CN103809620A - Method and system for electronic flow control - Google Patents
Method and system for electronic flow control Download PDFInfo
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- CN103809620A CN103809620A CN201210452585.1A CN201210452585A CN103809620A CN 103809620 A CN103809620 A CN 103809620A CN 201210452585 A CN201210452585 A CN 201210452585A CN 103809620 A CN103809620 A CN 103809620A
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Abstract
Provided are a method and system for electronic flow control. According to the method and system for electronic flow control, two or more electronic flow selectors can be used to control flow of various fluids. In a total flow control mode, a first electronic flow selector can be used to select the total flow of the two or more fluids, a second electronic flow selector can be used to select flow of one fluid or the ratio of the flow of one fluid to the total flow of the two or more fluids. In a direct flow control mode, every electronic flow selector can be used to select the flow of a single fluid. One fluid can be oxygen, and other fluids and balance gas can be selected to be nitrous oxide or air through an electronic balance gas selector.
Description
Technical field
The application relates generally to the method and system of controlling fluid flow by electronic control mode.Especially, the application relates to and can realize electronic flow selector switch and the screen control device of selecting pattern control fluid flow in plurality of optional.
Summary of the invention
In the various application examples of modern times anesthesia transmission system, flow live gass such as oxygen, nitrous oxide, air can be controlled by electronics or mechanical system by operator.In various embodiments, one or more rotatable flow selector switchs such as knob may be set, to pass through the flow of electronics mode control gas in the time of power-up state.Alternatively or additionally, configurable screen display device is to allow the flow of one or more gases of user's Electronic Control.
Anesthesia transmission system also can comprise manual standby stream amount control device, for controlling the flow of one or more gases when the power-down state.In one embodiment, can select the air-flow coming that flows through from Electronic Control proportioning valve or machinery control needle-valve with the combination of T-valve and/or normally open valve and normally close valve.Valve module, flow selector switch and location detection system and possible distortion combination or mode thereof can be used for various flow control systems.
In various embodiments, when fluid flow control system is during in power-up state, T-valve or other switching valve systems can allow fluid to be only transferred to patient from Electronic Control electronics proportioning valve.When fluid flow control system is in the time that power-down state or user have selected manual control preferential voluntarily, T-valve allows fluid to be only transferred to patient from machinery control needle-valve.Alternatively, switching valve system can also be by the combination replacement T-valve of Chang Kai and normally close valve, or is used in conjunction with T-valve.In certain embodiments, switching valve system can be between fluid source and control valve for fluids.In further embodiments, switching valve system can be between control valve for fluids and fluid output terminal.
The configurable control valve for fluids such as Electronic Control proportioning valve is optionally to receive the fluid that comes from fluid source.Electronic flow selector switch can allow operator to select the flow of fluid by electronic control valve.From user's angle, the control handle function of electronic flow selector switch and mechanical needle-valve is approximate.For example, user can clockwise or be rotated counterclockwise knob to increase or to reduce the flow of particular fluid.The selection that rotary encoder can generate electronic flow selector switch is carried out electronic code and the selection of coding is sent to electronic controller.Electronic controller can be sent to electronic flow control valve by control signal, with the flow of the selection control fluid based on the generation of electronic flow selector switch.
Optionally, screen display device also can allow operator to select or regulate the flow of one or more fluids.For example, user can input the numerical value associated with total flow, fluid ratio number percent, particular fluid flow and/or with the associated numerical value of one or more fluids.Can carry out direct flow control mode by screen display device, in this pattern, user can provide the first input to input directly to adjust the flow of nitrous oxide or air with the flow and second of directly adjusting oxygen.Alternatively, also can carry out total flow control model by screen display device, in this pattern, the first input of selecting all gas (as balanced gas and the oxygen selected) total flow is provided, and the second input of selecting the oxygen concentration of mixing with selected balanced gas (air or nitrous oxide) is provided.
Selected value, applicable ratio and/or other settings can be presented with visualized graphs after system-computed/processing, for example, be expressed as the flowtube, flow bar (as, variable area flowmeter) of digitizing or mechanical system control.Digitizing show also can show with every single delivery flow rate of planting gas (as, liter/min) associated numerical value.In various embodiments, digitizing shows and can show the ratio of total flow, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and the similar information associated with flow with respect to optimal flux.
In certain embodiments, this system can be used two electronic flow selector switchs optionally to control the flow of oxygen and nitrous oxide or the flow of oxygen and air.This flow selector switch can be used in to direct flow control mode, in this pattern, use the first electronic flow selector switch directly to adjust the flow of oxygen, and use the second electronic flow selector switch directly to adjust the flow of nitrous oxide or air.The numeral associated with selected flow shows can show the ratio of selected flow, the total flow of every kind of gas, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and similar information with respect to optimal flux.
Flow selector switch also can operate under total flow control model, in this pattern, use the first electronic flow selector switch to adjust the total flow of the oxygen of selected balanced gas (air or nitrous oxide) and transmission, the concentration of the oxygen that use the second electronic flow selector switch control mixes with selected balanced gas (air or nitrous oxide).Under this pattern, the ratio of two kinds of gases can obtain and graph-based is flowtube/flow bar (as, variable area flowmeter) of numeral or mechanical system control by calculating.This digitizing show can show with every single delivery flow rate of planting gas (as, liter/min) associated numerical value.In various embodiments, digital demonstration can show the ratio of total flow, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and the similar information associated with flow with respect to optimal flux.
Electronic flow control valve can be electronics proportioning valve, and electronic flow selector switch can be knob, thereby user controls by the gas flow of this electronics proportioning valve to control electronics proportioning valve by manual rotation knob.Alternatively, electronic flow selector switch can comprise varied numeral and/or analogue selector with scrambler.For example, can use slide block to adjust between 0 flow point and 100% flow point.The signal that slip scrambler can produce slide block carries out electronic code, and corresponding output control signal control ratio valve.
In certain embodiments, can use the flow of every kind of available fluid of one or more independent electronic flow control valve control.For example, the flow of the controlled oxygen gas of the first electronic flow control valve.The second electronic flow control valve can be controlled the flow of nitrous oxide.The 3rd electronic flow control valve can be controlled the flow of air.Quadrielectron flowrate control valve can be controlled the flow of the 4th kind of gas.
Similarly, the flow of every kind of electronic flow control valve of available independent electronic flow selector switch control.Alternatively, optionally distribute two or more electronic flow control valves of one or more electronic flow selector switch control.For example, system can comprise three electronic flow control valves, and one for oxygen, and one for air, and another is for nitrous oxide.This system can be used only two electronic flow selector switchs, optionally uses one of them to control the flow of air or the flow of nitrous oxide, and distributes another to control the flow of oxygen.Fixable distribution or optionally distribute the flow of any one or more available fluid of electronic flow selector switch control.
Except electronic control valve, the flow of every kind of available fluid of configurable one or more mechanical flowrate control valve control.For example, can use independent needle-valve machinery to control the flow of every kind of available fluid.Such as the manual flow selector switch of knob or slide block, can be operated with the flow through flow of fluid of each needle-valve of machinery adjustment by user.In certain embodiments, when system is during in power-up state, can stop using and/or pack up manual flow selector switch and adjust by its fluid flow to prevent user, avoid interference normal flow control operation.
