WO2023116265A1 - Dual-mode oxygen generator and oxygen supply method thereof - Google Patents

Dual-mode oxygen generator and oxygen supply method thereof Download PDF

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Publication number
WO2023116265A1
WO2023116265A1 PCT/CN2022/131998 CN2022131998W WO2023116265A1 WO 2023116265 A1 WO2023116265 A1 WO 2023116265A1 CN 2022131998 W CN2022131998 W CN 2022131998W WO 2023116265 A1 WO2023116265 A1 WO 2023116265A1
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WIPO (PCT)
Prior art keywords
oxygen
monitoring unit
flow
gas
valve
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PCT/CN2022/131998
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French (fr)
Chinese (zh)
Inventor
李恒
侯丙营
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北京谊安健康科技有限公司
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Publication of WO2023116265A1 publication Critical patent/WO2023116265A1/en

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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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/20—Blood composition characteristics
    • A61M2230/205—Blood composition characteristics partial oxygen pressure (P-O2)
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/42—Rate

Definitions

  • the invention belongs to the technical field of medical equipment, in particular to a double-mode oxygen generator and an oxygen supply method thereof.
  • the oxygen generator is divided into two oxygen supply modes: continuous oxygen supply and pulse oxygen supply.
  • Continuous oxygen supply requires relatively low pressure and pressure fluctuations are relatively small to achieve continuous and constant flow of oxygen supply;
  • pulse oxygen supply requires relatively high pressure and the pressure fluctuates from high to low. A certain amount of oxygen is supplied to the user at a time.
  • Chinese utility model patent CN206566327U discloses an oxygen concentrator with inhalation oxygen supply.
  • an ultrasonic gas sensor is used as a detection element for detecting human inhalation or respiration.
  • the corresponding data enables the oxygen generating unit to provide oxygen to the human body through the oxygen delivery pipeline only when the human body inhales, and not to provide oxygen to the human body at other times, thereby realizing oxygen supply with inhalation.
  • the inhalational oxygen supply oxygen generator of this patent still has only one pulse oxygen supply mode, and this single mode cannot cope with multiple usage scenarios; the pulse frequency cannot be adjusted, and the therapeutic effect is single; the oxygen production efficiency is low, and the oxygen production concentration is low .
  • the purpose of the present invention is to provide a dual-mode oxygen generator, which can be applied to a wider range of scenarios. Since the continuous oxygen supply mode has the advantages of large flow rate, long battery life, and strong oxygen supply capacity, adapting the pulse oxygen supply mode to this system can greatly improve the equivalent therapeutic effect of pulse oxygen supply far beyond ordinary The level of the pulse oxygen generator.
  • a dual-mode oxygen generator which includes an oxygen generator unit, an air storage tank, a pressure regulating valve, a flow meter, an oxygen concentration and pressure monitoring unit, an oxygen outlet nozzle, and a breathing monitoring unit;
  • the oxygen generating unit is connected to the gas storage tank through a pipeline provided with a one-way valve;
  • the gas storage tank, pressure regulating valve, flow meter, oxygen concentration and pressure monitoring unit and oxygen outlet nozzle are sequentially connected through pipelines to form a main gas circuit, and a first A gas path branch point, the first gas path branch point is connected to a detection gas path, and a respiratory monitoring unit is arranged on the detection gas path.
  • the breath detection unit has the function of on-off and detection of micro flow, and the breath detection unit has the function of detecting whether the human body inhales.
  • the oxygen generator also includes a gas block, a first on-off valve and a bypass gas path, and the gas storage tank, the gas block, the first on-off valve and the first gas path branch point are sequentially connected by pipelines to form Bypass airway.
  • a second gas path branch point is set on the pipeline between the oxygen concentration pressure monitoring unit and the flow meter, and the second gas path branch point is connected to the third on-off valve;
  • the first gas path branch point is not connected to the detection gas path.
  • both the first gas path branch point and the second gas path branch point can be connected by a tee.
  • the respiratory monitoring unit is a second on-off valve and a micro flow sensor, or a differential pressure sensor.
  • the oxygen concentration and pressure monitoring unit is an oxygen concentration sensor or an oxygen pressure sensor or an integrated sensor capable of detecting oxygen concentration, oxygen flow and respiratory microflow.
  • an internal pressure sensor is provided on the gas storage tank.
  • the flowmeter has the function of adjusting the output flow, and also has the function of on-off when the adjusted flow is 0.
  • the air resistance is the concentrated expression of the sum of the air resistance of the entire bypass air path.
  • a fixed volume of air can be obtained by adding additional air resistance or no additional air resistance in the air path, which will be regarded as the equivalent air resistance of the air resistance .
  • the present invention also provides an oxygen supply system.
  • the oxygen supply system includes an oximeter and the above-mentioned dual-mode oxygen concentrator, and the dual-mode oxygen concentrator and the oximeter are connected in parallel to the control unit.
  • the control unit used in the present invention can be a conventional control unit in the field, which can be purchased commercially.
  • the present invention also provides an oxygen supply method for a dual-mode oxygen generator, the oxygen supply method comprising the following steps:
  • the oxygen production unit continuously produces oxygen and transports the produced oxygen to the gas storage tank for storage; it provides continuous oxygen supply mode or pulse oxygen supply mode according to user needs;
  • the air storage tank outputs a constant-pressure and constant-flow gas flow through a pressure regulating valve and a flow meter, and the constant-pressure and constant-flow gas flow is output to the oxygen concentration and pressure monitoring unit.
  • the oxygen concentration and pressure monitoring unit detects the oxygen concentration and flow value of the constant flow gas flow. The oxygen flow is continuously supplied to the user through the oxygen outlet;
  • the detection gas path and the respiratory monitoring unit are normally open, and the flow meter is first closed;
  • the respiratory monitoring unit detects the flow of tiny airflow
  • the flow meter opens, and the respiratory monitoring unit delays for a certain period of time.
  • most of the gas with a fixed volume at the back end of the flowmeter is sent to the oxygen nozzle through the oxygen concentration and pressure monitoring unit, and a small part is discharged into the air after passing through the breathing monitoring unit, and the breathing monitoring unit detects and outputs oxygen through a small part of the oxygen flow flowing through.
  • the flow meter is turned off, the respiratory monitoring unit is turned on, and the next respiratory cycle is entered.
  • the present invention also provides another oxygen supply method for a dual-mode oxygen generator, the oxygen supply method comprising the following steps:
  • the oxygen production unit continuously produces oxygen and transports the produced oxygen to the gas storage tank for storage; it provides continuous oxygen supply mode or pulse oxygen supply mode according to user needs;
  • the air storage tank outputs a constant-pressure and constant-flow airflow through a pressure regulating valve and a flow meter.
  • the constant-pressure and constant-flow airflow passes through the first on-off valve and then is output to the oxygen concentration and pressure monitoring unit.
  • the oxygen concentration and pressure monitoring unit detects the oxygen concentration and The flow value, and finally the detected oxygen flow is continuously supplied to the user through the oxygen outlet;
  • the air enters from the air outlet of the respiratory monitoring unit, passes through the respiratory monitoring unit, and then flows to the oxygen outlet mouth.
  • the respiratory monitoring unit detects the flow of the tiny airflow
  • the first on-off valve opens, and the respiratory monitoring unit After a certain time delay, it will be closed.
  • the respiratory monitoring unit After passing through the first on-off valve, most of the fixed volume of gas will be transported to the oxygen outlet nozzle through the air resistance, and a small part will be discharged into the air after passing through the respiratory monitoring unit.
  • the respiratory monitoring unit will pass through a small part of the oxygen flowing through. Flow detection outputs the concentration of oxygen.
  • the first on-off valve is closed, and the respiratory monitoring unit is opened to enter the next breathing cycle.
  • the flowmeter adopted in the present invention has the functions of flow rate detection and gas path on-off. It can also be replaced by a combination of a flow meter with a single flow detection function and an on-off valve.
  • the present invention uses an oxygen concentration sensor to detect the oxygen concentration and oxygen flow rate during continuous ventilation, and can determine whether the oxygen nozzle is blocked by detecting the flow rate.
  • the oxygen concentration and pressure monitoring unit in the present invention has the function of monitoring oxygen concentration, oxygen flow and oxygen flow pressure.
  • the equivalent unit of the flowmeter part of the main gas path refers to: assuming that there are multiple devices that can adjust the stabilized airflow output by the pressure regulating valve to the required constant flow airflow, the structures, shapes, and adjustment methods of these devices Different, but after passing through the device, the required constant flow airflow can be obtained.
  • one device controls the size of the output flow by a stepping motor, and the other device controls the size of the output flow by a mechanical switch. This device is called It is the equivalent unit of the above flowmeter.
  • the equivalent method of outputting a fixed volume of gas by the side air circuit refers to: assuming that there are multiple side air circuits that can provide a fixed volume of gas with the breathing frequency, their air resistance aperture, on-off valve switching time and air storage tank The internal pressure is different, but the relationship between the three still satisfies the small hole jet equation. The result obtained is still a fixed volume of gas that meets the current breathing frequency.
  • the size of the aperture is to obtain a fixed volume of gas that meets the current respiratory rate; or the aperture of the air resistance is constant and the switching time of the on-off valve is constant, and the pressure in the air storage tank is adjusted to obtain a fixed volume of gas that meets the current respiratory rate.
  • the methods of outputting a fixed volume of gas are called the equivalent methods of the first method of outputting a fixed volume of gas.
  • the fixed-volume gas volume output by the present invention is equivalent to the realization method of the oxygen volume inhaled by the user during the inhalation phase in the continuous oxygen supply mode.
  • the beneficial effect of the present invention is:
  • the present invention can integrate the ordinary oxygen concentrator with continuous oxygen supply and the pulse oxygen concentrator with pulse oxygen supply into one machine, which doubles the applicable crowd of the machine.
  • different oxygen supply modes are suitable for different crowds, but
  • the user's mode of application may change as the disease progresses, the environment changes, or the user changes.
