CN203954409U - A kind of with/without wound mechanical ventilation gas humidifying heating system - Google Patents

Abstract

The utility model discloses a gas humidification and heating system for mechanical ventilation with/without invasiveness, which comprises: a ventilator, which is used to press breathing gas into the patient's lungs to assist and/or control the patient's respiration; The gas outlet port and the return port of the gas; the humidification and heating device is used to heat the liquid to evaporate and ultrasonically atomize, generate water vapor and atomized gas, and combine the water vapor and atomized gas with the breathing gas sent by the ventilator Mixed to form a mixed gas, and according to the preset temperature and humidity parameters of the gas entering the patient's lungs, the heating evaporation temperature of the liquid, the ultrasonic atomization rate and the heating temperature of the pipeline for transporting the mixed gas are adjusted accordingly. The temperature device is provided with a side port and a central port; it aims to solve the problem of uncontrollable temperature and humidity of the existing invasive/non-invasive mechanical ventilation gas.

Description

A gas humidification and warming system for mechanical ventilation with/without invasiveness

technical field

The utility model relates to the field of medical equipment, in particular to a mechanical ventilation gas humidification and heating system with adjustable gas temperature and humidity.

Background technique

During invasive/non-invasive mechanical ventilation, sufficient humidity and appropriate temperature must be ensured for the gas entering the patient's lungs, but at present, sufficient humidification and appropriate temperature of invasive/non-invasive mechanical ventilation gas cannot be guaranteed. The gas humidification and warming method currently used is: mechanical ventilation gas with/without invasiveness passes through the heated liquid surface, mixes with heated and evaporated water vapor, installs a heating resistance wire in the subsequent breathing gas delivery pipeline, and passes water vapor to Increase the humidity and temperature of the gas, and use the resistance wire to heat the breathing gas in the pipeline to ensure the temperature. However, the amount of water vapor produced after heating is fixed. In the process of invasive/non-invasive mechanical ventilation, due to the different efforts of the patient's spontaneous breathing, the tidal volume is different each time, so the water vapor mixed with each tidal volume There is a change in the volume ratio, and its humidity cannot ensure sufficient humidification. Moreover, the heat generated by the pipeline heating resistance wire is fixed, and when the tidal volume changes, the temperature of the gas also fluctuates.

Therefore, the prior art still needs to be improved and developed. the

Utility model content

In view of the above-mentioned deficiencies in the prior art, the utility model provides a humidification and heating system for gas for mechanical ventilation with/without invasiveness, aiming at solving the problem of uncontrollable temperature and humidity of gas for mechanical ventilation with/without invasiveness.

The technical scheme of the utility model is as follows:

A gas humidification and warming system for mechanical ventilation with/without invasiveness, comprising:

A ventilator, which is used to press breathing gas into the patient's lungs to assist and/or control the patient's breathing, and the ventilator is provided with an outlet port and a circuit port for entering and exiting the gas;

The humidification and heating device is used to heat, evaporate and ultrasonically atomize the liquid to generate water vapor and atomized gas, and mix the water vapor and atomized gas with the breathing gas sent by the ventilator to form a mixed gas, and according to the preset The temperature and humidity parameters of the gas entering the patient's lungs are set, and the heating evaporation temperature of the liquid, the ultrasonic atomization rate and the heating temperature of the pipeline for transporting the mixed gas are adjusted accordingly. The humidification and heating device is provided with a side port and the central port;

A Y-shaped connecting tube for connecting a breathing mask or an endotracheal tube, and the Y-shaped connecting tube is provided with opening one, opening two and opening three;

Wherein, the outlet port of the ventilator communicates with the side port of the humidification and heating device through a first connecting pipe, and the central port of the humidification and heating device communicates with the opening of the Y-shaped connecting pipe. The second connecting pipe is connected, and the second opening of the Y-shaped connecting pipe is connected with the circuit port of the ventilator through the third connecting pipe.

