CN103809619B - Fluid Flow Control System - Google Patents
Fluid Flow Control System Download PDFInfo
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- CN103809619B CN103809619B CN201210452514.1A CN201210452514A CN103809619B CN 103809619 B CN103809619 B CN 103809619B CN 201210452514 A CN201210452514 A CN 201210452514A CN 103809619 B CN103809619 B CN 103809619B
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Abstract
This application involves fluid flow control systems, the flow of two or more rotatable Traffic selector control multiple fluids can be used, electronic code, then the flow by controller based on the selection signal control corresponding fluids after electronic code are carried out to the selection signal that rotatable Traffic selector exports by rotary encoder.One of fluid can be oxygen, and fluid may also include the balanced gas selected from nitrous oxide or air.
Description
Technical field
Present application relates generally to the systems for the flowing that fluid is controlled by electronic control mode, in particular to electronic flow
Selector, the selector are suitable for the operation mode of plurality of optional, and can simulate Manual mechanical flow and adjust mode of operation.
Summary of the invention
In the various application examples of modern anesthesia respiration Transmission system, oxygen, nitrous oxide, air etc. are fresh
The flow of gas is to be controlled by operator by electronically or manually mode.In various embodiments, may be arranged one or
The rotatable Traffic selector of multiple such as rotatable knobs is used in power-up state using the stream for electronically controlling gas
Amount.Anesthesia Transmission system may also include spare manual overvide, for controlling one or more gases in power-down state
Flow.In one embodiment, it is selected using the combination of triple valve and/or normally open valve and normally close valve from electronic control
The air-flow of proportioning valve or manual needle valve.Valve module, Traffic selector and location detection system and its various possible modes of texturing
It is all applied in various flow control systems.
In various embodiments, when fluid flow control system is in power-up state, triple valve or other turn to valve systems
Fluid is allowed to be transmitted to patient from electronically controlled electronic proportioning valve.When fluid flow control system is in power-down state or selection
When manually controlling, triple valve allows fluid to be supplied to patient from the needle-valve manually controlled.Optionally, turning to valve system can wrap
Normally opened and normally close valve combination is included to be used cooperatively to replace the triple valve, or with triple valve.In certain embodiments, turn
It can be between fluid source and control valve for fluids to valve system.In a further embodiment, fluid control can be located at by turning to valve system
Between valve and fluid exit processed.
The configurable control valve for fluids of proportioning valve that is such as controlled electronically is selectively to receive the fluid from fluid source.
Electronic flow selector allows operator to pass through the flow of electronic control valve selection first fluid.From the point of view of user, electricity
Sub- Traffic selector is approximate with the mechanical control handle function of needle-valve.For example, user can clockwise or counterclockwise knob with
Increase or decrease the flow of particular fluid.The selection that electronic flow selector generates can be carried out electronic code simultaneously by rotary encoder
The selection of coding is transmitted to electronic controller.Electronic controller can transmit control signals to electronic flow control valve, with base
In the flow for the selection control fluid that electronic flow selector generates.
As be shown in the examples, electronic flow control valve may include electronic proportioning valve, electronic flow selector may include by
The rotation button that user can be manually rotated.Optionally, electronic flow selector may include electronics and/or the simulation of various adjoint encoders
Any type in selector.For example, sliding block can be adjusted between 0 flow point and 100% flow point, sliding encoder can
Electronic code is carried out to the selection that the sliding block generates.
In certain embodiments, one or more individually electronic flow control valves can be used to control the stream of every kind of fluid
Amount.For example, the first electronic flow control valve can control the flow of oxygen.Second electronic flow control valve can control nitrous oxide
Flow.Third electronic flow control valve can control the flow of air.4th electronic flow control valve can control the 4th kind of gas
Flow.
Similarly, each electronic flow control valve can be controlled by individual electronic flow selector.Optionally, it may be selected
Property one or more electronic flow selectors are distributed to control two or more electronic flow control valves.For example, system can
Including three electronic flow control valves, one is used for oxygen, and one is used for air, and one is used for nitrous oxide.System can be only
Using two electronic flow selectors, one of them is optionally used in control air mass flow or nitrous oxide flow,
Another distributes to the flow of control oxygen.Arbitrary electronic flow selector is fixable to be distributed or selectively distributes to control
Make the flow of any one or more available fluids.
In certain embodiments, two electronic flow selectors can be used selectively to control oxygen and an oxidation in system
Phenodiazine, alternatively, oxygen and air.Traffic selector can be used in direct flow control model and use first in this mode
Electronic flow selector directly adjusts the flow of oxygen, directly adjusts nitrous oxide or sky using the second electronic flow selector
The flow of gas.Flow, the total flow, two kinds of gas of the selection of every kind of gas can be shown with the associated numeric display unit of selected flow
The ratio of body, relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage etc..
Traffic selector can additionally, selectively or alternatively be used in total flow control model to be made in this mode
Total stream of the oxygen of selected balanced gas (air or nitrous oxide) and conveying is adjusted with the first electronic flow selector
Amount, and it is dense using the oxygen that the control of the second electronic flow selector is mixed with selected balanced gas (air or nitrous oxide)
Degree.The ratio can be obtained by calculation and with number or the shape of the flowtube (such as variable area flowmeter) of mechanical system control
Formula is patterned/visualization display.Digitlization display can be shown and every kind of single gas feed flow (such as liter/min) pass
The numerical value of connection.In various embodiments, number display can show total flow, the ratio of two kinds of gas, relative to optimal flux
Total flow, and/or other numerical value, chart, figure, percentage, and with the associated similar information of flow.
In some embodiments, fluid flow control system further includes electronic display unit, when in total flow control model
When, for showing that the first numerical value of the total flow for representing the first fluid and second fluid, and display represent described second
Second value of the flow of fluid relative to the percentage of total flow.In some embodiments, fluid flow control system further includes
Electronic display unit, when being in direct flow control model, for showing the first numerical value for representing the first fluid flow, with
And display represents the second value of the second fluid flow.In some embodiments, fluid flow control system further includes electronics
Display device, for showing the virtual flowtube for representing the flow of one of the first fluid and second fluid, the virtual stream
The variable area flowmeter of buret has simulation buoy.
