CN102120054A - Portable respirator based on self-supply of oxygen - Google Patents
Portable respirator based on self-supply of oxygen Download PDFInfo
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- CN102120054A CN102120054A CN2011100554263A CN201110055426A CN102120054A CN 102120054 A CN102120054 A CN 102120054A CN 2011100554263 A CN2011100554263 A CN 2011100554263A CN 201110055426 A CN201110055426 A CN 201110055426A CN 102120054 A CN102120054 A CN 102120054A
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Abstract
The invention relates to a portable respirator based on the self-supply of oxygen, which comprises a respirator (1), and is characterized by also comprising a self-prepared oxygen source device (2), wherein the respirator (1) and the oxygen source device (2) are connected by an easily-detachable connecting structure; the oxygen source device (2) comprises a shell (2-1) with an air inlet; a filter (2-2), a supercharger (2-3), a cooler (2-4), an electromagnetic valve (2-5), a molecular sieve bed (2-6), an oxygen tank (2-7), a pressure regulating valve (2-8), a power module (2-14), a program logic controller (PLC) (2-15) and an operation state display mode (2-16) are arranged in the shell; one of the input/output (I/O) ports of the program logic controller (PLC) (2-15) is connected with the signal input/output end of the supercharger (2-3); another I/O port of the program logic controller (PLC) (2-15) is connected with the signal input and output end of the electromagnetic valve (2-5); and the left I/O port of the program logic controller (PLC) (2-15) is connected with the one of the signal input/output ends of the operation state display mode (2-16). In the invention, seamless connection and oxygen self-supply can be realized, and the portable respirator has the characteristics of portability, safety, reliability and wide application range.
Description
Technical field:
The present invention relates to a kind of respirator, particularly relate to a kind of portable respirator based on the oxygen self-sufficiency.Belong to technical field of medical instruments.
Background technology:
At present, clinical respirator system needs external central air supply system or gas cylinder that oxygen is provided.But central air supply system have can not move, energy consumption crosses high shortcoming, is not suitable for open-air medical procedures.The gas cylinder air feed can arbitrarily move, but because oxygen belongs to explosion hazard gases, adopt the gas cylinder oxygen supply to have inconvenience transportation and the shortcoming of carrying, simultaneously, the oxygen-supplying amount of gas cylinder is very limited, can not satisfy the lasting oxygen supply requirement of respiratory system, particularly in the open air or disaster spot etc. have under the environment of many inconvenient conditions, problem is especially outstanding; The transportation of oxygen is by the restriction of strictness in addition, and therefore, also there is the little defective of the scope of application in the gas cylinder oxygen supply.Defective at central oxygen system and compressed gas cylinder existence, someone adopts the mode of minitype oxygen preparing machine oxygen supply, but the minitype oxygen preparing machine that uses is because its unreasonable structure at present, its pressure that provides generally all below the 0.07Mpa, flow velocity is below 5L/min, its air pressure is low, flow velocity is low, when require as the oxygen source of respirator or anesthetic machine support flow reach 10L/min, moment oxygen gas flow rate to reach 35L/min, when pressure requires 0.19Mpa above, described minitype oxygen preparing machine can not be satisfied the demand.The existing miniature contradiction that how to solve between the two is the difficult point that this problem need solve.Also some oxygen supply equipment exists that bulky (there are instability of flow in 740mm * 332mm * 790mm), weight big (74kg), go out that oxygen is slow, oxygen concentration shows rough, defectives such as noise is big, trivial operations in the use.Therefore, be necessary to research and develop a stable performance, safe and reliable, will break away from existing traditional design mode, the portable high-pressure oxygen generating plant of high integration in mentality of designing.
Summary of the invention:
Purpose of the present invention, be have in order to solve oxygen source machine that respirator of the prior art uses that its air pressure is low, flow velocity is low or volume big, the shortcoming of Heavy Weight, portable performance difference, a kind of portable respirator based on the oxygen self-sufficiency is provided.The oxygen generation system of this device and respiratory system can seamless links, realize the oxygen self-sufficiency; This device can separately be packed simultaneously, and light guiding and supporting has no danger in transportation.