The humidification and warming system for gas with/without invasive mechanical ventilation, wherein the humidification and warming device includes:

The atomization tank is used to hold the atomized liquid, and is also used to mix the water vapor generated by heating and evaporating the atomized liquid and the atomized gas formed by atomization with the breathing gas sent by the ventilator;

The heater is used to heat and evaporate the atomized liquid to generate water vapor, and heat the atomized liquid to a preset target temperature, and the heater is arranged at the bottom of the atomized tank;

An ultrasonic atomization transducer, used for ultrasonically atomizing the heated atomized liquid to form an atomized gas, the ultrasonic atomization transducer being arranged in the atomization tank;

A sealing cover is arranged on the upper end of the atomization tank, and the side port and the central port are arranged on the upper end of the sealing cover.

The gas humidification and warming system for invasive/non-invasive mechanical ventilation, wherein, a medicine cup is also arranged in the atomization tank, which is used to hold the medicine needed by the patient, and heat, atomize and mix the medicine in the mixing chamber. inside the gas.

In the gas humidification and warming system for invasive/non-invasive mechanical ventilation, a temperature and humidity sensor is provided at one opening of the Y-shaped connecting tube for real-time detection of the temperature and humidity of the gas entering the patient's lungs, and The detected gas temperature and humidity data are fed back to the humidification and heating device, and the humidification and heating device adjusts the heating and evaporation temperature of the atomized liquid, the ultrasonic atomization rate and the transport mixing in real time according to the fed back gas temperature and humidity data The heating temperature of the gas pipeline.

The gas humidification and warming system for invasive/non-invasive mechanical ventilation, wherein the second connecting pipe is a connecting pipe with a heating wire inside, which is used to ensure that the temperature of the mixed gas is kept constant during transportation in the second connecting pipe, And it is used to heat the atomized gas in the mixed gas and convert it into water vapor to ensure the full humidification of the mixed gas.

In the gas humidification and heating system for invasive/non-invasive mechanical ventilation, a waste liquid collection cup is arranged at the central port in the sealed cover to collect the waste liquid flowing back in the second connecting pipe. The liquid flows back through the central port into the waste collection cup.

In the gas humidification and warming system for invasive/non-invasive mechanical ventilation, a respiratory mask or an endotracheal tube is connected to the opening three of the Y-shaped connecting tube.

The beneficial effects of the utility model:

Compared with the prior art, the utility model provides a kind of humidification and heating system for mechanical ventilation gas with/without invasiveness, by heating and evaporating the breathing gas produced by the ventilator and the water produced by the humidification and heating device and ultrasonic atomization The steam and atomized gas are uniformly mixed to form a mixed gas for the patient to breathe, and the heating and evaporation temperature of the atomized liquid, the ultrasonic atomization rate and the delivery mixture are adjusted in real time according to the gas temperature and humidity data fed back by the temperature and humidity sensor in real time The heating temperature of the gas pipeline so that the mixed gas meets the temperature and humidity requirements of the gas entering the patient's lungs at the patient's breathing end. Help the patient to moisten the airway, and to dilute and clear airway secretions.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model with/without invasive mechanical ventilation gas humidification and heating system;

Fig. 2 is an exploded view of the humidification and heating device in the gas humidification and heating system for invasive/non-invasive mechanical ventilation of the present invention.

Detailed ways

The utility model provides a gas humidification and heating system for mechanical ventilation with/without invasiveness. In order to make the purpose, technical solution and effect of the utility model clearer and clearer, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1, Fig. 1 is a schematic structural diagram of the gas humidification and heating system for invasive/non-invasive mechanical ventilation of the present invention.

As shown in FIG. 1 , the gas humidification and warming system for invasive/non-invasive mechanical ventilation includes: a ventilator 100 , a humidification and warming device 200 , and a Y-shaped connecting tube 300 .

Specifically, the ventilator 100 is used to press breathing gas (usually oxygen for the patient to breathe) into the patient's lungs to assist and/or control the patient's breathing, and the ventilator 100 is provided with an air outlet port 110 for entering and exiting the gas and Loopback port 120.

Wherein, the air outlet port 110 is used to send out the compressed breathing gas, and the circuit port 120 is used to recover the exhaust gas exhaled by the patient to form a breathing circuit.

