CN110575596B - Intermittent high and low oxygen training system - Google Patents
Intermittent high and low oxygen training system Download PDFInfo
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- CN110575596B CN110575596B CN201910947616.2A CN201910947616A CN110575596B CN 110575596 B CN110575596 B CN 110575596B CN 201910947616 A CN201910947616 A CN 201910947616A CN 110575596 B CN110575596 B CN 110575596B
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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
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
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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
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Abstract
The invention discloses an intermittent high-low oxygen training system, which comprises oxygen-containing gas generating equipment and breathing training equipment, wherein the oxygen-containing gas generating equipment comprises an oxygen generating device, and the oxygen generating device comprises a first air inlet, an oxygen outlet and a nitrogen-rich gas outlet; the breathing training equipment comprises a gas mixing device and a breathing mask, wherein the gas mixing device is provided with a gas mixing valve; the gas mixing valve comprises a first mixed gas outlet, a second air inlet, an oxygen inlet communicated with the oxygen outlet and a nitrogen-rich gas inlet communicated with the nitrogen-rich gas outlet, wherein the second air inlet, the oxygen inlet and the nitrogen-rich gas inlet are all provided with opening and closing pieces, and the breathing mask is communicated with the first mixed gas outlet of the gas mixing valve. Because only the oxygen generating device is arranged, the mixed gas is prepared by using oxygen, nitrogen-rich gas and air, and the cost of intermittent high-low oxygen training is reduced.
Description
Technical Field
The invention relates to the field of hypoxia respiration training, in particular to an intermittent hypoxia and high oxygen training system.
Background
Intermittent hypoxia training (Interval hypoxia training, IHT) is a method of respiratory training that simulates a hypoxic, high pressure respiratory environment. Intermittent hypoxia training has obvious therapeutic effects on cardiovascular system and metabolic diseases and improving human brain cognition, and has wide application.
Currently, in a system used for intermittent hypoxia training, a gas making device generally comprises an oxygen making device and a nitrogen making device, which are respectively used for preparing oxygen and nitrogen, then the prepared oxygen and nitrogen are mixed to obtain mixed gas with required oxygen concentration, and waste gas generated by preparing the oxygen and the nitrogen is directly discharged. The oxygen generating device and the nitrogen generating device are respectively arranged, so that the cost of intermittent hypoxia training is high.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide an intermittent high-low oxygen training system, and aims to solve the technical problem that the cost of generating oxygen and nitrogen by arranging an oxygen generating device and a nitrogen generating device respectively and then generating mixed gas by utilizing the oxygen and the nitrogen is high in the current low-oxygen training system.
To achieve the above object, the present invention provides an intermittent high-low oxygen training system comprising an oxygen-containing gas generating apparatus and a respiration training apparatus, wherein,
The oxygen-containing gas generating device comprises an oxygen generating device, wherein the oxygen generating device comprises a first air inlet, an oxygen outlet and a nitrogen-rich gas outlet;
The respiratory training equipment comprises a gas mixing device and a breathing mask, wherein the gas mixing device is provided with a gas mixing valve communicated with the breathing mask and the oxygen generating device; the gas mixing valve comprises a first mixed gas outlet, a second air inlet, an oxygen inlet communicated with the oxygen outlet and a nitrogen-rich gas inlet communicated with the nitrogen-rich gas outlet, wherein the second air inlet, the oxygen inlet and the nitrogen-rich gas inlet are all provided with opening and closing pieces, and the breathing mask is communicated with the first mixed gas outlet of the gas mixing valve.
Preferably, the respiratory training system is further provided with a gas quality adjusting member connected in series between the mixed gas outlet and the respiratory mask, the gas quality adjusting member including at least one of a gas humidifier, a gas fragrancer and a negative ion generator.
Preferably, the gas mixing device further comprises a gas mixing cavity communicated with the gas mixing valve and the breathing mask, the gas mixing cavity comprises a mixed gas inlet communicated with the first mixed gas outlet and a second mixed gas outlet communicated with the breathing mask, and the breathing training device further comprises a gas storage cavity communicated with the gas mixing cavity.
Preferably, the gas mixing cavity further comprises a gas pressure balance opening, the gas pressure balance opening is communicated with a gas pressure balance valve, and when the gas pressure balance valve is opened, the gas mixing cavity is communicated with the outside air.
Preferably, the oxygen-containing gas generating apparatus further comprises an oxygen purification device connected between the oxygen outlet of the oxygen generating device and the oxygen inlet of the gas mixing valve.
Preferably, the oxygen-containing gas generating device further comprises an air compressor and an air processing piece connected in series with the first air inlet, the air processing piece comprises at least one of a first air purifying device, an air drying device and an air cooling device, the second air inlet is further provided with a second air purifying device, an oxygen storage device is further arranged between the oxygen outlet and the oxygen inlet, and the oxygen storage device is communicated with the outside air through an air pressure regulating valve.
Preferably, the intermittent high-low oxygen training system further comprises a controller, wherein the controller is connected with the gas mixing valve and used for controlling the opening degree of the opening and closing piece of the gas mixing valve.
