CN109718453A - Breathing Suppotion equipment - Google Patents
Breathing Suppotion equipment Download PDFInfo
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- CN109718453A CN109718453A CN201811546312.7A CN201811546312A CN109718453A CN 109718453 A CN109718453 A CN 109718453A CN 201811546312 A CN201811546312 A CN 201811546312A CN 109718453 A CN109718453 A CN 109718453A
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Abstract
The present invention discloses a kind of Breathing Suppotion equipment, including oxygen gas circuit, air gas circuit and empty oxygen mixing chamber, the inlet end of oxygen gas circuit connects hyperbaric oxygen gas source, the inlet end of air gas circuit connects air-source, the inlet end of empty oxygen mixing chamber is connect with the outlet side of the oxygen gas circuit and air gas circuit, and the outlet side of empty oxygen mixing chamber is connected to patient's connector；Empty oxygen gas mixture road is equipped between the sky oxygen mixing chamber and patient interface, the sky oxygen gas mixture road includes sequentially connected turbofan, plenum chamber and empty oxygen closure member, the gas outlet of the plenum chamber is connected with the first pressure sensor for detecting plenum chamber gas outlet stream pressure, the front and back end of the sky oxygen closure member is equipped with total flow sensor, and the rear end of empty oxygen closure member is equipped with oxygen concentration sensor.The present invention is equipped with total flow sensor to detect the total flow of the empty oxygen gas mixture stream of turbofan rear end, the oxygen concentration of empty oxygen gas mixture stream is detected equipped with oxygen concentration sensor, the numerical value measured is more directly more precisely.
Description
Technical field
The invention belongs to technical field of medical equipment, and in particular to a kind of Breathing Suppotion equipment.
Background technique
Various respiratory systemic disease and clinical anoxic person require that oxygen uptake is added while using the treatment of ventilator
Treatment improve the level of arterial partial pressure of oxygen and oxygen saturation to correct anoxic, promote metabolism.Ventilator is according to treatment side
Case is to solve the most direct effective method of this kind of patient's oxygen uptake to pressurized stream of the air flue of the patient delivering rich in oxygen.
In the patent document application No. is 201610462324.6, a kind of empty oxygen gas mixture for ventilator is proposed
Road and ventilator and method, ventilator include oxygen gas circuit, air gas circuit and the empty oxygen mixing equipped with above-mentioned empty oxygen gas mixture road
Room, oxygen gas circuit are equipped with oxygen micro-scale valve, oxygen flow sensor and oxygen closure member, and air gas circuit is equipped with wind
Machine, sort of air pressure adjusting valve, air flow sensor and air closure member, oxygen valve is according to the mixed gas oxygen concentration that need to be exported
And the air velocity that air flow sensor measures, the aperture of control valve realize the adjusting to oxygen gas flow rate.
But in the previous ventilator-structure of the patent document etc., there are the deficiencies of the following aspects:
One, ventilator is equipped with air flow sensor usually in air air flue, and oxygen flow is equipped in oxygen air flue
Thus sensor monitors the flow of air air flue and oxygen air flue respectively, and after the blower after air and oxygen mix
End is not provided with flow monitoring, but regardless of the mixed gas of which kind of oxygen concentration, carries out being transferred to patient's connector by air flue,
Total flow unavoidably has certain loss, therefore traditional by the way that air mass flow and oxygen flow phase Calais are obtained total flow
Mode, the total flow data of acquisition are simultaneously inaccurate；
Two, traditional ventilator usually not oxygen concentration detection function, oxygen concentration control is by air and oxygen
The volume parameter of mixed traffic is calculated and is obtained, and the oxygen concentration data being achieved in that and inaccurate, in breathing machine equipment
In oxygen concentration can not determine in the case where, it is difficult to realize the high-precision control of oxygen concentration；
Three, exhale last carbon dioxide (ETCO2) monitoring can reflect pulmonary ventilation, lung blood flow, leaked when using patients with mechanical ventilation
When the failures such as gas, catheter twist, airway obstruction, can occur ETCO immediately2Change and the alarm of number and form are sent out in time on one side
Respective handling is now made, existing ventilator does not carry out the function of carbon dioxide detection in respirator one end, exhales last titanium dioxide
Carbon (ETCO2) clinician when needing to obtain patient and exhaling last carbon dioxide monitoring value, generally requires other use and exhale last dioxy
Change carbon patient monitor, using trouble increases the labour of equipment cost and doctor or nurse；
Four, ventilator is pressurized air by blower, provides the air stream with certain pressure or flow, and existing
Ventilator in, there is no settings to monitor the negative pressure at fan air inlet end because the air-flow at fan air inlet end enters pressure,
The working efficiency for influencing blower will lead to the raising of blower output gas flow temperature, to make to trouble if fan air inlet resistance is excessive
The temperature that person inputs gas increases, and causes patient uncomfortable, fan air inlet resistance is excessive to also result in blower output gas pressure
And flow-reduction, ventilator control precision and reduce, and also seriously affect the therapeutic effect of patient；
Five, ventilator is as a kind of important doctor for preventing and treating respiratory disorder, saving even extension patient vitals
Treat equipment, normally can effectively run is important leverage to patient vitals' safety, therefore in ventilator airway flow with
Pressure monitor is most important, and the alarm monitor of existing ventilator is only simply by setting pressure sensor
Air-flow pressure force value in detection air flue cannot really be realized to patient respiratory flow once pressure sensor breaks down
Effectively supervision；Also, only detection intra-airway pressure can not achieve real malfunction monitoring.