  • Fig. 1 is the structural representation of the dual-mode oxygen generator of embodiment 1 of the present invention
  • Fig. 2 is the structural representation of the dual-mode oxygen generator of embodiment 2 of the present invention.
  • Fig. 3 is the structural representation of the dual-mode oxygen generator of embodiment 3 of the present invention.
  • Fig. 4 is the structural representation of the dual-mode oxygen generator of embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural view of a dual-mode oxygen generator according to Embodiment 5 of the present invention.
  • Fig. 6 is a schematic structural diagram of a dual-mode oxygen concentrator coupled with an oximeter according to Embodiment 6 of the present invention
  • Oxygen unit 2. One-way valve; 3. Gas storage tank; 4. Pressure sensor in the tank; 5. Connecting pipeline; 6. Pressure regulating valve; 7. Flow meter; 8. User; 9. First 10. Second on-off valve; 11. Micro-flow detection sensor; 12. Oxygen concentration and pressure monitoring unit; 13. Oxygen outlet; 14. Air resistance; 15. First on-off valve; 16. Pressure Differential sensor; 17, pressure sensor; 18, third on-off valve; 19, oximeter.
  • a dual-mode oxygen generator said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
  • the oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
  • the gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle
  • the pipeline between 13 is provided with a first gas path branch point 9, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is set on the detection gas path.
  • the respiratory monitoring unit includes a second on-off valve 10 and a micro-flow detection sensor 11 connected by pipelines.
  • the gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
  • the oxygen concentration pressure monitoring unit adopts an oxygen concentration sensor.
  • the first gas path branch point 9 adopts a three-way connection.
  • the first gas path branch point 9 in this embodiment can also be set on the pipeline between the flow meter 7 and the pressure regulating valve 6 , and can also be set on the pipeline between the flow meter 7 and the oxygen concentration pressure monitoring unit 12 .
  • an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
  • the present invention integrates two contradictory oxygen supply modes into a set of oxygen production system
  • the dual-mode oxygen concentrator in this embodiment includes: a set of oxygen production unit, a gas storage tank and a gas passage, the oxygen production unit can continuously produce oxygen and deliver the produced oxygen to the gas storage tank for storage.
  • the gas pathway includes: gas storage tank, pressure sensor in the tank (to detect the gas pressure value), connecting pipeline, pressure regulating valve, flow meter, on-off valve (controlling the on-off of the connecting pipeline), tee, micro-flow detection sensor , oxygen concentration sensor, oxygen outlet nozzle, and the pressure sensor in the tank detect the pressure in the gas storage tank.
  • the gas outlet of the gas storage tank is connected to the pressure regulating valve through the connecting pipeline, and the pressure regulating valve outputs the fluctuating pressure value in the gas storage tank as
  • the air flow with stable pressure value is output to the flowmeter
  • the flowmeter is connected to the oxygen concentration sensor
  • the oxygen concentration sensor is connected to the inlet end of the three-way
  • one end of the three-way is connected to the second on-off valve and the detection gas connected to the micro-flow detection sensor.
  • the other end is connected to the oxygen outlet, and the oxygen concentration sensor detects the oxygen concentration and flow value of the constant flow airflow, and finally the oxygen with the concentration up to the standard and the constant flow is delivered to the user from the oxygen outlet.
  • the breathing detection circuit composed of the second on-off valve and the micro-flow detection sensor is closed and does not work, and the flow meter is normally open.
  • the pressure regulating valve is set to a lower pressure value and the air storage tank
  • the fluctuating pressure value in the output is the airflow with a stable pressure value, and the flowmeter stabilized airflow is adjusted to the required constant flow airflow, which is output to the oxygen concentration sensor, and the oxygen concentration sensor detects the oxygen concentration and flow value of the constant flow airflow, and is finally detected
  • the oxygen flow is continuously supplied to the user through the oxygen outlet;
  • the second on-off valve When the device switches to the pulse mode, the second on-off valve is normally open, the flowmeter is temporarily closed, and the pressure regulating valve is fully opened, which no longer plays the role of pressure regulation.
  • the smaller aperture acts as an air resistance with a fixed aperture.
  • the micro-flow detection sensor detects the oxygen concentration of the output oxygen through the small part of the oxygen flow that flows through. Closed, the second on-off valve is opened to enter the next breathing cycle. Its characteristics are: the two oxygen supply modes are concentrated on one set of gas system.
  • a dual-mode oxygen generator said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
  • the oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
  • the gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle
  • the pipeline between 13 is provided with a first gas path branch point 9, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is set on the detection gas path.
  • the oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path.
  • the respiratory monitoring unit includes a second on-off valve 10 and a micro-flow detection sensor 11 connected by pipelines.
  • the gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
  • the oxygen concentration pressure monitoring unit adopts an oxygen concentration sensor.
  • the first gas path branch point 9 adopts a three-way connection.
  • an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
  • the entire gas passage system can be split into two gas passages separated by high and low pressure, and the two gas passages are divided into main gas passage and bypass passage.
  • the air circuit, the two channels operate independently, the main air circuit can continuously deliver the oxygen stored in the air storage tank to the user; the air supply method of the side air circuit is to supply the oxygen stored in the air storage tank when the user inhales. The gas supply is stopped when the user exhales.
  • the main gas path includes a gas storage tank, a pressure sensor in the tank (to detect the gas pressure value), a pressure regulating valve, a connecting pipeline, an on-off valve (to control the on-off of the connecting pipeline), a flow meter, an oxygen concentration sensor, an outlet Oxygen nozzle, the pressure sensor in the tank detects the pressure in the gas storage tank, the inlet end of the pressure regulating valve is connected with the gas storage tank, and the fluctuating pressure value in the gas storage tank is output as an air flow with a stable pressure value, and the outlet end of the pressure regulating valve stabilizes the pressure
  • the airflow is sent to the inlet end of the flowmeter, and the outlet end of the flowmeter adjusts the regulated airflow to the required constant flow airflow to the inlet end of the oxygen concentration sensor, and the oxygen concentration sensor detects the oxygen concentration and flow value of the constant flow airflow, and finally Oxygen with a concentration up to standard and a constant flow rate is connected from the outlet end of the oxygen concentration sensor to the oxygen outlet nozzle and delivered to
  • the bypass gas path includes a gas storage tank, a pressure sensor in the tank (to detect the gas pressure value), a connecting pipeline, an air resistance, two on-off valves (to control the on-off of the connecting pipeline), a tee, and a micro-flow detection sensor , Oxygen outlet nozzle, the pressure sensor in the tank detects the pressure in the gas storage tank, the gas storage tank is connected to the gas resistance through the connecting pipeline, and a small hole with a constant area is used in the middle of the gas resistance to control the passage of high-pressure gas in the gas storage tank
  • the air resistance is connected to the first on-off valve through the connecting pipeline, and the opening and closing time of the first on-off valve can be controlled to output a fixed volume of gas that meets the current breathing frequency.
  • the rear end of the first on-off valve is connected to the tee On the air inlet, the first air outlet of the three-way is connected to the oxygen outlet, the second air outlet of the three-way is connected to the second on-off valve, and the rear end of the second on-off valve is connected to the air inlet of the micro-flow detection sensor.
  • the air outlet of the micro-flow detection sensor is connected to the air.
  • the air enters from the air outlet of the micro-flow detection sensor, passes through the air inlet of the micro-flow detection sensor, passes through the second on-off valve, and then flows to the oxygen outlet nozzle.
  • the on-off valve opens, and the second on-off valve closes after a certain time delay.
  • Most of the fixed-volume air volume at the back end of the first on-off valve is delivered to the oxygen nozzle through the first air outlet of the three-way, and a small part passes through the micro-flow detection.
  • the micro-flow detection sensor detects the oxygen concentration of the output oxygen through a small part of the oxygen flow that flows through.
  • the first on-off valve is closed, and the second on-off valve is opened to enter the next breathing cycle.
  • the two gas passages are connected in parallel through a tee at the front end of the oxygen outlet nozzle.
  • the characteristic is that when the continuous gas supply mode is required, the first on-off valve and the second on-off valve of the bypass air passage are closed.
  • the bypass air circuit is closed, and the main air circuit works normally; when pulse oxygen supply is required, the flowmeter of the main air circuit is closed, the main air circuit is closed, and the bypass air circuit works normally, and the output of a fixed volume of gas is equivalent to the continuous supply
  • the oxygen mode the amount of oxygen inhaled by the user during the inhalation phase increases the efficiency of oxygen use by 2-3 times; the two oxygen supply circuits can share a set of oxygen production units, as shown in Figure 2.
  • a dual-mode oxygen generator said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
  • the oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
  • the gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle
  • the pipeline between 13 is provided with a first gas path branch point 9, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is set on the detection gas path.
  • the oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path.
  • the breathing monitoring unit is a differential pressure sensor 16 .
  • the gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
  • the oxygen concentration pressure monitoring unit adopts an oxygen concentration sensor.
  • the first gas path branch point 9 adopts a three-way connection.
  • an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
  • this embodiment uses a differential pressure sensor to replace the breathing detection branch composed of a micro-flow detection sensor and a second on-off valve, and uses a differential pressure sensor to be connected in series on the bypass air path to realize respiratory monitoring. If the oxygen concentration value of the output gas cannot be detected in gas mode, the flow meter on the main gas circuit can be turned on intermittently for a short time, so that a small amount of oxygen can detect the oxygen concentration through the oxygen concentration sensor on the main gas circuit.
  • an oxygen concentration sensor is used to detect the oxygen concentration and oxygen flow rate during continuous ventilation, and it is possible to determine whether the oxygen nozzle is blocked by detecting the flow rate.
  • a dual-mode oxygen generator said oxygen generator comprises an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, a pressure sensor 17, an oxygen outlet nozzle 13 and a breathing monitor unit;
  • the oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
  • the gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the pressure sensor 17 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas circuit, and on the pipeline between the pressure sensor 17 and the oxygen outlet nozzle 13 A first gas path branch point 9 is set, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is arranged on the detection gas path.
