Portable self-adaptive intelligent monitoring oxygen generator

Abstract

The application provides a portable self-adaptive intelligent monitoring oxygen generator, which comprises an oxygen production module, an oxygen storage and output module and an oxygen inhalation device connected in sequence, the oxygen production module comprises an air inlet treatment device, a compressor assembly and a molecular sieve oxygen production assembly connected in sequence, the oxygen storage and output module comprises an intelligent pressure regulating gas storage tank, a digital flow regulating assembly and an oxygen filtering and humidifying assembly connected in sequence, the oxygen filtering and humidifying assembly is provided with an oxygen outlet, the oxygen inhalation device is connected with the oxygen outlet, the oxygen generator further comprises a detection module and an intelligent control system, the detection module comprises an oxygen concentration and flow detection assembly and a CO2 detection assembly, the oxygen concentration and flow detection assembly is arranged between the digital flow regulating assembly and the oxygen filtering and humidifying assembly, the oxygen inhalation device is provided with a sampling port, the CO2 detection assembly is connected with the sampling port, and the intelligent control system can intelligently monitor and control the oxygen generator according to the change of CO2 content in the breathing process of a user.

Description

Technical Field

[0001] This invention relates to the field of oxygen concentrator technology, specifically to a portable adaptive intelligent monitoring oxygen concentrator. Background Technology

[0002] An oxygen concentrator is a machine that produces oxygen. It works by using air separation technology. First, other gases in the air are physically separated and then discharged, followed by the output or storage of the remaining high-concentration oxygen for user use.

[0003] Portable oxygen concentrators offer a more flexible solution to people's oxygen needs. The oxygen production principles of oxygen concentrators include molecular sieve principles, water electrolysis principles, and polymer oxygen-enriching membrane principles. Currently, most oxygen concentrators use the molecular sieve principle, which separates nitrogen and oxygen in the air through pressure swing adsorption (PSA) to obtain high-concentration oxygen. However, existing portable oxygen concentrators have low levels of intelligence, easily leading to wasted oxygen supply and shortened equipment lifespan. Their oxygen flow regulation methods are also limited, posing certain risks to the user.

[0004] Traditional portable oxygen concentrators operate in a single oxygen supply mode, with users adjusting the oxygen flow and concentration based on experience and personal habits. Without the support of hospital-grade equipment, users and medical staff cannot assess the effectiveness of oxygen therapy or make timely adjustments, which can easily lead to unforeseen harms. Summary of the Invention

[0005] This invention addresses the problems of low intelligence, wasted oxygen supply, and inability to monitor oxygen absorption effect in current oxygen concentrators by proposing a portable adaptive intelligent monitoring oxygen concentrator.

[0006] This invention proposes a portable adaptive intelligent monitoring oxygen concentrator, comprising an oxygen generation module, an oxygen storage and output module, and an oxygen inhalation device connected in sequence. The oxygen generation module includes an air intake treatment device, a compressor assembly, and a molecular sieve oxygen generation assembly connected in sequence. The oxygen storage and output module includes an intelligent pressure regulating gas tank, a digital flow regulation assembly, and an oxygen filtration and humidification assembly connected in sequence. The oxygen filtration and humidification assembly has an oxygen outlet, and the oxygen inhalation device is connected to the oxygen outlet. The oxygen concentrator also includes a detection module and an intelligent control system. The detection module includes an oxygen concentration and flow rate detection assembly and a CO2 detection assembly. The oxygen concentration and flow rate detection assembly is located between the digital flow regulation assembly and the oxygen filtration and humidification assembly. The oxygen inhalation device has a sampling port, and the CO2 detection assembly is connected to the sampling port. The intelligent control system can intelligently monitor and control the oxygen concentrator based on changes in CO2 content during the user's breathing.

[0007] Preferably, the oxygen inhalation device consists of an oxygen delivery tube and an oxygen inhalation mask, with one end of the oxygen delivery tube connected to the oxygen outlet and the other end connected to the oxygen inhalation mask.

[0008] Preferably, the CO2 detection component includes a sampling tube and a CO2 sensor. The sampling port is located inside the oxygen mask. One end of the sampling tube is connected to the sampling port, and the other end is connected to the compressor component to form a sampling circuit. The CO2 sensor is connected to the sampling circuit.

[0009] Preferably, the CO2 detection component can detect and output CO2 concentration, end-tidal CO2 concentration, inhaled CO2 concentration, and respiratory rate.

