CN109771767A - A kind of pneumatic spare flowmeter control system of Anesthesia machine - Google Patents
A kind of pneumatic spare flowmeter control system of Anesthesia machine Download PDFInfo
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- CN109771767A CN109771767A CN201910087982.5A CN201910087982A CN109771767A CN 109771767 A CN109771767 A CN 109771767A CN 201910087982 A CN201910087982 A CN 201910087982A CN 109771767 A CN109771767 A CN 109771767A
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Abstract
The present invention relates to medical equipment technical fields, disclose a kind of pneumatic spare flowmeter control system of Anesthesia machine, comprising: oxygen source, laughing gas gas source and air gas source；Spare flowmeter, respectively with oxygen source, laughing gas gas source and air gas source piping connection；Output interface is set to the output end of spare flowmeter, with spare flowmeter piping connection；Cylinder is set to the side of spare flowmeter；Gas circuit component, input terminal and oxygen source piping connection, output end and cylinder piping connection.Gas circuit component plays starting, the stretching motion of cylinder is controlled by gas circuit component, and then spare flowmeter is driven to carry out stretching motion, spare flowmeter is facilitated to be hidden when not working, regulate and control the gas flow of oxygen source, laughing gas gas source and air gas source by spare flowmeter, the mixed gas of corresponding proportion is improved, to external Anesthesia machine to improve the safety in utilization of Anesthesia machine.
Description
Technical field
The present invention relates to medical equipment technical field more particularly to a kind of pneumatic spare flowmeter control systems of Anesthesia machine
System.
Background technique
Anesthesia is used as a kind of medical procedure, is increasingly recognized and is used by medical profession.Ether air anesthesia unit device is light
It is applicable in, can be carried out assisted respiartion and control breathing directly using air and oxygen as carrier gas, meet various operation requirements；
Its working principle is that: patient connect after completing anesthesia induction, by ether air anesthesia unit with sealed mask or tracheal catheter.Air-breathing
When, it anaesthetizes inspiratory valve of the mixed gas through opening and enters in patient body；When expiration, expiratory valve is opened, while inspiratory valve
It closes, the gas of exhalation is discharged.When using auxiliary or control breathing, using collapsible bellows.It is depressed when air-breathing, when expiration
Pull-up guarantees that patient has enough ventilatory capacities.Simultaneously according to actual needs, adjustment ether switch is to maintain stable anesthesia water
It is flat.
In the prior art, when Anesthesia machine does not have spare flow regulation state, the failure of master control flowmeter will lead to machine not
It can work；When the spare flow flowmeter of Anesthesia machine only has oxygen state, the failure of master control flowmeter can only just use oxygen, cannot
Use mixed gas；When the spare flowmeter control system of Anesthesia machine is automatically controlled state, power-supply system will lead to when breaking down
Machine cannot work；Therefore, lack corresponding spare flowmeter will affect Anesthesia machine using safe.
Therefore, the safety for how improving the spare flow control of Anesthesia machine becomes technical problem urgently to be resolved.
Summary of the invention
The technical problem to be solved in the present invention is that how to improve the safety of the spare flow control of Anesthesia machine.
For this purpose, according in a first aspect, the embodiment of the invention discloses a kind of pneumatic spare flowmeter control systems of Anesthesia machine
System, comprising: oxygen source, for providing oxygen input；Laughing gas gas source, for providing laughing gas input；Air gas source, for providing
Air input；Spare flowmeter controls oxygen for adjusting respectively with oxygen source, laughing gas gas source and air gas source piping connection
The gas flow of gas gas source, laughing gas gas source and air gas source, so that needed for external Anesthesia machine is provided when master control flowmeter fails
Gas flow；Output interface is set to the output end of spare flowmeter, and spare flowmeter piping connection, for being connected to
External Anesthesia machine simultaneously exports the gas flow through spare flowmeter regulation oxygen source, laughing gas gas source and air gas source；Cylinder, if
It is placed in the side of spare flowmeter, for the stretching motion of the spare flowmeter of pneumatic control, when so that spare flowmeter not working
Conveniently it is hidden；Gas circuit component, input terminal and oxygen source piping connection, output end and cylinder piping connection, for passing
The oxygen of oxygen transfer gas source and the piston rod progress stretching motion of pneumatic control cylinder.
