CN102247641B - Disposable simple targeting pneumatic atomizing administration device preloaded first-aid liquid medicine - Google Patents

Abstract

A simple targeted pneumatic atomization drug delivery device for disposable pre-filled first aid liquid, which is characterized in that it includes a liquid medicine box (1), an atomization box (2) and a mouthpiece (3). The liquid box (1) is provided with a guide sleeve (5), and the guide sleeve (5) is inserted into the diversion cover (7) in the atomization box (2), and the guide sleeve (5) and the diversion cover (7) There is a gap (8) for the liquid to flow between, the guide sleeve (5) is screwed with a spray pipe (6), the liquid medicine box (1) is equipped with a push button (14), and the spray pipe ( 6) is connected to the air inlet conduit (4), and the air outlet end of the nozzle (6) is provided with an air injection hole (9), and the air injection hole (9) is connected to the air guide hole on the guide cover (7) The inlet end of (10) is opposite, the outlet end of the diversion hole (10) is opposite to the baffle plate (11) in the atomization box (2), and the baffle plate (11) is connected with a fixing frame (16). The medicine bottle (17) containing the first aid liquid is fixed on the fixed frame (16) and located in the atomization box (2). The present invention uses air or oxygen as the atomization power and has no dependence on power supply, the volume of the atomized liquid is small, the dosage of the drug is small, the concentration of the atomized drug is high, the size of the atomized particle is controllable, and the trouble of dispensing and taking the drug can be saved.

Description

A simple targeted pneumatic atomization drug delivery device with disposable prefilled first aid liquid

technical field

The invention relates to a medical device, especially a respiratory drug delivery device that does not need a mains power supply, in particular a disposable prepackaged respiratory emergency medical device that can be used in the field or under emergency conditions at the scene of a disaster. A simple targeted pneumatic atomization drug delivery device for first aid liquid.

Background technique

At present, whether in modern wars or sudden disasters, the proportion of burn injuries suffered by combatants or victims has always been relatively high, especially in the late stage of wounded treatment, and the final effect of treatment is the inhalation burn injury of the wounded respiratory system Inhalation burns of the respiratory system lead to respiratory congestion and edema affecting lung ventilation, alveolar wall degeneration leading to decreased gas exchange capacity in the lungs, adult respiratory distress syndrome (ARDS), respiratory tract and pulmonary infections, etc. important reason. In addition, in modern warfare, a variety of chemical warfare agents and biological warfare agents and weapons containing nuclear radiation have been put into use in large quantities, and the chances and injuries of respiratory tract and lung damage caused by inhalation of chemical warfare agents, biological warfare agents and nuclear fallout through the respiratory tract It can be inferred that both the proportion and the absolute number of wounded due to respiratory system injuries should increase significantly. The high rate of death and disability caused by respiratory system injuries has seriously affected the combat effectiveness and combat mood of the troops, troubled the decision-making and command personnel of the troops, and at the same time brought serious economic and social consequences to the post-war or post-fire countries question.

Due to the anatomical structure and physiological characteristics of the respiratory system, local inhalation is the emergency treatment and effective treatment for burning injuries of the respiratory system. The conventional method of inhalation administration, and the most direct and effective method is atomization inhalation. Nebulization inhalation therapy is to use a special atomization device to atomize the drug solution into tiny particles, enter the respiratory tract and lungs through inhalation and deposit, so as to achieve rapid, effective and painless therapeutic effect. The general wounded and sick can achieve ideal results. Because the airway is an open system, it provides an advantage for targeted therapy. Through aerosol inhalation, ① the drug acts directly and quickly, and the drug can directly reach the damaged part and directly contact the damaged tissue, the contact area is large, the drug contact area is wide, and there are various types of drug receptors in the respiratory mucosa and submucosa. After the drug is inhaled into the airway, it will be in extensive contact with the receptors, that is, it will exert an extremely strong therapeutic effect locally. The inhaled drug mist directly acts on the surface of the airway, eliminating the need for oral or injection routes to reach the airway through blood circulation. , so the onset of effect is fast; ②The dose of the drug used is small, which not only reduces the burden of the body’s metabolism, but also avoids or reduces the toxic and side effects of systemic medication, which is especially important for the wounded in a seriously injured state with low body metabolism; ③Wet It can transform the airway and dilute sputum, and can be widely used for various respiratory injuries and diseases; ④ For injuries such as flame burns, atomization inhalation treatment can significantly reduce symptoms and shorten the course of the disease; The curative effect of emergency treatment is significant and rapid, which is superior to other treatment methods, and can even save the patient's life in a critical moment.