Summary of the invention
The main object of the present invention is to provide a kind of Breathing Suppotion equipment, it is intended to which the technology for solving to propose in background technique is asked
Topic.
To achieve the above object, the present invention proposes a kind of Breathing Suppotion equipment, comprising:
Oxygen gas circuit, inlet end connect hyperbaric oxygen gas source,
Air gas circuit, inlet end connect air-source,
Empty oxygen mixing chamber, inlet end are connect with the outlet side of the oxygen gas circuit and air gas circuit, empty oxygen mixing chamber
Outlet side is connected to patient's connector；
Be equipped with empty oxygen gas mixture road between the sky oxygen mixing chamber and patient interface, the sky oxygen gas mixture road include: according to
Turbofan, plenum chamber and the empty oxygen closure member of secondary connection, the gas outlet of the plenum chamber is connected with to be gone out for detecting plenum chamber
The front and back end of the first pressure sensor of port stream pressure, the sky oxygen closure member is equipped with total flow sensor, and empty oxygen shuts off
The rear end of part is equipped with oxygen concentration sensor.
Preferably, the fans entrance of the turbofan is connected with the first tracheae, and the gas outlet of the plenum chamber is connected with
Second tracheae, the first pressure sensor connect the first tracheae and the second tracheae by the first switching valve.
Preferably, second pressure sensor is also connected with by third tracheae on second tracheae.
Preferably, the Breathing Suppotion equipment, which is equipped with, can connect open to atmosphere zero port of atmosphere school, on second tracheae
Equipped with the second switching valve, second switching valve connects zero port of atmosphere school by the 4th tracheae, on the third tracheae
Equipped with third switching valve, the 4th tracheae is equipped with barometric pressure sensor.
Preferably, patient's connector is equipped with breathing mask, and the breathing mask is equipped with patient mask's interface, described
The 4th switching valve is additionally provided on second tracheae, the 4th switching valve connects patient mask's interface, institute by the 5th tracheae
Third tracheae is stated equipped with the 5th switching valve.
Preferably, the 5th tracheae is equipped with and exhales last carbon dioxide monitoring module.
Preferably, the temperature sensor being additionally provided on the empty oxygen gas mixture road between turbofan and plenum chamber.
Preferably, the empty oxygen gas mixture road is equipped with the relief port close to the oxygen concentration sensor.
Preferably, first switching valve, the second switching valve, third switching valve, the 4th switching valve, the 5th switching valve are two
Position three-way valve.
Preferably, the oxygen gas circuit includes sequentially connected high pressure oxygen connector, oxygen filter, safety valve, oxygen
Demand chamber, oxygen pressure sensor, oxygen proportion valve, the first noise reduction part, current stabilization part, oxygen closure member and oxygen flow sensing
Device；The air gas circuit includes sequentially connected air intake, air filter and the second noise reduction part.
Compared with prior art, technical solution of the present invention the utility model has the advantages that
One, in existing ventilator, usually blower is located in air gas circuit, individually air draught is pressurized, after pressurization
Air draught flow to that flow velocity is unstable, and pressure is unbalanced, pressure sensor is set in turbofan outlet end to detect at this time
The pressure of blower output, numerical value is unstable, and detection accuracy is low, also, in order to adjust the pressure of unstable air draught and stream
Amount is arranged sort of air pressure adjusting valve in turbofan outlet end, increases air flue complexity, increase cost.
After turbofan is set to empty oxygen mixing chamber by the present invention, first passing through sky oxygen mixing chamber makes oxygen flow and air gas
Stream is sufficiently mixed, and forms the empty oxygen gas mixture stream with certain oxygen concentration, then make sky oxygen gas mixture stream stream by plenum chamber
Speed is stablized, and not only makes the pressure of the empty oxygen gas mixture stream of the current stabilization chamber outlet end measured by first pressure sensor more accurate,
And it does not need that pressure-regulating valve is arranged again.
