CN104436386A - Device for assisting respiration aerosol gas and method for regulating respiration aerosol gas - Google Patents

Abstract

The invention discloses a device for assisting breathing aerosol gas and a method for regulating breathing aerosol gas. When the device is used to inhale, the generation of atomized gas is triggered, so that the atomized gas and the absorbed air enter the respiratory tract synchronously; A one-way exhalation valve is set to adjust the exhalation resistance through the one-way exhalation valve, generate positive end-expiratory pressure, prolong the exhalation time, ensure the time of aerosol gas in the respiratory tract, and facilitate the absorption of aerosol gas. At the same time, it is also conducive to promoting the full exhalation of lung gas; an inspiratory flow restrictor is installed at the air intake connection port, and the ratio of the sprayed aerosol gas to non-aerosol gas is adjusted through the inspiratory flow restrictor to ensure that the inspiratory flow rate is appropriate and the inhalation The breathing time is long enough to ensure that the aerosol drug is fully inhaled into the lungs and exerts its curative effect.

Description

Device for assisting breathing aerosol gas and method for regulating breathing aerosol gas

technical field

The invention relates to a breathing assistance device, in particular to a device for assisting breathing aerosol gas and a method for regulating breathing aerosol gas.

Background technique

Aerosol inhalation therapy is one of the common treatment methods in respiratory department.

During aerosol inhalation therapy, the aerosol gas inhaled into the lungs along with the air flow must reach the small airways to exert its curative effect. However, there is an anatomical dead space in the respiratory tract, which refers to the respiratory tract between the oral cavity and the respiratory bronchioles. The gas capacity of the anatomical dead space of a normal adult is 140ml, and the gas capacity refers to the volume of gas that can be accommodated. When inhaling, the gas passes through the anatomical dead space and then reaches the respiratory bronchioles and alveoli. When exhaling, the gas in the anatomical dead space is exhaled first, and then the gas from the bronchioles and alveoli.

However, during aerosol inhalation therapy, only the aerosol drug that enters the bronchioles and alveoli and is deposited in the small airways and alveoli can play a role. In the actual aerosol inhalation treatment, the aerosol drugs that have not yet entered the bronchioles and alveoli and enter the anatomical dead space with inhalation are discharged through exhalation without exerting their effect, and the proportion of aerosol drugs entering the bronchioles and alveoli is relatively small, making the The therapeutic effect of aerosol inhalation cannot be optimized.

It can be seen from the above that the aerosol inhalation treatment in the prior art cannot ensure the full absorption of the aerosol medicine, and there is a lack of an effective device for assisting breathing aerosol gas. Therefore, the prior art still needs to be improved and developed.

Contents of the invention

In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a device for assisting respiration of aerosol gas and a method for regulating respiration aerosol gas, aiming at improving the concentration of aerosol medicine in the bronchioles and alveoli through the device for assisting respiration of aerosol gas. Deposition rate, control the inhalation of aerosol gas into the respiratory tract at the beginning of inhalation, and ensure that the task of a single inhalation of aerosol gas is completed before the inhalation volume is still 140ml.

For reaching above-mentioned purpose, the present invention provides following technical scheme:

Devices that aid in breathing aerosol gases, including:

The pipeline and the inlet connection port for connecting the aerosol injection device, the exhalation port for discharging respiratory gas and the contact exchange port for contacting and exchanging gas with the respiratory tract are arranged on the pipeline;

A one-way exhalation valve set at the exhalation port to adjust the exhalation resistance;

An inhalation restrictor arranged at the air inlet connection port for adjusting the ratio of sprayed aerosol gas to non-aerosol gas when the air inlet connection port is connected to an aerosol injection device.

The device for assisting breathing of aerosol gas, wherein the pipeline is a transparent pipeline.

The device for assisting respiration of aerosol gas further includes: a trigger unit for triggering and controlling the aerosol injection device to spray aerosol when the pipeline is under negative pressure.

The device for assisting respiration of aerosol gas further includes: an aerosol injection device arranged at the air intake connection port.

