; the auxiliary air inlets 24 communicate with the receiving part 41; each of the two side walls of the nozzle 2 has a slanted guide post 25; the button 3 includes a left button 31 and a right button 32, the left button 31 and the right button 32... The upper end is provided with a beveled surface 33 that mates with the inclined guide post 25. The upper ends of the left button 31 and the right button 32 are also provided with air inlets. The inner wall of the left button 31 is provided with a second hollow needle 311, which communicates with the air inlet 35 on the left button 31. The inner wall of the right button 32 is provided with a third hollow needle 321, which communicates with the air inlet 35 on the right button 32. The second hollow needle 311 and the third hollow needle 321 are not on the same axis. Below the mouthpiece 2, there is a first hollow needle 26 that communicates with the airflow channel 22. The capsule is punctured by the first hollow needle 26, the second hollow needle 311, and the third hollow needle 321. Air enters through the air inlet 35 to the second hollow needle 311 and the third hollow needle 321. The airflow forms a spiral airflow around the outer wall of the first hollow needle 26 on the mouthpiece 2. After the spiral airflow reaches the bottom of the capsule chamber 4, it is blocked. The airflow moves upward and carries the powder in the capsule from the inner wall of the first hollow needle 26 to the mouthpiece 2 and out, and finally into the human body.

[0032] There are two second rod pivot holes 11, the distance between the two second rod pivot holes 11 is the width of the first rod pivot hole 21. The upper end of the outer wall of the capsule chamber 4 is provided with two third rod pivot holes 43, the distance between the two third rod pivot holes 43 is the same as the distance between the outer ends of the two second rod pivot holes 11. The first rod pivot hole 21, the second rod pivot hole 11 and the third rod pivot hole 43 are connected by a pivot 5, so that the dust cover 1, the nozzle 2 and the capsule chamber 4 can rotate coaxially around the pivot 5, which facilitates the installation and removal of the capsule placed in the capsule chamber 4. The nozzle 2 is hinged to the dust cover 1, which effectively avoids external contamination of the nozzle 2 and keeps the nozzle 2 clean at all times.

[0033] The lower front side of the outer wall of the nozzle 2 is provided with a first buckle 27, and the upper end of the outer wall of the capsule chamber 4 is provided with a first slot 42 that matches the first buckle 27 near the upper end of the receiving part 41. When powder is to be sucked in, the first buckle 27 is inserted into the first slot 42, so that the nozzle 2 and the capsule chamber 4 are locked together and not easy to move.

[0034] like Figure 3 The diagram shown is a structural schematic of the suction nozzle of the present invention; as shown Figure 4 The diagram shown is a top view of the nozzle structure of the present invention.

[0035] The nozzle 2 is a one-piece convex structure. The protruding end is a flat hollow cylinder, and the flat end is a flat plate. Two auxiliary processing holes are opened on the left and right sides at the connection between the flat end and the protruding end. One end of the inclined guide post 25 is fixedly connected to the auxiliary processing hole, and the other end is inclined outward. The inclination angle of the inclined guide post 25 is the same as the inclination angle of the inclined surface 33.

[0036] The nozzle 2 is provided with an airflow channel 22; the airflow channel 22 is composed of two parts, the upper and lower parts of the airflow channel 22 are covered with mesh holes 23, and the airflow channel 22 connected to the lower part of the protruding end of the nozzle 2 has a funnel-shaped structure, which is wider at the top and narrower at the bottom, so that the powder is more evenly diffused when it is inhaled.

[0037] At least three auxiliary air inlets 24 are provided on the airflow channel 22 above the side of the mesh 23; the auxiliary air inlets 24 are connected to the receiving part 41; or the auxiliary air inlets 24 can be set at any position on the outer wall of the nozzle 2 that is connected to the upper part of the internal airflow channel 22, and at least three auxiliary air inlets are evenly distributed. The auxiliary air inlets 24 are used to control the mist shape and mist angle, so that the mist shape is straighter.

[0038] like Figure 5 The diagram shown is a structural schematic of the button of the present invention; as shown... Figure 6 The diagram shown is a structural schematic of the serrated needle of the present invention; as shown... Figure 7 The diagram shown is a schematic representation of the structure of the blade-shaped needle of the present invention; as shown... Figure 8 The diagram shown is a schematic representation of the planar cylindrical needle of the present invention.

[0039] like Figure 9 The diagram shows the internal structure of the powder inhalation device of the present invention. A first groove 34 is provided on the upper outer wall of the button 3. An inclined surface 33 is provided inside the first groove 34 near the inner side of the button 3. One end of the inclined surface 33 is connected to the upper inner side of the button 3, and the other end is inclined towards the inner side of the button 3 and is a free end. When the suction nozzle 2 is closed, the inclined guide post 25 on the suction nozzle 2 will contact the inclined surface 33 on the button 3, and the button 3 will move inward after being subjected to force.

[0040] An air inlet 35 is provided on the upper outer wall of button 3 near the first groove 34. A second hollow needle 311 is provided on the inner wall of the left button 31, and a third hollow needle 321 is provided on the inner wall of the right button 32. The second hollow needle 311 and the third hollow needle 321 are not on the same axis. One end of the air inlet 35 on the left button 31 is connected to the atmosphere, and the other end is connected to the second hollow needle 311. One end of the air inlet 35 on the right button 32 is connected to the atmosphere, and the other end is connected to the third hollow needle 321. When button 3 is subjected to force, the second hollow needle 311 and the third hollow needle 321 puncture the capsule. Since the second hollow needle 311 and the third hollow needle 321 are not on the same axis, the air entering through the air inlet 35 enters the capsule and forms a spiral airflow under the suction generated when the first hollow needle 321 is inhaled. The capsule does not need to vibrate or rotate, so that the patient can easily take the medicine.

