CN103809620B - electronic flow control method and system - Google Patents

Abstract

A kind of electronic flow control method and system, two or more electronic flow selectors can be used to control the flow of multiple fluid.In total flow control model, it the first electronic flow selector can be used to select the total flow of two or more fluids, the second electronic flow selector can be used to select the ratio of flow or one of which fluid relative to two or more fluid total flows of one of which fluid.In direct flow control model, each electronic flow selector can be used to select the flow of single fluid.A kind of fluid can be oxygen, and the selection of electronic equilibrium gas selector can be used to be nitrous oxide or air for other fluids, balanced gas.

Description

Electronic flow control method and system

Technical field

Present application relates generally to the method and system of fluid flow is controlled by electronic control mode.Especially, this Shen Relate to may be implemented in the electronic flow selector and screen control device of various selectable Schema control fluid flow.

The content of the invention

In the various application examples of modern anesthesia Transmission system, the live gas such as oxygen, nitrous oxide, air Flow can be by operator by being electronically or mechanically controlled.In various embodiments, one or many may be set The rotatable Traffic selector of individual such as knob, so as in power-up state by electronically controlling the flow of gas.Substitute Ground or additionally, configurable screen display device is to allow the flow of the one or more gases of user's Electronic Control.

Anesthesia Transmission system may also include manual standby volume control device, a kind of or many for being controlled in power-down state Plant the flow of gas.In one embodiment, the combination of triple valve and/or normally open valve and normally close valve can be used to select from electronics The air-flow flowed through of control proportioning valve or Mechanical course needle-valve.Valve module, Traffic selector and location detection system and its can The deformation combination of energy or mode can be used for various flow control systems.

In various embodiments, when fluid flow control system is in power-up state, triple valve or other switching valve systems System can allow fluid to be only transferred to patient from Electronic Control electronic proportioning valve.When fluid flow control system be in power-down state or User voluntarily have selected when controlling preferential manually, and triple valve then allows fluid to be only transferred to patient from Mechanical course needle-valve.Substitute Ground, turning to valve system can also use cooperatively by normally opened and normally close valve combination replacement triple valve, or with triple valve.Some In embodiment, turning to valve system can be located between fluid source and control valve for fluids.In further embodiments, turning to valve system can Between control valve for fluids and fluid exit.

The control valve for fluids of configurable such as Electronic Control proportioning valve comes from the fluid of fluid source optionally to receive. Electronic flow selector can allow operator to pass through the flow of electronic control valve selection fluid.From the point of view of user, electron stream Measure selector approximate with the control handle function of mechanical needle-valve.For example, user can clockwise or counterclockwise knob to increase Or the flow of reduction particular fluid.The selection that rotary encoder can generate electronic flow selector carries out electronic code and volume The selection of code is sent to electronic controller.Electronic controller can transmit control signals to electronic flow control valve, with based on electricity The flow of the selection control fluid of sub- Traffic selector generation.

Optionally, screen display device also allows for the flow of operator's selection or the one or more fluids of regulation.For example, User can input the numerical value associated with total flow, the percentage of fluid ratio, the flow of particular fluid, and/or with it is a kind of or many Plant the numerical value of fluid communication.Direct flow control model can be performed by screen display device, user can provide in this mode First input is inputted directly to adjust the flow of nitrous oxide or air with the flow and second for directly adjusting oxygen.Substitute Ground, also can perform total flow control model by screen display device, in this mode there is provided selection all gas (as selected Balanced gas and oxygen) total flow first input, and provide selection with selected balanced gas (air or one oxidation two Nitrogen) mixing oxygen concentration second input.

Selected value, suitable ratio, and/or other settings can be presented after system-computed/processing with visualized graphs, For example it is denoted as flowtube, the flow bar (e.g., variable area flowmeter) of digitlization or mechanical system control.Digitlization is aobvious Show the numerical value that may also display with transmission flow (e.g., liter/min) association per single gas.In various embodiments, digitize Display can show total flow, the ratio of two kinds of gas, relative to the total flow of optimal flux, and/or other numerical value, chart, figure Shape, percentage and the similar information associated with flow.

In certain embodiments, two electronic flow selectors can be used optionally to control oxygen and an oxidation for the system The flow or oxygen and the flow of air of phenodiazine.The Traffic selector can be used in direct flow control model, in the pattern In, the flow of oxygen is directly adjusted using the first electronic flow selector, and directly adjust using the second electronic flow selector The flow of whole nitrous oxide or air.The numerical monitor associated with selected flow can show the selected flow, total of every kind of gas Flow, the ratio of two kinds of gas, relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage and Similar information.

Traffic selector can also be operated under total flow control model, in this mode, be selected using the first electronic flow The total flow of the selected balanced gas (air or nitrous oxide) of device adjustment and the oxygen of transmission is selected, is selected using the second electronic flow Select the concentration for the oxygen that device control is mixed with selected balanced gas (air or nitrous oxide).The ratio of two kinds of gas under the pattern Rate can obtain flowtube/flow bar (e.g., variable area stream that simultaneously graph-based controls for numeral or mechanical system by calculating Gauge).The digitlization, which is shown, can show the numerical value with transmission flow (e.g., liter/min) association per single gas.In various realities Apply in example, numerical monitor can show total flow, the ratio of two kinds of gas, relative to the total flow of optimal flux, and/or other numbers Value, chart, figure, percentage and the similar information associated with flow.

Electronic flow control valve can be electronic proportioning valve, and electronic flow selector can be knob, i.e., user passes through Manual rotation knob is to control electronic proportioning valve so as to control the gas flow by the electronic proportioning valve.Alternatively, electron stream Amount selector may include varied numeral with encoder and/or analogue selector.For example, sliding block can be used in 0 flow Adjusted between point and 100% flow point.Electronic code can be carried out to the signal that sliding block is produced by sliding encoder, and correspondence exports control Signal processed controls proportioning valve.

In certain embodiments, one or more independent electronic flow control valves can be used to control the stream of every kind of available 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.3rd electronic flow control valve can control the flow of air.4th electronic flow control valve can control the 4th kind of gas Flow.

Similarly, the flow of every kind of electronic flow control valve can be controlled with independent electronic flow selector.Alternatively, it is optional Distribute to selecting property one or more electronic flow selectors and control two or more electronic flow control valves.For example, system can be wrapped Three electronic flow control valves are included, one is used for oxygen, and one is used for air, and another is used for nitrous oxide.The system can Using only two electronic flow selectors, optionally using the flow or nitrous oxide of one of control air Flow, and distribute the flow of another control oxygen.Fixable distribution optionally distributes the selection of any one electronic flow Device control is one or more can to use the flow of fluid.

In addition to electronic control valve, the stream that one or more mechanical flow control valves control every kind of available fluid can configure Amount.For example, the flow of the every kind of available fluid of independent needle-valve Mechanical course can be used.The manual flow selection of such as knob or sliding block Device, can be operated the flow for the fluid that each needle-valve is flowed through with machinery adjustment by user.In certain embodiments, when system is in During power-up state, manual flow selector can be disabled and/or packed up to prevent user to be adjusted by its fluid flow, keep away Exempt to disturb normal flow control operation.