  • the oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path.
  • the respiratory monitoring unit includes a second on-off valve 10 and a micro-flow detection sensor 11 connected by pipelines.
  • the gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
  • the pressure sensor 17 is used as the oxygen concentration and pressure monitoring unit.
  • the first gas path branch point 9 adopts a three-way connection.
  • an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
  • the pressure sensor is used instead of the oxygen concentration sensor as the oxygen concentration and pressure monitoring unit.
  • the second on-off valve on the bypass air circuit is intermittently opened, and then closed after a small amount of oxygen flows through.
  • the sensor detects the oxygen concentration, the flow rate is manually adjusted and fixed by using a mechanical flowmeter, and the pressure sensor is used to judge whether the oxygen nozzle is blocked.
  • a dual-mode oxygen generator said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
  • the oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
  • the gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle
  • the first gas path branch point 9 is set on the pipeline between 13.
  • the oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path.
  • the gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
  • the oxygen concentration and pressure monitoring unit adopts an integrated sensor capable of detecting oxygen concentration, oxygen flow and respiratory microflow.
  • the first gas path branch point 9 adopts a three-way connection.
  • a second gas path branch point is set, and the second gas path branch point is connected to the third on-off valve 18.
  • the oxygen concentration sensor on the main gas circuit and the micro-flow detection sensor on the branch circuit are replaced with integrated sensors that can detect oxygen concentration, flow rate and respiratory micro-flow rate, and the two gas circuits are more integrated.
  • the third on-off valve and the first on-off valve on the bypass air path are closed, and the integrated sensor acts as an oxygen concentration sensor; when in the pulse oxygen supply mode, the flow meter on the main air path is closed, The first on-off valve on the bypass air path is opened.
  • the integrated sensor acts as a micro-flow detection sensor and the third on-off valve forms a breathing detection branch, and the integrated sensor and the third on-off valve are used as a breathing monitoring unit.
  • the dual-mode oxygen generator and the oximeter 19 can be used in parallel to form an intelligent health control system, and the oximeter can be added to detect the blood oxygen saturation of the user.
  • the oxygen generator will automatically adjust the oxygen supply mode to pulse oxygen supply mode to improve the therapeutic effect.
  • the oxygen concentrator switches back to the continuous oxygen supply mode and voice prompts the user that the blood oxygen saturation has returned to normal, so as to avoid oxygen poisoning caused by long-term efficient oxygen production.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
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Abstract

A dual-mode oxygen generator and an oxygen supply method thereof. The oxygen generator comprises an oxygen generation unit (1), a gas storage tank (3), a pressure regulating valve (6), a flowmeter (7), an oxygen concentration and pressure monitoring unit (12), an oxygen outlet nozzle (13), and a respiration monitoring unit. The oxygen generation unit (1) is connected to the gas storage tank (3) by means of a pipeline provided with a one-way valve (2). The gas storage tank (3), the pressure regulating valve (6), the flowmeter (7), the oxygen concentration and pressure monitoring unit (12), and the oxygen outlet nozzle (13) are sequentially connected by means of pipelines to form a main gas path. A first gas path branch point (9) is provided on the pipeline between the oxygen concentration and pressure monitoring unit (12) and the oxygen outlet nozzle (13), the first gas path branch point (9) is connected to a detection gas path, and the respiration monitoring unit is disposed on the detection gas path. The oxygen generator can integrate a common oxygen generator for continuous oxygen supply and a pulse oxygen generator for pulse oxygen supply into one machine, and widens the application crowd of the machine by one time.

Description

一种双模制氧机及其供氧方法A dual-mode oxygen generator and its oxygen supply method
相关申请：Related applications:
本申请要求名称为“一种双模制氧机及其供氧方法”、于2021年12月20日提交的中国专利申请2021115624008的优先权，在此通过引用包括该件申请。This application claims the priority of the Chinese patent application 2021115624008 entitled “A Dual-mode Oxygen Concentrator and Its Oxygen Supply Method” filed on December 20, 2021, which is incorporated herein by reference.
技术领域technical field
本发明属于医疗设备技术领域，具体是一种双模制氧机及其供氧方法。The invention belongs to the technical field of medical equipment, in particular to a double-mode oxygen generator and an oxygen supply method thereof.
背景技术Background technique
制氧机分为持续供氧和脉冲供氧两种供氧模式。持续供氧需要相对较低压力且压力波动比较小的情况下，才能实现持续恒定流量的供氧；脉冲供氧需要相对压力较高且压力是由高到低波动的情况下，在较短的时间里单次供给一定量的氧气给使用者。The oxygen generator is divided into two oxygen supply modes: continuous oxygen supply and pulse oxygen supply. Continuous oxygen supply requires relatively low pressure and pressure fluctuations are relatively small to achieve continuous and constant flow of oxygen supply; pulse oxygen supply requires relatively high pressure and the pressure fluctuates from high to low. A certain amount of oxygen is supplied to the user at a time.
中国实用新型专利CN206566327U公开了一种随吸供氧制氧机，在制氧机中使用超声波气体传感器作为检测人体吸气或呼吸的检测元件，控制单元根据超声波气体传感器检测到的与人体吸气相对应的数据，使氧气产生单元只在人体吸气时才通过输氧管路给人体提供氧气、而在其它时间不给人体提供氧气，从而实现随吸供氧。但该专利的随吸供氧制氧机仍只有一种脉冲的供氧模式，这种单一模式无法应对多种使用情景；脉冲频率不可调，治疗效果单一；制氧效率低，制氧浓度低。Chinese utility model patent CN206566327U discloses an oxygen concentrator with inhalation oxygen supply. In the oxygen concentrator, an ultrasonic gas sensor is used as a detection element for detecting human inhalation or respiration. The corresponding data enables the oxygen generating unit to provide oxygen to the human body through the oxygen delivery pipeline only when the human body inhales, and not to provide oxygen to the human body at other times, thereby realizing oxygen supply with inhalation. However, the inhalational oxygen supply oxygen generator of this patent still has only one pulse oxygen supply mode, and this single mode cannot cope with multiple usage scenarios; the pulse frequency cannot be adjusted, and the therapeutic effect is single; the oxygen production efficiency is low, and the oxygen production concentration is low .
发明内容Contents of the invention
本发明的目的在于，提供一种双模制氧机，该制氧机可以适用的情景也更加宽泛。由于持续供氧模式本来就具有流量大、续航时间长、供氧能力强等优点，在这种系统上适配脉冲供氧模式，可以将脉冲供氧的等效治疗效果大大提高到远超普通脉冲制氧机的水平。The purpose of the present invention is to provide a dual-mode oxygen generator, which can be applied to a wider range of scenarios. Since the continuous oxygen supply mode has the advantages of large flow rate, long battery life, and strong oxygen supply capacity, adapting the pulse oxygen supply mode to this system can greatly improve the equivalent therapeutic effect of pulse oxygen supply far beyond ordinary The level of the pulse oxygen generator.
为达到上述目的，本发明采用了如下的技术方案：In order to achieve the above object, the present invention has adopted following technical scheme:
一种双模制氧机，所述制氧机包括制氧单元、储气罐、压力调节阀、流量计、氧浓度压力监测单元、出氧嘴和呼吸监测单元；A dual-mode oxygen generator, which includes an oxygen generator unit, an air storage tank, a pressure regulating valve, a flow meter, an oxygen concentration and pressure monitoring unit, an oxygen outlet nozzle, and a breathing monitoring unit;
所述制氧单元通过设置单向阀的管路连接储气罐；The oxygen generating unit is connected to the gas storage tank through a pipeline provided with a one-way valve;
所述储气罐、压力调节阀、流量计、氧浓度压力监测单元和出氧嘴依次通过管路连接形成主气路，在氧浓度压力监测单元和出氧嘴之间的管路上设置第一气路分支点，所述第一气路分支点连接检测气路，检测气路上设置呼吸监测单元。所述呼吸检测单元具有通断和检测微小流量的功能，所述呼吸检测单元具有检测人体是否吸气的功能。The gas storage tank, pressure regulating valve, flow meter, oxygen concentration and pressure monitoring unit and oxygen outlet nozzle are sequentially connected through pipelines to form a main gas circuit, and a first A gas path branch point, the first gas path branch point is connected to a detection gas path, and a respiratory monitoring unit is arranged on the detection gas path. The breath detection unit has the function of on-off and detection of micro flow, and the breath detection unit has the function of detecting whether the human body inhales.
进一步地，所述制氧机还包括气阻、第一通断阀以及旁气路，所述储气罐、气阻、第一通断阀和第一气路分支点依次通过管路连接形成旁气路。Further, the oxygen generator also includes a gas block, a first on-off valve and a bypass gas path, and the gas storage tank, the gas block, the first on-off valve and the first gas path branch point are sequentially connected by pipelines to form Bypass airway.
优选地，在氧浓度压力监测单元和流量计之间的管路上设置第二气路分支点，第二气路分支点连接第三通断阀；Preferably, a second gas path branch point is set on the pipeline between the oxygen concentration pressure monitoring unit and the flow meter, and the second gas path branch point is connected to the third on-off valve;
当第二气路分支点连接第三通断阀时，第一气路分支点不连接检测气路。When the second gas path branch point is connected to the third on-off valve, the first gas path branch point is not connected to the detection gas path.
本发明中，第一气路分支点和第二气路分支点处均可采用三通进行连接。In the present invention, both the first gas path branch point and the second gas path branch point can be connected by a tee.
优选地，所述呼吸监测单元为第二通断阀和微流量传感器，或压差传感器。Preferably, the respiratory monitoring unit is a second on-off valve and a micro flow sensor, or a differential pressure sensor.
