CN104274877A - Precise automatic liquid-stopping blood-return-proof infusion device - Google Patents
Precise automatic liquid-stopping blood-return-proof infusion device Download PDFInfo
- Publication number
- CN104274877A CN104274877A CN201310321951.4A CN201310321951A CN104274877A CN 104274877 A CN104274877 A CN 104274877A CN 201310321951 A CN201310321951 A CN 201310321951A CN 104274877 A CN104274877 A CN 104274877A
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- CN
- China
- Prior art keywords
- liquid
- stopping
- transfusion
- valve body
- dropping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/38—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M2005/1401—Functional features
- A61M2005/1406—Minimizing backflow along the delivery catheter track
Abstract
The invention discloses a precise automatic liquid-stopping blood-return-proof infusion device which comprises an infusion tube, a flow adjuster, a puncture device, a drip bucket, a Luer taper and an infusion needle, wherein an automatic liquid-stopping valve is arranged in the drip bucket and a precise filtering film is used for automatically stopping liquid. When the liquid is completely infused, the liquid can be automatically stopped under the effect of the hydrophily of the precise filtering film; the negative phenomenon, such as blood return, is avoided by an anti-reflux valve; the safety during the infusion process is ensured.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of precision automatic liquid stopping function blood return preventing infusion device.
Background technology
At present, the medical disposable infusion set for transfusion, when infusing as medicinal liquid be totally lost after blood can produce refluence, when to change bottle, not aerofluxus is dangerous, but drains gas and bother very much.Some transfusion device is equipped with the self-closing valve of all styles of at dropping funnel mouth place, although medicinal liquid can close guarantor's liquid after being totally lost automatically, changes a bottle valve opening difficulty, troublesome poeration.Blood capillary diameter in human body on average only has 7 μm ~ 9 μm, and minimum is 4 μm.If often infused, in medicinal liquid, the microgranule of diameter more than 4 μm will be accumulated in the blood capillaries such as the heart, liver, lung, brain, kidney, muscle, skin.Larger microgranule directly can cause capillary embolism, causes local blood supply insufficiency, histanoxia and cause edema and inflammation.Less microgranule may be eaten by macrophage, causes macrophage to increase, and forms granuloma.These changes in body tissue, especially can occur in lungs.In addition, microgranule also directly can cause exothermic reaction.At present in infusion process, infusion reaction happens occasionally, 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.
Summary of the invention
The present invention, in order to solve the above-mentioned deficiency of prior art, proposes a kind of precision automatic liquid stopping function blood return preventing infusion device.
In order to solve the problems of the technologies described above, the present invention is by the following technical solutions: a kind of precision automatic liquid stopping function blood return preventing infusion device, comprise tube for transfusion and be enclosed within the flow regulator on tube for transfusion, throughly on described tube for transfusion be connected with perforator, dropping funnel, female Luer and transfusion needle, an automatic liquid-stopping valve is provided with in described dropping funnel, described automatic liquid-stopping device comprises: the valve body of a column type, described valve body snap-fit in the bottom of described dropping funnel, and the valve wall of this valve body have the stripe shape opening that a circle circulates for dropping liquid; The bottom of described valve body is also provided with the column type boss coordinating tube for transfusion projection; Be fixed on the upper surface of described valve body with auto-stopping liquid layer, the sealing of described auto-stopping liquid layer, and this auto-stopping liquid layer is integrally formed by multi-layer precise filter membrane is superimposed; Described secondary filter film has hydrophilic, and film surface distributed multiple micropore, secondary filter film contact dropping liquid, and micropore opens, and dropping liquid, through auto-stopping liquid layer, is infused; Secondary filter film departs from dropping liquid, and micropore closes, and isolated air passes through, and the cavity in valve body forms negative pressure, stops transfusion.
In one embodiment, 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.
Described tube for transfusion and dropping funnel adopt inside and outside double-deck material to make, and described internal layer adopts not containing the low absorbability plastics of plasticiser, and outer employing can effectively be kept away except ultraviolet light translucent plastic, and be evacuated between internal layer and skin formation vacuum interlayer.
Compared with prior art, the present invention utilizes the hydrophilic of secondary filter film, and when the dropping liquid height in dropping funnel is higher than automatic liquid-stopping valve, the micropore on accurate overanxious film all opens, and dropping liquid, through auto-stopping liquid layer, is infused; When dropping liquid height is lower than auto-stopping liquid layer, dropping liquid departs from secondary filter film, and the micropore of secondary filter film is closed automatically, prevents air from entering, and dropping liquid just can not continue dirty, stops transfusion; Be arranged on the backflow in tube for transfusion that valve body and valve for preventing reverse-flow further prevent dropping liquid, prevent in infusion process and occur blood back phenomenon.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of valve body of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, invention is described in detail.
