CN101496920A - No-bubble infusion device - Google Patents
No-bubble infusion device Download PDFInfo
- Publication number
- CN101496920A CN101496920A CNA2008100941349A CN200810094134A CN101496920A CN 101496920 A CN101496920 A CN 101496920A CN A2008100941349 A CNA2008100941349 A CN A2008100941349A CN 200810094134 A CN200810094134 A CN 200810094134A CN 101496920 A CN101496920 A CN 101496920A
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- China
- Prior art keywords
- dropping funnel
- bubble
- transfusion
- burette
- liquid
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical appliances and discloses a bubble-free transfusion set comprising a bottle cork puncture outfit, a conduit, a dropping funnel, a burette, a filter, and the like. The bubble-free transfusion set is characterized in that one burette is arranged in the dropping funnel, the lower end of the burette is closed, and the pipe wall of the burette is provided with a side liquid drain hole. The dropping funnel is extruded, and a liquid medicine, when being sucked, passes through the burette, flows out of the side hole of the burette, and is sprayed to the inner pipe wall of the dropping funnel to flow down; and after a liquid level of the liquid medicine is accumulated to reach certain height, the liquid medicine automatically drives the air in the conduit until the air is exhausted when flowing into a transfusion needle through a lower conduit. The liquid medicine flows down along the inner wall of the dropping funnel and is accumulated at the lower end of the dropping funnel when being sucked into the dropping funnel so as to prevent gravity impact from producing the mixing of gas and liquid, so no bubble is formed and the bubble-free performance is achieved. The bubble-free transfusion set solves the problems that the prior transfusion set is easy to form bubbles and has difficult air exhaust during the transfusion, has simple and cheap applying technology, does not increase the cost, abandons the fussy operation of the prior air exhaust mode to improve transfusion efficiency, and greatly improves the safety of the transfusion.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of bubble-free infusion set.
Technical background
Existing transfusion device is made up of bottle plug puncture unit, conduit, dropping funnel, dropper and liquid medicine filter, dropping funnel need be inverted or use other loaded down with trivial details modes of operation such as pinch closing conduit could get rid of unnecessary gas during use.If lack experience, misoperation, the gas in liquid and the dropping funnel then forms the successive bubble of big section after being mixed into downcomer.Do not find because of carelessness, may cause bubble that human body is damaged even fatal, getting rid of these bubbles needs the nursing staff to carry out complicated time-consuming operation, not only reduces nursing efficiency, increases labor intensity, and the waste medicinal liquid, more likely cause nosocomial infection.The problem of exhaust problem has never found a kind of generally adaptive, cheap processing method efficiently that has since transfusion device comes out a nearly century.
Summary of the invention
The objective of the invention is to eliminate the deficiency in the disposable infusion set of present use, a kind of bubble-free infusion set rational in infrastructure is provided.Its mass production easy to implement simple in structure, need not increase any cost, also needn't change existing transfusion operation mode, only by changing the mode of liquid when dropper flows out dropping funnel, promptly effectively eliminate gas liquid and produced blended phenomenon, reached the performance that the transfusion device infusion channel does not have unnecessary bubble.
Bubble-free infusion set provided by the invention comprises a bottle plug puncture unit, a dropper, a dropping funnel, a transfusion needle, a downcomer and a filter; Described dropper is communicated with bottle plug puncture unit, and the dropper lower end closed has a side opening at least on its tube wall.
The object of the present invention is achieved like this: keep actuator to open, and the extruding dropping funnel, when medicinal liquid flowed into dropper, medicinal liquid injected to the dropping funnel inwall from the side opening that is positioned at tube wall, flowed down along the dropping funnel inwall.Because medicinal liquid is attached to the dropping funnel inwall and runs underneath to the accumulation of dropping funnel lower end, no splash and impact.When medicinal liquid is accumulated to liquid level and is higher than 1/2 dropping funnel height, do not produce the gas-liquid mixed phenomenon when liquid flows out into downcomer, can not form bubble, reach the effect that prevents bubble formation.
Bubble-free infusion set provided by the invention is because simple in structure, the function practicality, feasible process does not increase production cost again, and the dropper of being invented had both prevented the formation of bubble, satisfy nursing staff's usual operation again, can overcome the bubble that occurs under the multiple situation, solve the problem of exhaust problem when medical personnel infuse, when making transfusion become simple and direct and safe, do not increase medical burden, realistic meaning is widely arranged at reduction medical personnel's labor intensity and raising transfusion secure context.
Description of drawings
Fig. 1 is the structure chart of the bubble-free infusion set of proposition according to the present invention.