The device for assisting in breathing aerosol gas, wherein the aerosol injection device is provided with an aerosol nozzle.

A method for regulating breathing aerosol gas using a device for assisting breathing aerosol gas, comprising the following steps:

A. When the respirator inhales, control the aerosol injection device to spray aerosol, and control the inspiratory flow rate by adjusting the inspiratory flow restrictor to make the pipeline generate negative pressure;

B. Control the aerosol injection device to stop spraying aerosol after the breather inhales a certain volume of gas;

C. When the respirator exhales, the exhalation resistance is adjusted through the one-way exhalation valve, so that the pipeline generates a positive end-expiratory pressure.

The method for adjusting respiratory aerosol gas, wherein, before step A, further includes: pre-fixing the aerosol injection device containing the liquid medicine on the air inlet connection port.

In the method for adjusting respiratory aerosol gas, step A further includes: adjusting the ratio of aerosol gas and non-aerosol gas sprayed by the aerosol injection device.

Compared with the prior art, the device for assisting breathing aerosol gas and the method for regulating breathing aerosol gas provided by the present invention include a pipeline and an air inlet connection port arranged on the pipeline for connecting an aerosol injection device, The exhalation port for exhaling air from the respiratory tract and the contact exchange port for contact and exchange with the respiratory tract. The present invention provides a preferred solution, which triggers the generation of atomized gas when using the device to inhale, so that the atomized gas and the absorbed air enter the respiratory tract synchronously; The valve adjusts the expiratory resistance, generates positive end-expiratory pressure, prolongs the exhalation time, ensures the time of aerosol gas in the respiratory tract, is conducive to the absorption of aerosol gas, and is also conducive to promoting the full exhalation of lung gas; The air inlet connection port is equipped with an inspiratory flow restrictor, and the ratio of the sprayed aerosol gas and non-aerosol gas is adjusted through the inspiratory flow restrictor to ensure that the inspiratory flow rate is appropriate and the inspiratory time is long enough to ensure that the aerosol drug is fully inhaled into the lungs. In order to exert the curative effect, and after properly adjusting the inspiratory flow restrictor, it can ensure that the task of a single inhalation of aerosol gas can be completed before the inhalation volume is still 140ml .

Description of drawings

Fig. 1 is a cross-sectional view of the device for assisting breathing with aerosol gas according to the present invention.

Fig. 2 is a cross-sectional view of the device for assisting breathing with aerosol gas according to a preferred embodiment of the present invention.

Fig. 3 is a cross-sectional view of the structure of the aerosol injection device of the present invention.

Fig. 4 is a gas flow diagram when the device for assisting breathing aerosol gas according to the present invention is in use.

Fig. 5 is a flow chart of the method for regulating respiratory aerosol gas according to the present invention.

Detailed ways

The present invention provides a device for assisting breathing aerosol gas and a method for regulating breathing aerosol gas. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The design concept of the technical solution of the present invention is as follows: Since only the aerosol medicine that enters the bronchioles and alveoli and is deposited in the small airways and alveoli can play a role, it is necessary to ensure that the aerosol medicine can enter the respiratory tract with inhalation, and it is also necessary to ensure that the breathing The length of time, prolong the time of a single breath, try to make the breather (person) take a deep breath. In this way, you only need to control the speed of inhalation and exhalation. Like the simplest solution of the present invention, only three ports need to be provided, so that the air intake connection port and the exhalation port are smaller to control the speed of inhalation and exhalation, and prolong the time of a single breath.

