CN102058912B - Self-venting bubble-free infusion set - Google Patents
Self-venting bubble-free infusion set Download PDFInfo
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- CN102058912B CN102058912B CN 200910223147 CN200910223147A CN102058912B CN 102058912 B CN102058912 B CN 102058912B CN 200910223147 CN200910223147 CN 200910223147 CN 200910223147 A CN200910223147 A CN 200910223147A CN 102058912 B CN102058912 B CN 102058912B
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Abstract
The invention relates to a self-venting bubble-free infusion set, which comprises a body comprising a venting tube connected with a lower catheter and a buffer body arranged in a dipper. The upper and lower ends of the venting tube are communicated; at least one venting groove is formed on a middle part of a side wall of the venting tube; the upper part of the venting tube is connected with the buffer body; the buffer body comprises a buffer surface and a handle connected with the buffer surface, wherein the handle has a hollow structure and is sealed on a part close to the buffer surface; and a circular air vent is formed at the lower end of the handle close to the sealed part. The self-venting bubble-free infusion set has the advantages that: automatic venting is realized through only one bottle inserting action during infusion, bubbles are not generated, and the infusion set is easy to operate and safe and reliable.
Description
Technical field
The present invention relates to a kind of transfusion device, relate in particular to the Anti-bubble pipe in dropping funnel in this transfusion device.
Background technology
At present, the disposable infusion set product that generally uses both at home and abroad all is by bottle plug puncture unit all less than than big difference, dropping funnel, conduit, actuator, filter, and venoclysis needle composition.In clinical use procedure, during the transfusion beginning, after bottle plug puncture unit is inserted infusion bottle, need the dropping funnel reversing is just being turned over after liquid reach a certain height, do like this to prevent bubble generation.But so operation is both loaded down with trivial details, lose time again, careless slightly or other reasons, also have a large amount of Bubble formations, behind the Bubble formation, the nursing staff need to get rid of bubble by the mode of extruding or pinch bullet, and in nursing procedure, most of bubble process of getting rid of, transfusion device need to be separated with intravenous needle, this way is troublesome poeration but also cause unexpected nosocomial infection not only, in exhaust process, has wasted long period and part medicinal liquid, bring loss to the patient, as because lacking experience, misoperation, liquids and gases enter downcomer after mixing, and may bring life danger to the patient.
China Patent No. 200720076629.X, name are called bubble-proof transfusion device, disclose a kind of bubble-proof transfusion device.
As shown in Figure 1 and Figure 2: Anti-bubble pipe 40 is that the notch 41 more than at least three is sealed, has on the side side of column type on a top.When medicinal liquid flows into dropping funnel, in the situation that is lower than the Anti-bubble pipe, because the surface tension effects of liquid, liquid can not flow out dropping funnel from the notch of Anti-bubble, and along with liquid level rises, three notches all are closed, because the continuing of liquid splashes into, the dropping funnel internal pressure strengthens, and greater than surface tension, liquid is fast from the notch inflow catheter.
Arrive in the process of dropping funnel owing to pass through bottle plug puncture unit and conduit at liquid in the use procedure, there are bubble or space in the above-mentioned pipeline, cause unstable liquid stream or impingement flow, the liquid that accumulates in the dropping funnel also has bubble retention or gas liquid mixture, these bubbles and gas liquid mixture can flow into downcomer from Anti-bubble tube seat mouth along with liquid, because dropping funnel internal pressure effect, the liquid velocity that begins to enter the Anti-bubble tube cavity is very fast, cause and have space formation in the tube chamber, along with the continuation of liquid is flowed out, the space can be full of liquid, and the gas in the space can form bubble along with liquid enters downcomer.
Although above-mentioned structure has the Anti-bubble effect, also can produce the Secondary cases bubble between variable interval, behind Bubble formation, can not automatically separate or get rid of, still need to get rid of from the lower end or carry out manual secondary exhaust, effect is unsatisfactory.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of from exhaust non-bubble infusion apparatus, are intended to solve above-mentioned defective.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: body; Described body comprises: the exhaustor that links to each other with downcomer and the buffer body in dropping funnel; Described exhaustor communicates at two ends up and down, and the middle part on sidewall has an air discharge duct at least, and exhaustor top links to each other with buffer body; Buffer body comprises: buffering suface and the handle that links to each other with buffering suface; Handle is hollow structure, and the position sealing near buffering suface near sealing place lower end, has a circular row pore on handle.
Compared with prior art, the invention has the beneficial effects as follows: adopt the present invention, only need a plug bottle action just to realize automatic vent during transfusion, and produce without bubble, simple to operate, safe and reliable.
Description of drawings
Fig. 1 is the Anti-bubble tubular construction sketch map that China Patent No. 200720076629.X, name are called bubble-proof transfusion device;
Fig. 2 is A place enlarged drawing among Fig. 1;
Fig. 3 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the present invention is described in further detail:
As seen from Figure 3: the present invention includes: body; Described body comprises: the exhaustor 1 that links to each other with downcomer and the buffer body in dropping funnel 2; Described exhaustor communicates at two ends about in the of 1, and the middle part on sidewall has an air discharge duct 11 at least, and exhaustor 1 top links to each other with buffer body 2; Buffer body 2 comprises: buffering suface 21 and the handle 22 that links to each other with buffering suface 21; Handle 22 is hollow structure, and the position sealing near buffering suface 21 near sealing place lower end, has a circular row pore 23 on handle 21;
The aperture of described circular row pore 23 is more than 50;
Have a groove 24 at described buffering suface 21 crown centers;
The shape of described buffering suface 21 is umbrellas.