As Fig. 1, shown in 2, the precision automatic liquid stopping function blood return preventing infusion device that the present invention proposes, the flow regulator 2 comprising tube for transfusion 1 and be enclosed within tube for transfusion, also throughly on tube for transfusion 1 be connected with perforator 3, dropping funnel 4, female Luer 5 and transfusion needle 6, compared with traditional technology, the present invention improves, automatic liquid-stopping valve is provided with in dropping funnel 4, automatic liquid-stopping valve comprises valve body 7 and auto-stopping liquid layer 8, valve body 7 is arranged on the bottom in dropping funnel 4, and the valve wall of this valve body 7 has the stripe shape opening 71 that a circle circulates for dropping liquid, the bottom of valve body 7 is also provided with the column type boss 72 coordinating tube for transfusion projection, auto-stopping liquid layer 8 sealing is fixed on the upper surface of valve body 7, and this auto-stopping liquid layer 8 is integrally formed by multi-layer precise filter membrane is superimposed, the below of dropping funnel is also provided with the valve for preventing reverse-flow 10 of a duckbill.The upper end of dropping funnel 4 is also provided with an exhaustor 9, and exhaustor is with pipe cap.
During concrete transfusion, during aerofluxus, dropping liquid flowing presses down air, and due to back-pressure effect, air is flowed out by exhaustor, achieves automatic vent, without the need to being exhausted pipe tedious work, can not cause the drug contamination of section office, having liberated manpower, save the time.
Dropping liquid is dirty enters into dropping funnel 4, concentrated water conservancy diversion is flowed out from strip gab 71 by valve body 7, now auto-stopping liquid layer 8 contacts dropping liquid, so the micropore on secondary filter film opens, dropping liquid is allowed to pass through, in normal infusion process, the dropping liquid height in dropping funnel is higher than auto-stopping liquid layer, and the micropore on secondary filter film all opens always infuses; At the end of transfusion slowly, dropping liquid height in dropping funnel fall until lower than auto-stopping liquid layer time, dropping liquid departs from secondary filter film, the micropore of secondary filter film is closed automatically, prevent air from entering, below such valve body, dropping funnel cavity forms a negative pressure, and dropping liquid just can not continue dirty, has accomplished automatic termination transfusion; And when encountering the phenomenon of dropping liquid backflow, the boss 72 in valve body and valve for preventing reverse-flow 10 prevent the backflow of dropping liquid, have thoroughly stopped blood back phenomenon.
In the present invention, auto-stopping liquid layer 8 is by the design of the secondary filter film of multilamellar, greatly improve medicinal liquid purity, effectively prevent 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, reduce filter area, improve the effect of filtration.
Tube for transfusion 1 and dropping funnel 4 adopt inside and outside double-deck material to make, and internal layer is made up of the low adsorption plastic not containing plasticiser, effectively prevents the noxious substances such as plasticiser to the infringement of human body, reduces drug adsorption, is conducive to patient health and infusion safety.Outer employing can effectively be kept away except ultraviolet light translucent plastic is made, effectively can meet the light-shading effect of pharmaceutical requirements, avoid the free molecule of toner that has in outermost layer plastics to enter in innermost layer, cause in use again free entering in dropping liquid to bring injury to human body.Be evacuated between internal layer and skin formation vacuum interlayer, and vacuum interlayer has effect that is heat insulation, constant temperature, improves the stability of transfusion.
Above-described embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, patent of the present invention and protection domain should be as the criterion with appended claims.
Claims (4)
1. a precision automatic liquid stopping function blood return preventing infusion device, comprise tube for transfusion (1) and be enclosed within the flow regulator (2) on tube for transfusion, throughly on described tube for transfusion be connected with perforator (3), dropping funnel (4), female Luer (5) and transfusion needle (6), it is characterized in that: be provided with an automatic liquid-stopping valve in described dropping funnel (4), described automatic liquid-stopping valve comprises:
The valve body (7) of one column type, described valve body snap-fit in the bottom of described dropping funnel (4), and the valve wall of this valve body (7) have the stripe shape opening (71) that a circle circulates for dropping liquid; The bottom of described valve body (7) is also provided with the round boss (72) coordinating tube for transfusion projection;
Be fixed on the upper surface of described valve body (7) with auto-stopping liquid layer (8), described auto-stopping liquid layer (8) sealing, and this auto-stopping liquid layer (8) is integrally formed by multi-layer precise filter membrane is superimposed;
Described secondary filter film has hydrophilic, and film surface distributed multiple micropore, secondary filter film contact dropping liquid, and micropore opens, and dropping liquid, through auto-stopping liquid layer (8), is infused; Secondary filter film departs from dropping liquid, and micropore closes, and isolated air passes through, and the cavity in valve body (7) forms negative pressure, stops transfusion.
