Breathing-actuated atomizer capable of avoiding medicine waste

Abstract

The invention discloses a breath-actuated atomizer capable of avoiding medicine waste in the technical field of medical apparatus and instruments, the breath-actuated atomizer comprises an air injection base and a medicine storage tube, the bottom end of the medicine storage tube is detachably connected with the air injection base, a ventilation tube is installed at the center of the bottom of an inner cavity of the medicine storage tube, and two liquid suction tubes are installed on the outer side of the ventilation tube; a stop block is mounted at the top end of the ventilation pipe through a supporting rod; a partition plate is arranged in the breather pipe, a mist storage cavity is formed between the partition plate and a top cover of the medicine storage pipe, and a connecting pipe with the bottom end extending to the position over the breather pipe is arranged at the bottom of the partition plate. The atomizer for treatment solves the problems that when an existing atomizer for treatment is used, the atomizer is always in a mist outlet state and cannot be automatically switched on and off along with inspiration and expiration of a user, when a patient uses the atomizer for expiration, a large amount of mist is scattered all around, liquid medicine is wasted, and the atomizer cannot be automatically switched on and off. And the use by people is not facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a breath-actuated nebulizer for avoiding drug waste. Background Art

[0002] The respiratory system is a general term for organs that perform gas exchange between the body and the outside world. The function of the respiratory system is mainly to exchange gases with the outside world, exhale carbon dioxide, inhale fresh oxygen, and complete the gas exchange. The respiratory system includes the respiratory tract (nasal cavity, pharynx, larynx, trachea, bronchi) and lungs. At present, in the process of respiratory medicine treatment in hospitals, it is often necessary to use a nebulizer to deliver medicine to patients. Compared with the traditional method of taking medicine to treat respiratory diseases such as asthma, the medical nebulizer atomizes the liquid medicine into tiny particles, and the medicine enters the respiratory tract and lungs through inhalation, thereby achieving painless, rapid and effective treatment.

[0003] When existing therapeutic nebulizers are used, they are usually in a mist-emitting state all the time and cannot automatically switch on and off following the user's inhalation and exhalation. As a result, when the patient exhales while using the nebulizer, a large amount of mist will be scattered, thereby causing a waste of liquid medicine, which is not conducive to people's use. Therefore, those skilled in the art provide a breath-actuated nebulizer that avoids drug waste to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a breath-actuated nebulizer that avoids drug waste, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a breath-actuated nebulizer for avoiding drug waste, comprising an air jet base and a drug storage tube, wherein the bottom end of the drug storage tube is detachably connected to the air jet base, a vent tube is installed at the center of the bottom of the inner cavity of the drug storage tube, two groups of liquid suction tubes are installed on the outside of the vent tube, and a stopper is installed at the top of the vent tube through a support rod;

[0006] A partition plate is provided inside the ventilation tube, a mist storage cavity is provided between the partition plate and the top cover of the medicine storage tube, and a connecting pipe with a bottom end extending to the top of the ventilation tube is provided at the bottom of the partition plate;

[0007] The side of the medicine storage tube is connected to a mist suction tube, and the side of the connecting tube is connected to a connecting tube extending into the interior of the mist suction tube, and one end of the connecting tube away from the connecting tube is fixedly connected to the inner wall of the mist suction tube through a fixing ring;

[0008] A support ring and a ventilation ring are fixedly installed inside the connecting pipe, a breathing brake assembly is installed between the support ring and the ventilation ring, and two sets of one-way air outlet valves are installed on the mist suction pipe at one side of the fixed ring away from the medicine storage pipe.

[0009] Preferably: the support ring has multiple groups of first air holes arranged equidistantly around its axis, the ventilation ring has a through hole located at the center and second air holes arranged equidistantly on the outer circle of the through hole, and the breathing brake assembly can seal the through hole and the second air hole.

[0010] Preferably, the breathing brake assembly comprises a baffle plate for sealing the through hole and the second air hole, a first spring is installed between one side of the baffle plate and the support ring, and a sealing block that can be snapped into the through hole is installed on the other side of the baffle plate.

[0011] Preferably: the breathing brake assembly also includes a moving rod fixedly mounted on one side of the baffle and passing through the support ring, and the moving rod can slide inside the support ring, the moving rod is located at the center of the first spring, and a suction cup is installed at one end of the moving rod away from the baffle.