Other than electronic control valve, configurable one or more (spare) mechanical flow control valve is available to control every kind
The flow of fluid.For example, single needle-valve can be used to carry out every kind of Mechanical course can use the flow of fluid.It can be triggered by operator all
As the manual flow selector of knob or sliding block carrys out the flow that machinery adjustment passes through each needle-valve.In certain embodiments, when being
When system is in power-up state, manual flow selector may be deactivated or cancel to prevent from adjusting flow by it, to ensure
The normal condition of energization lower adjusts flow by electronic control valve, excludes the operation interference of stand-by machine flow control valve.
In power-up state, one or more electronic flow selector can adjust by one or more electronic flow controls
Valve controls the flows of one or more fluids.In power-up state, stand-by machine flow control valve can be deactivated/deactivate, with resistance
Only pass through its mixing to patient's supply fluid or prevention fluid.In addition, in power-up state, with the stand-by machine flow control valve
Associated manual flow selector can be deactivated or cancel to prevent from accidentally adjusting flow by stand-by machine flow control valve.
In power-down state, or manual priority control is selected (in power-up state), electronic flow control valve can be deactivated/stop
With to prevent through its mixing to patient's supply fluid or prevention fluid.Manual flow selector can by user select activation/
Pop-up is to allow operator to directly control by stand-by machine flow control valve the flow of one or more fluids.
In certain embodiments, when manual flow selector withdraw deactivate when, once such as power up or system resetting,
The flow of each stand-by machine flow control valve can be reset to ground state, will be automatic when entering power-down state so as to lower subsystem
Use the predetermined gas flow of ground state institute.
In one embodiment, electronic flow control valve may include electronic control stepper motor, for passing through such as needle-valve
Mechanical flow control valve adjust the flow of fluid.In various examples provided by the present invention, fluid can be described as gas, all
Such as oxygen, nitrous oxide, and/or air.But in combination with system and method described herein, it is a variety of more to be applied to other
The liquid and/or gas of sample.
Detailed description of the invention
Fig. 1 show the Anesthesia machine of one embodiment of the present invention, is configured with three manual flow selectors, Mei Gefen
It Kong Zhi not oxygen, nitrous oxide and air.
Fig. 2 show the Anesthesia machine of another embodiment of the present invention, configures two electronic flow selectors, may be selected
Control to property each gas in three kinds of gases；And three alternative stand-by machine flow controls popped up or retract
Device, for controlling each gas in three kinds of gases.
Fig. 3 show the present invention it is a kind of anaesthetize Transmission system schematic diagram, be configured with control oxygen, nitrous oxide and
The electronic control unit of air mass flow and spare manual overvide.
Fig. 4 A show a kind of close-up view for anaesthetizing Transmission system control panel comprising two electronic flow selectors,
Optionally in directly controlling oxygen and nitrous oxide or oxygen and air with direct flow control model.
Fig. 4 B show a kind of control panel of Anesthesia machine, further includes two for the control of direct flow control model
The electronics sliding block of gas flow.
Fig. 5 A show a kind of close-up view of Anesthesia machine control panel, including two electronic flow selectors, alternative
Ground is used to control the oxygen ratio in the mixing total flow of oxygen and nitrous oxide or air.
Fig. 5 B show a kind of control panel of Anesthesia machine, further includes for controlling gas stream with total flow control model
Two electronics sliding blocks of amount.
Fig. 6 show a kind of wide-angle view of Anesthesia machine control panel comprising dual-mode electric Traffic selector and standby
With mechanical flow control device, for independently controlling the flow of three kinds of gas.
Specific embodiment
Electronic flow control valve, for example, electronic control proportioning valve, can be used for control come fluid source fluid circulation or
Flow.Electronic flow selector allows operator to pass through the flow of electronic control valve selection first fluid.Come from user perspective
It sees, the electronic flow selector is functionally similar with the control handle of mechanical needle-valve.For example, user can revolve clockwise or counterclockwise
Button is rotated to increase or decrease the flow of particular fluid.The selection that electronic flow selector generates can be carried out electricity by rotary encoder
Son encodes and the selection of coding is transmitted to electronic controller.Electronic controller can transmit control signals to electronic flow control
Valve, with the flow of the selection control fluid generated based on electronic flow selector.
One or more electronic flow selectors can be selectively allocated in the two or more electronic flow controls of control
Valve.For example, system may include three electronic flow control valves, one is used for oxygen, and one is used for air, another is used for one
Nitrous oxide.Two electronic flow selectors can be used only in the system, one of them can be selectively used for the stream of control air
The flow of amount or nitrous oxide, and another then distributes the flow for controlling oxygen.Any electronic flow selector can be consolidated
Fixed distribution is optionally distributed to control the flow of any one or more available fluid.
In certain embodiments, two electronic flow selectors can be used selectively to control oxygen and an oxidation in system
The flow or oxygen of phenodiazine and the flow of air.Direct flow control model can be used using Traffic selector, wherein using the
One electronic flow selector directly adjusts nitrous oxide or sky using second flow selector directly to adjust the flow of oxygen
The flow of gas.The selection flow, total flow, two kinds of gas of every kind of gas can be shown with the associated numeric display unit of selected flow
The ratio of body is associated with relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage and with flow
Similar information.
Traffic selector can additionally, selectively or alternatively be used in total flow control model to be made in this mode
Total stream of the oxygen of selected balanced gas (air or nitrous oxide) and conveying is adjusted with the first electronic flow selector
Amount, and it is dense using the oxygen that the control of the second electronic flow selector is mixed with selected balanced gas (air or nitrous oxide)
Degree.The ratio can be calculated and (such as electronical display is similar to variable area stream with the flowtube of number or mechanical system control
Meter) form be patterned display.Digital display device can show with every kind of single gas feed flow (such as rise/
Minute) associated numerical value.In various embodiments, numeric display unit can show total flow, the ratio of two kinds of gas, for most
The total flow of excellent flow, and/or other numerical value, chart, figure, percentage, and with the associated similar information of flow.
