CN106492306A - Transfusion device back-flow preventer and its using method - Google Patents
Transfusion device back-flow preventer and its using method Download PDFInfo
- Publication number
- CN106492306A CN106492306A CN201611237844.3A CN201611237844A CN106492306A CN 106492306 A CN106492306 A CN 106492306A CN 201611237844 A CN201611237844 A CN 201611237844A CN 106492306 A CN106492306 A CN 106492306A
- Authority
- CN
- China
- Prior art keywords
- rubber cushion
- lower cover
- transfusion device
- device back
- upper lid
- 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.)
- Pending
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Classifications
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
Abstract
The present invention relates to transfusion device back-flow preventer and its using method, including upper lid, lower cover and rubber cushion, using four double wedge structures inside lower cover, make rubber cushion when being subject to from the punching press of liquid in pipeline, fluid passage can be formed with unidirectional, during backflow, rubber cushion edge is blocked using the annular boss in upper lid, which is made because not having deformation space deform, fluid passage inversely cannot be then formed, so as to realize the function of preventing liquid countercurrent.Only need to be by non-return valve being correctly oriented installed in dropping funnel downstream, injection member upstream, any operation without the need for medical personnel can achieve the function in use, the blood back risk caused in clinical transfusion is reduced because of liquid medicine injection, also greatly reducing the operating pressure of medical personnel, make clinical transfusion treatment more safely, effectively with convenient.
Description
Technical field
The present invention relates to a kind of transfusion device back-flow preventer and its using method, for medical apparatus and instruments infusion apparatus product.
Background technology
Transfusion is widely used in clinic as most basic treatment meanss, in vein puncture, often for patient's
Practical situation, additionally injects some medicinal liquids in transfusion device pipeline, and now the malleation in pipeline can reduce, it is possible to can cause
Blood back, now needs medical personnel's extruding dropping funnel or recovers malleation manually around pressure pipe road, to alleviate blood back problem, such behaviour
Make potential safety hazard can be brought to patient, can also increase the operation difficulty of medical personnel.Also there are now some on the market using unidirectional
Film prevents the device of liquid countercurrent, but which is limited to the quality and service life of film, and actual using effect is simultaneously bad, has
Counterflow-preventing function cannot be realized, had then can hinder following current passage, adversely affect to normal infusion, use clinically
Feedback is also unsatisfactory.Therefore, transfusion device blood return prevention problem is always one, clinical care field problem demanding prompt solution.
Content of the invention
In view of the deficiency that prior art is present, the invention provides a kind of transfusion device back-flow preventer and its using method：
By a resilient rubber cushion being placed in the agent structure of a upper and lower covers combination, make glue using the internal structure of upper and lower covers
Pad can form fluid passage with unidirectional, and during backflow, rubber cushion then cannot form liquid because not having deformation space deform, inversely
Body passage, so that realize the function of liquidproof adverse current.
The present invention is that the affiliated purpose of realization, the technical scheme for being adopted are：Transfusion device back-flow preventer, including Shang Gai, under
Lid and rubber cushion, the upper lid are provided with feed tube at upper center for hollow structure, and the lower cover is hollow structure, lower central
Place is provided with drain pipe, and the upper lid is fastened to form hollow cavity with lower cover, and the rubber cushion is circle, is placed in hollow cavity, on
Lid is internal to be provided with a circle annular boss along wall, is provided with four double wedges, four double wedges annular centered on drain pipe in lower cover
It is equally distributed on lower cover inner bottom surface, the rubber cushion is placed in four between double wedge and annular boss.The inner circle of the annular boss
Distance with diameter greater than the relative double wedge outer of any two.A diameter of 11mm of the rubber cushion, thickness are 0.4mm, and material is different
Penta glue.
The using method of transfusion device back-flow preventer is：During installation, the transfusion device back-flow preventer is assembled in transfusion
Device dropping funnel downstream, medicine-filling device upstream, installation direction are covered in upstream on, and, at downstream, transfusion, medicinal liquid is first by feed tube for lower cover
Hollow cavity is entered, as four double wedges in lower cover support the centre of rubber cushion, during dirty hydraulic pressure press-bending rubber cushion edge makes
Fluid path is formed in cavity body, and down-flowing liquid enters lower cover, then is flowed out by drain pipe；During dosing, there is new liq injection to cause
A small amount of backflow, flexible pipe downstream hydraulic pressure increase, and reduce lower flow liquid hydraulic pressure, and rubber cushion natural resiliency makes which recover original straightened condition,
Rebound annular boss at rubber cushion edge, sealing liquid path, and now withdrawing fluid is kept off by rubber cushion after entering hollow cavity by drain pipe
Firmly, action of gravity makes which flow out from drain pipe again, and in dropping funnel, liquid continues dirty, normal infusion process recovery.
