CN103809622B - Standby electric-controlled type flow control system and method are used as using mechanical control - Google Patents
Standby electric-controlled type flow control system and method are used as using mechanical control Download PDFInfo
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- CN103809622B CN103809622B CN201210453845.7A CN201210453845A CN103809622B CN 103809622 B CN103809622 B CN 103809622B CN 201210453845 A CN201210453845 A CN 201210453845A CN 103809622 B CN103809622 B CN 103809622B
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Abstract
The application is related to using mechanical control as standby electric-controlled type flow control system and method, and wherein electronic flow selector can be used for the flow of selection fluid.When system is in automatically controlled pattern, encoder is used for electronic type and encodes selected fluid flow.Controller receives encoded fluid flow, sends corresponding control signal to electronic valve to allow fluid with selected traffic flow.When system is in mechanical mode, standby mechanical flow selector directly controls fluid flow.When system is in mechanical mode, standby mechanical flow selector is in ejected position.When system is in automatically controlled pattern, standby mechanical flow selector is in retracted position.Disclosed herein as well is gas and the related application of anesthesia conveying.
Description
Technical field
The application is related to regulation control fluid flow manually, specifically, and the application is related to a kind of by mechanical flow control
It is used as standby electric-controlled type flow control system and method.
Background technology
Anesthesia machine must accurately and reliably control the throughput of patient.In existing anesthetic gases induction system, doctor is not
The flow of live gas such as oxygen, laughing gas and the air that can wherein be conveyed by electric-controlled type or mechanical control with the case of.
Mechanical control is generally all to adjust throughput by mechanical knob needle-valve.And electric-controlled type generally uses full electronic stream
Gauge, can be by setting some specific numerical value and then the control of flow being automatically performed by system.Full electronic flowmeter
So that the control of Anesthesia machine gas flow is more accurate, more convenient, while friendly operation interface is also wide popular with users.But full electricity
Minor flowmeter also has some shortcomings, such as its dependence to power supply, it is necessary to can just be worked by electricity；In addition, complicated
System architecture also cause the crash rate of all-electronin flowmeter to raise.Therefore, it is necessary in the anesthesia of equipment all-electronin flowmeter
Retain traditional mechanical knob needle-valve on machine as standby, gas stream is ensured when system cut-off or the failure of all-electronin flowmeter
Amount is still accurate adjustable.However, existing as in standby mechanical control, needle-valve is all exposed, on guidance panel
It can be accessible at any time, easy maloperation, and whole panel appearance is not succinct enough；The standby needle-valve that in addition, there will be can only be controlled
The flow of oxygen processed.
The content of the invention
In some embodiments, during in automatically controlled pattern, one or more Traffic selectors（Such as knob）For carrying out electricity
Minor selects gas flow.Anesthetic gases induction system can also include standby mechanical control equipment, for being not powered on
The flow of one or more gas is controlled during state.In a kind of embodiment, the group of triple valve, and/or normally open valve and normally close valve
Share in optionally allow for the gas from electronic type proportioning valve or mechanical operation needle-valve flowing.
For example, when fluid flow control system is in automatically controlled pattern, triple valve or other switching valve equipment allow to come from
The fluid of electronic type proportioning valve flows to patient end.When fluid flow control system is in non-power status or is selected to manually
During control, triple valve allows the fluid from electronic type proportioning valve to flow to patient end.Alternatively, switching valve described herein
Equipment may include the combination of normally open valve and normally close valve, to substitute triple valve or be used together with reference to triple valve.In some realities
Apply in mode, switching valve equipment is located between fluid input and control valve for fluids；In other embodiments, switching valve equipment
Between control valve for fluids and fluid exit.
Electronic flow control valve is used to optionally receive the fluid from fluid input.Doctor can pass through electronic type
Traffic selector is able to select the flow for the first fluid for flowing through electronic flow control valve.For example, selecting electronic flow
The content of device selection carries out electronic type coding by encoder, and encoded selection content then is sent into electronic type control
Device.Selection content based on electronic flow selector, electronic controller can transmit control signal and be controlled to electronic flow
Valve is to control fluid flow.Electronic flow control valve may include electronic type proportioning valve, and electronic flow selector may include
Can by doctor's manual rotation knob.Alternatively, electronic flow selector may include any miscellaneous numeral and/or mould
Intend selector.
In some embodiments, the flow of each available fluid is controlled by unique electronic flow control valve.
Unique electronic flow selector is used for the flow for controlling each electronic flow control valve.Or, optionally distribute
One or more electronic flow selectors are to control two or more electronic flow control valves.For example, system may include
Three electronic flow control valves, one is used to control oxygen, and one is used to control air, and another is used to control laughing gas.System
System can also be provided only with two electronic flow selectors, and one of them, which may be selected, is used to control the flow of air or the stream of laughing gas
Amount.Any electronic flow selector by fixed allocation or optionally is distributed, any one or more can be controlled to can use
The flow of fluid.
One or more mechanical flow control valves are used for the flow for controlling each available fluid.For example, by unique
Needle-valve mechanically controls the flow of each available fluid.The mechanical flow selector manipulated by doctor, such as knob or cunning
Block, available for the flow that mechanically adjustment passes through each needle-valve.In some embodiments, when system is in automatically controlled pattern,
Mechanical flow selector can be disabled and/or retract to prevent the Flow-rate adjustment of maloperation.
When therefore, in automatically controlled pattern, by adjusting one or more electronic flow selectors, it can control to flow through one
The flow of one or more fluid of individual or multiple electronic flow control valves.In the energized state, disable and/or with its other party
Formula stops standby mechanical flow control valve, to prevent the combination of its supply fluid or multiple fluid.In addition, in energization shape
Under state, the mechanical flow selector for the mechanical flow control valve correlation for disabling and/or retracting standby is adjusted to prevent fluid stopping amount
Section.
