Automatic shaking type air suction driving quantitative inhaler

Abstract

The invention discloses an automatic shaking type air suction driving quantitative inhaler. Comprising a shell, an electric pressing mechanism arranged in the shell, a tank body connected with the electric pressing mechanism, a reset mechanism arranged at the bottom in the shell, a reciprocating motion mechanism connected with the reset mechanism, a suction nozzle connected with the tank body, a suction nozzle cover arranged on the suction nozzle and an OLED display screen arranged on the shell, and the reciprocating motion mechanism is connected with the tank body. An air flow sensor is arranged at the bottom of the tank body and located on one side of the suction nozzle, a self-reset button is arranged on one side of the reciprocating mechanism and connected with the OLED display screen, the reset mechanism is installed at the bottom of the shell, and the electric pressing mechanism, the reciprocating mechanism, the air flow sensor and the OLED display screen are connected with the control module. The invention has the beneficial effects that the administration efficiency is improved, and the treatment effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of inhalers, in particular to an automatic shaking inhalation driven quantitative inhaler. Background Art

[0002] With the development of industrialization and the increase in the number of smokers, the number of asthma cases in China has doubled in the past decade to 65 million, and the number of patients with chronic obstructive pulmonary disease has exceeded 100 million. More and more people in China need to relieve their condition through inhalation. The most widely used inhalation drug delivery device on the market is the metered-dose inhaler. Generally, metered-dose inhalers need to be shaken to ensure uniform delivery of doses. However, patients do not shake or shake inadequately when using them, resulting in large differences in the delivery dose of a single-press drug, which will affect the treatment effect in the long run. At the same time, metered-dose inhalers Most of the inhalers are manually pressed, and patients have difficulty in inhalation-drive synergy, which results in fewer drug particles reaching the lungs, affecting the actual treatment effect. In order to achieve inhalation-drive synergy, breath-actuated metered-dose inhalers have been extensively studied, but such inhalers often require a large inhalation flow rate to be triggered. At the same time, such devices require a vacuum chamber to balance the spring force, so the sealing of the vacuum chamber determines the vacuum chamber effect. When the mouthpiece cover is opened for a period of time, there is a possibility of accidental actuation. Therefore, various metered-dose inhalers on the market have insufficient functions and are difficult to meet the growing needs of patients;

[0003] In view of the above situation, it is necessary to improve the existing inhaler so that it can adapt to the needs of the current use of the inhaler. Summary of the invention

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is an automatic shaking inhalation-driven metered-dose inhaler, comprising a shell, an electric pressing mechanism arranged in the shell, a tank body connected to the electric pressing mechanism, a reset mechanism arranged at the bottom of the shell, a reciprocating mechanism connected to the reset mechanism, a nozzle connected to the tank body, a nozzle cover arranged on the nozzle, and an OLED display screen arranged on the shell, the reciprocating structure is connected to the tank body, an airflow sensor is located at the bottom of the tank body and on one side of the nozzle, a self-reset button is provided on one side of the reciprocating mechanism, the self-reset button is connected to the OLED display screen, the reset mechanism is installed at the bottom of the shell, and the electric pressing mechanism, the reciprocating mechanism, the airflow sensor, and the OLED display screen are connected to a control module.

[0005] To further supplement the present technical solution, the electric pressing mechanism includes an electromagnet push rod, a pressing column arranged on one side of the electromagnet push rod, a return spring connected to the electromagnet push rod, an electromagnet body connected to the other end of the return spring, and a pressing end cover arranged below the electromagnet body; the pressing column is fixedly connected to the electromagnet push rod, the pressing end cover is fixedly connected to the electromagnet push rod, the electromagnet push rod passes through the electromagnet body and is connected to the tank body, and when the electromagnet loses power, the electromagnet push rod is reset under the action of the return spring and the built-in spring of the tank body.

[0006] As a further supplement to the present technical solution, the OLED display screen is located in the outer shell. Each time the pressing column presses the self-reset button, the number of remaining presses on the medicine can on the OLED display screen is reduced by one. After each startup and driving the motor for a preset time, the word "Ready" is displayed on the OLED display screen, and the device is in a state to be triggered.