The invention has the beneficial effects as follows：By placing a resilient glue in the agent structure of a upper and lower covers combination
Pad, using four double wedge structures inside lower cover, make rubber cushion be subject to from the punching press of liquid in pipeline when, can be with unidirectional deformation
Fluid passage is formed, and during backflow, rubber cushion edge is blocked using the annular boss in upper lid so as to because not having deformation space become
Shape, inversely cannot then form fluid passage, so as to realize the function of preventing liquid countercurrent.Only need to be by non-return valve being correctly oriented
Dropping funnel downstream, injection member upstream is arranged on, any operation without the need for medical personnel in use can achieve the function, reduce
Blood back risk in clinical transfusion, alleviates the worry of patient and family members, greatly reducing the operating pressure of medical personnel, gram
Taken the bad of prior art, solved a clinical care circle difficult problem urgently to be resolved hurrily always, make clinical transfusion treatment safer,
Effectively and convenient.
Preferred rubber cushion size and material ensure which is being applied to send out when infusion apparatus product clinical transfusion is treated
Wave its best function.
Description of the drawings
Fig. 1 product structure figures of the present invention；
Fig. 2 explosive views of the present invention；
Fig. 3 lower cover front views of the present invention；
Fig. 4 lower cover top views of the present invention；
Fig. 5 following current principle schematics of the present invention；
Fig. 6 counterflow-preventing principle schematics of the present invention；
Fig. 7 present invention uses cooperatively schematic diagram with transfusion device.
Specific embodiment
As shown in Fig. 1-4, transfusion device back-flow preventer 1, including upper lid 1-1, lower cover 1-2 and rubber cushion 1-3, the upper lid
1-1 is hollow structure, is provided with feed tube 1-1-1 at upper center, and the lower cover 1-2 is hollow structure, is provided with lower central
Drain pipe 1-2-1, the upper lid 1-1 and lower cover 1-2 fasten to form hollow cavity 1-4, and the rubber cushion 1-3 is circle, in being placed in
In cavity body 1-4, a circle annular boss 1-1-2 is provided with along wall inside upper lid 1-1, is provided with four double wedge 1-2-2 in lower cover 1-2,
Four double wedge 1-2-2 annulars centered on drain pipe 1-2-1 are equally distributed on lower cover 1-2 inner bottom surfaces, the rubber cushion 1-3
It is placed between four double wedge 1-2-2 and annular boss 1-1-2.
Distance of the inner circle of the annular boss 1-1-2 with diameter greater than the relative double wedge 1-2-2 outers of any two, to ensure
Rubber cushion 1-3 edges have enough spaces to deform downwards.
As the device is treated for infusion apparatus product clinical transfusion, therefore we are according to general transfusion height and medicinal liquid
Pressure when dirty, has carried out many experiments using different size, thickness and material, have selected optimal side according to experimental result is excellent
Case, i.e.,：A diameter of 11mm of rubber cushion 1-3, thickness is 0.4mm, the use of material is isoamyl glue.
The using method of transfusion device back-flow preventer is：As shown in fig. 7, when installing, by the transfusion device back-flow preventer 1
Be assembled in infusion unit titrimeter 2-1 downstreams, medicine-filling device 2-2 upstreams, installation direction be upper lid 1-1 in upstream, lower cover 1-2 is under
Trip.
As seen in figs. 5-6, during transfusion, medicinal liquid first enters hollow cavity 1-4 by feed tube 1-1-1, due in lower cover 1-2
Four double wedge 1-2-2 support the centre of rubber cushion 1-3, dirty hydraulic pressure press-bending rubber cushion 1-3 edges to make to be formed in hollow cavity 1-4
Fluid path, down-flowing liquid enter lower cover 1-2, then are flowed out by drain pipe 1-2-1；During dosing, there is new liq injection to cause a small amount of
Backflow, flexible pipe 2-3 downstreams hydraulic pressure increase, and reduce lower flow liquid hydraulic pressure, and rubber cushion 1-3 natural resiliencies make which recover original flat
State, rubber cushion 1-3 are rebounded at edge annular boss 1-1-2, sealing liquid path, during now withdrawing fluid is by drain pipe 1-2-1 entrance
Blocked by rubber cushion 1-3 after cavity body 1-4, action of gravity makes which flow out from drain pipe 1-2-1 again, and in dropping funnel 2-1, liquid continues
Dirty, normal infusion process is recovered.
