CN103800984B - Valve module for controlling fluid flow - Google Patents
Valve module for controlling fluid flow Download PDFInfo
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- CN103800984B CN103800984B CN201210453797.1A CN201210453797A CN103800984B CN 103800984 B CN103800984 B CN 103800984B CN 201210453797 A CN201210453797 A CN 201210453797A CN 103800984 B CN103800984 B CN 103800984B
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Abstract
The invention relates to a valve module for controlling fluid flow, wherein the fluid flow is selected by using an electronic type flow selector of a fluid flow control system. The fluid flow control system can be operated in an electronically controlled mode and in a mechanical mode. When the system is at the mechanical mode, a standby mechanical flow selector is used for selecting the fluid flow. The standby mechanical flow selector comprises position detection equipment for determining the fluid flow. The fluid selector remains at a fixed position while a valve rod in the fluid flow control system axially moves relative to a needle valve.
Description
Technical field
The application is related to control fluid flow by valve module；Specifically, the application is related to for keeping relative to rotation
The Traffic selector and valve position testing equipment of valve rod axial restraint.
Background technology
The air-channel system of anesthetic machine can typically be divided into anesthetic gaseses induction system, and anesthetic gaseses conveyer device, anesthesia is exhaled
Suction machine, respiratory system and anesthetic gaseses cleaning system etc. five is most of.In anesthetic gaseses induction system, flow control system
It is requisite part.The part can be in real time controlled the fresh gas flow for flowing through patient end, to meet reality
Needs when clinical.
For the system, there are part Higher-end machines on the market using micro-scale valve to carry out automatically controlled regulation to flow.But
More machines are then to be widely used mechanical flow regulating valve (needle-valve) to realize flow-control, and the control of guest operation
Knob processed is rigidly connected on valve rod of needle valve, and guest operation knob will directly drive valve rod of needle valve, realize needle-valve valve port opening with
And the regulation of flow.Anesthetic machine generally comprises three gas branch roads, air, oxygen and laughing gas.Each branch road can be separately configured
One needle-valve to the flow for flowing through the branch road being adjusted.The ultimate principle of needle-valve is realized to valve port by a screw pair
The regulation of aperture size, and then the flow that control is flowed through.However, during screw pair rotates, valve rod can simultaneously produce axle
To displacement, the operation knob being rigidly connected on valve rod will be moved.And the range of accommodation of valve port opening is bigger, operation
The axial displacement of end knob also will be bigger.When whole machine is inconsistent to the traffic demand of different branch gas, three branch roads
Valve port opening size will be different, and now the multiple operation knobs on guidance panel just occur that axial distance is uneven existing
As, have influence on the appearance and human-computer interaction interface of whole machine, for the operating experience of high-end customer will also result in it is certain
Adverse effect.
The content of the invention
In existing anesthetic gaseses induction system, doctor in varied situations can be by electric-controlled type or mechanical control wherein
The flow of the live gass of conveying such as oxygen, laughing gas and air.In various embodiments, in "on" position when, one or many
Individual turnable Traffic selector such as operation knob is used for electronic type and controls gas flow.Anesthetic gaseses induction system can also include
Standby mechanical control equipment, for controlling the flow of one or more gas in unpowered state.A kind of embodiment
In, the combination of three-way valve, and/or normally open valve and normally close valve is used to optionally allow for being grasped from electronic type proportioning valve or mechanical type
Make the gas flowing of needle-valve.Any type of flow control system can be made with or without needle valve assembly, Traffic selector and position
Testing equipment.
In some embodiments, when fluid flow control system is in automatically controlled pattern, three-way valve or other switching valves set
The standby fluid allowed from electronic type proportioning valve flows to patient end.When fluid flow control system in non-power status or
Select as during control manually, three-way valve allows the fluid from electronic type proportioning valve to flow to patient end.Alternatively, the application is retouched
The switching valve equipment stated may include the combination of normally open valve and normally close valve, to substitute three-way valve or make together with reference to three-way valve
With.In some embodiments, switching valve equipment is located between fluid input and control valve for fluids；Other embodiments
In, switching valve equipment is located between control valve for fluids and fluid exit.
Electronic flow control valve is used to selectively receive the fluid from fluid input.Doctor can pass through electronic type
Traffic selector is able to select the flow of the first fluid for flowing through electronic flow control valve.For example, electronic flow is selected
The content that device is selected carries out electronic type coding by encoder, then encoded selection content is sent to into electronic type control
Device.Based on the selection content of electronic flow selector, the transmittable control signal of electronic controller is to electronic flow control
Valve is to control fluid flow.Electronic flow control valve may include electronic type proportioning valve, and electronic flow selector may include
Can be by the knob of doctor's manual rotation.Alternatively, electronic flow selector may include any numeral miscellaneous and/or mould
Intend selector.
In some embodiments, the flow of each available fluid is controlled by unique electronic flow control valve.
Unique electronic flow selector is used to control the flow of each electronic flow control valve.Or, selectively distribute
One or more electronic flow selectores are to control two or more electronic flow control valves.For example, system may include
Three electronic flow control valves, one is used to control oxygen, and one is used to control air, and another is used to control laughing gas.System
System can also be provided only with two electronic flow selectores, and one of them may be selected is used to control the flow of air or the stream of laughing gas
Amount.By fixed allocation or selectively distribute any electronic flow selector, any one or more can be controlled and be can use
The flow of fluid.
One or more mechanical flow control valves are used to control the flow of each available fluid.For example, by unique
Needle-valve is mechanically controlling the flow of each available fluid.The mechanical flow selector manipulated by doctor, such as knob or cunning
Block, can be used to mechanically adjust the flow by each needle-valve.In some embodiments, when system is in automatically controlled pattern,
Can disable and/or retraction mechanical flow selector is to prevent the Flow-rate adjustment of maloperation.
In some embodiments, the turnable valve rod of needle-valve connects with the engagement cavity of turnable Traffic selector such as knob
Close.Turnable Traffic selector is located relative to the fixed position in the axial direction of valve shell.The engagement of turnable Traffic selector
Chamber is used to accommodate the end of valve rod.When rotating turnable Traffic selector, valve rod also concomitant rotation.Valve rod can be moved axially,
So as to increase or decrease fluid flow.In other embodiment, valve rod is additionally operable in engagement intracavity movement.Therefore, flow choosing
The fixed position that device can be located in the axial direction relative to valve shell is selected, while still keeping rotatably engaging with valve rod.
Engagement cavity and valve rod can be any non-circular shapes, so that valve rod holding shaft can also be free while engagement upwards
Ground axial movement.For example, engagement cavity and valve rod can be hexagons or with the protrusion for engaging/intrusion portion.Engagement cavity and
Valve rod can be oval, square, hexagon, annular intrusion portion/protrusion, and/or any n sides polygon or other are non-circular
Shape.
