An atomizing administration device

Abstract

The atomization administration device comprises a mask, a medicine inlet pipe, a blocking piece and a driving mechanism. The mask is provided with a medicine inlet and an air outlet. The medicine inlet pipe is a hard pipe, which is connected to the medicine inlet of the mask and can be connected to the air pipe of the atomization cup. The blocking piece comprises a baffle, which can block the medicine inlet to close the medicine inlet. The driving mechanism is arranged outside the medicine inlet pipe and connected to the baffle. When the air outlet discharges gas, the driving mechanism can drive the baffle to block the medicine inlet by the gas discharged from the air outlet and drive the baffle to separate from the medicine inlet when no gas is discharged. The atomization administration device can greatly improve the utilization rate of the aerosol and improve the atomization effect.

Description

Technical Field

[0001] This invention specifically relates to an atomized drug delivery device. Background Technology

[0002] Currently, inhaled aerosols are generally required for the treatment of respiratory diseases such as bronchitis, asthma, and pneumonia. Most existing inhaled aerosol delivery devices combine a nebulizer, a nebulizer cup, and a nebulizer mask. To use, the nebulizer mask is connected to the nebulizer cup, which is then connected to the nebulizer via a tubing. The mask is placed over the mouth and nose, and the nebulizer is then activated. The medication in the nebulizer cup is atomized and enters the body through the mouth and nose.

[0003] Existing face masks, to maintain unobstructed breathing, have ventilation holes on both sides connecting the mask's interior to the outside. However, because the nebulizer operates continuously during nebulization, while the patient inhales the aerosol during inhalation, exhalation and the newly entered air flow into the nebulizer cup simultaneously. This causes a rapid increase in pressure within the cup, forcing some aerosol out through the ventilation holes along with the exhaled air. This results in wasted aerosol. Specifically, since the normal inhalation-to-exhalation ratio is 1:1.5, with exhalation taking longer than inhalation, approximately half of the aerosol may be wasted during a single nebulization cycle, potentially leading to a decrease in therapeutic efficacy. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a nebulized drug delivery device that can greatly improve the utilization rate of aerosols and at the same time improve the therapeutic effect of nebulization.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a nebulized drug delivery device, comprising:

[0006] A face mask, wherein the face mask is provided with a drug inlet and an air outlet;

[0007] The drug inlet tube is a rigid tube that is connected to the drug inlet of the mask and can be connected to the air tube of the nebulizer cup.

[0008] A blocking component, including a baffle plate, the baffle plate being capable of blocking the drug inlet to close the drug inlet;

[0009] A driving mechanism is disposed outside the drug inlet tube and connected to the baffle. When gas is discharged from the outlet, the driving mechanism can drive the baffle to block the drug inlet through the gas discharged from the outlet, and drive the baffle to disengage from the drug inlet when no gas is discharged.

[0010] Furthermore, the drive mechanism includes a rotating rod, propeller blades, a fixed frame, a movable frame, a first elastic element, a support rod, and an intermediate transmission element;

[0011] The rotating rod is rotatably mounted on the outer wall of the drug inlet tube. There are multiple propeller blades, which are circumferentially spaced on the rotating rod. The propeller blades can pass through the air outlet in sequence. When gas flows out of the air outlet, the flowing gas can push the propeller blades aligned with it, thereby driving the rotating rod to rotate.

[0012] Both the fixed frame and the movable frame are hollow. The fixed frame is fixed inside the drug inlet tube, and the movable frame is slidably disposed inside the drug inlet tube and located near the mask relative to the fixed frame. The first elastic element is supported between the fixed frame and the movable frame. The baffle is located inside the mask. The support rod is disposed on the movable frame and passes through the drug inlet, supporting the baffle. The side wall of the drug inlet tube has a through hole that connects the drug inlet tube to the outside. An elastic membrane is disposed on the through hole to cover the through hole. A push plate connected to the movable frame is embedded in the center of the elastic membrane. The intermediate transmission component is connected between the rotating rod and the push plate. When the rotating rod rotates clockwise, it can drive the push plate to descend through the intermediate transmission component.

[0013] Furthermore, the intermediate transmission component includes a mounting rod, a lever, and a pull rope. The mounting rod is vertically disposed on the outer wall of the drug inlet tube. A hinge is provided on the mounting rod, and it is located on the side closer to the mask relative to the push plate. The lever is hinged to the hinge. One end of the lever is a pushing end, and the other end is a pulling end. The distance between the hinge and the pushing end is less than the distance between the hinge and the pulling end. The pushing end can slide against the push plate. The end of the pull rope is fixed to the rotating rod and connected to the pulling end. When the rotating rod rotates clockwise, the pull rope can be wound around the rotating rod.

[0014] Furthermore, the push plate is provided with a guide groove, and the pushing end is slidably engaged in the guide groove.