[0012] Preferably: the one-way air outlet valve includes a first fixed tube fixedly installed on the outer circle of the mist suction tube, a mounting ring is installed inside the first fixed tube, the side of the mounting ring is connected to the air outlet pipe through a second spring, and a baffle is installed at one end of the air outlet pipe extending to the outside of the first fixed tube.

[0013] Preferably, two sets of one-way air inlet valves are provided on the top cover, and the one-way air inlet valves can filter the air.

[0014] Preferably: the one-way air intake valve includes a second fixed tube fixedly installed on the bottom of the top cover, the bottom of the top cover is connected to a sealing plate through a third spring sleeved on the outside of the second fixed tube, the top surface of the sealing plate is installed with a filter tube that can slide up and down against the inner wall of the second fixed tube, and the end of the filter tube extending above the top cover is installed with a retaining ring.

[0015] Preferably, the top cover is threadedly connected to the medicine storage tube, a sealing ring is installed on the top end of the medicine storage tube, and the sealing ring is in contact with the surface of the top cover.

[0016] Preferably, the bottom end of the connecting pipe is provided with a flared portion surrounding the outer ring of the top end of the ventilation pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, by setting a breathing brake component, the automatic opening and closing of the aerosol tube can be realized following the user's inhalation and exhalation. The use of the breath-actuated atomizer can effectively reduce the waste of aerosolized liquid when the user inhales, and greatly improve the absorption rate of the aerosolized liquid.

[0019] 2. In the present invention, by providing a mist storage cavity, during the user's exhalation, the atomized liquid medicine can rise to the mist storage cavity for storage, so as to be absorbed by the user's next inhalation, thereby facilitating efficient absorption of the atomized liquid medicine, and by providing a one-way air outlet valve, it is convenient for the user to freely ventilate inside the mist suction tube.

[0020] 3. In the present invention, a one-way inhalation valve is provided, and the blocking plate can be moved downward when the user inhales, and the blocking plate drives the third spring and the filter tube to move, so that external gas can flow into the interior of the medicine storage tube, which is convenient for balancing the air pressure inside the medicine storage tube and improving the comfort of the user. The elastic force of the third spring can drive the blocking plate to move back to prevent the atomized medicine from flowing out of the one-way inhalation valve when the patient is ventilating. By providing a filter tube, external air can be sent into the interior of the medicine storage tube through the filter tube for absorption by the patient, which can improve the purity of the mist absorbed by the user and prevent bacteria or viruses in the air from contaminating the atomized medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the structure of the medicine storage tube, the mist suction tube and the breathing brake assembly of the present invention;

[0023] Figure 3 It is a cross-sectional view of the mist suction pipe and the one-way air outlet valve structure of the present invention;

[0024] Figure 4 It is a cross-sectional view of the medicine storage tube and the one-way air inhalation valve structure of the present invention;

[0025] Figure 5 For the present invention Figure 2 A magnified view of middle;

[0026] Figure 6 For the present invention Figure 3 Enlarged view of middle B;

[0027] Figure 7 For the present invention Figure 4 Enlarged view of C in the middle.

[0028] In the figure: 1, jet base; 2, medicine storage tube; 3, ventilation pipe; 4, suction pipe; 5, block; 6, partition plate; 7, top cover; 8, connecting pipe; 9, mist suction pipe; 10, connecting pipe; 11, fixing ring; 12, supporting ring; 13, ventilation ring; 14, first air hole; 15, through hole; 16, second air hole; 17, baffle; 18, first spring; 19, sealing block; 20, moving rod; 21, suction cup; 22, first fixed pipe; 23, mounting ring; 24, second spring; 25, outlet pipe; 26, baffle; 27, second fixed pipe; 28, third spring; 29, blocking plate; 30, filter tube; 31, baffle ring; 32, sealing ring; 33, flaring part; 34, support rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 to Figure 7 In an embodiment of the present invention, a breath-actuated nebulizer for avoiding drug waste includes an air jet base 1 and a drug storage tube 2. The bottom end of the drug storage tube 2 is detachably connected to the air jet base 1 and can be assembled by means of a snap fastener or a threaded connection. A ventilation tube 3 is installed at the center of the bottom of the inner cavity of the drug storage tube 2, and two groups of liquid suction tubes 4 are installed on the outer side of the ventilation tube 3. A block 5 is installed on the top of the ventilation tube 3 through a support rod 34. When in use, the bottom of the inner cavity of the drug storage tube 2 can be used to store liquid medicine for atomization treatment. The air jet base 1 sends compressed air into the interior of the drug storage tube 2 through the ventilation tube 3, and the compressed air is sent out from the top of the ventilation tube 3. The negative pressure generated between the ventilation tube 3 and the liquid suction tube 4 can draw up the liquid medicine, and the rising liquid medicine hits the block 5 to become mist and fly around, thereby realizing liquid medicine atomization.

