Drug aerosol delivery device for ventilators

Abstract

A drug aerosol supply device for an artificial respirator according to an embodiment of the present invention includes an air purifier (1) that discharges first air, an inhalation / breath detector (10) that detects the first air and generates a detection signal, a heating and humidifying device (3) that discharges second air with the temperature and humidity of the first air adjusted, a drug microparticle generating device (30) that operates only when the detection signal is input and sprays drug in the form of microparticles into the second air, a Y tube (5) connected on one side to a T-tube (20) and on the other side to a mask or mouthpiece, and a return tube (6) connected on one side to the Y tube (5) and on the other side to the air purifier (1) to allow the inhaled breathing air to flow.

Description

[Technical Field]

[0001] The present invention relates to a drug aerosol delivery device for a ventilator that allows the air treated by the ventilator to contain a drug in aerosol form, so that the drug can be delivered to the lungs via the airways when the patient inhales. [Background technology]

[0002] Generally, patients who have difficulty breathing spontaneously rely on a ventilator to breathe. A doctor may prescribe medication, which may be provided to the patient in the processed air from the ventilator. The medication may vary depending on the patient's physical condition. For example, if the patient's lung function is poor, the medication may help the lungs function.

[0003] The configuration of a typical artificial respirator will be described with reference to Fig. 1. Fig. 1 is a diagram for explaining the configuration of an artificial respirator.

[0004] A typical ventilator includes an air purifier 1, a first tube 2, a heating and humidifying device 3, a second tube 4, a Y-tube 5, and a return tube 6.

[0005] The air purifier 1 purifies the air, adjusts the oxygen concentration to an appropriate level, and sets the pressure and speed.

[0006] The first air is treated by the air purifying device 1 and then discharged, and reaches the heating and humidifying device 3 along the first tube 2.

[0007] The heating and humidifying device 3 increases the humidity of the primary air and heats it to increase its temperature, which can generally be set to a temperature similar to body temperature, for example, 36 to 37 degrees Celsius.

[0008] The second air treated by the heating and humidifying device 3 flows along the second tube 4 and reaches the Y-shaped tube 5 .

[0009] The Y-tube 5 has an inlet through which the second air flows in, an outlet connected to a mask or a mouthpiece, and an outlet through which exhaled air is discharged.

[0010] The air flow through the Y-tube 5 can change depending on whether the patient is inhaling or exhaling. For example, when the patient is inhaling, the second air can pass through the inlet and flow to the outlet. When the patient is exhaling, the air flows from the outlet to the outlet.

[0011] A return tube 6 is connected to the exhaust port of the Y-tube 5, and the return tube 6 is connected to the air purifying device 1, which processes the exhaled air.

[0012] On the other hand, medication can be prescribed depending on the patient's condition, and in order to administer the medication, a T-tube is generally inserted between the heating and humidifying device 3 and the second tube 4, and the medication is injected into the T-tube.

[0013] This T-tube can convert drugs into an aerosol state using a jet method. In this jet method, when the pressure is low and the air flow is fast, the low pressure sucks in the drugs, and then the jet stream generates the drugs in fine particles.

[0014] However, the conventional jet method can change the physical properties of the treated first air or the treated second air. To use the jet method, high-pressure air must be supplied from the outside, which causes problems such as a decrease in oxygen concentration, an increase in air pressure, or an increase in air flow rate.

[0015] In particular, even if the oxygen concentration is set according to the patient's lung function, the air actually provided to the patient has a low oxygen concentration, which can cause serious problems due to oxygen deficiency.

[0016] On the other hand, if the pressure or velocity of the air provided to the patient is high, breathing becomes inconvenient and natural breathing is not possible.

[0017] On the other hand, conventionally, drugs are introduced into a T-tube and then absorbed in an aerosol state as the second air passes through, which causes the drug to continue to be consumed regardless of the patient's respiratory status, especially when the patient exhales, resulting in the drug being immediately expelled without reaching the patient's lungs, resulting in wasted drug. [Prior art documents] [Patent documents]

[0018] [Patent Document 1] Korean Patent Registration No. 10-1301163 [Patent Document 2] Korean Patent Publication No. 10-2021-0018306 [Patent Document 3] Korean Patent Publication No. 10-2020-0026879 Summary of the Invention [Problem to be solved by the invention]

[0019] Therefore, an object of the present invention is to provide a drug aerosol delivery device for a ventilator that can accurately spray drugs when the patient is inhaling when administering drugs to support lung function to a patient dependent on a ventilator, and that can maintain physical properties such as oxygen concentration, pressure, and velocity of the treated first and second air. [Means for solving the problem]