Preferably, the intermittent high-low oxygen training system further comprises a wearable device, the wearable device is connected with the controller, the wearable device comprises a physiological parameter detection unit, the physiological parameter detection unit comprises at least one of a heart rate detection unit, a blood pressure detection unit, a blood oxygen detection unit, a brain oxygen detection unit and an electrocardio detection unit, and the controller is further used for adjusting the opening degree of the opening and closing piece of the gas mixing valve according to the physiological parameter detected by the wearable device.
Preferably, the intermittent high-low oxygen training system is further provided with a gas pump connected between the gas mixing valve and the breathing mask, the gas pump is connected with the controller, and the controller is further used for controlling operation parameters of the gas pump so as to adjust the gas pressure of the mixed gas output by the first mixed gas outlet of the gas mixing valve.
Preferably, an oxygen concentration sensor, a gas flow sensor and a pressure sensor are arranged between the oxygen outlet and the oxygen inlet, between the nitrogen-rich gas outlet and the nitrogen-rich gas inlet and between the second air inlet, and between the gas mixing device and the breathing mask, the oxygen concentration sensor, the gas flow sensor and the pressure sensor are connected with the controller, and the controller is further used for controlling the opening degree of the opening and closing member of the gas mixing valve according to the oxygen concentration, the gas flow and the air pressure.
The intermittent high-low oxygen training system comprises oxygen-containing gas generating equipment and breathing training equipment, wherein the oxygen-containing gas generating equipment comprises an oxygen generating device, and the oxygen generating device comprises a first air inlet, an oxygen outlet and a nitrogen-rich gas outlet; the respiratory training equipment comprises a gas mixing device and a breathing mask, wherein the gas mixing device is provided with a gas mixing valve communicated with the breathing mask and the oxygen generating device; the gas mixing valve comprises a first mixed gas outlet, a second air inlet, an oxygen inlet communicated with the oxygen outlet and a nitrogen-rich gas inlet communicated with the nitrogen-rich gas outlet, wherein the second air inlet, the oxygen inlet and the nitrogen-rich gas inlet are all provided with opening and closing pieces, and the breathing mask is communicated with the first mixed gas outlet of the gas mixing valve. According to the invention, as only the oxygen generating device is needed, the nitrogen generating device is not needed, the mixed gas is prepared by using air and the oxygen and nitrogen-rich gas prepared by the oxygen generating device, the waste gas generated by preparing the oxygen is fully utilized, and the cost of intermittent high-low oxygen training 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 that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an intermittent high-low oxygen training system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an alternative embodiment of an intermittent high-low oxygen training system of the present invention;
FIG. 3 is a schematic diagram of an intermittent high-low oxygen training system according to another embodiment of the present invention.
Description of the reference numerals
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, transverse, and longitudinal … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an intermittent high-low oxygen training system according to an embodiment of the present invention. The invention provides an intermittent high-low oxygen training system which is mainly used for intermittent high-low oxygen training. The intermittent high-low oxygen training system includes an oxygen-containing gas generating apparatus 100, a respiratory training apparatus 200, and a controller 300. The controller 300 may include an editable controller, or an intelligent controller, or the controller 300 may include an artificial intelligence (ARTIFICIAL INTELLIGENCE, AI) module, which performs intelligent control through AI. Optionally, the intermittent high-low oxygen training system further comprises a man-machine interaction module, wherein the man-machine interaction module comprises, but is not limited to, a display device, a keyboard, a mouse and the like; the man-machine interaction module is used for outputting the acquired data and receiving parameters input by a user. Wherein the oxygen-containing gas generating apparatus 100 comprises an oxygen generating device 110. The oxygen generator 110 may be a PSA (Pressure Swing Adsorption ) oxygen generator 110, or may be another oxygen generator 110. When the PSA oxygenerator 110 is used for preparing oxygen by absorbing and separating air, the PSA oxygenerator 110 is internally provided with a zeolite molecular sieve, the zeolite molecular sieve has high adsorptivity to nitrogen, absorbs nitrogen, carbon dioxide and the like under the pressurizing condition, oxygen is produced, and the nitrogen and the carbon dioxide absorbed after depressurization are released from the zeolite molecular sieve, so that nitrogen-rich gas is obtained. Further, in order to meet the requirement of continuously preparing oxygen or nitrogen-rich gas, the oxygen-containing gas generating apparatus 100 may include a plurality of PSA oxygen generating devices 110, for example, may include two PSA oxygen generating devices 110, and alternately cycle the oxygen generation to ensure sufficient oxygen-rich gas supply. The oxygen generating device 110 comprises a first air inlet 111, an oxygen outlet 112 and a nitrogen-rich gas outlet 113, wherein air enters the oxygen generating device 110 from the first air inlet 111 and is processed by the oxygen generating device 110 to generate oxygen and nitrogen-rich gas, the oxygen is output from the oxygen outlet 112, and the nitrogen-rich gas is output from the nitrogen-rich gas outlet 113.