Under unpowered state or when being selected to manually operated, disable and/or otherwise disable electronic flow
Control valve, to avoid the combination of its supply fluid or multiple fluid.Mechanical flow selector is enabled or ejects, to allow doctor
Control flows through the flow of one or more fluid of standby mechanical flow control valve manually.
In some embodiments, in retraction mechanical flow selector, such as system Power resumption or system are reset
During reset, the flow of each standby mechanical flow control valve, which is cleared, is reset to initial state（home state）, wherein,
When system enters unpowered state, gas presses pre-set gas flow automatic flowing.
In a kind of embodiment, electric-controlled type flow control valve includes electric-controlled type stepper motor, is flowed through mechanically for adjusting
The fluid flow of flow control valve such as needle-valve.In the various embodiments that the application is provided, described fluid is gas, such as oxygen
Gas, laughing gas and/or air.However, the various embodiments of system and method described herein are suitable for any various each
The liquid and/or gas of sample.
Brief description of the drawings
Fig. 1 is the block diagram of anesthetic gases induction system, wherein, anesthetic gases induction system is provided with electric-controlled type and standby machine
Tool formula control device is to control oxygen, laughing gas and the flow of air.
Fig. 2A is the schematic diagram of the anesthetic gases induction system provided with three mechanical flow control selections devices, wherein, this
Three mechanical flow control selections devices are respectively used to control the flow of oxygen, laughing gas and air.
Fig. 2 B are provided with two electronic flow control selections devices and three standby mechanical flow control selections devices
The schematic diagram of anesthetic gases induction system, wherein, electronic flow control selections device is used to carry out the every of three road gases all the way
Selectivity control, mechanical flow control selections device is used for being controlled per gas all the way.
Fig. 3 for anesthetic gases induction system control panel close up view, including for selectivity control oxygen and
Two electronic flow control selections devices of laughing gas or oxygen and air.
Fig. 4 is the close-up view of the control panel of anesthetic gases induction system, is controlled including standby mechanical flow
Part, the flowing independently to control three road gases.
Fig. 5 is in retracted mode and in ejection for mechanical flow control selections device standby in a kind of embodiment
The schematic diagram of state.
Fig. 6 is another view of the control panel of anesthetic gases induction system, controls to select including electronic flow
Select device and standby mechanical flow control selections device.
Fig. 7 is the signal of the mechanical part for the three mechanical flow control selections devices that selectively eject and retract
Figure.
Fig. 8 is for the schematic diagram for the telescopic component for selectively ejecting mechanical flow control selections device.
Fig. 9 is the three mechanical flow control selections devices and its related needle-valve group for controlling the flow of three road gases
The top view of part.
Figure 10 is for Traffic selector component to be slidably connected to the balladeur train of telescopic component and showing for cross bar component
It is intended to.
Figure 11 is the sectional view of Traffic selector component, and wherein detection switch confirms that mechanical needle-valve is in initial state.
Figure 12 is the schematic diagram of the Traffic selector component with position detector, and wherein position detector is used for having selection
Ground detects the relative position of valve rod and correlative flow.
Figure 13 is the principle schematic of Telescopic movable needle valve assembly.
Figure 14 is the schematic diagram that retractor device is attached with needle-valve equipment.
Embodiment
Though it is useful using electronic flow control to gas in anesthetic gases course of conveying, it is also required to provide mechanical
Control is as standby.For example, during system dead electricity, anesthetic gases course of conveying stills need to continue supply gas in dead electricity.This Shen
In anesthetic gases course of conveying, electronic type control device such as vernier knob and encoder please be used in some embodiments
Electronic type adjustment easily can be carried out to the flow of one or more gas；But, can when occurring dead electricity or unavailable power supply
Use independent standby knob.In these embodiments, doctor needs to enable standby knob, by machine from automatically controlled pattern switching
For mechanical mode, and/or ensure before mechanical mode is switched to mechanical knob being set to the state that needs.
Occurring dead electricity when anesthetic gases is conveyed in critical medical procedure will cause confusion.Doctor is being seen for controlling together
When two sets of knobs occurs in a kind of gas, inconvenience may be felt and/or puzzlement is felt.In some embodiments of the application, when
When fluid flow control system is in automatically controlled pattern, Traffic selector is as knob is electric-controlled type, now standby flow selection
Device is retracted mode or is unavailable.Under unpowered state, or doctor's selection is when enabling back-up system, standby flow
Selector ejects or is available.
Switching valve equipment, mechanical operation valve, electronic type operation valve, controller, encoder, Traffic selector and/or sheet
Apply the number of other components of description according to available gas（Or liquid）Number depending on.In various anesthetic gases induction systems
In, individually oxygen, laughing gas and/or air can be controlled per gas all the way and/or pari passu to per gas all the way
It is controlled.For conveying anesthetic, using evaporator and one or more gas can be mixed use.
In a kind of embodiment, switching valve equipment can be by gas（Or liquid）Flow leads to mechanical stream from gas supply source
Control valve such as mechanical operation needle-valve, or electric-controlled type flow control valve such as electronic type proportioning valve is led to, this is depending on system
It is no to have electricity or whether enable back-up system.
If system is in automatically controlled pattern, the selected flow of coding, and the selected flow after coding is sent into controller.
Then, controller sends control signals to electronic type proportioning valve to obtain selected flow.Telescopic component makes standby flow
Control valve remains retracted mode.In addition, telescopic component can make standby flow control valve remain unavailable or nonfunctional shape
State.
If system is in unpowered state or doctor and enables back-up system, standby Traffic selector will be ejected,
Enable and/or otherwise used.Then the selected flow of Traffic selector will be changed mechanically to mechanical
Flow control valve such as needle-valve is operated, to realize the flow selected.