[0010] Preferably, the intelligent control system includes a main control board, a display module, a human-machine interaction module, a pressure sensor, an alarm system, and an oxygen generator intelligent control module.

[0011] Preferably, the oxygen concentration and flow rate detection component includes an oxygen concentration and flow rate sensor, and the oxygen generator intelligent control module can intelligently adjust the oxygen flow rate and oxygen concentration through a flow regulating valve based on the output data of the oxygen concentration and flow rate sensor.

[0012] Preferably, the intelligent control module of the oxygen generator can intelligently adjust the switching time, equalization time, and gas tank pressure according to changes in ambient temperature and usage requirements.

[0013] Preferably, the CO2 detection component includes a CO2 sensor, and an on / off solenoid valve is further provided between the oxygen concentration and flow detection component and the oxygen filtration and humidification component. The oxygen generator intelligent control module can adjust the oxygen supply on / off through the on / off solenoid valve based on the output data of the CO2 sensor.

[0014] Preferably, the detection module further includes a temperature and humidity sensor, and the oxygen generator intelligent control module can intelligently adjust the oxygen generation component based on the output data of the temperature and humidity sensor.

[0015] Preferably, the human-computer interaction module can realize one or more of the following operation methods: touch operation, voice control, gesture control, and remote control.

[0016] Preferably, the alarm system includes a pressure alarm, an oxygen concentration alarm, a power failure alarm, a persistently low CO2 concentration alarm, a high CO2 concentration alarm, an abnormal end-tidal CO2 concentration alarm, and a respiratory rate alarm.

[0017] The beneficial effects of this invention are:

[0018] 1. This portable adaptive intelligent monitoring oxygen concentrator has a respiratory monitoring function, which can monitor CO2 and ETCO2 (end-tidal carbon dioxide concentration) levels in real time, helping to determine the physical condition of the monitored person. It can provide continuous oxygen supply and monitoring services in a low-cost and portable manner.

[0019] 2. This portable adaptive intelligent monitoring oxygen generator has an oxygen adaptive adjustment function, which can dynamically adjust the oxygen concentration and oxygen flow rate according to changes in respiratory CO2 and ETCO2.

[0020] 3. This portable adaptive intelligent monitoring oxygen concentrator uses CO2 detection as an indicator for oxygen supply on / off, enabling intermittent oxygen supply, thereby reducing energy consumption, minimizing oxygen waste during exhalation, and improving oxygen inhalation effect.

[0021] 4. This portable adaptive intelligent monitoring oxygen generator has the function of dynamically adjusting parameters such as oxygen production pressurization time, pressure equalization time, and gas tank pressure according to the current temperature changes and usage needs, so that the machine is always in the best working performance.

[0022] 5. This portable adaptive intelligent monitoring oxygen concentrator has multiple alarm functions, including pressure alarm, oxygen concentration alarm, power failure alarm, persistently low carbon dioxide concentration alarm, high carbon dioxide concentration alarm, abnormal end-tidal CO2 concentration (ETCO2) alarm, and respiratory rate alarm, which is of great significance for patients at home.

[0023] 6. This portable adaptive intelligent monitoring oxygen generator has multiple human-computer interaction and recording functions, and can perform one or more operation modes such as touch operation, voice control, gesture control, and remote control. It can record and store operating data for a certain period of time. Attached Figure Description

[0024] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a simplified structural diagram of the portable adaptive intelligent monitoring oxygen generator described in this invention.

[0026] Figure 2 This is a control principle diagram of the portable adaptive intelligent monitoring oxygen generator described in this invention.

[0027] Figure 3 This is a schematic diagram showing the specific positions of the nasal oxygen inhalation tube and the sampling tube described in this invention.

[0028] Figure 4This is a simplified structural diagram of the oxygen inhalation device described in this invention.

[0029] Figure 5 This is a line graph showing the change in CO2 content with respiration as described in this invention.