[0031] A partition plate 6 is provided inside the ventilation pipe 3, and a mist storage cavity is provided between the partition plate 6 and the top cover 7 of the medicine storage tube 2. A connecting pipe 8 with a bottom end extending to the top of the ventilation pipe 3 is provided at the bottom of the partition plate 6. A mist suction pipe 9 is connected to the side of the medicine storage tube 2, and a connecting pipe 10 extending to the inside of the mist suction pipe 9 is connected to the side of the connecting pipe 8. One end of the connecting pipe 10 away from the connecting pipe 8 is fixedly connected to the inner wall of the mist suction pipe 9 through a fixing ring 11. A supporting ring 12 and a ventilation ring 13 are fixedly installed inside the connecting pipe 10, and a breathing brake assembly is installed between the supporting ring 12 and the ventilation ring 13. Two sets of one-way air outlet valves are installed on the mist suction pipe 9 on the side of the fixing ring 11 away from the medicine storage tube 2.

[0032] The atomized medicine liquid can rise into the interior of the mist storage cavity through the connecting tube 8, and the user can directly hold the end of the mist suction tube 9 in the mouth to absorb the medicine liquid or install the inhalation mask on the end of the mist suction tube 9 for inhalation. The user aligns the mist suction tube 9 with the inhalation to open the breathing brake assembly, and the atomized medicine liquid flows into the interior of the connecting tube 10 through the connecting tube 8, and then flows into the mist suction tube 9 from between the support ring 12 and the ventilation ring 13 for the user to absorb. When the user exhales, the breathing brake assembly can be closed to prevent the mist from continuing to flow into the mist suction tube 9, which can effectively reduce the waste of atomized medicine liquid when the user inhales. When the breathing brake assembly is closed, the atomized medicine liquid can directly flow into the interior of the mist storage cavity for storage, so as to facilitate efficient absorption during the next inhalation. If the user exhales inside the mist suction tube 9, the one-way air outlet valve can be used to connect to the outside of the external mist suction tube 9, so as to facilitate the patient's free ventilation.

[0033] The support ring 12 has a plurality of first air holes 14 arranged equidistantly in a circle around its axis. The ventilation ring 13 has a through hole 15 at the center and second air holes 16 arranged equidistantly on the outer circle of the through hole 15. The breathing brake assembly can block the through hole 15 and the second air hole 16. The first air hole 14, the through hole 15 and the second air hole 16 are all used for the circulation of atomized liquid medicine.

[0034] In one embodiment, specifically, the breathing brake assembly includes a baffle 17 for blocking the through hole 15 and the second air hole 16, a first spring 18 is installed between one side of the baffle 17 and the support ring 12, and a sealing block 19 that can be snapped into the through hole 15 is installed on the other side of the baffle 17. Furthermore, the breathing brake assembly also includes a moving rod 20 fixedly installed on one side of the baffle 17 and passing through the support ring 12, and the moving rod 20 can slide inside the support ring 12, the moving rod 20 is located at the center of the first spring 18, and a suction cup 21 is installed on the end of the moving rod 20 away from the baffle 17.