[0007] As a further supplement to the present technical solution, the reciprocating motion mechanism includes a driving motor, a multi-stage gear box arranged on the driving motor, a rotating shaft base arranged on the multi-stage gear box, a rotating shaft housing arranged below the rotating shaft base, a reciprocating motion part arranged below the rotating shaft housing, a rotating shaft arranged on the rotating shaft base, the rotating shaft housing, and the reciprocating motion part, a ball arranged on the reciprocating motion part and mounted on the rotating shaft, and a multi-stage gear box cover arranged on the multi-stage gear box; the driving motor is connected to the reset mechanism, the multi-stage gear box is composed of a plurality of meshing gears, the reciprocating motion part is tightly connected to the tank body, a slide groove is provided on the rotating shaft, the rotating shaft is connected to the driving motor, and the reciprocating motion part is provided with a nozzle of a metered dose inhaler.

[0008] As a further supplement to the technical solution, the multi-stage gearbox has four stages of reduction gears, and the total reduction ratio of the gears is 1:16.

[0009] As a further supplement to the technical solution, the reciprocating mechanism is fixed to the housing via a fixing component.

[0010] To further supplement the technical solution, an electromagnet top cover is provided on the shell above the electromagnet body, an electromagnet bottom cover is provided inside the shell below the electromagnet top cover, and the electromagnet body is arranged between the electromagnet top cover and the electromagnet bottom cover.

[0011] A working method of an automatic shaking inhalation driven metered dose inhaler comprises the following steps:

[0012] Step S1, driving the motor to run at a preset frequency and duration to achieve uniform distribution of the medicine in the tank;

[0013] Step S2, after the motor has finished running, the OLED display screen displays the word "Ready";

[0014] Step S3, the airflow sensor detects the inhalation airflow;

[0015] Step S4: When the airflow passes through, the electric pressing mechanism is driven downward, thereby driving the metered dose inhaler to release the drug and the self-reset button is pressed, and during the patient's inhalation cycle, the electric pressing mechanism remains in a pressed state;

[0016] Step S5, when the patient finishes inhaling, the reset spring pushes the electric pressing mechanism to reset, and at the same time the number of remaining presses on the medicine bottle on the OLED display screen decreases by one.

[0017] Further supplementing the technical solution, in step S1, the method of driving the motor to run at a preset frequency and duration includes: adjusting the PWM waveform by the control module to set the duration to a preset value, and controlling the voltage output by the voltage regulating module to achieve a preset frequency. The preset shaking frequency is 3.8 times / s, and the preset shaking duration is 7s.

[0018] As a further supplement to the technical solution, the control module adopts an STM32 series processor.

[0019] The beneficial effect lies in that the automatic shaking inhalation-driven metered-dose inhaler of the present invention will drive the tank body to automatically shake according to the preset shaking frequency and shaking time verified by the experiment, so as to achieve uniform drug delivery dosage per press, and at the same time, the electric pressing mechanism is controlled by the control module, so that the patient can achieve inhalation-drive synergy at a lower inhalation flow rate, so that more drugs can enter the lungs, the drug administration efficiency is improved, and the treatment effect is improved; at the same time, the OLED display screen makes the remaining press number of the medicine tank visible, avoiding the waste of drugs still in the tank and discarding them, and the dangerous situation that there is no drug in the tank but the patient is still using it without knowing it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a left and right isometric section stereoscopic view of a preferred embodiment of the present invention;

[0021] Figure 2 It is a sectional three-dimensional front view of a preferred embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the reciprocating motion mechanism of the illustrated embodiment;

[0023] Figure 4 is an exploded view of the reciprocating motion mechanism of the illustrated embodiment;

[0024] Figure 5 is a schematic diagram of a multi-stage gear transmission of the illustrated embodiment;

[0025] Figure 6 is a schematic diagram of the reciprocating motion portion of the illustrated embodiment;

[0026] Figure 7 is a control principle diagram of the illustrated embodiment;

[0027] Figure 8 The working flow diagram of the embodiment shown;

[0028] Fig. 9 is a graph showing the experimental results of the shaking frequency and the uniformity of the drug delivery dose in the embodiment shown;

[0029] Fig.10 is a graph showing the experimental results of the shaking time and the uniformity of the drug delivery dose in the embodiment shown;

[0030] In the figure, 1. electromagnet top cover; 2. self-reset button; 3. electromagnet bottom cover; 4. electric pressing mechanism; 5. shell; 6. OLED display screen; 7. tank body; 8. suction nozzle; 9. suction nozzle cover; 10. reciprocating motion mechanism; 11. fixing part; 12. air flow sensor; 13. reset mechanism; 41. electromagnet push rod; 42. pressing column; 43. reset spring; 44. electromagnet body; 45. pressing end cover; 101. driving motor; 102. multi-stage gear box; 103. rotating shaft base; 104. rotating shaft shell; 105. reciprocating motion part; 106. rotating shaft; 107. ball; 108. multi-stage gear box cover; 109. gear. DETAILED DESCRIPTION

