CN109767679A - A kind of breathing apparatus - Google Patents
A kind of breathing apparatus Download PDFInfo
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- CN109767679A CN109767679A CN201910031804.0A CN201910031804A CN109767679A CN 109767679 A CN109767679 A CN 109767679A CN 201910031804 A CN201910031804 A CN 201910031804A CN 109767679 A CN109767679 A CN 109767679A
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- air bag
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- exhalation
- breathing
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Abstract
The invention discloses a kind of breathing apparatuses, including respirator, sucking air bag, exhalation air bag and gas source module；The respirator includes breathing mouth and the airflow line for being contained in experimental subjects oral cavity, the breathing mouth is connected to the front end of the airflow line, the rear end of the airflow line separates two branches of air intake passage and exhalation passages, is separately installed with check valve in the air intake passage and the exhalation passages；The sucking air bag is equipped with air inlet, gas outlet and exhaust outlet, and the air intake passage is connected to the gas outlet of the sucking air bag, and the air inlet of the sucking air bag is connected to the gas source module；The exhalation air bag is equipped with air inlet and exhaust outlet；The gas source module provides gas for the sucking air bag；The sucking air bag and the exhalation air bag are that flexible material is made.When being breathed with this breathing apparatus, exhaled gas is separated with sucking gas, and the correctness for the experiment simulation that ensures respiration improves the value of result of study.
Description
Technical field
The present invention relates to a kind of breathing apparatuses, belong to medicine and pharmacology experimental provision field.
Background technique
Influence of the high altitude anoxia condition involved in medical domain to people, the dynamic health and growth characteristics planted is studied, and pharmacy
Field is related to influence of the different atmospheric environments to drug absorption to influence the research of therapeutic effect.In addition, in space flight, space
It stands, be also required to study influence of the different gaseous environments to human health in terms of the projects such as personnel safeties such as submarine.These researchs
It is the hot spot of domain expert concern, the foundation of relevant experimental situation is the key that study.There is presently no about special
The special device for carrying out coherent detection of influence of the gaseous environment to human health, device used are all scraped together
Scattered combination of devices.For example, existing respirator is only similar to the single pass suction-type respirator of diving, do not breathe out
The individual channel of gas, though connect gas source through certain reduced pressure treatment, but has certain pressure, with guarantor in water
Oral cavity is flowed to when lower air-breathing under pressure, user will not can arduously be drawn onto very much oxygen.And without examining when exhaling
Consider influence of the gas of exhalation to sucking gas concentration, it directly can into external environment by gas exhalation.Medicine and medicine
Respiration test in field and such situation have a stringent difference: the concentration of analog of the gas of sucking be environment gas
Component requires the gas component concentrations of sucking not generate change because of the doping of the gas of exhalation during the experiment, and inhales
Enter and what the movement that breathes out was simulated completely is general breathing state, cannot allow and additionally pay physical strength when exhalation and sucking gas, this
Sample can just guarantee that the correctness of experiment simulation, result of study are just valuable.Existing respirator is difficult to meet these requirements, makes to grind
The reliability of the accuracy and result studied carefully is under suspicion.For the influence that detection special gas component generates human body, often need
Vital sign parameters, the experimental provisions used such as the blood oxygen concentration of instrument quantitative detection human body with similar MR class occupy larger
Detection space.
Summary of the invention
It is an object of the invention to provide a kind of breathing apparatus in place of overcome the deficiencies in the prior art.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of breathing apparatus, including respirator, sucking air bag, exhalation air bag and gas source module；The respirator packet
Breathing mouth and the airflow line for being contained in experimental subjects oral cavity are included, the breathing mouth is connected to the front end of the airflow line,
The rear end of the airflow line separates two branches of air intake passage and exhalation passages, in the air intake passage and the exhalation passages
It is separately installed with check valve；The sucking air bag is equipped with air inlet, gas outlet and exhaust outlet, the air intake passage and the sucking
The gas outlet of air bag is connected to, and the air inlet of the sucking air bag is connected to the gas source module；The exhalation air bag is equipped with air inlet
And exhaust outlet, the exhalation passages are connected to the air inlet of the exhalation air bag；The gas source module provides for the sucking air bag
Gas；When air-breathing, closed check valve in the exhalation passages, gas successively pass through the incoming call air bag, the air intake passage,
The airflow line reaches the breathing mouth, and when expiration, closed check valve in the air intake passage, gas successively passes through described
It breathes mouth, the airflow line, the exhalation passages and reaches the exhalation air bag；The sucking air bag and the exhalation air bag are equal
It is made of flexible material.