The respiratory training apparatus 200 includes a gas mixing device (not shown) and a breathing mask 220, the gas mixing device being provided with a gas mixing valve 210 in communication with the breathing mask 220 and the oxygen generating device 110; the gas mixing valve 210 includes a first mixed gas outlet 114, a second air inlet 211, an oxygen inlet 212 that communicates with the oxygen outlet 112, and a nitrogen-rich gas inlet 213 that communicates with the nitrogen-rich gas outlet 113, wherein opening and closing members (such as a valve plate, a valve ball, or a valve rod, not shown) are installed on the second air inlet 211, the oxygen inlet 212, and the nitrogen-rich gas inlet 213, and the breathing mask 220 communicates with the first mixed gas outlet 214 of the gas mixing valve 210. When the opening and closing member is opened, the corresponding gas enters the gas mixing valve 210, and the flow of the corresponding gas can be controlled by adjusting the operation parameters (such as opening degree) of the opening and closing member, so that the oxygen concentration and the air pressure of the mixed gas are adjusted, the mixed gas with different oxygen concentrations is obtained, and the obtained mixed gas is output to the breathing mask 220 through the first mixed gas outlet 214, so that a user can perform breathing training. Optionally, when the mixed gas required for training is a mixed gas with high oxygen concentration, the mixed gas can be obtained by mixing oxygen and air, that is, closing the opening and closing member corresponding to the nitrogen-rich gas inlet 213, opening the opening and closing member corresponding to the oxygen gas inlet 212 and the second air inlet 211, and adjusting the opening of the opening and closing member to control the flow rate and the air flow rate of the oxygen gas, so that the oxygen gas and the air are mixed to obtain the mixed gas with high oxygen concentration; when the mixed gas has low oxygen concentration, the mixed gas can be obtained by mixing the nitrogen-rich gas and air, namely, the opening and closing parts corresponding to the oxygen gas inlet 212 are opened, the opening and closing parts corresponding to the nitrogen-rich gas inlet 213 and the second air inlet 211 are opened, and the opening of the opening and closing parts is adjusted to control the flow rate and the air flow rate of the nitrogen-rich gas, so that the nitrogen-rich gas and the air are mixed to obtain the mixed gas with low oxygen concentration. The opening degree of each opening and closing member is controlled by the controller 300, specifically, the controller 300 is connected with the gas mixing valve 230, and is used for sending a control command to the gas mixing valve 230, so that each opening and closing member of the gas mixing valve is opened and closed according to the control command.
In this embodiment, the intermittent high-low oxygen training system only needs to set an oxygen generating device, does not need to set a nitrogen generating device, and the mixed gas is prepared by using air and oxygen and nitrogen-rich gas prepared by the oxygen generating device, so that waste gas (nitrogen-rich gas) generated by preparing oxygen is fully utilized, and the cost of intermittent high-low oxygen training is reduced.
Further, the intermittent high-low oxygen training system provided in this embodiment further includes a wearable device (not shown in the figure), and the wearable device is connected to the controller 300 to send the collected physiological parameters of the user to the controller 300. The wearable device comprises a physiological parameter detection unit, wherein the physiological parameter detection unit comprises at least one of a heart rate detection unit, a blood pressure detection unit, a blood oxygen detection unit, a brain oxygen detection unit and an electrocardio detection unit. The wearable device is used for acquiring physiological parameters of a user, wherein the physiological parameters comprise at least one of heart rate, blood pressure, blood oxygen, brain oxygen and electrocardio. For example, the wearable device includes a finger-clip type blood oxygen heart rate detection module, an arm-worn electrocardiograph monitoring module, a brain oxygen detection module, and the like. The connection mode between the wearable device and the controller 300 may be a conventional data line connection mode, or may be a network connection mode such as 3G, 4G or 5G, or a bluetooth connection mode, which is not limited herein. The wearable device sends the collected physiological parameters of the user to the controller 300, which controller 300 receives the physiological parameters and may store and/or output the physiological parameters to the display device. In addition, the controller 300 may be further configured to adjust the opening of the opening and closing member of the gas mixing valve 210 according to the physiological parameters detected by the wearable device, for example, when one of the physiological parameters of the user is detected to be out of the range of the preset physiological parameters, the opening of the opening and closing member is adjusted to adjust the oxygen concentration of the mixed gas. Optionally, an encryption module and an anti-interference module can be further arranged on the wearable device, the encryption module is used for encrypting the acquired physiological parameters so as to improve the safety of the acquired physiological parameter transmission, and the anti-interference module is used for preventing the interference of the outside on the physiological parameter transmission so as to improve the accuracy of the physiological parameter transmission.
