CN203749970U - Gas compression type atomizing cup component suitable for online use of breathing machine - Google Patents

Abstract

The utility model discloses a gas compression type atomizing cup component suitable for online use of a breathing machine. The gas compression type atomizing cup component comprises an atomizing cup body (1), an atomizing cup cover (2) and an atomizing cup core (3), the atomizing cup core (3) comprises a support part (5) and an atomizing piece (6), a hollow structure (8) is formed in the middle of the atomizing piece (6), a vertical baffle plate (9) is symmetrically mounted at each of the left and right ends of the atomizing piece (6), the upper end of the outside of each vertical baffle plate (9) is connected with an oblique baffle plate (10), a hollow cone (7) sleeves a gas nozzle (4), and the atomizing cup cover (2) is mounted on the atomizing cup body (1). The gas compression type atomizing cup component suitable for the online use of the breathing machine has beneficial effects that the atomized particles are distributed more uniformly, and the atomizing output is softer, more continuous and more stable; because the cup body is cone-shaped, more liquid medicine can backflow to the cup bottom; the gas compression type atomizing cup component is capable of preventing the liquid medicine flowing out of connectors of a tee so that the use requirements are met under oblique state.

Description

A gas compression atomization cup assembly suitable for on-line use of a ventilator

technical field

The utility model relates to a gas compression atomization cup assembly suitable for on-line use of a ventilator.

Background technique

At present, gas compression nebulizers have been widely used in clinical medicine. For respiratory diseases, aerosol inhalation is an ideal route of administration, which can directly act on the affected part. This method can avoid injection or oral administration. Systemic adverse reactions caused by drugs can achieve more effective therapeutic effect with less drug dosage. For critically ill patients who need ventilator-assisted breathing, nebulization therapy is required. At present, non-invasive ventilators do not have their own nebulization inhalation device. An atomization device, so that ventilation and atomization inhalation therapy can be performed simultaneously.

Since the nebulizer used in-line with the ventilator is aimed at critically ill patients who are bedridden, there are some special requirements for the nebulization output and usage status, for example: the output nebulized particles are higher than that of ordinary gas compression nebulizers. Smaller, the distribution of atomized particles is more uniform, the required atomization volume is generally between 0.1mL/min ≤ atomization volume ≤ 0.15 mL/min, and the atomization output is required to be softer, continuous and stable. The work of the ventilator is intermittent, but the atomization process of the nebulizer is continuous, so the nebulizer is required to have a certain space for storing the mist. At the same time, when it is used online with the ventilator, the nebulizer is connected to the gas circuit of the ventilator through a three-way connection, and its working state cannot be in a horizontal and normal state, and it may be inclined, so nebulization is required The device has the characteristic that it can work normally even in the tilted state. The atomizer of the utility model patent is a self-contained three-way atomization device designed according to the above characteristics and requirements, and has the characteristics of simple structure, safety and reliability.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a gas compression atomization cup assembly which can make the distribution of atomized particles more uniform, make the output of atomization softer, continuous and stable, and is suitable for online use of ventilators.

The purpose of this utility model is achieved through the following technical solutions: a gas compression atomization cup assembly suitable for online use of ventilators, which includes an atomization cup body, an atomization cup cover and an atomization cup core, and an atomization cup body The bottom of the bottom is provided with a gas nozzle, and the part of the gas nozzle extending into the atomization cup is conical. The atomization cup core includes a support part and an atomization sheet arranged at the bottom of the support part. The lower part is a hollow cone, and the middle part of the atomizing sheet is provided with a hollow structure. The lower surface of the hollow structure is an impact surface. The top of the hollow cone is provided with a small hole. A vertical baffle is arranged symmetrically, and an inclined baffle is connected to the outer upper end of each vertical baffle. The inner conical surface of the hollow cone matches the outer conical surface of the gas nozzle, and the hollow cone is set on the gas nozzle. On the inner conical surface of the hollow cone, there are at least four diversion grooves extending along the busbar along the circumferential direction. The atomization cup cover is assembled on the atomization cup body, and the atomization cup core is pressed and fixed by the atomization cup cover. The inner wall of the two vertical baffles and the inner wall of the atomizing cup form an atomization chamber, the outer walls of the two vertical baffles, the lower walls of the two oblique baffles and the inner wall of the atomizing cup form a deposition chamber, and the two The upper wall of each inclined baffle, the inner wall of the atomizing cup body and the inner wall of the atomizing cup cover form a mist storage cavity, and the atomization cup cover is provided with an air inlet and an air outlet connected to the mist storage cavity.

The air inlet and the air outlet are both tubular, and the end of the air inlet and the air outlet extending into the atomization cup cover exceeds the inner wall of the atomization cup cover.

The supporting part is cylindrical, with an open cavity inside, and a through hole connecting the cavity and the external space of the supporting part is provided on the side wall of the supporting part.