According to some embodiments, switching valve equipment may include normally open valve and normally close valve, alternatively to prevent to come from（Or
It is transported to）The gas flowing of mechanical operation needle-valve and electronic type proportioning valve.Switching valve equipment can pass through any valve and/or control
Equipment is realized, for example, realized by triple valve.
In some embodiments, needle-valve, the needle-valve combination electronic type stepper motor are used in mechanical flow control valve
Use can be considered electronic flow control valve.In other embodiments, Traffic selector include any number of knob, button,
Rotatable actuator, sliding block, and/or other analog and/or digitals selection equipment.In other embodiment, controller or
Control system can be achieved by the combination of any hardware, firmware, and/or software.For example, gate array can be programmed using field
（FPGA）Realize controller.In some embodiments, the electronic type control for transmitting a control signal to electronic flow control valve
Device processed is different from the other electron component in gas Flowrate Control System, such as microprocessor and other and display, touch-screen, number
According to the related electronic component such as storage, data cube computation.The raising of the reliability of electronic flow control can be by by electronic flow
Isolated from the other electron component of anesthetic gases conveying equipment, and/or using hardware rather than software mode come real control section
It is existing.
Although the application is that each embodiment and embodiment, wherein most are described with gas Flowrate Control System
Embodiment can be directly applied for or be applied to after changing any number of fluid, including various gases and liquid.Here as
The gas of the anesthetic gases conveying of gas example, such as oxygen, laughing gas and air, can pass through fluid flow control described herein
System processed is controlled, and the fluid flow control system can be described as gas Flowrate Control System.
Some equipment or framework used in embodiment disclosed in the present application are common equipment or framework, such as general meter
Calculation machine, computer programming instrument and technology, digital storage media and communication network.Computing device or other electronic controllers
It may include processor, such as microprocessor, microcontroller, logic circuit and/or similar device.Processor may include that dedicated processes are set
Standby such as application specific integrated circuit（ASIC）, programmable logic array（PAL）, programmable logic array（PLA）, PLD
（PLD）, FPGA or other customization and/or processing equipment.Computing device may also include machine-readable storage device, such as non-volatile
Property memory, static state RAM, dynamic ram, ROM, CD-ROM, disk, tape, magnetic card, light-card, flash memory or other machine-readable
Storage medium.The various aspects of some embodiments can be achieved by hardware, software, firmware or its combination.
Similar components are better understood in each embodiment of the application, accompanying drawing with reference to accompanying drawing generally with similar number
Word is marked.As shown in drawings or described, in disclosed each embodiment, each component can be given by a variety of different configurations
To arrange and design.In addition, the feature, structure or operation described by a kind of embodiment can be used for another embodiment
In, or a kind of feature described by embodiment, structure or operation can be with the feature described by another embodiment, knots
Structure or combination of features are used.To avoid the description to the application each side unclear, other embodiment to known structure,
Material or operation do not provide specific diagram or described.
Therefore, the embodiment of the application system as described below or method is not that limitation the application is claimed
Scope, and be only to represent possible embodiment.In addition, each step that method is related to need not perform in a designated order or
Even if person's order is performed, each step is also without Exactly-once.
Fig. 1 shows the structured flowchart of anesthetic gases induction system 100, and system includes being used to control oxygen 121, laughing gas
122 and the electronic flow control valve 111,112,113 and standby mechanical flow control valve 101,102,103 of air 123.
When being powered by AC power 160 and/or battery 161, one or more electronic flows can be used in anesthetic gases induction system
Selector is to control electronic flow control valve 101,102 and 103.Panel 179 and/or mainboard 175 can be passed through as needed
Change and/or change the power supply of input.Gas flow plate 150 may include various monitorings and/or control element, to electronic type prison
Survey, adjust, and/or control the gas flow in anesthetic gases induction system.
In some embodiments, anesthetic gases induction system may include various assemblies and/or by gas flow plate 150 with
Various assemblies are interacted.For example, gas flow plate 150 may include various FPGA, CPU, microprocessor, logic circuit, drive circuit,
Digital analog converter, analog-digital converter, drive circuit, motor driver, power switch, input equipment, optical sensor, vision refer to
Show device, display, electromagnetic switch, stepper motor, touch-screen, and/or ancillary equipment, or gas flow plate 150 can be with enumerating
These parts connection gone out.In addition, gas flow plate 150 may include position switch, LED, needle valve switch, gas source and/or
The option of other inputs, or gas flow plate 150 can be connected with these components.For example, doctor can be selected by electronic flow
Device is selected to be inputted.Electronic flow selector may include mechanical type rotating knob or rotary encoder.
When anesthetic gases induction system is in automatically controlled pattern, user can mechanically be grasped using electric-controlled type or selection
Make.When anesthetic gases induction system is in unpowered state, anesthetic gases induction system can be using mechanical.In automatically controlled pattern
When, three road gases are that oxygen 121, laughing gas 122 and air 123 flow through electronic flow control valve 111,112 and 113, oxygen ratio
Csr controller 125, and/or check valve 130 and flow sensor.During in mechanical mode, this three roads gas 121,122,123
Flow through standby mechanical flow control valve 101,102 and 103, oxygen proportion controller 125, and/or back-pressure valve 127.
In some embodiments, for the ratio of gas 121,122,123 needed for acquisition, user can be since zero delivery successively
Addition source gas notes the influence of the total flow of each road gas to total flow.In a kind of alternate embodiment, for needed for obtaining
Gas 121,122 and 123 ratio, user can be from " the initial state of oxygen 121（home state）" flow starts, then
Each road gas 121,122,123 is adjusted to obtain required flow.Oxygen proportion controller 125 can ensure that facing for oxygen-laughing gas
Bed safety ratio.Check valve 130 can prevent due to potentially from high pressure to low pressure caused by gas 121,122,123 adverse current.