At power-up state, can be by adjusting one or more electronic flow selector switchs to control by the flow of one or more fluids of one or more electronic flow control valves.At power-up state, can stop using or close stand-by machine flowrate control valve, mix with other fluids to stop fluid to pass through this operation valve for subsequent use.In addition,, at power-up state, can stop using or pack up the manual flow selector switch associated with stand-by machine flowrate control valve and now can pass through manual flow selector switch adjust flux to prevent that user from takeing for.
At power-down state, or while having selected manual control preferential, the electronic flow control valve and/or stop by its transmitting fluid or fluid-mixing of can stopping using.Can activate and/or eject manual flow selector switch to allow operator directly to control the flow of one or more fluids by stand-by machine flowrate control valve.
In certain embodiments, in the time stopping using manual flow selector switch, such as resetting once power up or system, the flow of each stand-by machine flowrate control valve can reset to ground state/original state/default conditions, in the time that system enters power-down state again, gas is by automatically according to the traffic transport of described original state.
In one embodiment, electronic flow control valve can comprise Electronic Control stepper motor and mechanical flowrate control valve, thereby controls mechanical flowrate control valve and adjust the flow of fluid by controlling motor.The mechanical flowrate control valve here can share or set up with mechanical flowrate control valve for subsequent use.The various examples that provide in embodiments of the present invention, fluid is mainly described to gas, includes but not limited to oxygen, nitrous oxide and/or air.But the invention thought that entirety discloses according to the present invention, it will be understood by those skilled in the art that described embodiment or its simple deformation are applicable to various gas and liquid.
Accompanying drawing explanation
Figure 1 shows that the Anesthesia machine of one embodiment of the present invention, it has configured three manual flow selector switchs, each oxygen, nitrous oxide and air controlled respectively.
Figure 2 shows that the Anesthesia machine of another embodiment of the present invention, it configures two electronic flow selector switchs, optionally controls each gas in three kinds of gases; And three alternative stand-by machine flow controllers that eject or retract, for controlling each gas of three kinds of gases.
Figure 3 shows that a kind of schematic diagram of anaesthetizing transmission system of the present invention, it has configured electronic-controlled installation and the manual overvide for subsequent use of controlling oxygen, nitrous oxide and air mass flow.
Figure 4 shows that a kind of partial enlarged drawing of anaesthetizing transmission system control panel, it comprises two electronic flow selector switchs, optionally for directly control oxygen and nitrous oxide or oxygen and air with direct flow control mode.
Figure 5 shows that a kind of partial enlarged drawing of Anesthesia machine control panel, comprise two electronic flow selector switchs, it is the configurable ratio that mixes total flow for controlling oxygen with respect to oxygen and nitrous oxide or air optionally.
Figure 6 shows that a kind of panoramic view of Anesthesia machine control panel, comprise that double mode electronic flow selector switch and manual flow control for subsequent use are for the independent flow of controlling three kinds of gases.
Fig. 7 A is depicted as a kind of screen display device of Anesthesia machine, for allowing user to select the relative discharge of oxygen and balanced gas (air or nitrous oxide) in total flow control model.
Fig. 7 B is depicted as another view of a kind of screen display device of Anesthesia machine, for select the relative discharge of oxygen and balanced gas in total flow control model, and comprise the drop-down menu for selecting balanced gas, in figure, shown the situation that recalls drop-down menu.
Fig. 7 C is depicted as a kind of screen display device of Anesthesia machine, and for select the relative discharge of oxygen and nitrous oxide in total flow control model, now selected balanced gas is nitrous oxide.
Fig. 7 D is depicted as a kind of screen display device of Anesthesia machine, and for select the relative discharge of oxygen and air in total flow control model, now selected balanced gas is air.
Fig. 8 A is depicted as a kind of screen display device of Anesthesia machine, for select the relative discharge of oxygen and air at direct flow control mode.
Fig. 8 B is depicted as a kind of screen display device of Anesthesia machine, for select the relative discharge of oxygen and nitrous oxide at direct flow control mode.
Fig. 9 A is depicted as a kind of panoramic view of Anesthesia machine screen display device, for select the relative discharge of oxygen and balanced gas in total flow control model.
Fig. 9 B illustrates the panoramic view of Anesthesia machine screen display device, for select the relative discharge of oxygen and balanced gas at direct flow control mode.
Embodiment
Electronic flow control valve, such as Electronic Control proportioning valve, can be used for optionally allowing the fluid that comes from fluid source pass through.Electronic flow selector switch can allow operator to select the flow of first fluid by electronic control valve.From user with or user experience angle, electronic flow selector switch is with to control the control handle of mechanical needle-valve approximate in mode of operation and function.For example, user can clockwise or be rotated counterclockwise knob to increase or to reduce the flow of particular fluid.The selection signal that electronic flow selector switch can be generated such as the rotary encoder of system configuration carries out electronic code and the signal of coding is sent to electronic controller, electronic controller can be sent to electronic flow control valve by control signal, with the flow of the selection control fluid based on the generation of electronic flow selector switch.And under mechanical control method, user is also that rotation knob increases or reduce fluid flow, difference is that user's operation direct control unit tool needle-valve now reaches the object of flow regulation.But the experience that the difference of this inside does not affect user while operating, therefore Anesthesia machine of the present invention can obtain the various advantages that use electronic flow control valve, can retain again mechanical flow adjustment operation mode, make the user who has been accustomed to for a long time mechanical operation experience more excellent simultaneously.
One or more electronic flow selector switchs optionally can be allocated in and control two or more electronic flow control valves.For example, system can comprise three electronic flow control valves, and one for oxygen, and one for air, and another is for nitrous oxide.This system can only be used two electronic flow selector switchs, and one of them is optionally for controlling the flow of air or the flow of nitrous oxide, and another divides the flow that is used in control oxygen.Fixable distribution or optionally distribute the flow of any one or more available fluid of electronic flow selector switch control.
In certain embodiments, system can be used two electronic flow selector switchs optionally to control the flow of oxygen and nitrous oxide or oxygen and air.Can adopt direct flow control mode use traffic selector switch, in this pattern, use the first electronic flow selector switch directly to adjust the flow of oxygen, and use the second electronic flow selector switch directly to adjust the flow of nitrous oxide or air.The numeric display unit associated with selected flow can show the ratio of selected flow, the total flow of every kind of gas, two kinds of gases, with respect to the total flow of optimal flux and/or other numerical value, chart, figure, number percent and with the associated similar information of flow.
Flow selector switch can additionally, optionally or alternatively be used in total flow control model, in this pattern, use the first electronic flow selector switch to adjust the total flow of the oxygen of selected balanced gas (air or nitrous oxide) and conveying, and the oxygen concentration that uses the second electronic flow selector switch control to mix with selected balanced gas (air or nitrous oxide).The ratio (oxygen and balanced gas) of two kinds of gases can by calculating obtain and with patterned way be expressed as numeral or mechanical system control flowtube (as, be similar to the electronical display of variable area flowmeter).This numeral show can show with every single release flow of planting gas (as, liter/min) associated numerical value.In various embodiments, digital demonstration can show the ratio of total flow, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and the similar information associated with flow with respect to optimal flux.