Ultrasonic nebulizers are the main atomization inhalation equipment used in clinics, field medical institutions, grassroots military health teams, and emergency medical emergency centers. The ultrasonic atomizing inhaler mainly converts electrical energy into ultrasonic mechanical energy, and the high-frequency vibration of the ultrasonic converts the medicinal liquid into aerosol mist particles. The particle diameter of the aerosol produced by the ultrasonic nebulizer inhaler is 3.7μm-10.5μm. Ultrasonic atomizing inhalers are widely used because of their simple manufacturing process, easy operation, large mist production, and low price. It has played a huge role, saved the lives of a large number of wounded and sick, greatly reduced the disability rate of the wounded and sick, and reduced medical risks. However, ultrasonic atomizing inhalers usually need electric drive, generally 220V AC drive, which is no problem in normal medical treatment, but it is more difficult to meet in wartime and fire scene. In addition, due to the atomization principle, the ultrasonic atomizing inhaler is not suitable for atomizing suspensions and macromolecular compounds, and it can only deliver distilled water vapor and a small amount of drugs. Spasm of airway smooth muscle (asthma attack), etc. In addition, in the first aid scene, different medicines need to be used for different diseases, which may cause difficulty in finding medicine or even use the wrong medicine. Therefore, if the corresponding medicine can be placed in the atomization device in advance Ready to use after opening is the key to improving the speed of rescue and the accuracy of medication.

Therefore, it is necessary to design a device with wide adaptability and no need for AC power drive, especially one that can atomize suspensions and macromolecular compounds, and can be pre-installed with corresponding first-aid medicines according to the types of respiratory symptoms so that they can be used directly when first aid is opened, and at the same time A new type of atomized drug delivery device that can adjust the diameter of atomized particles according to the part of the drug is the key to improving the treatment effect of disasters (especially fires) or war firearm injuries, and reducing casualties and complications.

Contents of the invention

The purpose of the present invention is to solve the problem that the existing ultrasonic nebulizer cannot be used in the field and under field conditions, and cannot atomize suspensions and macromolecular compounds, which affects the therapeutic effect and needs to find corresponding drugs for the symptoms, and affects the speed of medication. One that uses air or oxygen as the atomization power and has no dependence on power supply. The volume of the atomized liquid is small, the dosage of the drug is small, the concentration of the atomized drug is high, the size of the atomized particles is controllable, and the oxygen content in the atomized aerosol is high. It is a simple targeted pneumatic atomization drug delivery device that is safe and reliable, and can be preloaded with corresponding medical liquid according to different diseases.

Technical scheme of the present invention is:

A simple targeted pneumatic atomization drug delivery device for disposable pre-filled first aid liquid, which is characterized in that it includes a liquid medicine box 1, an atomization box 2 and a mouthpiece 3, and the atomization box 2 is screwed on On the liquid medicine box 1, the mouthpiece 3 is set on the atomization box 2. The liquid medicine box 1 is provided with a guide sleeve 5, and the guide sleeve 5 is inserted into the deflector 7 in the atomization box 2. There is a gap 8 for the liquid medicine to flow between the guide sleeve 5 and the deflector 7. The nozzle pipe 6 is screwed in the guide sleeve 5, and the liquid medicine box 1 is equipped with a device to drive the nozzle pipe 6 to rotate so as to move up and down. push button 14, the air inlet end of nozzle pipe 6 stretches out liquid medicine box 1 and links to each other with air inlet duct 4, is provided with jet hole 9 on the gas outlet end of nozzle pipe 6, and the diversion hole 9 on the nozzle hole 9 and the guide cover 7 The inlet end of the hole 10 is opposite, and the outlet end of the diversion hole 10 is opposite to the baffle 11 in the atomization box 2. The baffle 11 is connected with a fixing frame 16, and the medicine bottle 17 pre-installed with the first aid liquid is fixed on the The fixed frame 16 is located in the atomization box 2 .