The atomizing cup is composed of an upper cylindrical part and a lower conical part sequentially connected, and the axis of the gas nozzle coincides with the axis of the upper cylindrical part and the lower conical part.

The utility model has the following advantages: the utility model provides an externally connected atomization device with a three-way connection for critically ill patients who use a ventilator to assist breathing when atomization treatment is required, so that ventilation and atomization inhalation treatment can be carried out at the same time . It has the following characteristics: using the cavity structure with three gas paths, it can effectively filter out larger atomized particles, make the distribution of atomized particles more uniform, make the output of atomization softer, continuous and stable, and has a certain The mist storage space can better meet the needs of use; the cup body adopts a vertebral structure, which is convenient for more liquid medicine to flow back to the bottom of the cup in a tilted state; the cup core adopts a multi-channel diversion groove (≥ 4 flow channels) structure, which is convenient to suck out and atomize more liquid medicine when working in different inclined directions, so as to reduce the residual medicine dose; When tilted, the liquid medicine flows out from the connection port of the tee, causing waste of medicine and meeting the use requirements of the tilted state.

Description of drawings

Fig. 1 is a partial cross-sectional structural schematic diagram of the utility model

Fig. 2 is a schematic diagram of the front half section structure of the utility model

Fig. 3 is a side half cross-sectional structural schematic diagram of the utility model

Fig. 4 is the working block diagram of the utility model

In the figure, 1-atomization cup body, 2-atomization cup cover, 3-atomization cup core, 4-gas nozzle, 5-support part, 6-atomization sheet, 7-hollow cone, 8-hollow structure . -Through hole.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described, and the protection scope of the utility model is not limited to the following:

As shown in Figure 1, Figure 2 and Figure 3, it includes an atomizing cup body 1, an atomizing cup cover 2 and an atomizing cup core 3, and the bottom of the atomizing cup body 1 is provided with a gas nozzle 4, the gas nozzle 4. The part extending into the atomizing cup 1 is conical. The atomizing cup core 3 includes a supporting part 5 and an atomizing sheet 6 arranged at the bottom of the supporting part 5. The lower part of the atomizing sheet 6 is a hollow cone 7. There is a hollow structure 8 in the middle of the atomizing sheet 6. The lower surface of the hollow structure 8 is an impact surface. The top of the hollow cone 7 is provided with a small hole. The impact surface is located directly above the small hole. The left and right sides of the atomizing sheet 6 A vertical baffle 9 is arranged symmetrically at each end, two vertical baffles 9 are arranged in parallel, and the atomizing sheet 6 is perpendicular to the vertical baffle 9, and the outer upper end of each vertical baffle 9 is connected with an inclined baffle 10, The inclined baffle 10 is inclined downward along the horizontal, and the intersecting line of the inclined baffle 10 and the vertical baffle 9 is a horizontal line, the inner conical surface of the hollow cone 7 matches the outer conical surface of the gas nozzle 4, and the hollow cone 7 suits On the gas nozzle 4, at least four diversion grooves extending along the generatrix are distributed on the inner conical surface of the hollow cone 7 along the circumference, and the atomization cup cover 2 is assembled on the atomization cup body 1 by threads, and is formed by the mist The atomization cup cover 2 presses and fixes the atomization cup core 3, the lower end of the fixed atomization cup core 3 is set on the gas nozzle 4, and the upper end of the support part 5 of the fixed atomization cup core 3 is pressed by the atomization cup cover 2, and the two sides The inner wall of two vertical baffles 9 and the inner wall of atomizing cup body 1 encircle atomization cavity 11, the outer wall of two vertical baffles 9, the lower wall of two oblique baffles 10 and the inner wall of atomizing cup 1 enclose The deposition chamber 12, the upper wall of the two inclined baffles 10, the inner wall of the atomization cup body 1 and the inner wall of the atomization cup cover 2 form a mist storage chamber 13, and the atomization cup cover 2 is provided with a connected mist storage chamber Air inlet 14 and air outlet 15 of 13.

The air inlet 14 and the air outlet 15 are tubular, and the end of one end of the air inlet 14 and the air outlet 15 extending into the inside of the atomizing cup cover 2 exceeds the inner wall of the atomizing cup cover 2, and the air inlet 14 And the end of one end of the air outlet 15 protruding into the atomization cup cover 2 beyond the inner wall of the atomization cup cover 2 can effectively prevent backflow.

The supporting part 5 is cylindrical, and a cavity 16 with an upper opening is provided inside, and a through hole 17 connecting the cavity 16 and the external space of the supporting part 5 is provided on the side wall of the supporting part 5 .

The atomizing cup 1 is composed of an upper cylindrical part and a lower conical part sequentially connected, and the axis of the gas nozzle 4 coincides with the axis of the upper cylindrical part and the lower conical part.

