CN113577477A - Gas circuit system and breathing machine - Google Patents
Gas circuit system and breathing machine Download PDFInfo
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- CN113577477A CN113577477A CN202110868535.0A CN202110868535A CN113577477A CN 113577477 A CN113577477 A CN 113577477A CN 202110868535 A CN202110868535 A CN 202110868535A CN 113577477 A CN113577477 A CN 113577477A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes operated by electrical means
- A61M16/022—Control means therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
- A61M16/122—Preparation of respiratory gases or vapours by mixing different gases with dilution
- A61M16/125—Diluting primary gas with ambient air
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Abstract
本发明公开一种气路系统和呼吸机，气路系统包括电动空气组件与供氧组件连接，电动空气组件包括涡轮以用于吸入外界空气并进行加压后与供氧组件输出的氧气混合；气动空气组件与供氧组件连接，气动空气组件以用于将气瓶接口的气体与供氧组件的氧气混合，第一压力传感器与涡轮电性连接，第一压力传感器用于检测气瓶接口的气体并反馈控制涡轮；气体输出组件分别与电动空气组件和气动空气组件连接，以用于接收混合后的气体并输出。本发明技术方案旨在提供一种可以为医疗机构对危重症病人的转运与治疗提供解决方案的气路系统，同时降低呼吸机长时间工作的风险，且降低医疗机构对医疗设备的采购和维护成本。
The invention discloses an air circuit system and a ventilator. The air circuit system includes an electric air component connected with an oxygen supply component, and the electric air component includes a turbine for inhaling outside air and pressurizing it to mix with the oxygen output from the oxygen supply component; The pneumatic air component is connected with the oxygen supply component, the pneumatic air component is used to mix the gas of the gas cylinder interface with the oxygen of the oxygen supply component, the first pressure sensor is electrically connected with the turbine, and the first pressure sensor is used to detect the gas cylinder interface. The gas is fed back to control the turbine; the gas output components are respectively connected with the electric air component and the pneumatic air component for receiving and outputting the mixed gas. The technical scheme of the present invention aims to provide an air circuit system that can provide a solution for the transport and treatment of critically ill patients by medical institutions, while reducing the risk of ventilator working for a long time, and reducing the procurement and maintenance of medical equipment by medical institutions cost.
Description
Technical Field
The invention relates to the technical field of breathing machines, in particular to a gas path system and a breathing machine applying the gas path system.
Background
The transportation treatment breathing machine in the current market mainly includes pneumatic automatically controlled breathing machine and electronic automatically controlled breathing machine, and pneumatic automatically controlled breathing machine needs the high pressurized air source drive just can work, need be equipped with comparatively heavy gas cylinder and carry out the air feed in the institute adversary in-process of hospital, leads to having reduced the flexibility of transporting. The electric control type respirator needs to be matched with the turbine to supply air, so that the problem of air source input during hospital transfer in a hospital can be solved, but in the aspect of long-time treatment in the hospital, the function is unstable, the working noise is large, and meanwhile, the turbine works for a long time, so that the defects that the aging of the turbine is increased, the sensitivity of the machine is reduced, the treatment risk exists and the like can be overcome. Therefore, the function of the existing respirator is single, and the requirements of medical institutions on the transportation and treatment of critically ill patients cannot be met.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a gas path system, and aims to provide a gas path system which can provide a solution for transportation and treatment of critically ill patients for medical institutions, reduce the risk of long-time work of a breathing machine, and reduce the purchase and maintenance cost of medical equipment for the medical institutions.
In order to achieve the above object, the present invention provides a gas path system, which includes:
an oxygen supply assembly;
the electric air assembly is connected with the oxygen supply assembly and comprises a turbine, and the turbine is used for sucking outside air, pressurizing the outside air and mixing the outside air with oxygen output by the oxygen supply assembly;
the pneumatic air assembly is connected with the oxygen supply assembly and comprises a gas cylinder interface and a first pressure sensor which are connected, the pneumatic air assembly is used for mixing gas of the gas cylinder interface with oxygen of the oxygen supply assembly, the first pressure sensor is electrically connected with the turbine, and the first pressure sensor is used for detecting the gas of the gas cylinder interface and controlling the turbine in a feedback mode; and
and the gas output assembly is respectively connected with the electric air assembly and the pneumatic air assembly and is used for receiving and outputting the mixed gas.
In an embodiment of this application, electronic air subassembly includes that the outside air interface falls the room and fall the room of making an uproar the second, fall the room with the air inlet intercommunication falls in the first room of making an uproar, fall the room with fall the first room of making an uproar and pass through the turbine is connected, just fall the room with the oxygen suppliment subassembly is connected in the second, the turbine inhales the outside air passes through in proper order the outside air interface falls the room and fall the room of making an uproar the second, and with the oxygen of oxygen suppliment subassembly falls the indoor mixture of making an uproar the second and exports to gaseous output subassembly.
In an embodiment of the present application, the electric air assembly further comprises a first check valve connected between the second noise reduction chamber and the air output assembly to direct the mixed air to the air output assembly;
and/or the electric air assembly further comprises a first flow sensor connected with the outside air interface for monitoring the flow of the outside air interface;
and/or, the electric air assembly further comprises a first filter connected between the ambient air interface and the first noise reduction chamber for filtering ambient air passing through the ambient air interface.
In an embodiment of the present application, the pneumatic air assembly further includes a first pressure reducing valve, the first pressure reducing valve is electrically connected to the first pressure sensor, and the first pressure reducing valve is communicated with the gas cylinder interface to reduce the pressure of the gas passing through the gas cylinder interface;
and/or the pneumatic air assembly further comprises a first proportional valve, the first proportional valve is communicated with the gas cylinder interface and the oxygen supply assembly, and the first proportional valve is used for adjusting the flow of gas passing through the gas cylinder interface, mixing with oxygen of the oxygen supply assembly and outputting the mixture to the gas output assembly;
and/or the pneumatic air assembly further comprises a second filter connected to the cylinder interface for filtering gas passing through the cylinder interface.
In an embodiment of this application, the oxygen suppliment subassembly includes the hyperbaric oxygen interface, the low pressure oxygen interface, air supply diverter valve and oxygen three-way valve, the air supply diverter valve respectively with the hyperbaric oxygen interface with the low pressure oxygen interface intercommunication is used for switching over the hyperbaric oxygen interface with switching on of low pressure oxygen interface, the oxygen three-way valve respectively with the air supply diverter valve the electronic air subassembly and the pneumatic air subassembly intercommunication, in order to be used for with the gas outlet of air supply diverter valve respectively with the electronic air subassembly or the pneumatic air subassembly switches on.