The present invention also detects the empty oxygen of turbofan rear end in the front and back end of empty oxygen closure member setting total flow sensor
The total flow of mixed airflow, is arranged oxygen concentration sensor in empty oxygen closure member rear end to detect the oxygen concentration of empty oxygen gas mixture stream,
The total flow numerical value and oxygen concentration numerical value measured in this way is more directly also more accurate, to improve the standard monitored to equipment parameters
True property.
Two, the present invention is equipped with the first switching valve, the first tracheae and the second tracheae, is switched by the control of the first switching valve,
First pressure sensor can be not only used for the stream pressure of detection plenum chamber outlet, can be also used for detection turbofan entrance
End pressure monitors the negative pressure at fan air inlet end to realize, solution will lead to blower output gas since blower vapour lock is excessive
Temperature increases, flow and pressure reduction are thus the problem of influencing patient outcomes.
Three, the present invention is not only provided with first pressure sensor, also in connection first pressure sensor and plenum chamber gas outlet
Third tracheae is set on second tracheae at end to connect second pressure sensor, is mixed as a result, from the empty oxygen of plenum chamber outlet outflow
The pressure of interflow body can be detected by first pressure sensor and any of second pressure sensor, be effectively prevented
The monitoring to empty oxygen mixed-fluid pressure can be lost when only one pressure sensor breaks down, to endanger controlling for patient
The generation of the case where treatment.
Four, Breathing Suppotion equipment of the present invention is additionally provided with for realizing to first pressure sensor and second pressure sensing
Device carries out zero port of atmosphere school of the calibration of school zero, and first pressure sensor connects the atmosphere school by the second switching valve of control
Zero port, second pressure sensor connect zero port of atmosphere school, barometric pressure sensor by control third switching valve
For detecting atmospheric pressure, as a result, when shutdown first pressure sensor, the connection of second pressure sensor and empty oxygen gas mixture road
When, if when the atmospheric value detected and the inconsistent atmospheric pressure that barometric pressure sensor detects, needing to press first
Force snesor and second pressure sensor carry out the calibration of school zero, to continuously improve and guarantee first pressure sensor and the second pressure
The detection accuracy of force snesor then guarantees effective monitoring of the entire Breathing Suppotion equipment to air flue internal respiration pressure.
Five, patient mask's interface, pressure is arranged by a small pressure acquisition pipe also on breathing mask in the present invention
It is very tiny to acquire bore, guarantee does not influence respiratory surface internal mask pressure, or can correct by computer software, first pressure
Sensor can be to connect patient mask's interface by the 4th switching valve of control, and second pressure sensor is cut by control the 5th
Valve is changed to connect patient mask's interface, when first pressure sensor, second pressure sensor connection patient mask's interface, is used
Pressure value in detection breathing mask.
Six, patient mask's interface of the present invention, which is also connected with, exhales last carbon dioxide monitoring module, will exhale last dioxy detection module
Also it is integrated in this Breathing Suppotion equipment, thus when doctor or nurse need to obtain patient and exhale last carbon dioxide values, no longer needs
In addition other instruments are connected, the use cost of equipment is alleviated, alleviate the use complexity of patient.
Seven, the present invention is equipped with temperature sensor between turbofan and plenum chamber, since turbofan at work can
Fever, and ventilator product standard has regulation turbofan output gas temperature that cannot surpass 40 DEG C, therefore temperature sensor is arranged
For monitoring air outlet temperature, alarm can be triggered when the temperature is excessively high, thus the work safety for the machine that ensures respiration.
Eight, the present invention is arranged one also near oxygen concentration sensor and lets out to improve the measurement accuracy of oxygen concentration sensor
Head piece, as the patient exhales, there are still the total flows for having certain flow rate in the upstream air flue of relief port, and oxygen gas flow rate at this time
Still by the control of oxygen proportion valve within the scope of full accuracy oxygen gas flow rate, thus, it is possible to improve oxygen concentration precision for relief port.
Nine, total flow sensor of the present invention, oxygen concentration sensor, first pressure sensor, second pressure sensor and five
A switching valve constitutes an accurate pressure monitor system and first pressure may be implemented by the combinative movement of each switching valve
Sensor monitors the negative pressure monitoring, the monitoring of turbofan rear end pressure output, patient mask's end pressure of turbofan arrival end
With atmospheric pressure school zero, similarly, second pressure sensor can also realize the monitoring of turbofan rear end pressure output, patient mask end
Pressure monitoring and atmospheric pressure school zero not only increase the control precision of entire Breathing Suppotion equipment, thus to entire breathing branch
Holding equipment is comprehensively and effectively protected.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural block diagram for the Breathing Suppotion equipment that one embodiment of the invention proposes；
Fig. 2 is the structure chart in the hollow oxygen gas mixture road of Breathing Suppotion equipment that Fig. 1 is proposed.
