CN106902427B - A kind of electronic flowmeter and the gas path control method using the electronic flowmeter - Google Patents
A kind of electronic flowmeter and the gas path control method using the electronic flowmeter Download PDFInfo
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- CN106902427B CN106902427B CN201510977691.5A CN201510977691A CN106902427B CN 106902427 B CN106902427 B CN 106902427B CN 201510977691 A CN201510977691 A CN 201510977691A CN 106902427 B CN106902427 B CN 106902427B
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- valve
- electronic flowmeter
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
- A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
- A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
- A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
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- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Volume Flow (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a kind of electronic flowmeter and using the gas path control method of the electronic flowmeter, the electronic flowmeter includes that several flows being fixed in side by side on outlet fixed block adjust control assembly；Mixed-gas channel is set in the outlet fixed block, safety valve is set in the mixed-gas channel one end, force samples mouth is arranged in the other end；It includes valve fixed block and flow sensor that several flows, which adjust any one flow in control assembly and adjust control assembly, and solenoid valve and proportioning valve is arranged on the valve fixed block；Described flow sensor one end is fixed on valve fixed block, and the other end is fixed on outlet fixed block, the gas passage connection between the solenoid valve, proportioning valve and flow sensor by being arranged in valve fixed block；The flow sensor also passes through the gas passage set in outlet fixed block and is connected with mixed-gas channel.Electronic flowmeter of the present invention is connected using no pipeization, and gas path layout is brief.
Description
Technical field
The invention belongs to Anesthesia machine technical field, in particular it relates to a kind of electronic flowmeter and use the electronics
The gas path control method of flowmeter.
Background technique
Flowmeter is the important component part of anaesthesia workstation.Operator is by the operation of flowmeter, to anaesthesia workstation
In live gas controlled.At present on anaesthesia workstation the use of more flowmeter is still mechanical flowmeter.Machine
Tool formula flowmeter gas controls precision and gas parameter monitoring precision is not so good as electronic flowmeter.And it is adjusted to live gas
When section, it is difficult accurately to accomplish that three kinds of oxygen, laughing gas, air gases match output, and mechanical flowmeter with arbitrary proportion
It needs manually to be calculated during the adjustment, and rule of thumb carrys out turn flowmeter knob and be adjusted, gas regulation is inadequate
Rapidly and accurately.Simultaneously because display methods of the mechanical flowmeter using glass tube and float combination, medical staff needs
Position where comparing float is adjusted to obtain information；Information feedback is not intuitive, increases the operation of medical staff
Difficulty and there is the probability of faulty operation.Electronigraph flowmeter shows flow parameter in a manner of electronic digital pipe, controls gas side
Formula is still mechanical control gas, and it is more stiff to show, while charactron rapid wear.
Therefore it in order to which accurately the live gas of output is adjusted to medical staff is more convenient, and provides more accurate
Flow information, while intuitively medical staff being made to obtain these information, the present invention devises a kind of electronic flowmeter, greatly mentions
The overall performance for having risen anaesthesia workstation reduces the working strength of medical staff.
Summary of the invention
The object of the present invention is to provide a kind of electronic flowmeter, which is connected using no pipeization, gas path layout's letter
About, it is sampled using electronic flowmeter, measurement accuracy is high, and using proportioning valve, solenoid valve adjusts flow and controls, and flow control is quasi-
Really, flow control operation can be completed on a touch-screen display, which greatly improves the overall performance of anaesthesia workstation, subtract
The working strength of few medical staff.
In order to achieve the above objectives, present invention employs the following technical solutions:
A kind of electronic flowmeter, the electronic flowmeter include several flow tune being fixed in side by side on outlet fixed block 6
Save control assembly；Mixed-gas channel is set in the outlet fixed block 6, safety valve 1 is set in the mixed-gas channel one end, separately
Force samples mouth 7 is arranged in one end；
It includes valve fixed block 3 and flow that several flows, which adjust any one flow in control assembly and adjust control assembly,
Solenoid valve 4 and proportioning valve 2 are arranged on the valve fixed block 3 for sensor 5；Described 5 one end of flow sensor is fixed on valve fixed block
On 3, the other end is fixed on outlet fixed block 6, is fixed between the solenoid valve 4, proportioning valve 2 and flow sensor 5 by valve
The gas passage connection being arranged in block 3；Gas passage and gaseous mixture of the flow sensor 5 also by being set in outlet fixed block
Body channel is connected.