The working process of the present utility model is as follows: as shown in Figure 4, the gas nozzle 4 is connected and assembled with the gas path of the air pressure source, the air inlet 14 of the atomizer is connected and assembled with the gas path of the ventilator through the trachea of the ventilator, and the mist The air outlet 15 of the carburetor is connected to the patient's respiratory airway through the patient's connecting trachea.

As shown in Figure 1, Figure 2, and Figure 3, the high-speed compressed air generated by the air pressure source is connected to the air pipe through the air pressure source and enters the gas nozzle 4 of the atomizer to atomize the liquid medicine. Although we can Control the MMD of the output atomized particles within a certain range, but we know that the air-flow atomized drug mist particles are normally distributed, and there are still a large number of larger atomized particles generated. The atomization chamber 11 utilizes The sprayed droplets can help filter out a large number of unqualified larger atomized particles, and the rest of the smaller atomized particles enter the deposition chamber through the gap between the vertical baffle plate of the atomization chamber 11 and the atomization cup 1 12. The lower end of the deposition chamber 12 is the liquid medicine. Due to the gravity factor, it is conducive to the further deposition of some larger atomized particles entering the deposition chamber 12. At the same time, due to the buffer of the deposition chamber 12, the air flow can be made more stable. , the distribution of atomized particles is more uniform. Under the action of the air flow, the more uniform and finer atomized particles enter the mist storage chamber 13 through the inclined baffle of the deposition chamber 12. The mist storage chamber 13 has a certain volume and has a certain volume. The mist storage space is connected to the air circuit of the ventilator and the patient through the air inlet 14 and the air outlet 15 on the atomization cup cover 2, and provides ventilation and atomized inhalation treatment for the patient at the same time. The atomizing cup body 1 adopts a vertebral structure, which is convenient for the medicine liquid to flow back to the bottom of the cup in a tilted state. When working in the opposite direction, more liquid medicine is sucked out and atomized to reduce the amount of residual medicine. The tee connected to the connecting pipeline between the ventilator and the patient has an anti-backflow structure to prevent the liquid medicine from flowing out of the tee connection port when it is over-tilted. Flow out, resulting in drug waste, can better meet the use requirements when tilting.

Claims (4)

1. A gas compression atomization cup assembly suitable for on-line use of a ventilator, characterized in that it includes an atomization cup body (1), an atomization cup cover (2) and an atomization cup core (3). The bottom of the atomization cup (1) is provided with a gas nozzle (4), the part of the gas nozzle (4) extending into the atomization cup (1) is conical, and the atomization cup core (3) It includes a supporting part (5) and an atomizing sheet (6) arranged at the bottom of the supporting part (5). The lower part of the atomizing sheet (6) is a hollow cone (7), and the middle part of the atomizing sheet (6) is provided with a hollow Structure (8), the lower surface of the hollow structure (8) is the impact surface, the top of the hollow cone (7) is provided with a small hole, the impact surface is located directly above the small hole, and the left and right ends of the atomizing sheet (6) are symmetrical A vertical baffle (9) is provided, and an oblique baffle (10) is connected to the outer upper end of each vertical baffle (9), and the inner conical surface of the hollow cone (7) is connected to the outer surface of the gas nozzle (4). The conical surface is matched, the hollow cone (7) is set on the gas nozzle (4), and the inner conical surface of the hollow cone (7) is distributed along the circumferential direction with at least four diversion grooves extending along the busbar, and the atomization cup cover (2) Assembled on the atomizing cup body (1), and the atomizing cup core (3), the inner wall of the two vertical baffles (9) and the atomizing cup body ( The inner wall of 1) encloses the atomization chamber (11), the outer wall of two vertical baffles (9), the lower wall of two oblique baffles (10) and the inner wall of the atomization cup (1) encloses a deposition chamber (12), the upper wall of the two inclined baffles (10), the inner wall of the atomization cup body (1) and the inner wall of the atomization cup cover (2) form a mist storage cavity (13), and the atomization cup cover (2 ) is provided with an air inlet (14) and an air outlet (15) connected to the mist storage chamber (13). 2. A gas compression atomization cup assembly suitable for online use of a ventilator according to claim 1, characterized in that: the air inlet (14) and the air outlet (15) are both tubular, The end of one end of the air inlet (14) and the air outlet (15) extending into the inside of the atomization cup cover (2) exceeds the inner wall of the atomization cup cover (2). 3. A gas compression atomization cup assembly suitable for online use of a ventilator according to claim 1, characterized in that: the support part (5) is cylindrical, and a container with an upper opening is provided inside it. The cavity (16), the side wall of the support part (5) is provided with a through hole (17) connecting the cavity (16) and the external space of the support part (5). 4. A gas compression atomization cup assembly suitable for on-line use of ventilators according to claim 1, characterized in that: the atomization cup (1) is sequentially connected by an upper cylindrical part and a lower conical part Composition, the axis line of the gas nozzle (4) coincides with the axis lines of the upper cylindrical part and the lower conical part.