2. precision automatic liquid stopping function blood return preventing infusion device as claimed in claim 1, is characterized in that: the upper end of described dropping funnel (4) is also provided with an exhaustor (9), and described exhaustor is with pipe cap.
3. double-deck precision automatic liquid stopping function 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 (10) of a duckbill.
4. double-deck precision automatic liquid stopping function transfusion device as claimed in claim 1, it is characterized in that: described tube for transfusion (1) and dropping funnel (4) adopt inside and outside double-deck material to make, described internal layer adopts not containing the low absorbability plastics of plasticiser, outer employing can effectively be kept away except ultraviolet light translucent plastic, and be evacuated between internal layer and skin formation vacuum interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321951.4A CN104274877B (en) | 2013-07-29 | 2013-07-29 | A kind of precision automatic liquid stopping function blood return preventing infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321951.4A CN104274877B (en) | 2013-07-29 | 2013-07-29 | A kind of precision automatic liquid stopping function blood return preventing infusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104274877A true CN104274877A (en) | 2015-01-14 |
| CN104274877B CN104274877B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310321951.4A Active CN104274877B (en) | 2013-07-29 | 2013-07-29 | A kind of precision automatic liquid stopping function blood return preventing infusion device |
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| CN (1) | CN104274877B (en) |
Citations (10)
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|---|---|---|---|---|
| US6261267B1 (en) * | 1998-10-09 | 2001-07-17 | Globe Enterprises, Inc. | Automatic IV shut off valve |
| US20030060779A1 (en) * | 1996-12-18 | 2003-03-27 | Richmond Frank M. | Spikeless connection and drip chamber with valve |
| CN101791444A (en) * | 2010-03-01 | 2010-08-04 | 江西洪达医疗器械集团有限公司 | Safe bubble-free infusion set |
| CN101804226A (en) * | 2010-04-02 | 2010-08-18 | 江西三鑫医疗器械集团有限公司 | Low adsorption multi-layer co-extrusion light proofing infusion apparatus |
| CN201727806U (en) * | 2009-12-24 | 2011-02-02 | 谢世庚 | Precision filtering infusion apparatus capable of automatically stopping infusion |
| CN202620386U (en) * | 2012-03-15 | 2012-12-26 | 魏安 | Anti-blood return medical infusion apparatus capable of realizing automatic air exhausting |
| CN102989058A (en) * | 2012-12-12 | 2013-03-27 | 江西三鑫医疗科技股份有限公司 | Needle point shielding type anti-backflow venous indwelling needle |
| CN202920709U (en) * | 2012-08-31 | 2013-05-08 | 汪贤宗 | Safe dripping device applied to infusion device |
| CN202920736U (en) * | 2012-11-22 | 2013-05-08 | 邹浩然 | Disposable infusion apparatus capable of cutting off liquid automatically |
| CN202933295U (en) * | 2012-11-20 | 2013-05-15 | 江西丰临医疗科技股份有限公司 | Automatic liquid-stopping infusion device |
-
2013
- 2013-07-29 CN CN201310321951.4A patent/CN104274877B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030060779A1 (en) * | 1996-12-18 | 2003-03-27 | Richmond Frank M. | Spikeless connection and drip chamber with valve |
| US6261267B1 (en) * | 1998-10-09 | 2001-07-17 | Globe Enterprises, Inc. | Automatic IV shut off valve |
| CN201727806U (en) * | 2009-12-24 | 2011-02-02 | 谢世庚 | Precision filtering infusion apparatus capable of automatically stopping infusion |
| CN101791444A (en) * | 2010-03-01 | 2010-08-04 | 江西洪达医疗器械集团有限公司 | Safe bubble-free infusion set |
| CN101804226A (en) * | 2010-04-02 | 2010-08-18 | 江西三鑫医疗器械集团有限公司 | Low adsorption multi-layer co-extrusion light proofing infusion apparatus |
| CN202620386U (en) * | 2012-03-15 | 2012-12-26 | 魏安 | Anti-blood return medical infusion apparatus capable of realizing automatic air exhausting |
| CN202920709U (en) * | 2012-08-31 | 2013-05-08 | 汪贤宗 | Safe dripping device applied to infusion device |
| CN202933295U (en) * | 2012-11-20 | 2013-05-15 | 江西丰临医疗科技股份有限公司 | Automatic liquid-stopping infusion device |
| CN202920736U (en) * | 2012-11-22 | 2013-05-08 | 邹浩然 | Disposable infusion apparatus capable of cutting off liquid automatically |
| CN102989058A (en) * | 2012-12-12 | 2013-03-27 | 江西三鑫医疗科技股份有限公司 | Needle point shielding type anti-backflow venous indwelling needle |
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| Publication number | Publication date |
|---|---|
| CN104274877B (en) | 2016-09-07 |
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