Preferably, it is three that the flow, which adjusts the number of control assembly, is respectively used to adjust oxygen, laughing gas and air
Flow.
Preferably, the outlet fixed block 6 is cuboid.Those skilled in the art can also select other as needed
Shape, as long as shape satisfaction is easily installed when combining installation and aggregation degree is high.
Preferably, the valve fixed block 3 is cuboid.Those skilled in the art can also select other shapes as needed
Shape, as long as shape satisfaction is easily installed when combining installation and aggregation degree is high.
Based on the gas path control method of above-mentioned electronic flowmeter, the described method comprises the following steps:
1) solenoid valve 4 that several flows adjust that a flow in control assembly is adjusted in control assembly is opened, all the way gas
After body passes through solenoid valve 4, proportioning valve 2 is reached, control proportioning valve 2 arbitrarily matches the flow of the road gas, and gas is through overcurrent later
Quantity sensor 5, flow sensor 5 are shown on display screen flow information collection, and gas enters after flow sensor 5
Export fixed block 6；
2) control assembly is adjusted using remaining flow using the identical method with step 1) to carry out the gas on remaining road
Flow is adjusted；
3) gas after overregulating is mixed in the mixed-gas channel of outlet fixed block 6, while being adopted in pressure
Sample mouth carries out sampling monitoring to the pressure of mixed gas, and safety valve 1 is for controlling gas pressure.
Electronic flowmeter of the invention is built in anaesthesia workstation body, relative to mechanical flowmeter, and needs list
The electronigraph flowmeter for pipe solely shown, structural volume of the invention is small and exquisite, the space very little of the work station of occupancy.Gas flow
Control is completed by proportioning valve, and gas with various is enable to match mixing output with any flow proportional, and gas control is made to become convenient, quasi-
Really.Flow information acquisition simultaneously uses flow sensor, and the feedback of flow information is more accurate.Information collected and to flow
The operation of meter all concentrates on touch display screen curtain, facilitates record and the operation of medical staff.Accomplish accurate live gas stream
Amount and oxygen concentration control monitoring, the electronics of Millisecond samples and durable control valve precision, screen virtual flowtube are shown, safety
Realize low flow anesthesia and minimum flow anesthesia.
Each component part and structure of electronic flowmeter of the present invention are arranged, as shown in Figure 1, proportioning valve and electricity in the present invention
Magnet valve is mounted on valve fixed block, and valve fixed block is connected with electronic flow flowmeter sensor.Three electronic flow flowmeter sensors are arranged side by side
It is fixed on outlet fixed block, and arranges safety valve on total gaseous mixture road, to prevent airline pressure excessively high.
Gas circuit principle of the invention is as shown in Fig. 2, solenoid valve is opened, and after gas passes through solenoid valve, arrival proportioning valve is operated
Person can be by controlling proportioning valve, and any flow for matching gas, gas passes through flow sensor, flow sensor convection current later
Information collection is measured, is shown on display screen, laughing gas enters on flowmeter outlet fixed block later.Gas after through overregulating exists
This is mixed, while pressure monitoring end carries out sampling monitoring to the pressure of mixed gas, and safety valve controls gas pressure.
The installation method of electronic flowmeter of the present invention:
When assembly, two screws of solenoid valve 4 are fixed on valve fixed block 3, then assembled proportioning valve 2 with two screws
On valve fixed block 3, the valve fixed block assembled is fixed on flow sensor 5 with four screws later, composition one
The flow of road gas adjusts control assembly.After completing this three groups of flows and adjusting control assembly, the flow of three road gas is adjusted into control
Component processed is fixed on outlet fixed block 6, then installs force samples mouth 7 at outlet fixed block, is exported in mixed gas gas circuit
Place's installation safety valve 1, to ensure that gas pressure is stablized.