[0041] The first hollow needle 26, the second hollow needle 311, and the third hollow needle 321 have the same shape, which are all serrated, knife-shaped, or flat cylindrical. The connection between the first hollow needle 26 and the suction nozzle 2, the second hollow needle 311 and the left button 31, and the third hollow needle 321 and the right button 32 can be integrally formed or assembled later. The assembly methods include interference fit, adhesive bonding, hot melting, and threaded connection. The powder enters the suction nozzle 2 through the inner hole of the first hollow needle 26 and finally enters the human body.

[0042] The upper ends of both sides of the capsule compartment 4 are provided with a second groove 44, which is perfectly matched with the structure of the button 3. The inner wall of the second groove 44 is provided with a through hole. When the button 3 is subjected to force, the second hollow needle 311 and the third hollow needle 321 pass through the through hole and puncture the capsule.

[0043] Each second groove 44 has a second slot 45 on one side wall. The button 3 is provided with a second hook 36 at the position of the second slot 45. The second slot 45 and the second hook 36 are engaged to prevent the button 3 from sliding out of the capsule compartment 4.

[0044] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A powder inhalation device, characterized by: The utility model provides a capsule inhaler, including button (3), capsule storehouse (4) and the mouthpiece (2) of sleeve joint on capsule storehouse (4), the first hollow needle (26) of communicating is equipped with below mouthpiece (2), capsule storehouse (4) is used for accommodating capsule, the outer wall lower end front side of mouthpiece (2) is equipped with first buckle (27), the outer wall upper end of capsule storehouse (4) is equipped with the first card slot (42) of matching first buckle (27), when needing to carry out powder inhalation, first buckle (27) is inserted into first card slot (42), so that mouthpiece (2) is stuck with capsule storehouse (4), The two side walls of the mouthpiece (2) are each provided with an inclined guide pillar (25); the button (3) is sleeved on the left and right sides of the capsule storehouse (4); the button (3) comprises a left side button (31) and a right side button (32), the upper ends of the left side button (31) and the right side button (32) are respectively provided with an inclined inverted surface (33) connected with the inclined guide pillar (25); a first recess (34) is formed in the upper end outer wall of the button (3), one inclined inverted surface (33) is arranged in the first recess (34) and close to the inner side of the button (3), one end of the inclined inverted surface (33) is connected to the upper end of the inner side of the button (3), and the other end is inclined to the inner side of the button (3) and is a free end; an air inlet hole (35) is formed in the upper end outer wall of the button (3) and close to the first recess (34), a second hollow needle (311) is arranged on the inner side wall of the left side button (31), and a third hollow needle (321) is arranged on the inner side wall of the right side button (32); one end of the air inlet hole (35) on the left side button (31) is communicated with the atmosphere, and the other end is communicated with the second hollow needle (311); one end of the air inlet hole (35) on the right side button (32) is communicated with the atmosphere, and the other end is communicated with the third hollow needle (321); the second hollow needle (311) and the third hollow needle (321) are not on the same axis; The capsule is pierced by the first hollow needle (26), the second hollow needle (311) and the third hollow needle (321), air is introduced into the second hollow needle (311) and the third hollow needle (321) through the air inlet hole (35), the airflow forms a spiral airflow around the outer wall of the first hollow needle (26) on the mouthpiece (2), the spiral airflow is blocked after reaching the bottom of the capsule storehouse (4), the upward movement of the airflow drives the powder in the capsule from the inner wall of the first hollow needle (26) to the mouthpiece (2) and is taken out, and finally enters the human body.

2. A powder inhalation device according to claim 1, characterised in that: The mouthpiece (2) is communicated with the first hollow needle (26) through an airflow channel (22).

3. A powder inhalation device according to claim 2, wherein: The airflow channel (22) is composed of two parts, and the upper and lower parts of the airflow channel (22) are full of mesh holes (23).

4. A powder inhaler device according to claim 3, wherein: The capsule storehouse (4) is provided with an accommodating portion (41) communicated with the upper and lower parts in the center, and the capsule is accommodated in the accommodating portion (41).

5. A powder inhaler device according to claim 4, wherein: Also include auxiliary air inlet hole (24), the auxiliary air inlet hole (24) and the airflow channel (22) and the accommodation part (41) are communicated; the auxiliary air inlet hole (24) is used for controlling mist shape mist angle, so that mist type is more straight.

6. A powder inhaler device according to claim 5, wherein: The auxiliary air inlet hole (24) is arranged on the airflow channel (22) above the mesh (23), or any position communicated on the upper portion of the airflow channel (22) and the suction nozzle (2).

7. A powder inhaler device according to claim 5, wherein: The auxiliary air inlet hole (24) is arranged at least three, and the auxiliary air inlet hole (24) is uniformly distributed.

8. The powder inhalation device of claim 2, wherein: The airflow channel (22) is a funnel structure, the funnel structure is wide at the top and narrow at the bottom, and the funnel structure is used to diffuse the powder more evenly when inhaling.

9. The powder inhaler device of claim 1, wherein: The first hollow needle (26), the second hollow needle (311) and the third hollow needle (321) are all hollow structures.

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