Under "on" position, by adjusting one or more electronic flow selectores, can control to flow through one or more
The flow of one or more fluid of electronic flow control valve.In the energized state, disable and/or otherwise stop standby
Mechanical flow controls valve, to prevent the combination of its supply fluid or multiple fluid.Additionally, in the energized state, prohibit
With and/or the related mechanical flow selector of standby mechanical flow control valve of retracting, in case fluid stopping amount is conditioned.
Under unpowered state or when being selected to manual override, electronic flow is disabled and/or otherwise disabled
Control valve, to avoid the combination of its supply fluid or multiple fluid.Mechanical flow selector is enabled or ejects, to allow doctor
Control manually flows through the flow of one or more fluid of standby mechanical flow control valve.
Position indicator is relevant relative to the axial displacement of runner with valve rod, to the position for indicating valve rod.Based on valve rod
Relative to the position of runner, position indicator may indicate that current selected flow.Valve module includes what is be connected with position indicator
Position detector, for detecting outflow according to the relative position of valve rod.For example, it is such as big to make fluid flow be target flow
In flow threshold, less than flow threshold, maximum stream flow, and/or zero, position detector can determine that the position that valve rod is translated.
In some embodiments, position detector and/or position indicator may be used to indicate present flow rate (as being located at zero-sum
Any flow between maximum stream flow) or only when target flow is reached just indicate (as initial state flow, maximum stream flow,
And/or zero delivery).Position indicator may include one or more protrusions on valve rod and/or intrusion portion, for working as stem shaft
Trigger position detector when predeterminated position is moved to.Protrusion and/or intrusion portion are arranged on the axial floating bush of valve rod.
In some embodiments, position indicator may include the pin being connected with valve rod, when valve rod move axially to it is default
During position, pin trigger position detector.Pin is moved axially with the axial movement of valve rod.Alternately, pin is by touching
Rotating disk triggering is sent out, triggering rotating disk is rotated with the rotation of valve rod.According to valve module inner valve stem relative to the axial displacement of runner
Relative position, triggering rotating disk makes pin move relative to position detector.
In some embodiments, in retraction mechanical flow selector, such as system recovery is powered or system resets
During reset, the flow of each standby mechanical flow control valve is cleared and is reset to initial state (home state), wherein,
When system enters unpowered state, gas presses pre-set gas flow automatic flowing.
In a kind of embodiment, electric-controlled type flow control valve includes electric-controlled type motor, and for adjustment mechanical type is flowed through
The fluid flow of flow control valve such as needle-valve.In the various embodiments that the application is provided, described fluid is gas, such as oxygen
Gas, laughing gas and/or air.However, the various embodiments of system and method described herein are suitable for any various each
The liquid and/or gas of sample.
Description of the drawings
Fig. 1 is the schematic diagram of the anesthetic gaseses induction system for being provided with three mechanical flow control selections devices, wherein, this three
Individual mechanical flow control selections device is respectively used to control the flow of oxygen, laughing gas and air.
Fig. 2 is the fiber crops for being provided with two electronic flow control selections devices and three standby mechanical flow control selections devices
The schematic diagram of liquor-saturated gas delivery system, wherein, electronic flow control selections device is used to select the every of three road gases all the way
The control of selecting property, mechanical flow control selections device is used for being controlled per gas all the way.
Fig. 3 for the control panel of anesthetic gaseses induction system close up view, including for selectively controlling oxygen
With laughing gas or two electronic flow control selections devices of oxygen and air.
Fig. 4 is the close-up view of the control panel of anesthetic gaseses induction system, controls including standby mechanical flow
Part, to the flowing of independently controlled three road gas.
Fig. 5 is mechanical flow control selections device standby in a kind of embodiment in retracted mode and in ejection
The schematic diagram of state.
Fig. 6 is another view of the control panel of anesthetic gaseses induction system, selects including electronic flow control
Select device and standby mechanical flow control selections device.
Fig. 7 is the signal of the mechanical part for the three mechanical flow control selections devices that selectively eject and retract
Figure.
Fig. 8 is the bottom for controlling the needle valve assembly of three mechanical flow selectores and correlation of the flow of three road gases
View, including position detecting element.
Fig. 9 is the sectional view of each part in telescopic component, and telescopic component is used to selectively eject Traffic selector component
Mechanical flow selector in interior.
Figure 10 A are the exploded view of Traffic selector component and related needle-valve.
Figure 10 B are another exploded view of Traffic selector component and related needle-valve.
Figure 10 C are the assembling figure of Traffic selector component.
Figure 11 A are the schematic diagram that Traffic selector is engaged by holding screw with knob bearing.
Figure 11 B are the sectional view of Traffic selector, knob bearing and holding screw.
Figure 12 for valve rod schematic diagram, including for ensureing also to rotate and connect with Traffic selector while valve rod is moved axially
The flat bit architecture for closing.
Figure 13 is for engaging with valve rod rotation and keeps the knob freely moved axially relative to Traffic selector to turn
The schematic diagram of dynamic bearing.
Figure 14 A are the sectional view of telescopic component, and wherein Traffic selector component is in retracted mode, and needle-valve is in and closes completely
Closed state.
Figure 14 B are the sectional view of telescopic component, and wherein Traffic selector component is in ejection state, and needle-valve is in and closes completely
Closed state.
Figure 14 C are the sectional view of telescopic component, and wherein Traffic selector component is in ejection state, and needle-valve is beaten in part
Open state.
Figure 14 D are the sectional view of telescopic component, and wherein Traffic selector component is in ejection state, and needle-valve is in and beats completely
Open state.
Figure 15 A are that the flow of the axial floating bush, position indicator and position detector that are provided with related to valve rod is selected
The top view of device assembly and needle-valve.
Figure 15 B for Traffic selector component top exploded view, show engagement cavity that Traffic selector is provided with and its
The possible embodiment of corresponding valve rod.
Specific embodiment
Though it is useful using electronic flow control to gas in anesthetic gaseses course of conveying, it is also required to provide mechanical
Control is used as standby.For example, during system dead electricity, anesthetic gaseses course of conveying remains a need for continuing supply gas in dead electricity.Some
In embodiment, in anesthetic gaseses course of conveying, can be square using electronic type control device such as vernier knob and encoder
Just electronic type adjustment is carried out to the flow of one or more gas.When there is dead electricity or unavailable power supply, can be using independent
Standby Traffic selector (such as knob).In these embodiments, doctor needs to enable standby knob, by machine from electric-controlled type
Manual mode is switched to, and/or guarantees mechanical knob is set to the state of needs before manual mode is switched to.
Dead electricity occurs when anesthetic gaseses are conveyed in critical medical procedure will cause confusion.Doctor is being seen for controlling together
When two sets of knobs occurs in a kind of gas, inconvenience may be felt and/or puzzlement is felt.In the various embodiments of the application, when
When fluid flow control system is in automatically controlled pattern, Traffic selector such as knob is electric-controlled type, and now standby flow is selected
Device is retracted mode or for unavailable.Under unpowered state, or doctor is selected when enabling back-up system, standby flow
Selector ejects or is available.