[0031] In order to make the technical solution more clear to those skilled in the art, Figure 1 -10 The technical solution of the present invention is described in detail:

[0032] An automatic shaking inhalation driven metered dose inhaler comprises a shell 5, an electric pressing mechanism 4 arranged in the shell 5, a tank body 7 connected to the electric pressing mechanism 4, a reset mechanism 13 arranged at the bottom of the shell 5, a reciprocating mechanism 10 connected to the reset mechanism 13, a suction nozzle 8 connected to the tank body 7, a suction nozzle 8 cover arranged on the suction nozzle 8, and an OLED display screen 6 arranged on the shell 5, wherein the reciprocating structure is connected to the tank body 7, an airflow sensor 12 is arranged at the bottom of the tank body 7 and located on one side of the suction nozzle 8, a self-reset button 2 is arranged on one side of the reciprocating mechanism 10, the self-reset button 2 is connected to the OLED display screen 6, the reset mechanism 13 is installed at the bottom of the shell 5, and the electric pressing mechanism 4, the reciprocating mechanism 10, the airflow sensor 12, and the OLED display screen 6 are connected to a control module.

[0033] Among them, the electric pressing mechanism 4 includes an electromagnet push rod 41, a pressing column 42 arranged on one side of the electromagnet push rod 41, a reset spring 43 connected to the electromagnet push rod 41, an electromagnet body 44 connected to the other end of the reset spring 43, and a pressing end cover 45 arranged below the electromagnet body 44; the pressing column 42 is fixedly connected to the electromagnet push rod 41, and when the electromagnet push rod 41 drives the metered dose inhaler, the pressing column 42 will also press the self-reset button 2; the pressing end cover 45 is fixedly connected to the electromagnet push rod 41, and the electromagnet push rod 41 penetrates the electromagnet body 44 and is connected to the tank body 7. When the electromagnet loses power, the electromagnet push rod 41 is reset under the action of the reset spring 43 and the built-in spring of the tank body 7.

[0034] Among them, the OLED display screen 6 is located in the housing 5. Every time the pressing column 42 presses the self-reset button 2, the number of remaining presses of the medicine bottle on the OLED display screen 6 is reduced by one; when the drive motor 101 runs for a preset time each time, the word "Ready" is displayed on the OLED display screen 6, and the device is in a state of waiting to be triggered.

[0035] The reciprocating mechanism 10 includes a driving motor 101, a multi-stage gear box 102 arranged on the driving motor 101, a rotating shaft base 103 arranged on the multi-stage gear box 102, a rotating shaft housing 104 arranged below the rotating shaft base 103, a reciprocating portion 105 arranged below the rotating shaft housing 104, a rotating shaft 106 arranged in the rotating shaft base 103, the rotating shaft housing 104, and the reciprocating portion 105, a ball 107 arranged on the reciprocating portion 105 and mounted on the rotating shaft 106, and a multi-stage gear box cover 108 arranged on the multi-stage gear box 102; the driving motor 101 is connected to the reset mechanism 13, the multi-stage gear box 102 is composed of a plurality of meshing gears 109, the reciprocating portion 105 is tightly connected to the tank body 7, a slide groove is provided on the rotating shaft 106, the rotating shaft 106 is connected to the driving motor 101, and the reciprocating portion 105 is provided with a nozzle of a metered dose inhaler; The reset mechanism 13 is used to drive the reciprocating mechanism 10 to return to the initial position by tightening the thread when the motor 101 stops, so as to prepare for the electric pressing mechanism 4 to drive the metered dose inhaler; wherein, there are four-stage reduction gears 109 in the multi-stage gear box 102, and the total reduction ratio of the gear 109 is 1:16. The multi-stage gear 109 reduces the shaking frequency and increases the torque; when the driving motor rotates, the motor main shaft drives the rotating shaft 106 to rotate through the multi-stage gear 109 transmission, and the rotating shaft 106 and the ball 107 on the reciprocating part 105 will roll along the slide groove on the rotating shaft 106, thereby driving the reciprocating part 105 to perform linear reciprocating motion, and then driving the tank body 7 to perform linear reciprocating motion, so as to realize automatic shaking; the reciprocating part 105 has a nozzle of a metered dose inhaler, which can atomize and release the drug; the shaking frequency and shaking duration of the reciprocating mechanism 10 are preset values, which are obtained through a large number of experimental verifications.

[0036] The reciprocating mechanism 10 is fixed to the housing 5 via a fixing component 11 .