[0020] To achieve the above object, an apparatus for supplying a medicinal aerosol for an artificial respirator according to an embodiment of the present invention includes an air purifying device 1 for discharging first air having a preset oxygen concentration, pressure, and speed; an inhalation detector 10 connected to the air purifying device 1 and detecting the first air to generate a detection signal; a first tube 2 connected to the inhalation detector 10 and allowing the first air to move; a heating and humidifying device 3 connected to the first tube 2 and adjusting the temperature and humidity of the first air to generate second air and discharging the second air; a second tube 4 connected to the heating and humidifying device 3 and allowing the second air to move; a T-tube 20 having a branch pipe 24 formed on one side of the straight tube 22 and connected to the second tube 4 to pass the second air; and a T-tube 20 installed on the branch pipe 24 and operating only when the detection signal is input to generate the second air. By ultrasonic vibration Drugs are produced in microparticle form The second air is inclined in a direction opposite to the direction in which the second air passes. It includes a drug microparticle generator 30 for spraying, a Y-tube 5 connected to the T-tube 20 on one side and to a mask or mouthpiece on the other side, and a return tube 6 connected to the Y-tube 5 on one side and to the air purifier 1 on the other side to allow exhaled respiratory air to flow.

[0021] In addition, in the drug aerosol delivery device for a ventilator according to an embodiment of the present invention, the detection signal is 1) a chest sensor installed on the patient's chest to detect when the patient's chest expands, or 2) a specific electroencephalogram signal generated when the patient breathes. , and 3) It may be replaced by any of those placed on the mask or mouthpiece that detects air temperature when exhaled.

[0022] In addition, the drug microparticle generating device 30 of the drug aerosol supply device for a ventilator according to an embodiment of the present invention includes an intubation tube 32 assembled to the branch tube 24, a microparticle generating element 34 arranged on the upper part of the intubation tube 32 and generating the drug in the form of microparticles, a cartridge 36 arranged on the upper part of the microparticle generating element 34 and storing the drug, a cover 40 placed over the cartridge 36, and a packing closure 50 installed on the cover 40 and having an elastic packing 52 arranged therein, and the drug may be injected into the cartridge 36 by inserting an injection needle into the packing 52.

[0023] Specific details of other embodiments are included in the detailed description and drawings. [Effects of the Invention]

[0024] The drug aerosol supply device for a ventilator according to an embodiment of the present invention, configured as described above, has a drug microparticle generator placed at the entrance of the Y tube, and the drug microparticle generator generates the drug as microparticles using ultrasonic vibrations, thereby minimizing the distance from the location where the aerosol drug is generated to the mask or mouthpiece.The oxygen concentration, pressure, and velocity of the first and second air processed by the air purifier and heating and humidifying device can be maintained, allowing the patient to breathe more naturally.

[0025] In addition, the drug aerosol supply device for a ventilator according to an embodiment of the present invention can spray the drug precisely at the time of consumption by activating the drug microparticle generating device in response to a signal generated from the inhalation breath detector, thereby significantly reducing drug waste.

[0026] Furthermore, the drug aerosol delivery device for a ventilator according to the embodiment of the present invention can minimize or completely block exposure of the inside of the cartridge, thereby preventing contamination of the cartridge and allowing the patient to live in a cleaner environment. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a diagram illustrating the configuration of an artificial respirator. [Figure 2] 1 is a diagram illustrating a drug aerosol delivery device for an artificial respirator according to an embodiment of the present invention. [Figure 3] 1 is a diagram illustrating the main configuration of a drug aerosol supply device for an artificial respirator according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0028] The advantages, features and methods of achieving the present invention will become more apparent from the following detailed description of the embodiments taken in conjunction with the accompanying drawings.

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are shown as examples to facilitate understanding of the present invention, and it should be understood that the present invention can be implemented in various ways different from the embodiments described herein. However, while describing the present invention, if it is determined that detailed description of related known functions or components may unnecessarily obscure the gist of the present invention, detailed description and specific illustrations thereof will be omitted. Furthermore, in order to facilitate understanding of the invention, the accompanying drawings are not drawn to actual scale, and the size of some components may be exaggerated.

[0030] Meanwhile, terms such as "first" and "second" may be used to describe various components, but these components should not be limited by these terms. The terms are used only to distinguish one component from another. For example, a first component can be designated a second component, and similarly, a second component can be designated a first component, without departing from the scope of the present invention.

[0031] On the other hand, the terms described below are terms established in consideration of their functions in the present invention, and may vary depending on the intentions or practices of the manufacturer, so their definitions should be based on the contents of this specification as a whole.

[0032] Like reference numbers refer to like elements throughout the specification.