Switching valve equipment, mechanical operation valve, electronic type operation valve, controller, encoder, Traffic selector and/or sheet
Depending on number of the number of other components of application description according to available gas (or liquid).In various anesthetic gaseses induction systems
In, individually oxygen, laughing gas and/or air can be controlled per gas all the way and/or pari passu to per gas all the way
It is controlled.To convey anesthetis, using vaporizer and one or more gas can be mixed use.
In a kind of embodiment, gas (or liquid) flow can be caused mechanical type stream by switching valve equipment from gas supply source
Control valve such as mechanical operation needle-valve, or electric-controlled type flow control valve such as electronic type proportioning valve is caused, this is depending on system
It is no to have electricity or whether enable back-up system.
If system is in automatically controlled pattern, encode selected flow, and by coding after selected flow be sent to controller.
Then, controller sends control signals to electronic type proportioning valve to obtain selected flow.Telescopic component makes standby flow
Control valve remains retracted mode.In addition, telescopic component can make standby flow control valve remain unavailable or nonfunctional shape
State.
If system enables back-up system in unpowered state or doctor, standby Traffic selector will be ejected,
Enable and/or otherwise used.Then the selected flow of Traffic selector will be changed mechanically to mechanical type
Operation flow control valve such as needle-valve, with the flow for realizing selecting.
According to various embodiments, switching valve equipment may include normally open valve and normally close valve, so as to alternatively prevent from (or
It is transported to) the gas flowing of mechanical operation needle-valve and electronic type proportioning valve.Switching valve equipment can be by any valve and/or control
Equipment is realized, for example, realized by three-way valve.
In some embodiments, needle-valve used in mechanical flow control valve, the needle-valve combines electronic type motor
Use can be considered electronic flow control valve.In various embodiments, Traffic selector include any number of knob, button, can
The actuator of rotation, slide block, and/or other analog and/or digitals select equipment.
In some embodiments, the turnable valve rod of needle-valve connects with the engagement cavity of turnable Traffic selector such as knob
Close.Turnable Traffic selector is located relative to the fixed position in the axial direction of valve shell.The engagement of turnable Traffic selector
Chamber is used to accommodate the end of valve rod.When rotating turnable Traffic selector, valve rod also concomitant rotation.Valve rod can be moved axially,
So as to increase or decrease fluid flow.In other embodiment, valve rod is additionally operable in engagement intracavity movement.Therefore, flow choosing
The fixed position that device can be located in the axial direction relative to valve shell is selected, while still keeping rotatably engaging with valve rod.
According to valve rod relative to runner position, position indicator may indicate that current selected flow.Some embodiments
In, position indicator and position detector be used to indicating present flow rate (such as any flow being located between zero-sum maximum stream flow) or
Just indicate (such as initial state flow, maximum stream flow, and/or zero zero delivery) only when the flow specified is reached.
In some embodiments, controller or control system can pass through combining for any hardware, firmware, and/or software
To realize.For example, controller can be realized using field programming gate array (FPGA).In some embodiments, for transmission control letter
Number other electron component for being different from gas Flowrate Control System to the electronic controller of electronic flow control valve, it is such as micro-
Processor and other electronic components related to display, touch screen, data storage, data cube computation etc..Electronic flow control
Reliability improve can by the way that electronic flow control section is isolated from the other electron component of anesthetic gaseses conveying equipment,
And/or realized using hardware rather than software mode.
Although the application is that each embodiment and embodiment, wherein most are described with gas Flowrate Control System
Embodiment is applied to any number of fluid, including various gases and liquid after being directly applied for or changing.Here as
The gas of the anesthetic gaseses conveying of gas example, such as oxygen, laughing gas and air, can be by fluid flow control described herein
System processed is controlled, and the fluid flow control system can be described as gas Flowrate Control System.
Some equipment or framework used in embodiment disclosed in the present application are common equipment or framework, such as general meter
Calculation machine, computer programming instrument and technology, digital storage media and communication network.Computing device or other electronic controllers
May include processor, such as microprocessor, microcontroller, logic circuit and/or similar device.Processor may include that dedicated processes set
Standby such as special IC (ASIC), programmable logic array (PAL), programmable logic array (PLA), PLD
(PLD), FPGA or the equipment of other customizations and/or process.Computing device may also include machine-readable storage device, such as non-volatile
Property memorizer, static state RAM, dynamic ram, ROM, CD-ROM, disk, tape, magnetic card, light-card, flash memory or other are machine-readable
Storage medium.The various aspects of some embodiments can be achieved by hardware, software, firmware or its combination.
Each embodiment of the application is better understood with reference to accompanying drawing, similar components are generally with similar number in accompanying drawing
Word is marked.As shown in drawings or described, in disclosed each embodiment, each component can be given by various different configurations
To arrange and design.Additionally, the feature, structure or operation described by a kind of embodiment can be used for another embodiment
In, a kind of feature either described by embodiment, structure or operation can be with the feature described by another embodiment, knots
Structure or combination of features are used.To avoid the description to the application each side unclear, other embodiment to known structure,
Material or operation do not provide specific diagram or describe.
Therefore, the embodiment of the application system as described below or method is not to limit the application to be claimed
Scope, and be only the embodiment for expressing possibility.Additionally, each step that method is related to need not perform in a designated order or
Even if person's order is performed, each step is also without Exactly-once.
In some embodiments, anesthetic gaseses induction system is by electronic flow control and standby mechanical flow
The flow of control valve control oxygen, laughing gas and air.When power supply can use, anesthetic gaseses induction system can using be controlled by one or
The electric-controlled type flow control valve of multiple electronic flow selectores.Doctor can pass through the flow of one or more gas of input and fiber crops
Liquor-saturated gas delivery system is interacted.Such as, doctor can be input into by electronic flow selector.Electronic flow selector
Including mechanical circular rotating knob and rotary encoder.
When anesthetic gaseses induction system is in "on" position, user can be grasped using electric-controlled type or selection mechanical type
Make.When anesthetic gaseses induction system is in unpowered state, anesthetic gaseses induction system can use mechanical type.In automatically controlled mould
During formula, three road gases are that oxygen, laughing gas and air flow through electronic flow control valve, oxygen proportion controller and/or check valve.
In mechanical mode when, this three tunnels source gas flows through standby mechanical flow control valve, oxygen proportion controller, and/or returns
Pressure valve.
In some embodiments, the gas ratio for needed for obtaining, user can start to sequentially add source gas from zero delivery
To total flow, and note the impact of the total flow of each road gas.A kind of gas ratio in alternate embodiment, for needed for obtaining
Then example, user can adjust each road gas with needed for obtaining from the beginning of " initial state (home state) " flow of oxygen
Flow.Oxygen proportion controller can ensure that the clinical safety ratio of oxygen-laughing gas.