Although electronic flow controls the transmission that can be beneficial to anesthetic gases, may also may require that in some cases mechanical standby
With the demand of control.For example, anesthetic gases transmission during have a power failure or power failure and cause Anesthesia machine not to be available electron stream
When amount control, continue to be necessary to patient's supply gas when losing electric power.In certain embodiments, electronics
Controller, such as the adjustment knob that matching coding device uses can be convenient for during anesthetic gases transmission to one or more gases
Flow carry out electronic type adjustment.The spare Traffic selector (such as knob) separated with electronic flow control can be in power supply event
Hinder or without being used when power supply.In these embodiments, operator needs to operate spare knob, and machine is switched from electronic pattern
To manual mode, and/or guarantee manual knob setting to perfect condition before being switched to manual mode.In various embodiments
In, manual knob can automatically return to ground state when cancelling/deactivating, in this way, the stream of each in nitrous oxide, air and oxygen
Amount has all been automatically set to default traffic state when using manual knob.
Especially perform the operation in medical procedure, first aid etc. is concerning during the treatment program of patients ' lives, during anesthesia of patient
Power down is to be easy to make us feeling in a hurry, with destructive.And two sets of same systems of control are seen for operator (doctor)
The knob of column gas can make us feeling inconvenient and/or disturb the judgement.In the various embodiments of the application, such as rotation knob
Traffic selector can carry out electronic operation when fluid flow control system is in power-up state, and when fluid flow control system
When system is in power-up state, standby stream selector is deactivated or stashes.Because electronic selector is functionally flowed with manual
It is similar to measure selector, so thus bring fascination can be reduced.It is standby when power-down state or operator operate back-up system
It can be ejected or be activated with Traffic selector.
Turn to valve system, mechanically operated valve, electronic operation valve, controller, encoder, Traffic selector, and/or other retouch
The quantity for being set forth in this component can be corresponding with the kind number of controllable gas (or liquid) respectively.In various anesthesia Transmission systems, oxygen
Gas, nitrous oxide, and/or air can controllable independently of one another and/or ratio it is controllable.The mixed gas of one or more gases can
It is used together with anesthesia evaporator, supplies patient after being mixed with the anesthetic gases of anesthesia evaporator evaporation.
In one embodiment, the bootable gas of valve system (or liquid) stream is turned to from gas source to such as mechanically actuated needle-valve
Mechanical flow control valve, or the electronic flow control valve of such as electronic proportioning valve, this will depend on whether anesthesiaing system power on
Or whether back-up system starts.
According to various embodiments, turning to valve system may include normally opened and normally close valve, be used to selectively prevent gas stream
It is flowed out to mechanically actuated needle-valve or electronic operation proportioning valve, or from mechanically actuated needle-valve or electronic operation proportioning valve.The switching valve
Various valves and/or control system can be used to realize for system, such as triple valve.
In certain embodiments, it can be used needle-valve as mechanical flow control valve, and same needle-valve combination electronics step
It can be used as electronic flow control valve into motor.In various embodiments, Traffic selector can be various knobs, button, rotation
Actuator, sliding block, and/or other analog and/or digitals select equipment.
In various embodiments, controller or control system being implemented in combination with by hardware, firmware, and/or software.Example
Such as, controller can be field programmable gate array (FPGA).In certain embodiments, for transmitting a control signal to electron stream
The electronic controller of control valve can distinguish setting or mutually indepedent with the electronic component of other in gas Flowrate Control System,
These electronic components include microprocessor and the associated ministry of electronics industry such as other and display, touch screen, data storage, data connection
Part.The reliability of electronic flow control device can pass through other electronic dies by electronic flow control device from anesthesia transmission device
Separation to be in block improving, or by hardware realization rather than software realization improves reliability.
Although various examples and embodiment in the application are described by taking gas Flowrate Control System as an example,
Be described many embodiments can also directly or modify and is used in any kind of fluid, including various gases with
Liquid.It is for the gas of anesthesiaing system, such as oxygen, nitrous oxide and air, and as description flow control system
Specific example when gas Flowrate Control System.
The embodiment of the present invention can be implemented by common universal architecture, such as general purpose computer, computer programming work
Tool and technology, digital storage media and communication network.It calculates equipment and other electronic controllers may include various forms of places
Manage device, such as microprocessor, microcontroller, logic circuit, and/or similar component.Processor can also be that dedicated processes are set
It is standby, such as specific integrated circuit (ASIC), programmable logic array (PAL), programmable logic array (PLA), programmable logic
Equipment (PLD), FPGA or other customizable and/or programmable devices.Calculating equipment may also include computer-readable storage and set
It is standby, for example, nonvolatile storage, static state RAM, dynamic ram, ROM, CD-ROM, disk, tape, magnetism, optics, flash memory or its
His machine readable storage medium.It can be used hardware, software, firmware or their combination various described in embodiment to realize
Technical solution.
For convenient for the various implementations of the application are described in detail below in conjunction with Figure of description to detailed understanding of the invention
Example.For the sake of simplicity, similar element is indicated with similar label in different embodiments.But those skilled in the art can
To understand, feature, structure, step described in various embodiments etc. could alternatively be other feasible feature, structure, steps
Suddenly；Feature, structure, step in one embodiment etc. can be combined with feature, structure, the step etc. in other embodiments or
Intersect replacement and obtains variant embodiment.In order to avoid main purpose of the invention thickens in the text, it is omitted and this
Invent the specific descriptions of known features, method of relevant this field etc..
So the detailed description of following the application system and method embodiment be not intended to limit the application such as claim institute
The protection scope shown, and the only representative of possible embodiment.In addition, the step of method, does not need by certain specific suitable
Sequence successively executes, these steps are also not necessarily limited to be only performed once.
