Powder suction device

Abstract

The invention provides a powder suction device which comprises a dustproof cover, a suction nozzle, a button, a capsule bin, a capsule base and a lower cover. The buttons comprise a left button and a right button, air inlet holes are formed in the upper ends of the left button and the right button, a second hollow pricking needle is arranged on the inner side wall of the left button and communicated with the air inlet hole in the left button, and a third hollow pricking needle is arranged on the inner side wall of the right button and communicated with the air inlet hole in the right button. The third hollow pricking needle is communicated with an air inlet hole in the right button; the second hollow pricking needle and the third hollow pricking needle are not located on the same axis, a first hollow pricking needle communicated with the airflow channel is further arranged below the suction nozzle, a capsule is pricked through the first hollow pricking needle, the second hollow pricking needle and the third hollow pricking needle, and air enters the capsule through the air inlet hole; airflow surrounds the outer wall of the first hollow pricking needle to form spiral airflow, reaches the bottom of the capsule bin and then is blocked, and the airflow moves upwards to drive powder in the capsule to finally enter the human body from the inner wall of the first hollow pricking needle.

Description

[0001] This application is a divisional application of Chinese patent application CN201911377180.4, filed on December 27, 2019, with the invention name “A Powder Inhalation Device”. Technical Field

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

[0003] In the field of powder inhaler technology, there are various types of powder inhalers. Existing powder inhalers can be divided into three categories: The first category: a reservoir-type powder inhaler, which has a reservoir inside that can store a certain dose of powder. The powder 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's body through an exhaust pipe. The disadvantages of this type of powder inhaler: 1. The amount of powder delivered each time is unstable; 2. The sealing of this type of powder inhaler is poor, so the powder is easily affected by moisture in a relatively humid environment, affecting the expected effect; 3. During the separation of powder in the reservoir, some powder will remain inside the powder inhaler, which will cause pollution to the powder inhaler and cause certain harm to the user; The second category: multi-dose powder inhaler, the powder is independently stored in the blisters on the blister belt in advance, the blisters are evenly distributed on the blister belt, and the blister belt is installed on the rotating disk inside the powder inhaler; each time the powder inhaler is braked, a blister is opened, and the powder is inhaled into the patient through the discharge tube. This type of powder inhaler better ensures the sealing of the powder; its disadvantages: 1. Poor repeatability, there are differences in the delivery of the same powder inhaler to the patient before and after; 2. There will be residual powder inside the powder inhaler, which will cause pollution to the powder inhaler and cause certain harm to the user; 3. There will be powder residue in the blister, causing the performance of the powder to not achieve the expected effect; The third category: single-dose powder inhaler, the powder is stored in a single capsule in advance, and the capsule is distributed on the capsule plate. When using, the patient first takes out the capsule from the capsule plate, and then puts the taken capsule into the capsule chamber of the powder inhaler. Press button 3 to puncture the capsule, and the powder is inhaled into the patient's body through the discharge tube. The shortcomings of existing products of this type: 1. The reliability of existing powder inhalers is poor; for example: ① During the puncture process, the puncture component and the button 3 component are separated; ② Button 3 cannot be pressed normally, which will make the powder inhaler unable to be used normally; 2. The powder inhaler cannot be fully cleaned and is easy to cause pollution; 3. The use is not humane and convenient; the assembly process is complicated, the defect rate is high, and the manufacturing cost is high. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a powder inhaler that does not have the above-mentioned disadvantages on the basis of the existing powder inhaler. The powder inhaler punctures the capsule through the first hollow puncture needle, the second hollow puncture needle and the third hollow puncture needle, so that the capsule is punctured more thoroughly; when in use, the capsule compartment of the powder inhaler is connected with the first hollow puncture needle, the second hollow puncture needle and the third hollow puncture needle through the air inlet hole. Since the second hollow puncture needle and the third hollow puncture needle are not on the same axis, the air entering through the air inlet hole enters the capsule and forms a spiral airflow under the suction force generated by the first hollow puncture needle when the person inhales. The capsule does not need to vibrate or rotate violently, so that the patient can take the medicine easily. The dust cover, the suction nozzle and the capsule seat are hinged, which facilitates the removal of the capsule. At the same time, the dust cover effectively avoids the pollution of the suction nozzle by the outside world, so that the suction nozzle is always kept clean.

