CN102698571B - Moisture filter - Google Patents
Moisture filter Download PDFInfo
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- CN102698571B CN102698571B CN201210165113.8A CN201210165113A CN102698571B CN 102698571 B CN102698571 B CN 102698571B CN 201210165113 A CN201210165113 A CN 201210165113A CN 102698571 B CN102698571 B CN 102698571B
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- inner bag
- overcoat
- cavity
- steam
- air flue
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Abstract
The invention provides a moisture filter capable of effectively removing impurities such as moisture, secretion, bacteria, etc. contained in an expired gas sample. The moisture filter comprises an inner container, an outer sleeve and a connection structure; the inner container is internally provided with an air passage penetrating through the inner container in the vertical direction; the inner container further comprises a cavity for containing hydrophilic materials and hydrophilic materials contained in the cavity; the outer side wall of the inner container is hermetically coated by a moisture permeable film, wherein the wall of the cavity is further provided with an opening, through which the hydrophilic materials in the cavity are communicated with the moisture permeable film; the front end of the outer sleeve is hermetically fixed with a base plate provided with a plurality of vent holes; the rear end of the outer sleeve is configured into an open end; after the inner container is inserted into the cavity in the outer sleeve from the open end of the outer sleeve, a filter film capable of covering the front end face of the inner container and isolating the front end face of the inner container from the back surface of the base plate is fixed between the front end face of the inner container and the back surface of the base plate; the moisture permeable film is a film which does not allow air to pass through but allows moisture to pass through, and the filter film is a film which does not allow moisture to pass through but allows air to pass through; with the adoption of the moisture filter, the service life of a gas analyzer is prolonged and the health of patients is guaranteed simultaneously.
Description
Technical field
The present invention relates to a kind of medical breath filter, particularly a kind of steam filter that for the impurity such as steam and secretion and bacterium in filtering breathing, only allows dry breathing gas to pass through.
Background technology
In medical practice, the gas that adopts gas analyzer to breathe out to patient carries out test analysis, detects the patients with respiratory tract state of an illness, can report to the police if desired.But in the gas sample that patient breathes out, conventionally contain the objectionable impurities such as steam and secretion and bacterium, if wherein the impurity of the moisture content such as steam and secretion and bacterium enters in gas analyzer, get off for a long time and can damage the air-channel system of gas analyzer.The impurity of the moisture contents such as steam and secretion and bacterium also causes the wet environment in air-channel system, for growing of bacterium provides condition, causes the enrichment of bacterium in air-channel system, shortens the service life of gas analyzer, and harm patient's is healthy.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of steam filter that can effectively remove the impurity such as steam and secretion and bacterium containing in breath sample is provided, to extend service life of gas analysis instrument, ensured that patient's is healthy simultaneously.
Technical scheme:
A kind of steam filter, is characterized in that, comprise inner bag and with the suitable overcoat of shape, the size of described inner bag, also comprise the syndeton for fixing described inner bag and described overcoat relative position, described inner bag inside includes runs through its longitudinal air flue, described air flue comprises the air inlet that is positioned at inner bag rear end and the gas outlet that is positioned at inner bag front end, described inner bag also comprises the cavity for holding water wetted material, with the water wetted material that is positioned at described cavity, the lateral wall of described inner bag is sealed and coated with moisture permeable membrane, wherein, on the chamber wall of described cavity, being provided with opening can communicate with moisture permeable membrane the water wetted material in cavity, the forward end seal of described overcoat is fixed with the base plate with venthole, the rear end of described overcoat is openend, described inner bag is from described overcoat openend inserts overcoat inner chamber, between the front end face of described inner bag and the rear surface of base plate, be fixed with can cover inner bag front end face and by the filter membrane of isolating between inner bag front end face and base plate rear surface, described moisture permeable membrane is airtight but permeable film, described filter membrane is ventilative but fluid-tight film.