In any flow control mode, three road gases 121,122,123 are flowed through after check valve 130, are combined as one
Airflow passes quantity meter 137, and measured by quantity meter.Anesthetic can be evaporated to gas by anesthetic gases evaporator 140
Body.Triple valve 135 can be used for guiding from standby mechanical flow control valve 101,102,103 and electronic flow control valve
111st, the gas flow of the only one valve in 112,113.Alternately, triple valve may include one or more normally open valves and/or
Normally close valve.Switching valve equipment can be used for substituting triple valve 135 and/or normally open valve and/or normally close valve.
During in automatically controlled pattern, the flow control selections related to standby mechanical flow control valve 101,102,103
Device is disabling, retracts, locked, and/or other unavailable modes.During in mechanical mode（Because dead electricity or user's selection are just entered
Enter mechanical mode）, the flow control selections device related to needle-valve 101,102,103 for enable, eject, unlocking, and/or it is other can
Use mode.Each component of anesthetic gases induction system 100 is shown in symbol table 190, is not described in detail here.In addition, anesthesia
The various assemblies that are used in gas delivery system, gas delivery system, liquid conveying system and/or other related systems, measurement
Equipment, monitoring device, and/or control device rise to, are added to, and/or replaced with the component of diagram system.
Fig. 2A is shown provided with the three mechanical flows control choosing for being respectively used to the flow for controlling oxygen, laughing gas and air
Select the anesthetic gases induction system 200 of device 250.Diagram anesthetic gases induction system 200 may include respiratory system 210, anesthesia gas
Other parts of evacuator body device 230, and/or anesthetic gases induction system.Anesthetic gases induction system 200 may include stroller 240
And/or wheel 245 is to increase portability.Electronic console 220 can show for doctor and be conveyed on flow and/or anesthetic gases
The information of journey.In addition, electronic console 220 can touch display, to allow doctor to select flow.
Fig. 2 B are shown controls choosing provided with the standby mechanical flow of two electronic flow control selections devices 251 and three
The anesthetic gases induction system 200 of device 260 is selected, electronic flow control selections device is used for for often selecting all the way in three road gases
Flow, standby mechanical flow control selections device be used to control respectively in this three roads gas per all the way.Shown in similar Fig. 2A
Embodiment, anesthetic gases induction system 200 include respiratory system 210, anesthetic gases evaporator 230, and/or anesthetic gases
Other parts in induction system.Anesthetic gases induction system 200 may include that stroller 240 and/or wheel 245 are portable to increase
Property.Electronic console 220 can show the information on flow and/or anesthetic gases course of conveying for doctor.In addition, electronical display
Device 220 can touch display, to allow doctor to select flow.
When anesthetic gases induction system 299 is in automatically controlled pattern, three standby mechanical flow control selections devices 260 are protected
Hold retraction and/or down state.When anesthetic gases induction system 299 enters mechanical mode（For example because power down or user select
Select）, these three standby mechanical flow control selections devices 260 are by ejection, unblock, and/or are other available means.As before
State, various internal structures, switch, normally open valve, normally close valve, triple valve, and/or other components can be used for regulation anesthetic gases conveying
Gas flow in system 299, it is to be in mechanical mode or automatically controlled pattern that this, which depends on system,.
Fig. 3 shows the feature of the control panel 300 of anesthetic gases induction system, including for selectively controlling
Two electronic flow control selections devices 315 and 317 of oxygen and laughing gas or oxygen and air.As illustrated, anesthetic gases is defeated
Send system include panel 330, for show the various telemetries related to patient, and gas flow correlation information, and/or
The information related to the conveying of one or more anesthetic.Different importations 340 can be used for change panel 330 display and/
Or control anesthetic gases induction system.
At first position, selecting switch 310 can allow doctor to pass through the corresponding He of electronic flow control selections device 315
The flow of 317 control oxygen and laughing gas.At the second place, selecting switch 310 can allow doctor to be controlled by corresponding flow
Selector 315 and 317 controls the flow of oxygen and air.According to the position of selecting switch 310, various flow monitoring equipment and ratio
Example measuring apparatus 320,325 and 327 may indicate that the flow of the combination of the flow and/or multipath gas of one or more gas.One
In a little embodiments, the importation aided in and output par, c 350 can be used to input and export oxygen and/or other gases.
Although illustrated embodiment is illustrated that two electronic flow selectors 315 and 317, arbitrary number can be used
Traffic selector and any road gas.For example, flow control system be configurable to allow to all the way, two tunnels, three tunnels, four
Road ... or N roads gas or liquid carry out electronic type control and standby mechanical control.In some embodiments, one
Traffic selector above（Such as knob, switch, dial plate, sliding block, switch）Available for flow of the control with gas all the way.It is additional
Selecting switch 310 and/or multiposition selecting switch can be used to control each road gas, each road gas be controlled by any it is corresponding
Flow control selections knob.Traffic selector is included and/or using any analog or digital selection mechanism, including shown in each figure
Knob, to select flow.
Fig. 4 shows the overall picture of the control panel 400 of anesthetic gases induction system, including for independently controlling three road gas
The standby mechanical flow control section 481,482 and 483 of body.When anesthetic gases induction system is that electric-controlled type and user do not have
Selection is mechanical, and anesthetic gases induction system is in automatically controlled pattern.During in automatically controlled pattern, according to the selection of selecting switch, make
Oxygen and laughing gas or oxygen and air are controlled with two electronic flow control selections devices 415 and 417.Electronic console 430
The information related to the flow of one or more gas, anesthetic information, and/or patient's telemetry can be shown.It can be used each
Plant touch importation 440.Auxiliary control panel 450 can be used for carrying out one or more gas for being supplied to auxiliary equipment
Operation.
