A nebulizer module for a breathing machine, breathing machine

Abstract

This invention belongs to the field of ventilators, particularly non-invasive ventilators, and specifically relates to a ventilator nebulization module, including an inspiratory tubing and a nebulizer. One end of the inspiratory tubing is connected to an external patient connection port, and the other end is connected to the external ventilator body. A humidifier and a water collection cup are connected to the inspiratory tubing, and the outlet of the nebulizer is connected to the water collection cup. The nebulizer includes a bottle, a main body connected to the bottle, and a cap detachably connected to the main body. This module can quickly output a mist without affecting the gas output balance of the ventilator's inspiratory tubing. This invention also discloses a ventilator.

Description

Technical Field

[0001] This invention belongs to the field of ventilators, specifically relating to a ventilator nebulization module and a ventilator. Background Technology

[0002] ZL201520627367.6 discloses a nebulizer for drug delivery in a ventilator's airway. The nebulizer includes an airflow conduit connecting the ventilator main unit and a patient connection port. A drug delivery canister is mounted on the airflow conduit, and an nebulizing element is positioned between the canister and the conduit. The nebulizing element consists of a microporous sheet and an annular oscillating plate disposed on the microporous sheet. Micropores are formed on the microporous sheet in the center of the annular oscillating plate, and the nebulizing element is powered by the ventilator main unit. This nebulizer can atomize liquid medication into micron-sized molecular particles, which can be inhaled into the patient's airway along with the air, and may even enter the alveoli, directly reaching respiratory lesions, treating various respiratory diseases with minimal dosage while the patient sleeps.

[0003] The problem with this case is that the atomization speed needs to be improved and the atomization dosage is not large.

[0004] Adding a spray device directly to the existing pipeline would make it difficult for the air pressure in the ventilator's inhalation tubing to reach the expected stability.

[0005] The technical problem to be solved in this case is: how to reduce the impact on the working gas balance of the ventilator while improving the nebulization speed. Summary of the Invention

[0006] The purpose of this invention is to provide a nebulizer module that can rapidly output a spray without affecting the gas output balance of the ventilator's inhalation tubing.

[0007] In addition, the present invention also discloses a ventilator.

[0008] The technical solution of this invention is as follows:

[0009] A ventilator nebulization module includes an inhalation tubing and a nebulizer, wherein one end of the inhalation tubing is connected to an external patient connection port and the other end is connected to the external ventilator body.

[0010] The air intake pipe is connected to a humidifier and a water collection cup, and the water collection cup is connected to the outlet of the atomizer;

[0011] The atomizer includes a bottle, a main body connected to the bottle, and a cover detachably connected to the main body. The upper part of the cover is an output port, the lower part of the cover is a spray port, the interior of the cover is an atomizing chamber, the atomizing chamber is connected to the output port and the spray port, and the lower surface of the cover is a conical surface.

[0012] The lower part of the main body is detachably connected to the bottle body. The upper part of the main body has a cone shape. The upper surface of the main body is also provided with a liquid collection groove located at the bottom edge of the cone shape. The liquid collection groove is provided with several air jets. The main body is provided with a compressed gas pipe communicating with the air jets. The compressed gas pipe is connected to the compressed gas source of the external ventilator body. The compressed gas pipe is provided with a solenoid valve. The surface of the cone shape is provided with several liquid outlets. The liquid outlets are connected to a suction tube extending into the bottle body. There is a mist outlet gap between the cone shape and the cone surface.

[0013] In the aforementioned ventilator nebulization module, the mist outlet gap is 1-3 mm.

[0014] In the aforementioned nebulizer module, there are four air outlets, and the surface of the cone is provided with four protruding ridges extending from the thicker end of the cone to the thinner end; the distance between the protruding ridges and the cone surface gradually increases from the thicker end of the cone to the thinner end.

[0015] In the aforementioned ventilator nebulization module, a heating module is provided inside the cover, which is used to heat the nebulization chamber and the conical surface.

[0016] In the aforementioned nebulizer module, the main body, bottle, and cap are connected by threads.

[0017] Meanwhile, the present invention also discloses a ventilator, including a ventilator body and a patient connection port, wherein the ventilator body and the patient connection port are connected by any of the above-mentioned inhalation and expiration pipes; the expiration pipe is provided with a water collection cup;

[0018] The main body of the ventilator is equipped with a compressed air source, an oxygen source, and a gas mixing module. The compressed air source and the oxygen source are connected to the gas mixing module, and the gas mixing module is connected to the input end of the inhalation pipe.

