CN216908851U - Breathing machine gas circuit system for realizing airway pressure regulation and breathing machine - Google Patents
Breathing machine gas circuit system for realizing airway pressure regulation and breathing machine Download PDFInfo
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- CN216908851U CN216908851U CN202123046155.3U CN202123046155U CN216908851U CN 216908851 U CN216908851 U CN 216908851U CN 202123046155 U CN202123046155 U CN 202123046155U CN 216908851 U CN216908851 U CN 216908851U
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000010792 warming Methods 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000003434 inspiratory effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004202 respiratory function Effects 0.000 description 2
- 206010061688 Barotrauma Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The application relates to a breathing machine gas circuit system and a breathing machine for realizing airway pressure regulation, which belong to the technical field of medical instruments, and the gas circuit system comprises an inspiration loop system; the air suction loop system comprises an air source unit, a pressure generation unit and a heating and humidifying unit which are connected in sequence; the air source unit is used for filtering external air flowing into the air suction loop; the pressure generating unit is used for maintaining the pressure of the cleaned gas; the heating and humidifying unit is used for heating and humidifying the gas to be flowed out of the air suction loop; the pressure generating unit comprises a turbo fan and a bypass valve connected with the turbo fan in parallel; the bypass valve is used for realizing the adjustment of the pressure of the air passage in the air suction loop system based on the opening condition of the bypass valve. This application realizes the control of airway pressure through the setting based on the bypass valve in the gas circuit, and this kind of mode is favorable to providing more comfortable use experience for the breathing machine user.
Description
Technical Field
The application belongs to the technical field of medical equipment, and particularly relates to a breathing machine gas circuit system and a breathing machine for realizing airway pressure regulation.
Background
The respirator is a device which can replace, control or change the normal physiological respiration of a person, increase the lung ventilation, improve the respiratory function, reduce the consumption of the respiratory function and save the heart reserve capacity, and is mainly used for families, sleep treatment centers and clinics.
Among the correlation technique, the air supply is supplied by adopting the fan mostly in the control of the existing noninvasive ventilator air circuit, when the air supply is carried out by the turbofan, the adjustment of the air passage pressure is realized by adjusting the air flow in the air circuit according to the rotating speed of the turbofan motor, the rotating speed of the turbofan motor is adjusted to have higher requirement on the performance of the motor, the control response speed is slow, the control precision is also poor, and therefore uncomfortable feeling can be brought to the patient in the using process.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art at least to a certain extent, the air passage system of the breathing machine and the breathing machine for realizing the adjustment of the air passage pressure are provided, the air passage pressure is controlled based on the setting of the bypass valve in the air passage, and the breathing machine is favorable for providing more comfortable use experience for a user of the breathing machine.
In order to achieve the purpose, the following technical scheme is adopted in the application:
in a first aspect,
the application provides a breathing machine gas path system for realizing airway pressure regulation, which comprises an inspiration loop system; the air suction loop system comprises an air source unit, a pressure generation unit and a heating and humidifying unit which are sequentially connected;
the air source unit is used for filtering external air flowing into the air suction loop to realize cleaning of air; the pressure generating unit is used for maintaining the pressure of the cleaned gas and ensuring the flow of the gas; the heating and humidifying unit is used for heating and humidifying the gas to be flowed out of the air suction loop so as to realize the outflow of comfortable gas;
wherein,
the pressure generating unit comprises a turbo fan and a bypass valve connected with the turbo fan in parallel;
the bypass valve is used for adjusting the pressure of the air passage in the air suction loop system based on the opening condition of the bypass valve.
Optionally, the gas source unit comprises a filter and a gas containing structure connected in sequence.
Optionally, the filter is a reusable foam filter;
the air inlet end of the foam filter is provided with a dust cover which can be opened and closed.
Optionally, the pressure generating unit further comprises a first check valve and a safety valve which are arranged on the gas path on the outlet side of the turbo fan in sequence.
Optionally, the bypass valve is a proportional solenoid valve.
Optionally, the heating and humidifying unit comprises a heating and humidifying device, the inlet end of the heating and humidifying device is connected with the pressure generating unit, and the outlet end of the heating and humidifying device is connected with the breathing machine mask;
the air circuit between the pressure generating unit and the warming humidifier is sequentially provided with a pressure sensor and a first flow sensor, and the air circuit between the outlet end of the warming humidifier and the breathing machine mask is also provided with a temperature and humidity sensor.