Selected mechanically when anesthetic gases induction system is in unpowered state and/or user, anesthetic gases delivery system
System is in mechanical mode.During in mechanical mode, by mechanical panel 455 control one or more gas flow and/or
The conveying quantity of anesthetic.Under unpowered state, electronic console 430, touch importation 440, electronic flow control
Selector 415 and 417 and other electron component processed are unavailable, when selecting mechanical under "on" position, in these elements
One or more elements are unavailable and/or are other disabling modes.
Mechanical panel 455 includes summation flowmeter indicator 490, mechanical selector 485（Such as spring-loaded plunger）And one or
Multiple mechanical operation flow control selections devices 481,482,483.According to some embodiments, the control choosing of mechanical operation flow
Select device and can be used for operation per road available gas or per the available critical gas in road.In some embodiments, anesthetic gases delivery system
System be in automatically controlled pattern when, mechanical operation flow control selections device 481,482,483 for it is unavailable, retract, locking, and/or
Other inoperable modes；During in mechanical mode, mechanical operation flow control selections device 481,482,483 is available, bullet
Go out, unlock, and/or other operable modes.
Fig. 5 illustrated embodiments 500 show the standby mechanical flow control selections device in retracted mode 501
510th, 520,530 and in ejection state standby mechanical flow control selections device 510,520,530.Illustrate embodiment party
Formula includes perspective view（The figure of 501 and 502 tops）And front view（The figure of 501 and 502 lower sections）.As illustrated, total flow is indicated
Device 550 is used for the flow for indicating one or more gas.Mechanical selector 540 enables user by "on" position
Anesthetic gases induction system enters mechanical mode.When system from "on" position switchs to unpowered state, system is automatically into machinery
Pattern.During in automatically controlled pattern, flow control selections device 510,520 and 530 remains retracted mode（501）, because it is not dashed forward
Go out, unavailable and/or other inoperable modes, so as to will not make troubles or perplex to user.During in mechanical mode, stream
Control selections device 510,520 and 530 is measured to eject（502）, user is reminded by protrusion, available and/or other modes, user is informed
The flow of one or more gas can be controlled with it.
In some embodiments, the default location of mechanical flow control selections device is on 0 liter/min.For example, with
The default location of the related mechanical flow control selections device of the flow of oxygen is 2 liters/min of initial state, so that when anesthesia
Gas delivery system in use power down when, can continue as patient provide critical gas.
Fig. 6 shows another view of the control panel of anesthetic gases induction system, including electronic flow control choosing
Select device 615,617 and standby mechanical flow control selections device 610,620,630.During in automatically controlled pattern, standby machinery
Formula flow control selections device 610,620 and 630 is retracts, locked, unavailable and/or other inoperable states.Two-way or with
The flow of upper gas can be controlled by electronic flow control selections device 615 and 617.Optimization indicator 612 is indicated by electricity
The total gas flow rate that minor control Traffic selector 615 and 617 is selected.
Because dead electricity and/or response user select mechanical selector 640, anesthetic gases induction system enters mechanical mould
Formula.In a kind of embodiment, mechanical selector 640 includes plunger, for triggering electromagnetic switch or motor to eject machinery
Formula flow control selections device 610,620 and 630.During in mechanical mode, flow indicator 650 is indicated by standby mechanical stream
The total gas flow rate that amount control selections device 610,620,630 is selected.
Fig. 7 is shown for the three mechanical flow control selections devices 710,720,730 of optionally ejecting or retract
Mechanical device 700.According to some embodiments, mechanical device 700 is arranged on anesthetic gases induction system and/or other fluid streams
In the shell of amount control system.The application combination anesthetic gases induction system and/or other fluid flow control systems describe machine
The embodiment of tool device 700 and related embodiment.However, mechanical device 700 can be used in any system and equipment, its
In, with selectively eject and retract with respond user selection and/or power availability button, knob or other selectors
Can be more useful.
As illustrated, telescopic component 760 is fitted close with Traffic selector component 770.Traffic selector component includes one
It is individual or multiple（It is illustrated as 3）Mechanical flow control selections device 710,720,730.Knob sheath 740 can be prevented in retraction
The mechanical flow control selections device 710,720,730 of state is triggered.Telescopic component 760 is used for by by Traffic selector group
Part switchs to ejected position from retracted position, optionally ejects Traffic selector component 770.In addition, telescopic component 760 is used for bullet
Outflow selector assembly 770 is interrupted with power source-responsive.
Fig. 8 is shown for selectively ejecting Traffic selector component（It is not shown）Telescopic component 800.Flexible group
Part 800 includes buck plate 823, mechanical device is fixedly attached into Anesthesia machine（Or other equipment）.Backbone block 815 and electromagnetism
Switch 819 is arranged on bottom plate pedestal 817.Motor 810 is installed on bottom plate pedestal 817 by motor fixing seat 812.It is emergent to press
Button（Mechanical selector）850 are arranged on buck plate 823, for the parts being operatively engaged in backbone block, to take off
From the springlock being connected with electromagnetic switch, that is to say, that telescopic component can directly be triggered after emergency button 850 and select flow by pressing
Select device ejection.
Fig. 9 show for control three road gas flows three mechanical flow control selections devices 910,920,930 and
The top view 900 of related needle valve assembly 950,951,952.Illustrate in each embodiment, mechanical flow control selections device
910th, 920,930 be turn knob.In alternative embodiment, mechanical flow control selections device can be used to directly adjust
Any type of mechanical control selector of the flow of whole mechanical flow control valve.For example, mechanical flow control selections
Device 910,920,930 can be turn knob, gradual change knob, dial, sliding block, rotary switch and like.
