CN106492322A - A kind of lung ventilator - Google Patents
A kind of lung ventilator Download PDFInfo
- Publication number
- CN106492322A CN106492322A CN201611042012.6A CN201611042012A CN106492322A CN 106492322 A CN106492322 A CN 106492322A CN 201611042012 A CN201611042012 A CN 201611042012A CN 106492322 A CN106492322 A CN 106492322A
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- CN
- China
- Prior art keywords
- expectoration
- lung ventilator
- turbofan
- breathing
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/202—Controlled valves electrically actuated
- A61M16/203—Proportional
-
- 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
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The lung ventilator of the present invention includes：Suction line, is provided with turbofan, air-breathing expectoration two four-way switching valves, surge tanks；Expiration pipeline, is provided with outlet valve, and the outlet valve is controlled it by the compressed gas received from the surge tank by a two-position three-way valve；Expectoration pipeline, is provided with fast gate valve, two four-way switching valves of the air-breathing expectoration, the turbofan, and wherein suction line and expectoration pipeline shares two four-way switching valves of the air-breathing expectoration, the turbofan.Also include central processing unit, the data according to the sensor detection in lung ventilator carry out Collaborative Control to lung ventilator each several part.The lung ventilator allows expectoration machine to be embedded in lung ventilator as module, thus makes lung ventilator that there is higher accuracy, response and security.Controlled using same central processing unit, make the breathing and expectoration work of lung ventilator reach real synchronization.Suction line and expectoration pipeline local share same pneumatic circuit, make the structure of lung ventilator simpler, compact.
Description
Technical field
The present invention relates to medical instruments field, more particularly, to a kind of lung ventilator.
Background technology
Lung ventilator can substitute or aid in the Medical Devices that patient completes mechanical ventilation as a kind of, clinically universal
Application.For the patient of lung ventilator on those, under normal circumstances can not voluntarily expectoration.If sputum, phlegm scab are in respiratory tract
Pile up, the unobstructed and effective ventilation of respiratory tract can be directly affected, patient respiratory is rapid, blood oxygen concentration declines so as to cause, seriously
Cause respiratory failure, atelectasis.Sputum is also the hotbed of bacterium simultaneously, is likely to result in patient breathing system infection, increases disease
Feelings.Therefore, in time and effectively remove sputum to be very important, regular suction sputum has become clinic to lung ventilator patient care
One of core work.Conventional mode is sputum aspirator tube suction sputum, but the suction sputum mode of this intrusive mood, due to the negative pressure of local
Very high, add the insertion and movement of conduit, it is easy to air flue is damaged or air flue scar, meanwhile, the machine of patient can be interrupted
Tool is ventilated, and in addition the removing of sputum is nor very thorough.
Patent WO2007054829 proposes a kind of and lung ventilator associated working first, and auxiliary patient respiration, cough are removed
The expectoration system of patient airway secretion, need not interrupt the eupnea of patient during patient's expectoration, can be according to default expectoration
Time and expectoration number of times carry out expectoration to patient, can at any time, instant expectoration.Patent CN 201510657436.2 is then further
The patent is enriched, improve the security of the expectoration system, clinical adaptability, it is to avoid lung ventilator when expectoration machine works
The problems such as warning, the phlegm of expectoration machine expectoration, are collected in a collection phlegm container, then in periodically being configured by hospital by nurse
Sputum is siphoned away by heart vacuum suction system.
In two patents listed above, the triggering expectoration of expectoration machine be by system in pressure or flow sensor come
Judge that the process of mechanical ventilation implemented by lung ventilator to patient, that is to say, that lung ventilator and expectoration machine are not communicated, expectoration machine
Simply passively by the pressure signal of detection lung ventilator gas circuit, then carry out processing, analyzing the information for obtaining breathing process, but this
Following five problems would generally be brought：
1st, accuracy and response quickly of system：It is two different machines after all, it is impossible to accomplish that lung ventilator is worked with expectoration machine
True synchronization.The breathing process pressure signal that lung ventilator is detected in the pressure or flow sensor of expectoration system is converted into electricity
After signal, this signal after transmission, amplification, filtration, A/D conversions, then will transfer to message handler to process, and judge, send
Instruction, then drives valve or blower fan work through D/A conversions, power amplification, drivable DC voltage again.This can be in control
There is a certain degree of time lag in system, affect expectoration effect.