[0015] Furthermore, the drive mechanism also includes a pulley system, which is disposed outside the drug inlet tube, and the pull rope passes through the guide of the pulley system and is parallel to the drug inlet tube.

[0016] Furthermore, the driving mechanism also includes an anti-rotation structure, which includes a friction plate and an adjusting rod. The friction plate is disposed on the outer wall of the drug inlet tube via the adjusting rod. The friction plate abuts against the outer wall of the rotating rod. The adjusting rod can adjust the clamping force between the friction plate and the rotating rod on the rotating rod.

[0017] Furthermore, the outer tube is coaxially arranged with the drug inlet tube and is sealed to the outer cover, and the drug inlet tube is in communication with the outside. The outer tube covers the drug inlet, air outlet and drive mechanism inside.

[0018] Furthermore, the drain pipe is connected to the air outlet and aligned with the propeller blades.

[0019] The beneficial effects of this invention are:

[0020] In use of the aforementioned nebulized drug delivery device, first connect the drug inlet tube to the air tube of the nebulizer cup, then place the mask over the mouth and nose, and then start the nebulizer. When the patient inhales, the baffle is not blocking the drug inlet, and the nebulized mist enters through the drug inlet. When the patient exhales, a large amount of gas exits through the outlet. The gas passes through the drive mechanism, which drives the baffle to block the drug inlet, closing it and preventing the nebulized mist from continuing to flow into the mask and then exiting through the outlet. When exhalation is completed and inhalation begins, the air pressure inside the mask decreases rapidly, and almost no gas exits from the outlet. The drive mechanism then drives the baffle to disengage from the drug inlet, allowing the nebulized mist to enter the mask through the drug inlet, completing the nebulized inhalation action.

[0021] By using the above-mentioned device, the waste caused by nebulizing aerosol during the nebulization process can be greatly reduced by closing the inlet during exhalation, thereby improving the utilization rate of the aerosol and achieving the goal of saving costs and improving the therapeutic effect. At the same time, due to the improved drug utilization rate, the treatment time and course of treatment can be further shortened. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of a nebulized drug delivery device according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 The diagram shows the assembly relationship of the rotating rod, propeller blades, and drainage tube in the nebulizer drug delivery device.

[0025] Figure 3 for Figure 1The diagram shows the stop mechanism in the nebulizer drug delivery device.

[0026] Figure 4 for Figure 1 A schematic diagram at point A in the middle;

[0027] Figure 5 for Figure 1 A schematic diagram showing the plug closing the drug inlet in the nebulizer;

[0028] Figure label:

[0029] 100. Face mask; 110. Drug inlet; 120. Air outlet; 200. Drug inlet tube; 300. Blocking component; 400. Drive mechanism; 410. Rotating rod; 420. Propeller blade; 430. Fixed frame; 440. Movable frame; 450. First elastic element; 460. Support rod; 470. Intermediate transmission component; 471. Mounting rod; 472. Lever; 473. Pull rope; 480. Elastic membrane; 490. Anti-rotation structure; 491. Friction plate; 492. Adjusting rod; 500. Drainage tube; 600. Outer tube; 700. Pulley block. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Please see Figures 1 to 5 The present invention provides an atomized drug delivery device, including a mask 100, a drug inlet tube 200, a plugging component 300, and a driving mechanism 400.

[0032] Specifically, the mask 100 has a medication inlet 110 and an air outlet 120. The medication inlet tube 200 is a rigid tube connected to the medication inlet 110 of the mask 100, and can also connect to the air tube of the nebulizer cup. The blocking component 300 includes a baffle plate that can block the medication inlet 110 to close it. The drive mechanism 400 is located outside the medication inlet tube 200 and connected to the baffle plate. When gas is discharged from the air outlet 120, the drive mechanism 400 can drive the baffle plate through the gas discharged from the air outlet 120 to block the medication inlet 110, and when no gas is discharged, it drives the baffle plate to disengage from the medication inlet 110.

[0033] In use, first connect the inlet tube 200 to the endotracheal tube of the nebulizer cup, then place the mask 100 over the mouth and nose. Next, start the nebulizer. When the patient inhales, the baffle is not blocked on the inlet 110, and the nebulized mist enters through the inlet 110. When the patient exhales, a large amount of gas exits through the outlet 120. The gas is driven by the drive mechanism 400 to block the inlet 110, closing it and preventing the nebulized mist from continuing to flow into the mask 100 before exiting through the outlet 120. When exhalation is completed and inhalation begins, the air pressure inside the mask 100 decreases rapidly, and almost no gas exits from the outlet. The drive mechanism 400 then drives the baffle to disengage from the inlet 110, allowing the nebulized mist to enter the mask 100 from the inlet 110, completing the nebulization inhalation action.