Described cavity is positioned at described air flue around, and is connected by one or several through holes between described air flue inner chamber and described inside cavity.
Described inner bag is cylinder, described air flue is positioned at described cylindrical center, described cavity is to be positioned at described air flue several little cavitys along inner bag length direction around, the front end of described little cavity is openend, the rear end of described little cavity is blind end, chamber, the inner side wall of described little cavity offers the some small through hole that lead to air flue inner chamber, the interlude of chamber, the outside wall of described little cavity is described opening, correspondingly, the lateral wall of described inner bag comprises open architecture and the remaining skeleton structure of the depression being formed by described opening, described skeleton structure comprise be positioned at inner bag front end along the circumferential front end framework of inner bag lateral wall, be positioned at inner bag rear end along the circumferential rear end skeleton of inner bag lateral wall and be positioned at inner bag stage casing along the longitudinal vertical skeleton of inner bag, described moisture permeable membrane is by being fixed in skeleton structure to ensure the coated described inner bag of sealing.
The cross-sectional area of described air flue is less than the cross-sectional area of described little cavity; Or the front end face of described water wetted material is positioned on the front end face of described little cavity.
The front end face of described air flue is positioned at the rear side of described inner bag front end face, and the front end face of described little cavity is positioned on the front end face of described inner bag.
Between described filter membrane and the rear surface of described base plate, be provided with elastic washer.
On the aperture position of the cavity corresponding to inner bag of described overcoat, offer ventilating structure.
Described base plate is positioned at the rear side of the front end face of described overcoat, and described overcoat also comprises that one is positioned at the escape pipe of described base plate front side, and one end of described escape pipe is fixedly communicated with the venthole of described base plate.
Described syndeton comprises from the extended one section of short cylinder of inner bag rear side, the radius of described short cylinder is greater than the radius of described rear end skeleton and forms a circumferential boss stage structure with respect to rear end skeleton, on described boss stage structure, be provided with projection, correspondingly, described syndeton is also included in the little opening arranging on the relevant position of described overcoat, described inner bag inserts after described overcoat, and described projection snaps in described little opening to fix the relative position of inner bag and overcoat.
The difference of the radius of the radius of described short cylinder and described rear end skeleton equals to be coated on the thickness of the moisture permeable membrane on described skeleton.
The air inlet place of the air flue of described inner bag is fixedly connected with female Luer.
Technique effect:
The invention provides a kind of steam filter, comprise inner bag and overcoat, the sealing of overcoat one end is fixed with the base plate with venthole, and the other end of overcoat is openend, and inner bag is for inserting in overcoat from openend; Inner bag comprises air flue and cavity, water wetted material is housed in cavity, the lateral wall of inner bag is coated with moisture permeable membrane, between the front end face of inner bag and the rear surface of base plate, be also fixed with filter membrane,, filter membrane on inner bag and moisture permeable membrane have formed a cavity, the dry air entering the breath sample of cavity from air flue is discharged through filter membrane and from the venthole of base plate, steam in breath sample and other moisture impurity are stored in water wetted material inside, and moisture is wherein discharged steam filter by moisture permeable membrane.
Be arranged on air flue around for the cavity that holds water wetted material, and by through hole, air flue inner chamber be connected with inside cavity, the impurity such as steam and secretion and bacterium in air flue is fully absorbed by water wetted material.
In preferred situation, inner bag is cylinder, air flue is positioned at cylindrical center, the surrounding of air flue is that several little cavitys are such as 2, 3, 4, 5 or 6 etc., the front end of little cavity is openend, rear end is blind end, water wetted material can insert from the front end of little cavity, chamber, the inner side wall of little cavity offers several small through hole that lead to air flue inner chamber, for absorbing the steam of breath in air flue, secretion, the impurity that bacterium etc. contain moisture, the interlude of chamber, the outside wall of little cavity is described opening, for the connection of water wetted material and moisture permeable membrane, moisture permeable membrane is fixed in the skeleton structure of inner bag to realize the coated inner bag of moisture permeable membrane sealing.