Further, the oxygen concentration of the mixed gas needs to be adjusted according to the oxygen concentration and flow rate of each gas, and the gas pressure is adjusted by adjusting the total flow rate of the gas. Therefore, referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of the intermittent high-low oxygen training system according to the present invention, and in the intermittent high-low oxygen training system provided by the present embodiment on the basis of fig. 1, an oxygen storage device 400 is further disposed between the oxygen outlet 112 and the oxygen inlet 212 for storing oxygen-enriched gas; optionally, the oxygen storage device 400 is also communicated with the outside air through a pressure regulating valve 170, and the pressure regulating valve 170 is used for regulating the system pressure. The oxygen concentration sensor 600 and the gas flowmeter 500 are disposed between the oxygen outlet 112 and the oxygen inlet 212, between the nitrogen-rich gas outlet 113 and the nitrogen-rich gas inlet 213, and between the second air inlet 211, and the second air inlet is further provided with a second air purifying device 160 for further purifying air and filtering out substances such as inhalable dust in the air. An oxygen concentration sensor, a gas flow sensor and a pressure sensor 700 are provided between the gas mixing device and the breathing mask 220. The oxygen concentration sensor 600, the gas flow meter 500, and the pressure sensor 700 are all connected to the controller 300 to transmit the collected gas parameter (at least one of oxygen concentration, gas flow, and gas pressure) to the controller 300. The oxygen concentration sensor 600 is used for detecting the oxygen concentration of air, the prepared oxygen, the nitrogen-rich gas and the mixed gas, respectively, and transmitting the detected oxygen concentration to the controller 300; the gas flow meter 500 is used for detecting the flow rates of the detected air, the prepared oxygen, the nitrogen-rich gas and the mixed gas, respectively, and transmitting the detected flow rates to the controller 300. The pressure sensor 700 is used to detect the air pressure of the mixed gas and transmit the detected air pressure to the controller 300.
The controller 300 is further configured to control the opening degree of the opening and closing member of the gas mixing valve 210 according to the oxygen concentration, the gas flow rate, and the gas pressure. Specifically, the controller 300 obtains training parameters including a target oxygen concentration, a target duration, and a target gas pressure of the mixture gas required for training. Optionally, the target air pressure is a standard atmospheric pressure. For example, the training parameters for intermittent high and low oxygen training may be a first preset oxygen concentration (low oxygen concentration) for a first preset time period, then a second preset oxygen concentration (high oxygen concentration) for a second preset time period, then a first preset oxygen concentration (low oxygen concentration) for a first preset time period again, and then cycling as described above until the training time period reaches the preset training time period. The target oxygen concentration of the mixed gas at each training time point can be determined according to the training parameters, the oxygen concentration of the oxygen, the nitrogen-rich gas and the air can be obtained in real time, the flow ratio of the oxygen, the nitrogen-rich gas and the air can be calculated according to the target oxygen concentration and the oxygen concentration of the oxygen, the nitrogen-rich gas and the air, and further, the total flow of the gas can be obtained according to the air pressure of the mixed gas. And according to the total flow of the gas and the flow ratio of the oxygen, the nitrogen-rich gas and the air, calculating to obtain target flow of the oxygen, the nitrogen-rich gas and the air, controlling the opening of the opening and closing piece corresponding to the oxygen, the nitrogen-rich gas and the air, and regulating the flow of the oxygen, the nitrogen-rich gas and the air to the target flow. The controller 300 acquires the oxygen concentration and the air pressure of the mixed gas in real time, and adjusts the oxygen, the nitrogen-rich gas, and the air according to the detected oxygen concentration and air pressure of the mixed gas.
Optionally, when the target oxygen concentration of the current mixed gas is high oxygen concentration, the mixed gas can be prepared by mixing oxygen and control, at this time, the opening and closing piece corresponding to the nitrogen-rich gas inlet 213 is adjusted to be communicated with the outside air, the nitrogen-rich gas is directly discharged into the outside air, and the flow ratio of the oxygen to the air can be calculated through the target oxygen concentration, the oxygen concentration of the oxygen and the oxygen concentration of the air; and the total flow of the gas is calculated according to the gas pressure of the mixed gas, the target flow of the oxygen and the air can be obtained according to the flow ratio of the oxygen and the air and the total flow of the gas, the flow of the oxygen and the air is regulated to the corresponding target flow by controlling the opening of the opening and closing piece corresponding to the oxygen inlet 212 and the second air, and meanwhile, the pressure of the system is regulated by regulating the opening of the gas pressure regulating valve 170. When the current target oxygen concentration is low oxygen concentration, the mixed gas can be obtained by mixing nitrogen-rich gas and air, at the moment, the opening and closing piece corresponding to the oxygen inlet 212 is closed, and the flow ratio of the nitrogen-rich gas to the air can be calculated through the target oxygen concentration, the oxygen concentration of the nitrogen-rich gas and the oxygen concentration of the air; and the total gas flow is calculated according to the gas pressure of the mixed gas, the target flow of the nitrogen-rich gas and the air can be obtained according to the flow ratio of the nitrogen-rich gas and the air and the total gas flow, and the flow of the nitrogen-rich gas and the air is regulated to the corresponding target flow by controlling the opening degree of the opening and closing piece corresponding to the nitrogen-rich gas inlet 213 and the second air inlet 211. Simultaneously, the oxygen concentration and the air pressure of the mixed gas are detected in real time, and the opening and closing piece is regulated according to the detected difference of the oxygen concentration and the target oxygen concentration and the detected difference of the air pressure and the target air pressure.