[0034] By using the above-mentioned device, the waste caused by the nebulized aerosol during the nebulization process can be greatly reduced by closing the drug inlet 110 during exhalation, thereby improving the utilization rate of the aerosol and achieving the goal of saving costs and improving the therapeutic effect. At the same time, due to the improved drug utilization rate, the treatment time and course of treatment can be further shortened.

[0035] In this embodiment, the drive mechanism 400 includes a rotating rod 410, a propeller blade 420, a fixed frame 430, a movable frame 440, a first elastic element 450, a support rod 460, and an intermediate transmission element 470.

[0036] The rotating rod 410 is rotatably mounted on the outer wall of the drug inlet tube 200. Multiple propeller blades 420 are arranged circumferentially at intervals on the rotating rod 410. The propeller blades 420 sequentially pass through the air outlet 120. When gas flows out of the air outlet 120, the flowing gas pushes the aligned propeller blades 420, thereby driving the rotating rod 410 to rotate.

[0037] Both the fixed frame 430 and the movable frame 440 are hollow. The fixed frame 430 is fixed inside the drug inlet tube 200, and the movable frame 440 is slidably disposed inside the drug inlet tube 200, positioned relative to the fixed frame 430 and closer to the face mask 100. The first elastic element 450 is supported between the fixed frame 430 and the movable frame 440, and the baffle is located inside the face mask 100. The support rod 460 is disposed on the movable frame 440 and passes through the drug inlet 110 and is supported on the baffle. The side wall of the drug inlet tube 200 has a through hole that connects the drug inlet tube 200 to the outside. An elastic membrane 480 is disposed on the through hole, covering the through hole. A push plate connected to the movable frame 440 is embedded in the center of the elastic membrane 480. An intermediate transmission element 470 is connected between the rotating rod 410 and the push plate. When the rotating rod 410 rotates clockwise, the push plate can be driven to descend through the intermediate transmission element 470.

[0038] Specifically, the intermediate transmission component 470 includes a mounting rod 471, a lever 472, and a pull rope 473. The mounting rod 471 is vertically mounted on the outer wall of the drug inlet tube 200, and a hinge is provided on the mounting rod 471, which is located on the side closer to the mask 100 relative to the push plate. The lever 472 is hinged to the hinge, with one end being the pushing end and the other end being the pulling end, and the distance between the hinge and the pushing end is less than the distance between the hinge and the pulling end. The pushing end can slide against the push plate, and the end of the pull rope 473 is fixed to the rotating rod 410 and connected to the pulling end. When the rotating rod 410 rotates clockwise, the pull rope 473 can be wound around the rotating rod 410.

[0039] During inhalation, the baffle disengages from the drug inlet 110, and no gas flows out of the outlet 120. During exhalation, gas flows rapidly out of the outlet 120, impacting the propeller blades 420. This drives the rotating rod 410 to rotate clockwise, causing the pull rope 473 to wrap around it. This causes the pulling end to rise and the pushing end to fall, which in turn causes the baffle to fall until the baffle closes the drug inlet 110. When exhalation is complete and inhalation begins, no gas flows out of the outlet 120. Under the action of the first elastic element 450, the movable frame 440, the push plate, and the baffle rise, causing the baffle to disengage from the drug inlet 110 and simultaneously pushing the pushing end in the opposite direction, driving the pulling end to fall. The pull rope 473 drives the rotating rod 410 to rotate in the opposite direction to release the line for use in the next breathing process.

[0040] In practical implementation, a guide groove can be opened on the push plate, and the push end can be slidably locked in the guide groove to guide the lever 472, which can prevent the lever 472 from moving randomly. In addition, a pulley block 700 can be set outside the drug inlet tube 200. After the pull rope 473 passes through the guide of the pulley block 700, it is parallel to the drug inlet tube 200, which can prevent the pull rope 473 from getting tangled.

[0041] In a preferred embodiment, the drive mechanism 400 further includes an anti-rotation structure 490. The anti-rotation structure 490 includes a friction plate 491 and an adjusting rod 492. The friction plate 491 is disposed on the outer wall of the drug inlet tube 200 via the adjusting rod 492, and the friction plate 491 abuts against the outer wall of the rotating rod 410. The adjusting rod 492 can adjust the clamping force between the friction plate 491 and the rotating rod 410.

[0042] During assembly, the friction plate 491 is pressed against the outer wall of the rotating rod 410 by adjusting the adjusting rod 492, thereby adjusting the friction between the friction plate 491 and the rotating rod 410. This prevents the rotating rod 410 from continuing to rotate due to inertia after the tension is released when the rotating rod 410 is pulled counterclockwise by the pull rope 473, thus affecting the subsequent pulling action of the lever 472.

[0043] In another preferred embodiment, the device further includes an outer tube 600. The outer tube 600 is coaxially arranged with the drug inlet tube 200 and is sealed to the outer cover. The drug inlet tube 200 is in communication with the outside. The outer tube 600 covers the drug inlet 110, the air outlet 120 and the drive mechanism 400 inside it.