Additionally or alternatively, screen display device can allow user in direct flow control mode or in total flow control model, select the flow of one or more gases.Screen display device can comprise shortcut for selecting the common flow of specific gas, for inputting the keypad, digital knob, digital slider, upper and lower arrow of the numerical value associated with one or more gas and/or other can device for selection controlling for the numeral of selecting flow.The electronic selection of making by screen display device (such as touch-screen) can be sent to electronic controller.Electronic controller can be sent to electronic flow control valve by control signal, controls the flow of one or more fluids with the selection based on making by screen display device.
According to various embodiment, in direct flow control mode, user can directly input numerical value to select the flow of balanced gas (air or nitrous oxide), and is inputted numerical value and selected the flow of oxygen by screen display device.Numeric display unit (can be simultaneously screen display device) can show the ratio of selection flow, the total flow of every kind of gas, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and similar information with respect to optimal flux.
In total flow control model, user can input numerical value to select the total flow of selected balanced gas (air or nitrous oxide) and transmission oxygen, and input numerical value is selected the oxygen concentration of mixing with balanced gas (air or nitrous oxide).In various embodiments, user can select total flow control model or direct flow control mode.Screen display device can be provided by the input providing by touch, voice, mouse, keypad, joystick and/or other periphery input equipments.
Although the electronic flow control of gas can be of value to anesthesia transmission, anesthesia transmission system also may have the demand of enabling manual control for subsequent use.For example, between anesthesia transmission period, anaesthetize transmission system and lose electric power supply, now will use stand-by machine control as continued supply gas.In certain embodiments, the electronic controller such as the adjustment knob of matching coding device use, can be convenient to, between anesthesia transmission period, the flow of one or more gases is carried out to electronics adjustment.Can in power fail or power-off event, enable and separate the flow selector switch for subsequent use (as knob) arranging with it.In these embodiments, operator need to operate knob for subsequent use, and machine is switched to manual mode from electronic pattern, and can before manual mode, manual knob be set to suitable state being switched to.
During particularly perform the operation at medical procedure, first aid etc. concerned the treatment program of patients ' lives, the power down during anesthesia of patient be easily make us feeling flurried, have destructive.And for operator (doctor), see two covers control the knob of same serial gas can make us feeling inconvenience and/or disturb the judgement.In the application's various embodiment, flow selector switch such as rotation knob can carry out at fluid flow control system electronic operation during in power-up state, and when fluid flow control system is during in power-up state, standby stream selector switch is deactivated or stashes.Because electronic selector is in function to manually, flow selector switch is similar, so can reduce the fascination bringing thus.At power-down state, or operator is while operating back-up system, and flow selector switch for subsequent use can be ejected or activate.
The quantity of switching valve system, mechanically operated valve, electronic operation valve, controller, scrambler, flow selector switch and/or other parts described herein can be corresponding with the kind number of controllable gas (or liquid) respectively.In various anesthesia transmission systems, oxygen, nitrous oxide and/or air are can be independently of one another controlled and/or ratio is controlled.The mixed gas of one or more gases can together use with anesthesia evaporator, mixes rear supply patient with the anesthetic gases of anesthesia evaporator evaporation.
In one embodiment, the bootable gas of switching valve system (or liquid) flows from source of the gas to the mechanical flowrate control valve such as machinery control needle-valve, or such as the electronic flow control valve of electronics proportioning valve, this will depend on whether anesthesia transmission system powers on or whether back-up system starts.
According to various embodiment, switching valve system can comprise Chang Kai and normally close valve, and it is for optionally preventing gas flow mechanically actuated needle-valve or electronic operation proportioning valve, or flows out from mechanically actuated needle-valve/electronic operation proportioning valve.This switching valve system can be used various valves and/or control system to realize, such as T-valve.
In certain embodiments, can use needle-valve as mechanical flowrate control valve, and same needle-valve can be used as electronic flow control valve in conjunction with electronics stepper motor.In various embodiments, flow selector switch can be various knobs, button, revolving actuator, slide block and/or other simulations and/or digital selection equipment.
In various embodiments, controller or control system can be passed through the combination realization of hardware, firmware and/or software.For example, controller can be field programmable gate array (FPGA).In certain embodiments, can distinguish setting or separate with other electronic units of gas Flowrate Control System for the electronic controller that transmits a control signal to electronic flow control valve, these electronic units comprise the electronic unit that microprocessor is associated with demonstration, touch-screen, data storage, data connection etc. with other.The reliability of electronic flow control device can be by electronic flow control device is separated and improved from other electronic modules of anesthesia transmission equipment, or realize rather than software realizes improving reliability by hardware.
Although the various examples in the application and embodiment are described as an example of gas Flowrate Control System example, described a lot of embodiment also can be directly or correct and be used in the fluid of any type, comprises various gas and liquid.For the gas of anesthesiaing system, such as oxygen, nitrous oxide and air, be also the concrete example while being gas Flowrate Control System as description flow control system.
Embodiments of the invention can be implemented by common universal architecture, such as multi-purpose computer, computer programming tools and techniques, digital storage media and communication network.Computing equipment and other electronic controllers can comprise various forms of processors, such as microprocessor, microcontroller, logical circuit and/or similar parts.Processor can also be dedicated treatment facility, for example special IC (ASIC), programmable logic array (PAL), programmable logic array (PLA), programmable logic device (PLD), FPGA or other customizable and/or programmable devices.Computing equipment also can comprise computer readable storage devices, for example nonvolatile memory, static RAM (SRAM), dynamic ram, ROM, CD-ROM, video disc, tape, magnetic, optics, flash memory or other machines readable storage medium storing program for executing.Useful hardware, software, firmware or their combination realize the described various technical schemes of embodiment.
For ease of to detailed understanding of the present invention, carry out the various embodiment of DETAILED DESCRIPTION The present application below in conjunction with Figure of description.For the purpose of simple, element similar in different embodiments represents with similar label.But, it will be understood by those skilled in the art that feature described in various embodiments, structure, step etc. can replace with other feasible features, structure, step; Feature in an embodiment, structure, step etc. can with other embodiment in feature, structure, step etc. combine or intersect and replace and obtain distortion embodiment.Thicken in the text for fear of main intention of the present invention, omitted the specific descriptions of known features, the method etc. of this area related to the present invention.
So, below the detailed description of the application's system and method embodiment do not limit the application's the protection domain as shown in claim, and be only the representative of possible embodiment.In addition, the step of method does not need by certain specific order or carries out successively, and these steps are also not limited to only carry out once.