Preferably, the cross-sectional area of air flue is less than the cross-sectional area of little cavity, and making has enough spaces to hold relatively many water wetted materials in moisture filter; Make the dead space of this device little simultaneously, can affect hardly the real-time detection curve of breath sample.
Wherein, the front end face of air flue is positioned at the rear side of inner bag front end face, i.e. one segment distance of indentation to the back-end, its object is, even if having steam or moisture impurity to flow out from the front end of air flue, this of indentation section space also can make water wetted material that steam and moisture impurity is positioned at front end (because the front end face of water wetted material is positioned on the front end face of little cavity, therefore, in the little cavity corresponding with indentation space, be the front end of water wetted material) absorb and diffusion storage in water wetted material, filter membrane is kept dry state.
Wherein, between filter membrane and the rear surface of base plate, be provided with elastic washer, to improve air-tightness.
Preferably, put outward and offer ventilating structure, such as deleting hole, the moisture in steam and impurity in water wetted material can see through moisture permeable membrane and ventilating structure evaporate in atmosphere at leisure.
Brief description of the drawings
The structural representation of a kind of embodiment of Fig. 1 steam filter of the present invention.
In figure, each label example is as follows:
1-inner bag, 2-air flue, 2-1-air flue gas outlet, the little cavity of 3-, 4-female Luer, 5-moisture permeable membrane, 6-water wetted material, 7-filter membrane, 8-elastic washer, 9-skeleton structure, 9-1-front end framework, 9-2-indulges skeleton, 9-3-rear end skeleton, 9-4-short cylinder, 10-projection, 11-overcoat, 12-base plate, 13-escape pipe, 14-grid hole, the little opening of 15-.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the structural representation of a kind of embodiment of steam filter of the present invention.This steam filter includes inner bag 1 and overcoat 11, between inner bag 1 and overcoat 11, be fixed with filter membrane 7, and the shape of the shape of inner bag 1 and size and overcoat 11 and size are suitable, and (in the present embodiment, inner bag is cylinder, the inner chamber of overcoat is cylinder, but inner bag and overcoat are not limited to cylindrical shape, can also be prismatic etc., as long as both can mate mutually); Steam filter also includes syndeton, makes filter membrane 7 that the rear surface of the base plate of the front end face of inner bag 1 and overcoat 11 is isolated, only allows that dry gas is passed through by filter membrane 7 by fixing inner bag 1 and the relative position of overcoat 11 and then the position of fixing filter membrane 7.Particularly, inner bag 1 is cylindrical shape, offer air flue 2 along cylindrical longitudinally (axially) in cylindrical center, air flue 2 comprises the gas outlet 2-1 that is positioned at inner bag front end and the air inlet that is positioned at inner bag rear end, the air inlet of inner bag rear end is connected with female Luer 4, is generally Rule female joint, is convenient to steam filter and is connected with sampling pipe (certainly, according to actual needs, the air inlet of air flue can also be connected with other bindiny mechanism).Inner bag 1 offers 4 loculus bodies 3 for holding water wetted material 6 around air flue 2, the front end of loculus body 3 is openend, the rear end of loculus body 3 is blind end, on chamber, the inner side wall of each loculus body 3, all offer the small through hole that several lead to air flue 2 inner chambers, the stage casing of chamber, the outside wall of loculus body 3 is opening, water wetted material 6 in the present embodiment is 4 water absorbent cotton cores, insert in loculus body 3 from the front opening end of loculus body 3 respectively, and water absorbent cotton core can outwards volatilize the moisture in water absorbent cotton core by the opening of loculus body 3, to extend the service life of steam filter.Because chamber, the outside wall of loculus body 3 is opening, open architecture and the skeleton structure of the lateral wall of inner bag 1 are formed, open architecture is the depression that opening forms, or two openings depression forming that is connected, skeleton structure is wherein remaining structure after opening, comprise be positioned at inner bag 1 front end along the circumferential front end framework 9-1 of inner bag lateral wall, be positioned at inner bag rear end along the circumferential rear end skeleton 9-3 of inner bag lateral wall, and be positioned at inner bag stage casing along the longitudinal vertical skeleton 9-2 of inner bag.Moisture permeable membrane 5 is by being fixed in skeleton structure 9 and then sealed packet covers inner bag 1, and it is fixing that here fixing preferably coheres, and can not reveal from the outside of inner bag 1 with the gas that ensures to enter from the air inlet of female Luer 4, air flue 2.