Fig. 1 shows the three mechanical flows control choosing for being provided with the flow for being respectively used to control oxygen, laughing gas and air
Select the anesthetic gaseses induction system 100 of device 150.Diagram anesthetic gaseses induction system 100 may include respiratory system 110, anesthesia gas
Other parts of evacuator body device 130, and/or anesthetic gaseses induction system.Anesthetic gaseses induction system 100 may include go-cart 140
And/or wheel 145 is increasing portability.Electronic displayss 120 can show for doctor and conveyed with regard to flow and/or anesthetic gaseses
The information of journey.Additionally, electronic displayss 120 can touch to show, to allow doctor to select flow.
Fig. 2 shows and is provided with the standby mechanical flow control choosing of two electronic flow control selections devices 251 and three
The anesthetic gaseses induction system 200 of device 260 is selected, electronic flow control selections device is used to selectively control in three road gases
Per all the way, standby mechanical flow control selections device be used to controlling respectively in this three roads gas per all the way.Anesthetic gaseses are defeated
System 200 is sent to include other parts in respiratory system 210, anesthetic gaseses vaporizer 230, and/or anesthetic gaseses induction system.
Anesthetic gaseses induction system 200 may include go-cart 240 and/or wheel 245 to increase portability.Electronic displayss 220 can be doctor
Teacher shows the information with regard to flow and/or anesthetic gaseses course of conveying.Additionally, electronic displayss 220 can touch to show,
To allow doctor to select flow.
When anesthetic gaseses induction system 200 is in automatically controlled pattern, three standby mechanical flow control selections devices 260 are protected
Hold retraction and/or down state.When anesthetic gaseses induction system 200 enters mechanical mode (such as because power down or user select
Select), these three standby mechanical flow control selections devices 260 will be ejected, unblock, and/or for other available means.It is such as front
State, various internal structures, switch, normally open valve, normally close valve, three-way valve, and/or other components can be used to adjust anesthetic gaseses conveying
Gas flow in system 200, this is in manual mode or electric-controlled type depending on system.
Fig. 3 shows the feature of the control panel 300 of anesthetic gaseses induction system, including for selectively controlling
Two electronic flow control selections devices 315 and 317 of oxygen and laughing gas or oxygen and air.As illustrated, anesthetic gaseses are defeated
Send system include panel 330, for show the various telemetries related to patient and gas flow correlation information, and/or
The information related to one or more anesthetis conveying.Different importations 340 can be used for change panel 330 display and/
Or control anesthetic gaseses induction system.
At first position, selecting switch 310 can allow doctor to pass through corresponding electronic flow selector 315 and 317
The flow of control oxygen and laughing gas.In the second position, selecting switch 310 can allow doctor to pass through corresponding Traffic selector
The flow of 315 and 317 control oxygen and air.According to the position of selecting switch 310, various flow monitoring equipment and proportion measurement
Equipment 320,325 and 327 may indicate that the flow of the flow of one or more gas and/or the combination of multipath gas.Each embodiment party
In formula, oxygen and/or other gases can be input into and exported using the importation of auxiliary and output par, c 350.
Although illustrated embodiment is illustrated that two electronic flow selectores 315 and 317, arbitrary number can be used
Traffic selector and any road gas.For example, flow control system be configurable to allow to all the way, two tunnels, three tunnels, four
Road ... or N roads gas or liquid carry out electronic type control and standby mechanical control.In some embodiments, one
Traffic selector (such as knob, switch, dial plate, slide block, switch) above can be used to control the flow with gas all the way.It is additional
Selecting switch 310 and/or multiposition selecting switch can be used to control each road gas, each road gas is controlled by arbitrarily corresponding
Flow-control selects knob.Traffic selector is included and/or using any analog or digital selection mechanism, including shown in each figure
Knob is selecting flow.
Fig. 4 shows the overall picture of the control panel 400 of anesthetic gaseses induction system, including for independently controlled three road gas
The standby mechanical flow control section 481,482 and 483 of body.When anesthetic gaseses induction system is that "on" position and user do not have
There is selection mechanical type, anesthetic gaseses induction system is in automatically controlled pattern.In automatically controlled pattern when, according to the selection of selecting switch,
Oxygen and laughing gas or oxygen and air are controlled using two electronic flow selectores 415 and 417.Electronic displayss 430 can
Show the information related to the flow of one or more gas, anesthetis information, and/or patient's telemetry.Can use various
Touch importation 440.Auxiliary control panel 450 can be used for one or more gas to being supplied to auxiliary equipment and grasp
Make.
When anesthetic gaseses induction system has selected mechanical type, anesthetic gaseses delivery system in unpowered state and/or user
System is in mechanical mode.In mechanical mode when, by mechanical type panel 455 control one or more gas flow and/or
Narcotic conveying quantity.Under unpowered state, electronic displayss 430, touch importation 440, electronic flow control
Selector processed 415 and 417 and other electron component are unavailable, when selecting mechanical type under "on" position, in these elements
One or more element is unavailable and/or disables mode for other.
Mechanical type panel 455 include summation flowmeter indicator 490, mechanical type selector 485 (such as spring-loaded plunger) and one or
Multiple manual types operate Traffic selector 481,482,483.According to each embodiment, manual type operation Traffic selector can be used for
Operation is per road available gas or per the available critical gas in road.In each embodiment, anesthetic gaseses induction system is in automatically controlled mould
During formula, manual type operation Traffic selector 481,482,483 is unavailable, retraction, locking, and/or other inoperable modes；
In mechanical mode when, manual type operation Traffic selector 481,482,483 for it is available, eject, unblock, and/or other can grasp
Make mode.
Fig. 5 illustrated embodiments 500 show standby mechanical flow selector 510 in retracted mode 501,
520th, 530 and in eject state standby mechanical flow selector 510,520,530.Illustrated embodiment includes saturating
View (figures of 501 and 502 tops) and front view (figures of 501 and 502 lower sections).As illustrated, summation flowmeter indicator 550 is used for
Indicate the flow of one or more gas.Mechanical type selector 540 enables user by the anesthetic gaseses in "on" position
Induction system enters mechanical mode.When system switchs to unpowered state from "on" position, system is automatically into manual mode.It is in
During automatically controlled pattern, Traffic selector 510,520 and 530 remains retracted mode (501), because it is not prominent, unavailable and/or
Other inoperable modes, so as to making troubles to user or perplexing.In manual mode when, Traffic selector 510,
520 and 530 eject (502), and by protrusion, available and/or other modes user is reminded, and inform that user can be with its control all the way
Or the flow of multipath gas.
In some embodiments, the default location of mechanical flow control selections device is on 0 liter/min.For example, with
The default location of the related mechanical flow control selections device of the flow of oxygen is 2 liters/min of initial state, so as to when anesthesia
Gas delivery system in use power down when, can continue as patient provide critical gas (or liquid).
Fig. 6 shows another kind of view of the control panel of anesthetic gaseses induction system, including electronic flow selector
615th, 617 and standby mechanical flow selector 610,620,630.In automatically controlled pattern when, standby mechanical flow choosing
Device 610,620 and 630 is selected for retraction, locking, unavailable and/or other inoperable states.The flow of two-way or more gas
Can be controlled by electronic flow selector 615 and 617.Optimization indicator 612 is indicated by electronic flow selector 615
The total gas flow rate selected with 617.