Purpose of the present invention can reach by taking following technical scheme:
Portable respirator based on the oxygen self-sufficiency comprises breathing equipment, and its construction features is: also comprise the self contained oxygen source device that connects with described breathing equipment, be connected to the easy mounted-dismounted type syndeton between described breathing equipment and the oxygen source device;
1) the oxygen source device comprises the housing of being with air intlet, in housing, be provided with the filter, supercharger, cooler, electromagnetic valve, molecular sieve bed, storage oxygen tank and the pressure regulator valve that are communicated with successively by airtight pipeline, filter bits is in the air intlet place of housing, on housing, be provided with oxygen out splice going splice and air out splice going splice, the air inlet of oxygen out splice going splice is communicated with the escape pipe of storage oxygen tank, and the air inlet of air out splice going splice is communicated with the escape pipe of supercharger;
2) in the housing of oxygen source device, be provided with PLC controller and running status display module, one of I/O mouth of PLC controller is connected with the signal I/O end of supercharger, two of the I/O mouth of PLC controller is connected with the signal I/O end of electromagnetic valve, and three of the I/O mouth of PLC controller is connected with one of signal I/O end of running status display module; Two of the signal I/O end of running status display module is connected with the signal I/O end of pressure regulator valve; Constitute the self contained oxygen source device of automatic control structure.
Purpose of the present invention can also reach by taking following technical scheme:
A kind of embodiment of the present invention is: breathing equipment can comprise casing and be arranged on oxygen control module, air control module, sky-oxygen mixer and breathing circuit module in the casing; On casing, be provided with oxygen input adapter, air input adapter; An arrival end of sky-oxygen mixer by the oxygen control module be connected with the gas outlet of oxygen input adapter, its another arrival end is connected by the gas outlet of air control module with the air input adapter, the port of export of sky-oxygen mixer is connected with the breathing circuit module; Oxygen input adapter on the casing of breathing equipment is connected by the oxygen out splice going splice on the housing of outer tube and described oxygen source feedway; Air input adapter on the casing of described breathing equipment is connected by the air out splice going splice on the housing of outer tube and described oxygen source feedway.
A kind of embodiment of the present invention is: can be respectively equipped with airway pressure harmony in the exterior effusion meter in oxygen control module and air control module; In described sky-oxygen mixer, be provided with and detect valve or relief valve.
A kind of embodiment of the present invention is: the breathing circuit module can comprise inlet valve, air-breathing interface, the interface of exhaling, exhale device valve and PEEP valve; Air-breathing interface is connected with the port of export of sky-oxygen mixing device by inlet valve; The expiration interface is connected successively with exhaling device valve, PEEP valve.
A kind of embodiment of the present invention is: can be provided with safety relief valve on the pipeline between supercharger and the cooler; On the pipeline between filter and the supercharger, be provided with intake muffler; Be provided with exhaust silencer on the exhaustor of electromagnetic valve, described electromagnetic valve is a two-position three-way valve.
A kind of embodiment of the present invention is: described molecular sieve bed can be made of the sieve of the granulin molecule more than three or three bucket, is provided with irrigation channel at the place, gas outlet of molecular sieve bed.
A kind of embodiment of the present invention is: can be provided with power module and hypertonia alarm device in the housing of oxygen source device, one of outfan of power module is connected with the power input of supercharger, and two of the outfan of power module is connected with the power input of PLC controller; One of I/O end of hypertonia alarm device is connected with the signal I/O end of supercharger, the I/O end of hypertonia alarm device two with the storage oxygen tank signal I/O end be connected.
A kind of embodiment of the present invention is: can be provided with the handle band on the end face of housing; Air intlet place at housing is provided with drainage screen.
A kind of embodiment of the present invention is: described supercharger can be made of turbo-compressor or air compressor.
Beneficial effect of the present invention:
1, the present invention has broken away from the blowing model that traditional respirator needs bottled oxygen supply or Central oxygen-supply, to make oxygen, gas compression/filtration/purification process miniaturization design, can satisfy the demand of the continuous oxygen supply of single anesthetic machine, be easy to carry, transport even drop, solved the difficult problem of oxygen supply under the open-air mal-condition.