2nd, security：Various environmental conditions are limited by, the detection for breathing process may bring the result of mistake, easily make
Into erroneous judgement, breathing pipeline interior condition is very complicated, the water of gaseous vapor and liquid, or even the phlegm of patient's expectoration, and having can
Each corner of breathing pipeline can be distributed in, these factors can directly affect the essence of the testing result of pressure or flow sensor
Degree, the even result of mistake.So as to cause potential safety hazard.
3rd, two blower fans are adopted, and pipeline connection is complicated, and the volume that takes up room is big, and high cost, trouble point, leakage point are more.
Content of the invention
For the problems referred to above, the present invention proposes a kind of lung ventilator, and the lung ventilator has higher accuracy, response
And security.
The lung ventilator of the present invention, including：Suction line, which is provided with turbofan, two four-way switching valves of air-breathing expectoration,
Surge tank；Expiration pipeline, which is provided with outlet valve, and the outlet valve is by a two-position three-way valve by receiving from the buffering
The compressed gas of tank are controlled it；Expectoration pipeline, which is provided with fast gate valve, two four-way switching valves of the air-breathing expectoration,
The turbofan.Wherein suction line and expectoration pipeline share two four-way switching valves of the air-breathing expectoration, the turbine wind
Machine.
The lung ventilator of the present invention, its advantage is, expectoration machine is embedded in lung ventilator as module, thus
Make lung ventilator that there is higher accuracy, response and security.
Controlled using same central processing unit, simplify system composition, and same central processing unit is carried out to each several part
Collaborative Control, makes the breathing and expectoration work of lung ventilator reach real synchronization.
Same central processing unit can be carried out at integration to the information received from multiple parts such as sensor, valve and blower fan
Reason, reduces time lag to a certain extent, improves accuracy and the fast-response of system, improve expectoration effect.
Further, suction line and expectoration pipeline local share same pneumatic circuit, reduce inside breathing pipeline
The complexity of condition, therefore breathing supply can be using same turbofan, same flow sensor with expectoration suction
And pressure sensor, weight and the cost of the lung ventilator is reduced, the portability of the lung ventilator is improved, the structure of lung ventilator is made
Simpler, compact.
Description of the drawings
Gas circuit structure block diagrams of the Fig. 1 for one embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described with reference to the accompanying drawings, wherein identical part is presented with like reference characters.
The lung ventilator with expectoration function of the present invention includes suction line, expiration pipeline, expectoration pipeline；
Air-in that suction line includes being sequentially connected, air cleaner, empty oxygen blending tank, air-breathing expectoration two four
Direction changeover valve, turbofan, pressure sensor, flow sensor, surge tank, the first check valve, oxygen concentration sensor.Air-breathing
Pipeline also has an oxygen input port, is directly connected with empty oxygen blending tank.Turbofan and a suction control valve (ratio pressure
Regulating valve or proportional directional valve) in parallel, it is adjusted with the output pressure and flow to turbofan.
Expiration pipeline includes outlet valve, and outlet valve is by a two-position three-way valve by receiving the compressed gas from surge tank
Control it.
Expectoration pipeline is included by being input to the fast gate valve, the second check valve, flow sensor, pressure that output end is sequentially connected
Sensor, two four-way switching valves of air-breathing expectoration, turbofan, empty oxygen blending tank, air cleaner.Which neutralizes suction line altogether
Part include flow sensor, pressure sensor, two four-way switching valves of air-breathing expectoration, turbofan, empty oxygen blending tank,
Air cleaner.