Because dead electricity and/or response user select mechanical type selector 640, anesthetic gaseses induction system to enter manual mould
Formula.In a kind of embodiment, mechanical type selector 640 includes plunger, for triggering electromagnetic switch or motor to eject machinery
Formula flow-control selector 610,620 and 630.In manual mode when, flow indicator 650 is indicated by standby mechanical type stream
The total gas flow rate that amount control selections device 610,620,630 is selected.
Fig. 7 is shown for the machinery of the three mechanical flow selectores 710,720,730 that selectively eject or retract
Device 700.According to some embodiments, machinery 700 is arranged on anesthetic gaseses induction system and/or other fluid flow controls
The inside the shell of system processed.The application combines anesthetic gaseses induction system and/or other fluid flow control system description machinery dresses
Put 700 embodiment and the embodiment of correlation.However, machinery 700 can be used in any system and equipment, wherein,
Selected and/or the button of power availability, knob or other selector meetings with responding user with selectively ejecting and retracting
It is more useful.
As illustrated, telescopic component 760 is fitted close with Traffic selector component 770.Traffic selector component includes one
Individual or multiple (being illustrated as 3) mechanical flow selector 710,720,730.Knob sheath 740 can be prevented in retracted mode
Mechanical flow selector 710,720,730 be triggered.Telescopic component 760 be used for by by Traffic selector component from retraction
Position switchs to ejected position, selectively ejects Traffic selector component 770.In addition, telescopic component 760 is used to eject flow choosing
Device assembly 770 is selected with power source-responsive interruption.
Fig. 8 shows the three mechanical flow selectores 810,820,830 and correlation for controlling three road gas flows
Needle valve assembly 851,852,853 bottom view 800.Similarly, knob sheath 840 can prevent each machine in retracted mode
Tool formula Traffic selector 810,820,830 is triggered, and prevents the axle of the relative buck plate of mechanical flow selector 810,820,830
To motion, and protect mechanical flow selector 810,820,830.Knob sheath 840 can be used to eliminating or reduce retraction and/or
Potentially extrude when ejecting mechanical flow selector 810,820,830.
According to some embodiments, each mechanical flow selector 810,820,830 has non-circular hole, to coordinate
The non-circular valve rod of each needle-valve 851,852,853, valve rod is used to make needle-valve 851,852,853 select independently of mechanical flow
Device 810,820,830 carries out axially-movable.Therefore, flow can be adjusted by the axial displacement of each needle-valve 851,852,853,
Needle-valve is still rotatably connected to corresponding each Traffic selector 810,820 and 830 to be caused to transmit user's manual operation
Moment of torsion.
As illustrated, each needle-valve 851,852,853 include corresponding pin 861,862,863 and position switch 871,
872nd, 873, for detecting whether each self-corresponding each needle-valve 851,852,853 is to completely close or in initial state.
For example, pin 861,862,863 is moved axially with the valve rod of corresponding needle-valve 851,852,853.When needle-valve 851,
852nd, 853 valve rods are in completely closing needle-valve 851,852,853 or during position in initial state, pin 861,862 and
863 relative positions that can pass through the corresponding valve rod of electronic type, mechanical type, and/or pneumatic instruction.Position switch 871,872,
873 connecting pins 861,862 and 863, to detect valve rod whether in predeterminated position.
Fig. 9 shows the phantom 900 of telescopic component and flow control assembly.As illustrated, motor 971 applies to turn round
Square in screw-like motor screw 985, with will pass through motor nut 987 apply translational motion power on pushing block 972.This is put down
The power of shifting movement is large enough to overcome the thrust of motor spring 984.Emergency button 950 and its pushing pin reset follow-up to respond
Triggering.Mechanical flow selector 910,920 is retracted together with pushing block 972.
Fig. 9 also show the top perspective of the link position of pin 962 switch 973, and position switch is reaching for detecting
To the position of the valve rod of needle-valve during preset flow 951.For example, position switch 973 can detect that when the fluid flow for flowing through needle-valve
The position of valve rod when being zero.Alternately, position switch 973 be used to detect valve rod in initial state (as described herein) or
Position when fully opening.
Figure 10 A show the exploded view of Traffic selector component and related needle-valve 1160,1161,1162.As illustrated, pin
The operating side knob of valve module mainly by needle-valve knob protective cover (or claim knob sheath) 1140, Traffic selector (i.e. needle valve rotary
Button) 1110,1120,1130, knob bearing 1230 (see Figure 11 A), knob support base 1150 and valve rod of needle valve 1160,
1161st, 1162 it is assembled.Knob sheath 1140 surrounds and protects Traffic selector (knob) 1110,1120,1130, prevents it
Axially-movable.Knob support base 1150 allows each while preventing Traffic selector 1110,1120,1130 from moving axially
The valve rod 1160,1161,1162 of needle-valve is moved axially.
Figure 10 B show the exploded view of Traffic selector component, wherein Traffic selector 1110,1120,1130, knob shield
Set 1140 and knob support base 1150 are fitted together.The valve rod and Traffic selector 1110 of needle-valve 1160,1161,1162,
1120th, 1130 rotation engagement.Rotary current selector 1110,1120,1130 moves axially can valve rod, such that it is able to increasing or
Reduce fluid flow.As illustrated, during assembling needle valve assembly, fully relying on valve rod of needle valve 1160,1161,1162 and knob
The cooperation of bearing is positioning.Dependency structure may be referred to Figure 12 and Figure 13.
Figure 10 C show the Traffic selector component for assembling, including knob sheath 1140, Traffic selector 1110,
1120th, 1130 and knob support base 1150.
Figure 11 A show the mistake that Traffic selector 1210 is engaged by holding screw 1215 with knob bearing 1230
Journey.As illustrated, during assembling, it is necessary first to which needle-valve knob 1210 and knob bearing 1230 are fixed to into one piece.Adopt herein
With holding screw 1215 pairs, both carry out radially fixed, and then realize both circumferences and being rigidly connected for axial direction；
That is, by tightening holding screw 1215, Traffic selector 1210 is engaged with the rotation of knob bearing 1230.In some realities
In applying mode, knob bearing 1230 includes plane, slit, and/or the hole for accommodating holding screw 1215.Diagram is implemented
Mode eliminates general clamping matching institute inevitably fit-up gap, it is to avoid operation idle stroke that gap band comes is sent out
It is raw.