2. the present invention utilizes PLC (programmable logic controller) technology to the design of molecular sieve system of subject, simultaneously the molecular sieve bed more than 3 or 3 is carried out Based Intelligent Control, has optimized adsorption process effectively, and adsorption plant efficient is improved, and cost reduces.The connection periodic duty of a plurality of molecular sieve beds, the process of decompress(ion) and absorption is more thorough, and pressure equalizing is more abundant, and the performance of molecular sieve is brought into play preferably, and producing the oxygen rate also can be higher.Utilize turbocharging technology, broken away from the design concept bulky, that body is heavy, the waste gas inertia impulsive force that it utilizes electromotor to discharge promotes the turbine in the turbine room, turbine drives co-axial impeller again, impeller force feed air makes it supercharging and enters cylinder, when engine speed speeds, the waste gas velocity of discharge and secondary speed also speed synchronously, and impeller just compresses more air and enters cylinder.This research and utilization turbocharger has been carried out the miniaturization processing with air compression function unit, can realize the accurate control of flow simultaneously, makes that whole oxygen supplying apparatus is that volume, weight or noise aspect all significantly reduce, and stable.
3, the present invention can realize the slitless connection between this oxygen source feedway and the breathing equipment, realizes the oxygen self-sufficiency; This device can separately be packed simultaneously, and light guiding and supporting is adapted at war wound rescue, field emergency, burst rescue etc. in emergency circumstances or carry out effective and stable ventilation under the normal condition.The safety relief valve of oxygen source device and hypertonia alarm device can prevent the excessive infringement to pipeline and equipment of pressure.
Description of drawings:
Fig. 1 is the overall structure sketch map of the specific embodiment of the invention.
Fig. 2 is the theory diagram of the breathing equipment of the specific embodiment of the invention.
Fig. 3 a is the front view of the breathing equipment of the specific embodiment of the invention.
Fig. 3 b is the side view of the breathing equipment of the specific embodiment of the invention.
Fig. 3 c is the vertical view of the breathing equipment of the specific embodiment of the invention.
Fig. 4 is the inner air path structural representation of the oxygen source feedway of the specific embodiment of the invention.
Fig. 5 is the theory diagram of the oxygen source feedway of the specific embodiment of the invention.
Fig. 6 a is the front view of the oxygen source feedway of the specific embodiment of the invention.
Fig. 6 b is the vertical view of the oxygen source feedway of the specific embodiment of the invention.
Fig. 6 c is the rearview of the oxygen source feedway of the specific embodiment of the invention.
The specific embodiment:
Specific embodiment 1:
With reference to Fig. 1～Fig. 6 c, present embodiment comprises breathing equipment 1 and oxygen source device 2, is connected to the easy mounted-dismounted type syndeton between described breathing equipment 1 and the oxygen source device 2; Breathing equipment 1 comprises casing 1-1 and is arranged on oxygen control module 1-2, air control module 1-3, sky-oxygen mixer 1-4 and breathing circuit module 1-5 among the casing 1-1; On casing 1-1, be provided with oxygen input adapter 1-6, air input adapter 1-7; The arrival end of sky-oxygen mixer 1-4 by oxygen control module 1-2 be connected with the gas outlet of oxygen input adapter 1-6, its another arrival end passes through air control module 1-3 and is connected with the gas outlet of air input adapter 1-7, the port of export of sky-oxygen mixer 1-4 is connected with breathing circuit module 1-5; Oxygen source device 2 comprises housing 2-1, on housing 2-1, be provided with air intlet, in housing 2-1, be provided with filter 2-2, the supercharger 2-3, cooler 2-4, electromagnetic valve 2-5, molecular sieve bed 2-6, storage oxygen tank 2-7, the pressure regulator valve 2-8 that are communicated with successively by airtight pipeline, filter 2-2 is positioned at the air intlet place, on housing 2-1, be provided with oxygen out splice going splice 2-9, air out splice going splice 2-10, the air inlet of oxygen out splice going splice 2-9 is communicated with the escape pipe of storage oxygen tank 2-7, and the air inlet of air out splice going splice 2-10 is communicated with the escape pipe of supercharger 2-3; Oxygen input adapter 1-6 on the casing 1-1 of breathing equipment 1 is connected by the oxygen out splice going splice 2-9 on the housing 2-1 of outer tube and oxygen source device 2; Air input adapter 1-7 on the casing 1-1 of breathing equipment 1 is connected by the air out splice going splice 2-10 on the housing 2-1 of outer tube and oxygen source feedway 2.