Drawing reference numeral explanation of the invention:
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, be also possible to
Electrical connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
It in addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Based on logical technical staff can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this
The combination of technical solution is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of Breathing Suppotion equipment.
It is mixed to please refer to Fig. 1 to Fig. 2, Breathing Suppotion equipment, including oxygen gas circuit, air gas circuit, empty oxygen mixing chamber 3 and empty oxygen
Close gas circuit.
Oxygen gas circuit:
Oxygen gas circuit includes the high pressure oxygen connector 11 for passing sequentially through pipeline connection, oxygen filter 12, safety valve 13, oxygen
Gas demand chamber 14, oxygen proportion valve 15, the first noise reduction part 16, current stabilization part 17 and oxygen closure member 18.
High pressure oxygen connector 11 is the inlet end of oxygen gas circuit, is used for external hyperbaric oxygen gas source.Oxygen filter 12 is used
It is filtered out in carrying out impurity, for removing the impurity such as molecule and droplet.Safety valve 13, is set to oxygen filter 12 and oxygen is fixed
It measures between 14 entrance of room, the high pressure oxygen source for avoiding exceeding normally-pressured neighbor directly acts on patient, jeopardizes the life of patient
Life safety, safety valve 13 are opened when access is higher than the faulty operation of oxygen source pressure, effective protection ventilator airway and patient's peace
Entirely；
Oxygen demand chamber 14 is the oxygen memory space that a volume is arranged in oxygen gas circuit and increases, can be oxygen
It is other in gas circuit to connect a large-rolume container, it is also possible to the connecting pipe directly between safety valve 13 and oxygen proportion valve 14
Locate internal diameter to increase, form the oxygen reserves room an of large space, as a result, when the patient inhales, the sucking of oxygen is increased, by oxygen
The limitation of gas input channel peak flow rate (PFR), the oxygen flow conveyed through oxygen channel are not enough to support the high flow rate moment of oxygen to increase
Greatly, to influence oxygen concentration in pipeline, and passing through the setting of oxygen demand chamber, deposit has carrier of oxygen in oxygen demand chamber,
Additional oxygen supply can be provided for oxygen air flue, as the patient exhales, source of oxygen is led to again when high flow rate oxygen stream arrives
Oxygen channel delivery of supplemental oxygen gas into oxygen demand chamber is crossed, carries out oxygen replenishment to continue as patient in air-breathing next time, from
And improve the precision of oxygen concentration in oxygen channel.
Oxygen proportion valve 15, for adjusting oxygen gas flow rate.First noise reduction part 16, for reducing the noise in oxygen gas circuit.
Current stabilization part 17 stablizes oxygen gas flow rate, so that the oxygen closure member 18 positioned at downstream is generated stable pressure difference, makes oxygen flow
The collected value of sensor 102 is more accurate, improves the measurement accuracy of oxygen flow sensor 102.Oxygen closure member 18, oxygen
Pressure difference is generated in its rear and front end by oxygen closure member 18.
In addition, oxygen gas circuit is exported in oxygen demand chamber is equipped with hyperbaric oxygen pressure sensor 101 between oxygen proportion valve,
For detecting oxygen source pressure, for alarming or prompting oxygen source pressure；Oxygen gas circuit is also equipped with oxygen in 18 front and back end of oxygen closure member
Mass-air-flow sensor 102, for measuring practical oxygen flow by measuring the pressure difference in oxygen closure member front and back end.
Air gas circuit:
Air gas circuit includes sequentially connected air intake 21, air filter 22 and the second noise reduction part 23.Air passes through
Air intake 21 enters air gas circuit, air filter 22, for filtering air impurity.Noise reduction part 23, makes an uproar for reducing air
Sound.
Empty oxygen mixing chamber 3:
Empty oxygen gas mixture road is equipped in air mixing chamber 3, empty oxygen gas mixture road includes turbulence part 31 and empty oxygen mixing chamber
32, turbulence part 31 is equipped with oxygen air flue 311 and air air flue 312, and air air flue 312 is the circular cylindrical cavity of both ends open,
Oxygen air flue 311 is the annular cavity around the setting of air air flue, and the closed at one end of oxygen air flue 311, the other end are equipped with oxygen
The outside of vapour lock piece 313, oxygen air flue 311 is equipped with oxygen intake 314.Empty 32 one end of oxygen mixing chamber is equipped with taper and mixes entrance
321, entrance 321 is mixed by taper and imports oxygen flow in air draught, keeps air and oxygen mix more uniform, empty oxygen
Mixed flow piece 322 is equipped in mixing chamber 32.The oxygen stream that comes out through turbulence part 31, air stream is respectively from oxygen air flue, air gas
Road is imported into the taper mixing entrance 321 of sky oxygen mixing chamber 32, is carrying out air-flow agitation by mixed flow piece 322, to again will
Air-flow is sufficiently mixed, and mixed air-flow is exported from the outlet of empty oxygen mixing chamber 32, the empty oxygen gas mixture thus exported
Pressure precision with higher.
