CN102266617B - Gas delivery device and anesthesia machine with same - Google Patents
Gas delivery device and anesthesia machine with same Download PDFInfo
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- CN102266617B CN102266617B CN201010620493.0A CN201010620493A CN102266617B CN 102266617 B CN102266617 B CN 102266617B CN 201010620493 A CN201010620493 A CN 201010620493A CN 102266617 B CN102266617 B CN 102266617B
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Abstract
The invention provides a gas delivery device and an anesthesia machine with the same. The gas delivery device comprises a gas path switching valve, a laughing gas control valve and an air control valve, wherein when the valve plug of the gas path switching valve is in a first position, a first gas inlet and a first gas outlet of the gas path switching valve are communicated, the laughing gas control valve is switched on, and the air control valve is switched off; and when the valve plug of the gas path switching valve is in a second position, the first gas inlet, the first gas outlet and a second gas outlet of the gas path switching valve are communicated, the laughing gas control valve is switched off, and the air control valve is switched on. The gas delivery device provided by the invention controls the laughing gas control valve and the air control valve to be switched on and switched off by oxygen output by one gas outlet of the gas path switching valve, can reliably realize various requirements when the anesthesia machine delivers gas, can eliminate the hidden danger of gas leakage because one or two valves are not switched off, and has a small number of valve bodies, a clear structure, a simple control process and high reliability.
Description
Technical field
The present invention relates to medical instruments field, especially, relate to a kind of gas transfer device and there is the anesthetic machine of this transfer device.
Background technology
During anesthetic machine work, need to meet oxygen and the common input of laughing gas or oxygen and air inputs simultaneously, and the requirement that laughing gas and air can not be inputted simultaneously, but existing anesthetic machine adopts split type gas transfer device to transmit respectively dissimilar gas conventionally, and each gas transfer device is controlled respectively to reach the requirement of anesthetis work.The gas transfer device volume of the anesthetic machine of this type is larger, and can not utilize a device to realize oxygen and the common input of laughing gas or oxygen and air simultaneously and input simultaneously, and the requirement that laughing gas and air can not be inputted simultaneously.
Summary of the invention
The anesthetic machine that the object of the invention is to provide a kind of gas transfer device and has this transfer device, to solve the air delivery device of existing anesthetic machine, oxygen and the common input of laughing gas or oxygen and air can not be inputted simultaneously, and the technical problem that the function that laughing gas and air can not be inputted simultaneously combines together.
For solving the problems of the technologies described above, the invention provides a kind of gas transfer device, it comprises: air way switch valve, comprises the first air inlet; The first gas outlet; The second gas outlet; Laughing gas control valve, comprises; The second air inlet, is connected with the first gas outlet of air way switch valve; First controls mouth, is connected with the second gas outlet of air way switch valve; The 3rd gas outlet; Valve for blocking laughing gas, comprising: block valve is controlled mouth, is connected with the 3rd gas outlet of laughing gas control valve; Laughing gas air inlet; Laughing gas gas outlet, is connected with effusion meter laughing gas pipe; Air shut-off valve, comprising: the 3rd air inlet; Second controls mouth, is connected with the second gas outlet of air way switch valve; Air gas outlet, be connected with effusion meter air hose, wherein, when the spool of air way switch valve is during in primary importance, the first air inlet is communicated with the first gas outlet, laughing gas control valve is opened, air shut-off valve is closed, and when the spool of air way switch valve is during in the second position, the first air inlet is all communicated with the first gas outlet and the second gas outlet, laughing gas control valve is closed, and air shut-off valve is opened.
Further, laughing gas control valve is normally open valve, when the spool of air way switch valve is in primary importance, when the first air inlet is communicated with the first gas outlet, laughing gas control valve maintains opening, when the spool of air way switch valve is in the second position, when the first air inlet is all communicated with the first gas outlet and the second gas outlet, laughing gas control valve is closed under the effect of the gas from the second gas outlet output.