Assembled electronic flowmeter is installed in safe oxygen device fixed plate later, finally connects electric elements
Connecting line and signal wire.During installation, it is to be installed step by step from component to component, does not overturn sequence, be surveyed after being installed
Try electronic flowmeter using effect.
Manual adjustment flow, control flow and the process simplification for obtaining flow information are changed into and utilize high property by the present invention
Energy proportioning valve and sensor are to flow information real-time monitoring, control and feedback.Flow control is changed to use proportioning valve by manual adjustment
Control, control precision is more rapid accurate, and gas flow can be matched with arbitrary proportion, and the adjustable range of flowmeter is made to increase greatly
Add.
The present invention devises outlet fixed block, and structure is as shown in figure 3, the flow adjusting control assembly of the road Shi Ge gas can
It is fixed together, does not need individually to open mounting hole on body.It simultaneously exports and opens gas passage in fixed block, make to be overregulated
Gas can be mixed adequately herein.Pressure reducing valve is installed on outlet fixed block simultaneously and force samples mouth, electronic flowmeter go out
The design of mouth fixed block reduces gas channels length, makes pressure information acquisition and pressure control can be in same section of gas circuit
Completion improves the integrated level of electronic flowmeter.
The present invention devises valve fixed block, and structure is as shown in Figure 4.Gas passage is processed with reasonable arrange, while
The installation hole location of solenoid valve and proportioning valve is processed thereon.The design use of valve fixed block realizes no pipe connection, simplifies gas
Road saves cost, reduces structural volume.
The display and operation of flow information of the invention concentrate in touch display screen, provide arcotic type and minimum lung
It steeps effective concentration (MAC) value to prompt, in information display set, reads information intuitive and convenient.
Electronic flowmeter of the invention uses the design of efficient man-machine interactive, the design of air circuit connection component structure, gas
The layout in channel.Using high-precision and highly sensitive flow sensor, proportioning valve and solenoid valve, structure such as Fig. 5,6,7 institute
Show, make to greatly improve the precision that controls and monitors of gas, the analog stream buret intuitive display of electronic flowmeter is accurate, succinct big
Side, being capable of real-time display arcotic type and minimum alveolar concentration (MAC) value.The present invention only opens in fixed connecting part
If gas channels, gas channels layout is brief between valve and sensor.The autonomous Design connector of component is regarding connector
While play the role of gas path pipe, realize between each component without pipe connect so that electronic flow topology layout collection
Cheng Du is very high, saves space in machine, reduces costs.
The layout of thought according to the present invention, electronic flowmeter can be integrated further, such as can be by solenoid valve and ratio
Valve is integrated, is made into inserted valve, or have reached same function using high-performance proportion magnetic valve, while reducing structural volume；Such as
Resume module is carried out, when use need to only attach the module on body.It simultaneously can be by the used flow sensing of this system
Device replaces with other kinds of flow sensor as the case may be, to guarantee the steady use of electronic flowmeter.
The present invention can apply in the anaesthesia workstation for needing flow monitoring, this electronic flowmeter is readily applicable to
In other instruments for needing flow monitoring and flow information to acquire, such as ventilator, in monitor.By adaptability reform,
Also it can be applied to the field of other design gas flow sampling monitorings.
Solenoid valve and proportioning valve of the present invention can be used as inserted valve, while reducing material variety, reach identical precisely fast
The purpose of speed control gas flow.Settable multi-point monitoring device simultaneously, enables the range of flow monitoring and adjusting to become much larger.
Furthermore temperature sensing-controlling device can be added, constant temperature processing is carried out to the temperature of measured gas, guarantee mixed gas density and
Concentration is steadily constant, keeps sensor measurement more accurate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electronic flowmeter of the present invention；
Fig. 2 is schematic diagram of gas circuit of the invention；
Fig. 3 is the structural schematic diagram of present invention outlet fixed block；
Fig. 4 is the structural schematic diagram of valve fixed block of the present invention；
Fig. 5 is the structural schematic diagram of inventive flow sensor；
Fig. 6 is the structural schematic diagram of proportioning valve of the present invention；
Fig. 7 is the structural schematic diagram of solenoid valve of the present invention；
Appended drawing reference；1, safety valve；2, proportioning valve；3, valve fixed block；4, solenoid valve；5, flow sensor；6, outlet is solid
Determine block；7, force samples mouth.