[0030] In the diagram: 1. Air intake treatment device; 2. Compressor assembly; 3. CO2 detection assembly; 4. Molecular sieve oxygen generation assembly; 5. Intelligent pressure regulating gas storage tank; 6. On / off solenoid valve; 7. Digital flow regulation assembly; 8. Oxygen concentration and flow detection assembly; 9. Oxygen filtration and humidification assembly; 10. Intelligent control system; 11. Oxygen outlet; 12. Sampling port; 13. Nasal oxygen cannula; 14. Sampling tube; 15. Oxygen delivery tube; 16. Oxygen mask. Detailed Implementation

[0031] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0032] like Figure 1 As shown in the figure, the arrows point in the direction of gas flow. In this embodiment, the present invention proposes a portable adaptive intelligent monitoring oxygen concentrator, comprising an oxygen generation module, an oxygen storage and output module, and an oxygen inhalation device connected in sequence. The oxygen generation module includes an air intake treatment device 1, a compressor assembly 2, and a molecular sieve oxygen generation assembly 4 connected in sequence. The oxygen storage and output module includes an intelligent pressure regulating gas tank 5, a digital flow regulation assembly 7, and an oxygen filtration and humidification assembly 9 connected in sequence. The oxygen filtration and humidification assembly 9 has an oxygen outlet 11, and the oxygen inhalation device is connected to the oxygen outlet 11. The oxygen concentrator also includes a detection module and an intelligent control system 10. The detection module includes an oxygen concentration and flow rate detection assembly 8 and a CO2 detection assembly 3. The CO2 detection assembly 3 can detect and output CO2 concentration, end-tidal CO2 concentration, inhaled CO2 concentration, and respiratory rate. The oxygen concentration and flow rate detection assembly 8 is located between the digital flow regulation assembly 7 and the oxygen filtration and humidification assembly 9. The oxygen inhalation device is provided with a sampling port 12, and the CO2 detection assembly 3 is connected to the sampling port 12. The intelligent control system 10 can intelligently monitor and control the oxygen concentrator according to the changes in CO2 content during the user's breathing.

[0033] Specifically, the intelligent control system 10 mainly includes a main control board, a display module, a human-machine interaction module, a pressure sensor, an alarm system, and an intelligent control module for the oxygen concentrator, such as... Figure 2As shown, the oxygen concentration and flow detection component 8 includes an oxygen concentration and flow sensor. The intelligent control module of the oxygen concentrator can intelligently adjust the oxygen flow and concentration through a flow regulating valve based on the output data of the oxygen concentration and flow sensor. This intelligent control module can be implemented through hardware, software, or a combination of both. The CO2 detection component 3 includes a CO2 sensor. An on / off solenoid valve 6 is also installed between the oxygen concentration and flow detection component 8 and the oxygen filtration and humidification component 8. The intelligent control module can regulate the oxygen supply through the on / off solenoid valve 6 based on the output data of the CO2 sensor, achieving intermittent oxygen supply, thereby reducing energy consumption, minimizing oxygen waste during exhalation, and improving oxygen absorption. The detection module also includes a temperature and humidity sensor. The intelligent control module can intelligently adjust the oxygen flow and concentration within a reasonable range based on the output data of the temperature and humidity sensor, preventing insufficient or excessive oxygen intake.

[0034] The intelligent control module of the oxygen concentrator can also intelligently adjust parameters such as switching time, equalization time, and gas tank pressure according to factors such as changes in ambient temperature and usage needs, so that the oxygen concentrator can maintain optimal operation, improve oxygen concentration and user experience, extend service life, and reduce energy consumption.

[0035] like Figure 3 The image shows the specific locations of a nasal oxygen cannula 13 and a sampling tube 14; as shown. Figure 4 As shown, the oxygen inhalation device consists of an oxygen delivery tube 15 and an oxygen inhalation mask 16. One end of the oxygen delivery tube 15 is connected to the oxygen outlet 11, and the other end is connected to the oxygen inhalation mask 16.

[0036] like Figure 1 , Figure 4 As shown, the CO2 detection assembly includes a sampling tube 14 and a CO2 sensor. The sampling port 12 is located inside the oxygen mask 16. One end of the sampling tube 14 is connected to the sampling port 12, and the other end is connected to the compressor assembly 2 to form a sampling circuit. The CO2 sensor is connected to the sampling circuit.

[0037] The human-computer interaction module can realize one or more of the following operation methods: touch operation, voice control, gesture control, and remote control.

[0038] The alarm system includes pressure alarm, oxygen concentration alarm, power failure alarm, persistently low CO2 concentration alarm, high CO2 concentration alarm, abnormal end-tidal CO2 concentration alarm, respiratory rate alarm, and a wireless monitoring module. This alarm system is of great value to bedridden patients at home. It can be used for physiological status monitoring and can provide immediate alerts in case of emergencies, such as when the oxygen tubing is bent or when the carbon dioxide level in the environment exceeds the standard. This ensures the safety of bedridden patients at home.