According to the above concept, the present invention provides the simplest device for assisting breathing aerosol gas, specifically as shown in Figure 1, the structural diagram of the device for assisting breathing aerosol gas according to the present invention, including: a pipeline 400, and The air intake connection port 100 on the 400 is used to connect the aerosol injection device 500 , the exhalation port 200 is used to discharge air from the respiratory tract, and the contact exchange port 300 is used to contact and exchange with the respiratory tract. It should be noted that the exhalation port can not only take in air but also exhale it. The air intake connection port is used for the entry of aerosol gas (also can be used for the entry of air). When the exhalation port is small, the exhaled gas cannot be discharged in time. , the coefficient of gas cannot be obtained in time, which prolongs the duration of a single breath and prolongs the residence time of mist medicine in the body. At the same time, when exhaling, the pipeline generates positive end-expiratory pressure, which is conducive to the full exhalation of alveolar gas with endogenous positive end-expiratory pressure. Manually press the aerosol injection device to make the aerosol gas enter the pipeline, and the aerosol gas enters the lungs along the inhalation airflow. When the size of the exhalation port is appropriate, the inhalation flow rate can be ensured and the inhalation time is long enough. The aerosol gas entering the pipeline can be inhaled into the lungs, ensuring that the aerosol gas (aerosol medicine) is fully inhaled into the lungs and exerts a curative effect.

The simplest device for assisting respiration of aerosol gas provided by the present invention cannot adjust the exhalation resistance, nor can it adjust the ratio of sprayed aerosol gas to non-aerosol gas and the inhalation speed, nor can it adjust the gas sprayed by the aerosol spray device. The mist gas is observed, and for this reason, the present invention also provides a better solution. Specifically as shown in Figure 2.

Please refer to Fig. 2, the device for assisting breathing aerosol gas according to the present invention, including:

The pipeline 400 and the inlet connection port 100 for connecting the aerosol injection device, the exhalation port 200 for exhausting the respiratory tract gas and the contact exchange port 300 for contacting and exchanging gas with the respiratory tract arranged on the pipeline 400;

A one-way exhalation valve 104 arranged at the exhalation port 200 for adjusting exhalation resistance;

An inhalation restrictor 106 is provided at the air inlet connection port 100 for adjusting the ratio of sprayed aerosol gas to non-aerosol gas when the air inlet connection port is connected to an aerosol injection device.

The one-way exhalation valve 104 only allows gas to flow out from the inside to the outside, and does not allow gas to flow in from the outside to the inside; when the exhalation resistance is adjusted through the one-way exhalation valve 104, the exhalation can be set according to the actual situation of the respirator (person). Resistance, so that the device for assisting respiration of aerosol gas can be applied to different respirators, and the best exhalation resistance can be set.

Inhalation flow restrictor 106 is added on the basis of the air intake of the air intake connection port, mainly to adjust the air intake amount of the air intake connection port and the air sprayed by the aerosol spray device when the air intake connection port is connected to the air mist injection device. The proportion of fog volume. Because the situation of the respirator is not the same, adding an inspiratory flow restrictor 106 can make the device for assisting breathing aerosol gas suitable for different respirators and different treatment periods of the same respirator, and the inspiratory flow restrictor is adjusted The intake volume of air is adjusted according to the above ratio. The inspiratory flow restrictor 106 is a one-way inspiratory flow restrictor, which only allows gas to enter and does not allow gas to flow out.

Please continue to refer to FIG. 2 . In the device for assisting breathing aerosol gas according to the present invention, preferably, the pipeline 400 is a transparent pipeline. The transparent pipe can facilitate the observation of the inhalation of the aerosol gas, and then effectively adjust the device for assisting breathing of the aerosol gas.

Please refer to FIG. 2 again, the device for assisting respiration of aerosol gas according to the present invention preferably further includes: a trigger unit 105 for triggering and controlling the aerosol injection device to spray aerosol when the pipeline is under negative pressure. There are many ways to realize the trigger unit 105. If the trigger unit is a sensor, such as a pressure sensor, which can sense the pipeline pressure, the aerosol spray device is provided with a response mechanism, and the response mechanism controls the air mist when it receives the signal from the sensor. Mist spray device sprays.

The device for assisting respiration of aerosol gas according to the present invention preferably further includes: an aerosol injection device 500 arranged at the air inlet connection port. Please refer to FIG. 3 . FIG. 3 is a structural sectional view of the aerosol injection device of the present invention. As shown in FIG. 3 , the aerosol injection device is provided with an aerosol nozzle 203 and an airbag 202 filled with liquid. It should be noted that the aerosol injection device may be a component of the device for assisting breathing with aerosol gas.