Figure 11 B show cuing open for the Traffic selector 1210 for assembling, knob bearing 1230 and holding screw 1215
View.In some embodiments, Traffic selector 1210 and knob bearing 1230 are (due to the work of holding screw 1215
With) keep rotation engagement, and axial translation freely of each other.In other embodiments, Traffic selector 1210 and knob turn
Dynamic bearing (due to effect of holding screw 1215) keeps rotation engagement, and axial restraint each other, i.e., axially without movement.As schemed
Shown in 11B, the needle-valve knob 1210 for assembling and knob bearing 1230 are assembled to into needle-valve knob protective cover 1240 and rotation
Between button support base 1250.Three is positioned by axis hole, and eventually through needle-valve knob protective cover 1240 and knob support base
1250 be fixedly connected, needle-valve knob 1210 is limited therebetween.This guarantees needle-valve knob 1210 operation when
Wait, can only rotate in existing rigging position, and axial movement cannot be produced.Meanwhile, knob bearing 1230 employs profit
Sliding high-abrasive material, reduces in rotary course itself and needle-valve knob protective cover 1240 and the frictional resistance of knob support base 1250,
Optimize the operating experience of client.
Figure 12 shows the structure of valve rod, while including for ensureing that valve rod 1300 is moved axially also and Traffic selector
The flat bit architecture 1320 of rotation engagement.Valve rod may also include the axle category feature 1310 for coordinating Traffic selector and for controlling
The helicitic texture 1330 of fluid flow.
Figure 13 is shown for engaging and keeping the rotation freely moved axially relative to Traffic selector with valve rod rotation
Button rolling bearing 1400.Knob bearing 1400 may include hole category feature 1420 and it is non-circular (for example polygon, ellipse,
And/or annular projection or bond formed portion) waist-shaped hole feature 1410, to ensure that knob bearing connects with valve rod rotation
Close.
As shown in Figures 12 and 13, the fore-end of valve rod of needle valve 1300 include axle category feature 1310, flat bit architecture 1320 with
And helicitic texture 1330.Knob bearing 1400 is then comprising hole category feature 1420 and waist-shaped hole feature 1410.Wherein, feature
1310 and 1420 shaft hole matching can ensure that the alignment degree of valve rod of needle valve 1300 and knob bearing 1400, prevent eccentric band
The feel come is inconsistent or even the excessive problem of operating physical force occurs.And feature 1320 and 1410 ensure that knob bearing
1400 and the synchronous rotary of valve rod of needle valve 1300.Spinning movement during operation is then converted into valve rod of needle valve by helicitic texture 1330
1300 synchronous rotary and axial movement.The axial movement directly decides the size of needle valve assembly valve port opening, and knob
The lubricating and wear-resisting material behavior of rolling bearing 1400, effectively reduces its frictional resistance with the relative motion of valve rod of needle valve 1300.
When the application ensure that needle-valve knob of the client on whole machine side plate is operated, knob on the premise of not moving axially,
Regulation reliably can be synchronized to pin valve opening, and then realizes the real-time control to whole machine flow.Overall appearance is with reference to figure
11A。
Figure 14 A show the viewgraph of cross-section of Traffic selector component 1500, and wherein position detector 1550 confirms pin
The valve rod 1583 of valve 1560 is in initial state.As illustrated, position detector 1550 includes detection switch, for engaging axial direction
The protrusion of floating bush 1555 or the position detector 1550 of bossing 1557.Axial floating bush 1555 is with valve rod 1583
Move axially together, but do not rotate with the rotation of valve rod 1583.In other embodiments, bushing can be with valve rod 1583
Rotation and movement.Only when detection switch is contacted with the protrusion 1557 of axial floating bush, ability trigger position detector
1550。
Valve rod 1583 is engaged with the cavity 1593 of Traffic selector 1520.As it was previously stated, valve rod 1583 can be in cavity
1583 interior freely axial translations, while also keeping being engaged with cavity rotation.Cavity and/or valve rod can be any non-circular
Shape, such as square, hexagon, or annular ridges/intrusion portion.
Position detector 1550 and position indicator (bossing 1557 of axial floating bush 1555) may be configured as making
Obtain position detector 1550 and detect valve rod 1583 to fully open, completely closing, and/or in initial state.Initial state
Can be preset flow or flow threshold.According to some embodiments, can adjust mechanical type needle-valve 1560 to obtain without gas stream
Any flow between dynamic completely closed state and the full open position of gas maximum flow.In some embodiments, when
When Traffic selector 1520 is retracted, needle-valve 1560 enters initial state.
Figure 14 A show the Traffic selector 1510 and 1520 in retracted mode and (flow in fully closed position
Measure as needle-valve 1,560 0).In fully closed position when, the protrusion 1557 of the axial floating bush 1555 of valve rod 1583 can
Position detector 1550 is set to detect that needle-valve 1560 is in fully closed position.
Figure 14 B show the Traffic selector 1520 in ejection state.Needle-valve 1560 is swelled still in completely closing
Portion 1557 engages with position detector 1550.Correspondingly, position detector 1550 detects that needle-valve 1560 is zero in flow
Fully closed position.As it was previously stated, in a kind of alternate embodiments, protrusion 1557 and/or position detector 1550 can set
Being set to can make position detector 1550 determine that valve rod 1583 is in a fully open position, the position of target flow, and/or is in
In the range of flow specified.
In some embodiments, axial floating bush may include the protrusion with differing heights and/or depth and/or
Intrusion portion.Position detector can detect one or more flow and/or one or more stem positions.
Figure 14 C show the Traffic selector 1520 in ejection state and other the part portions relative to needle-valve 1560
Divide the valve rod 1583 opened.As illustrated, position detector 1550 departs from protrusion 1557.Therefore, position detector 1550 can
Determine that needle-valve is not in the completely closed state that flow is zero.
Figure 14 D show the Traffic selector 1520 in ejection state and are fully moved toward the valve of Traffic selector 1520
Bar 1583.As illustrated, position detector 1550 departs from the protrusion 1557 of axial floating bush 1555.
It has been observed that when flow-control selector 1520 is retracted, one or more needle-valves in flow-control needle valve assembly
Return initial state rather than completely closed state.In this embodiment, when flow-control selector 1520 is retracted, use
Three-way valve (or other switching valve equipment) is flow through with preventing any gas for currently just flowing.Therefore, when ejecting Traffic selector,
To allow to be flowed with the gas of the initial state respective numbers of needle-valve automatically.For example, initial state is 2 liters/min of oxygen, laughing gas
And/or the flow of 0 liter/min of air.Every kind of available gas can have different possible initial state flows.
Figure 15 A- Figure 15 B show Traffic selector component 1600 and position detector (detection switch 1671,1672,
1673) another view, position detector is used to selectively detect the relative position of valve rod 1691,1692 and 1693.With reference to
Description to Figure 14 A-14D, position detector 1671,1672,1673 be used to detecting its whether with groove 1661,1662,1663
Protrusion (such as protrusion 1663) engagement, groove 1661,1662,1663 be located at bushing 1665,1666,1667 on.
In illustrated embodiment, needle-valve 1651 and 1652 is completely closed, and valve rod 1691 and 1692 is entirely facing needle-valve
1651 and 1652 translations.Therefore, position detector 1671 and 1672 is engaged with protrusion (not shown), and detects needle-valve
1651 and 1652 is to completely close.Valve rod 1693 is entirely facing Traffic selector 1630 and translates so that needle-valve 1653 is fully opened.
