CN101983737B - Atomization device of breathing machine - Google Patents

Abstract

An atomization device for a ventilator, the bottle body is provided with an atomizer outlet and an atomizer inlet, the bottle cap is connected with the bottle body, the bottle cap is provided with an air inlet pipe, the air inlet pipe is connected with the atomization pipe, the atomization pipe is connected with the The atomization suction pipe is connected; the air inlet pipe is provided with a reversing valve, and the control end of the reversing valve is respectively connected with the atomizer outlet and the atomizer inlet, and the atomizer outlet or the atomizer inlet is provided with a flow-limiting ring . The ventilator atomization device provided by the present invention is provided with a reversing valve on the intake pipe, so that the oxygen supply of the atomization is consistent with the breathing frequency, thereby avoiding the waste of the atomized liquid medicine and avoiding the mist The chemical solution corrodes the ventilator. The atomization device provided by the invention has low production cost, greatly reduces the burden on patients, is convenient to connect, and is simple to operate.

Description

Nebulizing device for ventilator

technical field

The invention relates to the field of medical equipment, in particular to an atomizing device for a ventilator.

Background technique

ICU patients often need nebulization therapy for various reasons, especially for many patients with artificial airway for mechanical ventilation because of asthma, thick sputum, laryngeal edema, nebulization is needed to help patients relieve airway spasm Relieve asthma, anti-inflammation, reduce mucosal edema to prevent infection, make sputum viscous and dilute for easy removal, and unblock the respiratory tract. However, at present, nebulization treatment needs to be equipped with different nebulization devices for patients with or without artificial airway, and for patients with artificial airway or mechanical ventilation. Patients who use ventilators need nebulization. The module can be realized, and it costs 30,000 to 60,000 yuan to configure an atomization module, which is expensive, and most hospitals choose to give it up. This brings great inconvenience to the atomization treatment of clinical patients, and the configuration of different atomization To adapt the device to patients at different stages of the disease, both the patient and the department will increase the expenditure, which not only increases the cost of the department, but also increases the burden on the patient.

Contents of the invention

The technical problem to be solved by the present invention is to provide an atomization device for a ventilator, which can cooperate with a ventilator to realize atomization treatment at a lower cost.

In order to solve the above technical problems, the technical solution adopted in the present invention is: a ventilator atomization device, the bottle body is provided with an atomizer outlet and an atomizer inlet, the bottle cap is connected with the bottle body, and the bottle cap is provided with Air intake pipe, the air intake pipe is connected to the atomizing pipe, and the atomizing pipe is connected to the atomizing suction pipe;

The air inlet pipe is provided with a reversing valve, and the valve core (4) is driven by the pressure difference to realize the reversing. It is used to connect the external oxygen to the air inlet pipe (5) at one position, and the liquid medicine is discharged from the bottle ( 8) Internal suction; another position to empty the external oxygen;

The control end of the reversing valve communicates with the outlet of the atomizer and the inlet of the atomizer respectively, and a restricting ring is arranged in the outlet of the atomizer or the inlet of the atomizer.

In the reversing valve, a piston is provided at both ends of the spool, and the diameter of the piston is larger than the inner diameter of the restrictor ring.

The inner and lower parts of the bottle are in the shape of an inverted cone.

The outlet of the atomizer is connected with the mouthpiece.

The outlet of the atomizer is connected with an adapter.

The difficulty of the present invention lies in the conversion between "exhale" and "inhale" of the ventilator, that is, in the pipeline, when "inhale", oxygen is provided, and when "exhale", it is the process that the ventilator discharges carbon dioxide. The external nebulizer is atomized by external oxygen, and the air supply volume of external oxygen is 10L/min, and it is difficult for the external oxygen to match the breathing frequency of the ventilator, so the nebulized liquid medicine has Part of it will be wasted. For example, in the process of "exhaling", the atomized liquid medicine will be discharged from the ventilator with the exhaled airflow, and even enter the ventilator, which may corrode the expensive ventilator, such as the expensive ventilator in the ventilator. sensor.

The ventilator atomization device provided by the present invention, by setting a reversing valve on the intake pipe, realizes that the oxygen supply of the atomization is consistent with the breathing frequency, avoids the waste of the atomized liquid medicine, and also avoids the The liquid medicine corrodes the ventilator; the invention drives the piston in the reversing valve through the pressure difference between the outlet of the nebulizer and the inlet of the nebulizer, thereby driving the movement of the spool of the reversing valve and realizing the on-off of the intake pipe; Since the diameter of the piston is larger than the inner diameter of the atomizer outlet and/or the atomizer inlet, the generated driving force is sufficient to drive the spool in the reversing valve to reversing.

The production cost of the atomization device provided by the invention is low, which is about 30 to 50 yuan based on the price of the year, which greatly reduces the burden on the patient; it is convenient to connect and easy to operate; due to the high-speed airflow atomization method, the amount of fog is large , the mist droplets are small and uniform, and the atomization efficiency of the same amount of medicinal liquid is higher than that of similar products, and the effect is good; the product of the present invention has great clinical practical value and broad market promotion prospects.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram including a reversing valve in the present invention.

Fig. 3 is a schematic structural view of the transfer joint of the present invention.