Fig. 1 has shown the Anesthesia machine 100 (anesthesia delivery machine) of three manual flow selector switchs 150 of a kind of configuration (manual flow selectors), and wherein each selector switch 150 is for controlling the flow of oxygen, nitrous oxide and air.This Anesthesia machine 100 can comprise other optional components of respiratory system 110 (breathingsystem), anesthesia evaporator 130 (anesthetic gas vaporizers) and/or anesthesia respiratory system.Such as, this Anesthesia machine 100 also can comprise trolley 140 (cart) and/or wheel 145 (wheels) so that carrying, mobile Anesthesia machine.Electronic display unit 120 (electronicdisplay) can provide the information about flow and/or anesthesia transmitting procedure to operator.In addition, electronic display unit 120 can assemble touch-screen to allow operator to input the operation associated with displaying contents and selection by indicator screen.Here the manual flow selector switch 150 of saying also can be described as electronic flow selector switch, be coordinate rotary encoder etc. realize electronic flow control for the manually operated parts of user, user is by the operation to selector switch 150, realize and regulate similar operating experience to mechanical flow, but the needle-valve that user's operation can't direct control unit tool formula carrys out adjust flux, but the elements such as the rotary encoder that internal system coordinates with selector switch 150 are converted into proportioning valve that electronic signal controls electronic type again to realize flow regulation by user's input.
In various embodiments, user for example can clockwise or be rotated counterclockwise manual flow selector switch 150 (for example, rotatable knob), to reduce or to increase the flow of particular fluid (, oxygen, nitrous oxide, air).In various embodiments, manually the quantity of flow selector switch 150 can be corresponding to the kind number of the fluid that will control.So, can the kind number based on controlled gas (or other fluids) use the manual flow selector switch of any number.
The Anesthesia machine 200 of another kind of embodiment shown in Fig. 2 has configured two electronic flow selector switchs 250 (electronic flow selectors), can be used for optionally controlling each of oxygen, nitrous oxide, three kinds of gases of air.This Anesthesia machine 200 also comprises three manual flow selector switchs 260 for subsequent use (backup manual flow selectors), for controlling each of three kinds of gases.This Anesthesia machine 200 can comprise other optional components of respiratory system 210, anesthesia evaporator 230 and/or anesthesia transmission system.Such as, this Anesthesia machine 200 can comprise that trolley 240 and/or wheel 245 are to be easy to movement.Electronic display unit 220 can provide the information about flow and/or anesthesia transmitting procedure to operator.In addition, electronic display unit 220 can comprise touch display screen.Here 260 of said manual flow selector switchs are mechanical, and selector switch 260 is to match with the mechanical type needle-valve of internal system, can directly control needle-valve to realize the adjusting of flow by the operation of selector switch 260.
When Anesthesia machine 200 is during in electronic pattern, three manual flow selector switchs 260 for subsequent use can keep stopping using or be retracted into the state of internal system.For example, when Anesthesia machine 200 enters manual mode (, because power down enters manual mode or user selects to enter manual mode voluntarily automatically), three manual flow selector switchs 260 for subsequent use can ejection, releases or are enabled.Accordingly, various internals, switch, normally open valve, normally close valve, T-valve and/or other assemblies can be that manual mode or electronic pattern coordinate the gas flow regulating in Anesthesia machine 200 based on current Anesthesia machine as previously mentioned.
In electronic pattern, manual flow selector switch 260 for subsequent use can be packed up, be locked, be disconnected and/or be unavailable.Packing up here can refer to selector switch 260 is designed to the structure that can eject/retract, be hidden in internal system in the time not needing to use.Now, can be controlled by electronic flow selector switch 250 flow of two or more gases.This anesthesia transmission system can enter manual mode because power down, electronics and mechanical fault and/or user select manual mode to produce response.
Figure 3 shows that a kind of anesthesia transmission system (anesthesia delivery system) 300, this anesthesia transmission system 300 has configured electronic flow control valve 311,312 and 313 (electronic flowcontrol valves) and stand-by machine flowrate control valve 301,302 and 303 (backup mechanicalflow control valves), for controlling the flow of oxygen 321 (oxygen), nitrous oxide 322 (nitrousoxide) and air 323 (air).In the time that the power supply obtaining by AC power 360 (AC supply) and/or battery 361 (batteries) is available, this anesthesia transmission system is selected to control each road gas flow by the electronic flow control valve 301,302 and 303 of one or more electronic flow selector switch control.Power supply input can be optionally by power panel 379 (power board) and/or mainboard 375 (motherboard) changes or inversion (be provided with on power panel, mainboard and change required electronic component, module).Gas flow template 350 can comprise various monitoring and/or Control Component, for the gas flow in electronic monitoring, adjusting and/or control anesthesia transmission system.
In various embodiments, anesthesia transmission system can comprise various assemblies and/or be interfaced to various assemblies by gas flow template 350.For example, gas flow template 350 can comprise or be connected to various field programmable gate arrays (FPGA), central processing unit (CPU), microprocessor, logical circuit, driving circuit, digital to analog converter, analog to digital converter, driving circuit, motor driver, power switch, input equipment, optical sensor, visual pilot lamp, display device, solenoid, stepper motor, touch pad and/or peripheral component.In addition, gas flow template 350 can comprise or be connected to various motor position switches, LED, needle valve switch, source of the gas and/or other selection input medias.Operator can come to carry out alternately with Anesthesia machine by the operation input that is provided for controlling one or more gas flows.For instance, the operation that operator can control flow by the input of electronic flow selector switch.Electronic flow selector switch can comprise mechanical rotatable knob and rotary encoder.
Similarly, operator can provide input by touch panel display device or with showing associated periphery input equipment.Screen control device and/or electronic flow selector switch can allow operator in described total flow control model or directly select the flow of one or more gases in flow control mode.
When anesthesia transmission system is in power-up state, user can use this system under electronic pattern, maybe can select manual mode.When anesthesia transmission system is in power-down state, this anesthesia transmission system can be used under manual mode.In electronic pattern, 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 non-return valve 330 (check valves) and flow sensor.In manual mode, three kinds of gas oxygen 321, nitrous oxide 322 and air 323 can flow through stand-by machine flowrate control valve 301,302 and 303, oxygen ratio controller 325 and/or counterbalance valve 327 (backpressure va1ve).
User can select to be supplied to patient's oxygen and the flow of air gas mixture (air is as balanced gas).User also can select the flow (now nitrous oxide is as balanced gas) that replaces air to be supplied to patient's nitrous oxide.In certain embodiments, air and nitrous oxide can be simultaneously as balanced gas.Under manual mode, select no matter what user does, the amount of oxygen that meets safety requirements can guarantee to be automatically supplied to patient by oxygen ratio controller (ORC) 325.Under electronic pattern, can guarantee by control circuit the security of operation.
In various embodiments, user can be started in total flow, increase gas and observe the impact of every kind of gas for total flow simultaneously gradually by zero flow, thereby finally reaches the target rate of oxygen 321, nitrous oxide 322 and air 323.In other variant embodiment, user start to adjust three road gases from the oxygen 321 of " ground state " flow of system default each reach the flow of wanting, obtain the target rate of oxygen 321, nitrous oxide 322 and air 323 with this.Oxygen ratio controller 325 can guarantee safe clinically oxygen and the ratio of nitrous oxide.Non-return valve 330 can prevent by the caused each road gas backstreaming of potential high pressure following current.