The baffle plate 11 has a hemispherical structure.

The bottom of the liquid medicine box 1 is provided with at least three supporting feet 12 which are not connected to each other, and each supporting foot 12 has a skirt-like structure.

The nozzle pipe 6 is screwed and connected with the inner screw hole at the bottom of the liquid medicine box 1 through the connecting plate 15 with external threads.

The push button 14 is connected with the spray pipe 6 through a connecting rod, and the connecting rod is located between two adjacent supporting feet 12 at the lower part of the liquid medicine box 1 .

The medicine bottle 17 is inserted or screwed on the fixed frame 16 .

The medicine bottle 17 is provided with an operating handle 18 that separates it from the fixing frame 17 .

The main body of the medicine bottle 17 is located in the connecting pipe 13 connecting the atomization box 2 and the mouthpiece 3 .

Beneficial effects of the present invention:

(1) The present invention can directly use small compressed air pumps and cylinders of compressed oxygen as power drives, and has no dependence on power supply.

(2) The atomized liquid of the present invention has a small volume (can be as small as about 2ml), which facilitates the atomization of a small amount of medicine.

(3) The dosage of the present invention is small, and the concentration of the nebulized medicine is high, which can effectively avoid the waste of medicine.

(4) The present invention can make the medicine directly enter the target organ selectively, act rapidly, and effectively reduce side effects.

(5) The present invention can atomize various medicines and expand the application range of atomization therapy.

(6) The atomized aerosol of the present invention has a high oxygen content, which avoids hypoxia caused by long-term atomization treatment, and the patient has good tolerance.

(7) The present invention has high safety in use and does not require direct electric drive.

(8) The present invention is simple in structure, low in cost, small in size and easy to carry.

(9) The present invention is easy to use, and can be used immediately after being connected to the air source, and requires relatively low operating skills.

(10) The particle size of the atomized particles of the present invention is adjustable, and the adjustment is convenient and quick.

(11) Since the present invention is pre-installed with emergency medicine, there is no need to dispense or take medicine during use, and it can be used immediately after opening, which can win valuable time for rescue.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a view along the direction A of Fig. 1 .

Fig. 3 is a schematic diagram of the assembly structure of the present invention.

Fig. 4 is a schematic diagram of the principle of exercise medicine supply of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1, 2, and 3.