[0035] When the user inhales air inside the mist suction tube 9, the baffle plate 17 can be driven to slide inside the connecting tube 10. The movement of the baffle plate 17 can drive the first spring 18 to expand and contract and the sealing block 19 to move. When the baffle plate 17 is away from the ventilation ring 13, the atomized liquid can flow into the space between the support ring 12 and the ventilation ring 13 from the second air hole 16 and the through hole 15, and then flow into the interior of the mist suction tube 9 through the first air hole 14 inside the support ring 12 for absorption by the user. The user's exhalation can push the baffle plate 17 to block the second air hole 16 and the through hole 15. At the same time, the first spring 18 provides a resetting elastic force to facilitate the rapid movement of the baffle plate 17. Furthermore, when the user inhales, the suction cup 21 can be driven to move at the same time. The suction cup 21 drives the baffle plate 17 to move through the moving rod 20, which can assist the movement of the baffle plate 17, and the moving rod 20 can make the movement of the baffle plate 17 more stable.

[0036] In one embodiment, specifically, the one-way air outlet valve includes a first fixed tube 22 fixedly installed on the outer circle of the mist suction tube 9, a mounting ring 23 is installed inside the first fixed tube 22, and the side of the mounting ring 23 is connected to the air outlet pipe 25 through a second spring 24, and the air outlet pipe 25 extends to one end of the outside of the first fixed tube 22 and is installed with a baffle 26.

[0037] The user breathes inside the mist suction tube 9, and the exhaled gas pushes the baffle 26 at the end of the first fixed tube 22 to move, and the baffle 26 drives the air outlet pipe 25 to move, and the air outlet pipe 25 drives the second spring 24 to expand and contract, and the air outlet pipe 25 moves to the bottom of the first fixed tube 22, so as to achieve the exhaust inside the mist suction tube 9. When the user inhales again, the second spring 24 increases the elastic force to make the baffle 26 block the first fixed tube 22, so as to prevent the atomized liquid from overflowing and causing waste.

[0038] In one embodiment, specifically, two sets of one-way inhalation valves are provided on the top cover 7, and the one-way inhalation valves can filter the air. The user can open the one-way inhalation valves while absorbing the atomized medicine liquid. The one-way inhalation valves can simultaneously supply air to the inside of the medicine storage tube 2, which can balance the air pressure inside the medicine storage tube 2 and improve the user's comfort. When the external gas is absorbed into the inside of the medicine storage tube 2 through the one-way inhalation valve, the mist inside the mist storage cavity can be driven to flow into the mist suction tube 9, and the one-way inhalation valve can filter the air, which makes it easier for the patient to absorb purer medicine liquid, thereby improving the treatment effect.

[0039] Specifically, the one-way inhalation valve includes a second fixed tube 27 fixedly mounted on the bottom of the top cover 7. The bottom of the top cover 7 is connected to a blocking plate 29 through a third spring 28 sleeved on the outside of the second fixed tube 27. A filter tube 30 that can slide up and down against the inner wall of the second fixed tube 27 is mounted on the top surface of the blocking plate 29. A retaining ring 31 is mounted on one end of the filter tube 30 extending above the top cover 7. When the air pressure inside the mist storage cavity drops after being absorbed by the user, the blocking plate 29 can move downward. The blocking plate 29 drives the third spring 28 to stretch and drives the filter tube 30 to slide up and down inside the second fixed tube 27. External air can flow into the interior of the medicine storage tube 2 after being filtered by the filter tube 30. When the air pressure inside the medicine storage tube 2 changes, the elastic force of the third spring 28 can drive the blocking plate 29 to move back to prevent the atomized medicine from flowing out of the one-way inhalation valve when the patient is ventilating.

[0040] On the basis of the above embodiment, the top cover 7 and the medicine storage tube 2 are threadedly connected, which can facilitate the disassembly of the top cover 7, thereby facilitating the cleaning and disinfection of the nebulizer body, and also facilitating the re-administration of the medicine liquid. The top end of the medicine storage tube 2 is installed with a sealing ring 32, and the sealing ring 32 is in contact with the surface of the top cover 7, which can improve the sealing effect of the top cover 7.