In any flow control mode, after non-return valve 330, the air-flow of three kinds of gases can merge that become can be by the single air-flow of total flow instrumentation amount, and the total flow meter 337 of flowing through (total flow meter).Anesthesia evaporator 340 (anesthetic gas vaporizer) can be vaporized into gas by liquid anesthetic.Can use T-valve 335 (three-way selector valve) to select to adopt air flow path corresponding to pattern to be communicated with total flow meter 337 with current system, for example, guide air flow stream mistake one of from stand-by machine flowrate control valve 301,302,303 and 311,312,313 liang of groups of electronic flow control valve.Optionally, the replaceable one-tenth of T-valve is one or more often opens and/or the combination of normally close valve.Other forms of switching valve system can be used for substituting T-valve 335 and/or Chang Kai and/or normally close valve.
Under electronic pattern, the flow control selector switch associated with stand-by machine flowrate control valve 301,302 and 303 can be deactivated or be retracted into internal system.According to system whether power down or user whether selected corresponding operating, system automatically or enter manual mode according to instruction, now the flow control selector switch associated with needle-valve 301,302 and 303 can be activated, ejection, release etc. and available.Some elements that are listed in the anesthesia transmission system 300 of element declaratives 390 do not describe in detail in instructions.In addition, various assembly, testing apparatus, watch-dog and/or the opertaing devices that can be used for anaesthetizing transmission system, gas delivery system, liquid transfer system and/or other related systems, can add as required, supplement and/or replace shown in intrasystem assembly.
Fig. 4 is the partial enlarged drawing of a kind of Anesthesia machine control panel 400 (control panel), comprise two electronic flow selector switchs 415 and 417 (electronic flow selectors), optionally configurable for direct flow control mode (direct flow control mode) directly to control oxygen and nitrous oxide or oxygen and air.As shown in the figure, selector switch 470 for selecting to control the flow of oxygen and which kind of balanced gas, for example, is the flow of selecting to control oxygen and nitrous oxide, or selects to control the flow of oxygen and air.Mode tag 480 shows the flow control mode that current system uses, and shows that present mode is direct flow control mode in Fig. 4.As shown in the figure, this Anesthesia machine can comprise panel 430 (panel) showing the various remote measurement/detection data associated with patient, with the associated information of gas flow and/or discharge associated information with one or more anesthetic.Various available inputs 440 (inputs, or option/label/button) can change displaying contents or the form of panel 430, and/or control the work of Anesthesia machine.In certain embodiments, panel 430 can provide screen control device to select the flow of gas for operator, for example, comprise touch-screen display.
In the first bit selecting, selector switch 470 (selection toggle) can allow operator to pass through electronic flow selector switch 415 and 417 (or by the touch display unit in panel 430) separately to control the flow of oxygen and nitrous oxide.In the second bit selecting, selector switch 470 can allow operator to pass through flow selector switch separately 415 and 417 to control the flow of oxygen and air.According to selector switch 470, by user-selected fixed position, various traffic monitoring equipment and ratio measure equipment 420 (ratio measuring devices) can show the flow of one or more gases and/or combination of gases.In various embodiments, can also there are the auxiliary input and output 450 (auxiliary inputs andoutputs) of controlling oxygen and/or another kind of gas.
Although illustrated embodiment has been shown two electronic flow selector switchs 415 and 417, can use the arbitrary number flow selector switch associated with gas.For example, configurable flow control system makes it have 1,2,3, electronics and the manual flow control for subsequent use of 4...... or N kind gas or liquid.In certain embodiments, configurable more than one flow selector switch (as, knob, toggle switch, dial (of a telephone), slide block, switch) control the flow of same gas.Can select to be selected the arbitrary number of knob control and the gas of combination by flow control by more selector switch 470 and/or similar multiselect position selector switch.Flow selector switch can comprise and/or use any analog or digital selection mechanism for selecting flow, comprises the knob shown in figure.
For every kind of controlled air, can for example, show numerical value 460 and 475 (numeric values) and associated diagrammatic representation 420 (graphicalrepresentations) by direct flow (liter/min) or the mode of number percent flow.Alternatively, numerical value 460 with 475 and/or diagrammatic representation 420 can show the ratio of selected flow, the total flow of every kind of gas, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and the similar information associated with flow with respect to optimal flux.In embodiment shown in the figure, show that nitrous oxide accounts for 1/4th (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.
Figure 5 shows that the partial enlarged drawing of a kind of Anesthesia machine control panel 500 (control panel), it comprises two electronic flow selector switchs 515 and 517 (electronic flow selectors), optionally configurable for total flow control model (total flow control mode) directly to control the total flow of oxygen and nitrous oxide and total flow and the oxygen concentration of oxygen concentration or oxygen and air.As shown, Anesthesia machine can comprise panel 530 (panel) showing the various remote measurement/detection data associated with patient, with the associated information of gas flow and/or discharge associated information with one or more anesthetic.Panel 530 also can provide screen display device or the menu button of touch-control, for allowing living of user's additivity to replace the function that realizes electronic flow selector switch 515 and 517 and control gas flows of property.Can also change the demonstration of panel 530 and/or control Anesthesia machine by other inputs 540 (inputs).
In the first bit selecting, selector switch 570 (selection toggle) can allow operator to pass through each electronic flow selector switch 515 and 517 to control the flow of oxygen and nitrous oxide, shows that now it is nitrous oxide that user selects the balanced gas of controlling.In the second bit selecting, selector switch 570 can allow operator to pass through the flow of each flow selector switch 515 and 517 control oxygen and air.The position clicking according to selector switch 570, various traffic monitoring equipment and ratio measure equipment 520 (ratio measuring devices) can show the flow of one or more gases and/or combination of gases.In various embodiments, can there are the auxiliary input and output 550 (auxiliary inputs and outputs) of oxygen and/or another kind of gas.
Although illustrated embodiment is shown two electronic flow selector switchs 515 and 517, system can be used any several target flow selector switch and the corresponding gas of controlling any number.For example, configurable flow control system is to allow electronics and the manual control for subsequent use of use 1,2,3,4... or N kind gas or liquid.In certain embodiments, a configurable more than flow selector switch (for example knob, toggle switch, dial (of a telephone), slide block, switch) is to control the flow of same gas.Can be with more multi selector switch 570 and/or multiselect position selector switch are controlled the number of being selected the gas of knob control by the corresponding flow control of any number.Flow selector switch can comprise and/or use any analog or digital selection mechanism for selecting flow, comprises the knob shown in figure.
In figure, mode tag 580 display systems are in total flow control model, and user can adjust with the first electronic flow selector switch 515 total flow of gas.In other words can adjust with the first electronic flow selector switch 515, the total flow of oxygen and selected balanced gas (air and nitrous oxide).Can control the oxygen concentration of mixing with selected balanced gas (air or nitrous oxide) with the second electronic flow selector switch 517, specifically nitrous oxide or air depend on by selector switch 570 to select which kind of balanced gas.The selection operation of exporting by selector switch can be encoded and is sent to electronic controller by rotary encoder.Oxygen and balanced gas ratio and the flow needing can be calculated by electronic controller.Electronic controller can be controlled according to the electronic flow control valve of selection signal controlling such as electronics proportioning valve after coding the flow of each gas subsequently.