Wherein, syndeton in the present embodiment comprises that from the extended one section of short cylinder 9-4(of inner bag rear side and inner bag be an overall structure), the radius of short cylinder 9-4 is greater than the radius of described rear end skeleton 9-3 and forms a circumferential boss stage structure with respect to rear end skeleton 9-3, on boss stage structure, be provided with projection 10, correspondingly, syndeton is also included in the little opening 15 arranging on the relevant position of overcoat 11, described inner bag 1 inserts after described overcoat 11, and described projection 10 snaps in described little opening 15 to fix the relative position of inner bag 1 and overcoat 11.The circumferential boss rank that short cylinder 9-4 in syndeton and rear end skeleton 9-3 form, also play the effect of location and sealing, and moisture permeable membrane 5 is in the time of coated skeleton structure, and its rear end is stuck on the front end face of boss stage structure, plays the effect of location moisture permeable membrane 5; The front end face of circumferential boss stage structure has played the effect of further sealing to the gap between moisture permeable membrane 5 and rear end skeleton 9-3 in addition, and gas can not be from the gap leakage between moisture permeable membrane 5 and rear end skeleton 9-3.Certainly, can also select other buckle structure as syndeton, or select the syndeton of other type.
Preferably, the difference of the radius of the radius of described short cylinder 9-4 and described rear end skeleton 9-3 equals to be coated on the thickness of the moisture permeable membrane 5 in described skeleton structure 9.The skeleton structure that is coated with moisture permeable membrane 5 is equated with the radius of short cylinder 9-4, when inner bag 1 inserts after overcoat 11, moisture permeable membrane 5 in skeleton structure can with overcoat internal chamber wall close contact, by pressing of overcoat internal chamber wall, further ensured the sealing of moisture permeable membrane 5 to inner bag 1.
Preferably, the front end face of water wetted material 6 is positioned on the front end face of loculus body 3,2-1Chu chamber, the air flue gas outlet wall of air flue 2 will be to inner bag 1 rear end indentation, in the case of not having the stopping of chamber wall, if have steam or moisture impurity at 2-1 place, air flue gas outlet, the steam at 2-1 place, air flue gas outlet and moisture impurity more easily contact with water wetted material 6, and enter in water wetted material 6 and then in the interior diffusion storage of water wetted material 6, further prevent that moisture from stopping up filter membrane 7, and effectively ensured the dry of filter membrane 7.
The inner chamber of overcoat 11 is cylinder, the front end of overcoat 11 is the base plate 12 fixing with the sealing of venthole, the rear end of overcoat 11 is open end, inner bag 1 inserts in overcoat 11 by the rear end of overcoat 11, fix the relative position of inner bag 1 and overcoat 11 by syndeton, and by the front end face of inner bag 1 and the rear surface press filtration film 7 of base plate 12, filter membrane 7 is fixed between the front end face of inner bag and the rear surface of base plate, by the space isolation before and after filter membrane, only there is dry gas to pass through.On the position corresponding to inner bag 1 stage casing of overcoat 11, offer ventilating structure, such as grid hole 14, steam in inlet chamber that moisture permeable membrane 5, filter membrane 7 encircle a city and the moisture in impurity can be evaporate in atmosphere by the opening of water wetted material 6, loculus body 3, moisture permeable membrane 5, grid hole 14, just Reusability for a long time of filter, can not stop up because of the existence of moisture filter membrane 7 like this.