For example, the gas treated by the second air cleaning device 160 is air, the oxygen content is about 21%, and the evolved air may enter the gas mixing valve 210 through the second air inlet 221; the oxygen content of the oxygen-enriched gas prepared by the oxygen generating device 110 is 85% -90%, and the oxygen content of the obtained nitrogen-enriched gas is 10% -15%. Oxygen-enriched gas with the oxygen content of 85% -90% enters the oxygen storage device 400, and the oxygen-enriched gas in the oxygen storage device 400 can enter the gas mixing valve through the oxygen inlet 212, and can be directly discharged into the air through the air pressure regulating valve 170 to maintain the pressure balance of the oxygen production system. And the nitrogen-rich gas with the oxygen content of 10-15% can be directly discharged into the air or enter the gas mixing valve through the two-position three-way electromagnetic valve. In the treatment process, when high-oxygen-content gas is required to be provided, for example, when gas with the oxygen content of 30-40% is required to be provided, the system controls to discharge nitrogen-rich gas with the oxygen content of 10-15% into the air, and the oxygen-rich gas and the air with the required proportion are mixed to obtain the gas with the set oxygen content by controlling the opening of the corresponding valve of the oxygen inlet 212 and the second air inlet 211; while maintaining the pressure balance inside the system by adjusting the air pressure regulating valve 170. When a low oxygen content gas is required, for example, a gas with an oxygen content of 10% -15% is required to be provided, the valve corresponding to 213 of the nitrogen-rich gas inlet is controlled to be opened, the valve corresponding to 212 of the oxygen inlet and 211 of the second air inlet is controlled to be closed, and meanwhile, the pressure balance in the system is maintained by adjusting the air pressure adjusting valve 170.
Further, referring to fig. 3, fig. 3 is a schematic structural diagram of an intermittent high-low oxygen training system according to another embodiment of the present invention. When the PSA oxygenerator 110 adsorbs, separates and prepares oxygen to air, zeolite molecular sieve is arranged in the PSA oxygenerator 110, the zeolite molecular sieve has high adsorption to nitrogen, carbon dioxide and the like are absorbed under the pressurizing condition to produce oxygen, and the nitrogen and the carbon dioxide adsorbed after depressurization are released from the zeolite molecular sieve to obtain nitrogen-rich gas. Therefore, in this embodiment, in order to pressurize air, the first air inlet 111 is further connected to an air compressor 120, so as to compress air and increase air pressure, so that the zeolite molecular sieve in the PSA oxygen generator 110 adsorbs nitrogen to prepare oxygen. After air pressurization, the temperature of the air can be increased after air compression, and the adsorption quantity of the zeolite molecular sieve can be reduced due to the fact that the air temperature is too high, so that the oxygen production effect is affected. Thus, optionally, with continued reference to fig. 3, an air cooling device 150 is further connected between the air compressor 120 and the first air inlet 111, and the air cooling device 150 is configured to reduce the temperature of the compressed air. Because harmful substances such as dust may exist in the air, the dust not only causes the finally prepared mixed gas to contain dust, affects the quality of the mixed gas, but also contaminates the molecular sieve in the oxygen generating device 110, so that the capability of the molecular sieve for adsorbing the gas is reduced. Thus, optionally, a first air purification device 130 may also be connected to the first air inlet 111 for purifying air. In addition, since air contains a certain amount of moisture, the presence of moisture affects the adsorption of zeolite molecular sieves. Thus, optionally, an air drying device 140 is further connected to the first air inlet 111, for removing water from the air and reducing the moisture content in the air. It should be understood that the first air cleaning device 130, the air drying device 140 and the air cooling device 150 may be all arranged at the same time, or only one or more of them may be arranged, and the first air cleaning device 130, the air drying device 140 and the air cooling device 150 may be collectively referred to as an air treatment device, and the air drying device 140 and the air cooling device 150 may be selected from air driers having both cooling and drying functions. Wherein, when the air treatment device comprises a plurality of devices, the air compressor 120 and the air treatment device are connected in series to the first air inlet.
Further, in order to make the mixed gas mixing more uniform, please continue to refer to fig. 3, the gas mixing device further includes a gas mixing chamber in communication with the gas mixing valve and the breathing mask, and the gas mixing chamber includes a mixed gas inlet in communication with the mixed gas outlet and a second mixed gas outlet in communication with the breathing mask. The mixed gas in the gas mixing valve enters the gas mixing cavity and is further mixed in the gas mixing cavity, so that more uniform mixed gas is obtained, the quality of the mixed gas is improved, and the oxygen concentration of the mixed gas is controlled more accurately.
Further, in the case of preparing a mixed gas of a desired oxygen concentration by mixing air and two of the oxygen and nitrogen-rich gases produced by the oxygen production apparatus 110, the higher the purity of the oxygen, the easier the concentration control of the respective gases, and if the purity of the produced oxygen is low, the oxygen concentration of the mixed gas may not reach the desired oxygen concentration (high oxygen concentration). Accordingly, with continued reference to fig. 3, optionally, in this embodiment, the oxygen-containing gas generating apparatus 100 further includes an oxygen purifying device 180, and the oxygen purifying device 180 is connected between the oxygen outlet 112 of the oxygen generating device 110 and the oxygen inlet 212 of the gas mixing valve 210. The oxygen produced by the oxygen production device 110 enters the oxygen purification device 180 through the oxygen outlet 112, and is further purified in the oxygen purification device 180, so that the purity of the oxygen is improved. Purified oxygen enters the gas mixing valve 210 through the oxygen inlet 212 to participate in the generation of mixed gas. The oxygen purification device 180 may be any one of the existing oxygen purification devices 180, and is not particularly limited herein, and alternatively, the oxygen purification device 180 may be an SM air membrane oxygen separation device. The oxygen purification device 180 can improve the purity of oxygen, so that the regulation and control of the mixed gas are simpler and more convenient, and the mixed gas with higher oxygen concentration can be prepared.