In illustrated embodiment, show that selector switch 570 selects the situation of nitrous oxide as balanced gas.The first electronic flow selector switch 515 is chosen as 10.0 by total flow (L/min, liter/min).The total flow showing can be not only not show numerical value containing unit, by liter/min, kg/min and/or other volume or weight units measure with the ratio of time.Can use the second electronic flow selector switch 517 to select oxygen to account for the number percent (being depicted as 60%) of total gas couette, i.e. oxygen concentration.
Figure 6 shows that the panoramic view of a kind of Anesthesia machine control panel 600 (control panel), comprising can be at the electronic flow selector switch of double mode lower operation 615 and 617 (dual mode electronic flowselectors) and for the independent stand-by machine volume control device 681,682 (backup mechanical flow controls) of controlling three kinds of gas flows.When anesthesia transmission system is operated in Electronic Control pattern, can use two electronic flow control selector switchs 615 and 617 under institute's lectotype, to control oxygen and nitrous oxide or oxygen and air.
In addition,, in Electronic Control pattern, the screen operator display device that is positioned at panel 630 (panel) can be used for allowing user to select the flow of oxygen and nitrous oxide or air.Electronic display unit 630 also can show the information associated with flow, anesthetic and/or patient's remote measurement/Monitoring Data of one or more gases.System can comprise various touch input devices 640 (touch inputs).Auxiliary control panel 650 (auxiliary control panel) can allow one or more gases to be fed to utility appliance.
Can select direct flow control mode or total flow control model by mode selector.At direct flow control mode, can use the first electronic flow selector switch directly to adjust balanced gas, comprise the flow of nitrous oxide or air.Can use the second electronic flow selector switch directly to adjust the flow of oxygen.The numeric display unit 630 associated with selected flow can show the ratio of flow, the total flow of every kind of gas, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and similar information with respect to optimal flux.This numeric display unit 630 also can allow that the flow associated with every kind of gas, total flow, gas flow ratio etc. are carried out to numeral and select, for example, directly input certain by screen shortcut menu and want the parameter reaching.
Similarly system can be used in total flow control model.In total flow control model, can use the first electronic flow selector switch to adjust the total flow of gas, comprise the flow of selected balanced gas (air or nitrous oxide) and oxygen.The oxygen concentration that can use the second electronic flow selector switch control to mix with selected balanced gas (air or nitrous oxide).This selection can be encoded and is sent to electronic controller by one or more rotary encoders.The flow that can calculate gas ratio and need by electronic controller.Then electronic controller can control according to the selection signal after coding the flow of each gas by the electronic flow control valve such as electronics proportioning valve.
Numerical value and associated diagrammatic representation can be shown as direct flow (as, liter/min) or the number percent flow of every kind of controlled air.Alternatively, numerical value and/or diagrammatic representation can show the ratio of selected flow, the total flow of every kind of gas, two kinds of gases, total flow and/or other numerical value, chart, figure, number percent and similar information with respect to optimal flux.Screen operator device in display device 630 can allow user to carry out numerical value to flow and/or other are digital control, and details are as follows.
When anesthesia transmission system is in the time that power-down state and/or user select operate in manual mode voluntarily, this anesthesia transmission system can enter manual mode.In manual mode, the flow of one or more gases and/or narcotic transmission quantity can be controlled by manual panel 655 (manual panel).Electronic display unit 630, touch input device 640, electronic flow control selector switch 615 and 617 and other electronic packages are all unavailable at power-down mode, when in the artificial manual mode of selecting of power-up state they one or more unavailable and/or invalid.
Manually panel 655 can comprise summation flowmeter indicator 690 (total flow rate indicator), manual mode selector switch 685 (manual mode selector) (as, spring-loaded plunger) and one or more manual operation flow control selector switch 681,682,683 (manually operated flow controlselectors).According to various embodiment, manual operation flow control selector switch can be used for controlling every kind of available gas or every kind of crucial gas.In various embodiments, in the time anaesthetizing transmission system in electronic pattern, manual operation flow control selector switch 681,682 and 683 can be disabled, stop using, locks and/or can not operate.At manual mode, manual operation flow control selector switch 681,682 and 683 can be activated, ejection, release and/or can operate.
Fig. 7 A is depicted as a kind of local screen's display interface 700 (on-screen display) of Anesthesia machine, its be configured for allow user by shortcut menu under total flow control model, when mode tag 715 is shown as total flow control model (total flow control mode), select the relative discharge of oxygen (oxygen) and balanced gas (balance gas) (air or nitrous oxide).Oxygen is commonly referred to as live gas with mixing of balanced gas, arranging in present embodiment allows user directly by the shortcut menu of screen display, fresh gas flow to be set, and concrete can comprise the flow of oxygen or balanced gas, concentration of oxygen etc. by setting option.As shown in the figure, this screen display interface 700 can comprise various icons, panel, button, button handsetting, input field and/or other inputs and demonstration.In an illustrated embodiment, screen display interface 700 can be graphic user interface, and it is configured for by one or more hardware adaptor and/or by touch screen interface and carries out alternately.Screen display interface 700 can the instruction based on executive system processor show various information on electronic display unit.This instruction can be stored in various non-volatile medias.
Configurable screen display interface 700 is to allow operator to control the flow of one or more fluids.User can select direct flow control mode or total flow control model by mode tag 715.Fig. 7 A-7D is shown as total flow control model at mode tag 715 places, and Fig. 8 A-8B is shown as direct flow control mode at mode tag 815 places.
As shown in Figure 7 A, in mode tag 715 display systems, during in total flow control model, user can select at flow label 730 places the total flow of live gass.The flow number of wanting the input field input of (can recall by clicking flow label 730) on-screen keyboard 750 (keypad), or increase or reduce the total flow of mixed gas (live gas) by upper and lower arrow 760.Also can carry out the selection of oxygen concentration/flow at concentration label 740 places.According to various embodiments, the expression mode of flow label 730 can be the numerical value of total flow, and the expression mode of concentration label 740 can be ratio or the number percent that oxygen accounts for total flow.Additionally or alternatively, can provide the numerical value corresponding to oxygen flow simultaneously.Oxygen flow numerical value under total flow control model is that system calculates according to total flow control signal and the oxygen concentration control signal of user's input.In various embodiments, shortcut panel 720 can comprise several shortcuts 721,722,723 and 724 (quickkeys).Each shortcut 721,722,723 and 724 can allow user to select fast the concrete flow of oxygen as shown in the figure.The quick selection that these shortcuts are corresponding can be some the most frequently used flow set of user.In alternate embodiment, also configurable one or more shortcut is to allow the selection of total flow.