Specific embodiment
With the drawings and specific embodiments, the present invention is described in further detail below.
As shown in Figure 1, a kind of electronic flowmeter, the electronic flowmeter includes being fixed in side by side on outlet fixed block 6
Several flows adjust control assembly；Mixed-gas channel is set in the outlet fixed block 6, is arranged in the mixed-gas channel one end
Force samples mouth 7 is arranged in safety valve 1, the other end；
It includes valve fixed block 3 and flow that several flows, which adjust any one flow in control assembly and adjust control assembly,
Solenoid valve 4 and proportioning valve 2 are arranged on the valve fixed block 3 for sensor 5；Described 5 one end of flow sensor is fixed on valve fixed block
On 3, the other end is fixed on outlet fixed block 6, is fixed between the solenoid valve 4, proportioning valve 2 and flow sensor 5 by valve
The gas passage connection being arranged in block 3；Gas passage and gaseous mixture of the flow sensor 5 also by being set in outlet fixed block
Body channel is connected.
The number that the flow adjusts control assembly is three.The outlet fixed block 6 is cuboid.The valve is fixed
Block 3 is cuboid.
Based on the gas path control method of above-mentioned electronic flowmeter, the described method comprises the following steps:
1) solenoid valve 4 that several flows adjust that a flow in control assembly is adjusted in control assembly is opened, all the way gas
After body passes through solenoid valve 4, proportioning valve 2 is reached, control proportioning valve 2 arbitrarily matches the flow of the road gas, and gas is through overcurrent later
Quantity sensor 5, flow sensor 5 are shown on display screen flow information collection, and gas enters after flow sensor 5
Export fixed block 6；
2) control assembly is adjusted using remaining flow using the identical method with step 1) to carry out the gas on remaining road
Flow is adjusted；
3) gas after overregulating is mixed in the mixed-gas channel of outlet fixed block 6, while being adopted in pressure
Sample mouth carries out sampling monitoring to the pressure of mixed gas, and safety valve 1 is for controlling gas pressure.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, it will be apparent to an ordinarily skilled person in the art that technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (9)
1. a kind of electronic flowmeter, which is characterized in that the electronic flowmeter includes being fixed in side by side in outlet fixed block (6)
Several flows adjust control assembly；Mixed-gas channel is set in the outlet fixed block (6), is set in the mixed-gas channel one end
It sets safety valve (1), force samples mouth (7) are arranged in the other end；
It includes that valve fixed block (3) and flow pass that several flows, which adjust any one flow in control assembly and adjust control assembly,
Solenoid valve (4) and proportioning valve (2) are arranged on the valve fixed block (3) for sensor (5)；Described flow sensor (5) one end is fixed on
On valve fixed block (3), the other end is fixed in outlet fixed block (6), the solenoid valve (4), proportioning valve (2) and flow sensor
(5) the gas passage connection between by being arranged in valve fixed block (3)；The flow sensor (5) also passes through outlet fixed block
The gas passage inside set is connected with mixed-gas channel.
2. a kind of electronic flowmeter according to claim 1, which is characterized in that the electronic flowmeter further includes multiple spot prison
Device is controlled, for flow monitoring and is adjusted.
3. a kind of electronic flowmeter according to claim 1, which is characterized in that the electronic flowmeter further includes temperature sense
Device is controlled, carries out constant temperature processing for the temperature to measured gas.
4. a kind of electronic flowmeter according to claim 1-3, which is characterized in that the flow adjusts control group
The number of part is three, is respectively used to adjust the flow of oxygen, laughing gas and air；
The outlet fixed block (6) and valve fixed block (3) are cuboid.
5. a kind of electronic flowmeter according to claim 1-3, which is characterized in that add on valve fixed block (3)
Work goes out the installation hole location of solenoid valve and proportioning valve.
6. a kind of electronic flowmeter according to claim 1-3, which is characterized in that the proportioning valve is used for gas
Flow control.
7. a kind of electronic flowmeter according to claim 1-3, which is characterized in that the flow sensor is used for
Flow information acquisition.