优选地，所述氧浓度压力监测单元为氧浓度传感器或氧压力传感器或具备氧浓度、氧流量和呼吸微流量检测功能的集成化传感器。Preferably, the oxygen concentration and pressure monitoring unit is an oxygen concentration sensor or an oxygen pressure sensor or an integrated sensor capable of detecting oxygen concentration, oxygen flow and respiratory microflow.
优选地，所述储气罐上设置罐内压力传感器。Preferably, an internal pressure sensor is provided on the gas storage tank.
所述流量计具有调节输出流量大小的功能，当调节流量为0时，也兼有通断的功能。The flowmeter has the function of adjusting the output flow, and also has the function of on-off when the adjusted flow is 0.
所述气阻是整个旁气路气阻总和的集中表达，在气路增加额外的气阻或不加额外的气阻都可以得到固定体积的气量都将视作该气阻的等效气阻。The air resistance is the concentrated expression of the sum of the air resistance of the entire bypass air path. A fixed volume of air can be obtained by adding additional air resistance or no additional air resistance in the air path, which will be regarded as the equivalent air resistance of the air resistance .
本发明还提供了一种供氧系统，所述供氧系统包括血氧仪和上述的双模制氧机，所述双模制氧机和血氧仪并联于控制单元。The present invention also provides an oxygen supply system. The oxygen supply system includes an oximeter and the above-mentioned dual-mode oxygen concentrator, and the dual-mode oxygen concentrator and the oximeter are connected in parallel to the control unit.
本发明所使用的控制单元可以为领域内的常规控制单元，可商业购买获得。The control unit used in the present invention can be a conventional control unit in the field, which can be purchased commercially.
本发明还提供了一种双模制氧机的供氧方法，所述供氧方法包括以下步骤：The present invention also provides an oxygen supply method for a dual-mode oxygen generator, the oxygen supply method comprising the following steps:
1)所述制氧单元持续制氧并将制取氧气输送到储气罐储存；根据使用者需要提供持续供氧模式或脉冲供氧模式；1) The oxygen production unit continuously produces oxygen and transports the produced oxygen to the gas storage tank for storage; it provides continuous oxygen supply mode or pulse oxygen supply mode according to user needs;
2)持续供氧模式：2) Continuous oxygen supply mode:
关闭检测气路以及呼吸监测单元；Close the detection gas circuit and the respiratory monitoring unit;
储气罐通过压力调节阀和流量计输出稳压恒定流量气流，稳压恒定流量气流输出到氧浓度压力监测单元，氧浓度压力监测单元检测恒定流量气流的氧浓度和流量值，最后经检测的氧气流通过出氧嘴持续供给使用者；The air storage tank outputs a constant-pressure and constant-flow gas flow through a pressure regulating valve and a flow meter, and the constant-pressure and constant-flow gas flow is output to the oxygen concentration and pressure monitoring unit. The oxygen concentration and pressure monitoring unit detects the oxygen concentration and flow value of the constant flow gas flow. The oxygen flow is continuously supplied to the user through the oxygen outlet;
脉冲供氧模式：Pulse oxygen supply mode:
当切换到脉冲模式时，常开检测气路以及呼吸监测单元，流量计先关闭；When switching to the pulse mode, the detection gas path and the respiratory monitoring unit are normally open, and the flow meter is first closed;
当使用者吸气时，空气从呼吸监测单元的出气口进入，通过呼吸监测单元后流向出氧嘴，此时呼吸监测单元检测到微小气流的流动，流量计打开，呼吸监测单元在延迟一定时间后关闭，流量计后端固定体积的气量大部分通过氧浓度压力监测单元输送到出氧嘴，小部分通过呼吸监测单元后排入空气，呼吸监测单元通过流过的小部分氧气流检测输出氧气的浓度，输送完毕后流量计关闭，呼吸监测单元打开，进入下一呼吸周期。When the user inhales, the air enters from the air outlet of the respiratory monitoring unit, passes through the respiratory monitoring unit and then flows to the oxygen outlet mouth. At this time, the respiratory monitoring unit detects the flow of tiny airflow, the flow meter opens, and the respiratory monitoring unit delays for a certain period of time. After closing, most of the gas with a fixed volume at the back end of the flowmeter is sent to the oxygen nozzle through the oxygen concentration and pressure monitoring unit, and a small part is discharged into the air after passing through the breathing monitoring unit, and the breathing monitoring unit detects and outputs oxygen through a small part of the oxygen flow flowing through. After the delivery is completed, the flow meter is turned off, the respiratory monitoring unit is turned on, and the next respiratory cycle is entered.
本发明还提供另外一种双模制氧机的供氧方法，所述供氧方法包括以下步骤：The present invention also provides another oxygen supply method for a dual-mode oxygen generator, the oxygen supply method comprising the following steps:
1)所述制氧单元持续制氧并将制取氧气输送到储气罐储存；根据使用者需要提供持续供氧模式或脉冲供氧模式；1) The oxygen production unit continuously produces oxygen and transports the produced oxygen to the gas storage tank for storage; it provides continuous oxygen supply mode or pulse oxygen supply mode according to user needs;
2)持续供氧模式：2) Continuous oxygen supply mode:
关闭检测气路以及呼吸监测单元；关闭第一通断阀；Close the detection gas circuit and the respiratory monitoring unit; close the first on-off valve;
储气罐通过压力调节阀和流量计输出稳压恒定流量气流，稳压恒定流量气流通过第一通断阀后输出到氧浓度压力监测单元，氧浓度压力监测单元检测恒定流量气流的氧浓度和流量值，最后经检测的氧气流通过出氧嘴持续供给使用者；The air storage tank outputs a constant-pressure and constant-flow airflow through a pressure regulating valve and a flow meter. The constant-pressure and constant-flow airflow passes through the first on-off valve and then is output to the oxygen concentration and pressure monitoring unit. The oxygen concentration and pressure monitoring unit detects the oxygen concentration and The flow value, and finally the detected oxygen flow is continuously supplied to the user through the oxygen outlet;
脉冲供氧模式：Pulse oxygen supply mode:
当切换到脉冲模式时，常开检测气路以及呼吸监测单元，关闭流量计；When switching to pulse mode, normally open the detection gas circuit and the respiratory monitoring unit, and close the flow meter;
当使用者吸气时，空气从呼吸监测单元的出气口进入，通过呼吸监测单元后流向出氧嘴，此时呼吸监测单元检测到微小气流的流动，第一通断阀打开，呼吸监测单元在延迟一定时间后关闭，通过第一通断阀后固定体积的气量大部分再通过气阻输送到出氧嘴，小部分通过呼吸监测单元后排入空气，呼吸监测单元通过流过的小部分氧气流检测输出氧气的浓度，输送完毕后第一通断阀关闭，呼吸监测单元打开，进入下一呼吸周期。When the user inhales, the air enters from the air outlet of the respiratory monitoring unit, passes through the respiratory monitoring unit, and then flows to the oxygen outlet mouth. At this time, the respiratory monitoring unit detects the flow of the tiny airflow, the first on-off valve opens, and the respiratory monitoring unit After a certain time delay, it will be closed. After passing through the first on-off valve, most of the fixed volume of gas will be transported to the oxygen outlet nozzle through the air resistance, and a small part will be discharged into the air after passing through the respiratory monitoring unit. The respiratory monitoring unit will pass through a small part of the oxygen flowing through. Flow detection outputs the concentration of oxygen. After the delivery is completed, the first on-off valve is closed, and the respiratory monitoring unit is opened to enter the next breathing cycle.
本发明采用的流量计均流量检测以及气路通断功能。其还可以采用具备单一流量检测功能的流量计和通断阀组合代替。The flowmeter adopted in the present invention has the functions of flow rate detection and gas path on-off. It can also be replaced by a combination of a flow meter with a single flow detection function and an on-off valve.
本发明采用氧浓度传感器来检测持续通气时候的氧浓度和氧气流量，并且可以通过检测流量的大小判断出氧嘴是否堵管。The present invention uses an oxygen concentration sensor to detect the oxygen concentration and oxygen flow rate during continuous ventilation, and can determine whether the oxygen nozzle is blocked by detecting the flow rate.
本发明中的氧浓度压力监测单元具备监测氧浓度、氧气流量和氧流压力的作 用。The oxygen concentration and pressure monitoring unit in the present invention has the function of monitoring oxygen concentration, oxygen flow and oxygen flow pressure.
本发明中，主气路流量计部分的等效单元是指：假设有多个装置能将压力调节阀输出的稳压气流调节为所需的恒定流量气流，这些装置的结构、外形、调节方式不同，但经过该装置后都能得到所需的恒定流量气流，比如：一个装置是靠步进电机控制输出流量的大小，一个装置是靠机械开关控制输出流量的大小，则这种装置都称为上述流量计的等效单元。In the present invention, the equivalent unit of the flowmeter part of the main gas path refers to: assuming that there are multiple devices that can adjust the stabilized airflow output by the pressure regulating valve to the required constant flow airflow, the structures, shapes, and adjustment methods of these devices Different, but after passing through the device, the required constant flow airflow can be obtained. For example, one device controls the size of the output flow by a stepping motor, and the other device controls the size of the output flow by a mechanical switch. This device is called It is the equivalent unit of the above flowmeter.
本发明中，旁气路输出固定体积气量的等效方法是指：假设有多个旁气路能随呼吸频率提供固定体积的气量，它们的气阻孔径、通断阀开关时间和储气罐内压力不同，但三者关系仍满足小孔射流方程得到的结果仍是输出满足当前呼吸频率的固定体积的气量，比如：通断阀开关时间恒定、储气罐内压力恒定，通过调节气阻孔径的大小得到满足当前呼吸频率的固定体积的气量；或者气阻孔径恒定、通断阀开关时间恒定，通过调节储气罐内压力的大小得到满足当前呼吸频率的固定体积的气量则这两种输出固定体积气量的方法都称为第一种输出固定体积气量的方法的等效方法。In the present invention, the equivalent method of outputting a fixed volume of gas by the side air circuit refers to: assuming that there are multiple side air circuits that can provide a fixed volume of gas with the breathing frequency, their air resistance aperture, on-off valve switching time and air storage tank The internal pressure is different, but the relationship between the three still satisfies the small hole jet equation. The result obtained is still a fixed volume of gas that meets the current breathing frequency. The size of the aperture is to obtain a fixed volume of gas that meets the current respiratory rate; or the aperture of the air resistance is constant and the switching time of the on-off valve is constant, and the pressure in the air storage tank is adjusted to obtain a fixed volume of gas that meets the current respiratory rate. The methods of outputting a fixed volume of gas are called the equivalent methods of the first method of outputting a fixed volume of gas.
