CN203303421U - Double-layer precise automatic liquid-stop infusion apparatus - Google Patents
Double-layer precise automatic liquid-stop infusion apparatus Download PDFInfo
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- CN203303421U CN203303421U CN2013203277873U CN201320327787U CN203303421U CN 203303421 U CN203303421 U CN 203303421U CN 2013203277873 U CN2013203277873 U CN 2013203277873U CN 201320327787 U CN201320327787 U CN 201320327787U CN 203303421 U CN203303421 U CN 203303421U
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Abstract
The utility model discloses a double-layer precise automatic liquid-stop infusion apparatus, comprising an infusion tube, a flow regulator, puncture outfit, a drip chamber, a Luer joint and a transfusion needle, wherein the infusion tube is provided with an automatic liquid stop device which comprises a liquid stop member and a double-layer filtering membrane with hydrophilia; the double-layer filtering membrane allows dropping liquid to pass when contacting the dropping liquid and stops air from passing when leaving the dropping liquid. With the double-layer precise automatic liquid-stop infusion apparatus, when no dropping liquid for infusion is left, the liquid can be stopped automatically via the hydrophilia of the double-layer filtering membrane, a reflux valve can avoid undesirable phenomena such as blood return, thus ensuring safety during infusion.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of double-deck precision automatic liquid stopping function transfusion device.
Background technology
At present, medical disposable infusion set for transfusion, blood can produce refluence after when transfusion such as medicinal liquid are totally lost, while changing bottle not aerofluxus dangerous, but drain gas very trouble.Some transfusion device is equipped with the self-closing valve of all styles of at dropping funnel mouth place, although medicinal liquid can be closed guarantor's liquid after being totally lost automatically, change bottle and open valve difficulty, troublesome poeration.Blood capillary diameter in human body on average only has 7 μ m～9 μ m, and that minimum is 4 μ m.If often transfusion, in medicinal liquid, diameter will be accumulated in the blood capillaries such as the heart, liver, lung, brain, kidney, muscle, skin over the microgranule of 4 μ m.Larger microgranule can directly cause capillary embolism, causes local blood supply insufficiency, histanoxia and causes edema and inflammation.Less microgranule may be eaten by macrophage, causes macrophage to increase, and forms granuloma.These variations can, in body tissue, especially occur in lungs.In addition, microgranule also can directly cause exothermic reaction.In infusion process, infusion reaction happens occasionally at present, and except germ contamination reaction, pyrogen reaction, the particle contamination reaction that particulate matter causes also more and more is subject to people's attention.
The utility model content
This utility model, in order to solve the above-mentioned deficiency of prior art, has proposed a kind of double-deck precision automatic liquid stopping function transfusion device.
In order to solve the problems of the technologies described above, this utility model is by the following technical solutions: a kind of double-deck precision automatic liquid stopping function transfusion device, comprise tube for transfusion and be enclosed within the flow regulator on tube for transfusion, on described tube for transfusion, connect and be connected with perforator, dropping funnel, female Luer and transfusion needle, on tube for transfusion, also be provided with an automatic liquid-stopping device, described automatic liquid-stopping device comprises: one only liquid member, the described only inside of liquid member have a cylindrical cavity be communicated with tube for transfusion; With one have hydrophilic double medium filtration film, transverse sealing is connected in the middle part of described cavity.
Described double medium filtration film consists of with the secondary filter film of being located at lower floor is superimposed the coarse filtration film of being located at upper strata, a plurality of gross porositys that distributing on described coarse filtration film, and a plurality of micropores are distributing on described secondary filter film; During described double medium filtration film contact dropping liquid, described gross porosity and micropore open, and allow dropping liquid pass through; When described double medium filtration film breaks away from dropping liquid, described gross porosity and micropore closure, isolated air passes through.
In one embodiment, described automatic liquid-stopping device also comprises the reflux valve of being located at described cavity bottom.
Described only liquid member upper end is provided with one and is communicated with steam vent with cavity, and the top seal of described cavity laminating one breathing waterproof film covers described steam vent.
Compared with prior art, this utility model utilizes the hydrophilic of double medium filtration film, when the dropping liquid in cavity during higher than the height of double medium filtration film, pressure and hydrophilic all open gross porosity on the coarse filtration film of double-deck overanxious film and the micropore on the secondary filter film, when the dropping liquid height during lower than the double medium filtration film, gross porosity and micropore on the double medium filtration film are closed automatically, prevent that air from entering, dropping liquid just can not continue dirty, play automatic liquid-stopping, the nearlyer step of reflux valve arranged has prevented the backflow in tube for transfusion of dropping liquid, has prevented from infusion process occurring the blood back phenomenon.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples, utility model is described in detail.
As shown in Figure 1, the double-deck precision automatic liquid stopping function transfusion device the utility model proposes, comprise tube for transfusion 1 and be enclosed within the flow regulator 2 on tube for transfusion, on tube for transfusion 1, also connect and be connected with perforator 3, dropping funnel 4, female Luer 5 and transfusion needle 6, with traditional technology, compare, technological improvement of the present utility model is to increase and be provided with the automatic liquid-stopping device on tube for transfusion 1, and the automatic liquid-stopping device comprises only liquid member 7, double medium filtration film 9 and reflux valve 10.
Wherein, only the inside of liquid member 7 is cylindrical cavities 8 that are communicated with tube for transfusion 1, and only liquid member 7 upper ends also are provided with one and are communicated with steam vent 11 with cavity 8, and the top seal of cavity 8 is fitted a breathing waterproof film 12 by steam vent 11 coverings.