Fig. 1 shows a kind of Anesthesia machine for configuring three manual flow selectors 150 (manual flow selectors)
100 (anesthesia delivery machine), wherein each selector 150 is for controlling oxygen, nitrous oxide and sky
The flow of gas.The Anesthesia machine 100 may include respiratory system 110 (breathing system), anesthesia evaporator 130
Other optional components of (anesthetic gas vaporizers), and/or anesthesia respiratory system.For example, the Anesthesia machine 100
It may also include trolley 140 (cart) and/or wheel 145 (wheels), in order to carry, move Anesthesia machine.Electronical display dress
The information of transmission process can be provided about flow and/or anaesthetize to operator by setting 120 (electronic display).In addition,
Electronic display unit 120 can assemble touch screen to allow operator to input by indicator screen and show the associated operation of content
And selection.Manual flow selector 150 said herein is alternatively referred to as electronic flow selector, is that cooperation rotary encoder etc. is realized
The component for user's manual operation of electronic flow control, user pass through the operation to selector 150, realization and mechanical flow
Similar operating experience is adjusted, but the operation of user can't directly control mechanical needle-valve to adjust flow, but be
The elements such as the internal rotary encoder cooperated with selector 150 of system convert electronic signal for the input of user and control electronic type again
Proportioning valve with realize flow adjust.
In various embodiments, user can clockwise or counterclockwise manual flow selector 150 (for example, rotatable
Knob) to reduce or increase the flow of particular fluid (for example, oxygen, nitrous oxide, air).In various embodiments, hand
The quantity of dynamic Traffic selector 150 can correspond to the kind number for the fluid to be controlled.It then, can be based on controlled gas (or other streams
Body) kind number come using any number of manual flow selector.
The Anesthesia machine 200 of another embodiment shown in Fig. 2 is configured with two electronic flow selectors 250
(electronic flow selectors) can be used for selectively controlling oxygen, nitrous oxide, air three kinds of gases
Each.The Anesthesia machine 200 further includes three spare 260 (backup manual flow of manual flow selector
Selectors), for control three kinds of gases each.The Anesthesia machine 200 may include 210 (breathing of respiratory system
System), other of anesthetic gases evaporator 230 (anesthetic gas vaporizers), and/or anesthesia Transmission system
Optional component.For example, the Anesthesia machine 200 may include trolley 240 (cart) and/or wheel 245 (wheels) to be easily moved.
Electronic display unit 220 (electronic display) can provide about flow to operator and/or anaesthetize transmission process
Information.In addition, electronic display unit 220 may include touch display screen.Manual flow selector 260 mentioned here is then mechanical
Formula, i.e., selector 260 is matched with the mechanical needle-valve of internal system, can directly be controlled by the operation of selector 260
Needle-valve processed is to realize the adjusting of flow.
When Anesthesia machine 200 is in electronic pattern, three spare manual flow selectors 260 can keep deactivating or retract
To the state of internal system.When Anesthesia machine 200 enters manual mode (for example, since power down is automatically into manual mode or user
Voluntarily selection enters manual mode), three spare manual flow selectors 260 can be popped up, unlock or be enabled.Correspondingly, as before
The various internal components, switch, normally open valve, normally close valve, triple valve, and/or other assemblies can be hands based on current Anesthesia machine
Dynamic model formula or electronic pattern cooperate the gas flow adjusted in Anesthesia machine 200.
In electronic pattern, spare manual flow selector 260 can be stowed away, lock, disconnecting, and/or unavailable.Here
Packing up can refer to selector 260 being designed as the structure that can be popped up/retract, when do not need using when be then hidden in system
Portion.At this point, the flow of two or more gases can be controlled by electronic flow selector 250.The anesthesia Transmission system can be due to falling
Electricity, electronics and mechanical breakdown, and/or user select manual mode and generate response and enter manual mode.
Fig. 3 show a kind of anesthesia Transmission system (anesthesia delivery system) 300, anesthesia transmission system
System 300 is configured with electronic flow control valve 311,312 and 313 (electronic flow control valves) and spare
Mechanical flow control valve 301,302 and 303 (backup mechanical flow control valves), for controlling oxygen
The flow of gas 321 (oxygen), nitrous oxide 322 (nitrous oxide) and air 323 (air).When passing through AC power source
When the power supply that 360 (AC supply) and/or battery 361 (batteries) obtain is available, anesthesia Transmission system selection passes through
The electronic flow control valve 301,302 and 303 of one or more electronic flow selectors control controls each road gas flow.Electricity
Source input can optionally pass through power panel 379 (power board) and/or mainboard 375 (motherboard) carries out conversion or inverse
Become (be provided on power panel, mainboard and carry out converting required electronic component, module).Gas flow plate 350 may include various prisons
Control and/or control assembly, for the gas flow in electronic monitoring, adjusting, and/or control anesthesia Transmission system.
In various embodiments, anesthesia Transmission system may include various assemblies and/or is interfaced to by gas flow plate 350
Various assemblies.For example, gas flow plate 350 may include or be connected to various FPGA, CPU, microprocessor, logic circuit, drive
Dynamic circuit, digital analog converter, analog-digital converter, driving circuit, motor driver, power switch, input equipment, optical sensing
Device, visual indicator light, display device, solenoid, stepper motor, touch tablet, and/or peripheral component.In addition, gas flow plate
350 may include or be connected to various motor position switches, LED, needle valve switch, gas source, and/or other selection input units.
Operator can be interacted for controlling the operation input of one or more gas flows with Anesthesia machine by providing.Citing comes
It says, operator can input the operation controlled flow by electronic flow selector.Electronic flow selector may include machine
The rotatable knob of tool and rotary encoder.
When anesthesia Transmission system is in power-up state, user can use the system under electronic pattern, or can choose hand
Dynamic model formula.When anesthesia Transmission system is in power-down state, which can use in a manual mode.In electronic pattern
In, three kinds of gases, oxygen 321, nitrous oxide 322 and air 323 can flow through electronic flow control valve 311,312 and 313
And/or check-valves 330 (check valves) and flow sensor.In manual mode, three kinds of gas oxygen 321, one are aoxidized
Phenodiazine 322 and air 323 can flow through stand-by machine flow control valve 301,302 and 303, oxygen ratio controller 325 and/
Or counterbalance valve 327 (backpressure valve).