The delivery outlet of suction line is pooled together with the input port of expiration pipeline, expectoration pipeline, is connected with patient.
As shown in figure 1, its course of work is as follows：When mechanical ventilation is carried out to patient 112, surrounding air is through filter
101 enter empty oxygen blending tank 103, and empty oxygen blending tank 103 is configured with oxygen input port, and low pressure or high pressure are adjusted through decompression, flow
The oxygen of section enters empty oxygen blending tank 103 (due to belonging to routine techniques, the present invention is not shown) by oxygen input port, then passes through
One path (Fig. 1 current locations) of one two-position four way change valve 104, enters the suction inlet of single turbine blower fan 105, single turbine
Blower fan 105 is pressurized to mixed gas, and output has the mixed gas of certain pressure and flow, changes again by two-position four-way
To another path (Fig. 1 current locations) of valve 105, via flow sensor 107 and pressure sensor 106, a tool is reached
There is the crossing of two branch air paths, now, due to the presence of the second check valve 108, the mixed gas of output will be by surge tank
113rd, 110 branch road of the first check valve, consigns to patient the gas with certain pressure and flow that single turbine blower fan 105 is exported
112；Now, gas circuit (the current shape of Fig. 1 of some gas of surge tank 113 by a two-bit triplet magnetic valve 115
State) enter outlet valve 114 control sacculus, outlet valve 114 cuts out, it is ensured that the gas for consigning to patient 112 will not be from expiration
Branch road is revealed.The regulation of the pressure and flow of paid gas is controlled using 105 rotating speed of joint single turbine blower fan and air-breathing
Valve 102 adjusts to realize, after overregulating, the excessive gas that single turbine blower fan 105 is produced return sky through suction control valve 102
Oxygen blending tank 103, recycles for single turbine blower fan 105.In empty oxygen blending tank 103, air and the oxygen through Flow-rate adjustment
Gas mixes, and reaches default gas concentration.Oxygen concentration sensor 111 is carried out to the gas concentration for being conveyed to patient 112 at any time
Detection, and data feedback is adjusted oxygen input quantity, to carry out closed loop control to oxygen concentration to the central processing unit of lung ventilator
System.Oxygen concentration sensor 111 is arranged on the pipeline between sky oxygen blending tank 103 and patient 112.
When lung ventilator is switched to exhale by air-breathing, and when needing PEEP to adjust, central processing unit control single turbine blower fan 105
Slow down and collaboration suction control valve 102, make output pressure stable in the PEEP values for setting (or due to expiration valve arrangement not
With related with the PEEP value ratios for setting), the gas pressure of 114 sacculus of entrance outlet valve is reduced rapidly, now, outlet valve
114 essence have already turned on, and have been adjusted to the PEEP values for setting.The gas of the exhalation of patient 112 will be through outlet valve 114
PEEP control and be discharged in air.
At this moment, as the reverse push opening force of the first check valve 110 is more than PEEP values plus the breath pressure of patient 112, because
This, has cut off the gas conveying for leading to patient 112.Further, should be noted, now, two-bit triplet magnetic valve 115 still keeps scheming
1 state, does not switch over.
When lung ventilator is switched to exhale by air-breathing, and when not needing PEEP to adjust, the single whirlpool of one side central processing unit control
Wheel blower fan 105 slows down and cooperates with suction control valve 102, makes output pressure stable in a little pressure value, generally at 0-1 li
Meter water column, meanwhile, rapid switching air-breathing two four-way switching valves 104 of expectoration make the control space of outlet valve 114 pass through two three
Three-way electromagnetic valve 115 quickly becomes negative pressure, and negative pressure value also will about between 0-1 centimeter water columns, now, as outlet valve 114 is controlled
There is the negative pressure close to atmospheric pressure to generate in space processed, outlet valve 114 will be opened.The gas of the exhalation of patient 112 is through outlet valve
114 are discharged in air.Another embodiment that can change is not switch two four-way switching valves 104 of air-breathing expectoration, also not
Output pressure is adjusted, but directly closes single turbine blower fan 105, i.e., outlet valve 114 is not controlled, is now exhaled
114 standard-sized sheet of valve, it is also possible to realize the requirement of expected control, makes the gas of the exhalation of patient 112 be discharged to air through outlet valve 114
In.