In power-up state, it can be controlled by adjusting one or more electronic flow selectors by one or more electronics The flow of one or more fluids of flow control valve.In power-up state, stand-by machine flow control valve can be disabled or close, with Fluid is prevented to be mixed by the standby control valve with other fluids.In addition, in power-up state, can disable or pack up and guest machine The manual flow selector of tool flow control valve association is to prevent user from takeing for now adjusting by manual flow selector Flow.

It in power-down state, or have selected when controlling preferential manually, electronic flow control valve can be disabled and/or prevent to pass through it Transmit fluid or fluid-mixing.Manual flow selector can be activated and/or eject to allow operator to pass through stand-by machine flow Control valve directly controls the flow of one or more fluids.

In certain embodiments, when disabling manual flow selector, such as when power up or system are reset Wait, the flow of each stand-by machine flow control valve can reset to ground state/original state/default conditions, when system is again introduced into During power-down state, gas transmits the flow automatically according to the original state.

In one embodiment, electronic flow control valve may include Electronic Control stepper motor and mechanical flow control valve, The flow of fluid is adjusted so as to control machinery flow control valve by controlled motor.Here mechanical flow control valve can with it is standby Mechanical flow control valve is shared or set up.Various examples provided in embodiments of the present invention, the main quilt of fluid It is described as gas, including but not limited to oxygen, nitrous oxide, and/or air.But, according to disclosed in entirety of the present invention Invention thought, it will be understood by those skilled in the art that the embodiment or its simple deformation be applicable to it is various Gas and liquid.

Brief description of the drawings

Fig. 1 show the Anesthesia machine of one embodiment of the present invention, and it is configured with three manual flow selectors, Mei Gefen Kong Zhi not oxygen, nitrous oxide and air.

Fig. 2 show the Anesthesia machine of another embodiment of the present invention, and it configures two electronic flow selectors, may be selected Control to property each gas in three kinds of gases；And the stand-by machine flow control of three alternative ejections or retraction 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, its be configured with control oxygen, nitrous oxide and The electronic-controlled installation of air mass flow and standby manual overvide.

Fig. 4 show a kind of partial enlarged drawing for anaesthetizing Transmission system control panel, and it includes two electronic flow selections Device, optionally with directly controlling oxygen and nitrous oxide or oxygen and air with direct flow control model.

Fig. 5 show a kind of partial enlarged drawing of Anesthesia machine control panel, including two electronic flow selectors, and it is selected Property be configurable to control oxygen relative to oxygen and nitrous oxide or air mixing total flow ratio.

Fig. 6 show a kind of panoramic view of Anesthesia machine control panel, including dual-mode electric Traffic selector and standby Manual flow control for three kinds of gas of independent control flow.

Fig. 7 A show a kind of screen display device of Anesthesia machine, for allowing user to be selected in total flow control model The relative discharge of oxygen and balanced gas (air or nitrous oxide).

Fig. 7 B show a kind of another view of the screen display device of Anesthesia machine, for controlling mould in total flow Select to show in the relative discharge of oxygen and balanced gas, and the drop-down menu including being used to select balanced gas, figure in formula Recall the situation of drop-down menu.

Fig. 7 C show a kind of screen display device of Anesthesia machine, for selecting oxygen and one in total flow control model The relative discharge of nitrous oxide, now selected balanced gas are nitrous oxide.

Fig. 7 D show a kind of screen display device of Anesthesia machine, for selecting oxygen and sky in total flow control model The relative discharge of gas, now selected balanced gas are air.

Fig. 8 A show a kind of screen display device of Anesthesia machine, in direct flow control model select oxygen and The relative discharge of air.

Fig. 8 B show a kind of screen display device of Anesthesia machine, in direct flow control model select oxygen and The relative discharge of nitrous oxide.

Fig. 9 A show a kind of panoramic view of Anesthesia machine screen display device, for being selected in total flow control model The relative discharge of oxygen and balanced gas.

Fig. 9 B show the panoramic view of Anesthesia machine screen display device, for selecting oxygen in direct flow control model With the relative discharge of balanced gas.

Embodiment

Electronic flow control valve, such as Electronic Control proportioning valve, available for optionally allowing the fluid that comes from fluid source Pass through.Electronic flow selector can allow operator to pass through the flow of electronic control valve selection first fluid.From user use or From the point of view of person's Consumer's Experience angle, the control handle of electronic flow selector and control machinery needle-valve is in mode of operation and functionally near Seemingly.For example, user can clockwise or counterclockwise knob to increase or decrease the flow of particular fluid.Such as system configuration The selection signal that rotary encoder can generate electronic flow selector carries out electronic code and the signal of coding is sent to electricity Sub-controller, electronic controller can transmit control signals to electronic flow control valve, to be generated based on electronic flow selector Selection control fluid flow.And under mechanical control method, user is also that turn knob increases or decreases fluid flow, area It is not that the direct control machinery needle-valve of operation of now user reaches the purpose of Flow-rate adjustment.But the difference of this inside is not Experience during user's operation is influenceed, therefore the Anesthesia machine of the present invention is that can obtain using the various excellent of electronic flow control valve Point, while mechanical flow regulation mode of operation again can be retained so that the Consumer's Experience of long-term habits mechanical operation compared with It is excellent.

One or more electronic flow selectors can be optionally 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, and another is used for an oxygen Change phenodiazine.Two electronic flow selectors can be used only in the system, and one of them can be selectively used for the flow for controlling air Or the flow of nitrous oxide, and another then distributes the flow for controlling oxygen.Fixable distribution or optional distribution The control of any one electronic flow selector is one or more can to use the flow of fluid.

In certain embodiments, two electronic flow selectors can be used optionally to control oxygen and an oxidation for system The flow of phenodiazine or oxygen and air.It can use Traffic selector, in this mode, use using direct flow control model First electronic flow selector directly adjusts the flow of oxygen, and directly adjusts an oxidation using the second electronic flow selector The flow of phenodiazine or air.The numeric display unit associated with selected flow can show the selected 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 other numerical value, chart, figure, percentage and and flow The similar information of association.

Traffic selector can additionally, optionally or alternatively be used in total flow control model, in this mode, The total flow of selected balanced gas (air or nitrous oxide) and the oxygen of conveying is adjusted using the first electronic flow selector, And the oxygen concentration for controlling to mix with selected balanced gas (air or nitrous oxide) using the second electronic flow selector. The ratio (oxygen and balanced gas) of two kinds of gas can be by calculating acquisition and being expressed as numeral or machinery side with patterned way The flowtube of formula control (e.g., similar to the electronical display of variable area flowmeter).The numerical monitor can be shown and every single gas The numerical value of release flow (e.g., liter/min) association of body.In various embodiments, numerical monitor can show total flow, two kinds of gas The ratio of body, associate relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage and with flow Similar information.

Additionally or alternatively, screen display device can allow user in direct flow control model or total flow control The flow of one or more gases is selected in pattern.Screen display device may include for selecting the fast of the common flow of specific gas Prompt key, for input the keypad with the numerical value that associates of one or more gases, digital knob, digital slider, down arrows and/ Or other are used to select the numeral of flow that control device may be selected.The electronics made by screen display device (such as touch-screen) Selection can transmit electronic controller.Electronic controller can transmit control signals to electronic flow control valve, with based on passing through The flow for the one or more fluids of selection control that screen display device is made.