Further, in order to improve the comfort of the user during the intermittent high-low oxygen training, referring to fig. 3, the respiratory training system is further provided with a gas quality adjusting member (not shown) connected in series between the first mixed gas outlet 214 and the respiratory mask 220, wherein the gas quality adjusting member includes at least one of a gas humidifier 240, a gas flavoring device 250 and a negative ion generator 260. The gas humidifier 240 is configured to humidify the mixed gas, and improve the humidity of the mixed gas; the gas perfuming device 250 comprises a perfuming agent for perfuming the mixed gas so that the mixed gas has fragrance, and the type of the perfuming agent can be selected according to actual needs; the negative ion generator 260 is used to generate negative ions from the mixed gas. After the mixed gas is processed by the gas quality adjusting piece, the quality of the mixed gas is improved, so that a user is more comfortable when performing high-low oxygen intermittent training, and the diversified requirements of the user can be met.
When the intermittent high-low oxygen training system is used for intermittent high-low oxygen training, the face of the user is covered by the breathing mask, only the mixed gas provided by the breathing mask 220 can be inhaled, and when the user breathes, the amount of gas inhaled each time is not identical, so that the amount of gas inhaled by the user in certain breathing is larger than the amount of gas provided by the current mixed gas flow, and insufficient gas supply can be caused. Thus, with continued reference to fig. 3, in this embodiment, the respiratory training apparatus 200 further includes a gas storage chamber 270 in communication with the gas mixing chamber 230, wherein the gas storage chamber 270 is a collapsible chamber, such as an air bag. The gas storage chamber 270 is used for storing mixed gas and supplying gas when the mixed gas is not supplied sufficiently. Specifically, when the mixed gas is sufficient, part of the mixed gas is stored from the gas mixing chamber into the gas storage chamber 270; when the gas supply is insufficient, the mixed gas stored in the gas storage chamber 270 enters the mixed gas chamber, and the mixed gas is replenished to the gas mixing chamber. It will be appreciated that the size of the air storage chamber 270 may be set according to the actual situation, and is not particularly limited herein, for example, the size of the air storage chamber 270 may be 5L.
Further, referring to fig. 3, in this embodiment, the intermittent high-low oxygen training system is further provided with a gas pump 280 (relay pump) connected between the gas mixing valve and the breathing mask. The gas pump 280 is connected to the controller 300, and when the gas pump 280 is started, the gas pressure of the mixed gas outputted from the first mixed gas outlet 214 can be increased. The controller 300 is further configured to control an operation parameter of the gas pump 280 to adjust the gas pressure of the mixed gas outputted from the first mixed gas outlet 214 of the gas mixing valve 210. Alternatively, when the gas mixing device includes a gas mixing chamber 230, the gas pump 280 is connected between the gas mixing valve 210 and the gas mixing chamber 230. Specifically, when the controller 300 detects that the pressure of the mixed gas exceeds the preset pressure threshold, the opening degree of the opening and closing member is adjusted so that the pressure of the mixed gas is reduced; when the pressure of the mixed gas is too low, the opening degree of the opening and closing member can be adjusted first, for example, the opening degree of each gas valve is increased, and when the pressure is still smaller than the preset pressure threshold value after the opening degree of the opening and closing member is increased, the gas pump 280 can be controlled to operate, so that the pressure of the mixed gas is increased. That is, in the scheme provided in the present embodiment, the pressure of the mixed gas is adjusted together by the gas mixing valve 230 and the gas pump 280, and the accuracy of the mixed gas pressure control is improved.