Because position detector 1673 is not engaged with jut 1663, so as to detect that needle-valve 1653 is not completely turned off.
Figure 15 A also show the possibility shape of the valve rod of three kinds of embodiments.First valve rod 1693 is hexagon, for stream
The hexagon cavity 1683 of amount selector 1630 is engaged.Second valve rod 1692 is rectangle, for the square with Traffic selector 1620
Shape cavity 1682 is engaged.3rd valve rod 1693 is for circle and with the circle of two protrusions, protrusion and Traffic selector 1610
Corresponding inclusion engagement in shape cavity 1682.According to some embodiments, cavity 1681,1682,1683 rotatable engagement valves
Bar 1691,1692,1693, and valve rod 1691,1692,1693 is made relative to Traffic selector 1610,1620, the 1630 free earth's axis
To movement.In some embodiments, knob sheath 1640 is used to prevent Traffic selector 1610,1620,1630 from moving axially.
Figure 15 B are the top exploded view of Traffic selector component 1601, show Traffic selector 1610,1620,1630
The engagement cavity 1681,1682,1683 being provided with and its three kinds of possible embodiments of corresponding valve rod 1691,1692,1693.Connect
It can be any non-circular shape to close chamber and/or valve rod, as long as still can the free earth's axis while making valve rod holding rotation engagement
To movement.For example, engagement cavity and valve rod may include N number of equal or different both sides, and N is integer, non-circular curved surface, ring uplift
Portion, and/or any other shape, these shapes are so that valve rod can the free earth's axis while keeping being engaged with Traffic selector rotation
To movement.
Operating side knob disclosed in the present application is only rotated and in the needle-valve operation end structure without axial movement, eliminated
Operating side knob is rigidly connected with valve rod of needle valve, remains both circumferential constraints, increased axial degree of freedom.And lead to
The use of lubriation material is crossed, the cooperation operating mode of axial kinematic pair between operating side knob and valve rod of needle valve is greatly improved.
The application is guaranteeing that reliable control of the operating side knob to valve rod of needle valve is outer, and eliminating origin operation end knob must axle
To mobile work characteristics, it is ensured that the outward appearance of whole machine is not destroyed, the man-machine interaction of whole machine is effectively improved, improve whole machine
The market orientation height of anesthetic machine.
On the basis of each embodiment of the application, following Arbitrary Term deformation can be carried out：
1st, the quantity for increasing or decreasing holding screw or the position for changing holding screw；
2nd, the version of correlated parts is only changed, but still remains knob bearing and needle-valve knob protective cover and rotation
Rigging position relation between button support base；
3rd, only change the size of axis hole or waist-shaped hole, but still remain guarantee alignment degree disclosed in the present application and
The version of synchronous rotary.
According to any embodiment described herein, gas flow system can be used for many occasions.Illustrate each reality
In applying mode, gas Flowrate Control System is illustrated as a part for anesthetic gaseses induction system.In these embodiments, one
The combination gas stream injection of road or multipath gas is such as input into anesthetis with other infusions by vaporizer, then to anesthesia
Agent and/or one or more gas are transported to the process of patient end and are controlled.
The application is achieved by each embodiment including preferred forms.However, those skilled in the art will recognize
Know, in the case of without departing from scope disclosed in the present application, can make changes and modifications.Although each embodiment has shown that
The principle of the application, but, to be suitable to specific environment and/or operational requirements, in the principle without departing from the application and the feelings of scope
Under condition, can many modifications may be made to the structure of the application, layout, ratio, parts part, material and component etc..The application's
Scope covers the NM of these and other and is altered or modified.
Aforementioned specification has been described for various embodiments.However, it will be understood by one of ordinary skill in the art that, can be not
Various modifications and changes may be made under disengaging the application scope.Therefore, the application be construed as it is illustrative and not restrictive,
And scope of the present application covers all such modifications.Similarly, the beneficial effect of each embodiment, further advantage and problem
Solution above having been described.But, these beneficial effects, advantage or the solution for being adopted or the scheme for highlighting
Should not be construed as being important, required or necessary feature or feature.It is thus impossible to assert that the application's is embodied as an office
It is limited to these explanations.
Claims (24)
1. a kind of valve module for controlling fluid flow, it is characterised in that include：
The valve shell of runner is determined, for allowing fluid from input stream to outfan；
With for determining the first end of axis and the valve rod of the second end, the rotation of the valve rod causes valve rod in the stream
Move axially in road, the fluid flow from input stream to outfan is controlled with this；
Relative to the turnable Traffic selector of fixed position of the valve shell in axial direction；With
The engagement cavity of turnable Traffic selector, for accommodating the first end of the valve rod so that valve rod is with the turnable
The rotation of Traffic selector and rotate；
Wherein described valve rod keeps and the rotation of turnable Traffic selector while the engagement intracavity is freely moved axially
Engagement.
2. valve module as claimed in claim 1, it is characterised in that the engagement cavity is the not rounded surrounded by one or more walls
Shape.
3. valve module as claimed in claim 2, it is characterised in that the engagement cavity is the n sides polygon surrounded by multiple walls,
Wherein, n is the integer more than 2.
4. valve module as claimed in claim 2, it is characterised in that the engagement cavity is the non-circular ellipse surrounded by wall
Shape.
5. valve module as claimed in claim 1, it is characterised in that the engagement cavity is the annular with bond formed portion, is used for
Bond formed portion corresponding with the valve rod is engaged, so that valve rod rotates with the rotation of turnable Traffic selector.
6. valve module as claimed in claim 1, it is characterised in that also include：
To the valve rod relative to the related position indicator of the axial displacement of the runner；With
The position detector being connected with the position indicator, for detect the valve rod move axially to make from input to
The fluid flow of outfan is the position of flow threshold.
7. a kind of valve module for controlling fluid flow, it is characterised in that include：
The valve shell of runner is determined, for allowing fluid from input stream to outfan；
With for determining the first end of axis and the valve rod of the second end, the rotation of the valve rod causes valve rod in the stream
Move axially in road, the fluid flow from input stream to outfan is controlled with this；
The Traffic selector being connected with the valve rod, the valve rod rotates with the rotation of Traffic selector；
To the valve rod relative to the related position indicator of the axial displacement of runner；With
The position detector being connected with the position indicator, for detect the valve rod move axially to make from input to
The fluid flow of outfan is flow threshold.
8. valve module as claimed in claim 7, it is characterised in that the position indicator includes that the position on the valve rod refers to
Show protrusion, and the position detector includes position switch, when valve rod is moved axially, is swelled by the position instruction
Portion triggers the position switch, so that the fluid flow from input to outfan is the flow threshold；
Or, the position indicator includes the position instruction chamber being located on the valve rod；The position detector includes position
Switch, when valve rod is moved axially, triggers the position switch, so that from input to outfan by the position instruction chamber
Fluid flow be the flow threshold.