Please refer to FIG. 4 . FIG. 4 is a gas flow diagram of the breathing aid aerosol gas device according to the present invention in use. In Figure 4, two states are included:

The gas flow direction in the inhalation state is: when inhaling, air enters the device for assisting breathing aerosol gas along direction 303, and the aerosol injection device sprays aerosol gas along direction 304 to the device for assisting breathing aerosol gas In this way, the respirator can inhale gas at the contact exchange port, and the gas at the contact exchange port flows from inside to outside (relative to the device for assisting breathing aerosol gas), along the direction shown by the left arrow in direction 301.

The gas flow direction in the exhalation state is: when exhaling, the gas from the respiratory tract first enters the device for assisting breathing aerosol gas through the contact exchange port, and the gas contacting the exchange port flows from outside to inside (relative to the device for assisting breathing aerosol gas) ), in the direction indicated by the right arrow in direction 301, and then exhaled in direction 302 through the exhalation port.

The device for assisting respiration of aerosol gas preferably further includes: a respiration volume detection unit for obtaining the volume value of the gas inhaled by the respirator in real time. After obtaining the gas volume value inhaled by the respirator, the aerosol injection device can be controlled in time to stop spraying aerosol according to the gas volume value, reducing the aerosol entering into the anatomical dead space, thus saving aerosol gas (aerosol medicine).

The device for assisting respiration of aerosol gas preferably further includes: a control and termination unit for controlling the aerosol injection device to stop spraying aerosol after the breather inhales a certain volume of gas. A certain volume refers to the gas volume of the respirator’s normal breathing minus the gas volume of the anatomical dead space. For example, the gas volume of the anatomical dead space of a normal adult is 140ml. The 140ml of aerosol gas will all stay in the anatomical dead space, so that the aerosol gas will not be wasted.

Please refer to FIG. 5 , which is a flow chart of the method for regulating respiratory aerosol gas according to the present invention. As shown in Figure 5, the described method for regulating breathing aerosol gas comprises the following steps:

Step 501. When the patient inhales, control the aerosol injection device to spray aerosol, and control the inspiratory flow rate by adjusting the inspiratory flow restrictor, so that the pipeline generates negative pressure; when the patient inhales, the pressure in the pipeline decreases, and the open The aerosol injection device sprays medicine, so that the sprayed aerosol is inhaled into the respiratory tract along the inspiratory airflow. Make the pipeline generate negative pressure when inhaling, adjust the inspiratory flow restrictor to ensure that the inspiratory flow rate is appropriate and the inspiratory time is long enough, and the aerosol gas that enters the pipeline is preferentially inhaled into the lungs to ensure that the aerosol drug is fully inhaled into the lungs , to play a curative effect.

Step 502, control the aerosol injection device to stop spraying aerosol after the respirator inhales a certain volume of gas; the certain volume refers to the gas volume of the respirator's normal breathing minus the gas volume of the anatomical dead space, such as the anatomical dead space of a normal adult The gas capacity is 140ml. If the aerosol injection is stopped before the user inhales 140ml, the last 140ml of aerosol gas will stay in the anatomical dead space, so that the aerosol gas will not be wasted.

Step 503 , when the respirator exhales, the exhalation resistance is adjusted through the one-way exhalation valve, so that the pipeline generates a positive end-expiratory pressure. When the patient exhales, the pressure in the pipeline rises, and the exhalation one-way valve is opened to exhale. The resistance switch on the exhalation valve can adjust the exhalation resistance to make the pipeline generate a certain pressure. According to the feeling of each patient, An appropriate pressure value can be found.

The method for adjusting respiratory aerosol gas, wherein, before step 501, it also includes: pre-fixing the aerosol injection device containing liquid medicine on the air inlet connection port, specifically as described above.

In the method for adjusting respiratory aerosol gas, step 502 further includes: adjusting the ratio of aerosol gas and non-aerosol gas sprayed by the aerosol injection device, specifically as described above.