8. a kind of electronic flowmeter according to claim 1-3, which is characterized in that the electronic flowmeter application
In the instrument for needing flow monitoring and flow information to acquire.
9. the described method comprises the following steps based on the gas path control method of electronic flowmeter described in claim 1:
1) solenoid valve (4) that several flows adjust that a flow in control assembly is adjusted in control assembly is opened, all the way gas
It after solenoid valve (4), reaches proportioning valve (2), control proportioning valve (2) arbitrarily matches the flow of the road gas, and gas passes through later
Overcurrent quantity sensor (5), flow sensor (5) are shown on display screen flow information collection, and gas passes through flow sensor
(5) laggard inlet/outlet fixed block (6)；
2) control assembly is adjusted using remaining flow using the identical method with step 1) and flow is carried out to the gas on remaining road
It adjusts；
3) gas after overregulating is mixed in the mixed-gas channel of outlet fixed block (6), while in force samples
Mouth carries out sampling monitoring to the pressure of mixed gas, and safety valve (1) is for controlling gas pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977691.5A CN106902427B (en) | 2015-12-23 | 2015-12-23 | A kind of electronic flowmeter and the gas path control method using the electronic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977691.5A CN106902427B (en) | 2015-12-23 | 2015-12-23 | A kind of electronic flowmeter and the gas path control method using the electronic flowmeter |
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| Publication Number | Publication Date |
|---|---|
| CN106902427A CN106902427A (en) | 2017-06-30 |
| CN106902427B true CN106902427B (en) | 2019-08-06 |
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| CN201510977691.5A Active CN106902427B (en) | 2015-12-23 | 2015-12-23 | A kind of electronic flowmeter and the gas path control method using the electronic flowmeter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117258102A (en) * | 2023-11-22 | 2023-12-22 | 南京舒普思达医疗设备有限公司 | Flowmeter capable of accurately controlling flow and oxygen concentration for anesthesia machine and control method |
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| CN101437564A (en) * | 2006-02-21 | 2009-05-20 | 伟亚医疗系统制造有限公司 | Hardware configuration for pressure driver |
| EP2062531A1 (en) * | 2007-11-26 | 2009-05-27 | GE Healthcare Finland Oy | Multiple function airway adapter |
| CN202010339U (en) * | 2011-01-26 | 2011-10-19 | 北京谊安医疗系统股份有限公司 | Loop integrated device of anaesthesia machine |
| CN102266619A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | anesthesia respirator |
| BRPI1002124A2 (en) * | 2010-06-17 | 2012-03-27 | Magnamed Tecnologia Medica S A | transport fan usable for adult neonatal patients |
| CN103800983A (en) * | 2012-11-13 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Valve assembly for controlling fluid flow |
| CN103853064A (en) * | 2012-12-04 | 2014-06-11 | 深圳迈瑞生物医疗电子股份有限公司 | Fluid electronic control system and anaesthesia machine |
-
2015
- 2015-12-23 CN CN201510977691.5A patent/CN106902427B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437564A (en) * | 2006-02-21 | 2009-05-20 | 伟亚医疗系统制造有限公司 | Hardware configuration for pressure driver |
| EP2062531A1 (en) * | 2007-11-26 | 2009-05-27 | GE Healthcare Finland Oy | Multiple function airway adapter |
| BRPI1002124A2 (en) * | 2010-06-17 | 2012-03-27 | Magnamed Tecnologia Medica S A | transport fan usable for adult neonatal patients |
| CN102266619A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | anesthesia respirator |
| CN202010339U (en) * | 2011-01-26 | 2011-10-19 | 北京谊安医疗系统股份有限公司 | Loop integrated device of anaesthesia machine |
| CN103800983A (en) * | 2012-11-13 | 2014-05-21 | 深圳迈瑞生物医疗电子股份有限公司 | Valve assembly for controlling fluid flow |
| CN103853064A (en) * | 2012-12-04 | 2014-06-11 | 深圳迈瑞生物医疗电子股份有限公司 | Fluid electronic control system and anaesthesia machine |
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| CN106902427A (en) | 2017-06-30 |
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