The humidification and heating device 200 is used to heat, vaporize and ultrasonically atomize the liquid (that is, the atomized liquid) to generate water vapor and atomized gas, and combine the water vapor and atomized gas with the breathing gas sent by the ventilator 100 Mix to form a mixed gas, and according to the preset temperature and humidity parameters of the gas entering the patient's lungs, adjust the heating evaporation temperature of the liquid, the ultrasonic atomization rate and the heating temperature of the pipeline for transporting the mixed gas. The temperature device 200 is provided with a side port 210 and a central port 220 .

Among them, the preset temperature and humidity parameters of the gas entering the patient's lungs are custom-set according to the tidal volume of the patient's breathing. In clinical medicine, doctors or medical staff make corresponding settings according to the actual breathing conditions of the patient. , which will not be repeated here.

As shown in Fig. 2, Fig. 2 is an exploded view of the humidification and heating device in the humidification and heating system of the present invention with/without invasive mechanical ventilation, and the humidification and heating device 200 specifically includes:

The atomization tank 201 is used to hold the atomized liquid, and is also used to mix the water vapor generated by heating and evaporating the atomized liquid and the atomized gas formed by atomization with the breathing gas sent by the ventilator.

The heater 202 is used for heating and evaporating the atomized liquid to generate water vapor, and heating the atomized liquid to a preset target temperature.

The ultrasonic atomization transducing sheet 203 is used for ultrasonically atomizing the heated atomized liquid to form atomized gas.

The sealing cover 204 is set on the upper end of the atomization tank 201, the side port 210 and the central port 220 are arranged on the sealing cover 204, and the sealing cover shown in FIG. Sealing cap for port 220.

Wherein, the heater 202 is arranged at the bottom of the atomization tank 201 , and the ultrasonic atomization transducing sheet 203 is arranged in the atomization tank 201 .

Furthermore, a medicine cup 205 is also provided in the atomizer tank 201, which is used to accommodate the treatment medicine needed by the patient (such as dilute expectorant, airway anti-inflammation and other medicines), and heat, atomize and mix the medicine in the mixing chamber. In the gas, in essence, the drug is first heated together with the nebulized liquid, atomized and mixed, and then mixed with the breathing gas to form a mixed gas. Cooperating with drug therapy, it can not only assist and/or control the patient's breathing, but also help the patient to humidify the airway, as well as dilute and clean the airway secretions.

Correspondingly, an injection and dosing hole 230 is provided on the sealing cover, and the syringe carrying the medicine can be filled into the medicine cup 205 through the injection and dosing hole 230 .

The Y-shaped connecting tube 300 is used to connect a breathing mask or an endotracheal tube. The Y-shaped connecting tube 300 is provided with opening one 310, opening two 320 and opening three 330. In the ICU (Intensive Care Unit), due to patients Respiratory failure occurs and normal breathing activities cannot be maintained. Endotracheal intubation and invasive mechanical ventilation are required to ensure that the patient maintains ventilation. For ordinary patients, breathing masks and non-invasive mechanical ventilation are sufficient.

Wherein, the outlet port 110 of the ventilator 100 communicates with the side port 210 of the humidification and heating device 200 through a first connecting tube 410, and the central port 220 of the humidification and heating device 200 communicates with the Y The first opening 310 of the Y-shaped connecting tube 300 is connected through the second connecting tube 420 , and the second opening 320 of the Y-shaped connecting tube 300 is connected with the circuit port 120 of the ventilator 100 through the third connecting tube 430 .

In this embodiment, the first connecting pipe, the second connecting pipe and the third connecting pipe can use corrugated plastic hoses, which are commonly used connecting pipes in the respiratory system, and the price is relatively low. After each use of the breathing equipment, In order to avoid bacterial infection, the corresponding connecting pipes need to be replaced, so that the replacement cost will not be too high. However, the first connecting tube here does not produce condensed water in the pipeline when the breathing gas is transported, and the exhaust gas exhaled by the patient does not pass through the pipeline. Replacement, just periodically.

In this embodiment, the assembly of the gas humidification and heating system for invasive/non-invasive mechanical ventilation is not complicated, and each device is independent, and only needs to be spliced through connecting pipes to obtain an overall complete circulation ventilation system , to ensure the ventilation function of patients with respiratory failure, and it is also very convenient to remove, just remove each connecting tube.