Preferably, between filter membrane 7 and the rear surface of base plate 12, be provided with elastic washer, to improve between the base plate 12 of filter membrane 7 and overcoat, the air-tightness between filter membrane 7 and the front end face of inner bag.
When use, female Luer 4 is connected with sampling pipe, the gas sample of breathing out enters the air inlet of air flue from female Luer 4, and move towards the gas outlet 2-1 of air flue from the air inlet of air flue, in the process moving at gas, the steam that gas contains and moisture impurity are absorbed by water wetted material 6 by the small through hole between air flue inner chamber and loculus body 3, if also have the moisture residue in part steam or impurity, indentation space at air flue 2 front ends is sucked by the front end of water wetted material 6, only there is dry gas just pass and discharge also and then enter gas analyzer from venthole and the escape pipe 13 of base plate from filter membrane 7.Visible, steam filtration device structure of the present invention is simple, cheap, easy to install, can effectively remove steam and moisture impurity in breath, to extend the service life of gas analyzer; Gas passage is linear simultaneously, almost there is no dead angle in structure, and gas dead space is little, can affect hardly the real-time measurement curve of gas sample, and not need a large amount of samplings.
Wherein, loculus body 3 in steam filter is not limited to above-mentioned structure, it can also be the little cavity of other quantity of offering around air flue 2, can also be to be annular cavity etc. around the cross section of air flue 2, in cavity for holding water wetted material 6 temporarily to store steam and the moisture impurity of breath.Preferably, the front end face of cavity is that openend is for inserting water wetted material, the rear end face of cavity is blind end, chamber, the inner side wall of cavity is connected by small through hole with air flue inner chamber, moisture in breath is absorbed by water wetted material by small through hole, chamber, the outside wall of cavity is opening, and the moisture in water wetted material is volatilized away by moisture permeable membrane 5.In the time that the steam in water wetted material is too much or impurity is too much, can reach by changing water wetted material 6 object of Reusability.
Water wetted material 6 wherein can, for having hydrophilic water absorbent cotton core, can also be other the hydrophilic material that has, as long as can possess the moisture storing in steam and impurity.
Moisture permeable membrane 5 wherein refers to can be permeable but air-locked film, such as: taking polyurethanes (TPU) as main material, the moisture permeable membrane of importing hydrophilic group, its film surface pore-free, therefore airtight; But film has hydrophilic group, conduct by moisture absorption, thereby there is the function of moisture-inhibiting.And filter membrane 7 wherein refers to and can breathe freely but fluid-tight film, such as: polytetrafluoroethylene PTFE or PET PET filter membrane, in order to the water in filtering breath sample and other pollutants.
The grid hole 14 of overcoat 11 wherein can replace with other ventilating structure, such as: some air-vents.
In addition, steam filter provided by the invention can be connected with gas analyzer by connector, for matching connector, the structure of the forward part of overcoat 11 is designed to: base plate 12 is to the rear end indentation of overcoat 11, the front side of the venthole of overcoat 11 is fixedly connected with an escape pipe 13, and the axially parallel of escape pipe 13 is axial in overcoat.
Claims (23)
1. a steam filter, is characterized in that, comprise inner bag and with the suitable overcoat of shape, the size of described inner bag, also comprise the syndeton for fixing described inner bag and described overcoat relative position, described inner bag inside includes runs through its longitudinal air flue, described air flue comprises the air inlet that is positioned at inner bag rear end and the gas outlet that is positioned at inner bag front end, described inner bag also comprises the cavity for holding water wetted material, with the water wetted material that is positioned at described cavity, the lateral wall of described inner bag is sealed and coated with moisture permeable membrane, wherein, on the chamber wall of described cavity, being provided with opening can communicate with moisture permeable membrane the water wetted material in cavity, the forward end seal of described overcoat is fixed with the base plate with venthole, the rear end of described overcoat is openend, described inner bag is from described overcoat openend inserts overcoat inner chamber, between the front end face of described inner bag and the rear surface of base plate, be fixed with can cover inner bag front end face and by the filter membrane of isolating between inner bag front end face and base plate rear surface, described moisture permeable membrane is airtight but permeable film, described filter membrane is ventilative but fluid-tight film.