According to various embodiments, in direct flow control model, user can directly input numerical value to select balanced gas The flow of (air or nitrous oxide), and input numerical value to select the flow of oxygen by screen display device.Numeral is aobvious Showing device (can be screen display device simultaneously) can show the selection 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 other numerical value, chart, figure, percentage and similar information.

In total flow control model, user can input numerical value to select selected balanced gas (air or nitrous oxide) It is dense with the total flow of transmission oxygen, and the oxygen that input numerical value selection is mixed with balanced gas (air or nitrous oxide) Degree.In various embodiments, total flow control model or direct flow control model may be selected in user.Screen display device can connect Inputted by by touch, voice, mouse, keypad, joystick, and/or other periphery input equipment offers.

Although the electronic flow control of gas can be beneficial to anesthesia transmission, anesthesia Transmission system, which may also have, enables hand Move the demand of standby control.For example, Transmission system is anaesthetized during transmission is anaesthetized loses supply of electric power, now such as to continue supply Gas will use stand-by machine control.In certain embodiments, the electricity of the adjustment knob that such as matching coding device is used etc Sub-controller, can be easy to carry out electronics adjustment to the flow of one or more gases during transmission is anaesthetized.And separated set The standby Traffic selector (such as knob) put can be enabled in power failure or power-off event.In these embodiments, operator Need to operate standby knob, machine is switched to manual mode from electronic pattern, and can also be incited somebody to action before manual mode is switched to Manual knob, which is set, arrives suitable state.

Particularly perform the operation in medical procedure, during first aid etc. concerns the treatment program of patients ' lives, during anesthesia of patient Power down is easily 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 row gas can make us feeling inconvenience and/or disturb the judgement.In the various embodiments of the application, such as turn knob Traffic selector can carry out electronic operation when fluid flow control system is in power-up state, and when fluid flow controls system When system is in power-up state, standby stream selector is deactivated or stashed.Because electronic selector functionally with flowing manually Selector is measured similar, so the fascination thus brought can be reduced.It is standby in power-down state, or during operator's operation 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 part can be respectively with controllable gas (or liquid) kind number it is corresponding.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, the anesthetic gases evaporated with anesthesia evaporator supplies patient after being mixed.

In one embodiment, the bootable gas of valve system (or liquid) stream is turned to from source of the gas to such as Mechanical course needle-valve Mechanical flow control valve, or such as electronic proportioning valve electronic flow control valve, this will depend on anesthesia Transmission system whether Whether upper electricity or back-up system start.

According to various embodiments, turning to valve system may include normally opened and normally close valve, and it is used to optionally prevent gas stream Flowed out to mechanically actuated needle-valve or electronic operation proportioning valve, or from mechanically actuated needle-valve/electronic operation proportioning valve.The switching valve system Various valves and/or control system can be used to realize for system, such as triple valve.

In certain embodiments, needle-valve can be used to be walked as mechanical flow control valve, and same needle-valve combination electronics Stepper motor can be used as electronic flow control valve.In various embodiments, Traffic selector can be various knobs, button, rotation Actuator, sliding block, and/or other analog and/or digitals selection 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 be distinguished with the electronic unit of other in gas Flowrate Control System and set or separate, These electronic units include microprocessor and other ministrys of electronics industry associated with display, touch-screen, data storage, data cube computation etc. Part.The reliability of electronic flow control device can by by electronic flow control device from anesthesia transmission equipment other electronic dies Separate to improve in block, or realize by hardware rather than software realize to improve reliability.

Although various examples and embodiment in the application are described by taking gas Flowrate Control System as an example, That described many embodiments also directly or can be changed and be used in any kind of fluid, including various gases and Liquid.For the gas of anesthesiaing system, such as oxygen, nitrous oxide and air are also to be as description flow control system Specific example during gas Flowrate Control System.

Embodiments of the invention can be implemented by common universal architecture, such as all-purpose computer, computer programming work Tool and technology, digital storage media and communication network.Computing device and other electronic controllers may include various forms of places Manage device, such as microprocessor, microcontroller, logic circuit, and/or similar part.Processor can also be that dedicated processes are set It is standby, such as application specific integrated circuit (ASIC), programmable logic array (PAL), programmable logic array (PLA), FPGA Equipment (PLD), FPGA or other customizable and/or programmable devices.Computing device may also include computer-readable storage and set It is standby, such as nonvolatile storage, static state RAM, dynamic ram, ROM, CD-ROM, disk, tape, magnetic, optics, flash memory or its His machinable medium.Can be used hardware, software, firmware or they with reference to come various described by realizing embodiment Technical scheme.

For ease of the detailed understanding to the present invention, the various implementations of the application are described in detail below in conjunction with Figure of description Example.For the sake of simplicity, element similar in different embodiments is represented with similar label.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 the feature in other embodiment, structure, step etc. or Intersect and replace and obtain variant embodiment.In order to avoid the main purpose of the present invention thickens in the text, eliminate and this Invent the specific descriptions of the related known features, method of this area 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 domain shown, and the only representative of possible embodiment.In addition, the step of method and need not be specific suitable by certain Sequence is performed successively, and these steps are also not necessarily limited to be only performed once.

Fig. 1 shows a kind of Anesthesia machine of three manual flow selectors 150 (manual flow selectors) of configuration 100 (anesthesia delivery machine), wherein each selector 150 is used to control oxygen, nitrous oxide and sky The flow of gas.The Anesthesia machine 100 may include respiratory system 110 (breathingsystem), anesthesia evaporator 130 (anesthetic gas vaporizers), and/or anesthesia respiratory system other optional components.Such as, the Anesthesia machine 100 Trolley 140 (cart) and/or wheel 145 (wheels) are may also include, in order to carry, Anesthesia machine is moved.Electronical display is filled The information of transmitting procedure can be provided on flow and/or anaesthetize to operator by putting 120 (electronicdisplay).In addition, electric Sub- display device 120 can assemble touch-screen with allow operator by indicator screen input the operation that is associated with display content and Selection.Manual flow selector 150 said herein is alternatively referred to as electronic flow selector, is to coordinate rotary encoder etc. to realize electricity The manually operated part of confession user of subflow amount control, user passes through the operation to selector 150, realizes and is adjusted with mechanical flow The similar operating experience of section, but the operation of user can't the needle-valve of directly control machinery formula adjust flow, but system The input of user is converted into electronic signal and controls electronic type again by the elements such as the internal rotary encoder coordinated with selector 150 Proportioning valve is to realize Flow-rate adjustment.