本发明输出的固定体积的气量等效于持续供氧模式下使用者在吸气阶段吸入的氧气量的实现方法。The fixed-volume gas volume output by the present invention is equivalent to the realization method of the oxygen volume inhaled by the user during the inhalation phase in the continuous oxygen supply mode.
与相应技术相比，本发明的有益效果是：Compared with corresponding technology, the beneficial effect of the present invention is:
本发明可以将持续供氧的普通制氧机和脉冲供氧的脉冲式制氧机集成为一个机器，将机器的适用人群拓宽了一倍，同时，不同的供氧模式适合不同的人群，但使用者的适用模式可能随着病情的发展、环境的变化或使用者的变化而发生变化。The present invention can integrate the ordinary oxygen concentrator with continuous oxygen supply and the pulse oxygen concentrator with pulse oxygen supply into one machine, which doubles the applicable crowd of the machine. At the same time, different oxygen supply modes are suitable for different crowds, but The user's mode of application may change as the disease progresses, the environment changes, or the user changes.
附图说明Description of drawings
图1为本发明实施例1双模制氧机的结构示意图；Fig. 1 is the structural representation of the dual-mode oxygen generator of embodiment 1 of the present invention;
图2为本发明实施例2双模制氧机的结构示意图；Fig. 2 is the structural representation of the dual-mode oxygen generator of embodiment 2 of the present invention;
图3为本发明实施例3双模制氧机的结构示意图；Fig. 3 is the structural representation of the dual-mode oxygen generator of embodiment 3 of the present invention;
图4为本发明实施例4双模制氧机的结构示意图；Fig. 4 is the structural representation of the dual-mode oxygen generator of embodiment 4 of the present invention;
图5为本发明实施例5双模制氧机的结构示意图；5 is a schematic structural view of a dual-mode oxygen generator according to Embodiment 5 of the present invention;
图6为本发明实施例6双模制氧机联用血氧仪的结构示意图；Fig. 6 is a schematic structural diagram of a dual-mode oxygen concentrator coupled with an oximeter according to Embodiment 6 of the present invention;
附图标记：Reference signs:
1、制氧单元；2、单向阀；3、储气罐；4、罐内压力传感器；5、连接管道；6、压力调节阀；7、流量计；8、使用者；9、第一气路分支点；10、第二通断阀；11、微流量检测传感器；12、氧浓度压力监测单元；13、出氧嘴；14、气阻；15、第一通断阀；16、压差传感器；17、压力传感器；18、第三通断阀；19、血氧仪。1. Oxygen unit; 2. One-way valve; 3. Gas storage tank; 4. Pressure sensor in the tank; 5. Connecting pipeline; 6. Pressure regulating valve; 7. Flow meter; 8. User; 9. First 10. Second on-off valve; 11. Micro-flow detection sensor; 12. Oxygen concentration and pressure monitoring unit; 13. Oxygen outlet; 14. Air resistance; 15. First on-off valve; 16. Pressure Differential sensor; 17, pressure sensor; 18, third on-off valve; 19, oximeter.
具体实施方式Detailed ways
下面以附图和具体实施方式对本发明作进一步详细的说明。The present invention will be further described in detail with the accompanying drawings and specific embodiments.
实施例1Example 1
如图1所示，一种双模制氧机，所述制氧机包括制氧单元1、储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12、出氧嘴13和呼吸监测单元；As shown in Figure 1, a dual-mode oxygen generator, said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
所述制氧单元1通过设置单向阀2的管路连接储气罐3；The oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
所述储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12和出氧嘴13依次通过连接管路5连接形成主气路，在氧浓度压力监测单元12和出氧嘴13之间的管路上设置第一气路分支点9，所述第一气路分支点9连接检测气路，检测气路上设置呼吸监测单元。The gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle The pipeline between 13 is provided with a first gas path branch point 9, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is set on the detection gas path.
所述呼吸监测单元包括用管路连接的第二通断阀10和微流量检测传感器11。The respiratory monitoring unit includes a second on-off valve 10 and a micro-flow detection sensor 11 connected by pipelines.
所述储气罐3上设置罐内压力传感器4。The gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
所述氧浓度压力监测单元采用氧浓度传感器。The oxygen concentration pressure monitoring unit adopts an oxygen concentration sensor.
所述第一气路分支点9采用三通连接。The first gas path branch point 9 adopts a three-way connection.
本实施例中的第一气路分支点9还可以设置于流量计7和压力调节阀6之间的管路，还可以设置于流量计7和氧浓度压力监测单元12之间的管路上。The first gas path branch point 9 in this embodiment can also be set on the pipeline between the flow meter 7 and the pressure regulating valve 6 , and can also be set on the pipeline between the flow meter 7 and the oxygen concentration pressure monitoring unit 12 .
本实施例中还可以在压力调节阀6和流量计7之间的管路上设置通断阀，以实现相应的气路通断功能。In this embodiment, an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
本发明将具有矛盾点的两种供氧模式集成到一套制氧系统中；The present invention integrates two contradictory oxygen supply modes into a set of oxygen production system;
本实施例的双模式制氧机，包括：一套制氧单元、一个储气罐和一条气体通路，所述制氧单元能持续制氧并将制取氧气输送到储气罐储存，所述气体通路包括：储气罐、罐内压力传感器(检测气体压力值)、连接管路、压力调节阀、流量计、通断阀(控制连接管路的通断)、三通、微流量检测传感器、氧浓度传感器、出氧嘴，罐内压力传感器检测储气罐内压力，储气罐的出气口通过连接管路与压力调节阀连接，压力调节阀将储气罐内波动的压力值输出为稳定压力值的气流，输出到流量计，流量计连接到氧浓度传感器，氧浓度传感器连接到三通的进 气端，三通一端连接到第二通断阀和微流量检测传感器连接的检测气路上，另一端连接到出氧嘴，氧浓度传感器检测恒定流量气流的氧浓度和流量值，最后浓度达标和流量恒定的氧气从出氧嘴输送给使用者。The dual-mode oxygen concentrator in this embodiment includes: a set of oxygen production unit, a gas storage tank and a gas passage, the oxygen production unit can continuously produce oxygen and deliver the produced oxygen to the gas storage tank for storage. The gas pathway includes: gas storage tank, pressure sensor in the tank (to detect the gas pressure value), connecting pipeline, pressure regulating valve, flow meter, on-off valve (controlling the on-off of the connecting pipeline), tee, micro-flow detection sensor , oxygen concentration sensor, oxygen outlet nozzle, and the pressure sensor in the tank detect the pressure in the gas storage tank. The gas outlet of the gas storage tank is connected to the pressure regulating valve through the connecting pipeline, and the pressure regulating valve outputs the fluctuating pressure value in the gas storage tank as The air flow with stable pressure value is output to the flowmeter, the flowmeter is connected to the oxygen concentration sensor, the oxygen concentration sensor is connected to the inlet end of the three-way, and one end of the three-way is connected to the second on-off valve and the detection gas connected to the micro-flow detection sensor. On the way, the other end is connected to the oxygen outlet, and the oxygen concentration sensor detects the oxygen concentration and flow value of the constant flow airflow, and finally the oxygen with the concentration up to the standard and the constant flow is delivered to the user from the oxygen outlet.
当设备处于持续供氧模式时，第二通断阀和微流量检测传感器构成的呼吸检测回路关闭，不工作，流量计常开，此时压力调节阀设定为较低压力值将储气罐内波动的压力值输出为稳定压力值的气流，流量计稳压气流调节为所需的恒定流量气流，输出到氧浓度传感器，氧浓度传感器检测恒定流量气流的氧浓度和流量值，最后经检测的氧气流通过出氧嘴持续供给给使用者；When the device is in the continuous oxygen supply mode, the breathing detection circuit composed of the second on-off valve and the micro-flow detection sensor is closed and does not work, and the flow meter is normally open. At this time, the pressure regulating valve is set to a lower pressure value and the air storage tank The fluctuating pressure value in the output is the airflow with a stable pressure value, and the flowmeter stabilized airflow is adjusted to the required constant flow airflow, which is output to the oxygen concentration sensor, and the oxygen concentration sensor detects the oxygen concentration and flow value of the constant flow airflow, and is finally detected The oxygen flow is continuously supplied to the user through the oxygen outlet;
当设备切换到脉冲模式时，第二通断阀常开，流量计暂闭，压力调节阀全开，不再起调压作用，相当于储气罐直接与流量计连接，流量计将出口调节为较小的孔径，充当一个固定孔径的气阻，当使用者吸气时，空气从微流量检测传感器的出气口进入，通过微流量检测传感器的进气口经过第二通断阀和三通后流向出氧嘴，此时微流量检测传感器检测到微小气流的流动，流量计打开，第二通断阀在延迟一定时间后关闭，流量计后端固定体积的气量大部分通过连接管路输送到出氧嘴，小部分通过三通第一个出气口流过微流量检测传感器后排入空气，微流量检测传感器通过流过的小部分氧气流检测输出氧气的氧浓度，输送完毕后流量计暂闭，第二通断阀打开，进入下一呼吸周期。其特点是：将两种供氧模式集中到一套气路系统上。When the device switches to the pulse mode, the second on-off valve is normally open, the flowmeter is temporarily closed, and the pressure regulating valve is fully opened, which no longer plays the role of pressure regulation. The smaller aperture acts as an air resistance with a fixed aperture. When the user inhales, the air enters from the air outlet of the micro-flow detection sensor, passes through the air inlet of the micro-flow detection sensor, passes through the second on-off valve and the three-way At this time, the micro-flow detection sensor detects the flow of tiny airflow, the flowmeter opens, the second on-off valve closes after a certain time delay, and most of the fixed-volume gas at the back end of the flowmeter is transported to Oxygen outlet, a small part flows through the micro-flow detection sensor through the first air outlet of the tee and then discharges into the air. The micro-flow detection sensor detects the oxygen concentration of the output oxygen through the small part of the oxygen flow that flows through. Closed, the second on-off valve is opened to enter the next breathing cycle. Its characteristics are: the two oxygen supply modes are concentrated on one set of gas system.