[0039] The working principle of this portable adaptive intelligent monitoring oxygen concentrator is as follows:

[0040] like Figure 5 The graph shows the changes in CO2 content during respiration, with the horizontal axis representing time and the vertical axis representing CO2 content. Phase AB represents the beginning of exhalation; phase BC shows a rapid increase in CO2; phase CD shows the plateau stage of gas exchange; point D represents the end-expiratory CO2 concentration, taken at the end of exhalation; and phase DE shows the beginning of inhalation, with CO2 rapidly decreasing. Based on these patterns, we can derive the following rules for CO2 changes and oxygen flow control: ① At the beginning of exhalation, the air is in the dead space of the respiratory tract, with a very low CO2 content. Oxygen supply stops at this point. ② As expiratory volume increases, the air becomes a mixture of alveolar and dead space gases, and CO2 rises sharply. ③ The expiratory plateau consists of mixed alveolar gas, with a horizontal or slightly upward-sloping CO2 value. The plateau endpoint is the end-expiratory CO2 value, or ETCO2. An excessively high ETCO2 value mainly indicates insufficient alveolar ventilation or increased CO2 input to the alveoli; therefore, the subsequent oxygen supply should be appropriately increased based on the magnitude of the increase. An excessively low ETCO2 value mainly indicates excessive alveolar ventilation or decreased CO2 input to the alveoli; therefore, the subsequent oxygen supply should be appropriately reduced based on the magnitude of the decrease. ④ At the start of inhalation, the CO2 level drops rapidly and steeply to zero; oxygen supply continues at this point. ⑤ At the baseline of inhalation, CO2 is at zero; oxygen supply continues throughout this phase. ⑥ Inhalation and exhalation immediately transition back to step ①.

[0041] When using an oxygen concentrator and for treatment, the delivery pressure, output volume, and oxygen concentration are adjusted based on changes in CO2 and ETCO2 (end-expiratory CO2 concentration) to maintain ETCO2 close to healthy individuals or pre-treatment levels. Monitoring its waveform also determines whether the oxygen concentrator is functioning properly and whether the user's breathing is normal. In case of malfunctions such as leaks, tubing twisting, or tracheal obstruction, changes in ETCO2 readings and waveforms will immediately appear, triggering an alarm for timely detection and intervention. Continuous monitoring provides a basis for safe withdrawal from the oxygen concentrator. For example, malignant hyperthermia, elevated body temperature, and intravenous administration of large amounts of NaHCO3 can increase CO2 production, raise ETCO2, and increase its amplitude. Conversely, in cases of shock, cardiac arrest, pulmonary air embolism, or thromboembolism, reduced pulmonary blood flow can cause CO2 levels to drop rapidly to zero. ETCO2 also helps assess the effectiveness of cardiopulmonary resuscitation; excessively low ETCO2 requires ruling out factors such as over-oxygenation.

[0042] As can be seen from the above embodiments, the beneficial effects of the present invention are:

[0043] 1. This portable adaptive intelligent monitoring oxygen concentrator has a respiratory monitoring function, which can monitor CO2 and ETCO2 (end-tidal carbon dioxide concentration) levels in real time, helping to determine the physical condition of the monitored person. It can provide continuous oxygen supply and monitoring services in a low-cost and portable manner.

[0044] 2. This portable adaptive intelligent monitoring oxygen generator has an oxygen adaptive adjustment function, which can dynamically adjust the oxygen concentration and oxygen flow rate according to changes in respiratory CO2 and ETCO2.

[0045] 3. This portable adaptive intelligent monitoring oxygen concentrator uses CO2 detection as an indicator for oxygen supply on / off, enabling intermittent oxygen supply, thereby reducing energy consumption, minimizing oxygen waste during exhalation, and improving oxygen inhalation effect.

[0046] 4. This portable adaptive intelligent monitoring oxygen generator has the function of dynamically adjusting parameters such as oxygen production pressurization time, pressure equalization time, and gas tank pressure according to the current temperature changes and usage needs, so that the machine is always in the best working performance.

[0047] 5. This portable adaptive intelligent monitoring oxygen concentrator has multiple alarm functions, including pressure alarm, oxygen concentration alarm, power failure alarm, persistently low carbon dioxide concentration alarm, high carbon dioxide concentration alarm, abnormal end-tidal CO2 concentration (ETCO2) alarm, and respiratory rate alarm, which is of great significance for patients at home.