Empty oxygen gas mixture road
Empty oxygen gas mixture road includes turbofan 41, plenum chamber 42, empty oxygen closure member 43, temperature sensor 401, total flow
Sensor 402, oxygen concentration sensor 403, relief port 44, patient's connector 45 and first pressure sensor 404, second are pressed
Force snesor 405, the first switching valve 461, the second switching valve 462, third switching valve 463, the switching of the 4th switching valve the 464, the 5th
Valve 465 exhales last carbon dioxide sensor 406, barometric pressure sensor 407, zero port 48 of atmosphere school and patient mask's interface 49.
Mixed sky oxygen stream enters turbofan 41, and turbofan 41 is for being pressurized empty oxygen stream.Current stabilization
Room 42, the pressure sky oxygen stream for exporting to turbofan 41 are stablized, and are that the pressure sensor of rear end and total flow pass
Sensor acquisition provides stable flow conditions.Empty oxygen closure member 43, oxygen pass through empty oxygen closure member 43 and generate in its rear and front end
Pressure difference.Temperature sensor 401, turbofan 41 can generate heat at work, and ventilator product standard regulation, turbofan exports gas
Temperature cannot surpass 40 DEG C, therefore temperature sensor 401 is arranged for monitoring air outlet temperature, and improve turbofan work and protect
It protects or alarms.Total flow sensor 402 measures mixed sky by measuring the pressure difference in empty 43 front and back end of oxygen closure member
The flow of oxygen stream is added to obtain the side of total flow with air mass flow compared to traditional by the oxygen flow that will be measured respectively
Formula, the data that setting total flow sensor obtains are more acurrate.Oxygen concentration sensor 403, set on the outlet end of empty oxygen closure member 43,
For detecting the interior oxygen concentration of mixed empty oxygen stream, need to calculate by conduit volume and flow compared to traditional
Locate oxygen concentration, it is more accurate to sense the oxygen concentration data that 403 devices measure using oxygen concentration.
Relief port 44, the oxygen concentration set on empty oxygen gas mixture road senses near 403 devices, for improving oxygen concentration sensor
403 measurement accuracy, concrete principle are as follows: oxygen concentration is calculated using the volume ratio of oxygen and mixed empty carrier of oxygen
Out, as the patient exhales, the total flow very little of the empty oxygen stream of output, or even there are minus flows, need to turn down at this time and even close
Close oxygen proportion valve, and if oxygen proportion valve turns flow or closing down, will lead to the oxygen fluid in oxygen air flue flow velocity essence
It spends excessively poor, therefore, a relief port 44 is being designed near the oxygen concentration sensor 403, as the patient exhales, in aerial drainage
There are still the total flows for having certain flow rate in the upstream air flue of mouth 44, and oxygen gas flow rate is still existed by the control of oxygen proportion valve at this time
Within the scope of full accuracy oxygen gas flow rate, therefore relief port can be improved oxygen concentration precision.
First pressure sensor 404 connects the first tracheae 471 and the second tracheae 472 by the first switching valve 461, and first cuts
Changing valve 461 is a two-position three-way valve, and the first tracheae 471 is connected to turbofan arrival end, enables first pressure sensor 404
It is enough in the empty oxygen flowing pressure of detection 41 arrival end of turbofan, the second tracheae 472 is connected to the outlet end of plenum chamber 42, energy
It is enough in the empty oxygen flowing pressure of detection 42 outlet end of plenum chamber.Second tracheae 472 is equipped with the second switching valve 462 and the 4th and cuts
Change valve 464.Second pressure sensor 405 also connects the outlet end of the plenum chamber 42, third tracheae by third tracheae 473
473 are equipped with third switching valve 463 and the 5th switching valve 465.Second switching valve 462, third switching valve 463, the 4th switching valve
464 and the 5th switching valve 465 all be two-position three way magnetic valve.
In addition, this Breathing Suppotion equipment is additionally provided with zero port 48 of atmosphere school and patient mask's interface 49, zero port of atmosphere school
48 connect the second switching valve 462 and third switching valve 463 by the 4th tracheae 474, and patient mask's interface 49 passes through the 5th tracheae
475 the 4th switching valves 464 of connection and the 5th switching valve 465.Also, barometric pressure sensor is additionally provided on the 4th tracheae 474
406, the 5th tracheae 475 is equipped with and exhales last carbon dioxide sensor 407.