2. steam filter according to claim 1, is characterized in that, described cavity is positioned at described air flue around, and is connected by one or several through holes between described air flue inner chamber and described inside cavity.
3. steam filter according to claim 2, it is characterized in that, described inner bag is cylinder, described air flue is positioned at described cylindrical center, described cavity is to be positioned at described air flue several little cavitys along inner bag length direction around, the front end of described little cavity is openend, the rear end of described little cavity is blind end, chamber, the inner side wall of described little cavity offers the some small through hole that lead to air flue inner chamber, the interlude of chamber, the outside wall of described little cavity is described opening, correspondingly, the lateral wall of described inner bag comprises open architecture and the remaining skeleton structure of the depression being formed by described opening, described skeleton structure comprise be positioned at inner bag front end along the circumferential front end framework of inner bag lateral wall, be positioned at inner bag rear end along the circumferential rear end skeleton of inner bag lateral wall and be positioned at inner bag stage casing along the longitudinal vertical skeleton of inner bag, described moisture permeable membrane is by being fixed in skeleton structure to ensure the coated described inner bag of sealing.
4. steam filter according to claim 3, is characterized in that, the cross-sectional area of described air flue is less than the cross-sectional area of described little cavity; Or the front end face of described water wetted material is positioned on the front end face of described little cavity.
5. steam filter according to claim 4, is characterized in that, the front end face of described air flue is positioned at the rear side of described inner bag front end face, and the front end face of described little cavity is positioned on the front end face of described inner bag.
6. according to the steam filter one of claim 1-5 Suo Shu, it is characterized in that, between described filter membrane and the rear surface of described base plate, be provided with elastic washer.
7. according to the steam filter one of claim 1-5 Suo Shu, it is characterized in that, on the aperture position of the cavity corresponding to inner bag of described overcoat, offer ventilating structure.
8. steam filter according to claim 6, is characterized in that, on the aperture position of the cavity corresponding to inner bag of described overcoat, offers ventilating structure.
9. according to one of claim 1-5 or the steam filter described in 8, it is characterized in that, described base plate is positioned at the rear side of the front end face of described overcoat, and described overcoat also comprises that one is positioned at the escape pipe of described base plate front side, and one end of described escape pipe is fixedly communicated with the venthole of described base plate.
10. steam filter according to claim 6, it is characterized in that, described base plate is positioned at the rear side of the front end face of described overcoat, and described overcoat also comprises that one is positioned at the escape pipe of described base plate front side, and one end of described escape pipe is fixedly communicated with the venthole of described base plate.
11. steam filters according to claim 7, it is characterized in that, described base plate is positioned at the rear side of the front end face of described overcoat, and described overcoat also comprises that one is positioned at the escape pipe of described base plate front side, and one end of described escape pipe is fixedly communicated with the venthole of described base plate.
12. according to the steam filter described in one of claim 3-5 or 8 or 10 or 11, it is characterized in that, described syndeton comprises from the extended one section of short cylinder of inner bag rear side, the radius of described short cylinder is greater than the radius of described rear end skeleton and forms a circumferential boss stage structure with respect to rear end skeleton, on described boss stage structure, be provided with projection, correspondingly, described syndeton is also included in the little opening arranging on the relevant position of described overcoat, described inner bag inserts after described overcoat, described projection snaps in described little opening to fix the relative position of inner bag and overcoat.