[0005] A powder inhalation device, comprising: a dust cover 1, a suction nozzle 2, a button 3, a capsule bin 4, a capsule seat 6 and a lower cover 8; the dust cover 1 is sleeved on the suction nozzle 2, the capsule bin 4 is sleeved below the suction nozzle 2, and the lower cover 8 is sleeved below the capsule bin 4; the button 3 is sleeved on the left and right sides of the capsule bin 4; a receiving portion 41 communicating with each other from top to bottom is provided in the center of the capsule bin 4; an elastic device 7 is provided at the upper end of the capsule seat 6, the elastic device 7 is placed in the receiving portion 41, and the lower end of the capsule seat 6 is placed in a circular hole 81 opened in the center of the upper part of the ... The dust cover 1, the suction nozzle 2 and the capsule seat 6 are hinged, and are characterized in that: an air flow channel 22 is provided in the suction nozzle 2; the air flow channel 22 is composed of two parts, and the upper and lower parts of the air flow channel 22 are connected by meshes 23; at least three auxiliary air inlet holes 24 are provided on the air flow channel 22 above the side of the meshes 23; the auxiliary air inlet holes 24 are communicated with the receiving portion 41; an inclined guide column 25 is provided on each side wall of the suction nozzle 2; the button 3 includes: a left button 31 and a right button 32, and the left button 31 and the right button 32 The upper ends are respectively provided with inclined surfaces 33 that are connected to the inclined guide pillars 25. The upper ends of the left button 31 and the right button 32 are also provided with air inlet holes. The inner side wall of the left button 31 is provided with a second hollow needle 311, and the second hollow needle 311 is connected to the air inlet 35 on the left button 31. The inner side wall of the right button 32 is provided with a third hollow needle 321, and the third hollow needle 321 is connected to 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, and the suction A first hollow needle 26 communicating with the air flow channel 22 is also provided below the mouthpiece 2. The capsule is pierced by the first hollow needle 26, the second hollow needle 311 and the third hollow needle 321, and 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 suction nozzle 2. The spiral airflow is blocked after reaching the bottom of the capsule compartment 4. The airflow moves upward, driving the powder in the capsule from the inner wall of the first hollow needle 26 to the suction nozzle 2 and finally enters the human body.

[0006] Furthermore, the suction nozzle 2 is an integrally formed convex structure, the protruding end is a flat hollow cylinder, the plane end is a flat plate, two auxiliary processing holes are opened on the left and right sides of the connection between the plane end and the protruding end, one end of the inclined guide column 25 is fixedly connected to the auxiliary processing hole, and the other end is inclined outward.

[0007] Furthermore, the air flow channel 22 communicating with the lower part of the protruding end of the suction nozzle 2 is a funnel-shaped structure, which is wide at the top and narrow at the bottom, so that the powder can be spread more evenly during inhalation.

[0008] Furthermore, the auxiliary air inlet holes 24 can be arranged at any position where the outer wall of the suction nozzle 2 communicates with the upper part of the internal air flow channel 22, and at least three auxiliary air inlet holes are evenly distributed.

[0009] Furthermore, a first rod shaft hole 21 is provided at the center of the lower end portion of the outer wall of the suction nozzle 2, two second rod shaft holes 11 are provided at the lower end portion of the outer wall of the dust cover 1, and the distance between the two second rod shaft holes 11 is the width of the first rod shaft hole 21; two third rod shaft holes 43 are provided at the upper end portion of the outer wall of the capsule bin 4, and the distance between the two third rod shaft holes 43 is the same as the distance between the outer ends of the two second rod shaft holes 11; the first rod shaft hole 21, the second rod shaft hole 11 and the third rod shaft hole 43 are connected by the shaft 5, so that the dust cover 1, the suction nozzle 2 and the capsule bin 4 can rotate coaxially around the shaft 5, which is convenient for disassembly and assembly of capsules placed in the capsule bin 4.

[0010] Furthermore, a first clip 27 is provided on the front side of the lower end of the outer wall of the suction nozzle 2, and a first slot 42 matching the first clip 27 is provided on the upper end of the outer wall of the capsule chamber 4 near the upper end of the receiving portion 41. When powder inhalation is required, the first clip 27 is inserted into the first slot 42, so that the suction nozzle 2 and the capsule chamber 4 are stuck and are not easy to move.