[0037] An electromagnet top cover 1 is provided on the shell 5 above the electromagnet main body 44 , an electromagnet bottom cover 3 is provided in the shell 5 below the electromagnet top cover 1 , and the electromagnet main body 44 is arranged between the electromagnet top cover 1 and the electromagnet bottom cover 3 .

[0038] A working method of an automatic shaking inhalation driven metered dose inhaler comprises the following steps:

[0039] Step S1, driving the motor 101 to run at a preset frequency and duration to achieve uniform distribution of the medicine in the tank;

[0040] Step S2, after the motor has finished running, the OLED display screen 6 displays the word "Ready";

[0041] Step S3, the airflow sensor 12 detects the inhaled airflow;

[0042] Step S4: When the airflow passes through, the electric pressing mechanism 4 is driven downward, thereby driving the metered dose inhaler to release the drug and the self-reset button 2 is pressed, and during the patient's inhalation cycle, the electric pressing mechanism 4 remains in a pressed state;

[0043] Step S5, when the patient finishes inhaling, the reset spring 43 pushes the electric pressing mechanism 4 to reset, and at the same time, the number of remaining presses on the medicine bottle on the OLED display screen 6 decreases by one.

[0044] Among them, in step S1, the method of driving the motor 101 to run at a preset frequency and duration includes: adjusting the PWM waveform through the control module to set the duration to the preset value, and controlling the voltage output through the voltage regulating module to achieve the frequency to the preset value. The preset value of the shaking frequency is 3.8 times / s, and the preset value of the shaking duration is 7s.

[0045] The control module may adopt, for example but not limited to, an STM32 series processor.

[0046] The working principle of the present invention is as follows: when the patient uses the device, the device is started and the cover of the suction nozzle 8 is opened. At this time, the reciprocating mechanism 10 drives the tank body 7 to complete the shaking at a preset shaking frequency and shaking time to ensure that the medicine in the tank is evenly distributed; after the OLED display screen 6 displays the word "Ready", the patient tightens the reset mechanism 13 to return the reciprocating mechanism 10 to the initial position, and the device is in a state of waiting to be triggered; when the patient inhales through the suction nozzle 8, the airflow sensor 12 detects the passage of the inhalation airflow, and quickly controls the electromagnet push rod 41 to actuate downward, thereby driving the metered dose inhaler to release the medicine, and at the same time, the pressing column 42 presses the self-reset button 2; during the patient's inhalation cycle, the electromagnet push rod 41 remains in a pressed state; after the patient finishes inhaling, the reset spring 43 and the spring built into the tank body 7 push the electromagnet push rod 41 back to the initial position, and at the same time, the number of remaining presses of the medicine tank on the OLED display screen 6 is reduced by one, realizing automatic counting; finally, the patient loosens the reset mechanism 13 and covers the suction nozzle cover 9 for next use.

[0047] To sum up, the automatic shaking inhalation-driven metered-dose inhaler of the present invention will drive the tank body 7 to automatically shake according to the preset shaking frequency and shaking duration verified by the experiment, so as to achieve uniform drug delivery dosage per press, and at the same time, the electric pressing mechanism 4 is controlled by the control module, so that the patient can achieve inhalation-drive synergy at a lower inhalation flow rate, so that more drugs can enter the lungs, thereby improving the drug administration efficiency and the treatment effect; at the same time, the OLED display screen 6 visualizes the remaining number of presses of the medicine tank, avoiding the waste of drugs still in the tank body 7 and the dangerous situation of the patient not knowing that there is no drug in the tank but still using it.

[0048] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An automatic shaking inhalation driven metered dose inhaler, It is characterized in that The invention comprises a housing (5), an electric pressing mechanism (4) arranged in the housing (5), a tank body (7) connected to the electric pressing mechanism (4), a reset mechanism (13) arranged at the bottom of the housing (5), a reciprocating mechanism (10) connected to the reset mechanism (13), a suction nozzle (8) connected to the tank body (7), a suction nozzle (8) cover arranged on the suction nozzle (8), and an OLED display screen (6) arranged on the housing (5); the reciprocating mechanism is connected to the tank body (7); an airflow sensor (12) is arranged at the bottom of the tank body (7) and on one side of the suction nozzle (8); a self-reset button (2) is arranged on one side of the reciprocating mechanism (10); the self-reset button (2) is connected to the OLED display screen (6); the reset mechanism (13) is installed at the bottom of the housing (5); the electric pressing mechanism (4), the reciprocating mechanism (10), the airflow sensor (12), and the OLED display screen (6) are connected to a control module.