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 may correspond to the kind number for the fluid to be controlled.Then, can be based on controlled gas (or other streams Body) kind number use 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), available for optionally control oxygen, nitrous oxide, air three kinds of gases Each.The Anesthesia machine 200 also includes three standby (backup manual flow of manual flow selector 260 Selectors), for control three kinds of gases each.The Anesthesia machine 200 may include respiratory system 210, anesthesia evaporator 230, and/or anaesthetize Transmission system other optional components.Such as, the Anesthesia machine 200 may include trolley 240 and/or wheel 245 to be easily moved.Electronic display unit 220 can provide on flow and/or anaesthetize the information of transmitting procedure to operator.This Outside, electronic display unit 220 may include touch display screen.Manual flow selector 260 mentioned here be then it is mechanical, i.e., Selector 260 is engaged with the mechanical needle-valve of internal system, by the operation of selector 260 can directly control needle-valve with Realize the regulation of flow.

When Anesthesia machine 200 is in electronic pattern, three standby manual flow selectors 260 can keep disabling or retracting To the state of internal system.When Anesthesia machine 200 enters manual mode (for example, because power down is automatically into manual mode or user Voluntarily selection enters manual mode), three standby manual flow selectors 260 can be ejected, unlock or enabled.Accordingly, as before The various internals, 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 coordinate the gas flow in regulation Anesthesia machine 200.

In electronic pattern, standby manual flow selector 260 can be stowed away, lock, disconnecting, and/or be unavailable.Here Packing up can refer to selector 260 being designed as the structure that can eject/retract, be then hidden in when that need not use in system Portion.Now, 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 produce 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 flowcontrol valves) and standby Mechanical flow control valve 301,302 and 303 (backup mechanicalflow control valves), for controlling oxygen 321 (oxygen), nitrous oxide 322 (nitrousoxide) and air 323 (air) flow.When passing through AC power 360 When the power supply that (AC supply) and/or battery 361 (batteries) are obtained is available, anesthesia Transmission system selection passes through one Or the electronic flow control valve 301,302 and 303 of multiple electronic flow selectors control controls each road gas flow.Power supply is defeated Enter optionally to be changed or inversion by power panel 379 (power board) and/or mainboard 375 (motherboard) (electronic component needed for being changed, module are provided with power panel, mainboard).Gas flow plate 350 may include various monitoring And/or control assembly, for the gas flow in electronic monitoring, regulation, 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 field programmable gate arrays (FPGA), centre Manage device (CPU), microprocessor, logic circuit, drive circuit, digital analog converter, analog-digital converter, drive circuit, motor driving Device, power switch, input equipment, optical sensor, visual indicator lamp, display device, solenoid, stepper motor, touch pad, And/or peripheral component.In addition, gas flow plate 350 may include or be connected to that various motor position switches, LED, needle-valve are opened Pass, source of the gas, and/or other selection input units.Operator can be by providing the behaviour for being used for controlling one or more gas flows Make input to interact with Anesthesia machine.For example, operator can be controlled by the input of electronic flow selector to flow The operation of system.Electronic flow selector may include mechanical rotatable knob and rotary encoder.

Similarly, operator can be by touch panel display device or with showing that the periphery input equipment associated provides input. Screen control device and/or electronic flow selector can allow operator in described total flow control model or direct flow The flow of one or more gases is selected in control model.

When anesthesia Transmission system is in power-up state, user can use the system under electronic pattern, or can select hand Dynamic model formula.When anesthesia Transmission system is in power-down state, the anesthesia Transmission system can be used 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 va1ve).

User may be selected to be supplied to the oxygen of patient and the flow of air gas mixture (air is as balanced gas).User The flow for replacing air supply to the nitrous oxide of patient also may be selected (now nitrous oxide is used as balanced gas).At certain In a little embodiments, air can be used as balanced gas simultaneously with nitrous oxide.Under manual mode, selected no matter what user makees, symbol Closing the amount of oxygen of safety requirements can be ensured to be supplied to patient automatically by oxygen ratio controller (ORC) 325.Can under electronic pattern The security of operation is ensured by controlling circuit.

In various embodiments, user can be started gradually to increase gas into total flow from zero delivery and while observe every Influence of the gas for total flow is planted, so as to be finally reached the target rate of oxygen 321, nitrous oxide 322 and air 323. In other variant embodiments, user is every since three road gases are adjusted 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 ensure the ratio of the clinically oxygen of safety and nitrous oxide.Check-valves 330 can be prevented by potential high Press each road gas backstreaming caused by following current.

In any flow control mode, after check-valves 330, the air-flow of three kinds of gas can merge as 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).(the three- of triple valve 335 can be used Way selector valve) select to connect with mass flow meters 337 using the corresponding air flow path of pattern with current system, example Such as from stand-by machine flow control valve 301,302,303 and electronic flow control valve 311, one of 312,313 two groups guiding gas Stream flows through.Optionally, triple valve is alternatively into one or more normally opened and/or normally close valve combination.The switching valve of other forms System can be used for substituting triple valve 335 and/or normally opened and/or normally close valve.

Under electronic pattern, the flow control selections device associated with stand-by machine flow control valve 301,302 and 303 can quilt Disable or be retracted into internal system.According to system, whether whether power down or user have selected corresponding operating, system it is automatic or Manual mode is entered according to instruction, then the flow control selections device now associated with needle-valve 301,302 and 303 can be activated, bullet Go out, unlock etc. and can use.Some elements for being listed in the anesthesia Transmission system 300 of component description part 390 are not detailed in the description State.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 device, can as needed add, supplement and/or instead of in shown system Component.

Fig. 4 is a kind of partial enlarged drawing of Anesthesia machine control panel 400 (control panel), including two electron streams Selector 415 and 417 (electronic flow selectors) is measured, direct flow control mould is optionally configurable to Formula (direct flow control mode) is directly to control oxygen and nitrous oxide or oxygen and air.As illustrated, Selecting switch 470 is used for the flow for selecting control oxygen and which kind of balanced gas, e.g. selection control oxygen and an oxidation two The flow of nitrogen, or selection control the flow of oxygen and air.Mode tag 480 shows flow control used in current system It is direct flow control model that present mode is shown in mode, Fig. 4.As illustrated, the Anesthesia machine may include panel 430 (panel) with show the various remote measurements/detection data associated with patient, the information associated with gas flow, and/or with one or The information of multiple anesthetic release associations.440 (inputs, or option/label/button) of various available inputs can change panel 430 display content or form, and/or control the work of Anesthesia machine.In certain embodiments, panel 430 can provide screen control Device processed is used for the flow that operator selects gas, such as comprising touch-screen display.

In the first bit selecting, selecting switch 470 (selection toggle) can allow operator to pass through respective electron stream Selector 415 and 417 (or by touch display unit in panel 430) is measured to control the flow of oxygen and nitrous oxide. In the second bit selecting, selecting switch 470 can allow operator to control oxygen and air by respective Traffic selector 415 and 417 Flow.The position selected according to selecting switch 470 by user, various traffic monitoring equipment and ratio measure equipment 420 (ratio measuring devices) can show one or more gases and/or the flow of combination of gases.In various embodiments In, there can also be 450 (the auxiliary inputs of auxiliary input and output of control oxygen and/or another gas andoutputs)。

Although the embodiment of diagram illustrates two electronic flow selectors 415 and 417, arbitrary number and gas can be used The Traffic selector of body association.For example, configurable flow control system makes it have 1,2,3,4...... or N kinds gas or liquid The electronics of body and the control of standby manual flow.In certain embodiments, can configure more than one Traffic selector (e.g., knob, Toggle switch, dial, sliding block, switch) the same gas of control flow.More selecting switch 470 can be used and/or similar Many bit selecting selecting switch come select can by flow control selections knob control arbitrary number and combination gas.Flow is selected Device may include and/or using any analog or digital selection mechanism for selection flow, including the knob shown in figure.