Fig. 4 is a schematic diagram of the structure of the mouth in the present invention.

Detailed ways

As shown in Figure 1, a ventilator atomization device, the bottle body 8 is provided with an atomizer outlet 1 and an atomizer inlet 7, the bottle cap 2 is connected to the bottle body 8, and the bottle cap 2 is provided with an air inlet pipe 5, The air inlet pipe 5 is connected to the atomizing pipe 6, and the atomizing pipe 6 is connected to the atomizing suction pipe 9; the external oxygen enters the atomizing pipe 6 from the air inlet pipe 5, and the atomizing pipe 6 is provided with a Through the hole, the external oxygen passes through the upper end of the atomizing suction pipe 9 at high speed, and the negative pressure generated will suck the liquid medicine out of the bottle body 8, and be atomized by the high-speed airflow, and the atomized airflow will be ejected from the outlet 1 of the atomizer.

The air inlet pipe 5 is provided with a reversing valve 3, and the control end of the reversing valve 3 is respectively connected with the atomizer outlet 1 and the atomizer inlet 7, and the atomizer outlet 1 or the atomizer inlet 7 is provided with a limiter. flow ring 10.

In the reversing valve 3 , a piston 11 is provided at both ends of the spool 4 , and the diameter of the piston 11 is larger than the inner diameter of the restrictor ring 10 . The diameter of the piston is also larger than the diameter of the spool 4, and the diameter of the air inlet pipe 5 is smaller than the diameter of the atomizer outlet 1 and the atomizer inlet 7, so only a small pressure difference and a small stroke are needed. The spool 4 can be driven to achieve reversing, one position is used to connect the intake pipe 5, and the other position allows the external oxygen to be evacuated. The method to generate a pressure difference between the atomizer outlet 1 and the atomizer inlet 7 is to set a restrictor ring 10 with a smaller diameter inside it, generally it should be set in the atomizer inlet 7, and the atomizer outlet 1 and the inner diameter of the atomizer inlet 7 are 2-2.5cm, and the inner diameter of the restrictor ring 10 adopts a diameter of 1cm, which is greater than the diameter of the tracheal intubation tube of 0.8cm, and will not affect air supply or exhaust.

The inner and lower part of the bottle body 8 is in an inverted cone shape, with a milliliter scale (8-20ml) on the outer wall, and 3 feet on the outside to keep the stability of the cup body when placed;

When in use, the device of the present invention is connected between the ventilator circuit and the patient's endotracheal tube connector. When inhaling, the oxygen from the ventilator passes through the restrictor ring 10 in the nebulizer outlet 1 or the nebulizer inlet 7, When a pressure difference is generated, part of the air flow enters the reversing valve 3, pushing the piston 11 connected to the valve core 4, the valve core 4 moves to the left, the intake pipe 5 is connected, and the external oxygen enters the atomizer from the intake pipe 5 In the tube 6, a high-speed airflow is formed above the atomization suction pipe 9, and the high-speed airflow forms a negative pressure above the atomization suction pipe 9, and the medicinal liquid is sucked out from the bottle body 8, and is atomized by the high-speed airflow. When exhaling, the negative pressure generated by the ventilator or the active exhaled airflow pushes the piston connected to the valve core 4, the valve core 4 moves to the right, the intake pipe 5 communicates with the emptying port, and the external oxygen is discharged, and the medicine The liquid cannot be atomized, thereby avoiding the waste of liquid medicine and protecting expensive equipment.

The outlet 1 of the nebulizer is connected with the mouthpiece 13; that is, it is suitable for nebulization therapy for patients without an artificial airway.

The outlet 1 of the nebulizer is connected to an adapter 12; the adapter 12 is matched with the circuit of the ventilator, so that it is suitable for nebulization therapy for patients receiving ventilator mechanical ventilation.

Claims (5)

1. an atomization device of breathing machine, it is characterized in that: bottle (8) is provided with nebulizer outlet (1) and nebulizer import (7), bottle cap (2) is connected with bottle (8), bottle cap (2) is provided with air inlet pipe (5), air inlet pipe (5) is connected with mist pipe (6), and mist pipe (6) is connected with atomization suction pipe (9);

Described air inlet pipe (5) is provided with reversal valve (3), by pressure differential spool (4), realizes commutation, a position for will external oxygen and air inlet pipe (5) connection, by medicinal liquid from the interior sucking-off of bottle (8); Another position makes external oxygen emptying;

The control end of reversal valve (3) is communicated with nebulizer outlet (1) and nebulizer import (7) respectively, in nebulizer outlet (1) or nebulizer import (7), is provided with restrictor ring (10).

2. a kind of atomization device of breathing machine according to claim 1, it is characterized in that: in described reversal valve (3), spool (4) two ends are provided with piston (11), and the diameter of piston (11) is greater than the internal diameter of restrictor ring (10).

3. a kind of atomization device of breathing machine according to claim 1, it is characterized in that: the interior bottom of described bottle (8) is in an inverted cone.

4. a kind of atomization device of breathing machine according to claim 1 is characterized in that: described nebulizer outlet (1) with contain mouth (13) and be connected.

5. a kind of atomization device of breathing machine according to claim 1 is characterized in that: described nebulizer outlet (1) is connected with adaptor (12).

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