Preferably, the exhaust outlet of the exhaust outlet of the sucking air bag and the exhalation air bag is equipped with check valve, the suction
Enter on air bag and be mounted on baroceptor on the exhalation air bag, the baroceptor monitors the sucking air bag and institute
Signal is issued after stating expiratory air capsule internal and external pressure difference, controls the switch state of the check valve.
Preferably, it is all connected with and takes outside the check valve of the exhaust outlet of the exhaust outlet of the sucking air bag and the exhalation air bag
Sample pipe.
Preferably, the gas source module includes several gas cylinders, flow control valve, gas flowmeter and gas mixer, institute
The flow control valve is installed in the outlet for stating gas cylinder, and the gas cylinder output gas is by the gas flowmeter later in the gas
It is mixed in body mixer, the outlet of the gas mixer is connected with the air inlet of the sucking air bag.
Preferably, the flow control valve outlet and the gas flowmeter are threadedly coupled.
Preferably, the tie point of the airflow line, the air intake passage and the exhalation passages three is equipped with rotation
Device, the air intake passage and exhalation passages can be rotated.
Preferably, the breathing mouth is threadedly coupled with the airflow line.
Preferably, flexible nasal obstruction is installed on the breathing mouth.
Preferably, the check valve includes a hollow valve casing, and it is circumferential convex that the inner wall of the valve casing front is equipped with a circle
Edge, the inner wall in the middle part of the valve casing are equipped with one and enclose circumferential baffle ring, further include the valve in a hollow cavity for being applied in the valve casing
Core, the length of the spool be greater than the front end face of the peripheral flange to the circumferential direction baffle ring rear end face distance, the valve
Gasket is arranged in the front end of core, and the rear end of the spool is arranged baffle, venthole is arranged on the baffle；When air-flow is blown from rear end
When forward end, air-flow blows to the gasket by the venthole, gasket stress end movement forward, the gasket
Gap is formed with the peripheral flange, air-flow passes through from the gap, and it is anti-that the rear end face of the circumferential direction baffle ring blocks the baffle
Only the spool is blown away；When air-flow blows to rear end from front end, air-flow blows the gasket, the gasket stress patch
It pays on the peripheral flange front end face, air-flow is blocked.
Preferably, the gasket and the circumferential baffle are that silica gel material is made.
The technical program compared with the background art, it has the following advantages:
1. the respirator is equipped with breathing mouth, airflow line, air intake passage and exhalation passages, the air intake passage and described
It is separately installed with check valve in exhalation passages, when air-breathing, closed check valve in the exhalation passages, gas successively passes through described
Incoming call air bag, the air intake passage, the airflow line reach the breathing mouth, unidirectional in the air intake passage when expiration
Valve is closed, and gas successively reaches the exhalation air bag, breathing by the breathing mouth, the airflow line, the exhalation passages
When, exhaled gas separate with sucking gas, to guarantee sucking gas componant during the experiment and components of exhaled breath mutually not shadow
It rings, the correctness for the experiment simulation that ensures respiration improves the value of result of study.
2. the sucking air bag and exhalation air bag are that flexible material is made, can be stretched according to the big freedom in minor affairs of ambient pressure environment
Contracting volume, it can be ensured that with external environment without pressure difference, realize nature exhalation and air-breathing, to simulate human body in general breathing state, into
One step, which ensures respiration, tests the correctness of simulation, improves the value of result of study.
3. being mounted on baroceptor on the sucking air bag and on the exhalation air bag, the baroceptor monitoring
Signal is issued after the sucking air bag and the expiratory air capsule internal and external pressure difference, the switch state of the check valve is controlled, into one
Guarantee to step the sucking air bag and breathe out the pressure of inside air bag and the external world there is no pressure difference, realizes nature exhalation and air-breathing, with
Human body is simulated in general breathing state, the correctness of respiration test simulation is further ensured that, improves the value of result of study.