In summary, the device for assisting breathing aerosol gas and the method for regulating breathing aerosol gas provided by the present invention include a pipeline and an air inlet connection port for connecting an aerosol injection device arranged on the pipeline, for discharging The exhalation port for respiratory gas and the contact exchange port for contacting and exchanging with the respiratory tract. The present invention provides a preferred solution, which triggers the generation of atomized gas when using the device to inhale, so that the atomized gas and the absorbed air enter the respiratory tract synchronously; The valve adjusts the expiratory resistance, generates positive end-expiratory pressure, prolongs the exhalation time, ensures the time of aerosol gas in the respiratory tract, is conducive to the absorption of aerosol gas, and is also conducive to promoting the full exhalation of lung gas; The air inlet connection port is equipped with an inspiratory flow restrictor, and the ratio of the sprayed aerosol gas and non-aerosol gas is adjusted through the inspiratory flow restrictor to ensure that the inspiratory flow rate is appropriate and the inspiratory time is long enough to ensure that the aerosol drug is fully inhaled into the lungs. In order to exert the curative effect, and after properly adjusting the inspiratory flow restrictor, it can ensure that the task of a single inhalation of aerosol gas can be completed before the inhalation volume is still 140ml .

It should be understood that the application of the present invention is not limited to the above examples, and those skilled in the art can make improvements or transformations according to the above descriptions, and all these improvements and transformations should belong to the protection scope of the appended claims of the present invention.

Claims (10)

1. the device of assisted respiartion aerosol gas, is characterized in that, comprising:

Pipeline and be arranged on pipeline for connect aerosol injection apparatus air inlet connector, for discharging the exhalation vents of respiratory tract gas and the contact for contacting exchanging gas with respiratory tract exchanges mouth;

Be arranged on exhalation vents, for regulating the one-way breather valve of expiratory resistance;

Be arranged on air inlet connector, for regulating the air-breathing current limiter of aerosol gas and the non-aerosol gas ratio sprayed when air inlet connector connects aerosol injection apparatus.

2. the device of assisted respiartion aerosol gas according to claim 1, is characterized in that, described pipeline is transparent pipeline.

3. the device of assisted respiartion aerosol gas according to claim 1, is characterized in that, also comprise: spray the trigger element of aerosol for the trigging control aerosol injection apparatus when pipe negative pressure.

4. the device of assisted respiartion aerosol gas according to claim 1, is characterized in that, also comprise: the aerosol injection apparatus being arranged on air inlet connector.

5. the device of assisted respiartion aerosol gas according to claim 4, is characterized in that, described aerosol injection apparatus is provided with aerial fog nozzle.

6. the device of assisted respiartion aerosol gas according to claim 1, is characterized in that, also comprise: for the respiratory capacity detecting unit of the gas volume value that Real-time Obtaining breather sucks.

7. the device of assisted respiartion aerosol gas according to claim 1, is characterized in that, also comprise: for suck a certain amount of volume as breather gas after control aerosol injection apparatus and stop spraying the control of aerosol and stop injection unit.

8. utilize the method for the adjustment respiratory gas fog body of the device of assisted respiartion aerosol gas described in claim 1, it is characterized in that, comprise the following steps:

A, when breather's air-breathing, control aerosol injection apparatus and spray aerosol, and by regulating air-breathing current limiter to control inspiratory flow rate, make pipeline produce negative pressure;

B, suck a certain amount of volume breather gas after control aerosol injection apparatus and stop spraying aerosol;

C, when breather exhales, regulate expiratory resistance by one-way breather valve, make pipeline produce end expiratory positive pressure.

9. the method for adjustment respiratory gas fog body according to claim 8, is characterized in that, also comprise before steps A: in advance the aerosol injection apparatus being contained with liquid medicine is fixed on air inlet connector.

10. the method for adjustment respiratory gas fog body according to claim 8, it is characterized in that, steps A also comprises: the aerosol gas regulating aerosol injection apparatus to spray and non-aerosol gas ratio.