In an embodiment of the application, the oxygen supply assembly further includes a second pressure sensor and a second pressure reducing valve connected to each other, the second pressure sensor and the second pressure reducing valve are both communicated with the air source switching valve, the second pressure sensor is used for detecting oxygen at an air outlet of the air source switching valve, and the second pressure reducing valve is used for reducing pressure of the oxygen passing through the air source switching valve;
and/or, the oxygen suppliment subassembly still includes second flow sensor and the second proportional valve that is connected, the second flow sensor all with the air supply diverter valve intercommunication for be used for monitoring the oxygen flow of the export of air supply diverter valve, the second proportional valve sets up between the air supply diverter valve and the oxygen three-way valve, in order to be used for adjusting the oxygen flow who flows to the oxygen three-way valve from the air supply diverter valve.
In an embodiment of the present application, the gas output assembly comprises:
a third flow sensor in communication with the electric air assembly and the pneumatic air assembly, respectively, for receiving the mixed gas;
an air-oxygen mixer, which is communicated with the third flow sensor and is electrically connected with the oxygen supply component, the electric air component and the pneumatic air component respectively, and is used for detecting the oxygen concentration of the mixed gas and performing feedback control on the oxygen supply component, the electric air component and the pneumatic air component; and
an air suction valve in communication with the air-oxygen mixer.
In an embodiment of the present application, the gas output assembly further includes a second one-way valve, and the second one-way valve is respectively communicated with the air-oxygen mixer and the inhalation valve, so as to guide the mixed gas to flow to the inhalation valve;
and/or the gas output assembly further comprises a free breathing valve, and the free breathing valve is connected between the air-oxygen mixer and the inhalation valve and is used for receiving the flow of the outside air to the inhalation valve.
In an embodiment of the application, the gas path system further includes an atomization three-way valve and a first switch valve, which are connected to each other, the atomization three-way valve is respectively communicated with the oxygen supply assembly and the pneumatic air assembly, and the first switch valve is used for being connected to an atomizer so as to atomize the oxygen of the oxygen supply assembly or the gas of the pneumatic air assembly into the medicine in the atomizer;
and/or the gas circuit system further comprises an exhalation valve, a second switch valve and a fourth flow sensor, wherein the exhalation valve is used for the patient to exhale, the fourth flow sensor is connected with the exhalation valve and used for detecting the gas flow of the exhalation valve, and the second switch valve is respectively communicated with the fourth flow sensor and the gas output assembly and used for conducting the mixed gas of the gas output assembly to the fourth flow sensor.
The invention also provides a breathing machine, which comprises a gas path system, wherein the gas path system comprises:
an oxygen supply assembly;
the electric air assembly is connected with the oxygen supply assembly and comprises a turbine, and the turbine is used for sucking outside air, pressurizing the outside air and mixing the outside air with oxygen output by the oxygen supply assembly;
the pneumatic air assembly is connected with the oxygen supply assembly and comprises a gas cylinder interface and a first pressure sensor which are connected, the pneumatic air assembly is used for mixing gas of the gas cylinder interface with oxygen of the oxygen supply assembly, the first pressure sensor is electrically connected with the turbine, and the first pressure sensor is used for detecting the gas of the gas cylinder interface and controlling the turbine in a feedback mode; and
and the gas output assembly is respectively connected with the electric air assembly and the pneumatic air assembly and is used for receiving and outputting the mixed gas.
The gas circuit system in the technical scheme of the invention can be applied to a breathing machine, and comprises an oxygen supply assembly, an electric air assembly and a pneumatic air assembly which are respectively communicated with the oxygen supply assembly, and a gas output assembly which is used for receiving mixed gas and outputting the mixed gas to a patient. When the gas circuit system works, the first pressure sensor of the pneumatic air assembly detects whether gas flows through the gas cylinder interface, and when the gas cylinder interface is connected with a high-pressure gas cylinder for supplying gas, the pneumatic air assembly mixes the high-pressure gas with oxygen of the oxygen supply assembly and outputs the mixed gas to the gas output assembly so as to treat patients; when the gas cylinder interface is not connected with the high-pressure gas cylinder or the gas of the high-pressure gas cylinder is used up, the first pressure sensor controls the turbine of the electric air assembly to work in a feedback mode, so that the turbine sucks in outside air, pressurizes the outside air, mixes the outside air with oxygen output by the oxygen supply assembly and outputs the oxygen to the gas output assembly, and then the patient is treated.
Consequently the gas circuit system of this application can select corresponding gas circuit scheme according to the environmental factor of difference, when needs are transported and are treated, can select to carry out work by electronic air component, with the heavy gas cylinder of needs collocation when avoiding transporting, the seamless butt joint of transporting and nosocomial treatment in the hospital has been realized, transport and treatment to the critically ill others provide the solution for medical institution, and when treating for a long time in the hospital, then can work through collocation high-pressure gas cylinder and pneumatic air component, with avoid the long-time work of turbine and have the problem of potential safety hazard, can work by corresponding start-up electronic air component when high-pressure gas cylinder is used up simultaneously, safety when guaranteeing the breathing machine and using. Furthermore, the respirator using the air path system has multiple functions, so that the risk of a patient caused by changing the machine during the transfer period is reduced, and the purchase and maintenance cost of medical equipment by medical institutions is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of a gas circuit system according to the present invention;
FIG. 2 is a schematic cross-sectional view of the gas source switching valve of the gas circuit system of the present invention;
fig. 3 is another schematic cross-sectional structural diagram of the air source switching valve of the air path system of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a gas circuit system 100 applied to a breathing machine.