The flow of the oxygen for being supplied to patient and air gas mixture may be selected in user (air is as balanced gas).User
The flow instead of air supply to the nitrous oxide of patient also may be selected (nitrous oxide is as balanced gas at this time).At certain
In a little embodiments, air and nitrous oxide can be used as balanced gas simultaneously.Under manual mode, selected regardless of what user makees, symbol
The amount of oxygen for closing safety requirements can be guaranteed to be supplied to patient automatically by oxygen ratio controller (ORC) 325.It can under electronic pattern
Ensure the safety operated by control circuit.
In various embodiments, user can be started gradually to increase gas into total flow from zero delivery and while be observed every
Influence of the kind gas for total flow, to be finally reached the target rate of oxygen 321, nitrous oxide 322 and air 323.
In other variant embodiments, since user every in three road gases adjust the oxygen 321 of " ground state " flow of system default
One reaches desired flow, obtains the target rate of oxygen 321, nitrous oxide 322 and air 323 with this.Oxygen ratio
Rate controller 325 can guarantee the ratio of clinically safe oxygen and nitrous oxide.Check-valves 330 can be prevented by potential high
Press each road gas backstreaming caused by fair current.
In any flow control mode, after check-valves 330, the air-flow of three kinds of gases is combinable, and become can be by
The single air-flow of mass flow meters measurement, and flow through mass flow meters 337 (total flow meter).Anesthesia evaporator 340
The anesthetic of liquid can be vaporized into gas by (anesthetic gas vaporizer).335 (three- of triple valve can be used
Way selector valve) it selects to be connected to using the corresponding air flow path of mode with mass flow meters 337 with current system, example
Such as from one of stand-by machine flow control valve 301,302,303 and 311,312,313 two groups of electronic flow control valve guidance gas
Stream flows through.Optionally, triple valve is alternatively at one or more normally opened and/or normally close valve combinations.The switching valve of other forms
System can be used for substituting triple valve 335 and/or normally opened and/or normally close valve.
It, can quilt with stand-by machine flow control valve 301,302 and 303 associated flow control selectors under electronic pattern
Deactivate or be retracted into internal system.According to system, whether power down or user have selected corresponding operating, system it is automatic or
Enter manual mode according to instruction, then can be activated with needle-valve 301,302 and 303 associated flow control selectors at this time, bullet
Out, unlock etc. and can be used.The some elements for being listed in the anesthesia Transmission system 300 of element declaratives 390 are not detailed in the description
It states.In addition, various can be used for anaesthetizing Transmission system, gas delivery system, liquid transfer system, and/or other related systems
Component, test equipment, monitoring device, and/or control equipment, can be added as needed, supplement and/or instead of in shown system
Component.
Fig. 4 A show the myopia of the Anesthesia machine control panel 400 (control panel) of one embodiment of the present invention
Figure, including two Traffic selectors 415 and 417 (electronic flow selectors), are selectively configured to such as
Under direct flow control model shown in 480 (direct flow mode), the flow of oxygen and nitrous oxide is directly controlled
Or the flow of oxygen and air, as shown at 470.As shown in Figure 4 A, the Anesthesia machine may include panel 430 (panel) with show with
The associated various measurement data of patient, with the associated information of gas flow, and/or with one or more anesthetic transmit it is associated
Information.Display and/or the control Anesthesia machine of panel 430 can be changed by various enter keys 440 (inputs).
When selecting switch 470 (selection toggle) to be in first position (such as O2+N2O is selected), it can permit
Perhaps operator controls the flow of oxygen and nitrous oxide by corresponding electronic flow selector 415 and 417.When selection is opened
When closing 470 in the second position (such as O2+AIR is selected), operator is allowed to pass through corresponding 415 He of Traffic selector
The flow of 417 control oxygen and air.Based on the position of selection switch 470, various traffic monitoring equipment and ratio measure equipment
(ratio measuring devices), as shown at 420, can show the flow of one or more gases and/or combination of gases.
In various embodiments, it is also an option that configuration oxygen and/or the spare of other gases output and input (auxiliary
Inputs and outputs), as shown in 450.
Although there are two electronic flow selectors 415 and 417 for embodiment tool as shown in Figure 4 A, also can be used any
The Traffic selector of number and the gas being associated.For example, configurable flow control system allows to 1,2,3,
4 ... or N kind gas or liquid carry out electronics and spare manually control.In certain embodiments, it can configure more than one stream
Measure the flow of selector (e.g., knob, selection switch, dial, sliding block, switch) the same gas of control.It can be used additionally
Select switch 470 and/or multiposition selection switch to control a greater variety of gases, these gases can be by any number of corresponding
Flow control selection knob control.Traffic selector may include and/or using any analog or digital selection mechanism with
In selection flow, such as knob shown in Fig. 4 A.
In the direct flow control model shown in 480, first flow selector 415 can be used to directly select an oxidation
The flow of phenodiazine or air, this will be determined by which kind of balanced gas selection switch 470 selects.Use second flow selector
417 directly select the flow of oxygen.As described above, being compiled with the associated rotation of each in electronic flow selector 415 and 417
Code device can encode selection.Then electronic controller can be used coding after selection by electronic flow control valve (for example,
Electronic proportioning valve) control the flow of each gas.
Numerical value shows 420 (graphical of 460 (numeric values) and 461 and corresponding graphical display
Representations it) can be used for indicating the direct flow (such as liter/min) or percentage specific discharge of every kind of controlled air.It can
Selection of land, numerical value show 460 and 461 and/or graphical display 420 can show the selected flow, total flow, two kinds of gases of every kind of gas
Ratio, relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage and with flow it is associated
Similar information.In the embodiment shown in Fig. 4 A, display nitrous oxide account for total gas flow rate a quarter (1/4 or
0.25), and oxygen accounts for 3/4ths (3/4 or 0.75) of total gas flow rate.