Further, air shut-off valve is normally close valve, and when the spool of air way switch valve is in the second position, when the first air inlet is all communicated with the first gas outlet and the second gas outlet, air shut-off valve is opened under the effect of the gas from the second gas outlet output.
Further, gas transfer device provided by the present invention also comprises: the first three way cock, comprising: the first input adapter, is connected with the first gas outlet of air way switch valve; The first out splice going splice, is connected with effusion meter oxygen hose; The second out splice going splice, is connected with the second air inlet of laughing gas control valve; The second three way cock, comprising: the second input adapter, is connected with the second gas outlet of air way switch valve; The 3rd out splice going splice, controls mouth with first of laughing gas control valve and is connected; The 4th out splice going splice, controls mouth with second of air shut-off valve and is connected.
Further, the first air inlet of air way switch valve has oxygen source splicing ear; The laughing gas air inlet of valve for blocking laughing gas has laughing gas source of the gas splicing ear; The 3rd air inlet of air shut-off valve has air source of the gas splicing ear.
Further, laughing gas control valve also comprises the 3rd air vent, and when laughing gas control valve is closed, the 3rd air vent is communicated with atmosphere; Air shut-off valve also comprises air exhaust port, and when air shut-off valve is closed, this air exhaust port is communicated with atmosphere.
Further, when the spool of air way switch valve is during in the 3rd position, the first air inlet all ends with the first gas outlet and the second gas outlet.
Further, air way switch valve has manual switchover button, the spool interlock of this manual switchover button and air way switch valve.
According to another aspect of the present invention, also provide a kind of anesthetic machine with above-mentioned gas transfer device.
The present invention has following beneficial effect:
The laughing gas control valve and the air shut-off valve that by the gas circuit of air way switch valve, switch and be controlled by the output oxygen of gas circuit reversal valve, can realize the output simultaneously of oxygen and laughing gas, oxygen and air exports simultaneously, and the operating mode of laughing gas time output different from air, can eliminate the hidden danger that is not closed the Leakage Gas causing due to indivedual valves simultaneously.Gas transfer device valve body quantity provided by the present invention is few, clear in structure, control procedure is simple, and met on market and inputted thering is the input simultaneously of oxygen and laughing gas or oxygen and air simultaneously, and the demand of the anesthetic machine of the function that air and laughing gas can not be exported simultaneously.。
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the syndeton schematic diagram of the preferred embodiment of the present invention; And
Fig. 2 is the work process schematic diagram of the preferred embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As depicted in figs. 1 and 2, gas transfer device provided by the invention comprises: air way switch valve 11, laughing gas control valve 21, and air shut-off valve 31, in fact, laughing gas control valve 21 also can be called laughing gas control valve, the 3rd control valve with air shut-off valve 31, in the present embodiment, clear for what explain, the title of two valves is distinguished, and during practical application, both can adopt the valve of same model.Air way switch valve 11 is mainly used in the selection of break-make and the gas circuit of control inputs oxygen, and it has the first air inlet 11a being connected with oxygen source 15, the first gas outlet 11b being communicated with effusion meter oxygen hose 10, the second gas outlet 11c.Laughing gas control valve 21 comprises the second air inlet 21b being connected with the first gas outlet 11b of air way switch valve 11, a first control mouthful 21c who is connected with the second gas outlet 11c of air way switch valve 11, and the 3rd gas outlet 21d being connected with effusion meter laughing gas pipe 20.Due to oxygen pressure, during lower than 100 kPas, laughing gas requires to be truncated, so be also provided with valve for blocking laughing gas 23 between the 3rd gas outlet 21d of laughing gas control valve 21 and effusion meter laughing gas pipe 20, laughing gas is truncated when guaranteeing that oxygen pressure is lower.Air shut-off valve 31, comprises the 3rd air inlet 31a being connected with air source of the gas 35, a second control mouthful 31b who is connected with the second gas outlet 11c of air way switch valve 11, and the air gas outlet 31c being connected with effusion meter air hose 30.Air way switch valve 11 has the manual reverse of direction button with spool interlock, the periphery of this change-over key can be provided with gas sign, by manual reverse of direction button rotation when being designated " O2+N2O ", spool is in primary importance, the first air inlet 11a is communicated with described the first gas outlet 11b, laughing gas control valve 21 is opened, and air shut-off valve 31 is closed; By manual reverse of direction button rotation, when being designated " O2+Air ", spool is in the second position, and the first air inlet 11a is all communicated with the first gas outlet 11b and the second gas outlet 11c, and laughing gas control valve 21 is closed, and air shut-off valve 31 is opened.When manual reverse of direction button rotation is when being designated " OFF ", spool is in the 3rd position, and the first air inlet 11a is not all communicated with the first gas outlet 11b and the second gas outlet 11c.