Knob sheath 940 can prevent each quilt of mechanical flow control selections device 910,920,930 in retracted mode
Triggering, prevents the axial movement relative to buck plate, and can protect mechanical flow control selections device 910,920,930.
Figure 10 shows the component 1100 including balladeur train 1155 and cross bar 1165, for can by Traffic selector component 1170
It is slidably attached to telescopic component（It is not shown）.As illustrated, Traffic selector component 1170 is including one or more（Diagram
For 3）Mechanical flow control selections device 1110,1120 and 1130.Knob sheath 1140 is used to prevent in retracted mode
Mechanical flow control selections device 1110,1120,1130 is triggered, and prevents it from being axially moved relative to buck plate, and be used for
Protect mechanical flow control selections device 1110,1120,1130.
Balladeur train 1155 and the component of cross bar 1165 are used to Traffic selector component 1170 being slidably connected to telescopic component,
So as to by the way that balladeur train 1155 is translated along cross bar 1165 so that telescopic component slideably ejects Traffic selector component.Substitute
Embodiment in, balladeur train 1155 and cross bar can be substituted relative to other mechanisms that another equipment is moved using by an equipment
1165 components.
Figure 11 shows the sectional view of Traffic selector component 1500, and wherein detection switch 1550 is axially floated by detecting
The position of axle bush 1555 determines whether mechanical needle-valve 1551 is initial state.According to some embodiments, machinery can adjust
Formula needle-valve 1551 is to obtain between the completely closed state and the full open position of gas maximum flow flowed without gas
Any flow.In some embodiments, when flow control selections device 1520 is retracted, needle-valve enters initial state.Initial state
To preset default traffic.
When flow control selections device 1520 is retracted, triple valve is used（Or other switching valve equipment）It is any current to prevent
The gas just flowed flows through.Therefore, when ejecting flow control selections device 1520, with mechanical needle-valve 1551 is allowed by automatic
The gas flowing of beginning state respective numbers.For example, initial state is 0 liter/min of 2 liters/min of oxygen, laughing gas and/or air
Flow.Every kind of available gas can have different possible initial state flows.
Figure 12 shows Traffic selector component 1600 and position detector（Detection switch 1671,1672,1673）It is another
One view, position detector is used for the relative position for selectively detecting valve rod 1691,1692 and 1693.Position detector
1671st, 1672,1673 be used for detect its whether with the protrusion on groove 1661,1662,1663（Such as protrusion 1663）Engagement, groove
1661st, 1662,1663 are located on bushing 1665,1666,1667.
In illustrated embodiment, needle-valve 1651 and 1652 is completely closed, and valve rod 1691 and 1692 is entirely facing needle-valve
1651 and 1652 translations.Therefore, position detector 1671 and 1672 and raised projections portion（It is not shown）Engagement, and detect pin
Valve 1651 and 1652 is to completely close.Valve rod 1693 is entirely facing Traffic selector 1630 and translated so that needle-valve 1653 is beaten completely
Open.Because position detector 1673 is not engaged with jut 1663, so as to detect that needle-valve 1653 is not completely turned off.
Figure 12 also show the possibility shape of the valve rod of three kinds of embodiments.First valve rod 1693 be hexagon, for stream
The hexagon cavity 1683 of amount selector 1630 is engaged.Second valve rod 1692 is rectangle, for the square with Traffic selector 1620
Shape cavity 1682 is engaged.3rd valve rod 1693 is for circle and with two protrusions, the circle of protrusion and Traffic selector 1610
Corresponding inclusion engagement in shape cavity 1682.According to some embodiments, cavity 1681,1682,1683 rotatable engagement valves
Bar 1691,1692,1693, and valve rod 1691,1692,1693 is axially moved relative to Traffic selector 1610,1620,1630
It is dynamic.In some embodiments, knob sheath 1640 is used to prevent Traffic selector 1610,1620,1630 from moving axially.
In some embodiments, locking mechanism can be used（It is not shown）So as to selectively prevent needle-valve 1651,1652,
1653 are triggered.When Traffic selector 1610,1620,1630 is ejected, locking mechanism automatic unlocking.Alternately, lock
Mechanism can be locked and unlocked by user.
It has been observed that when flow control selections device is retracted, using triple valve（Or other switching valve equipment）Prevent any work as
The preceding gas just flowed flows through.In this embodiment, during ejection flow control selections device assembly, allow automatic and needle-valve
The gas flowing of initial state respective numbers.For example, initial state is 0 liter/min of 2 liters/min of oxygen, laughing gas and/or air
Flow.Every kind of available gas can have different possible initial state flows.
It has been observed that ejected and retraction needle valve assembly in each embodiment due to needing, therefore, each embodiment bag of the application
Following part composition is included：Retractor device 4, detection means 5, control centre, emergency button 1 and needle-valve equipment 3 are constituted, and its is mutual
As shown in figure 13, wherein the annexation between retractor device 4 and needle-valve equipment 3 is as shown in figure 14 for relation.Retractor device 4, inspection
Survey device 5 and control centre is housed in Anesthesia machine main body cover.In embodiment, control centre can be fixed on anesthesia
On circuit board in owner's body case, it can be that Anesthesia machine host computer control center can also be an independent controller, than
Such as CPU or FPGA controller；Detection means 5 is used for the position for detecting needle-valve equipment 3 and detection signal is fed back into control centre,
In embodiment, detection means 5 is placed near the pushing block of retractor device 4, can be by the detector such as position switch or optocoupler
Part is replaced；Needle-valve equipment 3 is fixed on the moving mass 11 of retractor device 4, can drive realization movable by retractor device 4, control
Center processed can send control signal to retractor device 4 and control its expanding-contracting action, emergency button 1 directly to trigger flexible dress after pressing
Putting 4 ejects needle-valve equipment 3.Needle-valve 3 includes gas connection 6, needle-valve knob 7, knob sheath 8, needle-valve fixed seat 9, needle-valve valve
Body 10；Gas connection 6, needle valve body 10 and knob sheath 8 are each attached in needle-valve fixed seat 9, and needle-valve knob 7 is fixed on knob
It can be rotated in sheath 8 with hand, as shown in figure 14, three needle-valves arranged side by side control the flow of three road gases respectively（Oxygen, air and
Laughing gas）；Retractor device 4 includes moving mass 11, motor 12 and pedestal 13；Motor 12 is fixed on pedestal 13, and moving mass 11 is fixed
Onto the axle of motor 12, moving mass 11 can be moved back and forth under the driving of motor 12.