4. the breathing mouth is connected through a screw thread with the airflow line, the breathing mouth is conveniently replaced, can be to multiple
Experimental subjects is detected, and detection efficiency is high.
5. the tie point of the airflow line, the air intake passage and the exhalation passages three is equipped with adjusting knob,
The air intake passage and exhalation passages can be rotated around the adjusting knob, the phase between plane where three channels of respirator
To position-adjustable, it is suitable for requirement of the instrument to space in experiment.
It is flexible material, institute 6. the gasket of the check valve and the circumferential baffle are that silica gel material is made
Check valve is stated in one-way ventilating, only needs gas flowing that can open, is not required to additional cracking pressure, use is very convenient.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the overall schematic of breathing apparatus of the invention.
Fig. 2 is the structural schematic diagram of the respirator of breathing apparatus of the invention.
Fig. 3 is the structural schematic diagram of the sucking air bag of breathing apparatus of the invention.
Fig. 4 is the structural schematic diagram of the exhalation air bag of breathing apparatus of the invention.
Fig. 5 is the structural schematic diagram of the gas source module of breathing apparatus of the invention.
Fig. 6 is the structural schematic diagram of the check valve of breathing apparatus of the invention, and direction shown in arrow is air-flow in figure
Aspect is the location drawing of the spool when check valve is opened shown in dotted line.
Fig. 7 is the structural schematic diagram of the rotating device of breathing apparatus of the invention.
Appended drawing reference: respirator 1 breathes mouth 11, airflow line 12, air intake passage 13, exhalation passages 14, rotating device
15, adjusting knob 151, connecting rod 152, spool 153, rotatable stator 154, rotor 155, flexibility nasal obstruction 16, sucking air bag
2, exhalation air bag 3, gas source module 4, gas cylinder 41, flow control valve 42, gas flowmeter 43, gas mixer 44, check valve 5,
Valve casing 51, peripheral flange 52, circumferential baffle ring 53, spool 54, gasket 55, baffle 56, venthole 57, probe tube 6, air pressure sensing
Device 7.
Specific embodiment
The contents of the present invention are illustrated below by embodiment:
A kind of breathing apparatus, including respirator 1, sucking air bag 2, exhalation air bag 3 and gas source module 4.The breathing
Device 1 includes the breathing mouth 11 and airflow line 12 for being contained in experimental subjects oral cavity, and the breathing mouth 11 is connected to the air-flow
The front end of pipeline 12, the rear end of the airflow line 12 separate 14 two branches of air intake passage 13 and exhalation passages, the air-breathing
Check valve 5 is separately installed in channel 13 and the exhalation passages 14.The sucking air bag 2 is equipped with air inlet, gas outlet and row
Port, the air intake passage 13 are connected to the gas outlet of the sucking air bag 2, described in the air inlet connection of the sucking air bag 2
Gas source module 3.The exhalation air bag 3 be equipped with air inlet and exhaust outlet, the exhalation passages 14 be connected to it is described exhalation air bag 3 into
Port.The gas source module 4 is that the sucking air bag 2 provides gas.When air-breathing, the check valve 5 in the exhalation passages 14 is closed
It closes, gas successively reaches the breathing mouth 11 by the incoming call air bag 2, the air intake passage 13, the airflow line 12, real
It tests object and sucks the breathing mouth 11, gas enters the lung of experimental subjects.Check valve when expiration, in the air intake passage 13
It closes, the gas breathed out from experimental subjects lung successively passes through the breathing mouth 11, the airflow line 12, the exhalation passages
14 reach the exhalation air bag 3.When breathing, exhaled gas is separated with sucking gas, to guarantee to suck gas during the experiment
Ingredient and components of exhaled breath are independent of each other, and the correctness for the experiment simulation that ensures respiration improves the value of result of study.
The sucking air bag 2 and the exhalation air bag 3 are that flexible material is made, can be according to ambient pressure environment size certainly
By volume of stretching, it can be ensured that with external environment without pressure difference, nature exhalation and air-breathing are realized, to simulate human body in general breathing shape
State is further ensured that the correctness of respiration test simulation, improves the value of result of study.