Referring to fig. 1, in the embodiment of the present invention, the gas path system 100 includes an oxygen supply assembly 10, an electric air assembly 20, a pneumatic air assembly 30, and a gas output assembly 40, wherein the electric air assembly 20 is connected to the oxygen supply assembly 10, the electric air assembly 20 includes a turbine 21, and the turbine 21 is used for sucking in outside air, pressurizing the air and mixing the air with oxygen output by the oxygen supply assembly 10; the pneumatic air assembly 30 is connected to the oxygen supply assembly 10, the pneumatic air assembly 30 includes a gas cylinder interface 31 and a first pressure sensor 32, the pneumatic air assembly 30 is used for mixing gas in the gas cylinder interface 31 with oxygen in the oxygen supply assembly 10, the first pressure sensor 32 is electrically connected to the turbine 21, and the first pressure sensor 32 is used for detecting gas in the gas cylinder interface 31 and controlling the turbine 21 in a feedback manner; the gas output assembly 40 is connected to the electric air assembly 20 and the pneumatic air assembly 30 respectively, for receiving and outputting the mixed gas.
It can be understood that the oxygen supply assembly 10, the electric air assembly 20, the pneumatic air assembly 30 and the gas output assembly 40 can be connected by gas pipelines to conduct, so as to facilitate the early installation and the later maintenance of each component and avoid mutual interference. It should be noted that the pressure value of the high-pressure gas in the present application is higher than 0.25MPa, and the pressure value of the low-pressure gas is the same as the pressure in the atmospheric pressure.
The gas circuit system 100 of the present invention can be applied to a ventilator, and the gas circuit system includes an oxygen supply assembly 10, an electric air assembly 20 and a pneumatic air assembly 30 respectively communicated with the oxygen supply assembly 10, and a gas output assembly 40 for receiving the mixed gas and outputting the gas to a patient. Thus, when the air circuit system 100 works, the first pressure sensor 32 of the pneumatic air assembly 30 detects whether the gas cylinder interface 31 has gas flowing through, and when the gas cylinder interface 31 is connected with a high-pressure gas cylinder for supplying gas, the pneumatic air assembly 30 mixes the high-pressure gas with the oxygen of the oxygen supply assembly 10 and outputs the mixed gas to the gas output assembly 40 to treat the patient; when the gas cylinder interface 31 is not connected with the high-pressure gas cylinder or the gas in the high-pressure gas cylinder is exhausted, the first pressure sensor 32 feedback-controls the turbine 21 of the electric air assembly 20 to work, so that the external air is sucked by the turbine 21, is pressurized, is mixed with the oxygen output by the oxygen supply assembly 10, and is output to the gas output assembly 40, so as to treat the patient. Therefore, the gas circuit system 100 of the application can select corresponding gas circuit scheme according to different environmental factors, when needs are transported and treated, can choose to be carried out work by the electric air component 20, in order to avoid collocating bulky gas cylinder when transporting, the seamless butt joint of transporting and treating in the hospital is realized, provide solution for transportation and treatment of the critical person for medical institutions, and when treating in the hospital for a long time, then can work with the pneumatic air component 30 through collocating high-pressure gas cylinder, in order to avoid the long-time work of turbine 21 and have the problem of potential safety hazard, simultaneously can work by corresponding start-up electric air component 20 when the high-pressure gas cylinder is used up, in order to guarantee the security when the breathing machine uses. Furthermore, the breathing machine using the gas circuit system 100 has multiple functions, so that the risk of the patient caused by changing the machine during the transportation process is reduced, and the purchase and maintenance cost of medical equipment by medical institutions is reduced.
Referring to fig. 1, in an embodiment of the present application, the electric air assembly 20 includes an external air interface 22, a first noise reduction chamber 23 and a second noise reduction chamber 24, the first noise reduction chamber 23 is communicated with the air inlet, the second noise reduction chamber 24 is connected to the first noise reduction chamber 23 through the turbine 21, the second noise reduction chamber 24 is connected to the oxygen supply assembly 10, the turbine 21 sucks the external air, sequentially passes through the external air interface 22, the first noise reduction chamber 23 and the second noise reduction chamber 24, and mixes with oxygen in the oxygen supply assembly 10 in the second noise reduction chamber 24 and then outputs the mixture to the gas output assembly 40. Wherein, when this turbine 21 starts, the outside air among the external environment can be inhaled from the outside air interface 22 by turbine 21 to in proper order through first noise reduction room 23 and the second noise reduction room 24, so all be provided with the noise reduction room around turbine 21 and fall the noise, thereby fall the noise with carrying out the second grade to the outside air and fall the noise, with the noise of work that the reduction turbine 21 during operation produced, further improve the noise reduction effect, in order to improve the travelling comfort when the breathing machine uses. It is understood that the first and second noise reduction chambers 23 and 24 can be muffled by providing a sound-deadening structure such as sound-deadening cotton therein, which can be selected by those skilled in the art according to specific situations and will not be described herein.
Further, the electric air assembly 20 further comprises a first check valve 25, wherein the first check valve 25 is connected between the second noise reduction chamber 24 and the air output assembly 40 to guide the mixed air to flow to the air output assembly 40; wherein, the first check valve 25 is connected between the second noise reduction chamber 24 and the gas output assembly 40, so as to prevent the mixed gas from flowing back into the second noise reduction chamber 24, and further improve the safety of the use of the gas path system 100.
Optionally, the electric air assembly 20 further comprises a first flow sensor 26, the first flow sensor 26 being connected to the outside air interface 22 for monitoring the flow of the outside air interface 22; wherein, the first flow sensor 26 is arranged for detecting the flow of the external air interface 22 in real time, so that the medical staff can adjust the operation speed of the turbine 21 according to the flow of the first flow sensor 26, and further adjust the external air proportion of the mixed gas.
Optionally, the electric air assembly 20 further comprises a first filter 27, the first filter 27 being connected between the ambient air interface 22 and the first noise reduction chamber 23 for filtering the ambient air passing through the ambient air interface 22. Wherein, in order to improve the security of using, can fall the room 23 through setting up the filter between outside air interface 22 and the first to filter the harmful substance in the outside air, and then avoid the harmful substance in the outside air to flow to patient after mixing, with the security of further guaranteeing the treatment.
In an embodiment of the present application, referring to fig. 1 in combination, the pneumatic air assembly 30 further includes a first pressure reducing valve 33, the first pressure reducing valve 33 is electrically connected to the first pressure sensor 32, and the first pressure reducing valve 33 is communicated with the cylinder interface 31 for reducing the pressure of the gas passing through the cylinder interface 31; because the pressure of the therapeutic gas required by different patients is different, the gas in the gas cylinder interface 31 can be adjusted to be decompressed according to the treatment requirement of the patients by arranging the first decompression valve 33, so that the gas pressure meeting the treatment requirement of the patients is achieved, and the treatment effect is improved.