In Telescopic movable needle valve assembly in embodiment, needle-valve ejection can be operated for user as needed, when
Need not when can be withdrawn into guidance panel and stash, can not only ensure the function of standby needle-valve but also be avoided that maloperation,
And the salubrious succinct of guidance panel can be kept, while the standby needle-valve can provide three road gases simultaneously（Oxygen, air and laugh at
Gas）Control, compensate for the deficiency of all-electronin flowmeter.
According to any embodiment described herein, gas flow system can be used for many occasions.Illustrate each reality
Apply in mode, gas Flowrate Control System is shown as a part for anesthetic gases induction system.In these embodiments, one
The combination gas stream injection of road or multipath gas such as inputs anesthetic with other infusions by evaporator, then to anesthesia
The process that agent and/or one or more gas are transported to patient end is controlled.
The application is achieved by each embodiment including preferred forms.However, those skilled in the art will recognize
Know, in the case where not departing from scope disclosed in the present application, can make changes and modifications.Although each embodiment has shown that
The principle of the application, still, for suitable for specific environment and/or operational requirements, in the principle and the feelings of scope for not departing from the application
, can many modifications may be made to the structure of the application, layout, ratio, parts part, material and component etc. under condition.The application's
Scope covers the NM of these and other and is altered or modified.
Aforementioned specification has been described for various embodiments.However, it will be understood by one of ordinary skill in the art that, can be not
Various modifications and changes may be made under disengaging the application scope.Therefore, the application be construed as it is illustrative and not restrictive,
And scope of the present application covers all such modifications.Similarly, the beneficial effect of each embodiment, further advantage and problem
Solution above having been described.But, these beneficial effects, advantage or the solution used or the scheme highlighted
It should not be construed as being important, required or necessary feature or feature.It is thus impossible to assert the specific implementation office of the application
It is limited to these explanations.
Claims (19)
1. a kind of fluid flow control system, it is characterised in that including：
Electronic flow control valve, for selectively receiving the first fluid from first fluid input；
Electronic flow selector, for first from first fluid input to flowing through the electronic flow control valve
The flow of fluid is selected；
Controller, for transmission of control signals to the electronic flow control valve to cause the electronic flow control valve to hold
Perhaps the flow that described first fluid is selected with the electronic flow selector is flowed；
Mechanical flow control valve, for selectively receiving the first fluid from the first fluid input；
Mechanical flow control selections device, for flowing through being inputted from the first fluid for the mechanical flow control valve
The flow of the first fluid at end is controlled；With
Trigger mechanism, is used for
When the fluid flow control system is in automatically controlled pattern, mechanical flow control selections device described in quiescing；With
And
When the fluid flow control system is in mechanical mode, the operation of the mechanical flow control selections device is enabled.
2. fluid flow control system as claimed in claim 1, it is characterised in that the trigger mechanism includes ejection part,
For when the fluid flow control system is in mechanical mode, ejecting the mechanical flow control selections device；When described
When fluid flow control system is in automatically controlled pattern, the mechanical flow control selections device of retracting；
And/or, the trigger mechanism include lock control part, for when the fluid flow control system be in automatically controlled pattern when,
The mechanical flow control selections device is locked to prevent adjustment；When the fluid flow control system is in mechanical mode,
The mechanical flow control selections device is unlocked to be adjusted.
3. fluid flow control system as claimed in claim 1, it is characterised in that also including switching valve equipment, be used for
When the fluid flow control system is in automatically controlled pattern, the first fluid is prevented to flow through the mechanical flow control
Valve processed, and allow the first fluid to flow through the electronic flow control valve；
When the fluid flow control system is in mechanical mode, it is allowed to which the first fluid flows through the mechanical flow control
Valve processed, and prevent the first fluid from flowing through the electronic flow control valve.
4. fluid flow control system as claimed in claim 3, it is characterised in that the switching valve equipment includes triple valve；
And/or, the switching valve equipment includes：
Normally open valve, for when the fluid flow control system is in mechanical mode, it is allowed to which the first fluid flows through described
Mechanical flow control valve；With
Normally close valve, for when the fluid flow control system is in mechanical mode, preventing the first fluid from flowing through described
Electronic flow control valve.
5. fluid flow control system as claimed in claim 1, it is characterised in that also including evaporator, for by anesthetic
The first fluid is mixed into, wherein the first fluid includes gas.
6. fluid flow control system as claimed in claim 1, it is characterised in that the electronic flow control valve includes electricity
Minor proportioning valve；And/or, the mechanical flow control valve includes needle-valve or turn knob.
7. fluid flow control system as claimed in claim 1, it is characterised in that the mechanical flow control valve includes pin
Valve, the electronic flow control valve includes being used for the stepper motor that electronic type controls the needle-valve.
8. fluid flow control system as claimed in claim 1, it is characterised in that the controller includes hardware control,
Or the controller includes field programmable gate array.