[0048] 6. This portable adaptive intelligent monitoring oxygen generator has multiple human-computer interaction and recording functions, and can perform one or more operation modes such as touch operation, voice control, gesture control, and remote control. It can record and store operating data for a certain period of time.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable self-adaptive intelligent monitoring oxygen generator, characterized in that, The device includes an oxygen generation module, an oxygen storage and output module, and an oxygen inhalation device connected in sequence. The oxygen generation module includes an air intake treatment device, a compressor assembly, and a molecular sieve oxygen generation assembly connected in sequence. The oxygen storage and output module includes an intelligent pressure regulating gas tank, a digital flow regulating assembly, and an oxygen filtration and humidification assembly connected in sequence. The oxygen filtration and humidification assembly has an oxygen outlet, and the oxygen inhalation device is connected to the oxygen outlet. The oxygen concentrator also includes a detection module and an intelligent control system. The detection module includes an oxygen concentration and flow rate detection component and a CO2 detection component. The oxygen concentration and flow rate detection component is located between the digital flow rate adjustment component and the oxygen filtration and humidification component. The oxygen concentration and flow rate detection component includes an oxygen concentration and flow rate sensor. The intelligent control module of the oxygen concentrator can intelligently adjust the oxygen flow rate and oxygen concentration through a flow rate adjustment valve based on the output data of the oxygen concentration and flow rate sensor. The oxygen inhalation device is provided with a sampling port, and the CO2 detection component is connected to the sampling port. The CO2 detection component can detect and output CO2 concentration, end-tidal CO2 concentration, inhaled CO2 concentration, and respiratory rate. The CO2 detection component includes a CO2 sensor. The oxygen concentration and flow rate detection component is located between the oxygen filtration and humidification component. The system also includes an on / off solenoid valve. The intelligent control module of the oxygen concentrator can adjust the oxygen supply through the on / off solenoid valve based on the output data of the CO2 sensor. The intelligent control system can intelligently monitor and control the oxygen concentrator based on changes in CO2 content during the user's breathing. At the beginning of exhalation, the air in the dead space of the respiratory tract contains very low CO2 content, and the CO2 value begins to rise. At this time, the on / off solenoid valve is closed to stop oxygen supply. At the beginning of inhalation, the CO2 value drops rapidly and steeply to zero. At the point where the drop begins, the on / off solenoid valve is opened to continue oxygen supply. When the CO2 is at zero, the on / off solenoid valve remains open to maintain oxygen supply. At the moment of transition between inhalation and exhalation, the on / off solenoid valve is closed to stop oxygen supply. The CO2 value at the end of exhalation is the ETCO2 value. If the ETCO2 value is too high, the subsequent oxygen delivery will be increased; if the ETCO2 value is too low, the subsequent oxygen delivery will be reduced.

2. The portable adaptive intelligent monitoring oxygen generator of claim 1, wherein, The oxygen inhalation device consists of an oxygen delivery tube and an oxygen inhalation mask. One end of the oxygen delivery tube is connected to the oxygen outlet, and the other end is connected to the oxygen inhalation mask.

3. The portable adaptive smart monitoring oxygen generator of claim 2, wherein, The CO2 detection component includes a sampling tube and a CO2 sensor. The sampling port is located inside the oxygen mask. One end of the sampling tube is connected to the sampling port, and the other end is connected to the compressor component to form a sampling circuit. The CO2 sensor is connected to the sampling circuit.

4. The portable adaptive smart monitoring oxygen generator of claim 1, wherein, The intelligent control system includes a main control board, a display module, a human-machine interaction module, a pressure sensor, an alarm system, and an intelligent control module for the oxygen generator.

5. The portable adaptive smart monitoring oxygen generator of claim 4, wherein, The detection module also includes a temperature and humidity sensor, and the oxygen generator intelligent control module can intelligently adjust the oxygen generation component based on the output data of the temperature and humidity sensor.

6. The portable adaptive smart monitoring oxygen generator of claim 4, wherein, The human-computer interaction module can realize one or more of the following operation methods: touch operation, voice control, gesture control, and remote control.

7. The portable adaptive smart monitoring oxygen generator of claim 4, wherein, The alarm system includes pressure alarm, oxygen concentration alarm, power failure alarm, persistently low CO2 concentration alarm, high CO2 concentration alarm, abnormal end-tidal CO2 concentration alarm, and respiratory rate alarm.

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