[0011] Furthermore, a first groove 34 is provided on the outer wall of the upper end of the button 3, and 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 end of the inner side of the button 3, and the other end is inclined toward the inner side of the button 3 and is a free end. When the suction nozzle 2 is closed, the inclined guide column 25 on the suction nozzle 2 will contact the inclined surface 33 on the button 3, and the button 3 moves inward after being subjected to force.

[0012] 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. After the button 3 is subjected to force, the second hollow needle 311 and the third hollow needle 321 pierce 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 action of the suction force generated by the first hollow needle 26 when a person inhales. The capsule does not need to be violently vibrated or rotated, so that the patient can take the medicine easily.

[0013] Furthermore, second grooves 44 are provided at the upper ends of both sides of the capsule compartment 4, and the second grooves 44 completely match 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 puncture needle 311 and the third hollow puncture needle 321 pass through the through hole to puncture the capsule.

[0014] Furthermore, a second slot 45 is provided on one side wall of each second groove 44 , and a second hook 36 is provided at the position of the button 3 to match the second slot 45 , and the second slot 45 and the second hook 36 are engaged to prevent the button 3 from sliding out of the capsule compartment 4 .

[0015] Beneficial effects of the present invention: The present invention provides a powder inhalation device, which punctures the capsule through the first hollow puncture needle 26, the second hollow puncture needle 311 and the third hollow puncture needle 321, so that the capsule is punctured more thoroughly; when in use, the capsule compartment 4 of the powder inhalation device is connected with the first hollow puncture needle 26, the second hollow puncture needle 311 and the third hollow puncture needle 321 through the air inlet hole 35. Since the second hollow puncture needle 311 and the third hollow puncture needle 321 are not on the same axis, the air entering through the air inlet hole 35 enters the capsule and forms a spiral airflow under the suction force generated by the first hollow puncture needle 26 when inhaled. The capsule does not need to be violently vibrated or rotated, so that the patient can take the medicine easily. The dust cover 1, the suction nozzle 2 and the capsule seat 6 are hinged, which facilitates the removal of the capsule. At the same time, the dust cover 1 effectively avoids the pollution of the suction nozzle 2 by the outside world, so that the suction nozzle 2 is always kept clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the powder inhalation device of the present invention.

[0017] Figure 2 The figure is a schematic diagram of the dust cover structure of the powder inhalation device of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the suction nozzle of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of a top view of the suction nozzle of the present invention.

[0020] Figure 5 It is a structural schematic diagram of a button of the present invention.

[0021] Figure 6 It is a schematic structural diagram of the sawtooth needle of the present invention.

[0022] Figure 7 It is a schematic structural diagram of the knife-shaped needle of the present invention.

[0023] Figure 8 It is a schematic structural diagram of the planar cylindrical needle of the present invention.

[0024] Fig. 9 Schematic diagram of the internal structure of the powder inhalation device of the present invention.

[0025] Main component symbols The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0026] like Figure 1 As shown, it is a schematic diagram of the structure of the powder inhalation device of the present invention; Figure 2 The figure is a schematic diagram of the dust cover structure of the powder inhalation device of the present invention. A powder inhalation device comprises: a dust cover 1, a suction nozzle 2, a button 3, a capsule bin 4, a capsule seat 6 and a lower cover 8; the dust cover 1 is sleeved on the suction nozzle 2, the capsule bin 4 is sleeved below the suction nozzle 2, and the lower cover 8 is sleeved below the capsule bin 4; the button 3 is sleeved on the left and right sides of the capsule bin 4; a receiving portion 41 communicating with each other from top to bottom is provided in the center of the capsule bin 4; an elastic device 7 is provided at the upper end of the capsule seat 6, and the elastic device 7 is placed in the receiving portion 41, and the lower end of the capsule seat 6 is placed in a circular hole 81 opened in the center of the upper part of the ... The dust cover 1, the suction nozzle 2 and the capsule seat 6 are hinged, and are characterized in that: an air flow channel 22 is provided in the suction nozzle 2; the air flow channel 22 is composed of two parts, and the upper and lower parts of the air flow channel 22 are connected by meshes 23; at least three auxiliary air inlet holes 24 are provided on the air flow channel 22 above the side of the meshes 23; the auxiliary air inlet holes 24 are communicated with the receiving portion 41; an inclined guide column 25 is provided on each side wall of the suction nozzle 2; the button 3 includes: a left button 31 and a right button 32, and the left button 31 and the right button 32 The upper ends are respectively provided with inclined surfaces 33 that are connected to the inclined guide pillars 25. The upper ends of the left button 31 and the right button 32 are also provided with air inlet holes. The inner side wall of the left button 31 is provided with a second hollow needle 311, and the second hollow needle 311 is connected to the air inlet 35 on the left button 31. The inner side wall of the right button 32 is provided with a third hollow needle 321, and the third hollow needle 321 is connected to 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, and the suction A first hollow needle 26 communicating with the air flow channel 22 is also provided below the mouthpiece 2. The capsule is pierced by the first hollow needle 26, the second hollow needle 311 and the third hollow needle 321, and 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 suction nozzle 2. The spiral airflow is blocked after reaching the bottom of the capsule compartment 4. The airflow moves upward, driving the powder in the capsule from the inner wall of the first hollow needle 26 to the suction nozzle 2 and finally enters the human body.