Fig. 7 B is depicted as a kind of screen display interface 700, has been to occur three sub-options of balanced gas with interface difference shown in Fig. 7 A.Mode tag 715 place's display systems are in total flow control model, user can select by interface 700 relative discharge of oxygen 740 and balanced gas 730, and balanced gas Selection Floater 710 comprises the drop-down menu (drop down menu) that contains the sub-option of concrete balanced gas.As shown in the figure, the balanced gas in various embodiment can be air or nitrous oxide.The balanced gas of selecting by the drop-down menu of balanced gas Selection Floater 710, the total flow that shows/arrange by total flow label 730, oxygen concentration/the flow that is shown/arranged by oxygen concentration label 740, its concrete operation can and/or be inputted by diversified other external input equipments by touch interface, mouse, joystick, phonetic entry, gesture.
As shown in another embodiment, if user is increased to 60% and maintain total flow 5.0 liter/min by the ratio of oxygen from 50% at oxygen concentration label 740 places, system is increased to 3.0 liters/min and the flow of nitrous oxide is reduced to 2.0 liters/min through calculating by the flow of controlling oxygen.Therefore, can find out, in total flow pattern, change associated single input with oxygen flow and can cause that system calculates needing flow and communicating by letter to reach with suitable electronic flow control valve flow and the gas ratio wanted of two or more gases automatically.
In screen display interface shown in Fig. 7 D 700 and two figure above, content is similar, and the key distinction is that it selects air (Air) as balanced gas at balanced gas Selection Floater 710 places.Information at input field 703 places is blank, and total flow label 730 shows is arranged to 6.0 liters/min by total flow.At oxygen concentration label 740 places, oxygen ratio/concentration is arranged to 25%.Therefore, in system, related elements can transmit a signal to each corresponding electronic flow control valve oxygen flow is reduced to 1.5 liters/min according to this setting, the flow of nitrous oxide is reduced to 0.0 liter/min, and the flow of air is increased to 4.5 liters/min.
User can control by screen display interface 800 flow of one or more fluids, such as air, oxygen, the nitrous oxide of gaseous state.User can select at mode tag 815 places direct flow control mode or total flow control model.Fig. 8 A-8B is depicted as the screen display interface 800 in direct flow control mode.According to various embodiment, user can be switched before use or in using between total flow control model and direct flow control mode.In certain embodiments, can select flow control mode with model selection interface.This model selection interface can be realized in every way, comprises screen, dialog popup, icon, button, pull-down menu, radio button and/or the similar fashion of separation.
As shown in Figure 8 A, in direct flow control mode, user can select respectively at label 830 and 840 places the flow of every kind of gas.Can use with the on-screen keyboard 850 (keypad) of input field and input numerical value, or use up/down arrow 860 (up/down arrows) to increase respectively or reduce the flow of every kind of gas at label 830 and 840 places.In certain embodiments, flow can be specially the weight or volume in a period of time.In other embodiment, also can show the ratio (can be called gas ratio or concentration) of fluid-phase to other fluids or total flow.Can show the numerical value corresponding to every kind of concrete flow of gas.In various embodiments, shortcut panel 820 (quick key panel) can comprise several shortcuts 821,822,823 and 824 (quick keys).Each shortcut 821,822,823 and 824 can allow user to select fast pre-set various parameters, i.e. the various gas of the quick setting of a key comprises the concrete flow of oxygen.In the variant embodiment having, same configurable one or more shortcuts are for the selection of balanced gas flow.Balanced gas Selection Floater 810 (balance gas selection panel) can allow user to select balanced gas, in illustrated embodiment, has selected air as balanced gas.
The selected nitrous oxide of 800 display systems of screen display interface shown in Fig. 8 B is as balanced gas.In other deformables embodiment, can be used for controlling the diagram flow of other available gas in addition with the similar label of label 830 and 840, namely, in the time that system is used for controlling other various gases, flow label can be arranged to this figure embodiment similar.In certain embodiments, can on screen display interface 800, provide icon, button, hurdle or similar fashion to select the timing of anesthetic, narcotic dosage and/or anesthetic transmission/anesthesia ventilation.
Embodiment shown in Fig. 7 A-8B is only exemplary, its objective is total flow control model and directly function and the difference of flow control mode are shown, and be not concrete layout or the outward appearance of graphic user interface, the layout at interface can change according to actual needs or change with outward appearance.In addition, this screen display interface can comprise supplementary features, detail of information, control, figure, the numerical value of arbitrary number and/or other information that are associated with other aspects of supply, flow, rate of release and/or Anesthesia machine.
Fig. 9 A is depicted as a schematic diagram of a kind of Anesthesia machine screen display interface 900 (on-screen display), and it is for selecting the relative discharge of oxygen and balanced gas in total flow control model.As shown, display 950 (display) can provide screen interface to select to provide/be transferred to patient's total gas flow rate and the oxygen flow with oxygen concentration, ratio and/or occurrence form.Those embodiment and various combination that the function of screen interface and aforementioned combination Fig. 7 A-8B describe are similar.
Except showing on display 950 screen display interface as shown in the figure, Anesthesia machine can show the various remote measurement/Monitoring Data associated to patient, and the associated information of gas flow and/or transmit relevant information with one or more anesthetic on display 950.Available various input 930 (inputs) changes the shown content of display 950, and/or controls this Anesthesia machine.
In primary importance, be nitrous oxide by selector switch 970 (selection toggle) selection balanced gas, can allow operator to pass through the screen of display 950 and/or the flow of each electronic flow selector switch 915 and 917 (electronic flow selectors) control oxygen and nitrous oxide.In the second place, selector switch 970 is shown as and selects air as balanced gas, can allow operator to pass through the screen of display 950 and/or the flow of each flow selector switch 915 and 917 control oxygen and air.The kind of balanced gas depends on the position of selector switch 970, various traffic monitoring equipment (flow ratemonitoring devices) and ratio measure equipment (ratio measuring devices, or concentration measurement equipment) 905 and 920 can show the flow of one or more gases and/or combination of gases.
Although illustrated embodiment has presented two electronic flow selector switchs 915 and 917, can use any several target flow selector switch and associated gas.For example, configurable flow control system is to allow electronics and the manual control for subsequent use of use 1,2,3,4... or N kind gas or liquid.In certain embodiments, a configurable more than flow selector switch (for example knob, toggle switch, dial (of a telephone), slide block, switch) is to control the flow of same gas.Can control the number of being selected the gas of knob control by the corresponding flow control of any number by additional selector switch 970 and/or multiselect position selector switch.Flow selector switch can comprise and/or use any analog or digital selection mechanism, includes but not limited to the knob shown in figure.
In total flow control model, adjust the total flow of gas with the first electronic flow selector switch 915.In other words can adjust with the first electronic flow selector switch 915, the total flow of oxygen and selected balanced gas (air and nitrous oxide).Can control the oxygen concentration/ratio mixing with selected balanced gas (air or nitrous oxide) with the second electronic flow selector switch 917.This selection can be encoded and is sent to electronic controller by rotary encoder.Concentration/ratio and the flow needing can be calculated by electronic controller.Electronic controller can be controlled with the selection signal after coding the flow of each gas subsequently by the electronic flow control valve such as electronics proportioning valve.
Numerical value and associated avatars 905 and 920 can be shown as direct flow (for example liter/min) or the percentage flow of every kind of controlled air.Alternatively, this numerical value (numeric values) 905 and/or diagrammatic representation (graphical representations) 905 can show selected flow, the total flow of every kind of gas, the ratio of two kinds of gases, with respect to the total flow of optimal flux and/or other numerical value, chart, figure, number percent, and similar information.