Optionally, an expiratory circuit system is further included;
one end of the expiration loop system is connected with a respirator mask, and the other end of the expiration loop system is connected with an expiration discharge port;
and a dehydrator, a second flow sensor, an expiratory valve and a second one-way valve are sequentially arranged on the gas path of the expiratory circuit system from the side of the respirator mask to the side of the expiratory outlet.
In a second aspect of the present invention,
the present application provides a ventilator, the ventilator comprising: the ventilator circuit system of any preceding claim.
This application adopts above technical scheme, possesses following beneficial effect at least:
in the technical scheme of the application, an inspiration loop system of a breathing machine gas circuit system comprises a gas source unit, a pressure generating unit and a heating and humidifying unit which are sequentially connected; the pressure generating unit comprises a turbo fan and a bypass valve connected with the turbo fan in parallel; the bypass valve is used for realizing the adjustment of the pressure of the air passage in the air suction loop system based on the opening condition of the bypass valve. The control of airway pressure is achieved through the arrangement of a bypass valve in the airway, which is beneficial to providing a more comfortable use experience for the user of the ventilator.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the technology or prior art of the present application and are incorporated in and constitute a part of this specification. The drawings expressing the embodiments of the present application are used for explaining the technical solutions of the present application, and should not be construed as limiting the technical solutions of the present application.
Fig. 1 is a schematic structural diagram illustrating an inspiratory circuit system in a ventilator circuit system for implementing airway pressure regulation according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a configuration of a ventilator circuit system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a ventilator circuit system according to an embodiment of the present disclosure.
In the figure, the position of the upper end of the main shaft,
10-a gas source unit; 11-a filter; 12-gas-containing structure;
20-a pressure generating unit; 21-a turbo fan; 22-a bypass valve; 23-a first one-way valve; 24-a safety valve;
30-a heating and humidifying unit; 31-a heating humidifier; 32-a pressure sensor; 33-a first flow sensor; 34-a temperature and humidity sensor;
41-a dehydrator; 42-a second flow sensor; 43-a breather valve; 45-second one-way valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
As described in the background art, in the related art, most of the existing noninvasive ventilator air path control adopts a blower to supply air, when the turbo blower supplies air, the adjustment of the air path pressure is realized by adjusting the air flow in the air path through adjusting the rotating speed of a turbo blower motor, the requirement of adjusting the rotating speed of the turbo blower motor on the performance of the motor is high, the control response speed is low, and the control precision is poor, so that uncomfortable feeling can be brought to a patient in the using process.
In view of the above, the present application provides a ventilator circuit system for implementing airway pressure regulation.
In one embodiment, the ventilator circuit system proposed herein includes an inspiratory circuit system; as shown in fig. 1, the inspiration circuit system comprises an air source unit 10, a pressure generating unit 20 and a warming and humidifying unit 30 which are connected in sequence;
the air source unit 10 is used for filtering external air flowing into the air suction loop to realize cleaning of air;
the pressure generating unit 20 is used for maintaining the pressure of the cleaned gas and ensuring the flow of the gas;
the heating and humidifying unit 30 is used for heating and humidifying the gas to be flowed out of the air suction loop so as to realize the outflow of comfortable gas;
the pressure generating unit 20 includes a turbo fan 21, and a bypass valve 22 connected in parallel with the turbo fan 21;
the bypass valve 22 is used to regulate the pressure in the air intake circuit system based on its opening, and the bypass valve 22 is, for example, a proportional solenoid valve.
According to the technical scheme, in application, the adjustment of the air flue pressure is realized by adjusting the rotating speed of the turbo fan, and is realized based on a bypass valve connected with the turbo fan in parallel, which is different from the prior art. When the bypass valve is fully opened, all gas generated by the turbo fan flows back to the turbo fan, and the gas is not conveyed to the next stage; when the bypass valve is completely closed, the gas generated by the turbo fan flows into the next stage gas circuit without backflow, and in this way, the gas passage pressure is controlled by controlling the opening condition of the bypass valve.
By applying the gas circuit system with the structure, the problems of low linkage feedback and control signal response speed and low precision of the traditional breathing machine gas circuit system are solved by adjusting the pressure of the gas circuit. In addition, in the application, the rotating speed of the turbofan is only fixed, the bypass valve connected to the turbofan in parallel is adjusted to control the air flow in the air path, the turbofan is only used as a constant-flow air source, the output is relatively stable, the breathing is controlled by the opening and closing conditions of the bypass valve, and the improvement of the control performance of the air path system of the breathing machine is facilitated.