With reference to Fig. 2, Fig. 3 a, Fig. 3 b, Fig. 3 c, be provided with airway pressure gauge 1-8 and effusion meter among the oxygen control module 1-2.Be provided with airway pressure gauge 1-8 and effusion meter among the air control module 1-3.Be provided with among sky-oxygen mixer 1-4 and detect valve or relief valve.Breathing circuit module 1-5 comprises inlet valve 1-51, air-breathing interface 1-52, expiration interface 1-53, exhales device valve 1-54 and PEEP valve 1-55; Air-breathing interface 1-52 is connected with the port of export of sky-oxygen mixing device 1-4 by inlet valve 1-51; Expiration interface 1-53 is connected successively with exhaling device valve 1-54, PEEP valve 1-55.On casing, also be provided with display screen 1-9, fly shuttle 1-10, handrail 1-11.Breathing equipment is whole less relatively, and display screen occupies most of area, and display screen mainly is the demonstration of monitor patients parameter and each ventilating mode.Airway pressure gauge is placed the upper right side, monitors patient respiration pressure in real time, flies shuttle selected pattern or function are confirmed, so that respirator enters the setting duty.Air-breathing interface 1-52 is arranged on the lower right of breathing equipment, directly connects patient breathing circuit.Expiration interface 1-53 comprises outlet valve (PEEP valve 1-55), is arranged on the lower left corner, the convenient connection and replacing.Handrail is arranged on the top, guides and supports comparatively easily in carrying.Air source inlet is provided with two, and air and oxygen are arranged on the position of the machine back side by the below.
With reference to Fig. 4, on the pipeline between supercharger 2-3 and the cooler 2-4, be provided with safety relief valve 2-11.On the pipeline between filter 2-2 and the supercharger 2-3, be provided with intake muffler 2-12; Be provided with exhaust silencer 2-13 on the exhaustor of electromagnetic valve 2-5, described electromagnetic valve 2-5 is a two-position three-way valve.Molecular sieve bed 2-6 is made of the sieve of the granulin molecule more than three or three bucket, is provided with irrigation channel 2-20 at the place, gas outlet of molecular sieve bed 2-6.
With reference to Fig. 5, in housing 2-1, also be provided with power module 2-14, PLC controller 2-15 and running status display module 2-16, one of outfan of power module 2-14 is connected with the power input of supercharger 2-3, and two of the outfan of power module 2-14 is connected with the power input of PLC controller 2-15; One of signal I/O end of PLC controller 2-15 is connected with the signal I/O end of supercharger 2-3, two of the signal I/O end of PLC controller 2-15 is connected with the signal I/O end of electromagnetic valve 2-5, and three of the signal I/O end of PLC controller 2-15 is connected with one of signal I/O end of running status display module 2-16; Two of the signal I/O end of running status display module 2-16 is connected with the signal I/O end of pressure regulator valve 2-8; In housing 2-1, also be provided with hypertonia alarm device 2-17, one of I/O end of hypertonia alarm device 2-17 is connected with the signal I/O end of supercharger 2-3, and two of the I/O end of hypertonia alarm device 2-17 is connected with the signal I/O end of storage oxygen tank 2-7.
With reference to Fig. 6 a, Fig. 6 b, Fig. 6 c, on the end face of housing 1, be provided with handle band 2-18.Air intlet place at housing 2-1 is provided with drainage screen 2-19.Also be provided with display 2-21, alarm 2-22, Pressure gauge 2-23, on and off switch 2-24, function button 2-25, power input socket 2-26 at housing 2-11.
In the present embodiment, described supercharger 2-3 can be made of turbo-compressor, makes oxygen source device 2 become the turbocharging oxygen source device of computer control.Because the turbine increase has the advantage that volume is little, pressure is big, flow velocity is fast, therefore, present embodiment utilizes turbocharging technology, has broken away from the design concept bulky, that body is heavy, and the waste gas inertia impulsive force that it utilizes electromotor to discharge promotes the turbine in the turbine room, turbine drives co-axial impeller again, impeller force feed air makes it supercharging and enters cylinder, when engine speed speeds, the waste gas velocity of discharge and secondary speed also speed synchronously, and impeller just compresses more air and enters cylinder.This research and utilization turbocharger has been carried out the miniaturization processing with air compression function unit, can realize the accurate control of flow simultaneously, makes that whole oxygen supplying apparatus is that volume, weight or noise aspect all significantly reduce, and stable.