When mode tag 480 shows that system is in direct flow control model, first flow selector 415 can be used in user To directly select the flow of nitrous oxide or air, specifically nitrous oxide or air is controlled then to be determined by selection Which kind of balanced gas switch 470 selects.The flow of oxygen is directly selected using second flow selector 417.As described above, with Electronic flow selector 415 and 417, which distinguishes corresponding rotation encoder, to be encoded to the selection signal that Traffic selector is exported. Electronic controller then can according to the selection signal after coding by the electronic flow control valve of such as electronic proportioning valve etc come Control the flow of each gas.

For every kind of controlled air, number can be shown by way of direct flow (such as liter/min) or percentage specific discharge Value 460 represents 420 (graphicalrepresentations) with 475 (numeric values) and the figure associated.Replace Dai Di, numerical value 460 and 475 and/or figure represent the ratio of the 420 selected flows that can show every kind of gas, total flow, two kinds of gas Rate, relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage and with flow associate it is similar Information.In the embodiments illustrated in the figures, display nitrous oxide accounts for a quarter (1/4 or 0.25) of total gas flow rate, and Oxygen accounts for 3/4ths (3/4 or 0.75) of total gas flow rate.

Fig. 5 show a kind of Anesthesia machine control panel 500 (control panel) partial enlarged drawing, and it includes two Electronic flow selector 515 and 517 (electronic flow selectors), is optionally configurable to total flow control Molding formula (total flow control mode) with directly control oxygen and nitrous oxide total flow and oxygen concentration, Or the total flow and oxygen concentration of oxygen and air.As indicated, Anesthesia machine may include panel 530 (panel) with display and patient Various remote measurements/detection data of association, the information that is associated with gas flow, and/or discharged with one or more anesthetic is associated Information.Panel 530 may also provide the screen display device or menu button of touch-control, for allowing user's additivity The function of realizing the control gas flow of electronic flow selector 515 and 517 of alternative living.Other inputs 540 can also be passed through (inputs) display and/or the control Anesthesia machine of panel 530 are changed.

In the first bit selecting, selecting switch 570 (selection toggle) can allow operator to pass through each electronic flow Selector 515 and 517 controls the flow of oxygen and nitrous oxide, that is, shows that the balanced gas that now user's selection is controlled are one Nitrous oxide.In the second bit selecting, selecting switch 570 can allow operator to control oxygen by each Traffic selector 515 and 517 With the flow of air.The position clicked according to selecting switch 570, various traffic monitoring equipment and ratio measure equipment 520 (ratio measuring devices) can show one or more gases and/or the flow of combination of gases.In various embodiments In, there can be 550 (the auxiliary inputs and of auxiliary input and output of oxygen and/or another gas outputs)。

Although illustrated embodiment shows two electronic flow selectors 515 and 517, any number of stream can be used in system Measure selector and control any number of gas accordingly.For example, configurable flow control system is to allow using 1,2,3, 4... or N kinds gas or liquid electronics and standby manual control.In certain embodiments, it can configure the selection of more than one flow Device (such as knob, toggle switch, dial, sliding block, switch) is to control the flow of same gas.More more options can be used to open Close 570 and/or many bit selecting selecting switch control the number of the gas by the correspondence flow control selections knobs control of any number. Traffic selector may include and/or is used to select flow, including the rotation shown in figure using any analog or digital selection mechanism Button.

Mode tag 580 shows that system is in total flow control model in figure, and the first electronic flow can be used to select for user Device 515 is selected to adjust the total flow of gas.That is, the first electronic flow selector 515 can be used adjust oxygen with it is selected The total flow of balanced gas (air and nitrous oxide).The second electronic flow selector 517 can be used to control to put down with selected The oxygen concentration that the gas (air or nitrous oxide) that weighs is mixed, specifically nitrous oxide or air is then determined by choosing Select which kind of balanced gas switch 570 selects.The selection operation exported by selector can be encoded and passed by rotary encoder It is sent to electronic controller.Oxygen and balanced gas ratio and the flow needed can be calculated by electronic controller.Electronic Control Device then can control the electronic flow control valve of such as electronic proportioning valve etc to control each gas according to the selection signal after coding The flow of body.

Numerical value 560 represents 520 with 575 (numeric values) and the figure associated (graphicalrepresentations) direct flow (such as liter/min) or percentage flow of controlled air can be shown.Replace Dai Di, the numerical value 560 and 575 and/or figure represent the 520 selected flows that can show every kind of gas, total flow, two kinds of gas Ratio, relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage, and similar information.

In the illustrated embodiment, it is shown that selecting switch 570 selects nitrous oxide as the situation of balanced gas.The One electronic flow selector 515 is by total flow selection for 10.0 (L/min, liter/min).The total flow of display can be free of unit and Only display numerical value, is measured by liter/min, kg/min, and/or other volume or weight units and the ratio of time. The second electronic flow selector 517 can be used to select oxygen to account for the percentage (being shown as 60%) of total gas couette, i.e., oxygen is dense Degree.

Fig. 6 show a kind of Anesthesia machine control panel 600 (control panel) panoramic view, including can be in bimodulus The electronic flow selector 615 and 617 (dual mode electronic flowselectors) that is operated under formula and it is used for (the backup mechanical flow of stand-by machine volume control device 681,682 of three kinds of gas flows of independent control controls).When anesthesia Transmission system is operated in Electronic Control pattern, two Hes of electronic flow control selections device 615 can be used 617 control oxygen and nitrous oxide or oxygen and air under institute's lectotype.

In addition, in Electronic Control pattern, the screen operator display device in panel 630 (panel) can be used for allowing User selects the flow of oxygen and nitrous oxide or air.Electronic display unit 630 may also display and one or more gases Flow, anesthetic, and/or patient telemetry/Monitoring Data association information.System can include various touch input devices 640 (touch inputs).Auxiliary control panel 650 (auxiliary control panel) can allow one or more gases to supply Auxiliary equipment should be arrived.

Direct flow control model or total flow control model can be selected by mode selector.Mould is controlled in direct flow Formula, the first electronic flow selector can be used directly to adjust balanced gas, includes the flow of nitrous oxide or air.It can be used Second electronic flow selector directly adjusts the flow of oxygen.The numeric display unit 630 associated with selected flow can be shown often The flow of kind of gas, total flow, the ratio of two kinds of gas, relative to the total flow of optimal flux, and/or other numerical value, chart, Figure, percentage and similar information.The numeric display unit 630 may also allow for pair flow associated with every kind of gas, total stream Amount, gas flow ratio etc. carry out digital selection, for example, directly input some parameter for wanting to reach by screen shortcut menu.