Optionally, further includes: the first check valve, input terminal and oxygen source piping connection, output end and spare flow
Piping connection is counted, for controlling the oxygen flow direction of oxygen source.
Optionally, further includes: second one-way valve, input terminal and laughing gas gas source piping connection, output end and spare flow
Piping connection is counted, for controlling the laughing gas flow direction of laughing gas gas source.
Optionally, further includes: third check valve, input terminal and air gas source piping connection, output end and spare flow
Piping connection is counted, for controlling the air-flow direction of air gas source.
Optionally, further includes: block valve, input terminal and oxygen source piping connection, output end and spare flowmeter tube
Road connection, the oxygen for oxygen source to be truncated input.
Optionally, spare flowmeter includes: oxygen flow meter, input terminal and oxygen source piping connection, output end with
Output interface piping connection, for adjusting the gas flow of control oxygen source；Nitrous oxide flowmeter, input terminal and laughing gas gas source
Piping connection, output end and output interface piping connection, for adjusting the gas flow of control laughing gas gas source；Air flow meter,
Its input terminal and air gas source piping connection, output end and output interface piping connection, for adjusting the gas of control air gas source
Body flow；Wherein, oxygen flow meter, nitrous oxide flowmeter and air flow meter common output.
Optionally, gas circuit component includes: the first valve, input terminal and oxygen source piping connection, for controlling oxygen
The oxygen input quantity of gas source；Second valve, input terminal and oxygen source piping connection, the oxygen for controlling oxygen source are defeated
Enter amount；Second valve and the first valve shared input；Two five-way valves, input terminal respectively with the first valve, the second valve
Output end piping connection, output end and cylinder piping connection；Two five-way valves pass through the first valve and the second valve into oxygen
To realize starting, so that cylinder drives spare flowmeter to carry out stretching motion.
Optionally, further includes: flow-limiting valve, input terminal and oxygen source piping connection, output end and two five-way valve pipes
The input terminal piping connection on road, the oxygen for limiting oxygen source enter the gas flow of two five-way valves；Flow-limiting valve and second
Valve shared input.
Optionally, the first valve is two-position three-way valve.
Optionally, the second valve is two-position three-way valve.
The invention has the following advantages: gas circuit component plays starting, the flexible of cylinder is controlled by gas circuit component
Movement, and then spare flowmeter is driven to carry out stretching motion, facilitate spare flowmeter to be hidden when not working, passes through standby stream
Meter regulates and controls the gas flow of oxygen source, laughing gas gas source and air gas source, to external Anesthesia machine improves the mixed of corresponding proportion
Gas is closed, to improve the safety in utilization of Anesthesia machine.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the pneumatic spare flowmeter control system of Anesthesia machine disclosed in the present embodiment.
Appended drawing reference: 1, oxygen source；2, the first valve；3, the second valve；4, flow-limiting valve；5, two five-way valves；6, gas
Cylinder；7, the first check valve；8, oxygen flow meter；9, laughing gas gas source；10, block valve；11, second one-way valve；12, laughing gas flow
Meter；13, air gas source；14, third check valve；15, air flow meter；16, output interface.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements, can be wireless connection, be also possible to wired connection.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
A kind of pneumatic spare flowmeter control system of Anesthesia machine, as shown in Figure 1, comprising: oxygen source 1, laughing gas gas source
9, air gas source 13, spare flowmeter, output interface 16, cylinder 6 and gas circuit component, in which: oxygen source 1 is for providing oxygen
Input；Laughing gas gas source 9 is for providing laughing gas input；Air gas source 13 is for providing air input；Spare flowmeter respectively with oxygen
Gas gas source 1, laughing gas gas source 9 and 13 piping connection of air gas source, spare flowmeter is for adjusting control oxygen source 1, laughing gas gas
The gas flow in source 9 and air gas source 13, so that external Anesthesia machine provides required gas flow when master control flowmeter fails；
Output interface 16 is set to the output end of spare flowmeter, output interface 16 and spare flowmeter piping connection, output interface 16
For being connected to external Anesthesia machine and exporting the gas through spare flowmeter regulation oxygen source 1, laughing gas gas source 9 and air gas source 13
Body flow；Cylinder 6 is set to the side of spare flowmeter, and cylinder 6 is used for the stretching motion of the spare flowmeter of pneumatic control, so that
Spare flowmeter is conveniently hidden when not working；The input terminal and 1 piping connection of oxygen source of gas circuit component, gas circuit component
Output end and 6 piping connection of cylinder, gas circuit component are used for transmission the oxygen of oxygen source 1 and the piston rod of pneumatic control cylinder 6
Carry out stretching motion.In a particular embodiment, the oxygen concentration for exporting laughing gas mixed gas is not less than 25%.