Fig. 4 B show the control panel 400 of the Anesthesia machine of one embodiment of the present invention, further includes that two electronics are sliding
Block 491 and 493 (electronic sliders), for controlling gas flow in direct flow control model.Such as Fig. 4 B institute
Show, other than above-mentioned electronic flow selector 415 and 417 and other assemblies, user 495 (user) can pass through touch screen
Interface, it is upper and lower to slide electronics sliding block 491 and 493 to be adjusted.
In the direct flow control model shown in 480, the first sliding block 491 can be used directly select nitrous oxide or
The flow of air, this is determined by which kind of balanced gas selection switch 470 selects.The second sliding block 493 can be used directly to select
Select the flow of oxygen.Then the selection after coding can be used to pass through electronic flow control valve (for example, electrical proportional for electronic controller
Valve) control the flow of each gas.When having used electronic flow selector 415 and 417 or sliding block 491 and 493, numerical value is aobvious
Show 460 and 461 and sliding block 491 and 493 touch icon numerical value it is automatically updated.
Fig. 5 A show the myopia of the Anesthesia machine control panel 500 (control panel) of one embodiment of the present invention
Figure comprising two electronic flow selectors 515 and 517 (electronic flow selectors), selectively configuration is used
In total flow control model shown in Yu Ru 580 (total flow mode), oxygen and nitrous oxide are directly controlled, or
The flow of oxygen and air, as shown in 570.As shown in Figure 5A, which may include panel 530 (panel) to show and suffer from
The associated various measurement data of person transmit associated letter with the associated information of gas flow, and/or with one or more anesthetic
Breath.Display and/or the control Anesthesia machine of panel 530 can be changed by various enter keys 540 (inputs).
When selecting switch 570 (selection toggle) to be in first position (such as O2+N2O is selected), it can permit
Perhaps operator controls the flow of oxygen and nitrous oxide by corresponding electronic flow selector 515 and 517.When selection switchs
570 when being in the second position (such as O2+AIR selected), allow operator to pass through corresponding Traffic selector 515 and 517
Control the flow of oxygen and air.Based on the position of selection switch 570, various traffic monitoring equipment and ratio measure equipment
(ratio measuring devices), as depicted 520, can show the flow of one or more gases and/or combination of gases.
In various embodiments, it is also an option that configuration oxygen and/or the spare of other gases output and input (auxiliary
Inputs and outputs), as shown in 550.
Although there are two electronic flow selectors 515 and 517 for embodiment tool as shown in Figure 5A, also can be used any
The Traffic selector of number and the gas being associated.For example, configurable flow control system allows to 1,2,3,4 ...
Or N kind gas or liquid carry out electronics and spare manually control.In certain embodiments, it can configure more than one Traffic selector
(such as knob, selection switch, dial, sliding block, switch) is to control the flow of same gas.Additional selection can be used to open
To control a greater variety of gases, these gases can be by any number of corresponding flow for pass 570 and/or multiposition selection switch
Control selections knobs controls.Traffic selector may include and/or using any analog or digital selection mechanism to be used to select
Flow, such as knob shown in Fig. 5 A.
In the total flow control model shown in 580, total stream of gas is adjusted using the first electronic flow selector 515
Amount.That is the first electronic flow selector 515 can be used to adjust oxygen and the selected balanced gas with oxygen mix
The total flow of (air or nitrous oxide).It is (empty with selected balanced gas to control that the second electronic flow selector 517 can be used
Gas or nitrous oxide are determined by which kind of balanced gas of the selection selection of switch 570) mixed oxygen concentration.The selection
It can be encoded by rotary encoder and be transmitted to electronic controller.Selected ratio and flow can by electronic controller into
Row calculates.Then electronic controller can be used coding after selection by electronic flow control valve (for example, electronic proportioning valve) come
Control the flow of each gas.
Numerical value show 560 (numeric values) and 561 and corresponding graphical display 520 can be used for indicating every kind by
Control the direct flow (such as liter/min) or percentage specific discharge of gas.Optionally, which shows 560 and 561 and/or figure
Selected flow that display 520 can show every kind of gas, total flow, the ratio of two kinds of gas, relative to optimal flux total flow,
And/or other numerical value, chart, figure, percentage and similar information.
In the embodiment shown in Fig. 5 A, selected balanced gas is nitrous oxide, as shown in 570.Pass through first
The total flow that electronic flow selector 515 selects is 10.0.Total flow can be free of unit, by liter/min, kg/min and/
Or other volume or weight units are measured relative to the time.It can be used the second electronic flow selector 517 selection oxygen Zhan total
The percentage (being shown as 60%) of gas flow.
Fig. 5 B show the control panel 500 (control panel) of the Anesthesia machine of one embodiment of the present invention, also
Including two electronics sliding blocks 591 and 593 (electronic sliders), for controlling gas in total flow control model
Flow.As shown in Figure 5 B, other than electronic flow selector 515 and 517 and other above-mentioned components, user 595
It (user) can be upper and lower to slide electronics sliding block 591 and 593 to be adjusted by touch screen interface.
In the total flow control model shown in 580, the first sliding block 591 can be used to select selected balanced gas and oxygen
Total flow.The second sliding block 593 can be used to directly select the flow of oxygen.In the embodiment shown in Fig. 5 B, detection device
Visual display 520 illustrates the flow of perfect condition, the total flow of mixed gas and oxygen.When having used electronic flow choosing
When selecting device 515 and 517 or sliding block 591 and 593, numerical value shows the touch icon numerical value in 560 and 561 and sliding block 591 and 593
It is automatically updated.The flow and ratio selected by electronic flow selector 515 and 517 and/or sliding block 591 and 593 can pass through
Electronic controller is calculated.Then electronic controller can be used the selection of coding by electronic flow control valve (for example, electronics
Proportioning valve) control the flow of each gas.