Optionally, the pneumatic air assembly 30 further includes a first proportional valve 34, the first proportional valve 34 is communicated with the gas cylinder interface 31 and the oxygen supply assembly 10, the first proportional valve 34 is used for regulating the flow rate of the gas passing through the gas cylinder interface 31, and outputting the gas after being mixed with the oxygen of the oxygen supply assembly 10 to the gas output assembly 40; wherein, because the oxygen concentration of the therapeutic gas that different patients need is different, in order to improve treatment, when this external high-pressure gas cylinder in gas cylinder interface 31, in order to adjust the oxygen concentration of the gaseous oxygen after mixing, so can adjust the flow through the gaseous flow of gas cylinder interface 31 through first proportional valve 34 to this oxygen concentration of the gaseous oxygen after controlling the mixture, with the oxygen concentration that needs when satisfying different patients' treatment.
Optionally, the pneumatic air assembly 30 further comprises a second filter 35, the second filter 35 being connected to the cylinder interface 31 for filtering the gas passing through the cylinder interface 31. Wherein, in order to improve the security of using, can be through setting up second filter 35 at gas cylinder interface 31 to filter the harmful substance in the external gas, and then avoid flowing to patient after the harmful substance in the gas mixes, with the security of further guaranteeing the treatment.
Referring to fig. 1, in an embodiment of the present application, the oxygen supply assembly 10 includes a high pressure oxygen socket 11, a low pressure oxygen socket 12, an air supply switching valve 13 and an oxygen three-way valve 14, the air supply switching valve 13 is respectively communicated with the high pressure oxygen socket 11 and the low pressure oxygen socket 12 for switching conduction of the high pressure oxygen socket 11 and the low pressure oxygen socket 12, and the oxygen three-way valve 14 is respectively communicated with the air supply switching valve 13, the electric air assembly 20 and the pneumatic air assembly 30 for respectively communicating an air outlet of the air supply switching valve 13 with the electric air assembly 20 or the pneumatic air assembly 30. Wherein, because different oxygen concentration is different to the treatment effect, when high pressure oxygen and low pressure oxygen access simultaneously when using, air supply diverter valve 13 can automatic switch over the high pressure oxygen input to make the breathing machine priority use high pressure oxygen. And on the contrary, when the high-pressure oxygen is not connected into the gas circuit, the low-pressure oxygen is connected into the gas circuit and the breathing machine works by using the low-pressure oxygen. And then make the breathing machine can connect the oxygen gas cylinder of multiple air supply specification simultaneously to select corresponding gas circuit to switch on according to the treatment demand, improve the convenience that the breathing machine used, expand the usable floor area of breathing machine. And the oxygen three-way valve 14 is respectively communicated with the electric air assembly 20 and the pneumatic air assembly 30, so that the corresponding opening of the oxygen three-way valve 14 can be opened according to the corresponding air assembly, for example, when the turbine 21 works, the oxygen three-way valve 14 is selectively switched to open the valve port A, close the valve port B, and oxygen is directly connected into the second noise reduction chamber 24 and flows into a subsequent gas path component after being mixed with air. On the contrary, when the turbine 21 does not work, the oxygen three-way valve 14 switches the valve port a to be closed, the valve port B to be opened, and the oxygen is mixed with the gas in the pneumatic air assembly 30 and then flows into the subsequent gas path component. Therefore, the oxygen supply assembly 10 can open the corresponding valve ports according to the selection of the electric air assembly 20 and the pneumatic air assembly 30, and the operation is more intelligent.
In addition, with reference to fig. 2 and 3, the air supply switching valve 13 includes a valve main body 131 and a valve core 1322 assembly 132, wherein an air passing cavity 131 is formed in the valve main body 131, and the valve main body 131 is opened with a first air flow channel 131B, a second air flow channel 131C and an air outlet channel 131D which are communicated with the air passing cavity 131; the valve core 1322 assembly 132 is movably disposed in the air passing cavity 131 and moves between the first air flow channel 131B and the second air flow channel 131C, so as to block the communication between the first air flow channel 131B and the air outlet channel 131D or block the communication between the second air flow channel 131C and the air outlet channel 131D. It is understood that the valve body 1322 may be directly driven by the gas pressure to move back and forth in the valve body 131 to selectively block the communication between the first gas flow channel 131B and the gas outlet channel 131D or the communication between the second gas flow channel 131C and the gas outlet channel 131D, but the valve body 1322 may also be driven by the user manually or electrically to move back and forth in the valve body 131. The valve body 1322 assembly 132 may be selectively closed by sliding with respect to the valve body 131, or by rotating with respect to the valve body 131, and may be specifically selected by those skilled in the art according to the specific circumstances.
Further, the air passing cavity 131 includes a first cavity segment 131a, a second cavity segment 131B and a third cavity segment 131C connected in sequence, the first air flow channel 131B is communicated with the first cavity segment 131a, the second air flow channel 131C is communicated with the third cavity segment 131C, the air outlet channel 131D is communicated with the second cavity segment 131B, and the valve core 1322 assembly 132 is slidably connected with the valve body 131 to slidably block the conduction between the second cavity segment 131B and the third cavity segment 131C or to slidably block the conduction between the first cavity segment 131a and the second cavity segment 131B. The first cavity segment 131a, the second cavity segment 131b, and the third cavity segment 131c are sequentially arranged in a straight line, and the air outlet channel 131D is connected to the second cavity segment 131b, so as to facilitate processing and make the whole oxygen switching valve compact, thereby avoiding the whole volume of the oxygen switching valve from being too large. Meanwhile, when high-pressure oxygen and low-pressure oxygen are simultaneously introduced into the gas path, the pressure will act against the valve spool 1322 assembly 132 to move downward. Therefore, the valve element 1322 assembly 132 is pushed towards the second gas flow channel 131C to block the conduction of the second gas flow channel 131C and the gas outlet channel 131D, so as to keep the first gas flow channel 131B in a state of preferential conduction, when the gas in the first gas flow channel 131B is completely supplied, the second gas flow channel 131C pushes the valve element 1322 assembly 132 to push towards the first gas flow channel 131B again to block the conduction of the first gas flow channel 131B and the gas outlet channel 131D, and the valve element 1322 assembly 132 can be arranged in the gas passing cavity 131 in a relative sliding manner, so as to play a role of sliding blocking, the installation manner is convenient, and the installation efficiency is improved. In addition, it should be noted that when the valve body 1322 assembly 132 is mainly pushed by the gas pressure, the cross-sectional area of the first gas flow channel 131B is larger than that of the second gas flow channel 131C, so that the gas flow capacity of the first gas flow channel 131B is larger, so as to ensure that the gas pressure will push the valve body 1322 assembly 132 to move toward the low-pressure oxygen gas flow channel.