It should be noted that gas circuit component plays starting when the failure of master control flowmeter, gas is controlled by gas circuit component
The stretching motion of cylinder 6, and then spare flowmeter is driven to carry out stretching motion, facilitate spare flowmeter to be hidden when not working,
The gas flow for regulating and controlling oxygen source 1, laughing gas gas source 9 and air gas source 13 by spare flowmeter is mentioned to external Anesthesia machine
The mixed gas of high corresponding proportion, to improve the safety in utilization of Anesthesia machine.
As shown in Figure 1, further includes: the first check valve 7, the input terminal and 1 piping connection of oxygen source of the first check valve 7,
The output end of first check valve 7 and spare flowmeter piping connection, the first check valve 7 are used to control the oxygen stream of oxygen source 1
Dynamic direction.
It should be noted that the first check valve 7 is used to control the oxygen flow direction of oxygen source 1, prevent oxygen from flowing back.
As shown in Figure 1, further includes: second one-way valve 11, the input terminal and 9 pipeline of laughing gas gas source of second one-way valve 11 connect
It connects, the output end of second one-way valve 11 and spare flowmeter piping connection, second one-way valve 11 is for controlling laughing at for laughing gas gas source 9
Flow of air direction.
It should be noted that second one-way valve 11 is used to control the laughing gas flow direction of laughing gas gas source 9, prevent laughing gas from returning
Stream.
As shown in Figure 1, further includes: third check valve 14, the input terminal and 13 pipeline of air gas source of third check valve 14 connect
It connects, the output end of third check valve 14 and spare flowmeter piping connection, third check valve 14 is for controlling air gas source 13
Air-flow direction.
It should be noted that three check valves are used to control the air-flow direction of air gas source 13, air return is prevented.
As shown in Figure 1, further includes: block valve 10, the input terminal and 1 piping connection of oxygen source of block valve 10, block valve
10 output end and spare flowmeter piping connection, block valve 10 are used to be truncated the oxygen input of oxygen source 1.
As shown in Figure 1, spare flowmeter includes: oxygen flow meter 8, nitrous oxide flowmeter 12 and air flow meter 15, oxygen
The input terminal and 1 piping connection of oxygen source of flowmeter 8, the output end and 16 piping connection of output interface of oxygen flow meter 8, oxygen
Air-flow meter 8 is used to adjust the gas flow of control oxygen source 1；The input terminal and 9 pipeline of laughing gas gas source of nitrous oxide flowmeter 12
Connection, the output end and 16 piping connection of output interface of nitrous oxide flowmeter 12, nitrous oxide flowmeter 12 is for adjusting control laughing gas gas
The gas flow in source 9；The input terminal of air flow meter 15 and 13 piping connection of air gas source, the output end of air flow meter 15 with
16 piping connection of output interface, air flow meter 15 are used to adjust the gas flow of control air gas source 13；Wherein, oxygen flow
Meter 8, nitrous oxide flowmeter 12 and 15 common output of air flow meter.
It should be noted that oxygen flow meter 8 is used to adjust the gas flow of control oxygen source 1, nitrous oxide flowmeter 12
For adjusting the gas flow of control laughing gas gas source 9, air flow meter 15 is used to adjust the gas flow of control air gas source 13,
The convenient mixed gas that corresponding proportion is improved to external Anesthesia machine.
As shown in Figure 1, gas circuit component includes: the first valve 2, the second valve 3 and two five-way valves 5, the first valve 2 it is defeated
Enter end and 1 piping connection of oxygen source, the first valve 2 is used to control the oxygen input quantity of oxygen source 1；Second valve 3 it is defeated
Enter end and 1 piping connection of oxygen source, the second valve 3 is used to control the oxygen input quantity of oxygen source 1, the second valve 3 and the
One valve, 2 shared input；The input terminal of two five-way valves 5 connects with the output end pipeline of the first valve 2, the second valve 3 respectively
It connects, the output end and 6 piping connection of cylinder of two five-way valves 5；Two five-way valves 5 pass through the first valve 2 and the second valve 3 into oxygen
Gas is to realize starting, so that cylinder 6 drives spare flowmeter to carry out stretching motion.In a particular embodiment, two five-way valves 5
Current-limiting apparatus is equipped between output end and cylinder 6, current-limiting apparatus is for limiting the oxygen tolerance that oxygen enters cylinder 6.