Operation principle of the present invention:
The breathing equipment operation principle: the gas circuit of breathing equipment is divided two-way, is respectively oxygen control module and air air control module.The pressure and the flow of control of oxygen control module and monitoring oxygen, the pressure and the flow of air control module control and monitoring air.Both enter into sky-oxygen mixing device and mix, after reaching default requirement, offer patient by inlet valve, air-breathing interface, simultaneously, patient can directly be connected with expiration interface, outlet valve, by the PEEP valve PEEP value and other functions of patient exhales is controlled.During work, the oxygen that the oxygen source feedway provides directly enters air source inlet, and after various ventilating modes were set, when air-breathing, outlet valve cut out, and respirator will be transported to patient with the gas that presets by patient breathing circuit according to instruction; During expiration, patient expired gas directly passes through outlet valve, according to different patients' situation the PEEP level is set, and promptly outlet valve is opened with different situations and changed.Pressure when airway pressure gauge is monitored patient respiration in real time; Various human parameters monitorings and feedback etc. are shown by display screen, in time feed back to the doctor.
The operation principle of oxygen source feedway: turbo-compressor is controlled by the PLC controller, the air that turbo-compressor extracts reaches certain pressure after handling by air filtration module (containing filter and acoustic filter), the back is carried out cooling processing by cooler to the air after compressing, directly enter molecular sieve bed by solenoid control, the oxygen that comes out from molecular sieve directly enters the storage oxygen tank after joining, keep certain capacity and pressure, arrive machine oxygen supply terminal through the pressure regulator valve adjust blood pressure at last.Wherein turbo-compressor and electromagnetic valve are controlled by the programmable logic control technology, carry out oxygen concentration and feedbacks such as pressure, flow are carried out the adjusting of electromagnetic valve and turbocharger according to the running status display module.A safety relief valve is set after turbo-compressor/air compressor machine, and behind the storage oxygen tank hypertonia alarm device is set, feed back, prevent the excessive infringement of pressure pipeline and equipment by the running status display module.These are reported to the police and protector comprises mechanical devices such as relief valve, exhaust silencer.
Specific embodiment 2:
The characteristics of present embodiment are: described supercharger 2-3 can be made of air compressor, makes oxygen source device 2 become the supercharging air oxygen source device of computer control.All the other are with specific embodiment 1.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all belonged to protection scope of the present invention.
Claims (9)
1. based on the portable respirator of oxygen self-sufficiency, comprise breathing equipment (1), it is characterized in that: also comprise the self contained oxygen source device (2) that connects with described breathing equipment (1), be connected to the easy mounted-dismounted type syndeton between described breathing equipment (1) and the oxygen source device (2);
1) oxygen source device (2) comprises the housing (2-1) of being with air intlet, in housing (2-1), be provided with the filter (2-2) that is communicated with successively by airtight pipeline, supercharger (2-3), cooler (2-4), electromagnetic valve (2-5), molecular sieve bed (2-6), storage oxygen tank (2-7) and pressure regulator valve (2-8), filter (2-2) is positioned at the air intlet place of housing (2-1), on housing (2-1), be provided with oxygen out splice going splice (2-9) and air out splice going splice (2-10), the air inlet of oxygen out splice going splice (2-9) is communicated with the escape pipe of storage oxygen tank (2-7), and the air inlet of air out splice going splice (2-10) is communicated with the escape pipe of supercharger (2-3);
2) in the housing (2-1) of oxygen source device (2), be provided with PLC controller (2-15) and running status display module (2-16), one of I/O mouth of PLC controller (2-15) is connected with the signal I/O end of supercharger (2-3), two of the I/O mouth of PLC controller (2-15) is connected with the signal I/O end of electromagnetic valve (2-5), and three of the I/O mouth of PLC controller (2-15) is connected with one of signal I/O end of running status display module (2-16); Two of the signal I/O end of running status display module (2-16) is connected with the signal I/O end of pressure regulator valve (2-8); Constitute the self contained oxygen source device of automatic control structure.
2. the portable respirator based on the oxygen self-sufficiency according to claim 1 is characterized in that: breathing equipment (1) comprises casing (1-1) and is arranged on oxygen control module (1-2), air control module (1-3), sky-oxygen mixer (1-4) and breathing circuit module (1-5) in the casing (1-1); On casing (1-1), be provided with oxygen input adapter (1-6), air input adapter (1-7); An arrival end of sky-oxygen mixer (1-4) by oxygen control module (1-2) be connected with the gas outlet of oxygen input adapter (1-6), its another arrival end passes through air control module (1-3) and is connected with the gas outlet of air input adapter (1-7), the port of export of sky-oxygen mixer (1-4) is connected with breathing circuit module (1-5); Oxygen input adapter (1-6) on the casing (1-1) of breathing equipment (1) is connected by the oxygen out splice going splice (2-9) on the housing (2-1) of outer tube and described oxygen source feedway (2); Air input adapter (1-7) on the casing (1-1) of described breathing equipment (1) is connected by the air out splice going splice (2-10) on the housing (2-1) of outer tube and described oxygen source feedway (2).