When expectoration is switched to by air-breathing, two-bit triplet magnetic valve 115 is switched to another location, makes the control of outlet valve 114
Space gases are sealed, so as to be maintained in the case that pressure of inspiration(Pi) loses, continuously off expiration loop；Air-breathing expectoration two four
Direction changeover valve 104 obtains TURP and shifts to another location, makes single turbine blower fan 105 be output as negative pressure；Due to the first check valve 110 and
The presence of fast gate valve 109, has also cut off the pipeline for conveying mixed gas to patient 112；Single turbine blower fan 105 is in original air-breathing speed
Accelerate on the basis of degree, and suction control valve 102 is shown in a fully open operation, output pressure is increased to the expectoration pressure value of user preset
Afterwards, fast gate valve 109 throws open, and produces one very between the negative pressure that the gas of 112 intrapulmonary of patient and single turbine blower fan 105 are produced
Big pressure differential, causes the gas of 112 intrapulmonary of patient quickly to breathe out, through fast gate valve 109, the second check valve 108, flow sensing
Device 107, pressure sensor 106, a gas circuit of two four-way switching valves 104 of air-breathing expectoration, single turbine blower fan 105, then through inhaling
Another gas circuit of two four-way switching valves 104 of gas expectoration, then through empty oxygen blending tank 103, filter 101, be discharged in air,
Complete an expectoration.
It is pointed out that if the original speed of single turbine blower fan 105 is too low, accelerating to expected speed may prolong
Late, the rapidity so as to affect expectoration to respond, solution are the upper once expiratory phases in this expectoration, can be to list
Turbofan 105 carries out preaceleration, and flow and pressure controlled task are transferred to suction control valve 102 to complete, so, or even can
With without accelerating or accelerating limitation, so as to greatly promote the response speed of expectoration.
Each sensor in lung ventilator, such as pressure sensor, flow sensor, oxygen concentration sensor, with central authorities
Processor connects, to the various signals in its feedback pipe, so that central processing unit carries out collaboration control to each several part of lung ventilator
System, so that control breathing, expectoration process.
Embodiment described above, the simply present invention more preferably specific embodiment, those skilled in the art is at this
The usual variations and alternatives carried out in the range of inventive technique scheme should all include within the scope of the present invention.
Claims (6)
1. a kind of lung ventilator, it is characterised in that include：
Suction line, which is provided with turbofan, air-breathing expectoration two four-way switching valves, surge tanks；
Expiration pipeline, which is provided with outlet valve, and the outlet valve is by a two-position three-way valve by receiving from the surge tank
Compressed gas control it；
Expectoration pipeline, which is provided with fast gate valve, two four-way switching valves of the air-breathing expectoration, the turbofan,
Wherein suction line and expectoration pipeline share two four-way switching valves of the air-breathing expectoration, the turbofan.
2. lung ventilator according to claim 1, it is characterised in that also include：
Central processing unit, the data according to the sensor detection in lung ventilator carry out Collaborative Control to lung ventilator each several part.
3. lung ventilator according to claim 2, it is characterised in that the sensor in the lung ventilator includes：
Pressure sensor, suction line and expectoration pipeline are shared, and are arranged between turbofan and surge tank；
Flow sensor, suction line and expectoration pipeline are shared, and are arranged between turbofan and surge tank,
The sensor is connected with the central processing unit.
4. lung ventilator according to claim 2, it is characterised in that turbofan is in parallel with a suction control valve.