As a result, when the first switching valve 461 of control, the second switching valve 462 and the 4th switching valve 464 are in different working machines
When energy state, it may be respectively used for realizing different functions, specifically include:
1: the first switching valve of state, 461 left position, first pressure sensor 404 is connected to 41 inlet end of turbofan, for examining
Survey 41 air inlet end pressure of turbofan；
The right position of 2: the first switching valve of state 461, the second switching valve 462, the 4th switching valve 464 all left positions, first pressure pass
Sensor 404 is connected to 42 outlet end of plenum chamber, for detecting the pressure of 42 outlet end gas of plenum chamber；
The right position of 3: the first switching valve of state 461, the right position of the second switching valve 462, first pressure sensor 404 pass through atmosphere school
Zero port 48 connects atmosphere, calibrates for carrying out school zero to first pressure sensor 404；
The right position of 4: the first switching valve of state 461,462 left position of the second switching valve, the right position of the 4th switching valve 464, first pressure
Sensor connects patient mask's interface 49, for detecting stream pressure at patient mask's interface 49.
When controlling third switching valve 463 and the 5th switching valve 465 is in different work functional states, can use respectively
In realizing different functions, specifically include:
State 5: 463 left position of third switching valve, 465 left position of the 5th switching valve, second pressure sensor connection plenum chamber go out
Mouth end, for detecting the pressure of 42 exit gas of plenum chamber；
State 6: the right position of third switching valve 463, second pressure sensor 405 connect zero port 48 of atmosphere school, for the
Two pressure sensors 405 carry out the calibration of school zero；
State 7: 463 left position of third switching valve, the right position of the 5th switching valve 465, second pressure sensor 405 connect patient face
Cover interface 49.
Wherein, when each valve is in state 1, first pressure sensor 404 is used to monitor turbofan arrival end air-flow pressure
Power, for determining whether there are line clogging or oxygen are out of control, when air gas blocks, such as filter is not replaced for a long time,
When dust accretions cause air inlet vapour lock to increase, first pressure sensor 404 can detect turbofan inlet port pressure
It is reduced to alarm threshold value, triggering alarm, if oxygen is out of control, turbofan inlet port pressure increases to alarm threshold value, to touch
Hair ventilator is alarmed.
When each valve is in state 2, first pressure sensor 404 is used to monitor the output gas flow pressure of turbofan, with
This can be used to determine the working condition of turbofan 41, if also, when not connecing or block at patient mask's interface 49, Ke Yiyong
The turbofan output pressure that state 2 measures replaces mask end pressure, and alarms；At each valve when state 5, second pressure sensing
Device 405 can be used for detecting the output pressure of turbofan, for evading when 404 single failure of first pressure sensor
Turbofan forefront pressure can not be acquired, is a kind of emergency mechanism.
When each valve is in state 3, calibrated for carrying out school zero to first pressure sensor 404, when each valve is in state 6
When, it is calibrated for carrying out school zero to second pressure sensor 405.When first pressure sensor 404 or second pressure sensor 405
Aging or working environment voltage change carry out school zero and calibration to sensor, and temperature and the sensitivity that can eliminate sensor are inclined
Error caused by moving, to guarantee the measurement precision of sensor.Barometric pressure sensor is for detecting atmosphere actual pressure
Value, if the pressure value that detects of first pressure sensor 404 or second pressure sensor 405 and atmosphere actual pressure value not phase
Together, then first pressure sensor 404 or second pressure sensor 405 measure inaccuracy need to carry out school zero calibration, open at this time
Zero port 48 of atmosphere school, control first pressure sensor 404 or second pressure sensor 405 are by zero port 48 of atmosphere school and greatly
Gas phase is logical, and by sensor self-correcting equipment or special detecting instrument carries out school zero to sensor and atmospheric pressure is calibrated, school
Zero calibration terminates, then by the closing of 48 mouthfuls of zero end of atmosphere school, so as to continuously improve and guarantee the measurement precision of sensor.
When each valve is in state 4, first pressure sensor 404 is for detecting pressure at patient mask's interface 49, when each
When valve is in state 7, second pressure sensor 405 can be used for pressure at detection patient mask's interface 49, as a result, when first
It is convertible to use another progress mask pressure monitoring when one breaks down in pressure sensor and second pressure sensor.
Under normal conditions, first pressure sensor 404 is monitoring always pressure in plenum chamber 42, second pressure sensor
405 for monitoring patient mask's interface end pressure.When starting, two pressure sensors have the of short duration time to pass through atmosphere school zero
Port connects atmospheric pressure to be used for the calibration of pressure itself precision.When 402 data of oxygen flow sensor 102 and total flow sensor
When abnormal, first pressure sensor 404 is switched to turbofan front end, supervises with the presence or absence of line clogging described in state 1
Or the phenomenon that oxygen is out of control.