3. the portable respirator based on the oxygen self-sufficiency according to claim 2 is characterized in that: be respectively equipped with airway pressure gauge (1-8) and effusion meter in oxygen control module (1-2) and air control module (1-3); In described sky-oxygen mixer (1-4), be provided with and detect valve or relief valve.
4. the portable respirator based on the oxygen self-sufficiency according to claim 2 is characterized in that: breathing circuit module (1-5) comprises inlet valve (1-51), air-breathing interface (1-52), expiration interface (1-53), exhales device valve (1-54) and PEEP valve (1-55); Air-breathing interface (1-52) is connected with the port of export of sky-oxygen mixing device (1-4) by inlet valve (1-51); Expiration interface (1-53) is connected successively with exhaling device valve (1-54), PEEP valve (1-55).
5. the portable respirator based on the oxygen self-sufficiency according to claim 1 and 2 is characterized in that: be provided with safety relief valve (2-11) on the pipeline between supercharger (2-3) and the cooler (2-4); On the pipeline between filter (2-2) and the supercharger (2-3), be provided with intake muffler (2-12); Be provided with exhaust silencer (2-13) on the exhaustor of electromagnetic valve (2-5), described electromagnetic valve (2-5) is a two-position three-way valve.
6. the portable respirator based on the oxygen self-sufficiency according to claim 1 and 2, it is characterized in that: described molecular sieve bed (2-6) is made of the sieve of the granulin molecule more than three or three bucket, is provided with irrigation channel (2-20) at the place, gas outlet of molecular sieve bed (2-6).
7. the portable respirator based on the oxygen self-sufficiency according to claim 1 and 2, it is characterized in that: in the housing (2-1) of oxygen source device (2), be provided with power module (2-14) and hypertonia alarm device (2-17), one of outfan of power module (2-14) is connected with the power input of supercharger (2-3), and two of the outfan of power module (2-14) is connected with the power input of PLC controller (2-15); One of I/O end of hypertonia alarm device (2-17) is connected with the signal I/O end of supercharger (2-3), the I/O end of hypertonia alarm device (2-17) two with the storage oxygen tank (2-7) signal I/O end be connected.
8. the portable respirator based on the oxygen self-sufficiency according to claim 1 and 2 is characterized in that: be provided with handle band (2-18) on the end face of housing (2-1); Be provided with drainage screen (2-19) at the air intlet place of housing (2-1).
9. the portable respirator based on the oxygen self-sufficiency according to claim 1 and 2 is characterized in that: described supercharger (2-3) is made of turbo-compressor or air compressor.
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| CN103721332A (en) * | 2013-12-13 | 2014-04-16 | 科迈（常州）电子有限公司 | Highland breathing machine |
| CN104645471A (en) * | 2015-02-13 | 2015-05-27 | 齐倩 | Non-invasive continuous positive airway pressure breathing machine for children |
| CN112023209A (en) * | 2020-09-03 | 2020-12-04 | 合肥康居人智能科技有限公司 | Oxygen generation and respiration all-in-one machine capable of intelligently adjusting voice flow |
| CN112733643A (en) * | 2020-12-30 | 2021-04-30 | 青岛精安医疗科技有限责任公司 | Oxygen supply control method and device based on triaxial acceleration sensor and storage medium |
| CN112933352A (en) * | 2021-01-18 | 2021-06-11 | 袁航 | Respirator with automatic oxygen generation function |
| CN113195024A (en) * | 2018-12-29 | 2021-07-30 | 青岛精安医疗科技有限责任公司 | Oxygen generation system and method |
| CN113558895A (en) * | 2021-08-13 | 2021-10-29 | 广东省迅怡净化科技有限公司 | Bed capable of improving sleep quality |
| US11925765B2 (en) | 2020-04-07 | 2024-03-12 | Koninklijke Philips N.V. | Systems and methods for providing controlled supplemental oxygen via any ventilator |
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Application publication date: 20110713 |