Further, the valve element 1322 assembly 132 includes an elastic member 1321, a valve element 1322, a first sealing member 1323 and a second sealing member 1324, wherein the elastic member 1321 is disposed in the third chamber section 131c and fixed to the valve main body 131; the spool 1322 is reciprocally slidable between the first chamber segment 131a, the second chamber segment 131b, and the third chamber segment 131c, and elastically abuts against the elastic member 1321; the first sealing member 1323 is sleeved on the valve element 1322, so as to be driven by the valve element 1322 to move between the first cavity segment 131a and the second cavity segment 131b, so as to block the conduction of the first cavity segment 131a and the second cavity segment 131 b; the second sealing member 1324 is sleeved on the valve element 1322, so as to move between the second cavity segment 131b and the third cavity segment 131c under the driving of the valve element 1322, so as to block the conduction between the second cavity segment 131b and the third cavity segment 131 c. The elastic element 1321 may be a spring, one end of the spring is fixed in the third cavity segment 131c of the valve body 131, the valve element 1322 is connected to the other end of the spring, and the first sealing member 1323 and the second sealing member 1324 may be sealing washers, so as to be sleeved on the outer side wall of the valve element 1322.
When the first air flow channel 131B of the oxygen switching valve does not receive high pressure oxygen, only when the second air flow channel 131C receives low pressure oxygen, and the spring is in an uncompressed state, and the spring pushes against the valve core 1322, so that the first sealing member 1323 blocks the conduction between the first cavity segment 131a and the second cavity segment 131B, and the second air flow channel 131C is communicated with the air outlet channel 131D, so that the low pressure oxygen is output from the air outlet channel 131D;
when the second flow channel 131C of the oxygen switching valve does not receive low-pressure oxygen, only when the first flow channel 131B receives high-pressure oxygen, the spring is compressed by the high-pressure oxygen flow, so that the valve element 1322 slides toward the second flow channel 131C, and the second sealing member 1324 blocks the communication between the second cavity section 131B and the third cavity section 131C, so that the high-pressure oxygen is output from the outlet channel 131D;
when the high pressure oxygen and the low pressure oxygen are respectively and simultaneously connected to the first air flow channel 131B and the second air flow channel 131C of the oxygen switching valve, due to the higher pressure of the high pressure oxygen, the compression spring is deformed first, and the valve core 1322 slides toward the second air flow channel 131C, so that the second sealing member 1324 blocks the conduction between the second cavity section 131B and the third cavity section 131C, and the high pressure oxygen is output from the air outlet channel 131D. After the high pressure oxygen is supplied, the external force applied to the spring deformation disappears, so that the spring is reset and the valve body 1322 slides toward the first air flow channel 131B again under the pushing of the low pressure oxygen flow, so that the first sealing member 1323 blocks the conduction between the first cavity segment 131a and the second cavity segment 131B, and the second air flow channel 131C is communicated with the air outlet channel 131D, so that the low pressure oxygen is output from the air outlet channel 131D.
With reference to fig. 2 and 3, in an embodiment of the present application, the valve main body 131 includes a housing 1311 and a bottom cover 1312, the housing 1311 is opened with a relief port, the bottom cover 1312 is covered on the relief port, the bottom cover 1312 and the housing 1311 cooperate to form the air passing cavity 131, and the side wall of the housing 1311 is opened with the first air flow channel 131B, the second air flow channel 131C and the air outlet channel 131D. The bottom cover 1312 may be fixed to the housing 1311 by a screw connection manner to enclose the air passing cavity 131, and the fixing manner is simple in installation and operation and easy to detach, so that the valve element 1322 assembly 132 may be installed in the housing 1311 through the relief opening, and then the bottom cover 1312 is covered to facilitate subsequent maintenance of the valve element 1322 assembly 132. Of course, in other embodiments, the bottom cover 1312 may be fixed to the housing 1311 by a pin connection, a rivet connection, or other connection methods commonly used in the art.
Further, the first air flow channel 131B, the air outlet channel 131D, and the second air flow channel 131C are sequentially disposed along the housing 1311 toward the bottom cover 1312; the oxygen switching valve further includes an auxiliary sealing member 133, and the auxiliary sealing member 133 is connected to a side of the valve spool 1322 assembly 132 facing the bottom cover 1312 to reciprocate between the second gas flow path 131C and the relief port. In order to ensure the sealing performance of the air passing chamber 131, the auxiliary sealing member 133 is disposed on the side of the valve body 1322 assembly 132 facing the bottom cover 1312, so that the air flow in the air passing chamber 131 can be prevented from flowing out from the direction of the abdicating opening, thereby ensuring the stability of the air flow and improving the reliability of the use of the oxygen switching valve.
In an embodiment of the present application, referring to fig. 2 and 3, the oxygen switching valve further includes a high pressure oxygen inlet pipe 134, a low pressure oxygen inlet pipe 135 and an outlet pipe 136, wherein the high pressure oxygen inlet pipe 134 is connected to the valve main body 131 and is communicated with the first air flow channel 131B; the low pressure oxygen intake pipe 135 is connected to the valve main body 131 and communicates with the second gas flow path 131C; the low pressure oxygen inlet pipe body 135 is connected to the valve main body 131 and communicates with the outlet passage 131D. Wherein, this high pressure oxygen body 134, low pressure oxygen body 135 and body 136 of giving vent to anger can set up as an organic whole with valve main part 131, so in order to guarantee oxygen diverter valve overall structure's stability and support intensity. The high pressure oxygen inlet pipe 134, the low pressure oxygen inlet pipe 135 and the outlet pipe 136 are disposed outside the valve body 131 and respectively communicate with the first air flow channel 131B, the second air flow channel 131C and the outlet channel 131D, so that the oxygen switching valve is convenient to connect with other connecting components, and the installation efficiency is improved.