Last carbon dioxide monitoring module is exhaled to include suction pump and exhale last carbon dioxide sensor 407, suction pump is used for from trouble
The gas that ultramicron flow is drawn in person's mask, by monitoring dioxy in patient mask with small and constant flow rate gas
Change the content of carbon, the influence to respiratory surface internal mask pressure is more small, and small influence can be by connecting computer system software
Be modified, thus will not in patient mask pressure acquisition precision.This Breathing Suppotion equipment exhales last titanium dioxide due to being provided with
Carbon monitoring modular will exhale last carbon dioxide monitoring module to be set to inside equipment, so that reducing without still further using patient monitor
The complexity that patient uses can also monitor to exhale last carbon dioxide values well using more convenient.
The present invention constitutes pressure by first pressure sensor 404, second pressure sensor 405 and five two-position three-way valves
Power monitors system and first pressure sensor 404 may be implemented to turbofan arrival end by the combinative movement of two-position three-way valve
Negative pressure monitoring, the monitoring of turbofan rear end pressure output, the monitoring of patient mask's end pressure and atmospheric pressure school zero, similarly, the
Two pressure sensors 405 can also realize the monitoring of turbofan rear end pressure output, the monitoring of patient mask's end pressure and atmospheric pressure
School zero.First pressure sensor 404 and second pressure sensor 405 can wherein some sensor failure when play
Spare effect guarantees the therapeutic effect for not influencing patient, very crucial to the physical safety for being further ensured that patient.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of Breathing Suppotion equipment, comprising:
Oxygen gas circuit, inlet end connect hyperbaric oxygen gas source,
Air gas circuit, inlet end connect air-source,
Empty oxygen mixing chamber, inlet end are connect with the outlet side of the oxygen gas circuit and air gas circuit, the outlet of empty oxygen mixing chamber
End is connected to patient's connector；
It is characterized in that,
Empty oxygen gas mixture road is equipped between the sky oxygen mixing chamber and patient interface, the sky oxygen gas mixture road includes: successively to connect
Turbofan, plenum chamber and the empty oxygen closure member connect, the gas outlet of the plenum chamber is connected with for detecting plenum chamber gas outlet
The front and back end of the first pressure sensor of stream pressure, the sky oxygen closure member is equipped with total flow sensor, empty oxygen closure member
Rear end is equipped with oxygen concentration sensor.
2. Breathing Suppotion equipment as described in claim 1, which is characterized in that the fans entrance of the turbofan is connected with
One tracheae, the gas outlet of the plenum chamber are connected with the second tracheae, and the first pressure sensor is connected by the first switching valve
First tracheae and the second tracheae.
3. Breathing Suppotion equipment as claimed in claim 2, which is characterized in that also connected by third tracheae on second tracheae
It is connected to second pressure sensor.
4. Breathing Suppotion equipment as claimed in claim 3, which is characterized in that the Breathing Suppotion equipment, which is equipped with, can be connected to greatly
Zero port of atmosphere school of gas, second tracheae are equipped with the second switching valve, and second switching valve is connected by the 4th tracheae
Zero port of atmosphere school, the third tracheae are equipped with third switching valve, and the 4th tracheae is sensed equipped with atmospheric pressure
Device.
5. Breathing Suppotion equipment as claimed in claim 3, which is characterized in that patient's connector is equipped with breathing mask, institute
It states breathing mask and is equipped with patient mask's interface, the 4th switching valve is additionally provided on second tracheae, the 4th switching valve is logical
It crosses the 5th tracheae and connects patient mask's interface, the third tracheae is equipped with the 5th switching valve.
6. Breathing Suppotion equipment as claimed in claim 5, which is characterized in that the 5th tracheae is equipped with and exhales last carbon dioxide
Monitoring modular.
7. Breathing Suppotion equipment as described in claim 1, which is characterized in that be additionally provided on the sky oxygen gas mixture road positioned at whirlpool
Take turns the temperature sensor between blower and plenum chamber.
8. Breathing Suppotion equipment as described in claim 1, which is characterized in that the sky oxygen gas mixture road is equipped with close to described
The relief port of oxygen concentration sensor.
9. Breathing Suppotion equipment as described in claim 4 or 5, which is characterized in that first switching valve, the second switching valve,
Third switching valve, the 4th switching valve, the 5th switching valve are two-position three-way valve.