The exhaust outlet of the exhaust outlet of the sucking air bag 2 and the exhalation air bag 3 is equipped with check valve 5, the sucking gas
On capsule 2 and it is mounted on baroceptor 7 on the exhalation air bag 3, the baroceptor 7 monitors 2 He of sucking air bag
Signal is issued after 3 internal and external pressure difference of exhalation air bag, controls the switch state of the check valve 5.When 2 He of sucking air bag
When air pressure in the exhalation air bag 3 is greater than ambient pressure, the check valve 5 opens exhaust, which can cooperate flexible material
The sucking air bag 2 and the exhalation air bag 3 made of matter ensure that with external environment, realization nature breathes out and air-breathing without pressure difference,
To simulate human body in general breathing state, it is further ensured that the correctness of respiration test simulation, improves the value of result of study.
The gas source module 4 includes several gas cylinders 41, flow control valve 42, gas flowmeter 43 and gas mixer 44,
The flow control valve 42 is installed in the outlet of the gas cylinder 41,41 output gas of gas cylinder by the gas flowmeter 43 it
It is mixed in the gas mixer 44 afterwards, the air inlet phase of the outlet of the gas mixer 44 and the sucking air bag 2
Connection.Contained gaseous species can realize that the proportion of various gases can by changing the different gas cylinders 41 in mixed gas
To be controlled by adjusting each flow control valve 42.Described in the baroceptor 7 can also be controlled according to magnitude of pressure differential
The switch of flow control valve 42.
Probe tube is all connected with outside the check valve 5 of the exhaust outlet of the exhaust outlet of the sucking air bag 2 and the exhalation air bag 3
6, can just from it is described sucking air bag 2 exhaust outlet check valve 5 probe tube 6 to be punched into it is described sucking air bag 2 mixing
Gas is sampled, and carries out the secondary standard for verifying whether to meet detection gas to mixed gas.
The outlet of flow control valve 42 and the gas flowmeter 43 are threadedly coupled, and replace the gas cylinder 41 and the stream
Adjustable valve 42 is very convenient, can carry out respiration test detection to different gas.
The tie point of 14 three of the airflow line 12, the air intake passage 13 and the exhalation passages is equipped with rotation dress
15 are set, the air intake passage 13 and exhalation passages 14 can be rotated.The phase between plane where three channels of the respirator 1
To position-adjustable, it is suitable for requirement of the instrument to space in experiment.
The rotating device 15 includes adjusting knob 151, connecting rod 152, spool 153, rotatable stator 154 and two rotations
Rotor 155.The spool 153 is the circular cylindrical cavity of sealing, and cavity, the rotor 155 is arranged in the rotor 155
It is nested on the circular cylindrical cavity outer wall and makes the cavity of rotor 155 and the cylindrical body body cavity body of the spool 153
It communicates, the air intake passage 13 and the exhalation passages 14 are fixedly connected with two rotors 155 respectively and turn with rotation
The cavity of son communicates.Sealant is arranged with 153 junction of spool in the rotor 155, prevents gas leakage.The airflow line 12
It is fixedly connected with the rotatable stator 154 and is communicated with the spool.One end of the connecting rod 152 is fixedly connected on the rotation
It walks around on son 155, the other end is fixedly connected with the adjusting knob 151.When rotating the adjusting knob 151, the adjusting rotation
Button 151 drives the connecting rod 152 to rotate, and connecting rod 152 drives rotor 155 to rotate, in turn, the rotor 155
The air intake passage 13 and the exhalation passages 14 is driven to rotate.It the airflow line 12, the air intake passage 13 and described exhales
It the relative position in gas channel 14 can be according to the big minor adjustment of lab space.
The breathing mouth 11 is threadedly coupled with the airflow line 12.The breathing mouth 11 is conveniently replaced, to different
Experimental subjects uses different breathing mouths 11, can detect to multiple experimental subjects, and detection efficiency is high.
Flexible nasal obstruction 16 is installed on the breathing mouth 11, flexible 16 plug of nasal obstruction can be used when carrying out respiration test
The firmly nose of experimental subjects prevents experimental subjects respiratory nasal, guarantees that experimental subjects is only breathed with mouth, guarantees experiment
Consistency and preciseness.