In the illustrated embodiment, display 950 shows that air is as the balanced gas of selecting.The first electronic flow selector switch 915 is chosen as 2.0 by total flow, has only shown that total flow is containing the numerical value of unit here, total flow be actually by liter/min, kg/min and/or other volume or weight units measure with the ratio of time.Can use the second electronic flow selector switch 917 to select oxygen to account for the number percent (be illustrated as 75%, also claim concentration) of total gas couette.
Fig. 9 B is depicted as a kind of panoramic view of Anesthesia machine screen display 950, and it for selecting the relative discharge of oxygen and balanced gas under direct flow control mode.As shown in the figure, under direct flow control mode, the flow of air is made as 0.5 liter/min by the control interface of the first electronic flow selector switch and/or screen display 950.The flow of oxygen is made as 1.5 liters/min by the control interface of the second electronic flow selector switch and/or screen display 950.Balanced gas Selection Floater 953 in balanced gas selector switch 970 and/or screen display 950 can be used for selecting nitrous oxide or air as balanced gas.In other embodiment, can use and control diversified gas and liquid.
Any according in various embodiment described herein, can be applicable to various gas Flowrate Control Systems.In the above-described embodiment, gas Flowrate Control System is embodied in the parts of anesthesia transmission system.In these embodiments, the mixed airflow of one or more gases can inject or add anesthetic, such as flowing to patient by evaporator after mixing with aforesaid gas after liquid anesthetic evaporation.
More than applied principle and the embodiment of the various examples of specific case to the application and set forth, the explanation of above embodiment is just for helping to understand the application; , for one of ordinary skill in the art, according to above-mentioned example, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application meanwhile.
Claims (18)
1. an electronic flow control system, is characterized in that, comprising:
The first electronic flow control valve, for optionally controlling the flow of first fluid;
The second electronic flow control valve, for optionally controlling the flow of second fluid;
Processor; And
With the non-volatile computer-readable recording medium of described processor communication, described computer-readable recording medium comprises the instruction of controlling described processor execution flow control methods, and described flow control methods comprises:
Display graphics user interface;
Receive the mode select signal of direct flow control mode and total flow control model alternative;
In the time having selected total flow control model, receive total flow to described first fluid and second fluid, second fluid is accounted for to the input signal that the ratio of total flow regulates; And
In the time having selected direct flow control mode, receive the input signal that the flow of flow to described first fluid and second fluid regulates respectively; And
Transmit a control signal to described the first electronic flow control valve and the second electronic flow control valve, and the described first fluid of the corresponding control of input signal based on receiving and the flow of second fluid.
2. electronic flow control system as claimed in claim 1, is characterized in that, described second fluid is oxygen.
3. electronic flow control system as claimed in claim 1, is characterized in that, described first fluid is nitrous oxide or air or its mixing.
4. the electronic flow control system as described in claim 1 or 3, is characterized in that, described system also comprises the selection module for selecting first fluid kind.
5. electronic flow control system as claimed in claim 1, is characterized in that, described graphic user interface comprises balanced gas Selection Floater, elects nitrous oxide and airborne one or more as first fluid for allowing.
6. electronic flow control system as claimed in claim 1, is characterized in that, described graphic user interface comprises at least one shortcut, for directly selecting at least one particular preset flow of second fluid.
7. electronic flow control system as claimed in claim 1, is characterized in that, described graphic user interface comprises model selection interface, for to direct flow control mode and total flow control model wherein one select.
8. electronic flow control system as claimed in claim 1, is characterized in that, described graphic user interface comprises:
The first input field, when system is during in total flow control model, the first input field is for receiving the input signal of controlling described first fluid and second fluid total flow; And
When system is during in direct flow control mode, the first input field is for receiving the input signal of controlling described first fluid flow; And
The second input field, for receiving the input signal of controlling described second fluid flow.
9. electronic flow control system as claimed in claim 1, is characterized in that, the numeric keypad that described input signal comprises from described graphic user interface is inputted with numerical value form.
10. electronic flow control system as claimed in claim 1, is characterized in that, described the first electronic flow control valve and/or the second electronic flow control valve are electronics proportioning valves.
11. electronic flow control system as claimed in claim 1, is characterized in that, also comprise evaporator, for being injected at least one of described first fluid and second fluid after anesthetic evaporation.
12. 1 kinds of electronic flow control system, is characterized in that, comprising:
The first electronic flow control valve, for optionally controlling the flow of first fluid;
The second electronic flow control valve, for optionally controlling the flow of second fluid;
Processor; And
With the non-volatile computer-readable recording medium of described processor communication, described computer-readable recording medium comprises that instruction causes described processor manner of execution, and described method comprises:
Display graphics user interface;
Receive the selection of described the first and second fluid total flows; And
Receive the selection of described second fluid flow; And
Transmit a control signal to described the first and second electronic flow control valves, and select based on the flow of described reception, control the flow of described the first and second fluids.
13. electronic flow control system as claimed in claim 13, is characterized in that, the selection that receives described second fluid flow comprises the selection of the described second fluid of reception with respect to total flow ratio.
14. 1 kinds of electronic flow control methods, is characterized in that, comprising:
Receive the selection of direct flow control mode and total flow control model alternative;
In the time having selected total flow control model, receive the flow that the total flow of described first fluid and second fluid is controlled and select; And
In the time having selected direct flow control mode, receive the flow that the flow of described first fluid is controlled and select;
Receiving the flow that the flow of described second fluid is controlled selects;
Select according to received flow, transmit a control signal to respectively the first electronic flow control valve and the second electronic flow control valve, to control respectively the flow of the first fluid flowing through and the flow of second fluid.
15. electronic flow control methods as claimed in claim 14, is characterized in that, also comprise receiving nitrous oxide and airborne one or more are elected to be to the selection signal of described first fluid.
16. electronic flow control methods as claimed in claim 14, is characterized in that, it is the multiple shortcut inputs that comprise by graphic user interface that the flow that the flow of described second fluid is controlled is selected.
17. electronic flow control methods as claimed in claim 14, is characterized in that, the model selection interface comprising by graphic user interface receives the selection of direct flow control mode and total flow control model alternative.
Electronic flow control method as claimed in claim 14, is characterized in that, receives flow and selects to be included in the graphic user interface input numerical value corresponding with flow that contains numeric keypad.
18. electronic flow control methods as claimed in claim 14, is characterized in that, in the time having selected total flow control model, control the flow of described second fluid flow and select to comprise the ratio of second fluid with respect to total flow.
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| CN109771767A (en) * | 2019-01-29 | 2019-05-21 | 深圳市科曼医疗设备有限公司 | A kind of pneumatic spare flowmeter control system of Anesthesia machine |
| WO2021134352A1 (en) * | 2019-12-30 | 2021-07-08 | 深圳迈瑞生物医疗电子股份有限公司 | Backup flow control system and method applicable to anesthesia machine |
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| CN103809620B (en) | 2017-10-10 |
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