10. Breathing Suppotion equipment as claimed in any one of claims 1 to 8, which is characterized in that the oxygen gas circuit includes successively
High pressure oxygen connector, oxygen filter, safety valve, oxygen demand chamber, oxygen pressure sensor, the oxygen proportion valve, of connection
One noise reduction part, current stabilization part, oxygen closure member and oxygen flow sensor；The air gas circuit includes that sequentially connected air enters
Mouth, air filter and the second noise reduction part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546312.7A CN109718453A (en) | 2018-12-18 | 2018-12-18 | Breathing Suppotion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546312.7A CN109718453A (en) | 2018-12-18 | 2018-12-18 | Breathing Suppotion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109718453A true CN109718453A (en) | 2019-05-07 |
Family
ID=66296820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811546312.7A Pending CN109718453A (en) | 2018-12-18 | 2018-12-18 | Breathing Suppotion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109718453A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292691A (en) * | 2019-07-12 | 2019-10-01 | 深圳市俄中博医医疗科技有限公司 | The high hypoxic training equipment of novel atmosphere intermission, system and its training method |
| CN110898301A (en) * | 2019-12-26 | 2020-03-24 | 天津怡和嘉业医疗科技有限公司 | Ventilation treatment equipment and control method |
| CN111603642A (en) * | 2020-03-31 | 2020-09-01 | 湖南万脉医疗科技有限公司 | Breathing machine is adjusted in intelligent compensation of ventilating |
| WO2020243958A1 (en) * | 2019-06-06 | 2020-12-10 | Vincent Medical (Dong Guan) Manufacturing Co., Ltd. | Respiratory apparatus with noise-damping member |
| CN113134150A (en) * | 2020-01-17 | 2021-07-20 | 德尔格制造股份两合公司 | Anesthetic dosing device with a measuring unit |
| WO2021146131A1 (en) * | 2020-01-14 | 2021-07-22 | Model Software Corporation | Methods for minimizing delayed effects of exposure to reduced oxygen partial pressure via administration of supplemental oxygen |
| WO2021164071A1 (en) * | 2020-02-19 | 2021-08-26 | 广州市妇女儿童医疗中心 | Ventilator |
| CN113413529A (en) * | 2021-06-20 | 2021-09-21 | 三河科达实业有限公司 | Portable universal mechanical ventilation module for life support system adapted to field environment |
| WO2022056965A1 (en) * | 2020-09-15 | 2022-03-24 | 湖南明康中锦医疗科技发展有限公司 | Cough assist device based on electromagnetic positive/negative pressure regulating valve and control method |
| CN114733024A (en) * | 2022-04-26 | 2022-07-12 | 广州蓝仕威克医疗科技有限公司 | Breathing device with carbon dioxide compensation function |
| US11617847B2 (en) | 2017-01-11 | 2023-04-04 | Model Software Corporation | Methods for minimizing delayed effects of exposure to reduced oxygen partial pressure via administration of supplemental oxygen |
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| US11617847B2 (en) | 2017-01-11 | 2023-04-04 | Model Software Corporation | Methods for minimizing delayed effects of exposure to reduced oxygen partial pressure via administration of supplemental oxygen |
| WO2020243958A1 (en) * | 2019-06-06 | 2020-12-10 | Vincent Medical (Dong Guan) Manufacturing Co., Ltd. | Respiratory apparatus with noise-damping member |
| CN113365682A (en) * | 2019-06-06 | 2021-09-07 | 东莞永胜医疗制品有限公司 | Breathing apparatus with noise damping member |
| CN110292691A (en) * | 2019-07-12 | 2019-10-01 | 深圳市俄中博医医疗科技有限公司 | The high hypoxic training equipment of novel atmosphere intermission, system and its training method |
| CN110898301B (en) * | 2019-12-26 | 2022-12-27 | 天津怡和嘉业医疗科技有限公司 | Ventilation treatment equipment and control method |
| CN110898301A (en) * | 2019-12-26 | 2020-03-24 | 天津怡和嘉业医疗科技有限公司 | Ventilation treatment equipment and control method |
| WO2021146131A1 (en) * | 2020-01-14 | 2021-07-22 | Model Software Corporation | Methods for minimizing delayed effects of exposure to reduced oxygen partial pressure via administration of supplemental oxygen |
| CN113134150A (en) * | 2020-01-17 | 2021-07-20 | 德尔格制造股份两合公司 | Anesthetic dosing device with a measuring unit |
| WO2021164071A1 (en) * | 2020-02-19 | 2021-08-26 | 广州市妇女儿童医疗中心 | Ventilator |
| CN111603642A (en) * | 2020-03-31 | 2020-09-01 | 湖南万脉医疗科技有限公司 | Breathing machine is adjusted in intelligent compensation of ventilating |
| WO2022056965A1 (en) * | 2020-09-15 | 2022-03-24 | 湖南明康中锦医疗科技发展有限公司 | Cough assist device based on electromagnetic positive/negative pressure regulating valve and control method |
| CN113413529A (en) * | 2021-06-20 | 2021-09-21 | 三河科达实业有限公司 | Portable universal mechanical ventilation module for life support system adapted to field environment |
| CN114733024A (en) * | 2022-04-26 | 2022-07-12 | 广州蓝仕威克医疗科技有限公司 | Breathing device with carbon dioxide compensation function |
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Application publication date: 20190507 |