The double medium filtration film has hydrophilic, transverse sealing connects in the middle part of cavity 8, cavity 8 is divided into to two parts, double medium filtration film 9 consists of with the secondary filter film of being located at lower floor is superimposed the coarse filtration film of being located at upper strata, a plurality of gross porositys that distributing on the coarse filtration film, a plurality of micropores are distributing on the secondary filter film.During double medium filtration film contact dropping liquid, gross porosity and micropore open, and allow dropping liquid pass through; When the double medium filtration film breaks away from dropping liquid, described gross porosity and micropore closure, isolated air passes through.
During specific works, at first during aerofluxus, dropping liquid flows and presses down air, due to the back-pressure effect, air flows out from steam vent 11 by breathing waterproof film 12, has realized automatic vent, without carrying out the loaded down with trivial details work of exhaustor, can not cause the drug contamination of section office, liberate manpower, save the time.
When falling to flowing into, stops in liquid member 7 dropping liquid, dropping liquid drops on double medium filtration film 9, gross porosity and micropore on double medium filtration film 9 open, in normal infusion process, dropping liquid height in cavity 8 is higher than the height of double medium filtration film 9, when transfusion completes, drop height in cavity 8 slowly descends, during lower than the height of double medium filtration film 9, double medium filtration film 9 breaks away from dropping liquid when height, and now gross porosity and micropore are all closed, stop air to pass the double medium filtration film, when also ambient atmosphere formed certain pressure, dropping liquid just can not continue to flow downward, and guaranteed infusion safety.
In this utility model, the structure of the double medium filtration of employing, two-layer filter membrane is overlapping, has dwindled filter area, has improved the effect of filtering.
Breathing waterproof film 12 has prevented that the dropping liquid in cavity 8 from flowing out in steam vent 11.The reflux valve 10 of cavity 8 interior settings, prevented that the dropping liquid in tube for transfusion 1 from refluxing, and stops to occur the blood back phenomenon.
Above-described embodiment has only been expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, this utility model patent and protection domain should be as the criterion with appended claims.
Claims (3)
1. double-deck precision automatic liquid stopping function transfusion device, comprise tube for transfusion (1) and be enclosed within the flow regulator (2) on tube for transfusion, on described tube for transfusion, connect and be connected with perforator (3), dropping funnel (4), female Luer (5) and transfusion needle (6), it is characterized in that: on described tube for transfusion (1), also be provided with an automatic liquid-stopping device, described automatic liquid-stopping device comprises:
One only liquid member (7), the described only inside of liquid member have a cylindrical cavity (8) be communicated with tube for transfusion (1);
With one have hydrophilic double medium filtration film (9), transverse sealing is connected in the middle part of described cavity (8);
Described double medium filtration film (9) consists of with the secondary filter film of being located at lower floor is superimposed the coarse filtration film of being located at upper strata, on described coarse filtration film, distributing and making according to drop contact situation a plurality of gross porositys that open or close action, distributing and making according to drop contact situation a plurality of micropores that open or close action on described secondary filter film.
2. double-deck precision automatic liquid stopping function transfusion device as claimed in claim 1, it is characterized in that: described automatic liquid-stopping device also comprises the reflux valve (10) of being located at described cavity (8) bottom.
3. double-deck precision automatic liquid stopping function transfusion device as claimed in claim 1, it is characterized in that described only liquid member (7) upper end is provided with one and is communicated with steam vent (11) with cavity (8), and the top seal of described cavity (8) laminating one breathing waterproof film (12) covers described steam vent (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203277873U CN203303421U (en) | 2013-06-07 | 2013-06-07 | Double-layer precise automatic liquid-stop infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203277873U CN203303421U (en) | 2013-06-07 | 2013-06-07 | Double-layer precise automatic liquid-stop infusion apparatus |
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| Publication Number | Publication Date |
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| CN203303421U true CN203303421U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203277873U Expired - Fee Related CN203303421U (en) | 2013-06-07 | 2013-06-07 | Double-layer precise automatic liquid-stop infusion apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599581A (en) * | 2013-11-28 | 2014-02-26 | 电白县康尔美生物科技有限公司 | Backflow-preventing precise-filtering infusion apparatus |
| CN104274878A (en) * | 2014-02-18 | 2015-01-14 | 江西丽华鑫朗药业科技有限公司 | Anti-bubble precision film liquid stop infusion set |
| CN108785794A (en) * | 2018-08-06 | 2018-11-13 | 江西丽华鑫朗药业科技有限公司 | A kind of double medium filtration stops liquid Anti-bubble multifunctional transfusion system |
-
2013
- 2013-06-07 CN CN2013203277873U patent/CN203303421U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599581A (en) * | 2013-11-28 | 2014-02-26 | 电白县康尔美生物科技有限公司 | Backflow-preventing precise-filtering infusion apparatus |
| CN103599581B (en) * | 2013-11-28 | 2016-01-20 | 电白县康尔美生物科技有限公司 | A kind of anti-return precision filter infusion set |
| CN104274878A (en) * | 2014-02-18 | 2015-01-14 | 江西丽华鑫朗药业科技有限公司 | Anti-bubble precision film liquid stop infusion set |
| CN108785794A (en) * | 2018-08-06 | 2018-11-13 | 江西丽华鑫朗药业科技有限公司 | A kind of double medium filtration stops liquid Anti-bubble multifunctional transfusion system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140607 |