实施例2Example 2
如图2所示，一种双模制氧机，所述制氧机包括制氧单元1、储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12、出氧嘴13和呼吸监测单元；As shown in Figure 2, a dual-mode oxygen generator, said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
所述制氧单元1通过设置单向阀2的管路连接储气罐3；The oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
所述储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12和出氧嘴13依次通过连接管路5连接形成主气路，在氧浓度压力监测单元12和出氧嘴13之间的管路上设置第一气路分支点9，所述第一气路分支点9连接检测气路，检测气路上设置呼吸监测单元。The gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle The pipeline between 13 is provided with a first gas path branch point 9, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is set on the detection gas path.
所述制氧机还包括气阻14、第一通断阀15以及旁气路，所述储气罐3、气阻14、第一通断阀15和第一气路分支点9依次通过管路连接形成旁气路。所述呼吸监测单元包括用管路连接的第二通断阀10和微流量检测传感器11。The oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path. The respiratory monitoring unit includes a second on-off valve 10 and a micro-flow detection sensor 11 connected by pipelines.
所述储气罐3上设置罐内压力传感器4。The gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
所述氧浓度压力监测单元采用氧浓度传感器。The oxygen concentration pressure monitoring unit adopts an oxygen concentration sensor.
所述第一气路分支点9采用三通连接。The first gas path branch point 9 adopts a three-way connection.
本实施例中还可以在压力调节阀6和流量计7之间的管路上设置通断阀，以实现相应的气路通断功能。In this embodiment, an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
本实施例中，为减少一条气体通路压力控制的复杂性，可将这一整条气路系统拆分成高低压分离的两条气体通路，所述两条气体通路分为主气路和旁气路，两通路独立运行，主气路能将储气罐储存的氧气持续输送给使用者；旁气路的供气方式是将储气罐储存的氧气在使用者吸气时供气，在使用者呼气时停止供气。所述主气路包括储气罐、罐内压力传感器(检测气体压力值)、压力调节阀、连接管路、通断阀(控制连接管路的通断)、流量计、氧浓度传感器、出氧嘴，罐内压力传感器检测储气罐内压力，压力调节阀进气端与储气罐连接，将储气罐内波动的压力值输出为稳定压力值的气流，压力调节阀出气端稳压气流输送到流量计进气端，流量计出气端将稳压气流调节为所需的恒定流量气流输送到氧浓度传感器的进气端，氧浓度传感器检测恒定流量气流的氧浓度和流量值，最后浓度达标和流量恒定的氧气从氧浓度传感器出气端连接到出氧嘴输送给使用者，上述各部件之间使用连接管路串联为一条气体通路；In this embodiment, in order to reduce the complexity of the pressure control of one gas passage, the entire gas passage system can be split into two gas passages separated by high and low pressure, and the two gas passages are divided into main gas passage and bypass passage. The air circuit, the two channels operate independently, the main air circuit can continuously deliver the oxygen stored in the air storage tank to the user; the air supply method of the side air circuit is to supply the oxygen stored in the air storage tank when the user inhales. The gas supply is stopped when the user exhales. The main gas path includes a gas storage tank, a pressure sensor in the tank (to detect the gas pressure value), a pressure regulating valve, a connecting pipeline, an on-off valve (to control the on-off of the connecting pipeline), a flow meter, an oxygen concentration sensor, an outlet Oxygen nozzle, the pressure sensor in the tank detects the pressure in the gas storage tank, the inlet end of the pressure regulating valve is connected with the gas storage tank, and the fluctuating pressure value in the gas storage tank is output as an air flow with a stable pressure value, and the outlet end of the pressure regulating valve stabilizes the pressure The airflow is sent to the inlet end of the flowmeter, and the outlet end of the flowmeter adjusts the regulated airflow to the required constant flow airflow to the inlet end of the oxygen concentration sensor, and the oxygen concentration sensor detects the oxygen concentration and flow value of the constant flow airflow, and finally Oxygen with a concentration up to standard and a constant flow rate is connected from the outlet end of the oxygen concentration sensor to the oxygen outlet nozzle and delivered to the user, and the above-mentioned components are connected in series to form a gas passage;
所述旁气路包括储气罐、罐内压力传感器(检测气体压力值)、连接管路、气阻、两个通断阀(控制连接管路的通断)、三通、微流量检测传感器、出氧嘴，罐内压力传感器检测储气罐内压力，储气罐通过连接管路连到气阻上，气阻中间以一个恒定面积的小孔来控制储气罐内高压气体的通过气阻的流量，气阻通过连接管路与第一通断阀连接，控制第一通断阀的开关时间可以输出满足当前呼吸频率的固定体积的气量，第一通断阀后端连接到三通进气口上，三通第一个出气口与出氧嘴连接，三通第二个出气口与第二通断阀相连，第二通断阀后端与微流量检测传感器的进气口连接，微流量检测传感器的出气口连接到空气中，使用旁气路通气时，流量计常闭(表示主气路关闭)，第一通断阀先关闭，第二通断阀打开，当使用者吸气时，空气从微流量检测传感器的出气口进入，通过微流量检测传感器的进气口经过第二通断阀后流向出氧嘴，此时微流量检测传感器检测到微小气流的流动，第一通断阀打开，第二通断阀在延迟一定时间后关闭，第一通断阀后端固定体积的气量大部分通过三通第一个出气口输送到出氧嘴，小部分通过微流量检测传感器后排入空气，微流量检测传感器通过流过的小部分氧气流检测输出氧气的氧浓度，输送完毕后第一通断阀关闭，第二通断阀打开，进入下一呼吸周期。The bypass gas path includes a gas storage tank, a pressure sensor in the tank (to detect the gas pressure value), a connecting pipeline, an air resistance, two on-off valves (to control the on-off of the connecting pipeline), a tee, and a micro-flow detection sensor , Oxygen outlet nozzle, the pressure sensor in the tank detects the pressure in the gas storage tank, the gas storage tank is connected to the gas resistance through the connecting pipeline, and a small hole with a constant area is used in the middle of the gas resistance to control the passage of high-pressure gas in the gas storage tank The air resistance is connected to the first on-off valve through the connecting pipeline, and the opening and closing time of the first on-off valve can be controlled to output a fixed volume of gas that meets the current breathing frequency. The rear end of the first on-off valve is connected to the tee On the air inlet, the first air outlet of the three-way is connected to the oxygen outlet, the second air outlet of the three-way is connected to the second on-off valve, and the rear end of the second on-off valve is connected to the air inlet of the micro-flow detection sensor. The air outlet of the micro-flow detection sensor is connected to the air. When the bypass air path is used for ventilation, the flow meter is normally closed (indicating that the main air path is closed), the first on-off valve is closed first, and the second on-off valve is opened. When the user inhales When inflating, the air enters from the air outlet of the micro-flow detection sensor, passes through the air inlet of the micro-flow detection sensor, passes through the second on-off valve, and then flows to the oxygen outlet nozzle. The on-off valve opens, and the second on-off valve closes after a certain time delay. Most of the fixed-volume air volume at the back end of the first on-off valve is delivered to the oxygen nozzle through the first air outlet of the three-way, and a small part passes through the micro-flow detection. After the sensor is discharged into the air, the micro-flow detection sensor detects the oxygen concentration of the output oxygen through a small part of the oxygen flow that flows through. After the delivery is completed, the first on-off valve is closed, and the second on-off valve is opened to enter the next breathing cycle.
本实施例将两条气体通路在出氧嘴前端通过三通并联在一起，其特点是：当需要使用持续供气模式时，旁气路的第一通断阀和第二通断阀关闭，旁气路闭死，主气路正常工作；当需要脉冲供氧时，主气路的流量计关闭，主气路闭死，旁气路正常工作，输出的固定体积的气量等效于持续供氧模式下使用者在吸气阶段吸入的氧气量，将氧气的使用效率提高2-3倍；两条供氧气路可以共用一套制氧单元，如图2所示。In this embodiment, the two gas passages are connected in parallel through a tee at the front end of the oxygen outlet nozzle. The characteristic is that when the continuous gas supply mode is required, the first on-off valve and the second on-off valve of the bypass air passage are closed. The bypass air circuit is closed, and the main air circuit works normally; when pulse oxygen supply is required, the flowmeter of the main air circuit is closed, the main air circuit is closed, and the bypass air circuit works normally, and the output of a fixed volume of gas is equivalent to the continuous supply In the oxygen mode, the amount of oxygen inhaled by the user during the inhalation phase increases the efficiency of oxygen use by 2-3 times; the two oxygen supply circuits can share a set of oxygen production units, as shown in Figure 2.
实施例3Example 3
如图3所示，一种双模制氧机，所述制氧机包括制氧单元1、储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12、出氧嘴13和呼吸监测单元；As shown in Figure 3, a dual-mode oxygen generator, said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
所述制氧单元1通过设置单向阀2的管路连接储气罐3；The oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
所述储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12和出氧嘴13依次通过连接管路5连接形成主气路，在氧浓度压力监测单元12和出氧嘴13之间的管路上设置第一气路分支点9，所述第一气路分支点9连接检测气路，检测气路上设置呼吸监测单元。The gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle The pipeline between 13 is provided with a first gas path branch point 9, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is set on the detection gas path.