In the intermittent high and low oxygen training using the intermittent high and low oxygen training system, since the face of the user is covered by the breathing mask, only the mixed gas supplied from the breathing mask 220 can be inhaled, and thus, when the pressure of the mixed gas is too high or too low, the mixed gas is light, causing discomfort to the user, and may be dangerous when serious. Therefore, with continued reference to fig. 3, the gas mixing chamber 230 further includes a pressure balancing opening 233, and the pressure balancing opening 233 is connected to a pressure balancing valve 290, and when the pressure balancing valve 290 is opened, the gas mixing chamber 230 is connected to the outside air. The air pressure balance valve 290 is connected with the controller 300 to receive a control command sent by the controller 300 and is opened or closed according to the control command. Specifically, when the intermittent high-low oxygen training system is operated, the air pressure of the mixed gas is detected in real time or at a fixed time, and when the air pressure of the mixed gas exceeds the preset air pressure range, the controller 300 sends an opening instruction to the air pressure balance valve 290 to control the air pressure balance valve 290 to open so as to balance the pressure of the mixed gas and prevent the threat of the excessive high or low pressure of the mixed gas to the user. Further, when the mixed gas pressure is lower than the external atmospheric pressure, the external air enters the mixed gas cavity after the air pressure balance valve 290 is opened, and then enters the breathing mask 220 to be inhaled by the user, so an air filter may be optionally disposed on the air pressure balance valve 290 for filtering the air. Further, when the intermittent high-low oxygen training system provided in this embodiment includes the gas pump 280 and the gas storage chamber 270, the air pressure of the mixed gas is not too low in general, so alternatively, the air pressure balance valve 290 may be a one-way valve, that is, when the air pressure balance valve 290 is opened, only the mixed gas is allowed to flow out through the air pressure balance valve 290, but external air cannot enter the gas mixing chamber 230, and when the air pressure balance valve 290 is a one-way valve, an air filter is not required to be provided. When the intermittent high-low oxygen training system provided by the embodiment is used for intermittent high-low oxygen training, the system is stopped immediately after the air pressure balance valve is opened and is still abnormal, and error reporting information is output. Further, in the abnormal power-down mode, the system can normally release pressure, and no residual pressure in the system in the power-down mode is ensured. Further, the intermittent high-low oxygen training device can be further provided with an emergency braking button, and when the controller receives an emergency instruction triggered by the emergency braking button, the controller controls the intermittent high-low oxygen training system to stop providing the current oxygen concentration gas and controls the intermittent high-low oxygen training system to output the gas with the oxygen content of 30%. In the examination and treatment mode, when the oxygen concentration of the user is detected to be lower than a preset level, the intermittent high-low oxygen training system is controlled to immediately stop treatment, and the gas with the oxygen content of 30% is controlled to be output.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (4)
1. An intermittent high-low oxygen training system is characterized by comprising an oxygen-containing gas generating device and a breathing training device, wherein,
The oxygen-containing gas generating device comprises an oxygen generating device, wherein the oxygen generating device comprises a first air inlet, an oxygen outlet and a nitrogen-rich gas outlet;
the breathing training device comprises a gas mixing device and a breathing mask, wherein the gas mixing device is provided with a gas mixing valve communicated with the breathing mask and the oxygen generating device, the gas mixing valve comprises a first mixed gas outlet, a second air inlet, an oxygen inlet communicated with the oxygen outlet and a nitrogen-rich gas inlet communicated with the nitrogen-rich gas outlet, the second air inlet, the oxygen inlet and the nitrogen-rich gas inlet are all provided with opening and closing pieces, and the breathing mask is communicated with the first mixed gas outlet of the gas mixing valve;
The gas mixing device further comprises a gas mixing cavity communicated with the gas mixing valve and the breathing mask, the gas mixing cavity comprises a mixed gas inlet communicated with the first mixed gas outlet and a second mixed gas outlet communicated with the breathing mask, and the breathing training equipment further comprises a gas storage cavity communicated with the gas mixing cavity, wherein the gas storage cavity is used for storing mixed gas and is used for supplying gas when the mixed gas is insufficient in supply;
The intermittent high-low oxygen training system further comprises a controller, wherein the controller is connected with the gas mixing valve and used for controlling the opening degree of the opening and closing piece of the gas mixing valve;
The intermittent high-low oxygen training system is also provided with a gas pump connected between the gas mixing valve and the gas mixing cavity, the gas pump is connected with the controller, the controller is also used for controlling the operation parameters of the gas pump so as to adjust the air pressure of the mixed gas output by the first mixed gas outlet of the gas mixing valve, when the air pressure of the mixed gas is smaller than a preset pressure threshold value, the opening of the opening and closing part is controlled and adjusted firstly, and when the air pressure of the mixed gas is still smaller than the preset pressure threshold value after the opening of the opening and closing part is increased, the gas pump is controlled to operate so as to improve the pressure of the mixed gas;
the gas mixing cavity further comprises a gas pressure balance opening, the gas pressure balance opening is communicated with a gas pressure balance valve, when the gas pressure balance valve is opened, the gas mixing cavity is communicated with the outside air, the gas pressure balance valve is connected with the controller, and the gas pressure balance valve is a one-way valve and only allows the mixed gas to flow out to the outside;
An oxygen concentration sensor, a gas flow sensor and a pressure sensor are arranged between the oxygen outlet and the oxygen inlet, between the nitrogen-rich gas outlet and the nitrogen-rich gas inlet and between the second air inlet, and between the gas mixing device and the breathing mask, the oxygen concentration sensor, the gas flow sensor and the pressure sensor are connected with the controller, and the controller is also used for controlling the opening degree of the opening and closing piece of the gas mixing valve according to the oxygen concentration, the gas flow and the air pressure;