[0033] Hereinafter, a drug aerosol supply device for an artificial respirator according to an embodiment of the present invention will be described with reference to Figures 2 and 3. Figure 2 is a diagram for explaining a drug aerosol supply device for an artificial respirator according to an embodiment of the present invention. Figure 3 is a diagram for explaining the main configuration of a drug aerosol supply device for an artificial respirator according to an embodiment of the present invention.

[0034] A ventilator medication aerosol delivery device according to an embodiment of the present invention may include an inspiration breath detector 10, a T-tube 20, a cover 40, and a packing closure 50.

[0035] The air purifying device 1 discharges the first air having a preset oxygen concentration, pressure, and speed. The oxygen concentration can be set according to the patient's pulmonary function. For example, if the patient's pulmonary function is half that of a normal person, the oxygen concentration can be set to about 40%.

[0036] The inhaled breath detector 10 can be connected to the air purifying device 1, and when the first air is discharged from the inhaled breath detector 10, the inhaled breath detector 10 can detect the first air and generate a detection signal.

[0037] A first tube 2 is connected to the inspiration breath detector 10 and allows the first air to move.

[0038] The heating and humidifying device 3 is connected to the first tube 2, and can adjust the temperature and humidity of the first air to generate second air, and discharge the second air.

[0039] The second tube 4 is connected to the heating and humidifying device 3 and allows the second air to move.

[0040] The T-pipe 20 has a branch pipe 24 formed on one side of the straight pipe 22, and the straight pipe 22 is connected to the second tube 4 so that the second air can pass through.

[0041] The drug microparticle generator 30 is installed in the branch pipe 24 and operates only when the detection signal is input, so as to spray the drug into the second air in the form of microparticles.

[0042] The Y-tube 5 may be connected to the T-tube 20 on one side and to a mask or mouthpiece on the other side.

[0043] One side of the return tube 6 is connected to the Y-tube 5, and the other side is connected to the air purifying device 1, allowing exhaled respiratory air to flow.

[0044] The drug aerosol supply device for a ventilator according to an embodiment of the present invention configured as described above has drug microparticle generator 30 disposed at the entrance of Y tube 5, and drug microparticle generator 30 generates drug as microparticles using ultrasonic vibrations, thereby minimizing the distance from the position where the drug in aerosol form is generated to the mask or mouthpiece. In other words, the path along which the drug in microparticle form travels is extremely short, and good drug effects can be expected even if only a small amount of drug is converted into microparticles.

[0045] In addition, the drug aerosol supply device for a ventilator according to an embodiment of the present invention can maintain the oxygen concentration, pressure, and velocity of the first and second air processed by the air purifier and heating and humidifying device by preventing the introduction of additional external air, thereby allowing the patient to breathe more naturally.

[0046] In addition, the drug aerosol supply device for a ventilator according to an embodiment of the present invention can spray the drug precisely at the time of consumption by activating the drug microparticle generating device in response to a signal generated from the inhalation breath detector, thereby significantly reducing drug waste.

[0047] In the drug aerosol supply device for a ventilator according to an embodiment of the present invention, the detection signal for activating the drug microparticle generating device 30 can be diversified as presented below, in addition to detecting the first air discharged from the air purifier 1.

[0048] 1) The detection signal may be generated by detecting when a chest sensor is placed on the patient's chest and the patient's chest expands. When the patient breathes, the chest rises and falls repeatedly, and this movement can be detected and used as the detection signal.

[0049] 2) The detection signal can be a specific electroencephalogram (EEG) signal generated when the patient breathes. When the lungs work, specific EEG signals are generated in the brain, and these EEG signals can be detected and used as the detection signal.

[0050] 3) The detection signal is installed in a mask or mouthpiece and can detect airflow during inhalation. There is a difference in the direction of airflow between inhalation and exhalation, and this difference can be detected and used as a detection signal.

[0051] 4) The detection signal is installed in the mask or mouthpiece and can detect the air pressure when breathing in. There is a difference between the pressure when breathing in and the pressure when breathing out, and this difference can be detected and used as the detection signal.

[0052] 5) The detection signal is installed in a mask or mouthpiece and can detect the air temperature when breathing in. There is a difference between the temperature when breathing in and the temperature when breathing out, and this difference can be detected and used as the detection signal.

[0053] That is, in the drug aerosol supply device for a ventilator according to an embodiment of the present invention, the detection signal generated by the inhalation breath detector 10 can be replaced with one of the various examples described above, or all of the various examples described above can be applied and the drug microparticle generating device can be activated when any one of the detection signals is generated.

[0054] As shown in FIG. 3, the drug microparticle generating device 30 can be configured to include an intubation tube 32, a microparticle generating element 34, a drug barrel 36, a cover 40, and a packing closure 50.

[0055] The cannula 32 may be assembled to the branch tube 24 .