Fig. 6 show the wide-angle view of the Anesthesia machine control panel 600 (control panel) of one embodiment of the present invention
Figure, including dual-mode electric Traffic selector (dual mode electronic flow selectors) 615 and 617 and
Stand-by machine volume control device (backup mechanical flow controls) 681,682 and 683 is controlled for independent
Make the flow of three kinds of gas.When anaesthetizing Transmission system work in electronic pattern, two electronic flow control selections devices 615 can be used
With 617 control oxygen and nitrous oxide or oxygen and air, it is determined by selection switch choices made.Electronical display dress
Setting 630 (electronic display) can show and one or more gas flows, anesthetic, and/or patient measurement data
Associated information.It can provide various touch input keys 640 (touch inputs).Spare 650 (auxiliary of control panel
Control panel) allow one or more gases to be supplied to stand-by equipment.
Mode selector selection direct flow control model or total flow control model can be used.Mould is controlled in direct flow
Under formula, the first electronic flow selector can be used directly to adjust the flow of nitrous oxide or air, depends on selected flat
Weigh gas.The second electronic flow selector can be used directly to adjust the flow of oxygen.It is shown with the associated number of selected flow
Device can show the flow of every kind of gas, total flow, the ratio of two kinds of gas, relative to the total flow of optimal flux, and/or its
His numerical value, chart, figure, percentage and similar information.
The system is optionally used in total flow control model.In total flow control model, first can be used
Electronic flow selector adjusts the total flow of gas, including selected balanced gas (air or nitrous oxide) and oxygen.
It can be used the second electronic flow selector control oxygen mix in the dense of selected balanced gas (air or nitrous oxide)
Degree.The selection can be encoded by one or more rotary encoders and be transmitted to electronic controller.It can be by electronic controller to selection
Ratio and flow calculated.Then electronic controller can be used coding after selection by electronic flow control valve (for example,
Electronic proportioning valve) control the flow of each gas.
Numerical value is shown and corresponding graphical display can show the direct flow (e.g., liter/min) or hundred of every kind of controlled air
Divide specific discharge.Optionally, numerical value is shown and/or graphical display can show the selected flow, total flow, two kinds of gases of every kind of gas
Ratio, relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage and similar information.
When anesthesia Transmission system be in the selected manual mode of power-down state and/or user, which can be into
Enter manual mode.In manual mode, the flow of one or more gases and/or the transmission quantity of anesthetic can pass through manual panel
655 (manual panel) are controlled.Electronic display unit 630 (electronic display), touch input device 640
(touch inputs), electronic flow control selections device 615 and 617 and other electronic building bricks are unavailable in power-down mode, and
And when in the manual mode of power-up state they one or more it is unavailable and/or invalid.
Manual panel 655 may include summation flowmeter indicator 690 (total flow rate indicator), manual mode
Selector 685 (manual mode selector) (e.g., spring-loaded plunger) and one or more manual operation flow control choosings
Select device (manually operated flow control selectors) 681,682,683.In various embodiments, hand
Dynamic operation flow control selections device can be used for controlling every kind of available gas or can be used for controlling every kind of available key gas.?
In different embodiments, when anesthesia Transmission system is in electronic pattern, flow control selector 681,682 and is manually operated
683 can be hidden, deactivate, locking etc. and inoperable.In manual mode, flow control selector 681,682 and is manually operated
683 can be activated, pop up, unlocking etc. and can operate.
So-called anesthesia Transmission system in the present invention, may also be referred to as anesthesia respiratory system or breathing circuit for anesthesia, fiber crops
Liquor-saturated respiratory circulatory system etc.；Flow control selector is also referred to as flow controller；
According to any one of various embodiments described herein, gas Flowrate Control System can be based on its function wide
It is used in general field.In embodiment shown above, a part of gas Flowrate Control System as anesthesia Transmission system.
In these embodiments, the mixed airflow of one or more gases can inject or be perfused anesthetic, such as by evaporator, to trouble
Person controllably transmits anesthetic and/or one or more gases.
Use above specific case is expounded the various exemplary principle and embodiments of the application, the above reality
The explanation for applying example is merely used to help understand the application；At the same time, for those skilled in the art, foundation above-mentioned example,
There will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as to this
The limitation of application.
Claims (14)
1. a kind of fluid flow control system characterized by comprising
First electronic flow control valve, for selectively controlling the flow of first fluid；
Second electronic flow control valve, for selectively controlling the flow of second fluid；
Mode selector, for carrying out the selection of direct flow control model and total flow control model for user；
First rotatable Traffic selector, is configured that
In total flow control model, the first rotatable Traffic selector is for selecting the first fluid and second fluid
Total flow so that the first rotatable Traffic selector can the first fluid and second fluid for selection by the user
Total flow；And in direct flow control model, the first rotatable Traffic selector is for selecting the first fluid
Flow so that the first rotatable Traffic selector can first fluid for selection by the user flow；
Second rotatable Traffic selector, for selecting the flow of the second fluid, so that the second rotatable flow
Selector can second fluid for selection by the user flow；
First rotary encoder, for believing in total flow control model the selection exported by the first flow selector
Number electronic code is carried out, and to the selection signal exported by the first flow selector in direct flow control model
Carry out electronic code；
Second rotary encoder, for carrying out electronic code to the selection signal exported by the second flow selector；With
And
Controller, based on the selection signal after the electronic code from first rotary encoder and the second rotary encoder
The corresponding control signal of transmission is to first electronic flow control valve and the second electronic flow control valve, to control described first
The flow of fluid and second fluid.
2. a kind of fluid flow control system characterized by comprising
First electronic flow control valve, for selectively controlling the flow of first fluid；
Second electronic flow control valve, for selectively controlling the flow of second fluid；
First rotatable Traffic selector, for being controlled respectively by first electronic flow control valve and the second electronic flow
Valve carries out the selection of the first fluid and second fluid total flow, so that the first rotatable Traffic selector can be for
User selects the total flow of the first fluid and second fluid；
Second rotatable Traffic selector, for carrying out the second fluid flow by second electronic flow control valve
Selection so that the second rotatable Traffic selector can second fluid for selection by the user flow；
First rotary encoder, for carrying out electronic code to the selection signal exported by the first flow selector；
Second rotary encoder, for carrying out electronic code to the selection signal exported by the second flow selector；With
And
Controller, for transmitting a control signal to first electronic flow control valve and the second electronic flow control valve, respectively
The flow of the first fluid and second fluid is controlled, is led to so that the total flow of the first fluid and second fluid corresponds to
The selection that the first flow selector is made is crossed, the flow of the second fluid corresponds to the pass the second rotary encoder and made
Selection.