Similar system can be used in total flow control model.In total flow control model, the first electron stream can be used Measure the total flow that selector adjusts gas, including selected balanced gas (air or nitrous oxide) and the flow of oxygen.Can Using the control of the second electronic flow selector with selecting the oxygen concentration that balanced gas (air or nitrous oxide) are mixed.The choosing Electronic controller can be encoded and be sent to by one or more rotary encoders by selecting.Gas ratio can be calculated by electronic controller With the flow of needs.Electronic controller then can be according to electronics of the selection signal after coding by such as electronic proportioning valve etc Flow control valve controls the flow of each gas.

Numerical value and the figure associated represent to be shown as the percentage of direct flow (e.g., liter/min) or every kind of controlled air Specific discharge.Alternatively, numerical value and/or figure represent to show the ratio of the selected flow of every kind of gas, total flow, two kinds of gas Rate, relative to the total flow of optimal flux, and/or other numerical value, chart, figure, percentage and similar information.Display dress Putting the screen operator device in 630 can allow that user carries out numerical value to flow and/or other are digital control, and details are as follows.

When anesthesia Transmission system is in power-down state and/or user voluntarily selects manual mode to operate, anesthesia transmission System can 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) is controlled.Electronic display unit 630, touch input device 640, electronic flow control Selector 615 and 617 processed and other electronic building bricks are all unavailable in power-down mode, when what is artificially selected in power-up state In manual mode 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 manually operated flow control choosings Select device 681,682,683 (manually operated flow controlselectors).According to various embodiments, manually Operation flow control selections device can be used for controlling every kind of available gas or every kind of key gas.In various embodiments, anesthesia is worked as When Transmission system is in electronic pattern, manually operated flow control selections device 681,682 and 683 can be deactivated, disable, locking, And/or it is inoperable.In manual mode, manually operated flow control selections device 681,682 and 683 can be activated, eject, solving Lock, and/or operable.

Fig. 7 A show a kind of local screen's display interface 700 (on-screen display) of Anesthesia machine, and it, which is configured, uses In allowing user by shortcut menu under total flow control model, i.e., mode tag 715 is shown as total flow control model Oxygen (oxygen) and balanced gas (balance gas) (air or oxygen is selected when (total flow control mode) Change phenodiazine) relative discharge.The setting that the mixing of oxygen and balanced gas is commonly referred to as in live gas, present embodiment allows User directly sets fresh gas flow by the shortcut menu of screen display, and specifically settable item includes oxygen or Balance Air The flow of body, concentration of oxygen etc..As illustrated, the screen display interface 700 may include various icons, panel, button, dial Dynamic button, input field, and/or other inputs and display.In an illustrated embodiment, screen display interface 700 can be graphical user Interface, it is configured to one or more hardware adaptors and/or interacted by touch screen interface.Screen display circle Face 700 can the instruction based on execution system processor various information are shown on electronic display unit.The instruction can be stored in respectively Plant in non-volatile media.

Screen display interface 700 is can configure to allow the flow of the one or more fluids of operator's control.User can pass through Mode tag 715 selects direct flow control model or total flow control model.Fig. 7 A-7D are shown as at mode tag 715 Total flow control model, and Fig. 8 A-8B are shown as direct flow control model at mode tag 815.

As shown in Figure 7 A, when mode tag 715 shows that system is in total flow control model, user can be in flow label The total flow of live gas is selected at 730.In (may bring up by clicking flow label 730) on-screen keyboard 750 (keypad) The desired flow number of input field input, or increase or decrease by down arrows 760 the total of mixed gas (live gas) Flow.The selection of oxygen concentration/flow can be also carried out at concentration label 740.According to various embodiments, flow label 730 Representation can be total flow numerical value, the representation of concentration label 740 can be oxygen account for total flow ratio or Percentage.Additionally or alternatively, the numerical value corresponding to oxygen flow can be provided simultaneously.Oxygen stream under total flow control model Numerical quantity is that the total flow control signal and oxygen concentration control signal that system is inputted according to user are calculated.Implement various In example, shortcut panel 720 may include several shortcuts 721,722,723 and 724 (quickkeys).Each shortcut 721st, 722,723 and 724 can allow user quickly to select the specific flow of oxygen as shown in the figure.These shortcuts are corresponding quick Selection can be some the most frequently used flow sets of user.In alternative embodiments, can also configure one or more shortcuts with Allow the selection of total flow.

Flow label 730 can show total flow, i.e., the summation including oxygen Yu balanced gas flow.Balanced gas select face Plate 710 (balance gas selection panel) can allow the species of user's selection balanced gas.In shown embodiment In, any balanced gas are not selected, can 100% supply oxygen.In other examples, maximum can be maintained to allow oxygen Ratio, and balanced gas can be automatically selected as nitrous oxide or air.

Fig. 7 B show a kind of screen display interface 700, are to occur in that Balance Air with interface difference shown in Fig. 7 A Three sub- options of body.Show that system is in total flow control model at mode tag 715, user can be selected by interface 700 The relative discharge of oxygen 740 and balanced gas 730 is selected, balanced gas Selection Floater 710 is included containing the son choosing of specific balanced gas The drop-down menu (drop down menu) of item.As illustrated, the balanced gas in various embodiments can be air or an oxidation Phenodiazine.Show/set by the balanced gas of the drop-down menu selection of balanced gas Selection Floater 710, by total flow label 730 The total flow put, the oxygen concentration/flow for showing/setting by oxygen concentration label 740, its specific operation can be by touching Interface, mouse, joystick, phonetic entry, gesture, and/or pass through other diversified external input equipments input.

Screen display interface 700 shown in Fig. 7 C, it is shown that oxygen concentration label 740 is set to 50% illustrative case, table It is 50% to show oxygen concentration.Total flow label 730 shows that total flow (oxygen and balanced gas) is arranged to 5.0 liters/min.Can be Selection nitrous oxide is used as balanced gas in balanced gas Selection Floater 710.In (the intermediate of middle column 703 Field, or input field) middle input median 6.0.According to various embodiments, can by user by the input system of median 6.0 from And total flow label 730 is configured to, so that the total flow of anesthesia Transmission system is configured to 6.0 liters/min.Electronic controller, bag Processing equipment is included, flow can be determined the need for every kind of fluid according to the input of user and appropriate electronics control is transmitted a control signal to Valve processed is so that system reaches selected flow.For example, in a specific example, user is under total flow control model by total flow Increase to 6.0 liters/min from 5.0 liters/min, the processor that oxygen concentration is set as in 50%, system can transmit into signal arrives The flow of oxygen and nitrous oxide is increased to 3.0 liters/min by each electronic control valve from 2.5 liters/min.

As another example, if user increases to the ratio of oxygen from 50% at oxygen concentration label 740 60% and maintain 5.0 liters/min of total flow, then system by calculating by the flow for controlling oxygen increase to 3.0 liters/min and one The flow-reduction of nitrous oxide is to 2.0 liters/min.It is therefore seen that, in total flow pattern, change what is associated with oxygen flow Single input can cause system to calculate the need for two or more gases flow automatically and logical with appropriate electronic flow control valve Believe to reach desired flow and gas ratio.