[0019] In the aforementioned ventilator, the control method is as follows:

[0020] Before the gas is introduced into the inhalation tube, the atomizer starts working, introducing a spray into the water cup on the inhalation tube;

[0021] The atomizer stops working when gas is introduced into the inhalation channel.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention uses the air source of the ventilator itself as the nebulizing air source, and adds the spray into the water collection cup. The water collection cup can be used as a buffer to inject the spray when the inhalation tube is not working. This can maintain the air pressure balance of the inhalation tube when it is working, and achieve the dual purpose of increasing the spray volume and ensuring the normal operation of the ventilator. Attached Figure Description

[0024] Figure 1 These are schematic diagrams of the structures in Examples 1 and 2;

[0025] Figure 2 This is the front view of Example 1;

[0026] Figure 3 This is a cross-sectional view of the main body and cover assembly of Example 1;

[0027] Figure 4 This is a front view of the main body of Example 1;

[0028] Figure 5 This is a cross-sectional view of the cover of Example 1. Detailed Implementation

[0029] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not constitute any limitation on the present invention.

[0030] Example 1:

[0031] refer to Figure 1-5 A ventilator nebulization module includes an inhalation tubing 1 and a nebulizer 2, wherein one end of the inhalation tubing 1 is connected to an external patient connection port 3 and the other end is connected to an external ventilator body 4.

[0032] The air intake pipe 1 is connected to a humidifier 11 and a water collection cup 12, and the water collection cup 12 is connected to the outlet of the atomizer 2;

[0033] The atomizer 2 includes a bottle body 21, a main body 22 connected to the bottle body 21, and a cover 23 detachably connected to the main body 22. The upper part of the cover 23 is an output port 231, the lower part of the cover 23 is a spray port 232, the interior of the cover 23 is an atomizing chamber 233, the atomizing chamber 233 is connected to the output port 231 and the spray port 232, and the lower surface of the cover 23 is a conical surface 234. The outlet of the atomizer 2 is the output port 231.

[0034] The lower part of the main body 22 is detachably connected to the bottle body 21. The upper part of the main body 22 has a conical body 221. The upper surface of the main body 22 is also provided with a liquid collection groove 222 located at the bottom edge of the conical body 221. The liquid collection groove 222 is provided with a plurality of air jets 223. The main body 22 is provided with a compressed gas pipe 224 communicating with the air jets 223. The compressed gas pipe 224 is connected to the compressed gas source 41 of the external ventilator main body 4. The compressed gas pipe 224 is provided with a solenoid valve 225. The surface of the conical body 221 is provided with a plurality of liquid outlets 226. The liquid outlets 226 are connected to a suction pipe 227 extending into the bottle body 21. There is a mist outlet gap 228 between the conical body 221 and the conical surface 234.

[0035] During operation, the bottle 21 contains liquid medicine. The nozzle 223 sprays gas upward along the gap. The gas creates a negative pressure on the surface of the cone 221. The liquid medicine is output from the outlet 226 and mixed with the compressed gas. It is then input from the spray nozzle 232 into the atomizing chamber 233 and output from the atomizing chamber 233 to the outlet 231, reaching the water collection cup 12.

[0036] This atomizer 2 operates intermittently, with a relatively small spray volume each time. Therefore, using compressed air as the air source is perfectly acceptable and will not have a significant impact on the oxygen concentration or air pressure of the inhalation pipe 1.

[0037] The humidifier 11 is located on one side near the main body of the ventilator 4.

[0038] The purpose of the liquid collection tank 222 is to collect the liquid in the atomizing chamber 233 and the gap into the liquid collection tank 222. As the jet nozzle 223 works intermittently, the accumulated liquid is atomized again, thus preventing liquid accumulation in the atomizer 2.

[0039] Preferably, the mist outlet gap 228 is 1-3 mm.

[0040] To improve the atomization effect, there are four jet nozzles 223, and the surface of the cone 221 is provided with four protruding ridges 229 extending from the thick end to the thin end of the cone 221; the distance between the protruding ridges 229 and the cone surface 234 gradually increases from the thick end to the thin end of the cone 221.