The intermittent high-low oxygen training system further comprises a wearable device, the wearable device is connected with the controller, the wearable device comprises a physiological parameter detection unit, the physiological parameter detection unit comprises at least one of a heart rate detection unit, a blood pressure detection unit, a blood oxygen detection unit, a brain oxygen detection unit and an electrocardio detection unit, and the controller is further used for adjusting the opening degree of the opening and closing piece of the gas mixing valve according to the physiological parameter detected by the wearable device;
The controller acquires training parameters, wherein the training parameters comprise target oxygen concentration, target duration and target air pressure of mixed gas required by training, the training parameters for intermittent high-low oxygen training can be that the first preset oxygen concentration is used for a first preset duration, the second preset oxygen concentration is used for a second preset duration, the first preset oxygen concentration is used for a first preset duration again, and the training parameters are circulated according to the mode until the training duration reaches the preset training duration; determining target oxygen concentration of mixed gas at each training time point according to the training parameters, acquiring oxygen concentration of oxygen, nitrogen-rich gas and air in real time, calculating to obtain flow ratio of the oxygen, the nitrogen-rich gas and the air according to the target oxygen concentration, the oxygen concentration of the oxygen, the nitrogen-rich gas and the oxygen concentration of the air, further, obtaining total flow of the gas according to the air pressure of the mixed gas, calculating to obtain target flow of the oxygen, the nitrogen-rich gas and the air according to the total flow of the gas and the flow ratio of the oxygen, the nitrogen-rich gas and the air, controlling opening degrees of opening and closing parts corresponding to the oxygen, the nitrogen-rich gas and the air, and adjusting the flow of the oxygen, the nitrogen-rich gas and the air to the target flow;
The controller acquires the oxygen concentration and the air pressure of the mixed gas in real time, and adjusts the oxygen, the nitrogen-rich gas and the air according to the detected oxygen concentration and air pressure of the mixed gas;
When the target oxygen concentration of the current mixed gas is high oxygen concentration, the mixed gas can be prepared by mixing oxygen and air, at the moment, the opening and closing piece corresponding to the nitrogen-rich gas inlet is adjusted to be communicated with the outside air, the nitrogen-rich gas is directly discharged into the outside air, and the flow ratio of the oxygen to the air can be calculated through the target oxygen concentration, the oxygen concentration of the oxygen and the oxygen concentration of the air; the total flow of the gas is calculated according to the gas pressure of the mixed gas, the target flow of the oxygen and the air can be obtained according to the flow ratio of the oxygen and the air and the total flow of the gas, the flow of the oxygen and the air is regulated to the corresponding target flow by controlling the opening of the opening and closing piece corresponding to the oxygen inlet and the second air, and meanwhile, the pressure of the system is regulated by regulating the opening of the gas pressure regulating valve;
When the current target oxygen concentration is low oxygen concentration, the mixed gas can be obtained by mixing nitrogen-rich gas and air, at the moment, the opening and closing piece corresponding to the oxygen inlet is closed, and the flow ratio of the nitrogen-rich gas to the air can be calculated through the target oxygen concentration, the oxygen concentration of the nitrogen-rich gas and the oxygen concentration of the air; and calculating the total gas flow according to the gas pressure of the mixed gas, obtaining the target flow of the nitrogen-rich gas and the air according to the flow ratio of the nitrogen-rich gas and the air and the total gas flow, and adjusting the flow of the nitrogen-rich gas and the air to the corresponding target flow by controlling the opening of the opening and closing piece corresponding to the nitrogen-rich gas inlet and the second air inlet.
2. The intermittent high and low oxygen training system of claim 1, wherein the respiratory training device is further provided with a gas quality regulator in series between the mixed gas outlet and the respiratory mask, the gas quality regulator comprising at least one of a gas humidifier, a gas fragrancer, and a negative ion generator.
3. The intermittent high and low oxygen training system of claim 1, wherein the oxygen-containing gas generating apparatus further comprises an oxygen purification device connected between an oxygen outlet of the oxygen generating device and an oxygen inlet of the gas mixing valve.
4. The intermittent high-low oxygen training system according to claim 1, wherein the oxygen-containing gas generating device further comprises an air compressor and an air processing piece connected in series with the first air inlet, the air processing piece comprises at least one of a first air purifying device, an air drying device and an air cooling device, the second air inlet is further provided with a second air purifying device, an oxygen storage device is further arranged between the oxygen outlet and the oxygen inlet, and the oxygen storage device is communicated with the outside air through an air pressure regulating valve.
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| CN111009302A (en) * | 2019-11-29 | 2020-04-14 | 深圳市俄中博医医疗科技有限公司 | Intermittent high and low oxygen training system and method based on intelligent algorithm |
| CN111558206A (en) * | 2020-05-26 | 2020-08-21 | 中国人民解放军空军特色医学中心 | Equipment for pilot low-oxygen training |
| CN113101616B (en) * | 2021-05-08 | 2022-04-01 | 杭州格森赫特科技有限公司 | Intelligent breathing training system, control system and control method |
| CN113230979A (en) * | 2021-05-08 | 2021-08-10 | 杭州格森赫特科技有限公司 | Gas generating device |
| CN113101821A (en) * | 2021-05-18 | 2021-07-13 | 合肥恒诚智能技术有限公司 | Intelligent low-oxygen generating device for training |
| CN114432550A (en) * | 2021-11-24 | 2022-05-06 | 宁波莱弗特医疗器械有限公司 | Self-oxygen supply device and self-oxygen supply method |
| CN117357759B (en) * | 2022-06-30 | 2025-11-07 | 深圳市慈联康护科技有限责任公司 | Method and system for preparing gas with variable oxygen concentration |
| CN117138671A (en) * | 2022-10-10 | 2023-12-01 | 保定迈卓医疗器械有限公司 | Low-oxygen air preparation equipment and preparation method thereof |
| CN117122787A (en) * | 2023-08-31 | 2023-11-28 | 广州蓝仕威克医疗科技有限公司 | Stable and accurate mixed gas tidal volume generation control device and breathing machine |
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