Further, the high pressure oxygen intake pipe 134 and the low pressure oxygen intake pipe 135 are located on the same side of the valve body 131. Wherein this high pressure oxygen intake pipe body 134 and low pressure oxygen intake pipe body 135 lie in the same one side of valve main part 131 with one side, so that medical personnel when connecting the oxygen gas cylinder, can only in one side of valve main part 131 alright with operate, the efficiency of oxygen diverter valve installation is improved in the operation of being convenient for.
Further, the inlet of the high pressure oxygen inlet pipe 134 is oriented opposite the inlet of the low pressure oxygen inlet pipe 135; it can be understood that when the high pressure oxygen cylinder and the low pressure oxygen cylinder are connected simultaneously respectively, the pipelines of the two are easily interfered with each other, so that the orientation of the air inlet of the high pressure oxygen inlet pipe 134 and the orientation of the air inlet of the low pressure oxygen inlet pipe 135 are oppositely arranged, so as to avoid the pipeline of the high pressure oxygen cylinder and the pipeline of the low pressure oxygen cylinder extending towards different directions during installation, and further avoid the interference of the two, so as to further improve the stability of the oxygen switching valve in use.
Optionally, the outlet pipe 136 and the high pressure oxygen inlet pipe 134 are disposed on opposite sides of the valve body 131. Wherein, this body 136 of giving vent to anger sets up the relative both sides of valve main part 131 respectively with high-pressure oxygen body 134, so make the direction of admitting air and give vent to anger the direction symmetry to more be convenient for medical personnel to carry out the accuracy and install, and can not mutual interference when connecting, improve oxygen diverter valve's usability.
In an embodiment of the present application, referring to fig. 1 in combination, the oxygen supply assembly 10 further includes a second pressure sensor 15 and a second pressure reducing valve 16 connected to each other, where the second pressure sensor 15 and the second pressure reducing valve 16 are both communicated with the gas source switching valve 13, the second pressure sensor 15 is configured to detect oxygen at the gas outlet of the gas source switching valve 13, and the second pressure reducing valve 16 is configured to reduce the pressure of the oxygen passing through the gas source switching valve 13; wherein, because the pressure intensity of the oxygen gas required by different patients is different, the second pressure sensor 15 is arranged to detect the pressure intensity of the oxygen gas input through the gas outlet of the gas source switching valve 13, and the second pressure reducing valve 16 is arranged to adjust the oxygen gas according to the treatment requirement of the patient for pressure reduction, so as to meet the oxygen pressure intensity of the treatment requirement of the patient and improve the treatment effect.
Optionally, the oxygen supply assembly 10 further includes a second flow sensor 17 and a second proportional valve 18 connected to each other, the second flow sensor 17 is communicated with the gas source switching valve 13 for monitoring the oxygen flow at the outlet of the gas source switching valve 13, and the second proportional valve 18 is disposed between the gas source switching valve 13 and the oxygen three-way valve 14 for regulating the oxygen flow from the gas source switching valve 13 to the oxygen three-way valve 14. Wherein, because the oxygen concentration of the therapeutic gas required by different patients is different, in order to improve the therapeutic effect, the flow value of the oxygen can be detected in real time by arranging the second flow sensor 17, and the flow of the oxygen can be adjusted by the second proportional valve 18, so as to control the oxygen concentration of the mixed gas, thereby meeting the oxygen concentration required by different patients during therapy.
Referring to fig. 1, in an embodiment of the present application, the gas output assembly 40 includes a third flow sensor 41, an air-oxygen mixer 42 and a suction valve 43, the third flow sensor 41 being in communication with the electric air assembly 20 and the pneumatic air assembly 30, respectively, for receiving the mixed gas; the air-oxygen mixer 42 is communicated with the third flow sensor 41, and is electrically connected to the oxygen supply assembly 10, the electric air assembly 20, and the pneumatic air assembly 30, respectively, and the air-oxygen mixer 42 is configured to detect an oxygen concentration of the mixed gas, and feedback-control the oxygen supply assembly 10, the electric air assembly 20, and the pneumatic air assembly 30; the suction valve 43 communicates with the air-oxygen mixer 42. The third flow sensor 41 is used for detecting the flow of the mixed gas in real time, and the air-oxygen mixer 42 is used for detecting the oxygen concentration of the mixed gas, so that the medical staff can know the flow and the oxygen concentration of the gas for treating the patient in real time, and the medical staff can respectively adjust and control the flow and the flow rate of the oxygen supply assembly 10, the electric air assembly 20 and the pneumatic air assembly 30 according to the two values, so as to adjust the flow and the oxygen concentration of the mixed gas, so as to meet the treatment requirement required by the patient during treatment, and enter the lung of the patient through the inhalation valve 43, thereby completing the inhalation phase.
Further, the gas output assembly 40 further comprises a second one-way valve 44, and the second one-way valve 44 is respectively communicated with the air-oxygen mixer 42 and the suction valve 43, so as to guide the mixed gas to flow to the suction valve 43; in order to avoid the backflow of the mixed gas, a second check valve 44 is disposed between the air-oxygen mixer 42 and the air suction valve 43, so as to prevent the mixed gas from flowing back into the oxygen supply assembly 10, the electric air assembly 20 and the pneumatic air assembly 30, thereby further improving the safety of the use of the gas circuit system 100.
Optionally, the gas output assembly 40 further comprises a free breathing valve 45, and the free breathing valve 45 is connected between the air-oxygen mixer 42 and the inhalation valve 43 for receiving the flow of the external air to the inhalation valve 43. Wherein, the free breathing valve 45 is a one-way valve, and the air inlet end is connected with the atmosphere. When airway system 100 fails, fails to deliver gas to the patient, or is blocked, free breathing valve 45 is opened and the patient may inhale to prevent the patient from becoming a life hazard due to asphyxiation.
In an embodiment of the present application, referring to fig. 1, the gas circuit system 100 further includes an atomization three-way valve 50 and a first switch valve 60, which are connected to each other, the atomization three-way valve 50 is respectively communicated with the oxygen supply assembly 10 and the pneumatic air assembly 30, and the first switch valve 60 is used for being connected to an atomizer, so as to atomize the oxygen of the oxygen supply assembly 10 or the gas of the pneumatic air assembly 30 into the medicine in the atomizer; wherein, because the patient has the demand that needs additionally use the medicine to atomize and carry out the treatment at the in-process that uses the breathing machine to through setting up atomizing three-way valve 50 and the first ooff valve 60 that is connected, this atomizing three-way valve 50 can be the electromagnetism three-way valve, and this first ooff valve 60 is used for being connected with the atomizer, thereby the operator can set up what kind of gas (oxygen/air) of use as atomizing gas, atomizing three-way valve 50 can be according to setting up the selection switching with gas access first ooff valve 60. The atomizing three-way valve 50 can also default to a certain gas (oxygen/air) as the atomizing gas according to the setting, so that the valve of the gas leading to the path is kept normally open. The first switch valve 60 is opened or closed according to the instruction of the machine to realize the opening or closing of the atomization, so that the gas circuit system 100 has the atomization function and the usability of the breathing machine is improved.