13. steam filters according to claim 6, it is characterized in that, described syndeton comprises from the extended one section of short cylinder of inner bag rear side, the radius of described short cylinder is greater than the radius of described rear end skeleton and forms a circumferential boss stage structure with respect to rear end skeleton, on described boss stage structure, be provided with projection, correspondingly, described syndeton is also included in the little opening arranging on the relevant position of described overcoat, described inner bag inserts after described overcoat, and described projection snaps in described little opening to fix the relative position of inner bag and overcoat.
14. steam filters according to claim 7, it is characterized in that, described syndeton comprises from the extended one section of short cylinder of inner bag rear side, the radius of described short cylinder is greater than the radius of described rear end skeleton and forms a circumferential boss stage structure with respect to rear end skeleton, on described boss stage structure, be provided with projection, correspondingly, described syndeton is also included in the little opening arranging on the relevant position of described overcoat, described inner bag inserts after described overcoat, and described projection snaps in described little opening to fix the relative position of inner bag and overcoat.
15. steam filters according to claim 9, it is characterized in that, described syndeton comprises from the extended one section of short cylinder of inner bag rear side, the radius of described short cylinder is greater than the radius of described rear end skeleton and forms a circumferential boss stage structure with respect to rear end skeleton, on described boss stage structure, be provided with projection, correspondingly, described syndeton is also included in the little opening arranging on the relevant position of described overcoat, described inner bag inserts after described overcoat, and described projection snaps in described little opening to fix the relative position of inner bag and overcoat.
16. steam filters according to claim 12, is characterized in that, the difference of the radius of the radius of described short cylinder and described rear end skeleton equals to be coated on the thickness of the moisture permeable membrane on described skeleton.
17. according to the steam filter one of claim 13-15 Suo Shu, it is characterized in that, the difference of the radius of the radius of described short cylinder and described rear end skeleton equals to be coated on the thickness of the moisture permeable membrane on described skeleton.
18. according to one of claim 1-5 or 8 or 10 or 11 or the described steam filter of one of 13-16, it is characterized in that, the air inlet place of the air flue of described inner bag is fixedly connected with female Luer.
19. steam filters according to claim 6, is characterized in that, the air inlet place of the air flue of described inner bag is fixedly connected with female Luer.
20. steam filters according to claim 7, is characterized in that, the air inlet place of the air flue of described inner bag is fixedly connected with female Luer.
21. steam filters according to claim 9, is characterized in that, the air inlet place of the air flue of described inner bag is fixedly connected with female Luer.
22. steam filters according to claim 12, is characterized in that, the air inlet place of the air flue of described inner bag is fixedly connected with female Luer.
23. steam filters according to claim 17, is characterized in that, the air inlet place of the air flue of described inner bag is fixedly connected with female Luer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210165113.8A CN102698571B (en) | 2012-05-24 | 2012-05-24 | Moisture filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210165113.8A CN102698571B (en) | 2012-05-24 | 2012-05-24 | Moisture filter |
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| CN102698571A CN102698571A (en) | 2012-10-03 |
| CN102698571B true CN102698571B (en) | 2014-07-02 |
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| CN103895839B (en) * | 2014-03-11 | 2017-01-04 | 中国人民解放军海军医学研究所 | Aqualung gas and water separator |
| DE102014214347B3 (en) * | 2014-07-23 | 2015-09-10 | BSH Hausgeräte GmbH | household appliance |
| CN106215293A (en) * | 2016-09-07 | 2016-12-14 | 深圳永胜宏基医疗器械有限公司 | A kind of gas-tight water permeable device and mechanical ventilation system |
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| DE3716350A1 (en) * | 1987-05-15 | 1988-12-01 | Groeger & Obst Mess Regeltech | METHOD AND DEVICE FOR TREATING A GAS TO BE ANALYZED |
| CN102350161B (en) * | 2011-07-21 | 2013-07-10 | 青岛海纳光电环保有限公司 | Efficient gas-water separator |
| CN202762281U (en) * | 2012-05-24 | 2013-03-06 | 北京金嘉信商贸有限公司 | Water vapor filter |
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