[0041] In other words, near the collection tank 222, the gas flow is isolated into four relatively independent gas channels. These channels converge at the top of the conical surface 234 and are then ejected from the spray nozzle 232 into the atomizing chamber 233. This design improves overall airflow stability and enhances atomization.

[0042] Preferably, the cover 23 is provided with a heating module 235, which is used to heat the atomizing chamber 233 and the conical surface 234. The heating module 235 imparts a certain temperature to the spray, preventing it from turning into settled droplets too quickly in the water collection cup 12, and keeping it suspended before the next air supply from the inhalation pipe 1, thereby improving the effectiveness of drug administration.

[0043] Preferably, the main body 22, the bottle body 21, and the cap body 23 are connected by threads.

[0044] Example 2

[0045] refer to Figure 1 A ventilator includes a ventilator body 4 and a patient connection port 3. The ventilator body 4 and the patient connection port 3 are connected by an inspiratory tube 1 and an expiratory tube 5 as described in Embodiment 1. The expiratory tube 5 is provided with a water collection cup. The patient connection port 3 is a commonly used Y-shaped connector. The inspiratory tube 1 and the expiratory tube 5 are generally corrugated flexible tubes. For simplicity, the figures in this embodiment are represented by straight lines.

[0046] The main body 4 of the ventilator is equipped with a compressed air source 41, an oxygen source 42, and a gas mixing module 43. The compressed air source 41 and the oxygen source 42 are connected to the gas mixing module 43, and the gas mixing module 43 is connected to the input end of the inhalation pipe 1.

[0047] The control method for this ventilator is as follows:

[0048] Before gas is introduced into the inhalation pipe 1, the atomizer 2 starts working and introduces spray into the water cup 12 on the inhalation pipe 1;

[0049] When gas is introduced into the inhalation pipe 1, the atomizer 2 stops working.

[0050] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A ventilator, comprising a ventilator nebulization module, a ventilator body, and a patient connection port, wherein the ventilator body and the patient connection port are connected via the ventilator nebulization module; a water collection cup is provided on the expiratory tubing; The main body of the ventilator is equipped with a compressed air source, an oxygen source, and a gas mixing module. The compressed air source and the oxygen source are connected to the gas mixing module, and the gas mixing module is connected to the input end of the inhalation tube. The control method for this ventilator is as follows: Before the gas is introduced into the inhalation tube, the atomizer starts working, introducing a spray into the water cup on the inhalation tube; The atomizer stops working when gas is introduced into the inhalation channel; The ventilator nebulization module includes an inhalation tubing and a nebulizer. One end of the inhalation tubing is connected to the external patient connection port, and the other end is connected to the external ventilator body. The air intake pipe is connected to a humidifier and a water collection cup, and the water collection cup is connected to the outlet of the atomizer; The atomizer includes a bottle, a main body connected to the bottle, and a cover detachably connected to the main body. The upper part of the cover is an output port, the lower part of the cover is a spray port, the interior of the cover is an atomizing chamber, the atomizing chamber is connected to the output port and the spray port, and the lower surface of the cover is a conical surface. The lower part of the main body is detachably connected to the bottle body. The upper part of the main body has a cone shape. The upper surface of the main body is also provided with a liquid collection groove located at the bottom edge of the cone shape. The liquid collection groove is provided with several air jets. The main body is provided with a compressed gas pipe communicating with the air jets. The compressed gas pipe is connected to the compressed gas source of the external ventilator body. The compressed gas pipe is provided with a solenoid valve. The surface of the cone shape is provided with several liquid outlets. The liquid outlets are connected to a suction tube extending into the bottle body. There is a mist outlet gap between the cone shape and the cone surface. The cover is equipped with a heating module, which is used to heat up the atomizing chamber and the conical surface.

2. The ventilator according to claim 1, characterized in that, The mist outlet gap is 1-3mm.

3. The ventilator according to claim 1, characterized in that, There are four air nozzles, and the surface of the cone is provided with a convex ridge extending from the thicker end of the cone to the thinner end; the distance between the convex ridge and the cone surface gradually increases from the thicker end of the cone to the thinner end.

4. The ventilator according to claim 1, characterized in that, The main body, bottle body, and cap body are connected by threads.

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