To facilitate understanding of the technical solutions of the present application, the technical solutions of the present application will be described below with reference to another embodiment.
As shown in fig. 2 and 3, in this embodiment, the ventilator circuit system for implementing airway pressure regulation proposed by the present application includes an inspiratory circuit system;
the air suction loop system comprises an air source unit 10, a pressure generating unit 20 and a heating and humidifying unit 30 which are connected in sequence;
the air source unit 10 is used for filtering external air flowing into the air suction loop to realize cleaning of air;
specifically, in this embodiment, the gas source unit 10 includes a filter 11 and a gas containing structure 12 connected in series.
As shown in fig. 2 and 3, one end of the filter 11 is connected to an Air input end (corresponding to the illustration of Air in the figure), the other end of the filter 11 is connected to the Air-containing structure 12, and the filter 11 is used for filtering Air entering the ventilator, so as to filter out impurities and dust in the Air, protect the ventilator, and simply purify the inhaled Air.
As a specific embodiment, the filter 11 herein may be a reusable foam filter; the air inlet end of the foam filter is provided with the openable dust cover, so that the dust cover can be conveniently covered to prevent dust or foreign matters from entering when the respirator is not used.
The air containing structure 12 is used for storing clean air, for example, the air containing structure 12 may be an air storage tank.
The pressure generating unit 20 is used for maintaining the pressure of the cleaned gas and ensuring the flow of the gas;
specifically, the pressure generating unit 20 includes a turbo fan 21, and a bypass valve 22 connected in parallel to the turbo fan 21; as shown in fig. 2 and 3, in this embodiment, one end of the gas containing structure 12 in the upper stage gas path is connected to the turbo fan 21 and the bypass valve 22, and the other end of the turbo fan 21 is connected to the input end of the first check valve 23 and the bypass valve 22, so that the bypass valve 22 is connected in parallel to the turbo fan 21;
the turbo fan 21 generates the air flow required by the user to inhale through the turbine, has relatively low cost, small volume, is suitable for portable and household breathing machines, and has low noise, thereby meeting the noise requirement of the portable breathing machine.
The bypass valve 22 is used to effect regulation of the pressure in the air passage of the inspiratory circuit system based on its opening. The bypass valve here is a proportional solenoid valve. As previously mentioned, in applications such as when the bypass valve is fully open, the gas generated by the turbo fan is totally recirculated to the turbo fan without delivering the gas to the next stage; when the bypass valve is completely closed, the gas generated by the turbo fan flows into the next stage gas circuit without backflow, and in this way, the gas passage pressure is controlled by controlling the opening condition of the bypass valve.
In this embodiment, as shown in fig. 2 and 3, the pressure generating unit 20 further includes a first check valve 23 and a safety valve 24 sequentially disposed on the gas path on the outlet side of the turbo fan, that is, one end of the outlet side of the turbo fan 21 is connected to the input end of the first check valve 23 by a bypass valve, and the output end of the first check valve 23 is connected to the safety valve 24;
it will be readily appreciated that the first one-way valve 23 is provided here to prevent backflow of gas. A safety valve 24 is provided to prevent excessive airway pressure from causing barotrauma to the user during use, and is opened when the airway pressure is above a set value, and closed when the airway pressure returns to the set value.
And it should be noted that the above description of the control of the safety valve is only for the purpose of example illustration, and the present application is not concerned with the improvement of the related control method.
In this embodiment, the warming and humidifying unit 30 is used for warming and humidifying the air to be flowed out of the air suction loop, so as to realize outflow of comfortable air;
specifically, in this embodiment, the warming and humidifying unit 30 includes a warming and humidifying device 21, an inlet end of the warming and humidifying device is connected to the pressure generating unit 20, and an outlet end of the warming and humidifying device is connected to a breathing machine Mask (Mask illustration in fig. 2 and 3);
as shown in fig. 2 and 3, a pressure sensor 32 and a first flow sensor 33 are sequentially disposed on an air path between the pressure generating unit 20 and the warming humidifier 31, and a temperature and humidity sensor 34 is further disposed on an air path between an outlet end of the warming humidifier 21 and the breathing mask.
The heating and humidifying device 21 has the specific humidifying and heating functions, and can heat and humidify fresh and clean air to enable the fresh and clean air to flow to a patient at proper temperature and humidity, so that discomfort caused by stimulation of the airway of the user is avoided.