The check valve 5 includes a hollow valve casing 51, and the inner wall of 51 front of valve casing is equipped with a circle peripheral flange
52, the inner wall at 51 middle part of the valve casing is equipped with one and encloses circumferential baffle ring 53, further includes one being applied in the hollow cavity of the valve casing
Spool 54, the length of the spool 54 is greater than the front end face of the peripheral flange 52 to the rear end face of the circumferential direction baffle ring 53
Gasket 55 is arranged in distance, the front end of the spool 54, and the rear end of the spool 54 is arranged baffle 56, is arranged on the baffle 56
Venthole 57.When air-flow blows to front end from rear end, air-flow blows to the gasket 55, the sealing by the venthole 57
55 stress end movement forward is padded, the gasket 55 and the peripheral flange 52 form gap, and air-flow passes through from the gap, institute
The rear end face for stating circumferential baffle ring 53, which blocks the baffle 56, prevents the spool 54 to be blown away.When air-flow blows to rear end from front end
When, air-flow blows the gasket 55, and 55 stress of gasket attaches on the front end face of the peripheral flange 52, air-flow
It is blocked.The check valve 5, which can be, realizes unidirectionally controlled air-flow.
The gasket 55 and the circumferential baffle 56 are that silica gel material is made, and are flexible material, the check valve exists
When one-way ventilating, only needs gas flowing that can open, be not required to additional cracking pressure, use is very convenient.
The live application method of breathing equipment of the invention is as follows:
Different types of gas cylinder 41 is installed according to requirement of experiment, opens the gas cylinder 41, adjusts the flow and adjusts
Valve 42 adjusts the mixed proportion of the gas into the sucking air bag 2, from the check valve 5 of the gas vent of the sucking air bag 2
Probe tube 6 sample, the gas further verified in the sucking air bag 2 meets the requirement of experiment；According to experimental subjects, experiment
Object can be different people or different animals, and the suitable breathing mouth 11 is selected to be mounted on the airflow line 12,
Experimental subjects will breathe mouth 11 containing in the oral cavity, and the flexible nasal obstruction 16 is filled in the nasal cavity of experimental subjects, experiment pair is prevented
As with respiratory nasal, experimental subjects is carried out after repeatedly breathing, the gas of exhalation enters the exhalation air bag 3, from the expiratory air
The probe tube 6 of the exhaust outlet of capsule 3 samples, and carries out gas detection.Pacify respectively in the air intake passage 13 and the exhalation passages 14
Equipped with check valve 5, when breathing, exhaled gas separate with sucking gas, to guarantee to suck gas componant during the experiment and exhale
Gas constituents are independent of each other, meanwhile, the sucking air bag 2 and the exhalation air bag 3 are that flexible material is made, can be according to outer
Boundary's environmental pressure size free extension volume, it can be ensured that with external environment without pressure difference, nature exhalation and air-breathing are realized, to simulate people
Body improves the value of result of study in general breathing state, the correctness for the experiment simulation that ensures respiration.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (10)
1. a kind of breathing apparatus, it is characterised in that: including respirator, sucking air bag, exhalation air bag and gas source module；It is described
Respirator includes breathing mouth and the airflow line for being contained in experimental subjects oral cavity, and the breathing mouth is connected to the airflow line
Front end, the rear end of the airflow line separates two branches of air intake passage and exhalation passages, the air intake passage and described exhales
Gas is separately installed with check valve in channel；The sucking air bag be equipped with air inlet, gas outlet and exhaust outlet, the air intake passage with
The air inlet of the gas outlet connection of the sucking air bag, the sucking air bag is connected to the gas source module；The exhalation air bag is set
There are air inlet and exhaust outlet, the exhalation passages are connected to the air inlet of the exhalation air bag；The gas source module is the sucking
Air bag provides gas；When air-breathing, closed check valve in the exhalation passages, gas successively passes through the incoming call air bag, described
Air intake passage, the airflow line reach the breathing mouth, when expiration, closed check valve in the air intake passage, gas according to
It is secondary to reach the exhalation air bag by the breathing mouth, the airflow line, the exhalation passages；The sucking air bag and described
Breathing out air bag is that flexible material is made.
2. breathing apparatus according to claim 1, it is characterised in that: the exhaust outlet of the sucking air bag and described exhale
The exhaust outlet of air bag is equipped with check valve out, is mounted on baroceptor on the sucking air bag and on the exhalation air bag,
The baroceptor issues signal after monitoring the sucking air bag and the expiratory air capsule internal and external pressure difference, controls described unidirectional
The switch state of valve.