[0056] The microparticle generating element 34 can be placed on the upper part of the intubation tube 32 and can generate the drug in microparticle form, for example, by using ultrasonic vibration to change the state of the drug into microparticle form. Such a technique utilizes well-known technology, and further detailed explanation will be omitted.

[0057] A medicine barrel 36 is disposed above the microparticle generating element 34 and stores a medicine.

[0058] A cover 40 is placed over the cartridge 36, thereby preventing the drug stored in the cartridge 36 from being exposed to the outside.

[0059] The packing closure 50 can be attached to the cover 40, and an elastic packing 52 can be disposed therein. More specifically, the packing 52 can be made of soft rubber, so that when a syringe needle is inserted, the syringe needle penetrates the packing 52, and when the syringe needle is removed, the needle hole is immediately filled due to the elasticity of the packing 52 itself. This allows the cartridge 36 to be constantly isolated from the outside.

[0060] That is, the drug aerosol supply device for a respirator according to the embodiment of the present invention can inject a drug into the drug barrel 36 by inserting a syringe needle into the packing 52 .

[0061] As a result, the drug aerosol delivery device for a ventilator according to an embodiment of the present invention can fundamentally block exposure of the interior of the cartridge 36, thereby preventing contamination of the cartridge and allowing the patient to live in a cleaner environment.

[0062] In addition, by preventing the interior of the cartridge 36 from being exposed, the entire circuit section of the ventilator, particularly the entire section of the tube connected from the air purifier 1 to the mask or mouthpiece, can be strictly prevented from being exposed to the outside.

[0063] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing the technical spirit or essential characteristics thereof.

[0064] Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting, and the scope of the present invention is defined by the claims set forth below. All modifications and variations derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. [Industrial Applicability]

[0065] A drug aerosol delivery device for a ventilator according to an embodiment of the present invention can be used to include a drug in aerosol form in the treated air when the treated air is provided to a patient from a ventilator. [Explanation of symbols]

[0066] 1. Air purifier 2, 4, 6 1st, 2nd, 3rd tube 3 Heating humidifier 5 Y tube 10. Inhalation Breath Detector 20 T tube 22 straight pipe 24 Branch pipe 30 Drug microparticle generator 32 Intubation 34 Microparticle generating element 36 Canister 40 Cover 50 Packing Closures 52 Gasket

Claims

1. an air purifying device (1) that purifies air, adjusts oxygen concentration, sets pressure and speed, and discharges treated first air based on the cleaning, adjustment, and settings; an inhalation breath detector (10) connected to the air purifying device (1) for detecting the first air and generating a detection signal; a first tube (2) connected to the inhalation breath detector (10) and through which the first air moves; a heating and humidifying device (3) connected to the first tube (2), which adjusts the temperature and humidity of the first air to generate second air and discharges the second air; a second tube (4) connected to the heating and humidifying device (3) and allowing the second air to move; a T-pipe (20) having a branch pipe (24) formed on one side of a straight pipe (22), the straight pipe (22) being connected to the second tube (4) to allow the second air to pass through; a drug microparticle generator (30) that is installed in the branch pipe (24) and operates only when the detection signal is input to generate drug microparticles in the second air by ultrasonic vibration and spray the drug in an inclined direction opposite to the direction in which the second air passes; A Y-tube (5) connected at one end to the T-tube (20) and at the other end to a mask or mouthpiece; a return tube (6) connected at one end to the Y-tube (5) and at the other end to the air purifying device (1) to allow exhaled breathing air to flow; The detection signal is 1) A chest sensor is placed on the patient's chest to detect when the patient's chest expands; 2) specific electroencephalographic signals that occur when a patient breathes; and 3) A device installed on a mask or mouthpiece that detects air temperature during exhalation, which is detected by replacing it with one of the following: A drug aerosol supply device for a ventilator, in which a drug microparticle generator (30) is placed at the entrance of the Y-tube (5) to shorten the path of travel of the drug in microparticle form, and the drug microparticle generator (30) is activated in response to a signal generated from the inhalation breath detector (10), thereby enabling accurate spraying of the drug at the time of consumption.

2. The drug microparticle generating device (30) comprises: an intubation tube (32) assembled to the branch tube (24); a microparticle generating element (34) disposed in the upper portion of the intubation tube (32) for generating a drug in the form of microparticles; a cartridge (36) disposed above the microparticle generating element (34) and storing a drug; a cover (40) covering the cartridge (36); a packing closure (50) installed on the cover (40) and having an elastic packing (52) disposed therein; 2. The device for delivering a drug aerosol to a ventilator according to claim 1, wherein a syringe needle is inserted into the packing (52) to inject the drug into the cartridge (36).

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