CN203400367U - Precision infusion apparatus capable of automatically stopping liquid and preventing bubbles - Google Patents

Precision infusion apparatus capable of automatically stopping liquid and preventing bubbles Download PDF

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Publication number
CN203400367U
CN203400367U CN201320455268.5U CN201320455268U CN203400367U CN 203400367 U CN203400367 U CN 203400367U CN 201320455268 U CN201320455268 U CN 201320455268U CN 203400367 U CN203400367 U CN 203400367U
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CN
China
Prior art keywords
liquid
transfusion
stopping
dropping
dropping funnel
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Expired - Fee Related
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CN201320455268.5U
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Chinese (zh)
Inventor
钭祖青
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JIANGXI LIHUA XINLANG PHARMACEUTICAL TECHNOLOGY Co Ltd
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JIANGXI LIHUA XINLANG PHARMACEUTICAL TECHNOLOGY Co Ltd
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Priority to CN201320455268.5U priority Critical patent/CN203400367U/en
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Publication of CN203400367U publication Critical patent/CN203400367U/en
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Abstract

The utility mode discloses a precision infusion apparatus capable of automatically stopping liquid and preventing bubbles. The precision infusion apparatus comprises an infusion tube, a flow regulator, a puncture outfit, a dripping hopper, a Luer and an infusion needle. A flow guide tube used for preventing dripping liquid from falling and forming bubbles is arranged in the dripping hopper and provided with a bubble prevention valve, an automatic liquid stopping layer is arranged in the dripping hopper, and liquid is automatically stopped through a precision filtering membrane. In an infusion process, the dripping liquid is prevented from forming the bubbles in the dripping hopper, when all the dripping liquid drips, the liquid can be automatically stopped through hydrophilia of the precision filtering membrane, undesirable phenomena such as blood returning are prevented from occurring through an anti-reflux valve, and safety of an infusion process is guaranteed.

Description

A kind of precision automatic liquid stopping function bubble-proof transfusion device
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of precision automatic liquid stopping function bubble-proof transfusion device.
Background technology
At present, the medical disposable infusion set for transfusion, after being totally lost as medicinal liquid in when transfusion, blood can produce refluence, 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.In these variation Ke body tissue, especially lungs, occur.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 is also more and more subject to people's attention.
Utility model content
This utility model, in order to solve the above-mentioned deficiency of prior art, has proposed a kind of precision automatic liquid stopping function bubble-proof 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 precision automatic liquid stopping function bubble-proof 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, the outlet of described dropping funnel protrudes upward a mozzle, and described mozzle tube wall is provided with a pair of opening flowing into for dropping liquid; On the mouth of pipe of described mozzle, be stamped an Anti-bubble valve, described Anti-bubble valve comprises: a Guan Gai and stretch out coupling from Guan Gai bottom and insert the valve body in described mozzle, described valve body valve wall is provided with a pair of hook corresponding to described opening.
In one embodiment, the top of described mozzle is provided with the auto-stopping liquid layer being laterally fixed on dropping funnel inwall, and this auto-stopping liquid layer is by superimposed being integrally formed of multilamellar secondary filter film; Described secondary filter film has hydrophilic, and film surface distributed a plurality of micropores, secondary filter film contact dropping liquid, and micropore opens, and dropping liquid sees through auto-stopping liquid layer; Secondary filter film departs from dropping liquid, and micropore is closed, and isolated air passes through, and the dropping funnel cavity of auto-stopping liquid layer below forms negative pressure, stops transfusion.
The upper end of described dropping funnel is also provided with an exhaustor, and described exhaustor is with pipe cap.
The below of described dropping funnel is also provided with the valve for preventing reverse-flow of a duckbill.
Compared with prior art, the mozzle of this utility model setting and Anti-bubble valve are worked as dropping liquid and are entered in dropping funnel, Anti-bubble valve upwards hikes up and allows dropping liquid opening from the side enter mozzle, infuse again, prevented that in dropping liquid process, in dropping funnel, forming bubble causes harmful effect, and utilized the hydrophilic of secondary filter film, dropping liquid height in dropping funnel is during higher than auto-stopping liquid layer, micropore on accurate overanxious film all opens, and dropping liquid sees through auto-stopping liquid layer, infuses; When dropping liquid height is during lower than auto-stopping liquid layer, dropping liquid departs from secondary filter film, and the micropore of secondary filter film is closed automatically, prevents that air from entering, and dropping liquid just can not continue dirty, stops infusing; The anti-backflow device that is arranged on female Luer has further prevented the backflow in tube for transfusion of dropping liquid, has prevented from occurring in infusion process blood back phenomenon.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A enlarged drawing of the present utility model;
Fig. 3 is the installation diagram of mozzle of the present utility model and Anti-bubble valve.
The specific embodiment
Below in conjunction with drawings and Examples, utility model is described in detail.
As shown in Figure 1, the precision automatic liquid stopping function blood return preventing infusion 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, outlet in dropping funnel 4 protrudes upward a mozzle 7, mozzle 7 tube walls are provided with the opening 71 that a row flows into for dropping liquid, on the mouth of pipe of mozzle 7, be stamped an Anti-bubble valve 8, Anti-bubble valve comprises that pipe cover 81 and from pipe, cover 81 bottoms and stretch out the valve body 82 mating in insertion mozzle 7, valve body 82 valve walls are provided with a pair of hook 83 corresponding to described opening 71.
The top of mozzle 7 is also provided with the auto-stopping liquid layer 9 being laterally fixed on dropping funnel 4 inwalls, and this auto-stopping liquid layer 9 is by superimposed being integrally formed of multilamellar secondary filter film; The upper end of dropping funnel 4 is also provided with an exhaustor 10, and exhaustor is with pipe cap.
During concrete transfusion, dropping liquid flows and presses down air, and due to back-pressure effect, air flows out by exhaustor 10, 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, has liberated manpower, has saved the time.
The dirty dropping funnel 4 that enters into of dropping liquid, by, be dropped on auto-stopping liquid layer 9, auto-stopping liquid layer 9 contact dropping liquids, so the micropore on secondary filter film opens, allow dropping liquid pass through, in normal infusion process, dropping liquid floods Anti-bubble valve 8, because pipe cap 81 is subject to buoyancy, upwards pulls valve body 82, finally link up with 83 barbs on opening 71, dropping liquid just passes through from the opening 71 of mozzle 7, and the dropping liquid height in dropping funnel is higher than auto-stopping liquid layer, and the micropore on secondary filter film all opens and infuses always; When transfusion slowly finishes, dropping liquid height in dropping funnel falls until during lower than auto-stopping liquid layer, dropping liquid departs from secondary filter film, the micropore of secondary filter film is closed automatically, prevent that air from entering, auto-stopping liquid layer below dropping funnel cavity forms a negative pressure like this, and dropping liquid just can not continue dirty, has accomplished automatic termination transfusion; Anti-bubble valve 8, when dropping funnel 4 dropping liquids fall, also can have been realized valve-closing action because of gravity.
In this utility model, auto-stopping liquid layer 8 is by the design of the secondary filter film of multilamellar, greatly improve medicinal liquid purity, effectively prevent that monolayer secondary filter film transfusion device from holding susceptible to plugging problem at injection such as infusion Chinese patent medicine, fat milks, two-layer filter membrane is overlapping, dwindle filter area, improved the effect of filtering.
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 (4)