In fact, according to breathing requirement, during anesthetic machine work, must there is oxygen, select oxygen as the control gas of controlling laughing gas control valve 21 and air shut-off valve 31 actions, so gas path control valve 11 can be chosen as to normally close valve, be spool in the 3rd position, the first air inlet 11a is not all communicated with the first gas outlet 11b and the second gas outlet 11c, all there is no gas input in each trachea of effusion meter.
The 3rd air inlet 31a of air shut-off valve 31 is connected with air source of the gas 35, air shut-off valve 31 can be chosen as to normally close valve, because laughing gas can not exist with air simultaneously, so laughing gas control valve 21 can be chosen as to normally open valve, laughing gas control valve 21 all has the mouth of control (the second air inlet 21c and second controls a mouthful 31b) to be connected with the second gas outlet of air way switch valve 11 with air shut-off valve 31, namely adopts one air-flow to control the switching of air shut-off valve and laughing gas control valve simultaneously.When the spool of air way switch valve 11 is in primary importance, when the first air inlet 11a is communicated with the first gas outlet 11b, laughing gas control valve 21 maintains opening, and under the effect of the oxygen from the first gas outlet 11b output, valve for blocking laughing gas 23 is opened, laughing gas in laughing gas source of the gas is transported to effusion meter laughing gas pipe from the laughing gas air inlet 23a of valve for blocking laughing gas 23, from the first gas outlet 11b, also can be fed directly to effusion meter oxygen hose 10, met the requirement that oxygen and laughing gas are carried simultaneously simultaneously.When the spool of air way switch valve 11 is in the second position, when the first air inlet 11a is all communicated with the first gas outlet 11b and the second gas outlet 11c, laughing gas control valve 21 is closed under the effect of the oxygen from the second gas outlet 11c output, valve for blocking laughing gas 23 is also in closed condition, air shut-off valve 31 is opened under the effect of the same road oxygen from the second gas outlet output, gas in air source of the gas 35 is transported in effusion meter air hose 30 by the air gas outlet 31c of air shut-off valve 31, from the first gas outlet 11b, still can be fed directly to effusion meter oxygen hose 10 simultaneously, met oxygen and air is carried simultaneously, and the requirement that laughing gas and air can not be carried simultaneously.
For being connected between two gas outlets of air way switch valve 11 and follow-up valve and effusion meter oxygen hose more clear, reliable, gas transfer device provided by the present invention can also comprise two three way cock, i.e. the first three way cock 12 and the second three way cock 13, wherein, the first three way cock 12 has the first input adapter being connected with the first gas outlet 11b of air way switch valve 11, the first out splice going splice being connected with effusion meter oxygen hose 10, and the second out splice going splice being connected with the second air inlet 21b of laughing gas control valve 21; The second three way cock 13 has the second input adapter being connected with the second gas outlet 11c of air way switch valve 11, the 3rd out splice going splice being connected with the first control mouthful 21c of laughing gas control valve 21, and controls with second of air shut-off valve 31 the 4th out splice going splice that mouthful 31b is connected.