3. fluid flow control system as claimed in claim 2, which is characterized in that the flow of the second fluid passes through selection
Second fluid is realized relative to the concentration of total flow.
4. a kind of fluid flow control system characterized by comprising
First electronic flow control valve, for selectively controlling the flow of first fluid；
Second electronic flow control valve, for selectively controlling the flow of second fluid；
First rotatable Traffic selector, for carrying out the first fluid flow by first electronic flow control valve
Selection so that the first rotatable Traffic selector can first fluid for selection by the user flow；
Second rotatable Traffic selector, for carrying out the second fluid flow by second electronic flow control valve
Selection so that the second rotatable Traffic selector can second fluid for selection by the user flow；
First rotary encoder, for carrying out electronic code to the selection signal exported by the first flow selector；
Second rotary encoder, for carrying out electronic code to the selection signal exported by the second flow selector；With
And
Controller is based on for transmitting a control signal to first electronic flow control valve and the second electronic flow control valve
Selection signal after the electronic code of first and second rotary encoder controls the first fluid and respectively
The flow of two fluids.
5. fluid flow control system as claimed in claim 4, which is characterized in that further include:
Third electronic flow control valve, for selectively controlling the flow of third fluid；
The rotatable Traffic selector of third, for carrying out to the third fluid by the third electronic flow control valve
The selection of flow；And
Third rotary encoder, for carrying out electronic code to the selection made by the third Traffic selector；Wherein
The controller is also used to transmit a control signal to the third electronic flow control valve, based on from third rotation
Selection after turning the electronic code of encoder controls the flow of the third fluid.
6. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that the second
Body is oxygen.
7. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that described first-class
Body is one of nitrous oxide or air.
8. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that further include electronics
Balanced gas selector, for selecting nitrous oxide as balanced gas,
Or for selecting air as balanced gas, or for selecting nitrous oxide and air as balanced gas.
9. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that first electricity
Subflow control valve and/or the second electronic flow control valve are electronic proportioning valves.
10. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that described first
Rotatable Traffic selector and/or the second rotatable Traffic selector are rotatable knobs.
11. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that further include fiber crops
Liquor-saturated evaporator, for the anesthetic after evaporation to be mixed at least one of the first fluid and second fluid.
12. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that further include electricity
Sub- display device, when being in total flow control model, for showing the total flow for representing the first fluid and second fluid
The first numerical value, and display represents the second value of the flow of the second fluid relative to the percentage of total flow.
13. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that further include electricity
Sub- display device, when being in direct flow control model, for showing the first numerical value for representing the first fluid flow, and
Display represents the second value of the second fluid flow.
14. the fluid flow control system as described in any one of claim 1,2,4,5, which is characterized in that further include electricity
Sub- display device, it is described virtual for showing the virtual flowtube for representing the flow of one of the first fluid and second fluid
The variable area flowmeter of flowtube has simulation buoy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452514.1A CN103809619B (en) | 2012-11-13 | 2012-11-13 | Fluid Flow Control System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452514.1A CN103809619B (en) | 2012-11-13 | 2012-11-13 | Fluid Flow Control System |
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| Publication Number | Publication Date |
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| CN103809619A CN103809619A (en) | 2014-05-21 |
| CN103809619B true CN103809619B (en) | 2019-03-05 |
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| CN201210452514.1A Active CN103809619B (en) | 2012-11-13 | 2012-11-13 | Fluid Flow Control System |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109069782B (en) * | 2018-06-26 | 2021-12-17 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine and system |
| CN114901337A (en) * | 2019-12-30 | 2022-08-12 | 深圳迈瑞生物医疗电子股份有限公司 | Auxiliary ventilation system and anesthesia system |
| CN117957032A (en) * | 2021-09-06 | 2024-04-30 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797820A (en) * | 1986-07-28 | 1989-01-10 | Ansan Industries Limited | Programmable flow control valve unit with clock, program, automatic, manual, and repeat modes |
| CN101470050A (en) * | 2007-12-29 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Integrated measuring instrument |
| CN102139133A (en) * | 2010-02-01 | 2011-08-03 | 迈瑞Ds美国有限责任公司 | Anaesthetizing system and gas mixing method in anaesthetizing system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19621025C2 (en) * | 1996-05-24 | 1999-03-11 | Daimler Benz Ag | Operating device for an air conditioning system of a motor vehicle |
| US6857443B2 (en) * | 2003-02-24 | 2005-02-22 | George A. Volgyesi | Electronic gas blender and gas flow control mechanism therefor |
| US7624757B2 (en) * | 2006-11-09 | 2009-12-01 | Masco Corporation Of Indiana | Dual function handles for a faucet assembly |
-
2012
- 2012-11-13 CN CN201210452514.1A patent/CN103809619B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797820A (en) * | 1986-07-28 | 1989-01-10 | Ansan Industries Limited | Programmable flow control valve unit with clock, program, automatic, manual, and repeat modes |
| CN101470050A (en) * | 2007-12-29 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Integrated measuring instrument |
| CN102139133A (en) * | 2010-02-01 | 2011-08-03 | 迈瑞Ds美国有限责任公司 | Anaesthetizing system and gas mixing method in anaesthetizing system |
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Effective date of registration: 20181121 Address after: 518057 the 1-4 floor of MINDRAY building, science and technology south twelve Road, Nanshan District high tech Industrial Park, Shenzhen, Guangdong. Applicant after: Shenzhen Mairui Biotherapeutic Electronic Co., Ltd. Applicant after: Shenzhen MINDRAY Technology Co., Ltd. Address before: 518057 MINDRAY science and technology south twelve road MINDRAY high tech Industrial Park, Shenzhen, Guangdong Applicant before: Shenzhen Mairui Biotherapeutic Electronic Co., Ltd. |
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