3. breathing apparatus according to claim 2, it is characterised in that: the exhaust outlet of the sucking air bag and described exhale
Probe tube is all connected with outside the check valve of the exhaust outlet of air bag out.
4. breathing apparatus according to claim 1, it is characterised in that: the gas source module includes several gas cylinders, stream
The flow control valve, the gas cylinder output are installed in adjustable valve, gas flowmeter and gas mixer, the outlet of the gas cylinder
Gas by being mixed in the gas mixer after the gas flowmeter, the outlet of the gas mixer with it is described
The air inlet of sucking air bag is connected.
5. breathing apparatus according to claim 4, it is characterised in that: the flow control valve outlet and the gas
Flowmeter is threadedly coupled.
6. breathing apparatus according to claim 1, it is characterised in that: the airflow line, the air intake passage and
The tie point of the exhalation passages three is equipped with rotating device, and the air intake passage and exhalation passages can be rotated.
7. breathing apparatus according to claim 1, it is characterised in that: the breathing mouth and the airflow line screw thread
Connection.
8. breathing apparatus according to claim 1, it is characterised in that: install flexible nasal obstruction on the breathing mouth.
9. breathing apparatus according to claim 2, it is characterised in that: the check valve includes a hollow valve casing,
The inner wall of the valve casing front is equipped with a circle peripheral flange, and the inner wall in the middle part of the valve casing is equipped with one and encloses circumferential baffle ring, also
The spool being applied in the hollow cavity of the valve casing including one, the front end face that the length of the spool is greater than the peripheral flange arrive
Gasket is arranged in the distance of the rear end face of the circumferential direction baffle ring, the front end of the spool, and baffle, institute is arranged in the rear end of the spool
It states and venthole is set on baffle；When air-flow blows to front end from rear end, air-flow blows to the gasket, institute by the venthole
Gasket stress end movement forward is stated, the gasket and the peripheral flange form gap, and air-flow passes through from the gap, institute
The rear end face for stating circumferential baffle ring, which blocks the baffle, prevents the spool to be blown away；When air-flow blows to rear end from front end, air-flow
The gasket is blown, the gasket stress attaches on the front end face of the peripheral flange, and air-flow is blocked.
10. breathing apparatus according to claim 9, it is characterised in that: the gasket and the circumferential baffle are equal
It is made of silica gel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031804.0A CN109767679B (en) | 2019-01-14 | 2019-01-14 | Breath experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031804.0A CN109767679B (en) | 2019-01-14 | 2019-01-14 | Breath experimental device |
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| CN109767679A true CN109767679A (en) | 2019-05-17 |
| CN109767679B CN109767679B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910031804.0A Expired - Fee Related CN109767679B (en) | 2019-01-14 | 2019-01-14 | Breath experimental device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110811577A (en) * | 2019-11-18 | 2020-02-21 | 长春大学 | Human respiratory system's analogue means |
| CN111420201A (en) * | 2020-04-20 | 2020-07-17 | 中国医学科学院生物医学工程研究所 | Respirator and control method of respirator |
| CN113029906A (en) * | 2021-03-15 | 2021-06-25 | 华东师范大学 | Human body exhalation simulation device |
| CN114495670A (en) * | 2022-02-18 | 2022-05-13 | 山东大学 | Human body breathing simulation device and simulation method |
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| CN110811577A (en) * | 2019-11-18 | 2020-02-21 | 长春大学 | Human respiratory system's analogue means |
| CN110811577B (en) * | 2019-11-18 | 2022-08-09 | 长春大学 | Human respiratory system's analogue means |
| CN111420201A (en) * | 2020-04-20 | 2020-07-17 | 中国医学科学院生物医学工程研究所 | Respirator and control method of respirator |
| CN113029906A (en) * | 2021-03-15 | 2021-06-25 | 华东师范大学 | Human body exhalation simulation device |
| CN114495670A (en) * | 2022-02-18 | 2022-05-13 | 山东大学 | Human body breathing simulation device and simulation method |
| CN114495670B (en) * | 2022-02-18 | 2023-04-11 | 山东大学 | Human body breathing simulation device and simulation method |
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