In order to make gas transfer device provided by the present invention there is higher practicality, the first air inlet 11a at air way switch valve 11 is provided with oxygen source splicing ear, laughing gas air inlet 21a at laughing gas control valve 21 is provided with laughing gas source of the gas splicing ear, at the 3rd air inlet 31a of air shut-off valve 31, is provided with air source of the gas splicing ear.Utilize these source of the gas splicing ears, just can be connected with corresponding source of the gas easily.
Laughing gas control valve 21 and air shut-off valve 31 also comprise respectively the 3rd air vent 21e and air exhaust port 31d, when laughing gas control valve 21 is closed, while no longer carrying laughing gas to effusion meter laughing gas pipe 20, the 3rd air vent 21e is communicated with atmosphere, unnecessary gas in cavity is drained in atmosphere, when air shut-off valve 31 is closed, while no longer carrying air to effusion meter air hose, this air exhaust port 31d is communicated with atmosphere, gets rid of gas more than needed in cavity.
As a preferred embodiment, air way switch valve 11 is three six-way transfer valves, and laughing gas control valve 21 and air shut-off valve 31 are two-bit triplet reversal valve, and valve for blocking laughing gas 23 is two two-way on-off valves.
According to another aspect of the present invention, also provide a kind of anesthetic machine with above-mentioned gas transfer device.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a gas transfer device, is characterized in that, comprising:
Air way switch valve (11), comprises
The first air inlet (11a);
The first gas outlet (11b), is connected with effusion meter oxygen hose (10);
The second gas outlet (11c);
Laughing gas control valve (21), comprises;
The second air inlet (21b), is connected with first gas outlet (11b) of described air way switch valve (11);
First controls mouthful (21c), is connected with second gas outlet (11c) of described air way switch valve (11);
The 3rd gas outlet (21d);
Valve for blocking laughing gas (23), comprising:
Block valve is controlled mouthful (23c), is connected with the 3rd gas outlet (21d) of described laughing gas control valve (21);
Laughing gas air inlet (23a);
Laughing gas gas outlet (23d), is connected with effusion meter laughing gas pipe (20);
Air shut-off valve (31), comprising:
The 3rd air inlet (31a);
Second controls mouthful (31b), is connected with second gas outlet (11c) of described air way switch valve (11);
Air gas outlet (31c), is connected with effusion meter air hose (30),
Wherein,
When the spool of described air way switch valve (11) is during in primary importance, described the first air inlet (11a) is communicated with described the first gas outlet (11b), described laughing gas control valve (21) is opened, described air shut-off valve (31) is closed, when the spool of described air way switch valve (11) is during in the second position, described the first air inlet (11a) is all communicated with described the first gas outlet (11b) and described the second gas outlet (11c), described laughing gas control valve (21) is closed, and described air shut-off valve (31) is opened.
2. gas transfer device according to claim 1, is characterized in that,
Described laughing gas control valve (21) is normally open valve, when the spool of described air way switch valve (11) is in primary importance, when described the first air inlet (11a) is communicated with described the first gas outlet (11b), described laughing gas control valve (21) maintains opening, when the spool of described air way switch valve (11) is in the second position, when described the first air inlet (11a) is all communicated with described the first gas outlet (11b) and described the second gas outlet (11c), described laughing gas control valve (21) is closed under the effect of the gas from described the second gas outlet (11c) output.
3. gas transfer device according to claim 1, is characterized in that,
Described air shut-off valve (31) is normally close valve, when the spool of described air way switch valve (11) is in the second position, when described the first air inlet (11a) is all communicated with described the first gas outlet (11b) and described the second gas outlet (11c), described air shut-off valve (31) is opened under the effect of the gas from described the second gas outlet (11c) output.