[0041] In one embodiment, specifically, the bottom end of the connecting tube 8 is provided with a flared portion 33 surrounding the outer circle of the top end of the ventilation tube 3, which can facilitate most of the mist generated by the nebulizer to flow into the interior of the mist storage cavity through the connecting tube 8, thereby facilitating the user's absorption efficiency of the nebulized medicine liquid, and the larger atomized particles gather on the surface of the flared portion 33 and then fall back, which can facilitate the re-atomization of the medicine liquid.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A breath-actuated nebulizer for avoiding drug waste, comprising an air jet base (1) and a drug storage tube (2), wherein the bottom end of the drug storage tube (2) is detachably connected to the air jet base (1), characterized in that: A vent pipe (3) is installed at the center of the bottom of the inner cavity of the medicine storage tube (2), two groups of liquid suction tubes (4) are installed on the outside of the vent pipe (3), and a stopper (5) is installed at the top of the vent pipe (3) through a support rod (34); A partition plate (6) is provided inside the ventilation pipe (3); a mist storage cavity is provided between the partition plate (6) and the top cover (7) of the medicine storage pipe (2); a connecting pipe (8) is provided at the bottom of the partition plate (6) and the bottom end of the connecting pipe (8) extends to the top of the ventilation pipe (3); The side of the medicine storage tube (2) is connected to a mist suction tube (9), and the side of the connecting tube (8) is connected to a connecting tube (10) extending into the interior of the mist suction tube (9), and one end of the connecting tube (10) away from the connecting tube (8) is fixedly connected to the inner wall of the mist suction tube (9) via a fixing ring (11); A support ring (12) and a ventilation ring (13) are fixedly installed inside the connecting pipe (10), a breathing brake assembly is installed between the support ring (12) and the ventilation ring (13), and two groups of one-way air outlet valves are installed on the mist suction pipe (9) at a side of the fixed ring (11) away from the medicine storage pipe (2).

2. A breath-actuated nebulizer for avoiding drug waste according to claim 1, characterized in that: The support ring (12) has a plurality of first air holes (14) arranged equidistantly in a circumferential manner around its axis, the ventilation ring (13) has a central through hole (15) and second air holes (16) arranged equidistantly on the outer circle of the through hole (15), and the breathing brake assembly is capable of sealing the through hole (15) and the second air holes (16).

3. A breath-actuated nebulizer for avoiding drug waste according to claim 2, characterized in that: The breathing brake assembly comprises a baffle (17) for blocking the through hole (15) and the second air hole (16); a first spring (18) is installed between one side of the baffle (17) and the support ring (12); and a sealing block (19) that can be snapped into the inside of the through hole (15) is installed on the other side of the baffle (17).

4. A breath-actuated nebulizer for avoiding drug waste according to claim 3, characterized in that: The breathing brake assembly also includes a moving rod (20) fixedly mounted on one side of the baffle (17) and penetrating the support ring (12), and the moving rod (20) can slide inside the support ring (12), the moving rod (20) is located at the center of the first spring (18), and a suction cup (21) is installed at one end of the moving rod (20) away from the baffle (17).

5. A breath-actuated nebulizer for avoiding drug waste according to claim 1, characterized in that: The one-way air outlet valve comprises a first fixed tube (22) fixedly mounted on the outer ring of the mist suction tube (9); a mounting ring (23) is mounted inside the first fixed tube (22); a side surface of the mounting ring (23) is connected to an air outlet pipe (25) via a second spring (24); and a baffle (26) is mounted on one end of the air outlet pipe (25) extending to the outside of the first fixed tube (22).

6. A breath-actuated nebulizer for avoiding drug waste according to any one of claims 1 to 5, characterized in that: The top cover (7) is provided with two groups of one-way air inlet valves, and the one-way air inlet valves can filter the air.

7. A breath-actuated nebulizer for avoiding drug waste according to claim 6, characterized in that: The one-way air intake valve comprises a second fixed tube (27) fixedly mounted on the bottom of the top cover (7); the bottom of the top cover (7) is connected to a blocking plate (29) via a third spring (28) sleeved on the outside of the second fixed tube (27); a filter tube (30) is mounted on the top surface of the blocking plate (29) and can slide up and down in contact with the inner wall of the second fixed tube (27); a retaining ring (31) is mounted on one end of the filter tube (30) extending above the top cover (7).

8. A breath-actuated nebulizer for avoiding drug waste according to claim 7, characterized in that: The top cover (7) and the medicine storage tube (2) are threadedly connected, the top end of the medicine storage tube (2) is mounted on a sealing ring (32), and the sealing ring (32) is in contact with the surface of the top cover (7).

9. A breath-actuated nebulizer for avoiding drug waste according to claim 1, characterized in that: The bottom end of the connecting pipe (8) is provided with a flared portion (33) surrounding the outer ring of the top end of the vent pipe (3).

Images