Transfusion is widely used in clinic as most basic treatment meanss, in vein puncture, often for patient's
Practical situation, additionally injects some medicinal liquids in transfusion device pipeline, and now the malleation in pipeline can reduce, it is possible to can cause
Blood back, now needs medical personnel's extruding dropping funnel or recovers malleation manually around pressure pipe road, to alleviate blood back problem, such behaviour
Make potential safety hazard can be brought to patient, can also increase the operation difficulty of medical personnel.Also there are now some on the market using unidirectional
Film prevents the device of liquid countercurrent, but which is limited to the quality and service life of film, and actual using effect is simultaneously bad, has
Counterflow-preventing function cannot be realized, had then can hinder following current passage, adversely affect to normal infusion, use clinically
Feedback is also unsatisfactory.Therefore, transfusion device blood return prevention problem is always one, clinical care field problem demanding prompt solution.
The present invention passes through to place a resilient rubber cushion in the agent structure of a upper and lower covers combination, using in lower cover
Four double wedge structures in portion, make rubber cushion when being subject to from the punching press of liquid in pipeline, can form fluid passage with unidirectional,
During backflow, rubber cushion edge is blocked using the annular boss in upper lid so as to because not having deformation space deform, inversely then cannot
Fluid passage is formed, so as to realize the function of preventing liquid countercurrent.Only need to be by non-return valve being correctly oriented under dropping funnel
Trip, injection member upstream, the in use any operation without the need for medical personnel can achieve the function, reduce in clinical transfusion
Blood back risk, alleviates the worry of patient and family members, greatly reducing the operating pressure of medical personnel, overcomes prior art
Bad, solve a clinical care circle difficult problem urgently to be resolved hurrily always, make clinical transfusion treatment more safely, effectively with convenient.
Preferred rubber cushion size and material ensure which is being applied to send out when infusion apparatus product clinical transfusion is treated
Wave its best function.
Claims (5)
1. transfusion device back-flow preventer, the transfusion device back-flow preventer（1）, including upper lid（1-1）, lower cover（1-2）And rubber cushion
（1-3）, the upper lid（1-1）For hollow structure, feed tube at upper center, is provided with（1-1-1）, the lower cover（1-2）For interior sky
Structure, is provided with drain pipe at lower central（1-2-1）, the upper lid（1-1）With lower cover（1-2）Fastening forms hollow cavity（1-
4）, the rubber cushion（1-3）For circle, hollow cavity is placed in（1-4）In, it is characterised in that upper lid（1-1）Inside is provided with one along wall
Circle annular boss（1-1-2）, lower cover（1-2）Four double wedges are inside provided with（1-2-2）, four double wedges（1-2-2）With drain pipe
（1-2-1）Centered on annular be equally distributed on lower cover（1-2）On inner bottom surface, the rubber cushion（1-3）It is placed in four double wedges（1-2-2）
And annular boss（1-1-2）Between.
2. transfusion device back-flow preventer according to claim 1, it is characterised in that：The annular boss（1-1-2）Interior
Circular diameter is more than any two with respect to double wedge（1-2-2）The distance of outer.
3. transfusion device back-flow preventer according to claim 1, it is characterised in that：The rubber cushion（1-3）A diameter of
11mm, thickness are 0.4mm.
4. transfusion device back-flow preventer according to claim 1, it is characterised in that：The rubber cushion（1-3）Material is isoamyl
Glue.