所述制氧机还包括气阻14、第一通断阀15以及旁气路，所述储气罐3、气阻14、第一通断阀15和第一气路分支点9依次通过管路连接形成旁气路。所述呼吸监测单元为压差传感器16。The oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path. The breathing monitoring unit is a differential pressure sensor 16 .
所述储气罐3上设置罐内压力传感器4。The gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
所述氧浓度压力监测单元采用氧浓度传感器。The oxygen concentration pressure monitoring unit adopts an oxygen concentration sensor.
所述第一气路分支点9采用三通连接。The first gas path branch point 9 adopts a three-way connection.
本实施例中还可以在压力调节阀6和流量计7之间的管路上设置通断阀，以实现相应的气路通断功能。In this embodiment, an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
本实施例与实施例2相比，采用压差传感器代替微流量检测传感器和第二通断阀构成的呼吸检测支路，采用压差传感器串联在旁气路上实现呼吸监测，此时在脉冲供气模式下无法检测输出气体的氧气浓度值，可通过间歇性短时间打开主气路上的流量计，使少量氧气通过主气路上的氧浓度传感器检测氧浓度。Compared with Embodiment 2, this embodiment uses a differential pressure sensor to replace the breathing detection branch composed of a micro-flow detection sensor and a second on-off valve, and uses a differential pressure sensor to be connected in series on the bypass air path to realize respiratory monitoring. If the oxygen concentration value of the output gas cannot be detected in gas mode, the flow meter on the main gas circuit can be turned on intermittently for a short time, so that a small amount of oxygen can detect the oxygen concentration through the oxygen concentration sensor on the main gas circuit.
本实施例采用氧浓度传感器来检测持续通气时候的氧浓度和氧气流量，并且可以通过检测流量的大小判断出氧嘴是否堵管。In this embodiment, an oxygen concentration sensor is used to detect the oxygen concentration and oxygen flow rate during continuous ventilation, and it is possible to determine whether the oxygen nozzle is blocked by detecting the flow rate.
实施例4Example 4
如图4所示，一种双模制氧机，所述制氧机包括制氧单元1、储气罐3、压力调节阀6、流量计7、压力传感器17、出氧嘴13和呼吸监测单元；As shown in Figure 4, a dual-mode oxygen generator, said oxygen generator comprises an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, a pressure sensor 17, an oxygen outlet nozzle 13 and a breathing monitor unit;
所述制氧单元1通过设置单向阀2的管路连接储气罐3；The oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
所述储气罐3、压力调节阀6、流量计7、压力传感器17和出氧嘴13依次通过连接管路5连接形成主气路，在压力传感器17和出氧嘴13之间的管路上设置第一气路分支点9，所述第一气路分支点9连接检测气路，检测气路上设置呼吸监测单元。The gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the pressure sensor 17 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas circuit, and on the pipeline between the pressure sensor 17 and the oxygen outlet nozzle 13 A first gas path branch point 9 is set, and the first gas path branch point 9 is connected to a detection gas path, and a respiratory monitoring unit is arranged on the detection gas path.
所述制氧机还包括气阻14、第一通断阀15以及旁气路，所述储气罐3、气阻14、第一通断阀15和第一气路分支点9依次通过管路连接形成旁气路。所述呼吸监测单元包括用管路连接的第二通断阀10和微流量检测传感器11。The oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path. The respiratory monitoring unit includes a second on-off valve 10 and a micro-flow detection sensor 11 connected by pipelines.
所述储气罐3上设置罐内压力传感器4。The gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
本实施例采用压力传感器17作为氧浓度压力监测单元。In this embodiment, the pressure sensor 17 is used as the oxygen concentration and pressure monitoring unit.
所述第一气路分支点9采用三通连接。The first gas path branch point 9 adopts a three-way connection.
本实施例中还可以在压力调节阀6和流量计7之间的管路上设置通断阀，以实现相应的气路通断功能。In this embodiment, an on-off valve can also be provided on the pipeline between the pressure regulating valve 6 and the flow meter 7 to realize the corresponding air circuit on-off function.
本实施例中，采用压力传感器代替氧浓度传感器作为氧浓度压力监测单元，在持续供氧模式时，间歇性开启旁气路上的第二通断阀，流过少量氧气后关闭，通过微流量检测传感器检测氧气浓度，流量通过使用机械式流量计手动调节固定，通过压力传感器判断出氧嘴是否堵管。In this embodiment, the pressure sensor is used instead of the oxygen concentration sensor as the oxygen concentration and pressure monitoring unit. In the continuous oxygen supply mode, the second on-off valve on the bypass air circuit is intermittently opened, and then closed after a small amount of oxygen flows through. The sensor detects the oxygen concentration, the flow rate is manually adjusted and fixed by using a mechanical flowmeter, and the pressure sensor is used to judge whether the oxygen nozzle is blocked.
实施例5Example 5
如图5所示，一种双模制氧机，所述制氧机包括制氧单元1、储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12、出氧嘴13和呼吸监测单元；As shown in Figure 5, a dual-mode oxygen generator, said oxygen generator includes an oxygen generator unit 1, an air storage tank 3, a pressure regulating valve 6, a flow meter 7, an oxygen concentration and pressure monitoring unit 12, and an oxygen nozzle 13 and respiratory monitoring unit;
所述制氧单元1通过设置单向阀2的管路连接储气罐3；The oxygen generating unit 1 is connected to the gas storage tank 3 through a pipeline provided with a check valve 2;
所述储气罐3、压力调节阀6、流量计7、氧浓度压力监测单元12和出氧嘴13依次通过连接管路5连接形成主气路，在氧浓度压力监测单元12和出氧嘴13之间的管路上设置第一气路分支点9。The gas storage tank 3, the pressure regulating valve 6, the flow meter 7, the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle 13 are sequentially connected through the connecting pipeline 5 to form a main gas path, and the oxygen concentration pressure monitoring unit 12 and the oxygen outlet nozzle The first gas path branch point 9 is set on the pipeline between 13.
所述制氧机还包括气阻14、第一通断阀15以及旁气路，所述储气罐3、气阻14、第一通断阀15和第一气路分支点9依次通过管路连接形成旁气路。The oxygen generator also includes a gas block 14, a first on-off valve 15 and a bypass gas path, and the gas storage tank 3, the gas block 14, the first on-off valve 15 and the first gas path branch point 9 pass through the pipe in sequence. road connection to form a bypass air path.
所述储气罐3上设置罐内压力传感器4。The gas storage tank 3 is provided with a pressure sensor 4 inside the tank.
所述氧浓度压力监测单元采用具备氧浓度、氧流量和呼吸微流量检测功能的集成化传感器。The oxygen concentration and pressure monitoring unit adopts an integrated sensor capable of detecting oxygen concentration, oxygen flow and respiratory microflow.
所述第一气路分支点9采用三通连接。The first gas path branch point 9 adopts a three-way connection.
在氧浓度压力监测单元12和流量计7之间的管路上设置第二气路分支点，第 二气路分支点连接第三通断阀18。On the pipeline between the oxygen concentration pressure monitoring unit 12 and the flow meter 7, a second gas path branch point is set, and the second gas path branch point is connected to the third on-off valve 18.
本实施例为了精简结构，提高可靠性，将主气路上的氧浓度传感器和支路的微流量检测传感器替换成可检测氧浓度、流量和呼吸微流量的集成化传感器，将两条气路更加集成化。当在持续供气模式时，第三通断阀以及旁气路上的第一通断阀关闭，集成化传感器充当氧浓度传感器使用；当在脉冲供氧模式时，主气路上的流量计关闭，旁气路上的第一通断阀开启，此时集成化传感器充当微流量检测传感器与第三通断阀构成呼吸检测支路，集成化传感器和第三通断阀作为呼吸监测单元使用。In this embodiment, in order to simplify the structure and improve reliability, the oxygen concentration sensor on the main gas circuit and the micro-flow detection sensor on the branch circuit are replaced with integrated sensors that can detect oxygen concentration, flow rate and respiratory micro-flow rate, and the two gas circuits are more integrated. Integrated. When in the continuous air supply mode, the third on-off valve and the first on-off valve on the bypass air path are closed, and the integrated sensor acts as an oxygen concentration sensor; when in the pulse oxygen supply mode, the flow meter on the main air path is closed, The first on-off valve on the bypass air path is opened. At this time, the integrated sensor acts as a micro-flow detection sensor and the third on-off valve forms a breathing detection branch, and the integrated sensor and the third on-off valve are used as a breathing monitoring unit.
实施例6Example 6
如图6所示，基于前述实施例1-5，可以将双模制氧机与血氧仪19并联使用搭配构建的智能化健康控制系统，添加血氧仪检测使用者的血氧饱和度，当在长期持续供氧的情况下，使用者8的血氧浓度仍低于95％时，制氧机自动将供氧模式调整为脉冲供氧模式，提升治疗效果，在使用者8血氧饱和度提高到98％以上时，制氧机切换回持续供氧模式并语音提示使用者血氧饱和度已恢复正常，避免长期高效制氧导致氧中毒。As shown in Figure 6, based on the foregoing embodiments 1-5, the dual-mode oxygen generator and the oximeter 19 can be used in parallel to form an intelligent health control system, and the oximeter can be added to detect the blood oxygen saturation of the user. When the blood oxygen concentration of user 8 is still lower than 95% under long-term continuous oxygen supply, the oxygen generator will automatically adjust the oxygen supply mode to pulse oxygen supply mode to improve the therapeutic effect. When the temperature rises above 98%, the oxygen concentrator switches back to the continuous oxygen supply mode and voice prompts the user that the blood oxygen saturation has returned to normal, so as to avoid oxygen poisoning caused by long-term efficient oxygen production.
本发明未详细说明的内容均可采用本领域的常规技术知识。The conventional technical knowledge in this field can be used for the contents not described in detail in the present invention.