A simple targeted pneumatic atomization drug delivery device with disposable pre-filled first aid liquid. All the parts are made of medical plastic injection molding. Container 3 and intake duct 4. As shown in Figure 3, the air inlet conduit 4 is used to connect with the air source (the air source that is conveniently carried in the first aid scene such as a miniature compressed air pump or an oxygen cylinder), and the atomization box 2 is screwed on the medicine On the liquid box 1, the mouthpiece 3 is set on the atomization box 2, and there is a tight fit between the two that can be inserted and removed. A connecting pipe 13 is specially designed on the atomization box 2 to realize the connection between the atomization box 2 and the mouthpiece 3 . In the guide cover 7 in the guide cover 7, there is a gap 8 for the liquid medicine to flow between the guide sleeve 5 and the guide cover 7. The guide sleeve 5 is screwed with a nozzle 6, and the liquid medicine box 1 is equipped with a drive The push button 14 that the nozzle pipe 6 rotates and moves up and down, in order to make the connection reliable and easy to adjust, during specific implementation, a connection plate 15 with an external thread can be installed on the nozzle pipe 6, and the connection disk 15 is screwed on the liquid medicine. In the inner screw hole at the bottom of the box 1, the air inlet end of the nozzle pipe 6 stretches out from the liquid medicine box 1 and is connected with the air inlet conduit 4, and the gas outlet end of the nozzle pipe 6 is provided with an air injection hole 9, and the air injection hole 9 is connected to the flow guide cover 7. The inlet end of the diversion hole 10 on the top is opposite, and the outlet end of the diversion hole 10 is opposite to the baffle plate 11 of the hemispherical structure in the atomization box 2. The baffle plate 11 is connected with a fixing frame 16 and is pre-installed with a first aid The medicine bottle 17 of medicinal liquid is fixed on the described fixing frame 16 and is positioned at the described atomization box 2, in order to facilitate the fixing of the medicine bottle 17, the main body of the medicine bottle 17 is preferably located at the connection atomizer during specific implementation. In the connection pipe 13 between the chemical box 2 and the mouthpiece 3, as shown in FIG. 3 , the medicine bottle 17 and the fixing frame 16 can be connected through a plug-in or threaded structure. In order to facilitate the medicine bottle 17 to be taken off from the fixed frame 16 and opened and the medicinal solution can be injected into the drug storage box 1, an operation handle 18 that separates it from the fixed frame 17 can be provided on the drug bottle 17 (such as the bottom), and can be pulled or Rotating the operating handle 18 can take off the medicine bottle 17 from the fixed frame and the medicine liquid then directly flows into the medicine storage box 1 . In order to prevent the medicine liquid from leaking due to the dumping of the medicine storage box, an anti-fall structure can also be designed for the medicine storage box during specific implementation, that is, at least three support feet 12 that are not connected to each other are arranged at the bottom of the medicine liquid box 1, and each Two supporting feet 12 are in the shape of a skirt, and the supporting feet 12 form a support structure with a small upper part and a larger lower part. The connecting rod connecting the push button 14 and the nozzle should be positioned between the adjacent supporting feet 12, as shown in Figure 2 shown.

The working principle of the present invention is shown in Figure 3.

，理想流体做稳定流动时，同一流管的不同截面处，单位体积流体的动能、势能及该处压强三者之和都相等。在本发明中，压缩空气或氧气经射流喷嘴小孔喷射形成高速气流，实际上就是加强了气压，根据伯努利方程，由于此处液体动能和势能不变，因此此时射流喷气孔9周边形成低压，从而带动药液沿导管5与导流罩7之间的间隙运动，逐渐加快速度，在射流喷气孔9顶端达到最大速度，形成射流进入导流孔10。液体从导流孔10中喷出冲击挡板11，最终脱离固体边界的约束，在空气中作扩散流动完成雾化过程。如图4所示。 According to the Bernoulli equation of fluid mechanics

, when the ideal fluid flows stably, the sum of kinetic energy, potential energy and pressure per unit volume of the fluid at different cross-sections of the same flow tube are equal. In the present invention, compressed air or oxygen is sprayed through the small hole of the jet nozzle to form a high-speed airflow, which in fact strengthens the air pressure. According to the Bernoulli equation, since the kinetic energy and potential energy of the liquid here remain unchanged, the periphery of the jet jet hole 9 is A low pressure is formed, thereby driving the liquid medicine to move along the gap between the conduit 5 and the shroud 7, gradually increasing the speed, reaching the maximum speed at the top of the jet spray hole 9, and forming a jet flow into the flow guide hole 10. The liquid sprays out of the guide hole 10 and impacts the baffle plate 11, and finally breaks away from the constraints of the solid boundary, and diffuses in the air to complete the atomization process. As shown in Figure 4.