The present invention is comprised of exhaustor and buffer body, and the length that is positioned at dropping funnel is more than the 10mm.Exhaustor communicates at two ends up and down, and the middle part on sidewall has an air discharge duct at least, and exhaustor top links to each other with buffer body, and the bottom links to each other with downcomer.The buffering suface diameter of buffer body is more than the 6mm, and the buffering suface crown center has a groove, and the effect of groove has been buffering; The handle that links to each other with buffering suface is hollow structure, and in the position sealing near buffering suface, buffering suface and handle is divided into two cavitys, near sealing place lower end, has 50 above circular row pores on handle.
The present invention in use, after bottle plug puncture unit inserts bottle, liquid runs into buffer body after splashing into dropping funnel through dropper, liquid drip on the buffering suface along buffering suface to around flow down, owing to be subject to speed and self gravitation impact when dirty, can form slight injection along the catadromous liquid of buffering suface, the liquid that sprays is after running into the dropping funnel wall, along the dropping funnel wall to dirty, because after surface tension of liquid effect, liquid are assembled in dropping funnel from the bottom to top, in a certain amount of, liquid can not flow into downcomer, and gas can be got rid of from air discharge duct and steam vent in the dropping funnel.When liquid reaches a certain amount of, because the formed active force of own wt of liquid is greater than the surface tension of air discharge duct surrounding liquid, liquid overcomes the obstruction of air discharge duct, flow into rapidly downcomer, owing to can form negative pressure when liquid is descending, the liquid that oozes from dropping funnel can accelerate to strengthen, in this process, flow into dropping funnel and aerofluxus liquid in pipe and increase, upwards reach gradually the handle inner chamber of buffer body, flow into downcomer downwards, in dropping funnel other of remaining space, other gases are all got rid of by exhaustor, and so far, whole exhaust process finishes.
Because the present invention is set, can not mix bubble liquid situation because impingement flow produces, because of the open architecture of exhaustor, there is not residual gas to produce in the cavity, therefore whole process only needs a plug bottle action just to realize automatic vent and produces without bubble, and is simple to operate, safe and reliable.
Claims (4)
1. one kind from exhaust non-bubble infusion apparatus, comprising: body; It is characterized in that: described body comprises: the exhaustor that links to each other with downcomer and the buffer body in dropping funnel; Described exhaustor communicates at two ends up and down, and the middle part on sidewall has an air discharge duct at least, and exhaustor top links to each other with buffer body; Buffer body comprises: buffering suface and the handle that links to each other with buffering suface; Handle is hollow structure, and the position sealing near buffering suface near sealing place lower end, has a circular row pore on handle.
2. according to claim 1 from exhaust non-bubble infusion apparatus, it is characterized in that: the aperture of described circular row pore is more than 50.
3. according to claim 1 from exhaust non-bubble infusion apparatus, it is characterized in that: have a groove at described buffering suface crown center.
4. according to claim 1 and 2 or 3 described from exhaust non-bubble infusion apparatus, it is characterized in that: the shape of described buffering suface is umbrella.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910223147 CN102058912B (en) | 2009-11-14 | 2009-11-14 | Self-venting bubble-free infusion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910223147 CN102058912B (en) | 2009-11-14 | 2009-11-14 | Self-venting bubble-free infusion set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102058912A CN102058912A (en) | 2011-05-18 |
| CN102058912B true CN102058912B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910223147 Active CN102058912B (en) | 2009-11-14 | 2009-11-14 | Self-venting bubble-free infusion set |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553014A (en) * | 2011-11-28 | 2012-07-11 | 上海宝舜医疗器械有限公司 | Automatic non-return drip chamber with automatic exhaust function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395260A (en) * | 1981-06-01 | 1983-07-26 | Sorenson Research Co., Inc. | Drip chamber |
| US5102400A (en) * | 1985-11-20 | 1992-04-07 | Saul Leibinsohn | Drip chamber for infusion apparatus |
| CN201211374Y (en) * | 2008-06-18 | 2009-03-25 | 江西洪达医疗器械集团有限公司 | Disposable safe liquor-filtration transfusion device |
| CN201564877U (en) * | 2009-11-14 | 2010-09-01 | 上海金塔医用器材有限公司 | Self-venting bubble-free infusion apparatus |
-
2009
- 2009-11-14 CN CN 200910223147 patent/CN102058912B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395260A (en) * | 1981-06-01 | 1983-07-26 | Sorenson Research Co., Inc. | Drip chamber |
| US5102400A (en) * | 1985-11-20 | 1992-04-07 | Saul Leibinsohn | Drip chamber for infusion apparatus |
| CN201211374Y (en) * | 2008-06-18 | 2009-03-25 | 江西洪达医疗器械集团有限公司 | Disposable safe liquor-filtration transfusion device |
| CN201564877U (en) * | 2009-11-14 | 2010-09-01 | 上海金塔医用器材有限公司 | Self-venting bubble-free infusion apparatus |
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| Publication number | Publication date |
|---|---|
| CN102058912A (en) | 2011-05-18 |
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