最后所应说明的是，以上实施例仅用以说明本发明的技术方案而非限制。尽管参照实施例对本发明进行了详细说明，本领域的普通技术人员应该理解，对本发明的技术方案进行修改或者等同替换，都不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent replacements to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all should be covered by the present invention. within the scope of the claims.

Claims (9)

  1. 一种双模制氧机，其特征在于，所述制氧机包括制氧单元、储气罐、压力调节阀、流量计、氧浓度压力监测单元、出氧嘴和呼吸监测单元；A dual-mode oxygen generator, characterized in that the oxygen generator includes an oxygen generator unit, an air storage tank, a pressure regulating valve, a flow meter, an oxygen concentration and pressure monitoring unit, an oxygen outlet nozzle, and a breathing monitoring unit;
    所述制氧单元通过设置单向阀的管路连接储气罐；The oxygen generating unit is connected to the gas storage tank through a pipeline provided with a one-way valve;
    所述储气罐、压力调节阀、流量计、氧浓度压力监测单元和出氧嘴依次通过管路连接形成主气路，在氧浓度压力监测单元和出氧嘴之间的管路上设置第一气路分支点，所述第一气路分支点连接检测气路，检测气路上设置呼吸监测单元。The gas storage tank, pressure regulating valve, flow meter, oxygen concentration and pressure monitoring unit and oxygen outlet nozzle are sequentially connected through pipelines to form a main gas circuit, and a first A gas path branch point, the first gas path branch point is connected to a detection gas path, and a respiratory monitoring unit is arranged on the detection gas path.
  2. 根据权利要求1所述的双模制氧机，其特征在于，所述制氧机还包括气阻、第一通断阀以及旁气路，所述储气罐、气阻、第一通断阀和第一气路分支点依次通过管路连接形成旁气路。The dual-mode oxygen concentrator according to claim 1, characterized in that, the oxygen concentrator further comprises an air block, a first on-off valve and a bypass air path, and the gas storage tank, the air block, the first on-off valve The valve and the branch point of the first gas path are sequentially connected through pipelines to form a bypass gas path.
  3. 根据权利要求2所述的双模制氧机，其特征在于，在氧浓度压力监测单元和流量计之间的管路上设置第二气路分支点，第二气路分支点连接第三通断阀；The dual-mode oxygen generator according to claim 2, characterized in that a second gas path branch point is set on the pipeline between the oxygen concentration pressure monitoring unit and the flowmeter, and the second gas path branch point is connected to the third on-off point valve;
    当第二气路分支点连接第三通断阀时，第一气路分支点不连接检测气路。When the second gas path branch point is connected to the third on-off valve, the first gas path branch point is not connected to the detection gas path.
  4. 根据权利要求1所述的双模制氧机，其特征在于，所述呼吸监测单元为第二通断阀和微流量传感器，或压差传感器。The dual-mode oxygen concentrator according to claim 1, wherein the breathing monitoring unit is a second on-off valve and a micro flow sensor, or a differential pressure sensor.
  5. 根据权利要求1所述的双模制氧机，其特征在于，所述氧浓度压力监测单元为氧浓度传感器或氧压力传感器或具备氧浓度、氧流量和呼吸微流量检测功能的集成化传感器。The dual-mode oxygen concentrator according to claim 1, wherein the oxygen concentration and pressure monitoring unit is an oxygen concentration sensor or an oxygen pressure sensor or an integrated sensor capable of detecting oxygen concentration, oxygen flow and respiratory microflow.
  6. 根据权利要求1所述的双模制氧机，其特征在于，所述储气罐上设置罐内压力传感器。The dual-mode oxygen concentrator according to claim 1, wherein a pressure sensor inside the tank is arranged on the gas storage tank.
  7. 一种供氧系统，其特征在于，所述供氧系统包括血氧仪和权利要求1-6任一项所述的双模制氧机，所述双模制氧机和血氧仪并联于控制单元。An oxygen supply system, characterized in that the oxygen supply system comprises an oximeter and the dual-mode oxygen concentrator according to any one of claims 1-6, the dual-mode oxygen concentrator and the oximeter are connected in parallel control unit.
  8. 一种双模制氧机的供氧方法，所述供氧方法包括以下步骤：An oxygen supply method for a dual-mode oxygen generator, the oxygen supply method comprising the following steps:
    1)所述制氧单元持续制氧并将制取氧气输送到储气罐储存；根据使用者需要提供持续供氧模式或脉冲供氧模式；1) The oxygen production unit continuously produces oxygen and transports the produced oxygen to the gas storage tank for storage; it provides continuous oxygen supply mode or pulse oxygen supply mode according to user needs;
    2)持续供氧模式：2) Continuous oxygen supply mode:
    关闭检测气路以及呼吸监测单元；Close the detection gas circuit and the respiratory monitoring unit;
    储气罐通过压力调节阀和流量计输出稳压恒定流量气流，稳压恒定流量气流 输出到氧浓度压力监测单元，氧浓度压力监测单元检测恒定流量气流的氧浓度和流量值，最后经检测的氧气流通过出氧嘴持续供给使用者；The air storage tank outputs a constant-pressure and constant-flow gas flow through a pressure regulating valve and a flow meter, and the constant-pressure and constant-flow gas flow is output to the oxygen concentration and pressure monitoring unit. The oxygen concentration and pressure monitoring unit detects the oxygen concentration and flow value of the constant flow gas flow. The oxygen flow is continuously supplied to the user through the oxygen outlet;
    脉冲供氧模式：Pulse oxygen supply mode:
    当切换到脉冲模式时，常开检测气路以及呼吸监测单元，流量计先关闭；When switching to the pulse mode, the detection gas path and the respiratory monitoring unit are normally open, and the flow meter is first closed;
    当使用者吸气时，空气从呼吸监测单元的出气口进入，通过呼吸监测单元后流向出氧嘴，此时呼吸监测单元检测到微小气流的流动，流量计打开，呼吸监测单元在延迟一定时间后关闭，流量计后端固定体积的气量大部分通过氧浓度压力监测单元输送到出氧嘴，小部分通过呼吸监测单元后排入空气，呼吸监测单元通过流过的小部分氧气流检测输出氧气的浓度，输送完毕后流量计关闭，呼吸监测单元打开，进入下一呼吸周期。When the user inhales, the air enters from the air outlet of the respiratory monitoring unit, passes through the respiratory monitoring unit and then flows to the oxygen outlet mouth. At this time, the respiratory monitoring unit detects the flow of tiny airflow, the flow meter opens, and the respiratory monitoring unit delays for a certain period of time. After closing, most of the gas with a fixed volume at the back end of the flowmeter is sent to the oxygen nozzle through the oxygen concentration and pressure monitoring unit, and a small part is discharged into the air after passing through the breathing monitoring unit, and the breathing monitoring unit detects and outputs oxygen through a small part of the oxygen flow flowing through. After the delivery is completed, the flow meter is turned off, the respiratory monitoring unit is turned on, and the next respiratory cycle is entered.
  9. 一种双模制氧机的供氧方法，所述供氧方法包括以下步骤：An oxygen supply method for a dual-mode oxygen generator, the oxygen supply method comprising the following steps:
    1)所述制氧单元持续制氧并将制取氧气输送到储气罐储存；根据使用者需要提供持续供氧模式或脉冲供氧模式；1) The oxygen production unit continuously produces oxygen and transports the produced oxygen to the gas storage tank for storage; it provides continuous oxygen supply mode or pulse oxygen supply mode according to user needs;
    2)持续供氧模式：2) Continuous oxygen supply mode:
    关闭检测气路以及呼吸监测单元；关闭第一通断阀；Close the detection gas circuit and the respiratory monitoring unit; close the first on-off valve;
    储气罐通过压力调节阀和流量计输出稳压恒定流量气流，稳压恒定流量气流通过第一通断阀后输出到氧浓度压力监测单元，氧浓度压力监测单元检测恒定流量气流的氧浓度和流量值，最后经检测的氧气流通过出氧嘴持续供给使用者；The air storage tank outputs a constant-pressure and constant-flow airflow through a pressure regulating valve and a flow meter. The constant-pressure and constant-flow airflow passes through the first on-off valve and then is output to the oxygen concentration and pressure monitoring unit. The oxygen concentration and pressure monitoring unit detects the oxygen concentration and The flow value, and finally the detected oxygen flow is continuously supplied to the user through the oxygen outlet;
    脉冲供氧模式：Pulse oxygen supply mode:
    当切换到脉冲模式时，常开检测气路以及呼吸监测单元，关闭流量计；When switching to pulse mode, normally open the detection gas circuit and the respiratory monitoring unit, and close the flow meter;
    当使用者吸气时，空气从呼吸监测单元的出气口进入，通过呼吸监测单元后流向出氧嘴，此时呼吸监测单元检测到微小气流的流动，第一通断阀打开，呼吸监测单元在延迟一定时间后关闭，通过第一通断阀后固定体积的气量大部分再通过气阻输送到出氧嘴，小部分通过呼吸监测单元后排入空气，呼吸监测单元通过流过的小部分氧气流检测输出氧气的浓度，输送完毕后第一通断阀关闭，呼吸监测单元打开，进入下一呼吸周期。When the user inhales, the air enters from the air outlet of the respiratory monitoring unit, passes through the respiratory monitoring unit, and then flows to the oxygen outlet mouth. At this time, the respiratory monitoring unit detects the flow of the tiny airflow, the first on-off valve opens, and the respiratory monitoring unit After a certain time delay, it will be closed. After passing through the first on-off valve, most of the fixed volume of gas will be transported to the oxygen outlet nozzle through the air resistance, and a small part will be discharged into the air after passing through the respiratory monitoring unit. The respiratory monitoring unit will pass through a small part of the oxygen flowing through. Flow detection outputs the concentration of oxygen. After the delivery is completed, the first on-off valve is closed, and the respiratory monitoring unit is opened to enter the next breathing cycle.
PCT/CN2022/131998 2021-12-20 2022-11-15 Dual-mode oxygen generator and oxygen supply method thereof WO2023116265A1 (en)

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