Optionally, the airway system 100 further includes an exhalation valve 70, a second switch valve 80, and a fourth flow sensor 90, wherein the exhalation valve 70 is used for the patient to exhale, the fourth flow sensor 90 is connected to the exhalation valve 70 for detecting the gas flow of the exhalation valve 70, and the second switch valve 80 is respectively communicated with the fourth flow sensor 90 and the gas output assembly 40 for conducting the mixed gas of the gas output assembly 40 to the fourth flow sensor 90. It can be understood that, the gas in the lung of the patient is exhausted to the atmosphere through the exhalation valve 70 during exhalation to maintain the breathing cycle, and in order to detect the gas flow rate during exhalation of the patient, the fourth flow sensor 90 can be set simultaneously for detection, and because there is water vapor in the gas during exhalation of the patient, in order to ensure the accuracy of monitoring, simultaneously, the second switch valve 80 is connected to the gas output assembly 40 and the fourth flow sensor 90, the respirator can control the second switch valve 80 to be opened and closed periodically according to the set frequency, so that the gas flow of the gas output assembly 40 enters the fourth flow sensor 90, and the water in the fourth flow sensor 90 is blown out, so as to ensure the accuracy of the value measured by the fourth flow sensor 90.
The present invention further provides a ventilator, which includes an air path system 100, and the specific structure of the air path system 100 refers to the above embodiments, and since the ventilator adopts all the technical solutions of all the above embodiments, the ventilator at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a gas circuit system, is applied to the breathing machine which characterized in that, gas circuit system includes:
an oxygen supply assembly;
the electric air assembly is connected with the oxygen supply assembly and comprises a turbine, and the turbine is used for sucking outside air, pressurizing the outside air and mixing the outside air with oxygen output by the oxygen supply assembly;
the pneumatic air assembly is connected with the oxygen supply assembly and comprises a gas cylinder interface and a first pressure sensor which are connected, the pneumatic air assembly is used for mixing gas of the gas cylinder interface with oxygen of the oxygen supply assembly, the first pressure sensor is electrically connected with the turbine, and the first pressure sensor is used for detecting the gas of the gas cylinder interface and controlling the turbine in a feedback mode; and
and the gas output assembly is respectively connected with the electric air assembly and the pneumatic air assembly and is used for receiving and outputting the mixed gas.
2. The air circuit system of claim 1, wherein the electrically powered air assembly comprises an ambient air interface, a first noise reduction chamber and a second noise reduction chamber, the first noise reduction chamber is communicated with the air inlet, the second noise reduction chamber is connected with the first noise reduction chamber through the turbine, the second noise reduction chamber is connected with the oxygen supply assembly, the turbine sucks in the ambient air, sequentially passes through the ambient air interface, the first noise reduction chamber and the second noise reduction chamber, and is mixed with oxygen in the oxygen supply assembly in the second noise reduction chamber and then outputs the mixture to the gas output assembly.
3. The air circuit system of claim 2, wherein the electrical air assembly further comprises a first check valve coupled between the second noise reduction chamber and the air output assembly to direct the mixed air to the air output assembly;
and/or the electric air assembly further comprises a first flow sensor connected with the outside air interface for monitoring the flow of the outside air interface;
and/or, the electric air assembly further comprises a first filter connected between the ambient air interface and the first noise reduction chamber for filtering ambient air passing through the ambient air interface.
4. The gas circuit system of claim 1, wherein the pneumatic air assembly further comprises a first pressure reducing valve electrically connected to the first pressure sensor, the first pressure reducing valve in communication with the gas cylinder interface for reducing the pressure of the gas passing through the gas cylinder interface;
and/or the pneumatic air assembly further comprises a first proportional valve, the first proportional valve is communicated with the gas cylinder interface and the oxygen supply assembly, and the first proportional valve is used for adjusting the flow of gas passing through the gas cylinder interface, mixing with oxygen of the oxygen supply assembly and outputting the mixture to the gas output assembly;
and/or the pneumatic air assembly further comprises a second filter connected to the cylinder interface for filtering gas passing through the cylinder interface.
5. The gas circuit system of claim 1, wherein the oxygen supply assembly comprises a high pressure oxygen socket, a low pressure oxygen socket, a gas source switching valve, and an oxygen three-way valve, the gas source switching valve is respectively communicated with the high pressure oxygen socket and the low pressure oxygen socket for switching the communication between the high pressure oxygen socket and the low pressure oxygen socket, and the oxygen three-way valve is respectively communicated with the gas source switching valve, the electric air assembly, and the pneumatic air assembly for respectively communicating the gas outlet of the gas source switching valve with the electric air assembly or the pneumatic air assembly.
6. The gas circuit system of claim 5, wherein the oxygen supply assembly further comprises a second pressure sensor and a second pressure reducing valve connected to each other, the second pressure sensor and the second pressure reducing valve are both in communication with the gas source switching valve, the second pressure sensor is configured to detect oxygen at the gas outlet of the gas source switching valve, and the second pressure reducing valve is configured to reduce the pressure of the oxygen passing through the gas source switching valve;
and/or, the oxygen suppliment subassembly still includes second flow sensor and the second proportional valve that is connected, the second flow sensor all with the air supply diverter valve intercommunication for be used for monitoring the oxygen flow of the export of air supply diverter valve, the second proportional valve sets up between the air supply diverter valve and the oxygen three-way valve, in order to be used for adjusting the oxygen flow who flows to the oxygen three-way valve from the air supply diverter valve.
7. The gas circuit system of claim 1, wherein the gas output assembly comprises:
a third flow sensor in communication with the electric air assembly and the pneumatic air assembly, respectively, for receiving the mixed gas;
an air-oxygen mixer, which is communicated with the third flow sensor and is electrically connected with the oxygen supply component, the electric air component and the pneumatic air component respectively, and is used for detecting the oxygen concentration of the mixed gas and performing feedback control on the oxygen supply component, the electric air component and the pneumatic air component; and
an air suction valve in communication with the air-oxygen mixer.