5. lung ventilator according to claim 4, it is characterised in that the suction control valve is proportional pressure valve or ratio
Example flow control valve.
6. lung ventilator according to claim 4, it is characterised in that the suction line has also included oxygen blending tank, with
The turbofan is connected with the suction control valve, and an oxygen concentration sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611042012.6A CN106492322A (en) | 2016-11-11 | 2016-11-11 | A kind of lung ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611042012.6A CN106492322A (en) | 2016-11-11 | 2016-11-11 | A kind of lung ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106492322A true CN106492322A (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611042012.6A Pending CN106492322A (en) | 2016-11-11 | 2016-11-11 | A kind of lung ventilator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106492322A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111513721A (en) * | 2020-04-22 | 2020-08-11 | 李鹏 | Breathing rhythm generator and control method thereof |
| CN112791294A (en) * | 2020-12-31 | 2021-05-14 | 河北谊安奥美医疗设备有限公司 | Gas circuit control system of piezoelectric proportional valve |
| CN113209435A (en) * | 2021-05-31 | 2021-08-06 | 宁波戴维医疗器械股份有限公司 | Breathing machine system and control method thereof |
| CN114082058A (en) * | 2021-12-21 | 2022-02-25 | 河北谊安奥美医疗设备有限公司 | Functional safety control device and control method for breathing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1849149A (en) * | 2003-09-08 | 2006-10-18 | J·H·埃默森公司 | Insufflation-exsufflation system for removal of broncho-pulmonary secretions with automatic triggering of inhalation phase |
| CN103330962A (en) * | 2013-07-08 | 2013-10-02 | 北京航空航天大学 | Sputum suction device with breath simulating function |
| WO2015167347A1 (en) * | 2014-05-02 | 2015-11-05 | Fisher & Paykel Healthcare Limited | Gas humidification arrangement |
| CN205252145U (en) * | 2015-10-12 | 2016-05-25 | 濡新（北京）科技发展有限公司 | Expectoration system |
| CN206837206U (en) * | 2016-11-11 | 2018-01-05 | 濡新（北京）科技发展有限公司 | A kind of lung ventilator |
-
2016
- 2016-11-11 CN CN201611042012.6A patent/CN106492322A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1849149A (en) * | 2003-09-08 | 2006-10-18 | J·H·埃默森公司 | Insufflation-exsufflation system for removal of broncho-pulmonary secretions with automatic triggering of inhalation phase |
| CN103330962A (en) * | 2013-07-08 | 2013-10-02 | 北京航空航天大学 | Sputum suction device with breath simulating function |
| WO2015167347A1 (en) * | 2014-05-02 | 2015-11-05 | Fisher & Paykel Healthcare Limited | Gas humidification arrangement |
| CN205252145U (en) * | 2015-10-12 | 2016-05-25 | 濡新（北京）科技发展有限公司 | Expectoration system |
| CN206837206U (en) * | 2016-11-11 | 2018-01-05 | 濡新（北京）科技发展有限公司 | A kind of lung ventilator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111513721A (en) * | 2020-04-22 | 2020-08-11 | 李鹏 | Breathing rhythm generator and control method thereof |
| CN111513721B (en) * | 2020-04-22 | 2023-06-02 | 四川中测仪器科技有限公司 | Breathing rhythm generator and control method thereof |
| CN112791294A (en) * | 2020-12-31 | 2021-05-14 | 河北谊安奥美医疗设备有限公司 | Gas circuit control system of piezoelectric proportional valve |
| CN113209435A (en) * | 2021-05-31 | 2021-08-06 | 宁波戴维医疗器械股份有限公司 | Breathing machine system and control method thereof |
| CN114082058A (en) * | 2021-12-21 | 2022-02-25 | 河北谊安奥美医疗设备有限公司 | Functional safety control device and control method for breathing machine |
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Application publication date: 20170315 |