When in use, the mouthpiece 3 should be removed from the atomization box first, and then pull or turn the operating handle 18 to separate the medicine bottle 17 from the fixed frame 16, and the medicine liquid will fall into the medicine storage box 1 at the lower part, and then directly remove the medicine bottle 17 without The medicine bottle 17 of medicinal liquid is taken out, and then the mouthpiece 3 is inserted on the connecting pipe 13 on the atomization box 2 and can be used. The gas with pressure of the gas source enters the nozzle 6 from the air inlet conduit 4. Since the pressure in the nozzle 6 is constant, the pressure gas entering the nozzle 6 is ejected from the nozzle hole 9 at a high speed and blows out in the nozzle 6. Negative pressure is generated around the hole 9, and under the action of air pressure, the medicinal liquid in the liquid storage box 1 goes up along the gap 8 between the conduit 5 and the shroud 7, mixes with the pressure gas, enters the diversion hole 10, and then forms a mist Part of the atomized particles are blocked by the baffle 11 to form drops of medicine and fall back into the medicine storage box. The farther the distance between the baffle and the guide hole 10, the larger the diameter of the atomized particles. By pushing the push button 14 That is to drive the spray tube 6 to rotate, because the liquid medicine box 1 is stationary, therefore, the spray tube 6 will move up or down, thereby changing the distance of the air injection hole 9 from the diversion hole 10, so that the distance between the air inlet port of the diversion hole 10 The pressure changes, which in turn changes the flow rate of the medicinal liquid in the diversion hole 10, and the change of the flow rate of the medicinal liquid in the diversion hole 10 can change the particle size of the atomized particles, thereby providing different particles of atomized particles according to the different parts of the drug. , to achieve the best therapeutic effect.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (8)

1. the simple and easy targeting pneumatic nebulization doser of a disposable prepackage first aid medicinal liquid; It is characterized in that it comprises liquid medicine box (1), spray box (2) and sucks device (3); Described spray box (2) spinning is on liquid medicine box (1); Sucking device (3) is sleeved on the spray box (2); Be provided with guide pin bushing (5) in the described liquid medicine box (1), guide pin bushing (5) is inserted in the kuppe (7) in the spray box (2), is provided with between guide pin bushing (5) and the kuppe (7) to supply the mobile gap of medicinal liquid (8); Be installed with jet pipe (6) in the described guide pin bushing (5); Be equipped with on the liquid medicine box (1) and drive jet pipe (6) thereby the push button (14) that rotation moves up and down jet pipe (6), the inlet end of jet pipe (6) stretches out liquid medicine box (1) and links to each other with air induction conduit (4), and the outlet side of jet pipe (6) is provided with fumarole (9); The entrance point of the pod apertures (10) on fumarole (9) and the kuppe (7) is relative; Baffle plate (11) in the port of export of pod apertures (10) and the spray box (2) is relative, and described baffle plate (11) is connected with fixed mount (16), and prepackage has the medicine bottle (17) of first aid medicinal liquid to be fixed on the described fixed mount (16) and is arranged in described spray box (2).

2. the simple and easy targeting pneumatic nebulization doser of disposable prepackage first aid medicinal liquid according to claim 1 is characterized in that described baffle plate (11) is the hemisphere face structure.

3. the simple and easy targeting pneumatic nebulization doser of disposable prepackage first aid medicinal liquid according to claim 1; The bottom that it is characterized in that described liquid medicine box (1) is provided with disjunct three feets (12) mutually at least, and each feet (12) is train of dress shape structure.

4. the simple and easy targeting pneumatic nebulization doser of disposable prepackage first aid medicinal liquid according to claim 1 is characterized in that described jet pipe (6) spins through the inner bolt hole that has externally threaded terminal pad (15) and liquid medicine box (1) bottom to link to each other.

5. the simple and easy targeting pneumatic nebulization doser of disposable prepackage first aid medicinal liquid according to claim 1; It is characterized in that described push button (14) links to each other with jet pipe (6) through connecting rod, described connecting rod is positioned between adjacent two feets (12) of liquid medicine box (1) bottom.

6. the simple and easy targeting pneumatic nebulization doser of disposable prepackage first aid medicinal liquid according to claim 1 is characterized in that described medicine bottle (17) plug-in mounting or spinning are on described fixed mount (16).

7. according to the simple and easy targeting pneumatic nebulization doser of claim 1 or 6 described disposable prepackage first aid medicinal liquids, it is characterized in that described medicine bottle (17) is provided with to make itself and the isolating operating handle of fixed mount (16) (18).

8. the simple and easy targeting pneumatic nebulization doser of disposable prepackage first aid medicinal liquid according to claim 1 is characterized in that the main body of described medicine bottle (17) is arranged in the connection tube (13) that connects spray box (2) and suck device (3).

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