8. The gas circuit system of claim 7, wherein the gas output assembly further comprises a second one-way valve in communication with the air-oxygen mixer and the inhalation valve, respectively, for directing the mixed gas to flow to the inhalation valve;
and/or the gas output assembly further comprises a free breathing valve, and the free breathing valve is connected between the air-oxygen mixer and the inhalation valve and is used for receiving the flow of the outside air to the inhalation valve.
9. The gas circuit system according to any one of claims 1 to 8, further comprising an atomization three-way valve and a first switch valve connected to each other, wherein the atomization three-way valve is respectively communicated with the oxygen supply assembly and the pneumatic air assembly, and the first switch valve is used for being connected to an atomizer so as to atomize the oxygen of the oxygen supply assembly or the gas of the pneumatic air assembly into the medicine in the atomizer;
and/or the gas circuit system further comprises an exhalation valve, a second switch valve and a fourth flow sensor, wherein the exhalation valve is used for the patient to exhale, the fourth flow sensor is connected with the exhalation valve and used for detecting the gas flow of the exhalation valve, and the second switch valve is respectively communicated with the fourth flow sensor and the gas output assembly and used for conducting the mixed gas of the gas output assembly to the fourth flow sensor.
10. A ventilator comprising a pneumatic circuit system as claimed in any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110868535.0A CN113577477A (en) | 2021-07-29 | 2021-07-29 | Gas circuit system and breathing machine |
| PCT/CN2022/079281 WO2023005207A1 (en) | 2021-07-29 | 2022-03-04 | Air path system and ventilator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110868535.0A CN113577477A (en) | 2021-07-29 | 2021-07-29 | Gas circuit system and breathing machine |
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| CN113577477A true CN113577477A (en) | 2021-11-02 |
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| CN202110868535.0A Pending CN113577477A (en) | 2021-07-29 | 2021-07-29 | Gas circuit system and breathing machine |
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| CN (1) | CN113577477A (en) |
| WO (1) | WO2023005207A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113769214A (en) * | 2021-08-23 | 2021-12-10 | 河南辉瑞生物医电技术有限公司 | Control system of breathing machine |
| CN114796781A (en) * | 2022-03-29 | 2022-07-29 | 深圳市安保医疗科技股份有限公司 | Breathing machine system |
| WO2023005207A1 (en) * | 2021-07-29 | 2023-02-02 | 深圳市安保科技有限公司 | Air path system and ventilator |
| CN118576841A (en) * | 2024-06-14 | 2024-09-03 | 广州蓝仕威克医疗科技有限公司 | A gas circuit structure, device and gas circuit flow rate adjustment method for a gas poisoning ventilator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202822399U (en) * | 2012-10-29 | 2013-03-27 | 北京航天长峰股份有限公司 | Anesthesia air channel with reversing valve |
| CN104548296A (en) * | 2014-12-31 | 2015-04-29 | 深圳市心之星医疗技术有限公司 | Air channel control device of breathing machine |
| CN106470725A (en) * | 2014-07-04 | 2017-03-01 | 欧根·卡根 | breathing apparatus |
| CN110694155A (en) * | 2019-10-25 | 2020-01-17 | 珠海福尼亚医疗设备有限公司 | Breathing device and breathing machine |
| CN211658975U (en) * | 2019-12-19 | 2020-10-13 | 深圳哈维生物医疗科技有限公司 | Gas circuit with multiple gas source branches and breathing machine thereof |
| CN216258620U (en) * | 2021-07-29 | 2022-04-12 | 深圳市安保科技有限公司 | Gas circuit system and breathing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0282675A3 (en) * | 1986-11-04 | 1990-01-03 | Bird Products Corporation | Flow control valve for a medical ventilator |
| CN202387074U (en) * | 2011-11-28 | 2012-08-22 | 李保端 | Portable respirator |
| EP3682930B1 (en) * | 2017-09-13 | 2022-11-02 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Ventilator for gas supply control |
| CN110464933A (en) * | 2019-07-10 | 2019-11-19 | 湖南明康中锦医疗科技发展有限公司 | Breathing Suppotion equipment air flue and safety control system and control method |
| CN113577477A (en) * | 2021-07-29 | 2021-11-02 | 深圳市安保科技有限公司 | Gas circuit system and breathing machine |
-
2021
- 2021-07-29 CN CN202110868535.0A patent/CN113577477A/en active Pending
-
2022
- 2022-03-04 WO PCT/CN2022/079281 patent/WO2023005207A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202822399U (en) * | 2012-10-29 | 2013-03-27 | 北京航天长峰股份有限公司 | Anesthesia air channel with reversing valve |
| CN106470725A (en) * | 2014-07-04 | 2017-03-01 | 欧根·卡根 | breathing apparatus |
| CN104548296A (en) * | 2014-12-31 | 2015-04-29 | 深圳市心之星医疗技术有限公司 | Air channel control device of breathing machine |
| CN110694155A (en) * | 2019-10-25 | 2020-01-17 | 珠海福尼亚医疗设备有限公司 | Breathing device and breathing machine |
| CN211658975U (en) * | 2019-12-19 | 2020-10-13 | 深圳哈维生物医疗科技有限公司 | Gas circuit with multiple gas source branches and breathing machine thereof |
| CN216258620U (en) * | 2021-07-29 | 2022-04-12 | 深圳市安保科技有限公司 | Gas circuit system and breathing machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005207A1 (en) * | 2021-07-29 | 2023-02-02 | 深圳市安保科技有限公司 | Air path system and ventilator |
| CN113769214A (en) * | 2021-08-23 | 2021-12-10 | 河南辉瑞生物医电技术有限公司 | Control system of breathing machine |
| CN114796781A (en) * | 2022-03-29 | 2022-07-29 | 深圳市安保医疗科技股份有限公司 | Breathing machine system |
| CN118576841A (en) * | 2024-06-14 | 2024-09-03 | 广州蓝仕威克医疗科技有限公司 | A gas circuit structure, device and gas circuit flow rate adjustment method for a gas poisoning ventilator |
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| Publication number | Publication date |
|---|---|
| WO2023005207A1 (en) | 2023-02-02 |
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