2. An automatic shaking inhalation driven metered dose inhaler according to claim 1, It is characterized in that The electric pressing mechanism (4) comprises an electromagnet push rod (41), a pressing column (42) arranged on one side of the electromagnet push rod (41), a return spring (43) connected to the electromagnet push rod (41), an electromagnet body (44) connected to the other end of the return spring (43), and a pressing end cover (45) arranged below the electromagnet body (44); the pressing column (42) is fixedly connected to the electromagnet push rod (41), the pressing end cover (45) is fixedly connected to the electromagnet push rod (41), the electromagnet push rod (41) penetrates the electromagnet body (44) and is connected to the tank body (7), and when the electromagnet loses power, the electromagnet push rod (41) is reset under the action of the return spring (43) and the spring built into the tank body (7).

3. An automatic shaking inhalation driven metered dose inhaler according to claim 2, It is characterized in that The OLED display screen (6) is located in the housing (5). Each time the pressing column (42) presses the self-reset button (2), the number of remaining presses of the medicine bottle on the OLED display screen (6) decreases by one. After each start-up and the drive motor (101) runs for a preset time, the word "Ready" is displayed on the OLED display screen (6), and the device is in a state of waiting to be triggered.

4. An automatic shaking inhalation driven metered dose inhaler according to claim 3, It is characterized in that The reciprocating mechanism (10) comprises a driving motor (101), a multi-stage gear box (102) arranged on the driving motor (101), a rotating shaft base (103) arranged on the multi-stage gear box (102), a rotating shaft housing (104) arranged below the rotating shaft base (103), a reciprocating motion part (105) arranged below the rotating shaft housing (104), a rotating shaft (106) arranged in the rotating shaft base (103), the rotating shaft housing (104), and the reciprocating motion part (105), and a rotating shaft (106) arranged in the reciprocating motion part (105). 5) and a ball (107) mounted on a rotating shaft (106), and a multi-stage gear box cover (108) arranged on a multi-stage gear box (102); the driving motor (101) is connected to the reset mechanism (13), the multi-stage gear box (102) is composed of a plurality of meshing gears (109), the reciprocating motion part (105) is tightly connected to the tank body (7), a sliding groove is provided on the rotating shaft (106), the rotating shaft (106) is connected to the driving motor (101), and the reciprocating motion part (105) is provided with a nozzle of a metered dose inhaler.

5. An automatic shaking inhalation driven metered dose inhaler according to claim 4, It is characterized in that The multi-stage gear box (102) has four stages of reduction gears (109), and the total reduction ratio of the gears (109) is 1:

16.

6. An automatic shaking inhalation driven metered dose inhaler according to claim 4, It is characterized in that The reciprocating mechanism (10) is fixed to the housing (5) via a fixing component (11).

7. An automatic shaking inhalation driven metered dose inhaler according to claim 6, It is characterized in that An electromagnet top cover (1) is provided on the shell (5) above the electromagnet main body (44), an electromagnet bottom cover (3) is provided inside the shell (5) below the electromagnet top cover (1), and the electromagnet main body (44) is arranged between the electromagnet top cover (1) and the electromagnet bottom cover (3).

8. A method for operating an automatic shaking inhalation driven metered dose inhaler according to any one of claims 1 to 7, It is characterized in that The following steps are involved: Step S1, driving the motor (101) to run at a preset frequency and duration to achieve uniform distribution of the medicine in the tank; Step S2, after the motor has finished running, the OLED display screen (6) displays the word "Ready"; Step S3, the airflow sensor (12) detects the inhaled airflow; Step S4: when the airflow passes through, the electric pressing mechanism (4) is driven downward, thereby driving the metered dose inhaler to release the drug and the self-reset button (2) is pressed, and during the patient's inhalation cycle, the electric pressing mechanism (4) remains in a pressed state; Step S5, when the patient finishes inhaling, the reset spring (43) pushes the electric pressing mechanism (4) to reset, and at the same time, the number of remaining presses on the medicine bottle on the OLED display screen (6) decreases by one.

9. An automatic shaking inhalation driven metered dose inhaler according to claim 8, It is characterized in that In step S1, the method for driving the motor (101) to run at a preset frequency and duration comprises: adjusting the PWM waveform by a control module to set the duration to a preset value, and controlling the voltage output by a voltage regulating module to achieve a preset frequency. The preset shaking frequency is 3.8 times / s, and the preset shaking duration is 7s.

10. An automatic shaking inhalation driven metered dose inhaler according to claim 9, It is characterized in that The control module adopts STM32 series processor.

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