In this embodiment, the first opening 310 of the Y-shaped connecting pipe 300 is provided with a temperature and humidity sensor 500 for real-time detection of the temperature and humidity of the gas entering the lungs of the patient, and feedback of the detected gas temperature and humidity data. To the humidification and heating device, the humidification and heating device adjusts the heating and evaporating temperature of the atomized liquid, the ultrasonic atomization rate and the heating temperature of the pipeline for transporting the mixed gas in real time according to the feedback data.

That is to say, the temperature and humidity sensor 500 installed at the proximal end of the patient's breath detects the temperature and humidity of the patient's breath all the time, and feeds back to the humidification and heating device in time. Real-time adjustment of the heating evaporation temperature of the nebulized liquid, the ultrasonic atomization rate and the heating temperature of the pipeline for conveying the mixed gas, so as to control the temperature and humidity of the mixed gas so that the mixed gas meets the temperature of the gas entering the patient's lungs at the patient's respiratory end and humidity requirements, so as to ensure sufficient humidification of the airway, which is conducive to the dilution, drainage and removal of airway secretions.

It can be seen from the above that the utility model does not directly control the temperature and humidity of the mixed gas, but controls the heating and evaporation temperature of the atomized liquid, the ultrasonic atomization rate and the heating temperature of the pipeline for transporting the mixed gas through a humidification and heating device, so as to This indirect method controls the temperature and humidity of the mixed gas.

In this embodiment, the second connecting pipe 420 is a connecting pipe in which a heating wire is arranged, the purpose of which is to ensure that the temperature of the mixed gas is constant during the transportation process in the second connecting pipe, and to keep the atomized gas in the mixed gas It is converted into water vapor by heating to ensure the full humidification of the mixed gas. In this embodiment, the second connecting pipe 420 is subjected to pipeline insulation measures, which can avoid the generation of condensed water in the gas delivery pipeline (condensed water enters the patient's lungs through the respiratory pipeline, which will cause great damage to human body functions, and the condensed water It is generated on the inner wall of the gas delivery pipeline due to the temperature difference between the inside and outside of the delivery gas pipeline), reducing the humidity of the mixed gas.

In this embodiment, a waste liquid collection cup 206 is provided at the central port 220 in the sealing cover 204 to collect the waste liquid flowing back in the second connecting pipe 420, and the waste liquid flows back through the central port 220 to waste collection cup (not shown).

In this embodiment, the opening three 330 of the Y-shaped connecting tube 300 is connected with a breathing mask or a tracheal intubation tube, and for invasive mechanical ventilation, the opening three 330 of the Y-shaped connecting tube 300 is connected with a tracheal intubation ( not shown in the figure), and for non-invasive mechanical ventilation, a respiratory mask (oronasal mask, nasal mask, full-face mask, etc.) is connected to the opening three 330 of the Y-shaped connecting tube 300.

Gas circulation in the breathing tube is as follows:

When the patient inhales, the respiratory gas output from the outlet port of the ventilator enters the humidification and heating device through the first connecting tube, and intersects and mixes with the water vapor and atomized gas generated in the humidification and heating device to form a mixed gas. Then the mixed gas enters the patient's lungs through the second connecting tube, Y-shaped connecting tube and endotracheal tube (breathing mask) for inhalation;

When the patient exhales, the exhaust gas (mainly carbon dioxide) exhaled from the patient's lungs is sent to the circuit port of the ventilator through the tracheal intubation (breathing mask), Y-shaped connecting tube and the third connecting tube in sequence.

This process is repeated and cycled to completely simulate the autonomous breathing environment of the human body.

To sum up, the utility model provides a kind of humidification and heating system for mechanical ventilation gas with/without invasiveness. The atomized gas is uniformly mixed to form a mixed gas to form a mixed gas for the patient to breathe, and the heating and evaporation temperature of the atomized liquid, the ultrasonic atomization rate and the pipeline for transporting the mixed gas are adjusted in real time according to the gas temperature and humidity data fed back by the temperature and humidity sensor in real time The heating temperature is to make the mixed gas meet the temperature and humidity requirements of the patient's breathing end for the gas entering the patient's lungs. Help the patient to moisten the airway, and to dilute and clear airway secretions.