5. the using method of the transfusion device back-flow preventer described in a kind of employing claim 1, it is characterised in that：During installation, will
The transfusion device back-flow preventer（1）It is assembled in infusion unit titrimeter（2-1）Downstream, medicine-filling device（2-2）Upstream, installation direction is
Upper lid（1-1）In upstream, lower cover（1-2）At downstream, transfusion, medicinal liquid is first by feed tube（1-1-1）Enter hollow cavity（1-
4）, due to lower cover（1-2）Four interior double wedges（1-2-2）Support rubber cushion（1-3）Centre, dirty hydraulic pressure press-bending rubber cushion
（1-3）Edge makes hollow cavity（1-4）Middle formation fluid path, down-flowing liquid enter lower cover（1-2）, then by drain pipe（1-2-
1）Flow out；During dosing, there is new liq injection to cause a small amount of backflow, flexible pipe（2-3）Downstream hydraulic pressure increase, subtracts lower flow liquid hydraulic pressure
Little, rubber cushion（1-3）Natural resiliency makes which recover original straightened condition, rubber cushion（1-3）Rebound annular boss at edge（1-1-2）, envelope
Fluid path is closed, now withdrawing fluid is by drain pipe（1-2-1）Enter hollow cavity（1-4）Afterwards by rubber cushion（1-3）Block, gravity
Effect makes which again from drain pipe（1-2-1）Flow out, dropping funnel（2-1）Middle liquid continues dirty, normal infusion process recovery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237844.3A CN106492306A (en) | 2016-12-28 | 2016-12-28 | Transfusion device back-flow preventer and its using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237844.3A CN106492306A (en) | 2016-12-28 | 2016-12-28 | Transfusion device back-flow preventer and its using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106492306A true CN106492306A (en) | 2017-03-15 |
Family
ID=58334457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611237844.3A Pending CN106492306A (en) | 2016-12-28 | 2016-12-28 | Transfusion device back-flow preventer and its using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106492306A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106880887A (en) * | 2017-03-29 | 2017-06-23 | 江苏人先医疗科技有限公司 | Preventing gravity fluid infusion structure and its application method |
Citations (7)
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|---|---|---|---|---|
| CN103656780A (en) * | 2012-09-11 | 2014-03-26 | 郑州昊能科技有限公司 | Novel disposable venous transfusion double-direction positive pressure and negative pressure cut-off negative pressure conducting device |
| CN103656781A (en) * | 2012-09-21 | 2014-03-26 | 郑州昊能科技有限公司 | Venous transfusion one-way check device |
| CN204446782U (en) * | 2015-01-20 | 2015-07-08 | 浙江中医药大学附属第三医院 | A kind of transfusion device |
| CN104888310A (en) * | 2015-06-19 | 2015-09-09 | 河南曙光健士医疗器械集团股份有限公司 | Blood return prevention infusion connector |
| CN204684340U (en) * | 2015-05-29 | 2015-10-07 | 江苏瑞京科技发展有限公司 | A kind of transfusion Multi-ported device |
| CN204840478U (en) * | 2015-07-30 | 2015-12-09 | 中国人民解放军第三军医大学第三附属医院 | Can prevent transfusion system of blood refluence |
| CN206745698U (en) * | 2016-12-28 | 2017-12-15 | 天津哈娜好医材有限公司 | A kind of transfusion device back-flow preventer |
-
2016
- 2016-12-28 CN CN201611237844.3A patent/CN106492306A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103656780A (en) * | 2012-09-11 | 2014-03-26 | 郑州昊能科技有限公司 | Novel disposable venous transfusion double-direction positive pressure and negative pressure cut-off negative pressure conducting device |
| CN103656781A (en) * | 2012-09-21 | 2014-03-26 | 郑州昊能科技有限公司 | Venous transfusion one-way check device |
| CN204446782U (en) * | 2015-01-20 | 2015-07-08 | 浙江中医药大学附属第三医院 | A kind of transfusion device |
| CN204684340U (en) * | 2015-05-29 | 2015-10-07 | 江苏瑞京科技发展有限公司 | A kind of transfusion Multi-ported device |
| CN104888310A (en) * | 2015-06-19 | 2015-09-09 | 河南曙光健士医疗器械集团股份有限公司 | Blood return prevention infusion connector |
| CN204840478U (en) * | 2015-07-30 | 2015-12-09 | 中国人民解放军第三军医大学第三附属医院 | Can prevent transfusion system of blood refluence |
| CN206745698U (en) * | 2016-12-28 | 2017-12-15 | 天津哈娜好医材有限公司 | A kind of transfusion device back-flow preventer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106880887A (en) * | 2017-03-29 | 2017-06-23 | 江苏人先医疗科技有限公司 | Preventing gravity fluid infusion structure and its application method |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170315 |
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