[0044] During operation, the outer tube 600 can be held by hand. As a further preferred embodiment, the device also includes a guide tube 500, which is connected to the air outlet 120 and aligned with the propeller blade 420. Through the guiding effect of the guide tube 500, the airflow blown toward the propeller blade 420 can be concentrated, thereby driving the propeller blade 420 to rotate rapidly.

[0045] How to use the above-mentioned nebulizer for drug delivery:

[0046] When using, hold the outer tube 600, connect the drug inlet tube 200 to the airway of the nebulizer cup, then place the mask 100 over your mouth and nose, and then start the nebulizer.

[0047] By using the above-mentioned device, the waste caused by the nebulized aerosol during the nebulization process can be greatly reduced by closing the drug inlet 110 during exhalation, thereby improving the utilization rate of the aerosol and achieving the goal of saving costs and improving the therapeutic effect. At the same time, due to the improved drug utilization rate, the treatment time and course of treatment can be further shortened, making it more convenient for patients.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A nebulizer for drug delivery, comprising a nebulizer body and a nebulizer cup, characterized in that, Also includes: A face mask, wherein the face mask is provided with a drug inlet and an air outlet; The drug inlet tube is a rigid tube that is connected to the drug inlet of the mask and can be connected to the air tube of the nebulizer cup. A blocking component, including a baffle plate, the baffle plate being capable of blocking the drug inlet to close the drug inlet; A driving mechanism is disposed outside the drug inlet tube and connected to the baffle. When gas is discharged from the outlet, the driving mechanism can drive the baffle to block the drug inlet through the gas discharged from the outlet, and drive the baffle to disengage from the drug inlet when no gas is discharged. The drive mechanism includes a rotating rod, a propeller blade, a fixed frame, a movable frame, a first elastic element, a support rod, and an intermediate transmission element; The rotating rod is rotatably mounted on the outer wall of the drug inlet tube. There are multiple propeller blades, which are circumferentially spaced on the rotating rod. The propeller blades can pass through the air outlet in sequence. When gas flows out of the air outlet, the flowing gas can push the propeller blades aligned with it, thereby driving the rotating rod to rotate. Both the fixed frame and the movable frame are hollow. The fixed frame is fixed inside the drug inlet tube, and the movable frame is slidably disposed inside the drug inlet tube and located near the mask relative to the fixed frame. The first elastic element is supported between the fixed frame and the movable frame. The baffle is located inside the mask. The support rod is disposed on the movable frame and passes through the drug inlet and is supported on the baffle. The side wall of the drug inlet tube has a through hole that connects the drug inlet tube to the outside. An elastic membrane is disposed on the through hole to cover the through hole. A push plate connected to the movable frame is embedded in the middle of the elastic membrane. The intermediate transmission component is connected between the rotating rod and the push plate. When the rotating rod rotates clockwise, it can drive the push plate to descend through the intermediate transmission component. The intermediate transmission component includes a mounting rod, a lever, and a pull rope. The mounting rod is vertically mounted on the outer wall of the drug inlet tube. A hinge is provided on the mounting rod, and it is located near the mask relative to the push plate. The lever is hinged to the hinge. One end of the lever is a pushing end, and the other end is a pulling end. The distance between the hinge and the pushing end is less than the distance between the hinge and the pulling end. The pushing end can slide against the push plate. The end of the pull rope is fixed to the rotating rod and connected to the pulling end. When the rotating rod rotates clockwise, the pull rope can be wound around the rotating rod.

2. The nebulized drug delivery device according to claim 1, characterized in that, The push plate is provided with a guide groove, and the push end is slidably engaged in the guide groove.

3. The nebulized drug delivery device according to claim 1, characterized in that, The drive mechanism also includes a pulley system, which is disposed outside the drug inlet tube, and the pull rope passes through the guide of the pulley system and is parallel to the drug inlet tube.

4. The nebulized drug delivery device according to claim 1, characterized in that, The driving mechanism also includes an anti-rotation structure, which includes a friction plate and an adjusting rod. The friction plate is disposed on the outer wall of the drug inlet tube via the adjusting rod. The friction plate abuts against the outer wall of the rotating rod. The adjusting rod can adjust the clamping force between the friction plate and the rotating rod on the rotating rod.

5. The nebulized drug delivery device according to claim 1, characterized in that, It also includes an outer tube, which is coaxially arranged with the drug inlet tube and sealed to the mask. The drug inlet tube is connected to the outside. The outer tube covers the drug inlet, air outlet and drive mechanism inside it.

6. The nebulized drug delivery device according to claim 2, characterized in that, It also includes a drain pipe connected to the air outlet and aligned with the propeller blades.

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