It should be understood that the application of the present utility model is not limited to the above examples, and those skilled in the art can improve or change according to the above description, and all these improvements and changes should belong to the protection of the appended claims of the present utility model scope.

Claims (7)

1. A system with/without invasive mechanical ventilation gas humidification and heating, characterized in that it comprises: A ventilator, which is used to press breathing gas into the patient's lungs to assist and/or control the patient's breathing, and the ventilator is provided with an outlet port and a circuit port for entering and exiting the gas; The humidification and heating device is used to heat, evaporate and ultrasonically atomize the liquid to generate water vapor and atomized gas, and mix the water vapor and atomized gas with the breathing gas sent by the ventilator to form a mixed gas, and according to the preset The temperature and humidity parameters of the gas entering the patient's lungs are set, and the heating and evaporation temperature of the liquid, the ultrasonic atomization rate and the heating temperature of the pipeline for transporting the mixed gas are adjusted accordingly. The humidification and heating device is provided with a side port and the central port; A Y-shaped connecting tube for connecting a breathing mask or an endotracheal tube, and the Y-shaped connecting tube is provided with opening one, opening two and opening three; Wherein, the outlet port of the ventilator communicates with the side port of the humidification and heating device through a first connecting pipe, and the central port of the humidification and heating device communicates with the opening of the Y-shaped connecting pipe. The second connecting pipe is connected, and the second opening of the Y-shaped connecting pipe is connected with the circuit port of the ventilator through the third connecting pipe. 2. The system with/without invasive mechanical ventilation gas humidification and heating according to claim 1, wherein the humidification and heating device comprises: The atomization tank is used to hold the atomized liquid, and is also used to mix the water vapor generated by heating and evaporating the atomized liquid and the atomized gas formed by atomization with the breathing gas sent by the ventilator; The heater is used to heat and evaporate the atomized liquid to generate water vapor, and heat the atomized liquid to a preset target temperature, and the heater is arranged at the bottom of the atomized tank; An ultrasonic atomization transducer, used for ultrasonically atomizing the heated atomized liquid to form an atomized gas, the ultrasonic atomization transducer being arranged in the atomization tank; A sealing cover is arranged on the upper end of the atomization tank, and the side port and the central port are arranged on the upper end of the sealing cover. 3. The gas humidification and warming system with/without invasive mechanical ventilation according to claim 2, characterized in that, a medicine cup is also arranged in the atomization tank for containing the therapeutic medicine required by the patient, and the The medicine is heated, atomized and mixed in the mixed gas. 4. The gas humidification and warming system for/without invasive mechanical ventilation according to claim 1, characterized in that a temperature and humidity sensor is provided at one opening of the Y-shaped connecting tube for real-time detection of gas entering the patient's lungs. The temperature and humidity of the gas, and the detected gas temperature and humidity data are fed back to the humidification and heating device, and the humidification and heating device adjusts the heating and evaporation temperature of the atomized liquid in real time according to the fed back gas temperature and humidity data , ultrasonic atomization rate and the heating temperature of the pipeline for transporting the mixed gas. 5. The gas humidification and warming system for/without invasive mechanical ventilation according to claim 4, characterized in that, the second connecting pipe is a connecting pipe with a heating wire inside it, for ensuring that the mixed gas is in the second The temperature in the connecting pipe is constant during the transportation process, and it is used to heat the atomized gas in the mixed gas and convert it into water vapor, so as to ensure the sufficient humidification of the mixed gas. 6. The system according to claim 2, characterized in that, a waste liquid collection cup is arranged at the central port in the sealed cover for collecting waste liquid in the second connecting pipe. Returning waste liquid, which flows back into the waste liquid collection cup through the central port. 7. The gas humidification and warming system for invasive/non-invasive mechanical ventilation according to claim 1, characterized in that a breathing mask or an endotracheal tube is connected to the opening three of the Y-shaped connecting tube.