[0027] There are two second rod rotation shaft holes 11, and the distance between the two second rod rotation shaft holes 11 is the width of the first rod rotation shaft hole 21. Two third rod rotation shaft holes 43 are provided at the upper end of the outer wall of the capsule bin 4. The distance between the two third rod rotation shaft holes 43 is the same as the distance between the outer ends of the two second rod rotation shaft holes 11. The first rod rotation shaft hole 21, the second rod rotation shaft hole 11 and the third rod rotation shaft hole 43 are connected through the rotating shaft 5, so that the dust cover 1, the suction nozzle 2 and the capsule bin 4 can rotate coaxially around the rotating shaft 5, which is convenient for disassembly and assembly of the capsule placed in the capsule bin 4. It is hinged with the dust cover 1, which effectively avoids external pollution to the suction nozzle 2, so that the suction nozzle 2 is always kept clean.

[0028] A first clip 27 is provided on the front side of the lower end of the outer wall of the suction nozzle 2, and a first slot 42 matching the first clip 27 is provided at the upper end of the outer wall of the capsule chamber 4 near the upper end of the receiving portion 41. When powder inhalation is required, the first clip 27 is inserted into the first slot 42, so that the suction nozzle 2 and the capsule chamber 4 are stuck and are not easy to move.

[0029] like Figure 3 As shown, it is a schematic diagram of the structure of the suction nozzle of the present invention; Figure 4 , which is a schematic diagram of the top view structure of the suction nozzle of the present invention.

[0030] The suction nozzle 2 is an integrally formed convex structure, the protruding end is a flat hollow cylinder, the plane end is a flat plate, two auxiliary processing holes are opened on the left and right sides of the connection between the plane end and the protruding end, one end of the inclined guide column 25 is fixedly connected to the auxiliary processing hole, and the other end is inclined outward, and the inclination angle of the inclined guide column 25 is the same as the inclination angle of the inclined surface 33.

[0031] An air flow channel 22 is provided in the suction nozzle 2; the air flow channel 22 consists of two parts, and the connection between the upper and lower parts of the air flow channel 22 is covered with mesh holes 23. The air flow channel 22 connected to the lower part of the protruding end of the suction nozzle 2 is a funnel-shaped structure, which is wide at the top and narrow at the bottom, so that the powder can be diffused more evenly during inhalation.

[0032] At least three auxiliary air inlet holes 24 are provided on the upper side air flow channel 22 of the mesh 23; the auxiliary air inlet holes 24 are communicated with the accommodating portion 41; or the auxiliary air inlet holes 24 can be set at any position where the outer wall of the suction nozzle 2 is communicated with the upper part of the internal air flow channel 22, and at least three auxiliary air inlet holes are evenly distributed, and the auxiliary air inlet holes 24 are used to control the fog shape and angle to make the fog shape more straight.

[0033] like Figure 5 As shown, it is a schematic diagram of the structure of the button of the present invention; Figure 6 As shown, it is a schematic diagram of the structure of the sawtooth needle of the present invention; Figure 7 As shown, it is a schematic diagram of the structure of the knife-shaped needle of the present invention; Figure 8 , which is a schematic structural diagram of a planar cylindrical needle of the present invention; like Fig. 9 The figure is a schematic diagram of the internal structure of the powder inhalation device of the present invention. A first groove 34 is provided on the outer wall of the upper end of the button 3, and 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 end of the inner side of the button 3, and the other end is inclined toward the inner side of the button 3 and is a free end. When the suction nozzle 2 is closed, the inclined guide column 25 on the suction nozzle 2 will contact the inclined surface 33 on the button 3, and the button 3 moves inward after receiving force.