9. fluid flow control system as claimed in claim 1, it is characterised in that the first fluid includes oxygen, laughing gas
With one kind in air.
10. fluid flow control system as claimed in claim 1, it is characterised in that described also including manually operated selector
Manually operated selector, which is selected when using, will make the fluid flow control system enter mechanical mode.
11. a kind of method that standby manually controls fluid flow is provided in flow control system, it is characterised in that including：
Detect that flow control system is in automatically controlled pattern；
Receive the fluid flow selected by electronic flow control selections device；
The fluid flow of selection received is encoded to by electric signal by encoder；
The control signal that is produced by controller is sent to electronic flow control valve, the electronic flow control valve is according to having compiled
The fluid flow of code, it is allowed to traffic flow of the fluid to select；
The fluid is prevented to flow through mechanical flow control valve；
The quiescing mechanical flow control selections device related to the mechanical flow control valve；And
The instruction for entering mechanical mode is received, then：
The fluid is prevented to flow through the electronic flow control valve；
Enable the operation of the mechanical flow control selections device；With
The fluid flow is mechanically adjusted by the mechanical flow control valve, the mechanical flow controlled with responding
The adjustment of selector.
12. method as claimed in claim 11, it is characterised in that quiescing mechanical flow control selections device includes：When
When the flow control system is in automatically controlled pattern, the mechanical flow control selections device of retracting；And
Enabling the operation of the mechanical flow control selections device includes：When the flow control system is in mechanical mode,
Eject the mechanical flow control selections device.
13. method as claimed in claim 11, it is characterised in that quiescing mechanical flow control selections device includes：When
When the flow control system is in automatically controlled pattern, lock the mechanical flow control selections device to prevent adjustment；And
Enabling the operation of the mechanical flow control selections device includes：When the flow control system is in mechanical mode,
Mechanical flow control selections device is unlocked to be adjusted.
14. method as claimed in claim 11, it is characterised in that prevent fluid when flow control system is in mechanical mode
Flow through electronic flow control valve and prevent fluid from flowing through mechanical flow control when flow control system is in automatically controlled pattern
Valve processed, is realized by switching valve equipment, and the switching valve equipment includes at least one in triple valve, normally open valve and normally close valve
It is individual.
15. method as claimed in claim 11, it is characterised in that the fluid includes gas, methods described is also included fiber crops
Liquor-saturated dose of evaporation is mixed into the gas.
16. method as claimed in claim 11, it is characterised in that the electronic flow control valve includes electronic type ratio
Valve；And/or, the mechanical flow control valve includes needle-valve or turn knob.
17. method as claimed in claim 11, it is characterised in that the mechanical flow control valve includes needle-valve, the electricity
Minor flow control valve includes being used for the stepper motor that electronic type controls the needle-valve.
18. method as claimed in claim 11, it is characterised in that the fluid includes one kind in oxygen, laughing gas and air.
19. method as claimed in claim 11, it is characterised in that the instruction that the reception enters mechanical mode includes：Receive
Instruction from manually operated selector, the manually operated selector is used to make the flow control system enter mechanical mould
Formula；
Or, the instruction received into mechanical mode includes：Determine that the flow control system is in non-power status；
Or the instruction received into mechanical mode includes：Determine the automatically controlled mode error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453845.7A CN103809622B (en) | 2012-11-13 | 2012-11-13 | Standby electric-controlled type flow control system and method are used as using mechanical control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453845.7A CN103809622B (en) | 2012-11-13 | 2012-11-13 | Standby electric-controlled type flow control system and method are used as using mechanical control |
Publications (2)
| Publication Number | Publication Date |
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| CN103809622A CN103809622A (en) | 2014-05-21 |
| CN103809622B true CN103809622B (en) | 2017-07-28 |
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| CN201210453845.7A Active CN103809622B (en) | 2012-11-13 | 2012-11-13 | Standby electric-controlled type flow control system and method are used as using mechanical control |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902432A (en) * | 2015-12-23 | 2017-06-30 | 北京谊安医疗系统股份有限公司 | A kind of safe oxygen device and its control method |
| CN106902433B (en) * | 2015-12-23 | 2019-11-15 | 北京谊安医疗系统股份有限公司 | A kind of electronic flow meter systems and its control method |
| CN109771767B (en) * | 2019-01-29 | 2020-06-26 | 深圳市科曼医疗设备有限公司 | Pneumatic standby flow meter control system of anesthesia machine |
| EP4085956B1 (en) * | 2019-12-30 | 2024-08-07 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Backup flow control system and method applicable to anesthesia machine |
| CN113117194B (en) * | 2019-12-30 | 2022-12-23 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine |
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| US4797820A (en) * | 1986-07-28 | 1989-01-10 | Ansan Industries Limited | Programmable flow control valve unit with clock, program, automatic, manual, and repeat modes |
| US5603315A (en) * | 1995-08-14 | 1997-02-18 | Reliable Engineering | Multiple mode oxygen delivery system |
| JPH1053018A (en) * | 1996-05-24 | 1998-02-24 | Mercedes Benz Ag | Operating device for automobile air conditioner |
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| CN103809622A (en) | 2014-05-21 |
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Effective date of registration: 20180620 Address after: 518057 the 1-4 floor of MINDRAY building, science and technology south twelve Road, Nanshan District high tech Industrial Park, Shenzhen, Guangdong. Co-patentee after: Shenzhen MINDRAY Technology Co., Ltd. Patentee after: Shenzhen Mairui Biotherapeutic Electronic Co., Ltd. Address before: 518057 MINDRAY science and technology south twelve road MINDRAY high tech Industrial Park, Shenzhen, Guangdong Patentee before: Shenzhen Mairui Biotherapeutic Electronic Co., Ltd. |
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