Screen display interface 700 shown in Fig. 7 D is similar with content in above two figures, and the main distinction is it in balance Air (Air) is selected to be used as balanced gas at gas Selection Floater 710.Information at input field 703 is blank, total flow Label 730 is shown is arranged to 6.0 liters/min by total flow.At oxygen concentration label 740, oxygen ratio/concentration is arranged to 25%.Therefore, related elements can transmit a signal to each corresponding electronic flow control valve according to this setting to incite somebody to action in system Oxygen flow is reduced to 1.5 liters/min, by the flow-reduction of nitrous oxide to 0.0 liter/min, and by the flow of air Increase to 4.5 liters/min.

Shown at screen display interface 800 shown in Fig. 8 A (on-screen display), its mode tag 815 at system In direct flow control model (direct flow control mode), the stream of oxygen is selected by oxygen flow label 840 Amount, the flow of balanced gas is selected by balanced gas flow label 830, so as to reach control total flow and two kinds of gas ratios Effect.Air is have selected in embodiment corresponding to this figure as balanced gas.As illustrated, the screen display interface 800 It may include various icons, panel, button, button handsetting, input field, and/or other inputs and show.In the illustrated embodiment, Screen display interface 800 can be graphic user interface, and by one or more peripheral interface equipments and/or can pass through touch-screen Interface carries out man-machine interaction.The instruction that can be produced based on processor inside and outside system display screen on electronic display unit shows boundary Face 800.The instruction can be stored in various non-volatile medias.

User can control the flow of one or more fluids, such as gaseous air, oxygen by screen display interface 800 Gas, nitrous oxide.User can select direct flow control model or total flow control model at mode tag 815.Fig. 8 A- 8B show the screen display interface 800 in direct flow control model.According to various embodiments, user can be using preceding or make Switch between total flow control model and direct flow control model.In certain embodiments, model selection can be used Interface selects flow control mode.The model selection interface can be embodied in various ways, and include screen, the Pop-up pair of separation Talk about frame, icon, button, pull-down menu, radio button, and/or similar fashion.

As shown in Figure 8 A, in direct flow control model, user can select every kind of gas respectively at label 830 and 840 The flow of body.The on-screen keyboard 850 (keypad) with input field can be used to make to input numerical value, or at label 830 and 840 The flow of every kind of gas is increased or decreased respectively with up/down arrow 860 (up/down arrows).In certain embodiments, Flow can be specially the weight or volume in a period of time.In other examples, it can also show that fluid flows with respect to other The ratio (gas ratio or concentration can be referred to as) of body or total flow.The number corresponding to the specific flow of every kind of gas can be shown Value.In various embodiments, shortcut panel 820 (quick key panel) may include several shortcuts 821,822,823 With 824 (quick keys).It is pre-set each that each shortcut 821,822,823 and 824 can allow user quickly to select Kind parameter, i.e. a key, which fast set various gases, includes the specific flow of oxygen.It is same configurable in the variant embodiment having One or more shortcuts are used for the selection of balanced gas flow.(the balance gas of balanced gas Selection Floater 810 Selection panel) user can be allowed to select balanced gas, in the illustrated embodiment, select air conduct Balanced gas.

Screen display interface 800 shown in Fig. 8 B shows that system has selected nitrous oxide and has been used as balanced gas.Can at other In variant embodiment, the label similar with 840 with label 830 can be used for the flow of other available gas beyond control diagram, Exactly when system is used to control other various gases, flow label can be set to similar with this figure embodiment.Some In embodiment, icon, button, column or similar fashion can be provided on screen display interface 800 to select anesthetic, anesthetic Dosage, and/or anesthetic transmission/anesthesia ventilation timing.

What the embodiment shown in Fig. 7 A-8B was merely exemplary, the purpose is to show total flow control model and directly stream Function and the difference of control model are measured, and is not the specific layout or outward appearance of graphic user interface, the layout at interface is with outward appearance It can be changed or change according to actual needs.In addition, the screen display interface may include any number of supplementary features, letter Cease details, control, figure, numerical value, and/or with supply, flow, rate of release and/or Anesthesia machine other in terms of it is associated Other information.

Fig. 9 A show an a kind of schematic diagram of Anesthesia machine screen display interface 900 (on-screen display), its Relative discharge for selecting oxygen and balanced gas in total flow control model.As indicated, display 950 (display) Screen interface can be provided to select to provide/be transferred to the total gas flow rate of patient and with oxygen concentration, ratio and/or specific The oxygen flow of value form.The function of screen interface and foregoing combination Fig. 7 A-8B those embodiments described and various combinations It is similar.

In addition to showing screen display interface as depicted on display 950, Anesthesia machine can be on display 950 Show the various remote measurement/Monitoring Datas associated with patient, the information associated with gas flow, and/or anaesthetized with one or more The related information of agent transmission.The shown content of display 950, and/or control can be changed with 930 (inputs) of various inputs Make the Anesthesia machine.

In first position, i.e., balanced gas are selected to be an oxidation two by selecting switch 970 (selection toggle) Nitrogen, can allow operator to pass through the screen of display 950 and/or each electronic flow selector 915 and 917 (electronic Flow selectors) control oxygen and nitrous oxide flow.Selection is shown as in the second place, i.e. selecting switch 970 Air can allow operator to be controlled by the screen of display 950 and/or each Traffic selector 915 and 917 as balanced gas The flow of oxygen and air processed.The species of balanced gas depends on the position of selecting switch 970, various traffic monitoring equipment (ratio measuring devices, or concentration are surveyed for (flow ratemonitoring devices) and ratio measure equipment Amount equipment) 905 and 920 it can show one or more gases and/or the flow of combination of gases.

Although diagram embodiment presents two electronic flow selectors 915 and 917, any number of flow can be used Selector with associate gas.For example, configurable flow control system is to allow using 1,2,3,4... or N kinds gas or liquid Electronics and standby manual control.In certain embodiments, can configure more than one Traffic selector (for example knob, toggle switch, Dial, sliding block, switch) to control the flow of same gas.Additional selection switch 970 and/or the selection of many bit selectings can be used Switch to control the number of the gas by the correspondence flow control selections knob control of any number.Traffic selector may include and/ Or use any analog or digital selection mechanism, the knob including but not limited to shown in figure.

In total flow control model, the total flow of gas is adjusted using the first electronic flow selector 915.It is exactly Say, the first electronic flow selector 915 can be used to adjust the total of oxygen and selected balanced gas (air and nitrous oxide) Flow.The second electronic flow selector 917 can be used to control what is mixed with selected balanced gas (air or nitrous oxide) Oxygen concentration/ratio.The selection can be encoded by rotary encoder and be sent to electronic controller.Concentration/ratio and needs Flow can be calculated by electronic controller.Electronic controller may then use that the selection signal after coding passes through such as electronics The electronic flow control valve of proportioning valve etc controls the flow of each gas.

Numerical value and the avatars of association 905 and 920 can be shown as every kind of controlled air direct flow (for example rise/ Minute) or percentage flow.Alternatively, the numerical value (numeric values) 905 and/or figure represent (graphical Representations) the ratio of the 905 selected flows that can show every kind of gas, total flow, two kinds of gas, relative to optimal The total flow of flow, and/or other numerical value, chart, figure, percentage, and similar information.