It should be noted that opening the first valve 2, the oxygen in oxygen source 1 is by the first valve 2, into two five
It in port valve 5, and then controls and enters in cylinder 6 by the oxygen of flow-limiting valve 4, cylinder 6 drives spare flowmeter to stretch out, and then anaesthetizes
Machine can using adjust spare flowmeter come using；When needing to hide spare flowmeter, the second valve 3 is opened, in oxygen source 1
Oxygen by the second valve 3, into two five-way valves 5, control cylinder 6, which is vented, simultaneously controls oxygen by the entrance of flow-limiting valve 4
In cylinder 6, driving cylinder 6 bounces back, and then drives spare flowmeter mobile, to hide spare flowmeter.
As shown in Figure 1, further includes: flow-limiting valve 4, the input terminal and 1 piping connection of oxygen source of flow-limiting valve 4, flow-limiting valve 4
The input terminal piping connection of output end and two 5 pipelines of five-way valve, the oxygen that flow-limiting valve 4 is used to limit oxygen source 1 enter two
The gas flow of position five-way valve 5,3 shared input of flow-limiting valve 4 and the second valve.
As shown in Figure 1, the first valve 2 is two-position three-way valve.
As shown in Figure 1, the second valve 3 is two-position three-way valve.
Working principle: when work, the first valve 2 is opened, the oxygen in oxygen source 1 is by the first valve 2, into two
It in five-way valve 5, and then controls and enters in cylinder 6 by the oxygen of flow-limiting valve 4, cylinder 6 drives spare flowmeter to stretch out, Jin Erma
Liquor-saturated machine can using adjust spare flowmeter come using；
After work, the second valve 3 is opened, the oxygen in oxygen source 1 is by the second valve 3, into two five-way valves 5
Interior, control cylinder 6 is vented and controls oxygen to be entered in cylinder 6 by flow-limiting valve 4, and driving cylinder 6 bounces back, and then drives standby stream
Meter is mobile, to hide spare flowmeter.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of pneumatic spare flowmeter control system of Anesthesia machine characterized by comprising
Oxygen source (1), for providing oxygen input；
Laughing gas gas source (9), for providing laughing gas input；
Air gas source (13), for providing air input；
Spare flowmeter connects with the oxygen source (1), the laughing gas gas source (9) and air gas source (13) pipeline respectively
It connects, for adjusting the gas flow for controlling the oxygen source (1), the laughing gas gas source (9) and the air gas source (13), with
Gas flow needed for external Anesthesia machine is provided in the failure of master control flowmeter；
Output interface (16) is set to the output end of the spare flowmeter, and the spare flowmeter piping connection, for connecting
Be connected to external Anesthesia machine and export through the spare flowmeter regulate and control the oxygen source (1), the laughing gas gas source (9) with it is described
The gas flow of air gas source (13)；
Cylinder (6) is set to the side of the spare flowmeter, for the stretching motion of spare flowmeter described in pneumatic control,
So that the spare flowmeter is conveniently hidden when not working；
Gas circuit component, input terminal and the oxygen source (1) piping connection, output end and the cylinder (6) piping connection are used
The piston rod of the cylinder (6) described in the oxygen and pneumatic control for transmitting the oxygen source (1) carries out stretching motion.
2. the pneumatic spare flowmeter control system of Anesthesia machine according to claim 1, which is characterized in that further include:
First check valve (7), input terminal and the oxygen source (1) piping connection, output end and the spare flowmeter tube
Road connection, for controlling the oxygen flow direction of the oxygen source (1).
3. the pneumatic spare flowmeter control system of Anesthesia machine according to claim 1, which is characterized in that further include:
Second one-way valve (11), input terminal and laughing gas gas source (9) piping connection, output end and the spare flowmeter tube
Road connection, for controlling the laughing gas flow direction of the laughing gas gas source (9).
4. the pneumatic spare flowmeter control system of Anesthesia machine according to claim 1, which is characterized in that further include:
Third check valve (14), input terminal and air gas source (13) piping connection, output end and the spare flowmeter
Piping connection, for controlling the air-flow direction of the air gas source (13).