1. a precision automatic liquid stopping function bubble-proof 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: the outlet of described dropping funnel (4) protrudes upward a mozzle (7), described mozzle (7) tube wall is provided with a pair of opening (71) flowing into for dropping liquid; On the mouth of pipe of described mozzle (7), be stamped an Anti-bubble valve (8), described Anti-bubble valve comprises: a pipe covers (81) and from Guan Gai (81) bottom, stretches out coupling and insert the valve body (82) in described mozzle (7), and described valve body (82) valve wall is provided with a pair of hook (83) corresponding to described opening (71).
2. precision automatic liquid stopping function bubble-proof transfusion device as claimed in claim 1, it is characterized in that: the top of described mozzle (7) is provided with the auto-stopping liquid layer (9) being laterally fixed on dropping funnel (4) inwall, and this auto-stopping liquid layer is by superimposed being integrally formed of multilamellar secondary filter film; Described secondary filter film has hydrophilic, and film surface distributed a plurality of micropores, secondary filter film contact dropping liquid, and micropore opens, and dropping liquid sees through automatic liquid-stopping (9) layer; Secondary filter film departs from dropping liquid, and micropore is closed, and isolated air passes through, and the dropping funnel cavity of auto-stopping liquid layer (9) below forms negative pressure, stops transfusion.
3. precision automatic liquid stopping function bubble-proof transfusion device as claimed in claim 1, is characterized in that: the upper end of described dropping funnel (4) is also provided with an exhaustor (10), and described exhaustor is with pipe cap.
4. precision automatic liquid stopping function bubble-proof transfusion device as claimed in claim 1, is characterized in that: the below of described dropping funnel (4) is also provided with the valve for preventing reverse-flow (11) of a duckbill.
CN201320455268.5U 2013-07-29 2013-07-29 Precision infusion apparatus capable of automatically stopping liquid and preventing bubbles Expired - Fee Related CN203400367U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320455268.5U CN203400367U (en) 2013-07-29 2013-07-29 Precision infusion apparatus capable of automatically stopping liquid and preventing bubbles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320455268.5U CN203400367U (en) 2013-07-29 2013-07-29 Precision infusion apparatus capable of automatically stopping liquid and preventing bubbles

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117118A (en) * 2014-07-02 2014-10-29 广东工业大学 Disposable membrane type automatic stopping and liquid residue preventing infusion set
CN104274886A (en) * 2013-07-29 2015-01-14 江西丽华鑫朗药业科技有限公司 Precise automatic liquid-stopping air-bubble-proof infusion device
CN104436359A (en) * 2014-12-27 2015-03-25 贵州师范大学 Infusion set capable of stopping automatically

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104274886A (en) * 2013-07-29 2015-01-14 江西丽华鑫朗药业科技有限公司 Precise automatic liquid-stopping air-bubble-proof infusion device
CN104117118A (en) * 2014-07-02 2014-10-29 广东工业大学 Disposable membrane type automatic stopping and liquid residue preventing infusion set
CN104436359A (en) * 2014-12-27 2015-03-25 贵州师范大学 Infusion set capable of stopping automatically

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140122

Termination date: 20140729

EXPY Termination of patent right or utility model