The pressure sensor 32 and the first flow sensor 33 are arranged to provide corresponding detection signals, so as to facilitate the implementation of the related functions of the ventilator.
In this embodiment, as shown in fig. 2 and 3, the ventilator circuit system proposed in the present application further includes an expiratory circuit system;
one end of the expiration circuit system is connected with a respirator Mask (Mask illustration in figures 2 and 3), and the other end is connected with an expiration exhaust outlet (corresponding to the expiration exhaust illustration in figures 2 and 3);
the gas path of the expiratory circuit system is provided with a dehydrator 41, a second flow sensor 42, an expiratory valve 43, and a second check valve 45 in this order from the respirator mask side to the expiratory vent side.
The dehydrator 41 is used to dehydrate the exhaled air; the breather valve 43 is used for controlling the pressure of the airway during expiration, and here, a proportional solenoid valve is used as an expiratory valve, and the opening condition of the expiratory valve is controlled to maintain the airway pressure of expiratory reflux.
In an embodiment, the present application also provides a ventilator, comprising: the ventilator circuit system of any preceding claim.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A breathing machine gas circuit system used for realizing the pressure regulation of an airway is characterized by comprising an inspiration circuit system; the air suction loop system comprises an air source unit, a pressure generation unit and a heating and humidifying unit which are sequentially connected;
the air source unit is used for filtering external air flowing into the air suction loop to realize cleaning of air; the pressure generating unit is used for maintaining the pressure of the cleaned gas and ensuring the flow of the gas; the heating and humidifying unit is used for heating and humidifying the gas to be flowed out of the air suction loop so as to realize the outflow of comfortable gas;
wherein,
the pressure generating unit comprises a turbo fan and a bypass valve connected with the turbo fan in parallel;
the bypass valve is used for adjusting the pressure of the air passage in the air suction loop system based on the opening condition of the bypass valve.
2. The ventilator circuit system of claim 1 wherein said gas source unit comprises a filter and a gas containing structure connected in series.
3. The ventilator circuit system of claim 2 wherein said filter is a reusable foam filter;
the air inlet end of the foam filter is provided with a dust cover which can be opened and closed.
4. The ventilator circuit system of claim 1 wherein said pressure generating unit further comprises a first check valve and a safety valve disposed in sequence on the outlet side circuit of the turbo fan.
5. The ventilator gas circuit system of claim 1 wherein said bypass valve is a proportional solenoid valve.
6. The breathing machine gas circuit system according to claim 1, wherein the warming and humidifying unit comprises a warming and humidifying device, the inlet end of the warming and humidifying device is connected with the pressure generating unit, and the outlet end of the warming and humidifying device is connected with a breathing machine mask;
the air circuit between the pressure generating unit and the warming humidifier is sequentially provided with a pressure sensor and a first flow sensor, and the air circuit between the outlet end of the warming humidifier and the breathing machine mask is also provided with a temperature and humidity sensor.
7. The ventilator circuit system of claim 1 further comprising an expiratory circuit system;
one end of the expiration loop system is connected with a respirator mask, and the other end of the expiration loop system is connected with an expiration discharge port;
and a dehydrator, a second flow sensor, an expiratory valve and a second one-way valve are sequentially arranged on the gas path of the expiratory circuit system from the side of the respirator mask to the side of the expiratory outlet.
8. A ventilator, comprising: the ventilator circuit system of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123046155.3U CN216908851U (en) | 2021-12-06 | 2021-12-06 | Breathing machine gas circuit system for realizing airway pressure regulation and breathing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123046155.3U CN216908851U (en) | 2021-12-06 | 2021-12-06 | Breathing machine gas circuit system for realizing airway pressure regulation and breathing machine |
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| CN216908851U true CN216908851U (en) | 2022-07-08 |
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| CN202123046155.3U Expired - Fee Related CN216908851U (en) | 2021-12-06 | 2021-12-06 | Breathing machine gas circuit system for realizing airway pressure regulation and breathing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357604A (en) * | 2023-04-11 | 2023-06-30 | 沃杰(北京)科技有限公司 | High-performance turbine fan control method, system and medium |
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- 2021-12-06 CN CN202123046155.3U patent/CN216908851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357604A (en) * | 2023-04-11 | 2023-06-30 | 沃杰(北京)科技有限公司 | High-performance turbine fan control method, system and medium |
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