In the illustrated embodiment, display 950 shows the balanced gas of air alternatively.First electronic flow is selected Device 915 by total flow selection be 2.0, illustrate only here total flow be free of unit numerical value, total flow be actually by liter/min Clock, kg/min, and/or other volume or weight units and the ratio of time measure.The second electron stream can be used The amount selection oxygen of selector 917 accounts for the percentage (being illustrated as 75%, also referred to as concentration) of total gas couette.

Fig. 9 B show a kind of panoramic view of Anesthesia machine screen display 950, and it is used in direct flow control model The relative discharge of lower selection oxygen and balanced gas.As illustrated, under direct flow control model, the selection of the first electronic flow The flow of air is set to 0.5 liter/min by the control interface of device and/or screen display 950.Second electronic flow selector And/or the flow of oxygen is set to 1.5 liters/min by the control interface of screen display 950.Balanced gas selecting switch 970 and/ Or the balanced gas Selection Floater 953 in screen display 950 can be used for selection nitrous oxide or air to be used as balanced gas. In other examples, it can be used and control diversified gas and liquid.

According to any one of various embodiments described herein, various gas flow control systems are can be applied to System.In the above-described embodiment, gas Flowrate Control System is embodied in the part of anesthesia Transmission system.In these embodiments In, the mixed airflow of one or more gases can inject or add anesthetic, such as be evaporated liquefied anesthetic by evaporator Patient is conveyed to after being mixed afterwards with foregoing gas.

Use above specific case is set forth to the principle and embodiment of the various examples of the application, and the above is real The explanation for applying example is only intended to help and understands the application；Simultaneously for those of ordinary skill in the art, according to above-mentioned example, It will change in specific embodiments and applications, in summary, this specification content should not be construed as to this The limitation of application.

Claims (19)

1. a kind of electronic flow control system, it is characterised in that including：

First electronic flow control valve, the flow for optionally controlling first fluid；

Second electronic flow control valve, the flow for optionally controlling second fluid；

Processor；And

With the non-volatile computer readable storage medium storing program for executing of the processor communication, the computer-readable recording medium includes control The instruction of the computing device flow control methods, the flow control methods include：

Show graphic user interface；

Receive the mode select signal of direct flow control model and total flow control model alternative；

When have selected total flow control model, receive to the total flow of the first fluid and second fluid, to second fluid Account for the input signal that the ratio of total flow is adjusted；And

When have selected direct flow control model, reception is entered respectively to the flow of the first fluid and the flow of second fluid The input signal of row regulation；And

Transmit a control signal to first electronic flow control valve and the second electronic flow control valve, and based on receiving Input signal accordingly controls the flow of the first fluid and second fluid；

Standby Traffic selector, for controlling needle-valve to realize the regulation of flow；The standby Traffic selector is can be stowed away Mode set, when system power failure, electronics and mechanical breakdown, the ejection of standby Traffic selector is retracted when that need not use.

2. electronic flow control system as claimed in claim 1, it is characterised in that the second fluid is oxygen.

3. electronic flow control system as claimed in claim 1, it is characterised in that the first fluid be nitrous oxide or Air or its mixing.

4. the electronic flow control system as described in claim 1 or 3, it is characterised in that the system also includes being used to select The selecting module of first fluid species.

5. electronic flow control system as claimed in claim 1, it is characterised in that the graphic user interface includes Balance Air Body Selection Floater, for allowing to elect the one or more in nitrous oxide and air as first fluid.

6. electronic flow control system as claimed in claim 1, it is characterised in that the graphic user interface includes at least one Individual shortcut, at least one particular preset flow for directly selecting second fluid.

7. electronic flow control system as claimed in claim 1, it is characterised in that the graphic user interface is selected including pattern Interface is selected, for selecting direct flow control model and total flow control model one of which.

8. electronic flow control system as claimed in claim 1, it is characterised in that the graphic user interface includes：

First input field, when system is in total flow control model, the first input field is used to receive the control first fluid With the input signal of second fluid total flow；And

When system is in direct flow control model, the first input field is used for the input for receiving the control first fluid flow Signal；And

Second input field, the input signal for receiving the control second fluid flow.

9. electronic flow control system as claimed in claim 1, it is characterised in that the input signal is from the graphical user The numeric keypad that interface is included is inputted with numeric form.

10. electronic flow control system as claimed in claim 1, it is characterised in that first electronic flow control valve and/ Or second electronic flow control valve be electronic proportioning valve.

11. electronic flow control system as claimed in claim 1, it is characterised in that also including evaporator,

For being injected into after anesthetic is evaporated at least one of the first fluid and second fluid.

12. a kind of electronic flow control system, it is characterised in that including：

First electronic flow control valve, the flow for optionally controlling first fluid；

Second electronic flow control valve, the flow for optionally controlling second fluid；

Processor；And

With the non-volatile computer readable storage medium storing program for executing of the processor communication, the computer-readable recording medium includes instruction Cause the computing device method, methods described includes：

Show graphic user interface；

Receive the selection of the first and second fluids total flow；And

Receive the selection of the second fluid flow；And

Transmit a control signal to first and second electronic flow control valve, and the selection of the flow based on the reception, control Make the flow of first and second fluid；

Standby Traffic selector, for controlling needle-valve to realize the regulation of flow；The standby Traffic selector is can be stowed away Mode set, when system power failure, electronics and mechanical breakdown, the ejection of standby Traffic selector is retracted when that need not use.

13. electronic flow control system as claimed in claim 12, it is characterised in that receive the choosing of the second fluid flow Select including receiving selection of the second fluid relative to total flow ratio.

14. a kind of electronic flow control method, it is characterised in that including：

Receive the selection of direct flow control model and total flow control model alternative；

When have selected total flow control model, receiving and the flow that the total flow of first fluid and second fluid is controlled is selected Select；And

When have selected direct flow control model, receiving and the flow that the flow of the first fluid is controlled is selected；

Receive and the flow that the flow of the second fluid is controlled is selected；

According to the flow selection received, control signal is respectively transmitted to the first electronic flow control valve and the second electronic flow control Valve processed, to control the flow and the flow of second fluid of the first fluid flowed through respectively；

Standby Traffic selector is provided, for controlling needle-valve to realize the regulation of flow；The standby Traffic selector is with can quilt The mode packed up is set, when system power failure, electronics and mechanical breakdown, standby Traffic selector ejection, when that need not use Retract.

15. electronic flow control method as claimed in claim 14, it is characterised in that also including receiving nitrous oxide and One or more in air are elected to be the selection signal of the first fluid.

16. electronic flow control method as claimed in claim 14, it is characterised in that carried out to the flow of the second fluid The flow selection of control is the multiple quick key inputs included by graphic user interface.

17. electronic flow control method as claimed in claim 14, it is characterised in that included by graphic user interface Model selection interface receives the selection of direct flow control model and total flow control model alternative.

18. electronic flow control method as claimed in claim 14, it is characterised in that receive flow and be optionally comprised in containing number The graphic user interface of word key pad inputs numerical value corresponding with flow.

19. electronic flow control method as claimed in claim 14, it is characterised in that when have selected total flow control model When, controlling the flow selection of the second fluid flow includes ratio of the second fluid relative to total flow.