4. gas transfer device according to claim 1, is characterized in that, also comprises:
The first three way cock (12), comprising:
The first input adapter, is connected with first gas outlet (11b) of described air way switch valve (11);
The first out splice going splice, is connected with described effusion meter oxygen hose (10);
The second out splice going splice, is connected with second air inlet (21b) of described laughing gas control valve (21);
The second three way cock (13), comprising:
The second input adapter, is connected with second gas outlet (11c) of described air way switch valve (11);
The 3rd out splice going splice, controls mouthful (21c) with first of described laughing gas control valve (21) and is connected;
The 4th out splice going splice, controls mouthful (31b) with second of described air shut-off valve (31) and is connected.
5. according to the gas transfer device described in any one in claim 1 to 4, it is characterized in that,
First air inlet (11a) of described air way switch valve (11) has oxygen source splicing ear;
The laughing gas air inlet (23a) of described valve for blocking laughing gas (23) has laughing gas source of the gas splicing ear;
The 3rd air inlet (31a) of described air shut-off valve (31) has air source of the gas splicing ear.
6. according to the gas transfer device described in any one in claim 1 to 4, it is characterized in that,
Described laughing gas control valve (21) also comprises the 3rd air vent (21e), and when described laughing gas control valve (21) is closed, described the 3rd air vent (21e) is communicated with atmosphere;
Described air shut-off valve (31) also comprises air exhaust port (31d), and when described air shut-off valve (31) is closed, described air exhaust port (31d) is communicated with atmosphere.
7. gas transfer device according to claim 6, it is characterized in that, when the spool of described air way switch valve (11) is during in the 3rd position, described the first air inlet (11a) all ends with described the first gas outlet (11b) and described the second gas outlet (11c).
8. gas transfer device according to claim 7, is characterized in that, described air way switch valve (11) has manual switchover button, with the spool interlock of described air way switch valve (11).
9. an anesthetic machine, is characterized in that, comprises the gas transfer device described in any one in claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620493.0A CN102266617B (en) | 2010-12-31 | 2010-12-31 | Gas delivery device and anesthesia machine with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620493.0A CN102266617B (en) | 2010-12-31 | 2010-12-31 | Gas delivery device and anesthesia machine with same |
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| CN102266617A CN102266617A (en) | 2011-12-07 |
| CN102266617B true CN102266617B (en) | 2014-02-26 |
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| CN201010620493.0A Active CN102266617B (en) | 2010-12-31 | 2010-12-31 | Gas delivery device and anesthesia machine with same |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102793960B (en) * | 2012-08-14 | 2015-01-21 | 苏州品诺维新医疗科技有限公司 | Air path device for pneumatic control passage switching and control method |
| CN104225747A (en) * | 2013-06-08 | 2014-12-24 | 北京谊安医疗系统股份有限公司 | Anesthesia machine and mechanical control electronic display flowmeter assembly thereof |
| CN106860997A (en) * | 2017-03-24 | 2017-06-20 | 刘学佳 | A kind of Anesthesia machine gas inlet conversion device |
| CN109125877B (en) * | 2018-10-23 | 2020-11-03 | 河南省中医院（河南中医药大学第二附属医院） | Clinical anesthesia branch of academic or vocational study is with supplying medicine anesthesia device |
| CN109771767B (en) * | 2019-01-29 | 2020-06-26 | 深圳市科曼医疗设备有限公司 | Pneumatic standby flow meter control system of anesthesia machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328823A (en) * | 1980-05-14 | 1982-05-11 | N.A.D. Inc. | Oxygen flow ratio controller for anesthesia apparatus |
| DE3817985A1 (en) * | 1988-05-27 | 1989-12-07 | Salvia Werk Gmbh | DEVICE FOR SUPPORTING THE SPONTANEOUS BREATHING OF A PATIENT |
| CN201052323Y (en) * | 2007-07-10 | 2008-04-30 | 复旦大学附属上海市第五人民医院 | Automatic switchover device for patient air feeding |
| CN201337736Y (en) * | 2009-01-20 | 2009-11-04 | 江苏凯泰医疗设备有限公司 | Oxygen concentration control device of intelligent breathing machine |
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