[0034] An air inlet 35 is provided on the outer wall of the upper end of the 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, and 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 subjected to force, the second hollow needle 311 and the third hollow needle 321 pierce 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 force generated by the first hollow needle 26 when the person inhales. The capsule does not need to be violently vibrated or rotated, so that the patient can take the medicine easily.

[0035] The first hollow needle 26, the second hollow needle 311 and the third hollow needle 321 have the same shape, which are all sawtooth, 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 together later. The assembly methods include: interference fit, gluing, 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.

[0036] The upper ends of both sides of the capsule compartment 4 are provided with second grooves 44, which completely match the structure of the button 3. The inner wall of the second groove 44 is provided with through holes. When the button 3 is subjected to force, the second hollow puncture needle 311 and the third hollow puncture needle 321 pass through the through holes to puncture the capsule.

[0037] A second latching slot 45 is disposed on one side wall of each second groove 44 , and a second latching hook 36 is disposed at a position of the button 3 that matches the second latching slot 45 . The second latching slot 45 and the second latching hook 36 are engaged with each other to prevent the button 3 from sliding out of the capsule compartment 4 .

[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. 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 present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A powder inhalation device, characterized in that: The invention comprises a capsule bin (4) and a suction nozzle (2) sleeved on the capsule bin (4), wherein a first hollow puncture needle (26) is provided below the suction nozzle (2), and the capsule bin (4) is used to receive capsules, and the capsule bin (4) is connected to an air inlet (35); air flows into the capsule bin (4) through the air inlet (35), and the air flows around the outer wall of the first hollow puncture needle (26) to form a spiral airflow, and the spiral airflow is blocked after reaching the bottom of the capsule bin (4), and the spiral airflow moves upward, driving the powder in the punctured capsule to be taken out from the inner wall of the first hollow puncture needle (26) to the suction nozzle (2), and finally enters the human body.

2. The powder inhalation device according to claim 1, characterized in that: The suction nozzle (2) is connected to the first hollow puncture needle (26) via an air flow channel (22).

3. The powder inhalation device according to claim 2, characterized in that: The airflow channel (22) consists of an upper and lower part, and the connection between the upper and lower parts of the airflow channel (22) is covered with mesh holes (23).

4. The powder inhalation device according to claim 2, characterized in that: A receiving portion (41) communicating with each other from top to bottom is provided at the center of the capsule compartment (4), and the capsule is received in the receiving portion (41).

5. The powder inhalation device according to claim 4, characterized in that: It also comprises an auxiliary air inlet hole (24), the auxiliary air inlet hole (24) being in communication with the air flow channel (22) and the receiving portion (41); the auxiliary air inlet hole (24) is used to control the fog shape and fog angle, so that the fog shape is more straight.

6. The powder inhalation device according to claim 5, characterized in that: The auxiliary air inlet hole (24) is provided on the air flow channel (22) above the mesh hole (23), or is provided at any position on the suction nozzle (2) that is in communication with the upper part of the air flow channel (22).

7. The powder inhalation device according to claim 5, characterized in that: At least three auxiliary air inlet holes (24) are provided, and the auxiliary air inlet holes (24) are evenly distributed.

8. The powder inhalation device according to claim 2, characterized in that: The air flow channel (22) is a funnel-shaped structure, which is wide at the top and narrow at the bottom. The funnel-shaped structure is used to make the powder spread more evenly during inhalation.

9. The powder inhalation device according to claim 1, characterized in that: The two sides of the capsule compartment (4) are respectively connected to a second hollow puncture needle (311) and a third hollow puncture needle (321); the second hollow puncture needle (311) and the third hollow puncture needle (321) are both connected to the air inlet (35); the second hollow puncture needle (311) and the third hollow puncture needle (321) are not on the same axis.

10. The powder inhalation device according to claim 9, characterized in that: The first hollow needle (26), the second hollow needle (311) and the third hollow needle (321) are all hollow structures.

Images