Fig. 2 is that dropper generalized section of the present invention and A-A are to generalized section.
The specific embodiment
Below in conjunction with the working condition of description of drawings according to the concrete device that the utility model proposes.
As shown in Figure 1, the bottle plug puncture unit 1 of bubble-free infusion set, dropper 2, dropping funnel 4, downcomer 5, transfusion needle 7 are communicated with and to constitute a transfusion device whole substantially in turn.One dropper 2 is arranged in the described dropping funnel 4, have a side opening 3 on its tube wall at least.
The bubble-free infusion set that the present invention proposes is work like this, as shown in Figure 1, keep actuator 6 to open during use, extruding dropping funnel 4, medicinal liquid is inhaled into dropper 2 through bottle plug puncture unit 1, because dropper 2 lower end closed, the medicinal liquid that flows into dropper 2 is under the effect of negative pressure and gravity, through being positioned at side opening 3 on dropper 2 tube walls, inject to the inwall of dropping funnel 4, and be adsorbed on inwall and go downwards to dropping funnel 4 lower ends.In downcomer 5 tube chambers under the drag effect of air, medicinal liquid is delayed discharge and accumulates in dropping funnel 4 lower ends, when the medicinal liquid liquid level rises to greater than 1/2 dropping funnel, 4 height in the accumulation of dropping funnel 4 lower ends, can make medicinal liquid enter downcomer 5, under action of gravity, medicinal liquid is discharged via downcomer 5, and drives downcomer 5 interior air and discharge through transfusion needle 7, and medicinal liquid enters human body through transfusion needle 7 thereupon.
Because under the restriction of dropper 2 and side opening 3, medicinal liquid is adsorbed on inwall when flowing in the dropping funnel 4 descending accumulation, no current impact phenomenon, and medicinal liquid flows into downcomer 5 through the accumulation back, enough storage capacities are arranged, produce the bubble whirlpool in the time of underfed can not being occurred, overall process does not have the gas-liquid mixing phenomena, depletion of QI bubbles out existing, and successive medicinal liquid is when entering downcomer 5 with the continuous liquid column state, can completely drive in the downcomer 5 air and discharge via transfusion needle 7, effectively prevent bubble appearance, adsorb and enter human body.
When medicinal liquid is flowed through dropper 2 and side opening 3, under the effect of negative pressure that dropping funnel 4 extruding forms and gravity, be the inwall that slight spurting is ejected into dropping funnel 4 with the fluid column form, when medicinal liquid is descending be accumulated to certain altitude and begin to enter downcomer after, the crimp of dropping funnel 4 is restored, the negative pressure of dropping funnel 4 intracavity is eliminated naturally, the captivation that acts on medicinal liquid weakens, medicinal liquid no longer forms jeting effect when dropper 2 flows out side opening 3, enter dropping funnel 4 and be the drop shape, can make the nurse observe medicinal liquid drop number in a usual manner, be convenient to regulate infusion flow.
Claims (3)
1, a kind of bubble-free infusion set of forming by bottle plug puncture unit, conduit, dropping funnel, dropper and filter etc., it is characterized in that having in the dropping funnel dropper, its upper end is communicated with the bottle plug puncture unit of transfusion device, the dropper lower end closed, and tube wall has the side opening of a discharge opeing at least.
2, bubble-free infusion set according to claim 1, the dropper tube wall that it is characterized in that carrying side opening departs from the centrage of dropper.
3, bubble-free infusion set according to claim 1, it is characterized in that side opening be provided with purpose for a change liquid discharge direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100941349A CN101496920A (en) | 2008-05-05 | 2008-05-05 | No-bubble infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100941349A CN101496920A (en) | 2008-05-05 | 2008-05-05 | No-bubble infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101496920A true CN101496920A (en) | 2009-08-05 |
Family
ID=40944328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100941349A Pending CN101496920A (en) | 2008-05-05 | 2008-05-05 | No-bubble infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101496920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970499A (en) * | 2016-10-21 | 2018-05-01 | 上海康德莱企业发展集团股份有限公司 | A kind of bias Automatic-exhaust transfusion system |
-
2008
- 2008-05-05 CN CNA2008100941349A patent/CN101496920A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970499A (en) * | 2016-10-21 | 2018-05-01 | 上海康德莱企业发展集团股份有限公司 | A kind of bias Automatic-exhaust transfusion system |
| CN107970499B (en) * | 2016-10-21 | 2023-11-21 | 上海康德莱企业发展集团股份有限公司 | Eccentric self-exhausting transfusion system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090805 |