5. the pneumatic spare flowmeter control system of Anesthesia machine according to claim 1, which is characterized in that further include:
Block valve (10), input terminal and the oxygen source (1) piping connection, output end and the spare flowmeter pipeline connect
It connects, the oxygen for the oxygen source (1) to be truncated inputs.
6. the pneumatic spare flowmeter control system of Anesthesia machine described in -5 any one according to claim 1, which is characterized in that
The spare flowmeter includes:
Oxygen flow meter (8), input terminal and the oxygen source (1) piping connection, output end and the output interface (16)
Piping connection, for adjusting the gas flow for controlling the oxygen source (1)；
Nitrous oxide flowmeter (12), input terminal and laughing gas gas source (9) piping connection, output end and the output interface (16)
Piping connection, for adjusting the gas flow for controlling the laughing gas gas source (9)；
Air flow meter (15), input terminal and air gas source (13) piping connection, output end and the output interface
(16) piping connection, for adjusting the gas flow for controlling the air gas source (13)；
Wherein, the oxygen flow meter (8), the nitrous oxide flowmeter (12) and the air flow meter (15) common output.
7. the pneumatic spare flowmeter control system of Anesthesia machine described in -5 any one according to claim 1, which is characterized in that
The gas circuit component includes:
First valve (2), input terminal and the oxygen source (1) piping connection, for controlling the oxygen of the oxygen source (1)
Gas input quantity；
Second valve (3), input terminal and the oxygen source (1) piping connection, for controlling the oxygen of the oxygen source (1)
Gas input quantity；Second valve (3) and the first valve (2) shared input；
Two five-way valves (5), input terminal connect with the output end pipeline of first valve (2), second valve (3) respectively
It connects, output end and the cylinder (6) piping connection；Two five-way valves (5) pass through first valve (2) and described second
Valve (3) realizes starting into oxygen, so that the cylinder (6) the driving spare flowmeter carries out stretching motion.
8. the pneumatic spare flowmeter control system of Anesthesia machine according to claim 7, which is characterized in that further include:
Flow-limiting valve (4), input terminal and the oxygen source (1) piping connection, output end and two five-way valves (5) pipeline
Input terminal piping connection, for limit the oxygen source (1) oxygen enter two five-way valves (5) gas flow；
The flow-limiting valve (4) and the second valve (3) shared input.
9. the pneumatic spare flowmeter control system of Anesthesia machine according to claim 7, which is characterized in that first valve
Door (2) is two-position three-way valve.
10. the pneumatic spare flowmeter control system of Anesthesia machine according to claim 7, which is characterized in that described second
Valve (3) is two-position three-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087982.5A CN109771767B (en) | 2019-01-29 | 2019-01-29 | Pneumatic standby flow meter control system of anesthesia machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087982.5A CN109771767B (en) | 2019-01-29 | 2019-01-29 | Pneumatic standby flow meter control system of anesthesia machine |
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| Publication Number | Publication Date |
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| CN109771767A true CN109771767A (en) | 2019-05-21 |
| CN109771767B CN109771767B (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134352A1 (en) * | 2019-12-30 | 2021-07-08 | 深圳迈瑞生物医疗电子股份有限公司 | Backup flow control system and method applicable to anesthesia machine |
| CN113855982A (en) * | 2021-09-30 | 2021-12-31 | 深圳市科曼医疗设备有限公司 | Anesthetic evaporator |
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| EP0788805A2 (en) * | 1996-02-06 | 1997-08-13 | DeVilbiss Health Care, Inc. | Control for CPAP apparatus |
| JP2005040422A (en) * | 2003-07-24 | 2005-02-17 | Teijin Ltd | Artificial respiration assisting apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021134352A1 (en) * | 2019-12-30 | 2021-07-08 | 深圳迈瑞生物医疗电子股份有限公司 | Backup flow control system and method applicable to anesthesia machine |
| CN113855982A (en) * | 2021-09-30 | 2021-12-31 | 深圳市科曼医疗设备有限公司 | Anesthetic evaporator |
| CN113855982B (en) * | 2021-09-30 | 2023-07-18 | 深圳市科曼医疗设备有限公司 | Anesthesia evaporation device |
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| CN109771767B (en) | 2020-06-26 |
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