9. valve module as claimed in claim 8, it is characterised in that the position instruction protrusion or the position instruction chamber set
On the axial floating bush of the valve rod.
10. valve module as claimed in claim 7, it is characterised in that the flow threshold is the minimum of medically desired gas
Safe traffic, so as to the fluid flow from input to outfan is the minimum safe flow of medically desired gas；Or
Person, the flow threshold is 0, so as to the fluid flow from input to outfan is 0.
11. valve modules as claimed in claim 10, it is characterised in that the medically desired gas be oxygen, the minimum
Safe traffic is between 1 liter/min and 2 liters/min.
12. valve modules as claimed in claim 7, it is characterised in that the valve shell, runner and valve rod are mechanical operation pin
A part for valve；
The Traffic selector includes rotary knob, and the valve rod that rotarily drives of the rotary knob rotates.
13. valve modules as claimed in claim 7, it is characterised in that the Traffic selector includes turnable Traffic selector,
The valve module also includes the engagement cavity of the turnable Traffic selector, for accommodating the first end of the valve rod；
The turnable Traffic selector keeps the fixed position in axial direction relative to the valve shell；And the valve rod exists
While the engagement intracavity is freely moved axially, holding is engaged with the engagement cavity.
A kind of 14. methods for fluid flow in control valve group part, it is characterised in that include：
Determine the runner of valve shell to allow fluid from input stream to outfan；
Valve rod is rotationally fixed in the runner so that the first end for rotarily driving the valve rod of the valve rod exists
Move in the runner, the fluid flow from input stream to outfan is controlled with this；With
The second end of valve rod is rotationally fixed to into the engagement intracavity of Traffic selector so that the valve rod is in engagement intracavity
While freely axial movement, engage with Traffic selector rotation.
15. methods as claimed in claim 14, it is characterised in that the engagement cavity is the n sides polygon surrounded by multiple walls,
Wherein, n is the integer more than 2；
Or, the engagement cavity is the non-circular ellipticity surrounded by wall；
Or, the engagement cavity is the annular with bond formed portion, is engaged for bond formed portion corresponding with the valve rod,
So that valve rod rotates with the rotation of Traffic selector.
16. methods as claimed in claim 14, it is characterised in that the valve module is used for anesthetic gaseses induction system.
17. methods as claimed in claim 14, it is characterised in that also include：
Relative position of the valve rod relative to the runner is indicated by position indicator；And
Detecting that the valve rod is moved axially to by position detector makes the fluid flow from input to outfan be
Flow threshold.
A kind of 18. methods for fluid flow in control valve group part, it is characterised in that include：
Determine the runner of valve shell to allow fluid from input stream to outfan；
Valve rod is rotationally fixed in the runner so that the first end for rotarily driving the valve rod of the valve rod exists
Move in the runner, the fluid flow from input stream to outfan is controlled with this；
The second end of valve rod is rotationally fixed to into the engagement intracavity of Traffic selector；
Relative position of the valve rod relative to the runner is indicated by position indicator；And
Detecting that the valve rod is moved axially to by position detector makes the fluid flow from input to outfan be
Flow threshold.
19. methods as claimed in claim 18, it is characterised in that the position indicator includes that the position on the valve rod refers to
Show protrusion, and the position detector includes position switch, when valve rod is moved axially, is swelled by the position instruction
Portion triggers the position switch, so that the fluid flow from input to outfan is the flow threshold；
Or, the position indicator includes the position instruction chamber being located on the valve rod；And the position detector includes
Position switch, when valve rod is moved axially, by the position instruction chamber position switch is triggered, so that from input to defeated
The fluid flow for going out end is the flow threshold.
20. methods as claimed in claim 19, it is characterised in that the position instruction protrusion or the position instruction chamber set
On the axial floating bush of the valve rod.
21. methods as claimed in claim 18, it is characterised in that the flow threshold is the minimum peace of medically desired gas
Full flow, so as to the fluid flow from input to outfan is the minimum safe flow of medically desired gas；Or
Person, the flow threshold is 0, so as to the fluid flow from input to outfan is 0.
22. methods as claimed in claim 21, it is characterised in that the medically desired gas are oxygen, the minimum peace
Full flow is between 1 liter/min and 2 liters/min.
23. methods as claimed in claim 18, it is characterised in that the valve shell, runner and valve rod are mechanical operation pin
A part for valve.
24. methods as claimed in claim 18, it is characterised in that the Traffic selector relative to the valve shell holding at
In the fixed position of axial direction；And
While the engagement intracavity is freely moved axially, holding is engaged the valve rod with the engagement cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453797.1A CN103800984B (en) | 2012-11-13 | 2012-11-13 | Valve module for controlling fluid flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453797.1A CN103800984B (en) | 2012-11-13 | 2012-11-13 | Valve module for controlling fluid flow |
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| Publication Number | Publication Date |
|---|---|
| CN103800984A CN103800984A (en) | 2014-05-21 |
| CN103800984B true CN103800984B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210453797.1A Active CN103800984B (en) | 2012-11-13 | 2012-11-13 | Valve module for controlling fluid flow |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103800983B (en) * | 2012-11-13 | 2017-04-19 | 深圳迈瑞生物医疗电子股份有限公司 | Valve assembly for controlling fluid flow |
| CN106902432A (en) * | 2015-12-23 | 2017-06-30 | 北京谊安医疗系统股份有限公司 | A kind of safe oxygen device and its control method |
| EP4085956A4 (en) * | 2019-12-30 | 2023-01-11 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd | Backup flow control system and method applicable to anesthesia machine |
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| US3367365A (en) * | 1966-05-25 | 1968-02-06 | Orbit Valve Co | Valve |
| FR1535648A (en) * | 1967-06-21 | 1968-08-09 | Applic Gaz Sa | Needle valve refinements |
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| US4698998A (en) * | 1986-07-22 | 1987-10-13 | Consolidated Controls Corporation | Pressure calibration systems and control valve assemblies |
| DE3803356A1 (en) * | 1988-02-05 | 1989-08-17 | Bauknecht Hausgeraete | CONTROL KNOB FOR CONTROL UNITS OR THE LIKE |
| JP2873929B2 (en) * | 1996-02-09 | 1999-03-24 | 俊治 安藤 | Flow control valve for anesthesia machine |
| SE519054C2 (en) * | 2001-05-10 | 2003-01-07 | Aneo Ab | Needle valve related arrangement |
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| US20100084029A1 (en) * | 2008-10-08 | 2010-04-08 | Chun Lin | Apparatus to determine a position of a valve |
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| CN103800983B (en) * | 2012-11-13 | 2017-04-19 | 深圳迈瑞生物医疗电子股份有限公司 | Valve assembly for controlling fluid flow |
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| CN201271423Y (en) * | 2008-09-25 | 2009-07-15 | 常州东方铁路器材有限公司 | Glass rotameter oxygen and laughing gas linked regulation valve for anesthesia apparatus |
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| CN103800984A (en) | 2014-05-21 |
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